/* roulang page: index */
:root {
            --color-primary: #B23A48;
            --color-primary-dark: #8E2A36;
            --color-primary-soft: #F3DEE1;
            --color-accent: #A67C52;
            --color-bg: #FAF5EE;
            --color-bg-deep: #241D19;
            --color-surface: #FFFFFF;
            --color-surface-deep: #F1E8DC;
            --color-text: #2E2622;
            --color-text-muted: #6D5F55;
            --color-border: #E4D6C6;
            --radius-card: 18px;
            --radius-pill: 999px;
            --radius-sm: 8px;
            --shadow-card: 0 4px 20px rgba(46, 38, 34, 0.06);
            --shadow-hover: 0 12px 28px rgba(46, 38, 34, 0.12);
            --container-max: 1200px;
            --space-section: 96px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            font-size: 16px;
            padding-bottom: 64px;
        }

        h1, h2, h3, h4 {
            font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            color: var(--color-text);
            line-height: 1.3;
        }

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

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        a:hover {
            color: var(--color-primary-dark);
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .section {
            padding: var(--space-section) 0;
        }

        .text-muted {
            color: var(--color-text-muted);
        }

        /* 导航 */
        .site-nav {
            background-color: var(--color-bg);
            border-bottom: 2px solid var(--color-primary);
            position: relative;
            z-index: 50;
        }

        .nav-masthead {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem 0;
        }

        .nav-logo {
            font-family: "Noto Serif SC", serif;
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text);
            line-height: 1.2;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .nav-logo .dot {
            color: var(--color-primary);
        }

        .nav-tagline {
            border-left: 1px solid var(--color-border);
            padding-left: 1rem;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            letter-spacing: 0.05em;
            white-space: nowrap;
        }

        .nav-channel {
            display: flex;
            align-items: center;
            gap: 0;
            padding: 0.5rem 0;
            overflow-x: auto;
            scrollbar-width: none;
        }

        .nav-channel::-webkit-scrollbar {
            display: none;
        }

        .nav-channel a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text);
            padding: 0.4rem 1.2rem;
            border-right: 1px solid var(--color-border);
            white-space: nowrap;
            transition: color 0.2s;
        }

        .nav-channel a:first-child {
            padding-left: 0;
        }

        .nav-channel a:last-child {
            border-right: none;
        }

        .nav-channel a:hover {
            color: var(--color-accent);
        }

        .nav-channel a.active {
            color: var(--color-accent);
            font-weight: 700;
        }

        .nav-cta {
            margin-left: auto;
        }

        .btn-primary {
            display: inline-block;
            background-color: var(--color-primary);
            color: #fff;
            padding: 0.75rem 1.75rem;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            transition: background-color 0.25s, transform 0.15s, box-shadow 0.25s;
        }

        .btn-primary:hover {
            background-color: var(--color-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(178, 58, 72, 0.3);
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-primary:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-block;
            border: 2px solid var(--color-primary);
            background: transparent;
            color: var(--color-primary);
            padding: 0.65rem 1.6rem;
            border-radius: var(--radius-pill);
            font-weight: 600;
            transition: background-color 0.25s, color 0.25s;
        }

        .btn-outline:hover {
            background-color: var(--color-primary-soft);
            color: var(--color-primary-dark);
        }

        .btn-white-outline {
            display: inline-block;
            border: 2px solid rgba(255,255,255,0.7);
            background: transparent;
            color: #fff;
            padding: 0.65rem 1.6rem;
            border-radius: var(--radius-pill);
            font-weight: 600;
            transition: all 0.25s;
        }

        .btn-white-outline:hover {
            background-color: rgba(255,255,255,0.15);
            border-color: #fff;
            color: #fff;
        }

        /* 汉堡 */
        .burger {
            display: none;
            background: none;
            border: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
        }

        .burger span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 2px;
            transition: all 0.3s;
        }

        .mobile-menu {
            display: none;
            background-color: var(--color-bg);
            border-top: 1px solid var(--color-border);
            padding: 1rem 1.5rem;
            flex-direction: column;
            gap: 0.8rem;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            color: var(--color-text);
            font-size: 1.05rem;
            padding: 0.3rem 0;
        }

        .mobile-menu a.active {
            color: var(--color-primary);
            font-weight: 700;
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            isolation: isolate;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(36, 29, 25, 0.88) 0%, rgba(36, 29, 25, 0.75) 45%, rgba(36, 29, 25, 0.4) 100%);
            z-index: -1;
        }

        .hero-content {
            padding: 4rem 0;
            width: 100%;
        }

        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.5rem);
            color: #fff;
            font-weight: 800;
            line-height: 1.25;
            max-width: 720px;
            letter-spacing: 0.02em;
        }

        .hero h1 .highlight {
            color: #F3DEE1;
            border-bottom: 2px solid var(--color-primary);
        }

        .hero-sub {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin-top: 1.2rem;
            line-height: 1.8;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-top: 2rem;
        }

        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            color: rgba(255,255,255,0.75);
            font-size: 0.85rem;
            border: 1px solid rgba(255,255,255,0.2);
            padding: 0.3rem 1rem;
            border-radius: var(--radius-pill);
        }

        .hero-ctas {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 2.5rem;
        }

        .hero-pills {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 3rem;
            padding-bottom: 1rem;
        }

        .pill {
            display: inline-block;
            padding: 0.35rem 1.1rem;
            border-radius: var(--radius-pill);
            background-color: rgba(255,255,255,0.12);
            color: rgba(255,255,255,0.85);
            font-size: 0.85rem;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255,255,255,0.15);
            transition: background-color 0.2s, color 0.2s;
        }

        .pill:hover {
            background-color: rgba(255,255,255,0.25);
            color: #fff;
        }

        /* 卖点三连 */
        .features {
            background-color: var(--color-bg);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .feature-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-primary);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--color-primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 1rem;
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        .feature-link {
            display: inline-block;
            margin-top: 0.8rem;
            font-size: 0.9rem;
            font-weight: 600;
        }

        .feature-link::after {
            content: ' →';
            transition: margin-left 0.2s;
        }

        .feature-link:hover::after {
            margin-left: 4px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 0.1em;
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }

        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            margin-bottom: 0.8rem;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--color-text-muted);
            max-width: 640px;
            line-height: 1.8;
        }

        /* 场景演示 */
        .demo {
            background-color: var(--color-surface-deep);
        }

        .demo-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .demo-image-wrap {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

        .demo-image-wrap img {
            width: 100%;
            height: 400px;
            object-fit: cover;
        }

        .demo-tag {
            position: absolute;
            bottom: 1rem;
            right: 1rem;
            background-color: var(--color-accent);
            color: #fff;
            padding: 0.3rem 1rem;
            border-radius: var(--radius-pill);
            font-size: 0.8rem;
        }

        .demo-steps {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .demo-step {
            display: flex;
            gap: 1.2rem;
            padding: 1rem 0;
            position: relative;
        }

        .demo-step::before {
            content: '';
            position: absolute;
            left: 22px;
            top: 60px;
            bottom: -20px;
            width: 1px;
            border-left: 2px dashed var(--color-accent);
            opacity: 0.4;
        }

        .demo-step:last-child::before {
            display: none;
        }

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            border: 2px solid var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--color-primary);
            background-color: var(--color-surface);
            flex-shrink: 0;
            z-index: 1;
        }

        .step-content h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.2rem;
        }

        .step-content p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
        }

        /* 社会认同 */
        .social-proof {
            background-color: var(--color-bg);
        }

        .proof-metrics {
            display: flex;
            justify-content: space-around;
            margin-bottom: 3rem;
            padding: 2rem 0;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .metric {
            text-align: center;
        }

        .metric-num {
            font-family: "Noto Serif SC", serif;
            font-size: 3rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.1;
        }

        .metric-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-top: 0.3rem;
        }

        .proof-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .proof-card {
            background-color: var(--color-surface-deep);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            border: 1px solid var(--color-border);
        }

        .proof-card .stars {
            color: var(--color-accent);
            letter-spacing: 0.1em;
            margin-bottom: 0.6rem;
        }

        .proof-card blockquote {
            font-size: 0.95rem;
            line-height: 1.8;
            color: var(--color-text);
            border: none;
            padding: 0;
            margin-bottom: 1rem;
        }

        .proof-card .nickname {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

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

        .faq-list {
            max-width: 800px;
            margin: 2rem auto 0;
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 1rem;
            background-color: var(--color-surface);
            overflow: hidden;
            transition: border-color 0.3s;
        }

        .faq-item.active {
            border-color: var(--color-primary);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            user-select: none;
        }

        .faq-question .icon {
            color: var(--color-primary);
            font-size: 1.4rem;
            flex-shrink: 0;
            margin-left: 1rem;
            transition: transform 0.3s;
        }

        .faq-item.active .icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.95rem;
            color: var(--color-text-muted);
            line-height: 1.8;
        }

        .faq-more-link {
            text-align: center;
            margin-top: 1.5rem;
        }

        /* CTA 区 */
        .cta-floor {
            background-color: var(--color-bg-deep);
            text-align: center;
            padding: 5rem 0;
        }

        .cta-floor h2 {
            color: #fff;
            font-size: clamp(1.8rem, 3.5vw, 2.5rem);
            margin-bottom: 1rem;
        }

        .cta-floor p {
            color: rgba(255,255,255,0.7);
            max-width: 520px;
            margin: 0 auto 2rem;
            font-size: 1rem;
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--color-bg-deep);
            padding: 4rem 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            gap: 2rem;
            padding-bottom: 2rem;
        }

        .footer-brand p {
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            margin-top: 0.8rem;
            line-height: 1.8;
        }

        .footer-title {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
            font-family: "Noto Sans SC", sans-serif;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.5rem;
        }

        .footer-links a {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            transition: color 0.25s;
        }

        .footer-links a:hover {
            color: var(--color-primary-soft);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.15);
            padding: 1.5rem 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .footer-bottom p {
            color: rgba(255,255,255,0.5);
            font-size: 0.85rem;
        }

        /* 底部固定转化条 */
        .fixed-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background-color: rgba(36, 29, 25, 0.92);
            backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 0.5rem 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 56px;
        }

        .fixed-bar-text {
            color: rgba(255,255,255,0.85);
            font-size: 0.9rem;
        }

        .fixed-bar .btn-primary {
            padding: 0.5rem 1.2rem;
            font-size: 0.9rem;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: 1fr;
                max-width: 600px;
                margin: 0 auto;
            }

            .demo-layout {
                grid-template-columns: 1fr;
            }

            .proof-cards {
                grid-template-columns: 1fr;
                max-width: 600px;
                margin: 0 auto;
            }

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

        @media (max-width: 768px) {
            .nav-tagline {
                display: none;
            }

            .nav-channel {
                display: none;
            }

            .burger {
                display: flex;
            }

            .nav-cta {
                margin-left: auto;
            }

            .nav-cta .btn-primary {
                padding: 0.5rem 1.2rem;
                font-size: 0.9rem;
            }

            .hero {
                min-height: auto;
                padding: 3rem 0;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .proof-metrics {
                flex-direction: column;
                gap: 1.5rem;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .fixed-bar-text {
                font-size: 0.8rem;
            }

            .fixed-bar .btn-primary {
                font-size: 0.85rem;
                padding: 0.4rem 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }

            .section {
                --space-section: 56px;
            }

            .nav-logo {
                font-size: 1.5rem;
            }

            .hero-ctas {
                flex-direction: column;
            }

            .hero-ctas .btn-primary,
            .hero-ctas .btn-white-outline {
                text-align: center;
                width: 100%;
            }

            .demo-image-wrap img {
                height: 260px;
            }

            .features-grid {
                gap: 1.2rem;
            }

            .proof-cards {
                gap: 1rem;
            }
        }

/* roulang page: category1 */
:root {
  --color-primary: #B23A48;
  --color-primary-dark: #8E2A36;
  --color-primary-soft: #F3DEE1;
  --color-accent: #A67C52;
  --color-bg: #FAF5EE;
  --color-bg-deep: #241D19;
  --color-surface: #FFFFFF;
  --color-surface-deep: #F1E8DC;
  --color-text: #2E2622;
  --color-text-muted: #6D5F55;
  --color-border: #E4D6C6;
  --radius-card: 18px;
  --radius-pill: 999px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 20px rgba(46, 38, 34, 0.06);
  --shadow-hover: 0 12px 28px rgba(46, 38, 34, 0.12);
  --container-max: 1200px;
  --space-section: 96px;
}
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 16px;
  padding-bottom: 64px;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.25s ease; }
a:hover { color: var(--color-primary-dark); }
button { font-family: inherit; cursor: pointer; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: var(--space-section) 0; }
.text-muted { color: var(--color-text-muted); }
.section-title {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 12px;
}
.section-subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 40px;
}

/* ===== 杂志刊头导航 ===== */
.site-nav {
  background-color: var(--color-bg);
  border-bottom: 2px solid var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-masthead {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
}
.nav-logo {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.2;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.nav-logo .dot { color: var(--color-primary); }
.nav-tagline {
  border-left: 1px solid var(--color-border);
  padding-left: 1rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.nav-channel {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0.5rem 0;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.nav-channel::-webkit-scrollbar { display: none; }
.nav-channel a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  padding: 0.4rem 1.2rem;
  border-right: 1px solid var(--color-border);
  white-space: nowrap;
  transition: color 0.2s;
}
.nav-channel a:first-child { padding-left: 0; }
.nav-channel a:last-child { border-right: none; }
.nav-channel a:hover { color: var(--color-accent); }
.nav-channel a.active { color: var(--color-accent); font-weight: 700; }
.nav-cta { margin-left: auto; }
.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  margin-left: auto;
  color: var(--color-text);
  font-size: 1.25rem;
  line-height: 1;
}
.mobile-menu {
  display: none;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 1rem 1.5rem;
  flex-direction: column;
  gap: 0.8rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { color: var(--color-text); font-size: 1.05rem; padding: 0.3rem 0; font-weight: 500; }
.mobile-menu a:hover { color: var(--color-primary); }
.mobile-menu a.active { color: var(--color-primary); font-weight: 700; }

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-block;
  background-color: var(--color-primary);
  color: #fff;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  transition: background-color 0.25s, transform 0.15s, box-shadow 0.25s;
}
.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(178, 58, 72, 0.3);
}
.btn-primary:active { transform: translateY(0) scale(0.98); }
.btn-primary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}
.btn-outline {
  display: inline-block;
  border: 2px solid var(--color-primary);
  background: transparent;
  color: var(--color-primary);
  padding: 0.65rem 1.6rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  transition: background-color 0.25s, color 0.25s;
}
.btn-outline:hover {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

/* ===== 分类页页头 ===== */
.cat-head {
  padding: 56px 0 32px;
  background-color: var(--color-surface-deep);
  border-bottom: 1px solid var(--color-border);
}
.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1.2rem;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { margin: 0 8px; color: var(--color-border); }
.breadcrumb .current { color: var(--color-text); font-weight: 600; }
.cat-head h1 {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 14px;
}
.cat-head p {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 760px;
  line-height: 1.8;
}

/* ===== 标签工具栏 ===== */
.cat-toolbar {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
  position: sticky;
  top: 96px;
  z-index: 40;
}
.tag-scroll {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding: 8px 0;
  scrollbar-width: none;
}
.tag-scroll::-webkit-scrollbar { display: none; }
.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s;
  white-space: nowrap;
}
.tag-pill:hover {
  background-color: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
}
.tag-pill.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.tag-pill span {
  font-size: 0.75rem;
  background: rgba(0,0,0,0.06);
  padding: 2px 8px;
  border-radius: 999px;
  color: var(--color-text-muted);
}
.tag-pill.active span {
  background: rgba(255,255,255,0.25);
  color: #fff;
}

/* ===== 信息卡片网格 ===== */
.cat-cards {
  padding: var(--space-section) 0;
  background-color: var(--color-bg);
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.video-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  display: block;
  color: var(--color-text);
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-primary);
  color: var(--color-text);
}
.video-card-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.video-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.video-card:hover .video-card-thumb img { transform: scale(1.05); }
.video-card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  letter-spacing: 0.03em;
}
.video-card-body { padding: 20px 24px 12px; }
.video-card-body h3 {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}
.video-card-body p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}
.video-card-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 24px;
  border-top: 1px solid var(--color-border);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}
.video-card-meta .tag {
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
  padding: 2px 10px;
  border-radius: 999px;
  font-weight: 600;
}

/* ===== 热门TOP10 ===== */
.cat-top {
  padding: var(--space-section) 0;
  background-color: var(--color-surface-deep);
}
.top-list {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  padding: 8px 32px;
  box-shadow: var(--shadow-card);
}
.top-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
  transition: all 0.25s;
}
.top-item:last-child { border-bottom: none; }
.top-item:hover .top-num { color: var(--color-primary); }
.top-item:hover .top-content h3 { color: var(--color-primary); }
.top-num {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-accent);
  width: 64px;
  flex-shrink: 0;
  line-height: 1;
  transition: color 0.25s;
}
.top-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  transition: color 0.25s;
}
.top-content p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 4px;
  line-height: 1.5;
}

/* ===== 推荐区块 ===== */
.cat-recommend {
  padding: var(--space-section) 0;
  background-color: var(--color-bg);
}
.recommend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.recommend-card {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  min-height: 260px;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center;
  isolation: isolate;
  transition: transform 0.3s, box-shadow 0.3s;
}
.recommend-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.recommend-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.05) 0%, rgba(36,29,25,0.85) 85%);
  z-index: -1;
}
.recommend-card-body {
  position: relative;
  z-index: 1;
  padding: 28px 24px;
  color: #fff;
}
.recommend-card-body h3 {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.recommend-card-body p {
  font-size: 0.85rem;
  opacity: 0.88;
  line-height: 1.65;
  margin-bottom: 14px;
}
.recommend-link {
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 2px;
  transition: border-color 0.2s, color 0.2s;
}
.recommend-link:hover { color: var(--color-primary-soft); border-color: var(--color-primary-soft); }

/* ===== FAQ ===== */
.faq-section {
  padding: var(--space-section) 0;
  background-color: var(--color-bg);
}
.faq-list { max-width: 820px; }
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.faq-item.active {
  border-color: var(--color-primary);
  box-shadow: 0 6px 16px rgba(178, 58, 72, 0.08);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  font-size: 1rem;
  font-weight: 600;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  color: var(--color-text);
  gap: 16px;
}
.faq-question:hover { color: var(--color-primary-dark); }
.faq-question:focus-visible {
  outline: 3px solid var(--color-primary-soft);
  outline-offset: -3px;
  border-radius: var(--radius-card);
}
.faq-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 1.2rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: transform 0.3s, background-color 0.25s, color 0.25s;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--color-primary);
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  padding: 0 24px;
}
.faq-answer-inner {
  padding-bottom: 22px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}
.faq-more {
  margin-top: 28px;
  text-align: center;
}
.faq-more a {
  font-weight: 600;
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-primary-soft);
  padding-bottom: 2px;
}
.faq-more a:hover { color: var(--color-primary-dark); border-color: var(--color-primary); }

/* ===== CTA ===== */
.cta-band {
  background-color: var(--color-bg-deep);
  background-image: url('/assets/images/backpic/back-8.jpg');
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  text-align: center;
  position: relative;
  isolation: isolate;
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(36, 29, 25, 0.88);
  z-index: -1;
}
.cta-band .container { position: relative; z-index: 1; }
.cta-band h2 {
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.3;
}
.cta-band p {
  color: rgba(255,255,255,0.75);
  font-size: 1.05rem;
  margin-bottom: 28px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 页脚 ===== */
.site-footer {
  background-color: var(--color-bg-deep);
  padding: 64px 0 24px;
  color: rgba(255,255,255,0.7);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand a { color: #fff; }
.footer-brand a:hover { color: var(--color-primary-soft); }
.footer-brand p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  margin-top: 12px;
}
.footer-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--color-primary-soft); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
}

/* ===== 底部固定转化条 ===== */
.fixed-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: rgba(36, 29, 25, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.fixed-bar span {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 500;
}
.fixed-bar .btn-primary {
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .recommend-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-tagline { display: none; }
  .nav-cta { display: none; }
  .mobile-toggle { display: block; }
  .nav-channel { display: none; }
  .cat-head { padding: 36px 0 24px; }
  .cat-head h1 { font-size: 1.9rem; }
  .section-title { font-size: 1.6rem; }
  .cat-toolbar { top: 0; }
}
@media (max-width: 640px) {
  .card-grid { grid-template-columns: 1fr; }
  .recommend-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .top-item { gap: 14px; }
  .top-num { font-size: 1.8rem; width: 44px; }
  .top-list { padding: 8px 20px 8px 24px; }
  .cat-head p { font-size: 0.95rem; }
  .cta-band h2 { font-size: 1.7rem; }
  .fixed-bar span { font-size: 0.8rem; }
  .section { --space-section: 56px; }
}