/* roulang page: index */
:root {
  --bg: #0a0c11;
  --surface-1: #11151d;
  --surface-2: #161b24;
  --line: rgba(148, 160, 178, 0.14);
  --line-strong: rgba(148, 160, 178, 0.25);
  --text: #f2f4f8;
  --muted: #94a0b2;
  --primary: #ff5a36;
  --primary-hover: #ff7557;
  --accent: #19c9b0;
  --accent-hover: #35e0c5;
  --warn: #ffc061;
  --radius-btn: 8px;
  --radius-card: 16px;
  --radius-large: 20px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.18);
  --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.36);
  --shadow-cta: 0 10px 32px rgba(255, 90, 54, 0.3);
  --font-stack: "PingFang SC", "Microsoft YaHei UI", "HarmonyOS Sans", "Noto Sans CJK SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  --container-w: 1200px;
  --space-section: clamp(72px, 8vw, 132px);
  --header-h: 76px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.no-scroll { overflow: hidden; }

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; border: none; background: none; cursor: pointer; color: inherit; text-align: left; }
input, textarea, select { font: inherit; }
svg { display: block; }

::selection { background: rgba(255, 90, 54, 0.28); color: #fff; }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding-left: clamp(16px, 4vw, 36px);
  padding-right: clamp(16px, 4vw, 36px);
}

.section { padding: var(--space-section) 0; }

.section-head {
  max-width: 780px;
  margin-bottom: clamp(36px, 5vw, 60px);
}

.section-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}

.section-kicker::after {
  content: "";
  width: 44px;
  height: 1px;
  background: var(--line-strong);
}

.section-title {
  font-size: clamp(1.6rem, 3.4vw, 2.75rem);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-top: 8px;
}

.section-lead {
  color: var(--muted);
  font-size: 16px;
  margin-top: 16px;
  max-width: 660px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn svg { width: 18px; height: 18px; }
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 3px solid rgba(25, 201, 176, 0.6); outline-offset: 2px; }

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 8px 22px rgba(255, 90, 54, 0.22);
}

.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: var(--shadow-cta);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border-color: rgba(242, 244, 248, 0.28);
  color: var(--text);
}

.btn-outline:hover {
  border-color: rgba(242, 244, 248, 0.7);
  background: rgba(242, 244, 248, 0.06);
}

.btn-lg { height: 56px; padding: 0 38px; font-size: 16px; border-radius: 10px; }
.btn-sm { height: 40px; padding: 0 18px; font-size: 14px; }

.card {
  background: var(--surface-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  z-index: 1000;
  background: rgba(10, 12, 17, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(10, 12, 17, 0.94);
  border-bottom-color: var(--line);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-mark {
  position: relative;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.brand-mark svg { width: 100%; height: 100%; }

.brand-text {
  font-size: 21px;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
  display: flex;
  align-items: baseline;
  gap: 3px;
  color: #fff;
}

.brand-text small {
  font-size: 12px;
  font-weight: 700;
  background: var(--primary);
  color: #fff;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.08em;
  transform: translateY(-3px);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  height: 44px;
  padding: 0 16px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  color: rgba(242, 244, 248, 0.78);
  transition: color 0.25s ease, background 0.25s ease;
}

.nav-link:hover { color: #fff; background: rgba(148, 160, 178, 0.1); }
.nav-link.active { color: var(--primary); }
.nav-link.active:hover { background: transparent; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 8px;
}

.online-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 0 12px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  background: rgba(17, 21, 29, 0.5);
  letter-spacing: 0.04em;
}

.online-badge i {
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(25, 201, 176, 0.16);
  flex: 0 0 7px;
  animation: pulseDot 2.4s ease infinite;
}

@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 2px rgba(25, 201, 176, 0.12); }
  50% { box-shadow: 0 0 0 6px rgba(25, 201, 176, 0.28); }
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--surface-1);
  transition: border-color 0.2s ease;
}

.nav-toggle:hover { border-color: var(--primary); }
.nav-toggle svg { width: 20px; height: 20px; }

.chip-version {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 700;
  color: var(--warn);
  background: rgba(255, 192, 97, 0.08);
  border: 1px solid rgba(255, 192, 97, 0.2);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
}

.chip-version i {
  width: 4px;
  height: 4px;
  background: var(--warn);
  border-radius: 50%;
  display: inline-block;
}

/* Mobile Drawer */
.nav-drawer {
  display: none;
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding-top: var(--header-h);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(105deg, rgba(10, 12, 17, 0.96) 0%, rgba(10, 12, 17, 0.86) 42%, rgba(10, 12, 17, 0.42) 100%),
    linear-gradient(180deg, rgba(10, 12, 17, 0.4) 0%, rgba(10, 12, 17, 0) 28%),
    linear-gradient(180deg, rgba(10, 12, 17, 0) 55%, rgba(10, 12, 17, 0.96) 100%);
}

.hero-inner {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  padding-top: 60px;
  padding-bottom: 108px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 90, 54, 0.1);
  border: 1px solid rgba(255, 90, 54, 0.28);
  border-radius: var(--radius-pill);
  color: #ffb4a1;
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}

.hero-tag i {
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  display: inline-block;
}

.hero h1 {
  font-size: clamp(2rem, 5.5vw, 4.2rem);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: -0.035em;
  margin-bottom: 22px;
  color: #fff;
  text-wrap: balance;
}

.hero h1 .accent-text { color: var(--primary); }
.hero h1 .accent-line { color: var(--accent); }

.hero-lead {
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.8;
  color: #c2cad6;
  max-width: 590px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 44px;
}

.hero-tags-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-tags-row span {
  display: inline-flex;
  align-items: center;
  height: 28px;
  background: rgba(17, 21, 29, 0.76);
  border: 1px solid rgba(148, 160, 178, 0.18);
  border-radius: var(--radius-pill);
  padding: 0 13px;
  color: #aeb6c3;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.hero-visual {
  position: relative;
  min-height: 420px;
}

.hero-visual-card {
  position: absolute;
  border-radius: var(--radius-large);
  border: 1px solid rgba(148, 160, 178, 0.16);
  background: rgba(17, 21, 29, 0.68);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
}

.hero-visual-main {
  right: 20px;
  top: 30px;
  width: min(360px, 78%);
  aspect-ratio: 4 / 5.2;
  z-index: 2;
}

.hero-visual-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-card-tag {
  position: absolute;
  left: 14px;
  bottom: 14px;
  background: rgba(10, 12, 17, 0.7);
  border: 1px solid rgba(148, 160, 178, 0.2);
  border-radius: var(--radius-pill);
  padding: 7px 13px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  backdrop-filter: blur(8px);
}

.hero-visual-mini {
  width: 196px;
  left: 0;
  bottom: 20px;
  padding: 18px;
  z-index: 3;
}

.hero-mini-title {
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-mini-title svg { width: 16px; height: 16px; color: var(--accent); }

.hero-speed {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.hero-speed b {
  font-size: 30px;
  font-weight: 900;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.hero-speed span { font-size: 12px; color: var(--muted); }

.hero-visual-note {
  position: absolute;
  right: 40px;
  bottom: 0;
  width: 148px;
  padding: 14px 16px;
  z-index: 1;
  background: rgba(255, 90, 54, 0.1);
  border: 1px solid rgba(255, 90, 54, 0.18);
  box-shadow: none;
}

.hero-note-label {
  font-size: 12px;
  color: #b8c0ce;
  margin-bottom: 4px;
}

.hero-note-value {
  font-size: 18px;
  font-weight: 900;
  color: var(--primary);
}

.hero-statusbar {
  position: relative;
  z-index: 4;
  border-top: 1px solid rgba(148, 160, 178, 0.12);
  background: rgba(10, 12, 17, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.status-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.status-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 16px;
  border-left: 1px solid rgba(148, 160, 178, 0.1);
}

.status-item:first-child { border-left: none; }

.status-item svg { width: 20px; height: 20px; color: var(--accent); }

.status-item .s-label { font-size: 13px; color: var(--muted); display: block; line-height: 1.3; }
.status-item .s-value { font-size: 15px; font-weight: 800; color: var(--text); font-variant-numeric: tabular-nums; }

/* Feature section */
.features-wrap {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
}

.feature-main {
  position: relative;
  padding: 36px;
  display: flex;
  flex-direction: column;
  min-height: 320px;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1f2b 0%, var(--surface-1) 60%);
  border-color: rgba(255, 90, 54, 0.18);
}

.feature-main::after {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  right: -80px;
  top: -80px;
  background: radial-gradient(circle, rgba(255, 90, 54, 0.18) 0%, transparent 68%);
  pointer-events: none;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(255, 90, 54, 0.12);
  border: 1px solid rgba(255, 90, 54, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
}

.feature-icon svg { width: 24px; height: 24px; }
.feature-icon[data-accent="true"] { background: rgba(25, 201, 176, 0.1); border-color: rgba(25, 201, 176, 0.26); color: var(--accent); }

.feature-main h3 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 12px;
}

.feature-main p { color: var(--muted); max-width: 480px; font-size: 15px; }

.feature-stats {
  display: flex;
  gap: 24px;
  margin-top: auto;
  padding-top: 24px;
  flex-wrap: wrap;
}

.feature-stats > div {
  font-variant-numeric: tabular-nums;
}

.feature-stats strong {
  display: block;
  font-size: 24px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1.2;
}

.feature-stats small { font-size: 13px; color: var(--muted); }

.feature-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.feature-panel {
  padding: 26px;
  flex: 1;
  position: relative;
  overflow: hidden;
}

.feature-panel:hover {
  transform: translateY(-4px);
  border-color: rgba(25, 201, 176, 0.28);
}

.feature-panel .feature-icon { margin-bottom: 16px; width: 40px; height: 40px; border-radius: 11px; }
.feature-panel .feature-icon svg { width: 20px; height: 20px; }
.feature-panel h3 { font-size: 17px; font-weight: 800; margin-bottom: 8px; }
.feature-panel p { font-size: 14px; color: var(--muted); line-height: 1.7; }
.feature-panel .feature-link { display: inline-block; margin-top: 16px; color: var(--primary); font-size: 14px; font-weight: 700; }
.feature-panel .feature-link:hover { color: var(--primary-hover); }

.feature-panel-wide-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
}

.feature-wide {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 22px;
}

.feature-wide .feature-icon { flex-shrink: 0; margin-bottom: 0; }
.feature-wide h3 { font-size: 16px; font-weight: 800; margin-bottom: 6px; }
.feature-wide p { font-size: 14px; color: var(--muted); }
.feature-wide:hover { transform: translateY(-4px); border-color: rgba(25, 201, 176, 0.24); }

/* Showcase */
.showcase { background: linear-gradient(180deg, var(--bg) 0%, #0d1017 100%); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.showcase-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.showcase-frame {
  position: relative;
  border-radius: var(--radius-large);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-hover);
}

.showcase-frame > img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }

.showcase-frame .frame-bar {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 40px;
  background: rgba(10, 12, 17, 0.52);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  display: flex;
  align-items: center;
  padding: 0 14px;
  gap: 6px;
}

.showcase-frame .frame-bar i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--line-strong);
}

.showcase-frame .frame-bar i:first-child { background: var(--primary); }
.showcase-frame .frame-bar i:nth-child(2) { background: var(--warn); }
.showcase-frame .frame-bar i:nth-child(3) { background: var(--accent); }

.showcase-copy h3 {
  font-size: 26px;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 16px;
}

.showcase-copy > p {
  color: var(--muted);
  margin-bottom: 26px;
  line-height: 1.9;
}

.showcase-points {
  border-top: 1px solid var(--line);
  margin-top: 18px;
}

.showcase-point {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  color: #cbd3df;
}

.showcase-point svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
  flex-shrink: 0;
}

.showcase-thumbs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
}

.thumb-tile {
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface-1);
  transition: all 0.3s ease;
}

.thumb-tile:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: var(--shadow-hover); }
.thumb-tile img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.thumb-tile span { display: block; padding: 10px 14px; font-size: 14px; font-weight: 700; color: #d6dde8; }

/* updates */
.updates-panel {
  display: flex;
  gap: clamp(20px, 4vw, 48px);
  align-items: flex-start;
}

.updates-side {
  width: 240px;
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--header-h) + 24px);
}

.filter-list { display: flex; flex-direction: column; gap: 4px; }

.filter-btn {
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-radius: 10px;
  border: 1px solid transparent;
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
  width: 100%;
  transition: all 0.2s ease;
}

.filter-btn:hover { background: rgba(148, 160, 178, 0.1); color: var(--text); }

.filter-btn.active {
  background: rgba(255, 90, 54, 0.08);
  border-color: rgba(255, 90, 54, 0.24);
  color: var(--primary);
}

.filter-btn .count {
  font-size: 12px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 8px;
  height: 22px;
  display: inline-flex;
  align-items: center;
}

.updates-main { flex: 1; min-width: 0; }

.update-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.news-row {
  display: grid;
  grid-template-columns: 172px 1fr;
  gap: 22px;
  padding: 16px;
  border-radius: var(--radius-card);
  background: var(--surface-1);
  border: 1px solid var(--line);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  align-items: center;
  overflow: hidden;
}

.news-row:hover {
  transform: translateY(-3px);
  border-color: rgba(25, 201, 176, 0.3);
  box-shadow: var(--shadow-hover);
}

.news-thumb {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.news-row:hover .news-thumb img { transform: scale(1.05); }

.news-content { min-width: 0; padding-right: 8px; }

.news-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; flex-wrap: wrap; }

.news-tag {
  display: inline-flex;
  align-items: center;
  height: 22px;
  background: rgba(25, 201, 176, 0.08);
  border: 1px solid rgba(25, 201, 176, 0.2);
  padding: 0 10px;
  border-radius: var(--radius-pill);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

.news-date {
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}

.news-title {
  display: block;
  font-size: 17px;
  font-weight: 800;
  color: #f2f4f8;
  line-height: 1.5;
  max-height: 3em;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  margin-bottom: 8px;
}

.news-excerpt {
  display: block;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  max-height: 3.4em;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  margin-bottom: 8px;
}

.news-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
}

.updates-empty {
  grid-column: 1 / -1;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--surface-1);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-card);
  color: var(--muted);
  gap: 12px;
  padding: 40px;
}

.updates-empty svg { width: 36px; height: 36px; color: var(--line-strong); }

/* Proof */
.proof { background: var(--surface-1); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.proof-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 52px;
}

.proof-stat { text-align: center; padding: 34px 12px; border-radius: var(--radius-card); border: 1px solid var(--line); background: var(--surface-2); position: relative; }

.proof-stat::after {
  content: "";
  width: 90px;
  height: 2px;
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.proof-stat .p-num {
  font-size: clamp(2rem, 4vw, 3.1rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  color: #fff;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  margin-bottom: 8px;
}

.proof-stat .p-num sup { color: var(--primary); font-size: 0.5em; font-weight: 800; top: -0.7em; position: relative; }
.proof-stat .p-label { color: var(--muted); font-size: 14px; font-weight: 600; }

.proof-bottom { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 28px; align-items: center; }

.proof-quote {
  position: relative;
  padding: 28px 36px;
  border-radius: var(--radius-card);
  background: linear-gradient(135deg, rgba(25, 201, 176, 0.06) 0%, var(--surface-2) 60%);
  border: 1px solid rgba(25, 201, 176, 0.2);
  font-size: 20px;
  line-height: 1.9;
  color: #e4e9f1;
  font-weight: 600;
}

.proof-quote::before {
  content: "“";
  font-size: 68px;
  line-height: 0.8;
  color: var(--accent);
  position: absolute;
  left: 14px;
  top: 12px;
  opacity: 0.35;
}

.proof-quote cite {
  display: block;
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
  font-style: normal;
  font-weight: 500;
}

.proof-badges { display: flex; flex-wrap: wrap; gap: 12px; }

.badge-square {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  height: 52px;
  padding: 0 18px;
  background: var(--surface-2);
  color: #d4dae4;
  font-size: 14px;
  font-weight: 700;
}

.badge-square svg { width: 20px; height: 20px; color: var(--warn); }

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.price-card {
  position: relative;
  padding: 32px 28px;
  background: var(--surface-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-large);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: var(--line-strong); }

.price-card.featured {
  background: linear-gradient(180deg, rgba(255, 90, 54, 0.05) 0%, var(--surface-1) 50%);
  border-color: rgba(255, 90, 54, 0.5);
  box-shadow: 0 12px 36px rgba(255, 90, 54, 0.12);
  padding-top: 46px;
}

.plan-recommend {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  height: 28px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  display: inline-flex;
  align-items: center;
  padding: 0 18px;
  border-radius: var(--radius-pill);
  box-shadow: 0 6px 16px rgba(255, 90, 54, 0.4);
  white-space: nowrap;
}

.price-name { font-size: 18px; font-weight: 800; margin-bottom: 6px; }
.price-desc { color: var(--muted); font-size: 13px; margin-bottom: 20px; }

.price-number {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 22px;
  color: #fff;
}

.price-number b {
  font-size: clamp(2.2rem, 3vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}

.price-number span { font-size: 14px; color: var(--muted); }

.plan-list { display: flex; flex-direction: column; gap: 14px; margin-bottom: 32px; flex: 1; }

.plan-list li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: #ced5e0; line-height: 1.5; }
.plan-list li svg { width: 18px; height: 18px; color: var(--accent); flex-shrink: 0; }

.price-card .btn { width: 100%; }

/* FAQ */
.faq-wrap { max-width: 880px; margin: 0 auto; }

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface-1);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.faq-item.is-open { border-color: rgba(255, 90, 54, 0.32); }

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 20px 22px;
  min-height: 64px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  transition: color 0.2s ease;
}

.faq-q:hover { color: var(--primary); }

.faq-q .faq-idx {
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  width: 26px;
  flex-shrink: 0;
  transition: color 0.2s ease;
}

.faq-item.is-open .faq-idx { color: var(--primary); }

.faq-q .faq-q-text { flex: 1; }

.faq-q .chevron {
  width: 20px;
  height: 20px;
  color: var(--muted);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
}

.faq-item.is-open .chevron {
  color: var(--primary);
  transform: rotate(45deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s ease, padding 0.3s ease;
  padding: 0 22px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.faq-item.is-open .faq-a {
  max-height: 280px;
  padding-bottom: 22px;
}

/* CTA */
.cta-section { padding-top: 0; padding-bottom: clamp(90px, 10vw, 150px); }
.cta-box { position: relative; border-radius: 28px; overflow: hidden; border: 1px solid rgba(255, 90, 54, 0.2); padding: clamp(44px, 7vw, 84px) clamp(24px, 5vw, 80px); text-align: center; background: radial-gradient(ellipse at 30% 0%, rgba(255, 90, 54, 0.22) 0%, transparent 50%), radial-gradient(ellipse at 80% 100%, rgba(25, 201, 176, 0.13) 0%, transparent 45%), #0e1118; }
.cta-box::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(148,160,178,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(148,160,178,0.04) 1px, transparent 1px); background-size: 52px 52px; pointer-events: none; }

.cta-box h2 { font-size: clamp(1.9rem, 5vw, 3.4rem); font-weight: 900; letter-spacing: -0.03em; line-height: 1.2; max-width: 720px; margin: 0 auto 18px; position: relative; }
.cta-box p { color: var(--muted); max-width: 560px; margin: 0 auto 38px; font-size: 16px; position: relative; }
.cta-box .btn { position: relative; }

/* Footer */
.site-footer { background: #0b0e13; border-top: 1px solid var(--line); padding-top: 64px; }

.footer-grid { display: grid; grid-template-columns: 1.3fr 0.8fr 1fr 0.9fr; gap: 40px; padding-bottom: 48px; }

.footer-brand .brand-text { color: #fff; margin-bottom: 14px; }

.footer-desc { color: var(--muted); font-size: 14px; line-height: 1.85; max-width: 320px; }

.footer-col h4 { font-size: 15px; font-weight: 800; margin-bottom: 16px; color: #fff; letter-spacing: 0.02em; }

.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: var(--muted); font-size: 14px; transition: color 0.2s ease, padding-left 0.2s ease; }
.footer-col ul a:hover { color: var(--primary); padding-left: 4px; }

.footer-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.footer-tags span { font-size: 12px; color: #798598; background: var(--surface-1); border: 1px solid var(--line); padding: 5px 12px; border-radius: var(--radius-pill); }

.footer-tech { display: flex; flex-direction: column; gap: 12px; }
.footer-tech-item { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--muted); }
.footer-tech-item svg { width: 16px; height: 16px; color: var(--accent); flex-shrink: 0; }

.footer-bottom { border-top: 1px solid var(--line); padding: 20px 0; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: #697586; }
.footer-bottom p, .footer-bottom span { font-size: 13px; }

.footer-bottom a { color: #697586; }
.footer-bottom a:hover { color: var(--primary); }

/* Floating CTA */
.float-cta { position: fixed; right: 22px; bottom: 24px; z-index: 900; display: flex; align-items: center; gap: 10px; transition: opacity 0.35s ease, transform 0.35s ease; }
.float-cta.is-hide { opacity: 0; pointer-events: none; transform: translateY(16px); }

.back-top-btn {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-pill);
  background: var(--surface-1);
  border: 1px solid var(--line-strong);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
}

.back-top-btn:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }
.back-top-btn svg { width: 18px; height: 18px; }

.float-main {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 46px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-pill);
  padding: 0 22px;
  font-weight: 800;
  font-size: 14px;
  box-shadow: 0 14px 28px rgba(255, 90, 54, 0.32);
  transition: all 0.25s ease;
}

.float-main:hover { background: var(--primary-hover); transform: translateY(-3px); box-shadow: 0 18px 34px rgba(255, 90, 54, 0.4); }
.float-main svg { width: 17px; height: 17px; }

/* Scroll-enter reveal */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.in-view { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; padding-bottom: 60px; }
  .hero-visual { display: none; }
  .status-list { grid-template-columns: repeat(3, 1fr); }
  .main-nav { display: none; }
  .header-actions .online-badge { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-drawer {
    display: block;
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: rgba(10, 12, 17, 0.98);
    z-index: 990;
    padding: 32px 24px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
  }

  .nav-drawer.open { transform: translateX(0); }

  .nav-drawer-inner { max-width: 480px; margin: 0 auto; }

  .nav-drawer .drawer-links { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }

  .drawer-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    font-size: 19px;
    font-weight: 800;
    border-bottom: 1px solid var(--line);
    color: var(--text);
    transition: color 0.2s ease, padding-left 0.2s ease;
  }

  .drawer-link:hover, .drawer-link.active { color: var(--primary); padding-left: 6px; }

  .drawer-cta { margin-top: 16px; }

  .features-wrap { grid-template-columns: 1fr; }
  .proof-stats { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .showcase-layout { grid-template-columns: 1fr; }
  .proof-bottom { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .updates-panel { flex-direction: column; }
  .updates-side { width: 100%; position: static; }
  .filter-list { flex-direction: row; flex-wrap: wrap; }
  .filter-btn { width: auto; height: 40px; padding: 0 18px; }
  .filter-btn .count { margin-left: 8px; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .section { padding: clamp(64px, 9vw, 96px) 0; }
  .hero { min-height: auto; }
  .hero-inner { padding-top: 44px; padding-bottom: 46px; }
  .hero h1 { font-size: clamp(1.72rem, 7vw, 2.3rem); }
  .hero-actions .btn { flex: 1; min-width: 160px; }
  .feature-main { padding: 26px; }
  .feature-panel-wide-row { grid-template-columns: 1fr; }
  .showcase-thumbs { grid-template-columns: 1fr; }
  .news-row { grid-template-columns: 1fr; padding: 12px; }
  .news-thumb { aspect-ratio: 16 / 8; }
  .proof-stats { gap: 14px; }
  .status-list { grid-template-columns: 1fr; }
  .status-item { border-left: none; border-bottom: 1px solid var(--line); justify-content: flex-start; }
  .status-item:last-child { border-bottom: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .float-cta { right: 14px; bottom: 14px; }
}

@media (max-width: 520px) {
  .brand-text { font-size: 18px; }
  .brand-text small { font-size: 10px; padding: 1px 6px; }
  .header-actions .btn-sm { height: 36px; padding: 0 14px; font-size: 13px; }
  .hero-tags-row { display: none; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .proof-stats { grid-template-columns: 1fr; }
  .cta-box { padding: 48px 20px; }
  .cta-box .btn { width: 100%; max-width: 320px; }
  .feature-stats { flex-direction: column; gap: 12px; }
  .showcase-copy h3 { font-size: 22px; }
  .faq-q { padding: 16px; }
  .faq-a { padding: 0 16px; }
  .faq-item.is-open .faq-a { padding-bottom: 16px; }
  .news-row { grid-template-columns: 1fr; }
  .float-main { width: 46px; padding: 0; justify-content: center; border-radius: 50%; }
  .float-main span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    transition-duration: 0.001s !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* roulang page: category1 */
:root{
  --bg:#0A0C11;
  --surface-1:#11151D;
  --surface-2:#161B24;
  --surface-3:#1C222D;
  --line:rgba(242,244,248,.09);
  --line-strong:rgba(242,244,248,.18);
  --txt:#F2F4F8;
  --muted:#94A0B2;
  --brand:#FF5A36;
  --brand-2:#19C9B0;
  --warn:#F2C15B;
  --radius-md:8px;
  --radius-lg:16px;
  --radius-xl:20px;
  --shadow-card:0 4px 16px rgba(0,0,0,.18);
  --shadow-hover:0 18px 44px rgba(0,0,0,.36);
  --shadow-brand:0 10px 28px rgba(255,90,54,.24);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei UI","HarmonyOS Sans","Noto Sans CJK SC","Segoe UI",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--txt);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border:0}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
.container{width:min(1200px,92vw);margin-inline:auto}
.skip-link{
  position:fixed;top:-60px;left:18px;z-index:9999;
  background:var(--brand);color:#fff;padding:8px 14px;border-radius:0 0 8px 8px;
  font-size:14px;transition:top .2s;
}
.skip-link:focus{top:0;color:#fff}
.brand{
  display:inline-flex;align-items:center;gap:12px;
}
.brand-mark{
  width:42px;height:42px;flex:0 0 auto;
  filter:drop-shadow(0 4px 12px rgba(255,90,54,.22));
}
.brand-text{
  font-size:22px;font-weight:900;letter-spacing:.5px;
  display:flex;align-items:baseline;line-height:1;
}
.brand-text small{
  font-size:12px;font-weight:700;color:var(--brand);
  margin-left:6px;border:1px solid rgba(255,90,54,.5);
  border-radius:999px;padding:2px 7px;letter-spacing:1px;
}
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(10,12,17,.5);
  border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s,box-shadow .3s;
}
.site-header.is-scrolled{
  background:rgba(10,12,17,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:0 8px 30px rgba(0,0,0,.26);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
}
.main-nav{
  display:flex;align-items:center;gap:4px;
  margin-inline:auto;
}
.main-nav .nav-link{
  position:relative;
  color:rgba(242,244,248,.72);
  font-size:15px;font-weight:600;
  padding:9px 15px;border-radius:8px;
  transition:color .2s;
}
.main-nav .nav-link:hover{
  color:#fff;background:rgba(242,244,248,.06);
}
.main-nav .nav-link.active{
  color:var(--brand);
}
.main-nav .nav-link.active::after{
  position:absolute;left:15px;right:15px;bottom:1px;
  height:2px;border-radius:99px;background:var(--brand);
  content:"";
}
.header-actions{
  display:flex;align-items:center;gap:12px;
}
.online-badge{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--muted);font-size:13px;font-weight:600;
  border:1px solid var(--line-strong);
  padding:5px 12px;border-radius:99px;
  background:rgba(25,201,176,.04);
}
.online-badge i{
  width:7px;height:7px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 0 4px rgba(25,201,176,.13);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  font-weight:800;font-size:15px;
  padding:12px 24px;border-radius:var(--radius-md);
  border:1px solid transparent;
  transition:transform .22s,box-shadow .22s,background .22s,border-color .22s,color .22s;
  white-space:nowrap;
}
.btn:focus-visible,.nav-link:focus-visible,.nav-toggle:focus-visible{
  outline:3px solid rgba(25,201,176,.6);
  outline-offset:3px;
}
.btn-primary{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  box-shadow:var(--shadow-brand);
}
.btn-primary:hover{
  background:#ff6b4d;
  transform:translateY(-1px);
  box-shadow:0 15px 36px rgba(255,90,54,.3);
}
.btn-ghost{
  background:rgba(255,255,255,.02);
  border-color:var(--line-strong);
  color:var(--txt);
}
.btn-ghost:hover{
  border-color:rgba(242,244,248,.36);
  background:rgba(255,255,255,.06);
  transform:translateY(-1px);
}
.btn-sm{padding:8px 18px;font-size:14px;border-radius:var(--radius-md)}
.btn-lg{padding:16px 34px;font-size:16px;border-radius:12px}
.nav-toggle{
  display:none;width:44px;height:44px;
  border:1px solid var(--line-strong);
  border-radius:10px;align-items:center;justify-content:center;
  color:var(--txt);
}
.nav-toggle svg{width:24px;height:24px}

/* mobile drawer */
.mobile-drawer{
  position:fixed;inset:0;z-index:150;
  background:rgba(10,12,17,.98);
  transform:translateX(100%);
  transition:transform .32s ease;
  display:flex;flex-direction:column;
  padding:88px 28px 30px;
}
.mobile-drawer.is-open{transform:translateX(0)}
.mobile-drawer .drawer-close{
  position:absolute;top:18px;right:20px;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  color:var(--txt);
}
.mobile-drawer .drawer-close svg{width:22px;height:22px}
.drawer-nav{display:flex;flex-direction:column;gap:8px;margin-top:20px}
.drawer-nav a{
  font-size:24px;font-weight:800;color:rgba(242,244,248,.68);
  padding:12px 4px;border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand)}
.drawer-extra{margin-top:34px;display:flex;flex-direction:column;gap:14px}

/* channel hero */
.channel-hero{
  min-height:66vh;
  position:relative;
  display:flex;align-items:center;
  padding:140px 0 80px;
  overflow:hidden;
}
.channel-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  transform:scale(1.04);
}
.channel-overlay{
  position:absolute;inset:0;
  background:
   radial-gradient(60% 80% at 68% 40%,rgba(255,90,54,.13),transparent 62%),
   linear-gradient(105deg,rgba(10,12,17,.96) 10%,rgba(10,12,17,.72) 58%,rgba(10,12,17,.28) 100%);
}
.channel-content{position:relative;z-index:2;max-width:860px}
.channel-kicker{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--brand-2);font-size:13px;font-weight:800;
  letter-spacing:3px;
  border:1px solid rgba(25,201,176,.3);
  padding:5px 15px 5px 9px;border-radius:99px;
  background:rgba(25,201,176,.05);
  margin-bottom:24px;
}
.channel-kicker::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--brand-2);
}
.channel-hero h1{
  font-size:clamp(2rem,5.4vw,4.15rem);
  font-weight:900;line-height:1.12;
  letter-spacing:1px;
  margin-bottom:20px;
}
.channel-hero h1 em{
  font-style:normal;color:var(--brand);
}
.channel-hero .lead{
  font-size:clamp(16px,2vw,18px);
  color:rgba(242,244,248,.76);
  max-width:660px;
  margin-bottom:32px;
  line-height:1.8;
}
.channel-actions{display:flex;flex-wrap:wrap;gap:14px}
.channel-meta{
  display:flex;flex-wrap:wrap;gap:22px;
  margin-top:40px;
  padding-top:24px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:13px;
}
.channel-meta span{display:inline-flex;align-items:center;gap:7px}
.channel-meta b{
  color:#fff;font-weight:800;
  font-variant-numeric:tabular-nums;
}
.channel-meta i{
  width:5px;height:5px;border-radius:50%;background:var(--warn);
}

/* section */
.section-block{padding:96px 0;border-bottom:1px solid var(--line)}
.section-block.alt-bg{background:linear-gradient(180deg,var(--surface-1),var(--bg));}
.sec-head{
  display:flex;flex-direction:column;
  gap:10px;margin-bottom:48px;
}
.sec-index{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);font-size:12px;font-weight:900;
  letter-spacing:3px;
}
.sec-index::after{
  content:"";width:38px;height:2px;background:var(--brand-2);
  border-radius:2px;
}
.sec-head h2{
  font-size:clamp(1.7rem,3.4vw,2.7rem);
  font-weight:800;line-height:1.25;
}
.sec-desc{
  color:var(--muted);font-size:15px;max-width:680px;
}
.section-foot{
  margin-top:30px;color:var(--muted);font-size:14px;
}

/* editorial method */
.method-grid{
  display:grid;grid-template-columns:4fr 6fr;
  gap:28px;align-items:stretch;
}
.method-media{
  position:relative;
  border-radius:var(--radius-xl);
  overflow:hidden;
  min-height:390px;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.method-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .55s ease;
}
.method-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,transparent 46%,rgba(10,12,17,.86) 94%);
}
.method-label{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:800;color:#fff;
  background:rgba(255,90,54,.18);border:1px solid rgba(255,90,54,.24);
  padding:6px 14px;border-radius:99px;
  backdrop-filter:blur(6px);
}
.method-copy{
  display:flex;flex-direction:column;gap:0;
  background:var(--surface-1);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  padding:10px 28px;
  box-shadow:var(--shadow-card);
}
.method-copy .method-lead{
  padding:22px 0 14px;
  color:var(--muted);
  font-size:15px;
}
.method-row{
  display:flex;gap:18px;
  padding:20px 0;
  border-top:1px solid var(--line);
  transition:background .2s;
}
.method-row:hover{background:rgba(242,244,248,.02)}
.method-row .num{
  min-width:38px;height:38px;
  border-radius:10px;
  background:rgba(25,201,176,.08);
  border:1px solid rgba(25,201,176,.18);
  color:var(--brand-2);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:14px;
  font-variant-numeric:tabular-nums;
}
.method-row h3{
  font-size:16px;font-weight:800;margin-bottom:6px;
}
.method-row p{
  color:var(--muted);font-size:14px;line-height:1.75;
}

/* curation */
.curation-grid{
  display:flex;flex-direction:column;gap:16px;
}
.curation-item{
  display:grid;grid-template-columns:230px 1fr 170px;
  gap:22px;align-items:center;
  background:var(--surface-1);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  padding:12px 22px 12px 12px;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.curation-item:hover{
  transform:translateY(-4px);
  border-color:rgba(255,90,54,.34);
  box-shadow:var(--shadow-hover);
}
.curation-thumb{
  width:230px;height:130px;
  border-radius:12px;
  overflow:hidden;
}
.curation-thumb img{
  width:100%;height:100%;object-fit:cover;
  flex:0 0 auto;
}
.curation-body .curation-tags{display:flex;gap:8px;margin-bottom:8px;flex-wrap:wrap}
.curation-tag{
  font-size:11px;font-weight:800;
  color:rgba(242,244,248,.72);
  background:rgba(242,244,248,.07);
  border:1px solid var(--line-strong);
  border-radius:99px;
  padding:2px 10px;
}
.curation-tag.hot{
  color:var(--warn);
  border-color:rgba(241,193,91,.35);
  background:rgba(241,193,91,.06);
}
.curation-tag.cyber{
  color:var(--brand-2);
  border-color:rgba(25,201,176,.35);
  background:rgba(25,201,176,.06);
}
.curation-tag.orange{
  color:var(--brand);
  border-color:rgba(255,90,54,.4);
  background:rgba(255,90,54,.08);
}
.curation-body h3{font-size:18px;font-weight:800;margin-bottom:6px}
.curation-body p{color:var(--muted);font-size:14px;line-height:1.7}
.curation-link{
  justify-self:end;
  color:var(--brand-2);
  font-size:14px;font-weight:800;
  padding:9px 16px;
  border:1px solid rgba(25,201,176,.26);
  border-radius:99px;
  transition:background .2s,color .2s,transform .2s;
}
.curation-link:hover{
  background:var(--brand-2);
  color:#0A0C11;
  transform:translateX(3px);
}
.curation-note{
  display:flex;align-items:center;gap:12px;
  margin-top:14px;
  background:rgba(25,201,176,.04);
  border:1px dashed rgba(25,201,176,.25);
  border-radius:var(--radius-md);
  padding:14px 18px;
  color:var(--muted);
  font-size:13px;
}
.curation-note svg{
  width:18px;height:18px;color:var(--brand-2);flex:0 0 auto;
}

/* safe process */
.process-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:16px;
  position:relative;
}
.process-card{
  background:var(--surface-1);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:30px 22px 26px;
  position:relative;
  overflow:hidden;
  transition:transform .25s,border-color .25s;
}
.process-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
  opacity:0;
  transition:opacity .25s;
}
.process-card:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.process-card:hover::before{opacity:1}
.process-card .pc-num{
  font-size:38px;font-weight:900;
  color:transparent;
  -webkit-text-stroke:1px rgba(255,90,54,.38);
  line-height:1;
  margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.process-card h3{font-size:17px;font-weight:800;margin-bottom:8px}
.process-card p{font-size:13px;color:var(--muted);line-height:1.72}
.process-arrow{
  position:absolute;top:50%;right:-19px;
  width:38px;height:2px;background:linear-gradient(90deg,var(--brand),transparent);
  transform:translateY(-50%);
  z-index:3;
}

/* proof */
.proof-panel{
  background:linear-gradient(115deg,var(--surface-1),var(--surface-2) 60%,rgba(255,90,54,.08));
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  padding:52px 44px;
}
.proof-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:30px;text-align:center;
}
.proof-block{position:relative}
.proof-block:not(:last-child)::after{
  content:"";position:absolute;right:-15px;top:18%;height:64%;
  width:1px;background:var(--line);
}
.proof-num{
  font-size:clamp(32px,4vw,50px);
  font-weight:900;
  color:#fff;
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  letter-spacing:1px;
}
.proof-num span{color:var(--brand);font-size:.62em;margin-left:4px}
.proof-label{
  color:var(--muted);
  font-size:13px;
  margin-top:8px;
}
.proof-sub{
  margin-top:30px;padding-top:22px;
  text-align:center;
  border-top:1px solid var(--line);
  color:var(--muted);font-size:13px;
}
/* faq */
.faq-wrap{
  max-width:860px;
}
.faq-item{
  background:var(--surface-1);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  margin-bottom:14px;
  transition:border-color .25s;
  overflow:hidden;
}
.faq-item.is-active{border-color:rgba(255,90,54,.38)}
.faq-q{
  width:100%;
  display:flex;align-items:center;gap:16px;
  text-align:left;
  padding:20px 24px;
  font-size:16px;font-weight:700;
  color:var(--txt);
}
.faq-q .fq-num{
  font-weight:900;color:var(--muted);font-size:14px;
  font-variant-numeric:tabular-nums;
  min-width:24px;
}
.faq-item.is-active .faq-q .fq-num{color:var(--brand)}
.faq-q .fq-icon{
  margin-left:auto;width:28px;height:28px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);
  border:1px solid var(--line-strong);
  border-radius:50%;
  transition:transform .25s,background .2s,color .2s;
}
.faq-q .fq-icon svg{width:14px;height:14px}
.faq-item.is-active .faq-q .fq-icon{
  transform:rotate(45deg);
  color:var(--brand);
  border-color:rgba(255,90,54,.4);
}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a-inner{
  padding:0 24px 22px 64px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
}

/* CTA */
.cta-band{
  position:relative;
  overflow:hidden;
  padding:80px 0;
  background:none;
  border-bottom:1px solid var(--line);
}
.cta-inner{
  position:relative;z-index:2;
  text-align:center;
  background:
    radial-gradient(340px 220px at 50% 0%,rgba(255,90,54,.15),transparent 70%),
    rgba(17,21,29,.92);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-xl);
  padding:76px 30px;
  max-width:1060px;
  margin-inline:auto;
}
.cta-inner h2{
  font-size:clamp(1.7rem,3.6vw,2.9rem);
  font-weight:900;
  max-width:760px;
  margin:0 auto 14px;
  line-height:1.25;
}
.cta-inner p{
  color:var(--muted);
  font-size:15px;
  max-width:600px;
  margin:0 auto 32px;
  line-height:1.8;
}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}

/* footer */
.site-footer{
  background:var(--surface-1);
  border-top:1px solid var(--line);
  padding:68px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .9fr 1.1fr 1.1fr;
  gap:34px;
  padding-bottom:44px;
  border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:14px}
.footer-desc{
  color:var(--muted);
  font-size:13px;
  line-height:1.85;
  max-width:320px;
}
.footer-col h4{
  font-size:14px;
  font-weight:800;
  margin-bottom:18px;
  color:rgba(242,244,248,.92);
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{
  color:var(--muted);font-size:13px;
  transition:color .2s,padding-left .2s;
}
.footer-col ul a:hover{color:var(--brand);padding-left:5px}
.footer-tech{display:flex;flex-direction:column;gap:12px}
.footer-tech-item{
  display:flex;gap:9px;align-items:flex-start;
  color:var(--muted);font-size:13px;line-height:1.75;
}
.footer-tech-item svg{
  width:16px;height:16px;color:var(--brand-2);
  margin-top:3px;flex:0 0 auto;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:22px;
  color:rgba(148,160,178,.75);
  font-size:12px;
  gap:14px;flex-wrap:wrap;
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:#fff}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags span{
  font-size:12px;
  color:rgba(148,160,178,.92);
  background:rgba(242,244,248,.04);
  border:1px solid var(--line);
  padding:5px 12px;
  border-radius:99px;
}

/* floating top */
.float-top{
  position:fixed;
  right:22px;bottom:22px;z-index:90;
  width:48px;height:48px;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface-2);
  border:1px solid var(--line-strong);
  color:var(--muted);
  border-radius:50%;
  box-shadow:var(--shadow-card);
  opacity:0;
  pointer-events:none;
  transition:opacity .3s,bottom .3s,color .2s,border-color .2s;
}
.float-top.is-show{opacity:1;pointer-events:auto}
.float-top:hover{
  color:var(--brand);border-color:rgba(255,90,54,.45);
  bottom:28px;
}
.float-top:hover .float-tip{
  opacity:1;transform:translateX(0);
}
.float-top svg{width:20px;height:20px}
.float-tip{
  position:absolute;right:58px;top:50%;
  transform:translateX(6px);
  opacity:0;
  transition:opacity .2s,transform .2s;
  color:var(--txt);
  background:var(--surface-3);
  border:1px solid var(--line-strong);
  border-radius:8px;
  padding:6px 10px;
  font-size:12px;font-weight:600;
  white-space:nowrap;
}

/* reveal */
[data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s ease,transform .5s ease;
}
[data-reveal].is-visible{
  opacity:1;
  transform:none;
}

@media (max-width:1100px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:992px){
  .main-nav{display:none}
  .nav-toggle{
    display:inline-flex;
  }
  .online-badge{display:none}
  .method-grid{grid-template-columns:1fr}
  .curation-item{grid-template-columns:200px 1fr}
  .curation-thumb{width:200px;height:130px}
  .curation-link{grid-column:1 / -1;justify-self:start}
  .process-grid{grid-template-columns:1fr 1fr}
  .process-card:nth-child(even) .process-arrow{display:none}
  .proof-grid{grid-template-columns:1fr 1fr;gap:20px}
  .section-block{padding:72px 0}
  .channel-hero{min-height:auto;padding:120px 0 64px}
}
@media (max-width:768px){
  .header-inner{gap:12px;height:66px}
  .brand-mark{width:36px;height:36px}
  .brand-text{font-size:18px}
  .header-actions .btn{display:none}
  .curation-item{grid-template-columns:1fr;padding:14px}
  .curation-thumb{width:100%;height:180px}
  .process-arrow{display:none}
  .channel-actions .btn{width:48%;}
  .section-block{padding:58px 0}
  .sec-head{margin-bottom:32px}
  .footer-grid{grid-template-columns:1fr;gap:38px}
  .footer-brand .brand{margin-bottom:12px}
  .footer-bottom{flex-direction:column;justify-content:center;text-align:center}
  .cta-inner{padding:50px 22px}
  .channel-meta{gap:14px}
  .channel-meta span{width:calc(50% - 7px)}
  .cta-actions .btn{width:78%;max-width:340px}
  .channel-actions{width:100%}
}
@media (max-width:520px){
  .header-actions .online-badge{display:none}
  .channel-hero{padding:104px 0 48px}
  .channel-hero .lead{font-size:15px}
  .faq-q{padding:17px 18px;font-size:15px}
  .faq-a-inner{padding:0 18px 18px 52px}
  .process-grid{grid-template-columns:1fr}
  .proof-panel{padding:38px 20px}
  .method-copy{padding:4px 18px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001s!important;
    transition-duration:.001s!important;
  }
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none}
}

/* roulang page: article */
:root {
  --bg: #0A0C11;
  --bg2: #0D1118;
  --surface: #11151D;
  --surface2: #161B24;
  --surface3: #1B212C;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #F2F4F8;
  --text2: #C2CCD9;
  --muted: #94A0B2;
  --accent: #FF5A36;
  --accent-2: #19C9B0;
  --yellow: #FFC53D;
  --radius-s: 8px;
  --radius-m: 16px;
  --radius-l: 22px;
  --shadow: 0 4px 16px rgba(0,0,0,.18);
  --shadow-hover: 0 18px 36px rgba(0,0,0,.34);
  --font-main: "PingFang SC", "Microsoft YaHei UI", "HarmonyOS Sans", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.nav-open { overflow: hidden; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; color: inherit; }
ul, ol { list-style: none; }
svg { flex-shrink: 0; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-narrow {
  max-width: 860px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

body { padding-top: 78px; }

::selection { background: rgba(255, 90, 54, .3); color: #fff; }

:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 22px;
  border-radius: var(--radius-s);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255,255,255,.18);
  transition: all .3s ease;
  white-space: nowrap;
  text-align: center;
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 6px 22px rgba(255,90,54,.25);
}
.btn-primary:hover {
  background: #ff6b4c;
  transform: translateY(-1px);
  border-color: #ff6b4c;
  box-shadow: 0 8px 28px rgba(255,90,54,.34);
}
.btn-ghost { border-color: rgba(255,255,255,.22); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-2); transform: translateY(-1px); }
.btn-sm { height: 38px; padding: 0 18px; font-size: 14px; border-radius: var(--radius-s); }
.btn-block { width: 100%; }

/* ===== Buttons as link ===== */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-2);
  font-size: 15px;
  font-weight: 600;
}
.text-link svg { width: 16px; height: 16px; transition: transform .3s ease; }
.text-link:hover svg { transform: translateX(4px); }

/* ===== header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 78px;
  background: rgba(10,12,17,.82);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: background .35s ease, border-color .35s ease, box-shadow .35s ease;
}
.site-header.is-scrolled {
  background: rgba(7,9,13,.94);
  border-bottom-color: var(--border);
  box-shadow: 0 10px 30px rgba(0,0,0,.2);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  height: 78px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}
.brand-mark {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,90,54,.08);
  border-radius: 13px;
  transition: background .3s;
}
.brand-mark svg { width: 40px; height: 40px; }
.brand-text {
  font-weight: 900;
  font-size: 20px;
  color: #fff;
  letter-spacing: .01em;
  white-space: nowrap;
}
.brand-text small {
  font-size: 11px;
  font-weight: 800;
  color: var(--accent);
  background: rgba(255,90,54,.12);
  border: 1px solid rgba(255,90,54,.25);
  border-radius: 5px;
  padding: 1px 5px;
  margin-left: 4px;
  vertical-align: 2px;
  letter-spacing: .08em;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.main-nav .nav-link {
  padding: 0 14px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text2);
  height: 78px;
  display: inline-flex;
  align-items: center;
  position: relative;
  transition: color .25s ease;
}
.main-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -1px;
  height: 3px;
  border-radius: 4px 4px 0 0;
  background: var(--accent);
  opacity: 0;
  transform: scaleX(.2);
  transition: all .3s ease;
}
.main-nav .nav-link:hover, .main-nav .nav-link.active { color: #fff; }
.main-nav .nav-link:hover::after, .main-nav .nav-link.active::after { opacity: 1; transform: scaleX(1); }
.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  margin-left: 8px;
}
.online-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 28px;
  padding: 0 11px;
  font-size: 12px;
  font-weight: 700;
  color: #d9f8f1;
  background: rgba(25,201,176,.1);
  border: 1px solid rgba(25,201,176,.28);
  border-radius: 999px;
  white-space: nowrap;
}
.online-badge i {
  width: 7px; height: 7px;
  background: var(--accent-2);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(25,201,176,.45);
  animation: onlinePulse 2.4s infinite;
}
@keyframes onlinePulse {
  0% { box-shadow: 0 0 0 0 rgba(25,201,176,.5); }
  70% { box-shadow: 0 0 0 7px rgba(25,201,176,0); }
  100% { box-shadow: 0 0 0 0 rgba(25,201,176,0); }
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
  color: #fff;
}
.nav-toggle svg { width: 22px; height: 22px; }

/* header mobile drawer */
.mobile-overlay {
  position: fixed;
  inset: 0;
  z-index: 89;
  background: rgba(5,7,10,.62);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
body.nav-open .mobile-overlay { opacity: 1; pointer-events: auto; }
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(360px, 86vw);
  z-index: 101;
  background: #0E1219;
  border-left: 1px solid var(--border);
  padding: 26px 24px 32px;
  transform: translateX(102%);
  transition: transform .35s cubic-bezier(.4,0,.2,1);
  overflow-y: auto;
}
body.nav-open .mobile-drawer { transform: translateX(0); }
.drawer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}
.drawer-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.12);
  color: var(--text);
}
.drawer-close svg { width: 20px; height: 20px; }
.drawer-nav { display: flex; flex-direction: column; gap: 2px; }
.drawer-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 4px;
  font-size: 21px;
  font-weight: 700;
  color: var(--text2);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.drawer-link.active, .drawer-link:hover { color: var(--accent); }
.drawer-link svg { width: 18px; height: 18px; opacity: .6; }
.drawer-cta { margin-top: 36px; }
.drawer-tip {
  margin-top: 16px;
  color: var(--muted);
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.drawer-tip i { width: 6px; height: 6px; background: var(--accent-2); border-radius: 50%; }

/* ===== Article layout ===== */
.article-main {
  background:
    radial-gradient(ellipse 900px 430px at 14% -10%, rgba(255,90,54,.08), transparent 60%),
    radial-gradient(ellipse 700px 380px at 88% 10%, rgba(25,201,176,.06), transparent 60%),
    var(--bg);
}
.article-shell {
  padding: 56px 0 72px;
}

.article-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.article-crumb {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  min-width: 0;
}
.article-crumb a { color: var(--muted); font-size: 13px; font-weight: 500; transition: color .2s; }
.article-crumb a:hover { color: var(--accent); }
.article-crumb svg { width: 14px; height: 14px; margin: 0 8px; color: var(--muted); opacity: .7; }
.article-crumb span { color: var(--muted); font-size: 13px; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 230px;}
.lang-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 11px;
  border-radius: 99px;
  background: rgba(25,201,176,.1);
  border: 1px solid rgba(25,201,176,.28);
  color: #cdf7ef;
  font-size: 12px;
  font-weight: 700;
}
.lang-chip i { width: 5px; height: 5px; border-radius: 50%; background: var(--accent-2); }
.article-cat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 13px;
  background: rgba(255,90,54,.11);
  border: 1px solid rgba(255,90,54,.34);
  color: #ffc3b4;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
}

.article-heading {
  margin-bottom: 24px;
}
.article-heading h1 {
  font-size: clamp(1.85rem, 4.3vw, 3.4rem);
  font-weight: 900;
  line-height: 1.2;
  color: #f6f7fb;
  letter-spacing: -.01em;
  margin: 12px 0 0;
  text-wrap: pretty;
}
@media (min-width: 860px) {
  .article-heading h1 { max-width: 800px; }
}

.article-meta-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 18px;
  padding: 14px 16px;
  background: rgba(17,21,29,.8);
  border-radius: 14px;
  border: 1px solid var(--border);
  margin-bottom: 24px;
}
.meta-group {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: .02em;
}
.meta-group svg { width: 15px; height: 15px; color: var(--muted); opacity: .8; }
.meta-group strong { color: var(--text2); font-weight: 600; }
.meta-divider { width: 1px; height: 14px; background: rgba(255,255,255,.1); }
.meta-more { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 13px; }

.article-led {
  border: 1px solid rgba(255,90,54,.22);
  border-left-width: 4px;
  border-radius: 12px;
  padding: 20px 22px;
  background: rgba(255,90,54,.045);
  color: var(--text2);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 36px;
}
.article-led-title {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: .1em;
  margin-bottom: 8px;
}
.article-led-title svg { width: 14px; height: 14px; }
.article-led p { margin-bottom: 0; }

/* Rich text */
.article-richtext {
  color: var(--text2);
  font-size: 16.5px;
  line-height: 1.8;
  background: transparent;
}
.article-richtext > * + * { margin-top: 1em; }
.article-richtext h2, .article-richtext h3, .article-richtext h4 {
  color: #f5f6fa;
  font-weight: 800;
  line-height: 1.4;
  margin-top: 2.2em;
  text-wrap: balance;
}
.article-richtext h2 {
  font-size: 1.65em;
  border-left: 4px solid var(--accent);
  padding-left: 16px;
  margin-bottom: .8em;
}
.article-richtext h3 {
  font-size: 1.25em;
  padding-left: 2px;
  margin-bottom: .7em;
}
.article-richtext h4 { font-size: 1.08em; margin-bottom: .5em; }
.article-richtext p { margin-bottom: 1.1em; }
.article-richtext strong { color: #f9fafc; font-weight: 700; }
.article-richtext img {
  border-radius: 16px;
  border: 1px solid var(--border);
  width: 100%;
  height: auto;
  margin: 1.8em 0;
  box-shadow: var(--shadow);
}
.article-richtext a { color: var(--accent-2); border-bottom: 1px solid rgba(25,201,176,.4); transition: border .2s; padding-bottom: 1px; }
.article-richtext a:hover { border-color: var(--accent-2); color: #cffcf4; }
.article-richtext ul, .article-richtext ol {
  padding-left: 22px;
  margin: 1.2em 0 1.4em;
}
.article-richtext ul li { list-style: disc; margin-bottom: .5em; padding-left: 4px; }
.article-richtext ol li { list-style: decimal; margin-bottom: .5em; padding-left: 4px; }
.article-richtext blockquote {
  border-left: 4px solid var(--accent-2);
  background: rgba(25,201,176,.05);
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  color: var(--text2);
  margin: 1.5em 0;
}
.article-richtext blockquote p { margin-bottom: 0; }
.article-richtext hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.6em 0;
}
.article-richtext code {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.09);
  color: #ffd0c2;
  padding: 2px 7px;
  border-radius: 6px;
  font-size: .9em;
}
.article-richtext pre {
  background: #0d1016;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  overflow-x: auto;
  margin: 1.8em 0;
}
.article-richtext pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: #cdd7e3;
  font-size: 14px;
  line-height: 1.7;
}
.article-richtext table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 1.8em 0;
  border-radius: 12px;
  overflow: hidden;
}
.article-richtext th {
  background: rgba(255,255,255,.07);
  color: #f2f5fa;
  font-weight: 700;
  padding: 12px 14px;
  text-align: left;
}
.article-richtext td {
  padding: 11px 14px;
  border-top: 1px solid var(--border);
  background: rgba(255,255,255,.02);
  color: var(--text2);
}
.article-richtext td, .article-richtext th { vertical-align: top; }

/* article tags + action */
.article-bottom-box {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  margin-top: 54px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 20px;
  justify-content: space-between;
  align-items: center;
}
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.tag-label {
  font-size: 13px;
  color: var(--muted);
  margin-right: 4px;
  font-weight: 600;
}
.tag {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 12px;
  color: var(--text2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 99px;
  font-size: 12px;
  font-weight: 600;
  transition: border .25s, color .25s;
}
.tag:hover { border-color: rgba(255,90,54,.55); color: var(--accent); }
.article-back {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-2);
}
.article-back svg { width: 16px; height: 16px; }
.article-back:hover svg { transform: translateX(-4px); }

/* related section */
.related-section { padding: 70px 0 20px; border-top: 1px solid rgba(255,255,255,.05); margin-top: 70px; }
.section-heading.small { margin-bottom: 24px; }
.section-heading .section-no {
  display: inline-block;
  font-size: 13px;
  font-weight: 800;
  color: var(--accent-2);
  letter-spacing: .14em;
  margin-bottom: 7px;
}
.section-heading h2 {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 24px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 16px;
  overflow: hidden;
  transition: transform .32s ease, border-color .32s ease, box-shadow .32s ease;
}
.related-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255,90,54,.4);
  box-shadow: var(--shadow-hover);
}
.related-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--surface2);
}
.related-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s cubic-bezier(.4,0,.2,1);
}
.related-card:hover .related-media img { transform: scale(1.045); }
.related-body {
  padding: 16px 18px 19px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.related-meta {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.related-body strong {
  font-size: 16px;
  font-weight: 700;
  color: #eff1f6;
  line-height: 1.5;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.related-body small {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  margin-top: auto;
}

/* empty state */
.article-empty {
  min-height: 54vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 22px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: rgba(255,255,255,.02);
}
.article-empty .empty-icon {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: rgba(255,90,54,.1);
  border: 1px solid rgba(255,90,54,.26);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.article-empty .empty-icon svg { width: 36px; height: 36px; color: var(--accent); }
.article-empty h2 { font-size: 26px; margin-bottom: 10px; }
.article-empty p { color: var(--muted); margin-bottom: 28px; }

/* shared bottom CTA site wide */
.site-cta {
  padding: 62px 0;
  background: rgba(255,90,54,.05);
  border-top: 1px solid rgba(255,90,54,.12);
  border-bottom: 1px solid rgba(255,90,54,.12);
}
.site-cta .cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.site-cta h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 6px; }
.site-cta p { color: var(--muted); max-width: 640px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer {
  background: #07090D;
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr .9fr 1.1fr 1.1fr;
  gap: 36px;
  padding-bottom: 46px;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-desc { color: var(--muted); font-size: 14px; max-width: 360px; line-height: 1.75; margin-top: 14px;}
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  color: #fff;
}
.footer-col ul li + li { margin-top: 12px; }
.footer-col ul a { color: var(--muted); font-size: 14px; transition: color .2s, padding-left .2s; }
.footer-col ul a:hover { color: var(--accent); padding-left: 4px; }
.footer-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.footer-tags span {
  height: 28px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  font-size: 12px;
  border-radius: 8px;
  color: var(--text2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.06);
}
.footer-tech { display: flex; flex-direction: column; gap: 13px; }
.footer-tech-item { color: var(--muted); font-size: 13px; display: inline-flex; gap: 8px; align-items: center; }
.footer-tech-item svg { width: 15px; height: 15px; color: var(--accent-2); }
.footer-bottom {
  padding: 22px 0;
  border-top: 1px solid rgba(255,255,255,.07);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 16px;
}
.footer-bottom p { color: var(--muted); font-size: 13px; }

/* Floating CTA */
.float-cta {
  position: fixed;
  right: 24px;
  bottom: 26px;
  z-index: 85;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 0 20px;
  height: 48px;
  border-radius: 999px;
  box-shadow: 0 12px 28px rgba(0,0,0,.28), 0 2px 10px rgba(255,90,54,.45);
  font-size: 14px;
  font-weight: 700;
  transition: transform .25s, background .25s, opacity .25s;
  opacity: 1;
}
.float-cta svg { width: 18px; height: 18px; }
.float-cta:hover { background: #ff6b4d; transform: translateY(-3px); }
.float-cta.is-dimmed { opacity: .16; pointer-events: none; }
.float-backtop {
  right: 84px;
  bottom: 30px;
  background: #161B24;
  border: 1px solid rgba(255,255,255,.16);
  box-shadow: none;
  color: var(--text2);
}
.float-backtop:hover { background: #1d232f; color: #fff; }


/* ===== reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .5s ease, transform .5s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ===== responsive ===== */
@media (max-width: 1024px) {
  .online-badge { display: none; }
  .main-nav .nav-link { font-size: 14px; padding: 0 10px; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}

@media (max-width: 860px) {
  .article-main { background: radial-gradient(ellipse 560px 320px at 25% -20%, rgba(255,90,54,.07), transparent 60%), var(--bg); }
  .main-nav { display: none; }
  .header-actions .btn-primary { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-actions { margin-left: auto; }
  .online-badge { display: none; }
  .article-heading h1 { font-size: clamp(1.55rem, 3.5vw, 2.4rem); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.2fr 1fr; row-gap: 28px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  body { padding-top: 68px; }
  .site-header, .header-inner { height: 68px; }
  .brand-text { font-size: 18px; }
  .brand-mark { width: 38px; height: 38px; }
  .brand-mark svg { width: 36px; height: 36px; }
  .container { padding-left: 16px; padding-right: 16px; }
  .container-narrow { padding-left: 16px; padding-right: 16px; }
  .article-shell { padding: 30px 0 44px; }
  .article-crumb span { max-width: 130px; }
  .lang-chip { display: none; }
  .article-led { padding: 16px; margin-bottom: 26px; }
  .article-richtext { font-size: 15.5px; line-height: 1.85; }
  .article-richtext blockquote { margin-left: 0; margin-right: 0; }
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .related-section { padding-top: 50px; margin-top: 48px; }
  .article-bottom-box { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .float-cta { bottom: 16px; right: 16px; height: 44px; padding: 0 16px; }
  .float-backtop { right: 66px; }
}

@media (max-width: 400px) {
  .header-actions .online-badge { display: none; }
  .brand-text small { display: none; }
}

/* roulang page: category2 */
:root {
            --bg-body: #0A0C11;
            --bg-surface-1: #11151D;
            --bg-surface-2: #161B24;
            --bg-surface-3: #1D232F;
            --accent-primary: #FF5A36;
            --accent-secondary: #19C9B0;
            --accent-warning: #F5C443;
            --text-primary: #F2F4F8;
            --text-secondary: #94A0B2;
            --text-muted: #6B7685;
            --border-subtle: rgba(255, 255, 255, 0.07);
            --border-strong: rgba(255, 255, 255, 0.14);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --shadow-card: 0 4px 16px rgba(0, 0, 0, .18);
            --shadow-hover: 0 20px 40px rgba(0, 0, 0, .35);
            --container-width: 1200px;
            --header-height: 72px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei UI", "HarmonyOS Sans", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
            background: var(--bg-body);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.75;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        body.no-scroll {
            overflow: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input {
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .container-wider {
            max-width: 1280px;
        }
        .container-narrow {
            max-width: 860px;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            z-index: 1000;
            background: rgba(10, 12, 17, .86);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
        }
        .site-header.scrolled {
            background: rgba(10, 12, 17, .96);
            border-bottom-color: var(--border-subtle);
            box-shadow: 0 8px 30px rgba(0, 0, 0, .3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-mark {
            width: 42px;
            height: 42px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .brand-mark svg {
            width: 40px;
            height: 40px;
        }
        .brand-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            line-height: 1.2;
            white-space: nowrap;
            display: flex;
            align-items: baseline;
            gap: 4px;
        }
        .brand-text small {
            font-size: 12px;
            font-weight: 500;
            color: var(--accent-primary);
            border: 1px solid rgba(255, 90, 54, .5);
            border-radius: 999px;
            padding: 1px 7px;
            letter-spacing: 1px;
            transform: translateY(-2px);
            background: rgba(255, 90, 54, .08);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 auto;
        }
        .main-nav .nav-link {
            display: inline-block;
            padding: 7px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: color .2s ease, background-color .2s ease;
        }
        .main-nav .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, .04);
        }
        .main-nav .nav-link.active {
            color: var(--accent-primary);
            font-weight: 600;
            background: rgba(255, 90, 54, .1);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .online-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-surface-1);
            border: 1px solid var(--border-subtle);
            padding: 4px 14px;
            border-radius: 999px;
            white-space: nowrap;
        }
        .online-badge i {
            width: 7px;
            height: 7px;
            background: #19C9B0;
            border-radius: 50%;
            box-shadow: 0 0 8px rgba(25, 201, 176, .7);
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            border-radius: 8px;
            border: 1px solid transparent;
            transition: transform .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease;
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(255, 90, 54, .5);
            outline-offset: 2px;
        }
        .btn-sm {
            font-size: 14px;
            padding: 8px 20px;
        }
        .btn-md {
            font-size: 15px;
            padding: 12px 28px;
        }
        .btn-lg {
            font-size: 17px;
            padding: 15px 42px;
        }
        .btn-primary {
            background: var(--accent-primary);
            border-color: var(--accent-primary);
            color: #0A0C11;
            font-weight: 700;
        }
        .btn-primary:hover {
            background: #ff7557;
            border-color: #ff7557;
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(255, 90, 54, .35);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, .25);
            color: var(--text-primary);
        }
        .btn-outline:hover {
            border-color: rgba(255, 255, 255, .6);
            background: rgba(255, 255, 255, .04);
            transform: translateY(-1px);
        }
        .btn-dark {
            background: rgba(255, 255, 255, .08);
            border-color: transparent;
            color: var(--text-primary);
        }
        .btn-dark:hover {
            background: rgba(255, 255, 255, .14);
            transform: translateY(-1px);
        }
        .btn-block {
            width: 100%;
            justify-content: center;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            background: var(--bg-surface-2);
            border: 1px solid var(--border-subtle);
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            transition: background-color .2s ease, border-color .2s ease;
        }
        .nav-toggle:hover {
            background: var(--bg-surface-3);
            border-color: var(--border-strong);
        }
        .nav-toggle svg {
            width: 24px;
            height: 24px;
        }

        /* 移动端抽屉 */
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1100;
            background: rgba(10, 12, 17, .98);
            opacity: 0;
            visibility: hidden;
            transition: opacity .3s ease, visibility .3s ease;
            overflow-y: auto;
        }
        .mobile-drawer.open {
            opacity: 1;
            visibility: visible;
        }
        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            padding: 0 24px;
            border-bottom: 1px solid var(--border-subtle);
        }
        .drawer-close {
            width: 42px;
            height: 42px;
            background: var(--bg-surface-2);
            border: 1px solid var(--border-subtle);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            font-size: 24px;
            transition: background-color .2s ease;
        }
        .drawer-close:hover {
            background: var(--bg-surface-3);
        }
        .drawer-nav {
            padding: 30px 24px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .drawer-nav a {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
            padding: 14px 16px;
            border-radius: 12px;
            transition: background-color .2s ease, color .2s ease;
        }
        .drawer-nav a:hover {
            background: rgba(255, 255, 255, .04);
        }
        .drawer-nav a.active {
            color: var(--accent-primary);
            background: rgba(255, 90, 54, .08);
        }
        .drawer-actions {
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            border-top: 1px solid var(--border-subtle);
        }
        .drawer-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-surface-1);
            border: 1px solid var(--border-subtle);
            padding: 8px 16px;
            border-radius: 999px;
            justify-content: center;
        }
        .drawer-badge i {
            width: 8px;
            height: 8px;
            background: #19C9B0;
            border-radius: 50%;
        }

        /* ===== 页面主体 ===== */
        .main {
            padding-top: var(--header-height);
        }

        /* ===== 频道 Hero ===== */
        .channel-hero {
            background-color: #0a0c11;
            background-image: linear-gradient(135deg, rgba(255, 90, 54, .22) 0%, rgba(10, 12, 17, .7) 55%, rgba(10, 12, 17, .9) 100%), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 30%;
            position: relative;
            overflow: hidden;
            padding: 100px 0;
            border-bottom: 1px solid var(--border-subtle);
        }
        .channel-hero-inner {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 24px;
            max-width: 680px;
        }
        .channel-hero .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(25, 201, 176, .12);
            border: 1px solid rgba(25, 201, 176, .35);
            color: #19C9B0;
            border-radius: 999px;
            padding: 5px 18px;
            font-size: 14px;
            font-weight: 500;
        }
        .channel-hero h1 {
            font-size: clamp(2rem, 4.6vw, 3.4rem);
            font-weight: 900;
            line-height: 1.16;
            letter-spacing: 1px;
        }
        .channel-hero h1 .highlight {
            color: var(--accent-primary);
        }
        .channel-hero p.lead {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 4px;
        }
        .channel-hero .hero-meta-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            padding-top: 8px;
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 6px;
        }
        .channel-hero .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .channel-hero .hero-meta-item svg {
            width: 16px;
            height: 16px;
            stroke: var(--accent-secondary);
        }

        /* ===== 通用区块 ===== */
        .section {
            padding: 88px 0;
        }
        .section-alt {
            background: var(--bg-surface-1);
        }
        .section-header {
            margin-bottom: 42px;
            max-width: 620px;
        }
        .section-header .section-index {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent-secondary);
            letter-spacing: 2px;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .section-header .section-index::after {
            content: '';
            display: inline-block;
            width: 36px;
            height: 1px;
            background: rgba(25, 201, 176, .4);
        }
        .section-header h2 {
            font-size: clamp(1.55rem, 3.2vw, 2.5rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: .5px;
            margin-bottom: 14px;
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
        }
        .section-header.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-header.center .section-index {
            justify-content: center;
        }
        .section-header.center .section-index::after {
            display: none;
        }

        /* ===== 福利类型卡片 ===== */
        .benefit-showcase {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 28px;
            align-items: stretch;
        }
        .main-benefit-card {
            background: linear-gradient(145deg, var(--bg-surface-3), var(--bg-surface-1));
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 38px 34px;
            overflow: hidden;
            position: relative;
            transition: box-shadow .3s ease, transform .3s ease;
        }
        .main-benefit-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .main-benefit-card .benefit-tag {
            display: inline-block;
            background: rgba(255, 90, 54, .14);
            color: var(--accent-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 18px;
        }
        .main-benefit-card h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 10px;
            letter-spacing: .5px;
        }
        .main-benefit-card p {
            color: var(--text-secondary);
            font-size: 15px;
        }
        .main-benefit-card .benefit-points {
            margin-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .benefit-points li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            background: rgba(255, 255, 255, .03);
            padding: 8px 14px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, .04);
        }
        .benefit-points li svg {
            width: 20px;
            height: 20px;
            stroke: var(--accent-secondary);
            flex-shrink: 0;
        }
        .benefit-stack {
            display: grid;
            gap: 18px;
        }
        .benefit-mini-card {
            background: var(--bg-surface-2);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 26px 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
        }
        .benefit-mini-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(255, 90, 54, .3);
        }
        .benefit-mini-card .bc-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(255, 90, 54, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .benefit-mini-card .bc-icon svg {
            width: 22px;
            height: 22px;
            stroke: var(--accent-primary);
        }
        .benefit-mini-card:nth-child(2) .bc-icon {
            background: rgba(25, 201, 176, .1);
        }
        .benefit-mini-card:nth-child(2) .bc-icon svg {
            stroke: var(--accent-secondary);
        }
        .benefit-mini-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 5px;
        }
        .benefit-mini-card p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== 福利详细列表 ===== */
        .benefit-grid-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }
        .benefit-item-card {
            background: var(--bg-surface-1);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            display: flex;
            align-items: flex-start;
            gap: 18px;
            transition: box-shadow .3s ease, border-color .3s ease, transform .3s ease;
        }
        .benefit-item-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 90, 54, .25);
            transform: translateY(-2px);
        }
        .benefit-item-card .bic-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255, 90, 54, .08);
            border: 1px solid rgba(255, 90, 54, .15);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .benefit-item-card .bic-icon svg {
            width: 23px;
            height: 23px;
            stroke: var(--accent-primary);
        }
        .benefit-item-card:nth-child(even) .bic-icon {
            background: rgba(25, 201, 176, .08);
            border-color: rgba(25, 201, 176, .15);
        }
        .benefit-item-card:nth-child(even) .bic-icon svg {
            stroke: var(--accent-secondary);
        }
        .benefit-item-card .bic-body {
            flex: 1;
        }
        .benefit-item-card .bic-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            margin-bottom: 6px;
        }
        .benefit-item-card h3 {
            font-size: 17px;
            font-weight: 700;
        }
        .benefit-item-card .bic-tag {
            font-size: 12px;
            background: rgba(255, 255, 255, .06);
            color: var(--text-secondary);
            padding: 2px 10px;
            border-radius: 999px;
            white-space: nowrap;
        }
        .benefit-item-card .bic-tag.hot {
            background: rgba(255, 90, 54, .14);
            color: var(--accent-primary);
        }
        .benefit-item-card p {
            font-size: 13.5px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            line-height: 1.65;
        }
        .benefit-item-card .bic-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }
        .benefit-item-card .bic-time {
            font-size: 12px;
            color: var(--text-muted);
            font-variant-numeric: tabular-nums;
        }
        .text-link-sm {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .text-link-sm:hover {
            color: #ff7557;
        }

        /* ===== 流程步骤 ===== */
        .steps-panel {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .step-card {
            background: var(--bg-surface-1);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            position: relative;
            text-align: left;
            transition: transform .3s ease, box-shadow .3s ease;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-card .step-num {
            font-size: 38px;
            font-weight: 900;
            line-height: 1;
            color: transparent;
            -webkit-text-stroke: 1.5px rgba(255, 90, 54, .55);
            margin-bottom: 14px;
            font-variant-numeric: tabular-nums;
            display: block;
        }
        .step-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 7px;
        }
        .step-card p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        .step-card .step-line {
            position: absolute;
            top: 47px;
            right: -20px;
            width: 20px;
            height: 1px;
            background: linear-gradient(to right, rgba(255, 90, 54, .4), transparent);
        }
        .step-card:last-child .step-line {
            display: none;
        }

        /* ===== 活动焦点区 ===== */
        .campaign-banner {
            background: linear-gradient(120deg, rgba(255, 90, 54, .1) 0%, rgba(10, 12, 17, .72) 55%), url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-lg);
            margin: 0 0 48px;
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }
        .campaign-inner {
            padding: 40px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }
        .campaign-copy .campaign-label {
            display: inline-block;
            color: var(--accent-warning);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            background: rgba(245, 196, 67, .12);
            border: 1px solid rgba(245, 196, 67, .28);
            padding: 3px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }
        .campaign-copy h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .campaign-copy p {
            color: var(--text-secondary);
            font-size: 14.5px;
            max-width: 520px;
            line-height: 1.7;
        }
        .campaign-count {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .campaign-count .time-block {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            text-align: center;
            min-width: 52px;
        }
        .campaign-count .time-block b {
            display: block;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
            font-variant-numeric: tabular-nums;
        }
        .campaign-count .time-block span {
            font-size: 11px;
            color: var(--text-muted);
        }
        .campaign-count .sep {
            font-size: 20px;
            font-weight: 300;
            color: var(--text-muted);
        }

        /* ===== 版本/权益表 ===== */
        .vip-pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 20px;
        }
        .vip-card {
            background: var(--bg-surface-1);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 34px 30px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }
        .vip-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .vip-card.featured {
            border: 1px solid rgba(255, 90, 54, .5);
            box-shadow: 0 0 0 1px rgba(255, 90, 54, .15), 0 16px 40px rgba(0, 0, 0, .36);
        }
        .vip-card.featured:hover {
            box-shadow: 0 0 0 1px rgba(255, 90, 54, .2), 0 26px 48px rgba(0, 0, 0, .4);
        }
        .vip-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent-primary);
            color: #0A0C11;
            font-size: 12px;
            font-weight: 800;
            letter-spacing: 1px;
            padding: 4px 18px;
            border-radius: 999px;
            white-space: nowrap;
        }
        .vip-card .vip-level {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 1px;
        }
        .vip-card h3 {
            font-size: 21px;
            font-weight: 800;
        }
        .vip-card .vip-desc {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.6;
            min-height: 44px;
        }
        .vip-card .vip-price {
            font-size: 40px;
            font-weight: 900;
            letter-spacing: -1px;
            color: var(--text-primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }
        .vip-card .vip-price small {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0;
            margin-left: 4px;
        }
        .vip-card .vip-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 6px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, .06);
            flex: 1;
        }
        .vip-card .vip-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .vip-card .vip-list li svg {
            width: 18px;
            height: 18px;
            stroke: var(--accent-secondary);
            flex-shrink: 0;
            margin-top: 3px;
        }
        .vip-card .btn {
            margin-top: 18px;
        }

        /* ===== 数据统计条 ===== */
        .proof-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px 20px;
            background: var(--bg-surface-1);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
        }
        .proof-stat {
            text-align: center;
            padding: 0;
            background: transparent;
            border: none;
        }
        .proof-stat .num {
            font-size: clamp(2rem, 3vw, 2.8rem);
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-primary);
            font-variant-numeric: tabular-nums;
            margin-bottom: 6px;
            display: flex;
            justify-content: center;
            gap: 2px;
        }
        .proof-stat .num .accent {
            color: var(--accent-primary);
        }
        .proof-stat .num .accent2 {
            color: var(--accent-secondary);
        }
        .proof-stat .label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            line-height: 1.55;
            max-width: 200px;
            margin: 0 auto;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 720px;
            border-top: 1px solid var(--border-subtle);
        }
        .faq-item {
            border-bottom: 1px solid var(--border-subtle);
            overflow: hidden;
        }
        .faq-item .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 22px 6px;
            cursor: pointer;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text-primary);
            transition: color .25s ease;
        }
        .faq-item .faq-q:hover {
            color: var(--accent-primary);
        }
        .faq-item .faq-q .faq-q-inner {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .faq-item .faq-q .faq-num {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-muted);
            font-variant-numeric: tabular-nums;
            transition: color .25s ease;
        }
        .faq-item.open .faq-num {
            color: var(--accent-primary);
        }
        .faq-item .faq-q .faq-text {
            font-size: 17px;
            font-weight: 600;
        }
        .faq-item .faq-q svg {
            width: 20px;
            height: 20px;
            color: var(--text-muted);
            transition: transform .3s ease, color .3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-q svg {
            transform: rotate(180deg);
            color: var(--accent-primary);
        }
        .faq-item .faq-answer {
            max-height: 0;
            transition: max-height .35s ease;
            overflow: hidden;
        }
        .faq-item .faq-answer-inner {
            padding: 0 24px 24px 36px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== CTA 区 ===== */
        .cta-zone {
            padding: 100px 0;
            background: linear-gradient(145deg, rgba(255, 90, 54, .14) 0%, rgba(10, 12, 17, .8) 55%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 75%;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .cta-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 14px;
            max-width: 620px;
            margin: 0 auto;
        }
        .cta-inner .cta-label {
            color: var(--accent-warning);
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            background: rgba(245, 196, 67, .1);
            border: 1px solid rgba(245, 196, 67, .2);
            padding: 4px 16px;
            border-radius: 999px;
        }
        .cta-inner h2 {
            font-size: clamp(2rem, 4.6vw, 3.2rem);
            font-weight: 900;
            line-height: 1.2;
        }
        .cta-inner p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-top: 4px;
        }
        .cta-inner .btn {
            margin-top: 18px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #080A0E;
            border-top: 1px solid var(--border-subtle);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.7fr 1fr 1fr;
            gap: 40px;
            padding: 50px 0 30px;
        }
        .footer-brand .brand {
            margin-bottom: 18px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 2;
            transition: color .2s ease;
        }
        .footer-col ul a:hover {
            color: var(--accent-primary);
        }
        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-tags span {
            font-size: 13px;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, .05);
            border: 1px solid var(--border-subtle);
            border-radius: 999px;
            padding: 4px 13px;
            transition: background-color .2s ease, color .2s ease;
        }
        .footer-tags span:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, .1);
        }
        .footer-tech {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-tech-item {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .footer-tech-item svg {
            width: 18px;
            height: 18px;
            color: var(--accent-secondary);
            flex-shrink: 0;
            opacity: .8;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding: 26px 0;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--text-primary);
        }

        /* ===== 浮动 CTA ===== */
        .floating-cta {
            position: fixed;
            bottom: 32px;
            right: 30px;
            z-index: 900;
            display: flex;
            flex-direction: column;
            gap: 12px;
            align-items: flex-end;
            transition: opacity .4s ease;
        }
        .floating-cta.hide {
            opacity: 0;
            pointer-events: none;
        }
        .floating-main {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-primary);
            color: #0A0C11;
            border: none;
            border-radius: 999px;
            padding: 13px 22px;
            font-size: 15px;
            font-weight: 800;
            box-shadow: 0 8px 24px rgba(255, 90, 54, .4);
            transition: background-color .2s ease, transform .2s ease, box-shadow .2s ease;
        }
        .floating-main:hover {
            background: #ff764e;
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(255, 90, 54, .5);
        }
        .floating-top-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-surface-2);
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background-color .2s ease, color .2s ease, transform .2s ease;
        }
        .floating-top-btn:hover {
            background: var(--bg-surface-3);
            color: var(--text-primary);
        }
        .floating-top-btn svg {
            width: 18px;
            height: 18px;
        }
        .float-only-mobile {
            display: none;
        }

        /* ===== 入场动效 ===== */
        .reveal {
            opacity: 0;
            transform: translateY(12px);
            transition: opacity .5s ease, transform .5s ease;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation: none !important;
                transition: none !important;
                scroll-behavior: auto !important;
            }
            .reveal {
                opacity: 1;
                transform: none;
            }
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }
            .header-actions .online-badge {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .benefit-showcase {
                grid-template-columns: 1fr;
            }
            .benefit-grid-list {
                grid-template-columns: 1fr;
            }
            .steps-panel {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .step-card .step-line {
                display: none;
            }
            .vip-pricing-grid {
                gap: 18px;
                grid-template-columns: repeat(3, 1fr);
            }
            .vip-card {
                padding: 28px 18px;
            }
            .proof-stats {
                grid-template-columns: repeat(2, 1fr);
                padding: 36px 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .header-actions .btn-sm {
                display: none;
            }
            .channel-hero {
                padding: 80px 0;
            }
            .benefit-grid-list {
                grid-template-columns: 1fr;
            }
            .vip-pricing-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .vip-card.featured {
                transform: scale(1.01);
                margin: 8px 0;
            }
            .vip-card.featured:hover {
                transform: scale(1.02);
            }
            .steps-panel {
                grid-template-columns: 1fr;
            }
            .campaign-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-brand .footer-desc {
                max-width: 100%;
            }
            .floating-cta {
                bottom: 24px;
                right: 18px;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 60px 0;
            }
            .channel-hero h1 {
                font-size: 1.9rem;
            }
            .brand-text {
                font-size: 17px;
            }
            .brand-text small {
                font-size: 11px;
            }
            .brand-mark {
                width: 36px;
                height: 36px;
            }
            .brand-mark svg {
                width: 34px;
                height: 34px;
            }
            .hero-meta-strip {
                flex-direction: column;
                gap: 8px;
            }
            .benefit-grid-list {
                grid-template-columns: 1fr;
            }
            .benefit-item-card {
                flex-direction: row;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                padding: 34px 0 24px;
            }
            .campaign-inner {
                padding: 28px 22px;
            }
            .campaign-count .time-block {
                min-width: 42px;
                padding: 4px 7px;
            }
            .campaign-count .time-block b {
                font-size: 17px;
            }
            .floating-main {
                font-size: 14px;
                padding: 11px 18px;
            }
            .float-only-mobile {
                display: inline-flex;
            }
            .proof-stats {
                grid-template-columns: 1fr 1fr;
                padding: 24px 20px;
                gap: 24px 10px;
            }
        }

/* roulang page: category3 */
:root{
  --bg:#0A0C11;
  --bg2:#11151D;
  --bg3:#161B24;
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.05);
  --text:#F2F4F8;
  --muted:#94A0B2;
  --muted-2:#6F7C8E;
  --accent:#FF5A36;
  --accent-2:#19C9B0;
  --yellow:#F5B841;
  --radius:16px;
  --radius-lg:20px;
  --shadow-sm:0 4px 16px rgba(0,0,0,.18);
  --shadow-lg:0 20px 40px rgba(0,0,0,.35);
  --container:1200px;
  --gap:24px;
  --font-stack:"PingFang SC","Microsoft YaHei UI","HarmonyOS Sans","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-stack);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:0;background:none;color:inherit;cursor:pointer}
svg{display:block}
::selection{background:rgba(255,90,54,.32);color:#fff}
.container{max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}
.section{position:relative;padding:96px 0}
.section-lg{padding:120px 0}

/* ========== Buttons ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:8px;font-weight:700;font-size:15px;
  letter-spacing:.02em;border:1px solid transparent;
  transition:background .25s ease,color .25s ease,transform .22s ease,box-shadow .22s ease;
}
.btn:focus-visible{outline:2px solid #fff;outline-offset:3px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(255,90,54,.22)}
.btn-primary:hover{background:#ff6b4d;transform:translateY(-2px) translateX(1px);box-shadow:0 12px 28px rgba(255,90,54,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:rgba(255,255,255,.22);color:#F2F4F8;background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.07);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:8px}
.btn-large{height:56px;padding:0 42px;font-size:16px;border-radius:12px}

/* ========== Header ========== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(10,12,17,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{
  background:rgba(10,12,17,.94);
  border-bottom-color:var(--line-soft);
  box-shadow:0 10px 30px rgba(0,0,0,.24);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:38px;height:38px;flex-shrink:0}
.brand-mark svg{width:100%;height:100%}
.brand-text{
  font-size:20px;font-weight:900;line-height:1.1;color:#fff;letter-spacing:.01em;
  display:inline-flex;align-items:baseline;gap:2px;
}
.brand-text small{font-size:12px;color:#FF5A36;font-weight:800;margin-left:3px;letter-spacing:.08em}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  padding:8px 15px;font-weight:700;font-size:15px;border-radius:8px;
  color:#b9c2ce;letter-spacing:.01em;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link.active{color:#FF5A36;background:rgba(255,90,54,.1)}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.online-badge{
  display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 12px;
  border-radius:999px;border:1px solid rgba(25,201,176,.3);
  background:rgba(25,201,176,.08);color:#d9faf4;font-size:12.5px;font-weight:600;
}
.online-badge i{width:7px;height:7px;border-radius:99px;background:#19C9B0;box-shadow:0 0 0 0 rgba(25,201,176,.55);animation:pulse 2s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(25,201,176,.5)}
  70%{box-shadow:0 0 0 7px rgba(25,201,176,0)}
  100%{box-shadow:0 0 0 0 rgba(25,201,176,0)}
}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px}

/* ========== Hero ========== */
.page-hero{
  position:relative;padding:164px 0 80px;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(10,12,17,.88) 0%,rgba(10,12,17,.68) 42%,var(--bg) 98%),
    url("/assets/images/backpic/back-1.png") center / cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 78% 28%,rgba(255,90,54,.2),transparent 38%);
  pointer-events:none;
}
.page-hero-inner{position:relative;max-width:980px}
.hero-chip{
  display:inline-flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;letter-spacing:.06em;font-weight:700;
  color:#b7bfcc;
  background:rgba(17,21,29,.72);border:1px solid var(--line);
  border-radius:999px;padding:7px 16px;margin-bottom:24px;
}
.hero-chip .dot{width:7px;height:7px;border-radius:99px;background:#FF5A36;position:relative}
.hero-chip .dot::after{content:"";position:absolute;inset:-4px;border:1px solid rgba(255,90,54,.55);border-radius:99px;animation:ripple 2s infinite}
@keyframes ripple{0%{transform:scale(.6);opacity:.9}75%,100%{transform:scale(1.7);opacity:0}}
.page-hero h1{
  font-size:clamp(2.1rem,5.2vw,4rem);font-weight:900;line-height:1.12;
  letter-spacing:-.015em;color:#fff;
  margin-bottom:22px;
}
.page-hero h1 .brand-accent{color:#FF5A36}
.hero-sub{
  font-size:clamp(1rem,1.6vw,1.2rem);line-height:1.8;
  color:#C6CDD8;max-width:660px;margin-bottom:34px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:42px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:0;align-items:center;
  border-top:1px solid var(--line-soft);padding-top:26px;
}
.hero-stat{padding:0 32px;border-left:1px solid var(--line-soft)}
.hero-stat:first-child{padding-left:0;border-left:0}
.hero-stat strong{
  font-size:clamp(1.3rem,2.4vw,1.75rem);font-weight:900;color:#fff;
  font-variant-numeric:tabular-nums;display:block;line-height:1.2;
}
.hero-stat strong i{font-style:normal;color:#FF5A36;font-size:.72em;margin-left:2px}
.hero-stat span{font-size:13px;color:var(--muted);display:block;margin-top:4px}

/* ========== Section Title ========== */
.sect-head{display:flex;align-items:flex-start;gap:18px;margin-bottom:42px;max-width:900px}
.sect-num{
  font-size:14px;font-weight:800;letter-spacing:.08em;color:var(--accent-2);
  border:1px solid rgba(25,201,176,.35);background:rgba(25,201,176,.06);
  border-radius:999px;padding:5px 13px;margin-top:8px;white-space:nowrap;
}
.sect-head-content h2{
  font-size:clamp(1.7rem,3.4vw,2.7rem);font-weight:900;line-height:1.2;
  color:#fff;letter-spacing:-.01em;
}
.sect-head-content .sect-lead{color:var(--muted);margin-top:8px;font-size:15.5px;line-height:1.75;max-width:640px}

/* ========== Focus ========== */
.focus-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(320px,.85fr);gap:28px;align-items:stretch}
.focus-main{
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  background:var(--bg2);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.focus-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(255,255,255,.18)}
.focus-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0b0e13}
.focus-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.focus-main:hover .focus-media img{transform:scale(1.03)}
.focus-media::after{content:"";position:absolute;inset:auto 0 0 0;height:45%;background:linear-gradient(180deg,transparent,rgba(17,21,29,.95))}
.focus-top-tag{
  position:absolute;left:20px;top:18px;z-index:2;
  background:rgba(10,12,17,.78);border:1px solid rgba(255,255,255,.14);
  color:#fff;font-size:13px;font-weight:800;padding:5px 13px;border-radius:999px;
  backdrop-filter:blur(6px);letter-spacing:.05em;
}
.focus-body{padding:22px 24px 24px}
.focus-meta-row{display:flex;flex-wrap:wrap;gap:8px 18px;color:var(--muted);font-size:13px;margin-bottom:14px}
.focus-meta-row b{color:#dfe5ec;font-weight:600}
.focus-body h3{font-size:clamp(1.3rem,2.2vw,1.78rem);font-weight:900;color:#fff;line-height:1.35;margin-bottom:12px}
.focus-body p{color:#aab3c0;line-height:1.85;font-size:15px;margin-bottom:20px}
.focus-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:auto}
.focus-side{display:flex;flex-direction:column;gap:12px}
.side-match{
  background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;display:flex;flex-direction:column;justify-content:space-between;
  transition:background .2s ease,transform .2s ease,border-color .2s ease;
}
.side-match:hover{background:var(--bg3);transform:translateY(-2px);border-color:rgba(255,90,54,.32)}
.side-match-kicker{display:flex;align-items:center;gap:10px;justify-content:space-between;font-size:12.5px;color:var(--muted);margin-bottom:10px}
.role-tag{font-size:12px;padding:3px 10px;border-radius:99px;background:rgba(255,90,54,.12);color:#ff8b70;font-weight:700}
.side-match h4{font-size:16.5px;font-weight:800;color:#fff;margin-bottom:8px;line-height:1.45}
.side-match-meta{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted)}
.side-match-time{font-variant-numeric:tabular-nums;color:#19C9B0;font-weight:700}

/* ========== Schedule ========== */
.schedule-wrap{background:var(--bg2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.schedule-duo{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(300px,.75fr);gap:40px}
.schedule-panel h3,.live-panel h3{font-size:19px;font-weight:900;color:#fff;display:flex;align-items:center;margin-bottom:22px}
.schedule-panel h3::before,.live-panel h3::before{content:"";width:6px;height:18px;border-radius:4px;background:var(--accent);margin-right:12px}
.match-list{display:flex;flex-direction:column}
.match-item{
  display:flex;align-items:center;gap:16px;padding:16px 4px;
  border-bottom:1px solid var(--line-soft);transition:background .2s ease;
}
.match-item:last-child{border-bottom:0}
.match-item:hover .match-name{color:#fff}
.match-date{flex:0 0 78px;text-align:center;background:rgba(255,255,255,.04);border:1px solid var(--line-soft);border-radius:10px;padding:7px 4px}
.match-date strong{display:block;font-size:14.5px;color:#fff;line-height:1.2;font-variant-numeric:tabular-nums}
.match-date small{font-size:11.5px;color:var(--muted-2)}
.match-evs{display:flex;align-items:center;gap:12px;flex:1}
.match-team{font-weight:700;color:#e3e7ed;font-size:14.5px;line-height:1.4;max-width:170px}
.vs-badge{font-size:11px;font-weight:900;color:#FF5A36;border:1px solid rgba(255,90,54,.4);padding:2px 7px;border-radius:4px}
.match-status{flex:0 0 66px;text-align:right;font-size:13px;font-weight:700}
.match-status.upcoming{color:#19C9B0}
.match-status.live{color:#FF5A36;display:inline-flex;align-items:center;gap:7px}
.match-status.live i{width:6px;height:6px;border-radius:99px;background:#FF5A36;animation:blink 1.2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
.match-status.over{color:var(--muted-2);font-weight:500}
.live-list{display:flex;flex-direction:column;gap:14px}
.live-card{
  display:grid;grid-template-columns:110px 1fr;gap:14px;align-items:center;
  background:var(--bg3);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .2s ease,border-color .2s ease;
}
.live-card:hover{transform:translateY(-2px);border-color:rgba(25,201,176,.25)}
.live-cover{height:84px;background:var(--bg)}
.live-cover img{width:100%;height:100%;object-fit:cover}
.live-card-body{padding-right:12px;min-width:0}
.live-card-body small{display:block;font-size:12px;color:var(--muted-2);margin-bottom:3px}
.live-card-body h4{font-size:15px;font-weight:800;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.live-card-body .live-line{display:flex;justify-content:space-between;align-items:center;margin-top:7px;font-size:13px}
.live-views{color:#FF5A36;font-weight:700;font-variant-numeric:tabular-nums}
.live-entry{color:var(--muted-2);font-weight:600}

/* ========== Feature split ========== */
.feature-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.02fr);gap:64px;align-items:center}
.feature-copy .eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--accent-2);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:16px}
.feature-copy h2{font-size:clamp(1.8rem,3.2vw,2.6rem);line-height:1.25;color:#fff;font-weight:900;margin-bottom:20px}
.feature-copy > p{color:#a7b0be;font-size:15.5px;line-height:1.9;margin-bottom:28px;max-width:520px}
.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding-left:0}
.feature-item{list-style:none;background:rgba(255,255,255,.03);border:1px solid var(--line-soft);border-radius:14px;padding:16px 17px;transition:border-color .2s ease;position:relative}
.feature-item:hover{border-color:rgba(255,90,54,.28)}
.feature-item svg{width:22px;height:22px;stroke:#FF5A36;margin-bottom:8px}
.feature-item h4{font-size:15.5px;font-weight:800;color:#fff;margin-bottom:6px}
.feature-item p{font-size:13.5px;color:var(--muted);line-height:1.65}
.feature-frame{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line-soft);background:#141921;box-shadow:var(--shadow-lg)}
.feature-frame img{width:100%;aspect-ratio:4/3.35;object-fit:cover}
.feature-window-info{
  position:absolute;left:18px;right:18px;bottom:18px;
  background:rgba(10,12,17,.8);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.14);border-radius:12px;
  padding:14px 18px;display:flex;justify-content:space-between;align-items:center;
}
.window-left span{display:block;font-size:12px;color:var(--muted);letter-spacing:.05em}
.window-left strong{font-size:15px;color:#fff}
.window-live{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#FF5A36;font-weight:800}
.window-live i{width:7px;height:7px;border-radius:50%;background:#FF5A36}

/* ========== Steps ========== */
.entry-panel{
  background:linear-gradient(165deg,rgba(255,90,54,.08),transparent 42%),var(--bg2);
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px}
.step-chip{
  background:var(--bg3);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px 26px;position:relative;overflow:hidden;min-height:214px;
  transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.step-chip:hover{transform:translateY(-4px);border-color:rgba(255,90,54,.4);background:linear-gradient(180deg,rgba(255,255,255,.035),transparent),#161b24}
.step-num{display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;color:#0A0C11;background:var(--accent);font-weight:900;font-size:18px;margin-bottom:20px;box-shadow:0 8px 20px rgba(255,90,54,.24)}
.step-chip:nth-child(2) .step-num{background:var(--accent-2)}
.step-chip:nth-child(3) .step-num{background:var(--yellow)}
.step-chip:nth-child(4) .step-num{background:#8a8ff2}
.step-chip h3{font-size:16px;font-weight:900;color:#fff;margin-bottom:10px;line-height:1.45}
.step-chip p{font-size:13.5px;color:var(--muted);line-height:1.75}

/* ========== Metrics ========== */
.metrics-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:28px;
  background:var(--bg2);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:34px 20px;
}
.metric-cell{text-align:center;padding:8px 14px;position:relative}
.metric-cell + .metric-cell::before{
  content:"";position:absolute;left:0;top:18%;bottom:18%;width:1px;background:var(--line-soft);
}
.metric-cell .metric-text{font-size:clamp(1.7rem,3vw,2.5rem);font-weight:900;color:#fff;line-height:1.1;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.metric-cell .metric-text em{font-style:normal;color:#FF5A36}
.metric-cell .metric-label{font-size:13.5px;color:var(--muted);margin-top:10px}

/* ========== FAQ ========== */
.faq-panel{max-width:900px}
.faq-card{
  background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease;
}
.faq-card[open]{border-color:rgba(255,90,54,.25);background:var(--bg3)}
.faq-card summary{
  list-style:none;display:flex;align-items:center;gap:18px;cursor:pointer;
  padding:21px 24px;user-select:none;
}
.faq-card summary::-webkit-details-marker{display:none}
.faq-card summary:focus-visible{outline:2px solid #fff;outline-offset:-2px;border-radius:var(--radius)}
.faq-no{font-size:14px;font-weight:900;color:var(--muted-2);flex:0 0 auto;font-variant-numeric:tabular-nums}
.faq-card[open] .faq-no{color:#FF5A36}
.faq-q{flex:1;font-weight:800;font-size:16.5px;color:#eef1f5}
.faq-icon{
  width:28px;height:28px;flex:0 0 auto;position:relative;border-radius:50%;
  border:1px solid var(--line);color:#fff;transition:transform .25s ease,border-color .25s ease,color .25s ease;
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:50%;background:currentColor;border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-card[open] .faq-icon{transform:rotate(45deg);color:#FF5A36;border-color:#FF5A36}
.faq-answer{
  padding:0 24px 24px 66px;color:#a5aebe;line-height:1.85;font-size:15px;
}
.faq-answer b{color:#fff;font-weight:700}
.faq-answer a{color:#19C9B0;font-weight:700}
.faq-answer a:hover{text-decoration:underline}

/* ========== CTA ========== */
.cta-panel{
  position:relative;padding:104px 0;overflow:hidden;
  background:
    linear-gradient(180deg,var(--bg) 0%,rgba(10,12,17,.7) 55%,var(--bg) 100%),
    radial-gradient(circle at 50% 50%,rgba(255,90,54,.22),transparent 55%),
    url("/assets/images/backpic/back-2.png") center / cover no-repeat;
}
.cta-panel::after{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,90,54,.6),transparent)}
.cta-inner{position:relative;text-align:center;max-width:760px;margin:0 auto}
.cta-inner h2{font-size:clamp(1.9rem,4vw,3.1rem);line-height:1.2;font-weight:900;letter-spacing:-.015em;color:#fff;margin-bottom:18px}
.cta-inner p{color:#bcc4d0;font-size:17px;line-height:1.85;margin-bottom:34px}
.cta-inner .btn-row{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.cta-note{margin-top:24px;font-size:13px;color:var(--muted-2)}

/* ========== Footer ========== */
.site-footer{background:#080A0E;border-top:1px solid var(--line-soft);padding:66px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.1fr;gap:52px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:18px}
.footer-desc{font-size:14px;line-height:1.9;color:var(--muted);max-width:340px;margin-top:16px}
.footer-col h4{color:#fff;font-size:15.5px;font-weight:800;margin-bottom:22px;letter-spacing:.04em}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:13px}
.footer-col ul a{font-size:14px;color:#a4aebb;transition:color .2s ease;display:inline-flex;align-items:center;gap:8px}
.footer-col ul a::before{content:"";width:5px;height:5px;border-radius:2px;background:#293040;transition:background .2s ease}
.footer-col ul a:hover{color:#fff}
.footer-col ul a:hover::before{background:#FF5A36}
.footer-tags{display:flex;flex-wrap:wrap;gap:10px}
.footer-tags span{
  font-size:12.5px;color:#aab2c0;padding:6px 13px;border-radius:99px;
  background:rgba(255,255,255,.035);border:1px solid var(--line-soft);
  transition:border-color .2s ease,color .2s ease;
}
.footer-tags span:hover{border-color:rgba(255,90,54,.35);color:#fff}
.footer-tech{display:flex;flex-direction:column;gap:14px;}
.footer-tech-item{display:flex;align-items:center;gap:11px;font-size:13.5px;color:#a4aebb;line-height:1.5;word-break:break-all}
.footer-tech-item svg{width:18px;height:18px;flex-shrink:0;color:#19C9B0}
.footer-tech-item:hover{color:#fff}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line-soft);padding:24px 0 34px;
}
.footer-bottom p{font-size:13px;color:var(--muted-2)}

/* ========== Float cta ========== */
.float-cta{
  position:fixed;right:22px;bottom:22px;z-index:90;
  display:inline-flex;align-items:center;gap:10px;
  height:50px;padding:0 22px;border-radius:999px;background:var(--accent);color:#fff;
  font-size:15px;font-weight:800;box-shadow:0 12px 28px rgba(255,90,54,.35);
  transition:transform .2s ease,background .2s ease,opacity .3s ease,box-shadow .2s ease;
}
.float-cta:hover{background:#ff6b4d;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,90,54,.4)}
.float-cta svg{width:19px;height:19px}
.float-cta.hide{opacity:0;pointer-events:none}

/* ========== Reveal ========== */
[data-reveal].is-reveal-init{opacity:0;transform:translateY(14px)}
[data-reveal].is-reveal-show{opacity:1;transform:none;transition:opacity .5s ease,transform .5s ease}
[data-reveal="delay-1"].is-reveal-show{transition-delay:.08s}
[data-reveal="delay-2"].is-reveal-show{transition-delay:.16s}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
  [data-reveal].is-reveal-init{opacity:1;transform:none}
}

/* ========== Responsive ========== */
@media (max-width:1100px){
  .section{padding:80px 0}
  .focus-grid{grid-template-columns:1fr}
  .schedule-duo,.feature-split{grid-template-columns:1fr;gap:42px}
  .steps-grid{grid-template-columns:1fr 1fr}
  .metrics-row{grid-template-columns:repeat(2,1fr)}
  .metric-cell:nth-child(3)::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:42px}
}
@media (max-width:900px){
  .main-nav{display:none}
  .nav-toggle{
    display:flex;order:5;
  }
  .header-inner{flex-wrap:nowrap}
  .header-actions .online-badge{display:none}
  .page-hero{padding:140px 0 64px}
  .hero-stat{padding:0 22px}
  .faq-answer{padding-left:24px}
  .mobile-menu-open .main-nav{
    display:flex;flex-direction:column;align-items:stretch;gap:6px;
    position:fixed;top:72px;left:0;right:0;background:#0d1017;
    border-bottom:1px solid var(--line);padding:16px 20px 24px;z-index:99;
  }
  .mobile-menu-open .nav-link{font-size:18px;padding:14px 16px}
  .mobile-menu-open .nav-link.active{background:rgba(255,90,54,.1)}
}
@media (max-width:620px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:64px 0}
  .page-hero{padding:132px 0 56px}
  .page-hero .brand-accent br{display:none}
  .hero-stats{flex-direction:column;align-items:flex-start;gap:0}
  .hero-stat{padding:16px 0;border-top:1px solid var(--line-soft);border-left:0!important;width:100%}
  .hero-stat:first-child{border-top:0}
  .sect-head{flex-direction:column;gap:10px;margin-bottom:30px}
  .sect-num{align-self:flex-start}
  .focus-body{padding:20px}
  .focus-media,.feature-media{aspect-ratio:4/3}
  .match-item{flex-wrap:wrap;gap:10px}
  .match-date{flex:0 0 60px}
  .match-evs{flex:1 1 100%;order:3;justify-content:space-between}
  .steps-grid{grid-template-columns:1fr}
  .metrics-row{grid-template-columns:1fr}
  .metric-cell + .metric-cell::before{display:none}
  .feature-list{grid-template-columns:1fr}
  .feature-split{gap:30px}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .footer-col h4{margin-bottom:16px}
  .cta-panel{padding:72px 0}
  .float-cta{
    width:52px;height:52px;padding:0;justify-content:center;border-radius:50%;
    right:16px;bottom:16px;
  }
  .float-cta span{display:none}
  .float-cta svg{width:22px;height:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left}
}

/* roulang page: category4 */
:root{
  --bg:#0A0C11;
  --surface:#11151D;
  --surface-2:#161B24;
  --surface-3:#1B212C;
  --line:rgba(242,244,248,0.09);
  --line-soft:rgba(242,244,248,0.06);
  --text:#F2F4F8;
  --muted:#94A0B2;
  --primary:#FF5A36;
  --primary-soft:#FF8461;
  --accent:#19C9B0;
  --accent-soft:#44D8C1;
  --warning:#FFD550;
  --radius-sm:8px;
  --radius:16px;
  --radius-lg:20px;
  --shadow-card:0 4px 16px rgba(0,0,0,0.18);
  --shadow-hover:0 20px 40px rgba(0,0,0,0.35);
  --font-stack:PingFang SC,Microsoft YaHei UI,HarmonyOS Sans,Noto Sans CJK SC,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-stack);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.menu-lock{overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;border:0;background:none;cursor:pointer}
ul{list-style:none}
::selection{background:var(--primary);color:#fff}
.container{width:min(1180px,92%);margin-inline:auto}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1!important;transform:none!important}
  html{scroll-behavior:auto}
}

/* ===== Header ===== */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:1000;
  transition:background .3s,box-shadow .3s,border-color .3s;
  background:rgba(10,12,17,0.42);
}
.site-header.has-shadow{
  background:rgba(10,12,17,0.9);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,0.2);
}
.header-inner{
  display:flex;align-items:center;
  height:76px;gap:18px;
}
.brand{
  display:inline-flex;align-items:center;gap:11px;
  flex-shrink:0;
}
.brand-mark{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  filter:drop-shadow(0 0 14px rgba(255,90,54,.28));
}
.brand-text{
  font-size:1.22rem;font-weight:900;letter-spacing:.02em;
  color:var(--text);white-space:nowrap;
}
.brand-text small{
  display:inline-block;margin-left:5px;
  font-size:11px;font-weight:800;letter-spacing:.1em;
  color:var(--primary);border:1px solid rgba(255,90,54,.45);
  padding:1px 7px;border-radius:999px;vertical-align:3px;
}
.main-nav{
  display:flex;align-items:center;gap:4px;
  margin-inline:auto;
}
.drawer-footer{display:none}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:999px;
  font-weight:600;font-size:15px;color:var(--muted);
  transition:color .2s,background .2s,transform .2s;
}
.nav-link:hover{color:var(--text);background:rgba(242,244,248,.05)}
.nav-link.active{color:var(--primary);background:rgba(255,90,54,.1)}
.nav-link.active::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary)}
.header-actions{
  display:flex;align-items:center;gap:10px;
  flex-shrink:0;
}
.online-badge{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:999px;
  padding:6px 13px;
  color:var(--text);font-size:13px;font-weight:600;
}
.online-badge i{
  width:7px;height:7px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 0 rgba(25,201,176,.55);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(25,201,176,.55)}
  70%{box-shadow:0 0 0 7px rgba(25,201,176,0)}
  100%{box-shadow:0 0 0 0 rgba(25,201,176,0)}
}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;flex-shrink:0;
  color:var(--text);align-items:center;justify-content:center;
  border:1px solid var(--line);background:rgba(242,244,248,.04);
}
.nav-toggle svg{width:22px;height:22px}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);
  font-weight:700;font-size:15px;
  padding:12px 22px;
  transition:background .2s,box-shadow .2s,transform .2s,border-color .2s;
  white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:15px 30px;font-size:17px}
.btn-primary{
  background:var(--primary);color:#fff;
  box-shadow:0 10px 24px rgba(255,90,54,.28);
}
.btn-primary:hover{
  background:var(--primary-soft);
  transform:translate(-1px,-2px);
  box-shadow:0 16px 32px rgba(255,90,54,.38);
}
.btn-ghost{
  background:rgba(242,244,248,.04);
  border:1px solid rgba(242,244,248,.16);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(242,244,248,.4);
  background:rgba(242,244,248,.09);
  transform:translateY(-2px);
}
.btn-outline{
  background:transparent;
  border:1px solid rgba(255,255,255,.24);
  color:var(--text);
}
.btn-outline:hover{
  border-color:var(--primary);
  color:var(--primary-soft);
  background:rgba(255,90,54,.07);
  transform:translateY(-2px);
}
.btn-block{width:100%}

/* ===== Page Hero ===== */
.page-hero{
  position:relative;
  background:url('/assets/images/backpic/back-3.png') no-repeat center top / cover;
  padding:184px 0 96px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero .hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg, rgba(10,12,17,.96) 0%, rgba(10,12,17,.8) 45%, rgba(10,12,17,.48) 100%),
    linear-gradient(180deg, rgba(10,12,17,.45) 0%, rgba(10,12,17,.1) 100%);
}
.page-hero-inner{position:relative;max-width:1120px}
.hero-crumb{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--accent);font-weight:700;font-size:14px;
  letter-spacing:.04em;margin-bottom:22px;
}
.hero-crumb::before{content:"";width:24px;height:2px;background:var(--accent);border-radius:2px}
.page-hero h1{
  font-size:clamp(2.4rem,6vw,4.5rem);
  line-height:1.08;font-weight:900;
  letter-spacing:-.02em;
  margin-bottom:26px;
}
.page-hero h1 .hero-accent{color:var(--primary)}
.hero-lead{
  max-width:660px;
  font-size:clamp(1.05rem,2vw,1.25rem);
  line-height:1.85;
  color:#C6CFDA;
  margin-bottom:34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:42px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:9px 26px;
  padding-top:28px;border-top:1px solid var(--line);
  color:var(--muted);font-size:14px;
}
.hero-meta span{
  display:inline-flex;align-items:center;gap:8px;
}
.hero-meta i{
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 10px rgba(25,201,176,.8);
}

/* ===== Sections ===== */
.section-block{padding:110px 0}
.section-block.tint{background:linear-gradient(180deg,var(--bg) 0%,var(--surface) 100%)}
.section-block.surface{background:var(--surface-2);border-block:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:52px}
.sec-eyebrow{
  display:flex;align-items:center;gap:10px;
  color:var(--primary);font-weight:800;
  font-size:14px;letter-spacing:.1em;
  margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.sec-eyebrow .sec-num{font-family:Georgia,serif;font-size:16px;color:var(--accent)}
.sec-eyebrow::after{content:"";height:1px;width:40px;background:rgba(242,244,248,.2)}
.sec-head h2{
  font-size:clamp(1.9rem,4vw,3rem);
  letter-spacing:-.02em;line-height:1.2;
  font-weight:900;
  margin-bottom:16px;
}
.sec-desc{
  font-size:16px;color:var(--muted);
  max-width:680px;
  margin-top:10px;
}

/* ===== Schedule Cards ===== */
.schedule-grid{
  display:grid;grid-template-columns:1fr 1fr;
  gap:24px;
}
.schedule-card{
  display:grid;grid-template-columns:190px minmax(0,1fr);
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;min-height:230px;
  transition:transform .25s,box-shadow .25s,border-color .25s;
  box-shadow:var(--shadow-card);
}
.schedule-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(242,244,248,.16);
}
.sc-media{
  position:relative;min-height:220px;overflow:hidden;
  background:var(--surface-2);
}
.sc-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s;
}
.schedule-card:hover .sc-media img{transform:scale(1.045)}
.sc-content{
  display:flex;flex-direction:column;
  padding:25px 22px 22px;
  min-width:0;
}
.sc-tags{
  display:flex;flex-wrap:wrap;gap:8px;
  margin-bottom:13px;
}
.tag{
  display:inline-flex;align-items:center;
  background:rgba(242,244,248,.06);
  color:#C6CFDA;font-size:12px;font-weight:700;
  border-radius:999px;padding:4px 11px;
}
.tag.orange{background:rgba(255,90,54,.13);color:var(--primary-soft)}
.tag.cyan{background:rgba(25,201,176,.12);color:var(--accent-soft)}
.sc-title{
  font-size:1.18rem;font-weight:800;
  line-height:1.4;margin-bottom:9px;
}
.sc-desc{
  font-size:14px;color:var(--muted);
  margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.sc-meta{
  display:flex;flex-wrap:wrap;gap:8px 16px;
  font-size:13px;color:var(--muted);
  margin-bottom:20px;
  font-variant-numeric:tabular-nums;
}
.sc-bot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;gap:12px;
}
.sc-link{
  color:var(--text);font-weight:700;
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;
}
.sc-link svg{width:15px;height:15px;transition:transform .2s}
.sc-link:hover svg{transform:translateX(4px)}

/* ===== Hot Index ===== */
.hot-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.hot-card{
  position:relative;
  display:flex;align-items:flex-end;
  min-height:305px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  padding:26px;
}
.hot-card::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,12,17,0) 18%,rgba(10,12,17,.25) 48%,rgba(10,12,17,.94) 100%);
  z-index:2;
  transition:background .3s;
}
.hot-card-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  transform:scale(1.01);
  transition:transform .5s;
}
.hot-card:hover .hot-card-bg{transform:scale(1.07)}
.hot-card-content{position:relative;z-index:3}
.hot-top{
  position:absolute;top:20px;left:22px;right:22px;z-index:4;
  display:flex;justify-content:space-between;align-items:center;
}
.rank-num{
  font-family:Georgia,serif;font-size:2rem;font-weight:700;
  color:rgba(242,244,248,.85);
  line-height:1;
  text-shadow:0 2px 10px rgba(0,0,0,.4);
}
.hot-status{
  background:rgba(10,12,17,.55);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  border:1px solid rgba(242,244,248,.22);
  color:#fff;
  border-radius:999px;
  padding:4px 12px;
  font-size:12px;font-weight:700;
}
.hot-status.live{
  color:#0B1412;background:var(--accent);
  border-color:var(--accent);
}
.hot-card-content h3{
  font-size:1.35rem;font-weight:900;
  letter-spacing:-.01em;
  margin-bottom:7px;
}
.hot-card-content p{
  max-width:80%;
  font-size:14px;color:#CDD4DE;
  margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.hot-card-content a{
  display:inline-flex;align-items:center;gap:5px;
  font-size:14px;font-weight:700;
  color:var(--primary-soft);
}

/* ===== Feature ===== */
.feature-grid{
  display:grid;grid-template-columns:1.06fr .94fr;gap:24px;
}
.feature-main{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  padding:44px;
  min-height:420px;
  border:1px solid var(--line);
  background:var(--surface);
}
.feature-main-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') no-repeat center/cover;
}
.feature-main-mask{
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(10,12,17,.96) 18%,rgba(10,12,17,.78) 55%,rgba(10,12,17,.45));
}
.feature-main-inner{position:relative;z-index:2;max-width:520px}
.feature-symbol{
  width:50px;height:50px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);
  color:#fff;box-shadow:0 12px 30px rgba(255,90,54,.35);
  margin-bottom:28px;
}
.feature-symbol svg{width:26px;height:26px}
.feature-main h3{
  font-size:clamp(1.5rem,2.6vw,2.2rem);
  font-weight:900;line-height:1.3;
  margin-bottom:16px;
}
.feature-main p{
  color:#C6CFDA;font-size:15px;line-height:1.9;
}
.feature-note{
  margin-top:26px;display:inline-flex;align-items:center;gap:9px;
  background:rgba(25,201,176,.1);
  color:var(--accent-soft);
  border:1px solid rgba(25,201,176,.22);
  border-radius:999px;
  padding:7px 15px;
  font-size:13px;font-weight:700;
}
.feature-side{
  display:grid;grid-template-rows:1fr 1fr;gap:24px;
}
.feature-mini{
  border-radius:var(--radius-lg);
  border:1px solid var(--line-soft);
  background:var(--surface-2);
  padding:30px;
  display:flex;flex-direction:column;justify-content:center;
  transition:transform .25s,border-color .25s;
}
.feature-mini:hover{transform:translateY(-4px);border-color:rgba(242,244,248,.18)}
.feature-mini-head{
  display:flex;align-items:center;gap:14px;
  margin-bottom:10px;
}
.feature-mini-head .fi{
  width:40px;height:40px;border-radius:11px;
  background:rgba(25,201,176,.1);
  color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.feature-mini-head .fi.orange{background:rgba(255,90,54,.12);color:var(--primary-soft)}
.feature-mini-head .fi svg{width:21px;height:21px}
.feature-mini h3{font-size:1.15rem;font-weight:800}
.feature-mini p{color:var(--muted);font-size:14px;line-height:1.8}

/* ===== Steps ===== */
.flow-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.step-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  padding:30px 24px 26px;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.step-card:hover{
  transform:translateY(-5px);
  border-color:rgba(255,90,54,.28);
  box-shadow:var(--shadow-hover);
}
.step-num{
  font-family:Georgia,serif;
  font-size:2.1rem;font-weight:700;color:var(--primary);
  line-height:1;margin-bottom:20px;
  display:block;
  font-variant-numeric:tabular-nums;
}
.step-card h3{font-size:1.08rem;font-weight:800;margin-bottom:10px}
.step-card p{font-size:14px;color:var(--muted);line-height:1.8}

/* ===== FAQ ===== */
.faq-list{max-width:920px}
.faq-item{
  border:1px solid var(--line-soft);
  background:var(--surface);
  border-radius:var(--radius);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s,box-shadow .25s;
}
.faq-item.active{border-color:rgba(255,90,54,.3);box-shadow:0 10px 30px rgba(0,0,0,.15)}
.faq-item .faq-index{
  font-family:Georgia,serif;color:var(--muted);
  font-weight:700;width:40px;flex-shrink:0;
  font-variant-numeric:tabular-nums;
  transition:color .2s;
}
.faq-item.active .faq-index{color:var(--primary)}
.faq-toggle{
  display:flex;align-items:center;gap:14px;
  text-align:left;padding:18px 20px;
  color:var(--text);width:100%;
  font-size:16px;font-weight:700;
}
.faq-arrow{
  width:28px;height:28px;border-radius:50%;
  background:rgba(242,244,248,.06);
  color:var(--muted);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;margin-left:auto;
  transition:transform .3s,color .2s,background .2s;
}
.faq-item.active .faq-arrow{
  transform:rotate(180deg);
  background:rgba(255,90,54,.16);
  color:var(--primary-soft);
}
.faq-arrow svg{width:16px;height:16px}
.faq-answer{
  max-height:0;overflow:hidden;
  transition:max-height .32s ease;
}
.faq-answer-inner{
  padding:0 20px 22px 74px;
  font-size:15px;color:var(--muted);
  line-height:1.9;
}

/* ===== CTA ===== */
.cta-section{
  position:relative;
  background:
    radial-gradient(circle at 32% 120%,rgba(255,90,54,.2),transparent 42%),
    radial-gradient(circle at 78% 20%,rgba(25,201,176,.08),transparent 38%),
    var(--surface-2);
  border-top:1px solid var(--line);
}
.cta-inner{
  display:flex;flex-direction:column;align-items:center;
  text-align:center;
  padding:96px 0 108px;
}
.cta-inner h2{
  font-size:clamp(1.9rem,4vw,3.1rem);
  font-weight:900;
  letter-spacing:-.02em;
  max-width:760px;
  line-height:1.25;
  margin-bottom:18px;
}
.cta-inner p{
  color:var(--muted);
  max-width:560px;
  margin-bottom:34px;
}

/* ===== Footer ===== */
.site-footer{
  background:#0b0e14;
  border-top:1px solid rgba(242,244,248,.08);
  padding:66px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.45fr .85fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-desc{
  color:var(--muted);
  font-size:14px;line-height:1.9;
  max-width:88%;
  margin-top:8px;
}
.footer-col h4{
  color:#E6EAEF;font-size:14px;font-weight:800;
  letter-spacing:.08em;
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul a{
  color:var(--muted);
  font-size:15px;
  transition:color .2s,padding-left .2s;
}
.footer-col ul a:hover{
  color:var(--primary-soft);
  padding-left:5px;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:9px}
.footer-tags span{
  font-size:13px;color:var(--muted);
  border:1px solid var(--line);
  background:rgba(242,244,248,.03);
  border-radius:999px;
  padding:5px 12px;
}
.footer-tech{display:flex;flex-direction:column;gap:13px}
.footer-tech-item{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--muted);font-size:13px;
  font-variant-numeric:tabular-nums;
}
.footer-tech-item svg{width:17px;height:17px;color:var(--accent);flex-shrink:0}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;
  gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(242,244,248,.07);
  padding:22px 0;
  color:var(--muted);
  font-size:14px;
}
.footer-bottom .footer-lan{font-size:13px}

/* ===== Float ===== */
.float-box{
  position:fixed;right:22px;bottom:22px;z-index:800;
  display:flex;align-items:center;gap:10px;
}
.float-go{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#fff;
  font-weight:800;font-size:15px;
  border-radius:999px;
  padding:12px 20px;
  box-shadow:0 14px 32px rgba(255,90,54,.35);
  transition:background .2s,transform .2s,box-shadow .2s;
}
.float-go:hover{
  background:var(--primary-soft);
  transform:translateY(-3px);
  box-shadow:0 20px 36px rgba(255,90,54,.46);
}
.float-go svg{width:18px;height:18px}
.float-top{
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);
  background:var(--surface-2);
  color:var(--text);
  display:flex;align-items:center;justify-content:center;
  transition:background .2s,border-color .2s,transform .2s;
}
.float-top:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.float-top svg{width:18px;height:18px}

/* ===== Reveal ===== */
body.anim-ready .reveal{
  opacity:0;transform:translateY(14px);
  transition:opacity .55s ease,transform .55s ease;
}
body.anim-ready .reveal.visible{
  opacity:1;transform:translateY(0);
}

/* ===== Responsive ===== */
@media(max-width:1100px){
  .schedule-card{grid-template-columns:160px minmax(0,1fr)}
  .sc-media{min-height:200px}
  .feature-main{padding:34px}
}
@media(max-width:992px){
  .nav-toggle{
    display:inline-flex;
  }
  .header-actions .btn-sm{display:none}
  .main-nav{
    position:fixed;
    top:0;right:0;bottom:0;
    transform:translateX(102%);
    width:min(76vw,360px);
    background:var(--surface);
    border-left:1px solid var(--line);
    box-shadow:-20px 0 50px rgba(0,0,0,.4);
    flex-direction:column;
    align-items:flex-start;
    padding:112px 28px 34px;
    gap:6px;
    z-index:100;
    transition:transform .35s ease;
    margin:0;
  }
  .main-nav.menu-open{transform:translateX(0)}
  .main-nav .nav-link{width:100%;font-size:1.15rem;padding:13px 12px}
  .drawer-footer{
    display:block;width:100%;
    margin-top:30px;padding-top:24px;
    border-top:1px solid var(--line-soft);
  }
  .drawer-footer .btn{width:100%;margin-bottom:10px}
  .online-badge{display:none}
  .header-actions{gap:8px}
  .header-inner{height:70px}
  .page-hero{padding:158px 0 76px}
  .section-block{padding:82px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
  .page-hero{padding:146px 0 64px}
  .page-hero h1{font-size:clamp(2rem,9.2vw,3rem)}
  .schedule-grid,.hot-grid,.feature-grid{grid-template-columns:1fr}
  .schedule-card{grid-template-columns:1fr}
  .sc-media{min-height:0;height:200px}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .section-block{padding:68px 0}
  .footer-bottom{flex-direction:column;text-align:center}
  .section-block.surface .sec-head,.sec-head{margin-bottom:36px}
}
@media(max-width:520px){
  .container{width:92%}
  .brand-text{font-size:1.12rem}
  .brand-text small{display:none}
  .brand-mark{width:36px;height:36px}
  .hero-actions .btn{width:100%;justify-content:center}
  .flow-grid{grid-template-columns:1fr}
  .feature-main,.feature-mini{padding:24px}
  .sc-content{padding:19px 17px 18px}
  .hot-card{min-height:270px;padding:18px}
  .faq-toggle{font-size:15px;padding:16px}
  .faq-answer-inner{padding:0 16px 20px 60px}
  .cta-inner{padding:64px 0 70px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .float-box{right:14px;bottom:14px}
  .float-go{padding:10px 14px}
}