/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #8B1A1A;
  --color-primary-dark: #6B1010;
  --color-primary-light: #A52A2A;
  --color-accent: #C9A84C;
  --color-accent-light: #DFC26E;
  --color-accent-dark: #A88A2E;
  --color-bg: #FAFAFA;
  --color-bg-alt: #F5F0EB;
  --color-bg-dark: #1A1A2E;
  --color-text: #2D2D2D;
  --color-text-light: #6B6B6B;
  --color-text-inverse: #FFFFFF;
  --color-border: #E5DDD5;
  --color-border-light: #F0EBE5;
  --color-success: #3A8B5E;
  --color-error: #C0392B;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.16);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { font-family: var(--font-sans); color: var(--color-text); background: var(--color-bg); line-height: 1.7; font-size: 16px; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover, a:focus { color: var(--color-primary-dark); }
a:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
ul, ol { list-style: none; }
input, button, textarea, select { font-family: inherit; font-size: inherit; }
button { cursor: pointer; border: none; background: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--color-text); }

/* ===== 容器 ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-sm); width: 100%; }
@media screen and (min-width: 768px) { .container { padding: 0 var(--spacing-md); } }
@media screen and (min-width: 1024px) { .container { padding: 0 var(--spacing-md); } }

/* ===== 导航 ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.96); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  transition: background var(--transition), box-shadow var(--transition);
  height: 72px;
}
.site-header.scrolled { box-shadow: var(--shadow-md); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-sm);
}
@media screen and (min-width: 768px) { .header-inner { padding: 0 var(--spacing-md); } }
.site-logo { display: flex; align-items: center; gap: 10px; font-size: 1.4rem; font-weight: 800; color: var(--color-primary); letter-spacing: 0.5px; }
.site-logo i { font-size: 1.6rem; color: var(--color-accent); }
.site-logo:hover { color: var(--color-primary-dark); }
.nav-main { display: flex; align-items: center; gap: var(--spacing-xs); }
.nav-main a {
  padding: 0.5rem 1.2rem; border-radius: var(--radius-sm);
  font-size: 0.95rem; font-weight: 500; color: var(--color-text-light);
  transition: all var(--transition); position: relative;
}
.nav-main a:hover { color: var(--color-primary); background: rgba(139,26,26,0.06); }
.nav-main a.active { color: var(--color-primary); background: rgba(139,26,26,0.08); font-weight: 600; }
.nav-main a.active::after { content: ''; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%); width: 60%; height: 2px; background: var(--color-primary); border-radius: 2px; }
.nav-toggle { display: none; font-size: 1.5rem; color: var(--color-text); padding: 0.25rem; }
@media screen and (max-width: 767px) {
  .nav-toggle { display: block; }
  .nav-main { position: fixed; top: 72px; left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(12px); flex-direction: column; padding: var(--spacing-sm); gap: 0.25rem; border-bottom: 1px solid var(--color-border); transform: translateY(-120%); opacity: 0; pointer-events: none; transition: all var(--transition); }
  .nav-main.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-main a { width: 100%; text-align: center; padding: 0.75rem 1rem; }
}

/* ===== Hero ===== */
.hero-section {
  position: relative; min-height: 92vh; display: flex; align-items: center;
  margin-top: 72px; overflow: hidden;
  background: linear-gradient(135deg, rgba(26,26,46,0.85) 0%, rgba(139,26,26,0.70) 100%);
}
.hero-bg {
  position: absolute; inset: 0; z-index: -1;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center; background-repeat: no-repeat;
  transform: scale(1.05); transition: transform 12s ease;
}
.hero-section:hover .hero-bg { transform: scale(1.0); }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(26,26,46,0.82) 0%, rgba(139,26,26,0.65) 100%); z-index: 0; }
.hero-content { position: relative; z-index: 1; padding: var(--spacing-lg) 0; text-align: center; }
.hero-content h1 { font-size: 3.2rem; font-weight: 800; color: var(--color-text-inverse); margin-bottom: 1.2rem; letter-spacing: 1px; line-height: 1.2; }
.hero-content h1 span { color: var(--color-accent); }
.hero-content p { font-size: 1.2rem; color: rgba(255,255,255,0.85); max-width: 680px; margin: 0 auto 2rem; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }
.btn { display: inline-flex; align-items: center; gap: 0.6rem; padding: 0.9rem 2.2rem; border-radius: var(--radius-md); font-weight: 600; font-size: 1rem; transition: all var(--transition); border: 2px solid transparent; }
.btn-primary { background: var(--color-primary); color: var(--color-text-inverse); border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(139,26,26,0.3); color: #fff; }
.btn-accent { background: var(--color-accent); color: var(--color-text); border-color: var(--color-accent); }
.btn-accent:hover { background: var(--color-accent-light); border-color: var(--color-accent-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,168,76,0.3); color: var(--color-text); }
.btn-outline { background: transparent; color: var(--color-text-inverse); border-color: rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: var(--color-text-inverse); transform: translateY(-2px); color: #fff; }
.btn-sm { padding: 0.6rem 1.4rem; font-size: 0.9rem; border-radius: var(--radius-sm); }
.hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; background: rgba(255,255,255,0.12); backdrop-filter: blur(6px); padding: 0.4rem 1.2rem; border-radius: 50px; font-size: 0.85rem; color: rgba(255,255,255,0.9); margin-bottom: 1.5rem; }
.hero-badge i { color: var(--color-accent); }
@media screen and (max-width: 767px) {
  .hero-content h1 { font-size: 2rem; }
  .hero-content p { font-size: 1rem; }
  .hero-section { min-height: 80vh; }
  .hero-content { padding: var(--spacing-md) 0; }
}

/* ===== 板块通用 ===== */
.section { padding: var(--spacing-xl) 0; }
.section-alt { background: var(--color-bg-alt); }
.section-dark { background: var(--color-bg-dark); color: var(--color-text-inverse); }
.section-dark h2, .section-dark h3, .section-dark .section-subtitle { color: var(--color-text-inverse); }
.section-header { text-align: center; margin-bottom: var(--spacing-lg); }
.section-header h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 0.8rem; letter-spacing: 0.5px; }
.section-header .section-subtitle { font-size: 1.05rem; color: var(--color-text-light); max-width: 600px; margin: 0 auto; line-height: 1.7; }
.section-header .section-line { width: 60px; height: 3px; background: var(--color-accent); margin: 1rem auto 0; border-radius: 4px; }
.section-dark .section-subtitle { color: rgba(255,255,255,0.7); }
@media screen and (max-width: 767px) {
  .section { padding: var(--spacing-lg) 0; }
  .section-header h2 { font-size: 1.7rem; }
  .section-header { margin-bottom: var(--spacing-md); }
}

/* ===== 卡片 ===== */
.card { background: #fff; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: all var(--transition); border: 1px solid var(--color-border-light); }
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.card-img { width: 100%; height: 200px; object-fit: cover; }
.card-body { padding: 1.5rem; }
.card-body h3 { font-size: 1.15rem; margin-bottom: 0.5rem; font-weight: 700; }
.card-body p { font-size: 0.95rem; color: var(--color-text-light); line-height: 1.6; margin-bottom: 0; }
.card-tag { display: inline-block; padding: 0.2rem 0.8rem; border-radius: 50px; font-size: 0.75rem; font-weight: 600; background: rgba(139,26,26,0.08); color: var(--color-primary); margin-bottom: 0.6rem; }
.card-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--color-border-light); display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; color: var(--color-text-light); }
.card-footer a { font-weight: 600; color: var(--color-primary); }
.card-footer a:hover { color: var(--color-primary-dark); }
.card-grid { display: grid; gap: var(--spacing-md); }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }
@media screen and (max-width: 1023px) {
  .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media screen and (max-width: 767px) {
  .card-grid-3, .card-grid-2, .card-grid-4 { grid-template-columns: 1fr; }
}

/* ===== 特色/优势 ===== */
.feature-card { text-align: center; padding: 2rem 1.5rem; background: #fff; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); transition: all var(--transition); border: 1px solid var(--color-border-light); }
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-6px); }
.feature-icon { width: 64px; height: 64px; margin: 0 auto 1.2rem; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-md); font-size: 1.8rem; color: #fff; background: var(--color-primary); }
.feature-icon.gold { background: var(--color-accent); color: var(--color-text); }
.feature-icon.dark { background: var(--color-bg-dark); }
.feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.5rem; }
.feature-card p { font-size: 0.92rem; color: var(--color-text-light); line-height: 1.6; }

/* ===== 数据统计 ===== */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--spacing-md); }
.stat-item { text-align: center; padding: 1.5rem; }
.stat-number { font-size: 2.8rem; font-weight: 800; color: var(--color-accent); line-height: 1.2; }
.stat-label { font-size: 0.95rem; color: rgba(255,255,255,0.8); margin-top: 0.3rem; }
@media screen and (max-width: 767px) { .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--spacing-sm); } }

/* ===== 列表 ===== */
.content-list { display: flex; flex-direction: column; gap: 0.8rem; }
.content-list-item { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.2rem; background: #fff; border-radius: var(--radius-sm); box-shadow: var(--shadow-sm); transition: all var(--transition); border: 1px solid var(--color-border-light); }
.content-list-item:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
.content-list-item .list-index { width: 36px; height: 36px; border-radius: 50%; background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.9rem; flex-shrink: 0; }
.content-list-item .list-content { flex: 1; min-width: 0; }
.content-list-item .list-content h4 { font-size: 1rem; font-weight: 600; margin-bottom: 0.15rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.content-list-item .list-content p { font-size: 0.85rem; color: var(--color-text-light); margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.content-list-item .list-meta { font-size: 0.8rem; color: var(--color-text-light); white-space: nowrap; flex-shrink: 0; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 0.8rem; }
.faq-item { background: #fff; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--color-border-light); transition: all var(--transition); }
.faq-item:hover { box-shadow: var(--shadow-md); }
.faq-question { width: 100%; text-align: left; padding: 1.2rem 1.5rem; font-weight: 600; font-size: 1rem; color: var(--color-text); display: flex; align-items: center; justify-content: space-between; gap: 1rem; background: transparent; transition: background var(--transition); }
.faq-question:hover { background: rgba(139,26,26,0.03); }
.faq-question i { transition: transform var(--transition); color: var(--color-primary); font-size: 1.1rem; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.5s ease, padding 0.3s ease; padding: 0 1.5rem; }
.faq-item.open .faq-answer { max-height: 300px; padding: 0 1.5rem 1.2rem; }
.faq-answer p { font-size: 0.95rem; color: var(--color-text-light); line-height: 1.7; margin: 0; }

/* ===== CTA ===== */
.cta-section { background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%); text-align: center; padding: var(--spacing-xl) 0; }
.cta-section h2 { color: #fff; font-size: 2.2rem; font-weight: 800; margin-bottom: 0.8rem; }
.cta-section p { color: rgba(255,255,255,0.85); max-width: 600px; margin: 0 auto 2rem; font-size: 1.05rem; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }

/* ===== 页脚 ===== */
.site-footer { background: var(--color-bg-dark); color: rgba(255,255,255,0.7); padding: var(--spacing-lg) 0 var(--spacing-md); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--spacing-md); margin-bottom: var(--spacing-md); }
.footer-brand h3 { color: #fff; font-size: 1.4rem; font-weight: 800; margin-bottom: 0.8rem; display: flex; align-items: center; gap: 8px; }
.footer-brand h3 i { color: var(--color-accent); }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 1rem; }
.footer-col ul li { margin-bottom: 0.5rem; }
.footer-col ul li a { color: rgba(255,255,255,0.65); font-size: 0.9rem; transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--color-accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: var(--spacing-sm); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
.footer-bottom p { font-size: 0.85rem; margin: 0; }
.footer-socials { display: flex; gap: 0.8rem; }
.footer-socials a { color: rgba(255,255,255,0.5); font-size: 1.2rem; transition: color var(--transition); }
.footer-socials a:hover { color: var(--color-accent); }
@media screen and (max-width: 767px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ===== 文章/内容卡片垂直 ===== */
.post-card { display: flex; gap: 1.2rem; background: #fff; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: all var(--transition); border: 1px solid var(--color-border-light); }
.post-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.post-card-img { width: 200px; min-height: 150px; object-fit: cover; flex-shrink: 0; }
.post-card-body { padding: 1.2rem 1.2rem 1.2rem 0; flex: 1; display: flex; flex-direction: column; justify-content: center; }
.post-card-body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.4rem; }
.post-card-body h3 a { color: var(--color-text); }
.post-card-body h3 a:hover { color: var(--color-primary); }
.post-card-body p { font-size: 0.9rem; color: var(--color-text-light); line-height: 1.6; margin-bottom: 0.5rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-card-meta { display: flex; gap: 1rem; font-size: 0.8rem; color: var(--color-text-light); }
.post-card-meta span { display: flex; align-items: center; gap: 0.3rem; }
@media screen and (max-width: 767px) {
  .post-card { flex-direction: column; }
  .post-card-img { width: 100%; height: 180px; }
  .post-card-body { padding: 1rem; }
}

/* ===== 标签 ===== */
.tag { display: inline-block; padding: 0.25rem 0.9rem; border-radius: 50px; font-size: 0.78rem; font-weight: 600; background: rgba(139,26,26,0.07); color: var(--color-primary); transition: all var(--transition); }
.tag:hover { background: var(--color-primary); color: #fff; }
.tag-gold { background: rgba(201,168,76,0.15); color: var(--color-accent-dark); }
.tag-gold:hover { background: var(--color-accent); color: #fff; }

/* ===== 分割线 ===== */
.divider { width: 80px; height: 3px; background: var(--color-accent); border-radius: 4px; margin: 1.2rem 0; }

/* ===== 徽章 ===== */
.badge { display: inline-flex; align-items: center; gap: 0.3rem; padding: 0.15rem 0.7rem; border-radius: 50px; font-size: 0.75rem; font-weight: 600; }
.badge-primary { background: rgba(139,26,26,0.1); color: var(--color-primary); }
.badge-accent { background: rgba(201,168,76,0.15); color: var(--color-accent-dark); }

/* ===== 图片装饰 ===== */
.img-rounded { border-radius: var(--radius-md); }
.img-shadow { box-shadow: var(--shadow-md); }

/* ===== 图文区块 ===== */
.media-block { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); align-items: center; }
.media-block.reverse { direction: rtl; }
.media-block.reverse > * { direction: ltr; }
.media-block-img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; height: 100%; object-fit: cover; min-height: 360px; }
.media-block-content h3 { font-size: 1.6rem; font-weight: 800; margin-bottom: 0.8rem; }
.media-block-content p { font-size: 1rem; color: var(--color-text-light); line-height: 1.8; margin-bottom: 1.2rem; }
@media screen and (max-width: 767px) {
  .media-block { grid-template-columns: 1fr; gap: var(--spacing-md); }
  .media-block.reverse { direction: ltr; }
  .media-block-img { min-height: 240px; }
  .media-block-content h3 { font-size: 1.3rem; }
}

/* ===== 空白状态 ===== */
.empty-state { text-align: center; padding: var(--spacing-md); color: var(--color-text-light); }
.empty-state i { font-size: 2.5rem; margin-bottom: 0.8rem; color: var(--color-border); }
.empty-state p { font-size: 1rem; }

/* ===== 辅助类 ===== */
.text-center { text-align: center; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

/* ===== 响应式微调 ===== */
@media screen and (max-width: 1023px) {
  :root { --spacing-xl: 4rem; --spacing-lg: 3rem; }
}
@media screen and (max-width: 767px) {
  :root { --spacing-xl: 3rem; --spacing-lg: 2rem; --spacing-md: 1.5rem; }
  .hero-content h1 { font-size: 1.8rem; }
  .stat-number { font-size: 2rem; }
}

/* roulang page: article */
:root {
            --primary: #c0392b;
            --primary-dark: #a93226;
            --primary-light: #e74c3c;
            --secondary: #2c3e50;
            --accent: #f39c12;
            --bg-light: #f8f5f0;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --text-dark: #1e1e2a;
            --text-body: #3d3d4a;
            --text-muted: #7a7a8a;
            --text-light: #f0ece4;
            --border: #e0dbd4;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.14);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: var(--bg-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        ul, ol { list-style: none; }

        /* Header & Nav */
        .site-header {
            background: var(--bg-white);
            box-shadow: 0 2px 20px rgba(0,0,0,0.06);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--header-h);
            backdrop-filter: blur(12px);
            background: rgba(255,255,255,0.92);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-logo i { font-size: 1.4rem; color: var(--accent); }
        .site-logo:hover { color: var(--primary-dark); }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; color: var(--text-dark); cursor: pointer; padding: 6px; }
        .nav-main { display: flex; align-items: center; gap: 6px; }
        .nav-main a {
            padding: 8px 20px;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
            position: relative;
        }
        .nav-main a:hover { color: var(--primary); background: rgba(192,57,43,0.06); }
        .nav-main a.active {
            color: var(--bg-white);
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(192,57,43,0.30);
        }
        .nav-main a.active:hover { background: var(--primary-dark); color: var(--bg-white); }

        /* Article Hero */
        .article-hero {
            background: var(--secondary);
            position: relative;
            padding: 60px 0 50px;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }
        .article-hero .container { position: relative; z-index: 1; }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--bg-white);
            line-height: 1.25;
            max-width: 860px;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            color: rgba(255,255,255,0.78);
            font-size: 0.95rem;
            align-items: center;
        }
        .article-meta i { margin-right: 6px; }
        .article-meta .category-badge {
            background: var(--accent);
            color: var(--text-dark);
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* Article Main */
        .article-main {
            padding: 50px 0 70px;
        }
        .article-body {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 48px 52px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            max-width: 860px;
            margin: 0 auto;
        }
        .article-body .featured-image {
            border-radius: var(--radius);
            margin-bottom: 32px;
            width: 100%;
            max-height: 460px;
            object-fit: cover;
        }
        .article-body .content p {
            margin-bottom: 1.5em;
            font-size: 1.08rem;
            line-height: 1.8;
            color: var(--text-body);
        }
        .article-body .content h2, .article-body .content h3 {
            margin-top: 1.8em;
            margin-bottom: 0.7em;
            color: var(--text-dark);
            font-weight: 700;
        }
        .article-body .content h2 { font-size: 1.8rem; }
        .article-body .content h3 { font-size: 1.4rem; }
        .article-body .content ul, .article-body .content ol {
            margin-bottom: 1.5em;
            padding-left: 1.6em;
        }
        .article-body .content ul li { list-style: disc; margin-bottom: 0.4em; }
        .article-body .content ol li { list-style: decimal; margin-bottom: 0.4em; }
        .article-body .content blockquote {
            border-left: 5px solid var(--primary);
            background: var(--bg-light);
            padding: 20px 28px;
            margin: 1.8em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-muted);
        }
        .article-body .content img {
            border-radius: var(--radius);
            margin: 1.5em 0;
            width: 100%;
        }
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            max-width: 600px;
            margin: 0 auto;
        }
        .article-not-found i { font-size: 3.6rem; color: var(--text-muted); margin-bottom: 20px; }
        .article-not-found h2 { font-size: 1.8rem; color: var(--text-dark); margin-bottom: 12px; }
        .article-not-found p { color: var(--text-muted); margin-bottom: 24px; }
        .article-not-found .btn-home {
            display: inline-block;
            padding: 12px 36px;
            background: var(--primary);
            color: var(--bg-white);
            border-radius: 40px;
            font-weight: 600;
            transition: var(--transition);
        }
        .article-not-found .btn-home:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }

        /* Article Nav */
        .article-nav-links {
            max-width: 860px;
            margin: 36px auto 0;
            display: flex;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }
        .article-nav-links a {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px 24px;
            flex: 1;
            min-width: 200px;
            transition: var(--transition);
            color: var(--text-body);
            display: flex;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-sm);
        }
        .article-nav-links a:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-2px); color: var(--primary); }
        .article-nav-links a i { font-size: 1.2rem; }

        /* Related Section */
        .related-section {
            background: var(--bg-white);
            padding: 60px 0;
            border-top: 1px solid var(--border);
        }
        .related-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 32px;
            text-align: center;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }
        .related-card {
            background: var(--bg-light);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
        .related-card img { width: 100%; height: 170px; object-fit: cover; border-radius: 0; }
        .related-card .card-body { padding: 20px; }
        .related-card .card-body h3 { font-size: 1.1rem; font-weight: 600; color: var(--text-dark); margin-bottom: 8px; }
        .related-card .card-body p { font-size: 0.92rem; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-body .meta { font-size: 0.85rem; color: var(--text-muted); margin-top: 10px; display: flex; gap: 12px; }

        /* CTA Section */
        .cta-section {
            background: var(--secondary);
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.10;
            z-index: 0;
        }
        .cta-section .container { position: relative; z-index: 1; }
        .cta-section h2 { font-size: 2.2rem; font-weight: 700; color: var(--bg-white); margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.78); max-width: 560px; margin: 0 auto 28px; font-size: 1.1rem; }
        .cta-section .btn-cta {
            display: inline-block;
            padding: 16px 48px;
            background: var(--accent);
            color: var(--text-dark);
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(243,156,18,0.35);
        }
        .cta-section .btn-cta:hover { background: #e67e22; transform: translateY(-3px); box-shadow: 0 12px 40px rgba(243,156,18,0.45); color: var(--text-dark); }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 0.9fr 0.9fr 0.9fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 { font-size: 1.5rem; color: var(--bg-white); margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
        .footer-brand h3 i { color: var(--accent); }
        .footer-brand p { font-size: 0.95rem; line-height: 1.7; color: rgba(255,255,255,0.6); }
        .footer-col h4 { font-size: 1.1rem; color: var(--bg-white); margin-bottom: 16px; font-weight: 600; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 0.95rem; transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.10);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
        }
        .footer-socials { display: flex; gap: 16px; }
        .footer-socials a { color: rgba(255,255,255,0.5); font-size: 1.3rem; transition: var(--transition); }
        .footer-socials a:hover { color: var(--accent); transform: scale(1.15); }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .article-hero h1 { font-size: 2.2rem; }
            .article-body { padding: 36px 32px; }
        }
        @media (max-width: 768px) {
            :root { --header-h: 64px; }
            .nav-toggle { display: block; }
            .nav-main {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 20px 24px;
                gap: 8px;
                box-shadow: 0 20px 40px rgba(0,0,0,0.12);
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-radius: 0 0 var(--radius) var(--radius);
            }
            .nav-main.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-main a { width: 100%; text-align: center; padding: 12px; }
            .article-hero { padding: 40px 0 32px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-body { padding: 28px 20px; border-radius: var(--radius); }
            .article-body .content p { font-size: 1rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .related-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-hero h1 { font-size: 1.5rem; }
            .article-meta { font-size: 0.85rem; gap: 10px; }
            .article-body { padding: 20px 16px; }
            .related-grid { grid-template-columns: 1fr; }
            .article-nav-links { flex-direction: column; }
            .article-nav-links a { min-width: auto; }
            .cta-section h2 { font-size: 1.6rem; }
            .cta-section .btn-cta { padding: 14px 32px; font-size: 1rem; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #c0392b;
            --primary-dark: #a93226;
            --primary-light: #e74c3c;
            --secondary: #2c3e50;
            --secondary-light: #34495e;
            --accent: #f39c12;
            --bg-light: #f8f5f0;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --text-dark: #2c3e50;
            --text-body: #4a4a4a;
            --text-light: #7f8c8d;
            --text-white: #fefefe;
            --border: #e8e0d8;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: var(--bg-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            padding-top: var(--header-h);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; border-radius: 4px; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-dark); font-weight: 700; line-height: 1.3; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        .section { padding: 80px 0; }
        .section-title { font-size: 2.2rem; text-align: center; margin-bottom: 12px; color: var(--text-dark); }
        .section-subtitle { text-align: center; font-size: 1.1rem; color: var(--text-light); max-width: 680px; margin: 0 auto 48px; }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 16px; }
        .mb-2 { margin-bottom: 32px; }
        .mb-3 { margin-bottom: 48px; }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--header-h);
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 20px rgba(0,0,0,0.04);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .site-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.3px;
        }
        .site-logo i { font-size: 1.6rem; color: var(--primary); }
        .site-logo:hover { color: var(--primary-dark); transform: scale(1.02); }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-main a {
            padding: 8px 20px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-body);
            transition: var(--transition);
            position: relative;
        }
        .nav-main a:hover { background: rgba(192,57,43,0.08); color: var(--primary); }
        .nav-main a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(192,57,43,0.30);
        }
        .nav-main a.active:hover { background: var(--primary-dark); color: #fff; }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; color: var(--text-dark); cursor: pointer; padding: 6px; border-radius: 8px; }
        .nav-toggle:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; }

        /* ===== Hero / Banner ===== */
        .page-banner {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, rgba(44,62,80,0.85) 0%, rgba(192,57,43,0.70) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            padding: 60px 24px;
        }
        .page-banner h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            text-shadow: 0 4px 20px rgba(0,0,0,0.25);
            letter-spacing: -0.5px;
        }
        .page-banner p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.92);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .banner-badge {
            display: inline-block;
            background: var(--accent);
            color: #1a1a2e;
            padding: 6px 22px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 20px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        /* ===== 分类标签 ===== */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 48px;
        }
        .category-tabs .tab {
            padding: 10px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            background: var(--bg-white);
            border: 2px solid var(--border);
            color: var(--text-body);
            cursor: pointer;
            transition: var(--transition);
        }
        .category-tabs .tab:hover { border-color: var(--primary); color: var(--primary); background: rgba(192,57,43,0.04); }
        .category-tabs .tab.active { background: var(--primary); border-color: var(--primary); color: #fff; box-shadow: 0 4px 16px rgba(192,57,43,0.25); }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .card-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .card-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
        .card-item .card-img {
            width: 100%; height: 200px; object-fit: cover;
            transition: var(--transition);
        }
        .card-item:hover .card-img { transform: scale(1.03); }
        .card-item .card-body { padding: 22px 24px 26px; }
        .card-item .card-tag {
            display: inline-block;
            background: rgba(192,57,43,0.10);
            color: var(--primary);
            padding: 3px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .card-item h3 { font-size: 1.25rem; margin-bottom: 8px; }
        .card-item h3 a { color: var(--text-dark); }
        .card-item h3 a:hover { color: var(--primary); }
        .card-item p { color: var(--text-light); font-size: 0.95rem; line-height: 1.6; }
        .card-item .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 14px;
            font-size: 0.85rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .card-item .card-meta i { margin-right: 4px; }

        /* ===== 特色板块 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .feature-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .feature-item .icon {
            width: 64px; height: 64px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem; color: #fff;
        }
        .feature-item h4 { font-size: 1.15rem; margin-bottom: 8px; }
        .feature-item p { font-size: 0.9rem; color: var(--text-light); }

        /* ===== 图文区块 ===== */
        .media-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .media-block.reverse { direction: rtl; }
        .media-block.reverse > * { direction: ltr; }
        .media-block .media-img {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            width: 100%; height: 380px; object-fit: cover;
        }
        .media-block .media-content h2 { font-size: 1.8rem; margin-bottom: 16px; }
        .media-block .media-content p { font-size: 1rem; color: var(--text-body); margin-bottom: 20px; line-height: 1.8; }
        .media-block .media-content .btn { margin-top: 8px; }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: rgba(255,255,255,0.10);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-md);
            padding: 32px 16px;
            border: 1px solid rgba(255,255,255,0.15);
        }
        .stat-item .num { font-size: 2.8rem; font-weight: 800; color: #fff; line-height: 1.2; }
        .stat-item .label { font-size: 0.95rem; color: rgba(255,255,255,0.8); margin-top: 6px; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
            transition: var(--transition);
        }
        .faq-question i { transition: transform 0.3s; color: var(--primary); }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-body);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--primary-dark) 100%);
            padding: 80px 24px;
            text-align: center;
            color: #fff;
            border-radius: var(--radius-lg);
            margin: 0 24px;
        }
        .cta-section h2 { font-size: 2.2rem; color: #fff; margin-bottom: 16px; }
        .cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.88); max-width: 600px; margin: 0 auto 32px; }
        .btn {
            display: inline-block;
            padding: 14px 40px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-align: center;
            font-family: var(--font-sans);
        }
        .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 24px rgba(192,57,43,0.35); }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 32px rgba(192,57,43,0.40); color: #fff; }
        .btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.7); }
        .btn-outline:hover { background: rgba(255,255,255,0.15); border-color: #fff; color: #fff; transform: translateY(-2px); }
        .btn-accent { background: var(--accent); color: #1a1a2e; box-shadow: 0 6px 24px rgba(243,156,18,0.30); }
        .btn-accent:hover { background: #e67e22; transform: translateY(-2px); color: #1a1a2e; }
        .btn-lg { padding: 18px 52px; font-size: 1.1rem; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 64px 0 0;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 { font-size: 1.4rem; color: #fff; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
        .footer-brand h3 i { color: var(--primary-light); }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.65); line-height: 1.7; max-width: 360px; }
        .footer-col h4 { font-size: 1rem; color: #fff; margin-bottom: 16px; font-weight: 700; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.65); font-size: 0.9rem; transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.10);
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }
        .footer-socials { display: flex; gap: 14px; }
        .footer-socials a {
            width: 40px; height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            display: flex; align-items: center; justify-content: center;
            color: rgba(255,255,255,0.7);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-socials a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid { grid-template-columns: repeat(2, 1fr); }
            .feature-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .media-block { grid-template-columns: 1fr; gap: 32px; }
            .media-block.reverse { direction: ltr; }
            .page-banner h1 { font-size: 2.6rem; }
        }
        @media (max-width: 768px) {
            .nav-main { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--bg-white); flex-direction: column; padding: 16px 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md); gap: 6px; }
            .nav-main.open { display: flex; }
            .nav-toggle { display: block; }
            .page-banner { min-height: 240px; padding: 40px 20px; }
            .page-banner h1 { font-size: 2rem; }
            .section { padding: 48px 0; }
            .section-title { font-size: 1.7rem; }
            .card-grid { grid-template-columns: 1fr; gap: 20px; }
            .feature-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section { margin: 0 16px; padding: 48px 20px; }
            .cta-section h2 { font-size: 1.6rem; }
            .media-block .media-img { height: 240px; }
            .category-tabs .tab { padding: 8px 18px; font-size: 0.85rem; }
        }
        @media (max-width: 520px) {
            .feature-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr; }
            .page-banner h1 { font-size: 1.6rem; }
            .header-inner { padding: 0 16px; }
            .site-logo { font-size: 1.2rem; }
            .btn-lg { padding: 14px 36px; font-size: 1rem; }
        }

        /* ===== 辅助 ===== */
        .bg-white { background: var(--bg-white); }
        .bg-light { background: var(--bg-light); }
        .bg-dark-section { background: var(--secondary); color: #fff; }
        .bg-dark-section .section-title,
        .bg-dark-section .section-subtitle { color: #fff; }
        .rounded-full { border-radius: 999px; }
        .shadow-hover { transition: var(--transition); }
        .shadow-hover:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
        .truncate-text { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }