/**
 * flosnivis.com — 冈兰梅朵品牌视觉系统 v3
 * 设计规范：雪山青主色 + 警灯橘强调 + 冰原白底
 * VI Manual v1.0 — 2026-06-14
 * =====================================================
 * 色彩体系：
 *   品牌主色  雪山青    #1B6B5A
 *   品牌辅色  冰原白    #F7F5F0
 *   品牌强调  警灯橘    #E86730
 *   深色底    苔原墨    #1A1F1E
 *   辅助灰    高原灰    #6B7B75
 *   暖光金    暖光金    #C9A84C（成就/认证场景专用）
 *   霜降蓝    霜降蓝    #4A7C9B（链接/信息场景）
 */

/* ============ 引入 Web 字体 ============ */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

/* ============ CSS 变量（亮色主题）============ */
:root {
    /* ── 品牌主色 雪山青 ── */
    --primary:            #1B6B5A;
    --primary-light:      #2A8F78;
    --primary-dark:       #145A4B;
    --primary-bg:         rgba(27,107,90,.07);
    --primary-bg-hover:   rgba(27,107,90,.13);

    /* ── 品牌强调色 警灯橘 ── */
    --accent:             #E86730;
    --accent-light:       #F2994A;
    --accent-dark:        #C8531F;
    --accent-bg:          rgba(232,103,48,.08);
    --accent-bg-hover:    rgba(232,103,48,.15);

    /* ── 背景与表面 ── */
    --bg:                 #F7F5F0;   /* 冰原白 */
    --surface:            #FFFFFF;
    --surface-alt:        #F2F0EB;
    --surface-hover:      #ECEAE5;

    /* ── 文字 ── */
    --text:               #1A1F1E;   /* 苔原墨 */
    --text-heading:       #1A1F1E;
    --text-muted:         #6B7B75;   /* 高原灰 */
    --text-light:         #9BABA5;

    /* ── 边框 ── */
    --border:             #E5E2DB;
    --border-light:       #EDEBE5;
    --border-focus:       #1B6B5A;

    /* ── 辅助色 ── */
    --gold:               #C9A84C;   /* 暖光金，成就/认证专用 */
    --blue:               #4A7C9B;   /* 霜降蓝，链接/信息专用 */

    /* ── 渐变 ── */
    --gradient-brand:     linear-gradient(135deg, #1B6B5A 0%, #2A8F78 100%);
    --gradient-alert:     linear-gradient(135deg, #E86730 0%, #F2994A 100%);
    --gradient-sky:       linear-gradient(180deg, #1A1F1E 0%, #1B6B5A 100%);

    /* ── 阴影 ── */
    --shadow-xs:          0 1px 2px rgba(26,31,30,.04);
    --shadow-sm:          0 1px 4px rgba(26,31,30,.06);
    --shadow:             0 2px 8px rgba(26,31,30,.06);
    --shadow-md:          0 8px 24px rgba(26,31,30,.12);
    --shadow-lg:          0 16px 48px rgba(26,31,30,.16);
    --shadow-xl:          0 24px 64px rgba(26,31,30,.20);

    /* ── 圆角（VI规范）── */
    --radius-tag:         2px;
    --radius-btn:         4px;
    --radius-card:        8px;
    --radius-sm:          8px;
    --radius:             8px;
    --radius-lg:          12px;
    --radius-xl:          16px;

    /* ── 布局 ── */
    --max-width:          1280px;
    --content-max-width:  680px;     /* 正文最大宽度 */
    --header-height:      68px;
    --transition:         .25s cubic-bezier(.4,0,.2,1);

    /* ── 字体（VI规范）── */
    --font-cn:            'Noto Sans SC', 'PingFang SC', -apple-system, sans-serif;
    --font-en:            'DM Sans', 'Inter', sans-serif;
    --font-sans:          'Noto Sans SC', 'DM Sans', 'PingFang SC', -apple-system, sans-serif;
    --font-mono:          'SF Mono', 'Fira Code', 'Consolas', monospace;

    /* ── 字号层级（VI规范）── */
    --text-display:       3rem;      /* 48px Hero标题 */
    --text-h1:            2.25rem;   /* 36px */
    --text-h2:            1.75rem;   /* 28px */
    --text-h3:            1.375rem;  /* 22px */
    --text-body-lg:       1.125rem;  /* 18px */
    --text-body:          1rem;      /* 16px */
    --text-caption:       0.875rem;  /* 14px */
    --text-small:         0.75rem;   /* 12px */
}

/* ── 深色主题（苔原墨底）── */
[data-theme="dark"] {
    --primary:            #2A8F78;
    --primary-light:      #3BAF95;
    --primary-dark:       #1B6B5A;
    --primary-bg:         rgba(42,143,120,.12);
    --primary-bg-hover:   rgba(42,143,120,.20);

    --accent:             #F2994A;
    --accent-light:       #FAB06B;
    --accent-dark:        #E86730;
    --accent-bg:          rgba(242,153,74,.10);
    --accent-bg-hover:    rgba(242,153,74,.18);

    --bg:                 #1A1F1E;   /* 苔原墨 */
    --surface:            #242928;
    --surface-alt:        #1F2423;
    --surface-hover:      #2A2F2E;

    --text:               #F7F5F0;
    --text-heading:       #FFFFFF;
    --text-muted:         #9BABA5;
    --text-light:         #6B7B75;

    --border:             #2A2F2E;
    --border-light:       #252A29;

    --shadow-xs:          0 1px 2px rgba(0,0,0,.20);
    --shadow-sm:          0 1px 4px rgba(0,0,0,.25);
    --shadow:             0 2px 8px rgba(0,0,0,.30);
    --shadow-md:          0 8px 24px rgba(0,0,0,.40);
    --shadow-lg:          0 16px 48px rgba(0,0,0,.50);
    --shadow-xl:          0 24px 64px rgba(0,0,0,.60);
}

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

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

body {
    font-family: var(--font-sans);
    font-size: var(--text-body);
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    transition: color var(--transition), background var(--transition);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* ============ Typography — VI规范 ============ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-cn);
    line-height: 1.25;
    font-weight: 700;
    color: var(--text-heading);
    margin: 0 0 .5em;
    letter-spacing: .02em;
}

h1 { font-size: clamp(1.75rem, 4vw, var(--text-h1)); line-height: 1.25; }
h2 { font-size: clamp(1.375rem, 3.5vw, var(--text-h2)); line-height: 1.3; }
h3 { font-size: clamp(1.125rem, 2.5vw, var(--text-h3)); line-height: 1.35; font-weight: 500; }
h4 { font-size: var(--text-body-lg); font-weight: 600; }

p { margin: 0 0 1em; }

/* ============ 布局容器 ============ */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-label {
    display: inline-block;
    font-size: var(--text-caption);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(1.375rem, 3.5vw, var(--text-h2));
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 16px;
    position: relative;
}

/* 章节标题下划线 — 使用雪山青 */
.section-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    margin: 14px auto 0;
}

.section-desc {
    font-size: var(--text-body-lg);
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

@media (max-width: 767px) {
    .container { padding: 0 16px; }
    .section { padding: 56px 0; }
    .section-header { margin-bottom: 40px; }
}

@media (min-width: 768px) {
    .container { padding: 0 32px; }
}

@media (min-width: 1024px) {
    .container { padding: 0 40px; }
}

/* ============ 按钮 — VI规范 ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 24px;
    border: none;
    border-radius: var(--radius-btn);   /* 4px — VI规范 */
    font-size: var(--text-body);
    font-family: var(--font-sans);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    min-height: 44px;
    letter-spacing: .01em;
    line-height: 1;
}

/* 主要按钮 — 雪山青底 + 冰原白文字 */
.btn-primary {
    background: var(--primary);
    color: var(--bg);
    box-shadow: 0 2px 6px rgba(27,107,90,.20);
}
.btn-primary:hover {
    background: var(--primary-light);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(27,107,90,.28);
}

/* 警示按钮 — 警灯橘底 + 冰原白文字 */
.btn-accent {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 2px 6px rgba(232,103,48,.20);
}
.btn-accent:hover {
    background: var(--accent-light);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(232,103,48,.28);
}

/* 次要按钮 — 透明底 + 雪山青边框 */
.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}
.btn-outline:hover {
    background: var(--primary-bg);
    color: var(--primary);
    transform: translateY(-1px);
}

/* 白色轮廓按钮（用于深色背景） */
.btn-outline-white {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255,255,255,.35);
}
.btn-outline-white:hover {
    background: rgba(255,255,255,.10);
    border-color: rgba(255,255,255,.65);
    color: #fff;
    transform: translateY(-1px);
}

/* 次要橘色轮廓 */
.btn-outline-accent {
    background: transparent;
    color: var(--accent);
    border: 1.5px solid var(--accent);
}
.btn-outline-accent:hover {
    background: var(--accent-bg);
    transform: translateY(-1px);
}

.btn-lg {
    padding: 14px 32px;
    font-size: var(--text-body-lg);
    border-radius: var(--radius-btn);
}

.btn-sm {
    padding: 7px 16px;
    font-size: var(--text-caption);
    min-height: 34px;
}

/* ============ 卡片 — VI规范 ============ */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);   /* 8px — VI规范 */
    padding: 24px;
    transition: all var(--transition);
    box-shadow: var(--shadow);
}
.card:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(27,107,90,.20);
    transform: translateY(-2px);
}

/* 顶部强调线 — 雪山青 */
.card-primary {
    border-top: 3px solid var(--primary);
}

/* 避坑卡片 — 左侧警灯橘强调线 */
.card-alert {
    border-left: 4px solid var(--accent);
}

.card-title {
    font-size: var(--text-body-lg);
    font-weight: 700;
    margin: 0 0 8px;
    color: var(--text-heading);
    line-height: 1.35;
}
.card-summary {
    font-size: var(--text-caption);
    color: var(--text-muted);
    line-height: 1.6;
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-card);
    background: var(--primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.375rem;
    margin-bottom: 16px;
    color: var(--primary);
    transition: all var(--transition);
}
.card:hover .card-icon {
    background: var(--primary);
    color: #fff !important;
}
.card:hover .card-icon *,
.card:hover .card-icon *::before,
.card:hover .card-icon *::after {
    stroke: #fff !important;
    fill: #fff !important;
}

/* 文章卡片（链接型） */
a.article-card {
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    padding: 0;
}
.article-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform .5s ease;
}
a.article-card:hover .article-card-img {
    transform: scale(1.04);
}
.article-card-body {
    padding: 20px 24px 24px;
}
.article-card-body .card-title {
    font-size: 1.0625rem;
    margin-bottom: 8px;
    line-height: 1.4;
}
.article-card-meta {
    display: flex;
    gap: 16px;
    font-size: var(--text-small);
    color: var(--text-muted);
    margin-top: 12px;
}

/* ============ 标签 — VI规范 ============ */
.tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: var(--radius-tag);   /* 2px — VI规范 */
    font-size: var(--text-small);
    font-weight: 600;
    background: var(--primary-bg);
    color: var(--primary);
    letter-spacing: .03em;
}
.tag-accent {
    background: var(--accent-bg);
    color: var(--accent-dark);
}
.tag-gold {
    background: rgba(201,168,76,.10);
    color: #8B6A1E;
}
.tag-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
}

/* ============ 面包屑 ============ */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--text-caption);
    color: var(--text-muted);
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .separator { color: var(--border); }

/* ============ 分页 ============ */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 48px 0;
    flex-wrap: wrap;
}
.pagination a, .pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border-radius: var(--radius-btn);
    border: 1.5px solid var(--border);
    color: var(--text);
    font-size: var(--text-body);
    font-weight: 500;
    transition: all var(--transition);
}
.pagination a:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-bg);
}
.pagination .current {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    font-weight: 700;
}

/* ============ 表单 ============ */
.form-group { margin-bottom: 20px; }
.form-label {
    display: block;
    font-size: var(--text-caption);
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}
.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-btn);
    font-size: var(--text-body);
    font-family: var(--font-sans);
    color: var(--text);
    background: var(--surface);
    transition: border-color var(--transition), box-shadow var(--transition);
    min-height: 44px;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-bg);
}
.form-textarea {
    min-height: 120px;
    resize: vertical;
}
.form-hint {
    font-size: var(--text-small);
    color: var(--text-muted);
    margin-top: 4px;
}

/* ============ 导航栏 — VI规范 ============ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255,255,255,.93);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-xs);
    transition: all var(--transition);
}
[data-theme="dark"] .site-header {
    background: rgba(26,31,30,.93);
    border-bottom-color: var(--border);
}

.site-header.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 16px;
}

/* Logo — VI规范：中文粗体+英文大写+字间距 */
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}
.nav-logo:hover { opacity: .85; }

.logo-icon {
    height: 36px;
    width: auto;
}

.logo-text-cn {
    font-family: var(--font-cn);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-heading);
    letter-spacing: .05em;
    line-height: 1.2;
}
.logo-text-en {
    font-family: var(--font-en);
    font-size: 0.625rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: .2em;
    text-transform: uppercase;
    line-height: 1;
    margin-top: 2px;
}
/* 旧版 logo-text 兼容 */
.logo-text {
    color: var(--text-heading);
    font-family: var(--font-cn);
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: .05em;
}

/* 导航链接 — 雪山青激活色 */
.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    list-style: none;
}
.nav-links a {
    display: block;
    padding: 8px 14px;
    border-radius: var(--radius-btn);
    font-size: var(--text-caption);
    font-weight: 600;
    color: var(--text-muted);
    text-decoration: none;
    transition: all var(--transition);
    position: relative;
}
.nav-links a:hover {
    color: var(--primary);
    background: var(--primary-bg);
}
.nav-links a.active {
    color: var(--primary);
    background: var(--primary-bg);
}
.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0px;
    left: 14px;
    right: 14px;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
}

.nav-tools {
    display: flex;
    align-items: center;
    gap: 8px;
}

.theme-toggle {
    width: 38px;
    height: 38px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-btn);
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all var(--transition);
    color: var(--text-muted);
}
.theme-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-bg);
}
.theme-icon.dark { display: none; }
[data-theme="dark"] .theme-icon.light { display: none; }
[data-theme="dark"] .theme-icon.dark { display: inline; }

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 38px;
    height: 38px;
    padding: 8px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-btn);
    background: transparent;
    cursor: pointer;
    justify-content: center;
    align-items: center;
}
.hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all .25s ease;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端导航 */
.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(26,31,30,.5);
    z-index: 999;
    opacity: 0;
    transition: opacity .3s ease;
}
.nav-overlay.active {
    display: block;
    opacity: 1;
}

@media (max-width: 767px) {
    .hamburger { display: flex; }
    .nav-links {
        position: fixed;
        top: 0;
        right: -280px;
        width: 280px;
        height: 100vh;
        flex-direction: column;
        align-items: stretch;
        padding: calc(var(--header-height) + 20px) 20px 20px;
        background: var(--surface);
        border-left: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        z-index: 1000;
        transition: right .3s ease;
        gap: 0;
    }
    .nav-links.open { right: 0; }
    .nav-links a {
        padding: 12px 16px;
        border-radius: var(--radius-card);
        font-size: var(--text-body);
    }
}

/* ============ 页脚 — VI规范：苔原墨底 ============ */
.site-footer {
    background: #1A1F1E;   /* 苔原墨 */
    color: rgba(247,245,240,.75);
    padding: 72px 0 0;
}
.site-footer a {
    color: rgba(247,245,240,.65);
    transition: color var(--transition);
}
.site-footer a:hover {
    color: #2A8F78;   /* 雪山青-浅 */
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 48px;
}
@media (max-width: 767px) {
    .footer-grid { grid-template-columns: 1fr; gap: 36px; }
}
@media (min-width: 768px) and (max-width: 1023px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
.footer-logo {
    font-family: var(--font-cn);
    font-size: 1.125rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: .05em;
    margin-bottom: 6px;
}
.footer-logo-en {
    font-family: var(--font-en);
    font-size: 0.625rem;
    font-weight: 700;
    color: rgba(247,245,240,.4);
    letter-spacing: .2em;
    text-transform: uppercase;
    margin-bottom: 14px;
}
.footer-desc {
    font-size: var(--text-caption);
    line-height: 1.7;
    margin-bottom: 10px;
    color: rgba(247,245,240,.65);
}
/* 品牌主张 — 雪山青高亮 */
.footer-slogan {
    font-size: var(--text-caption);
    color: #2A8F78;
    font-weight: 600;
    font-style: italic;
}
.footer-nav h4,
.footer-contact h4 {
    font-size: 0.9375rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: .03em;
}
.footer-nav ul { list-style: none; }
.footer-nav li { margin-bottom: 10px; }
.footer-nav a { font-size: var(--text-caption); }
.footer-contact ul {
    list-style: none;
    margin-bottom: 16px;
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    font-size: var(--text-caption);
}
.contact-icon { font-size: 1rem; }
.footer-qrcode { text-align: center; }
.qrcode-img {
    width: 110px;
    height: 110px;
    border-radius: var(--radius-card);
    border: 2px solid rgba(255,255,255,.15);
    cursor: pointer;
    object-fit: cover;
    transition: border-color var(--transition);
}
.qrcode-img:hover { border-color: #2A8F78; }
.qrcode-label {
    display: block;
    font-size: var(--text-small);
    margin-top: 8px;
    color: rgba(255,255,255,.4);
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 24px 0;
    margin-top: 48px;
    text-align: center;
    font-size: var(--text-small);
    color: rgba(255,255,255,.3);
}
.footer-icp {
    margin-top: 4px;
    font-size: 11px;
    color: rgba(255,255,255,.25);
}

/* ============ Hero 区域 — 雪山渐变 ============ */
.hero-section {
    position: relative;
    padding: 100px 0 80px;
    text-align: center;
    background: var(--gradient-brand);
    color: #fff;
    overflow: hidden;
}

/* 等高线纹理叠层 */
.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 50% at 20% 50%, rgba(247,245,240,.05) 0%, transparent 60%),
        radial-gradient(ellipse 40% 70% at 80% 20%, rgba(232,103,48,.06) 0%, transparent 50%);
    pointer-events: none;
}

/* 底部渐出 */
.hero-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(to top, var(--bg), transparent);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 740px;
    margin: 0 auto;
}

/* 徽标/标签 */
.hero-badge {
    display: inline-block;
    padding: 5px 16px;
    border-radius: 2px;
    background: rgba(247,245,240,.12);
    border: 1px solid rgba(247,245,240,.20);
    font-size: var(--text-small);
    font-weight: 700;
    color: rgba(247,245,240,.85);
    margin-bottom: 24px;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(1.75rem, 6vw, var(--text-display));
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    line-height: 1.2;
    letter-spacing: .02em;
}

/* 警灯橘强调词 */
.hero-title-accent {
    color: #F2994A;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, var(--text-body-lg));
    color: rgba(247,245,240,.75);
    max-width: 560px;
    margin: 0 auto 36px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ============ 统计数字条 ============ */
.stats-bar {
    padding: 48px 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border-light);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}
.stats-item { padding: 8px; }
.stats-number {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 6px;
    font-family: var(--font-en);
}
.stats-number .accent { color: var(--accent); }
.stats-label {
    font-size: var(--text-caption);
    color: var(--text-muted);
    font-weight: 500;
}
@media (max-width: 767px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}

/* ============ 特色卡片区 ============ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 32px 24px;
    text-align: center;
    transition: all var(--transition);
}
.feature-card:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(27,107,90,.20);
    transform: translateY(-3px);
}
.feature-card .feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-card);
    background: var(--primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.625rem;
    margin: 0 auto 18px;
    transition: all var(--transition);
    color: var(--primary);
}
.feature-card:hover .feature-icon {
    background: var(--primary);
    color: #fff !important;
}
.feature-card:hover .feature-icon *,
.feature-card:hover .feature-icon *::before,
.feature-card:hover .feature-icon *::after {
    stroke: #fff !important;
    fill: #fff !important;
}
.feature-card h3 {
    font-size: var(--text-h3);
    margin-bottom: 10px;
}
.feature-card p {
    font-size: var(--text-caption);
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
}
@media (max-width: 767px) { .features-grid { grid-template-columns: 1fr; } }
@media (min-width: 768px) and (max-width: 1023px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============ 内容区两栏布局 ============ */
.content-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.content-two-col.reverse { direction: rtl; }
.content-two-col.reverse > * { direction: ltr; }
.content-image {
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}
.content-image img { width: 100%; height: auto; object-fit: cover; }
.content-text h2 {
    font-size: clamp(1.25rem, 3vw, var(--text-h2));
    margin-bottom: 16px;
}
.content-text p {
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 16px;
    font-size: var(--text-body);
}
.content-text .content-highlights { list-style: none; margin: 20px 0; }
.content-text .content-highlights li {
    padding: 6px 0 6px 24px;
    position: relative;
    font-size: var(--text-caption);
    color: var(--text-muted);
}
.content-text .content-highlights li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 13px;
    width: 8px;
    height: 2px;
    background: var(--primary);
}
@media (max-width: 767px) {
    .content-two-col { grid-template-columns: 1fr; gap: 32px; }
}

/* ============ CTA 横幅 — 品牌主色渐变 ============ */
.cta-banner {
    background: var(--gradient-brand);
    border-radius: var(--radius-card);
    padding: 56px 48px;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}
/* 避坑专题用警醒渐变 */
.cta-banner.alert {
    background: var(--gradient-alert);
}
.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 50% at 30% 50%, rgba(247,245,240,.06) 0%, transparent 60%);
    pointer-events: none;
}
.cta-banner h2 {
    color: #fff;
    font-size: clamp(1.375rem, 3vw, 1.875rem);
    margin-bottom: 12px;
    position: relative;
}
.cta-banner p {
    color: rgba(247,245,240,.7);
    max-width: 500px;
    margin: 0 auto 28px;
    position: relative;
    font-size: var(--text-body-lg);
}
.cta-banner .btn-accent { position: relative; }
.cta-banner .btn-outline-white { position: relative; }

@media (max-width: 767px) {
    .cta-banner { padding: 40px 24px; }
}

/* ============ 关于区块 ============ */
.about-brief {
    display: grid;
    grid-template-columns: 1.8fr 1fr;
    gap: 56px;
    align-items: center;
}
.about-brief-text h2 {
    font-size: clamp(1.25rem, 3vw, var(--text-h2));
    margin-bottom: 18px;
}
.about-brief-text p {
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 14px;
    font-size: var(--text-body);
}
.about-brief-qr {
    text-align: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 28px 20px;
    box-shadow: var(--shadow);
}
.about-brief-qr img {
    width: 160px;
    height: 160px;
    border-radius: var(--radius-card);
    border: 1px solid var(--border);
    cursor: pointer;
    object-fit: cover;
    margin: 0 auto;
}
.about-brief-qr p {
    margin-top: 14px;
    font-size: var(--text-caption);
    color: var(--text-muted);
}
.about-brief-qr .qr-title {
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 4px;
}
@media (max-width: 767px) {
    .about-brief { grid-template-columns: 1fr; text-align: center; gap: 32px; }
}

/* ============ 文章网格 ============ */
.article-grid,
.pitfall-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
    gap: 24px;
}
@media (max-width: 767px) {
    .article-grid,
    .pitfall-grid { grid-template-columns: 1fr; }
}



/* ============ 文章详情页 — 正文最大宽度 680px ============ */
.article-detail {
    max-width: 680px;    /* VI规范：正文最大宽度 */
    margin: 0 auto;
}
.article-detail-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-light);
}
.article-detail-header h1 {
    font-size: clamp(1.375rem, 4vw, var(--text-h1));
    margin-bottom: 16px;
    line-height: 1.25;
}
.article-detail-meta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    font-size: var(--text-caption);
    color: var(--text-muted);
}
.article-content {
    font-size: var(--text-body-lg);
    line-height: 1.9;
    color: var(--text);
}
.article-content h2 {
    font-size: var(--text-h2);
    margin: 2em 0 .75em;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border-light);
}
.article-content h3 {
    font-size: var(--text-h3);
    margin: 1.75em 0 .5em;
}
.article-content p { margin-bottom: 1.25em; }
.article-content img {
    border-radius: var(--radius-card);
    margin: 24px auto;
}

/* 引用块 — 左侧警灯橘竖条（VI规范公众号风格延伸到网站） */
.article-content blockquote {
    border-left: 4px solid var(--accent);
    padding: 16px 24px;
    margin: 24px 0;
    background: var(--surface-alt);
    border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
    color: var(--text-muted);
    font-style: italic;
}
.article-content ul,
.article-content ol { margin: 16px 0; padding-left: 24px; }
.article-content li { margin-bottom: 8px; }

/* ============ 联系表单 ============ */
.contact-page {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}
.contact-info-card,
.contact-form-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 32px;
}
.contact-form-card { box-shadow: var(--shadow); }
.contact-info-card h3 { font-size: var(--text-h3); margin-bottom: 20px; }
.contact-info-item {
    display: flex;
    gap: 12px;
    margin-bottom: 18px;
    align-items: flex-start;
}
.contact-info-item .ci-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-card);
    background: var(--primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-body-lg);
    flex-shrink: 0;
    color: var(--primary);
}
.contact-info-item .ci-text {
    font-size: var(--text-caption);
    color: var(--text-muted);
    line-height: 1.6;
}
.contact-info-item .ci-text strong {
    display: block;
    color: var(--text-heading);
    font-size: var(--text-caption);
    margin-bottom: 2px;
}
@media (max-width: 767px) { .contact-page { grid-template-columns: 1fr; } }

/* ============ 二维码模态框 ============ */
.qr-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(26,31,30,.7);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(4px);
}
.qr-modal.active { display: flex; }
.qr-modal-content {
    background: var(--surface);
    border-radius: var(--radius-card);
    padding: 32px;
    text-align: center;
    max-width: 90vw;
    box-shadow: var(--shadow-xl);
}
.qr-modal-content img {
    width: 260px;
    height: 260px;
    border-radius: var(--radius-card);
    object-fit: cover;
}
.qr-modal-content p {
    margin-top: 14px;
    font-size: var(--text-body);
    color: var(--text-muted);
    font-weight: 600;
}

/* ============ 回到顶部 ============ */
.back-to-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
    z-index: 999;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ============ 品牌引言区 ============ */
.brand-quote {
    background: var(--primary-dark);
    color: rgba(247,245,240,.9);
    padding: 64px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.brand-quote::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 50% 50%, rgba(42,143,120,.15) 0%, transparent 70%);
    pointer-events: none;
}
.brand-quote blockquote {
    position: relative;
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 700;
    font-style: normal;
    color: #fff;
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.5;
    letter-spacing: .03em;
}
.brand-quote blockquote::before {
    content: '"';
    display: block;
    font-size: 3rem;
    color: #2A8F78;
    line-height: 1;
    margin-bottom: 8px;
    font-family: Georgia, serif;
}
.brand-quote cite {
    display: block;
    margin-top: 20px;
    font-size: var(--text-caption);
    color: rgba(247,245,240,.5);
    font-style: normal;
    letter-spacing: .05em;
}

/* ============ 避坑警示区 ============ */
.pitfall-alert-banner {
    background: var(--accent-bg);
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius-card) var(--radius-card) 0;
    padding: 16px 20px;
    margin: 24px 0;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}
.pitfall-alert-banner .alert-icon {
    font-size: 1.25rem;
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 1px;
}
.pitfall-alert-banner .alert-text {
    font-size: var(--text-body);
    color: var(--text);
    line-height: 1.6;
}

/* ============ 空状态 ============ */
.empty-state {
    text-align: center;
    padding: 64px 24px;
    color: var(--text-muted);
}
.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: .4;
}
.empty-state h3 {
    font-size: var(--text-body-lg);
    margin-bottom: 8px;
    color: var(--text-heading);
}
.empty-state p {
    font-size: var(--text-caption);
    max-width: 400px;
    margin: 0 auto;
}

/* ============ 工具类 ============ */
.text-center   { text-align: center; }
.text-left     { text-align: left; }
.text-muted    { color: var(--text-muted); }
.text-accent   { color: var(--accent); }
.text-primary  { color: var(--primary); }
.text-gold     { color: var(--gold); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mb-5 { margin-bottom: 48px; }
.flex          { display: flex; }
.items-center  { align-items: center; }
.justify-center{ justify-content: center; }
.gap-2         { gap: 16px; }
.gap-3         { gap: 24px; }
.hidden        { display: none !important; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}

/* ============ 动画 ============ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
.animate-fade-in    { animation: fadeIn .6s ease both; }
.animate-fade-in-up { animation: fadeInUp .6s ease both; }

/* ===== VI 图形元素 ===== */

/* 等高线背景纹理（Hero区域） */
.hero-section {
    position: relative;
    overflow: hidden;
}
.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cpath d='M10,60 Q50,30 100,60 Q150,90 190,60' fill='none' stroke='%231B6B5A' stroke-width='0.8' opacity='0.08'/%3E%3Cpath d='M10,90 Q50,60 100,90 Q150,120 190,90' fill='none' stroke='%231B6B5A' stroke-width='0.8' opacity='0.06'/%3E%3Cpath d='M10,120 Q50,90 100,120 Q150,150 190,120' fill='none' stroke='%231B6B5A' stroke-width='0.8' opacity='0.04'/%3E%3C/svg%3E") repeat,
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'%3E%3Ccircle cx='30' cy='30' r='25' fill='none' stroke='%231B6B5A' stroke-width='0.5' opacity='0.04'/%3E%3C/svg%3E") repeat;
    background-size: 200px 200px, 60px 60px;
    pointer-events: none;
    z-index: 0;
}
.hero-content {
    position: relative;
    z-index: 1;
}

/* 雷区标记 ✕（避坑卡片） */
.pitfall-card {
    position: relative;
    overflow: hidden;
    border-left: 4px solid var(--accent);
}
.pitfall-card::before {
    content: '✕';
    position: absolute;
    top: -10px;
    right: -10px;
    width: 60px;
    height: 60px;
    background: var(--accent);
    color: #fff;
    font-size: 20px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0 0 0 12px;
    opacity: 0.18;
    pointer-events: none;
}
.pitfall-number {
    position: relative;
    background: var(--accent-bg);
    color: var(--accent);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 12px;
}
.pitfall-card .pitfall-number::after {
    content: '✕';
    position: absolute;
    right: -18px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 10px;
    color: var(--accent);
    opacity: 0.35;
}

/* 虚线轨迹线装饰 */
.path-trail {
    position: relative;
    padding-left: 32px;
}
.path-trail::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: repeating-linear-gradient(
        to bottom,
        var(--brand) 0px,
        var(--brand) 6px,
        transparent 6px,
        transparent 12px
    );
    opacity: 0.25;
}
.path-trail::after {
    content: '';
    position: absolute;
    left: 7px;
    top: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.5;
}

/* 数据条装饰线 */
.stats-bar {
    position: relative;
}
.stats-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--brand) 20%,
        var(--accent) 50%,
        var(--brand) 80%,
        transparent 100%
    );
    opacity: 0.15;
}

/* SVG 图标基础样式 */
.icon {
    display: inline-block;
    width: 24px;
    height: 24px;
    vertical-align: middle;
    flex-shrink: 0;
}
.icon-sm { width: 16px; height: 16px; }
.icon-lg { width: 32px; height: 32px; }
.icon-xl { width: 48px; height: 48px; }

/* 服务卡片图标 */
.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-card);
    background: var(--primary-bg);
    margin-bottom: 16px;
}
.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary);
}

/* 联系图标 */
.contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    color: var(--primary);
}

/* Hero badge — 纯品牌文字 */
.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-tag);
    font-size: var(--text-caption);
    font-weight: 500;
    color: rgba(255,255,255,0.9);
    letter-spacing: 1px;
    margin-bottom: 20px;
    backdrop-filter: blur(4px);
}

/* 暗色模式 - 等高线 */
[data-theme="dark"] .hero-section::before {
    background:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cpath d='M10,60 Q50,30 100,60 Q150,90 190,60' fill='none' stroke='%231B6B5A' stroke-width='0.8' opacity='0.12'/%3E%3Cpath d='M10,90 Q50,60 100,90 Q150,120 190,90' fill='none' stroke='%231B6B5A' stroke-width='0.8' opacity='0.09'/%3E%3C/svg%3E") repeat;
}

/* 文章阅读量图标 */
.view-icon {
    display: inline-block;
    width: 14px;
    height: 14px;
    vertical-align: -2px;
    color: var(--text-muted);
}

/* ===== VI 图形元素 ===== */

/* 等高线背景纹理（Hero区域） */
.hero-section {
    position: relative;
    overflow: hidden;
}
.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cpath d='M10,60 Q50,30 100,60 Q150,90 190,60' fill='none' stroke='%231B6B5A' stroke-width='0.8' opacity='0.08'/%3E%3Cpath d='M10,90 Q50,60 100,90 Q150,120 190,90' fill='none' stroke='%231B6B5A' stroke-width='0.8' opacity='0.06'/%3E%3Cpath d='M10,120 Q50,90 100,120 Q150,150 190,120' fill='none' stroke='%231B6B5A' stroke-width='0.8' opacity='0.04'/%3E%3C/svg%3E") repeat,
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'%3E%3Ccircle cx='30' cy='30' r='25' fill='none' stroke='%231B6B5A' stroke-width='0.5' opacity='0.04'/%3E%3C/svg%3E") repeat;
    background-size: 200px 200px, 60px 60px;
    pointer-events: none;
    z-index: 0;
}
.hero-content {
    position: relative;
    z-index: 1;
}
/* 虚线轨迹线装饰 */
.path-trail {
    position: relative;
    padding-left: 32px;
}
.path-trail::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: repeating-linear-gradient(
        to bottom,
        var(--brand) 0px,
        var(--brand) 6px,
        transparent 6px,
        transparent 12px
    );
    opacity: 0.25;
}
.path-trail::after {
    content: '';
    position: absolute;
    left: 7px;
    top: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.5;
}

/* 数据条装饰线 */
.stats-bar {
    position: relative;
}
.stats-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--brand) 20%,
        var(--accent) 50%,
        var(--brand) 80%,
        transparent 100%
    );
    opacity: 0.15;
}

/* SVG 图标基础样式 */
.icon {
    display: inline-block;
    width: 24px;
    height: 24px;
    vertical-align: middle;
    flex-shrink: 0;
}
.icon-sm { width: 16px; height: 16px; }
.icon-lg { width: 32px; height: 32px; }
.icon-xl { width: 48px; height: 48px; }

/* 服务卡片图标 */
.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-card);
    background: var(--primary-bg);
    margin-bottom: 16px;
}
.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary);
}

/* 联系图标 */
.contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    color: var(--primary);
}

/* Hero badge — 纯品牌文字 */
.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-tag);
    font-size: var(--text-caption);
    font-weight: 500;
    color: rgba(255,255,255,0.9);
    letter-spacing: 1px;
    margin-bottom: 20px;
    backdrop-filter: blur(4px);
}

/* 暗色模式 - 等高线 */
[data-theme="dark"] .hero-section::before {
    background:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cpath d='M10,60 Q50,30 100,60 Q150,90 190,60' fill='none' stroke='%231B6B5A' stroke-width='0.8' opacity='0.12'/%3E%3Cpath d='M10,90 Q50,60 100,90 Q150,120 190,90' fill='none' stroke='%231B6B5A' stroke-width='0.8' opacity='0.09'/%3E%3C/svg%3E") repeat;
}

/* 文章阅读量图标 */
.view-icon {
    display: inline-block;
    width: 14px;
    height: 14px;
    vertical-align: -2px;
    color: var(--text-muted);
}