/* ===================================================================
 * 元序界官网 样式表
 * YuanXuJie Official Website Stylesheet
 * 设计：高端商务白（默认）+ 暗色夜间模式
 * 主题切换：<html data-theme="dark"> 由 main.js 控制
 * =================================================================== */

/* ---------- 设计令牌 · Light（默认） ---------- */
:root {
    /* 品牌主色 —— 沉稳商务蓝 */
    --c-primary: #1d4ed8;
    --c-primary-strong: #1e40af;
    --c-primary-soft: #eff4ff;
    --c-primary-on: #ffffff;

    /* 强调与次色 */
    --c-secondary: #1d4ed8;
    --c-accent: #1d4ed8;
    --c-success: #047857;
    --c-warning: #b45309;
    --c-danger:  #b91c1c;

    /* 中性背景 / 表面 */
    --c-bg:        #ffffff;
    --c-bg-2:      #f7f9fc;
    --c-bg-3:      #eef2f7;
    --c-surface:   #ffffff;
    --c-surface-2: #f7f9fc;
    --c-surface-hover: #f1f5f9;

    /* 边框 */
    --c-border:        #e5e7eb;
    --c-border-strong: #cbd5e1;
    --c-border-hover:  #1d4ed8;

    /* 文本 */
    --c-text:    #0f172a;   /* 标题 / 主文本 */
    --c-text-2:  #475569;   /* 次要文字 */
    --c-text-3:  #94a3b8;   /* 辅助 / 占位 */
    --c-text-on-primary: #ffffff;

    /* 兼容旧变量别名（HTML 内联样式引用） */
    --primary:        var(--c-primary);
    --secondary:      var(--c-primary);
    --accent:         var(--c-primary);
    --border:         var(--c-border);
    --border-hover:   var(--c-border-strong);
    --text-primary:   var(--c-text);
    --text-secondary: var(--c-text-2);
    --text-muted:     var(--c-text-3);

    /* "渐变" 全部退化为单色或极淡氛围 */
    --gradient-hero:   linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    --gradient-accent: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
    --gradient-card:   #ffffff;

    /* 阴影 */
    --shadow-xs:    0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-sm:    0 2px 6px rgba(15, 23, 42, 0.05);
    --shadow-md:    0 8px 24px rgba(15, 23, 42, 0.08);
    --shadow-lg:    0 16px 40px rgba(15, 23, 42, 0.10);
    --shadow-card:  0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.06);
    --shadow-glow:  0 0 0 4px rgba(29, 78, 216, 0.12);

    /* 形状 */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    /* 布局 */
    --container: 1200px;
    --container-narrow: 1040px;
    --nav-h: 68px;
    --easing: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 设计令牌 · Dark ---------- */
[data-theme="dark"] {
    --c-primary: #3b82f6;
    --c-primary-strong: #60a5fa;
    --c-primary-soft: rgba(59, 130, 246, 0.12);
    --c-primary-on: #ffffff;

    --c-secondary: #3b82f6;
    --c-accent:    #60a5fa;
    --c-success:   #10b981;
    --c-warning:   #f59e0b;
    --c-danger:    #f87171;

    --c-bg:        #0b0f17;
    --c-bg-2:      #0f1422;
    --c-bg-3:      #131a2c;
    --c-surface:   #131a2c;
    --c-surface-2: #182135;
    --c-surface-hover: #1d273e;

    --c-border:        #1f2937;
    --c-border-strong: #374151;
    --c-border-hover:  #3b82f6;

    --c-text:   #e5e7eb;
    --c-text-2: #9ca3af;
    --c-text-3: #6b7280;
    --c-text-on-primary: #ffffff;

    --gradient-hero:   linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    --gradient-accent: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    --gradient-card:   #131a2c;

    --shadow-xs:   0 1px 2px rgba(0, 0, 0, 0.30);
    --shadow-sm:   0 2px 6px rgba(0, 0, 0, 0.35);
    --shadow-md:   0 8px 24px rgba(0, 0, 0, 0.40);
    --shadow-lg:   0 16px 40px rgba(0, 0, 0, 0.50);
    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.30), 0 8px 24px rgba(0, 0, 0, 0.30);
    --shadow-glow: 0 0 0 4px rgba(59, 130, 246, 0.25);
}

/* ---------- Reset ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background: var(--c-bg);
    color: var(--c-text);
    line-height: 1.65;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color .25s var(--easing), color .25s var(--easing);
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color .2s var(--easing); }
a:hover { color: var(--c-primary-strong); }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; }

/* ---------- 通用布局 ---------- */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
}
.section { padding: 80px 0; position: relative; }
.section-sm { padding: 56px 0; }
.section + .section { padding-top: 0; }
.section-header { text-align: center; margin-bottom: 56px; max-width: 760px; margin-left: auto; margin-right: auto; }

.section-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--c-primary-soft);
    border-radius: 4px;
    color: var(--c-primary);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1.5px;
    margin-bottom: 16px;
    text-transform: uppercase;
}
.section-title {
    font-size: clamp(28px, 3.4vw, 38px);
    font-weight: 700;
    line-height: 1.25;
    color: var(--c-text);
    margin-bottom: 14px;
    letter-spacing: -0.5px;
}
.section-subtitle {
    font-size: 16px;
    color: var(--c-text-2);
    max-width: 720px;
    margin: 0 auto;
    line-height: 1.7;
}
.section-sub-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--c-text);
    margin: 32px 0 16px;
    padding-left: 12px;
    border-left: 3px solid var(--c-primary);
    letter-spacing: -0.2px;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 11px 24px;
    border-radius: var(--radius-sm);
    font-size: 14.5px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s var(--easing);
    border: 1px solid transparent;
    white-space: nowrap;
    line-height: 1.4;
    letter-spacing: 0.2px;
}
.btn-primary {
    background: var(--c-primary);
    color: var(--c-primary-on);
    box-shadow: var(--shadow-xs);
}
.btn-primary:hover {
    background: var(--c-primary-strong);
    color: var(--c-primary-on);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}
.btn-secondary {
    background: var(--c-surface);
    color: var(--c-text);
    border-color: var(--c-border-strong);
}
.btn-secondary:hover {
    border-color: var(--c-primary);
    color: var(--c-primary);
    background: var(--c-primary-soft);
}
.btn-ghost {
    background: transparent;
    color: var(--c-text-2);
    border-color: transparent;
}
.btn-ghost:hover { color: var(--c-primary); background: var(--c-primary-soft); }

/* ---------- 导航栏 ---------- */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-h);
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.85);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid transparent;
    z-index: 100;
    transition: background-color .25s var(--easing), border-color .25s var(--easing), box-shadow .25s var(--easing);
}
[data-theme="dark"] .navbar { background: rgba(11, 15, 23, 0.78); }
.navbar.scrolled {
    border-bottom-color: var(--c-border);
    box-shadow: var(--shadow-xs);
}
.nav-wrapper { display: flex; justify-content: space-between; align-items: center; width: 100%; gap: 16px; }

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: var(--c-text);
}
.logo:hover { color: var(--c-text); }
.logo-icon {
    width: 36px; height: 36px;
    background: url('images/logo.png') center/contain no-repeat;
    flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text span { font-size: 17px; letter-spacing: 0.5px; font-weight: 700; }
.logo-text small { font-size: 9.5px; color: var(--c-text-3); letter-spacing: 2.5px; text-transform: uppercase; margin-top: 2px; }

.nav-menu { display: flex; gap: 2px; align-items: center; }
.nav-menu > li { display: flex; align-items: center; }
.nav-menu a {
    color: var(--c-text-2);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 14.5px;
    font-weight: 500;
    transition: all .2s var(--easing);
    position: relative;
}
.nav-menu a:hover { color: var(--c-text); background: var(--c-surface-2); }
.nav-menu a.active {
    color: var(--c-primary);
    background: var(--c-primary-soft);
}

.nav-cta {
    padding: 9px 18px !important;
    background: var(--c-primary) !important;
    color: var(--c-primary-on) !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600;
    margin-left: 6px;
}
.nav-cta:hover { background: var(--c-primary-strong) !important; color: var(--c-primary-on) !important; transform: translateY(-1px); }

/* 主题切换按钮 */
.theme-toggle {
    width: 36px; height: 36px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--c-text-2);
    background: transparent;
    border: 1px solid var(--c-border);
    margin-left: 4px;
    transition: all .2s var(--easing);
    flex-shrink: 0;
}
.theme-toggle:hover {
    color: var(--c-primary);
    border-color: var(--c-primary);
    background: var(--c-primary-soft);
}
.theme-toggle svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.8; }
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun  { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

.nav-toggle {
    display: none;
    width: 38px; height: 38px;
    align-items: center; justify-content: center;
    font-size: 22px;
    color: var(--c-text);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
}

/* ---------- Hero ---------- */
.hero {
    min-height: calc(100vh - 60px);
    display: flex;
    align-items: center;
    padding: calc(var(--nav-h) + 60px) 0 60px;
    position: relative;
    overflow: hidden;
    background: var(--c-bg);
}
.hero::before {
    content: "";
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 800px 400px at 50% 0%, rgba(29, 78, 216, 0.05), transparent 70%);
    pointer-events: none;
}
[data-theme="dark"] .hero::before {
    background:
        radial-gradient(ellipse 800px 400px at 50% 0%, rgba(59, 130, 246, 0.10), transparent 70%);
}
/* 旧 orb 全部隐去 */
.hero-orb, .hero-orb-2 { display: none !important; }

/* ---------- Hero 动态背景 ---------- */
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
    color: var(--c-primary);   /* 所有 currentColor 取主题主色 */
}
.hero-bg-svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* 网格层 */
.hero-bg-grid { opacity: 0.07; }
[data-theme="dark"] .hero-bg-grid { opacity: 0.10; }

/* 网络连线 */
.hero-edges { opacity: 0.12; }
[data-theme="dark"] .hero-edges { opacity: 0.18; }

/* 节点呼吸光环 */
.hero-halo {
    transform-origin: center;
    transform-box: fill-box;
    animation: heroHaloPulse 3.6s ease-in-out infinite;
    will-change: opacity, r;
}
.hero-halo.h1 { animation-delay: -0.2s; }
.hero-halo.h2 { animation-delay: -1.4s; }
.hero-halo.h3 { animation-delay: -0.8s; }
.hero-halo.h4 { animation-delay: -2.4s; }
.hero-halo.h5 { animation-delay: -1.8s; }
.hero-halo.h6 { animation-delay: -3.0s; }
@keyframes heroHaloPulse {
    0%, 100% { r: 6;  opacity: 0; }
    50%      { r: 26; opacity: 1; }
}

/* 漂浮光晕（缓速漂移 + 微缩放） */
.hero-blob {
    transform-origin: center;
    transform-box: fill-box;
    will-change: transform;
}
.hero-blob.blob-a { animation: heroBlobA 26s ease-in-out infinite alternate; }
.hero-blob.blob-b { animation: heroBlobB 32s ease-in-out infinite alternate; animation-delay: -8s; }
.hero-blob.blob-c { animation: heroBlobC 22s ease-in-out infinite alternate; animation-delay: -4s; }
@keyframes heroBlobA {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(80px, 60px) scale(1.12); }
}
@keyframes heroBlobB {
    0%   { transform: translate(0, 0) scale(1.05); }
    100% { transform: translate(-90px, -50px) scale(0.95); }
}
@keyframes heroBlobC {
    0%   { transform: translate(0, 0) scale(0.95); }
    100% { transform: translate(60px, -70px) scale(1.10); }
}

/* 流动光带 —— 用 dashoffset 实现"沿曲线流动" */
.hero-beam {
    stroke-dasharray: 120 1900;
    stroke-dashoffset: 2020;
    will-change: stroke-dashoffset;
}
.hero-beam.beam-1 { animation: heroBeamFlow 9s linear infinite; }
.hero-beam.beam-2 { animation: heroBeamFlow 13s linear infinite; animation-delay: -5s; }
@keyframes heroBeamFlow {
    from { stroke-dashoffset: 2020; }
    to   { stroke-dashoffset: -100; }
}

/* 适配 reduced motion */
@media (prefers-reduced-motion: reduce) {
    .hero-blob, .hero-halo, .hero-beam { animation: none !important; }
    .hero-halo { opacity: 0.4; }
}

.hero-content { max-width: 880px; text-align: center; margin: 0 auto; position: relative; z-index: 1; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--c-primary-soft);
    border: 1px solid transparent;
    border-radius: 999px;
    color: var(--c-primary);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 28px;
}
.hero-badge .dot {
    width: 6px; height: 6px;
    background: var(--c-primary);
    border-radius: 50%;
}
.hero-title {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.18;
    margin-bottom: 24px;
    letter-spacing: -1.2px;
    color: var(--c-text);
}
.hero-title .highlight { color: var(--c-primary); }
.hero-subtitle {
    font-size: 17px;
    color: var(--c-text-2);
    margin: 0 auto 36px;
    line-height: 1.75;
    max-width: 760px;
}
.hero-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-buttons .btn { padding: 12px 28px; font-size: 15px; }

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 64px;
    max-width: 880px;
    margin-left: auto; margin-right: auto;
}
.metric {
    padding: 24px 16px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    text-align: center;
    transition: all .2s var(--easing);
}
.metric:hover {
    border-color: var(--c-border-strong);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}
.metric-num {
    font-size: 30px;
    font-weight: 700;
    color: var(--c-primary);
    margin-bottom: 4px;
    letter-spacing: -0.5px;
    line-height: 1.2;
}
.metric-label { color: var(--c-text-2); font-size: 13px; letter-spacing: 0.3px; }

/* ---------- 内页头部 Banner ---------- */
.page-banner {
    padding: calc(var(--nav-h) + 64px) 0 56px;
    text-align: center;
    position: relative;
    background: var(--c-bg-2);
    border-bottom: 1px solid var(--c-border);
}
.page-banner h1 {
    font-size: clamp(28px, 3.6vw, 40px);
    font-weight: 700;
    color: var(--c-text);
    margin-bottom: 12px;
    letter-spacing: -0.6px;
}
.page-banner p { color: var(--c-text-2); font-size: 16px; max-width: 720px; margin: 0 auto; }
.breadcrumb {
    margin-top: 18px;
    font-size: 13px;
    color: var(--c-text-3);
}
.breadcrumb a { color: var(--c-text-2); }
.breadcrumb a:hover { color: var(--c-primary); }
.breadcrumb span { margin: 0 8px; color: var(--c-text-3); }

/* ---------- 卡片网格通用 ---------- */
.grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    counter-reset: card-counter;
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
    padding: 28px 26px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    transition: all .2s var(--easing);
    position: relative;
    counter-increment: card-counter;
}
.card:hover {
    border-color: var(--c-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--c-text); letter-spacing: -0.2px; }
.card p { color: var(--c-text-2); font-size: 14.5px; line-height: 1.75; }

/* card-icon —— 几何符号统一替换为编号方块（用 CSS counter，符号本身被隐藏） */
.card-icon {
    width: 40px; height: 40px;
    border-radius: var(--radius-sm);
    background: var(--c-primary-soft);
    color: var(--c-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0; /* 隐藏掉 ◆◈◉◎ 这类几何符号 */
    font-weight: 700;
    margin-bottom: 18px;
    position: relative;
    overflow: hidden;
}
.card-icon::before {
    content: counter(card-counter, decimal-leading-zero);
    font-size: 14px;
    letter-spacing: 0.5px;
    color: var(--c-primary);
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 16px;
    color: var(--c-primary);
    font-size: 14px;
    font-weight: 600;
    transition: gap .2s var(--easing);
}
.card-link:hover { gap: 8px; color: var(--c-primary-strong); }

/* CTA 风格"高亮卡片"（用于"需要定制方案？"） */
.card[style*="gradient-hero"], .card[style*="--gradient-hero"] {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-strong) 100%) !important;
    border-color: transparent !important;
    color: #fff !important;
}
.card[style*="gradient-hero"] h3, .card[style*="--gradient-hero"] h3 { color: #fff !important; }
.card[style*="gradient-hero"] .card-icon, .card[style*="--gradient-hero"] .card-icon { background: rgba(255,255,255,0.18); }
.card[style*="gradient-hero"] .card-icon::before, .card[style*="--gradient-hero"] .card-icon::before { color: #fff; }
.card[style*="gradient-hero"] .card-link, .card[style*="--gradient-hero"] .card-link { color: #fff !important; }

/* ---------- Hero 页特征区 ---------- */
.feature-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

/* ---------- 服务对比表 ---------- */
.compare-wrap { overflow-x: auto; padding-top: 24px; }
.compare-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    overflow: visible;
    min-width: 900px;
}
.compare-table th:first-child { border-top-left-radius: var(--radius-md); }
.compare-table th:last-child  { border-top-right-radius: var(--radius-md); }
.compare-table tr:last-child td:first-child { border-bottom-left-radius: var(--radius-md); }
.compare-table tr:last-child td:last-child  { border-bottom-right-radius: var(--radius-md); }
.compare-table th, .compare-table td {
    padding: 14px 16px;
    text-align: center;
    border-bottom: 1px solid var(--c-border);
    font-size: 14px;
}
.compare-table th {
    background: var(--c-bg-2);
    color: var(--c-text);
    font-weight: 700;
    font-size: 14.5px;
    letter-spacing: 0.3px;
}
.compare-table th.recommended {
    background: var(--c-primary-soft);
    color: var(--c-primary);
    position: relative;
}
.compare-table th.recommended::before {
    content: "推荐";
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--c-primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 3px 10px;
    border-radius: 999px;
    white-space: nowrap;
    box-shadow: var(--shadow-xs);
    z-index: 5;
}
.compare-table td.recommended { background: var(--c-primary-soft); color: var(--c-text); }
.compare-table td.label { text-align: left; color: var(--c-text-2); font-weight: 500; }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table .yes,
.compare-table td.yes,
.compare-table td.recommended.yes { color: var(--c-success) !important; font-weight: 600; }
.compare-table .star,
.compare-table td.star,
.compare-table td.recommended.star { color: var(--c-primary) !important; font-weight: 600; }
.compare-table .no,
.compare-table td.no,
.compare-table td.recommended.no { color: var(--c-text-3) !important; font-weight: 500; }

/* ---------- FAQ ---------- */
.faq-category {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}
.faq-category a {
    padding: 7px 16px;
    border-radius: 999px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    color: var(--c-text-2);
    font-size: 13.5px;
    font-weight: 500;
    transition: all .2s var(--easing);
}
.faq-category a:hover { color: var(--c-primary); border-color: var(--c-primary); }
.faq-category a.active {
    background: var(--c-primary);
    color: #fff;
    border-color: var(--c-primary);
}

.faq-group {
    max-width: 920px;
    margin: 0 auto 32px;
    padding: 28px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
}
.faq-group-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-bottom: 18px;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--c-border);
}
.faq-group-icon {
    width: 40px; height: 40px;
    border-radius: var(--radius-sm);
    background: var(--c-primary-soft);
    color: var(--c-primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 0;       /* 屏蔽几何符号 */
    flex-shrink: 0;
    position: relative;
}
.faq-group-icon::before {
    content: "?";
    font-size: 18px;
    font-weight: 700;
}
.faq-group-title h3 { font-size: 18px; margin-bottom: 4px; color: var(--c-text); }
.faq-group-title p { font-size: 13px; color: var(--c-text-3); }

.faq-item {
    border-bottom: 1px solid var(--c-border);
    padding: 14px 0;
}
.faq-item:last-child { border-bottom: none; }
.faq-item summary {
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    padding: 6px 0;
    list-style: none;
    transition: color .2s var(--easing);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover .faq-q-text { color: var(--c-primary); }
.faq-q-badge {
    min-width: 36px;
    height: 26px;
    background: var(--c-primary-soft);
    color: var(--c-primary);
    font-size: 12px;
    font-weight: 700;
    border-radius: var(--radius-xs);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    letter-spacing: 0.5px;
}
.faq-q-text { flex: 1; font-size: 15px; font-weight: 500; color: var(--c-text); transition: color .2s var(--easing); }
.faq-toggle {
    width: 22px; height: 22px;
    position: relative;
    flex-shrink: 0;
    transition: transform .25s var(--easing);
}
.faq-toggle::before, .faq-toggle::after {
    content: "";
    position: absolute;
    background: var(--c-text-2);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
}
.faq-toggle::before { width: 12px; height: 1.6px; }
.faq-toggle::after  { width: 1.6px;  height: 12px; transition: transform .25s var(--easing); }
.faq-item[open] .faq-toggle::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-answer {
    padding: 14px 0 6px 50px;
    color: var(--c-text-2);
    line-height: 1.85;
    font-size: 14.5px;
}
.faq-answer p + p { margin-top: 10px; }
.faq-answer ul, .faq-answer ol { padding-left: 20px; margin: 10px 0; }
.faq-answer li { margin: 5px 0; }
.faq-answer b { color: var(--c-text); }

/* ---------- About / Team ---------- */
.about-intro {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 56px;
    align-items: center;
}
.about-intro h2 { font-size: 32px; line-height: 1.3; margin-bottom: 20px; color: var(--c-text); letter-spacing: -0.5px; }
.about-intro h2 span { color: var(--c-primary); }
.about-intro p { color: var(--c-text-2); font-size: 15px; line-height: 1.85; margin-bottom: 14px; }
.about-visual {
    display: flex; align-items: center; justify-content: center;
    aspect-ratio: 1 / 1;
    max-width: 420px;
    margin: 0 auto;
    position: relative;
}
/* 旧 tech-orb 改为简洁圆形 */
.tech-orb {
    width: 280px; height: 280px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-strong) 100%);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 24px 60px rgba(29, 78, 216, 0.20);
    position: relative;
}
[data-theme="dark"] .tech-orb { box-shadow: 0 24px 60px rgba(59, 130, 246, 0.30); }
.tech-orb::before {
    content: "";
    position: absolute;
    inset: -20px;
    border: 1px dashed var(--c-border-strong);
    border-radius: 50%;
}
.tech-orb::after {
    content: "";
    position: absolute;
    inset: -50px;
    border: 1px dashed var(--c-border);
    border-radius: 50%;
    opacity: 0.7;
}
.tech-orb img { width: 55%; height: 55%; object-fit: contain; filter: brightness(0) invert(1); }

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}
.team-card {
    padding: 28px 22px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    text-align: center;
    transition: all .2s var(--easing);
}
.team-card:hover {
    border-color: var(--c-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.team-avatar {
    width: 80px; height: 80px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: var(--c-primary);
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 26px;
    font-weight: 700;
}
.team-card h4 { font-size: 17px; margin-bottom: 4px; color: var(--c-text); }
.team-role { color: var(--c-primary); font-size: 13px; margin-bottom: 12px; letter-spacing: 0.3px; font-weight: 500; }
.team-bio { color: var(--c-text-2); font-size: 13.5px; line-height: 1.75; }

/* ---------- Timeline ---------- */
.timeline {
    max-width: 760px;
    margin: 0 auto;
    position: relative;
    padding: 16px 0;
}
.timeline::before {
    content: "";
    position: absolute;
    left: 28px; top: 0; bottom: 0;
    width: 2px;
    background: var(--c-border);
}
.timeline-item {
    position: relative;
    padding: 0 0 32px 70px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
    content: "";
    position: absolute;
    left: 22px; top: 4px;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--c-bg);
    border: 3px solid var(--c-primary);
    box-shadow: 0 0 0 3px var(--c-bg);
}
.timeline-date { color: var(--c-primary); font-weight: 700; margin-bottom: 4px; font-size: 13.5px; letter-spacing: 0.5px; }
.timeline-title { font-size: 16px; margin-bottom: 6px; color: var(--c-text); }
.timeline-desc { color: var(--c-text-2); font-size: 14px; line-height: 1.8; }

/* ---------- Case 卡片 ---------- */
.case-filters,
.news-filters {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.case-filter,
.news-filter {
    padding: 7px 16px;
    border-radius: 999px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    color: var(--c-text-2);
    font-size: 13.5px;
    font-weight: 500;
    cursor: pointer;
    transition: all .2s var(--easing);
}
.case-filter:hover,
.news-filter:hover { color: var(--c-primary); border-color: var(--c-primary); }
.case-filter.active,
.news-filter.active {
    background: var(--c-primary);
    color: #fff;
    border-color: var(--c-primary);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}
.case-card {
    display: flex;
    flex-direction: column;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all .2s var(--easing);
    color: var(--c-text);
}
.case-card:hover {
    border-color: var(--c-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    color: var(--c-text);
}
.case-cover {
    aspect-ratio: 16 / 9;
    position: relative;
    overflow: hidden;
    background: #0a0e1a; /* SVG 内嵌深底，保持 cover 效果 */
}
.case-cover svg.case-svg {
    width: 100%; height: 100%; display: block;
    position: relative; z-index: 1;
}
.case-cover-icon { display: none; }
.case-badge {
    position: absolute;
    top: 12px; left: 12px;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--c-primary);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-xs);
    z-index: 3;
    backdrop-filter: blur(4px);
}
.case-body {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.case-industry {
    color: var(--c-primary);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    text-transform: uppercase;
}
.case-title {
    font-size: 17px;
    margin-bottom: 10px;
    color: var(--c-text);
    line-height: 1.45;
    font-weight: 700;
}
.case-card:hover .case-title { color: var(--c-primary); }
.case-desc {
    color: var(--c-text-2);
    font-size: 13.5px;
    line-height: 1.7;
    margin-bottom: 18px;
    flex: 1;
}
.case-metrics {
    display: flex;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--c-border);
}
.case-metric { text-align: center; flex: 1; }
.case-metric-num {
    font-size: 18px;
    font-weight: 700;
    color: var(--c-primary);
    margin-bottom: 2px;
    letter-spacing: -0.3px;
}
.case-metric-label { font-size: 11px; color: var(--c-text-3); }

/* ---------- News 卡片 ---------- */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 0;
}
.news-card,
.news-grid .news-card {
    display: flex;
    flex-direction: column;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all .2s var(--easing);
    text-decoration: none;
    color: var(--c-text);
}
.news-card:hover,
.news-grid .news-card:hover {
    border-color: var(--c-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.news-image,
.news-grid .news-image {
    aspect-ratio: 16 / 9;
    position: relative;
    overflow: hidden;
    background: #0f1422;
}
.news-image::before { display: none; }
.news-image .news-svg,
.news-grid .news-image .news-svg {
    width: 100%; height: 100%;
    display: block;
    position: relative;
    z-index: 1;
}
.news-image-placeholder {
    color: var(--c-text-3);
    font-size: 36px;
    position: relative;
    z-index: 1;
}
.news-body,
.news-grid .news-body { padding: 22px; flex: 1; }
.news-meta,
.news-grid .news-meta {
    display: flex; gap: 14px;
    font-size: 12.5px;
    color: var(--c-text-3);
    margin-bottom: 10px;
    align-items: center;
    flex-wrap: wrap;
}
.news-meta .tag,
.news-meta .news-category,
.news-grid .news-meta .news-category {
    color: var(--c-primary);
    font-weight: 600;
    letter-spacing: 0.3px;
}
.news-date { color: var(--c-text-3); }
.news-tag {
    display: inline-block;
    padding: 2px 8px;
    background: var(--c-primary-soft);
    color: var(--c-primary);
    border-radius: var(--radius-xs);
    font-size: 11px;
    font-weight: 500;
}
.news-title,
.news-grid .news-title {
    font-size: 17px;
    margin-bottom: 10px;
    line-height: 1.45;
    color: var(--c-text);
    font-weight: 700;
}
.news-body h3 a { color: var(--c-text); }
.news-body h3 a:hover,
.news-card:hover .news-title,
.news-grid .news-card:hover .news-title { color: var(--c-primary); }
.news-excerpt,
.news-grid .news-excerpt {
    color: var(--c-text-2);
    font-size: 13.5px;
    line-height: 1.75;
}
.news-body p { color: var(--c-text-2); font-size: 14px; line-height: 1.75; }

/* ---------- 文章详情 ---------- */
.article-layout-wrap { background: var(--c-bg); }
.article-layout {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: 56px;
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: calc(var(--nav-h) + 32px) 24px 80px;
}
.article-main { min-width: 0; }
.article-head { margin-bottom: 28px; padding-bottom: 24px; border-bottom: 1px solid var(--c-border); }
.article-head .breadcrumb { margin: 0 0 16px; }
.article-head h1 {
    font-size: clamp(24px, 3vw, 34px);
    line-height: 1.3;
    color: var(--c-text);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    font-weight: 700;
}
.article-head .article-meta {
    color: var(--c-text-3);
    font-size: 13.5px;
}
.article-head .article-meta span:not(:last-child)::after {
    content: "·";
    margin: 0 8px;
    color: var(--c-text-3);
}
.article-cover {
    margin: 0 0 28px;
    aspect-ratio: 16 / 7;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: #0f1422;
}
.article-cover svg { width: 100%; height: 100%; display: block; }

.article {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 24px;
}
.article-header { text-align: center; margin-bottom: 48px; padding-bottom: 28px; border-bottom: 1px solid var(--c-border); }
.article-header h1 { font-size: 28px; margin-bottom: 16px; line-height: 1.3; }
.article-meta { color: var(--c-text-3); font-size: 13.5px; }
.article-meta span { margin: 0 8px; }

.article-body { color: var(--c-text); font-size: 15.5px; line-height: 1.85; }
.article-body p { margin-bottom: 16px; color: var(--c-text); }
.article-body h2 {
    font-size: 22px;
    margin: 36px 0 14px;
    color: var(--c-text);
    padding-left: 12px;
    border-left: 3px solid var(--c-primary);
    font-weight: 700;
}
.article-body h3 { font-size: 18px; margin: 24px 0 10px; color: var(--c-text); font-weight: 700; }
.article-body ul, .article-body ol { padding-left: 22px; margin-bottom: 16px; color: var(--c-text-2); }
.article-body ul li, .article-body ol li { margin: 6px 0; }
.article-body ol li { list-style: decimal; }
.article-body b, .article-body strong { color: var(--c-text); font-weight: 700; }
.article-body blockquote {
    margin: 28px 0;
    padding: 16px 22px;
    background: var(--c-bg-2);
    border-left: 3px solid var(--c-primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--c-text);
    font-style: italic;
}
.article-body hr { border: none; height: 1px; background: var(--c-border); margin: 28px 0; }

/* 文章右侧 TOC */
.article-toc {
    position: sticky;
    top: calc(var(--nav-h) + 24px);
    align-self: start;
    max-height: calc(100vh - var(--nav-h) - 48px);
    overflow-y: auto;
    padding: 18px 18px 18px 14px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
}
.article-toc-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--c-text-2);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    padding-left: 4px;
}
.article-toc ul { list-style: none; margin: 0; padding: 0; }
.article-toc li { margin: 0; padding: 0; list-style: none; }
.article-toc a {
    display: block;
    padding: 6px 0 6px 12px;
    color: var(--c-text-2);
    font-size: 13.5px;
    border-left: 2px solid transparent;
    transition: all .2s var(--easing);
    line-height: 1.5;
}
.article-toc a:hover { color: var(--c-text); border-left-color: var(--c-primary); padding-left: 14px; }
.article-toc a.active {
    color: var(--c-primary);
    border-left-color: var(--c-primary);
    font-weight: 600;
}
.article-toc .toc-lv3 { padding-left: 24px; font-size: 13px; }
.article-toc .toc-lv3:hover, .article-toc .toc-lv3.active { padding-left: 26px; }

.article-footer {
    margin-top: 40px;
    padding: 24px;
    background: var(--c-bg-2);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    text-align: center;
}
.article-footer h4 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--c-text); }
.article-footer p { color: var(--c-text-2); font-size: 14px; margin-bottom: 16px; }

/* ---------- Contact form ---------- */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 40px;
    align-items: start;
}
.contact-info {
    padding: 32px 28px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
}
.contact-info h3 { font-size: 19px; font-weight: 700; margin-bottom: 22px; color: var(--c-text); }
.contact-info ul li {
    display: flex;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px dashed var(--c-border);
    color: var(--c-text-2);
    font-size: 13.5px;
    line-height: 1.7;
}
.contact-info ul li:last-child { border-bottom: none; }
.contact-info .ico {
    width: 32px; height: 32px;
    flex-shrink: 0;
    border-radius: var(--radius-xs);
    background: var(--c-primary-soft);
    color: var(--c-primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 0;
    position: relative;
}
.contact-info .ico::before {
    content: "";
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--c-primary);
}
.contact-info strong { color: var(--c-text); display: block; font-size: 14px; margin-bottom: 2px; font-weight: 600; }

.contact-form {
    padding: 32px 28px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
}
.contact-form h3 { font-size: 19px; font-weight: 700; margin-bottom: 22px; color: var(--c-text); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { margin-bottom: 16px; }
.form-field label { display: block; margin-bottom: 6px; color: var(--c-text-2); font-size: 13px; font-weight: 500; }
.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    color: var(--c-text);
    font-size: 14px;
    transition: all .2s var(--easing);
}
.form-field textarea { min-height: 110px; resize: vertical; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: var(--shadow-glow);
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--c-text-3); }

/* ---------- Footer ---------- */
.footer {
    background: var(--c-bg-2);
    border-top: 1px solid var(--c-border);
    padding: 56px 0 28px;
    margin-top: 80px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.4fr;
    gap: 40px;
    margin-bottom: 36px;
}
.footer-col h4 { font-size: 14px; margin-bottom: 16px; color: var(--c-text); letter-spacing: 0.3px; font-weight: 700; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: var(--c-text-2); font-size: 13.5px; }
.footer-col ul li a:hover { color: var(--c-primary); }
.footer-about p { color: var(--c-text-2); font-size: 13.5px; margin-top: 14px; line-height: 1.75; }
.footer-social { display: flex; gap: 8px; margin-top: 18px; }
.footer-social a {
    width: 34px; height: 34px;
    border: 1px solid var(--c-border);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--c-text-2);
    font-size: 13px;
    transition: all .2s var(--easing);
    background: var(--c-surface);
}
.footer-social a:hover {
    background: var(--c-primary);
    color: #fff;
    border-color: var(--c-primary);
}
.footer-contact li {
    display: flex;
    gap: 10px;
    color: var(--c-text-2);
    font-size: 13px;
    line-height: 1.65;
    border-bottom: none !important;
    padding: 5px 0 !important;
}
.footer-contact .ico {
    color: var(--c-primary);
    flex-shrink: 0;
    width: 16px;
    font-size: 0;
    position: relative;
    height: 16px;
    margin-top: 3px;
}
.footer-contact .ico::before {
    content: "";
    position: absolute; inset: 4px;
    border-radius: 50%;
    background: var(--c-primary);
}
.footer-bottom {
    padding-top: 22px;
    border-top: 1px solid var(--c-border);
    text-align: center;
    color: var(--c-text-3);
    font-size: 12.5px;
}
.footer-bottom a { color: var(--c-text-3); }
.footer-bottom a:hover { color: var(--c-primary); }

/* ---------- CTA box ---------- */
.cta { padding: 72px 0; }
.cta-box {
    max-width: 920px;
    margin: 0 auto;
    padding: 56px 40px;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-strong) 100%);
    border-radius: var(--radius-lg);
    text-align: center;
    color: #fff;
    box-shadow: 0 20px 60px rgba(29, 78, 216, 0.18);
}
[data-theme="dark"] .cta-box { box-shadow: 0 20px 60px rgba(0, 0, 0, 0.40); }
.cta-box h2 { font-size: clamp(24px, 3vw, 30px); font-weight: 700; margin-bottom: 12px; letter-spacing: -0.3px; color: #fff; }
.cta-box p { color: rgba(255,255,255,0.88); font-size: 15.5px; margin-bottom: 28px; max-width: 620px; margin-left: auto; margin-right: auto; line-height: 1.7; }
.cta-box .btn-primary {
    background: #fff; color: var(--c-primary); border-color: #fff;
}
.cta-box .btn-primary:hover { background: #f8fafc; color: var(--c-primary); }
.cta-box .btn-secondary { background: transparent; color: #fff; border-color: rgba(255,255,255,0.45); }
.cta-box .btn-secondary:hover { background: rgba(255,255,255,0.10); color: #fff; border-color: #fff; }
.cta-buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- Back to top ---------- */
.back-to-top {
    position: fixed;
    bottom: 24px; right: 24px;
    width: 42px; height: 42px;
    border-radius: 50%;
    background: var(--c-primary);
    color: #fff;
    font-size: 18px;
    display: flex; align-items: center; justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: all .25s var(--easing);
    z-index: 50;
    box-shadow: var(--shadow-md);
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { transform: translateY(-2px); background: var(--c-primary-strong); }

/* ---------- Solutions Tab ---------- */
.solution-tabs { padding-top: 12px; }
.solution-nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 8px;
    margin-bottom: 36px;
    padding: 8px;
    background: var(--c-bg-2);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
}
.solution-nav-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 14px;
    border-radius: var(--radius-sm);
    color: var(--c-text-2);
    font-size: 13.5px;
    font-weight: 500;
    cursor: pointer;
    transition: all .2s var(--easing);
    border: 1px solid transparent;
    text-align: center;
}
.solution-nav-item:hover { background: var(--c-surface); color: var(--c-text); }
.solution-nav-item.active {
    background: var(--c-primary);
    color: #fff;
    border-color: var(--c-primary);
}
.solution-nav-item .ico { font-size: 16px; color: inherit; }
.solution-nav-item .icon,
.solution-nav-item > .icon {
    width: 18px; height: 18px;
    display: inline-flex; align-items: center; justify-content: center;
    color: var(--c-primary);
    flex-shrink: 0;
}
.solution-nav-item .icon svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.solution-nav-item.active .icon { color: #fff; }
.solution-nav-item:hover .icon { color: var(--c-primary); }

.solution-content {
    display: none;
    padding: 8px 0;
}
.solution-content.active { display: block; animation: fadeIn .35s ease; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: none; }
}
.solution-content h3 {
    font-size: clamp(22px, 2.6vw, 28px);
    font-weight: 700;
    color: var(--c-text);
    margin-bottom: 14px;
    letter-spacing: -0.3px;
}
.solution-content > p { color: var(--c-text-2); line-height: 1.85; margin-bottom: 22px; font-size: 15px; }
.solution-content .btn { margin-top: 20px; }
.solution-content .btn + .btn { margin-left: 10px; }

.solution-hero {
    margin: 28px 0 32px;
    aspect-ratio: 4 / 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--c-border);
    background: #0a0e1a;
}
.solution-hero svg { width: 100%; height: 100%; display: block; }

/* Pain points (4 列) */
.pain-points {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin: 18px 0 28px;
}
@media (max-width: 1100px) { .pain-points { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .pain-points { grid-template-columns: 1fr; } }
.pain-point {
    padding: 18px 16px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    transition: all .2s var(--easing);
}
.pain-point:hover { border-color: var(--c-primary); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.pain-point svg.icon,
.pain-point .icon {
    width: 22px; height: 22px;
    color: var(--c-primary);
    margin-bottom: 10px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.pain-point b {
    display: block;
    font-size: 14px;
    margin-bottom: 4px;
    color: var(--c-text);
    font-weight: 700;
}
.pain-point p { font-size: 13px; color: var(--c-text-2); line-height: 1.65; margin: 0; }

/* solution points */
.solution-points { display: grid; gap: 14px; margin: 20px 0; }
.solution-point {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 14px;
    padding: 18px 20px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    align-items: start;
    transition: all .2s var(--easing);
}
.solution-point:hover { border-color: var(--c-primary); }
.solution-point-num {
    width: 40px; height: 40px;
    border-radius: var(--radius-sm);
    background: var(--c-primary-soft);
    color: var(--c-primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}
.solution-point h5 { font-size: 15px; margin-bottom: 4px; color: var(--c-text); font-weight: 700; }
.solution-point p { font-size: 13.5px; color: var(--c-text-2); line-height: 1.7; margin: 0; }

/* target clients */
.target-clients {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
    margin: 18px 0 28px;
}
.target-client {
    padding: 18px 16px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    transition: all .2s var(--easing);
}
.target-client:hover { border-color: var(--c-primary); transform: translateY(-2px); }
.target-client .tc-ico {
    width: 32px; height: 32px;
    border-radius: var(--radius-xs);
    background: var(--c-primary-soft);
    color: var(--c-primary);
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 0;
    margin-bottom: 10px;
    position: relative;
}
.target-client .tc-ico::before {
    content: "";
    width: 14px; height: 14px;
    border: 2px solid var(--c-primary);
    border-radius: 50%;
}
.target-client h6 { font-size: 14.5px; margin-bottom: 4px; color: var(--c-text); font-weight: 700; }
.target-client p { font-size: 13px; color: var(--c-text-2); line-height: 1.6; margin: 0; }

/* prompt samples */
.prompt-samples { display: grid; gap: 10px; margin: 14px 0 24px; }
.prompt-sample {
    padding: 14px 16px;
    background: var(--c-bg-2);
    border: 1px solid var(--c-border);
    border-left: 3px solid var(--c-primary);
    border-radius: var(--radius-sm);
    color: var(--c-text);
    font-size: 13.5px;
    line-height: 1.65;
}
.ps-tag {
    display: inline-block;
    padding: 2px 8px;
    background: var(--c-primary-soft);
    color: var(--c-primary);
    border-radius: var(--radius-xs);
    font-size: 11px;
    font-weight: 600;
    margin-right: 8px;
    letter-spacing: 0.3px;
}

/* deliverables */
.deliverable-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
    margin: 18px 0 28px;
}
.deliverable-item {
    padding: 18px 16px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    transition: all .2s var(--easing);
}
.deliverable-item:hover { border-color: var(--c-primary); transform: translateY(-2px); }
.dl-ico {
    width: 32px; height: 32px;
    border-radius: var(--radius-xs);
    background: var(--c-primary-soft);
    color: var(--c-primary);
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 0;
    margin-bottom: 10px;
    position: relative;
}
.dl-ico::before {
    content: "";
    width: 12px; height: 12px;
    background: var(--c-primary);
    transform: rotate(45deg);
}
.deliverable-item h6 { font-size: 14.5px; margin-bottom: 4px; color: var(--c-text); font-weight: 700; }
.deliverable-item p { font-size: 13px; color: var(--c-text-2); line-height: 1.6; margin: 0; }

/* solution-meta (统计数字) */
.solution-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
    padding: 24px;
    background: var(--c-bg-2);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    margin: 24px 0;
}
.solution-meta-item { text-align: center; }
.solution-meta-item .num {
    font-size: 26px;
    font-weight: 700;
    color: var(--c-primary);
    margin-bottom: 4px;
    letter-spacing: -0.5px;
    line-height: 1.2;
}
.solution-meta-item .label { font-size: 12px; color: var(--c-text-3); letter-spacing: 0.5px; }

/* mini-flow */
.mini-flow {
    display: flex;
    gap: 8px;
    align-items: stretch;
    margin: 18px 0 28px;
    flex-wrap: wrap;
}
.mini-flow-step {
    flex: 1 1 140px;
    padding: 14px 14px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    transition: all .2s var(--easing);
    min-width: 140px;
}
.mini-flow-step:hover { border-color: var(--c-primary); transform: translateY(-2px); }
.mini-flow-step .step-num {
    width: 26px; height: 26px;
    border-radius: var(--radius-xs);
    background: var(--c-primary);
    color: #fff;
    display: inline-flex;
    align-items: center; justify-content: center;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 8px;
}
.mini-flow-step strong {
    display: block;
    font-size: 13.5px;
    color: var(--c-text);
    margin-bottom: 2px;
    font-weight: 700;
}
.mini-flow-step small {
    display: block;
    font-size: 12px;
    color: var(--c-text-3);
    line-height: 1.55;
}
.mini-flow .arrow {
    align-self: center;
    color: var(--c-text-3);
    font-size: 16px;
    flex: 0 0 auto;
}

/* ---------- Resources ---------- */
.resource-card {
    padding: 24px 22px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    transition: all .2s var(--easing);
    display: flex;
    flex-direction: column;
    height: 100%;
}
.resource-card:hover {
    border-color: var(--c-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.resource-type {
    display: inline-block;
    padding: 3px 10px;
    background: var(--c-primary-soft);
    color: var(--c-primary);
    border-radius: var(--radius-xs);
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0.3px;
    margin-bottom: 14px;
    align-self: flex-start;
}
.resource-card h4 { font-size: 16px; line-height: 1.5; margin-bottom: 10px; color: var(--c-text); font-weight: 700; }
.resource-card p { color: var(--c-text-2); font-size: 13.5px; line-height: 1.7; flex: 1; }
.resource-meta {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--c-border);
    color: var(--c-text-3);
    font-size: 12px;
    display: flex;
    justify-content: space-between;
}

/* ---------- Flow diagram ---------- */
.flow {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}
.flow-step {
    text-align: center;
    padding: 24px 18px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    transition: all .2s var(--easing);
}
.flow-step:hover { border-color: var(--c-primary); transform: translateY(-2px); }
.flow-num {
    width: 40px; height: 40px;
    margin: 0 auto 14px;
    border-radius: 50%;
    background: var(--c-primary);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
    font-weight: 700;
}
.flow-step h5 { font-size: 14.5px; margin-bottom: 6px; color: var(--c-text); font-weight: 700; }
.flow-step p { font-size: 13px; color: var(--c-text-2); line-height: 1.6; }

/* ---------- Pricing 卡片增强 ---------- */
.pricing-card { position: relative; }
.pricing-recommended {
    position: relative;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-strong) 100%) !important;
    border-color: transparent !important;
    color: #fff !important;
    box-shadow: 0 12px 40px rgba(29, 78, 216, 0.20);
}
.pricing-recommended::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, #60a5fa, #1d4ed8);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.pricing-recommended h3,
.pricing-recommended p,
.pricing-recommended p b,
.pricing-recommended .pricing-meta,
.pricing-recommended .pricing-meta b,
.pricing-recommended .card-link { color: #fff !important; }
.pricing-recommended .card-icon { background: rgba(255,255,255,0.18); }
.pricing-recommended .card-icon::before { color: #fff; }
.pricing-recommended .card-link:hover { color: #fff !important; opacity: 0.85; }

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 14px;
    background: var(--c-primary-strong);
    color: #fff;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: 1px;
    border-radius: 999px;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}
.pricing-meta {
    color: var(--c-text-2);
    font-size: 13px;
    margin-top: 8px;
}
.pricing-meta + .pricing-meta { margin-top: 4px; }
.pricing-basic { background: var(--c-surface); }
.pricing-basic h3,
.pricing-basic p,
.pricing-basic .pricing-meta,
.pricing-basic .pricing-meta b,
.pricing-basic .card-link { color: var(--c-text); }
.pricing-basic .pricing-meta { color: var(--c-text-2); }
.pricing-basic .card-link { color: var(--c-primary); }

/* ---------- Subscribe ---------- */
.subscribe-box {
    max-width: 760px;
    margin: 0 auto;
    padding: 48px 36px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    text-align: center;
}
.subscribe-eyebrow {
    display: inline-block;
    padding: 4px 12px;
    background: var(--c-primary-soft);
    color: var(--c-primary);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 14px;
}
.subscribe-box h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--c-text);
    margin-bottom: 10px;
    letter-spacing: -0.3px;
}
.subscribe-box p {
    color: var(--c-text-2);
    font-size: 14.5px;
    margin-bottom: 24px;
    line-height: 1.7;
}
.subscribe-form {
    display: flex;
    gap: 8px;
    max-width: 480px;
    margin: 0 auto;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    padding: 4px;
    transition: border-color .2s var(--easing), box-shadow .2s var(--easing);
}
.subscribe-form:focus-within {
    border-color: var(--c-primary);
    box-shadow: var(--shadow-glow);
}
.subscribe-input {
    flex: 1;
    padding: 10px 12px;
    background: transparent;
    border: none;
    color: var(--c-text);
    font-size: 14px;
    outline: none;
}
.subscribe-input::placeholder { color: var(--c-text-3); }
.subscribe-btn {
    padding: 9px 20px;
    background: var(--c-primary);
    color: #fff;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s var(--easing);
    border: none;
}
.subscribe-btn:hover { background: var(--c-primary-strong); }
.subscribe-note { color: var(--c-text-3); font-size: 12px; margin-top: 14px; margin-bottom: 0; }

/* ---------- Testimonials ---------- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 40px;
}
.testimonial-card {
    padding: 26px 22px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    transition: all .2s var(--easing);
}
.testimonial-card:hover { border-color: var(--c-primary); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.testimonial-quote {
    color: var(--c-text);
    font-size: 14px;
    line-height: 1.75;
    margin-bottom: 18px;
    quotes: """ """;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 14px;
    border-top: 1px solid var(--c-border);
}
.testimonial-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--c-primary);
    color: #fff;
    display: flex;
    align-items: center; justify-content: center;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}
.testimonial-author strong { display: block; font-size: 13px; color: var(--c-text); font-weight: 700; }
.testimonial-author span { font-size: 11.5px; color: var(--c-text-3); letter-spacing: 0.3px; }

/* ---------- Pagination ---------- */
.pagination { display: flex; justify-content: center; gap: 6px; margin-top: 56px; }
.pagination a {
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    display: inline-flex;
    align-items: center; justify-content: center;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    color: var(--c-text-2);
    font-size: 13.5px;
    background: var(--c-surface);
    transition: all .2s var(--easing);
}
.pagination a:hover { border-color: var(--c-primary); color: var(--c-primary); }
.pagination a.active {
    background: var(--c-primary);
    color: #fff;
    border-color: var(--c-primary);
}

/* ---------- 行内提示 / 隐私声明等内联块（cases.html 中） ---------- */
.section > .container > div[style*="linear-gradient"] {
    background: var(--c-bg-2) !important;
    border: 1px solid var(--c-border) !important;
    color: var(--c-text-2) !important;
}
.section > .container > div[style*="linear-gradient"] b {
    color: var(--c-primary) !important;
}

/* ---------- 兼容旧页 inline style 中 padding-left + border-left 的小标题 ---------- */
[style*="border-left: 3px solid var(--c-primary)"],
[style*="border-left: 3px solid var(--primary)"],
[style*="border-left: 3px solid var(--c-accent)"],
[style*="border-left: 3px solid var(--accent)"] {
    border-left-color: var(--c-primary) !important;
}

/* article-body 中作为 callout 的 div */
[style*="border-left: 3px solid var(--c-accent)"][style*="background"] {
    background: var(--c-bg-2) !important;
    color: var(--c-text) !important;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .about-intro { grid-template-columns: 1fr; gap: 36px; text-align: center; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
    .article-layout { grid-template-columns: 1fr; gap: 28px; padding: calc(var(--nav-h) + 24px) 20px 60px; }
    .article-toc { display: none; }
}

@media (max-width: 768px) {
    :root { --nav-h: 60px; }
    .nav-menu {
        position: fixed;
        top: var(--nav-h);
        left: 0; right: 0;
        flex-direction: column;
        background: var(--c-bg);
        padding: 14px 18px;
        gap: 4px;
        border-bottom: 1px solid var(--c-border);
        box-shadow: var(--shadow-md);
        max-height: 0;
        overflow: hidden;
        transition: max-height .3s var(--easing);
    }
    .nav-menu.open { max-height: calc(100vh - var(--nav-h)); padding-bottom: 22px; }
    .nav-menu li { width: 100%; }
    .nav-menu a { width: 100%; padding: 12px 14px; }
    .nav-toggle { display: inline-flex; }
    .theme-toggle { width: 34px; height: 34px; }

    .hero { padding: calc(var(--nav-h) + 36px) 0 48px; min-height: auto; }
    .hero-title { font-size: 30px; letter-spacing: -0.6px; }
    .hero-metrics { grid-template-columns: repeat(2, 1fr); margin-top: 36px; }
    .section { padding: 56px 0; }
    .section-header { margin-bottom: 36px; }
    .section-title { font-size: 24px; }
    .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .compare-table { min-width: 720px; }
    .contact-layout { grid-template-columns: 1fr; gap: 24px; }
    .case-metrics { gap: 8px; }
    .cta-box { padding: 36px 22px; }
    .subscribe-box { padding: 32px 20px; }
    .subscribe-form { flex-direction: column; padding: 8px; }
    .subscribe-input { text-align: center; padding: 12px 14px; }
    .subscribe-btn { width: 100%; padding: 12px !important; }
    .article-head h1 { font-size: 22px; }
    .solution-nav { grid-template-columns: repeat(2, 1fr); }
    .mini-flow .arrow { display: none; }
}

/* ---------- 打印 ---------- */
@media print {
    .navbar, .back-to-top, .footer-social, .theme-toggle { display: none !important; }
    body { background: #fff !important; color: #000 !important; }
}

/* ===================================================================
 * yxj-geo 主题包追加样式（M1）
 * 为 yxjcms 主题包新增的组件类
 * =================================================================== */

/* ---------- skip link / 无障碍 ---------- */
.skip-link {
    position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden;
    background: var(--c-primary); color: var(--c-primary-on); padding: 8px 14px; border-radius: 4px;
    z-index: 99999;
}
.skip-link:focus { left: 16px; top: 16px; width: auto; height: auto; }

/* ---------- 多行 Hero 副标题（支持 \n 换行） ---------- */
.hero-subtitle--multiline { white-space: pre-line; }

/* ---------- 问 AI 按钮（多入口 CTA） ---------- */
.btn-ai {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 12px 22px;
    background: var(--c-primary-soft);
    color: var(--c-primary);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: 14.5px; font-weight: 600;
    cursor: pointer;
    transition: all 0.2s var(--easing);
    text-decoration: none;
}
.btn-ai:hover {
    background: var(--c-primary);
    color: var(--c-primary-on);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}
.btn-ai svg { flex-shrink: 0; }
.btn-block { display: flex !important; width: 100%; justify-content: center; }

/* ---------- AI 引擎 logo 墙 ---------- */
.engines-strip {
    padding: 36px 0;
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
    background: var(--c-bg-2);
}
.engines-label {
    text-align: center; color: var(--c-text-2); font-size: 13px;
    letter-spacing: 1.5px; text-transform: uppercase;
    margin-bottom: 20px;
}
.engines-grid {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 28px;
    max-width: 960px; margin: 0 auto;
}
.engine-chip {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px; border-radius: var(--radius-sm);
    background: var(--c-surface); border: 1px solid var(--c-border);
    color: var(--c-text-2); font-size: 14px; font-weight: 500;
    transition: all 0.2s var(--easing);
}
.engine-chip:hover { border-color: var(--c-primary); color: var(--c-primary); transform: translateY(-1px); }
.engine-chip .engine-text { white-space: nowrap; }

/* ---------- card-cta（首页 SERVICES 中的定制 CTA 卡片） ---------- */
.card-cta {
    background: var(--gradient-hero) !important;
    color: #fff !important;
    border-color: transparent !important;
}
.card-cta h3, .card-cta p, .card-cta .card-link { color: #fff !important; }
.card-cta p { color: rgba(255, 255, 255, 0.85) !important; }

/* ---------- section-more（章节末尾的"查看更多"按钮） ---------- */
.section-more { text-align: center; margin-top: 36px; }

/* ---------- page-banner-title / page-banner-subtitle ---------- */
.page-banner-title {
    font-size: 32px; font-weight: 700; color: var(--c-text);
    margin: 12px 0 10px;
}
.page-banner-subtitle {
    color: var(--c-text-2); font-size: 16px; max-width: 720px; margin: 0 auto;
    line-height: 1.7;
}

/* ---------- 案例列表卡片封面兜底 ---------- */
.case-card-body { padding: 18px 20px 20px; }
.case-card-body h3 { font-size: 17px; margin-bottom: 8px; color: var(--c-text); }
.case-card-body p { font-size: 14px; color: var(--c-text-2); line-height: 1.7; margin-bottom: 12px; }
.case-card-body time { font-size: 12.5px; color: var(--c-text-3); }
.case-cover-fallback {
    aspect-ratio: 16 / 10;
    display: flex; align-items: center; justify-content: center;
    background: var(--gradient-hero); color: #fff;
    padding: 20px; text-align: center;
}
.case-cover-fallback span { font-size: 16px; font-weight: 600; line-height: 1.4; max-width: 80%; }

/* ---------- 新闻卡 body ---------- */
.news-card-body { padding: 18px 20px 20px; }
.news-card-body time { font-size: 12.5px; color: var(--c-text-3); display: block; margin-bottom: 8px; }
.news-card-body h3 { font-size: 17px; margin-bottom: 8px; color: var(--c-text); }
.news-card-body p { font-size: 14px; color: var(--c-text-2); line-height: 1.7; }

/* ---------- 案例详情指标块（约定 HTML 写在富文本顶部） ---------- */
.case-meta {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
    padding: 24px; margin: 0 0 32px;
    background: var(--c-bg-2); border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
}
.case-meta .metric { text-align: center; }
.case-meta .metric .value {
    display: block; font-size: 26px; font-weight: 800;
    color: var(--c-primary); line-height: 1.1; margin-bottom: 6px;
}
.case-meta .metric .label { font-size: 13px; color: var(--c-text-2); }

/* ---------- 案例详情底部 CTA ---------- */
.case-extra-cta { padding: 60px 0; background: var(--c-bg-2); }
.case-extra-cta-box {
    background: var(--gradient-hero); color: #fff;
    border-radius: var(--radius-xl);
    padding: 48px 36px; text-align: center;
}
.case-extra-cta-box h2 { color: #fff; font-size: 26px; margin-bottom: 10px; }
.case-extra-cta-box p { color: rgba(255, 255, 255, 0.9); font-size: 15px; margin-bottom: 24px; max-width: 580px; margin-left: auto; margin-right: auto; }
.case-extra-cta-buttons { display: inline-flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.case-extra-cta-buttons .btn-ai {
    background: rgba(255, 255, 255, 0.16); color: #fff;
}
.case-extra-cta-buttons .btn-ai:hover { background: #fff; color: var(--c-primary); }

/* ---------- 文章详情 - sidebar / TLDR ---------- */
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 48px; padding: 48px 0; }
.article-sidebar { position: sticky; top: 100px; align-self: start; }
.article-sidebar-card {
    background: var(--c-surface); border: 1px solid var(--c-border);
    border-radius: var(--radius-lg); padding: 24px;
}
.article-sidebar-card h4 { font-size: 16px; color: var(--c-text); margin-bottom: 8px; }
.article-sidebar-card p { font-size: 13.5px; color: var(--c-text-2); margin-bottom: 16px; line-height: 1.7; }
.article-sidebar-card .btn { margin-bottom: 10px; }
.article-tldr {
    background: var(--c-primary-soft); border-left: 3px solid var(--c-primary);
    padding: 14px 18px; margin: 20px 0 28px;
    border-radius: var(--radius-sm);
}
.article-tldr strong { display: block; color: var(--c-primary); font-size: 13px; margin-bottom: 4px; letter-spacing: 1px; }
.article-tldr p { font-size: 14.5px; color: var(--c-text); line-height: 1.7; margin: 0; }

/* ---------- pricing-grid ---------- */
.pricing-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
    margin-top: 32px;
}
.pricing-card {
    background: var(--c-surface); border: 1px solid var(--c-border);
    border-radius: var(--radius-lg); padding: 28px 24px;
    transition: all 0.2s var(--easing);
}
.pricing-card:hover { border-color: var(--c-primary); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.pricing-card-highlight {
    border-color: var(--c-primary); border-width: 2px;
    box-shadow: var(--shadow-glow);
}
.pricing-badge {
    display: inline-block; padding: 4px 12px;
    background: var(--c-primary); color: var(--c-primary-on);
    border-radius: 999px; font-size: 12px; font-weight: 600;
    margin-bottom: 12px;
}
.pricing-name { font-size: 18px; color: var(--c-text); margin-bottom: 6px; font-weight: 700; }
.pricing-price { margin-bottom: 18px; padding-bottom: 18px; border-bottom: 1px solid var(--c-border); }
.pricing-price-num { font-size: 30px; font-weight: 800; color: var(--c-primary); }
.pricing-price-text { font-size: 24px; font-weight: 700; color: var(--c-text); }
.pricing-price-unit { font-size: 13px; color: var(--c-text-2); margin-left: 4px; }
.pricing-features { list-style: none; padding: 0; margin: 0 0 20px; }
.pricing-features li {
    padding: 6px 0 6px 22px; position: relative; font-size: 13.5px;
    color: var(--c-text-2); line-height: 1.6;
}
.pricing-features li::before {
    content: "✓"; position: absolute; left: 0; top: 6px;
    color: var(--c-success); font-weight: 700;
}

/* ---------- solutions-tabs（容器） ---------- */
.solutions-tabs { display: grid; grid-template-columns: 240px 1fr; gap: 32px; margin-top: 32px; }
.solutions-tabs .solution-nav { display: flex; flex-direction: column; gap: 4px; }
.solutions-content-wrap { min-width: 0; }
.solution-bullets { list-style: none; padding: 0; margin: 16px 0 24px; }
.solution-bullets li {
    padding: 8px 0 8px 28px; position: relative;
    color: var(--c-text-2); font-size: 14.5px; line-height: 1.7;
}
.solution-bullets li::before {
    content: "▸"; position: absolute; left: 8px; top: 8px;
    color: var(--c-primary); font-weight: 700;
}

/* ---------- timeline-period / timeline-body（about 时间线） ---------- */
.timeline-period {
    color: var(--c-primary); font-weight: 700;
    font-size: 13.5px; letter-spacing: 0.5px; margin-bottom: 6px;
}
.timeline-body h3 { font-size: 16px; margin-bottom: 6px; color: var(--c-text); }
.timeline-body p { color: var(--c-text-2); font-size: 14px; line-height: 1.8; }

/* ---------- flow-grid / flow-step（合作流程） ---------- */
.flow-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 18px; margin-top: 32px;
}
.flow-step-num {
    display: inline-block; width: 40px; height: 40px;
    background: var(--c-primary-soft); color: var(--c-primary);
    border-radius: 50%; font-size: 16px; font-weight: 700;
    line-height: 40px; text-align: center; margin-bottom: 12px;
}
.flow-grid .flow-step h3 { font-size: 15px; margin-bottom: 6px; color: var(--c-text); }
.flow-grid .flow-step p { font-size: 13px; color: var(--c-text-2); line-height: 1.6; }

/* ---------- team-card 增强 ---------- */
.team-card .team-name { font-size: 17px; color: var(--c-text); margin-top: 10px; margin-bottom: 4px; }
.team-card .team-role { font-size: 13.5px; color: var(--c-primary); margin-bottom: 10px; }
.team-card .team-bio { font-size: 13.5px; color: var(--c-text-2); line-height: 1.7; }
.team-avatar-fallback {
    aspect-ratio: 1 / 1; display: flex; align-items: center; justify-content: center;
    background: var(--gradient-hero); color: #fff; font-size: 22px; font-weight: 700;
    border-radius: 50%;
}

/* ---------- FAQ "没找到答案" CTA ---------- */
.faq-still-have {
    text-align: center; margin-top: 48px; padding: 36px 24px;
    background: var(--c-bg-2); border-radius: var(--radius-lg);
}
.faq-still-have p { color: var(--c-text); font-size: 17px; margin-bottom: 16px; }
.faq-still-have .btn { margin: 0 6px 8px; }

/* ---------- contact-page 网格 ---------- */
.contact-page .contact-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
    padding: 48px 0;
}
.contact-page .contact-info h2 { font-size: 26px; margin-bottom: 16px; }
.contact-page .contact-content { color: var(--c-text-2); line-height: 1.8; margin-bottom: 24px; }
.contact-page .contact-list { list-style: none; padding: 0; }
.contact-page .contact-list li {
    padding: 10px 0; display: flex; align-items: center; gap: 12px;
    color: var(--c-text-2); font-size: 14.5px;
}
.contact-page .contact-list .ico { color: var(--c-primary); font-size: 18px; }
.contact-page .contact-form-wrap {
    background: var(--c-surface); border: 1px solid var(--c-border);
    border-radius: var(--radius-lg); padding: 32px;
}
.contact-page .contact-form-wrap h3 { font-size: 20px; margin-bottom: 6px; }
.contact-page .contact-form-wrap .muted { font-size: 13px; color: var(--c-text-2); margin-bottom: 18px; }

/* ---------- CTA 表单容器 ---------- */
.cta-form-wrap {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-lg);
    padding: 28px 24px; margin: 24px auto;
    max-width: 640px;
}
.cta-form-title { color: #fff; font-size: 18px; margin-bottom: 6px; }
.cta-form-tip { color: rgba(255, 255, 255, 0.8); font-size: 13.5px; margin-bottom: 18px; }

/* ---------- subscribe-block ---------- */
.subscribe-block {
    margin-top: 48px; padding: 32px;
    background: var(--c-bg-2); border-radius: var(--radius-lg);
    text-align: center;
}
.subscribe-block h3 { font-size: 20px; margin-bottom: 16px; color: var(--c-text); }
.subscribe-block .subscribe-form {
    display: flex; gap: 8px; max-width: 440px; margin: 0 auto;
}
.subscribe-block .subscribe-form input {
    flex: 1; padding: 12px 14px;
    background: var(--c-surface); border: 1px solid var(--c-border);
    border-radius: var(--radius-sm); color: var(--c-text); font-size: 14px;
}

/* ---------- generic-list（通用分类列表） ---------- */
.generic-list { display: grid; gap: 16px; margin-top: 24px; }
.generic-list-item {
    display: grid; grid-template-columns: 200px 1fr; gap: 20px;
    padding: 16px; border: 1px solid var(--c-border);
    border-radius: var(--radius-md); background: var(--c-surface);
    color: inherit; text-decoration: none;
    transition: all 0.2s var(--easing);
}
.generic-list-item:hover { border-color: var(--c-primary); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.generic-list-cover img { width: 100%; height: 120px; object-fit: cover; border-radius: var(--radius-sm); }
.generic-list-body h3 { font-size: 17px; margin-bottom: 8px; color: var(--c-text); }
.generic-list-body p { font-size: 14px; color: var(--c-text-2); line-height: 1.7; margin-bottom: 8px; }
.generic-list-body time { font-size: 12.5px; color: var(--c-text-3); }

/* ---------- 404 页 ---------- */
.page-404 {
    min-height: calc(100vh - var(--nav-h) - 200px);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center; padding: 80px 16px;
}
.page-404-num {
    font-size: 120px; font-weight: 900; line-height: 1;
    background: var(--gradient-hero); -webkit-background-clip: text;
    background-clip: text; color: transparent;
    margin-bottom: 16px;
}
.page-404-title { font-size: 28px; color: var(--c-text); margin-bottom: 10px; }
.page-404-subtitle { color: var(--c-text-2); margin-bottom: 28px; max-width: 480px; }
.page-404-actions { display: inline-flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* ---------- yxjs-leadForm 主题适配 ---------- */
.yxjs-lead-form {
    display: grid; gap: 12px;
}
.yxjs-lead-form input,
.yxjs-lead-form textarea {
    width: 100%;
    padding: 12px 14px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    color: var(--c-text);
    font-size: 14px;
    font-family: inherit;
}
.yxjs-lead-form input:focus,
.yxjs-lead-form textarea:focus {
    outline: none; border-color: var(--c-primary);
    box-shadow: var(--shadow-glow);
}
.yxjs-lead-form button {
    padding: 14px 20px;
    background: var(--c-primary); color: var(--c-primary-on);
    border: none; border-radius: var(--radius-sm);
    font-size: 14.5px; font-weight: 600;
    cursor: pointer; transition: all 0.2s var(--easing);
}
.yxjs-lead-form button:hover:not(:disabled) {
    background: var(--c-primary-strong); transform: translateY(-1px);
}
.yxjs-lead-form button:disabled { opacity: 0.7; cursor: not-allowed; }

/* ---------- 响应式补丁 ---------- */
@media (max-width: 980px) {
    .pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { position: static; }
    .solutions-tabs { grid-template-columns: 1fr; }
    .solutions-tabs .solution-nav { flex-direction: row; flex-wrap: wrap; }
    .contact-page .contact-grid { grid-template-columns: 1fr; gap: 24px; }
    .case-meta { grid-template-columns: repeat(2, 1fr); }
    .generic-list-item { grid-template-columns: 140px 1fr; }
}
@media (max-width: 640px) {
    .pricing-grid { grid-template-columns: 1fr; }
    .case-meta { grid-template-columns: repeat(2, 1fr); padding: 16px; }
    .case-meta .metric .value { font-size: 22px; }
    .page-404-num { font-size: 80px; }
    .case-extra-cta-box { padding: 32px 20px; }
    .case-extra-cta-box h2 { font-size: 22px; }
    .generic-list-item { grid-template-columns: 1fr; }
}
