/* =============================================
   51吃瓜 - 新中式国风美学 主样式
   ============================================= */

:root {
  --ink-black: #0d0d0d;
  --deep-black: #1a1a1a;
  --vermilion: #c0392b;
  --gold: #c9a84c;
  --gold-light: #e8c96a;
  --rice-white: #f5f0e8;
  --jade-green: #4a7c6f;
  --jade-light: #6aab9a;
  --gray-ink: #3a3a3a;
  --text-main: #2c2c2c;
  --text-sub: #666;
  --border-gold: rgba(201,168,76,0.3);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Noto Serif SC", "Source Han Serif CN", "STSong", "SimSun", serif;
  background: var(--ink-black);
  color: var(--rice-white);
  overflow-x: hidden;
  line-height: 1.8;
}

a { color: inherit; text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--gold); }

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

/* ---- 滚动条 ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--ink-black); }
::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 3px; }

/* =============================================
   顶部导航
   ============================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(13,13,13,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-gold);
  transition: all 0.3s;
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 2px;
}

.logo-mark {
  width: 40px; height: 40px;
  border: 2px solid var(--gold);
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  color: var(--gold);
  position: relative;
  overflow: hidden;
}

.logo-mark::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(201,168,76,0.2));
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 0;
}

.main-nav ul li a {
  display: block;
  padding: 0 16px;
  height: 64px;
  line-height: 64px;
  font-size: 0.9rem;
  letter-spacing: 1px;
  color: var(--rice-white);
  position: relative;
  transition: color 0.3s;
}

.main-nav ul li a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%; right: 50%;
  height: 2px;
  background: var(--gold);
  transition: left 0.3s, right 0.3s;
}

.main-nav ul li a:hover,
.main-nav ul li a.active {
  color: var(--gold);
}

.main-nav ul li a:hover::after,
.main-nav ul li a.active::after {
  left: 16px; right: 16px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--rice-white);
  transition: all 0.3s;
}

/* =============================================
   搜索框
   ============================================= */
.search-bar-wrap {
  background: rgba(26,26,26,0.95);
  border-bottom: 1px solid var(--border-gold);
  padding: 12px 0;
  margin-top: 64px;
}

.search-bar-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--border-gold);
  border-radius: 4px;
  background: rgba(255,255,255,0.04);
  overflow: hidden;
}

.search-bar-inner input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 10px 16px;
  color: var(--rice-white);
  font-family: inherit;
  font-size: 0.9rem;
  letter-spacing: 1px;
}

.search-bar-inner input::placeholder { color: rgba(245,240,232,0.4); }

.search-bar-inner button {
  background: var(--gold);
  border: none;
  padding: 10px 20px;
  color: var(--ink-black);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9rem;
  letter-spacing: 1px;
  transition: background 0.3s;
}

.search-bar-inner button:hover { background: var(--gold-light); }

/* =============================================
   首屏 Banner
   ============================================= */
.hero-section {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: brightness(0.55);
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero-section:hover .hero-bg { transform: scale(1.0); }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(13,13,13,0.3) 0%,
    rgba(13,13,13,0.1) 40%,
    rgba(13,13,13,0.6) 80%,
    rgba(13,13,13,0.95) 100%
  );
}

/* 水墨粒子动画 */
.ink-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.ink-particle {
  position: absolute;
  width: 3px; height: 3px;
  background: rgba(201,168,76,0.6);
  border-radius: 50%;
  animation: floatUp linear infinite;
}

@keyframes floatUp {
  0% { transform: translateY(100vh) translateX(0) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 0.5; }
  100% { transform: translateY(-20px) translateX(var(--drift)) scale(1.5); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 900px;
}

.hero-subtitle {
  font-size: 0.85rem;
  letter-spacing: 6px;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeInUp 1s 0.3s forwards;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--rice-white);
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
  margin-bottom: 16px;
  opacity: 0;
  animation: fadeInUp 1s 0.6s forwards;
}

.hero-title span { color: var(--gold); }

.hero-desc {
  font-size: 1rem;
  color: rgba(245,240,232,0.8);
  letter-spacing: 2px;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeInUp 1s 0.9s forwards;
}

.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 1s 1.2s forwards;
}

.btn-primary {
  padding: 14px 36px;
  background: var(--gold);
  color: var(--ink-black);
  font-family: inherit;
  font-size: 0.95rem;
  letter-spacing: 2px;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 30%, rgba(255,255,255,0.2));
  transform: translateX(-100%);
  transition: transform 0.4s;
}

.btn-primary:hover::before { transform: translateX(100%); }
.btn-primary:hover { background: var(--gold-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,168,76,0.4); }

.btn-outline {
  padding: 14px 36px;
  background: transparent;
  color: var(--rice-white);
  font-family: inherit;
  font-size: 0.95rem;
  letter-spacing: 2px;
  border: 1px solid rgba(245,240,232,0.5);
  cursor: pointer;
  transition: all 0.3s;
}

.btn-outline:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-2px); }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 装饰线 */
.deco-line {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  justify-content: center;
}

.deco-line::before,
.deco-line::after {
  content: '';
  flex: 1;
  max-width: 80px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold));
}

.deco-line::after {
  background: linear-gradient(to left, transparent, var(--gold));
}

.deco-line span {
  color: var(--gold);
  font-size: 1.2rem;
}

/* =============================================
   通用区块
   ============================================= */
.section {
  padding: 80px 0;
}

.section-alt {
  background: rgba(26,26,26,0.8);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 4px;
  color: var(--gold);
  border: 1px solid var(--border-gold);
  padding: 4px 16px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  color: var(--rice-white);
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.section-title span { color: var(--gold); }

.section-desc {
  font-size: 0.95rem;
  color: rgba(245,240,232,0.6);
  max-width: 600px;
  margin: 0 auto;
  letter-spacing: 1px;
}

/* =============================================
   视频卡片
   ============================================= */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.video-card {
  background: var(--deep-black);
  border: 1px solid var(--border-gold);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
  position: relative;
}

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(201,168,76,0.2);
}

.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.video-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.video-card:hover .video-thumb img { transform: scale(1.08); }

/* 水墨晕染悬停效果 */
.video-ink-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(13,13,13,0.0) 0%, rgba(13,13,13,0.7) 100%);
  opacity: 0;
  transition: opacity 0.4s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-card:hover .video-ink-overlay { opacity: 1; }

/* 鎏金光影效果 */
.video-ink-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(201,168,76,0.15) 0%,
    transparent 50%,
    rgba(201,168,76,0.1) 100%
  );
  animation: goldShimmer 2s ease-in-out infinite;
}

@keyframes goldShimmer {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.play-btn {
  width: 60px; height: 60px;
  border: 2px solid var(--gold);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--gold);
  font-size: 1.5rem;
  position: relative;
  z-index: 1;
  transition: all 0.3s;
  background: rgba(13,13,13,0.5);
}

.play-btn:hover {
  background: var(--gold);
  color: var(--ink-black);
  transform: scale(1.1);
}

.play-btn::after {
  content: '▶';
  margin-left: 4px;
}

.video-badge {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--vermilion);
  color: #fff;
  font-size: 0.7rem;
  padding: 2px 8px;
  letter-spacing: 1px;
}

.video-duration {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(13,13,13,0.8);
  color: var(--rice-white);
  font-size: 0.75rem;
  padding: 2px 6px;
}

.video-info {
  padding: 16px;
}

.video-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--rice-white);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  gap: 16px;
  font-size: 0.78rem;
  color: rgba(245,240,232,0.5);
}

.video-meta span { display: flex; align-items: center; gap: 4px; }

/* =============================================
   精选内容卡片
   ============================================= */
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.content-card {
  background: var(--deep-black);
  border: 1px solid var(--border-gold);
  overflow: hidden;
  transition: all 0.3s;
}

.content-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(201,168,76,0.15);
  border-color: var(--gold);
}

.card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

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

.card-body {
  padding: 20px;
}

.card-tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 2px;
  color: var(--gold);
  border: 1px solid var(--border-gold);
  padding: 2px 8px;
  margin-bottom: 10px;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--rice-white);
  margin-bottom: 8px;
  line-height: 1.6;
}

.card-excerpt {
  font-size: 0.85rem;
  color: rgba(245,240,232,0.55);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-stats {
  display: flex;
  gap: 12px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-gold);
  font-size: 0.75rem;
  color: rgba(245,240,232,0.4);
}

/* =============================================
   品牌故事
   ============================================= */
.story-section {
  position: relative;
  overflow: hidden;
}

.story-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.2);
}

.story-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.story-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  color: var(--rice-white);
  margin-bottom: 24px;
  line-height: 1.4;
}

.story-text h2 span { color: var(--gold); }

.story-text p {
  font-size: 0.95rem;
  color: rgba(245,240,232,0.75);
  line-height: 2;
  margin-bottom: 16px;
}

.story-quote {
  border-left: 3px solid var(--gold);
  padding-left: 20px;
  margin: 24px 0;
  font-size: 1.1rem;
  color: var(--gold-light);
  font-style: italic;
  letter-spacing: 1px;
}

.story-img {
  position: relative;
}

.story-img img {
  width: 100%;
  border: 1px solid var(--border-gold);
}

.story-img::before {
  content: '';
  position: absolute;
  top: -12px; left: -12px;
  right: 12px; bottom: 12px;
  border: 1px solid var(--border-gold);
  pointer-events: none;
}

/* =============================================
   AI 模块
   ============================================= */
.ai-section {
  background: linear-gradient(135deg, rgba(26,26,26,0.9) 0%, rgba(13,13,13,1) 100%);
  position: relative;
  overflow: hidden;
}

.ai-section::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse at 60% 50%, rgba(74,124,111,0.1) 0%, transparent 60%);
  pointer-events: none;
}

.ai-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.ai-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-gold);
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.ai-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  transform: scaleX(0);
  transition: transform 0.4s;
}

.ai-card:hover::before { transform: scaleX(1); }
.ai-card:hover { background: rgba(201,168,76,0.05); transform: translateY(-4px); }

.ai-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  color: var(--jade-light);
}

.ai-card h3 {
  font-size: 1.1rem;
  color: var(--rice-white);
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.ai-card p {
  font-size: 0.85rem;
  color: rgba(245,240,232,0.55);
  line-height: 1.8;
}

/* =============================================
   达人模块
   ============================================= */
.creator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 24px;
}

.creator-card {
  text-align: center;
  padding: 24px 16px;
  background: var(--deep-black);
  border: 1px solid var(--border-gold);
  transition: all 0.3s;
}

.creator-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
}

.creator-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
  border: 2px solid var(--gold);
  overflow: hidden;
}

.creator-avatar img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.creator-name {
  font-size: 1rem;
  color: var(--rice-white);
  margin-bottom: 4px;
}

.creator-role {
  font-size: 0.78rem;
  color: var(--gold);
  letter-spacing: 1px;
}

.creator-stats {
  margin-top: 12px;
  font-size: 0.75rem;
  color: rgba(245,240,232,0.4);
}

/* =============================================
   用户评价
   ============================================= */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--deep-black);
  border: 1px solid var(--border-gold);
  padding: 28px;
  position: relative;
  transition: all 0.3s;
}

.review-card:hover {
  border-color: var(--gold);
  box-shadow: 0 8px 32px rgba(201,168,76,0.1);
}

.review-card::before {
  content: '"';
  position: absolute;
  top: 16px; right: 20px;
  font-size: 4rem;
  color: rgba(201,168,76,0.15);
  font-family: serif;
  line-height: 1;
}

.review-stars {
  color: var(--gold);
  font-size: 0.85rem;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.9rem;
  color: rgba(245,240,232,0.75);
  line-height: 1.9;
  margin-bottom: 20px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--jade-green), var(--jade-light));
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  color: #fff;
  flex-shrink: 0;
}

.review-name {
  font-size: 0.9rem;
  color: var(--rice-white);
}

.review-date {
  font-size: 0.75rem;
  color: rgba(245,240,232,0.4);
}

/* =============================================
   合作伙伴
   ============================================= */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.partner-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-gold);
  padding: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(245,240,232,0.5);
  transition: all 0.3s;
  letter-spacing: 1px;
}

.partner-item:hover {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(201,168,76,0.05);
}

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

.faq-item {
  border: 1px solid var(--border-gold);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s;
}

.faq-item.open { border-color: var(--gold); }

.faq-q {
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--rice-white);
  letter-spacing: 0.5px;
  transition: color 0.3s;
}

.faq-q:hover { color: var(--gold); }
.faq-item.open .faq-q { color: var(--gold); }

.faq-icon {
  width: 24px; height: 24px;
  border: 1px solid var(--border-gold);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
  transition: all 0.3s;
  color: var(--gold);
}

.faq-item.open .faq-icon { background: var(--gold); color: var(--ink-black); transform: rotate(45deg); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
  padding: 0 24px;
  font-size: 0.88rem;
  color: rgba(245,240,232,0.65);
  line-height: 1.9;
}

.faq-item.open .faq-a {
  max-height: 300px;
  padding: 0 24px 18px;
}

/* =============================================
   联系模块
   ============================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
}

.contact-item {
  text-align: center;
  padding: 32px 24px;
  background: var(--deep-black);
  border: 1px solid var(--border-gold);
  transition: all 0.3s;
}

.contact-item:hover { border-color: var(--gold); transform: translateY(-4px); }

.contact-icon {
  font-size: 2rem;
  color: var(--gold);
  margin-bottom: 16px;
}

.contact-item h3 {
  font-size: 1rem;
  color: var(--rice-white);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.contact-item p {
  font-size: 0.85rem;
  color: rgba(245,240,232,0.55);
  line-height: 1.8;
}

/* QR码占位 */
.qr-placeholder {
  width: 100px; height: 100px;
  background: rgba(255,255,255,0.05);
  border: 1px dashed var(--border-gold);
  margin: 16px auto 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
  color: rgba(245,240,232,0.3);
  letter-spacing: 1px;
}

/* =============================================
   页脚
   ============================================= */
.site-footer {
  background: rgba(10,10,10,0.98);
  border-top: 1px solid var(--border-gold);
  padding: 48px 0 24px;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  margin-bottom: 16px;
  font-size: 1.3rem;
}

.footer-brand p {
  font-size: 0.85rem;
  color: rgba(245,240,232,0.5);
  line-height: 1.9;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.9rem;
  color: var(--gold);
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; }

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 0.83rem;
  color: rgba(245,240,232,0.5);
  transition: color 0.3s;
}

.footer-col ul li a:hover { color: var(--gold); }

.footer-bottom {
  border-top: 1px solid var(--border-gold);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.78rem;
  color: rgba(245,240,232,0.35);
}

.footer-bottom a { color: rgba(245,240,232,0.35); }
.footer-bottom a:hover { color: var(--gold); }

/* =============================================
   内页 Banner
   ============================================= */
.page-banner {
  height: 320px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 64px;
}

.page-banner-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.35);
}

.page-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(13,13,13,0.4), rgba(13,13,13,0.7));
}

.page-banner-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.page-banner-content h1 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--rice-white);
  letter-spacing: 4px;
  margin-bottom: 12px;
}

.page-banner-content h1 span { color: var(--gold); }

.breadcrumb {
  font-size: 0.82rem;
  color: rgba(245,240,232,0.5);
  letter-spacing: 1px;
}

.breadcrumb a { color: var(--gold); }
.breadcrumb a:hover { text-decoration: underline; }

/* =============================================
   祥云纹装饰
   ============================================= */
.cloud-divider {
  text-align: center;
  padding: 24px 0;
  color: var(--border-gold);
  font-size: 1.5rem;
  letter-spacing: 8px;
  opacity: 0.6;
}

/* =============================================
   响应式
   ============================================= */
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .ai-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .story-content { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .main-nav.open { display: block; position: absolute; top: 64px; left: 0; right: 0; background: rgba(13,13,13,0.98); border-top: 1px solid var(--border-gold); }
  .main-nav.open ul { flex-direction: column; }
  .main-nav.open ul li a { height: auto; line-height: 1; padding: 14px 24px; border-bottom: 1px solid var(--border-gold); }
  .main-nav.open ul li a::after { display: none; }
  .nav-toggle { display: flex; }
  .hero-title { font-size: 2rem; }
  .footer-top { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .ai-grid { grid-template-columns: 1fr; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
}

@media (max-width: 480px) {
  .hero-btns { flex-direction: column; align-items: center; }
  .btn-primary, .btn-outline { width: 100%; max-width: 280px; }
  .video-grid { grid-template-columns: 1fr; }
  .content-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .creator-grid { grid-template-columns: repeat(2, 1fr); }
}