/* 菠萝视频 - 工业复古Loft风格主样式表 */
/* Industrial Retro Loft Style - Main Stylesheet */

:root {
  --color-bg: #1a1a1a;
  --color-bg2: #222222;
  --color-bg3: #2a2a2a;
  --color-rust: #8b3a1e;
  --color-rust-light: #c0522a;
  --color-brick: #7a3b2e;
  --color-metal: #4a4a4a;
  --color-metal-light: #6a6a6a;
  --color-gold: #b8860b;
  --color-gold-light: #d4a017;
  --color-wood: #5c3d1e;
  --color-concrete: #3d3d3d;
  --color-text: #e8e0d0;
  --color-text-muted: #a09880;
  --color-accent: #c0522a;
  --color-border: #3a3a3a;
  --font-title: 'Georgia', 'STSong', serif;
  --font-body: 'Arial', 'Microsoft YaHei', sans-serif;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== 工业纹理背景 ===== */
.texture-concrete {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='0.08'/%3E%3C/svg%3E");
}

/* ===== 导航栏 ===== */
.nav-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(20, 18, 16, 0.96);
  border-bottom: 2px solid var(--color-rust);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.6);
}

.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.nav-logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-rust), var(--color-gold));
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  letter-spacing: -1px;
  border: 1px solid var(--color-gold);
  box-shadow: 0 0 12px rgba(192,82,42,0.4);
}

.nav-logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 2px;
  font-family: var(--font-title);
}

.nav-logo-text span {
  color: var(--color-rust-light);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 4px;
}

.nav-menu a {
  display: block;
  padding: 8px 14px;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 1px;
  border-radius: 3px;
  transition: var(--transition);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 14px;
  right: 14px;
  height: 1px;
  background: var(--color-rust-light);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-text);
  background: rgba(192,82,42,0.12);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  transform: scaleX(1);
}

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}

/* ===== 搜索框 ===== */
.search-bar-wrapper {
  background: var(--color-bg2);
  border-bottom: 1px solid var(--color-border);
  padding: 10px 0;
}

.search-bar-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: center;
}

.search-form {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 680px;
  background: var(--color-bg3);
  border: 1px solid var(--color-metal);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color 0.3s;
}

.search-form:focus-within {
  border-color: var(--color-rust-light);
  box-shadow: 0 0 0 2px rgba(192,82,42,0.15);
}

.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 10px 16px;
  color: var(--color-text);
  font-size: 14px;
  font-family: var(--font-body);
}

.search-input::placeholder {
  color: var(--color-text-muted);
}

.search-btn {
  background: var(--color-rust);
  border: none;
  padding: 10px 20px;
  color: #fff;
  cursor: pointer;
  font-size: 14px;
  letter-spacing: 1px;
  transition: background 0.3s;
}

.search-btn:hover {
  background: var(--color-rust-light);
}

/* ===== Hero Banner ===== */
.hero-section {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 108px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: brightness(0.45);
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero-bg.loaded {
  transform: scale(1);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(26,18,10,0.7) 0%,
    rgba(139,58,30,0.2) 50%,
    rgba(26,18,10,0.8) 100%
  );
}

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

.hero-badge {
  display: inline-block;
  background: rgba(192,82,42,0.2);
  border: 1px solid var(--color-rust-light);
  color: var(--color-rust-light);
  padding: 5px 16px;
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 20px;
  border-radius: 2px;
}

.hero-title {
  font-size: clamp(36px, 6vw, 72px);
  font-family: var(--font-title);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.8);
  letter-spacing: 2px;
}

.hero-title .brand {
  color: var(--color-rust-light);
  display: block;
}

.hero-subtitle {
  font-size: clamp(14px, 2vw, 18px);
  color: var(--color-text-muted);
  margin-bottom: 36px;
  letter-spacing: 1px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-block;
  padding: 14px 36px;
  background: var(--color-rust);
  color: #fff;
  text-decoration: none;
  font-size: 15px;
  letter-spacing: 2px;
  border-radius: 3px;
  border: 1px solid var(--color-rust-light);
  transition: var(--transition);
  font-weight: 600;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--color-rust-light);
  box-shadow: 0 4px 20px rgba(192,82,42,0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-block;
  padding: 14px 36px;
  background: transparent;
  color: var(--color-text);
  text-decoration: none;
  font-size: 15px;
  letter-spacing: 2px;
  border-radius: 3px;
  border: 1px solid var(--color-metal-light);
  transition: var(--transition);
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--color-rust-light);
  color: var(--color-rust-light);
  transform: translateY(-2px);
}

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

.section-alt {
  background: var(--color-bg2);
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.section-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-rust-light);
  margin-bottom: 12px;
  padding: 4px 12px;
  border: 1px solid rgba(192,82,42,0.3);
  border-radius: 2px;
}

.section-title {
  font-size: clamp(24px, 4vw, 40px);
  font-family: var(--font-title);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

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

.video-card {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.video-card:hover {
  border-color: var(--color-rust);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-metal);
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, filter 0.3s ease;
  loading: lazy;
}

.video-card:hover .video-thumb img {
  transform: scale(1.05);
  filter: brightness(0.7);
}

/* 金属光泽反射效果 */
.video-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    transparent 30%,
    rgba(255,255,255,0.04) 50%,
    transparent 70%
  );
  z-index: 1;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.video-card:hover .video-thumb::before {
  opacity: 1;
  animation: metalSheen 0.6s ease forwards;
}

/* 锈迹颗粒抖动效果 */
.video-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='rust'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0.3 0 0 0 0.5 0 0.1 0 0 0.1 0 0 0.05 0 0 0 0 0 0.12 0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23rust)'/%3E%3C/svg%3E");
  z-index: 2;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.video-card:hover .video-thumb::after {
  opacity: 1;
  animation: rustShake 0.4s ease;
}

@keyframes metalSheen {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes rustShake {
  0%, 100% { transform: translate(0, 0); }
  20% { transform: translate(-1px, 1px); }
  40% { transform: translate(1px, -1px); }
  60% { transform: translate(-1px, 0); }
  80% { transform: translate(1px, 1px); }
}

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 56px;
  height: 56px;
  background: rgba(192,82,42,0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  opacity: 0;
  transition: all 0.3s ease;
  border: 2px solid rgba(255,255,255,0.3);
}

.play-btn::after {
  content: '';
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 16px solid #fff;
  margin-left: 4px;
}

.video-card:hover .play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 2px;
  z-index: 3;
}

.video-info {
  padding: 16px;
}

.video-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-muted);
}

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

.video-tag {
  display: inline-block;
  background: rgba(192,82,42,0.15);
  color: var(--color-rust-light);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 2px;
  margin-top: 8px;
  border: 1px solid rgba(192,82,42,0.2);
}

/* ===== 品牌故事 ===== */
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.story-img {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.story-img img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
}

.story-img::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(26,18,10,0.7));
  z-index: 1;
}

.story-content h2 {
  font-size: 32px;
  font-family: var(--font-title);
  color: var(--color-text);
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.story-content p {
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 16px;
}

.story-content .highlight {
  color: var(--color-rust-light);
  font-style: italic;
  font-size: 18px;
  border-left: 3px solid var(--color-rust);
  padding-left: 16px;
  margin: 24px 0;
}

/* ===== 影像作品墙 ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.gallery-item:first-child {
  grid-column: span 2;
  aspect-ratio: 16/9;
}

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

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-item::after {
  content: attr(data-title);
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  color: #fff;
  padding: 20px 12px 10px;
  font-size: 13px;
  opacity: 0;
  transition: opacity 0.3s;
}

.gallery-item:hover::after {
  opacity: 1;
}

/* ===== AI工坊 ===== */
.ai-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.ai-tool-card {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 28px 24px;
  transition: var(--transition);
}

.ai-tool-card:hover {
  border-color: var(--color-rust);
  background: rgba(192,82,42,0.05);
  transform: translateY(-3px);
}

.ai-tool-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--color-rust), var(--color-gold));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
}

.ai-tool-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.ai-tool-card p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== 达人展示 ===== */
.creator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

.creator-card {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  text-align: center;
  transition: var(--transition);
}

.creator-card:hover {
  border-color: var(--color-rust);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}

.creator-avatar {
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
}

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

.creator-card:hover .creator-avatar img {
  transform: scale(1.08);
}

.creator-info {
  padding: 16px;
}

.creator-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.creator-role {
  font-size: 12px;
  color: var(--color-rust-light);
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.creator-stats {
  display: flex;
  justify-content: center;
  gap: 16px;
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ===== 用户评价 ===== */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.review-card {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 24px;
  position: relative;
  transition: var(--transition);
}

.review-card:hover {
  border-color: var(--color-rust);
}

.review-card::before {
  content: '"';
  position: absolute;
  top: 12px;
  right: 20px;
  font-size: 60px;
  color: rgba(192,82,42,0.15);
  font-family: Georgia, serif;
  line-height: 1;
}

.review-stars {
  color: var(--color-gold-light);
  font-size: 14px;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 10px;
}

.review-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-rust);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.review-author-info strong {
  display: block;
  font-size: 13px;
  color: var(--color-text);
}

.review-author-info span {
  font-size: 11px;
  color: var(--color-text-muted);
}

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

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 4px;
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color 0.3s;
}

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

.faq-question {
  padding: 18px 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 15px;
  color: var(--color-text);
  font-weight: 500;
  background: var(--color-bg3);
  user-select: none;
  transition: background 0.3s;
}

.faq-question:hover {
  background: rgba(192,82,42,0.08);
}

.faq-icon {
  width: 20px;
  height: 20px;
  border: 1px solid var(--color-metal-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--color-rust-light);
  flex-shrink: 0;
  transition: transform 0.3s;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  border-color: var(--color-rust-light);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
  background: var(--color-bg2);
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 16px 20px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ===== 合作伙伴 ===== */
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}

.partner-item {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 16px 28px;
  font-size: 14px;
  color: var(--color-text-muted);
  letter-spacing: 2px;
  transition: var(--transition);
}

.partner-item:hover {
  border-color: var(--color-rust);
  color: var(--color-text);
}

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

.contact-card {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 28px;
  text-align: center;
}

.contact-icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.contact-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.contact-card p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== 页脚 ===== */
.footer {
  background: #111;
  border-top: 2px solid var(--color-rust);
  padding: 48px 0 24px;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.footer-brand h3 {
  font-size: 20px;
  font-family: var(--font-title);
  color: var(--color-text);
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

.footer-col h4 {
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-rust-light);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

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

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

.footer-col ul li a {
  font-size: 13px;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.3s;
}

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

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 12px;
  color: var(--color-text-muted);
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 32px;
  height: 32px;
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.footer-social a:hover {
  border-color: var(--color-rust);
  color: var(--color-rust-light);
}

/* ===== 内页 Banner ===== */
.page-banner {
  margin-top: 108px;
  padding: 80px 0;
  background: var(--color-bg2);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath d='M0 0h60v60H0z' fill='none'/%3E%3Ccircle cx='30' cy='30' r='1' fill='rgba(192,82,42,0.08)'/%3E%3C/svg%3E");
}

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

.page-banner h1 {
  font-size: clamp(28px, 5vw, 52px);
  font-family: var(--font-title);
  color: var(--color-text);
  margin-bottom: 12px;
  letter-spacing: 3px;
}

.page-banner p {
  font-size: 15px;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 16px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--color-rust-light);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* ===== 文章列表 ===== */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
  transition: var(--transition);
}

.article-card:hover {
  border-color: var(--color-rust);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}

.article-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
}

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

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

.article-body {
  padding: 20px;
}

.article-cat {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--color-rust-light);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.article-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-excerpt {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--color-text-muted);
}

.article-footer a {
  color: var(--color-rust-light);
  text-decoration: none;
  font-size: 13px;
}

/* ===== 统计数字 ===== */
.stats-bar {
  background: var(--color-rust);
  padding: 32px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item h3 {
  font-size: 36px;
  font-weight: 900;
  color: #fff;
  font-family: var(--font-title);
  margin-bottom: 4px;
}

.stat-item p {
  font-size: 13px;
  color: rgba(255,255,255,0.75);
  letter-spacing: 1px;
}

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

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(20,18,16,0.98);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--color-border);
  }
  .nav-menu.open {
    display: flex;
  }
  .nav-toggle {
    display: flex;
  }
  .hero-section {
    margin-top: 108px;
  }
  .video-grid {
    grid-template-columns: 1fr;
  }
  .gallery-grid {
    grid-template-columns: 1fr 1fr;
  }
  .gallery-item:first-child {
    grid-column: span 2;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .creator-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .hero-btns {
    flex-direction: column;
    align-items: center;
  }
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  .gallery-item:first-child {
    grid-column: span 1;
  }
  .creator-grid {
    grid-template-columns: 1fr;
  }
  .review-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== 懒加载淡入 ===== */
.lazy-img {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.lazy-img.loaded {
  opacity: 1;
}

/* ===== 滚动动画 ===== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 分隔线 ===== */
.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-rust), transparent);
  margin: 0;
}

/* ===== 标签 ===== */
.tag {
  display: inline-block;
  background: rgba(192,82,42,0.12);
  color: var(--color-rust-light);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 2px;
  border: 1px solid rgba(192,82,42,0.2);
  margin: 2px;
  letter-spacing: 1px;
}

/* ===== 加入仓库 ===== */
.join-section {
  background: linear-gradient(135deg, var(--color-bg2), var(--color-bg3));
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 48px;
  text-align: center;
  margin-top: 48px;
}

.join-section h2 {
  font-size: 28px;
  font-family: var(--font-title);
  color: var(--color-text);
  margin-bottom: 12px;
}

.join-section p {
  color: var(--color-text-muted);
  margin-bottom: 24px;
  font-size: 15px;
}

/* ===== 更新时间 ===== */
.update-time {
  font-size: 12px;
  color: var(--color-text-muted);
}