/* roulang page: index */
:root {
  --primary: #1a3a5c;
  --primary-light: #2a5a8c;
  --primary-dark: #0f2440;
  --accent: #e8a838;
  --accent-light: #f0c060;
  --accent-dark: #c88a20;
  --bg: #f5f7fa;
  --bg-card: #ffffff;
  --text: #1a2a3a;
  --text-light: #5a6a7a;
  --border: #dce0e6;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --max-width: 1200px;
  --header-h: 76px;
}
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: var(--primary-light); 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; outline: none; }
input:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(232,168,56,0.15); }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-title { font-size: 2rem; font-weight: 700; color: var(--primary); margin-bottom: 12px; text-align: center; }
.section-subtitle { font-size: 1.1rem; color: var(--text-light); text-align: center; margin-bottom: 48px; max-width: 640px; margin-left: auto; margin-right: auto; }
.text-center { text-align: center; }
.grid-x { display: flex; flex-wrap: wrap; margin: 0 -12px; }
.cell { padding: 0 12px; flex: 0 0 auto; }
.cell-12 { width: 100%; }
.cell-6 { width: 50%; }
.cell-4 { width: 33.3333%; }
.cell-3 { width: 25%; }

/* header */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(26,58,92,0.97); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  height: var(--header-h);
  transition: var(--transition);
}
.header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%;
}
.logo {
  font-size: 1.35rem; font-weight: 800; color: #fff; letter-spacing: 0.5px;
  display: flex; align-items: center; gap: 10px;
}
.logo i { color: var(--accent); font-size: 1.5rem; }
.logo span { background: linear-gradient(135deg, #fff, var(--accent-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-list { display: flex; align-items: center; gap: 6px; list-style: none; margin: 0; }
.nav-list li a {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.8); font-size: 0.95rem; font-weight: 500;
  transition: var(--transition); position: relative;
}
.nav-list li a:hover { color: #fff; background: rgba(255,255,255,0.1); }
.nav-list li a.active { color: #fff; background: rgba(232,168,56,0.2); }
.nav-list li a.active::after { content: ''; position: absolute; bottom: 4px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--accent); border-radius: 2px; }
.nav-cta a {
  background: var(--accent); color: var(--primary-dark) !important;
  font-weight: 700; padding: 10px 24px !important; border-radius: var(--radius-sm);
  box-shadow: 0 4px 14px rgba(232,168,56,0.35);
}
.nav-cta a:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,168,56,0.45); }
.hamburger { display: none; background: none; border: none; color: #fff; font-size: 1.6rem; cursor: pointer; padding: 4px; }

/* hero */
.hero {
  min-height: 86vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  position: relative; overflow: hidden; margin-top: var(--header-h);
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.15; mix-blend-mode: overlay;
}
.hero::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 120px;
  background: linear-gradient(transparent, var(--bg));
}
.hero .container { position: relative; z-index: 2; text-align: center; padding: 60px 24px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(232,168,56,0.2); color: var(--accent-light);
  padding: 8px 20px; border-radius: 50px; font-size: 0.9rem; font-weight: 600;
  border: 1px solid rgba(232,168,56,0.3); margin-bottom: 28px;
}
.hero h1 {
  font-size: 3.2rem; font-weight: 800; color: #fff; line-height: 1.2;
  margin-bottom: 20px; letter-spacing: -0.5px;
}
.hero h1 span { color: var(--accent); }
.hero p {
  font-size: 1.2rem; color: rgba(255,255,255,0.75); max-width: 640px;
  margin: 0 auto 36px; line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary, .btn-outline {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 36px; border-radius: var(--radius-sm);
  font-size: 1.05rem; font-weight: 700; transition: var(--transition);
  border: none; cursor: pointer;
}
.btn-primary { background: var(--accent); color: var(--primary-dark); box-shadow: 0 6px 24px rgba(232,168,56,0.4); }
.btn-primary:hover { background: var(--accent-light); transform: translateY(-3px); box-shadow: 0 12px 36px rgba(232,168,56,0.5); color: var(--primary-dark); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.3); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }
.hero-stats { display: flex; gap: 48px; justify-content: center; margin-top: 48px; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat .num { font-size: 2.4rem; font-weight: 800; color: #fff; }
.hero-stat .num span { color: var(--accent); }
.hero-stat .label { font-size: 0.9rem; color: rgba(255,255,255,0.6); margin-top: 4px; }

/* intro */
.intro-grid { display: flex; flex-wrap: wrap; gap: 30px; justify-content: center; }
.intro-card {
  flex: 1 1 260px; max-width: 320px;
  background: var(--bg-card); border-radius: var(--radius);
  padding: 36px 28px; text-align: center;
  box-shadow: var(--shadow); transition: var(--transition);
  border: 1px solid var(--border);
}
.intro-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.intro-card .icon { width: 64px; height: 64px; border-radius: 16px; background: rgba(26,58,92,0.08); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 1.8rem; color: var(--primary); transition: var(--transition); }
.intro-card:hover .icon { background: var(--primary); color: #fff; }
.intro-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.intro-card p { font-size: 0.95rem; color: var(--text-light); line-height: 1.7; }

/* category cards */
.cat-grid { display: flex; flex-wrap: wrap; gap: 24px; justify-content: center; }
.cat-card {
  flex: 1 1 280px; max-width: 360px;
  background: var(--bg-card); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); transition: var(--transition);
  border: 1px solid var(--border);
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.cat-card .img-wrap { height: 200px; overflow: hidden; position: relative; }
.cat-card .img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.cat-card:hover .img-wrap img { transform: scale(1.05); }
.cat-card .img-wrap::after { content: ''; position: absolute; inset: 0; background: linear-gradient(transparent 60%, rgba(0,0,0,0.4)); }
.cat-card .body { padding: 24px; }
.cat-card .body h3 { font-size: 1.15rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.cat-card .body p { font-size: 0.92rem; color: var(--text-light); line-height: 1.7; margin-bottom: 16px; }
.cat-card .body .tag { display: inline-block; padding: 4px 14px; border-radius: 50px; background: rgba(232,168,56,0.12); color: var(--accent-dark); font-size: 0.8rem; font-weight: 600; }

/* list板块 */
.list-wrap { background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 32px; border: 1px solid var(--border); }
.list-item { display: flex; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.list-item:last-child { border-bottom: none; }
.list-item .thumb { width: 120px; height: 80px; border-radius: var(--radius-sm); overflow: hidden; flex-shrink: 0; }
.list-item .thumb img { width: 100%; height: 100%; object-fit: cover; }
.list-item .info { flex: 1; min-width: 200px; }
.list-item .info h4 { font-size: 1.05rem; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.list-item .info h4 a { color: inherit; }
.list-item .info h4 a:hover { color: var(--accent); }
.list-item .info p { font-size: 0.9rem; color: var(--text-light); line-height: 1.6; margin-bottom: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.list-item .meta { display: flex; gap: 16px; font-size: 0.82rem; color: var(--text-light); flex-wrap: wrap; }
.list-item .meta span { display: flex; align-items: center; gap: 4px; }
.list-item .meta .cat { color: var(--accent-dark); font-weight: 600; }
.empty-msg { text-align: center; padding: 40px 0; color: var(--text-light); font-size: 1rem; }

/* flow */
.flow-grid { display: flex; flex-wrap: wrap; gap: 24px; justify-content: center; counter-reset: step; }
.flow-step { flex: 1 1 180px; max-width: 220px; text-align: center; position: relative; padding: 32px 16px; }
.flow-step::before { counter-increment: step; content: counter(step); position: absolute; top: -8px; left: 50%; transform: translateX(-50%); width: 40px; height: 40px; border-radius: 50%; background: var(--accent); color: var(--primary-dark); font-weight: 800; font-size: 1.1rem; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 12px rgba(232,168,56,0.3); }
.flow-step .icon { font-size: 2.4rem; color: var(--primary); margin-bottom: 16px; margin-top: 24px; }
.flow-step h4 { font-size: 1rem; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.flow-step p { font-size: 0.88rem; color: var(--text-light); line-height: 1.6; }
.flow-step:not(:last-child)::after { content: ''; position: absolute; top: 14px; right: -20px; width: 24px; height: 2px; background: var(--border); display: none; }
@media (min-width: 768px) { .flow-step:not(:last-child)::after { display: block; } }

/* faq */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--bg-card); border-radius: var(--radius-sm); margin-bottom: 12px; box-shadow: var(--shadow); border: 1px solid var(--border); overflow: hidden; }
.faq-item .q { padding: 18px 24px; font-weight: 600; color: var(--primary); cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: var(--transition); }
.faq-item .q:hover { background: rgba(26,58,92,0.03); }
.faq-item .q i { transition: var(--transition); color: var(--text-light); }
.faq-item.open .q i { transform: rotate(180deg); }
.faq-item .a { padding: 0 24px 18px; color: var(--text-light); font-size: 0.95rem; line-height: 1.8; display: none; }
.faq-item.open .a { display: block; }

/* cta */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  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: 0.08; mix-blend-mode: overlay; }
.cta-section .container { position: relative; z-index: 2; text-align: center; padding: 80px 24px; }
.cta-section h2 { font-size: 2.2rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.8); max-width: 560px; margin: 0 auto 32px; }
.cta-section .btn-primary { font-size: 1.1rem; padding: 18px 44px; }

/* footer */
.footer { background: var(--primary-dark); color: rgba(255,255,255,0.7); padding: 48px 0 24px; }
.footer .grid-x { align-items: start; }
.footer h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
.footer p, .footer a { font-size: 0.9rem; color: rgba(255,255,255,0.6); line-height: 1.8; }
.footer a:hover { color: var(--accent); }
.footer .logo { margin-bottom: 16px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 6px; }
.footer-links li a { display: flex; align-items: center; gap: 6px; }
.footer .bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; margin-top: 36px; text-align: center; font-size: 0.85rem; color: rgba(255,255,255,0.4); }

/* responsive */
@media (max-width: 1024px) {
  .hero h1 { font-size: 2.6rem; }
  .cell-4 { width: 50%; }
}
@media (max-width: 768px) {
  .hamburger { display: block; }
  .nav-list { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--primary-dark); flex-direction: column; padding: 16px 24px; gap: 4px; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .nav-list.open { display: flex; }
  .nav-list li a { padding: 12px 16px; width: 100%; }
  .nav-list li a.active::after { display: none; }
  .nav-cta a { width: 100%; justify-content: center; }
  .hero { min-height: 70vh; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }
  .hero-stats { gap: 24px; }
  .hero-stat .num { font-size: 1.8rem; }
  .section { padding: 48px 0; }
  .section-title { font-size: 1.6rem; }
  .cell-6, .cell-4, .cell-3 { width: 100%; }
  .list-item .thumb { width: 80px; height: 64px; }
  .intro-card, .cat-card { flex: 1 1 100%; max-width: 100%; }
  .flow-step { flex: 1 1 140px; }
  .cta-section h2 { font-size: 1.6rem; }
  .footer .cell { margin-bottom: 24px; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 1.6rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .container { padding: 0 16px; }
  .section { padding: 32px 0; }
  .list-wrap { padding: 16px; }
  .list-item { flex-direction: column; }
  .list-item .thumb { width: 100%; height: 140px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2a4a7f;
            --accent: #f4a261;
            --bg-light: #f8f9fa;
            --bg-dark: #1a1a2e;
            --text-dark: #1d1d1f;
            --text-muted: #6c757d;
            --text-light: #f8f9fa;
            --border-color: #e5e7eb;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
            --transition: all 0.30s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::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-dark);
            background: var(--bg-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }

        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
            width: 100%;
        }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            display: flex;
            align-items: center;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }
        .logo i {
            font-size: 1.8rem;
            color: var(--primary);
        }
        .logo span {
            color: var(--secondary);
            letter-spacing: 0.5px;
        }
        .logo:hover {
            opacity: 0.9;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-list li a {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-dark);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-list li a i {
            font-size: 0.9rem;
            opacity: 0.7;
        }
        .nav-list li a:hover {
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
        }
        .nav-list li a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.30);
        }
        .nav-list li a.active i {
            opacity: 1;
        }
        .nav-list li.nav-cta a {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 0.5rem 1.4rem;
            border-radius: 50px;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
            font-weight: 600;
        }
        .nav-list li.nav-cta a:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.40);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .hamburger:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        /* ===== Hero / 分类横幅 ===== */
        .category-hero {
            margin-top: var(--header-height);
            padding: 5rem 0 4rem;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #16213e 50%, #0f3460 100%);
            position: relative;
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 1rem;
            letter-spacing: -0.5px;
        }
        .category-hero h1 i {
            color: var(--accent);
            margin-right: 0.5rem;
        }
        .category-hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.80);
            max-width: 640px;
            margin-bottom: 1.8rem;
            line-height: 1.6;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .hero-badges .badge {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            padding: 0.4rem 1.2rem;
            border-radius: 50px;
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.20);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 4.5rem 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.6rem;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin-bottom: 2.5rem;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin-bottom: 1.8rem;
        }
        .text-center .section-divider {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 卡片网格 ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.8rem;
        }

        .card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: transparent;
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            display: block;
        }
        .card-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-dark);
        }
        .card-body h3 a {
            color: inherit;
        }
        .card-body h3 a:hover {
            color: var(--primary);
        }
        .card-body p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }
        .card-footer {
            padding: 0 1.5rem 1.2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
        }
        .card-tag {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            background: rgba(230, 57, 70, 0.10);
            color: var(--primary);
        }
        .card-tag.guide {
            background: rgba(26, 53, 87, 0.10);
            color: var(--secondary);
        }
        .card-tag.tip {
            background: rgba(244, 162, 97, 0.15);
            color: #b8773a;
        }
        .card-date {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== 图文区块 ===== */
        .feature-block {
            display: flex;
            gap: 3rem;
            align-items: center;
        }
        .feature-block.reverse {
            flex-direction: row-reverse;
        }
        .feature-block .feature-img {
            flex: 0 0 48%;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            max-height: 400px;
            object-fit: cover;
        }
        .feature-block .feature-content {
            flex: 1;
        }
        .feature-block .feature-content h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: var(--text-dark);
        }
        .feature-block .feature-content p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.2rem;
        }

        /* ===== 攻略列表 ===== */
        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .guide-item {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            background: #fff;
            padding: 1.2rem 1.5rem;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .guide-item:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow);
            border-color: transparent;
        }
        .guide-item .guide-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.3;
            min-width: 40px;
        }
        .guide-item .guide-info {
            flex: 1;
        }
        .guide-item .guide-info h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.2rem;
            color: var(--text-dark);
        }
        .guide-item .guide-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }
        .guide-item .guide-badge {
            font-size: 0.8rem;
            padding: 0.2rem 1rem;
            border-radius: 50px;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            font-weight: 500;
            white-space: nowrap;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem 2rem;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            padding: 1.4rem 1.6rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: transparent;
        }
        .faq-item h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .faq-item h4 i {
            color: var(--primary);
            font-size: 0.9rem;
        }
        .faq-item p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, #0f1a30 100%);
            padding: 4rem 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 center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.80);
            max-width: 560px;
            margin: 0 auto 2rem;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.9rem 2.4rem;
            border-radius: 50px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 1.1rem;
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.40);
            transition: var(--transition);
        }
        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(230, 57, 70, 0.50);
            color: #fff;
            background: var(--primary-dark);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 3rem 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-brand .logo {
            margin-bottom: 0.8rem;
        }
        .footer-brand .logo span {
            color: #fff;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.60);
            max-width: 300px;
            line-height: 1.6;
        }
        .footer h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer ul li {
            margin-bottom: 0.4rem;
        }
        .footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-block {
                flex-direction: column;
            }
            .feature-block.reverse {
                flex-direction: column;
            }
            .feature-block .feature-img {
                flex: auto;
                width: 100%;
                max-height: 300px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 1rem 1.5rem;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow);
                gap: 0.2rem;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                width: 100%;
                padding: 0.8rem 1rem;
            }
            .nav-list li.nav-cta a {
                width: 100%;
                justify-content: center;
                margin-top: 0.4rem;
            }

            .category-hero h1 {
                font-size: 2.2rem;
            }
            .category-hero p {
                font-size: 1rem;
            }

            .section-title {
                font-size: 1.7rem;
            }
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }

            .faq-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .cta-section h2 {
                font-size: 1.8rem;
            }

            .guide-item {
                flex-wrap: wrap;
            }
            .guide-item .guide-num {
                min-width: 30px;
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .category-hero {
                min-height: 300px;
                padding: 3.5rem 0 2.5rem;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .card-img {
                height: 160px;
            }
            .section {
                padding: 3rem 0;
            }
            .logo {
                font-size: 1.2rem;
            }
            .logo i {
                font-size: 1.4rem;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

/* roulang page: article */
:root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2440;
            --secondary: #e8a838;
            --secondary-light: #f0c060;
            --secondary-dark: #c88a20;
            --accent: #d4562a;
            --bg-light: #f8f6f2;
            --bg-dark: #1a1a2e;
            --text: #2c2c3e;
            --text-light: #6e6e82;
            --text-white: #fefefe;
            --border: #e0ddd8;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            color: var(--text);
            background: var(--bg-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .header {
            background: var(--bg-dark);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-white);
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.5px;
        }
        .logo i {
            color: var(--secondary);
            font-size: 1.8rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.9;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
        }
        .nav-list li a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 10px;
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .nav-list li a i {
            font-size: 0.9rem;
        }
        .nav-list li a:hover,
        .nav-list li a:focus-visible {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-white);
        }
        .nav-list li a.active {
            background: rgba(232, 168, 56, 0.2);
            color: var(--secondary);
        }
        .nav-list li.nav-cta a {
            background: var(--secondary);
            color: var(--bg-dark);
            font-weight: 700;
            padding: 10px 24px;
            border-radius: 30px;
            box-shadow: 0 4px 16px rgba(232, 168, 56, 0.35);
        }
        .nav-list li.nav-cta a:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 168, 56, 0.45);
        }
        @media (max-width: 860px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 12px;
                gap: 4px;
                padding-bottom: 8px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 12px 18px;
                width: 100%;
                border-radius: 8px;
            }
            .nav-list li.nav-cta a {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Article Hero ===== */
        .article-hero {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-dark) 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .article-hero .container {
            position: relative;
            z-index: 1;
        }
        .article-hero .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            margin-bottom: 20px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }
        .article-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .article-hero .breadcrumb a:hover {
            color: var(--secondary);
        }
        .article-hero .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.3);
        }
        .article-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            max-width: 900px;
            margin-bottom: 16px;
        }
        .article-hero .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
        }
        .article-hero .meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-hero .meta i {
            color: var(--secondary);
        }
        .article-hero .category-badge {
            display: inline-block;
            background: var(--secondary);
            color: var(--bg-dark);
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .article-hero {
                padding: 40px 0 30px;
            }
            .article-hero h1 {
                font-size: 1.6rem;
            }
            .article-hero .meta {
                gap: 12px;
                font-size: 0.85rem;
            }
        }

        /* ===== Article Content ===== */
        .article-main {
            padding: 50px 0 60px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        .article-body {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 44px;
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text);
        }
        .article-body p {
            margin-bottom: 1.2em;
        }
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            color: var(--primary);
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-top: 1.4em;
            margin-bottom: 0.5em;
            color: var(--primary-light);
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1.2em;
            padding-left: 1.6em;
        }
        .article-body li {
            margin-bottom: 0.4em;
        }
        .article-body blockquote {
            border-left: 4px solid var(--secondary);
            background: var(--bg-light);
            padding: 16px 24px;
            margin: 1.2em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
        }
        .article-body img {
            border-radius: var(--radius-sm);
            margin: 1.2em 0;
            box-shadow: var(--shadow);
        }
        .article-body a {
            color: var(--secondary-dark);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body a:hover {
            color: var(--accent);
        }
        .article-body .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 2em;
            padding-top: 1.5em;
            border-top: 1px solid var(--border);
        }
        .article-body .tag-list a {
            display: inline-block;
            background: var(--bg-light);
            color: var(--text-light);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            text-decoration: none;
            transition: var(--transition);
        }
        .article-body .tag-list a:hover {
            background: var(--secondary);
            color: var(--bg-dark);
        }
        .article-body .not-found {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-light);
        }
        .article-body .not-found i {
            font-size: 3rem;
            color: var(--border);
            margin-bottom: 16px;
        }
        .article-body .not-found a {
            display: inline-block;
            margin-top: 16px;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: 30px;
            text-decoration: none;
        }
        .article-body .not-found a:hover {
            background: var(--primary-light);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 24px;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: var(--secondary);
        }
        .sidebar-card ul {
            list-style: none;
            margin: 0;
        }
        .sidebar-card ul li {
            border-bottom: 1px solid var(--border);
            padding: 10px 0;
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.4;
        }
        .sidebar-card ul li a:hover {
            color: var(--secondary-dark);
        }
        .sidebar-card ul li a i {
            color: var(--secondary);
            font-size: 0.8rem;
            margin-top: 4px;
        }
        .sidebar-card .thumb-list li a {
            align-items: center;
        }
        .sidebar-card .thumb-list li a img {
            width: 60px;
            height: 60px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .sidebar-card .cta-box {
            text-align: center;
        }
        .sidebar-card .cta-box p {
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 16px;
        }
        .sidebar-card .cta-btn {
            display: inline-block;
            background: var(--secondary);
            color: var(--bg-dark);
            font-weight: 700;
            padding: 12px 32px;
            border-radius: 30px;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(232, 168, 56, 0.3);
        }
        .sidebar-card .cta-btn:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 168, 56, 0.4);
        }
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .article-body {
                padding: 28px 24px;
            }
        }
        @media (max-width: 768px) {
            .article-body {
                padding: 20px 16px;
                font-size: 0.98rem;
            }
            .sidebar-card {
                padding: 20px 16px;
            }
        }

        /* ===== CTA Section ===== */
        .article-cta {
            background: linear-gradient(135deg, var(--bg-dark), var(--primary-dark));
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .article-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .article-cta .container {
            position: relative;
            z-index: 1;
        }
        .article-cta h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .article-cta p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .article-cta .cta-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .article-cta .btn-primary {
            background: var(--secondary);
            color: var(--bg-dark);
            font-weight: 700;
            padding: 14px 36px;
            border-radius: 30px;
            font-size: 1.05rem;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(232, 168, 56, 0.35);
        }
        .article-cta .btn-primary:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(232, 168, 56, 0.5);
        }
        .article-cta .btn-outline {
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: var(--text-white);
            font-weight: 600;
            padding: 14px 36px;
            border-radius: 30px;
            font-size: 1.05rem;
            transition: var(--transition);
        }
        .article-cta .btn-outline:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: rgba(232, 168, 56, 0.1);
        }
        @media (max-width: 768px) {
            .article-cta h2 {
                font-size: 1.5rem;
            }
            .article-cta p {
                font-size: 0.95rem;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
            font-size: 1.3rem;
        }
        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.6;
            max-width: 320px;
        }
        .footer h4 {
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer ul {
            list-style: none;
            margin: 0;
        }
        .footer ul li {
            margin-bottom: 8px;
        }
        .footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer ul li a:hover {
            color: var(--secondary);
        }
        .footer .social-links {
            display: flex;
            gap: 12px;
            margin-top: 12px;
        }
        .footer .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer .social-links a:hover {
            background: var(--secondary);
            color: var(--bg-dark);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        @media (max-width: 860px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer .social-links {
                justify-content: center;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2a4a7a;
            --accent: #f4a261;
            --accent-light: #f9c784;
            --bg-light: #f8f9fa;
            --bg-dark: #0d1b2a;
            --bg-card: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8a8aaa;
            --text-white: #ffffff;
            --border-color: #e8e8f0;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --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, 0.15);
            --shadow-hover: 0 16px 48px rgba(230, 57, 70, 0.18);
            --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 76px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        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;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            height: var(--header-height);
            display: flex;
            align-items: center;
            box-shadow: 0 1px 12px rgba(0, 0, 0, 0.04);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--primary);
            font-size: 28px;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.85;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 28px;
            color: var(--text-primary);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .hamburger:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
            padding: 0;
        }
        .nav-list li {
            margin: 0;
        }
        .nav-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a i {
            font-size: 16px;
        }
        .nav-list a:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }
        .nav-list a.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.10);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .nav-list .nav-cta a {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--text-white) !important;
            padding: 10px 28px;
            border-radius: var(--radius-md);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.30);
            font-weight: 700;
        }
        .nav-list .nav-cta a:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.40);
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        }
        .nav-list .nav-cta a i {
            font-size: 14px;
        }

        /* ===== Hero / Banner (内页) ===== */
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--secondary) 60%, var(--secondary-light) 100%);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.20;
            mix-blend-mode: overlay;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 48px;
            font-weight: 900;
            color: var(--text-white);
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 16px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.30);
        }
        .page-banner h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .page-banner p {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 700px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }
        .page-banner .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }
        .page-banner .banner-tags span {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            padding: 6px 20px;
            border-radius: 40px;
            color: var(--text-white);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.20);
        }
        .page-banner .banner-tags span i {
            margin-right: 6px;
            color: var(--accent);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            padding: 20px 0 12px;
            font-size: 14px;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--text-light);
            margin: 0 6px;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            line-height: 1.25;
        }
        .section-header h2 i {
            color: var(--primary);
            margin-right: 8px;
        }
        .section-header p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-header .divider {
            width: 64px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            margin: 16px auto 0;
        }

        .section-bg-light {
            background: var(--bg-light);
        }
        .section-bg-white {
            background: #ffffff;
        }
        .section-bg-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-bg-dark .section-header h2 {
            color: var(--text-white);
        }
        .section-bg-dark .section-header p {
            color: rgba(255, 255, 255, 0.70);
        }
        .section-bg-dark .section-header .divider {
            background: linear-gradient(90deg, var(--accent), var(--primary-light));
        }

        /* ===== 卡片网格 ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 24px 28px 28px;
        }
        .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .card-body h3 a {
            color: inherit;
        }
        .card-body h3 a:hover {
            color: var(--primary);
        }
        .card-body p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .card-body .card-meta i {
            margin-right: 4px;
        }
        .card-body .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(230, 57, 70, 0.10);
            color: var(--primary);
        }
        .card-body .badge.accent {
            background: rgba(244, 162, 97, 0.15);
            color: #c77d3a;
        }
        .card-body .badge.green {
            background: rgba(46, 204, 113, 0.12);
            color: #1a9c5e;
        }

        /* ===== 特色列表项 ===== */
        .feature-list {
            display: grid;
            gap: 24px;
        }
        .feature-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .feature-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .feature-item .icon-box {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        }
        .feature-item .icon-box.accent {
            background: linear-gradient(135deg, var(--accent), #e07a3a);
        }
        .feature-item .icon-box.secondary {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
        }
        .feature-item .icon-box.green {
            background: linear-gradient(135deg, #2ecc71, #1a9c5e);
        }
        .feature-item h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .feature-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== 步骤 / 流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--text-white);
            font-weight: 800;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.30);
        }
        .step-card .step-icon {
            font-size: 40px;
            color: var(--primary);
            margin-bottom: 16px;
            margin-top: 8px;
        }
        .step-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.10);
            transform: translateY(-4px);
        }
        .stat-item .stat-number {
            font-size: 42px;
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.2;
            letter-spacing: -1px;
        }
        .stat-item .stat-number i {
            color: var(--accent);
            font-size: 32px;
            margin-right: 6px;
        }
        .stat-item .stat-label {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.70);
            margin-top: 8px;
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            padding: 20px 28px;
            font-weight: 700;
            font-size: 17px;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i {
            color: var(--primary);
            font-size: 18px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question:hover {
            background: rgba(230, 57, 70, 0.03);
        }
        .faq-answer {
            padding: 0 28px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 16px 48px;
            border-radius: var(--radius-md);
            background: var(--text-white);
            color: var(--primary) !important;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.20);
            transition: var(--transition);
        }
        .cta-section .cta-btn:hover {
            transform: translateY(-4px) scale(1.02);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.30);
        }
        .cta-section .cta-btn i {
            transition: var(--transition);
        }
        .cta-section .cta-btn:hover i {
            transform: translateX(4px);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            padding: 56px 0 32px;
            color: rgba(255, 255, 255, 0.70);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: var(--text-white);
            font-size: 22px;
            margin-bottom: 16px;
        }
        .footer-brand .logo span {
            -webkit-text-fill-color: var(--text-white);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer h4 {
            color: var(--text-white);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            display: inline-block;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }
        .footer .social-links {
            display: flex;
            gap: 12px;
            margin-top: 12px;
        }
        .footer .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: rgba(255, 255, 255, 0.70);
            transition: var(--transition);
            padding: 0;
        }
        .footer .social-links a:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-3px) scale(1.05);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.50);
            font-size: 13px;
            padding: 0;
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-banner h1 {
                font-size: 38px;
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px 24px;
                gap: 4px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.10);
                border-bottom: 1px solid var(--border-color);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                padding: 12px 20px;
                font-size: 16px;
            }
            .nav-list a.active::after {
                display: none;
            }
            .nav-list .nav-cta {
                margin-top: 8px;
            }
            .nav-list .nav-cta a {
                justify-content: center;
            }

            .page-banner {
                padding: 80px 0 60px;
                min-height: 280px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .page-banner p {
                font-size: 16px;
            }

            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .section-header p {
                font-size: 16px;
            }

            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .faq-question {
                font-size: 15px;
                padding: 16px 20px;
            }
            .faq-answer {
                padding: 0 20px 16px;
                font-size: 14px;
            }

            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section .cta-btn {
                padding: 14px 32px;
                font-size: 16px;
            }
        }

        @media (max-width: 520px) {
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .page-banner .banner-tags span {
                font-size: 12px;
                padding: 4px 14px;
            }
            .container {
                padding: 0 16px;
            }
            .card-body {
                padding: 18px 20px 22px;
            }
            .card-body h3 {
                font-size: 18px;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }