```css
@charset "UTF-8";

/* ==========================================================
   油管为媒 · 官宣天下
   youguanguanwang.net.cn | YouTube Official China
   Design Direction: Playful Paper Editorial
   Palette: Warm Cream / Coral Red / Deep Teal / Amber
   Style: Video-creator editorial with bold typography,
   marquee ticker, asymmetric corners, grain texture,
   play-button geometry, and video-card interactions.
========================================================== */

:root {
  --paper: #FFFDF8;
  --cream: #FFF6EC;
  --cream-deep: #FFEEDC;
  --coral: #FF3B30;
  --coral-deep: #D9291F;
  --teal: #0F8B8D;
  --teal-deep: #0C6B6C;
  --teal-light: #E6F4F4;
  --amber: #FFB703;
  --ink: #3D2B37;
  --muted: #8B7D86;
  --line: rgba(61, 43, 55, 0.08);
  --shadow-coral: 0 14px 36px rgba(255, 59, 48, 0.12);
  --shadow-teal: 0 12px 28px rgba(15, 139, 141, 0.12);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background: var(--cream);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Subtle paper grain overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.025;
  pointer-events: none;
  z-index: 10000;
}

::selection { background: var(--amber); color: var(--ink); }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--cream); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--coral), var(--amber));
  border-radius: 8px;
}

:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; }

/* ==========================================================
   Layout Shell
========================================================== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.section {
  padding: 96px 0;
  position: relative;
}

/* Mini progress-bar marker at the top of every section */
.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 5px;
  border-radius: 0 0 6px 6px;
  background: linear-gradient(90deg, var(--coral), var(--amber));
  opacity: 0.65;
}

.section:nth-child(even) { background: var(--cream-deep); }

/* ==========================================================
   Fixed Header
========================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 253, 248, 0.9);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.18rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px 5px 12px 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: var(--coral);
  color: #fff;
  box-shadow: 0 4px 14px rgba(255, 59, 48, 0.32);
  transform: rotate(-4deg);
  transition: transform 0.3s ease;
}

.logo:hover .logo-icon { transform: rotate(0deg) scale(1.06); }

.logo::after {
  content: '111209';
  font-size: 0.5rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--coral);
  background: var(--cream-deep);
  padding: 2px 8px;
  border-radius: 6px 2px 6px 2px;
  margin-left: 2px;
  transform: translateY(-4px);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink);
  padding: 4px 0;
  position: relative;
  transition: color 0.25s;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  border-radius: 3px;
  background: var(--coral);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.main-nav a:hover { color: var(--coral); }
.main-nav a:hover::after { transform: scaleX(1); }

.nav-cta {
  padding: 10px 22px;
  border-radius: 999px;
  background: var(--coral);
  color: #fff !important;
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(255, 59, 48, 0.28);
  transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav-cta::after { display: none; }

.nav-cta:hover {
  background: var(--coral-deep);
  color: #fff !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(255, 59, 48, 0.36);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--ink);
  border-radius: 12px 5px 12px 5px;
  transition: background 0.2s;
}

.menu-toggle:hover { background: var(--cream-deep); }

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  position: relative;
  transition: all 0.3s;
}

.menu-toggle span::before,
.menu-toggle span::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.3s;
}

.menu-toggle span::before { transform: translateY(-7px); }
.menu-toggle span::after { transform: translateY(7px); }

/* ==========================================================
   Hero
========================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 15% 25%, rgba(255, 183, 3, 0.14), transparent 38%),
    radial-gradient(ellipse at 85% 70%, rgba(15, 139, 141, 0.12), transparent 45%),
    linear-gradient(180deg, var(--paper), var(--cream));
}

/* Floating decorative play triangles */
.hero::before,
.hero::after {
  content: '';
  position: absolute;
  width: 0;
  height: 0;
  border-left: 34px solid var(--coral);
  border-top: 20px solid transparent;
  border-bottom: 20px solid transparent;
  opacity: 0.09;
  animation: floatDeco 5s ease-in-out infinite;
}

.hero::before {
  top: 18%;
  right: 8%;
  transform: rotate(18deg);
}

.hero::after {
  bottom: 14%;
  left: 4%;
  border-left-color: var(--teal);
  border-left-width: 46px;
  border-top-width: 28px;
  border-bottom-width: 28px;
  animation-delay: 1.6s;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content { max-width: 100%; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 999px;
  background: var(--amber);
  color: var(--ink);
  margin-bottom: 24px;
  box-shadow: 0 4px 0 rgba(255, 183, 3, 0.3);
}

.hero-eyebrow::before {
  content: '▶';
  font-size: 0.6rem;
}

.hero h1 {
  font-size: clamp(3rem, 5.5vw, 4.6rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: 22px;
  color: var(--ink);
}

.hero h1 .text-accent {
  display: inline-block;
  transform: rotate(-1deg);
}

.hero p {
  font-size: 1.12rem;
  line-height: 1.75;
  color: var(--muted);
  max-width: 520px;
  margin-bottom: 36px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero video card */
.hero-image {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: 36px 10px 36px 10px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--teal), var(--coral));
  box-shadow: 0 28px 60px rgba(255, 59, 48, 0.18), 0 8px 20px rgba(61, 43, 55, 0.08);
  transform: rotate(1.5deg);
  transition: transform 0.5s ease;
}

.hero-image:hover { transform: rotate(0deg) scale(1.01); }

.hero-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.hero-image:hover img { transform: scale(1.05); }

/* Centered play button */
.hero-image::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M8 5v14l11-7z' fill='%23FF3B30'/%3E%3C/svg%3E") center/34px no-repeat;
  box-shadow: 0 12px 40px rgba(255, 59, 48, 0.4);
  z-index: 2;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-image:hover::before {
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 16px 48px rgba(255, 59, 48, 0.5);
}

/* LIVE badge */
.hero-image::after {
  content: '◉ LIVE · 官宣时刻';
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: var(--coral);
  color: #fff;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 1px;
  z-index: 2;
  box-shadow: 0 4px 14px rgba(255, 59, 48, 0.4);
}

@keyframes floatDeco {
  0%, 100% { transform: translateY(0) rotate(18deg); }
  50% { transform: translateY(-14px) rotate(24deg); }
}

/* ==========================================================
   Buttons
========================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.92rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

.btn-primary {
  background: var(--coral);
  color: #fff;
  box-shadow: 0 6px 18px rgba(255, 59, 48, 0.28);
}

.btn-primary:hover {
  background: var(--coral-deep);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(255, 59, 48, 0.38);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--ink);
  color: var(--ink);
}

.btn-outline:hover {
  border-color: var(--teal);
  color: var(--teal);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(15, 139, 141, 0.12);
}

/* ==========================================================
   Section Labels & Titles
========================================================== */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 14px;
}

.section-label::before {
  content: '';
  width: 22px;
  height: 4px;
  border-radius: 4px;
  background: var(--coral);
}

.section-title {
  font-size: clamp(2rem, 3.6vw, 2.8rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 16px;
}

.section-desc {
  max-width: 620px;
  color: var(--muted);
  line-height: 1.75;
  font-size: 1.02rem;
  margin-bottom: 48px;
}

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

/* ==========================================================
   Cards Grid — Categories / Products
========================================================== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 28px;
  counter-reset: card;
}

.category-card {
  counter-increment: card;
  border-radius: 24px 8px 24px 8px;
  padding: 32px 28px;
  border: 1px solid var(--line);
  background: var(--paper);
  position: relative;
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Top progress line on hover */
.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 4px;
  width: 100%;
  background: linear-gradient(90deg, var(--coral), var(--amber));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
  z-index: 2;
}

.category-card:hover::before { transform: scaleX(1); }

/* Editorial auto-numbering */
.category-card::after {
  content: counter(card);
  position: absolute;
  top: 18px;
  right: 20px;
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(61, 43, 55, 0.14);
  z-index: 1;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-coral), 0 4px 12px rgba(61, 43, 55, 0.06);
  border-color: rgba(255, 59, 48, 0.16);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px 6px 16px 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: var(--teal-light);
  color: var(--teal);
  transition: all 0.3s ease;
}

.category-card:hover .card-icon {
  background: var(--coral);
  color: #fff;
  transform: rotate(-6deg) scale(1.06);
}

.card-link {
  font-weight: 800;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--coral);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  transition: gap 0.2s ease;
}

.card-link:hover { gap: 12px; }

/* ==========================================================
   Feature Block
========================================================== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-image {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: 14px 48px 14px 48px;
  overflow: hidden;
  background: linear-gradient(145deg, var(--amber), var(--coral));
  box-shadow: 0 20px 44px rgba(61, 43, 55, 0.12);
}

.feature-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.feature-image:hover img { transform: scale(1.04); }

.feature-image::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--coral), var(--amber));
  z-index: 2;
}

.feature-text .section-label { margin-bottom: 18px; }
.feature-text .section-title { font-size: clamp(1.6rem, 2.4vw, 2.2rem); }
.feature-text .section-desc { margin-bottom: 28px; }

.feature-list { list-style: none; }

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  color: var(--ink);
  font-size: 0.98rem;
}

.feature-list li::before {
  content: '▸';
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 8px 3px 8px 3px;
  background: var(--teal-light);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 900;
}

/* ==========================================================
   Stats Bar — Video Analytics
========================================================== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 36px 24px;
  border-radius: 10px 32px 10px 32px;
  border: 1px solid var(--line);
  background: var(--paper);
  position: relative;
  transition: all 0.3s ease;
}

.stat-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 5px;
  border-radius: 0 0 8px 8px;
  background: var(--amber);
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-teal);
  border-color: rgba(15, 139, 141, 0.22);
}

.stat-number {
  font-size: clamp(1.7rem, 2.8vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--coral);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--muted);
  margin-top: 8px;
  font-weight: 500;
}

/* ==========================================================
   Content Wall — Video Grid
========================================================== */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.content-wall-item {
  border-radius: 20px 7px 20px 7px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--paper);
  position: relative;
  transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.content-wall-item:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 16px 38px rgba(255, 59, 48, 0.13);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.content-wall-item:hover img { transform: scale(1.05); }

/* Play button revealed on hover */
.content-wall-item::before {
  content: '';
  position: absolute;
  top: 100px;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M8 5v14l11-7z' fill='%23FF3B30'/%3E%3C/svg%3E") center/24px no-repeat;
  box-shadow: 0 8px 24px rgba(255, 59, 48, 0.35);
  z-index: 2;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.content-wall-item:hover::before {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.05);
}

/* Duration badge */
.content-wall-item::after {
  content: '06:24';
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(61, 43, 55, 0.82);
  color: #fff;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  z-index: 2;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.content-wall-body { padding: 22px; }

.content-wall-body h3 {
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 8px;
  color: var(--ink);
}

.content-wall-body p {
  font-size: 0.87rem;
  color: var(--muted);
  line-height: 1.6;
}

/* Channel meta row */
.channel-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
}

.channel-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--amber), var(--coral));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  color: #fff;
  font-weight: 800;
}

/* ==========================================================
   FAQ
========================================================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 16px 6px 16px 6px;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: var(--paper);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item:hover { border-color: rgba(255, 59, 48, 0.2); }

.faq-item.open {
  border-color: rgba(255, 59, 48, 0.35);
  box-shadow: 0 8px 24px rgba(255, 59, 48, 0.06);
}

.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--ink);
}

.faq-item .faq-question::after {
  content: '+';
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--teal-light);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  transition: all 0.3s ease;
}

.faq-item.open .faq-question::after {
  content: '−';
  background: var(--coral);
  color: #fff;
  transform: rotate(180deg);
}

.faq-item .faq-answer {
  padding: 0 24px 22px;
  display: none;
  color: var(--muted);
  line-height: 1.75;
}

.faq-item.open .faq-answer {
  display: block;
  animation: fadeDown 0.3s ease;
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================
   CTA Banner
========================================================== */
.cta-banner {
  padding: 72px 32px;
  text-align: center;
  border-radius: 32px 12px 32px 12px;
  color: #fff;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(255, 255, 255, 0.18), transparent 40%),
    linear-gradient(120deg, var(--coral) 0%, #FF6B35 55%, var(--amber) 100%);
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 56px rgba(255, 59, 48, 0.25);
}

.cta-banner::before,
.cta-banner::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.cta-banner::before {
  width: 240px;
  height: 240px;
  top: -80px;
  right: -60px;
}

.cta-banner::after {
  width: 160px;
  height: 160px;
  bottom: -70px;
  left: -40px;
  background: rgba(0, 0, 0, 0.06);
}

.cta-banner h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 900;
  margin-bottom: 14px;
  color: #fff;
  position: relative;
  z-index: 2;
}

.cta-banner p {
  font-size: 1.05rem;
  opacity: 0.92;
  max-width: 520px;
  margin: 0 auto 32px;
  position: relative;
  z-index: 2;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--coral);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  position: relative;
  z-index: 2;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.2);
}

/* ==========================================================
   Footer
========================================================== */
.site-footer {
  padding: 72px 0 32px;
  background: linear-gradient(180deg, var(--paper), var(--cream-deep));
  border-top: 5px solid var(--coral);
  color: var(--muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand {
  font-weight: 900;
  font-size: 1.1rem;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-brand .logo-icon {
  width: 32px;
  height: 32px;
}

.footer-col {
  font-size: 0.9rem;
  line-height: 2.2;
}

.footer-col a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

.footer-col a:hover { color: var(--coral); }

.footer-col h4 {
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--ink);
  margin-bottom: 12px;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--muted);
}

/* Domain echo in footer */
.site-footer::after {
  content: 'youguanguanwang.net.cn';
  display: block;
  text-align: center;
  margin-top: 20px;
  font-weight: 900;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--coral);
  font-size: 0.78rem;
}

/* ==========================================================
   Marquee Ticker
========================================================== */
.ticker {
  background: var(--coral);
  color: #fff;
  padding: 14px 0;
  overflow: hidden;
  white-space: nowrap;
  position: relative;
}

.ticker::before {
  content: '油管为媒 ✦ 官宣天下 ✦ 油管为媒 ✦ 官宣天下 ✦ 油管为媒 ✦ 官宣天下 ✦ 油管为媒 ✦ 官宣天下 ✦ 油管为媒 ✦ 官宣天下 ✦ 油管为媒 ✦ 官宣天下 ✦ ';
  display: inline-block;
  white-space: nowrap;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 4px;
  animation: ticker 30s linear infinite;
}

.ticker-track {
  display: inline-block;
  white-space: nowrap;
  animation: ticker 30s linear infinite;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 4px;
}

.ticker-track span {
  margin: 0 40px;
  display: inline-block;
}

@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ==========================================================
   Utilities
========================================================== */
.text-accent {
  background: linear-gradient(180deg, transparent 55%, rgba(255, 183, 3, 0.55) 55%);
  padding: 0 0.1em;
  color: var(--ink);
  font-weight: 900;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  color: var(--muted);
  opacity: 1;
  text-align: center;
  line-height: 1.75;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ==========================================================
   Responsive — Tablet & Mobile
========================================================== */
@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero {
    min-height: auto;
    padding-top: 130px;
    text-align: center;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons { justify-content: center; }

  .hero-image {
    max-width: 480px;
    margin: 0 auto;
    transform: rotate(0deg);
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .feature-text { order: 2; }
  .feature-image { max-width: 480px; }
}

@media (max-width: 768px) {
  .feature-block { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  .main-nav {
    display: none;
  }

  .menu-toggle { display: flex; }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--paper);
    padding: 24px;
    gap: 20px;
    box-shadow: 0 20px 48px rgba(61, 43, 55, 0.12);
    border-bottom: 1px solid var(--line);
  }

  .main-nav.open .nav-cta { display: inline-block; text-align: center; }
  .main-nav.open a::after { display: none; }

  .section { padding: 72px 0; }

  .hero h1 {
    font-size: clamp(2.3rem, 8vw, 3.2rem);
  }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar { grid-template-columns: 1fr; }

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

  .hero-buttons { flex-direction: column; }

  .hero h1 { font-size: 2.3rem; }
  .hero { padding-top: 110px; }

  .section { padding: 56px 0; }

  .section-title { font-size: 1.7rem; }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .cta-banner { padding: 48px 20px; }
}

/* ==========================================================
   Accessibility — Reduced Motion
========================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html { scroll-behavior: auto; }
}