/* =========================================================
   智信创联 · Enterprise Agent OS 官网样式
   浅色科技风 · 现代企业级 UI
   ========================================================= */

:root {
    /* 主色板 - 深蓝科技 */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #60a5fa;
    --primary-soft: #dbeafe;

    /* 辅助色 - AI 青色 */
    --accent: #06b6d4;
    --accent-dark: #0891b2;
    --accent-soft: #cffafe;

    /* 强调色 - 紫色（智能体） */
    --purple: #7c3aed;
    --purple-soft: #ede9fe;

    /* 中性色 - 浅色背景 */
    --bg-base: #f8fafc;
    --bg-soft: #f1f5f9;
    --bg-card: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.65);

    /* 文字 */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --text-on-primary: #ffffff;

    /* 边框与阴影 */
    --border: #e2e8f0;
    --border-soft: #f1f5f9;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.08);
    --shadow-xl: 0 24px 60px rgba(37, 99, 235, 0.12);

    /* 尺寸 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --container: 1364px;
    --header-h: 72px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
        "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-base);
    background-image:
        radial-gradient(at 8% 0%, rgba(37, 99, 235, 0.08) 0px, transparent 50%),
        radial-gradient(at 92% 10%, rgba(6, 182, 212, 0.07) 0px, transparent 50%),
        radial-gradient(at 50% 100%, rgba(124, 58, 237, 0.05) 0px, transparent 50%);
    background-attachment: fixed;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 32px;
}

/* =====================  顶部导航  ===================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    z-index: 1000;
    transition: box-shadow 0.3s ease, background 0.3s ease;
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.92);
}

.nav {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.brand-logo {
    display: block;
    height: 50px;
    width: auto;
    max-width: min(300px, 52vw);
    object-fit: contain;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 6px;
    align-items: center;
}

.nav-links a {
    display: inline-block;
    padding: 10px 14px;
    font-size: 16.5px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: all 0.2s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--primary);
    background: var(--primary-soft);
}

.nav-links a.active {
    color: var(--primary);
    font-weight: 600;
}

.nav-links a.active::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.nav-panel {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-left: auto;
}

.nav-cta {
    display: flex;
    gap: 12px;
    align-items: center;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-card);
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.nav-toggle:hover {
    background: var(--primary-soft);
    border-color: var(--primary-light);
}

.nav-toggle-bar {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--text-primary);
    transition: transform 0.25s ease, opacity 0.2s ease;
}

.site-header.nav-open .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.site-header.nav-open .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}

.site-header.nav-open .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

body.nav-locked {
    overflow: hidden;
}

body.nav-locked::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.42);
    z-index: 1998;
}

.site-header.nav-open {
    z-index: 2000;
}

a.nav-cta-bar {
    display: none;
}

/* =====================  按钮  ===================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 22px;
    font-size: 14.5px;
    font-weight: 600;
    border-radius: 10px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--text-on-primary);
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.32);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.42);
}

.btn-ghost {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border);
}

.btn-ghost:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 14px 30px;
    font-size: 15px;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    width: 18px;
    height: 18px;
}

/* =====================  通用版块  ===================== */
.section {
    padding: 110px 0;
    position: relative;
}

.section-tight {
    padding: 80px 0;
}

.metrics-section {
    padding-top: 56px;
}

.section-head {
    text-align: center;
    margin-bottom: 64px;
}

.section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--primary-soft);
    color: var(--primary);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 18px;
}

.section-eyebrow .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    animation: pulse 2s infinite;
}

.section-title {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-title .gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 16.5px;
    color: var(--text-secondary);
    max-width: 720px;
    margin: 0 auto;
    line-height: 1.75;
}

/* =====================  Hero  ===================== */
.hero {
    padding-top: calc(var(--header-h) + 90px);
    padding-bottom: 90px;
    position: relative;
    overflow: hidden;
}

.hero-grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(37, 99, 235, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse at center top, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center top, black 0%, transparent 70%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-inner > * {
    min-width: 0;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 7px 16px 7px 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 999px;
    box-shadow: var(--shadow-sm);
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.hero-tag-pill {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11.5px;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.12;
    color: var(--text-primary);
    margin-bottom: 22px;
    letter-spacing: -1.2px;
}

.hero-title .gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 60%, var(--purple) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 560px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    margin-bottom: 44px;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    width: 100%;
}

.hero-stat {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px 18px;
    box-shadow: var(--shadow-sm);
    min-width: 0;
}

.hero-stat-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.hero-stat-num small {
    font-size: 16px;
    color: var(--text-tertiary);
    font-weight: 600;
    margin-left: 2px;
}

.hero-stat-label {
    font-size: 12.5px;
    color: var(--text-secondary);
    margin-top: 6px;
    line-height: 1.4;
}

/* =====================  Hero 右侧动态架构图  ===================== */
.hero-visual {
    position: relative;
    height: 560px;
}

.diagram {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 24px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.diagram::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 10%, rgba(37, 99, 235, 0.08), transparent 40%),
        radial-gradient(circle at 80% 90%, rgba(6, 182, 212, 0.08), transparent 40%);
    pointer-events: none;
}

.diagram-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 2;
    flex-shrink: 0;
}

.diagram-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.live-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.18);
    animation: pulse 1.8s infinite;
}

.diagram-stage {
    position: relative;
    width: 100%;
    flex: 1 1 auto;
    min-height: 0;
}

.node {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 10px 14px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 138px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    z-index: 3;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    white-space: nowrap;
}

.node:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.node-icon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}

.node-icon svg {
    width: 16px;
    height: 16px;
}

.node-user .node-icon { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.node-os .node-icon   { background: linear-gradient(135deg, var(--primary), var(--accent)); }
.node-a .node-icon    { background: linear-gradient(135deg, #06b6d4, #0ea5e9); }
.node-b .node-icon    { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.node-c .node-icon    { background: linear-gradient(135deg, #10b981, #06b6d4); }
.node-sys .node-icon  { background: linear-gradient(135deg, #475569, #64748b); }

/* 三层垂直布局：用户层 / OS 层 / 子智能体层 */
.node-user { top: 0;        left: 0; }
.node-a    { top: 0;        right: 0; }
.node-os   { top: 38%;      left: 50%; transform: translate(-50%, -50%); min-width: 168px; }
.node-b    { bottom: 0;     left: 0; }
.node-c    { bottom: 0;     right: 0; }
.node-sys  { display: none; }

.node-os {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.06), rgba(6, 182, 212, 0.04));
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.18);
}

.node-os::after {
    content: "Enterprise Agent OS";
    position: absolute;
    bottom: -18px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 10px;
    color: var(--primary);
    font-weight: 600;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.diagram-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.diagram-svg path {
    fill: none;
    stroke: url(#flowGrad);
    stroke-width: 1.5;
    stroke-dasharray: 6 6;
    animation: dash 1.6s linear infinite;
    opacity: 0.85;
}

@keyframes dash {
    to { stroke-dashoffset: -24; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.55; transform: scale(0.92); }
}

/* 任务流转区：作为底部独立条带，不再叠加在节点上 */
.diagram-footer {
    position: relative;
    z-index: 2;
    flex-shrink: 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border-radius: 14px;
    padding: 14px 16px;
    color: #e2e8f0;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}

.diagram-footer-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: rgba(37, 99, 235, 0.25);
    color: #93c5fd;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.diagram-footer-label::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #60a5fa;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.25);
    animation: pulse 1.6s infinite;
}

.diagram-task {
    font-size: 12.5px;
    font-family: "SF Mono", "Cascadia Code", Consolas, monospace;
    color: #cbd5e1;
    line-height: 1.5;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* =====================  能力卡片网格  ===================== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 30px 26px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.2);
}

.feature-icon svg { width: 26px; height: 26px; }

.feature-icon.c1 { background: linear-gradient(135deg, #2563eb, #06b6d4); }
.feature-icon.c2 { background: linear-gradient(135deg, #7c3aed, #ec4899); }
.feature-icon.c3 { background: linear-gradient(135deg, #06b6d4, #10b981); }
.feature-icon.c4 { background: linear-gradient(135deg, #f59e0b, #ef4444); }

.feature-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.feature-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0;
}

.feature-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* =====================  场景方案网格  ===================== */
.scenario-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    grid-template-rows: 1fr 1fr 1fr;
    gap: 22px;
    min-height: 600px;
}

.scenario-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 30px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.scenario-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.scenario-card.feature {
    grid-row: span 3;
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 60%, #0e7490 100%);
    color: #fff;
    border: none;
}

.scenario-card.feature:hover { box-shadow: 0 24px 60px rgba(30, 58, 138, 0.35); }

.scenario-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: nowrap;
}

.scenario-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--primary-soft);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0;
    flex-shrink: 0;
}

.scenario-card.feature .scenario-icon {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.scenario-icon svg { width: 24px; height: 24px; }

.scenario-tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    background: var(--primary-soft);
    color: var(--primary);
    margin-bottom: 0;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.scenario-card.feature .scenario-tag {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.scenario-title {
    font-size: 20px;
    font-weight: 700;
    margin-top: 18px;
    margin-bottom: 12px;
    color: inherit;
}

.scenario-card.feature .scenario-title { font-size: 26px; }

.scenario-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.scenario-card.feature .scenario-desc {
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
}

.scenario-list {
    list-style: none;
    margin-top: 16px;
}

.scenario-list li {
    font-size: 13.5px;
    padding: 6px 0;
    color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    gap: 8px;
}

.scenario-list li::before {
    content: "";
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
}

/* =====================  数据指标条  ===================== */
.metrics {
    background: linear-gradient(135deg, #ffffff 0%, #eff6ff 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 50px 40px;
    box-shadow: var(--shadow-md);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.metric {
    text-align: center;
    position: relative;
}

.metric + .metric::before {
    content: "";
    position: absolute;
    left: -15px;
    top: 10%;
    height: 80%;
    width: 1px;
    background: linear-gradient(180deg, transparent, var(--border), transparent);
}

.metric-num {
    font-size: 44px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    letter-spacing: -1px;
}

.metric-num small {
    font-size: 22px;
    margin-left: 2px;
}

.metric-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 12px;
}

/* =====================  CTA 条幅  ===================== */
.cta {
    background:
        radial-gradient(circle at 0% 0%, rgba(6, 182, 212, 0.25), transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(124, 58, 237, 0.25), transparent 50%),
        linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 100%);
    border-radius: var(--radius-xl);
    padding: 70px 60px;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.cta > * { position: relative; z-index: 1; }

.cta h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.cta p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    max-width: 640px;
    margin: 0 auto 32px;
    line-height: 1.75;
}

.cta .btn-ghost {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.4);
}

.cta .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    color: #fff;
}

/* =====================  Footer  ===================== */
.site-footer {
    background: #0f172a;
    color: #cbd5e1;
    padding: 70px 0 30px;
    margin-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand .brand { margin-bottom: 18px; }
.footer-brand .brand-logo {
    height: 44px;
    max-width: 280px;
}
.footer-about {
    font-size: 13.5px;
    color: #94a3b8;
    line-height: 1.85;
    margin-bottom: 20px;
}

.footer-hotline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(6, 182, 212, 0.1));
    border: 1px solid rgba(96, 165, 250, 0.25);
    border-radius: 10px;
}

.footer-hotline-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}

.footer-hotline-icon svg { width: 18px; height: 18px; }

.footer-hotline-text { display: flex; flex-direction: column; line-height: 1.2; }
.footer-hotline-label { font-size: 11.5px; color: #93c5fd; letter-spacing: 0.5px; }
.footer-hotline-num   { font-size: 17px;   color: #fff;    font-weight: 700; letter-spacing: 0.3px; margin-top: 3px; }

.footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 18px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; font-size: 13.5px; color: #94a3b8; }
.footer-col a {
    font-size: 13.5px;
    color: #94a3b8;
    transition: color 0.2s ease;
}
.footer-col a:hover { color: #fff; }

.footer-partner-contact {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.22), rgba(6, 182, 212, 0.14));
    border: 1px solid rgba(96, 165, 250, 0.35);
    border-radius: 14px;
    padding: 14px 16px;
    margin-bottom: 16px;
}

.footer-partner-line {
    margin: 0;
    font-size: 14px;
    color: #cbd5e1;
    line-height: 1.5;
    white-space: nowrap;
}

.footer-partner-line strong {
    color: #fff;
    font-weight: 700;
}

.footer-partner-line a {
    font-size: 16px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.4px;
    transition: color 0.2s;
}

.footer-partner-line a:hover { color: #93c5fd; }

.footer-partner-wechat {
    color: #86efac;
    font-weight: 600;
    font-size: 13px;
}

.footer-partner-links { list-style: none; }
.footer-partner-links li { margin-bottom: 10px; font-size: 13.5px; color: #94a3b8; }
.footer-partner-links a { color: #94a3b8; transition: color 0.2s; }
.footer-partner-links a:hover { color: #fff; }

.contact-partner-highlight {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.35), rgba(6, 182, 212, 0.2));
    border: 1px solid rgba(147, 197, 253, 0.35);
    border-radius: 16px;
    padding: 18px 20px;
    margin-bottom: 24px;
}

.contact-partner-line {
    margin: 0;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.5;
    white-space: nowrap;
}

.contact-partner-line strong {
    color: #fff;
    font-weight: 700;
}

.contact-partner-line a {
    font-size: 20px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.6px;
    transition: color 0.2s;
}

.contact-partner-line a:hover { color: #dbeafe; }

.contact-partner-wechat {
    color: #86efac;
    font-weight: 600;
    font-size: 14px;
}

/* ---- 分公司展示 ---- */
.footer-offices {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    padding: 32px 0;
    border-top: 1px solid #1e293b;
    border-bottom: 1px solid #1e293b;
    margin-bottom: 24px;
}

.office-card {
    padding: 4px 0;
}

.office-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.office-flag {
    width: 30px;
    height: 22px;
    border-radius: 3px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.office-name {
    font-size: 14.5px;
    color: #fff;
    font-weight: 600;
}

.office-name small {
    display: block;
    font-size: 11px;
    color: #64748b;
    margin-top: 2px;
    font-weight: 500;
    letter-spacing: 0.4px;
}

.office-info {
    font-size: 13px;
    color: #94a3b8;
    line-height: 1.85;
}

.office-info-line {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    margin-top: 4px;
}

.office-info-line svg {
    width: 14px;
    height: 14px;
    color: #60a5fa;
    flex-shrink: 0;
    margin-top: 4px;
}

.footer-bottom {
    padding-top: 4px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: #64748b;
}

.footer-bottom a { color: #64748b; transition: color 0.2s ease; }
.footer-bottom a:hover { color: #fff; }

/* =====================  内页 Hero（产品架构）  ===================== */
.page-hero {
    padding-top: calc(var(--header-h) + 80px);
    padding-bottom: 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero .container { position: relative; z-index: 1; }

.page-hero-grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(37, 99, 235, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse at center top, black 0%, transparent 65%);
    -webkit-mask-image: radial-gradient(ellipse at center top, black 0%, transparent 65%);
    pointer-events: none;
}

.page-hero h1 {
    font-size: 50px;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.2;
    margin-bottom: 22px;
}

.page-hero .gradient {
    background: linear-gradient(135deg, var(--primary), var(--accent), var(--purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.page-hero p {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 760px;
    margin: 0 auto 36px;
    line-height: 1.85;
}

.arch-stack {
    width: 100%;
    max-width: 1180px;
    margin: 50px auto 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.arch-layer {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 18px 32px;
    display: flex;
    align-items: center;
    gap: 22px;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
    text-align: left;
}

.arch-layer:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.arch-layer-tag {
    width: 82px;
    flex-shrink: 0;
    font-size: 11px;
    color: var(--text-tertiary);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.arch-layer-name {
    flex: 1 1 280px;
    min-width: 200px;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.arch-layer-name small {
    display: block;
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 500;
    margin-top: 2px;
    letter-spacing: 0.3px;
}

.arch-layer-modules {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    flex: 1 1 360px;
    justify-content: flex-end;
    min-width: 280px;
}

.arch-layer-modules span {
    padding: 5px 12px;
    background: var(--bg-soft);
    border-radius: 6px;
    font-size: 12.5px;
    color: var(--text-secondary);
}

.arch-layer.l1 .arch-layer-name { color: var(--primary); }
.arch-layer.l2 { background: linear-gradient(135deg, #eff6ff, #ffffff); border-color: var(--primary-light); }
.arch-layer.l2 .arch-layer-name { color: var(--primary-dark); }

/* =====================  产品板块详细模块  ===================== */
.module-section {
    padding: 90px 0;
    position: relative;
}

.module-section:nth-child(even) {
    background: linear-gradient(180deg, transparent, rgba(241, 245, 249, 0.6), transparent);
}

.module-row {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 70px;
    align-items: center;
}

.module-row-wide {
    grid-template-columns: 0.92fr 1.18fr;
    gap: 56px;
}

.module-row.reverse { direction: rtl; }
.module-row.reverse > * { direction: ltr; }

.module-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 14px;
    background: var(--primary-soft);
    color: var(--primary);
    border-radius: 8px;
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 18px;
}

.module-eyebrow .step {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
}

.module-title {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-primary);
    margin-bottom: 14px;
    letter-spacing: -0.5px;
}

.module-title-en {
    color: var(--text-tertiary);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.8px;
    margin-bottom: 24px;
}

.module-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 26px;
}

.module-points {
    list-style: none;
    margin-bottom: 30px;
}

.module-points li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 10px 0;
    font-size: 14.5px;
    color: var(--text-primary);
    line-height: 1.7;
}

.module-points li svg {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    color: var(--primary);
    margin-top: 2px;
}

.module-points li strong {
    color: var(--primary-dark);
    font-weight: 700;
}

/* ---- 模块视觉：智能内核 ---- */
.visual-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 36px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.visual-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 0%, rgba(37, 99, 235, 0.08), transparent 40%),
        radial-gradient(circle at 100% 100%, rgba(6, 182, 212, 0.08), transparent 40%);
    pointer-events: none;
}

.visual-card > * { position: relative; }

.kernel-orbit {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    max-width: 420px;
    margin: 0 auto;
}

#kernel .kernel-orbit {
    max-width: 500px;
}

.kernel-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 130px;
    height: 130px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    box-shadow: 0 0 0 8px rgba(37, 99, 235, 0.12),
                0 0 0 18px rgba(37, 99, 235, 0.06),
                0 20px 50px rgba(37, 99, 235, 0.35);
    z-index: 3;
}

.kernel-center span { font-size: 15px; }
.kernel-center small { font-size: 11px; opacity: 0.85; margin-top: 4px; letter-spacing: 0.5px; }

.kernel-ring {
    position: absolute;
    inset: 0;
    border: 1px dashed rgba(37, 99, 235, 0.25);
    border-radius: 50%;
    animation: rotate 30s linear infinite;
}

.kernel-ring.r2 {
    inset: 12%;
    border-color: rgba(6, 182, 212, 0.3);
    animation-direction: reverse;
    animation-duration: 22s;
}

.kernel-pill {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-md);
    z-index: 2;
}

.kernel-pill svg { width: 16px; height: 16px; color: var(--primary); }

.kernel-pill.p1 { top: 6%; left: 50%; transform: translateX(-50%); }
.kernel-pill.p2 { top: 50%; right: 0;  transform: translateY(-50%); }
.kernel-pill.p3 { bottom: 6%; left: 50%; transform: translateX(-50%); }
.kernel-pill.p4 { top: 50%; left: 0;  transform: translateY(-50%); }

@keyframes rotate {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* ---- 模块视觉：工具链 ---- */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.tool-chip {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px 14px;
    text-align: center;
    transition: all 0.25s ease;
}

.tool-chip:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.tool-chip-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    margin: 0 auto 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 14px;
}

.tool-chip-icon svg { width: 20px; height: 20px; }

.tool-chip-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.tool-chip-cat {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-top: 2px;
}

.tc-c1 { background: linear-gradient(135deg, #2563eb, #06b6d4); }
.tc-c2 { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.tc-c3 { background: linear-gradient(135deg, #10b981, #06b6d4); }
.tc-c4 { background: linear-gradient(135deg, #7c3aed, #ec4899); }
.tc-c5 { background: linear-gradient(135deg, #475569, #64748b); }
.tc-c6 { background: linear-gradient(135deg, #0ea5e9, #6366f1); }

/* ---- 模块视觉：群体智能 ---- */
.multi-agent {
    position: relative;
    padding: 10px;
}

.ma-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.ma-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px 18px;
    display: flex;
    align-items: center;
    gap: 16px;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.ma-card .avatar {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}

.ma-card .avatar svg { width: 22px; height: 22px; }

.ma-card .meta { flex: 1; }
.ma-card .name { font-size: 14.5px; font-weight: 700; color: var(--text-primary); }
.ma-card .role { font-size: 12.5px; color: var(--text-tertiary); margin-top: 2px; }

.ma-card .status {
    font-size: 11.5px;
    font-weight: 600;
    color: #10b981;
    background: rgba(16, 185, 129, 0.1);
    padding: 4px 10px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.ma-card .status::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #10b981;
    animation: pulse 1.6s infinite;
}

.ma-arrow {
    text-align: center;
    color: var(--text-tertiary);
    font-size: 12px;
    margin: 2px 0;
}

.ma-a1 .avatar { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.ma-a2 .avatar { background: linear-gradient(135deg, #06b6d4, #0ea5e9); }
.ma-a3 .avatar { background: linear-gradient(135deg, #10b981, #06b6d4); }
.ma-a4 .avatar { background: linear-gradient(135deg, #f59e0b, #ef4444); }

/* ---- 模块视觉：Agent Studio ---- */
.studio-mock {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.studio-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border);
}

.studio-bar .dot { width: 12px; height: 12px; border-radius: 50%; }
.studio-bar .d1 { background: #ef4444; }
.studio-bar .d2 { background: #f59e0b; }
.studio-bar .d3 { background: #10b981; }
.studio-bar .title { margin-left: 12px; font-size: 12.5px; color: var(--text-secondary); font-weight: 500; }

.studio-canvas {
    padding: 22px;
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 16px;
    min-height: 320px;
}

.studio-side {
    background: var(--bg-soft);
    border-radius: var(--radius-md);
    padding: 14px 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.studio-side-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 12.5px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: grab;
    transition: all 0.2s ease;
}

.studio-side-item:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateX(3px);
}

.studio-side-item .icon {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    background: var(--primary-soft);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 12px;
}

.studio-flow {
    position: relative;
    background:
        radial-gradient(circle, rgba(37, 99, 235, 0.18) 1px, transparent 1px) 0 0 / 18px 18px;
    border-radius: var(--radius-md);
    padding: 20px;
}

.flow-node {
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 10px;
    padding: 10px 14px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: absolute;
}

.flow-node.f1 { top: 16px;  left: 20px;  border-color: var(--primary); color: var(--primary); }
.flow-node.f2 { top: 16px;  right: 20px; border-color: var(--accent);  color: var(--accent-dark); }
.flow-node.f3 { bottom: 18px; left: 50%; transform: translateX(-50%); border-color: var(--purple); color: var(--purple); }

.flow-node .dot-sm {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
}

.studio-flow svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

/* =====================  对比 / 选择我们  ===================== */
.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.why-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 34px 28px;
    text-align: center;
    transition: all 0.3s ease;
}

.why-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.why-num {
    font-size: 40px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 6px;
}

.why-num small { font-size: 18px; }

.why-title {
    font-size: 17px;
    font-weight: 700;
    margin: 14px 0 10px;
}

.why-desc {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* =========================================================
   新增内页样式（场景方案 / 安全合规 / 案例 / 新闻 / 关于）
   ========================================================= */

/* -------- 通用：标签筛选 / 板块分隔 -------- */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 44px;
}

.filter-chip {
    padding: 9px 20px;
    border-radius: 999px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    font-family: inherit;
}

button.filter-chip {
    appearance: none;
    -webkit-appearance: none;
}

.filter-chip:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-chip.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.28);
}

/* -------- 场景方案：分类大卡 -------- */
.solution-block {
    margin-bottom: 80px;
}

.solution-block:last-child { margin-bottom: 0; }

.solution-block-head {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.solution-block-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.25);
}

.solution-block-icon svg { width: 30px; height: 30px; }
.solution-block-icon.k1 { background: linear-gradient(135deg, #2563eb, #06b6d4); }
.solution-block-icon.k2 { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.solution-block-icon.k3 { background: linear-gradient(135deg, #7c3aed, #ec4899); }

.solution-block-text { flex: 1; min-width: 280px; }
.solution-block-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 600;
    background: var(--primary-soft);
    color: var(--primary);
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}
.solution-block-title {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.3px;
    line-height: 1.3;
}
.solution-block-intro {
    font-size: 15.5px;
    color: var(--text-secondary);
    line-height: 1.85;
    margin: -6px 0 34px;
    max-width: 920px;
}

.solution-subhead {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 36px 0 22px;
    padding-left: 14px;
    border-left: 4px solid var(--primary);
}

.solution-subhead:first-of-type {
    margin-top: 0;
}

.solution-block-title small {
    display: block;
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 6px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.solution-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 26px 24px;
    position: relative;
    transition: all 0.3s ease;
    overflow: hidden;
}

.solution-card::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.solution-card:hover::after { opacity: 1; }

.solution-card-num {
    font-family: "SF Mono", Consolas, monospace;
    font-size: 12px;
    color: var(--text-tertiary);
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.solution-card-icon {
    width: 42px;
    height: 42px;
    border-radius: 11px;
    background: var(--primary-soft);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.solution-card-icon svg { width: 22px; height: 22px; }

.solution-card-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.solution-card-desc {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 14px;
}

.solution-card-points {
    list-style: none;
    border-top: 1px dashed var(--border);
    padding-top: 12px;
}

.solution-card-points li {
    font-size: 12.5px;
    color: var(--text-secondary);
    padding: 4px 0;
    display: flex;
    align-items: flex-start;
    gap: 6px;
}

.solution-card-points li::before {
    content: "";
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent);
    margin-top: 8px;
    flex-shrink: 0;
}

/* -------- AI 审计专项 -------- */
.audit-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin: -10px 0 36px;
}

.audit-metric {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(6, 182, 212, 0.06));
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: var(--radius-lg);
    padding: 20px 18px;
    text-align: center;
}

.audit-metric-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.audit-metric-num small {
    font-size: 14px;
    font-weight: 600;
    margin-left: 2px;
}

.audit-metric-label {
    font-size: 12.5px;
    color: var(--text-secondary);
    margin-top: 8px;
    line-height: 1.5;
}

.audit-center-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 8px;
}

.audit-center-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px 18px;
    position: relative;
    transition: all 0.3s ease;
}

.audit-center-card::before {
    content: attr(data-num);
    position: absolute;
    top: 14px;
    right: 14px;
    font-family: "SF Mono", Consolas, monospace;
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 0.5px;
}

.audit-center-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.audit-center-icon {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}

.audit-center-icon svg { width: 20px; height: 20px; }

.audit-center-card h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.35;
}

.audit-center-card p {
    font-size: 12.5px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.audit-chain {
    display: flex;
    align-items: stretch;
    gap: 0;
    overflow-x: auto;
    padding-bottom: 8px;
    margin-bottom: 20px;
    scrollbar-width: thin;
}

.audit-chain-step {
    flex: 1;
    min-width: 140px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 18px 14px;
    position: relative;
    text-align: center;
}

.audit-chain-step:not(:last-child)::after {
    content: "→";
    position: absolute;
    right: -14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
    font-weight: 700;
    font-size: 16px;
    z-index: 1;
}

.audit-chain-step-num {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
}

.audit-chain-step h4 {
    font-size: 13.5px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.audit-chain-step p {
    font-size: 11.5px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.audit-chain-note {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.06), transparent);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: 16px 20px;
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.75;
}

.audit-chain-note strong { color: var(--text-primary); }

.audit-case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}

.audit-case {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.audit-case:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.audit-case-head {
    padding: 22px 22px 18px;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
    color: #fff;
    position: relative;
}

.audit-case-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.4px;
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(96, 165, 250, 0.25);
    color: #93c5fd;
    margin-bottom: 10px;
}

.audit-case-head h4 {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 4px;
}

.audit-case-head small {
    display: block;
    font-size: 11px;
    color: #94a3b8;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.audit-case-body {
    padding: 20px 22px 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.audit-case-body > p {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 16px;
    flex: 1;
}

.audit-case-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 14px;
}

.audit-case-stat {
    text-align: center;
    padding: 10px 6px;
    background: var(--bg-subtle);
    border-radius: var(--radius-md);
}

.audit-case-stat .num {
    font-size: 18px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.1;
}

.audit-case-stat .num small { font-size: 11px; font-weight: 600; }

.audit-case-stat .lbl {
    font-size: 10.5px;
    color: var(--text-tertiary);
    margin-top: 4px;
    line-height: 1.4;
}

.audit-case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 14px;
}

.audit-case-tags span {
    font-size: 11px;
    padding: 3px 9px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 500;
}

.audit-case-quote {
    font-size: 13px;
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.7;
    padding-top: 12px;
    border-top: 1px dashed var(--border);
}

.audit-case-quote cite {
    display: block;
    font-style: normal;
    font-size: 11.5px;
    color: var(--text-tertiary);
    margin-top: 8px;
    font-weight: 500;
}

.audit-cases-foot {
    text-align: center;
    margin-top: 28px;
}

/* -------- 安全与合规 -------- */
.security-pillars {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
    margin-bottom: 70px;
}

.security-pillar {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 30px 24px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.security-pillar::before {
    content: "";
    position: absolute;
    top: -40%;
    left: -20%;
    width: 140%;
    height: 80%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.07), transparent 60%);
    pointer-events: none;
}

.security-pillar:hover {
    transform: translateY(-6px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-lg);
}

.security-pillar-icon {
    width: 64px;
    height: 64px;
    border-radius: 20px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.3);
    position: relative;
}

.security-pillar-icon svg { width: 30px; height: 30px; }

.security-pillar h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.security-pillar p {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* 安全架构示意图 */
.security-stack {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border-radius: var(--radius-xl);
    padding: 40px;
    color: #cbd5e1;
    position: relative;
    overflow: hidden;
}

.security-stack::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(96, 165, 250, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 165, 250, 0.06) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
}

.security-stack > * { position: relative; }

.security-stack h3 {
    color: #fff;
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 8px;
}

.security-stack h3 small {
    display: block;
    color: #60a5fa;
    font-size: 12px;
    letter-spacing: 0.8px;
    margin-top: 6px;
    font-weight: 500;
}

.security-stack-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 14px;
    margin-top: 28px;
}

.security-stack-cell {
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid rgba(96, 165, 250, 0.2);
    border-radius: 12px;
    padding: 16px;
}

.security-stack-cell-title {
    font-size: 12px;
    color: #93c5fd;
    letter-spacing: 0.6px;
    font-weight: 600;
    margin-bottom: 10px;
}

.security-stack-cell ul {
    list-style: none;
    font-size: 13px;
    color: #cbd5e1;
    line-height: 1.85;
}

.security-stack-cell li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 2px 0;
}

.security-stack-cell li::before {
    content: "✓";
    color: #34d399;
    font-weight: 700;
    font-size: 12px;
}

/* 资质认证条 */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 14px;
    margin-top: 30px;
}

.cert-chip {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 22px 14px;
    text-align: center;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-secondary);
    line-height: 1.5;
    transition: all 0.25s ease;
}

.cert-chip:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.cert-chip-icon {
    width: 36px;
    height: 36px;
    margin: 0 auto 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-soft), var(--accent-soft));
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cert-chip-icon svg { width: 18px; height: 18px; }

/* -------- 荣誉资质 -------- */
.honors-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 28px 22px;
}

.honor-item {
    text-align: center;
    transition: transform 0.25s ease;
}

.honor-item:hover {
    transform: translateY(-4px);
}

.honor-logo {
    position: relative;
    width: 116px;
    height: 116px;
    margin: 0 auto 14px;
    border-radius: 50%;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.honor-logo::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.42) 0%, rgba(255, 255, 255, 0.08) 38%, transparent 62%);
    pointer-events: none;
    z-index: 1;
}

.honor-logo::after {
    content: "";
    position: absolute;
    inset: 7px;
    border-radius: 50%;
    border: 1.5px solid rgba(255, 255, 255, 0.38);
    box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.12);
    pointer-events: none;
    z-index: 1;
}

.honor-item:hover .honor-logo {
    transform: scale(1.06);
}

.honor-text {
    position: relative;
    z-index: 2;
    font-size: 22px;
    font-weight: 800;
    line-height: 1.25;
    text-align: center;
    color: #fff;
    letter-spacing: 0.5px;
    padding: 0 6px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
}

.honor-text-sm { font-size: 18px; letter-spacing: 0.2px; }
.honor-text-xs { font-size: 13px; letter-spacing: 0.3px; font-weight: 700; }

.honor-text-stack {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.honor-text-stack small {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    opacity: 0.92;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.honor-text-stack strong {
    font-size: 28px;
    font-weight: 900;
    line-height: 1;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* 15 种绚丽渐变徽章 */
.honor-logo--c1  { background: linear-gradient(145deg, #f43f5e, #fb923c); box-shadow: 0 8px 24px rgba(244, 63, 94, 0.42); }
.honor-logo--c2  { background: linear-gradient(145deg, #2563eb, #06b6d4); box-shadow: 0 8px 24px rgba(37, 99, 235, 0.42); }
.honor-logo--c3  { background: linear-gradient(145deg, #4f46e5, #7c3aed); box-shadow: 0 8px 24px rgba(79, 70, 229, 0.42); }
.honor-logo--c4  { background: linear-gradient(145deg, #e11d48, #ec4899); box-shadow: 0 8px 24px rgba(225, 29, 72, 0.42); }
.honor-logo--c5  { background: linear-gradient(145deg, #059669, #14b8a6); box-shadow: 0 8px 24px rgba(5, 150, 105, 0.42); }
.honor-logo--c6  { background: linear-gradient(145deg, #65a30d, #16a34a); box-shadow: 0 8px 24px rgba(101, 163, 13, 0.42); }
.honor-logo--c7  { background: linear-gradient(145deg, #0ea5e9, #6366f1); box-shadow: 0 8px 24px rgba(14, 165, 233, 0.42); }
.honor-logo--c8  { background: linear-gradient(145deg, #9333ea, #d946ef); box-shadow: 0 8px 24px rgba(147, 51, 234, 0.42); }
.honor-logo--c9  { background: linear-gradient(145deg, #f59e0b, #f97316); box-shadow: 0 8px 24px rgba(245, 158, 11, 0.42); }
.honor-logo--c10 { background: linear-gradient(145deg, #0891b2, #2563eb); box-shadow: 0 8px 24px rgba(8, 145, 178, 0.42); }
.honor-logo--c11 { background: linear-gradient(145deg, #6366f1, #1d4ed8); box-shadow: 0 8px 24px rgba(99, 102, 241, 0.42); }
.honor-logo--c12 { background: linear-gradient(145deg, #ea580c, #dc2626); box-shadow: 0 8px 24px rgba(234, 88, 12, 0.42); }
.honor-logo--c13 { background: linear-gradient(145deg, #ef4444, #a855f7); box-shadow: 0 8px 24px rgba(239, 68, 68, 0.42); }
.honor-logo--c14 { background: linear-gradient(145deg, #b91c1c, #d97706); box-shadow: 0 8px 24px rgba(185, 28, 28, 0.42); }
.honor-logo--c15 { background: linear-gradient(145deg, #8b5cf6, #4f46e5); box-shadow: 0 8px 24px rgba(139, 92, 246, 0.42); }

.honor-item:hover .honor-logo--c1  { box-shadow: 0 12px 32px rgba(244, 63, 94, 0.55); }
.honor-item:hover .honor-logo--c2  { box-shadow: 0 12px 32px rgba(37, 99, 235, 0.55); }
.honor-item:hover .honor-logo--c3  { box-shadow: 0 12px 32px rgba(79, 70, 229, 0.55); }
.honor-item:hover .honor-logo--c4  { box-shadow: 0 12px 32px rgba(225, 29, 72, 0.55); }
.honor-item:hover .honor-logo--c5  { box-shadow: 0 12px 32px rgba(5, 150, 105, 0.55); }
.honor-item:hover .honor-logo--c6  { box-shadow: 0 12px 32px rgba(101, 163, 13, 0.55); }
.honor-item:hover .honor-logo--c7  { box-shadow: 0 12px 32px rgba(14, 165, 233, 0.55); }
.honor-item:hover .honor-logo--c8  { box-shadow: 0 12px 32px rgba(147, 51, 234, 0.55); }
.honor-item:hover .honor-logo--c9  { box-shadow: 0 12px 32px rgba(245, 158, 11, 0.55); }
.honor-item:hover .honor-logo--c10 { box-shadow: 0 12px 32px rgba(8, 145, 178, 0.55); }
.honor-item:hover .honor-logo--c11 { box-shadow: 0 12px 32px rgba(99, 102, 241, 0.55); }
.honor-item:hover .honor-logo--c12 { box-shadow: 0 12px 32px rgba(234, 88, 12, 0.55); }
.honor-item:hover .honor-logo--c13 { box-shadow: 0 12px 32px rgba(239, 68, 68, 0.55); }
.honor-item:hover .honor-logo--c14 { box-shadow: 0 12px 32px rgba(185, 28, 28, 0.55); }
.honor-item:hover .honor-logo--c15 { box-shadow: 0 12px 32px rgba(139, 92, 246, 0.55); }

.honor-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    line-height: 1.5;
    letter-spacing: 0.2px;
}

.honors-compact {
    margin-top: 50px;
    padding-top: 50px;
    border-top: 1px solid var(--border);
}

.honors-compact-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.honors-compact-head h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.2px;
}

.honors-compact-head a {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--primary);
}

.honors-compact-head a:hover {
    text-decoration: underline;
}

.honors-compact .honors-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 20px 16px;
}

.honors-compact .honor-logo {
    width: 92px;
    height: 92px;
    margin-bottom: 10px;
}

.honors-compact .honor-logo::after {
    inset: 5px;
}

.honors-compact .honor-label {
    font-size: 12px;
}

.honors-compact .honor-text { font-size: 18px; }
.honors-compact .honor-text-sm { font-size: 16px; }
.honors-compact .honor-text-xs { font-size: 12px; }
.honors-compact .honor-text-stack small { font-size: 12px; }
.honors-compact .honor-text-stack strong { font-size: 22px; }

/* -------- 客户案例 -------- */
.case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.case-grid [data-category].is-filter-hidden {
    display: none;
}

.case-filter-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px 20px;
    color: var(--text-secondary);
    font-size: 15px;
    background: var(--bg-card);
    border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
}

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.case-cover {
    height: 180px;
    position: relative;
    overflow: hidden;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 22px 26px;
}

.case-cover::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
}

.case-cover.c1 { background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 100%); }
.case-cover.c2 { background: linear-gradient(135deg, #0e7490 0%, #06b6d4 100%); }
.case-cover.c3 { background: linear-gradient(135deg, #5b21b6 0%, #7c3aed 100%); }
.case-cover.c4 { background: linear-gradient(135deg, #b45309 0%, #f59e0b 100%); }
.case-cover.c5 { background: linear-gradient(135deg, #0f766e 0%, #10b981 100%); }
.case-cover.c6 { background: linear-gradient(135deg, #be185d 0%, #ec4899 100%); }
.case-cover.c7 { background: linear-gradient(135deg, #312e81 0%, #4f46e5 100%); }

.case-cover-tag {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.18);
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    backdrop-filter: blur(8px);
    position: relative;
    z-index: 1;
}

.case-cover-title {
    font-size: 22px;
    font-weight: 800;
    line-height: 1.3;
    position: relative;
    z-index: 1;
    letter-spacing: -0.3px;
}

.case-cover-title small {
    display: block;
    font-size: 12.5px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    margin-top: 6px;
    letter-spacing: 0.4px;
}

.case-body { padding: 26px; flex: 1; display: flex; flex-direction: column; }

.case-body-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 18px;
}

.case-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 16px 0;
    border-top: 1px dashed var(--border);
    border-bottom: 1px dashed var(--border);
    margin-bottom: 18px;
}

.case-stats .item { text-align: center; }
.case-stats .num {
    font-size: 22px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}
.case-stats .num small { font-size: 13px; margin-left: 1px; }
.case-stats .lbl {
    font-size: 11.5px;
    color: var(--text-tertiary);
    margin-top: 6px;
    line-height: 1.4;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.case-tags span {
    background: var(--bg-soft);
    color: var(--text-secondary);
    padding: 4px 11px;
    border-radius: 6px;
    font-size: 11.5px;
    font-weight: 500;
}

.case-quote {
    margin-top: auto;
    padding: 14px 16px;
    background: var(--bg-soft);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    border-left: 3px solid var(--primary);
}

.case-quote-from {
    display: block;
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 500;
}

/* AI 审计 · 客户案例专题 */
.case-audit-spotlight {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 55%, #0f766e 100%);
    border-radius: var(--radius-xl);
    padding: 40px 38px 36px;
    color: #e2e8f0;
    position: relative;
    overflow: hidden;
}

.case-audit-spotlight::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
}

.case-audit-spotlight > * { position: relative; z-index: 1; }

.case-audit-spotlight-tag {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.35);
    color: #93c5fd;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.4px;
    margin-bottom: 14px;
}

.case-audit-spotlight-head h2 {
    font-size: 26px;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.3px;
    line-height: 1.35;
    margin-bottom: 12px;
}

.case-audit-spotlight-head p {
    font-size: 15px;
    color: #94a3b8;
    line-height: 1.85;
    max-width: 880px;
    margin-bottom: 28px;
}

.case-audit-spotlight-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 22px;
}

.case-audit-spotlight-metrics .item {
    text-align: center;
    padding: 18px 12px;
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: var(--radius-lg);
}

.case-audit-spotlight-metrics .num {
    font-size: 26px;
    font-weight: 800;
    color: #fbbf24;
    line-height: 1.1;
}

.case-audit-spotlight-metrics .num small {
    font-size: 14px;
    font-weight: 600;
}

.case-audit-spotlight-metrics .lbl {
    font-size: 12px;
    color: #94a3b8;
    margin-top: 8px;
    line-height: 1.45;
}

.case-audit-pillars {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 28px;
}

.case-audit-pillar {
    padding: 16px 18px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: var(--radius-md);
}

.case-audit-pillar strong {
    display: block;
    font-size: 14px;
    color: #fff;
    margin-bottom: 6px;
}

.case-audit-pillar span {
    font-size: 12.5px;
    color: #94a3b8;
    line-height: 1.65;
}

.case-audit-spotlight-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.case-audit-spotlight-actions .btn-ghost {
    color: #e2e8f0;
    border-color: rgba(148, 163, 184, 0.4);
}

.case-audit-spotlight-actions .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.case-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    margin-bottom: 12px;
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.case-meta span + span::before {
    content: "· ";
    color: var(--primary);
    font-weight: 700;
}

.case-story {
    list-style: none;
    margin: 0 0 16px;
    padding: 14px 16px;
    background: var(--bg-soft);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.case-story li {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.75;
    padding: 5px 0;
}

.case-story li strong {
    color: var(--primary);
    font-weight: 700;
    margin-right: 6px;
}

.case-card-audit .case-quote {
    margin-top: 0;
}

.case-card-link {
    display: inline-flex;
    align-items: center;
    margin-top: 14px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.case-card-link:hover {
    color: var(--accent-dark);
}

/* 客户 Logo 墙 */
.logo-wall {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 14px;
    margin-top: 12px;
}

.logo-chip {
    aspect-ratio: 2 / 1;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    font-size: 13.5px;
    font-weight: 700;
    color: var(--text-secondary);
    text-align: center;
    padding: 8px 12px;
    transition: all 0.25s ease;
    line-height: 1.3;
    white-space: nowrap;
}

.logo-chip:hover {
    transform: translateY(-3px);
    border-color: var(--primary-light);
    color: var(--primary);
    box-shadow: var(--shadow-md);
}

.logo-chip small {
    display: block;
    font-size: 10.5px;
    color: var(--text-tertiary);
    font-weight: 500;
    margin-top: 0;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

/* -------- 新闻洞察 -------- */
.insight-featured {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 50px;
    box-shadow: var(--shadow-md);
}

.insight-featured-cover {
    background: linear-gradient(135deg, #1e3a8a 0%, #06b6d4 100%);
    padding: 50px 44px;
    color: #fff;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 340px;
}

.insight-featured-cover::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 32px 32px;
    mask-image: radial-gradient(ellipse at center, black, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black, transparent 75%);
}

.insight-featured-cover > * { position: relative; }

.insight-featured-cover .badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    align-self: flex-start;
}

.insight-featured-cover h2 {
    font-size: 30px;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: -0.4px;
    margin-bottom: 8px;
}

.insight-featured-cover p {
    font-size: 14.5px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.75;
}

.insight-featured-body {
    padding: 44px 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.insight-featured-body .meta {
    font-size: 12.5px;
    color: var(--text-tertiary);
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}

.insight-featured-body h3 {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 16px;
    letter-spacing: -0.2px;
}

.insight-featured-body p {
    font-size: 14.5px;
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 22px;
}

.insight-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.insight-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.insight-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.insight-card-cover {
    height: 130px;
    position: relative;
    overflow: hidden;
    color: #fff;
    padding: 18px 22px;
    display: flex;
    align-items: flex-end;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.4;
}

.insight-card-cover::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
    background-size: 24px 24px;
    pointer-events: none;
}

.insight-card-cover > span { position: relative; }

.insight-card-cover.b1 { background: linear-gradient(135deg, #1d4ed8, #06b6d4); }
.insight-card-cover.b2 { background: linear-gradient(135deg, #0e7490, #10b981); }
.insight-card-cover.b3 { background: linear-gradient(135deg, #7c3aed, #ec4899); }
.insight-card-cover.b4 { background: linear-gradient(135deg, #b45309, #f59e0b); }
.insight-card-cover.b5 { background: linear-gradient(135deg, #1e293b, #475569); }
.insight-card-cover.b6 { background: linear-gradient(135deg, #be185d, #f43f5e); }

.insight-card-body {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.insight-card-meta {
    display: flex;
    gap: 8px;
    align-items: center;
    font-size: 11.5px;
    color: var(--text-tertiary);
    margin-bottom: 10px;
    letter-spacing: 0.4px;
}

.insight-card-meta .cat {
    padding: 2px 9px;
    border-radius: 4px;
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 600;
}

.insight-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 12px;
    letter-spacing: -0.1px;
}

.insight-card-excerpt {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 16px;
}

.insight-card-link {
    margin-top: auto;
    font-size: 13px;
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.insight-card-link:hover { gap: 8px; }

/* -------- 新闻详情页 -------- */
.news-article-page {
    padding-top: 100px;
}

.news-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: 32px;
}

.news-breadcrumb a {
    color: var(--text-secondary);
    transition: color 0.2s;
}

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

.news-breadcrumb span:last-child {
    color: var(--text-primary);
    font-weight: 500;
}

.news-article {
    max-width: 780px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 48px 52px;
    box-shadow: var(--shadow-md);
}

.news-article-header {
    margin-bottom: 36px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border);
}

.news-article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    font-size: 12.5px;
    color: var(--text-tertiary);
    margin-bottom: 18px;
    letter-spacing: 0.4px;
}

.news-article-cat {
    padding: 3px 10px;
    border-radius: 4px;
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 600;
}

.news-article-header h1 {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.35;
    letter-spacing: -0.4px;
    color: var(--text-primary);
}

.news-article-subtitle {
    margin-top: 14px;
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.6;
    font-weight: 500;
}

.news-article-body {
    font-size: 15.5px;
    color: var(--text-secondary);
    line-height: 1.9;
}

.news-article-body p {
    margin-bottom: 20px;
}

.news-article-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 28px 0 12px;
    line-height: 1.45;
}

.news-article-body ul {
    margin: 0 0 20px 20px;
    padding: 0;
}

.news-article-body li {
    margin-bottom: 10px;
}

.news-article-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

.news-article-footer {
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
}

.news-article-tags {
    flex: 1 1 100%;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: 8px;
}

.news-tag {
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--bg-muted);
    color: var(--text-secondary);
    font-size: 12px;
}

/* 白皮书下载条 */
.whitepaper {
    margin-top: 60px;
    background: linear-gradient(135deg, #eff6ff 0%, #cffafe 100%);
    border-radius: var(--radius-xl);
    padding: 40px 50px;
    display: flex;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
    border: 1px solid var(--border);
}

.whitepaper-icon {
    width: 70px;
    height: 70px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.3);
}

.whitepaper-icon svg { width: 32px; height: 32px; }

.whitepaper-text { flex: 1; min-width: 240px; }
.whitepaper-text h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
    letter-spacing: -0.2px;
}
.whitepaper-text p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* -------- 关于 / 联系我们 -------- */
.about-intro {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 90px;
}

.about-intro h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.3;
    letter-spacing: -0.5px;
    margin-bottom: 22px;
}

.about-intro p {
    font-size: 15.5px;
    color: var(--text-secondary);
    line-height: 1.95;
    margin-bottom: 14px;
}

.about-intro .badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.about-intro .badges span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.about-intro .badges span::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
}

.about-visual {
    background: linear-gradient(135deg, #eff6ff 0%, #cffafe 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 36px;
    box-shadow: var(--shadow-md);
}

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

.about-visual-grid .stat {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 22px 20px;
    text-align: left;
    box-shadow: var(--shadow-sm);
}

.about-visual-grid .num {
    font-size: 36px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    letter-spacing: -1px;
}

.about-visual-grid .num small { font-size: 18px; }

/* -------- 华为生态合作 -------- */
.huawei-partner-panel {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 44px;
    align-items: start;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px 44px;
    box-shadow: var(--shadow-md);
}

.huawei-partner-badge {
    display: inline-block;
    padding: 8px 16px;
    background: linear-gradient(135deg, #cf0a2c, #e85d04);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    border-radius: 999px;
    margin-bottom: 24px;
    letter-spacing: 0.3px;
}

.huawei-partner-stat .num {
    font-size: 52px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    letter-spacing: -1px;
}

.huawei-partner-stat .num small {
    font-size: 28px;
    font-weight: 700;
}

.huawei-partner-stat .lbl {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 8px;
    line-height: 1.5;
}

.huawei-partner-lead {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.85;
    margin-top: 22px;
}

.huawei-partner-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 0;
    padding: 0;
}

.huawei-partner-list li {
    position: relative;
    padding-left: 30px;
    font-size: 15px;
    line-height: 1.75;
    color: var(--text-secondary);
}

.huawei-partner-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 1px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.huawei-partner-list li strong {
    color: var(--text-primary);
    font-weight: 600;
}

.huawei-partner-strip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 36px;
    padding: 20px 24px;
    background: linear-gradient(135deg, #fff7ed 0%, #eff6ff 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.huawei-partner-strip-main {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.huawei-partner-strip-main strong {
    font-size: 16px;
    color: #cf0a2c;
    font-weight: 700;
}

.huawei-partner-strip a {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    white-space: nowrap;
    transition: color 0.2s;
}

.huawei-partner-strip a:hover { color: var(--accent); }

/* -------- 顶尖大模型生态 -------- */
.llm-model-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.llm-model-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 26px;
    position: relative;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.llm-model-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.llm-model-card--deepseek::before { background: linear-gradient(90deg, #2563eb, #6366f1); }
.llm-model-card--qwen::before { background: linear-gradient(90deg, #ff6a00, #ff8f1f); }
.llm-model-card--kimi::before { background: linear-gradient(90deg, #1e293b, #475569); }

.llm-model-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.llm-model-card-head {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 8px 12px;
    margin-bottom: 16px;
}

.llm-model-card-brand {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.llm-model-card-sub {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-tertiary);
}

.llm-model-card-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 18px;
}

.llm-model-card-tags {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    padding: 0;
}

.llm-model-card-tags li {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-muted, #f1f5f9);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 5px 12px;
}

.llm-models-home {
    margin-top: 56px;
    padding-top: 48px;
    border-top: 1px solid var(--border);
}

.llm-models-home-head {
    margin-bottom: 28px;
}

.llm-models-home-head .section-eyebrow {
    justify-content: flex-start;
    margin-bottom: 16px;
}

.llm-models-home-head .section-title {
    text-align: center;
    font-size: clamp(24px, 3vw, 34px);
    margin-bottom: 16px;
}

.llm-models-home-head .section-subtitle {
    text-align: left;
    max-width: none;
    margin: 0;
}

.inline-section-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    white-space: nowrap;
}

.inline-section-link:hover { color: var(--accent); }

.about-visual-grid .lbl {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 10px;
    line-height: 1.5;
}

/* 时间线 */
.timeline {
    position: relative;
    max-width: 920px;
    margin: 0 auto;
    padding: 20px 0;
}

.timeline::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: linear-gradient(180deg, transparent, var(--primary-light), var(--accent), transparent);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 16px 50px;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-item::before {
    content: "";
    position: absolute;
    top: 28px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 3px solid var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
    z-index: 2;
}

.timeline-item:nth-child(odd)::before { right: -8px; }
.timeline-item:nth-child(even)::before { left: -8px; }

.timeline-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
}

.timeline-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.timeline-year {
    font-size: 22px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.timeline-card h4 {
    font-size: 15px;
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 6px;
}

.timeline-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 联系表单 */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.contact-info {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
    color: #fff;
    padding: 50px 44px;
    position: relative;
    overflow: hidden;
}

.contact-info::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 0% 0%, rgba(6, 182, 212, 0.25), transparent 40%),
        radial-gradient(circle at 100% 100%, rgba(124, 58, 237, 0.2), transparent 40%);
    pointer-events: none;
}

.contact-info > * { position: relative; }

.contact-info h3 {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 10px;
    letter-spacing: -0.3px;
}

.contact-info p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.78);
    margin-bottom: 30px;
    line-height: 1.85;
}

.contact-info-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 22px;
    margin-top: 20px;
}

.contact-info-list li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.contact-info-list .icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-info-list .icon svg { width: 18px; height: 18px; }

.contact-info-list .lbl {
    display: block;
    font-size: 11.5px;
    color: #93c5fd;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.contact-info-list .val {
    font-size: 15px;
    color: #fff;
    font-weight: 600;
    line-height: 1.55;
}

.contact-info-list .val a { color: #fff; }

.contact-form {
    padding: 50px 44px;
}

.contact-form h3 {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.contact-form .sub {
    font-size: 13.5px;
    color: var(--text-secondary);
    margin-bottom: 26px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 14px;
}

.form-field {
    display: flex;
    flex-direction: column;
    margin-bottom: 14px;
}

.form-field label {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    letter-spacing: 0.3px;
}

.form-field input,
.form-field select,
.form-field textarea {
    padding: 11px 14px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-primary);
    font-family: inherit;
    transition: all 0.2s ease;
    outline: none;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    border-color: var(--primary);
    background: var(--bg-card);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.form-field textarea {
    resize: vertical;
    min-height: 96px;
}

.form-notice {
    font-size: 12px;
    color: var(--text-tertiary);
    line-height: 1.6;
    margin-top: 12px;
}

/* 合作流程 */
.process {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    position: relative;
}

.process-step {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-align: left;
    position: relative;
    transition: all 0.3s ease;
}

.process-step:hover {
    transform: translateY(-4px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
}

.process-step-num {
    font-family: "SF Mono", Consolas, monospace;
    font-size: 13px;
    color: var(--text-tertiary);
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.process-step-num::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
}

.process-step h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.process-step p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* =====================  响应式  ===================== */
@media (max-width: 1100px) {
    .hero-inner { grid-template-columns: 1fr; }
    .hero-visual { height: 480px; max-width: 100%; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .scenario-grid {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto;
    }
    .scenario-card.feature { grid-row: span 1; grid-column: span 2; }
    .metrics-grid { grid-template-columns: repeat(2, 1fr); }
    .metric + .metric::before { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
    .footer-offices { grid-template-columns: 1fr; gap: 24px; }
    .module-row, .module-row.reverse, .module-row-wide, .module-row-wide.reverse { grid-template-columns: 1fr; gap: 40px; direction: ltr; }
    .why-grid { grid-template-columns: 1fr; }
    /* 新内页 */
    .solution-grid { grid-template-columns: 1fr 1fr; }
    .audit-metrics { grid-template-columns: repeat(2, 1fr); }
    .audit-center-grid { grid-template-columns: repeat(2, 1fr); }
    .audit-case-grid { grid-template-columns: 1fr; }
    .security-pillars { grid-template-columns: 1fr 1fr; }
    .security-stack-grid { grid-template-columns: 1fr; }
    .cert-grid { grid-template-columns: repeat(3, 1fr); }
    .honors-grid,
    .honors-compact .honors-grid { grid-template-columns: repeat(3, 1fr); }
    .case-grid { grid-template-columns: 1fr; }
    .case-audit-spotlight-metrics { grid-template-columns: repeat(2, 1fr); }
    .case-audit-pillars { grid-template-columns: 1fr; }
    .case-audit-spotlight { padding: 28px 22px; }
    .case-audit-spotlight-head h2 { font-size: 22px; }
    .logo-wall { grid-template-columns: repeat(4, 1fr); }
    .insight-featured { grid-template-columns: 1fr; }
    .insight-grid { grid-template-columns: 1fr 1fr; }
    .about-intro { grid-template-columns: 1fr; gap: 40px; }
    .huawei-partner-panel { grid-template-columns: 1fr; gap: 28px; padding: 28px 24px; }
    .huawei-partner-strip { flex-direction: column; align-items: flex-start; }
    .llm-model-grid { grid-template-columns: 1fr; }
    .inline-section-link { display: inline-block; margin-left: 0; margin-top: 10px; }
    .contact-grid { grid-template-columns: 1fr; }
    .process { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
    .container { padding: 0 20px; }
    .nav {
        gap: 12px;
        position: relative;
    }
    .nav-toggle {
        display: flex;
        position: relative;
        z-index: 2002;
    }
    a.nav-cta-bar {
        display: inline-flex;
        padding: 9px 14px;
        font-size: 13px;
        flex-shrink: 0;
        position: relative;
        z-index: 2002;
    }
    .nav-cta-bar .btn-icon { display: none; }
    .nav-panel {
        margin-left: 0;
        position: fixed;
        top: var(--header-h);
        left: 0;
        bottom: 0;
        width: min(86vw, 300px);
        height: calc(100vh - var(--header-h));
        height: calc(100dvh - var(--header-h));
        z-index: 2001;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 16px 16px 32px;
        background: #fff;
        border-right: 1px solid var(--border);
        box-shadow: 8px 0 32px rgba(15, 23, 42, 0.12);
        overflow-y: auto;
        opacity: 1;
        visibility: hidden;
        transform: translateX(-100%);
        transition: transform 0.28s ease, visibility 0.28s ease;
        pointer-events: none;
    }
    .brand {
        flex: 1;
        min-width: 0;
        position: relative;
        z-index: 2002;
    }
    .brand-logo {
        height: 40px;
        max-width: min(220px, 50vw);
    }
    .site-header.nav-open .nav-panel {
        visibility: visible;
        transform: translateX(0);
        pointer-events: auto;
    }
    .nav-links {
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        width: 100%;
    }
    .nav-links a {
        display: block;
        padding: 14px 16px;
        font-size: 17px;
        border-radius: 10px;
    }
    .nav-links a.active::after { display: none; }
    .nav-links a.active {
        background: var(--primary-soft);
    }
    .nav-cta {
        flex-direction: column;
        width: 100%;
        margin-top: 20px;
        padding-top: 20px;
        border-top: 1px solid var(--border);
        gap: 10px;
    }
    .nav-cta .btn-primary { display: none; }
    .nav-cta .btn {
        width: 100%;
        justify-content: center;
    }
    .hero { padding-top: calc(var(--header-h) + 50px); padding-bottom: 60px; }
    .hero-title { font-size: 38px; }
    .hero-desc { font-size: 15.5px; }
    .hero-stats { gap: 8px; }
    .hero-stat { padding: 12px 10px; }
    .hero-stat-num { font-size: 22px; }
    .hero-stat-label { font-size: 11px; }
    .hero-visual {
        height: auto;
        min-height: 400px;
        max-width: 100%;
    }
    .diagram {
        height: auto;
        padding: 16px;
    }
    .diagram-stage { min-height: 240px; }
    .node {
        min-width: 0;
        max-width: calc(50% - 4px);
        padding: 8px 10px;
        font-size: 11.5px;
        gap: 7px;
        white-space: normal;
        line-height: 1.3;
    }
    .node-icon {
        width: 26px;
        height: 26px;
    }
    .node-icon svg {
        width: 14px;
        height: 14px;
    }
    .node-os {
        min-width: 0;
        max-width: calc(100% - 8px);
        width: max-content;
    }
    .node-os::after {
        font-size: 9px;
        bottom: -14px;
    }
    .diagram-footer {
        flex-wrap: wrap;
        padding: 12px 14px;
    }
    .diagram-task {
        white-space: normal;
        font-size: 11.5px;
    }
    .section { padding: 70px 0; }
    .section-title { font-size: 28px; }
    .page-hero h1 { font-size: 34px; }
    .feature-grid { grid-template-columns: 1fr; }
    .feature-head { gap: 12px; }
    .scenario-grid { grid-template-columns: 1fr; }
    .scenario-card.feature { grid-column: span 1; }
    #ai-audit {
        padding-bottom: 28px;
    }
    .metrics-section {
        padding: 20px 0 52px;
    }
    .metrics-grid { grid-template-columns: 1fr 1fr; }
    .metrics {
        padding: 28px 22px;
    }
    .metrics-grid {
        gap: 24px 18px;
    }
    .metric-label {
        margin-top: 8px;
    }
    .cta { padding: 50px 28px; }
    .cta h2 { font-size: 26px; }
    .module-title { font-size: 26px; }
    .arch-layer { flex-direction: column; align-items: flex-start; gap: 10px; }
    .arch-layer-tag { width: auto; }
    .arch-layer-name,
    .arch-layer-modules {
        flex: none;
        min-width: 0;
        width: 100%;
    }
    .arch-layer-modules { justify-content: flex-start; }
    .studio-canvas { grid-template-columns: 1fr; }
    /* 新内页 - 移动端 */
    .solution-grid { grid-template-columns: 1fr; }
    .solution-card {
        display: grid;
        grid-template-columns: 42px minmax(0, 1fr);
        column-gap: 12px;
        row-gap: 12px;
        align-items: start;
    }
    .solution-card-num,
    .solution-card-desc,
    .solution-card-points {
        grid-column: 1 / -1;
    }
    .solution-card-icon {
        grid-column: 1;
        margin-bottom: 0;
    }
    .solution-card-title {
        grid-column: 2;
        margin-bottom: 0;
        align-self: center;
    }
    .solution-card-desc {
        margin-bottom: 0;
    }
    .solution-card-points {
        margin-top: 2px;
    }
    .audit-metrics { grid-template-columns: 1fr 1fr; }
    .audit-center-grid { grid-template-columns: 1fr; }
    .audit-chain-step:not(:last-child)::after { display: none; }
    .audit-case-stats { grid-template-columns: 1fr; }
    .case-audit-spotlight-metrics { grid-template-columns: 1fr 1fr; }
    .case-audit-spotlight-actions { flex-direction: column; }
    .case-audit-spotlight-actions .btn { width: 100%; justify-content: center; }
    .security-pillars { grid-template-columns: 1fr; }
    .cert-grid { grid-template-columns: 1fr 1fr; }
    .honors-grid,
    .honors-compact .honors-grid { grid-template-columns: repeat(2, 1fr); gap: 22px 14px; }
    .honor-logo { width: 100px; height: 100px; }
    .honors-compact .honor-logo { width: 84px; height: 84px; }
    .logo-wall { grid-template-columns: 1fr 1fr 1fr; }
    .insight-grid { grid-template-columns: 1fr; }
    .news-article-page { padding-top: 80px; }
    .news-article { padding: 28px 22px; }
    .news-article-header h1 { font-size: 24px; }
    .news-article-subtitle { font-size: 16px; }
    .news-article-body { font-size: 15px; }
    .timeline::before { left: 18px; }
    .timeline-item { width: 100%; left: 0 !important; text-align: left !important; padding: 16px 16px 16px 50px; }
    .timeline-item::before { left: 10px !important; right: auto !important; }
    .contact-info, .contact-form { padding: 36px 28px; }
    .form-row { grid-template-columns: 1fr; }
    .process { grid-template-columns: 1fr; }
    .whitepaper { padding: 30px 24px; gap: 18px; }
    .about-intro h2 { font-size: 26px; }
    .footer-partner-line,
    .contact-partner-line { white-space: normal; }
    .contact-partner-line a { font-size: 18px; }
}

/* =====================  动画进入  ===================== */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* =========================================================
   场景方案页面 · 精致化增强
   solutions.html 专属：色调主题、装饰元素、互动微动画
   ========================================================= */

/* ---- Hero 区域装饰光斑 ---- */
.page-hero::before,
.page-hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    filter: blur(80px);
    opacity: 0.55;
}
.page-hero::before {
    width: 480px;
    height: 480px;
    top: -120px;
    left: -120px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.35), transparent 70%);
    animation: heroOrbA 16s ease-in-out infinite alternate;
}
.page-hero::after {
    width: 420px;
    height: 420px;
    top: -80px;
    right: -100px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.32), transparent 70%);
    animation: heroOrbB 18s ease-in-out infinite alternate;
}

@keyframes heroOrbA {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(60px, 40px) scale(1.08); }
}
@keyframes heroOrbB {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-50px, 30px) scale(1.12); }
}

/* ---- Filter Bar 滚动吸顶（仅 solutions.html 锚点筛选）---- */
.section-filter-wrap {
    position: sticky;
    top: var(--header-h);
    z-index: 50;
    padding: 16px 0 20px;
    pointer-events: none;
}

.section-filter-wrap > .container { pointer-events: auto; }

.filter-bar[data-section-filter] {
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: saturate(160%) blur(16px);
    -webkit-backdrop-filter: saturate(160%) blur(16px);
    border-radius: 999px;
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08),
                0 1px 0 rgba(226, 232, 240, 0.6) inset;
    border: 1px solid rgba(226, 232, 240, 0.7);
    transition: all 0.3s ease;
}

.filter-chip {
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.filter-chip:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.12);
}

.filter-chip.active {
    transform: translateY(-1px);
    box-shadow: 0 8px 22px rgba(37, 99, 235, 0.35);
}

/* ---- Solution Block 装饰强化 ---- */
.solution-block {
    position: relative;
}

.solution-block-head {
    position: relative;
    padding: 18px 22px;
    margin-bottom: 36px;
    background: linear-gradient(90deg,
        rgba(255, 255, 255, 0.85) 0%,
        rgba(248, 250, 252, 0.6) 60%,
        transparent 100%);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(226, 232, 240, 0.7);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.solution-block-head::before {
    content: "";
    position: absolute;
    left: 0;
    top: 18px;
    bottom: 18px;
    width: 4px;
    border-radius: 4px;
    background: linear-gradient(180deg, var(--primary), var(--accent));
}

.solution-block-icon {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.solution-block:hover .solution-block-icon {
    transform: rotate(-6deg) scale(1.05);
}

/* ---- 子标题增强 ---- */
.solution-subhead {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 18px 10px 14px;
    background: linear-gradient(90deg,
        rgba(37, 99, 235, 0.06),
        rgba(37, 99, 235, 0.0) 80%);
    border-radius: 0 12px 12px 0;
    overflow: hidden;
}

.solution-subhead::after {
    content: "";
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, rgba(148, 163, 184, 0.35), transparent);
    margin-left: 6px;
}

/* ---- Solution Card 精致化 ---- */
.solution-card {
    background: linear-gradient(180deg, #ffffff 0%, #fcfdff 100%);
}

.solution-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: radial-gradient(120% 80% at 100% 0%,
        rgba(37, 99, 235, 0.06),
        transparent 60%);
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
}

.solution-card:hover::before { opacity: 1; }

.solution-card-icon {
    position: relative;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.3s ease;
}

.solution-card:hover .solution-card-icon {
    transform: translateY(-3px) scale(1.06);
    box-shadow: 0 10px 22px rgba(37, 99, 235, 0.25);
}

/* ---- Solution Card 不同分组色调主题 ---- */

/* 工业制造 - 橙红 */
.solution-card[data-theme="industry"] .solution-card-icon {
    background: linear-gradient(135deg, #fff7ed, #ffedd5);
    color: #ea580c;
}
.solution-card[data-theme="industry"]:hover {
    border-color: rgba(234, 88, 12, 0.25);
}
.solution-card[data-theme="industry"]::after {
    background: linear-gradient(90deg, #f59e0b, #ef4444);
}
.solution-card[data-theme="industry"]:hover .solution-card-icon {
    box-shadow: 0 10px 22px rgba(234, 88, 12, 0.22);
}
.solution-card[data-theme="industry"] .solution-card-points li::before {
    background: #ef4444;
}

/* 政务智脑 - 深蓝 */
.solution-card[data-theme="building"] .solution-card-icon {
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    color: #1d4ed8;
}
.solution-card[data-theme="building"]:hover {
    border-color: rgba(29, 78, 216, 0.25);
}
.solution-card[data-theme="building"]::after {
    background: linear-gradient(90deg, #1d4ed8, #06b6d4);
}

/* 跨境/智算 - 青蓝 */
.solution-card[data-theme="building-alt"] .solution-card-icon {
    background: linear-gradient(135deg, #ecfeff, #cffafe);
    color: #0891b2;
}
.solution-card[data-theme="building-alt"]:hover {
    border-color: rgba(8, 145, 178, 0.28);
}
.solution-card[data-theme="building-alt"]::after {
    background: linear-gradient(90deg, #06b6d4, #6366f1);
}
.solution-card[data-theme="building-alt"]:hover .solution-card-icon {
    box-shadow: 0 10px 22px rgba(8, 145, 178, 0.22);
}
.solution-card[data-theme="building-alt"] .solution-card-points li::before {
    background: #0891b2;
}

/* 审计技术底座 - 紫色 */
.solution-card[data-theme="audit"] .solution-card-icon {
    background: linear-gradient(135deg, #f5f3ff, #ede9fe);
    color: #7c3aed;
}
.solution-card[data-theme="audit"]:hover {
    border-color: rgba(124, 58, 237, 0.25);
}
.solution-card[data-theme="audit"]::after {
    background: linear-gradient(90deg, #7c3aed, #ec4899);
}
.solution-card[data-theme="audit"]:hover .solution-card-icon {
    box-shadow: 0 10px 22px rgba(124, 58, 237, 0.22);
}
.solution-card[data-theme="audit"] .solution-card-points li::before {
    background: #7c3aed;
}

/* 审计核心优势 - 金黄/翡翠 */
.solution-card[data-theme="audit-alt"] .solution-card-icon {
    background: linear-gradient(135deg, #fefce8, #fef3c7);
    color: #b45309;
}
.solution-card[data-theme="audit-alt"]:hover {
    border-color: rgba(180, 83, 9, 0.25);
}
.solution-card[data-theme="audit-alt"]::after {
    background: linear-gradient(90deg, #f59e0b, #10b981);
}
.solution-card[data-theme="audit-alt"]:hover .solution-card-icon {
    box-shadow: 0 10px 22px rgba(180, 83, 9, 0.22);
}
.solution-card[data-theme="audit-alt"] .solution-card-points li::before {
    background: #d97706;
}

/* 以旧换新补贴 - 玫红/翡翠 */
.solution-card[data-theme="audit-trade"] .solution-card-icon {
    background: linear-gradient(135deg, #fdf2f8, #fce7f3);
    color: #be185d;
}
.solution-card[data-theme="audit-trade"]:hover {
    border-color: rgba(190, 24, 93, 0.25);
}
.solution-card[data-theme="audit-trade"]::after {
    background: linear-gradient(90deg, #ec4899, #8b5cf6);
}
.solution-card[data-theme="audit-trade"]:hover .solution-card-icon {
    box-shadow: 0 10px 22px rgba(190, 24, 93, 0.22);
}
.solution-card[data-theme="audit-trade"] .solution-card-points li::before {
    background: #ec4899;
}

/* ---- audit-center-card 顶部彩条 ---- */
.audit-center-card {
    overflow: hidden;
}

.audit-center-card::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 3px;
    background: linear-gradient(90deg, #f59e0b, #ef4444);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.audit-center-card:hover::after { transform: scaleX(1); }

.audit-center-icon {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.audit-center-card:hover .audit-center-icon {
    transform: translateY(-2px) rotate(-4deg);
}

/* 五大能力中心：每个一个色调 */
.audit-center-card:nth-child(1) .audit-center-icon { background: linear-gradient(135deg, #2563eb, #06b6d4); }
.audit-center-card:nth-child(1)::after { background: linear-gradient(90deg, #2563eb, #06b6d4); }
.audit-center-card:nth-child(2) .audit-center-icon { background: linear-gradient(135deg, #06b6d4, #14b8a6); }
.audit-center-card:nth-child(2)::after { background: linear-gradient(90deg, #06b6d4, #14b8a6); }
.audit-center-card:nth-child(3) .audit-center-icon { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.audit-center-card:nth-child(3)::after { background: linear-gradient(90deg, #f59e0b, #ef4444); }
.audit-center-card:nth-child(4) .audit-center-icon { background: linear-gradient(135deg, #7c3aed, #ec4899); }
.audit-center-card:nth-child(4)::after { background: linear-gradient(90deg, #7c3aed, #ec4899); }
.audit-center-card:nth-child(5) .audit-center-icon { background: linear-gradient(135deg, #0ea5e9, #6366f1); }
.audit-center-card:nth-child(5)::after { background: linear-gradient(90deg, #0ea5e9, #6366f1); }

/* ---- audit-metrics 美化 ---- */
.audit-metric {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.audit-metric::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.12), transparent 70%);
    pointer-events: none;
}

.audit-metric:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(37, 99, 235, 0.18);
    border-color: rgba(37, 99, 235, 0.3);
}

.audit-metric:nth-child(2)::before { background: radial-gradient(circle, rgba(6, 182, 212, 0.14), transparent 70%); }
.audit-metric:nth-child(2) { background: linear-gradient(135deg, rgba(6, 182, 212, 0.08), rgba(20, 184, 166, 0.06)); }
.audit-metric:nth-child(2) .audit-metric-num { color: #0891b2; }

.audit-metric:nth-child(3)::before { background: radial-gradient(circle, rgba(245, 158, 11, 0.14), transparent 70%); }
.audit-metric:nth-child(3) { background: linear-gradient(135deg, rgba(245, 158, 11, 0.08), rgba(239, 68, 68, 0.06)); border-color: rgba(245, 158, 11, 0.18); }
.audit-metric:nth-child(3) .audit-metric-num { color: #d97706; }

.audit-metric:nth-child(4)::before { background: radial-gradient(circle, rgba(124, 58, 237, 0.14), transparent 70%); }
.audit-metric:nth-child(4) { background: linear-gradient(135deg, rgba(124, 58, 237, 0.08), rgba(236, 72, 153, 0.06)); border-color: rgba(124, 58, 237, 0.18); }
.audit-metric:nth-child(4) .audit-metric-num { color: #7c3aed; }

/* ---- audit-chain 流程步骤精致化 ---- */
.audit-chain-step {
    background: linear-gradient(180deg, #ffffff 0%, #fafbff 100%);
    transition: all 0.3s ease;
}

.audit-chain-step:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 22px rgba(37, 99, 235, 0.12);
    border-color: var(--primary-light);
    z-index: 2;
}

.audit-chain-step-num {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
    width: 32px;
    height: 32px;
    font-size: 13px;
}

.audit-chain-step:not(:last-child)::after {
    color: var(--accent);
    font-size: 18px;
    text-shadow: 0 2px 6px rgba(6, 182, 212, 0.3);
}

/* ---- audit-case 美化 ---- */
.audit-case-head::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(96, 165, 250, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 165, 250, 0.08) 1px, transparent 1px);
    background-size: 24px 24px;
    mask-image: radial-gradient(ellipse at top right, black, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at top right, black, transparent 70%);
    pointer-events: none;
}

.audit-case-head > * { position: relative; }

.audit-case-stat {
    transition: all 0.25s ease;
}

.audit-case-stat:hover {
    background: var(--primary-soft);
    transform: translateY(-2px);
}

/* ---- security-stack 装饰强化 ---- */
.security-stack {
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.25);
}

.security-stack::after {
    content: "";
    position: absolute;
    top: -100px;
    right: -100px;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.18), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    filter: blur(20px);
}

.security-stack-cell {
    transition: all 0.3s ease;
}

.security-stack-cell:hover {
    background: rgba(30, 41, 59, 0.95);
    border-color: rgba(96, 165, 250, 0.45);
    transform: translateY(-2px);
}

/* ---- audit-chain-note 视觉强化 ---- */
.audit-chain-note {
    background: linear-gradient(90deg,
        rgba(37, 99, 235, 0.08) 0%,
        rgba(6, 182, 212, 0.04) 50%,
        transparent 100%);
    border-left-width: 4px;
    border-image: linear-gradient(180deg, var(--primary), var(--accent)) 1;
    border-style: solid;
    border-top: none;
    border-right: none;
    border-bottom: none;
}

/* ---- 滚动锚点偏移补偿（避免被 sticky 条遮挡）---- */
#public,
#industry,
#upgrade,
#building-digital,
#ai-audit,
#industry-agents {
    scroll-margin-top: calc(var(--header-h) + 90px);
}

/* ---- 响应式适配 ---- */
@media (max-width: 960px) {
    .section-filter-wrap {
        position: static;
        padding: 0 0 20px;
    }
    .filter-bar[data-section-filter] {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background: transparent;
        box-shadow: none;
        border: none;
        padding: 0;
    }
    .solution-block-head {
        padding: 14px 16px 14px 18px;
    }
    .page-hero::before,
    .page-hero::after { opacity: 0.4; }
    #public,
    #industry,
    #upgrade,
    #building-digital,
    #ai-audit,
    #industry-agents {
        scroll-margin-top: calc(var(--header-h) + 16px);
    }
    .reveal,
    .reveal.is-visible {
        opacity: 1;
        transform: none;
        transition: none;
    }
}