/* ==========================================================================
   AegisAuth 落地页样式 - 八层防护版（Eight-Layer Shield）
   --------------------------------------------------------------------------
   设计语言：
     棕色系（amber）主色调 + 薄荷绿辅助色
     核心内容采用左图右文布局，禁止三列及以上卡片布局
     禁止使用紫色系颜色
   色板：
     --amber-500  #D4A017  主色调（琥珀金）
     --amber-600  #B8860B  深主色
     --amber-400  #EAB308  亮主色
     --mint-500   #3EB489  辅助色（薄荷绿）
     --slate-*    中性灰阶
   适配视口：桌面 ≥1024 / 平板 768-1023 / 手机 <768
   无障碍：WCAG 2.1 AA 对比度、focus-visible 轮廓、prefers-reduced-motion
   ========================================================================== */

/* ============ 1. CSS 变量（设计令牌） ============ */
:root {
    /* ---- 兼容其他页面的共享变量（disclaimer/sponsor 引用，带回退） ---- */
    --color-brand: #D4A017;
    --color-accent: #3EB489;
    --radius: 12px;
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);

    /* ---- 背景色 ---- */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8FAFC;
    --bg-code: #1E293B;
    --bg-code-header: #0F172A;

    /* ---- 文本色 ---- */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-tertiary: #94A3B8;
    --text-code: #E2E8F0;

    /* ---- 主色调（棕色系 amber） ---- */
    --amber-500: #D4A017;
    --amber-600: #B8860B;
    --amber-400: #EAB308;
    --amber-100: #FEF3C7;
    --amber-50: #FFFBEB;

    /* ---- 辅助色（薄荷绿 mint） ---- */
    --mint-500: #3EB489;
    --mint-400: #98FB98;
    --mint-50: #F0FFF8;

    /* ---- 中性灰阶 ---- */
    --slate-500: #64748B;
    --slate-200: #E2E8F0;
    --slate-100: #F1F5F9;

    /* ---- 状态色 ---- */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;

    /* ---- 边框与阴影 ---- */
    --border-light: 1px solid #E2E8F0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-amber: 0 10px 40px -10px rgba(212, 160, 23, 0.4);

    /* ---- 字体 ---- */
    --font-display: 'Fraunces', 'Noto Serif SC', Georgia, serif;
    --font-zh: 'Noto Serif SC', 'Fraunces', serif;
    --font-body: 'Manrope', 'Noto Serif SC', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    /* ---- 间距 ---- */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 48px;
    --space-xl: 80px;
    --space-2xl: 120px;
    --space-3xl: 160px;

    /* ---- 容器与圆角 ---- */
    --maxw: 1280px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;

    /* ---- 过渡 ---- */
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);

    /* ---- 兼容旧变量（header/footer 引用） ---- */
    --color-text: #0F172A;
    --color-text-muted: #475569;
    --color-text-light: #94A3B8;
    --color-border: #E2E8F0;
    --color-border-hover: #CBD5E1;
    --color-border-accent: rgba(212, 160, 23, 0.4);
    --bg-base: #FFFFFF;
    --bg-section: #FFFFFF;
    --bg-card: #FFFFFF;
    --bg-soft: #F1F5F9;
    --accent-indigo: #D4A017;
    --accent-cyan: #3EB489;
    --accent-indigo-light: #EAB308;
    --accent-cyan-light: #98FB98;
    --accent-indigo-soft: rgba(212, 160, 23, 0.1);
    --accent-cyan-soft: rgba(62, 180, 137, 0.1);
    --gradient-accent: linear-gradient(135deg, #D4A017 0%, #3EB489 100%);
    --gradient-soft: linear-gradient(135deg, rgba(212, 160, 23, 0.08) 0%, rgba(62, 180, 137, 0.08) 100%);
    --shadow-glow: 0 0 40px rgba(212, 160, 23, 0.15);
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s ease;
    --container-max: 1280px;
    --section-gap: 96px;
    --font-sans: 'Manrope', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    --radius-pill: 999px;
    --radius-xl: 24px;
}

/* ============ 2. 全局重置 ============ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    color: var(--amber-500);
    text-decoration: none;
    transition: all .3s var(--ease-out-expo);
}
a:hover { color: var(--amber-600); }

.container {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ============ 3. 页面加载动画 ============ */
.page-loader {
    position: fixed; inset: 0;
    background: var(--bg-primary);
    z-index: 9999;
    display: flex; align-items: center; justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}
.page-loader.hidden { opacity: 0; visibility: hidden; }
.loader-shield {
    width: 60px; height: 60px;
    position: relative;
}
.loader-shield::before {
    content: '';
    position: absolute; inset: 0;
    border: 3px solid var(--slate-200);
    border-top-color: var(--amber-500);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============ 4. 站点 Header（layout.php） ============ */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
    transition: all .4s var(--ease-out-expo);
}
.site-header.is-scrolled,
.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}
.header-inner {
    max-width: var(--maxw); margin: 0 auto;
    padding: var(--space-sm) var(--space-lg);
    display: flex; align-items: center; justify-content: space-between;
}
.brand {
    font-family: var(--font-display);
    font-weight: 700; font-size: 22px;
    color: var(--text-primary);
    display: flex; align-items: center; gap: 8px;
}
.brand-logo {
    width: 28px; height: 28px;
    background: linear-gradient(135deg, var(--amber-500), var(--amber-600));
    border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    color: white; font-weight: 700;
}
.brand-logo img { max-width: 100%; max-height: 100%; border-radius: 6px; }
.brand-name { color: var(--text-primary); }

.main-nav {
    display: flex; gap: var(--space-lg); align-items: center;
}
.main-nav a {
    font-size: 14px; font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}
.main-nav a:hover,
.main-nav a.is-active { color: var(--amber-500); }

.header-actions {
    display: flex; align-items: center; gap: var(--space-sm);
}
.lang-switch select {
    padding: 6px 10px;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-sm);
    background: white;
    font-size: 13px;
    cursor: pointer;
}
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle-icon { width: 24px; height: 24px; color: var(--text-primary); }

/* ============ 5. 按钮 ============ */
.btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 28px;
    font-family: var(--font-body);
    font-size: 15px; font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all .4s var(--ease-out-expo);
    border: none;
    text-decoration: none;
}
.btn-primary {
    background: linear-gradient(135deg, var(--amber-500) 0%, var(--amber-600) 100%);
    color: white !important;
    box-shadow: var(--shadow-lg);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--shadow-amber);
    color: white !important;
}
.btn-secondary {
    background: white;
    color: var(--text-primary);
    border: 1px solid var(--slate-200);
}
.btn-secondary:hover {
    border-color: var(--amber-500);
    color: var(--amber-500);
}
.btn-white {
    background: white;
    color: var(--amber-600) !important;
}
.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    color: var(--amber-600) !important;
}
.btn-outline-white {
    background: transparent;
    color: white !important;
    border: 1px solid rgba(255, 255, 255, 0.5);
}
.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    color: white !important;
}
.btn-block { width: 100%; justify-content: center; }
.btn-lg { padding: 16px 32px; font-size: 16px; }

/* ============ 6. Hero — 八层防护堆栈 ============ */
.hero-section {
    min-height: 100vh;
    display: flex; align-items: center;
    position: relative;
    overflow: hidden;
    padding: var(--space-3xl) 0 var(--space-2xl);
}
.hero-bg-circles {
    position: absolute;
    top: 50%; right: -10%;
    transform: translateY(-50%);
    width: 800px; height: 800px;
    pointer-events: none;
    opacity: 0.03;
}
.hero-bg-circles .circle {
    position: absolute;
    border: 2px solid var(--amber-500);
    border-radius: 50%;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
}
.hero-bg-circles .circle:nth-child(1) { width: 200px; height: 200px; }
.hero-bg-circles .circle:nth-child(2) { width: 400px; height: 400px; }
.hero-bg-circles .circle:nth-child(3) { width: 600px; height: 600px; }
.hero-bg-circles .circle:nth-child(4) { width: 800px; height: 800px; }

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}
.hero-text { max-width: 580px; }

.hero-badge {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 6px 14px;
    background: var(--amber-50);
    border: 1px solid var(--amber-500);
    border-radius: 100px;
    font-size: 12px; font-weight: 600;
    color: var(--amber-600);
    margin-bottom: var(--space-md);
    font-family: var(--font-mono);
}
.hero-badge-dot {
    width: 6px; height: 6px;
    background: var(--amber-500);
    border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
.text-gradient {
    background: linear-gradient(135deg, var(--amber-500), var(--amber-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-family: var(--font-zh);
    font-weight: 900;
    font-size: clamp(40px, 6vw, 64px);
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}
.hero-title .highlight {
    background: linear-gradient(135deg, var(--amber-500) 0%, var(--amber-600) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.hero-cta-row {
    display: flex; gap: var(--space-sm); flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

/* Hero 统计 */
.hero-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--slate-200);
}
.metric-value {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 32px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}
.metric-value .unit {
    font-size: 16px;
    color: var(--amber-500);
    margin-left: 2px;
}
.metric-label {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 4px;
}

/* Hero 右侧 - 八层防护堆栈 */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 560px;
}
.layer-stack {
    position: relative;
    width: 380px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.layer {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 12px 16px;
    background: white;
    border: 1px solid var(--slate-200);
    box-shadow: var(--shadow-md);
    width: 100%;
    transition: all .4s var(--ease-out-expo);
}
.layer:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--amber-500);
    z-index: 10;
}
.layer-1 { z-index: 8; }
.layer-2 { z-index: 7; }
.layer-3 { z-index: 6; }
.layer-4 { z-index: 5; }
.layer-5 { z-index: 4; }
.layer-6 { z-index: 3; }
.layer-7 { z-index: 2; }
.layer-8 { z-index: 1; }
.layer-header {
    display: flex; align-items: center; gap: 10px;
    margin-bottom: 6px;
}
.layer-num {
    width: 22px; height: 22px;
    background: var(--amber-500);
    color: white;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 10px; font-weight: 700;
    font-family: var(--font-mono);
    flex-shrink: 0;
}
.layer-name {
    font-family: var(--font-zh);
    font-weight: 700;
    font-size: 13px;
    color: var(--text-primary);
}
.layer-tag {
    margin-left: auto;
    padding: 2px 8px;
    background: var(--amber-50);
    border-radius: 4px;
    font-size: 9px;
    font-family: var(--font-mono);
    color: var(--amber-600);
    font-weight: 600;
    white-space: nowrap;
}
.layer-desc {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.5;
}
.layer-connector {
    width: 2px;
    height: 12px;
    background: linear-gradient(180deg, var(--amber-500), var(--amber-400));
    align-self: center;
    flex-shrink: 0;
}

/* ============ 7. 通用区块 ============ */
.section {
    padding: var(--space-3xl) 0;
    position: relative;
}
.section-alt { background: var(--bg-secondary); }
section[id] { scroll-margin-top: 100px; }

.section-eyebrow {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--amber-500);
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: 10px;
}
.section-eyebrow::before {
    content: '';
    width: 20px; height: 2px;
    background: var(--amber-500);
}
.section-title {
    font-family: var(--font-zh);
    font-weight: 800;
    font-size: clamp(32px, 4vw, 48px);
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}
.section-lead {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

/* ============ 8. Features — 左图右文布局 ============ */
.features-layout {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
    align-items: start;
}
.features-visual {
    position: sticky;
    top: 100px;
}
.features-arch-diagram {
    position: relative;
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.arch-layer {
    background: var(--bg-secondary);
    border: 1px dashed var(--slate-200);
    border-radius: var(--radius-md);
    padding: 16px;
    transition: all .3s var(--ease-out-expo);
}
.arch-layer:hover {
    border-color: var(--amber-500);
    border-style: solid;
    background: var(--amber-50);
}
.arch-layer-label {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--amber-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 10px;
}
.arch-items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.arch-item {
    padding: 6px 12px;
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-primary);
    transition: all .2s ease;
}
.arch-item:hover {
    border-color: var(--amber-500);
    color: var(--amber-600);
}
.features-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-bottom: 1px solid var(--slate-100);
    transition: all .3s var(--ease-out-expo);
}
.feature-item:first-child {
    border-top: 1px solid var(--slate-100);
}
.feature-item:hover {
    background: var(--amber-50);
}
.feature-item-icon {
    width: 40px; height: 40px;
    background: var(--amber-50);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.feature-item-icon svg { width: 20px; height: 20px; color: var(--amber-500); }
.feature-item-content { flex: 1; }
.feature-item-title {
    font-family: var(--font-zh);
    font-weight: 700;
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.feature-item-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============ 9. Lifecycle — 左图右文布局 ============ */
.lifecycle-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
    align-items: start;
}
.lifecycle-timeline-visual {
    position: sticky;
    top: 100px;
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
}
.lifecycle-flow-steps {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
}
.lifecycle-flow-steps::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 16px;
    bottom: 16px;
    width: 2px;
    background: linear-gradient(180deg, var(--amber-500), var(--amber-400));
    opacity: 0.2;
}
.lifecycle-step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all .3s var(--ease-out-expo);
}
.lifecycle-step:hover,
.lifecycle-step.active {
    background: var(--amber-50);
}
.lifecycle-step-dot {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 2px solid var(--slate-200);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 700;
    color: var(--text-tertiary);
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    transition: all .3s ease;
}
.lifecycle-step:hover .lifecycle-step-dot,
.lifecycle-step.active .lifecycle-step-dot {
    background: var(--amber-500);
    border-color: var(--amber-500);
    color: white;
}
.lifecycle-step-name {
    font-family: var(--font-zh);
    font-weight: 600;
    font-size: 13px;
    color: var(--text-primary);
}
.lifecycle-step-tag {
    font-size: 10px;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
}
.lifecycle-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.lifecycle-detail-card {
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    transition: all .4s var(--ease-out-expo);
}
.lifecycle-detail-card:hover {
    border-color: var(--amber-500);
    box-shadow: var(--shadow-lg);
}
.lifecycle-detail-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}
.lifecycle-detail-num {
    width: 28px; height: 28px;
    background: var(--amber-500);
    color: white;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
}
.lifecycle-detail-name {
    font-family: var(--font-zh);
    font-weight: 700;
    font-size: 16px;
    color: var(--text-primary);
}
.lifecycle-detail-tag {
    margin-left: auto;
    padding: 2px 8px;
    background: var(--amber-50);
    border-radius: 100px;
    font-size: 10px;
    font-family: var(--font-mono);
    color: var(--amber-600);
    font-weight: 600;
    white-space: nowrap;
}
.lifecycle-detail-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}
.lifecycle-detail-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.lifecycle-meta-row {
    display: flex;
    align-items: baseline;
    gap: 6px;
    font-size: 12px;
}
.lifecycle-meta-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    min-width: 48px;
    flex-shrink: 0;
}
.lifecycle-meta-value {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 12px;
}

/* ============ 10. Security — 左右布局 ============ */
.security-layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    align-items: start;
}
.attack-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.attack-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: 1px solid var(--slate-100);
    transition: background .3s ease;
}
.attack-row:last-child { border-bottom: none; }
.attack-row:hover { background: var(--amber-50); }
.attack-row-left {
    padding: 14px 18px;
    border-right: 1px solid var(--slate-100);
}
.attack-row-top {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 6px;
}
.attack-row-name {
    font-family: var(--font-zh);
    font-weight: 700;
    font-size: 14px;
    color: var(--text-primary);
}
.attack-row-risk {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    font-family: var(--font-mono);
    white-space: nowrap;
}
.attack-row-risk.high {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}
.attack-row-risk.medium {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}
.attack-row-desc {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
}
.attack-row-right {
    padding: 14px 18px;
}
.attack-row-defense-label {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    color: var(--mint-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}
.attack-row-defense-value {
    font-size: 12px;
    color: var(--text-primary);
    line-height: 1.5;
}

.security-panel {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}
.security-panel-card {
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
}
.security-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--slate-100);
}
.security-panel-title {
    font-family: var(--font-zh);
    font-weight: 700;
    font-size: 14px;
    color: var(--text-primary);
}
.security-panel-badge {
    padding: 4px 10px;
    background: var(--mint-50);
    color: var(--mint-500);
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--font-mono);
}
.security-score-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}
.security-score-row:last-child { margin-bottom: 0; }
.security-score-name {
    font-size: 12px;
    color: var(--text-secondary);
    min-width: 80px;
    flex-shrink: 0;
}
.security-score-bar {
    flex: 1;
    height: 6px;
    background: var(--slate-100);
    border-radius: 3px;
    overflow: hidden;
}
.security-score-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--amber-500), var(--amber-400));
    border-radius: 3px;
    transition: width 1s var(--ease-out-expo);
}
.security-score-val {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    color: var(--amber-600);
    min-width: 28px;
    text-align: right;
}
.encryption-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}
.encryption-cell {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 12px;
}
.encryption-cell-icon {
    width: 24px; height: 24px;
    color: var(--mint-500);
    flex-shrink: 0;
}
.encryption-cell-icon svg { width: 100%; height: 100%; }
.encryption-cell-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 12px;
}
.encryption-cell-status {
    font-size: 10px;
    color: var(--success);
    font-family: var(--font-mono);
}

/* ============ 当前安全配置卡片（动态校验） ============ */
.security-config-card {
    margin-top: 16px;
    border-top: 1px dashed rgba(217, 119, 6, 0.25);
    padding-top: 16px;
}
.security-config-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px 14px;
    margin-top: 8px;
}
.security-config-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    background: rgba(249, 250, 251, 0.6);
    border: 1px solid rgba(0, 0, 0, 0.05);
    font-size: 13px;
    color: #6b7280;
    transition: all 0.2s ease;
}
.security-config-item.enabled {
    background: rgba(16, 185, 129, 0.08);
    border-color: rgba(16, 185, 129, 0.25);
    color: #065f46;
}
.security-config-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border-radius: 8px;
    background: rgba(107, 114, 128, 0.08);
    color: #9ca3af;
    transition: background 0.2s ease, color 0.2s ease;
}
.security-config-icon svg {
    width: 18px;
    height: 18px;
    display: block;
}
.security-config-item.enabled .security-config-icon {
    background: rgba(16, 185, 129, 0.15);
    color: #059669;
}
.security-config-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.security-config-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #d1d5db;
    flex-shrink: 0;
    transition: background 0.2s ease, box-shadow 0.2s ease;
}
.security-config-item.enabled .security-config-indicator {
    background: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}
.security-config-name {
    font-weight: 500;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.security-config-state {
    font-size: 12px;
    opacity: 0.75;
    white-space: nowrap;
}
@media (max-width: 768px) {
    .security-config-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
    .security-config-grid { grid-template-columns: 1fr; }
}

/* ============ 11. Code — 左右布局 ============ */
.code-section {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
    align-items: start;
}
.code-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 0;
    flex-wrap: wrap;
}
.code-tab {
    padding: 8px 16px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all .3s ease;
    border: 1px solid transparent;
    border-bottom: none;
    font-family: var(--font-mono);
}
.code-tab:hover {
    color: var(--amber-500);
    background: var(--amber-50);
}
.code-tab.active {
    background: var(--bg-code);
    color: var(--amber-400);
    border-color: var(--slate-200);
}
.code-block {
    background: var(--bg-code);
    border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--slate-200);
}
.code-header {
    padding: 10px 16px;
    background: var(--bg-code-header);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.code-lang {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 600;
}
.code-content {
    padding: var(--space-md);
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-code);
    overflow-x: auto;
    margin: 0;
}
.ck-keyword { color: #C678DD; font-weight: 600; }
.ck-string { color: #98C379; }
.ck-comment { color: #7F848E; font-style: italic; }
.ck-function { color: #61AFEF; }
.ck-variable { color: #E06C75; }
.ck-number { color: #D19A66; }

.code-description {
    padding: var(--space-lg);
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
}
.code-description h3 {
    font-family: var(--font-zh);
    font-weight: 700;
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}
.code-description p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}
.code-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.code-features li {
    padding-left: 24px;
    position: relative;
    font-size: 13px;
    color: var(--text-primary);
}
.code-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--mint-500);
    font-weight: 700;
}

/* ============ 12. Pricing ============ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-xl);
}
.pricing-card {
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all .4s var(--ease-out-expo);
    position: relative;
}
.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--amber-500);
}
.pricing-card--popular {
    border-color: var(--amber-500);
    box-shadow: var(--shadow-amber);
}
.pricing-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--amber-500), var(--amber-600));
    color: white;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--font-mono);
    white-space: nowrap;
}
.pricing-name {
    font-family: var(--font-zh);
    font-weight: 700;
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}
.pricing-price {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 32px;
    color: var(--amber-600);
    margin-bottom: var(--space-xs);
}
.pricing-period {
    font-size: 14px;
    color: var(--text-tertiary);
    font-weight: 400;
}
.pricing-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}
.pricing-features {
    list-style: none;
    margin-bottom: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.pricing-features li {
    padding-left: 24px;
    position: relative;
    font-size: 13px;
    color: var(--text-primary);
}
.pricing-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--mint-500);
    font-weight: 700;
}

/* ============ 13. FAQ ============ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    background: white;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all .3s ease;
}
.faq-item:hover {
    border-color: var(--amber-500);
}
.faq-item.open {
    border-color: var(--amber-500);
    box-shadow: var(--shadow-md);
}
.faq-q {
    width: 100%;
    padding: var(--space-md);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    font-family: var(--font-zh);
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
}
.faq-toggle {
    font-size: 20px;
    color: var(--amber-500);
    transition: transform .3s ease;
    flex-shrink: 0;
}
.faq-item.open .faq-toggle {
    transform: rotate(45deg);
}
.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s var(--ease-out-expo);
}
.faq-item.open .faq-a {
    max-height: 500px;
}
.faq-a-inner {
    padding: 0 var(--space-md) var(--space-md);
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============ 14. CTA ============ */
.cta-section {
    background: linear-gradient(135deg, var(--amber-500) 0%, var(--amber-600) 100%);
    padding: var(--space-2xl) 0;
    position: relative;
    overflow: hidden;
}
.cta-bg-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                      radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
}
.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
}
.cta-shield-icon {
    width: 72px; height: 72px;
    margin: 0 auto var(--space-md);
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.cta-shield-icon svg { width: 36px; height: 36px; color: white; }
.cta-title {
    font-family: var(--font-zh);
    font-weight: 800;
    font-size: clamp(28px, 4vw, 42px);
    margin-bottom: var(--space-sm);
    line-height: 1.2;
}
.cta-title .highlight {
    background: linear-gradient(135deg, var(--amber-500), var(--amber-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.cta-desc {
    font-size: 17px;
    opacity: 0.9;
    margin-bottom: var(--space-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.cta-buttons {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============ 15. 站点 Footer ============ */
.site-footer {
    background: var(--bg-code-header);
    color: var(--text-code);
    padding: var(--space-xl) 0 var(--space-lg);
}
.footer-desc {
    font-size: 13px;
    opacity: 0.7;
    margin-bottom: 8px;
}
.footer-copy {
    font-size: 12px;
    opacity: 0.5;
}
.footer-copy a { color: var(--text-code); opacity: 0.7; }
.footer-copy a:hover { opacity: 1; }

/* ============ 16. 滚动揭示动画 ============ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}
.reveal.in,
.reveal.is-visible,
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============ 17. 无障碍 ============ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .reveal {
        opacity: 1;
        transform: none;
    }
}

:focus-visible {
    outline: 2px solid var(--amber-500);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============ 18. 响应式设计 ============ */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .features-layout { grid-template-columns: 1fr; }
    .features-visual { position: static; }
    .lifecycle-layout { grid-template-columns: 1fr; }
    .lifecycle-timeline-visual { position: static; }
    .code-section { grid-template-columns: 1fr; }
    .security-layout { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin-left: auto; margin-right: auto; }

    /* 导航移动端折叠（与 landing.js 的 1024px 断点一致，避免 769-1024px 之间 9 个链接溢出） */
    .nav-toggle { display: flex; }
    .main-nav {
        display: none;
        position: absolute;
        top: 100%; left: 0; right: 0;
        background: white;
        flex-direction: column;
        padding: var(--space-sm);
        border-bottom: 1px solid var(--slate-200);
        box-shadow: var(--shadow-lg);
        gap: 0;
    }
    .main-nav.is-open,
    .main-nav.open { display: flex; }
    .main-nav a {
        padding: 12px var(--space-sm);
        border-bottom: 1px solid var(--slate-100);
        width: 100%;
    }
    .main-nav a:last-child { border-bottom: none; }
}

@media (max-width: 768px) {
    .container { padding: 0 var(--space-sm); }

    /* Hero */
    .hero-section { padding: 100px 0 40px; min-height: auto; }
    .hero-title { font-size: 32px; line-height: 1.2; }
    .hero-subtitle { font-size: 15px; margin-bottom: var(--space-md); }
    .hero-cta-row { margin-bottom: var(--space-md); }
    .btn { padding: 12px 20px; font-size: 14px; }
    .hero-metrics {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 0 !important;
        padding-top: var(--space-md);
    }
    .metric-value { font-size: 28px; }
    .metric-label { font-size: 12px; }

    /* 区块 */
    .section { padding: 48px 0; }
    .section-title { font-size: 26px; }
    .section-lead { font-size: 15px; }

    /* 生命周期 */
    .lifecycle-flow-steps { flex-direction: row; flex-wrap: wrap; gap: 8px; }
    .lifecycle-flow-steps::before { display: none; }
    .lifecycle-step { flex: 1 1 calc(50% - 8px); min-width: 120px; }

    /* 安全防护 */
    .attack-row { grid-template-columns: 1fr; }
    .attack-row-left { border-right: none; border-bottom: 1px solid var(--slate-100); }
    .encryption-grid { grid-template-columns: 1fr; }

    /* 代码 */
    .code-tabs { flex-wrap: wrap; }

    /* CTA */
    .cta-buttons { flex-direction: column; }
    .cta-buttons .btn { width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
    .hero-section { padding: 100px 0 32px; }
    .hero-title { font-size: 26px; }
    .hero-subtitle { font-size: 14px; }
    .hero-metrics { grid-template-columns: repeat(3, 1fr) !important; }
    .metric-value { font-size: 24px; }
    .metric-label { font-size: 11px; }
    .hero-cta-row { flex-direction: column; }
    .hero-cta-row .btn { width: 100%; justify-content: center; }
    .btn { padding: 12px 18px; font-size: 13px; }
    .section-eyebrow { font-size: 11px; }
    .section-title { font-size: 22px; }
    .feature-item { padding: var(--space-sm); }
    .code-tab { font-size: 12px; padding: 6px 12px; }
    .cta-title { font-size: 22px; }
    .cta-desc { font-size: 14px; }
    .security-layout { grid-template-columns: 1fr; }
    .attack-row { grid-template-columns: 1fr; }
    .attack-row-left { border-right: none; border-bottom: 1px solid var(--slate-100); }
    .encryption-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   8. Contact — 联系我们（左图右文，动态加载 ContactService 数据）
   --------------------------------------------------------------------------
   设计要点：
     - 棕色系（amber）主色 + 薄荷绿（mint）辅助，禁止紫色
     - 左视觉 / 右列表 的不对称两列网格（图文比 ≈ 1:1.5）
     - 使用 dashed / dotted 边框、不对称圆角破除机械感
     - 不使用 rounded-xl + shadow-md + p-6 等高频组合
   ========================================================================== */
.contact-section {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    position: relative;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--amber-500) 50%, transparent 100%);
    opacity: 0.3;
}

/* 不对称两列网格：左视觉 1fr / 右列表 1.2fr */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-lg);
    align-items: stretch;
    margin-top: var(--space-lg);
}

/* 左侧：视觉装饰卡片 */
.contact-visual {
    position: relative;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--amber-50) 0%, var(--mint-50) 100%);
    border: 1px dashed rgba(212, 160, 23, 0.35);
    padding: var(--space-xl) var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* 装饰圆环（破除纯色块的 AI 味） */
.contact-visual::before {
    content: '';
    position: absolute;
    top: -24px; right: -24px;
    width: 168px; height: 168px;
    border: 1px solid rgba(212, 160, 23, 0.18);
    border-radius: 50%;
    pointer-events: none;
}

.contact-visual::after {
    content: '';
    position: absolute;
    bottom: -32px; left: -16px;
    width: 120px; height: 120px;
    border: 1px dashed rgba(62, 180, 137, 0.22);
    border-radius: 50%;
    pointer-events: none;
}

.contact-visual-card {
    text-align: center;
    max-width: 320px;
    position: relative;
    z-index: 1;
}

.contact-visual-shield {
    width: 120px;
    height: 120px;
    color: var(--amber-600);
    margin: 0 auto var(--space-md);
    display: block;
    filter: drop-shadow(0 6px 14px rgba(212, 160, 23, 0.18));
}

.contact-visual-text {
    font-family: var(--font-zh);
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

/* 右侧：联系方式列表容器 */
.contact-info-area {
    background: var(--bg-primary);
    border: 1px solid var(--slate-200);
    border-left: 3px solid var(--amber-500);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
}

.contact-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* 单条联系方式：图标 + 内容 */
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    border-bottom: 1px dotted var(--slate-200);
    transition: background-color .25s var(--ease-out-expo);
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-item:hover {
    background: var(--amber-50);
}

/* 图标容器：不对称圆角（8px 14px 8px 14px）破除机械感 */
.contact-item-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--amber-50);
    color: var(--amber-600);
    border: 1px solid rgba(212, 160, 23, 0.25);
    border-radius: 8px 14px 8px 14px;
    transition: background-color .3s var(--ease-out-expo), color .3s var(--ease-out-expo), border-color .3s var(--ease-out-expo);
}

.contact-item-icon svg {
    width: 20px;
    height: 20px;
    display: block;
}

.contact-item:hover .contact-item-icon {
    background: var(--amber-500);
    color: #fff;
    border-color: var(--amber-600);
}

.contact-item-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding-top: 2px;
}

.contact-item-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-family: var(--font-mono);
}

.contact-item-value {
    font-size: 15px;
    color: var(--text-primary);
    word-break: break-all;
    line-height: 1.5;
}

a.contact-item-value {
    color: var(--text-primary);
    border-bottom: 1px dashed transparent;
    transition: color .2s var(--ease-out-expo), border-color .2s var(--ease-out-expo);
}

a.contact-item-value:hover {
    color: var(--amber-600);
    border-bottom-color: var(--amber-500);
}

/* 空状态（无联系方式数据时的兜底） */
.contact-empty-state {
    padding: var(--space-lg) var(--space-md);
    text-align: center;
    border: 1px dashed var(--slate-200);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
}

.contact-empty-text {
    font-size: 14px;
    color: var(--text-tertiary);
    font-style: italic;
}

/* ============ Contact 响应式：平板（≤1023px）单列 ============ */
@media (max-width: 1023px) {
    .contact-layout {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    .contact-visual {
        padding: var(--space-lg);
    }
    .contact-visual-shield {
        width: 96px;
        height: 96px;
    }
}

/* ============ Contact 响应式：手机（≤768px）紧凑 ============ */
@media (max-width: 768px) {
    .contact-info-area {
        padding: var(--space-sm) var(--space-md);
    }
    .contact-item {
        gap: 12px;
        padding: 12px 0;
    }
    .contact-item-icon {
        width: 36px;
        height: 36px;
    }
    .contact-item-icon svg {
        width: 18px;
        height: 18px;
    }
    .contact-item-value {
        font-size: 14px;
    }
}

/* ============================================================
   内联样式迁移工具类
   ============================================================ */

/* 通用隐藏类（无 !important，允许 JS 通过 style 操作覆盖） */
.is-hidden {
    display: none;
}

/* 价格方案为空时的占位状态 */
.pricing-empty-state {
    text-align: center;
    padding: 48px 16px;
    color: var(--color-text-muted, #6B7280);
}