/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
    --primary: #1E3A34;
    --primary-dark: #14211D;
    --primary-soft: #2A4A42;
    --accent: #B68B4E;
    --accent-dark: #A4783E;
    --accent-light: #FBF6EC;
    --bg-warm: #F7F4EF;
    --bg-white: #FFFFFF;
    --text-main: #2B2B2B;
    --text-secondary: #6E6A64;
    --border: #E6E1D8;
    --radius-card: 16px;
    --radius-btn: 8px;
    --radius-pill: 40px;
    --shadow: 0 6px 24px rgba(30, 58, 52, 0.08);
    --shadow-hover: 0 12px 32px rgba(30, 58, 52, 0.14);
    --transition: all 0.3s ease;
    --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-main);
    background: var(--bg-warm);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; outline: none; }
button { cursor: pointer; border: none; background: none; }

/* 焦点可见性 */
a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ===== 容器 ===== */
.row {
    max-width: 1200px;
    margin: 0 auto;
}

.columns { padding-left: 15px; padding-right: 15px; }

/* ===== 通用板块 ===== */
.section {
    padding: 100px 0;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.3;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    line-height: 1.7;
}

.text-center { text-align: center; }

/* ===== 按钮系统 ===== */
.btn-gold, .btn-outline, .btn-cta, .btn-login, .btn-gold-lg, .btn-outline-lg {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 48px;
    padding: 0 32px;
    border-radius: var(--radius-btn);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
    transition: var(--transition);
    white-space: nowrap;
    user-select: none;
}

.btn-gold {
    background: var(--accent);
    color: var(--primary-dark);
    border: 1px solid var(--accent);
}
.btn-gold:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}
.btn-gold:active { transform: translateY(0); }

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid rgba(30, 58, 52, 0.4);
}
.btn-outline:hover {
    background: rgba(30, 58, 52, 0.05);
    border-color: var(--primary);
    transform: translateY(-1px);
}

.btn-cta {
    background: var(--accent);
    color: var(--primary-dark);
    font-size: 18px;
    height: 54px;
    padding: 0 48px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}
.btn-cta:hover {
    background: #fff;
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
}

.btn-login {
    width: 100%;
    background: var(--accent);
    color: var(--primary-dark);
    height: 48px;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-btn);
    transition: var(--transition);
}
.btn-login:hover {
    background: var(--accent-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(182, 139, 78, 0.3);
}

.btn-gold-lg {
    width: 100%;
    background: var(--accent);
    color: var(--primary-dark);
    height: 50px;
    border-radius: var(--radius-btn);
    font-weight: 700;
    border: none;
    transition: var(--transition);
}
.btn-gold-lg:hover {
    background: var(--accent-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(182, 139, 78, 0.35);
}

.btn-outline-lg {
    width: 100%;
    background: transparent;
    color: var(--text-secondary);
    height: 50px;
    border: 1px solid var(--border);
    border-radius: var(--radius-btn);
    font-weight: 600;
    transition: var(--transition);
}
.btn-outline-lg:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(30, 58, 52, 0.03);
}

/* ===== 双层导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-white);
    box-shadow: 0 1px 8px rgba(30, 58, 52, 0.06);
}

.header-top {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    height: 64px;
    display: flex;
    align-items: center;
}

.header-top-inner {
    display: flex;
    align-items: center;
    width: 100%;
}

.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 1.5px;
    white-space: nowrap;
    line-height: 1;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: var(--accent);
    border-radius: 10px;
    font-size: 16px;
    flex-shrink: 0;
}

.brand-logo:hover { color: var(--primary-dark); }

.search-wrapper {
    display: flex;
    align-items: center;
    background: var(--bg-warm);
    border-radius: var(--radius-pill);
    padding: 4px 4px 4px 18px;
    border: 1px solid transparent;
    transition: var(--transition);
    max-width: 460px;
    margin: 0 auto;
}
.search-wrapper:focus-within {
    background: var(--bg-white);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(182, 139, 78, 0.12);
}
.search-wrapper input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 14px;
    color: var(--text-main);
    height: 38px;
    min-width: 0;
}
.search-wrapper input::placeholder { color: var(--text-secondary); }
.search-wrapper button {
    width: 88px;
    height: 38px;
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    flex-shrink: 0;
}
.search-wrapper button:hover {
    background: var(--primary-soft);
    transform: scale(1.02);
}

.mobile-search-icon {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: var(--bg-warm);
    border-radius: 50%;
    color: var(--primary);
    font-size: 16px;
    margin-left: auto;
}
.mobile-search-icon:hover {
    background: var(--accent);
    color: #fff;
}

.header-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
}

.btn-outline-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 38px;
    padding: 0 22px;
    border-radius: var(--radius-btn);
    border: 1px solid rgba(30, 58, 52, 0.35);
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-outline-sm:hover {
    background: rgba(30, 58, 52, 0.05);
    border-color: var(--primary);
    transform: translateY(-1px);
}

.btn-gold-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 38px;
    padding: 0 22px;
    border-radius: var(--radius-btn);
    background: var(--accent);
    color: var(--primary-dark);
    font-size: 14px;
    font-weight: 700;
    transition: var(--transition);
    white-space: nowrap;
    border: 1px solid var(--accent);
}
.btn-gold-sm:hover {
    background: var(--accent-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(182, 139, 78, 0.25);
}

/* 第二行频道 Tabs */
.header-navbar {
    background: var(--bg-warm);
    border-bottom: 1px solid rgba(30, 58, 52, 0.06);
    height: 56px;
    display: flex;
    align-items: center;
}

.nav-tabs-scroll {
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    white-space: nowrap;
    padding: 8px 4px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.nav-tabs-scroll::-webkit-scrollbar { display: none; }

.nav-tab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 24px;
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    background: transparent;
    transition: var(--transition);
    border: 1px solid transparent;
    flex-shrink: 0;
}
.nav-tab i { font-size: 13px; }
.nav-tab:hover {
    color: var(--primary);
    background: rgba(30, 58, 52, 0.05);
}
.nav-tab.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(30, 58, 52, 0.2);
}
.nav-tab.active:hover {
    background: var(--primary-dark);
    color: #fff;
}

/* ===== Hero 首屏 ===== */
.hero-section {
    position: relative;
    min-height: 620px;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 80px 0;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(20, 33, 29, 0.92) 0%, rgba(30, 58, 52, 0.82) 55%, rgba(30, 58, 52, 0.55) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    display: flex;
    align-items: center;
    min-height: 440px;
}

.hero-section h1 {
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 800;
    color: #fff;
    line-height: 1.25;
    letter-spacing: 2px;
    margin-bottom: 18px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
}

.hero-subtitle {
    font-size: clamp(16px, 2vw, 20px);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
    letter-spacing: 1px;
}

.hero-feature-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-top: 8px;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.92);
    font-size: 14px;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    backdrop-filter: blur(4px);
}
.hero-feature i {
    color: var(--accent);
    font-size: 15px;
}

/* 登录卡片 */
.login-card {
    background: var(--bg-white);
    border-radius: var(--radius-card);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
    padding: 32px 32px 24px;
    max-width: 420px;
    margin-left: auto;
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}
.login-card-head h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
}

.login-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    background: var(--accent-light);
    color: var(--accent-dark);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(182, 139, 78, 0.2);
}

.login-card-sub {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.login-form .form-group {
    position: relative;
    margin-bottom: 16px;
}
.login-form .form-group i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 14px;
    pointer-events: none;
}
.login-form .form-group input {
    width: 100%;
    height: 46px;
    border: 1px solid var(--border);
    border-radius: var(--radius-btn);
    padding: 0 14px 0 40px;
    font-size: 14px;
    color: var(--text-main);
    background: var(--bg-warm);
    transition: var(--transition);
}
.login-form .form-group input:focus {
    border-color: var(--accent);
    background: var(--bg-white);
    box-shadow: 0 0 0 3px rgba(182, 139, 78, 0.12);
}
.login-form .form-group input::placeholder { color: var(--text-secondary); }

.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 8px 0 20px;
    font-size: 13px;
    color: var(--text-secondary);
}
.form-options label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}
.form-options input[type="checkbox"] {
    accent-color: var(--primary);
    width: 15px;
    height: 15px;
}
.form-options a {
    color: var(--accent-dark);
    font-weight: 500;
}
.form-options a:hover { text-decoration: underline; }

.login-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-secondary);
}
.login-trust i { color: var(--accent); }

/* ===== 权益对比表 ===== */
.plans-section {
    background: var(--bg-warm);
}

.plans-wrapper {
    display: flex;
    align-items: stretch;
    margin-top: 20px;
}

.plans-wrapper .columns {
    display: flex;
}

.plan-card {
    background: var(--bg-white);
    border-radius: var(--radius-card);
    padding: 40px 36px;
    width: 100%;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}
.plan-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.plan-free {
    background: #FCFCFA;
}

.plan-vip {
    background: var(--accent-light);
    border: 2px solid var(--accent);
    box-shadow: 0 8px 28px rgba(182, 139, 78, 0.18);
}

.plan-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%) rotate(-3deg);
    background: var(--accent);
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 24px;
    border-radius: var(--radius-pill);
    letter-spacing: 2px;
    box-shadow: 0 4px 12px rgba(182, 139, 78, 0.3);
    white-space: nowrap;
}

.plan-head h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 2px;
}
.plan-head p {
    font-size: 14px;
    color: var(--text-secondary);
}

.plan-price {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin: 24px 0;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}
.plan-price span {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}
.plan-price em {
    font-style: normal;
    font-size: 14px;
    color: var(--text-secondary);
}

.plan-features {
    flex: 1;
    margin-bottom: 28px;
}
.plan-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 15px;
    color: var(--text-main);
}
.plan-features li i {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    flex-shrink: 0;
}
.plan-features li i.fa-check {
    background: rgba(30, 58, 52, 0.08);
    color: var(--primary);
}
.plan-features li i.fa-times {
    background: rgba(110, 106, 100, 0.1);
    color: var(--text-secondary);
}
.plan-features li.disabled {
    color: #B0ABA4;
}

/* ===== 等级亮点 ===== */
.stats-section {
    background: var(--bg-white);
    padding: 80px 0;
}

.stats-row {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0;
    padding: 20px 0;
}

.stat-item {
    flex: 1 1 180px;
    max-width: 260px;
    text-align: center;
    padding: 24px 16px;
    transition: var(--transition);
}
.stat-item:hover .stat-number {
    transform: scale(1.03);
}

.stat-number {
    font-size: clamp(40px, 4vw, 64px);
    font-weight: 300;
    color: var(--accent);
    line-height: 1.2;
    letter-spacing: -1px;
    transition: transform 0.3s ease;
}

.stat-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin-top: 8px;
    letter-spacing: 2px;
}

.stat-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 80px;
    background: var(--border);
    flex-shrink: 0;
}

.stat-wide {
    flex: 1 1 240px;
    max-width: 300px;
}

.stat-medium {
    flex: 1 1 200px;
    max-width: 240px;
}

/* ===== 专属内容预览 ===== */
.content-preview-section {
    background: var(--bg-warm);
}

.content-preview-grid {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}
.content-preview-grid .columns {
    padding: 15px;
    display: flex;
}

.preview-card {
    background: var(--bg-white);
    border-radius: var(--radius-card);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    width: 100%;
    display: flex;
    flex-direction: column;
}
.preview-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
    border-color: rgba(182, 139, 78, 0.35);
}

.preview-img {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--bg-warm);
}
.preview-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.preview-card:hover .preview-img img {
    transform: scale(1.04);
}

.vip-tag {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(20, 33, 29, 0.82);
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: var(--radius-pill);
    backdrop-filter: blur(4px);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    letter-spacing: 0.5px;
}

.free-tag {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: var(--radius-pill);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    letter-spacing: 0.5px;
}

.preview-body {
    padding: 20px 24px 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.preview-body h3 {
    font-size: 19px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.preview-body p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.preview-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--border);
    padding-top: 14px;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 3px 12px;
    background: linear-gradient(135deg, rgba(30, 58, 52, 0.06) 0%, rgba(30, 58, 52, 0.12) 100%);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(30, 58, 52, 0.08);
}

.date {
    font-size: 12px;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.date i { font-size: 11px; }

/* ===== FAQ 手风琴 ===== */
.faq-section {
    background: var(--bg-white);
}

.faq-grid {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}
.faq-grid .columns {
    padding: 15px;
}

.faq-item {
    background: var(--bg-warm);
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover {
    border-color: rgba(182, 139, 78, 0.3);
}
.faq-item.active {
    border-color: rgba(182, 139, 78, 0.4);
    box-shadow: 0 4px 16px rgba(30, 58, 52, 0.06);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    gap: 16px;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    transition: var(--transition);
}
.faq-question:hover {
    color: var(--accent-dark);
}

.faq-icon {
    font-size: 18px;
    color: var(--accent);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border: 1px solid rgba(182, 139, 78, 0.3);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-style: normal;
    font-size: 16px;
    line-height: 1;
}
.faq-item.active .faq-icon {
    transform: rotate(45deg);
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

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

.faq-answer-inner {
    padding: 0 24px 20px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    border-top: 1px dashed var(--border);
    padding-top: 14px;
    margin: 0 24px 20px;
    padding-left: 0;
    padding-right: 0;
}

.faq-item.active .faq-answer {
    max-height: 400px;
}

/* ===== CTA 通栏 ===== */
.cta-section {
    position: relative;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    padding: 100px 0;
    text-align: center;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
    opacity: 0.15;
    z-index: 0;
}
.cta-section .row {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 2px;
    line-height: 1.3;
}

.cta-section p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== 最新信息 (CMS) ===== */
.news-section {
    background: var(--bg-warm);
}

.news-list {
    max-width: 860px;
    margin: 0 auto;
}

.news-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px 28px;
    margin-bottom: 16px;
    transition: var(--transition);
}
.news-item:hover {
    box-shadow: var(--shadow-hover);
    transform: translateX(4px);
    border-color: rgba(182, 139, 78, 0.3);
}

.news-item-content {
    flex: 1;
    min-width: 0;
}

.news-category {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    background: var(--accent-light);
    color: var(--accent-dark);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-pill);
    margin-bottom: 8px;
}

.news-title {
    display: block;
    font-size: 18px;
    font-weight: 600;
    color: var(--primary);
    line-height: 1.5;
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: var(--transition);
}
.news-title:hover {
    color: var(--accent-dark);
}

.news-excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-item-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    flex-shrink: 0;
}

.news-date {
    font-size: 13px;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.news-date i { font-size: 12px; }

.news-read {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-dark);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}
.news-read:hover {
    color: var(--primary);
    gap: 10px;
}

/* ===== 空态 ===== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-warm);
    border-radius: var(--radius-card);
}

.empty-icon {
    width: 72px;
    height: 72px;
    border-radius: 16px;
    background: var(--bg-white);
    border: 1px dashed var(--border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--accent);
    margin-bottom: 16px;
    position: relative;
}
.empty-icon::after {
    content: '';
    position: absolute;
    top: -6px;
    right: -6px;
    width: 18px;
    height: 18px;
    background: var(--bg-warm);
    border: 2px solid var(--border);
    border-radius: 3px;
    transform: rotate(12deg);
}

.empty-state p {
    font-size: 15px;
    color: var(--text-secondary);
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.75);
    padding: 70px 0 0;
    font-size: 14px;
}

.footer-top {
    display: flex;
    flex-wrap: wrap;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1.5px;
    margin-bottom: 14px;
    line-height: 1;
}
.footer-logo .brand-mark {
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent);
}

.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    max-width: 300px;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: 1px;
}

.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul li a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.footer-col ul li a:hover {
    color: var(--accent);
    padding-left: 4px;
}
.footer-col ul li i {
    color: var(--accent);
    width: 16px;
    text-align: center;
}

.footer-bottom {
    padding: 22px 0;
    background: rgba(0, 0, 0, 0.2);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
    line-height: 1.7;
}

.footer-bottom .icp {
    margin-top: 2px;
    font-size: 12px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .section { padding: 80px 0; }
    .section-title { font-size: 34px; }
    .hero-section { min-height: 540px; }
    .login-card { max-width: 380px; }
    .stat-item { flex-basis: 150px; }
    .stat-divider { height: 60px; }
}

@media (max-width: 640px) {
    .section { padding: 60px 0; }
    .section-title { font-size: 28px; }
    .section-desc { font-size: 15px; margin-bottom: 32px; }

    .header-top { height: 60px; }
    .header-top-inner { row-gap: 0; }

    .search-wrapper { display: none; }
    .mobile-search-icon { display: inline-flex; }

    .header-actions { gap: 8px; }
    .btn-outline-sm, .btn-gold-sm { padding: 0 16px; height: 36px; font-size: 13px; }

    .header-navbar { height: auto; padding: 6px 0; }
    .nav-tabs-scroll { padding: 4px 2px; }
    .nav-tab { padding: 7px 18px; font-size: 13px; }

    .hero-section { min-height: auto; padding: 48px 0; }
    .hero-section h1 { font-size: 36px; letter-spacing: 1px; }
    .hero-subtitle { font-size: 16px; }
    .hero-feature-grid { gap: 10px; }
    .hero-feature { font-size: 12px; padding: 6px 12px; }

    .login-card {
        max-width: 100%;
        margin: 40px 0 0;
        padding: 24px 20px 20px;
    }
    .login-card-head h3 { font-size: 20px; }

    .plans-wrapper .columns { padding-bottom: 0; }
    .plan-card { padding: 32px 24px; margin-bottom: 24px; }

    .stats-row { gap: 10px; }
    .stat-item { flex-basis: 45%; max-width: none; padding: 16px 8px; }
    .stat-divider { display: none; }
    .stat-number { font-size: 36px; }

    .content-preview-grid .columns { padding: 10px 15px; }

    .faq-question { font-size: 15px; padding: 15px 18px; }
    .faq-answer-inner { font-size: 13px; margin: 0 18px 16px; }

    .cta-section { padding: 60px 0; }
    .cta-section h2 { font-size: 30px; }
    .cta-section p { font-size: 15px; }

    .news-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 18px 20px;
    }
    .news-item-meta {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }
    .news-title {
        font-size: 16px;
        white-space: normal;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }

    .site-footer { padding-top: 50px; }
    .footer-col { margin-bottom: 30px; }
    .footer-bottom p { font-size: 12px; }

    .btn-cta { font-size: 16px; height: 50px; padding: 0 36px; }
}

@media (max-width: 520px) {
    .brand-logo { font-size: 20px; letter-spacing: 1px; }
    .brand-mark { width: 30px; height: 30px; font-size: 14px; }

    .btn-outline-sm, .btn-gold-sm {
        font-size: 12px;
        padding: 0 12px;
        height: 34px;
    }

    .hero-content h1 { font-size: 32px; }

    .form-options { font-size: 12px; }
    .login-form .form-group input { font-size: 13px; height: 44px; }

    .plan-price span { font-size: 40px; }
    .plan-features li { font-size: 14px; }

    .stat-item { flex-basis: 100%; max-width: 100%; }
    .stat-number { font-size: 44px; }

    .preview-body { padding: 16px 18px 18px; }
    .preview-body h3 { font-size: 16px; }

    .faq-icon { width: 24px; height: 24px; font-size: 14px; }
}

/* roulang page: category1 */
:root {
            --primary: #1E3A34;
            --primary-dark: #14211D;
            --primary-light: rgba(30, 58, 52, 0.08);
            --accent: #B68B4E;
            --accent-hover: #A4783E;
            --accent-light: #FBF6EC;
            --bg: #F7F4EF;
            --card-bg: #FFFFFF;
            --text: #2B2B2B;
            --text-light: #6E6A64;
            --text-muted: #9A958E;
            --border: #E6E1D8;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 6px 24px rgba(30, 58, 52, 0.08);
            --shadow-hover: 0 12px 32px rgba(30, 58, 52, 0.14);
            --transition: 0.3s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans CN', '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-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        ul {
            list-style: none;
        }

        .row {
            max-width: 1200px;
            margin: 0 auto;
        }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--card-bg);
            box-shadow: 0 2px 12px rgba(30, 58, 52, 0.06);
        }

        .header-top {
            height: 64px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--primary);
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .brand-logo:hover {
            color: var(--primary);
        }

        .brand-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 16px;
            flex-shrink: 0;
        }

        .header-actions {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 14px;
        }

        .search-box {
            position: relative;
            display: flex;
            align-items: center;
            background: var(--bg);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            height: 38px;
            width: 260px;
            transition: box-shadow var(--transition);
        }

        .search-box:focus-within {
            box-shadow: 0 0 0 2px var(--accent);
            background: var(--card-bg);
        }

        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            font-size: 14px;
            color: var(--text);
            padding: 0;
        }

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

        .search-box button {
            color: var(--text-light);
            font-size: 14px;
            cursor: pointer;
            padding: 0 4px;
            transition: color var(--transition);
        }

        .search-box button:hover {
            color: var(--accent);
        }

        .btn-member {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 38px;
            padding: 0 18px;
            border: 1px solid var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            color: var(--primary);
            white-space: nowrap;
            transition: all var(--transition);
        }

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

        .header-nav {
            background: var(--bg);
            padding: 10px 0;
        }

        .nav-tabs-scroll {
            display: flex;
            gap: 6px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .nav-tabs-scroll::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-light);
            white-space: nowrap;
            transition: all var(--transition);
        }

        .nav-tab i {
            font-size: 13px;
        }

        .nav-tab:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .nav-tab.active {
            background: var(--primary);
            color: #fff;
        }

        /* ========== Category Hero ========== */
        .category-hero {
            position: relative;
            padding: 110px 0 90px;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(20, 33, 29, 0.92) 0%, rgba(30, 58, 52, 0.82) 60%, rgba(20, 33, 29, 0.72) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .hero-tag {
            display: inline-block;
            background: rgba(182, 139, 78, 0.25);
            color: #E4C98F;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
            letter-spacing: 2px;
        }

        .category-hero h1 {
            font-size: 48px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            letter-spacing: 2px;
            margin-bottom: 16px;
        }

        .hero-sub {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.8;
        }

        /* ========== Intro Section ========== */
        .intro-section {
            padding: 90px 0;
            background: var(--bg);
        }

        .intro-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .intro-image img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        .intro-content {
            padding: 20px 10px;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 1px;
            margin-bottom: 18px;
        }

        .intro-content h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .intro-content p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .intro-list {
            margin-top: 10px;
        }

        .intro-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 15px;
            color: var(--text);
        }

        .intro-list li i {
            color: var(--accent);
            font-size: 16px;
            line-height: 1.6;
        }

        /* ========== Steps Section ========== */
        .steps-section {
            padding: 90px 0;
            background: var(--card-bg);
        }

        .section-head {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
        }

        .section-head .section-tag {
            margin-bottom: 12px;
        }

        .step-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 36px 28px;
            height: 100%;
            position: relative;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .step-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            border-color: var(--border);
        }

        .step-num {
            font-size: 48px;
            font-weight: 300;
            color: var(--accent);
            display: block;
            line-height: 1;
            margin-bottom: 20px;
            letter-spacing: 2px;
        }

        .step-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 12px;
        }

        .step-card p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
        }

        .step-arrow {
            display: none;
        }

        /* ========== Safety Section ========== */
        .safety-section {
            padding: 90px 0;
            background: var(--bg);
            position: relative;
        }

        .safety-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .safety-item {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 30px;
            display: flex;
            gap: 18px;
            align-items: flex-start;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

        .safety-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .safety-icon {
            width: 46px;
            height: 46px;
            background: var(--accent-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
        }

        .safety-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .safety-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ========== FAQ Section ========== */
        .faq-section {
            padding: 90px 0;
            background: var(--card-bg);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .faq-item {
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid transparent;
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-item.active {
            border-color: var(--accent);
            box-shadow: var(--shadow);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            text-align: left;
            transition: color var(--transition);
        }

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

        .faq-question i {
            font-size: 16px;
            color: var(--accent);
            transition: transform 0.35s ease;
            flex-shrink: 0;
        }

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

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

        .faq-content p {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            padding: 0;
            background: var(--bg);
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            border-radius: 20px;
            padding: 70px 40px;
            text-align: center;
            margin-bottom: 90px;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            background: rgba(182, 139, 78, 0.15);
            border-radius: 50%;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -20px;
            width: 120px;
            height: 120px;
            background: rgba(182, 139, 78, 0.08);
            border-radius: 50%;
        }

        .cta-box h2 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 2px;
        }

        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 30px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 32px;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            border: none;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(182, 139, 78, 0.3);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border: 1px solid var(--primary);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            background: transparent;
        }

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

        /* ========== Footer ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding-top: 60px;
            font-size: 14px;
        }

        .footer-top {
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            white-space: nowrap;
        }

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

        .footer-logo .brand-mark {
            background: var(--accent);
            color: var(--primary-dark);
        }

        .footer-desc {
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            font-size: 14px;
            padding-right: 20px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-col ul li i {
            font-size: 12px;
            color: var(--accent);
        }

        .footer-col ul li .fa-envelope,
        .footer-col ul li .fa-clock,
        .footer-col ul li .fa-shield-halved {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            width: 20px;
            text-align: center;
        }

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            background: rgba(0, 0, 0, 0.15);
        }

        .footer-bottom p {
            color: rgba(255, 255, 255, 0.45);
            font-size: 13px;
            display: inline;
            margin: 0 8px;
        }

        .footer-bottom .icp {
            display: block;
            margin-top: 4px;
        }

        /* ========== Responsive ========== */
        @media screen and (max-width: 1024px) {
            .search-box {
                width: 200px;
            }

            .category-hero h1 {
                font-size: 40px;
            }
        }

        @media screen and (max-width: 640px) {
            .header-top {
                height: 58px;
            }

            .brand-logo {
                font-size: 17px;
            }

            .brand-mark {
                width: 32px;
                height: 32px;
                font-size: 14px;
                border-radius: 8px;
            }

            .search-box {
                display: none;
            }

            .btn-member {
                padding: 0 14px;
                font-size: 13px;
            }

            .header-actions {
                gap: 8px;
            }

            .category-hero {
                padding: 70px 0 50px;
            }

            .category-hero h1 {
                font-size: 32px;
                line-height: 1.3;
            }

            .hero-sub {
                font-size: 14px;
                padding: 0 16px;
            }

            .intro-section,
            .steps-section,
            .safety-section,
            .faq-section {
                padding: 55px 0;
            }

            .intro-image img {
                height: 220px;
            }

            .intro-content {
                padding: 24px 0 0;
            }

            .intro-content h2 {
                font-size: 26px;
            }

            .intro-content p {
                font-size: 14px;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .step-card {
                padding: 28px 20px;
                margin-bottom: 16px;
            }

            .safety-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .safety-item {
                padding: 20px;
            }

            .faq-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-content p {
                padding: 0 18px 16px;
                font-size: 14px;
            }

            .cta-box {
                padding: 50px 24px;
                margin-bottom: 55px;
                border-radius: 16px;
            }

            .cta-box h2 {
                font-size: 26px;
            }

            .cta-box p {
                font-size: 14px;
            }

            .btn-primary {
                height: 44px;
                padding: 0 24px;
                font-size: 14px;
            }

            .footer-top {
                padding-bottom: 20px;
            }

            .footer-col {
                margin-bottom: 24px;
            }

            .footer-bottom p {
                display: block;
                margin: 4px 0;
            }
        }

        @media screen and (max-width: 520px) {
            .header-top .columns {
                padding: 0 12px;
            }

            .nav-tab {
                font-size: 13px;
                padding: 7px 12px;
            }

            .category-hero h1 {
                font-size: 28px;
            }

            .hero-sub {
                font-size: 13px;
            }

            .safety-item {
                flex-direction: column;
                gap: 10px;
            }

            .safety-icon {
                width: 40px;
                height: 40px;
                font-size: 16px;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1E3A34;
            --primary-dark: #14211D;
            --accent: #B68B4E;
            --accent-dark: #A4783E;
            --bg-warm: #F7F4EF;
            --card-bg: #FFFFFF;
            --text: #2B2B2B;
            --text-secondary: #6E6A64;
            --border: #E6E1D8;
            --radius-card: 16px;
            --radius-btn: 8px;
            --shadow: 0 6px 24px rgba(30, 58, 52, 0.08);
            --shadow-hover: 0 12px 32px rgba(30, 58, 52, 0.14);
            --transition: all 0.25s ease;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", "Noto Sans CJK SC", sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            display: inline-block;
            vertical-align: middle;
        }

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

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

        ul,
        ol {
            list-style-position: inside;
        }

        input,
        button {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--primary);
        }

        .row {
            max-width: 1200px;
            margin: 0 auto;
        }

        .columns {
            padding-left: 15px;
            padding-right: 15px;
        }

        /* ===== 按钮系统 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            background: transparent;
            color: var(--primary);
        }

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

        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 22px rgba(166, 120, 62, 0.28);
        }

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

        .btn-outline:hover {
            background: rgba(30, 58, 52, 0.06);
            transform: translateY(-1px);
        }

        .btn-small {
            height: 38px;
            padding: 0 18px;
            font-size: 14px;
            border-radius: 6px;
        }

        .btn-large {
            height: 52px;
            padding: 0 42px;
            font-size: 17px;
            border-radius: 10px;
        }

        /* ===== Header 双层导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 1px 0 rgba(230, 225, 216, 0.8);
        }

        .header-top {
            height: 64px;
            background: #fff;
            border-bottom: 1px solid var(--border);
        }

        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 1px;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
        }

        .brand-logo:hover {
            color: var(--primary);
        }

        .brand-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-warm);
            border-radius: 8px;
            padding: 0 12px;
            height: 40px;
            width: 260px;
            border: 1px solid transparent;
            transition: border-color 0.25s ease;
        }

        .search-box:focus-within {
            border-color: var(--accent);
            background: #fff;
        }

        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            flex: 1;
            font-size: 14px;
            color: var(--text);
        }

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

        .search-box button {
            border: none;
            background: transparent;
            color: var(--text-secondary);
            cursor: pointer;
            font-size: 14px;
            padding: 4px;
        }

        .search-box button:hover {
            color: var(--accent);
        }

        .header-tabs {
            background: var(--bg-warm);
            border-bottom: 1px solid var(--border);
        }

        .nav-tabs-scroll {
            display: flex;
            align-items: center;
            gap: 8px;
            overflow-x: auto;
            padding: 8px 0;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }

        .nav-tabs-scroll::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 22px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            background: transparent;
            text-decoration: none;
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-tab i {
            font-size: 13px;
        }

        .nav-tab:hover {
            background: rgba(30, 58, 52, 0.07);
            color: var(--primary);
        }

        .nav-tab.active {
            background: var(--primary);
            color: #fff;
        }

        .nav-tab.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        /* ===== 文章 Banner ===== */
        .article-banner {
            background: linear-gradient(135deg, rgba(30, 58, 52, 0.94), rgba(20, 33, 29, 0.88)), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            padding: 68px 0 62px;
            text-align: center;
            color: #fff;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        .breadcrumb i {
            font-size: 11px;
            opacity: 0.6;
        }

        .article-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 16px;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .article-title {
            font-size: 42px;
            line-height: 1.2;
            font-weight: 800;
            color: #fff;
            max-width: 820px;
            margin: 0 auto 18px;
            letter-spacing: 1px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 28px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            flex-wrap: wrap;
        }

        .article-meta i {
            margin-right: 6px;
            color: var(--accent);
        }

        /* ===== 文章主体 ===== */
        .article-main {
            background: var(--bg-warm);
            padding: 64px 0 88px;
        }

        .article-container {
            max-width: 860px;
            margin: 0 auto;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow);
            padding: 56px 64px;
            border: 1px solid rgba(230, 225, 216, 0.5);
        }

        /* ===== 正文排版 ===== */
        .article-body {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            word-break: break-word;
        }

        .article-body p {
            margin-bottom: 1.5em;
        }

        .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 42px 0 16px;
            color: var(--primary);
            line-height: 1.3;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 32px 0 12px;
            color: var(--primary);
            line-height: 1.4;
        }

        .article-body blockquote {
            margin: 28px 0;
            padding: 20px 24px;
            background: var(--bg-warm);
            border-left: 4px solid var(--accent);
            border-radius: 0 10px 10px 0;
            color: var(--text-secondary);
            font-size: 15px;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 24px 24px;
            line-height: 1.9;
        }

        .article-body li {
            margin-bottom: 8px;
            padding-left: 4px;
        }

        .article-body li::marker {
            color: var(--accent);
        }

        .article-body img {
            max-width: 100%;
            border-radius: 12px;
            margin: 26px 0;
            box-shadow: 0 4px 20px rgba(30, 58, 52, 0.08);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 26px 0;
            font-size: 15px;
        }

        .article-body th,
        .article-body td {
            border: 1px solid var(--border);
            padding: 12px 16px;
            text-align: left;
        }

        .article-body th {
            background: var(--bg-warm);
            font-weight: 600;
            color: var(--primary);
        }

        .article-body hr {
            border: none;
            border-top: 1px solid var(--border);
            margin: 42px 0;
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-color: rgba(182, 139, 78, 0.5);
        }

        .article-body a:hover {
            color: var(--accent);
            text-decoration-color: var(--accent);
        }

        /* ===== 空态 ===== */
        .article-empty {
            text-align: center;
            padding: 60px 20px;
        }

        .article-empty i {
            font-size: 56px;
            color: var(--border);
            margin-bottom: 20px;
            display: block;
        }

        .article-empty h2 {
            font-size: 26px;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .article-empty p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 28px;
        }

        /* ===== 相关阅读 ===== */
        .related-posts {
            margin-top: 72px;
        }

        .related-posts .section-title {
            font-size: 28px;
            font-weight: 800;
            text-align: center;
            color: var(--primary);
            margin-bottom: 40px;
            letter-spacing: 1px;
        }

        .related-posts .section-title::after {
            content: '';
            display: block;
            width: 56px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            margin: 14px auto 0;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-bottom: 36px;
        }

        .related-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-decoration: none;
            color: var(--text);
            display: flex;
            flex-direction: column;
            border: 1px solid rgba(230, 225, 216, 0.4);
        }

        .related-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            color: var(--text);
        }

        .related-thumb {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-warm);
            flex-shrink: 0;
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .related-card:hover .related-thumb img {
            transform: scale(1.04);
        }

        .related-info {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .related-info h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 8px;
            color: var(--primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-info p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .related-date {
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .related-date i {
            color: var(--accent);
        }

        .back-to-list {
            text-align: center;
            margin-top: 8px;
        }

        .back-to-list a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            text-decoration: none;
            border-bottom: 1px solid transparent;
            transition: border-color 0.25s ease;
            padding-bottom: 2px;
        }

        .back-to-list a:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        /* ===== CTA 区块 ===== */
        .article-cta {
            background: linear-gradient(120deg, #1E3A34 0%, #14211D 100%);
            padding: 76px 0;
            text-align: center;
            color: #fff;
        }

        .article-cta h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }

        .article-cta p {
            color: rgba(255, 255, 255, 0.72);
            font-size: 16px;
            margin-bottom: 32px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .article-cta .btn-primary {
            height: 52px;
            padding: 0 44px;
            font-size: 17px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding-top: 64px;
            font-size: 14px;
        }

        .footer-top {
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            text-decoration: none;
            margin-bottom: 16px;
        }

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

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 340px;
            margin-top: 12px;
        }

        .footer-col h4 {
            font-size: 16px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .footer-col ul li i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            padding: 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-bottom p {
            margin: 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            text-align: center;
        }

        .footer-bottom .icp {
            margin-top: 4px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .search-box {
                width: 200px;
            }

            .article-container {
                padding: 44px 40px;
            }

            .related-grid {
                gap: 20px;
            }

            .related-info {
                padding: 16px;
            }
        }

        @media (max-width: 768px) {
            .article-banner {
                padding: 48px 0 42px;
            }

            .article-title {
                font-size: 34px;
            }

            .article-container {
                padding: 32px 24px;
            }

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

            .article-cta h2 {
                font-size: 26px;
            }

            .article-cta p {
                font-size: 15px;
            }

            .footer-top .columns {
                margin-bottom: 28px;
            }
        }

        @media (max-width: 640px) {
            .header-top-inner {
                gap: 12px;
            }

            .brand-logo {
                font-size: 18px;
            }

            .brand-mark {
                width: 30px;
                height: 30px;
                font-size: 13px;
                border-radius: 8px;
            }

            .search-box {
                display: none;
            }

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

            .header-actions {
                gap: 8px;
            }

            .btn-small {
                height: 36px;
                padding: 0 14px;
                font-size: 13px;
            }

            .article-banner {
                padding: 40px 0 36px;
            }

            .article-title {
                font-size: 28px;
            }

            .article-meta {
                gap: 12px;
                font-size: 13px;
            }

            .article-main {
                padding: 40px 0 60px;
            }

            .article-container {
                padding: 24px 18px;
                border-radius: 12px;
            }

            .article-body {
                font-size: 15px;
                line-height: 1.75;
            }

            .article-body h2 {
                font-size: 22px;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .related-posts {
                margin-top: 48px;
            }

            .related-posts .section-title {
                font-size: 24px;
            }

            .article-cta {
                padding: 56px 20px;
            }

            .article-cta h2 {
                font-size: 24px;
            }

            .article-cta .btn-primary {
                height: 48px;
                padding: 0 32px;
                font-size: 15px;
            }

            .footer-top {
                padding-bottom: 24px;
            }
        }