/*
Theme Name: CloudADS
Theme URI: https://www.cloudads.cn
Author: CloudADS
Author URI: https://www.cloudads.cn
Description: CloudADS 广告代理公司主题 — 数字广告代理 | 广告代投平台 | 程序化广告代理
Version: 1.0.0
License: GPL v2
Text Domain: cloudads
*/

/* ========== CSS Variables ========== */
:root {
    --bg: #F8FAFC;
    --card: #FFFFFF;
    --card-hover: #F1F5F9;
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --primary-light: #DBEAFE;
    --success: #10B981;
    --success-light: #D1FAE5;
    --accent: #F97316;
    --accent-light: #FFF7ED;
    --text: #1E293B;
    --text-muted: #64748B;
    --text-soft: #94A3B8;
    --border: #E2E8F0;
    --border-light: #F1F5F9;
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;
    --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.03);
    --shadow-lg: 0 10px 25px -5px rgba(37,99,235,0.08), 0 8px 10px -6px rgba(37,99,235,0.04);
    --shadow-hover: 0 20px 25px -5px rgba(37,99,235,0.1), 0 10px 10px -5px rgba(37,99,235,0.04);
    --transition: all 0.3s ease;

    /* Header */
    --header-bg: rgba(255,255,255,0.92);
    --header-border: rgba(226,232,240,0.8);
}

/* Dark Theme */
html[data-theme="dark"] {
    --bg: #0F172A;
    --card: #1E293B;
    --card-hover: #233044;
    --primary: #3B82F6;
    --primary-dark: #60A5FA;
    --primary-light: #1E3A5F;
    --success: #34D399;
    --success-light: #064E3B;
    --accent: #FB923C;
    --accent-light: #431407;
    --text: #F1F5F9;
    --text-muted: #94A3B8;
    --text-soft: #64748B;
    --border: #334155;
    --border-light: #1E293B;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.5);
    --shadow-hover: 0 20px 25px -5px rgba(59,130,246,0.15), 0 10px 10px -5px rgba(59,130,246,0.05);
    --header-bg: rgba(15,23,42,0.92);
    --header-border: rgba(51,65,85,0.8);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    transition: background 0.3s ease, color 0.3s ease;
}

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

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

/* ========== Reading Progress Bar ========== */
.reading-progress {
    position: fixed; top: 0; left: 0; z-index: 9999;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--success), var(--accent));
    width: 0%;
    transition: width 0.1s linear;
}

/* ========== Header / Navigation ========== */
.site-header {
    background: var(--header-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--header-border);
    position: sticky; top: 0; z-index: 100;
    padding: 0 24px;
}

.header-inner {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    height: 68px;
}

.site-logo {
    font-size: 1.4rem; font-weight: 800; color: var(--text);
    letter-spacing: -0.02em; text-decoration: none;
}
.site-logo span { color: var(--primary); }
.site-logo:hover { color: var(--text); }

/* Desktop Nav */
.nav-desktop { display: none; }
.nav-desktop ul { display: flex; list-style: none; gap: 4px; }
.nav-desktop > ul > li { position: relative; }
.nav-desktop > ul > li > a {
    display: block; padding: 8px 14px; color: var(--text-muted);
    font-size: 0.875rem; font-weight: 500; border-radius: var(--radius);
    transition: var(--transition); white-space: nowrap;
}
.nav-desktop > ul > li > a:hover,
.nav-desktop > ul > li.current-menu-item > a {
    color: var(--primary); background: var(--primary-light);
}
.nav-desktop .sub-menu {
    display: none; position: absolute; top: 100%; left: 0;
    min-width: 180px; background: var(--card);
    border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow-lg); padding: 6px 0; list-style: none; z-index: 10;
}
.nav-desktop > ul > li:hover > .sub-menu { display: block; }
.nav-desktop .sub-menu a {
    display: block; padding: 8px 18px; color: var(--text-muted);
    font-size: 0.85rem; transition: var(--transition);
}
.nav-desktop .sub-menu a:hover {
    color: var(--primary); background: var(--primary-light);
}

@media (min-width: 1024px) { .nav-desktop { display: flex; } }

/* Header Right */
.header-right { display: flex; align-items: center; gap: 8px; }

.header-cta {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 18px; background: var(--accent); color: #fff;
    border-radius: 50px; font-size: 0.85rem; font-weight: 600;
    transition: var(--transition); white-space: nowrap;
    animation: pulse-subtle 2s infinite;
}
.header-cta:hover { background: #EA580C; color: #fff; transform: translateY(-1px); }

@keyframes pulse-subtle {
    0%, 100% { box-shadow: 0 0 0 0 rgba(249,115,22,0.3); }
    50% { box-shadow: 0 0 0 8px rgba(249,115,22,0); }
}

/* Mobile Toggle */
.menu-toggle {
    display: flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border: none; background: none;
    cursor: pointer; color: var(--text-muted);
}
@media (min-width: 1024px) { .menu-toggle { display: none; } }

/* Theme Toggle */
.theme-toggle {
    display: flex; align-items: center; justify-content: center;
    width: 36px; height: 36px; border: 1px solid var(--border);
    border-radius: 50%; background: var(--card); cursor: pointer;
    color: var(--text-muted); transition: var(--transition); position: relative;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
    transition: opacity 0.3s;
}
.theme-toggle .icon-sun { opacity: 0; }
.theme-toggle .icon-moon { opacity: 1; }
html[data-theme="dark"] .theme-toggle .icon-sun { opacity: 1; }
html[data-theme="dark"] .theme-toggle .icon-moon { opacity: 0; }

/* Mobile Nav */
.mobile-nav {
    display: none; position: fixed; top: 68px; left: 0; right: 0; bottom: 0;
    background: var(--bg); z-index: 9998; padding: 20px; overflow-y: auto;
}
.mobile-nav.active { display: block; }
.mobile-nav ul { list-style: none; }
.mobile-nav li { border-bottom: 1px solid var(--border); }
.mobile-nav a {
    display: block; padding: 14px 0; color: var(--text-muted);
    font-size: 1rem; transition: var(--transition);
}
.mobile-nav > ul > li > a { font-weight: 600; color: var(--text); }
.mobile-nav .sub-menu { padding-left: 16px; }
.mobile-nav .sub-menu a { font-size: 0.9rem; padding: 10px 0; }
.mobile-nav a:hover, .mobile-nav .current-menu-item > a { color: var(--primary); }

/* ========== Container ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }

/* ========== Hero ========== */
.hero-section {
    padding: 80px 24px 60px;
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%);
    position: relative; overflow: hidden;
}
.hero-inner { max-width: 1200px; margin: 0 auto; }
.hero-grid {
    display: grid; grid-template-columns: 1fr;
    gap: 48px; align-items: center;
}
@media (min-width: 768px) { .hero-grid { grid-template-columns: 1fr 1fr; } }

.hero-badge {
    display: inline-block; padding: 6px 16px;
    background: var(--primary); color: #fff;
    border-radius: 50px; font-size: 0.8rem; font-weight: 600;
    margin-bottom: 20px;
}
.hero-title {
    font-size: 2.2rem; font-weight: 800; line-height: 1.25;
    color: var(--text); margin-bottom: 16px;
}
.hero-title span { color: var(--primary); }
@media (min-width: 768px) { .hero-title { font-size: 2.8rem; } }
.hero-desc {
    font-size: 1.05rem; color: var(--text-muted);
    margin-bottom: 32px; max-width: 500px; line-height: 1.8;
}
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }

.btn-primary {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 14px 32px; background: var(--primary); color: #fff;
    border-radius: 50px; font-size: 0.95rem; font-weight: 600;
    border: none; cursor: pointer; transition: var(--transition);
    text-decoration: none;
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-hover); }

.btn-accent {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 14px 32px; background: var(--accent); color: #fff;
    border-radius: 50px; font-size: 0.95rem; font-weight: 600;
    border: none; cursor: pointer; transition: var(--transition);
    text-decoration: none;
}
.btn-accent:hover { background: #EA580C; color: #fff; transform: translateY(-2px); }

.btn-outline {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 14px 32px; background: transparent; color: var(--primary);
    border: 2px solid var(--primary); border-radius: 50px;
    font-size: 0.95rem; font-weight: 600; cursor: pointer;
    transition: var(--transition); text-decoration: none;
}
.btn-outline:hover { background: var(--primary); color: #fff; }

/* Hero Visual — 投放漏斗 */
.hero-visual {
    display: flex; flex-direction: column; gap: 12px;
    padding: 32px; background: var(--card);
    border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}
.funnel-bar { height: 12px; border-radius: 6px; }
.funnel-bar:nth-child(1) { width: 100%; background: var(--primary); opacity: 0.2; }
.funnel-bar:nth-child(2) { width: 82%; background: var(--primary); opacity: 0.35; }
.funnel-bar:nth-child(3) { width: 64%; background: var(--primary); opacity: 0.55; }
.funnel-bar:nth-child(4) { width: 46%; background: var(--success); opacity: 0.7; }
.funnel-bar:nth-child(5) { width: 28%; background: var(--success); opacity: 0.9; }
.funnel-label { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; padding: 0 4px; }

/* ========== Platform Wall ========== */
.platform-wall {
    display: grid; grid-template-columns: repeat(4,1fr);
    gap: 16px; padding: 32px 0;
    max-width: 1200px; margin: 0 auto;
}
@media (min-width: 768px) { .platform-wall { grid-template-columns: repeat(8,1fr); } }
.platform-item {
    display: flex; flex-direction: column; align-items: center; gap: 6px;
    padding: 16px 8px; background: var(--card);
    border: 1px solid var(--border); border-radius: var(--radius);
    transition: var(--transition); filter: grayscale(40%); opacity: 0.7;
}
.platform-item:hover {
    filter: grayscale(0); opacity: 1;
    border-color: var(--primary); transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}
.platform-icon {
    width: 32px; height: 32px; border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.8rem;
}
.platform-item span:last-child { font-size: 0.65rem; color: var(--text-muted); white-space: nowrap; }

/* ========== Stats ========== */
.stats-section {
    background: linear-gradient(135deg, var(--primary), #1D4ED8);
    padding: 48px 0; color: #fff;
}
.stats-grid {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 32px; text-align: center;
}
@media (min-width: 768px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }
.stat-num {
    font-size: 2.2rem; font-weight: 800; line-height: 1.2;
    display: flex; align-items: baseline; justify-content: center; gap: 2px;
}
@media (min-width: 768px) { .stat-num { font-size: 2.8rem; } }
.stat-num .suffix { font-size: 1.2rem; font-weight: 600; }
.stat-label { font-size: 0.875rem; opacity: 0.85; margin-top: 4px; }

/* ========== Section Title ========== */
.section-title { text-align: center; margin-bottom: 48px; }
.section-label {
    display: inline-block; padding: 4px 14px;
    background: var(--primary-light); color: var(--primary);
    border-radius: 50px; font-size: 0.8rem; font-weight: 600;
    margin-bottom: 12px;
}
.section-title h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 8px; }
.section-title p { color: var(--text-muted); max-width: 600px; margin: 0 auto; }
@media (min-width: 768px) { .section-title h2 { font-size: 2.2rem; } }

/* ========== Cards ========== */
.card-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 640px) { .card-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1024px) { .card-grid { grid-template-columns: repeat(3,1fr); } }

.card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px 24px;
    transition: var(--transition); box-shadow: var(--shadow);
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
.card-icon {
    width: 52px; height: 52px; border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 16px; font-size: 1.5rem;
}
.card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }
.arrow-link {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--primary); font-size: 0.85rem; font-weight: 600;
    margin-top: 12px; transition: var(--transition);
}
.arrow-link:hover { gap: 10px; }

/* ========== Process Steps（首页 5 步流程）========== */
.steps-section {
    background: linear-gradient(180deg, var(--bg) 0%, var(--card) 50%, var(--bg) 100%);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.steps-wrapper {
    max-width: 1080px; margin: 0 auto;
}
.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    align-items: start;
    position: relative;
}
/* PC 端：普通页 5 列 */
@media (min-width: 769px) {
    .steps-grid { grid-template-columns: repeat(5, 1fr); }
}
/* 首页：5 列 + 连接线（9 列网格：5卡片 + 4连接线） */
.steps-grid-home {
    gap: 0;
}
@media (min-width: 769px) {
    .steps-grid-home {
        grid-template-columns: 1fr 32px 1fr 32px 1fr 32px 1fr 32px 1fr;
    }
    .step-connector {
        display: flex; align-items: flex-start; justify-content: center;
        padding-top: 28px;
    }
    .step-connector span {
        display: block; width: 100%; height: 2px;
        background: linear-gradient(90deg, var(--primary) 0%, var(--accent,#F97316) 100%);
        border-radius: 1px;
    }
}
/* 平板：2 列 */
@media (max-width: 768px) {
    .steps-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
    .steps-grid-home { gap: 16px; }
    .step-connector { display: none; }
}
/* 手机：1 列 */
@media (max-width: 480px) {
    .steps-grid {
        grid-template-columns: 1fr;
    }
}
/* 连接线默认隐藏，PC 端由 .steps-grid-home 的 media query 开启 */
.step-connector { display: none; }

.step-item {
    text-align: center; padding: 12px 8px; position: relative;
    transition: transform 0.3s ease;
}
.step-item:hover {
    transform: translateY(-4px);
}

/* 普通页面 .step-num（内页兼容） */
.step-num {
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 1rem; margin: 0 auto 12px;
}
/* 首页：图标 + 序号组合 */
.step-icon-wrap {
    position: relative; width: 72px; height: 72px;
    margin: 0 auto 16px;
}
.step-icon {
    width: 72px; height: 72px;
    color: var(--primary);
    opacity: 0.12;
    position: absolute; top: 0; left: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.step-item:hover .step-icon {
    opacity: 0.22;
    transform: scale(1.1);
}
.step-item:hover .step-icon-wrap .step-num {
    box-shadow: 0 6px 20px rgba(37,99,235,0.5);
    transform: translate(-50%,-50%) scale(1.08);
}
.step-icon-wrap .step-num {
    width: 52px; height: 52px; margin: 0;
    background: linear-gradient(135deg, var(--primary) 0%, #3B82F6 100%);
    font-size: 1.05rem;
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%,-50%);
    box-shadow: 0 4px 14px rgba(37,99,235,0.35);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    z-index: 1;
}
.steps-grid .step-item h4 {
    font-size: 0.95rem; font-weight: 700; margin-bottom: 6px;
    transition: color 0.3s ease;
}
.step-item:hover h4 { color: var(--primary); }
.steps-grid .step-item p {
    font-size: 0.8rem; color: var(--text-muted); line-height: 1.6;
}

/* ========== Case Cards ========== */
.case-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 640px) { .case-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1024px) { .case-grid { grid-template-columns: repeat(3,1fr); } }

.case-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); overflow: hidden;
    transition: var(--transition); display: block; color: inherit;
    text-decoration: none; box-shadow: var(--shadow);
}
.case-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: var(--primary); color: inherit; }
.case-thumb { height: 180px; background: var(--border-light); overflow: hidden; position: relative; }
.case-thumb img { width: 100%; height: 100%; object-fit: cover; }
.case-body { padding: 20px; }
.case-body h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.case-body p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }
.case-metrics {
    display: flex; gap: 16px; padding: 12px 20px;
    border-top: 1px solid var(--border); flex-wrap: wrap;
}
.case-metrics span {
    font-size: 0.8rem; color: var(--text-muted);
}
.case-metrics .highlight {
    color: var(--success); font-weight: 700; font-size: 0.9rem;
}

/* ========== CTA Banner ========== */
.cta-banner {
    background: linear-gradient(135deg, var(--primary), #1E40AF);
    border-radius: var(--radius-lg); padding: 56px 32px;
    text-align: center; color: #fff;
}
.cta-banner h2 { font-size: 1.6rem; font-weight: 800; margin-bottom: 12px; }
.cta-banner p { opacity: 0.9; font-size: 1.05rem; margin-bottom: 24px; }

/* ========== Page Hero ========== */
.page-hero {
    padding: 64px 24px 48px;
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%);
    text-align: center;
}
.page-hero .section-label { margin-bottom: 16px; }
.page-hero h1 { font-size: 2rem; font-weight: 800; margin-bottom: 8px; }
.page-hero p { color: var(--text-muted); max-width: 600px; margin: 0 auto; font-size: 1.05rem; }

/* ========== Article / Content ========== */
.article-page { max-width: 800px; margin: 0 auto; padding: 48px 24px; }
.article-header { margin-bottom: 32px; }
.article-header .cat-badge {
    display: inline-block; padding: 4px 12px;
    background: var(--primary-light); color: var(--primary);
    border-radius: 50px; font-size: 0.8rem; font-weight: 600;
    margin-bottom: 12px;
}
.article-header h1 { font-size: 1.8rem; font-weight: 800; line-height: 1.35; margin-bottom: 12px; }
.article-meta { display: flex; gap: 16px; font-size: 0.85rem; color: var(--text-muted); flex-wrap: wrap; }

/* TOC */
.article-toc {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 20px; margin-bottom: 32px;
}
.article-toc summary {
    font-weight: 700; cursor: pointer; padding: 4px 0;
    color: var(--text); font-size: 0.95rem;
}
.article-toc ul { list-style: none; padding: 0; margin-top: 12px; }
.article-toc li { margin-bottom: 6px; }
.article-toc a {
    color: var(--text-muted); font-size: 0.9rem;
    display: block; padding: 4px 8px; border-radius: 4px;
    transition: var(--transition); border-left: 2px solid transparent;
}
.article-toc a:hover, .article-toc a.active-toc {
    color: var(--primary); background: var(--primary-light);
    border-left-color: var(--primary);
}
.article-toc li li a { padding-left: 24px; }

/* Article Body */
.article-body { font-size: 1.02rem; line-height: 1.85; }
.article-body h2 {
    font-size: 1.45rem; font-weight: 700; margin: 40px 0 16px;
    padding-bottom: 8px; border-bottom: 2px solid var(--border);
}
.article-body h3 { font-size: 1.2rem; font-weight: 700; margin: 32px 0 12px; }
.article-body p { margin-bottom: 16px; }
.article-body ul, .article-body ol { margin: 16px 0; padding-left: 24px; }
.article-body li { margin-bottom: 6px; }
.article-body a { color: var(--primary); text-decoration: underline; }
.article-body img { border-radius: var(--radius); margin: 24px auto; }
.article-body blockquote {
    border-left: 4px solid var(--primary);
    padding: 16px 20px; margin: 24px 0;
    background: var(--primary-light); color: var(--text-muted);
    border-radius: 0 var(--radius) var(--radius) 0;
}
.article-body code {
    background: var(--primary-light); padding: 2px 6px;
    border-radius: 4px; font-family: 'JetBrains Mono', monospace;
    font-size: 0.9em; color: var(--primary);
}
.article-body pre {
    background: #1E293B; color: #E2E8F0; padding: 20px;
    border-radius: var(--radius); overflow-x: auto;
    margin: 24px 0; font-size: 0.9rem; line-height: 1.6;
}
.article-body pre code { background: none; color: inherit; padding: 0; font-size: inherit; }

/* Tags */
.article-tags { display: flex; gap: 8px; flex-wrap: wrap; margin: 32px 0; padding-top: 32px; border-top: 1px solid var(--border); }
.article-tags span { color: var(--text-muted); font-size: 0.85rem; }
.article-tags a {
    padding: 4px 12px; background: var(--bg); border: 1px solid var(--border);
    border-radius: 50px; font-size: 0.8rem; color: var(--text-muted);
    transition: var(--transition);
}
.article-tags a:hover { color: var(--primary); border-color: var(--primary); }

/* Prev/Next */
.post-nav { display: flex; justify-content: space-between; margin: 32px 0; gap: 16px; flex-wrap: wrap; }
.post-nav a {
    display: flex; flex-direction: column; padding: 16px 20px;
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); transition: var(--transition);
    flex: 1; min-width: 200px;
}
.post-nav a:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.post-nav .nav-label { font-size: 0.75rem; color: var(--text-muted); }
.post-nav .nav-title { font-size: 0.9rem; font-weight: 600; color: var(--text); margin-top: 4px; }

/* Related Posts */
.related-posts { margin-top: 48px; padding-top: 32px; border-top: 2px solid var(--border); }
.related-posts h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 20px; }
.related-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 640px) { .related-grid { grid-template-columns: repeat(3,1fr); } }
.related-item {
    display: block; background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
    transition: var(--transition); color: inherit; text-decoration: none;
}
.related-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: var(--primary); color: inherit; }
.related-thumb { height: 120px; background: var(--border-light); overflow: hidden; }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; }
.related-info { padding: 12px; }
.related-info h4 { font-size: 0.85rem; font-weight: 600; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-info span { font-size: 0.75rem; color: var(--text-muted); }

/* ========== Platform Detail Page ========== */
.platform-hero {
    padding: 64px 24px 48px; text-align: center;
    border-bottom: 1px solid var(--border);
}
.platform-hero .platform-logo {
    width: 72px; height: 72px; border-radius: var(--radius-lg);
    margin: 0 auto 20px; font-size: 2rem; font-weight: 800;
    display: flex; align-items: center; justify-content: center;
}
.platform-hero h1 { font-size: 2rem; font-weight: 800; margin-bottom: 8px; }
.platform-hero p { color: var(--text-muted); max-width: 600px; margin: 0 auto; }

.platform-features { padding: 64px 0; }
.feature-row { display: grid; grid-template-columns: 1fr; gap: 32px; align-items: center; margin-bottom: 64px; }
@media (min-width: 768px) { .feature-row { grid-template-columns: 1fr 1fr; } }
.feature-row.reverse .feature-text { order: -1; }
@media (min-width: 768px) { .feature-row.reverse .feature-text { order: 0; } }
.feature-text h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 16px; }
.feature-text ul { list-style: none; }
.feature-text li {
    display: flex; align-items: flex-start; gap: 12px;
    padding: 10px 0; color: var(--text-muted); font-size: 0.95rem;
}
.feature-text li::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: var(--success); flex-shrink: 0; margin-top: 8px;
}
.feature-visual {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px;
    box-shadow: var(--shadow); text-align: center;
}
.feature-visual .big-num {
    font-size: 3rem; font-weight: 800; color: var(--primary);
    line-height: 1;
}
.feature-visual .big-num-label { color: var(--text-muted); font-size: 0.85rem; margin-top: 4px; }

/* ========== Agency / Management Tabs ========== */
.platform-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 32px; }
.platform-tab {
    padding: 8px 20px; background: var(--card); border: 1px solid var(--border);
    border-radius: 50px; font-size: 0.85rem; font-weight: 500; color: var(--text-muted);
    cursor: pointer; transition: var(--transition);
}
.platform-tab.active, .platform-tab:hover {
    background: var(--primary); color: #fff; border-color: var(--primary);
}

/* ========== Case Archive ========== */
.case-hero {
    padding: 64px 24px 48px;
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%);
    text-align: center;
}
.case-hero h1 { font-size: 2rem; font-weight: 800; margin-bottom: 8px; }

/* ========== Category Archive ========== */
.cat-hero {
    padding: 48px 24px 40px;
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%);
    text-align: center; border-bottom: 1px solid var(--border);
}
.cat-hero h1 { font-size: 1.8rem; font-weight: 800; }
.cat-desc { color: var(--text-muted); margin-top: 8px; max-width: 600px; margin-left: auto; margin-right: auto; }

.archive-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 640px) { .archive-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1024px) { .archive-grid { grid-template-columns: repeat(3,1fr); } }

.archive-card {
    display: block; background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); overflow: hidden;
    transition: var(--transition); color: inherit; text-decoration: none;
    box-shadow: var(--shadow);
}
.archive-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: var(--primary); color: inherit; }
.archive-thumb { height: 180px; background: var(--border-light); overflow: hidden; }
.archive-thumb img { width: 100%; height: 100%; object-fit: cover; }
.archive-info { padding: 20px; }
.archive-tags { margin-bottom: 8px; }
.archive-tags span {
    display: inline-block; padding: 2px 10px;
    background: var(--primary-light); color: var(--primary);
    border-radius: 50px; font-size: 0.7rem; font-weight: 600;
}
.archive-info h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
.archive-info p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.archive-date { font-size: 0.75rem; color: var(--text-soft); margin-top: 8px; }

/* ========== About Page ========== */
.about-hero {
    padding: 64px 24px;
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%);
    text-align: center;
}
.about-grid {
    display: grid; grid-template-columns: 1fr;
    gap: 48px; align-items: start;
}
@media (min-width: 768px) { .about-grid { grid-template-columns: 1fr 1fr; } }
.about-badges { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.about-badge {
    padding: 8px 16px; background: var(--card); border: 1px solid var(--border);
    border-radius: 50px; font-size: 0.8rem; color: var(--text-muted);
    display: flex; align-items: center; gap: 6px;
}
.about-badge::before {
    content: '✓'; color: var(--success); font-weight: 700;
}
.about-metrics {
    display: grid; grid-template-columns: repeat(2,1fr); gap: 16px;
}
.about-metric {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 24px 16px; text-align: center;
    box-shadow: var(--shadow);
}
.about-metric .num { font-size: 1.8rem; font-weight: 800; color: var(--primary); line-height: 1.2; }
.about-metric .num-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

/* ========== Contact Info ========== */
.contact-grid {
    display: grid; grid-template-columns: 1fr;
    gap: 16px;
}
@media (min-width: 640px) { .contact-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 768px) { .contact-grid { grid-template-columns: repeat(4,1fr); } }
.contact-item {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 24px 16px;
    text-align: center; transition: var(--transition);
    box-shadow: var(--shadow);
}
.contact-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.contact-item .ci-icon {
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--primary-light); color: var(--primary);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 12px; font-size: 1.2rem;
}
.contact-item h4 { font-size: 0.85rem; font-weight: 700; margin-bottom: 4px; }
.contact-item p { font-size: 0.85rem; color: var(--text-muted); word-break: break-all; }

/* ========== 联系我们双栏布局 ========== */
.contact-layout {
    display: grid; grid-template-columns: 1fr;
    gap: 32px;
}
@media (min-width: 860px) {
    .contact-layout {
        grid-template-columns: 340px 1fr;
        gap: 48px;
    }
}

/* 左侧联系方式 */
.contact-sidebar h3,
.contact-form-wrap h3 {
    font-size: 1.25rem; font-weight: 700; margin-bottom: 8px;
}
.contact-form-wrap .form-subtitle {
    color: var(--text-muted); font-size: 0.9rem; margin-bottom: 24px;
}
.contact-list { display: flex; flex-direction: column; gap: 12px; }
.contact-card {
    display: flex; align-items: flex-start; gap: 14px;
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 18px 16px;
    transition: var(--transition); box-shadow: var(--shadow);
}
.contact-card:hover { border-color: var(--primary); box-shadow: var(--shadow-hover); }
.contact-card .cc-icon {
    flex-shrink: 0; width: 40px; height: 40px;
    border-radius: 10px; background: var(--primary-light);
    color: var(--primary); display: flex; align-items: center; justify-content: center;
}
.contact-card .cc-icon svg { width: 20px; height: 20px; }
.contact-card .cc-body { flex: 1; min-width: 0; }
.contact-card .cc-body h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 2px; }
.contact-card .cc-body p { font-size: 0.9rem; color: var(--primary); font-weight: 600; word-break: break-all; }
.contact-card .cc-note { font-size: 0.72rem; color: var(--text-soft); }

/* 响应承诺 */
.contact-commit {
    margin-top: 20px; padding: 16px;
    background: linear-gradient(135deg, rgba(16,185,129,0.06), rgba(37,99,235,0.06));
    border: 1px solid var(--border); border-radius: var(--radius);
}
.contact-commit h4 { font-size: 0.85rem; font-weight: 700; margin-bottom: 8px; }
.contact-commit ul { list-style: none; padding: 0; margin: 0; }
.contact-commit ul li {
    padding: 4px 0; font-size: 0.8rem; color: var(--text-muted);
    display: flex; align-items: center; gap: 6px;
}
.contact-commit ul li::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: var(--primary); flex-shrink: 0;
}

/* 右侧表单 */
.contact-form-wrap {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px 28px;
    box-shadow: var(--shadow);
}
.contact-form { margin-top: 4px; }
.contact-form .form-row {
    display: grid; grid-template-columns: 1fr;
    gap: 16px;
}
@media (min-width: 500px) {
    .contact-form .form-row {
        grid-template-columns: 1fr 1fr;
    }
}
.contact-form .form-group { margin-bottom: 16px; }
.contact-form label {
    display: block; font-size: 0.85rem; font-weight: 600;
    margin-bottom: 6px; color: var(--text);
}
.contact-form label .req { color: var(--accent, #F97316); margin-left: 2px; }
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form select,
.contact-form textarea {
    width: 100%; padding: 10px 14px; font-size: 0.9rem; font-family: inherit;
    border: 1px solid var(--border); border-radius: 8px;
    background: var(--bg); color: var(--text);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none; box-sizing: border-box;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.contact-form textarea { resize: vertical; min-height: 100px; }
.contact-form select { cursor: pointer; }

/* Honeypot 隐藏 */
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

/* 平台复选框 */
.platform-checkboxes {
    display: flex; flex-wrap: wrap; gap: 8px;
}
.pcb-item {
    display: flex; align-items: center; gap: 5px;
    padding: 6px 12px; font-size: 0.8rem; font-weight: 500; cursor: pointer;
    border: 1px solid var(--border); border-radius: 6px;
    background: var(--bg); color: var(--text);
    transition: all 0.2s ease; user-select: none;
}
.pcb-item:hover { border-color: var(--primary); }
.pcb-item:has(input:checked) {
    background: var(--primary); color: #fff; border-color: var(--primary);
}
.pcb-item input[type="checkbox"] { display: none; }

/* 提交按钮 */
.form-submit-row { margin-top: 24px; }
.btn-submit {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 36px; font-size: 0.95rem; font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, #3B82F6 100%);
    color: #fff; border: none; border-radius: 50px; cursor: pointer;
    transition: all 0.3s ease; box-shadow: 0 4px 14px rgba(37,99,235,0.35);
}
.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37,99,235,0.5);
}
.btn-submit svg { width: 16px; height: 16px; transition: transform 0.3s ease; }
.btn-submit:hover svg { transform: translateX(3px); }
.form-tip {
    font-size: 0.72rem; color: var(--text-soft); margin-top: 10px;
}

/* 表单消息提示 */
.form-success, .form-error {
    padding: 14px 20px; border-radius: var(--radius); margin-bottom: 24px;
    font-size: 0.9rem; font-weight: 500; line-height: 1.5;
}
.form-success {
    background: rgba(16,185,129,0.08); border: 1px solid rgba(16,185,129,0.3);
    color: #065f46;
}
.form-error {
    background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.3);
    color: #991b1b;
}

/* ========== Breadcrumb ========== */
.breadcrumb {
    padding: 16px 24px; font-size: 0.8rem; color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 6px; }

/* ========== Pagination ========== */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 48px; }
.pagination .page-numbers {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 36px; height: 36px; padding: 0 10px;
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); font-size: 0.85rem;
    color: var(--text-muted); transition: var(--transition);
}
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination a:hover { border-color: var(--primary); color: var(--primary); }

/* ========== Footer ========== */
.site-footer {
    background: var(--card); border-top: 1px solid var(--border);
    padding: 48px 24px 32px;
}
.footer-grid {
    display: grid; grid-template-columns: 1fr;
    gap: 32px; max-width: 1200px; margin: 0 auto 32px;
}
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer-brand h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 8px; }
.footer-brand h3 span { color: var(--primary); }
.footer-brand p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; }
.footer-col h4 { font-size: 0.85rem; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { font-size: 0.85rem; color: var(--text-muted); transition: var(--transition); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
    max-width: 1200px; margin: 0 auto; padding-top: 24px;
    border-top: 1px solid var(--border); text-align: center;
    font-size: 0.8rem; color: var(--text-soft);
}

/* ========== Floating CTA ========== */
.floating-cta {
    position: fixed; bottom: 24px; right: 24px; z-index: 90;
    padding: 14px 24px; background: var(--accent); color: #fff;
    border-radius: 50px; font-size: 0.9rem; font-weight: 600;
    box-shadow: 0 4px 16px rgba(249,115,22,0.4);
    cursor: pointer; transition: var(--transition);
    animation: pulse-float 2s infinite; text-decoration: none;
    display: inline-flex; align-items: center; gap: 6px;
}
.floating-cta:hover { background: #EA580C; color: #fff; transform: translateY(-2px); }
@keyframes pulse-float {
    0%, 100% { box-shadow: 0 4px 16px rgba(249,115,22,0.4); }
    50% { box-shadow: 0 4px 24px rgba(249,115,22,0.6); }
}
@media (max-width: 640px) { .floating-cta { bottom: 16px; right: 16px; padding: 12px 20px; font-size: 0.8rem; } }

/* ========== Empty State ========== */
.empty-state { text-align: center; padding: 64px 0; }
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 16px; }
.empty-state p { color: var(--text-muted); }

/* ========== 404 ========== */
.error-page { text-align: center; padding: 100px 24px; }
.error-page h1 { font-size: 5rem; font-weight: 800; color: var(--primary); }
.error-page p { color: var(--text-muted); margin: 16px 0 32px; }

/* ========== Search ========== */
.search-section { padding: 48px 0; }
.search-form-inline { display: flex; gap: 8px; max-width: 500px; margin: 0 auto 32px; }
.search-form-inline input {
    flex: 1; padding: 12px 16px; border: 1px solid var(--border);
    border-radius: 50px; background: var(--card); color: var(--text);
    font-size: 0.95rem; outline: none; transition: var(--transition);
}
.search-form-inline input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.search-form-inline button {
    padding: 12px 24px; background: var(--primary); color: #fff;
    border: none; border-radius: 50px; font-size: 0.9rem; font-weight: 600;
    cursor: pointer; transition: var(--transition);
}
.search-form-inline button:hover { background: var(--primary-dark); }

/* ========== Comparison Table ========== */
.compare-table { width: 100%; border-collapse: separate; border-spacing: 0; margin: 32px 0; }
.compare-table th {
    background: var(--primary); color: #fff; padding: 12px 16px;
    font-size: 0.85rem; font-weight: 600; text-align: left;
}
.compare-table th:first-child { border-radius: var(--radius) 0 0 0; }
.compare-table th:last-child { border-radius: 0 var(--radius) 0 0; }
.compare-table td {
    padding: 12px 16px; font-size: 0.85rem; color: var(--text-muted);
    border-bottom: 1px solid var(--border); background: var(--card);
}
.compare-table tr:last-child td:first-child { border-radius: 0 0 0 var(--radius); }
.compare-table tr:last-child td:last-child { border-radius: 0 0 var(--radius) 0; }
.compare-table .highlight-row td { background: var(--success-light); font-weight: 600; color: var(--text); }
.compare-table .check { color: var(--success); }

/* ========== Optimization Page ========== */
.opt-feature-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 640px) { .opt-feature-grid { grid-template-columns: repeat(2,1fr); } }
.opt-feature {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px 24px; box-shadow: var(--shadow);
    transition: var(--transition);
}
.opt-feature:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.opt-feature .opt-icon {
    width: 48px; height: 48px; border-radius: var(--radius);
    background: var(--primary-light); color: var(--primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; margin-bottom: 16px;
}
.opt-feature h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.opt-feature p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; }

/* ========== Enhanced Platform Hero Cards ========== */
.platform-hero-grid {
    display: grid; grid-template-columns: 1fr;
    gap: 28px; margin-top: 40px;
}
@media (min-width: 640px) { .platform-hero-grid { grid-template-columns: repeat(2,1fr); } }

.platform-hero-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 0;
    overflow: hidden; transition: var(--transition);
    box-shadow: var(--shadow); position: relative;
}
.platform-hero-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}
.platform-hero-card .phc-header {
    padding: 28px 28px 20px;
    display: flex; align-items: center; gap: 16px;
    border-bottom: 1px solid var(--border);
}
.platform-hero-card .phc-icon {
    width: 56px; height: 56px; border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem; font-weight: 800; flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.platform-hero-card .phc-info { flex: 1; }
.platform-hero-card .phc-info h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 4px; }
.platform-hero-card .phc-info .phc-badge {
    display: inline-block; padding: 2px 10px;
    border-radius: 50px; font-size: 0.7rem; font-weight: 600;
}
.platform-hero-card .phc-body { padding: 24px 28px; }
.platform-hero-card .phc-body p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
.platform-hero-card .phc-features { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.platform-hero-card .phc-features li {
    padding: 4px 12px; background: var(--bg);
    border: 1px solid var(--border); border-radius: 50px;
    font-size: 0.75rem; color: var(--text-muted);
}
.platform-hero-card .phc-footer {
    padding: 16px 28px;
    border-top: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px;
}
.platform-hero-card .phc-metric {
    display: flex; flex-direction: column;
}
.platform-hero-card .phc-metric .phc-val {
    font-size: 1.4rem; font-weight: 800;
}
.platform-hero-card .phc-metric .phc-label {
    font-size: 0.7rem; color: var(--text-muted); margin-top: 2px;
}
.phc-btn {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 8px 18px; border-radius: 50px;
    font-size: 0.8rem; font-weight: 600; color: #fff;
    transition: var(--transition); text-decoration: none;
}
.phc-btn:hover { color: #fff; opacity: 0.9; }

/* ========== Data Dashboard ========== */
.dashboard-section {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 28px;
    margin: 32px 0;
    box-shadow: var(--shadow-md);
}
.dashboard-title {
    text-align: center; margin-bottom: 36px;
}
.dashboard-title h2 {
    font-size: 1.6rem; font-weight: 800; margin-bottom: 8px;
}
.dashboard-title p { color: var(--text-muted); font-size: 0.95rem; }
.dashboard-grid {
    display: grid; grid-template-columns: repeat(2,1fr);
    gap: 20px;
}
@media (min-width: 640px) { .dashboard-grid { grid-template-columns: repeat(4,1fr); } }

.dashboard-card {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 24px 20px;
    text-align: center; transition: var(--transition);
    position: relative; overflow: hidden;
}
.dashboard-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}
.dashboard-card .db-icon {
    width: 44px; height: 44px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 12px; font-size: 1.3rem;
}
.dashboard-card .db-value {
    font-size: 2rem; font-weight: 800; line-height: 1.2;
    display: flex; align-items: baseline; justify-content: center; gap: 3px;
}
.dashboard-card .db-value .db-suffix { font-size: 1rem; }
.dashboard-card .db-label {
    font-size: 0.8rem; color: var(--text-muted); margin-top: 4px;
}
.dashboard-card .db-trend {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 2px 10px; border-radius: 50px;
    font-size: 0.75rem; font-weight: 600; margin-top: 10px;
}
.db-trend-up { background: var(--success-light); color: var(--success); }
.db-trend-stable { background: var(--primary-light); color: var(--primary); }
.db-trend-down { background: var(--accent-light); color: var(--accent); }

/* Dashboard Single Metric (wide card) */
.dashboard-metric-wide {
    background: linear-gradient(135deg, var(--primary), #1E40AF);
    border-radius: var(--radius-lg); padding: 32px 28px;
    color: #fff; margin: 24px 0;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 24px;
}
.dashboard-metric-wide.light-bg {
    background: linear-gradient(135deg, var(--primary-light), #DBEAFE);
    color: var(--text);
}
.dashboard-metric-wide .dmw-text h3 { font-size: 1.3rem; font-weight: 800; margin-bottom: 4px; }
.dashboard-metric-wide .dmw-text p { opacity: 0.85; font-size: 0.9rem; }
.dashboard-metric-wide .dmw-nums { display: flex; gap: 32px; }
.dashboard-metric-wide .dmw-num {
    text-align: center;
}
.dashboard-metric-wide .dmw-num .val {
    font-size: 2rem; font-weight: 800; line-height: 1.1;
}
.dashboard-metric-wide .dmw-num .lbl {
    font-size: 0.75rem; opacity: 0.75; margin-top: 4px;
}

/* ========== FAQ Accordion ========== */
.faq-section { padding: 80px 0; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); margin-bottom: 12px;
    overflow: hidden; transition: var(--transition);
    box-shadow: var(--shadow);
}
.faq-item.active { border-color: var(--primary); }
.faq-item.active .faq-question { color: var(--primary); }
.faq-question {
    width: 100%; padding: 20px 24px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px; cursor: pointer; border: none; background: none;
    color: var(--text); font-size: 0.98rem; font-weight: 600;
    text-align: left; font-family: inherit;
    transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
    width: 28px; height: 28px; border-radius: 50%;
    background: var(--bg); border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; transition: transform 0.3s ease, background 0.3s ease;
    font-size: 1.1rem; color: var(--text-muted);
}
.faq-item.active .faq-icon {
    transform: rotate(45deg);
    background: var(--primary); color: #fff; border-color: var(--primary);
}
.faq-answer {
    max-height: 0; overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-item.active .faq-answer { max-height: 600px; }
.faq-answer-inner {
    padding: 0 24px 20px;
    color: var(--text-muted); font-size: 0.9rem;
    line-height: 1.85;
}
.faq-answer-inner ul { padding-left: 20px; margin: 8px 0; }
.faq-answer-inner li { margin-bottom: 4px; }

/* ========== Testimonials / 三段式案例 ========== */
.testimonial-section { padding: 80px 0; }
.testimonial-tabs {
    display: flex; justify-content: center; gap: 8px;
    margin-bottom: 40px; flex-wrap: wrap;
}
.testimonial-tab {
    padding: 10px 24px; background: var(--card);
    border: 1px solid var(--border); border-radius: 50px;
    font-size: 0.88rem; font-weight: 500; color: var(--text-muted);
    cursor: pointer; transition: var(--transition);
    font-family: inherit;
}
.testimonial-tab.active, .testimonial-tab:hover {
    background: var(--primary); color: #fff; border-color: var(--primary);
}
.testimonial-grid {
    display: grid; grid-template-columns: 1fr;
    gap: 28px;
}
@media (min-width: 768px) { .testimonial-grid { grid-template-columns: repeat(3,1fr); } }

.testimonial-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px 28px;
    transition: var(--transition); position: relative;
    box-shadow: var(--shadow);
}
.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}
.testimonial-card .t-quote {
    font-size: 2.5rem; color: var(--primary);
    line-height: 1; margin-bottom: 12px; opacity: 0.3;
}
.testimonial-card .t-body {
    font-size: 0.92rem; color: var(--text-muted);
    line-height: 1.8; margin-bottom: 20px;
}
.testimonial-card .t-metrics {
    display: flex; gap: 16px; flex-wrap: wrap;
    padding: 12px 0; margin-bottom: 16px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.testimonial-card .t-metric {
    text-align: center;
}
.testimonial-card .t-metric .t-val {
    font-size: 1.2rem; font-weight: 800; color: var(--success);
    line-height: 1.1;
}
.testimonial-card .t-metric .t-lbl {
    font-size: 0.7rem; color: var(--text-muted); margin-top: 2px;
}
.testimonial-card .t-author {
    display: flex; align-items: center; gap: 12px;
}
.testimonial-card .t-avatar {
    width: 44px; height: 44px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; font-weight: 700; color: #fff;
    flex-shrink: 0;
}
.testimonial-card .t-name { font-size: 0.88rem; font-weight: 700; }
.testimonial-card .t-role { font-size: 0.75rem; color: var(--text-muted); }

/* Testimonial panel hidden state */
.testimonial-panel { display: none; }
.testimonial-panel.active { display: block; animation: fadeIn 0.4s ease; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== Service Advantages Grid ========== */
.advantage-grid {
    display: grid; grid-template-columns: 1fr;
    gap: 24px; margin-top: 40px;
}
@media (min-width: 640px) { .advantage-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1024px) { .advantage-grid { grid-template-columns: repeat(3,1fr); } }

.advantage-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px 24px;
    transition: var(--transition); box-shadow: var(--shadow);
    position: relative; overflow: hidden;
}
.advantage-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0;
    height: 3px; background: linear-gradient(90deg, var(--primary), var(--success));
    transform: scaleX(0); transition: transform 0.3s ease;
}
.advantage-card:hover::before { transform: scaleX(1); }
.advantage-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}
.advantage-card .adv-num {
    font-size: 2.5rem; font-weight: 800; color: var(--primary);
    opacity: 0.15; line-height: 1; margin-bottom: 8px;
}
.advantage-card h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 8px; }
.advantage-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; }

/* ========== Company Intro Page ========== */
.company-hero {
    padding: 80px 24px 60px;
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%);
    text-align: center;
}
.company-hero h1 { font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; }
.company-hero p { color: var(--text-muted); max-width: 700px; margin: 0 auto; font-size: 1.05rem; }

.company-intro-grid {
    display: grid; grid-template-columns: 1fr;
    gap: 40px; align-items: start;
}
@media (min-width: 768px) { .company-intro-grid { grid-template-columns: 1.2fr 0.8fr; } }

.company-story { line-height: 1.9; color: var(--text-muted); }
.company-story h2 { font-size: 1.5rem; font-weight: 700; color: var(--text); margin-bottom: 16px; }
.company-story p { margin-bottom: 16px; }

.company-sidebar { position: sticky; top: 80px; }

.company-info-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px;
    box-shadow: var(--shadow); margin-bottom: 24px;
}
.company-info-card h3 {
    font-size: 1.05rem; font-weight: 700;
    margin-bottom: 16px; padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}
.company-info-card .info-row {
    display: flex; justify-content: space-between;
    padding: 8px 0; font-size: 0.9rem;
    border-bottom: 1px solid var(--border-light);
}
.company-info-card .info-row .lbl { color: var(--text-muted); }
.company-info-card .info-row .val { font-weight: 600; color: var(--text); }

/* ========== Team Section ========== */
.team-grid {
    display: grid; grid-template-columns: repeat(2,1fr);
    gap: 20px;
}
@media (min-width: 640px) { .team-grid { grid-template-columns: repeat(3,1fr); } }
@media (min-width: 1024px) { .team-grid { grid-template-columns: repeat(4,1fr); } }

.team-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px 20px;
    text-align: center; transition: var(--transition);
    box-shadow: var(--shadow);
}
.team-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}
.team-card .tm-avatar {
    width: 72px; height: 72px; border-radius: 50%;
    margin: 0 auto 16px; display: flex;
    align-items: center; justify-content: center;
    font-size: 1.5rem; font-weight: 700; color: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.team-card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 2px; }
.team-card .tm-role { font-size: 0.8rem; color: var(--primary); font-weight: 500; margin-bottom: 8px; }
.team-card .tm-desc { font-size: 0.78rem; color: var(--text-muted); line-height: 1.6; }

/* ========== Rich Service Block ========== */
.service-block { margin: 60px 0; }
.service-block-grid {
    display: grid; grid-template-columns: 1fr;
    gap: 24px;
}
@media (min-width: 768px) { .service-block-grid { grid-template-columns: repeat(2,1fr); } }

.service-block-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px 24px;
    box-shadow: var(--shadow); transition: var(--transition);
}
.service-block-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.service-block-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.service-block-card h3 .sb-icon {
    width: 36px; height: 36px; border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; flex-shrink: 0;
}
.service-block-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 12px; }
.service-block-card .sb-list { list-style: none; }
.service-block-card .sb-list li {
    padding: 4px 0; font-size: 0.83rem; color: var(--text-muted);
    display: flex; align-items: flex-start; gap: 8px;
}
.service-block-card .sb-list li::before {
    content: '✓'; color: var(--success); font-weight: 700;
    flex-shrink: 0; margin-top: 1px;
}

/* ========== CTA Strip ========== */
.cta-strip {
    background: linear-gradient(135deg, var(--accent), #EA580C);
    padding: 20px 24px; border-radius: var(--radius-lg);
    color: #fff; display: flex; align-items: center;
    justify-content: space-between; gap: 20px; flex-wrap: wrap;
    margin: 48px 0;
}
.cta-strip h3 { font-size: 1.1rem; font-weight: 700; }
.cta-strip p { font-size: 0.88rem; opacity: 0.9; }
.cta-strip .btn-white {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 12px 28px; background: #fff; color: var(--accent);
    border-radius: 50px; font-size: 0.9rem; font-weight: 700;
    text-decoration: none; transition: var(--transition);
    white-space: nowrap;
}
.cta-strip .btn-white:hover { background: #fff; color: #C2410C; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,0.2); }

/* ========== Timeline / 里程碑 ========== */
.milestone-timeline {
    position: relative; padding-left: 32px;
    margin: 32px 0;
}
.milestone-timeline::before {
    content: ''; position: absolute; left: 11px; top: 8px; bottom: 8px;
    width: 2px; background: var(--primary);
    opacity: 0.25;
}
.milestone-item {
    position: relative; margin-bottom: 28px;
}
.milestone-item::before {
    content: ''; position: absolute; left: -25px; top: 6px;
    width: 12px; height: 12px; border-radius: 50%;
    background: var(--primary); border: 2px solid var(--bg);
    box-shadow: 0 0 0 4px var(--primary-light);
}
.milestone-item .mi-year {
    font-size: 0.8rem; font-weight: 700; color: var(--primary);
    margin-bottom: 2px;
}
.milestone-item .mi-title { font-size: 0.95rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.milestone-item .mi-desc { font-size: 0.83rem; color: var(--text-muted); line-height: 1.6; }

/* ========== Ribbon Badge ========== */
.ribbon-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 20px 8px 16px;
    background: linear-gradient(135deg, var(--success-light), var(--primary-light));
    border: 1px solid var(--success);
    border-radius: 50px; font-size: 0.85rem; font-weight: 600;
    color: var(--success); margin-bottom: 20px;
}
.ribbon-badge::before { content: '🏆'; }

/* Winner Badge */
.winner-badge {
    position: absolute; top: -12px; right: 20px;
    background: linear-gradient(135deg, var(--accent), #EA580C);
    color: #fff; padding: 4px 14px; border-radius: 50px;
    font-size: 0.7rem; font-weight: 700; z-index: 1;
    box-shadow: 0 2px 8px rgba(249,115,22,0.3);
}

/* ========== Pulse Ring ========== */
@keyframes pulse-ring {
    0% { box-shadow: 0 0 0 0 rgba(37,99,235,0.4); }
    70% { box-shadow: 0 0 0 16px rgba(37,99,235,0); }
    100% { box-shadow: 0 0 0 0 rgba(37,99,235,0); }
}

/* ========== Split Hero ========== */
.hero-split {
    display: grid; grid-template-columns: 1fr;
    gap: 40px; align-items: center; padding: 64px 0 48px;
}
@media (min-width: 768px) { .hero-split { grid-template-columns: 1fr 1fr; } }
.hero-split .hs-text h1 { font-size: 2.2rem; font-weight: 800; line-height: 1.2; margin-bottom: 16px; }
.hero-split .hs-text h1 span { color: var(--primary); }
.hero-split .hs-text p { font-size: 1.05rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 24px; }
.hero-split .hs-visual {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px;
    box-shadow: var(--shadow-lg); text-align: center;
}

/* ========== Inline Stat Row ========== */
.inline-stats {
    display: flex; gap: 8px; flex-wrap: wrap;
    margin: 16px 0;
}
.inline-stat {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px; background: var(--bg);
    border: 1px solid var(--border); border-radius: 50px;
    font-size: 0.8rem; color: var(--text-muted);
}
.inline-stat .is-val { font-weight: 700; color: var(--primary); }

/* ========== Page-specific Hero Variant ========== */
.page-hero-v2 {
    padding: 72px 24px 56px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--success-light) 50%, var(--bg) 100%);
    text-align: center; position: relative; overflow: hidden;
}
.page-hero-v2::before {
    content: ''; position: absolute; top: -50%; right: -20%;
    width: 400px; height: 400px; background: var(--primary);
    border-radius: 50%; opacity: 0.03;
}
.page-hero-v2 .section-label { margin-bottom: 16px; }
.page-hero-v2 h1 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.page-hero-v2 p { color: var(--text-muted); max-width: 650px; margin: 0 auto; font-size: 1.05rem; }

/* ========== Case Study Feature Block ========== */
.case-feature-block {
    display: grid; grid-template-columns: 1fr;
    gap: 32px; margin: 48px 0; align-items: start;
}
@media (min-width: 768px) { .case-feature-block { grid-template-columns: 1fr 1fr; } }
.case-feature-block .cfb-main {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px 28px;
    box-shadow: var(--shadow);
}
.case-feature-block .cfb-main h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 16px; }
.case-feature-block .cfb-main p { color: var(--text-muted); line-height: 1.8; font-size: 0.93rem; }
.case-feature-block .cfb-metrics {
    display: grid; grid-template-columns: repeat(2,1fr);
    gap: 12px; margin-top: 20px;
}
.case-feature-block .cfb-metric {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 16px; text-align: center;
}
.case-feature-block .cfb-metric .cfbm-val {
    font-size: 1.5rem; font-weight: 800; color: var(--success);
    line-height: 1.1;
}
.case-feature-block .cfb-metric .cfbm-lbl {
    font-size: 0.75rem; color: var(--text-muted); margin-top: 4px;
}

/* ================================================================
   SECTION LABEL & HEADERS
   ================================================================ */
.section-label {
    display: inline-block; padding: 4px 16px;
    background: var(--primary-light); color: var(--primary);
    border-radius: 50px; font-size: 0.8rem; font-weight: 700;
    letter-spacing: 0.5px; text-transform: uppercase;
}
.section-title {
    font-size: 1.8rem; font-weight: 800; margin-bottom: 8px; line-height: 1.3;
}
.section-title span { color: var(--primary); }
.light-bg { background: var(--bg); }

/* ================================================================
   ENHANCED PLATFORM HERO CARD (海外/国内投放阵营)
   ================================================================ */
.platform-hero-grid {
    display: grid; grid-template-columns: repeat(2,1fr);
    gap: 20px; margin: 32px 0;
}
@media (max-width: 768px) { .platform-hero-grid { grid-template-columns: 1fr; } }
.platform-hero-card {
    background: var(--card); border: 2px solid var(--border);
    border-radius: var(--radius-lg); overflow: hidden;
    transition: var(--transition); box-shadow: var(--shadow);
}
.platform-hero-card:hover {
    border-color: var(--primary); box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}
.phc-header {
    padding: 24px 24px 16px; display: flex; align-items: center; gap: 16px;
}
.phc-icon {
    width: 56px; height: 56px; border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; font-weight: 800; color: #fff; flex-shrink: 0;
}
.phc-info h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 4px; }
.phc-info .phc-badge {
    font-size: 0.72rem; font-weight: 600; padding: 2px 10px; border-radius: 50px;
}
.phc-body { padding: 0 24px 16px; }
.phc-body p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.75; }
.phc-features {
    display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px;
}
.phc-features span {
    font-size: 0.73rem; padding: 4px 10px;
    background: var(--bg); color: var(--text-muted);
    border: 1px solid var(--border); border-radius: 50px;
    white-space: nowrap;
}
.phc-footer {
    padding: 16px 24px; background: var(--bg);
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px; border-top: 1px solid var(--border);
}
.phc-metric { text-align: center; }
.phc-metric .phc-val { font-size: 1.3rem; font-weight: 800; line-height: 1.1; }
.phc-metric .phc-label { font-size: 0.7rem; color: var(--text-muted); margin-top: 2px; }
.phc-btn {
    padding: 10px 22px; color: #fff; border-radius: var(--radius);
    font-size: 0.85rem; font-weight: 600; text-decoration: none;
    white-space: nowrap; transition: opacity 0.2s;
}
.phc-btn:hover { opacity: 0.9; }

/* ================================================================
   DASHBOARD / DATA FACTS (数据与事实看板)
   ================================================================ */
/* 内页数据看板标题 — 底部 accent 下划线 */
h2.dashboard-title {
    text-align: left; font-size: 1.2rem; font-weight: 700; margin-bottom: 24px;
    padding-bottom: 10px; border-bottom: 2px solid var(--border);
    position: relative;
}
h2.dashboard-title::after {
    content: ''; position: absolute; bottom: -2px; left: 0;
    width: 48px; height: 2px; background: var(--primary);
    border-radius: 1px;
}
.dashboard-grid {
    display: grid; grid-template-columns: repeat(4,1fr);
    gap: 16px; margin: 24px 0 40px;
}
@media (max-width: 768px) { .dashboard-grid { grid-template-columns: repeat(2,1fr); } }
.dashboard-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 24px 20px;
    text-align: center; box-shadow: var(--shadow);
    transition: var(--transition);
}
.dashboard-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.db-icon { font-size: 2rem; margin-bottom: 10px; }
.db-value { font-size: 2rem; font-weight: 800; color: var(--primary); line-height: 1.1; }
.db-label { font-size: 0.82rem; color: var(--text-muted); margin-top: 6px; }
.db-suffix { font-size: 1rem; font-weight: 600; color: var(--text-muted); }
.db-trend {
    display: inline-block; font-size: 0.75rem; font-weight: 700;
    padding: 2px 10px; border-radius: 50px; margin-top: 8px;
}
.db-trend-up { background: var(--success-light); color: var(--success); }
.db-trend-stable { background: var(--primary-light); color: var(--primary); }

/* Wide metric card (spans full width) */
.dashboard-metric-wide {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px 32px;
    display: flex; align-items: center; justify-content: space-around;
    flex-wrap: wrap; gap: 24px; box-shadow: var(--shadow);
    margin-bottom: 40px;
}
.dmw-nums { display: flex; gap: 32px; flex-wrap: wrap; }
.dmw-num { text-align: center; }
.dmw-num .dmw-val { font-size: 1.6rem; font-weight: 800; line-height: 1.1; }
.dmw-num .dmw-lbl { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }
.dmw-text { flex: 1; min-width: 200px; }
.dmw-text p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }

/* ================================================================
   ADVANTAGE CARDS (服务优势)
   ================================================================ */
.advantage-grid {
    display: grid; grid-template-columns: repeat(3,1fr);
    gap: 20px; margin: 32px 0 48px;
}
@media (max-width: 1024px) { .advantage-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 640px) { .advantage-grid { grid-template-columns: 1fr; } }
.advantage-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px 24px;
    box-shadow: var(--shadow); transition: var(--transition);
}
.advantage-card:hover {
    box-shadow: var(--shadow-hover); transform: translateY(-2px);
    border-color: var(--primary);
}
.advantage-card .card-icon {
    width: 52px; height: 52px; border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; margin-bottom: 16px;
}
.advantage-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.advantage-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; }
.card-icon.none { opacity: 0; }

/* ================================================================
   TESTIMONIALS / 三段式客户好评
   ================================================================ */
.testimonial-section { margin: 48px 0; }
.testimonial-tabs {
    display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px;
    border-bottom: 1px solid var(--border); padding-bottom: 12px;
}
.testimonial-tab {
    padding: 8px 20px; border-radius: 50px; border: 1px solid var(--border);
    background: var(--card); color: var(--text-muted); cursor: pointer;
    font-size: 0.88rem; font-weight: 600; transition: var(--transition);
    white-space: nowrap;
}
.testimonial-tab:hover { border-color: var(--primary); color: var(--primary); }
.testimonial-tab.active {
    background: var(--primary); color: #fff; border-color: var(--primary);
}
.testimonial-panel { display: none; }
.testimonial-panel.active { display: block; }
.testimonial-grid {
    display: grid; grid-template-columns: repeat(3,1fr);
    gap: 20px;
}
@media (max-width: 1024px) { .testimonial-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 640px) { .testimonial-grid { grid-template-columns: 1fr; } }
.testimonial-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px 24px;
    box-shadow: var(--shadow); transition: var(--transition);
    display: flex; flex-direction: column;
}
.testimonial-card:hover { box-shadow: var(--shadow-lg); }
.t-quote {
    position: relative; padding-top: 8px; margin-bottom: 20px;
    flex: 1;
}
.t-quote::before {
    content: '\201C'; font-size: 3rem; font-weight: 900; line-height: 1;
    position: absolute; top: -16px; left: -4px; 
    color: var(--primary); opacity: 0.2;
}
.t-body { font-size: 0.88rem; color: var(--text); line-height: 1.8; }
.t-metrics {
    display: grid; grid-template-columns: repeat(3,1fr);
    gap: 6px; margin-bottom: 16px; padding: 14px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.t-metric { text-align: center; }
.t-val { font-size: 1rem; font-weight: 800; line-height: 1.2; }
.t-lbl { font-size: 0.65rem; color: var(--text-muted); margin-top: 2px; }
.t-author { display: flex; align-items: center; gap: 12px; }
.t-avatar {
    width: 42px; height: 42px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: 0.9rem; flex-shrink: 0;
}
.t-name { font-size: 0.88rem; font-weight: 700; }
.t-role { font-size: 0.73rem; color: var(--text-muted); margin-top: 2px; }

/* ================================================================
   FAQ / 折叠卡片
   ================================================================ */
.faq-section { margin: 48px 0; }
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-item {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
    transition: var(--transition); box-shadow: var(--shadow);
}
.faq-item:hover { border-color: var(--primary); }
.faq-question {
    padding: 18px 20px; display: flex; align-items: center; justify-content: space-between;
    gap: 12px; cursor: pointer; user-select: none;
    font-size: 0.95rem; font-weight: 700; line-height: 1.5;
    transition: color 0.2s;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
    font-size: 1.2rem; transition: transform 0.3s; flex-shrink: 0;
    color: var(--primary); font-weight: 700;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
    max-height: 0; overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-item.open .faq-answer {
    max-height: 400px;
}
.faq-answer-inner {
    padding: 0 20px 18px; font-size: 0.88rem;
    color: var(--text-muted); line-height: 1.8;
    border-top: 1px solid var(--border);
}

/* ================================================================
   SERVICE BLOCK CARDS
   ================================================================ */
.service-block-grid {
    display: grid; grid-template-columns: repeat(2,1fr);
    gap: 20px; margin: 32px 0 48px;
}
@media (max-width: 768px) { .service-block-grid { grid-template-columns: 1fr; } }
.service-block-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px 24px;
    box-shadow: var(--shadow); transition: var(--transition);
}
.service-block-card:hover {
    box-shadow: var(--shadow-hover); border-color: var(--primary);
    transform: translateY(-2px);
}
.service-block-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.service-block-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; }

/* ================================================================
   CASE CARDS (案例 / 优化案例)
   ================================================================ */
.case-grid {
    display: grid; grid-template-columns: repeat(3,1fr);
    gap: 20px; margin: 32px 0;
}
@media (max-width: 1024px) { .case-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 640px) { .case-grid { grid-template-columns: 1fr; } }
.case-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow); transition: var(--transition);
}
.case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.case-thumb {
    padding: 20px; display: flex; align-items: center; gap: 12px;
}
.case-thumb .thumb-icon {
    width: 48px; height: 48px; border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; color: #fff; font-weight: 700; flex-shrink: 0;
}
.case-thumb .thumb-info h4 { font-size: 1rem; font-weight: 700; margin-bottom: 2px; }
.case-thumb .thumb-info span { font-size: 0.78rem; color: var(--text-soft); }
.case-body { padding: 0 20px 16px; }
.case-body p { font-size: 0.83rem; color: var(--text-muted); line-height: 1.7; }
.case-metrics {
    display: grid; grid-template-columns: repeat(4,1fr);
    gap: 8px; padding: 14px 20px; background: var(--bg);
    border-top: 1px solid var(--border);
}
.case-metrics .cm-item { text-align: center; }
.case-metrics .cm-val { font-size: 1.1rem; font-weight: 800; line-height: 1.1; }
.case-metrics .cm-lbl { font-size: 0.65rem; color: var(--text-muted); margin-top: 3px; }

/* ================================================================
   COMPARE TABLE (优化前后对比)
   ================================================================ */
.compare-table {
    width: 100%; border-collapse: collapse; margin: 24px 0 40px;
    font-size: 0.9rem; border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow);
}
.compare-table thead { background: var(--primary); color: #fff; }
.compare-table th {
    padding: 14px 16px; text-align: left; font-weight: 700;
}
.compare-table td {
    padding: 12px 16px; border-bottom: 1px solid var(--border);
    background: var(--card);
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table .td-label { font-weight: 600; width: 180px; }
.compare-table .td-old { color: #EF4444; }
.compare-table .td-new { color: var(--success); font-weight: 600; }

/* ================================================================
   COMPANY PAGE (公司简介)
   ================================================================ */
.company-hero {
    display: grid; grid-template-columns: 1fr 380px;
    gap: 32px; margin: 32px 0 48px; align-items: start;
}
@media (max-width: 768px) { .company-hero { grid-template-columns: 1fr; } }
.company-story {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px 28px;
    box-shadow: var(--shadow);
}
.company-story h2 { font-size: 1.4rem; font-weight: 800; margin-bottom: 20px; }
.company-story h2 span { color: var(--primary); }
.company-story p {
    font-size: 0.93rem; color: var(--text-muted); line-height: 1.9; margin-bottom: 16px;
}
.company-sidebar {
    display: flex; flex-direction: column; gap: 16px;
}
.company-info-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 24px 20px;
    box-shadow: var(--shadow);
}
.company-info-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
.sb-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; }
.sb-item {
    display: flex; align-items: center; gap: 8px; padding: 10px 12px;
    border: 1px solid var(--border); border-radius: var(--radius);
    font-size: 0.82rem; font-weight: 600; transition: var(--transition);
}
.sb-item:hover { border-color: var(--primary); }
.sb-icon {
    width: 32px; height: 32px; border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 0.8rem; font-weight: 700; flex-shrink: 0;
}
.info-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 0; border-bottom: 1px solid var(--border);
}
.info-row:last-child { border-bottom: none; }
.info-row .lbl { font-size: 0.8rem; color: var(--text-muted); }
.info-row .val { font-size: 0.85rem; font-weight: 700; text-align: right; }
.highlight-row {
    margin-top: 12px; padding: 12px 16px; background: var(--primary-light);
    border-radius: var(--radius); display: flex; align-items: center;
    gap: 8px; font-size: 0.85rem; font-weight: 600; color: var(--primary);
}
.highlight, .highlight-row .highlight { font-weight: 800; color: var(--success); }

/* ================================================================
   MILESTONE TIMELINE (发展里程碑)
   ================================================================ */
.milestone-timeline {
    position: relative; margin: 40px 0 48px; padding-left: 40px;
}
.milestone-timeline::before {
    content: ''; position: absolute; left: 18px; top: 8px; bottom: 8px;
    width: 4px; background: linear-gradient(180deg, var(--primary), var(--success));
    border-radius: 2px;
}
.milestone-item {
    position: relative; margin-bottom: 28px; padding-left: 28px;
}
.milestone-item:last-child { margin-bottom: 0; }
.milestone-item::before {
    content: ''; position: absolute; left: -24px; top: 6px;
    width: 14px; height: 14px; background: var(--primary);
    border-radius: 50%; border: 3px solid var(--bg);
}
.mi-year {
    font-size: 0.8rem; font-weight: 800; color: var(--primary);
    letter-spacing: 0.5px; margin-bottom: 4px;
}
.mi-title { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.mi-desc { font-size: 0.83rem; color: var(--text-muted); line-height: 1.7; }

/* ================================================================
   TEAM GRID (团队展示)
   ================================================================ */
.team-grid {
    display: grid; grid-template-columns: repeat(4,1fr);
    gap: 16px; margin: 28px 0;
}
@media (max-width: 1024px) { .team-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 480px) { .team-grid { grid-template-columns: 1fr; } }
.team-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 24px 16px;
    text-align: center; box-shadow: var(--shadow); transition: var(--transition);
}
.team-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.tm-avatar {
    width: 72px; height: 72px; border-radius: 50%;
    margin: 0 auto 14px; display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 1.2rem; font-weight: 700;
}
.tm-desc { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.tm-role { font-size: 0.78rem; color: var(--text-muted); }

/* ================================================================
   SECTOR TAGS (行业标签)
   ================================================================ */
.sector-tags {
    display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0;
}
.sector-tag {
    padding: 8px 18px; border-radius: 50px; border: 1px solid var(--border);
    background: var(--card); font-size: 0.85rem; font-weight: 600;
    color: var(--text); transition: var(--transition);
    display: flex; align-items: center; gap: 6px;
}
.sector-tag:hover { border-color: var(--primary); background: var(--primary-light); color: var(--primary); }

/* ================================================================
   CTA BANNER
   ================================================================ */
.cta-banner {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff; padding: 48px 40px; border-radius: var(--radius-lg);
    text-align: center; margin: 48px 0;
    box-shadow: 0 20px 40px -10px rgba(37,99,235,0.3);
}
.cta-banner h2 { font-size: 1.6rem; font-weight: 800; margin-bottom: 12px; color: #fff; }
.cta-banner p { font-size: 1rem; opacity: 0.9; margin-bottom: 24px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-banner .btn-accent {
    background: #fff; color: var(--primary); padding: 14px 36px;
    border-radius: 50px; font-size: 1rem; font-weight: 700;
    text-decoration: none; display: inline-block; transition: var(--transition);
}
.cta-banner .btn-accent:hover { transform: scale(1.03); box-shadow: 0 8px 20px rgba(0,0,0,0.15); }
.btn-accent {
    background: var(--accent); color: #fff; padding: 12px 28px;
    border-radius: 50px; font-weight: 700; text-decoration: none;
    display: inline-block; transition: var(--transition);
}
.btn-accent:hover { transform: scale(1.03); opacity: 0.95; }

/* ================================================================
   GENERAL card-icon
   ================================================================ */
.card-icon {
    width: 52px; height: 52px; border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; margin-bottom: 16px;
}
.card-grid {
    display: grid; gap: 20px;
}