/* roulang page: index */
:root {
    --primary: #1d3b34;
    --primary-dark: #122720;
    --accent: #b98a5e;
    --accent-dark: #9e7046;
    --page-bg: #f7f5f1;
    --dark-bg: #14201c;
    --card-bg: #ffffff;
    --text-main: #222625;
    --text-secondary: #5c6561;
    --text-muted: #8a938e;
    --border-color: rgba(29, 59, 52, 0.12);
    --radius-card: 8px;
    --radius-img: 12px;
    --shadow-card: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-hover: 0 8px 24px rgba(0,0,0,0.08);
    --transition-base: all 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    background: var(--page-bg);
    color: var(--text-main);
    line-height: 1.6;
    font-size: 16px;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 768px) {
    .container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

.font-serif {
    font-family: "Noto Serif SC", "Songti SC", "SimSun", serif;
}

.tabular-nums {
    font-variant-numeric: tabular-nums;
    font-family: "Noto Serif SC", "Songti SC", serif;
}

/* ========== Header / Nav ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #ffffff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.brand-row {
    height: 64px;
    transition: height 0.3s ease;
}

.brand-row.compact {
    height: 48px;
}

.brand-row.compact .brand-logo-text {
    font-size: 1.1rem;
}

.brand-logo-wrap {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    flex-shrink: 0;
}

.brand-logo-mark {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-family: "Noto Serif SC", serif;
    font-weight: 700;
    font-size: 1.15rem;
}

.brand-logo-text {
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    white-space: nowrap;
    transition: font-size 0.3s ease;
}

.channel-nav {
    background: #f0eeea;
    border-top: 1px solid rgba(29, 59, 52, 0.06);
}

.channel-inner {
    display: flex;
    align-items: center;
    gap: 2rem;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
}

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

.channel-link {
    display: inline-block;
    padding: 0.75rem 0;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    transition: color 0.2s ease;
    flex-shrink: 0;
}

.channel-link:hover {
    color: var(--primary);
}

.channel-link.active {
    color: var(--primary);
}

.channel-link.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 2px;
    background: var(--primary);
}

.search-input {
    width: 13rem;
    height: 36px;
    border-radius: 9999px;
    background: var(--page-bg);
    border: 1px solid #d6d3cf;
    padding: 0 2.75rem 0 1rem;
    font-size: 0.875rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(29, 59, 52, 0.2);
}

@media (min-width: 768px) {
    .search-input {
        width: 16rem;
    }
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.5rem;
    border-radius: 6px;
    background: var(--accent);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(1px);
}

.btn-primary:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(185, 138, 94, 0.3);
}

.btn-outline-dark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.5rem;
    border-radius: 6px;
    border: 1px solid var(--primary);
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

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

.btn-outline-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.5rem;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-outline-light:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

/* ========== Hero ========== */
.hero-section {
    position: relative;
    min-height: 520px;
    display: flex;
    align-items: center;
    background-image: linear-gradient(rgba(20, 32, 28, 0.82), rgba(20, 32, 28, 0.92)), url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 1rem;
    border-radius: 9999px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(4px);
    margin-bottom: 1.5rem;
}

.hero-badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 9999px;
    background: var(--accent);
    flex-shrink: 0;
}

.hero-title {
    color: #ffffff;
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.15;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.72);
    font-size: 1.125rem;
    line-height: 1.8;
    max-width: 34rem;
    margin-top: 1rem;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-animate {
    animation: fadeUp 0.3s ease both;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.5rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 3.75rem;
    }
}

/* ========== Section helpers ========== */
.section-padding {
    padding: 4rem 0;
}

@media (min-width: 768px) {
    .section-padding {
        padding: 6rem 0;
    }
}

.section-title-wrap {
    margin-bottom: 3rem;
}

.section-title-bar {
    width: 32px;
    height: 2px;
    background: var(--primary);
    margin-bottom: 1rem;
    flex-shrink: 0;
}

.section-title {
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-main);
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    max-width: 68ch;
    margin-top: 0.5rem;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.25rem;
    }
}

/* ========== Cards ========== */
.card-base {
    background: var(--card-bg);
    border-radius: var(--radius-card);
    border: 1px solid #e5e2dc;
    box-shadow: var(--shadow-card);
    transition: all 0.2s ease;
}

.card-base:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
    border-color: rgba(29, 59, 52, 0.3);
}

.card-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(29, 59, 52, 0.08);
    color: var(--primary);
    flex-shrink: 0;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    background: #f0eeea;
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
}

.badge-solid {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    background: var(--primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
}

/* ========== Link underline ========== */
.link-underline {
    position: relative;
    display: inline-block;
    color: var(--primary);
    font-weight: 500;
    font-size: 0.875rem;
}

.link-underline::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.link-underline:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ========== List items ========== */
.list-item {
    padding: 1.25rem 0;
    border-bottom: 1px solid rgba(29, 59, 52, 0.08);
    transition: background 0.2s ease;
}

.list-item:hover {
    background: rgba(0, 0, 0, 0.015);
}

/* ========== FAQ ========== */
.faq-item {
    border-bottom: 1px solid #e5e2dc;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 0;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-main);
    text-align: left;
    transition: color 0.2s ease;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--accent);
    transition: transform 0.25s ease;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
}

.faq-answer-inner {
    padding-bottom: 1.25rem;
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 62ch;
}

/* ========== Footer ========== */
.site-footer {
    background: var(--dark-bg);
    padding: 4rem 0 2rem;
    color: #9aa6a1;
}

.footer-heading {
    color: #ffffff;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
    letter-spacing: 0.02em;
}

.footer-link {
    display: block;
    color: #9aa6a1;
    font-size: 0.875rem;
    padding: 0.35rem 0;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: #ffffff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    font-size: 0.8125rem;
    color: #7c8a85;
}

/* ========== Image placeholder ========== */
.img-placeholder {
    background: #e5e2dc;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ========== Responsive ========== */
@media (max-width: 767px) {
    .mobile-hidden {
        display: none;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-padding {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .brand-logo-text {
        font-size: 1.05rem;
    }
    
    .brand-logo-mark {
        width: 30px;
        height: 30px;
        font-size: 1rem;
    }
}

@media (max-width: 520px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
}

/* roulang page: category1 */
:root {
        --primary: #1d3b34;
        --primary-dark: #122720;
        --accent: #b98a5e;
        --accent-dark: #9e7046;
        --bg-warm: #f7f5f1;
        --bg-deep: #14201c;
        --card-bg: #ffffff;
        --text-main: #222625;
        --text-secondary: #5c6561;
        --text-muted: #8a938e;
        --border-color: rgba(29, 59, 52, 0.12);
        --border-light: #e5e2dc;
        --shadow-sm: 0 1px 2px rgba(16, 25, 22, 0.06);
        --shadow-md: 0 8px 24px rgba(16, 25, 22, 0.10);
        --radius-lg: 12px;
        --radius-md: 8px;
        --radius-sm: 6px;
        --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
        --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    }

    *,
    *::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: 1.6;
        color: var(--text-main);
        background: var(--bg-warm);
        -webkit-font-smoothing: antialiased;
    }

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

    a {
        color: var(--primary);
        text-decoration: none;
        transition: color 0.2s ease;
    }

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

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

    .container {
        width: 100%;
        max-width: 1200px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 1rem;
        padding-right: 1rem;
    }

    @media (min-width: 768px) {
        .container {
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
    }

    .font-serif {
        font-family: var(--font-serif);
    }

    /* 按钮 */
    .btn-primary,
    .btn-outline {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        padding: 0.75rem 1.5rem;
        border-radius: 6px;
        font-size: 0.95rem;
        font-weight: 500;
        line-height: 1.2;
        transition: all 0.2s ease;
        cursor: pointer;
        border: 1px solid transparent;
        white-space: nowrap;
    }

    .btn-primary {
        background: var(--accent);
        color: #fff;
    }

    .btn-primary:hover {
        background: var(--accent-dark);
        color: #fff;
        transform: translateY(1px);
    }

    .btn-primary:focus-visible,
    .btn-outline:focus-visible {
        outline: none;
        box-shadow: 0 0 0 3px rgba(29, 59, 52, 0.3);
    }

    .btn-outline {
        border-color: rgba(255, 255, 255, 0.4);
        color: #fff;
        background: transparent;
    }

    .btn-outline:hover {
        border-color: #fff;
        background: rgba(255, 255, 255, 0.1);
        color: #fff;
    }

    .btn-dark-outline {
        border-color: var(--primary);
        color: var(--primary);
        background: transparent;
    }

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

    /* 搜索框 */
    .search-input {
        width: 12rem;
        height: 2.25rem;
        padding: 0 2.5rem 0 1rem;
        border-radius: 999px;
        background: var(--bg-warm);
        border: 1px solid #d6d3cf;
        font-size: 0.875rem;
        outline: none;
        transition: all 0.2s ease;
    }

    @media (min-width: 768px) {
        .search-input {
            width: 16rem;
        }
    }

    .search-input:focus {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(29, 59, 52, 0.15);
    }

    /* 头部 */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 50;
        background: #fff;
        box-shadow: 0 1px 0 var(--border-color);
    }

    .brand-row {
        height: 64px;
        transition: height 0.2s ease;
        background: #fff;
    }

    .brand-row.scrolled {
        height: 48px;
        box-shadow: 0 4px 16px rgba(16, 25, 22, 0.06);
    }

    .brand-logo-wrap {
        display: flex;
        align-items: center;
        gap: 0.65rem;
        flex-shrink: 0;
    }

    .brand-logo-mark {
        width: 34px;
        height: 34px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 8px;
        background: var(--primary);
        color: #fff;
        font-family: var(--font-serif);
        font-size: 1.15rem;
        font-weight: 700;
        letter-spacing: 0.02em;
    }

    .brand-logo-text {
        font-family: var(--font-serif);
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--primary);
        letter-spacing: 0.01em;
    }

    .channel-nav {
        background: #f0eeea;
        border-top: 1px solid rgba(29, 59, 52, 0.06);
    }

    .channel-inner {
        display: flex;
        align-items: center;
        gap: 2rem;
        height: 48px;
        overflow-x: auto;
        white-space: nowrap;
        scrollbar-width: none;
    }

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

    .channel-link {
        position: relative;
        display: inline-flex;
        align-items: center;
        height: 48px;
        padding: 0 0.125rem;
        font-size: 0.9rem;
        font-weight: 500;
        color: var(--text-secondary);
        transition: color 0.2s ease;
        flex-shrink: 0;
    }

    .channel-link:hover {
        color: var(--primary);
    }

    .channel-link.active {
        color: var(--primary);
    }

    .channel-link.active::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 2px;
        background: var(--primary);
    }

    /* 分区标题 */
    .section-title {
        font-family: var(--font-serif);
        font-size: 1.875rem;
        font-weight: 700;
        line-height: 1.2;
        color: var(--primary-dark);
        letter-spacing: -0.01em;
    }

    @media (min-width: 768px) {
        .section-title {
            font-size: 2.25rem;
        }
    }

    .section-title-deco {
        display: inline-block;
        width: 32px;
        height: 2px;
        background: var(--primary);
        margin-bottom: 0.5rem;
    }

    .section-desc {
        font-size: 1rem;
        line-height: 1.8;
        color: var(--text-secondary);
        max-width: 48em;
    }

    /* 卡片 */
    .card-base {
        background: var(--card-bg);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-light);
        box-shadow: var(--shadow-sm);
        transition: all 0.2s ease;
    }

    .card-base:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-2px);
        border-color: rgba(29, 59, 52, 0.3);
    }

    /* 标签 */
    .badge-tag {
        display: inline-flex;
        align-items: center;
        padding: 0.35rem 0.9rem;
        border-radius: 999px;
        background: #f0eeea;
        color: var(--primary);
        font-size: 0.8rem;
        font-weight: 500;
        line-height: 1;
    }

    .badge-dark {
        background: var(--primary);
        color: #fff;
    }

    .badge-outline {
        background: transparent;
        border: 1px solid rgba(29, 59, 52, 0.25);
    }

    /* 列表条目 */
    .list-item-row {
        display: flex;
        flex-direction: column;
        gap: 0.25rem;
        padding: 1.25rem 0;
        border-bottom: 1px solid var(--border-light);
        transition: background 0.2s ease;
    }

    .list-item-row:hover {
        background: rgba(0, 0, 0, 0.02);
    }

    .list-item-title {
        font-size: 1.125rem;
        font-weight: 600;
        color: var(--text-main);
        transition: color 0.2s ease;
        line-height: 1.4;
    }

    .list-item-title:hover {
        color: var(--primary);
    }

    .list-item-desc {
        font-size: 0.875rem;
        line-height: 1.6;
        color: var(--text-secondary);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .list-item-meta {
        font-size: 0.875rem;
        color: var(--text-muted);
    }

    /* 侧栏 */
    .side-panel {
        background: #fff;
        border-radius: var(--radius-md);
        border: 1px solid var(--border-light);
        padding: 1.5rem;
        box-shadow: var(--shadow-sm);
    }

    .side-panel-heading {
        font-size: 0.875rem;
        font-weight: 700;
        color: var(--primary-dark);
        letter-spacing: 0.06em;
        margin-bottom: 1rem;
        padding-bottom: 0.75rem;
        border-bottom: 1px solid var(--border-light);
    }

    .side-link {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        padding: 0.55rem 0;
        font-size: 0.9rem;
        font-weight: 500;
        color: var(--text-main);
        transition: color 0.2s ease, padding-left 0.2s ease;
        border-bottom: 1px dashed rgba(29, 59, 52, 0.08);
    }

    .side-link:hover {
        color: var(--primary);
        padding-left: 0.35rem;
    }

    /* FAQ */
    .faq-item {
        border-bottom: 1px solid var(--border-light);
    }

    .faq-item:first-child {
        border-top: 1px solid var(--border-light);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        width: 100%;
        padding: 1.25rem 0;
        background: transparent;
        border: none;
        cursor: pointer;
        font-size: 1rem;
        font-weight: 600;
        color: var(--text-main);
        text-align: left;
        transition: color 0.2s ease;
    }

    .faq-question:hover {
        color: var(--primary);
    }

    .faq-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: #f0eeea;
        color: var(--primary);
        font-size: 1.1rem;
        font-weight: 400;
        transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
    }

    .faq-item.open .faq-icon {
        transform: rotate(45deg);
        background: var(--primary);
        color: #fff;
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.25s ease, padding 0.25s ease;
        padding-left: 0;
        color: var(--text-secondary);
        font-size: 0.9rem;
        line-height: 1.75;
    }

    .faq-item.open .faq-answer {
        max-height: 400px;
        padding-bottom: 1.25rem;
    }

    /* Hero */
    .hero-section {
        position: relative;
        min-height: 420px;
        display: flex;
        align-items: center;
        background-color: var(--bg-deep);
        background-image: url('/assets/images/backpic/back-1.webp');
        background-size: cover;
        background-position: center;
        overflow: hidden;
    }

    .hero-section::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, rgba(20, 32, 28, 0.88) 0%, rgba(20, 32, 28, 0.75) 60%, rgba(20, 32, 28, 0.55) 100%);
    }

    .hero-section .container {
        position: relative;
        z-index: 1;
    }

    .hero-title {
        font-family: var(--font-serif);
        font-size: 2.6rem;
        font-weight: 700;
        line-height: 1.15;
        color: #fff;
        letter-spacing: -0.01em;
        animation: fadeUp 0.35s ease-out both;
    }

    @media (min-width: 768px) {
        .hero-title {
            font-size: 3.4rem;
        }
    }

    @media (min-width: 1024px) {
        .hero-title {
            font-size: 4rem;
        }
    }

    .hero-subtitle {
        margin-top: 1.25rem;
        max-width: 540px;
        font-size: 1.05rem;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.8);
        animation: fadeUp 0.35s ease-out 0.08s both;
    }

    @keyframes fadeUp {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* 统计数字 */
    .stat-number {
        font-family: var(--font-serif);
        font-size: 2rem;
        font-weight: 700;
        line-height: 1.1;
        color: var(--primary);
        font-variant-numeric: tabular-nums;
    }

    @media (min-width: 768px) {
        .stat-number {
            font-size: 2.4rem;
        }
    }

    .stat-label {
        font-size: 0.875rem;
        color: var(--text-muted);
        margin-top: 0.25rem;
    }

    /* CTA */
    .cta-section {
        background-color: var(--bg-deep);
        background-image: url('/assets/images/backpic/back-3.webp');
        background-size: cover;
        background-position: center;
        position: relative;
    }

    .cta-section::before {
        content: "";
        position: absolute;
        inset: 0;
        background: rgba(20, 32, 28, 0.9);
    }

    .cta-section .container {
        position: relative;
        z-index: 1;
    }

    /* Footer */
    .site-footer {
        background: var(--bg-deep);
        color: #9aa6a1;
        padding: 3rem 0 1.5rem;
        margin-top: 0;
    }

    .footer-heading {
        color: #fff;
        font-size: 0.9rem;
        font-weight: 600;
        margin-bottom: 1rem;
        letter-spacing: 0.05em;
    }

    .footer-link {
        display: block;
        padding: 0.3rem 0;
        font-size: 0.9rem;
        color: #9aa6a1;
        transition: color 0.2s ease;
    }

    .footer-link:hover {
        color: #fff;
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        margin-top: 2.5rem;
        padding-top: 1.5rem;
        font-size: 0.85rem;
        color: #7c8a85;
    }

    /* 链接下划线 */
    .link-underline {
        position: relative;
        display: inline-block;
        color: var(--primary);
        font-weight: 500;
    }

    .link-underline::after {
        content: "";
        position: absolute;
        bottom: -2px;
        left: 0;
        right: 0;
        height: 1px;
        background: currentColor;
        transform: scaleX(0);
        transform-origin: left center;
        transition: transform 0.3s ease;
    }

    .link-underline:hover {
        color: var(--accent);
    }

    .link-underline:hover::after {
        transform: scaleX(1);
    }

    /* 场景标签 */
    .scene-tag {
        display: inline-flex;
        align-items: center;
        padding: 0.5rem 1.25rem;
        border-radius: 999px;
        border: 1px solid rgba(29, 59, 52, 0.2);
        font-size: 0.875rem;
        color: var(--primary);
        background: #fff;
        transition: all 0.2s ease;
    }

    .scene-tag:hover {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
    }

    /* 图片占位 */
    .img-placeholder {
        display: flex;
        align-items: center;
        justify-content: center;
        background: #e5e2dc;
        color: #8a938e;
        font-size: 0.875rem;
        min-height: 160px;
        border-radius: var(--radius-md);
    }

/* roulang page: article */
:root {
    --primary: #1d3b34;
    --primary-dark: #122720;
    --accent: #b98a5e;
    --accent-dark: #9e7046;
    --bg-warm: #f7f5f1;
    --bg-dark: #14201c;
    --card-bg: #ffffff;
    --text-main: #222625;
    --text-secondary: #5c6561;
    --text-muted: #8a938e;
    --border-light: rgba(29,59,52,0.12);
    --border-soft: #e5e2dc;
    --radius-sm: 6px;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 3px rgba(20,32,28,0.06);
    --shadow-md: 0 8px 24px rgba(20,32,28,0.08);
    --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
    --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    background: var(--bg-warm);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
input, button, textarea { font-family: inherit; }

/* ===== Header / Nav ===== */
.site-header {
    background: #fff;
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 1px 8px rgba(20,32,28,0.04);
}
.brand-row {
    height: 64px;
    transition: height 0.25s ease;
    overflow: hidden;
}
.brand-row--scrolled { height: 48px; }
.brand-logo-wrap {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
.brand-logo-mark {
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.25rem;
    flex-shrink: 0;
    transition: width 0.25s ease, height 0.25s ease, font-size 0.25s ease;
}
.brand-row--scrolled .brand-logo-mark {
    width: 34px;
    height: 34px;
    font-size: 1rem;
}
.brand-logo-text {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
    white-space: nowrap;
    transition: font-size 0.25s ease;
}
.brand-row--scrolled .brand-logo-text { font-size: 1.08rem; }
.search-input {
    width: 260px;
    height: 36px;
    border-radius: 999px;
    background: var(--bg-warm);
    border: 1px solid #d6d3cf;
    padding: 0 40px 0 16px;
    font-size: 0.875rem;
    color: var(--text-main);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(29,59,52,0.18);
    background: #fff;
}
.search-input::placeholder { color: var(--text-muted); }
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.625rem 1.5rem;
    border-radius: var(--radius-sm);
    transition: background 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
    cursor: pointer;
    border: none;
    line-height: 1;
}
.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(185,138,94,0.28);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus-visible {
    outline: 2px solid rgba(29,59,52,0.3);
    outline-offset: 2px;
}
.channel-nav {
    background: #f0eeea;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}
.channel-inner {
    display: flex;
    align-items: center;
    gap: 2rem;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    height: 48px;
}
.channel-inner::-webkit-scrollbar { display: none; }
.channel-link {
    display: inline-flex;
    align-items: center;
    height: 48px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0;
}
.channel-link:hover { color: var(--primary); }
.channel-link.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    font-weight: 600;
}

/* ===== Breadcrumb ===== */
.page-breadcrumb {
    background: var(--bg-warm);
    border-bottom: 1px solid var(--border-light);
    padding: 1rem 0;
}
.breadcrumb {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    flex-wrap: wrap;
    gap: 0;
}
.breadcrumb a {
    color: var(--text-muted);
    transition: color 0.2s ease;
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .separator {
    margin: 0 0.5rem;
    color: var(--border-soft);
    pointer-events: none;
}
.breadcrumb .current {
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 320px;
}

/* ===== Article Header ===== */
.article-header {
    background: var(--bg-warm);
    padding: 3.5rem 0 2.5rem;
    text-align: center;
}
.badge {
    display: inline-flex;
    align-items: center;
    background: #f0eeea;
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.375rem 1.1rem;
    border-radius: 999px;
    letter-spacing: 0.05em;
    margin-bottom: 1.25rem;
}
.article-title {
    font-family: var(--font-serif);
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.22;
    color: var(--text-main);
    letter-spacing: 0.01em;
}
.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 1.25rem;
    flex-wrap: wrap;
}
.meta-dot { color: var(--border-soft); }

/* ===== Article Body ===== */
.article-content {
    background: #fff;
    padding: 3rem 0 1.5rem;
    border-bottom: 1px solid var(--border-light);
}
.article-body {
    max-width: 100%;
    font-size: 1rem;
    line-height: 1.9;
    color: #3a423e;
    word-break: break-word;
}
.article-body > p:first-of-type {
    font-size: 1.125rem;
    line-height: 1.9;
    color: #2d3430;
}
.article-body p { margin-bottom: 1.5rem; }
.article-body h2 {
    font-family: var(--font-serif);
    font-size: 1.625rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1.3;
    color: var(--text-main);
}
.article-body h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--text-main);
}
.article-body img {
    width: 100%;
    border-radius: var(--radius-lg);
    margin: 1.75rem 0;
}
.article-body blockquote {
    border-left: 2px solid var(--accent);
    padding-left: 1.5rem;
    color: var(--text-secondary);
    margin: 1.75rem 0;
    font-style: italic;
}
.article-body ul,
.article-body ol {
    margin: 1rem 0 1.5rem 1.25rem;
    padding: 0;
}
.article-body li { margin-bottom: 0.5rem; }
.article-body a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.article-body a:hover { color: var(--accent-dark); }

/* ===== Tags ===== */
.article-tags {
    background: #fff;
    padding: 0.5rem 0 3rem;
}
.tag {
    display: inline-flex;
    align-items: center;
    background: #f0eeea;
    color: var(--primary);
    font-size: 0.75rem;
    padding: 0.375rem 1rem;
    border-radius: 999px;
    white-space: nowrap;
    transition: background 0.2s ease, color 0.2s ease;
}
.tag:hover {
    background: var(--primary);
    color: #fff;
}

/* ===== Related ===== */
.related-section {
    background: var(--bg-warm);
    padding: 3.5rem 0;
    border-bottom: 1px solid var(--border-light);
}
.section-heading-center {
    text-align: center;
    margin-bottom: 2.5rem;
}
.heading-bar {
    display: block;
    width: 32px;
    height: 2px;
    background: var(--primary);
    margin: 0 auto 1rem;
}
.section-heading-center h2 {
    font-family: var(--font-serif);
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.2;
}
.section-heading-center p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}
.related-card {
    background: var(--card-bg);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
    display: block;
    height: 100%;
}
.related-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
    border-color: rgba(29,59,52,0.3);
}
.related-card .img-wrap {
    position: relative;
    background: var(--border-soft);
    overflow: hidden;
}
.related-card .img-wrap img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.related-card:hover .img-wrap img { transform: scale(1.03); }
.related-card .img-wrap.no-img::after {
    content: '暂无图片';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    background: var(--border-soft);
}
.related-card .related-body { padding: 1.25rem; }
.related-card h3 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.5rem;
    line-height: 1.4;
    transition: color 0.2s ease;
}
.related-card h3:hover { color: var(--primary); }
.related-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-date {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.75rem;
    font-family: var(--font-serif);
}

/* ===== Back Entry ===== */
.back-entry {
    background: var(--bg-warm);
    padding: 2.5rem 0 3.5rem;
}
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: color 0.2s ease, gap 0.2s ease;
}
.back-link:hover {
    color: var(--primary);
    gap: 0.75rem;
}

/* ===== Not Found ===== */
.not-found {
    background: var(--bg-warm);
    padding: 4rem 1rem;
    text-align: center;
}
.not-found-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-main);
}
.not-found-text {
    color: var(--text-secondary);
    margin-top: 0.75rem;
    font-size: 0.9375rem;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-dark);
    color: #9aa6a1;
    padding: 3.5rem 0 2rem;
}
.site-footer .footer-heading {
    font-family: var(--font-serif);
    font-size: 0.9375rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 1rem;
}
.site-footer .footer-link {
    display: block;
    font-size: 0.875rem;
    color: #9aa6a1;
    padding: 0.375rem 0;
    transition: color 0.2s ease;
}
.site-footer .footer-link:hover { color: var(--accent); }
.site-footer .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    font-size: 0.8125rem;
    color: #7c8a85;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .search-input { width: 200px; }
}
@media (max-width: 768px) {
    .brand-row { height: 56px; }
    .brand-row--scrolled { height: 48px; }
    .brand-logo-text { font-size: 1.05rem; }
    .brand-row--scrolled .brand-logo-text { font-size: 1rem; }
    .channel-inner { gap: 1.5rem; }
    .article-title { font-size: 1.75rem; }
    .article-header { padding: 2.5rem 1rem 2rem; }
    .article-content { padding: 2.25rem 1rem 1rem; }
    .article-tags { padding: 0.5rem 1rem 2.5rem; }
    .related-section { padding: 2.5rem 1rem; }
    .back-entry { padding: 2rem 1rem 3rem; }
    .breadcrumb .current { max-width: 180px; }
    .site-footer { padding: 3rem 1rem 1.5rem; }
}
@media (max-width: 520px) {
    .brand-logo-text { font-size: 1rem; }
    .brand-logo-mark { width: 36px; height: 36px; font-size: 1.05rem; }
    .brand-row--scrolled .brand-logo-mark { width: 32px; height: 32px; font-size: 0.95rem; }
    .channel-inner { gap: 1.2rem; }
    .article-title { font-size: 1.5rem; }
    .article-body { font-size: 0.9375rem; line-height: 1.85; }
    .article-body > p:first-of-type { font-size: 1.0625rem; }
    .section-heading-center h2 { font-size: 1.5rem; }
    .site-footer .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* roulang page: category2 */
/* ============ Design Tokens ============ */
        :root {
            --primary: #1d3b34;
            --primary-dark: #122720;
            --accent: #b98a5e;
            --accent-dark: #9e7046;
            --bg-page: #f7f5f1;
            --bg-dark: #14201c;
            --card-bg: #ffffff;
            --text-main: #222625;
            --text-body: #3a403d;
            --text-muted: #5c6561;
            --text-weak: #8a938e;
            --border-color: rgba(29, 59, 52, 0.12);
            --line-soft: #e5e2dc;
            --shadow-sm: 0 1px 2px rgba(20, 32, 28, 0.06);
            --shadow-md: 0 10px 30px rgba(20, 32, 28, 0.09);
            --radius-lg: 12px;
            --radius-md: 8px;
            --radius-sm: 6px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background-color: var(--bg-page);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: "Noto Serif SC", "Songti SC", "SimSun", serif;
            margin: 0 0 0.5em;
            line-height: 1.2;
            font-weight: 700;
            color: var(--text-main);
        }

        p {
            margin: 0 0 1rem;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        /* ============ Header / Navigation ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: #fff;
            box-shadow: 0 1px 0 rgba(29, 59, 52, 0.08);
        }

        .brand-row {
            height: 64px;
            background: #fff;
            overflow: hidden;
            transition: height 0.25s ease;
        }

        .site-header.scrolled .brand-row {
            height: 48px;
        }

        .brand-logo-wrap {
            display: flex;
            align-items: center;
            gap: 0.55rem;
        }

        .brand-logo-mark {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            font-family: "Noto Serif SC", serif;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            flex-shrink: 0;
            transition: width 0.25s ease, height 0.25s ease;
        }

        .site-header.scrolled .brand-logo-mark {
            width: 28px;
            height: 28px;
            font-size: 0.9rem;
        }

        .brand-logo-text {
            font-family: "Noto Serif SC", serif;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--primary);
            white-space: nowrap;
            transition: font-size 0.25s ease;
        }

        .search-input {
            width: 12rem;
            height: 2.25rem;
            border-radius: 9999px;
            background: var(--bg-page);
            border: 1px solid #d6d3cf;
            padding: 0 2.2rem 0 1rem;
            font-size: 0.875rem;
            color: var(--text-main);
            outline: none;
            transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
        }

        .search-input:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(29, 59, 52, 0.2);
        }

        .search-input::placeholder {
            color: var(--text-weak);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 600;
            padding: 0.65rem 1.4rem;
            border-radius: var(--radius-sm);
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(1px);
        }

        .btn-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(185, 138, 94, 0.35);
        }

        .site-header.scrolled .btn-primary {
            padding: 0.5rem 1.1rem;
            font-size: 0.8rem;
        }

        .channel-nav {
            background: #f0eeea;
            border-top: 1px solid rgba(29, 59, 52, 0.06);
        }

        .channel-inner {
            display: flex;
            align-items: center;
            gap: 2rem;
            height: 48px;
            overflow-x: auto;
            white-space: nowrap;
            scrollbar-width: none;
        }

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

        .channel-link {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 0.6rem 0.1rem;
            position: relative;
            display: inline-block;
            border-bottom: 2px solid transparent;
            transition: color 0.2s;
            flex-shrink: 0;
        }

        .channel-link:hover {
            color: var(--primary);
        }

        .channel-link.active {
            color: var(--primary);
            font-weight: 600;
            border-bottom-color: var(--primary);
        }

        /* ============ Buttons ============ */
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--primary);
            color: var(--primary);
            background: transparent;
            font-size: 0.875rem;
            font-weight: 500;
            padding: 0.625rem 1.4rem;
            border-radius: var(--radius-sm);
            transition: all 0.2s;
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, 0.45);
            color: #fff;
            background: transparent;
            font-size: 0.875rem;
            font-weight: 500;
            padding: 0.625rem 1.4rem;
            border-radius: var(--radius-sm);
            transition: all 0.2s;
        }

        .btn-ghost:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        /* ============ Page Head ============ */
        .page-head {
            background-color: #f0eeea;
            background-image: linear-gradient(rgba(240, 238, 234, 0.9), rgba(240, 238, 234, 0.94)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 80px 0 72px;
            border-bottom: 1px solid var(--border-color);
        }

        .head-badge {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 500;
            padding: 0.3rem 0.9rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
            margin-bottom: 1.25rem;
        }

        .page-head h1 {
            font-size: 2.6rem;
            line-height: 1.15;
            margin-bottom: 0.75rem;
        }

        .head-desc {
            max-width: 68ch;
            color: var(--text-body);
            font-size: 1.05rem;
            line-height: 1.8;
            margin-bottom: 1.75rem;
        }

        @media (min-width: 768px) {
            .page-head h1 {
                font-size: 3.2rem;
            }

            .page-head {
                padding: 96px 0 84px;
            }
        }

        /* ============ Sections ============ */
        .site-section {
            padding: 72px 0;
        }

        @media (min-width: 768px) {
            .site-section {
                padding: 90px 0;
            }
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-dark);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 0.6rem;
        }

        .section-title {
            font-size: 1.8rem;
            line-height: 1.25;
            margin-bottom: 0.75rem;
            position: relative;
        }

        .section-title::before {
            content: '';
            display: block;
            width: 32px;
            height: 2px;
            background: var(--primary);
            margin-bottom: 0.8rem;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 68ch;
            margin-bottom: 0;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2.25rem;
            }
        }

        /* ============ Cards ============ */
        .card-base {
            background: var(--card-bg);
            border: 1px solid var(--line-soft);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
        }

        .card-base:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(29, 59, 52, 0.3);
        }

        .card-icon {
            font-family: "Noto Serif SC", serif;
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 1rem;
        }

        .card-title {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 0.4rem;
        }

        .card-text {
            color: var(--text-muted);
            font-size: 0.875rem;
            line-height: 1.7;
        }

        .text-link {
            display: inline-block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            border-bottom: 1px solid transparent;
            transition: border-color 0.2s;
        }

        .text-link:hover {
            border-bottom-color: var(--primary);
        }

        /* ============ Scene Section ============ */
        .scene-points {
            list-style: none;
            padding: 0;
            margin: 1.25rem 0 0;
        }

        .scene-points li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            padding: 0.35rem 0;
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.6;
        }

        .scene-points li::before {
            content: '';
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            margin-top: 0.55rem;
            flex-shrink: 0;
        }

        .scene-tag {
            display: inline-block;
            border: 1px solid rgba(29, 59, 52, 0.2);
            border-radius: 999px;
            padding: 0.4rem 1.1rem;
            font-size: 0.85rem;
            color: var(--primary);
            margin-right: 0.6rem;
            margin-bottom: 0.6rem;
        }

        /* ============ Process ============ */
        .process-section {
            background: #f0eeea;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            margin-top: 2.5rem;
        }

        @media (min-width: 640px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .step-item {
            background: #fff;
            border: 1px solid var(--line-soft);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            position: relative;
            box-shadow: var(--shadow-sm);
        }

        .step-num {
            font-family: "Noto Serif SC", serif;
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent);
            display: block;
            margin-bottom: 0.5rem;
        }

        .step-item h3 {
            font-size: 1rem;
            margin-bottom: 0.4rem;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ============ Stats Panel ============ */
        .stats-panel {
            background-color: var(--bg-dark);
            background-image: linear-gradient(rgba(20, 32, 28, 0.88), rgba(20, 32, 28, 0.92)), url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-lg);
            padding: 2.5rem 1.5rem;
        }

        .stat-item {
            text-align: center;
            padding: 1rem 0.5rem;
        }

        .stat-value {
            font-family: "Noto Serif SC", serif;
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            tabular-nums: normal;
        }

        .stat-label {
            color: rgba(255, 255, 255, 0.72);
            font-size: 0.85rem;
            margin-top: 0.4rem;
            letter-spacing: 0.03em;
        }

        /* ============ Content List ============ */
        .content-row {
            display: block;
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--border-color);
            transition: background 0.2s, padding 0.2s;
        }

        .content-row:hover {
            background: rgba(0, 0, 0, 0.02);
            padding-left: 0.25rem;
            padding-right: 0.25rem;
        }

        .content-row h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 0.35rem 0 0.3rem;
            color: var(--text-main);
            transition: color 0.2s;
        }

        .content-row:hover h3 {
            color: var(--primary);
        }

        .content-row p {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.65;
        }

        .badge {
            display: inline-block;
            background: #f0eeea;
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 500;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
        }

        .side-panel {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .side-panel .card-base {
            padding: 1.5rem;
        }

        .side-panel h3 {
            font-size: 1rem;
            margin-bottom: 0.9rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--border-color);
        }

        .side-link {
            display: block;
            font-size: 0.875rem;
            color: var(--text-body);
            padding: 0.45rem 0;
            border-bottom: 1px dashed rgba(29, 59, 52, 0.08);
            transition: color 0.2s, padding-left 0.2s;
        }

        .side-link:hover {
            color: var(--primary);
            padding-left: 0.35rem;
        }

        .side-panel p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ============ FAQ ============ */
        .faq-wrap {
            max-width: 880px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--line-soft);
        }

        .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.25rem 0.25rem;
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            color: var(--text-main);
            transition: color 0.2s;
        }

        .faq-q:hover {
            color: var(--primary);
        }

        .faq-icon {
            position: relative;
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            margin-left: 1rem;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--primary);
            border-radius: 2px;
            transition: transform 0.25s ease, opacity 0.25s;
        }

        .faq-icon::before {
            width: 12px;
            height: 2px;
            top: 9px;
            left: 4px;
        }

        .faq-icon::after {
            width: 2px;
            height: 12px;
            top: 4px;
            left: 9px;
        }

        .faq-item.open .faq-icon::after {
            transform: scaleY(0);
            opacity: 0;
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease;
        }

        .faq-a p {
            padding: 0 0.25rem 1.25rem;
            margin: 0;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .faq-item.open .faq-a {
            max-height: 400px;
        }

        /* ============ CTA ============ */
        .site-cta {
            background-color: var(--bg-dark);
            background-image: linear-gradient(rgba(20, 32, 28, 0.85), rgba(20, 32, 28, 0.9)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            text-align: center;
        }

        .cta-title {
            color: #fff;
            font-size: 1.8rem;
            margin-bottom: 0.6rem;
        }

        .cta-desc {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            max-width: 56ch;
            margin: 0 auto 1.8rem;
        }

        @media (min-width: 768px) {
            .site-cta {
                padding: 96px 0;
            }

            .cta-title {
                font-size: 2.4rem;
            }
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--bg-dark);
            color: #9aa6a1;
            padding: 56px 0 28px;
        }

        .footer-heading {
            color: #fff;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 1rem;
            letter-spacing: 0.05em;
        }

        .footer-link {
            display: block;
            color: #9aa6a1;
            font-size: 0.85rem;
            padding: 0.35rem 0;
            transition: color 0.2s, padding-left 0.2s;
        }

        .footer-link:hover {
            color: #fff;
            padding-left: 0.25rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            font-size: 0.85rem;
            color: #7c8a85;
        }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .side-panel {
                margin-top: 1rem;
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .brand-logo-text {
                font-size: 1rem;
            }

            .search-input-wrap {
                display: none;
            }

            .site-header .btn-primary {
                padding: 0.5rem 1rem;
                font-size: 0.8rem;
            }

            .page-head {
                padding: 56px 0 48px;
            }

            .page-head h1 {
                font-size: 2.1rem;
            }

            .head-desc {
                font-size: 0.95rem;
            }

            .site-section {
                padding: 56px 0;
            }

            .stats-panel {
                padding: 2rem 1rem;
            }

            .stat-value {
                font-size: 1.9rem;
            }

            .content-row:hover {
                padding-left: 0;
                padding-right: 0;
            }
        }

        @media (max-width: 520px) {
            .brand-row .container {
                gap: 0.5rem;
            }

            .brand-logo-mark {
                width: 30px;
                height: 30px;
                font-size: 0.95rem;
            }

            .channel-inner {
                gap: 1.25rem;
            }

            .page-head h1 {
                font-size: 1.75rem;
            }

            .btn-primary,
            .btn-outline,
            .btn-ghost {
                padding: 0.6rem 1.1rem;
                font-size: 0.8rem;
            }

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

            .stat-item {
                padding: 0.75rem 0.25rem;
            }
        }

/* roulang page: category3 */
:root {
    --primary: #1d3b34;
    --primary-dark: #122720;
    --accent: #b98a5e;
    --accent-dark: #9e7046;
    --bg-page: #f7f5f1;
    --bg-dark: #14201c;
    --card-bg: #ffffff;
    --text-main: #222625;
    --text-secondary: #5c6561;
    --text-muted: #8a938e;
    --border: #e5e2dc;
    --border-dark: rgba(29, 59, 52, 0.12);
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-sm: 6px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
    --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    background: var(--bg-page);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
.container { width: 100%; margin: 0 auto; padding-left: 1rem; padding-right: 1rem; }
@media (min-width: 768px) { .container { padding-left: 1.5rem; padding-right: 1.5rem; } }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: #ffffff; box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06); }
.brand-row { height: 64px; display: flex; align-items: center; transition: height 0.2s; border-bottom: 1px solid #f0eeea; }
.brand-row.scrolled { height: 48px; }
.brand-logo-wrap { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }
.brand-logo-mark { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; background: var(--primary); color: var(--accent); font-family: var(--font-serif); font-weight: 700; font-size: 1.25rem; border-radius: 8px; transition: all 0.2s; }
.brand-logo-text { font-family: var(--font-serif); font-weight: 700; font-size: 1.1rem; color: var(--primary); white-space: nowrap; letter-spacing: 0.01em; }
.search-input { width: 160px; height: 36px; border-radius: 9999px; background: var(--bg-page); border: 1px solid #d6d3cf; padding: 0 2.25rem 0 1rem; font-size: 0.875rem; outline: none; transition: border 0.2s, box-shadow 0.2s; }
.search-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(29, 59, 52, 0.15); }
.btn-primary { display: inline-flex; align-items: center; justify-content: center; padding: 0.625rem 1.5rem; background: var(--accent); color: #fff; font-size: 0.875rem; font-weight: 500; border-radius: 6px; transition: background 0.2s, transform 0.1s; border: none; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-primary:active { transform: translateY(1px); }
.btn-outline-light { display: inline-flex; align-items: center; justify-content: center; padding: 0.625rem 1.5rem; border: 1px solid rgba(255, 255, 255, 0.4); color: #fff; font-size: 0.875rem; font-weight: 500; border-radius: 6px; transition: border 0.2s, background 0.2s; background: transparent; }
.btn-outline-light:hover { border-color: #ffffff; background: rgba(255, 255, 255, 0.1); }
.btn-outline-light:active { transform: translateY(1px); }
.channel-nav { background: #f0eeea; border-bottom: 1px solid #e5e2dc; }
.channel-inner { display: flex; align-items: center; gap: 2rem; height: 48px; overflow-x: auto; white-space: nowrap; }
.channel-inner::-webkit-scrollbar { display: none; }
.channel-link { position: relative; font-size: 0.875rem; font-weight: 500; color: var(--text-secondary); padding: 0 0.25rem; white-space: nowrap; transition: color 0.2s; height: 48px; display: inline-flex; align-items: center; }
.channel-link:hover { color: var(--primary); }
.channel-link.active { color: var(--primary); font-weight: 600; }
.channel-link.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--primary); }

/* Page Hero */
.page-hero { position: relative; background-color: var(--bg-dark); background-image: linear-gradient(rgba(20, 32, 28, 0.82), rgba(20, 32, 28, 0.9)), url('/assets/images/backpic/back-3.webp'); background-size: cover; background-position: center; padding: 5rem 0; color: #fff; }
.page-hero-content { animation: fadeUp 0.3s ease-out; }
.page-hero-title { font-family: var(--font-serif); font-size: 2.5rem; font-weight: 700; line-height: 1.15; }
.page-hero-desc { max-width: 68ch; color: rgba(255, 255, 255, 0.75); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* Section */
.section-title { font-family: var(--font-serif); font-size: 1.875rem; font-weight: 700; line-height: 1.2; color: var(--text-main); display: flex; align-items: center; gap: 0.75rem; }
.section-title::before { content: ''; width: 32px; height: 2px; background: var(--primary); flex-shrink: 0; }

/* Card */
.card { background: var(--card-bg); border: 1px solid #e5e2dc; border-radius: 8px; box-shadow: var(--shadow-sm); transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s; }
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: rgba(29, 59, 52, 0.3); }

/* Stat */
.stat-number { font-family: var(--font-serif); font-weight: 700; font-size: 2.5rem; color: var(--primary); line-height: 1.1; font-variant-numeric: tabular-nums; }

/* Process */
.process-item { position: relative; padding-left: 2rem; border-left: 1px solid var(--border-dark); padding-bottom: 1.25rem; }
.process-number { font-family: var(--font-serif); font-weight: 700; font-size: 1.5rem; color: var(--accent); line-height: 1; }

/* FAQ */
.faq-item { border-bottom: 1px solid #e5e2dc; }
.faq-question { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 1.25rem 0; font-weight: 500; text-align: left; background: none; transition: color 0.2s; font-size: 1rem; color: var(--text-main); }
.faq-question:hover { color: var(--primary); }
.faq-icon { transition: transform 0.25s; color: var(--accent); flex-shrink: 0; margin-left: 1rem; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.25s ease; }
.faq-answer-inner { padding: 0 0 1.25rem; color: var(--text-secondary); font-size: 0.875rem; line-height: 1.8; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-item.open .faq-answer { max-height: 600px; }

/* CTA Banner */
.cta-banner { background-color: var(--bg-dark); background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; padding: 5rem 0; text-align: center; color: #fff; }
.cta-banner-title { font-family: var(--font-serif); font-size: 2rem; font-weight: 700; line-height: 1.25; }
.cta-banner-sub { color: rgba(255, 255, 255, 0.7); }

/* Footer */
.site-footer { background: var(--bg-dark); color: #9aa6a1; padding: 4rem 0 0; }
.footer-heading { font-size: 0.875rem; font-weight: 600; color: #fff; margin-bottom: 1rem; }
.footer-link { display: block; font-size: 0.875rem; color: #9aa6a1; padding: 0.3rem 0; transition: color 0.2s; }
.footer-link:hover { color: #ffffff; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); margin-top: 2.5rem; padding: 1.5rem 0; font-size: 0.875rem; color: #7c8a85; }

/* Mobile */
@media (max-width: 767px) {
    .page-hero { padding: 3.5rem 0; }
    .page-hero-title { font-size: 2rem; }
    .cta-banner { padding: 3.5rem 0; }
    .cta-banner-title { font-size: 1.5rem; }
    .section-title { font-size: 1.5rem; }
}