/* roulang page: index */
:root {
  --color-ink: #0F0E0C;
  --color-flame: #D99E3C;
  --color-flame-dark: #B97F2A;
  --color-ivory: #F6F2EA;
  --color-surface-dark: #1A1815;
  --color-surface: #FFFFFF;
  --color-text: #26221D;
  --color-text-light: #F0EBE2;
  --color-muted: #6E675F;
  --color-muted-dark: #9A918A;
  --color-border: rgba(18,16,13,0.12);
  --color-border-dark: rgba(255,255,255,0.10);
  --color-success: #2E8B5F;
  --color-error: #C0453A;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 8px rgba(18,16,13,0.04), 0 12px 32px rgba(18,16,13,0.06);
  --shadow-card-dark: 0 2px 8px rgba(0,0,0,0.30), 0 16px 40px rgba(0,0,0,0.40);
  --transition: 0.25s cubic-bezier(0.2, 0, 0, 1);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --container-w: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-ivory);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button { font-family: inherit; cursor: pointer; }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.row { max-width: var(--container-w); }

.section-padding { padding: 100px 0; }
@media (max-width: 768px) {
  .section-padding { padding: 56px 0; }
}

.overline {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-flame);
  margin-bottom: 12px;
  display: block;
}

.section-head {
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 750;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 12px;
}
.section-head p {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 680px;
  line-height: 1.75;
}

.section-head--light h2 { color: var(--color-text-light); }
.section-head--light p { color: var(--color-muted-dark); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  border: 1px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  text-align: center;
  letter-spacing: 0.01em;
}
.btn:focus-visible {
  outline: 2px solid var(--color-flame);
  outline-offset: 2px;
}
.btn:active { transform: translateY(1px); }

.btn-flame {
  background: var(--color-flame);
  color: #1A1000;
  box-shadow: 0 4px 20px rgba(217,158,60,0.30);
}
.btn-flame:hover {
  background: var(--color-flame-dark);
  color: #1A1000;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(217,158,60,0.38);
}

.btn-outline {
  border-color: rgba(240,235,226,0.5);
  color: var(--color-text-light);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--color-flame);
  color: var(--color-flame);
  transform: translateY(-2px);
}

.btn-outline-dark {
  border-color: rgba(18,16,13,0.25);
  color: var(--color-text);
  background: transparent;
}
.btn-outline-dark:hover {
  border-color: var(--color-flame);
  color: var(--color-flame-dark);
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15,14,12,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-dark);
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  max-width: var(--container-w);
  margin: 0 auto;
}

.brand-logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-text-light);
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.brand-logo span {
  color: var(--color-flame);
}

.header-search {
  flex: 0 1 420px;
  margin: 0 24px;
  position: relative;
}
.header-search input {
  width: 100%;
  height: 42px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-dark);
  background: rgba(255,255,255,0.08);
  color: var(--color-text-light);
  padding: 0 20px 0 44px;
  font-size: 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.header-search input::placeholder { color: var(--color-muted-dark); }
.header-search input:focus {
  border-color: var(--color-flame);
  box-shadow: 0 0 0 3px rgba(217,158,60,0.2);
  outline: none;
}
.header-search .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-muted-dark);
  font-size: 15px;
  pointer-events: none;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 14px;
}
.header-cta .btn {
  padding: 10px 24px;
  font-size: 14px;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border-dark);
  border-radius: 8px;
  padding: 8px 12px;
  color: var(--color-text-light);
  font-size: 18px;
}

/* Channel Nav */
.channel-nav {
  border-top: 1px solid rgba(255,255,255,0.06);
  background: rgba(15,14,12,0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.channel-tabs {
  list-style: none;
  display: flex;
  gap: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 0 24px;
  max-width: var(--container-w);
  margin: 0 auto;
}
.channel-tabs::-webkit-scrollbar { display: none; }
.channel-tabs li {
  flex-shrink: 0;
}
.channel-tabs a {
  display: block;
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-muted-dark);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color var(--transition), border-color var(--transition);
}
.channel-tabs a:hover {
  color: var(--color-text-light);
  border-bottom-color: var(--color-flame-dark);
}
.channel-tabs a.active {
  color: var(--color-flame);
  border-bottom-color: var(--color-flame);
}
.channel-tabs a .badge-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-flame);
  border-radius: 50%;
  margin-left: 6px;
  vertical-align: middle;
}

/* Mobile nav drawer */
.mobile-drawer {
  display: none;
  background: rgba(15,14,12,0.98);
  padding: 16px 24px 24px;
  border-top: 1px solid var(--color-border-dark);
}
.mobile-drawer.open { display: block; }
.mobile-drawer a {
  display: block;
  padding: 12px 0;
  color: var(--color-text-light);
  font-size: 16px;
  font-weight: 600;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.mobile-drawer a.active { color: var(--color-flame); }
.mobile-drawer a:last-child { border-bottom: none; }
.mobile-drawer .btn { margin-top: 12px; text-align: center; }

@media (max-width: 1024px) {
  .header-search { display: none; }
}
@media (max-width: 768px) {
  .header-top { padding: 10px 16px; }
  .brand-logo { font-size: 20px; }
  .header-cta .btn { display: none; }
  .menu-toggle { display: inline-flex; align-items: center; }
  .channel-tabs { padding: 0 16px; }
  .channel-tabs a { padding: 10px 14px; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  background: var(--color-ink);
  color: var(--color-text-light);
  overflow: hidden;
  min-height: 620px;
  display: flex;
  align-items: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center 60%;
  opacity: 0.6;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(15,14,12,0.94) 20%, rgba(15,14,12,0.72) 55%, rgba(15,14,12,0.45) 100%);
}
.hero-inner {
  position: relative;
  z-index: 1;
  padding: 80px 24px 60px;
  max-width: var(--container-w);
  margin: 0 auto;
  width: 100%;
}
.hero-content {
  max-width: 640px;
}
.hero-content .overline {
  color: var(--color-flame);
  font-size: 13px;
}
.hero-content h1 {
  font-size: clamp(32px, 5.2vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.hero-content h1 .accent {
  color: var(--color-flame);
}
.hero-desc {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(240,235,226,0.85);
  margin-bottom: 32px;
  max-width: 540px;
}

/* Group Progress */
.group-progress {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 32px;
  max-width: 540px;
}
.progress-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: 600;
}
.progress-meta .count { color: var(--color-flame); }
.progress-track {
  height: 8px;
  background: rgba(255,255,255,0.12);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 10px;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-flame-dark), var(--color-flame));
  border-radius: 99px;
  transition: width 1s ease-out;
}
.progress-hint {
  font-size: 13px;
  color: var(--color-muted-dark);
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

/* Hero Metrics */
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-border-dark);
  padding-top: 40px;
}
.metric-item {
  padding: 0 24px;
  border-left: 1px solid var(--color-border-dark);
}
.metric-item:first-child { padding-left: 0; border-left: none; }
.metric-num {
  font-size: 34px;
  font-weight: 800;
  color: var(--color-text-light);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.metric-num .unit {
  font-size: 16px;
  color: var(--color-flame);
  margin-left: 2px;
}
.metric-label {
  font-size: 13px;
  color: var(--color-muted-dark);
  margin-top: 6px;
}

@media (max-width: 768px) {
  .hero { min-height: auto; padding: 60px 0 40px; }
  .hero-inner { padding: 40px 16px 40px; }
  .hero-content h1 { font-size: 32px; }
  .hero-desc { font-size: 15px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-metrics { grid-template-columns: repeat(2, 1fr); gap: 20px 0; }
  .metric-item { padding: 0 16px; }
  .metric-item:nth-child(odd) { padding-left: 0; border-left: none; }
  .metric-item:nth-child(even) { border-left: 1px solid var(--color-border-dark); }
  .metric-num { font-size: 26px; }
}

/* ===== News / 资讯区 ===== */
.news-section {
  background: var(--color-ivory);
}
.news-section .section-head h2 { color: var(--color-text); }
.news-list {
  list-style: none;
}
.news-list li {
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  gap: 24px;
  transition: background var(--transition);
}
.news-list li:last-child { border-bottom: none; }
.news-list .news-time {
  flex-shrink: 0;
  width: 64px;
  font-size: 13px;
  color: var(--color-muted);
  padding-top: 4px;
  font-variant-numeric: tabular-nums;
}
.news-list .news-content { flex: 1; }
.news-list .news-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  transition: color var(--transition);
}
.news-list li:hover .news-title {
  color: var(--color-flame-dark);
}
.news-list .news-desc {
  font-size: 14px;
  color: var(--color-muted);
  margin-top: 4px;
  line-height: 1.6;
}

.news-sidebar {
  padding-left: 24px;
}
.side-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 28px;
  margin-bottom: 20px;
}
.side-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--color-text);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}
.side-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.side-tags a {
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text);
  transition: all var(--transition);
}
.side-tags a:hover {
  background: var(--color-flame);
  border-color: var(--color-flame);
  color: #1A1000;
}

.side-link-list {
  list-style: none;
}
.side-link-list li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--color-border);
}
.side-link-list li:last-child { border-bottom: none; }
.side-link-list a {
  font-size: 14px;
  color: var(--color-text);
  font-weight: 600;
}
.side-link-list a:hover { color: var(--color-flame-dark); }

@media (max-width: 768px) {
  .news-sidebar { padding-left: 0; margin-top: 32px; }
  .news-list li { flex-direction: column; gap: 8px; }
  .news-time { width: auto; }
}

/* ===== Services ===== */
.services-section {
  background: var(--color-surface);
  padding: 100px 0;
}
@media (max-width: 768px) {
  .services-section { padding: 56px 0; }
}
.service-card {
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  height: 100%;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(217,158,60,0.4);
  box-shadow: var(--shadow-card);
}
.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(217,158,60,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
  color: var(--color-flame-dark);
}
.service-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}
.service-card p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 16px;
}
.service-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-flame-dark);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.service-link .arrow {
  transition: transform var(--transition);
}
.service-card:hover .service-link .arrow {
  transform: translateX(4px);
}

@media (max-width: 768px) {
  .service-card { padding: 24px; }
}

/* ===== App / Multi-device ===== */
.app-section {
  background: var(--color-ink);
  color: var(--color-text-light);
  overflow: hidden;
}
.app-section .section-head h2 { color: var(--color-text-light); }
.app-section .section-head p { color: var(--color-muted-dark); }
.app-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}
.app-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: border-color var(--transition), background var(--transition);
}
.app-card:hover {
  border-color: rgba(217,158,60,0.3);
  background: rgba(255,255,255,0.06);
}
.app-card .dev-icon {
  font-size: 28px;
  margin-bottom: 14px;
  color: var(--color-flame);
}
.app-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text-light);
}
.app-card p {
  font-size: 14px;
  color: var(--color-muted-dark);
  line-height: 1.7;
}
.app-note {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--color-border-dark);
  font-size: 14px;
  color: var(--color-muted-dark);
}
.app-note a { color: var(--color-flame); font-weight: 600; }

@media (max-width: 768px) {
  .app-grid { grid-template-columns: 1fr; gap: 16px; }
}

/* ===== Comparison ===== */
.compare-section {
  background: var(--color-ivory);
}
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  margin-bottom: 40px;
}
.compare-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 36px;
  border-top: 3px solid transparent;
}
.compare-card--bad {
  border-top-color: #C0453A;
}
.compare-card--good {
  border-top-color: var(--color-flame);
}
.compare-card h3 {
  font-size: 20px;
  font-weight: 750;
  margin-bottom: 20px;
  color: var(--color-text);
}
.compare-list {
  list-style: none;
}
.compare-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
}
.compare-list .icon-x {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(192,69,58,0.12);
  color: #C0453A;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  margin-top: 4px;
}
.compare-list .icon-check {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(217,158,60,0.18);
  color: var(--color-flame-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  margin-top: 4px;
}
.compare-cta {
  text-align: center;
}

@media (max-width: 768px) {
  .compare-grid { grid-template-columns: 1fr; gap: 20px; }
  .compare-card { padding: 24px; }
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--color-surface);
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.faq-item:hover { border-color: rgba(217,158,60,0.35); }
.faq-item:last-child { margin-bottom: 0; }

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 22px 28px;
  text-align: left;
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--color-flame-dark); }
.faq-question:focus-visible { outline: 2px solid var(--color-flame); outline-offset: -2px; border-radius: var(--radius-md); }

.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(217,158,60,0.15);
  color: var(--color-flame-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 400;
  transition: transform 0.25s ease-out;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease-out;
}
.faq-answer-inner {
  padding: 0 28px 24px;
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.75;
}

/* ===== CTA Form ===== */
.cta-section {
  background: var(--color-ink);
  color: var(--color-text-light);
  position: relative;
  overflow: hidden;
}
.cta-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  z-index: 0;
}
.cta-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,14,12,0.92) 0%, rgba(15,14,12,0.85) 100%);
}
.cta-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.cta-left h2 {
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 750;
  line-height: 1.25;
  margin-bottom: 24px;
  color: var(--color-text-light);
}
.cta-benefits {
  list-style: none;
  margin-top: 20px;
}
.cta-benefits li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  font-size: 15px;
  color: rgba(240,235,226,0.85);
}
.cta-benefits .check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(217,158,60,0.2);
  color: var(--color-flame);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.cta-form-card {
  background: var(--color-surface-dark);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-dark);
  padding: 36px;
  box-shadow: var(--shadow-card-dark);
}
.cta-form-card .form-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-text-light);
}
.cta-form-card .form-subtitle {
  font-size: 14px;
  color: var(--color-muted-dark);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: rgba(240,235,226,0.7);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  height: 48px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  padding: 0 16px;
  font-size: 14px;
  color: var(--color-text-light);
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
}
.form-group textarea {
  height: auto;
  min-height: 96px;
  padding: 14px 16px;
  resize: vertical;
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%239A918A' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 36px;
}
.form-group select option {
  background: var(--color-surface-dark);
  color: var(--color-text-light);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-flame);
  box-shadow: 0 0 0 3px rgba(217,158,60,0.2);
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-muted-dark);
}
.form-error {
  font-size: 13px;
  color: var(--color-error);
  margin-top: 6px;
  display: none;
}
.form-group.has-error input,
.form-group.has-error textarea {
  border-color: var(--color-error);
}
.form-group.has-error .form-error { display: block; }
.form-note {
  font-size: 12px;
  color: var(--color-muted-dark);
  margin-top: 16px;
  text-align: center;
}

.form-success {
  display: none;
  text-align: center;
  padding: 24px 0;
}
.form-success .check-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(217,158,60,0.18);
  color: var(--color-flame);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin: 0 auto 16px;
}
.form-success h4 {
  font-size: 18px;
  color: var(--color-text-light);
  margin-bottom: 6px;
}
.form-success p {
  font-size: 14px;
  color: var(--color-muted-dark);
}

@media (max-width: 768px) {
  .cta-inner { grid-template-columns: 1fr; gap: 40px; }
  .cta-form-card { padding: 24px; }
}

/* ===== Footer ===== */
.site-footer {
  background: #0A0A09;
  color: var(--color-muted-dark);
  padding: 64px 0 32px;
  border-top: 1px solid var(--color-border-dark);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-top: 14px;
}
.footer-brand .brand-logo { font-size: 26px; }
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 16px;
}
.footer-links {
  list-style: none;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  font-size: 14px;
  color: var(--color-muted-dark);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--color-flame); }

.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ===== Scroll Animations ===== */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .fade-up { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ===== Foundation Override ===== */
.accordion-title { background: transparent !important; border: none !important; padding: 0; }
.accordion-title:hover, .accordion-title:focus { background: transparent !important; }
.accordion-content { background: transparent !important; border: none !important; padding: 0; }
.accordion { background: transparent !important; margin: 0 !important; }

/* Hide native accordion arrow */
.accordion-title::before { display: none !important; }

/* ===== Misc ===== */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(217,158,60,0.5), transparent);
  border: none;
  margin: 0;
}

/* roulang page: category1 */
/* ===== Design System ===== */
:root {
  --color-ink: #0F0E0C;
  --color-flame: #D99E3C;
  --color-flame-dark: #B97F2A;
  --color-ivory: #F6F2EA;
  --color-surface-dark: #1A1815;
  --color-surface: #FFFFFF;
  --color-text: #26221D;
  --color-text-light: #F0EBE2;
  --color-muted: #6E675F;
  --color-muted-dark: #9A918A;
  --color-border: rgba(18,16,13,0.12);
  --color-border-dark: rgba(255,255,255,0.10);
  --color-success: #2E8B5F;
  --color-error: #C0453A;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 8px rgba(18,16,13,0.04), 0 12px 32px rgba(18,16,13,0.06);
  --shadow-card-dark: 0 2px 8px rgba(0,0,0,0.30), 0 16px 40px rgba(0,0,0,0.40);
  --transition: 0.25s cubic-bezier(0.2, 0, 0, 1);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --container-w: 1200px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-ivory);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition), border-color var(--transition), background var(--transition); }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }
p { margin: 0 0 16px; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
.row { max-width: var(--container-w); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  border: 1px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  text-align: center;
  letter-spacing: 0.01em;
}
.btn:focus-visible {
  outline: 2px solid var(--color-flame);
  outline-offset: 2px;
}
.btn:active { transform: translateY(1px); }
.btn-flame {
  background: var(--color-flame);
  color: #1A1000;
  box-shadow: 0 4px 20px rgba(217,158,60,0.30);
}
.btn-flame:hover {
  background: var(--color-flame-dark);
  color: #1A1000;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(217,158,60,0.38);
}
.btn-outline {
  border-color: rgba(240,235,226,0.5);
  color: var(--color-text-light);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--color-flame);
  color: var(--color-flame);
  transform: translateY(-2px);
}
.btn-outline-dark {
  border-color: rgba(18,16,13,0.25);
  color: var(--color-text);
  background: transparent;
}
.btn-outline-dark:hover {
  border-color: var(--color-flame);
  color: var(--color-flame-dark);
}
.btn-sm {
  padding: 10px 20px;
  font-size: 13px;
}
.btn-block { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15,14,12,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-dark);
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  max-width: var(--container-w);
  margin: 0 auto;
}
.brand-logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-text-light);
  letter-spacing: -0.02em;
  white-space: nowrap;
  transition: color var(--transition);
}
.brand-logo:hover { color: var(--color-flame); }
.brand-logo span { color: var(--color-flame); }
.header-search {
  flex: 0 1 420px;
  margin: 0 24px;
  position: relative;
}
.header-search input {
  width: 100%;
  height: 42px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-dark);
  background: rgba(255,255,255,0.08);
  color: var(--color-text-light);
  padding: 0 20px 0 44px;
  font-size: 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
  font-family: var(--font-sans);
}
.header-search input::placeholder { color: var(--color-muted-dark); }
.header-search input:focus {
  border-color: var(--color-flame);
  box-shadow: 0 0 0 3px rgba(217,158,60,0.2);
  outline: none;
}
.header-search .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-muted-dark);
  font-size: 15px;
  pointer-events: none;
  font-style: normal;
}
.header-cta { display: flex; align-items: center; gap: 14px; }
.header-cta .btn { padding: 10px 24px; font-size: 14px; }
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border-dark);
  border-radius: 8px;
  padding: 8px 12px;
  color: var(--color-text-light);
  font-size: 18px;
  line-height: 1;
}

/* ===== Channel Nav ===== */
.channel-nav {
  border-top: 1px solid rgba(255,255,255,0.06);
  background: rgba(15,14,12,0.70);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.channel-tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.channel-tabs::-webkit-scrollbar { display: none; }
.channel-tabs a {
  display: block;
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-muted-dark);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color var(--transition), border-color var(--transition);
}
.channel-tabs a:hover {
  color: var(--color-text-light);
  border-bottom-color: var(--color-flame-dark);
}
.channel-tabs a.active {
  color: var(--color-flame);
  border-bottom-color: var(--color-flame);
}
.channel-tabs a .badge-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-flame);
  border-radius: 50%;
  margin-left: 6px;
  vertical-align: middle;
}

/* ===== Mobile Drawer ===== */
.mobile-drawer {
  display: none;
  background: rgba(15,14,12,0.98);
  padding: 16px 24px 24px;
  border-top: 1px solid var(--color-border-dark);
}
.mobile-drawer.open { display: block; }
.mobile-drawer a {
  display: block;
  padding: 12px 0;
  color: var(--color-text-light);
  font-size: 16px;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border-dark);
}
.mobile-drawer a:last-child { border-bottom: none; }
.mobile-drawer a:hover { color: var(--color-flame); }
.mobile-drawer a.active { color: var(--color-flame); }

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 18px 0;
  background: var(--color-ivory);
  border-bottom: 1px solid var(--color-border);
}
.breadcrumb ul {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-muted);
}
.breadcrumb ul li { display: flex; align-items: center; gap: 8px; }
.breadcrumb ul li + li::before {
  content: "/";
  color: var(--color-muted);
  font-size: 13px;
}
.breadcrumb ul li a:hover { color: var(--color-flame-dark); }
.breadcrumb ul li.current { color: var(--color-text); font-weight: 600; }

/* ===== Category Hero ===== */
.category-hero {
  position: relative;
  min-height: 360px;
  display: flex;
  align-items: center;
  background: var(--color-ink);
  overflow: hidden;
}
.category-hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
  opacity: 0.45;
}
.category-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(15,14,12,0.95) 0%, rgba(15,14,12,0.72) 45%, rgba(15,14,12,0.30) 100%);
}
.category-hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 0;
}
.category-hero-content .hero-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-flame);
  background: rgba(217,158,60,0.15);
  border: 1px solid rgba(217,158,60,0.3);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  margin-bottom: 20px;
}
.category-hero-content h1 {
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-light);
  margin-bottom: 18px;
  max-width: 660px;
}
.category-hero-content h1 .text-flame { color: var(--color-flame); }
.category-hero-content p {
  font-size: 16px;
  color: var(--color-muted-dark);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 28px;
}
.hero-cta-group {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* Hero Faux Rank Panel */
.hero-rank-panel {
  position: relative;
  z-index: 2;
  background: rgba(26,24,21,0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card-dark);
}
.hero-rank-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.hero-rank-header .rank-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-light);
}
.hero-rank-header .rank-update {
  font-size: 12px;
  color: var(--color-muted-dark);
}
.hero-rank-list { display: flex; flex-direction: column; gap: 16px; }
.hero-rank-item {
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-rank-item .rank-num {
  font-size: 22px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--color-muted-dark);
  width: 28px;
  text-align: center;
  font-family: var(--font-sans);
}
.hero-rank-item:nth-child(1) .rank-num { color: var(--color-flame); }
.hero-rank-item:nth-child(2) .rank-num { color: var(--color-flame); }
.hero-rank-item:nth-child(3) .rank-num { color: var(--color-flame); }
.hero-rank-item .rank-info { flex: 1; min-width: 0; }
.hero-rank-item .rank-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-light);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hero-rank-item .rank-meta {
  font-size: 12px;
  color: var(--color-muted-dark);
}
.hero-rank-item .rank-tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-flame);
  background: rgba(217,158,60,0.15);
  border-radius: var(--radius-pill);
  padding: 2px 10px;
  white-space: nowrap;
}

/* ===== Filter Bar ===== */
.filter-bar-wrap {
  position: sticky;
  top: 92px;
  z-index: 80;
  background: rgba(246,242,234,0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 0;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.filter-bar::-webkit-scrollbar { display: none; }
.filter-pill {
  display: inline-block;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  white-space: nowrap;
  transition: all var(--transition);
}
.filter-pill:hover {
  color: var(--color-flame-dark);
  border-color: var(--color-flame);
}
.filter-pill.active {
  background: var(--color-ink);
  color: var(--color-flame);
  border-color: var(--color-ink);
}
.filter-sort {
  margin-left: auto;
  font-size: 13px;
  color: var(--color-muted);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ===== Content Section ===== */
.video-library-section {
  padding: 60px 0 80px;
  background: var(--color-ivory);
}

/* Feature Card */
.feature-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  display: flex;
  margin-bottom: 32px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(18,16,13,0.08), 0 18px 40px rgba(18,16,13,0.10);
  border-color: rgba(217,158,60,0.4);
}
.feature-card .feature-media {
  flex: 1 1 50%;
  position: relative;
  min-height: 280px;
  overflow: hidden;
}
.feature-card .feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}
.feature-card .feature-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15,14,12,0.45) 0%, transparent 60%);
}
.play-badge {
  position: absolute;
  left: 16px;
  bottom: 16px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(15,14,12,0.7);
  border: 1px solid rgba(255,255,255,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 14px;
  z-index: 2;
  backdrop-filter: blur(4px);
  transition: background var(--transition), transform var(--transition);
}
.feature-card:hover .play-badge {
  background: var(--color-flame);
  color: #1A1000;
  transform: scale(1.08);
}
.duration-badge {
  position: absolute;
  right: 16px;
  bottom: 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-light);
  background: rgba(15,14,12,0.72);
  border-radius: var(--radius-pill);
  padding: 4px 10px;
  z-index: 2;
  backdrop-filter: blur(4px);
}
.feature-card .feature-body {
  flex: 1 1 50%;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.feature-card .tag-row {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text);
  background: #EFEBE3;
  border-radius: var(--radius-pill);
  padding: 4px 12px;
  letter-spacing: 0.02em;
}
.tag-hot {
  background: rgba(217,158,60,0.18);
  color: #8A5A12;
}
.feature-card h3 {
  font-size: 22px;
  font-weight: 750;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-muted);
  margin-bottom: 18px;
}
.feature-meta {
  display: flex;
  gap: 18px;
  font-size: 13px;
  color: var(--color-muted);
  margin-top: auto;
}
.feature-meta span { display: inline-flex; align-items: center; gap: 6px; }

/* Small Cards Row */
.small-cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}
.collection-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.collection-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(18,16,13,0.08), 0 16px 36px rgba(18,16,13,0.10);
  border-color: rgba(217,158,60,0.35);
}
.collection-card .card-media {
  position: relative;
  height: 150px;
  overflow: hidden;
}
.collection-card .card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.collection-card:hover .card-media img { transform: scale(1.05); }
.collection-card .card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15,14,12,0.35) 0%, transparent 55%);
}
.collection-card .card-body { padding: 18px 20px 20px; }
.collection-card .card-body h4 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 8px;
  color: var(--color-text);
}
.collection-card .card-body p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.collection-card .card-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.mini-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-ivory);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
  transition: background var(--transition), color var(--transition);
}
.collection-card:hover .mini-tag {
  background: rgba(217,158,60,0.14);
  color: #8A5A12;
}
.play-badge-small {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(15,14,12,0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 12px;
  z-index: 2;
  backdrop-filter: blur(4px);
  transition: background var(--transition), color var(--transition);
}
.collection-card:hover .play-badge-small {
  background: var(--color-flame);
  color: #1A1000;
}

/* Horizontal List Cards */
.horizontal-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 36px;
}
.horizontal-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 16px;
  box-shadow: 0 2px 6px rgba(18,16,13,0.03);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.horizontal-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
  border-color: rgba(217,158,60,0.30);
}
.horizontal-item .item-thumb {
  flex: 0 0 120px;
  height: 80px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
}
.horizontal-item .item-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.horizontal-item .item-thumb .play-badge-xs {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15,14,12,0.25);
  color: var(--color-text-light);
  font-size: 12px;
  transition: background var(--transition);
}
.horizontal-item:hover .item-thumb .play-badge-xs { background: rgba(15,14,12,0.45); }
.horizontal-item .item-body {
  flex: 1;
  min-width: 0;
}
.horizontal-item .item-body h5 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition);
}
.horizontal-item:hover .item-body h5 { color: var(--color-flame-dark); }
.horizontal-item .item-body p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.5;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.horizontal-item .item-time {
  font-size: 12px;
  color: var(--color-muted);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ===== Sidebar ===== */
.sidebar-widget {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  padding: 24px;
  margin-bottom: 24px;
}
.widget-title {
  font-size: 17px;
  font-weight: 750;
  color: var(--color-text);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.widget-title .widget-more {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-muted);
  transition: color var(--transition);
}
.widget-title .widget-more:hover { color: var(--color-flame-dark); }

/* TOP5 */
.top-channel-list { display: flex; flex-direction: column; gap: 16px; }
.top-channel-item {
  display: flex;
  align-items: center;
  gap: 14px;
}
.top-channel-item .top-num {
  font-size: 24px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--color-border);
  width: 28px;
  text-align: center;
  font-family: var(--font-sans);
  line-height: 1;
}
.top-channel-item:nth-child(1) .top-num,
.top-channel-item:nth-child(2) .top-num,
.top-channel-item:nth-child(3) .top-num {
  color: var(--color-flame);
}
.top-channel-info { flex: 1; min-width: 0; }
.top-channel-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.heat-bar {
  height: 4px;
  border-radius: var(--radius-pill);
  background: var(--color-ivory);
  overflow: hidden;
}
.heat-bar .heat-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-flame-dark), var(--color-flame));
  transition: width 0.6s ease-out;
}
.top-channel-count {
  font-size: 12px;
  color: var(--color-muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* Month Hot Rank */
.hot-rank-list { display: flex; flex-direction: column; }
.hot-rank-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition), padding var(--transition);
}
.hot-rank-item:last-child { border-bottom: none; }
.hot-rank-item:hover { background: rgba(246,242,234,0.6); padding-left: 8px; }
.hot-rank-item .hot-index {
  font-size: 22px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--color-border);
  width: 32px;
  text-align: center;
  font-family: var(--font-sans);
  line-height: 1;
}
.hot-rank-item:nth-child(1) .hot-index,
.hot-rank-item:nth-child(2) .hot-index,
.hot-rank-item:nth-child(3) .hot-index {
  color: var(--color-flame);
}
.hot-rank-item .hot-info { flex: 1; min-width: 0; }
.hot-rank-item .hot-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition);
}
.hot-rank-item:hover .hot-name { color: var(--color-flame-dark); }
.hot-rank-item .hot-cat {
  font-size: 12px;
  color: var(--color-muted);
}
.hot-rank-item .hot-score {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-flame-dark);
  font-variant-numeric: tabular-nums;
}

/* Subscribe CTA Card */
.subscribe-card {
  background: var(--color-surface-dark);
  border-radius: var(--radius-md);
  padding: 28px;
  color: var(--color-text-light);
  box-shadow: var(--shadow-card-dark);
  border: 1px solid var(--color-border-dark);
}
.subscribe-card h4 {
  font-size: 18px;
  font-weight: 750;
  color: var(--color-text-light);
  margin-bottom: 10px;
}
.subscribe-card p {
  font-size: 14px;
  color: var(--color-muted-dark);
  line-height: 1.6;
  margin-bottom: 18px;
}
.subscribe-card .btn { width: 100%; }

/* ===== Pagination ===== */
.pagination-wrap {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}
.pagination {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--color-surface);
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  padding: 6px;
  box-shadow: var(--shadow-card);
}
.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-muted);
  transition: all var(--transition);
}
.page-link:hover {
  color: var(--color-flame-dark);
  background: var(--color-ivory);
}
.page-link.active {
  background: var(--color-ink);
  color: var(--color-flame);
}
.page-link.prev,
.page-link.next {
  color: var(--color-text);
}

/* ===== Bottom CTA ===== */
.section-bottom-cta {
  background: var(--color-ink);
  padding: 56px 0;
  border-top: 1px solid var(--color-border-dark);
}
.bottom-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.bottom-cta-inner h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 750;
  color: var(--color-text-light);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.bottom-cta-inner p {
  font-size: 15px;
  color: var(--color-muted-dark);
  margin-bottom: 0;
}
.bottom-cta-inner .btn-flame { flex-shrink: 0; }

/* ===== Footer ===== */
.site-footer {
  background: #0B0A09;
  color: var(--color-muted-dark);
  padding: 64px 0 0;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .brand-logo { font-size: 26px; margin-bottom: 14px; display: inline-block; }
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-muted-dark);
  margin-bottom: 0;
}
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 16px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 14px;
  color: var(--color-muted-dark);
  transition: color var(--transition), padding-left var(--transition);
}
.footer-links a:hover { color: var(--color-flame); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--color-muted);
}
.footer-bottom span { line-height: 1.5; }

/* ===== Animations ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-fade-up {
  opacity: 0;
  animation: fadeUp 0.6s ease-out forwards;
}
.hero-fade-up.delay-1 { animation-delay: 0.1s; }
.hero-fade-up.delay-2 { animation-delay: 0.2s; }
.hero-fade-up.delay-3 { animation-delay: 0.3s; }
.hero-fade-up.delay-4 { animation-delay: 0.4s; }

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
  .header-search { flex: 0 1 280px; }
  .feature-card { flex-direction: column; }
  .feature-card .feature-media { min-height: 220px; position: relative; flex: none; }
  .feature-card .feature-media img { position: absolute; }
  .small-cards-row { grid-template-columns: repeat(3, 1fr); gap: 16px; }
}

@media screen and (max-width: 768px) {
  .section-padding { padding: 64px 0; }
  .header-top { padding: 10px 16px; }
  .header-search { display: none; }
  .header-cta .btn-flame { display: none; }
  .menu-toggle { display: inline-flex; align-items: center; gap: 8px; }
  .channel-nav { display: none; }
  .mobile-drawer { display: none; }
  .mobile-drawer.open { display: block; }
  .breadcrumb { padding: 14px 0; }
  .category-hero { min-height: auto; }
  .category-hero-content { padding: 48px 0 56px; }
  .category-hero-content h1 { font-size: 32px; }
  .hero-rank-panel { margin-top: 28px; }
  .filter-bar-wrap { top: 60px; }
  .small-cards-row { grid-template-columns: 1fr; }
  .feature-card .feature-body { padding: 24px; }
  .horizontal-item { flex-direction: row; padding: 14px; }
  .horizontal-item .item-thumb { flex: 0 0 100px; height: 70px; }
  .horizontal-item .item-body h5 { font-size: 14px; }
  .horizontal-item .item-body p { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .bottom-cta-inner { flex-direction: column; align-items: flex-start; }
}

@media screen and (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-top { padding: 10px 16px; }
  .brand-logo { font-size: 20px; }
  .category-hero-content h1 { font-size: 28px; }
  .category-hero-content p { font-size: 14px; }
  .hero-cta-group .btn { width: 100%; }
  .feature-card h3 { font-size: 19px; }
  .feature-meta { gap: 10px; flex-wrap: wrap; }
  .horizontal-item .item-thumb { flex: 0 0 80px; height: 64px; }
  .horizontal-item .item-time { font-size: 11px; }
  .pagination { flex-wrap: wrap; justify-content: center; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}