/* =============================================
   香蕉视频 官方网站 - 主样式表
   东方雅奢 · 静奢美学 · 留白艺术
   ============================================= */

/* ---- 基础重置 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg: #faf8f5;
  --color-bg-alt: #f4f1ec;
  --color-text: #2c2a27;
  --color-text-light: #6b6560;
  --color-text-muted: #9e9890;
  --color-accent: #b8a88a;
  --color-accent-dark: #8c7a5e;
  --color-line: #e0dbd2;
  --color-gold: #c9a96e;
  --color-dark: #1a1814;
  --font-serif: 'Noto Serif SC', 'Source Han Serif CN', 'STSong', Georgia, serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --max-width: 1200px;
  --section-padding: 100px 0;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

/* ---- 排版系统 ---- */
.section-label {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  display: block;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-dark);
  margin-bottom: 24px;
}

.section-subtitle {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 2;
  max-width: 600px;
}

.chapter-number {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  display: block;
  margin-bottom: 12px;
}

/* ---- 导航栏 ---- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-line);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

.site-logo {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  color: var(--color-dark);
  letter-spacing: 0.05em;
}

.site-logo span {
  color: var(--color-gold);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.site-nav a {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  position: relative;
  padding-bottom: 2px;
}

.site-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width 0.4s ease;
}

.site-nav a:hover, .site-nav a.active {
  color: var(--color-dark);
}

.site-nav a:hover::after, .site-nav a.active::after {
  width: 100%;
}

/* ---- 搜索框 ---- */
.search-bar-wrap {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-line);
  padding: 10px 0;
}

.search-bar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-bar-inner input {
  flex: 1;
  max-width: 480px;
  height: 36px;
  border: 1px solid var(--color-line);
  background: #fff;
  padding: 0 16px;
  font-size: 13px;
  font-family: var(--font-sans);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.3s;
}

.search-bar-inner input:focus {
  border-color: var(--color-accent);
}

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

.search-bar-inner button {
  height: 36px;
  padding: 0 20px;
  background: var(--color-dark);
  color: #fff;
  border: none;
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background 0.3s;
}

.search-bar-inner button:hover {
  background: var(--color-accent-dark);
}

.search-hint {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ---- 汉堡菜单 ---- */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--color-dark);
  transition: var(--transition);
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(26, 24, 20, 0.55) 0%,
    rgba(26, 24, 20, 0.2) 60%,
    transparent 100%
  );
}

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

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
  padding-top: 130px;
}

.hero-year {
  font-size: 11px;
  letter-spacing: 0.4em;
  color: rgba(255,255,255,0.6);
  margin-bottom: 24px;
  display: block;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 400;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 20px;
  max-width: 700px;
}

.hero-title em {
  font-style: normal;
  color: var(--color-gold);
}

.hero-tagline {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
  line-height: 2;
  max-width: 480px;
  margin-bottom: 48px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 36px;
  border: 1px solid rgba(255,255,255,0.6);
  color: #fff;
  font-size: 13px;
  letter-spacing: 0.15em;
  transition: var(--transition);
}

.hero-cta:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}

.hero-cta::after {
  content: '→';
  transition: transform 0.3s;
}

.hero-cta:hover::after {
  transform: translateX(4px);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 10px;
  letter-spacing: 0.3em;
  animation: scrollBounce 2s infinite;
}

.hero-scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ---- 品牌关键词条幅 ---- */
.keywords-band {
  background: var(--color-dark);
  padding: 18px 0;
  overflow: hidden;
}

.keywords-track {
  display: flex;
  gap: 60px;
  animation: marquee 20s linear infinite;
  white-space: nowrap;
}

.keywords-track span {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.4);
  flex-shrink: 0;
}

.keywords-track span.highlight {
  color: var(--color-gold);
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---- 品牌序章 ---- */
.chapter-section {
  padding: var(--section-padding);
}

.chapter-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.chapter-layout.reverse {
  direction: rtl;
}

.chapter-layout.reverse > * {
  direction: ltr;
}

.chapter-text {
  padding: 40px 0;
}

.chapter-quote {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--color-accent-dark);
  line-height: 1.8;
  border-left: 2px solid var(--color-gold);
  padding-left: 24px;
  margin: 32px 0;
  font-style: italic;
}

.chapter-body {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 2.2;
}

.chapter-image {
  position: relative;
  overflow: hidden;
}

.chapter-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.chapter-image:hover img {
  transform: scale(1.03);
}

.chapter-image-caption {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: rgba(250,248,245,0.9);
  padding: 8px 16px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

/* ---- 品牌理念 ---- */
.philosophy-section {
  background: var(--color-bg-alt);
  padding: var(--section-padding);
}

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-line);
  margin-top: 60px;
}

.philosophy-item {
  background: var(--color-bg-alt);
  padding: 48px 40px;
  transition: background 0.4s;
}

.philosophy-item:hover {
  background: #fff;
}

.philosophy-number {
  font-size: 40px;
  font-family: var(--font-serif);
  color: var(--color-line);
  display: block;
  margin-bottom: 20px;
  line-height: 1;
}

.philosophy-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.philosophy-text {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 2;
}

/* ---- 视频区域 ---- */
.video-section {
  padding: var(--section-padding);
}

.video-section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
}

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

.video-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: var(--color-dark);
}

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

.video-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease, filter 0.4s ease;
}

.video-card:hover .video-card-thumb img {
  transform: scale(1.06);
  filter: brightness(0.7);
}

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 2;
}

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

.video-play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 9px 0 9px 16px;
  border-color: transparent transparent transparent var(--color-dark);
  margin-left: 4px;
}

.video-card-meta {
  padding: 20px;
  background: #fff;
}

.video-card-category {
  font-size: 10px;
  letter-spacing: 0.25em;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.video-card-title {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 400;
  color: var(--color-dark);
  margin-bottom: 12px;
  line-height: 1.5;
}

.video-card-stats {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--color-text-muted);
}

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

/* ---- 品牌臻选 ---- */
.selection-section {
  background: var(--color-bg-alt);
  padding: var(--section-padding);
}

.selection-featured {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 60px;
}

.selection-featured-image {
  position: relative;
  overflow: hidden;
}

.selection-featured-image img {
  width: 100%;
  height: 560px;
  object-fit: cover;
  transition: transform 0.8s ease;
}

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

.selection-featured-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0;
}

.tag {
  padding: 4px 14px;
  border: 1px solid var(--color-line);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

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

.selection-item {
  overflow: hidden;
}

.selection-item-image {
  overflow: hidden;
  aspect-ratio: 4/3;
}

.selection-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.selection-item-info {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
}

.selection-item-name {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 400;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.selection-item-desc {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.9;
}

/* ---- 品牌工艺 ---- */
.craft-section {
  padding: var(--section-padding);
}

.craft-timeline {
  margin-top: 60px;
  position: relative;
}

.craft-timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-line);
  transform: translateX(-50%);
}

.craft-step {
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  gap: 0;
  margin-bottom: 60px;
  align-items: center;
}

.craft-step:nth-child(odd) .craft-step-content {
  text-align: right;
  padding-right: 48px;
}

.craft-step:nth-child(even) .craft-step-content {
  grid-column: 3;
  padding-left: 48px;
}

.craft-step:nth-child(even) .craft-step-number {
  grid-column: 2;
  grid-row: 1;
}

.craft-step:nth-child(even) .craft-step-empty {
  grid-column: 1;
  grid-row: 1;
}

.craft-step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-gold);
  background: var(--color-bg);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.craft-step-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.craft-step-text {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 2;
}

/* ---- 品牌画报 ---- */
.editorial-section {
  background: var(--color-bg-alt);
  padding: var(--section-padding);
}

.editorial-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
  margin-top: 48px;
}

.editorial-card {
  position: relative;
  overflow: hidden;
  display: block;
}

.editorial-card.featured {
  grid-row: span 2;
}

.editorial-card-image {
  overflow: hidden;
}

.editorial-card.featured .editorial-card-image {
  height: 600px;
}

.editorial-card:not(.featured) .editorial-card-image {
  height: 280px;
}

.editorial-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

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

.editorial-card-info {
  padding: 24px 0;
}

.editorial-card-cat {
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.editorial-card-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  color: var(--color-dark);
  line-height: 1.5;
  margin-bottom: 10px;
}

.editorial-card.featured .editorial-card-title {
  font-size: 26px;
}

.editorial-card-excerpt {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 2;
}

/* ---- 品牌共赏 ---- */
.reviews-section {
  padding: var(--section-padding);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin-top: 60px;
}

.review-item {
  padding: 40px;
  border: 1px solid var(--color-line);
  transition: border-color 0.4s, box-shadow 0.4s;
}

.review-item:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 40px rgba(0,0,0,0.04);
}

.review-quote {
  font-family: var(--font-serif);
  font-size: 36px;
  color: var(--color-line);
  line-height: 1;
  margin-bottom: 16px;
}

.review-text {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 2;
  margin-bottom: 24px;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.review-author-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-dark);
}

.review-author-role {
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

/* ---- FAQ ---- */
.faq-section {
  background: var(--color-bg-alt);
  padding: var(--section-padding);
}

.faq-list {
  margin-top: 48px;
  max-width: 800px;
}

.faq-item {
  border-bottom: 1px solid var(--color-line);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 400;
  color: var(--color-dark);
  transition: color 0.3s;
}

.faq-question:hover {
  color: var(--color-accent-dark);
}

.faq-toggle {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}

.faq-toggle::before,
.faq-toggle::after {
  content: '';
  position: absolute;
  background: var(--color-accent);
  transition: transform 0.4s;
}

.faq-toggle::before {
  width: 1px;
  height: 14px;
  top: 3px;
  left: 9px;
}

.faq-toggle::after {
  width: 14px;
  height: 1px;
  top: 9px;
  left: 3px;
}

.faq-item.open .faq-toggle::before {
  transform: rotate(90deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease, padding 0.3s;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding-bottom: 24px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 2.2;
}

/* ---- 品牌来访 ---- */
.visit-section {
  padding: var(--section-padding);
}

.visit-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.visit-info-title {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 400;
  color: var(--color-dark);
  margin-bottom: 24px;
}

.visit-info-item {
  display: flex;
  gap: 20px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-line);
}

.visit-info-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  min-width: 60px;
  padding-top: 2px;
}

.visit-info-value {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.9;
}

.visit-form {
  background: var(--color-bg-alt);
  padding: 48px;
}

.visit-form-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
  color: var(--color-dark);
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-line);
  background: #fff;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-accent);
}

.form-group textarea {
  height: 100px;
  resize: vertical;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: var(--color-dark);
  color: #fff;
  border: none;
  font-size: 13px;
  letter-spacing: 0.15em;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background 0.3s;
  margin-top: 8px;
}

.btn-submit:hover {
  background: var(--color-accent-dark);
}

/* ---- 页脚 ---- */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.5);
  padding: 60px 0 30px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 32px;
}

.footer-brand-name {
  font-family: var(--font-serif);
  font-size: 22px;
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand-desc {
  font-size: 13px;
  line-height: 2;
  margin-bottom: 24px;
}

.footer-qr-group {
  display: flex;
  gap: 20px;
}

.footer-qr-item {
  text-align: center;
}

.footer-qr-box {
  width: 72px;
  height: 72px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.footer-qr-box svg {
  width: 40px;
  height: 40px;
  opacity: 0.4;
}

.footer-qr-label {
  font-size: 10px;
  letter-spacing: 0.1em;
}

.footer-col-title {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  margin-bottom: 20px;
}

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

.footer-col ul li a {
  font-size: 13px;
  transition: color 0.3s;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copyright {
  font-size: 12px;
  line-height: 1.8;
}

.footer-copyright a {
  color: rgba(255,255,255,0.4);
}

.footer-copyright a:hover {
  color: var(--color-gold);
}

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  width: 32px;
  height: 32px;
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  transition: border-color 0.3s, color 0.3s;
}

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

/* ---- 动画 ---- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  .header-inner { padding: 0 24px; }
  .hero-content { padding: 0 24px; padding-top: 130px; }
  .chapter-layout { grid-template-columns: 1fr; gap: 40px; }
  .chapter-layout.reverse { direction: ltr; }
  .philosophy-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .selection-featured { grid-template-columns: 1fr; }
  .selection-grid { grid-template-columns: repeat(2, 1fr); }
  .editorial-grid { grid-template-columns: 1fr; }
  .editorial-card.featured { grid-row: span 1; }
  .editorial-card.featured .editorial-card-image { height: 360px; }
  .reviews-grid { grid-template-columns: 1fr; }
  .visit-layout { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .craft-timeline::before { display: none; }
  .craft-step { grid-template-columns: 60px 1fr; }
  .craft-step:nth-child(odd) .craft-step-content { text-align: left; padding-right: 0; padding-left: 24px; }
  .craft-step:nth-child(even) .craft-step-content { grid-column: 2; padding-left: 24px; }
  .craft-step:nth-child(even) .craft-step-number { grid-column: 1; }
  .craft-step:nth-child(even) .craft-step-empty { display: none; }
}

@media (max-width: 768px) {
  :root { --section-padding: 60px 0; }
  .site-nav { display: none; }
  .site-nav.open { display: flex; flex-direction: column; position: fixed; top: 70px; left: 0; right: 0; background: var(--color-bg); padding: 24px 40px; border-bottom: 1px solid var(--color-line); gap: 20px; }
  .menu-toggle { display: flex; }
  .hero-title { font-size: 36px; }
  .video-grid { grid-template-columns: 1fr; }
  .selection-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .search-bar-inner { padding: 0 24px; }
  .visit-form { padding: 32px 24px; }
}