/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #0b1a2e;
  --primary-light: #0f2240;
  --primary-dark: #070f1a;
  --accent: #c9a84c;
  --accent-light: #dfc268;
  --accent-dark: #a88930;
  --bg: #f5f5f0;
  --bg-card: #ffffff;
  --bg-dark: #0b1a2e;
  --text: #1a1a2e;
  --text-light: #6b7280;
  --text-white: #f9fafb;
  --border: #e5e7eb;
  --border-light: #f0f0eb;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.12);
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
  --max-width: 1200px;
  --header-height: 130px;
}
/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
button { cursor: pointer; font-family: inherit; border: none; background: none; transition: var(--transition); }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
input, textarea { font-family: inherit; font-size: 1rem; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 0.75rem 1rem; transition: var(--transition); outline: none; background: #fff; }
input:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.15); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
h1 { font-size: 2.75rem; }
h2 { font-size: 2.125rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
p { margin-bottom: 1rem; }
/* ===== Container ===== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
/* ===== 杂志频道导航 ===== */
.site-header { background: var(--primary); color: var(--text-white); position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 16px rgba(0,0,0,0.25); }
.header-top { display: flex; align-items: center; justify-content: space-between; padding: 0.75rem 1.5rem; max-width: var(--max-width); margin: 0 auto; width: 100%; }
.header-brand { display: flex; align-items: center; gap: 0.75rem; }
.header-brand .logo-icon { width: 40px; height: 40px; background: var(--accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.25rem; color: var(--primary); font-weight: 900; flex-shrink: 0; }
.header-brand .logo-text { font-size: 1.375rem; font-weight: 800; letter-spacing: 0.02em; color: #fff; white-space: nowrap; }
.header-brand .logo-text span { color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 1rem; }
.header-actions .search-toggle, .header-actions .menu-toggle { color: rgba(255,255,255,0.8); font-size: 1.25rem; padding: 0.375rem; border-radius: 6px; }
.header-actions .search-toggle:hover, .header-actions .menu-toggle:hover { color: var(--accent); background: rgba(255,255,255,0.08); }
.header-actions .btn-login { background: var(--accent); color: var(--primary); padding: 0.5rem 1.25rem; border-radius: var(--radius-sm); font-weight: 700; font-size: 0.9rem; transition: var(--transition); }
.header-actions .btn-login:hover { background: var(--accent-light); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(201,168,76,0.35); }
.nav-channel { background: rgba(255,255,255,0.04); border-top: 1px solid rgba(255,255,255,0.06); }
.nav-channel-inner { max-width: var(--max-width); margin: 0 auto; display: flex; align-items: center; padding: 0 1.5rem; overflow-x: auto; scrollbar-width: none; }
.nav-channel-inner::-webkit-scrollbar { display: none; }
.nav-channel-inner a { display: flex; align-items: center; gap: 0.4rem; padding: 0.6rem 1.1rem; font-size: 0.9rem; font-weight: 500; color: rgba(255,255,255,0.7); white-space: nowrap; border-bottom: 2px solid transparent; transition: var(--transition); }
.nav-channel-inner a:hover { color: var(--accent); background: rgba(255,255,255,0.05); }
.nav-channel-inner a.active { color: var(--accent); border-bottom-color: var(--accent); background: rgba(201,168,76,0.08); }
.nav-channel-inner a i { font-size: 0.8rem; opacity: 0.7; }
/* ===== Search Bar ===== */
.search-bar { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; background: var(--primary-light); }
.search-bar.open { max-height: 80px; padding: 0.75rem 1.5rem; }
.search-bar-inner { max-width: var(--max-width); margin: 0 auto; display: flex; gap: 0.75rem; }
.search-bar-inner input { flex: 1; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.15); color: #fff; border-radius: var(--radius-sm); padding: 0.6rem 1rem; }
.search-bar-inner input::placeholder { color: rgba(255,255,255,0.4); }
.search-bar-inner input:focus { border-color: var(--accent); background: rgba(255,255,255,0.15); }
.search-bar-inner button { background: var(--accent); color: var(--primary); padding: 0.6rem 1.5rem; border-radius: var(--radius-sm); font-weight: 700; }
.search-bar-inner button:hover { background: var(--accent-light); }
/* ===== Hero ===== */
.hero { position: relative; min-height: 520px; display: flex; align-items: center; overflow: hidden; background: var(--primary-dark); }
.hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat; opacity: 0.35; transform: scale(1.02); transition: opacity 0.6s; }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(11,26,46,0.88) 0%, rgba(11,26,46,0.60) 60%, rgba(11,26,46,0.30) 100%); }
.hero-content { position: relative; z-index: 2; width: 100%; padding: 4rem 1.5rem; max-width: var(--max-width); margin: 0 auto; }
.hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; background: rgba(201,168,76,0.2); border: 1px solid rgba(201,168,76,0.3); border-radius: 50px; padding: 0.35rem 1rem 0.35rem 0.75rem; font-size: 0.8rem; color: var(--accent); margin-bottom: 1.5rem; backdrop-filter: blur(8px); }
.hero-badge i { font-size: 0.7rem; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); color: #fff; font-weight: 900; letter-spacing: -0.02em; line-height: 1.15; margin-bottom: 1rem; }
.hero h1 span { color: var(--accent); }
.hero p { font-size: clamp(1rem, 2vw, 1.2rem); color: rgba(255,255,255,0.75); max-width: 580px; margin-bottom: 2rem; line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.btn-primary { display: inline-flex; align-items: center; gap: 0.5rem; background: var(--accent); color: var(--primary); padding: 0.9rem 2rem; border-radius: var(--radius-sm); font-weight: 700; font-size: 1rem; transition: var(--transition); border: none; }
.btn-primary:hover { background: var(--accent-light); color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,168,76,0.35); }
.btn-outline { display: inline-flex; align-items: center; gap: 0.5rem; background: transparent; color: #fff; padding: 0.9rem 2rem; border-radius: var(--radius-sm); font-weight: 600; font-size: 1rem; border: 1.5px solid rgba(255,255,255,0.3); transition: var(--transition); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(201,168,76,0.08); transform: translateY(-2px); }
/* ===== Section ===== */
.section { padding: 4.5rem 0; }
.section-alt { background: var(--bg-card); }
.section-dark { background: var(--bg-dark); color: var(--text-white); }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 { margin-bottom: 0.75rem; }
.section-header h2 span { color: var(--accent); }
.section-header p { color: var(--text-light); max-width: 580px; margin: 0 auto; font-size: 1.05rem; }
.section-dark .section-header h2 { color: #fff; }
.section-dark .section-header p { color: rgba(255,255,255,0.6); }
/* ===== 介绍板块 ===== */
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.intro-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.intro-image img { width: 100%; height: 340px; object-fit: cover; transition: var(--transition); }
.intro-image:hover img { transform: scale(1.02); }
.intro-text h3 { font-size: 1.75rem; margin-bottom: 1rem; }
.intro-text h3 span { color: var(--accent); }
.intro-text p { color: var(--text-light); font-size: 1rem; line-height: 1.8; }
.intro-features { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 1.5rem; }
.intro-features li { display: flex; align-items: center; gap: 0.5rem; font-size: 0.95rem; color: var(--text); }
.intro-features li i { color: var(--accent); font-size: 0.85rem; width: 20px; }
/* ===== 统计数字 ===== */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.stat-card { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius); padding: 2rem 1.5rem; text-align: center; backdrop-filter: blur(4px); transition: var(--transition); }
.stat-card:hover { border-color: rgba(201,168,76,0.3); transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }
.stat-card .number { font-size: 2.5rem; font-weight: 900; color: var(--accent); line-height: 1; margin-bottom: 0.5rem; }
.stat-card .label { font-size: 0.9rem; color: rgba(255,255,255,0.6); }
/* ===== 分类卡片 ===== */
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.category-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); box-shadow: var(--shadow); }
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: var(--accent); }
.category-card .card-img { height: 180px; overflow: hidden; }
.category-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.category-card:hover .card-img img { transform: scale(1.05); }
.category-card .card-body { padding: 1.5rem; }
.category-card .card-body h3 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.category-card .card-body h3 a { color: var(--text); }
.category-card .card-body h3 a:hover { color: var(--accent); }
.category-card .card-body p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 1rem; }
.category-card .card-meta { display: flex; align-items: center; justify-content: space-between; font-size: 0.8rem; color: var(--text-light); }
.category-card .card-meta .tag { display: inline-block; background: rgba(201,168,76,0.12); color: var(--accent-dark); padding: 0.2rem 0.7rem; border-radius: 50px; font-weight: 600; font-size: 0.75rem; }
/* ===== 资讯列表 ===== */
.news-list { display: grid; gap: 1.25rem; }
.news-item { display: flex; gap: 1.5rem; background: var(--bg-card); border-radius: var(--radius); padding: 1.25rem 1.5rem; border: 1px solid var(--border); transition: var(--transition); box-shadow: var(--shadow); }
.news-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: rgba(201,168,76,0.25); }
.news-item .news-num { width: 2.5rem; font-size: 1.5rem; font-weight: 900; color: var(--accent); opacity: 0.5; flex-shrink: 0; line-height: 1.2; }
.news-item .news-content { flex: 1; min-width: 0; }
.news-item .news-content h4 { font-size: 1.05rem; margin-bottom: 0.3rem; }
.news-item .news-content h4 a { color: var(--text); }
.news-item .news-content h4 a:hover { color: var(--accent); }
.news-item .news-content p { font-size: 0.88rem; color: var(--text-light); margin-bottom: 0.4rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-item .news-meta { display: flex; align-items: center; gap: 1rem; font-size: 0.78rem; color: var(--text-light); }
.news-item .news-meta .tag { background: rgba(201,168,76,0.1); color: var(--accent-dark); padding: 0.15rem 0.6rem; border-radius: 50px; font-weight: 600; font-size: 0.7rem; }
.news-empty { text-align: center; padding: 3rem 1.5rem; color: var(--text-light); background: var(--bg-card); border-radius: var(--radius); border: 1px dashed var(--border); }
/* ===== 流程步骤 ===== */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; counter-reset: step; }
.step-card { background: var(--bg-card); border-radius: var(--radius); padding: 2rem 1.5rem; text-align: center; border: 1px solid var(--border); box-shadow: var(--shadow); position: relative; transition: var(--transition); }
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.step-card .step-num { width: 48px; height: 48px; background: var(--accent); color: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.25rem; font-weight: 900; margin: 0 auto 1rem; position: relative; }
.step-card .step-num::after { content: ''; position: absolute; top: 50%; left: calc(100% + 12px); width: 24px; height: 2px; background: var(--border); }
.steps-grid .step-card:last-child .step-num::after { display: none; }
.step-card h4 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.step-card p { font-size: 0.88rem; color: var(--text-light); margin-bottom: 0; }
/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; display: grid; gap: 0.75rem; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(201,168,76,0.2); }
.faq-question { display: flex; align-items: center; justify-content: space-between; padding: 1.25rem 1.5rem; font-weight: 600; font-size: 1rem; cursor: pointer; background: none; width: 100%; text-align: left; color: var(--text); gap: 1rem; }
.faq-question i { color: var(--accent); transition: transform 0.3s; font-size: 0.85rem; flex-shrink: 0; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; padding: 0 1.5rem; color: var(--text-light); font-size: 0.92rem; line-height: 1.7; }
.faq-item.open .faq-answer { max-height: 300px; padding: 0 1.5rem 1.25rem; }
/* ===== CTA ===== */
.cta-section { background: var(--bg-dark); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; opacity: 0.12; }
.cta-content { position: relative; z-index: 2; text-align: center; padding: 3rem 1.5rem; }
.cta-content h2 { color: #fff; font-size: 2rem; margin-bottom: 0.75rem; }
.cta-content p { color: rgba(255,255,255,0.65); max-width: 520px; margin: 0 auto 2rem; font-size: 1.05rem; }
.cta-content .btn-primary { font-size: 1.1rem; padding: 1rem 2.5rem; }
/* ===== Footer ===== */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.6); padding: 3rem 0 1.5rem; border-top: 1px solid rgba(255,255,255,0.05); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.footer-brand .logo-text { font-size: 1.25rem; font-weight: 800; color: #fff; margin-bottom: 0.75rem; display: block; }
.footer-brand .logo-text span { color: var(--accent); }
.footer-brand p { font-size: 0.88rem; line-height: 1.7; max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 1rem; font-weight: 600; }
.footer-col ul li { margin-bottom: 0.5rem; }
.footer-col ul li a { font-size: 0.88rem; color: rgba(255,255,255,0.55); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 1.5rem; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; font-size: 0.82rem; color: rgba(255,255,255,0.4); gap: 0.75rem; }
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--accent); }
/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .intro-grid { grid-template-columns: 1fr; gap: 2rem; }
  .intro-image img { height: 280px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --header-height: 110px; }
  .header-top { padding: 0.5rem 1rem; }
  .header-brand .logo-text { font-size: 1.125rem; }
  .header-actions .btn-login { padding: 0.4rem 1rem; font-size: 0.8rem; }
  .hero { min-height: 400px; }
  .hero-content { padding: 3rem 1rem; }
  .hero h1 { font-size: 1.75rem; }
  .hero p { font-size: 0.95rem; }
  .section { padding: 3rem 0; }
  .section-header { margin-bottom: 2rem; }
  .section-header h2 { font-size: 1.625rem; }
  .category-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .stat-card { padding: 1.5rem 1rem; }
  .stat-card .number { font-size: 2rem; }
  .steps-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .step-card .step-num::after { display: none; }
  .news-item { flex-direction: column; gap: 0.75rem; padding: 1rem 1.25rem; }
  .news-item .news-num { font-size: 1.25rem; width: auto; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .intro-features { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .hero { min-height: 340px; }
  .hero-content { padding: 2rem 1rem; }
  .hero h1 { font-size: 1.5rem; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
  .stat-card { padding: 1rem 0.75rem; }
  .stat-card .number { font-size: 1.625rem; }
  .stat-card .label { font-size: 0.78rem; }
  .steps-grid { grid-template-columns: 1fr; }
  .nav-channel-inner a { padding: 0.5rem 0.8rem; font-size: 0.82rem; }
  .header-brand .logo-icon { width: 32px; height: 32px; font-size: 1rem; }
  .header-brand .logo-text { font-size: 1rem; }
  .faq-question { font-size: 0.9rem; padding: 1rem 1.2rem; }
  .cta-content h2 { font-size: 1.5rem; }
  .cta-content .btn-primary { width: 100%; justify-content: center; }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --primary: #0b1b35;
  --primary-light: #132a4a;
  --primary-dark: #050e1a;
  --accent: #c9a84c;
  --accent-light: #e0c46a;
  --accent-dark: #a88a2e;
  --accent-gradient: linear-gradient(135deg, #c9a84c 0%, #e8c84a 100%);
  --bg-light: #f9f7f2;
  --bg-white: #ffffff;
  --bg-dark: #070e1a;
  --bg-section: #f3f0e8;
  --text: #1a1a2e;
  --text-secondary: #4a4a5a;
  --text-muted: #8a8a9a;
  --text-light: #b0b0c0;
  --text-white: #f0f0f0;
  --border: #e5e0d5;
  --border-light: #f0ece4;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
  --shadow-accent: 0 4px 20px rgba(201,168,76,0.3);
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
  --max-width: 1200px;
  --header-h: 72px;
  --nav-h: 52px;
}

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

/* ===== 容器 ===== */
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) { .container { padding: 0 16px; } }

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-light); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ===== 顶部品牌栏 ===== */
.site-header {
  background: var(--primary);
  border-bottom: 2px solid var(--accent);
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-white);
  letter-spacing: 1px;
}
.logo-text span { color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 16px; }
.header-actions a { color: var(--text-light); font-size: 0.9rem; transition: var(--transition); }
.header-actions a:hover { color: var(--accent); }
@media (max-width: 768px) {
  .site-header { height: 60px; }
  .logo-text { font-size: 1.15rem; }
  .header-inner { padding: 0 16px; }
}

/* ===== 导航频道栏 ===== */
.nav-channel {
  background: var(--primary-dark);
  border-bottom: 1px solid rgba(201,168,76,0.15);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  position: sticky;
  top: var(--header-h);
  z-index: 999;
}
.nav-channel-inner {
  display: flex;
  align-items: center;
  gap: 4px;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-channel-inner::-webkit-scrollbar { display: none; }
.nav-channel-inner a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-light);
  white-space: nowrap;
  transition: var(--transition);
  border: 1px solid transparent;
}
.nav-channel-inner a i { font-size: 0.8rem; }
.nav-channel-inner a:hover { color: var(--accent); background: rgba(201,168,76,0.08); border-color: rgba(201,168,76,0.2); }
.nav-channel-inner a.active { color: var(--accent); background: rgba(201,168,76,0.12); border-color: var(--accent); font-weight: 600; }
@media (max-width: 768px) {
  .nav-channel { top: 60px; height: 46px; }
  .nav-channel-inner { padding: 0 12px; gap: 2px; }
  .nav-channel-inner a { padding: 6px 14px; font-size: 0.8rem; }
}

/* ===== 文章 Banner ===== */
.article-banner {
  position: relative;
  padding: 80px 0 60px;
  background: var(--primary) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  background-blend-mode: overlay;
  min-height: 280px;
  display: flex;
  align-items: center;
}
.article-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,27,53,0.92) 0%, rgba(7,14,26,0.7) 100%);
  pointer-events: none;
}
.article-banner .container { position: relative; z-index: 1; }
.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 0.85rem;
  color: var(--text-light);
}
.article-breadcrumb a { color: var(--accent-light); }
.article-breadcrumb a:hover { color: var(--accent); }
.article-breadcrumb span { color: var(--text-light); }
.article-breadcrumb i { font-size: 0.7rem; color: var(--accent); }
.article-banner-title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text-white);
  max-width: 900px;
  line-height: 1.25;
  letter-spacing: -0.5px;
}
.article-banner-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
  font-size: 0.9rem;
  color: var(--text-light);
}
.article-banner-meta .badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 14px;
  background: var(--accent);
  color: var(--primary);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}
.article-banner-meta .badge i { font-size: 0.7rem; }
.article-banner-meta .date i { margin-right: 4px; }
@media (max-width: 768px) {
  .article-banner { padding: 60px 0 40px; min-height: 220px; }
  .article-banner-title { font-size: 1.6rem; }
  .article-banner-meta { gap: 10px; font-size: 0.8rem; }
}
@media (max-width: 520px) {
  .article-banner-title { font-size: 1.3rem; }
}

/* ===== 文章主体 ===== */
.article-main { padding: 48px 0 64px; }
.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}
.article-content { min-width: 0; }
.article-body {
  background: var(--bg-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px 48px;
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-secondary);
}
.article-body h2 { font-size: 1.6rem; margin: 36px 0 16px; color: var(--primary); }
.article-body h3 { font-size: 1.25rem; margin: 28px 0 12px; color: var(--primary); }
.article-body p { margin-bottom: 18px; }
.article-body ul, .article-body ol { margin-bottom: 18px; padding-left: 24px; }
.article-body li { margin-bottom: 8px; list-style: disc; }
.article-body ol li { list-style: decimal; }
.article-body a { color: var(--accent-dark); border-bottom: 1px solid transparent; }
.article-body a:hover { border-bottom-color: var(--accent); }
.article-body blockquote {
  border-left: 4px solid var(--accent);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--bg-section);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-secondary);
}
.article-body img {
  border-radius: var(--radius-sm);
  margin: 24px auto;
  box-shadow: var(--shadow-sm);
}
.article-body pre {
  background: var(--primary);
  color: var(--text-white);
  padding: 20px 24px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: 24px 0;
  font-size: 0.9rem;
}
.article-body code { font-family: 'SF Mono', 'Fira Code', monospace; }

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.article-tags .tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 16px;
  background: var(--bg-section);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  transition: var(--transition);
}
.article-tags .tag:hover { background: var(--accent); color: var(--primary); border-color: var(--accent); }
.article-tags .tag i { font-size: 0.7rem; }

/* ===== 侧边栏 ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 32px; }
.sidebar-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}
.sidebar-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent);
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-card h3 i { color: var(--accent); }
.sidebar-list li { margin-bottom: 12px; }
.sidebar-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--bg-light);
  transition: var(--transition);
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.sidebar-list a:hover { background: var(--accent); color: var(--primary); transform: translateX(4px); }
.sidebar-list a i { color: var(--accent); font-size: 0.8rem; }
.sidebar-list a:hover i { color: var(--primary); }

.sidebar-cta {
  background: var(--accent-gradient);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
  color: var(--primary);
}
.sidebar-cta h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; color: var(--primary); }
.sidebar-cta p { font-size: 0.88rem; margin-bottom: 16px; opacity: 0.85; }
.sidebar-cta .btn { background: var(--primary); color: var(--text-white); border: none; }
.sidebar-cta .btn:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-lg); }

@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; gap: 32px; }
  .article-body { padding: 28px 24px; }
}
@media (max-width: 768px) {
  .article-main { padding: 32px 0 48px; }
  .article-body { padding: 20px 16px; font-size: 0.95rem; }
  .sidebar-card { padding: 20px; }
  .sidebar-cta { padding: 24px 20px; }
}

/* ===== 相关文章 ===== */
.related-section {
  background: var(--bg-section);
  padding: 64px 0;
}
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 12px;
}
.section-header h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
  position: relative;
  padding-left: 16px;
}
.section-header h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background: var(--accent);
  border-radius: 2px;
}
.section-header a {
  font-size: 0.9rem;
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}
.section-header a:hover { color: var(--accent); }
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.related-card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: var(--transition);
}
.related-card:hover .related-card-img { transform: scale(1.03); }
.related-card-body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.related-card-body .cat-tag {
  display: inline-block;
  padding: 2px 12px;
  background: var(--accent);
  color: var(--primary);
  border-radius: 12px;
  font-size: 0.72rem;
  font-weight: 600;
  margin-bottom: 8px;
  align-self: flex-start;
}
.related-card-body h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.related-card-body h3 a { color: var(--primary); }
.related-card-body h3 a:hover { color: var(--accent-dark); }
.related-card-body p { font-size: 0.84rem; color: var(--text-muted); line-height: 1.6; flex: 1; }
.related-card-body .date { font-size: 0.78rem; color: var(--text-light); margin-top: 12px; display: flex; align-items: center; gap: 4px; }
@media (max-width: 1024px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .related-grid { grid-template-columns: 1fr; } }

/* ===== 空状态 ===== */
.not-found-box {
  text-align: center;
  padding: 80px 24px;
  background: var(--bg-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.not-found-box i { font-size: 3rem; color: var(--accent); margin-bottom: 20px; }
.not-found-box h2 { font-size: 1.5rem; margin-bottom: 12px; }
.not-found-box p { color: var(--text-muted); margin-bottom: 24px; }
.not-found-box .btn { display: inline-flex; align-items: center; gap: 8px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary { background: var(--accent-gradient); color: var(--primary); box-shadow: var(--shadow-accent); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(201,168,76,0.4); color: var(--primary); }
.btn-outline { background: transparent; color: var(--accent); border: 2px solid var(--accent); }
.btn-outline:hover { background: var(--accent); color: var(--primary); transform: translateY(-2px); }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }

/* ===== 页面底部 ===== */
.site-footer {
  background: var(--primary);
  color: var(--text-light);
  padding: 60px 0 0;
  border-top: 3px solid var(--accent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(201,168,76,0.15);
}
.footer-brand .logo-text { font-size: 1.3rem; display: block; margin-bottom: 16px; }
.footer-brand p { font-size: 0.88rem; line-height: 1.7; color: var(--text-light); max-width: 320px; }
.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--accent);
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  font-size: 0.85rem;
  color: var(--text-light);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-col ul a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 20px 0;
  font-size: 0.82rem;
  color: var(--text-light);
}
.footer-bottom a { color: var(--accent-light); }
.footer-bottom a:hover { color: var(--accent); }
@media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
@media (max-width: 768px) {
  .site-footer { padding: 40px 0 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-brand p { max-width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ===== 返回顶部 ===== */
.back-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: var(--primary);
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-accent);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  z-index: 99;
}
.back-top.show { display: flex; }
.back-top:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(201,168,76,0.5); }

/* ===== 辅助 ===== */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9e;
            --primary-dark: #0f2444;
            --secondary: #e8b830;
            --secondary-light: #f0d060;
            --secondary-dark: #c49a20;
            --accent: #d94a3a;
            --accent-light: #e86a5a;
            --bg-body: #f5f7fc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f1a2e;
            --bg-section-alt: #eef2f8;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8888a0;
            --text-light: #f0f2f8;
            --border-light: #e2e6ee;
            --border-medium: #c8cedc;
            --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 6px 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 Neue', sans-serif;
            --max-width: 1200px;
            --header-h: 64px;
            --nav-h: 52px;
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 32px;
            --space-lg: 56px;
            --space-xl: 80px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        a:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .container-wide {
            max-width: 1360px;
            margin: 0 auto;
            padding: 0 var(--space-sm);
        }

        /* ===== Typography ===== */
        .heading-xl {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
        }
        .heading-lg {
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
        }
        .heading-md {
            font-size: clamp(1.2rem, 2vw, 1.6rem);
            font-weight: 600;
            line-height: 1.35;
        }
        .heading-sm {
            font-size: 1.1rem;
            font-weight: 600;
            line-height: 1.4;
        }
        .text-body {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .text-small {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .text-xs {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: var(--space-xl) 0;
        }
        .section-sm {
            padding: var(--space-lg) 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .section-white {
            background: var(--bg-white);
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--secondary);
            background: rgba(232, 184, 48, 0.12);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: var(--space-sm);
        }
        .section-label.dark {
            background: rgba(232, 184, 48, 0.18);
            color: var(--secondary-light);
        }

        .section-title {
            margin-bottom: var(--space-sm);
        }
        .section-desc {
            max-width: 680px;
            margin-bottom: var(--space-md);
            font-size: 1.05rem;
        }
        .section-desc.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .text-center {
            text-align: center;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 2px solid transparent;
            text-decoration: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-secondary {
            background: var(--secondary);
            color: var(--primary-dark);
            border-color: var(--secondary);
        }
        .btn-secondary:hover {
            background: var(--secondary-light);
            border-color: var(--secondary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn i {
            font-size: 0.9em;
        }

        /* ===== Badges & Tags ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--bg-section-alt);
            color: var(--text-secondary);
        }
        .badge-primary {
            background: rgba(26, 58, 107, 0.1);
            color: var(--primary);
        }
        .badge-secondary {
            background: rgba(232, 184, 48, 0.18);
            color: #8a6a10;
        }
        .badge-accent {
            background: rgba(217, 74, 58, 0.1);
            color: var(--accent);
        }
        .badge-success {
            background: rgba(34, 160, 80, 0.1);
            color: #1a8a44;
        }

        .tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: var(--radius-sm);
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--bg-section-alt);
            color: var(--text-secondary);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ===== Header / Brand Bar ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--space-sm);
        }
        .logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--secondary);
        }
        .logo-text i {
            color: var(--secondary);
            margin-right: 6px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
        }
        .header-actions .btn {
            padding: 8px 18px;
            font-size: 0.85rem;
        }

        /* ===== Navigation / Channel Bar ===== */
        .nav-channel {
            background: var(--primary-dark);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            position: sticky;
            top: var(--header-h);
            z-index: 99;
        }
        .nav-channel-inner {
            display: flex;
            align-items: center;
            height: var(--nav-h);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--space-sm);
            gap: 2px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }
        .nav-channel-inner::-webkit-scrollbar {
            display: none;
        }
        .nav-channel-inner a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 0 20px;
            height: 100%;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            border-bottom: 3px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-channel-inner a i {
            font-size: 0.8rem;
            opacity: 0.7;
        }
        .nav-channel-inner a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
            border-bottom-color: rgba(255, 255, 255, 0.3);
        }
        .nav-channel-inner a.active {
            color: var(--secondary);
            border-bottom-color: var(--secondary);
            background: rgba(232, 184, 48, 0.08);
        }
        .nav-channel-inner a.active i {
            opacity: 1;
            color: var(--secondary);
        }

        /* ===== Mobile Menu Toggle ===== */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--primary);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            cursor: pointer;
        }
        .mobile-toggle:focus-visible {
            outline: 3px solid var(--secondary);
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            position: relative;
            padding: var(--space-xl) 0 var(--space-lg);
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 36, 68, 0.88) 0%, rgba(26, 58, 107, 0.72) 100%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            color: #fff;
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: var(--space-xs);
        }
        .page-hero p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .page-hero .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: var(--space-sm);
        }
        .page-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .page-hero .breadcrumb a:hover {
            color: var(--secondary);
        }
        .page-hero .breadcrumb span {
            color: var(--secondary);
        }

        /* ===== Card System ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-image {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: var(--space-sm) var(--space-sm) var(--space-md);
        }
        .card-body .card-title {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .card-body .card-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: var(--space-xs);
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .card-body .card-meta i {
            margin-right: 4px;
        }

        .card-horizontal {
            display: flex;
            gap: var(--space-sm);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .card-horizontal:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .card-horizontal .card-image-wrap {
            flex: 0 0 220px;
            min-height: 150px;
            overflow: hidden;
        }
        .card-horizontal .card-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .card-horizontal .card-body {
            flex: 1;
            padding: var(--space-sm) var(--space-sm) var(--space-sm) 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        /* ===== Grid Layouts ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-md);
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-md);
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
        }
        .grid-2-1 {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: var(--space-md);
        }
        .grid-1-2 {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: var(--space-md);
        }

        /* ===== Step / Timeline ===== */
        .step-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--space-md);
            counter-reset: step;
        }
        .step-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition);
            counter-increment: step;
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 auto var(--space-sm);
            position: relative;
        }
        .step-number::after {
            content: counter(step);
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--space-xs);
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-medium);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--space-sm) var(--space-md);
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            background: none;
            gap: var(--space-sm);
            cursor: pointer;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--bg-section-alt);
        }
        .faq-question i {
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 var(--space-md) var(--space-sm);
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .faq-answer p+ p {
            margin-top: 8px;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: var(--space-lg) var(--space-md);
            text-align: center;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 36, 68, 0.82);
            border-radius: var(--radius-lg);
            z-index: 1;
        }
        .cta-block .container {
            position: relative;
            z-index: 2;
        }
        .cta-block h2 {
            color: #fff;
            font-size: clamp(1.4rem, 3vw, 2rem);
            margin-bottom: var(--space-xs);
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto var(--space-sm);
            font-size: 1.05rem;
        }
        .cta-block .btn {
            margin-top: var(--space-xs);
        }

        /* ===== Stats / Data ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
            text-align: center;
        }
        .stat-item {
            padding: var(--space-md) var(--space-sm);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-number .suffix {
            color: var(--secondary);
            font-size: 1.2rem;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* ===== Content List ===== */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .content-list-item {
            display: flex;
            align-items: flex-start;
            gap: var(--space-sm);
            padding: var(--space-sm);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .content-list-item:hover {
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .content-list-item .item-icon {
            flex: 0 0 48px;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(26, 58, 107, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary);
        }
        .content-list-item .item-content {
            flex: 1;
        }
        .content-list-item .item-content h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .content-list-item .item-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: var(--space-lg) 0 var(--space-sm);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--space-lg);
            margin-bottom: var(--space-md);
        }
        .footer-brand .logo-text {
            color: #fff;
            font-size: 1.2rem;
            display: inline-block;
            margin-bottom: var(--space-xs);
        }
        .footer-brand .logo-text span {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--space-sm);
            letter-spacing: 0.02em;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: var(--space-sm);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--space-xs);
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: var(--shadow-md);
            z-index: 50;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .back-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-top:hover {
            background: var(--primary-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-md);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-2-1,
            .grid-1-2 {
                grid-template-columns: 1fr;
            }
            .card-horizontal .card-image-wrap {
                flex: 0 0 160px;
                min-height: 120px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 56px;
                --nav-h: 46px;
                --space-xl: 48px;
                --space-lg: 36px;
                --space-md: 24px;
            }

            .mobile-toggle {
                display: block;
            }

            .header-actions .btn span {
                display: none;
            }

            .nav-channel-inner {
                gap: 0;
                padding: 0 var(--space-xs);
            }
            .nav-channel-inner a {
                padding: 0 12px;
                font-size: 0.82rem;
            }
            .nav-channel-inner a i {
                display: none;
            }

            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-sm);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .card-horizontal {
                flex-direction: column;
            }
            .card-horizontal .card-image-wrap {
                flex: unset;
                width: 100%;
                min-height: 180px;
            }
            .card-horizontal .card-body {
                padding: var(--space-sm);
            }
            .step-list {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero {
                min-height: 200px;
                padding: var(--space-lg) 0;
            }
            .back-top {
                bottom: 20px;
                right: 20px;
                width: 42px;
                height: 42px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-xs);
            }
            .step-list {
                grid-template-columns: 1fr;
            }
            .nav-channel-inner a {
                padding: 0 10px;
                font-size: 0.78rem;
            }
            .header-actions .btn {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .cta-block {
                padding: var(--space-md) var(--space-sm);
            }
            .faq-question {
                padding: var(--space-sm) var(--space-sm);
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 var(--space-sm) var(--space-sm);
            }
        }

        /* ===== Print ===== */
        @media print {
            .site-header,
            .nav-channel,
            .back-top,
            .footer-bottom {
                position: static;
                box-shadow: none;
            }
            .page-hero::before {
                display: none;
            }
            .page-hero {
                background: var(--primary-dark) !important;
                -webkit-print-color-adjust: exact;
                print-color-adjust: exact;
            }
            .card:hover {
                transform: none;
                box-shadow: var(--shadow-sm);
            }
            .btn:hover {
                transform: none;
            }
        }