/* roulang page: index */
:root {
  --primary: #0d1b2a;
  --primary-light: #1b3a5c;
  --primary-dark: #070e18;
  --accent: #d4a853;
  --accent-light: #f0c674;
  --accent-dark: #b88d3a;
  --text: #e8e0d0;
  --text-muted: #9a8a7a;
  --text-dark: #1a1a2e;
  --bg: #0a0f1a;
  --bg-card: rgba(20, 30, 50, 0.75);
  --bg-card-hover: rgba(30, 45, 70, 0.85);
  --bg-section: rgba(10, 15, 26, 0.95);
  --border: rgba(212, 168, 83, 0.2);
  --border-light: rgba(212, 168, 83, 0.12);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --max-width: 1200px;
  --header-height: 80px;
}
*, *::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);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-light); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }
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: #fff; }
h1 { font-size: clamp(2.2rem, 6vw, 4rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 0.5rem; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
p { margin-bottom: 1rem; color: var(--text); }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-dark { background: var(--bg-section); }
.section-title { text-align: center; margin-bottom: 16px; }
.section-subtitle { text-align: center; color: var(--text-muted); font-size: 1.1rem; max-width: 640px; margin: 0 auto 48px; }
.text-accent { color: var(--accent); }
.text-muted { color: var(--text-muted); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 32px; border-radius: var(--radius-md); font-weight: 600;
  font-size: 1rem; border: none; cursor: pointer; transition: var(--transition);
  text-decoration: none; line-height: 1.4;
}
.btn-primary { background: var(--accent); color: var(--primary); }
.btn-primary:hover { background: var(--accent-light); color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,168,83,0.3); }
.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-lg { padding: 16px 40px; font-size: 1.1rem; border-radius: var(--radius-lg); }
.badge {
  display: inline-block; padding: 4px 14px; border-radius: 50px;
  font-size: 0.8rem; font-weight: 500; background: rgba(212,168,83,0.15);
  color: var(--accent); border: 1px solid var(--border);
}
.badge-light { background: rgba(255,255,255,0.08); color: var(--text); border-color: rgba(255,255,255,0.12); }
.card {
  background: var(--bg-card); border-radius: var(--radius-md); border: 1px solid var(--border-light);
  padding: 24px; transition: var(--transition); backdrop-filter: blur(8px);
}
.card:hover { background: var(--bg-card-hover); border-color: var(--border); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card-image { border-radius: var(--radius-sm) var(--radius-sm) 0 0; overflow: hidden; margin: -24px -24px 16px -24px; height: 200px; }
.card-image img { width: 100%; height: 100%; object-fit: cover; }
.card-title { font-size: 1.15rem; font-weight: 600; margin-bottom: 8px; color: #fff; }
.card-text { font-size: 0.95rem; color: var(--text-muted); line-height: 1.6; }
.card-meta { display: flex; align-items: center; gap: 12px; font-size: 0.85rem; color: var(--text-muted); margin-top: 12px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.fade-in { opacity: 0; transform: translateY(20px); animation: fadeInUp 0.6s ease forwards; }
@keyframes fadeInUp { to { opacity: 1; transform: translateY(0); } }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ===== Header / Nav ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-height); background: rgba(10, 15, 26, 0.92);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light); transition: var(--transition);
}
.header.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
.header .container { display: flex; align-items: center; justify-content: center; height: 100%; position: relative; }
.nav-left, .nav-right { display: flex; align-items: center; gap: 8px; }
.nav-left { position: absolute; left: 24px; }
.nav-right { position: absolute; right: 24px; }
.nav-link {
  padding: 8px 18px; border-radius: var(--radius-sm); font-weight: 500;
  font-size: 0.95rem; color: var(--text-muted); transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover { color: var(--accent); background: rgba(212,168,83,0.08); }
.nav-link.active { color: var(--accent); background: rgba(212,168,83,0.12); }
.logo {
  font-size: 1.5rem; font-weight: 800; color: #fff; letter-spacing: 1px;
  text-decoration: none; transition: var(--transition); white-space: nowrap;
}
.logo:hover { color: var(--accent); }
.logo span { color: var(--accent); }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; position: absolute; right: 24px; top: 50%; transform: translateY(-50%); }
.mobile-toggle span { display: block; width: 26px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }
.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== Hero / Banner ===== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  justify-content: center; text-align: center; padding-top: var(--header-height);
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(10,15,26,0.85) 0%, rgba(10,15,26,0.5) 50%, rgba(10,15,26,0.85) 100%);
}
.hero-content { position: relative; z-index: 1; max-width: 800px; padding: 0 24px; }
.hero-badge { margin-bottom: 20px; }
.hero h1 { margin-bottom: 16px; }
.hero h1 .highlight { color: var(--accent); }
.hero p { font-size: 1.2rem; color: var(--text); max-width: 600px; margin: 0 auto 32px; opacity: 0.85; }
.hero-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%); z-index: 1;
  color: var(--text-muted); font-size: 0.9rem; display: flex; flex-direction: column; align-items: center; gap: 8px; animation: bounceDown 2s infinite;
}
@keyframes bounceDown { 0%, 100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(8px); } }

/* ===== Intro Section ===== */
.intro-section { position: relative; }
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.intro-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.intro-image img { width: 100%; height: 400px; object-fit: cover; }
.intro-content h2 { margin-bottom: 20px; }
.intro-content p { font-size: 1.05rem; line-height: 1.8; }
.intro-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 32px; }
.stat-item { text-align: center; padding: 20px; background: var(--bg-card); border-radius: var(--radius-md); border: 1px solid var(--border-light); }
.stat-number { font-size: 2rem; font-weight: 800; color: var(--accent); display: block; }
.stat-label { font-size: 0.9rem; color: var(--text-muted); margin-top: 4px; }

/* ===== Articles / Posts ===== */
.articles-section { background: var(--bg-section); }
.article-card { display: flex; flex-direction: column; }
.article-card .card-image { position: relative; }
.article-card .card-category {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  padding: 4px 12px; border-radius: 50px; font-size: 0.75rem; font-weight: 600;
  background: var(--accent); color: var(--primary);
}
.article-card .card-body { flex: 1; display: flex; flex-direction: column; }
.article-card .card-body .card-title { font-size: 1.05rem; }
.article-card .card-body .card-text { flex: 1; }
.article-card .card-link { margin-top: 12px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
.article-card .card-link:hover { gap: 10px; }
.empty-posts { text-align: center; padding: 60px 24px; color: var(--text-muted); font-size: 1.1rem; grid-column: 1 / -1; }

/* ===== Features / Tips ===== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card { text-align: center; padding: 36px 24px; }
.feature-icon { width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 50%; background: rgba(212,168,83,0.12); display: flex; align-items: center; justify-content: center; font-size: 1.8rem; color: var(--accent); border: 1px solid var(--border); }
.feature-card h3 { margin-bottom: 12px; }
.feature-card p { font-size: 0.95rem; color: var(--text-muted); }

/* ===== Resources ===== */
.resources-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.resource-card { text-align: center; padding: 28px 16px; }
.resource-icon { font-size: 2.4rem; color: var(--accent); margin-bottom: 16px; }
.resource-card h4 { font-size: 1rem; margin-bottom: 8px; }
.resource-card p { font-size: 0.85rem; color: var(--text-muted); }

/* ===== FAQ ===== */
.faq-section { background: var(--bg-section); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: var(--border); }
.faq-question { padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; color: #fff; font-size: 1rem; transition: var(--transition); user-select: none; }
.faq-question:hover { color: var(--accent); }
.faq-question .faq-icon { font-size: 1.2rem; transition: var(--transition); color: var(--accent); }
.faq-item.active .faq-question .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; padding: 0 24px; }
.faq-item.active .faq-answer { max-height: 300px; padding: 0 24px 20px; }
.faq-answer p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 0; }

/* ===== CTA ===== */
.cta-section {
  position: relative; text-align: center; padding: 100px 0;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
}
.cta-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(10,15,26,0.9) 0%, rgba(10,15,26,0.6) 100%); }
.cta-content { position: relative; z-index: 1; max-width: 640px; margin: 0 auto; padding: 0 24px; }
.cta-content h2 { margin-bottom: 16px; }
.cta-content p { font-size: 1.1rem; margin-bottom: 32px; opacity: 0.9; }

/* ===== Footer ===== */
.footer { background: var(--primary-dark); border-top: 1px solid var(--border-light); padding: 48px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
.footer-brand .logo { font-size: 1.3rem; }
.footer-brand p { font-size: 0.9rem; color: var(--text-muted); margin-top: 12px; max-width: 300px; }
.footer h4 { font-size: 1rem; margin-bottom: 16px; color: #fff; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: 0.9rem; color: var(--text-muted); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { padding-top: 24px; border-top: 1px solid var(--border-light); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0; }
.footer-social { display: flex; gap: 12px; }
.footer-social a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; color: var(--text-muted); font-size: 1rem; transition: var(--transition); }
.footer-social a:hover { background: var(--accent); color: var(--primary); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .resources-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-left, .nav-right { display: none; }
  .mobile-toggle { display: flex; }
  .header .container { justify-content: center; }
  .mobile-menu {
    position: fixed; top: var(--header-height); left: 0; right: 0; bottom: 0;
    background: rgba(10,15,26,0.98); backdrop-filter: blur(20px);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 20px; transform: translateX(100%); transition: transform 0.35s ease;
    z-index: 999;
  }
  .mobile-menu.open { transform: translateX(0); }
  .mobile-menu .nav-link { font-size: 1.3rem; padding: 12px 32px; }
  .grid-2, .grid-3, .features-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .intro-grid { grid-template-columns: 1fr; }
  .intro-image { order: -1; }
  .intro-stats { grid-template-columns: repeat(3, 1fr); }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }
  .section { padding: 56px 0; }
  .resources-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-brand p { max-width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .stat-number { font-size: 1.6rem; }
}
@media (max-width: 520px) {
  .intro-stats { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn-lg { width: 100%; }
  .container { padding: 0 16px; }
  .section { padding: 40px 0; }
  .card { padding: 16px; }
  .card-image { margin: -16px -16px 12px -16px; height: 160px; }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a4a;
            --primary-light: #2c4a7c;
            --primary-dark: #0f1a30;
            --accent: #e8b84b;
            --accent-light: #f0d080;
            --accent-dark: #c9a030;
            --bg-body: #f8f6f2;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f1a30;
            --bg-section: #f0ede8;
            --text-primary: #1a1a1a;
            --text-body: #2d2d2d;
            --text-muted: #6b6b6b;
            --text-light: #f0f0f0;
            --text-accent: #e8b84b;
            --border-color: #e0ddd8;
            --border-light: #f0eee8;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26,42,74,0.06);
            --shadow-md: 0 6px 24px rgba(26,42,74,0.10);
            --shadow-lg: 0 16px 48px rgba(26,42,74,0.14);
            --shadow-xl: 0 24px 64px rgba(26,42,74,0.18);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
            --container: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
            padding-top: var(--nav-height);
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: 1rem; outline: none; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-primary); font-weight: 700; line-height: 1.3; }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100%;
            position: relative;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 4px;
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
        }
        .logo span { color: var(--accent); }
        .logo:hover { color: var(--primary); opacity: 0.9; }
        .nav-center {
            display: flex;
            align-items: center;
            gap: 36px;
            height: 100%;
        }
        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            padding: 8px 0;
            position: relative;
            transition: var(--transition);
            letter-spacing: 0.3px;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: var(--transition);
            border-radius: 2px;
        }
        .nav-link:hover { color: var(--primary); }
        .nav-link:hover::after { width: 100%; }
        .nav-link.active { color: var(--primary); }
        .nav-link.active::after { width: 100%; }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            background: transparent;
            border: none;
        }
        .nav-toggle span {
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

        /* ===== 移动端导航 ===== */
        @media (max-width: 768px) {
            .nav-center {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                gap: 0;
                padding: 16px 0;
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
                box-shadow: var(--shadow-lg);
            }
            .nav-center.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-center .nav-link {
                padding: 14px 24px;
                width: 100%;
                text-align: center;
                border-bottom: 1px solid var(--border-light);
                font-size: 1.05rem;
            }
            .nav-center .nav-link:last-child { border-bottom: none; }
            .nav-center .nav-link::after { display: none; }
            .nav-toggle { display: flex; }
            .logo { font-size: 1.25rem; left: 16px; }
            .header .container { justify-content: space-between; }
        }
        @media (max-width: 480px) {
            .logo { font-size: 1.1rem; }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            background: var(--bg-section);
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .breadcrumb a { color: var(--primary-light); }
        .breadcrumb a:hover { color: var(--accent); }
        .breadcrumb .sep { color: var(--border-color); user-select: none; }

        /* ===== Article Hero ===== */
        .article-hero {
            background: var(--primary);
            background-image: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 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;
            mix-blend-mode: overlay;
        }
        .article-hero .container { position: relative; z-index: 1; }
        .article-hero .post-category {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .article-hero h1 {
            font-size: 2.4rem;
            color: #fff;
            max-width: 860px;
            line-height: 1.3;
            margin-bottom: 16px;
            font-weight: 800;
            letter-spacing: 0.5px;
        }
        .article-hero .post-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255,255,255,0.75);
            font-size: 0.9rem;
        }
        .article-hero .post-meta span { display: flex; align-items: center; gap: 6px; }

        /* ===== 文章正文 ===== */
        .article-main {
            padding: 50px 0 60px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
        }
        .article-body {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-body);
        }
        .article-body .content p {
            margin-bottom: 1.4em;
        }
        .article-body .content h2 {
            font-size: 1.6rem;
            margin: 1.8em 0 0.6em;
            color: var(--primary);
        }
        .article-body .content h3 {
            font-size: 1.25rem;
            margin: 1.6em 0 0.5em;
            color: var(--primary-light);
        }
        .article-body .content ul, 
        .article-body .content ol {
            margin: 0 0 1.4em 1.6em;
        }
        .article-body .content li {
            margin-bottom: 0.4em;
            list-style: disc;
        }
        .article-body .content ol li { list-style: decimal; }
        .article-body .content img {
            border-radius: var(--radius-md);
            margin: 1.6em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content blockquote {
            border-left: 4px solid var(--accent);
            padding: 12px 20px;
            margin: 1.4em 0;
            background: var(--bg-section);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .article-body .content a { color: var(--accent-dark); font-weight: 500; }
        .article-body .content a:hover { color: var(--primary); text-decoration: underline; }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }
        .article-tags .tag {
            background: var(--bg-section);
            color: var(--text-muted);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .article-tags .tag:hover { background: var(--accent); color: var(--primary-dark); }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .sidebar-card .cover-img {
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .sidebar-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .sidebar-card .btn-outline {
            display: inline-block;
            margin-top: 12px;
            padding: 8px 20px;
            border: 1.5px solid var(--primary);
            border-radius: 30px;
            color: var(--primary);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .sidebar-card .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        .sidebar-related {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-related a {
            display: flex;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .sidebar-related a:last-child { border-bottom: none; }
        .sidebar-related a:hover { padding-left: 6px; }
        .sidebar-related a img {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .sidebar-related a .info {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-related a .info .title {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-related a .info .date {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== 空文章提示 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .not-found-box .icon {
            font-size: 4rem;
            color: var(--border-color);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 1.05rem;
        }
        .not-found-box .btn-back {
            display: inline-block;
            padding: 12px 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }

        /* ===== 底部导航 / CTA ===== */
        .article-nav-bottom {
            background: var(--bg-section);
            padding: 32px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .article-nav-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-nav-bottom a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
            color: var(--primary);
            padding: 8px 16px;
            border-radius: 30px;
            transition: var(--transition);
        }
        .article-nav-bottom a:hover { background: var(--bg-white); color: var(--accent-dark); }
        .article-nav-bottom .back-list {
            background: var(--primary);
            color: #fff;
            padding: 10px 28px;
        }
        .article-nav-bottom .back-list:hover { background: var(--primary-light); color: #fff; }

        /* ===== 相关文章 ===== */
        .related-section {
            padding: 50px 0 60px;
        }
        .related-section .section-title {
            text-align: center;
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .related-section .section-sub {
            text-align: center;
            color: var(--text-muted);
            margin-bottom: 36px;
            font-size: 1rem;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .related-card .card-body {
            padding: 18px 20px;
        }
        .related-card .card-body .cat {
            font-size: 0.8rem;
            color: var(--accent-dark);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .related-card .card-body h4 {
            font-size: 1.05rem;
            margin: 6px 0 8px;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .date {
            font-size: 0.8rem;
            color: var(--border-color);
            margin-top: 8px;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 60px 0 30px;
        }
        .footer .container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { position: static; transform: none; font-size: 1.5rem; color: #fff; margin-bottom: 12px; display: inline-block; }
        .footer-brand .logo span { color: var(--accent); }
        .footer-brand p { font-size: 0.92rem; line-height: 1.7; color: rgba(255,255,255,0.6); margin-top: 12px; max-width: 360px; }
        .footer h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; letter-spacing: 0.5px; }
        .footer-links { display: flex; flex-direction: column; gap: 10px; }
        .footer-links a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: var(--transition); }
        .footer-links a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.45);
        }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.6);
            font-size: 0.85rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--accent); color: var(--primary-dark); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .article-hero h1 { font-size: 1.6rem; }
            .article-body { padding: 24px 20px; }
            .article-body .content { font-size: 1rem; }
            .article-sidebar { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .article-nav-bottom .container { flex-direction: column; align-items: stretch; text-align: center; }
        }
        @media (max-width: 480px) {
            .article-hero { padding: 40px 0 30px; }
            .article-hero h1 { font-size: 1.3rem; }
            .article-body { padding: 16px 14px; }
            .breadcrumb .container { font-size: 0.8rem; flex-wrap: wrap; }
        }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mt-8 { margin-top: 8px; }
        .mb-8 { margin-bottom: 8px; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .gap-12 { gap: 12px; }
        .flex { display: flex; }
        .flex-wrap { flex-wrap: wrap; }
        .items-center { align-items: center; }
        .justify-center { justify-content: center; }

/* roulang page: category1 */
:root {
  --primary: #1a2a4a;
  --primary-light: #2c4a7c;
  --secondary: #d4a843;
  --secondary-light: #e8c974;
  --accent: #4a8fe0;
  --bg-dark: #0b1424;
  --bg-mid: #0f1a2e;
  --bg-card: #162240;
  --bg-light: #1c2d4a;
  --text-primary: #f0f4fa;
  --text-body: #c8d4e4;
  --text-weak: #8a9bb5;
  --text-dark: #1a2a4a;
  --border: #2a4060;
  --border-light: #3a5a80;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-sm: 0 4px 12px rgba(0,0,0,0.25);
  --shadow-glow: 0 0 30px rgba(212,168,67,0.15);
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-sans: 'Segoe UI','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  --container: 1200px;
  --gap: 32px;
  --gap-sm: 20px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:var(--font-sans);background:var(--bg-dark);color:var(--text-body);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:var(--secondary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--secondary-light)}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-sm)}
button,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border:none;border-radius:var(--radius);font-size:16px;font-weight:600;cursor:pointer;transition:var(--transition);font-family:var(--font-sans)}
.btn-primary{background:var(--secondary);color:var(--text-dark);box-shadow:0 4px 16px rgba(212,168,67,0.3)}
.btn-primary:hover{background:var(--secondary-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(212,168,67,0.4)}
.btn-primary:focus{outline:3px solid var(--secondary-light);outline-offset:2px}
.btn-outline{background:transparent;color:var(--text-primary);border:2px solid var(--border-light)}
.btn-outline:hover{background:var(--bg-light);border-color:var(--secondary);color:var(--secondary);transform:translateY(-2px)}
.btn-outline:focus{outline:3px solid var(--border-light);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gap)}
.section{padding:80px 0}
.section-header{text-align:center;margin-bottom:48px}
.section-header h2{font-size:36px;color:var(--text-primary);margin-bottom:12px;letter-spacing:1px}
.section-header p{font-size:18px;color:var(--text-weak);max-width:720px;margin:0 auto}
.section-header .badge{display:inline-block;padding:6px 18px;background:rgba(212,168,67,0.15);color:var(--secondary);border-radius:20px;font-size:14px;font-weight:500;margin-bottom:12px;border:1px solid rgba(212,168,67,0.2)}
.tag{display:inline-block;padding:4px 14px;background:rgba(74,143,224,0.12);color:var(--accent);border-radius:16px;font-size:13px;font-weight:500;border:1px solid rgba(74,143,224,0.15)}
.badge-secondary{display:inline-block;padding:4px 14px;background:rgba(212,168,67,0.12);color:var(--secondary);border-radius:16px;font-size:13px;font-weight:500;border:1px solid rgba(212,168,67,0.15);margin-right:6px;margin-bottom:6px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:var(--gap)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.card{background:var(--bg-card);border-radius:var(--radius);padding:28px;border:1px solid var(--border);transition:var(--transition)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--border-light)}
.card-img{width:100%;height:200px;object-fit:cover;border-radius:var(--radius-sm);margin-bottom:16px;background:var(--bg-light)}
.card h3{font-size:20px;color:var(--text-primary);margin-bottom:8px}
.card p{font-size:15px;color:var(--text-weak);margin-bottom:12px;line-height:1.6}
.card .tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
/* ===== Header & Nav ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(11,20,36,0.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(42,64,96,0.4);transition:var(--transition)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{font-size:24px;font-weight:800;color:var(--text-primary);letter-spacing:1px;transition:var(--transition)}
.logo span{color:var(--secondary)}
.logo:hover{opacity:0.9}
.nav-left,.nav-right{display:flex;align-items:center;gap:8px}
.nav-link{display:inline-flex;align-items:center;padding:8px 18px;border-radius:var(--radius-sm);font-size:15px;font-weight:500;color:var(--text-weak);transition:var(--transition);position:relative}
.nav-link:hover{color:var(--text-primary);background:rgba(255,255,255,0.06)}
.nav-link.active{color:var(--secondary);background:rgba(212,168,67,0.1)}
.nav-link.active::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:20px;height:2px;background:var(--secondary);border-radius:2px}
.mobile-toggle{display:none;background:none;border:none;color:var(--text-primary);font-size:24px;cursor:pointer;padding:8px;border-radius:var(--radius-sm)}
.mobile-toggle:hover{background:rgba(255,255,255,0.06)}
/* ===== Hero ===== */
.hero{position:relative;padding:160px 0 100px;overflow:hidden;min-height:480px;display:flex;align-items:center}
.hero-bg{position:absolute;top:0;left:0;right:0;bottom:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;z-index:0;filter:brightness(0.35) saturate(0.9)}
.hero-bg::after{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(180deg,rgba(11,20,36,0.7) 0%,rgba(11,20,36,0.9) 100%)}
.hero .container{position:relative;z-index:2;text-align:center}
.hero h1{font-size:52px;font-weight:800;color:var(--text-primary);margin-bottom:16px;letter-spacing:2px;line-height:1.2}
.hero h1 span{color:var(--secondary)}
.hero p{font-size:20px;color:var(--text-weak);max-width:680px;margin:0 auto 32px;line-height:1.6}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-breadcrumb{display:flex;justify-content:center;gap:8px;margin-bottom:20px;font-size:14px;color:var(--text-weak)}
.hero-breadcrumb a{color:var(--text-weak)}
.hero-breadcrumb a:hover{color:var(--secondary)}
.hero-breadcrumb .sep{color:var(--border-light)}
/* ===== Intro ===== */
.intro-section{position:relative}
.intro-section::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--border-light),transparent)}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.intro-image{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.intro-image img{width:100%;height:380px;object-fit:cover;transition:var(--transition)}
.intro-image:hover img{transform:scale(1.03)}
.intro-image::after{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,rgba(212,168,67,0.08),transparent 50%)}
.intro-text h2{font-size:32px;color:var(--text-primary);margin-bottom:16px}
.intro-text p{font-size:16px;color:var(--text-weak);margin-bottom:20px;line-height:1.8}
.intro-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}
.stat-item{text-align:center;padding:16px;background:var(--bg-card);border-radius:var(--radius-sm);border:1px solid var(--border)}
.stat-item .num{font-size:28px;font-weight:800;color:var(--secondary);display:block}
.stat-item .label{font-size:14px;color:var(--text-weak);margin-top:4px}
/* ===== Guide Cards ===== */
.guide-section{background:var(--bg-mid);position:relative}
.guide-section::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--border-light),transparent)}
.guide-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:var(--transition);display:flex;flex-direction:column}
.guide-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--border-light)}
.guide-card .card-img-top{width:100%;height:200px;object-fit:cover;background:var(--bg-light);transition:var(--transition)}
.guide-card:hover .card-img-top{transform:scale(1.02)}
.guide-card .card-body{padding:24px;flex:1;display:flex;flex-direction:column}
.guide-card .card-body h3{font-size:20px;color:var(--text-primary);margin-bottom:8px}
.guide-card .card-body p{font-size:15px;color:var(--text-weak);margin-bottom:16px;flex:1;line-height:1.7}
.guide-card .card-footer{padding:16px 24px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.guide-card .card-footer .meta{font-size:13px;color:var(--text-weak)}
.guide-card .card-footer .read-more{color:var(--secondary);font-weight:600;font-size:14px}
.guide-card .card-footer .read-more i{transition:var(--transition);margin-left:4px}
.guide-card .card-footer .read-more:hover i{transform:translateX(4px)}
/* ===== Tips ===== */
.tips-section{position:relative}
.tips-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.tip-item{display:flex;gap:20px;align-items:flex-start;padding:24px;background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);transition:var(--transition)}
.tip-item:hover{border-color:var(--border-light);transform:translateY(-2px)}
.tip-icon{width:48px;height:48px;min-width:48px;background:rgba(212,168,67,0.12);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--secondary);font-size:20px}
.tip-content h4{font-size:17px;color:var(--text-primary);margin-bottom:4px}
.tip-content p{font-size:14px;color:var(--text-weak);line-height:1.6}
/* ===== Resources ===== */
.resources-section{background:var(--bg-mid);position:relative}
.resources-section::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--border-light),transparent)}
.resource-card{background:var(--bg-card);border-radius:var(--radius);padding:24px;border:1px solid var(--border);transition:var(--transition);display:flex;flex-direction:column}
.resource-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--border-light)}
.resource-card .icon-wrap{width:56px;height:56px;background:rgba(74,143,224,0.1);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:24px;margin-bottom:16px}
.resource-card h4{font-size:18px;color:var(--text-primary);margin-bottom:6px}
.resource-card p{font-size:14px;color:var(--text-weak);margin-bottom:12px;flex:1;line-height:1.6}
.resource-card .tag{font-size:12px;padding:2px 12px}
/* ===== FAQ ===== */
.faq-section{position:relative}
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:var(--border-light)}
.faq-question{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;cursor:pointer;user-select:none;transition:var(--transition);gap:16px}
.faq-question h4{font-size:16px;color:var(--text-primary);font-weight:500;line-height:1.5}
.faq-question .faq-toggle{font-size:18px;color:var(--text-weak);transition:var(--transition);min-width:24px;text-align:center}
.faq-question.open .faq-toggle{transform:rotate(180deg);color:var(--secondary)}
.faq-answer{padding:0 24px 20px;display:none;font-size:15px;color:var(--text-weak);line-height:1.7}
.faq-answer.show{display:block}
.faq-item.open .faq-question{background:rgba(212,168,67,0.04)}
/* ===== CTA ===== */
.cta-section{position:relative;background:var(--bg-mid);overflow:hidden}
.cta-section::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--border-light),transparent)}
.cta-section::after{content:'';position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--border-light),transparent)}
.cta-box{position:relative;text-align:center;padding:60px 40px;background:linear-gradient(135deg,rgba(212,168,67,0.05),rgba(74,143,224,0.05));border-radius:var(--radius-lg);border:1px solid rgba(212,168,67,0.15)}
.cta-box h2{font-size:36px;color:var(--text-primary);margin-bottom:12px}
.cta-box p{font-size:18px;color:var(--text-weak);max-width:600px;margin:0 auto 28px}
.cta-box .btn-primary{font-size:17px;padding:14px 36px}
/* ===== Footer ===== */
.footer{background:var(--bg-mid);border-top:1px solid var(--border);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo{font-size:22px;display:inline-block;margin-bottom:12px}
.footer-brand p{font-size:14px;color:var(--text-weak);line-height:1.7;max-width:360px}
.footer h4{font-size:16px;color:var(--text-primary);margin-bottom:16px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-weak);transition:var(--transition)}
.footer-links a:hover{color:var(--secondary);padding-left:4px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid var(--border);font-size:14px;color:var(--text-weak)}
.footer-social{display:flex;gap:12px}
.footer-social a{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--bg-card);border-radius:50%;font-size:14px;color:var(--text-weak);border:1px solid var(--border);transition:var(--transition)}
.footer-social a:hover{background:var(--secondary);color:var(--text-dark);border-color:var(--secondary);transform:translateY(-2px)}
/* ===== Responsive ===== */
@media(max-width:1024px){
  .grid-4{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero h1{font-size:42px}
}
@media(max-width:768px){
  .mobile-toggle{display:block}
  .nav-left,.nav-right{display:none;position:absolute;top:72px;left:0;right:0;background:rgba(11,20,36,0.98);backdrop-filter:blur(16px);flex-direction:column;padding:16px;gap:4px;border-bottom:1px solid var(--border)}
  .nav-left.open,.nav-right.open{display:flex}
  .nav-right{top:calc(72px + 180px)}
  .nav-right.open{top:calc(72px + 180px)}
  .nav-link{padding:12px 18px;width:100%;justify-content:center}
  .hero{padding:140px 0 80px;min-height:400px}
  .hero h1{font-size:32px}
  .hero p{font-size:16px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .intro-grid{grid-template-columns:1fr;gap:24px}
  .intro-stats{grid-template-columns:repeat(3,1fr);gap:10px}
  .stat-item .num{font-size:22px}
  .tips-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .section-header h2{font-size:28px}
  .section-header p{font-size:16px}
  .cta-box{padding:40px 24px}
  .cta-box h2{font-size:28px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:12px;text-align:center}
  .intro-image img{height:240px}
  .guide-card .card-img-top{height:180px}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .hero h1{font-size:26px}
  .hero p{font-size:15px}
  .hero-actions{flex-direction:column;align-items:center}
  .btn{width:100%;max-width:280px}
  .intro-stats{grid-template-columns:1fr 1fr}
  .stat-item:last-child{grid-column:span 2}
  .section-header h2{font-size:24px}
  .tip-item{flex-direction:column;gap:12px;padding:18px}
  .tip-icon{width:40px;height:40px;min-width:40px;font-size:16px}
}