/* roulang page: index */
:root {
  --bg: #0d1117;
  --bg-2: #121926;
  --surface: #182230;
  --surface-deep: #101823;
  --text-main: #f2f6fc;
  --text-soft: #b6c2d4;
  --muted: #8296ab;
  --border: rgba(255, 255, 255, 0.09);
  --line: rgba(255, 255, 255, 0.07);
  --primary: #22d3ee;
  --primary-rgb: 34, 211, 238;
  --secondary: #f5b84b;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --shadow-1: 0 20px 60px rgba(0, 0, 0, 0.3);
  --shadow-2: 0 10px 30px rgba(0, 0, 0, 0.22);
  --space-section: 90px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text-main);
  background:
    radial-gradient(circle at 80% 0%, rgba(34, 211, 238, 0.08), transparent 32rem),
    radial-gradient(circle at 10% 20%, rgba(94, 118, 255, 0.06), transparent 26rem),
    var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: inherit;
}

button,
input,
textarea {
  font-family: inherit;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
}

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

.section--tight {
  padding-top: 52px;
}

.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
  max-width: 1100px;
  margin: 0 auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--text-soft);
  margin-bottom: 18px;
}

.eyebrow i {
  color: var(--primary);
}

.section-title {
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.section-desc {
  color: var(--text-soft);
  font-size: 16px;
  max-width: 680px;
}

.section-head--center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

.section-head--center {
  text-align: center;
}

.section-head--center .eyebrow {
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.2;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn:hover {
  border-color: rgba(34, 211, 238, 0.45);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.28);
}

.btn:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

.btn--primary {
  background: linear-gradient(135deg, #2dd9f2, #1687f2);
  color: #0b111c;
  border: none;
}

.btn--primary:hover {
  color: #0b111c;
  box-shadow: 0 14px 30px rgba(34, 211, 238, 0.3);
}

.btn--ghost {
  background: transparent;
}

.btn--sm {
  padding: 9px 16px;
  font-size: 14px;
}

.btn-block {
  width: 100%;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.22);
  color: #a8eefc;
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
  line-height: 1.4;
  font-weight: 500;
}

.tag--amber {
  background: rgba(245, 184, 75, 0.1);
  border-color: rgba(245, 184, 75, 0.24);
  color: #ffd78a;
}

/* ===== Floating Dock Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  padding: 14px 16px 0;
  width: 100%;
}

.dock {
  max-width: 1180px;
  margin: 0 auto;
  background: rgba(18, 25, 38, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  padding: 9px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.35);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.02em;
  padding: 0 8px;
  flex-shrink: 0;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 13px;
  background: linear-gradient(135deg, #22d3ee, #5b7cfa);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #0b111c;
  font-size: 17px;
  box-shadow: 0 6px 18px rgba(34, 211, 238, 0.3);
}

.logo-text {
  white-space: nowrap;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 15px;
  font-weight: 500;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.07);
}

.nav-link.active {
  color: #fff;
  background: rgba(34, 211, 238, 0.14);
  border-color: rgba(34, 211, 238, 0.28);
}

.dock-side {
  display: flex;
  align-items: center;
  gap: 4px;
}

.dock-side .btn {
  padding: 8px 16px;
  font-size: 14px;
  border-radius: 999px;
}

.header-dot {
  width: 8px;
  height: 8px;
  background: #22d3ee;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.1);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding: 90px 0 80px;
  margin-top: 18px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 18px 18px 10px;
  border-radius: 36px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  z-index: -1;
}

.hero-bg:before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(13, 17, 23, 0.95) 16%, rgba(13, 17, 23, 0.72) 48%, rgba(13, 17, 23, 0.42)),
    linear-gradient(to top, rgba(13, 17, 23, 0.95), transparent 60%);
}

.hero-content {
  padding: 30px 0;
  max-width: 900px;
}

.hero-badge {
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(34px, 6vw, 66px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.035em;
  margin-bottom: 20px;
  max-width: 800px;
  background: linear-gradient(100deg, #ffffff 0%, #e6faff 60%, #c9f7ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  font-size: clamp(16px, 2vw, 19px);
  color: #d4e2f0;
  max-width: 660px;
  margin: 0 0 30px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-top: 10px;
}

.hero-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  margin-top: 48px;
  color: var(--text-soft);
  font-size: 14px;
}

.hero-note-item {
  display: inline-flex;
  gap: 9px;
  align-items: center;
}

.hero-note-item i {
  color: var(--primary);
}

/* ===== Feature cards ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 34px;
}

.feature-card {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 30px 24px;
  transition: all 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(34, 211, 238, 0.26);
  box-shadow: var(--shadow-2);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 15px;
  margin-bottom: 20px;
  background: rgba(34, 211, 238, 0.12);
  color: #5de5ff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  border: 1px solid rgba(34, 211, 238, 0.15);
}

.feature-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-soft);
  font-size: 14px;
}

/* ===== Category showcase ===== */
.category-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 36px;
}

.category-card {
  position: relative;
  overflow: hidden;
  border-radius: 26px;
  background-size: cover;
  background-position: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  min-height: 340px;
  display: flex;
  align-items: flex-end;
  transition: all 0.25s ease;
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-1);
}

.category-card--one {
  background-image: url("/assets/images/coverpic/cover-2.png");
}

.category-card--two {
  background-image: url("/assets/images/coverpic/cover-4.png");
}

.category-card:before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7, 10, 16, 0.94) 10%, rgba(7, 10, 16, 0.48) 52%, rgba(7, 10, 16, 0.15) 100%);
}

.category-card__content {
  position: relative;
  z-index: 2;
  padding: 30px;
  width: 100%;
}

.category-card__title {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 6px;
}

.category-card__desc {
  color: #c3d0e0;
  font-size: 15px;
  margin-bottom: 20px;
  max-width: 480px;
}

/* ===== Media showcase ===== */
.media-showcase {
  margin-top: 45px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  grid-auto-rows: 180px;
  gap: 18px;
}

.showcase-item {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.25s ease;
}

.showcase-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-2);
}

.showcase-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.showcase-item:hover img {
  transform: scale(1.06);
}

.showcase-item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.72) 0%, transparent 50%);
}

.showcase-item--hero {
  grid-row: span 2;
  grid-auto-rows: 100%;
}

.showcase-label {
  position: absolute;
  left: 16px;
  bottom: 14px;
  right: 14px;
  z-index: 3;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.showcase-label i {
  color: var(--primary);
}

/* ===== CMS Latest Section ===== */
.latest-section {
  background:
    linear-gradient(180deg, var(--bg-2), rgba(18, 25, 38, 0.8), var(--bg-2));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.latest-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 36px;
}

.latest-item {
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px;
  transition: all 0.22s ease;
}

.latest-item:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(34, 211, 238, 0.24);
}

.latest-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.latest-time {
  font-size: 13px;
  color: var(--muted);
}

.latest-title {
  font-size: 18px;
  line-height: 1.45;
  font-weight: 700;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.latest-title a:hover {
  color: #7deaff;
}

.latest-excerpt {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.latest-read {
  display: inline-flex;
  gap: 8px;
  margin-top: 16px;
  font-weight: 600;
  color: #8be9ff;
  font-size: 14px;
}

.empty-tip {
  grid-column: 1 / -1;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed rgba(255, 255, 255, 0.16);
  border-radius: 20px;
  padding: 44px 24px;
  text-align: center;
  color: var(--text-soft);
}

/* ===== Steps ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 42px;
}

.step-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  padding: 30px 22px 26px;
  border-radius: 20px;
  position: relative;
  transition: all 0.2s ease;
}

.step-card:hover {
  border-color: rgba(34, 211, 238, 0.25);
}

.step-num {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(34, 211, 238, 0.14);
  color: #6de4ff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  margin-bottom: 18px;
  border: 1px solid rgba(34, 211, 238, 0.2);
}

.step-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-soft);
}

/* ===== Compare ===== */
.compare-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid var(--border);
  margin-top: 36px;
  background: rgba(255, 255, 255, 0.02);
}

.compare-col {
  padding: 34px 30px;
}

.compare-col + .compare-col {
  border-left: 1px solid var(--line);
}

.compare-title {
  font-size: 21px;
  font-weight: 800;
  margin-bottom: 14px;
  display: flex;
  gap: 10px;
  align-items: center;
}

.compare-title--good i {
  color: #22d3ee;
}

.compare-title--warn i {
  color: #f5b84b;
}

.compare-col ul {
  display: grid;
  gap: 12px;
}

.compare-col li {
  position: relative;
  padding-left: 10px;
  color: var(--text-soft);
  font-size: 15px;
}

.compare-col li::before {
  content: "·";
  font-weight: 900;
  margin-right: 6px;
}

.check-list li {
  display: flex;
  gap: 10px;
  color: var(--text-soft);
  font-size: 15px;
}

.check-list i {
  color: #22d3ee;
  margin-top: 5px;
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 860px;
  margin: 36px auto 0;
  display: grid;
  gap: 12px;
}

.faq-item {
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 0 4px;
  transition: border 0.2s ease;
}

.faq-item[open] {
  border-color: rgba(34, 211, 238, 0.3);
}

.faq-item summary {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  list-style: none;
  padding: 18px 20px;
  font-weight: 700;
  font-size: 16px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(34, 211, 238, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #5de5ff;
  flex-shrink: 0;
}

.faq-item[open] .faq-plus {
  transform: rotate(45deg);
}

.faq-plus {
  transition: transform 0.2s ease;
}

.faq-answer {
  padding: 0 20px 20px;
  color: var(--text-soft);
  font-size: 15px;
  border-top: 1px solid var(--line);
  margin-top: 0;
  padding-top: 14px;
}

/* ===== CTA ===== */
.cta-zone {
  padding: 0;
}

.cta-inner {
  position: relative;
  overflow: hidden;
  border-radius: 34px;
  background:
    linear-gradient(120deg, rgba(13, 17, 23, 0.96), rgba(17, 31, 48, 0.7)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 70px 40px;
  text-align: center;
}

.cta-inner h2 {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 800;
  margin-bottom: 14px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.28;
}

.cta-inner p {
  color: var(--text-soft);
  max-width: 620px;
  margin: 0 auto 28px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.cta-shine {
  position: absolute;
  width: 320px;
  height: 320px;
  background: rgba(34, 211, 238, 0.16);
  border-radius: 50%;
  filter: blur(80px);
  top: -90px;
  right: -30px;
}

/* ===== Footer ===== */
.site-footer {
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.15);
  padding: 52px 0 28px;
  margin-top: 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 36px;
  align-items: start;
}

.footer-brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-brand .logo-mini {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  background: linear-gradient(135deg, #22d3ee, #5b7cfa);
  color: #0b111c;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-desc {
  color: var(--muted);
  max-width: 340px;
  line-height: 1.7;
}

.footer-col {
  padding-top: 10px;
}

.footer-col h4 {
  color: var(--text-main);
  font-size: 16px;
  margin-bottom: 16px;
}

.footer-col ul {
  display: grid;
  gap: 10px;
}

.footer-col a {
  color: var(--muted);
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: #e6f7ff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 26px;
  margin-top: 42px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  :root {
    --space-section: 72px;
  }

  .feature-grid,
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .media-showcase {
    grid-template-columns: 1fr 1fr 1fr 1fr;
    grid-auto-rows: 150px;
  }

  .showcase-item--hero {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .site-header {
    padding: 8px 8px 0;
  }

  .dock {
    border-radius: 22px;
    flex-wrap: wrap;
    padding: 10px 14px;
  }

  .main-nav {
    width: 100%;
    order: 3;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    margin-top: 4px;
    padding-top: 8px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .main-nav ul {
    gap: 4px;
    justify-content: flex-start;
    flex-wrap: nowrap;
  }

  .nav-link {
    white-space: nowrap;
    padding: 8px 14px;
  }

  .hero {
    padding: 52px 0 60px;
  }

  .hero h1 {
    font-size: clamp(32px, 8vw, 48px);
  }

  .category-split,
  .compare-panel,
  .latest-list {
    grid-template-columns: 1fr;
  }

  .compare-col + .compare-col {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .category-card__title {
    font-size: 22px;
  }

  .media-showcase {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 140px;
  }

  .showcase-item--hero {
    grid-column: span 2;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .cta-inner {
    padding: 50px 24px;
  }
}

@media (max-width: 520px) {
  .dock-side .btn {
    display: none;
  }

  .logo-text {
    font-size: 18px;
  }

  .feature-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .media-showcase {
    grid-auto-rows: 130px;
  }

  .hero-bg {
    border-radius: 24px;
  }

  .hero-note {
    gap: 8px 14px;
  }

  .btn-group .btn {
    width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* roulang page: article */
:root{
  --primary:#2d5cff;
  --primary-dark:#1d3faf;
  --primary-soft:#eaf1ff;
  --accent:#00b7ff;
  --ink:#0c1734;
  --text:#33405f;
  --muted:#6a7690;
  --line:#e6ecf5;
  --bg:#f5f8fe;
  --surface:#ffffff;
  --surface-soft:#f2f6fd;
  --dark:#0b152b;
  --radius-xl:28px;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-fly:0 18px 60px rgba(13,25,59,.12);
  --shadow-card:0 10px 30px rgba(13,25,59,.07);
  --shadow-btn:0 14px 40px rgba(45,92,255,.28);
  --maxw:1180px;
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  color:var(--text);
  background:var(--bg);
  font-size:16px;
  line-height:1.72;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea{font-family:inherit}
figure{margin:0}
h1,h2,h3,h4,h5{
  color:var(--ink);
  font-weight:700;
  line-height:1.26;
  margin:0;
  letter-spacing:-.01em;
}
.container{max-width:var(--maxw);margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:92px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  margin-bottom:40px;
}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:var(--radius-pill);
  padding:7px 15px;
  font-size:13px;
  font-weight:600;
  margin-bottom:12px;
}
.section-head h2{font-size:clamp(28px,4vw,40px)}
.section-head p{color:var(--muted);font-size:16px;max-width:560px}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  font-weight:600;
  font-size:15px;
  line-height:1;
  padding:14px 24px;
  border-radius:var(--radius-pill);
  border:0;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;
}
.btn:focus-visible{outline:3px solid rgba(45,92,255,.35);outline-offset:3px}
.btn--primary{background:linear-gradient(135deg,#2d5cff,#0099ff);color:#fff;box-shadow:0 12px 32px rgba(45,92,255,.26)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 16px 42px rgba(45,92,255,.34)}
.btn--ghost{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.32);backdrop-filter:blur(6px)}
.btn--ghost:hover{background:rgba(255,255,255,.24);transform:translateY(-2px)}
.btn--line{background:#fff;color:var(--primary);border:1px solid rgba(45,92,255,.22)}
.btn--line:hover{border-color:var(--primary);background:var(--primary-soft)}
.btn--lg{padding:17px 32px;font-size:16px}
.btn--sm{padding:11px 18px;font-size:14px}
.btn--block{width:100%}
.btn .header-dot{width:8px;height:8px;border-radius:50%;background:#37d67a;box-shadow:0 0 0 4px rgba(55,214,122,.18)}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 12px;
  border-radius:var(--radius-pill);
  font-size:13px;
  font-weight:600;
  background:#eef4ff;
  color:#3157d6;
}

/* header */
.site-header{padding:22px 22px 0;position:relative;z-index:50}
.dock{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  padding:12px 16px;
  border-radius:24px;
  border:1px solid rgba(255,255,255,.8);
  box-shadow:0 10px 38px rgba(15,31,74,.09);
}
.logo{flex:0 0 auto;display:flex;align-items:center;gap:10px;padding:4px 6px}
.logo-icon{
  width:38px;height:38px;
  border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2d5cff,#16c5ff);
  color:#fff;font-size:17px;
  box-shadow:0 8px 22px rgba(45,92,255,.26);
}
.logo-text{font-size:19px;font-weight:800;color:var(--ink);white-space:nowrap;letter-spacing:-.02em}
.main-nav{flex:1 1 auto;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.main-nav ul{display:flex;align-items:center;gap:4px;min-width:max-content}
.main-nav a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 16px;
  border-radius:999px;
  font-weight:600;
  font-size:15px;
  color:#4c5875;
  transition:background .2s,color .2s;
  white-space:nowrap;
}
.main-nav a i{font-size:14px;color:#9aa6c0}
.main-nav a:hover{background:#eef3ff;color:var(--primary)}
.main-nav a.active{background:linear-gradient(135deg,rgba(45,92,255,.12),rgba(0,185,255,.12));color:var(--primary)}
.main-nav a.active i{color:var(--primary)}
.dock-side{flex:0 0 auto}

/* article hero */
.article-hero{
  position:relative;
  padding:88px 0 110px;
  color:#fff;
  background:
    linear-gradient(120deg,rgba(8,15,42,.94),rgba(20,47,110,.88)),
    url('/assets/images/backpic/back-3.png') center/cover;
  overflow:hidden;
}
.article-hero::after{
  content:"";
  position:absolute;
  right:-160px;top:-160px;
  width:440px;height:440px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,183,255,.35),transparent 70%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero-pretitle{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:#cfe2ff;
  background:rgba(255,255,255,.12);
  padding:8px 16px;
  border-radius:999px;
  margin-bottom:22px;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.75);
  margin:0 0 18px;
}
.breadcrumb a{color:rgba(255,255,255,.85);transition:color .2s}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{opacity:.55}
.breadcrumb .crumb-now{color:#fff;font-weight:600}
.article-hero h1{
  color:#fff;
  font-size:clamp(30px,5vw,50px);
  max-width:900px;
  letter-spacing:-.02em;
}
.hero-sub{
  margin-top:14px;
  font-size:17px;
  color:rgba(255,255,255,.78);
  max-width:760px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.hero-meta span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.16);
  padding:9px 16px;
  border-radius:999px;
  font-size:14px;
  color:#eaf3ff;
}

/* article layout */
.article-wrap{position:relative;z-index:8;margin-top:-64px;padding-bottom:30px}
.article-card{
  background:var(--surface);
  border-radius:28px;
  box-shadow:0 22px 70px rgba(12,28,71,.13);
  border:1px solid rgba(255,255,255,.9);
  padding:50px 54px;
}
.article-body{
  font-size:16.5px;
  color:#2c3857;
}
.article-body > * + *{margin-top:1.2em}
.article-body p{line-height:1.92}
.article-body h2,.article-body h3,.article-body h4{color:var(--ink);margin-top:2em}
.article-body h2{font-size:27px;margin-bottom:.6em}
.article-body h3{font-size:21px}
.article-body img{border-radius:18px;width:auto;height:auto;margin:1.8em 0;box-shadow:var(--shadow-card)}
.article-body ul,.article-body ol{padding-left:22px;list-style:disc;line-height:1.9}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.45em}
.article-body blockquote{
  margin:1.8em 0;
  padding:20px 24px;
  background:#f4f8ff;
  border-left:4px solid var(--primary);
  border-radius:0 16px 16px 0;
  color:#42506c;
}
.article-body a{color:var(--primary);font-weight:600;border-bottom:1px solid rgba(45,92,255,.28)}
.article-body a:hover{color:var(--primary-dark);border-color:var(--primary)}
.not-found{
  text-align:center;
  padding:48px 20px;
}
.not-found-icon{
  width:72px;height:72px;
  margin:0 auto 18px;
  border-radius:24px;
  display:flex;align-items:center;justify-content:center;
  background:#f0f5ff;
  font-size:30px;
  color:var(--primary);
}
.not-found h2{font-size:28px;margin-bottom:10px}
.not-found p{color:var(--muted);max-width:360px;margin:0 auto 26px}

/* aside */
.article-aside .side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-card);
  padding:26px;
  margin-bottom:24px;
}
.side-card .kicker{
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--primary);
}
.side-card h3{font-size:20px;margin:10px 0 8px}
.side-card p{font-size:14.5px;color:var(--muted);margin:0 0 20px}
.side-card .btn{margin-top:2px}
.cover-wrap{
  position:relative;
  border-radius:16px;
  overflow:hidden;
  margin-bottom:18px;
}
.cover-wrap img{width:100%;height:190px;object-fit:cover}
.cover-wrap::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(4,12,34,.62),transparent 48%);
}
.side-nav-list li+li{border-top:1px solid #edf1f9}
.side-nav-list a{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 2px;
  font-weight:600;
  font-size:14.5px;
  color:#2a3754;
  transition:color .2s,padding-left .2s;
}
.side-nav-list a i{width:24px;color:var(--primary)}
.side-nav-list a:hover{color:var(--primary);padding-left:6px}
.mini-tip{
  background:linear-gradient(140deg,#0d1530,#16295d);
  border:none;
  color:#fff;
}
.mini-tip h3{color:#fff}
.mini-tip p{color:rgba(255,255,255,.7)}
.mini-tip .icon-badge{
  width:42px;height:42px;
  border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.14);
  color:#8fd5ff;
  font-size:18px;
  margin-bottom:14px;
}

/* feature cards */
.feature-grid{margin-top:-12px}
.feature-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  padding:34px 28px;
  height:100%;
  box-shadow:var(--shadow-card);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-fly);border-color:rgba(45,92,255,.24)}
.feature-icon{
  width:54px;height:54px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:17px;
  font-size:22px;
  margin-bottom:22px;
}
.feature-icon.blue{background:#e9f2ff;color:#2d6cff}
.feature-icon.cyan{background:#e0fbff;color:#00aadb}
.feature-icon.green{background:#e5fbef;color:#10b362}
.feature-icon.amber{background:#fff3e2;color:#ff9d2e}
.feature-card h3{font-size:19px;margin-bottom:9px}
.feature-card p{font-size:14.5px;color:var(--muted);line-height:1.78;margin:0}

/* channel cards */
.channel-section{
  border-radius:42px;
  margin:0 18px;
  padding:88px 0;
}
.channel-grid{display:flex;gap:26px}
.channel-card{
  flex:1;
  display:block;
  background:#fff;
  border:1px solid var(--line);
  border-radius:28px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .28s,box-shadow .28s;
}
.channel-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-fly)}
.channel-img{position:relative;overflow:hidden;height:230px}
.channel-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.channel-card:hover .channel-img img{transform:scale(1.04)}
.channel-img .channel-tag{
  position:absolute;top:18px;left:18px;z-index:2;
  background:#fff;color:var(--ink);
  border-radius:999px;font-size:12px;font-weight:700;
  padding:7px 13px;
}
.channel-body{padding:28px}
.channel-body h3{font-size:22px;margin-bottom:8px}
.channel-body p{font-size:14px;color:var(--muted);margin:0 0 16px}
.channel-body .go-link{display:inline-flex;align-items:center;gap:7px;font-weight:700;color:var(--primary);font-size:14px}
.channel-body .go-link i{transition:transform .2s}
.channel-card:hover .go-link i{transform:translateX(4px)}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion{
  background:transparent;
  border:none;
  margin:0;
}
.accordion-item{
  background:#fff;
  border:1px solid var(--line) !important;
  border-radius:20px !important;
  overflow:hidden;
  margin-bottom:14px;
  box-shadow:0 6px 18px rgba(15,31,74,.05);
}
.accordion-title{
  display:flex !important;
  align-items:center;
  justify-content:space-between;
  background:transparent !important;
  border:none !important;
  padding:24px 28px !important;
  font-size:17px;
  font-weight:700;
  color:var(--ink) !important;
  position:relative;
}
.accordion-title::after{
  content:"\f107";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:17px;
  color:var(--primary);
  transition:transform .25s;
}
.accordion-item.is-active .accordion-title::after{transform:rotate(180deg)}
.accordion-title:hover{background:#f8fbff !important}
.accordion-content{
  border:none !important;
  padding:0 28px 24px !important;
  font-size:15px;
  color:var(--text);
  background:#fff !important;
  line-height:1.9;
}

/* CTA */
.cta-section{
  position:relative;
  border-radius:36px;
  margin:0 18px;
  padding:90px 30px;
  text-align:center;
  color:#fff;
  overflow:hidden;
  background:
    linear-gradient(115deg,rgba(9,16,42,.95),rgba(22,57,132,.9)),
    url('/assets/images/backpic/back-2.webp') center/cover;
}
.cta-section h2{color:#fff;font-size:clamp(30px,5vw,44px)}
.cta-section p{color:rgba(255,255,255,.8);max-width:620px;margin:18px auto 32px;font-size:17px}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px}
.cta-label{
  position:absolute;
  top:28px;left:50%;
  transform:translateX(-50%);
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.2);
  color:#dff3ff;
  font-size:13px;
  font-weight:600;
  border-radius:999px;
  padding:8px 16px;
}

/* footer */
.site-footer{
  background:#0a142b;
  color:#9dabca;
  padding:68px 0 30px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2.2fr 1fr 1fr;
  gap:42px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:20px;
  font-weight:800;
  line-height:1.2;
}
.logo-mini{
  width:36px;height:36px;
  border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2d5cff,#16c5ff);
  color:#fff;
  font-size:15px;
}
.footer-desc{margin:18px 0 0;font-size:15px;line-height:1.8;max-width:440px;color:#9dabca}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer-col ul li{margin-bottom:12px}
.footer-col a{font-size:15px;color:#9dabca;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding-top:26px;
  flex-wrap:wrap;
  font-size:14px;
  color:#6d7ba0;
}

/* responsive */
@media(max-width:1024px){
  .article-wrap{margin-top:-36px}
  .article-card{padding:40px 36px}
  .section{padding:72px 0}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  body{font-size:15px}
  .site-header{padding:10px 10px 0}
  .dock{flex-wrap:wrap;gap:8px;padding:10px}
  .logo-text{font-size:17px}
  .logo-icon{width:34px;height:34px}
  .main-nav{order:3;width:100%;flex-basis:100%}
  .main-nav ul{justify-content:flex-start}
  .nav-link{padding:8px 12px;font-size:13px!important}
  .dock-side{flex:0 0 auto}
  .dock-side .btn{font-size:13px;padding:9px 14px}
  .article-hero{padding:64px 0 92px}
  .article-hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-meta{gap:8px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .article-wrap{margin-top:-30px}
  .article-card{padding:34px 22px;border-radius:22px}
  .article-body{font-size:16px}
  .article-body h2{font-size:23px}
  .channel-section{border-radius:28px;margin:0 6px;padding:60px 0}
  .channel-grid{flex-direction:column}
  .channel-img{height:200px}
  .cta-section{border-radius:28px;margin:0 6px;padding:64px 20px}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
  .section-head h2{font-size:25px}
  .article-card{padding:28px 18px}
  .side-card{padding:20px}
  .dock-side{display:none}
  .main-nav{order:2}
  .article-hero .breadcrumb{font-size:12.5px}
  .article-hero h1{font-size:24px}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category1 */
:root {
    --bg: #0a0e15;
    --bg-deep: #070a10;
    --bg-soft: #101725;
    --bg-card: rgba(255, 255, 255, 0.035);
    --glass: rgba(12, 16, 26, 0.78);
    --line: rgba(255, 255, 255, 0.1);
    --line-strong: rgba(255, 255, 255, 0.16);
    --text: #f4f6fb;
    --text-soft: #b8c0cf;
    --muted: #78849b;
    --brand: #ff5172;
    --brand-2: #ff9d66;
    --brand-3: #ffd36e;
    --grad: linear-gradient(135deg, #ff5172 0%, #ff8f5e 60%, #ffd070 100%);
    --success: #2fd5a8;
    --radius-lg: 28px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --radius-pill: 999px;
    --shadow-sm: 0 6px 20px rgba(0, 0, 0, 0.28);
    --shadow-md: 0 16px 44px rgba(0, 0, 0, 0.34);
    --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.45);
    --transition: all 0.25s ease;
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }

  ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
  }

  img {
    max-width: 100%;
    display: block;
  }

  p {
    margin: 0 0 16px;
  }

  .container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 clamp(16px, 4vw, 44px);
    position: relative;
  }

  .section {
    padding: clamp(64px, 9vw, 112px) 0;
    position: relative;
  }

  .section--soft {
    background: var(--bg-soft);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    position: relative;
  }

  .section--flush-top {
    padding-top: 40px;
  }

  .section-head {
    max-width: 760px;
    margin-bottom: 44px;
  }

  .section-head.is-center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
  }

  .section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 81, 114, 0.1);
    color: #ffb0bd;
    border: 1px solid rgba(255, 81, 114, 0.22);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.06em;
    padding: 7px 15px;
    border-radius: var(--radius-pill);
    margin-bottom: 18px;
  }

  .section-title {
    font-size: clamp(28px, 4vw, 44px);
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 16px;
    color: var(--text);
  }

  .section-lead {
    color: var(--text-soft);
    font-size: 16px;
    margin-bottom: 0;
  }

  .grad-text {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 24px;
    border-radius: var(--radius-pill);
    font-weight: 700;
    font-size: 15px;
    line-height: 1.2;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    background: transparent;
    color: var(--text);
    text-align: center;
  }

  .btn i {
    font-size: 15px;
  }

  .btn--primary {
    background: linear-gradient(135deg, #ff5172, #ff8f5e);
    color: #fff;
    box-shadow: 0 8px 28px rgba(255, 81, 114, 0.3);
  }

  .btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 34px rgba(255, 81, 114, 0.4);
  }

  .btn--ghost {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(6px);
  }

  .btn--ghost:hover {
    border-color: rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
  }

  .btn--sm {
    padding: 8px 18px;
    font-size: 14px;
  }

  .site-header {
    position: fixed;
    top: 18px;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: center;
    padding: 0 14px;
    pointer-events: none;
  }

  .dock {
    pointer-events: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    width: min(1120px, 100%);
    background: var(--glass);
    border: 1px solid var(--line);
    padding: 8px 10px 8px 18px;
    border-radius: var(--radius-pill);
    box-shadow: 0 16px 46px rgba(0, 0, 0, 0.48);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
  }

  .logo {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--text);
    font-weight: 800;
    font-size: 17px;
    letter-spacing: -0.3px;
    white-space: nowrap;
  }

  .logo-icon {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--grad);
    border-radius: 12px;
    font-size: 16px;
    color: #fff;
    box-shadow: 0 5px 18px rgba(255, 81, 114, 0.4);
    flex-shrink: 0;
  }

  .logo-text {
    line-height: 1.3;
  }

  .main-nav {
    display: flex;
    overflow-x: auto;
  }

  .main-nav ul {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: nowrap;
  }

  .main-nav a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-soft);
    font-weight: 600;
    font-size: 14px;
    padding: 10px 16px;
    border-radius: var(--radius-pill);
    white-space: nowrap;
  }

  .main-nav a i {
    font-size: 14px;
    color: var(--muted);
  }

  .main-nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.07);
  }

  .main-nav a.active {
    color: #fff;
    background: linear-gradient(135deg, rgba(255, 81, 114, 0.16), rgba(255, 143, 94, 0.12));
    box-shadow: inset 0 0 0 1px rgba(255, 81, 114, 0.25);
  }

  .main-nav a.active i {
    color: #ffb2bd;
  }

  .dock-side {
    flex-shrink: 0;
  }

  .dock-side .btn {
    box-shadow: 0 6px 16px rgba(255, 81, 114, 0.24);
  }

  .header-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #2fe0ad;
    box-shadow: 0 0 0 3px rgba(47, 224, 173, 0.18);
    display: inline-block;
    margin-right: 2px;
  }

  /* ======= hero ======= */
  .category-hero {
    position: relative;
    min-height: 780px;
    display: flex;
    align-items: center;
    padding: 158px 0 92px;
    overflow: hidden;
    background: var(--bg-deep);
  }

  .category-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      radial-gradient(circle at 18% 30%, rgba(255, 89, 112, 0.2), transparent 28%),
      radial-gradient(circle at 78% 12%, rgba(255, 177, 94, 0.14), transparent 30%),
      linear-gradient(180deg, rgba(7, 10, 16, 0.2) 0%, rgba(7, 10, 16, 0.65) 80%, var(--bg) 100%);
    pointer-events: none;
  }

  .hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center 35%;
    opacity: 0.42;
  }

  .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 2;
  }

  .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--line);
    backdrop-filter: blur(12px);
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    color: #e9d9d4;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin-bottom: 24px;
  }

  .hero-eyebrow i {
    color: #ffd36e;
  }

  .hero-title {
    font-size: clamp(38px, 6.6vw, 72px);
    line-height: 1.08;
    letter-spacing: -0.04em;
    font-weight: 900;
    margin: 0 0 24px;
  }

  .hero-title .major {
    display: block;
    color: #fff;
  }

  .hero-title .minor {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    padding-bottom: 4px;
  }

  .hero-lead {
    font-size: 17px;
    color: #cbd2df;
    max-width: 600px;
    margin-bottom: 30px;
    letter-spacing: 0.01em;
  }

  .hero-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 44px;
  }

  .hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    border: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.18);
    backdrop-filter: blur(8px);
    border-radius: 24px;
    padding: 8px;
    width: fit-content;
    max-width: 100%;
  }

  .hero-stat {
    padding: 12px 22px;
    text-align: left;
  }

  .hero-stat + .hero-stat {
    border-left: 1px solid var(--line);
  }

  .hero-stat strong {
    display: block;
    font-size: 26px;
    line-height: 1.2;
    letter-spacing: -0.03em;
    font-weight: 800;
  }

  .hero-stat span {
    color: var(--muted);
    font-size: 13px;
  }

  .hero-visual {
    position: relative;
  }

  .hero-visual::after {
    content: "";
    position: absolute;
    inset: 14px -14px -14px 14px;
    border-radius: 34px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    z-index: 0;
  }

  .media-film {
    position: relative;
    z-index: 2;
    overflow: hidden;
    border-radius: 34px;
    background: #131a27;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
  }

  .media-film img {
    width: 100%;
    height: 440px;
    object-fit: cover;
    transition: transform 0.45s ease;
  }

  .media-film:hover img {
    transform: scale(1.03);
  }

  .media-overlay {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(180deg, rgba(0, 0, 0, 0.2) 0%, transparent 34%, rgba(0, 0, 0, 0.65) 100%);
    z-index: 1;
  }

  .media-top {
    position: absolute;
    left: 20px;
    right: 20px;
    top: 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    z-index: 2;
  }

  .live-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(9, 12, 19, 0.66);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    padding: 7px 14px;
    border-radius: 999px;
    backdrop-filter: blur(12px);
  }

  .live-badge i {
    color: #ff4b68;
    font-size: 10px;
  }

  .film-label {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border-radius: 999px;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 600;
    backdrop-filter: blur(8px);
  }

  .media-bottom {
    position: absolute;
    left: 24px;
    right: 24px;
    bottom: 24px;
    z-index: 2;
  }

  .media-bottom h3 {
    color: #fff;
    font-size: 23px;
    font-weight: 800;
    margin: 0 0 4px;
  }

  .media-bottom p {
    color: rgba(255, 255, 255, 0.78);
    font-size: 14px;
    margin: 0 0 14px;
  }

  .media-progress {
    background: rgba(255, 255, 255, 0.16);
    height: 5px;
    border-radius: 999px;
    overflow: hidden;
  }

  .media-progress span {
    display: block;
    height: 100%;
    width: 76%;
    background: var(--grad);
    border-radius: inherit;
  }

  /* key cards */
  .feature-panel {
    padding: clamp(40px, 7vw, 88px) 0;
    background: linear-gradient(180deg, #0d141f 0%, #0a0e15 100%);
  }

  .cards-row {
    row-gap: 24px;
  }

  .key-card {
    position: relative;
    height: 100%;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 28px 26px 24px;
    overflow: hidden;
    transition: var(--transition);
  }

  .key-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 3px;
    background: var(--grad);
    opacity: 0.55;
    transition: opacity 0.25s ease;
  }

  .key-card:hover {
    background: rgba(255, 255, 255, 0.06);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--line-strong);
  }

  .key-card:hover::before {
    opacity: 1;
  }

  .key-card .key-icon {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 19px;
    color: #ffb178;
    margin-bottom: 18px;
  }

  .key-card h3 {
    color: #f1f3f8;
    font-size: 18px;
    line-height: 1.4;
    font-weight: 800;
    margin: 0 0 10px;
  }

  .key-card p {
    color: var(--text-soft);
    font-size: 14px;
    margin-bottom: 0;
  }

  .key-card .key-tags {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 18px;
  }

  .key-card .key-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 999px;
    padding: 4px 12px;
    font-size: 12px;
    color: #ced7e7;
    border: 1px solid var(--line);
  }

  /* directory cards */
  .directory-section {
    position: relative;
    background: #101622;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  }

  .directory-card {
    height: 100%;
    overflow: hidden;
    background: #0a0f17;
    border: 1px solid var(--line);
    border-radius: 26px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
  }

  .directory-card:hover {
    border-color: rgba(255, 255, 255, 0.24);
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
  }

  .directory-cover {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: 26px 26px 0 0;
  }

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

  .directory-card:hover .directory-cover img {
    transform: scale(1.06);
  }

  .directory-cover::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 48%, rgba(4, 6, 10, 0.82) 100%);
  }

  .cover-badge {
    position: absolute;
    right: 12px;
    top: 12px;
    z-index: 2;
    background: rgba(8, 11, 18, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.16);
    color: #fff;
    border-radius: 999px;
    padding: 5px 13px;
    font-size: 12px;
    font-weight: 700;
    backdrop-filter: blur(8px);
  }

  .cover-index {
    position: absolute;
    left: 14px;
    bottom: 10px;
    z-index: 2;
    color: rgba(255, 255, 255, 0.72);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
  }

  .directory-content {
    padding: 26px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .directory-content h3 {
    font-size: 21px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 12px;
  }

  .directory-content p {
    color: var(--text-soft);
    font-size: 14px;
    flex: 1;
    margin-bottom: 20px;
  }

  .directory-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #ff8e9f;
    font-weight: 700;
    font-size: 14px;
  }

  .directory-link i {
    transition: transform 0.2s ease;
  }

  .directory-card:hover .directory-link i {
    transform: translateX(5px);
  }

  /* browse strip */
  .strip-section {
    background: #0b1019;
    padding: clamp(56px, 8vw, 96px) 0;
    overflow: hidden;
  }

  .horizontal-strip {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
  }

  .strip-item {
    display: block;
    border-radius: 18px;
    overflow: hidden;
    position: relative;
    flex: 0 1 18%;
    min-width: 150px;
    aspect-ratio: 3 / 4;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
  }

  .strip-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.75);
    transition: all 0.3s ease;
  }

  .strip-item:hover {
    transform: translateY(-6px) scale(1.03);
  }

  .strip-item:hover img {
    filter: brightness(0.95);
  }

  .strip-content {
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 12px;
    z-index: 2;
  }

  .strip-content .strip-label {
    display: block;
    font-size: 14px;
    font-weight: 800;
    margin-bottom: 2px;
  }

  .strip-content span {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.72);
  }

  .strip-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-top: 36px;
    flex-wrap: wrap;
    padding-top: 18px;
    border-top: 1px solid var(--line);
  }

  .strip-bottom p {
    color: var(--muted);
    font-size: 13px;
    margin: 0;
  }

  .strip-bottom a {
    font-size: 14px;
    color: #e3eaef;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  .strip-bottom a:hover {
    color: #ffb1bd;
  }

  /* steps */
  .steps-section {
    background: var(--bg);
    padding: clamp(64px, 8vw, 104px) 0;
  }

  .step-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }

  .step-card {
    background: rgba(255, 255, 255, 0.034);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 30px 24px 24px;
    position: relative;
    transition: var(--transition);
  }

  .step-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--line-strong);
    transform: translateY(-4px);
  }

  .step-num {
    font-size: 42px;
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(135deg, #ff8e9f, #5d6d80);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 20px;
    letter-spacing: -0.05em;
  }

  .step-card h3 {
    font-size: 18px;
    font-weight: 800;
    margin: 0 0 10px;
  }

  .step-card p {
    font-size: 14px;
    color: var(--text-soft);
    margin: 0;
  }

  /* FAQ */
  .faq-section {
    background: #0c121c;
    padding: clamp(64px, 8vw, 104px) 0;
  }

  .faq-inner {
    max-width: 880px;
    margin: 0 auto;
  }

  .faq-list {
    margin-top: 34px;
  }

  .faq-item {
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.025);
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color 0.25s ease;
  }

  .faq-item[open] {
    border-color: rgba(255, 255, 255, 0.24);
  }

  .faq-item summary {
    display: flex;
    align-items: center;
    gap: 14px;
    justify-content: space-between;
    cursor: pointer;
    padding: 20px 24px;
    list-style: none;
    font-weight: 700;
    color: #eef1f7;
    font-size: 15px;
    line-height: 1.5;
    user-select: none;
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-icon {
    position: relative;
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.14);
  }

  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    background: #b9c3d3;
    transform: translate(-50%, -50%);
    transition: all 0.2s ease;
  }

  .faq-icon::before {
    width: 12px;
    height: 2px;
  }

  .faq-icon::after {
    width: 2px;
    height: 12px;
  }

  .faq-item[open] .faq-icon::after {
    transform: translate(-50%, -50%) scaleY(0);
  }

  .faq-item[open] .faq-icon {
    background: rgba(255, 81, 114, 0.2);
  }

  .faq-answer {
    padding: 0 24px 22px 24px;
    color: var(--text-soft);
    font-size: 14px;
  }

  .faq-answer p {
    margin-bottom: 0;
  }

  /* CTA */
  .cta-section {
    position: relative;
    overflow: hidden;
    background: var(--bg-soft);
    padding: clamp(40px, 6vw, 76px) 0;
  }

  .cta-panel {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    border-radius: 32px;
    background: linear-gradient(135deg, rgba(255, 81, 114, 0.16), rgba(255, 177, 94, 0.1));
    border: 1px solid rgba(255, 255, 255, 0.14);
    padding: clamp(28px, 4vw, 54px);
    overflow: hidden;
  }

  .cta-panel::after {
    content: "";
    position: absolute;
    right: -90px;
    top: -90px;
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(255, 168, 94, 0.2), transparent 68%);
  }

  .cta-content {
    position: relative;
    z-index: 2;
    flex: 1;
  }

  .cta-content h2 {
    font-size: clamp(24px, 3vw, 36px);
    line-height: 1.3;
    margin-bottom: 12px;
    letter-spacing: -0.03em;
  }

  .cta-content p {
    color: var(--text-soft);
    margin-bottom: 0;
    max-width: 580px;
  }

  .cta-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
  }

  /* footer */
  .site-footer {
    background: #070a10;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 58px 0 26px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr;
    gap: 36px;
    margin-bottom: 42px;
  }

  .footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 14px;
  }

  .logo-mini {
    width: 34px;
    height: 34px;
    background: var(--grad);
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
  }

  .footer-desc {
    color: var(--muted);
    font-size: 14px;
    max-width: 350px;
    margin-bottom: 0;
    line-height: 1.8;
  }

  .footer-col h4 {
    color: #dfe5ee;
    font-size: 15px;
    font-weight: 800;
    margin: 4px 0 16px;
    position: relative;
    padding-bottom: 10px;
  }

  .footer-col h4::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    height: 2px;
    width: 26px;
    background: var(--grad);
    border-radius: 4px;
  }

  .footer-col ul li {
    margin-bottom: 10px;
  }

  .footer-col ul a {
    color: var(--muted);
    font-size: 14px;
    transition: all 0.2s ease;
  }

  .footer-col ul a:hover {
    color: #fff;
    padding-left: 5px;
  }

  .footer-col ul li:not(.footer-col ul a) {
    color: var(--muted);
    font-size: 14px;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    color: var(--muted);
    font-size: 13px;
  }

  /* foundation grid helper overrides */
  .grid-tight {
    row-gap: 26px;
  }

  .cell-card {
    height: 100%;
  }

  /* ======= responsive ======= */
  @media screen and (max-width: 1024px) {
    .hero-grid {
      gap: 42px;
    }

    .hero-stats {
      width: 100%;
    }

    .media-film img {
      height: 360px;
    }

    .step-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .horizontal-strip {
      overflow-x: auto;
      justify-content: flex-start;
    }

    .strip-item {
      min-width: 150px;
      flex: 0 0 160px;
    }

    .footer-grid {
      grid-template-columns: 1fr 0.8fr 0.8fr;
    }
  }

  @media screen and (max-width: 816px) {
    .dock {
      flex-wrap: wrap;
    }

    .main-nav {
      order: 3;
      width: 100%;
    }

    .main-nav ul {
      justify-content: flex-start;
      padding-bottom: 2px;
    }

    .hero-grid {
      grid-template-columns: 1fr;
    }

    .category-hero {
      min-height: auto;
      padding: 158px 0 72px;
    }

    .hero-visual {
      max-width: 520px;
      margin-top: 8px;
    }

    .footer-grid {
      grid-template-columns: 1fr;
    }
  }

  @media screen and (max-width: 640px) {
    .sky-header {
      top: 12px;
    }

    .dock {
      padding-left: 10px;
    }

    .logo-text {
      font-size: 15px;
    }

    .dock-side .btn span {
      display: none;
    }

    .dock-side .btn i {
      margin-right: 0;
    }

    .btn--sm {
      padding: 8px 14px;
    }

    .step-grid {
      grid-template-columns: 1fr;
    }

    .horizontal-strip {
      gap: 10px;
    }

    .strip-item {
      min-width: 132px;
      flex-basis: 136px;
    }

    .hero-stat strong {
      font-size: 22px;
    }

    .hero-stat {
      padding: 10px 16px;
    }

    .hero-actions {
      align-items: stretch;
      flex-direction: column;
    }

    .hero-actions .btn {
      width: 100%;
    }

    .half-strip {
      grid-template-columns: 1fr;
    }

    .footer-bottom {
      flex-direction: column;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      animation-duration: 0.001s !important;
      transition-duration: 0.001s !important;
    }
  }

/* roulang page: category2 */
:root{
  --bg:#081021;
  --bg2:#0d1526;
  --panel:#111b31;
  --panel2:#0d1630;
  --line:rgba(255,255,255,.10);
  --text:#eef4ff;
  --muted:#a2b3cd;
  --brand:#f5c44d;
  --brand-2:#ff9a62;
  --cyan:#57d6f0;
  --ok:#67e0a3;
  --radius:22px;
  --radius-s:14px;
  --shadow:0 22px 60px rgba(0,0,0,.38);
  --glow:0 0 0 1px rgba(245,196,77,.18), 0 16px 40px rgba(0,0,0,.3);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text);
  background:var(--bg);
  font-family:"HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(245,196,77,.7);outline-offset:3px;border-radius:8px}
img{display:block;max-width:100%;border:0}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,h5,p{margin:0}
.container{width:min(1200px,100% - 48px);margin-inline:auto}
.section{padding:clamp(4.25rem,8vw,6.5rem) 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(17,25,48,.6),rgba(8,16,33,.4))}
.section-head{max-width:820px;margin:0 auto 48px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--brand);background:rgba(245,196,77,.1);border:1px solid rgba(245,196,77,.25);padding:8px 18px;border-radius:999px;backdrop-filter:blur(8px)}
.eyebrow i{opacity:.9}
.section-head h2{font-size:clamp(1.9rem,3.6vw,3rem);line-height:1.2;font-weight:800;margin:18px 0 14px;letter-spacing:-.03em}
.section-head .head-desc{color:var(--muted);font-size:1.05rem;line-height:1.9}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:700;padding:14px 28px;border-radius:999px;border:1px solid transparent;line-height:1.2;transition:all .2s ease;cursor:pointer}
.btn i{font-size:.95em}
.btn--primary{background:linear-gradient(135deg,#f7cf5a,#ef9c3b);color:#171307;box-shadow:0 10px 30px rgba(239,156,59,.3)}
.btn--primary:hover{background:linear-gradient(135deg,#ffe28a,#f7a847);transform:translateY(-2px);box-shadow:0 14px 36px rgba(239,156,59,.38)}
.btn--ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.15);color:#fff;backdrop-filter:blur(12px)}
.btn--ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);border-color:rgba(255,255,255,.28)}
.btn--sm{padding:9px 18px;font-size:.9rem}
.text-strong{color:var(--brand);font-weight:700}
.gradient-text{background:linear-gradient(100deg,#f9d77a,#f4a640 70%);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===== 顶部导航 ===== */
.site-header{position:sticky;top:14px;z-index:80;display:flex;justify-content:center;padding:0 18px;pointer-events:none}
.dock{pointer-events:auto;width:min(1120px,100%);gap:16px;display:flex;align-items:center;background:rgba(10,16,31,.78);border:1px solid rgba(255,255,255,.09);backdrop-filter:blur(20px);border-radius:26px;box-shadow:0 16px 50px rgba(0,0,0,.45);padding:10px 16px 10px 22px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.18rem;color:#fff;letter-spacing:-.02em;white-space:nowrap}
.logo-icon{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;background:linear-gradient(135deg,#f7cf5a,#e9654c);color:#221303;font-size:1.1rem;box-shadow:0 8px 18px rgba(245,196,77,.25)}
.logo-text{white-space:nowrap}
.main-nav{flex:1;min-width:0}
.main-nav ul{display:flex;justify-content:center;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.main-nav ul::-webkit-scrollbar{display:none}
.nav-link{display:inline-flex;align-items:center;gap:7px;font-size:.94rem;font-weight:600;color:#cad5e8;padding:9px 14px;border-radius:999px;transition:all .2s;white-space:nowrap}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.active{color:#1a1205;background:linear-gradient(135deg,#fbe1a0,#f1b451)}
.dock-side{flex:none}
.header-dot{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px rgba(103,224,163,.25);display:inline-block}

/* ===== 共享页脚 ===== */
.site-footer{background:#050a16;border-top:1px solid rgba(255,255,255,.07);padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:42px;margin-bottom:42px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:1.45rem;font-weight:800;color:#fff;margin-bottom:14px}
.logo-mini{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,#f7cf5a,#e9654c);color:#1c1202}
.footer-desc{color:#8ea2bd;max-width:320px;line-height:1.8}
.footer-col h4{font-size:1rem;color:#fff;margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:#9cb0ca;transition:color .2s}
.footer-col a:hover{color:#f7d77a}
.footer-col li.no-link{color:#96a9c2;font-size:.95rem}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:14px;border-top:1px solid rgba(255,255,255,.08);padding-top:25px;color:#788ba8;font-size:.88rem;flex-wrap:wrap}

/* ===== Hero ===== */
.hero{position:relative;min-height:75vh;display:flex;align-items:center;overflow:hidden;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;background-attachment:scroll}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(4,7,15,.96) 0%,rgba(5,9,20,.9) 30%,rgba(9,17,34,.62) 68%,rgba(6,12,25,.4) 100%)}
.hero-content{position:relative;z-index:2;width:100%;padding:clamp(90px,12vh,150px) 0 70px;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:70px}
.hero-copy .hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);padding:7px 16px;border-radius:999px;font-size:.85rem;backdrop-filter:blur(6px)}
.hero-copy .hero-tag i{color:var(--brand)}
.hero-copy h1{font-size:clamp(2.7rem,6.3vw,4.8rem);font-weight:900;line-height:1.1;letter-spacing:-.045em;margin:24px 0 22px}
.hero-copy .hero-sub{font-size:clamp(1rem,1.4vw,1.16rem);color:#c6d4ea;max-width:620px;line-height:1.95}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:34px}
.hero-stats{display:flex;gap:0;margin-top:46px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:22px;padding:14px 22px;width:max-content;max-width:100%;backdrop-filter:blur(16px)}
.hero-stats .stat-item{padding:10px 22px}
.hero-stats .stat-item:first-child{padding-left:4px}
.hero-stats .stat-item + .stat-item{border-left:1px solid rgba(255,255,255,.15)}
.hero-stats strong{font-size:1.45rem;font-weight:800;color:#fff;display:block}
.hero-stats span{color:#a8bbd5;font-size:.85rem}
.hero-visual{position:relative;display:block}
.hero-mini-card{background:rgba(13,21,42,.7);border:1px solid rgba(255,255,255,.14);border-radius:26px;padding:18px;box-shadow:var(--shadow);backdrop-filter:blur(15px)}
.hero-mini-card .mini-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.hero-mini-card .mini-top b{font-size:.92rem}
.hero-mini-card .mini-cover{border-radius:16px;overflow:hidden;max-height:330px}
.hero-mini-card .mini-cover img{width:100%;height:100%;object-fit:cover}
.hero-mini-card .mini-meta{display:flex;align-items:center;justify-content:space-between;margin-top:14px;color:#bac9df;font-size:.9rem}
.mini-badge{background:rgba(245,196,77,.18);color:var(--brand);border-radius:999px;font-size:.75rem;padding:4px 10px;font-weight:700}
.mini-tag{height:7px;border-radius:5px;background:linear-gradient(90deg,#f5c44d,#ff7a4b);width:110px;display:block;margin-top:8px}

/* ===== 频道速览 ===== */
.channels{padding-bottom:0}
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card-item{background:linear-gradient(180deg,rgba(18,27,52,.95),rgba(12,20,38,.9));border:1px solid rgba(255,255,255,.09);border-radius:24px;overflow:hidden;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;display:flex;flex-direction:column}
.card-item:hover{transform:translateY(-8px);border-color:rgba(245,196,77,.35);box-shadow:0 24px 50px rgba(0,0,0,.35)}
.card-media{position:relative;aspect-ratio:4/3;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card-item:hover .card-media img{transform:scale(1.06)}
.card-badge{position:absolute;top:14px;left:14px;background:rgba(4,8,18,.7);backdrop-filter:blur(10px);color:#fff;font-size:.75rem;padding:5px 11px;border-radius:999px;display:inline-flex;align-items:center;gap:6px}
.card-badge i{color:var(--brand)}
.card-badge.hot{background:rgba(239,93,60,.2);border:1px solid rgba(239,93,60,.4)}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:1.15rem;font-weight:800;margin:0}
.card-body p{font-size:.9rem;color:#9fb0c9;line-height:1.7;flex:1}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:6px}
.channel-dot{width:8px;height:8px;border-radius:100%;display:inline-block;margin-right:7px}
.green{background:var(--ok);box-shadow:0 0 10px var(--ok)}
.yellow{background:var(--brand);box-shadow:0 0 10px var(--brand)}
.cyan{background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.channel-more{display:flex;align-items:center;gap:6px;font-size:.86rem;color:#d6e1f0;font-weight:600}
.channel-more span{transition:transform .2s}
.card-item:hover .channel-more span{transform:translateX(4px)}

/* ===== 热门聚焦区 ===== */
.trend-area{background:linear-gradient(180deg,rgba(13,22,44,.75),rgba(8,16,33,.2)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;border-top:1px solid rgba(255,255,255,.05)}
.trend-content{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:center}
.trend-content .section-head{margin-bottom:10px;text-align:left}
.trend-lead{margin:20px 0 0;line-height:1.95;color:#b4c3da}
.trend-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{display:inline-flex;align-items:center;gap:7px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);padding:8px 14px;border-radius:999px;font-size:.85rem;color:#c8d5ea;transition:all .2s}
.tag:hover{border-color:var(--brand);color:#fff;background:rgba(245,196,77,.1)}
.tag i{color:var(--brand)}
.trend-list{display:flex;flex-direction:column;gap:18px}
.rank-item{display:grid;grid-template-columns:70px 170px 1fr auto;align-items:center;gap:24px;background:rgba(13,21,42,.88);border:1px solid rgba(255,255,255,.1);border-radius:22px;padding:16px 20px;backdrop-filter:blur(12px);transition:all .28s}
.rank-item:hover{border-color:rgba(245,196,77,.4);transform:translateY(-5px);box-shadow:var(--glow)}
.rank-num{font-size:2.35rem;font-weight:900;letter-spacing:-.04em;color:rgba(245,196,77,.3);text-shadow:0 0 18px rgba(245,196,77,.2);line-height:1}
.rank-cover{border-radius:16px;overflow:hidden;aspect-ratio:16/10}
.rank-cover img{width:100%;height:100%;object-fit:cover}
.rank-info h3{font-size:1.04rem;font-weight:800;margin-bottom:5px}
.rank-info p{color:#8fa1bc;font-size:.83rem;line-height:1.6;max-width:420px}
.rank-stat{text-align:right;display:flex;flex-direction:column;gap:8px;align-items:flex-end}
.rank-rate{display:inline-flex;gap:6px;align-items:center;font-size:.85rem;color:#d1a94f;font-weight:700}
.rank-rate i{font-size:.78rem}
.badge{font-size:.7rem;font-weight:700;border:1px solid rgba(103,224,163,.4);background:rgba(103,224,163,.16);color:var(--ok);border-radius:999px;padding:4px 10px;letter-spacing:.04em}

/* ===== 流程 ===== */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.step-card{position:relative;background:rgba(18,27,52,.7);border:1px solid rgba(255,255,255,.09);border-radius:26px;padding:38px 28px 32px;text-align:center;overflow:hidden;transition:all .3s}
.step-card::before{content:"0" counter(step);counter-increment:step;position:absolute;top:10px;right:24px;font-size:4.4rem;font-weight:900;color:rgba(255,255,255,.03);line-height:1;letter-spacing:-.05em}
.step-card:hover{transform:translateY(-7px);border-color:rgba(245,196,77,.27)}
.step-icon{width:62px;height:62px;border-radius:20px;display:inline-flex;align-items:center;justify-content:center;font-size:1.6rem;color:var(--brand);background:linear-gradient(150deg,rgba(245,196,77,.18),rgba(255,255,255,.05));border:1px solid rgba(245,196,77,.2);margin-bottom:18px}
.step-card h3{font-size:1.16rem;font-weight:800;margin-bottom:10px}
.step-card p{color:#97a9c2;font-size:.89rem;line-height:1.8}
.step-card .step-line{font-size:.9rem;color:var(--brand);font-weight:700}

/* ===== 亮点优势 ===== */
.feature-banner{background:linear-gradient(120deg,rgba(245,196,77,.08),rgba(87,214,240,.05)),url('/assets/images/backpic/back-3.png') center center/cover no-repeat;border-top:1px solid rgba(255,255,255,.05)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature-item{background:rgba(15,24,46,.75);border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:24px 20px;backdrop-filter:blur(10px);transition:all .25s}
.feature-item:hover{border-color:rgba(245,196,77,.3);transform:translateY(-4px)}
.feature-icon{width:46px;height:46px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;background:rgba(245,196,77,.14);color:var(--brand);font-size:1.1rem;margin-bottom:15px}
.feature-item h3{font-size:.98rem;font-weight:800;margin-bottom:8px}
.feature-item p{color:#93a5c0;font-size:.82rem;line-height:1.7}

/* ===== FAQ ===== */
.faq-wrap{max-width:920px;margin:0 auto}
.faq-item{border:1px solid rgba(255,255,255,.1);border-radius:18px;background:rgba(16,25,47,.6);margin-bottom:13px;overflow:hidden;transition:all .2s}
.faq-item:hover{border-color:rgba(245,196,77,.25)}
.faq-item[open]{background:rgba(20,31,59,.74)}
.faq-item summary{cursor:pointer;display:flex;align-items:center;gap:16px;padding:19px 22px;list-style:none;font-weight:700;font-size:.98rem;line-height:1.5}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item .faq-qmark{width:26px;height:26px;flex:none;border-radius:9px;background:rgba(245,196,77,.17);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:.8rem}
.faq-item .faq-arrow{margin-left:auto;color:var(--brand);transition:transform .25s;font-size:.9rem;flex:none}
.faq-item[open] .faq-arrow{transform:rotate(180deg)}
.faq-item .faq-answer{padding:0 24px 22px 64px;color:#c0cee2;font-size:.92rem;line-height:1.9}

/* ===== CTA ===== */
.cta-section{overflow:hidden;padding:90px 0 110px;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;position:relative}
.cta-section::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(6,9,18,.9),rgba(8,15,30,.75))}
.cta-card{position:relative;z-index:2;text-align:center}
.cta-card h2{font-size:clamp(2rem,4vw,3rem);font-weight:900;line-height:1.25;letter-spacing:-.03em;margin-bottom:18px}
.cta-card p{color:#c8d5e8;max-width:620px;margin:0 auto 30px;font-size:1.04rem;line-height:1.9}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .hero-content{grid-template-columns:1fr;gap:40px;padding:90px 0 60px}
  .hero-mini-card{max-width:560px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .trend-content{grid-template-columns:1fr;gap:32px}
  .rank-item{grid-template-columns:60px 140px 1fr auto;gap:18px;padding:14px 16px}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .dock{flex-wrap:nowrap;padding:9px 12px;border-radius:20px}
  .logo-text{font-size:1.02rem}
  .main-nav ul{gap:2px;justify-content:flex-start}
  .nav-link{padding:8px 11px;font-size:.86rem}
  .nav-link i{font-size:.78rem}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-stats{width:100%;flex-wrap:wrap}
  .hero-stats .stat-item{padding:8px 16px}
  .hero-stats .stat-item:first-child{padding-left:0}
  .steps-grid{grid-template-columns:1fr}
  .rank-item{grid-template-columns:1fr;gap:14px;text-align:left}
  .rank-cover{max-width:230px}
  .rank-stat{align-items:flex-start;flex-direction:row}
  .faq-item .faq-answer{padding-left:22px}
}
@media(max-width:520px){
  .container{width:min(100% - 30px,1200px)}
  .site-header{padding:0 10px;top:10px}
  .logo-icon{width:32px;height:32px;font-size:.9rem;border-radius:10px}
  .logo-text{max-width:110px;overflow:hidden;text-overflow:ellipsis;font-size:.94rem}
  .logo{flex:none}
  .main-nav{overflow-x:auto}
  .card-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;text-align:center}
  .hero-copy h1{font-size:2.4rem}
  .hero-actions .btn{width:100%}
  .hero-stats{flex-wrap:nowrap;flex-direction:column;gap:12px;width:100%}
  .hero-stats .stat-item + .stat-item{border-left:0;border-top:1px solid rgba(255,255,255,.12);padding-left:0;padding-top:10px}
  .hero-stats .stat-item{padding:6px 0}
  .section-head h2{font-size:1.7rem}
  .rank-cover{max-width:100%;aspect-ratio:16/8}
  .cta-card p{padding:0 20px}
  .cta-actions .btn{width:calc(50% - 8px);flex:1}
}