/* ============================================================
   奇曼数智云 · 官网样式
   设计基调：青绿(teal) 主色 + 琥珀(amber) 点缀，冷静、克制、科技感
   ============================================================ */

:root {
    --teal-900: #134e4a;
    --teal-700: #0f766e;
    --teal-500: #14b8a6;
    --teal-300: #5eead4;
    --amber: #f59e0b;
    --amber-soft: #fef3e2;
    --blue: #2563eb;
    --blue-soft: #e7efff;
    --violet: #7c3aed;
    --violet-soft: #f0eafe;
    --teal-soft: #e0f7f2;
    --ink: #0f172a;
    --ink-soft: #334155;
    --muted: #64748b;
    --line: #e2e8f0;
    --paper: #ffffff;
    --paper-soft: #f6f8fa;
    --paper-tint: #eefbf8;
    --grad: linear-gradient(135deg, #0f766e 0%, #22c1a8 100%);
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 4px 14px rgba(15, 23, 42, .05);
    --shadow-md: 0 12px 34px rgba(15, 23, 42, .10);
    --shadow-lg: 0 28px 60px rgba(15, 76, 74, .18);
    --radius: 16px;
    --radius-sm: 10px;
    --wrap: 1160px;
    --space: clamp(64px, 9vw, 120px);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--ink);
    background: var(--paper);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }

.wrap { width: min(100% - 40px, var(--wrap)); margin-inline: auto; }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 6px; font-weight: 600; font-size: 15px;
    padding: 11px 22px; border-radius: 999px;
    border: 1px solid transparent; cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn-lg { padding: 14px 30px; font-size: 16px; }
.btn-solid { background: var(--grad); color: #fff; box-shadow: 0 10px 24px rgba(15, 118, 110, .28); }
.btn-solid:hover { transform: translateY(-2px); box-shadow: 0 16px 30px rgba(15, 118, 110, .34); }
.btn-ghost { background: #fff; color: var(--teal-700); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--teal-500); color: var(--teal-700); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--teal-700); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ---------- 头部导航 ---------- */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255, 255, 255, .82);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; letter-spacing: .3px; }
.brand-mark { width: 30px; height: 30px; display: block; }
.brand-mark svg { width: 100%; height: 100%; }
.brand-name i { font-style: normal; font-weight: 600; color: var(--muted); margin-left: 2px; font-size: 15px; }

.primary-nav { display: flex; gap: 28px; margin-left: auto; }
.primary-nav a { font-size: 15px; color: var(--ink-soft); font-weight: 500; position: relative; padding: 6px 0; }
.primary-nav a::after {
    content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
    background: var(--teal-500); transition: width .25s ease;
}
.primary-nav a:hover { color: var(--teal-700); }
.primary-nav a:hover::after { width: 100%; }
.header-cta { white-space: nowrap; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: .25s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-drawer { display: none; flex-direction: column; gap: 4px; padding: 14px 20px 22px; border-bottom: 1px solid var(--line); background: #fff; }
.mobile-drawer a { padding: 12px 4px; font-weight: 500; border-bottom: 1px solid var(--paper-soft); }
.mobile-drawer .btn { margin-top: 12px; }

/* ---------- 首屏 ---------- */
.masthead { position: relative; overflow: hidden; padding-top: clamp(56px, 8vw, 92px); padding-bottom: clamp(40px, 6vw, 70px); background: linear-gradient(180deg, var(--paper-tint), #fff 62%); }
.masthead-glow {
    position: absolute; inset: -30% 28% auto 8%; height: 540px;
    background: radial-gradient(closest-side, rgba(20, 184, 166, .30), transparent 70%);
    filter: blur(10px); pointer-events: none;
}
.masthead-glow-amber {
    inset: -16% 4% auto auto; left: auto; width: 460px; height: 460px;
    background: radial-gradient(closest-side, rgba(245, 158, 11, .22), transparent 70%);
}
.masthead-grid {
    position: absolute; inset: 0; pointer-events: none;
    background-image:
        linear-gradient(rgba(15, 118, 110, .055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15, 118, 110, .055) 1px, transparent 1px);
    background-size: 38px 38px;
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 40%, transparent 78%);
    mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 40%, transparent 78%);
}
.masthead-inner { position: relative; text-align: center; }
.pill {
    display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .4px;
    color: var(--teal-700); background: #fff; border: 1px solid var(--teal-300);
    padding: 6px 16px; border-radius: 999px; box-shadow: var(--shadow-sm);
}
.masthead h1 {
    font-size: clamp(34px, 5.4vw, 58px); line-height: 1.12; font-weight: 800;
    letter-spacing: -.5px; margin: 22px auto 18px; max-width: 14ch;
}
.masthead h1 em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.masthead-sub { color: var(--muted); font-size: clamp(16px, 1.7vw, 19px); max-width: 60ch; margin: 0 auto; }
.masthead-actions { display: flex; gap: 14px; justify-content: center; margin: 30px 0 0; flex-wrap: wrap; }

/* 浏览器窗口 mock */
.browser-stage { position: relative; margin-top: clamp(44px, 6vw, 72px); }
.float-chip {
    position: absolute; z-index: 3; display: flex; align-items: center; gap: 10px;
    background: rgba(255, 255, 255, .92); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
    border: 1px solid var(--line); border-radius: 14px; padding: 11px 16px;
    box-shadow: var(--shadow-md); animation: floaty 4.5s ease-in-out infinite;
}
.float-chip b { display: block; font-size: 12px; color: var(--muted); font-weight: 600; }
.float-chip span:not(.fc-icon) { font-size: 17px; font-weight: 800; color: var(--ink); }
.float-chip-1 { left: -10px; top: 64px; }
.float-chip-2 { right: -6px; bottom: 56px; animation-delay: -2.2s; }
.fc-icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; }
.fc-icon svg { width: 20px; height: 20px; }
.fc-teal { background: var(--teal-soft); color: var(--teal-700); }
.fc-amber { background: var(--amber-soft); color: var(--amber); }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

.browser {
    position: relative; z-index: 2;
    margin: 0 auto; max-width: 940px;
    background: #fff; border: 1px solid var(--line); border-radius: 18px;
    box-shadow: var(--shadow-lg); overflow: hidden; text-align: left;
}
.browser-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; background: var(--paper-soft); border-bottom: 1px solid var(--line); }
.browser-bar .dot { width: 11px; height: 11px; border-radius: 50%; background: #cbd5e1; }
.browser-bar .dot:nth-child(1) { background: #f87171; }
.browser-bar .dot:nth-child(2) { background: #fbbf24; }
.browser-bar .dot:nth-child(3) { background: #34d399; }
.browser-url { margin-left: 10px; font-size: 12.5px; color: var(--muted); background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 4px 12px; }
.browser-body { display: grid; grid-template-columns: 64px 1fr; min-height: 300px; }
.dash-side { background: var(--teal-900); padding: 18px 0; display: flex; flex-direction: column; align-items: center; gap: 16px; }
.dash-logo { width: 26px; height: 26px; border-radius: 8px; background: var(--grad); }
.dash-nav { width: 30px; height: 8px; border-radius: 4px; background: rgba(255, 255, 255, .18); }
.dash-nav.on { background: var(--teal-300); width: 34px; }
.dash-main { padding: 22px; }
.dash-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.dash-kpi { background: var(--paper-soft); border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.dash-kpi-label { display: block; font-size: 12px; color: var(--muted); }
.dash-kpi-num { display: block; font-size: clamp(18px, 2.4vw, 24px); font-weight: 800; margin: 4px 0 2px; }
.dash-kpi-up { font-size: 12px; font-weight: 700; color: #059669; }
.dash-kpi-down { font-size: 12px; font-weight: 700; color: #dc2626; }
.dash-charts { display: grid; grid-template-columns: 1.6fr 1fr; gap: 16px; margin-top: 18px; align-items: end; }
.dash-bars { display: flex; align-items: flex-end; gap: 10px; height: 130px; padding: 14px; background: var(--paper-soft); border: 1px solid var(--line); border-radius: 12px; }
.dash-bars i { flex: 1; height: var(--h); background: var(--grad); border-radius: 6px 6px 0 0; opacity: .9; animation: grow .9s ease both; }
@keyframes grow { from { height: 0; } }
.dash-donut {
    height: 130px; border-radius: 12px; background:
        radial-gradient(circle at center, #fff 0 38%, transparent 39%),
        conic-gradient(var(--teal-500) 0 46%, var(--amber) 46% 70%, var(--teal-300) 70% 100%);
    border: 1px solid var(--line);
}

/* ---------- 指标横条 ---------- */
.metrics { background: linear-gradient(180deg, #fff, var(--paper-soft)); border-bottom: 1px solid var(--line); }
.metrics-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding-block: 30px; }
.metric { display: flex; align-items: center; gap: 14px; padding: 14px 18px; background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease; }
.metric:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.metric-icon { flex: none; width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; }
.metric-icon svg { width: 24px; height: 24px; }
.mi-teal { background: var(--teal-soft); color: var(--teal-700); }
.mi-blue { background: var(--blue-soft); color: var(--blue); }
.mi-amber { background: var(--amber-soft); color: var(--amber); }
.mi-violet { background: var(--violet-soft); color: var(--violet); }
.metric-num { font-size: clamp(24px, 3vw, 34px); font-weight: 800; color: var(--ink); letter-spacing: -1px; }
.metric-suffix { font-size: 17px; font-weight: 800; color: var(--teal-500); }
.metric-label { display: block; margin-top: 2px; color: var(--muted); font-size: 13px; }

/* ---------- 通用区块 ---------- */
.section { padding-block: var(--space); position: relative; overflow: hidden; }
.capability::before, .workflow::after, .company::before {
    content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%;
    pointer-events: none; z-index: 0;
    background: radial-gradient(closest-side, rgba(20, 184, 166, .14), transparent 70%);
}
.capability::before { top: -120px; right: -120px; }
.workflow::after { bottom: -160px; left: -120px; background: radial-gradient(closest-side, rgba(124, 58, 237, .12), transparent 70%); }
.company::before { top: -140px; left: -100px; background: radial-gradient(closest-side, rgba(245, 158, 11, .12), transparent 70%); }
.section .wrap { position: relative; z-index: 1; }
.section-head { max-width: 720px; margin: 0 auto clamp(40px, 5vw, 64px); text-align: center; }
.kicker {
    display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 1.5px;
    text-transform: uppercase; color: var(--teal-700);
    padding: 4px 0; margin-bottom: 14px; position: relative;
}
.kicker::before { content: "—"; margin-right: 8px; color: var(--teal-500); }
.kicker-light { color: #fff; }
.kicker-light::before { color: var(--teal-300); }
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; letter-spacing: -.4px; line-height: 1.25; }
.section-head p { color: var(--muted); margin-top: 14px; font-size: 17px; }

/* ---------- 产品平台 ---------- */
.platform { background: var(--paper-soft); }
.product-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.product {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
    padding: 32px 30px; box-shadow: var(--shadow-sm);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    position: relative; overflow: hidden;
}
.product::after { content: ""; position: absolute; left: 0; top: 0; width: 4px; height: 100%; background: var(--accent, var(--teal-500)); transform: scaleY(0); transform-origin: top; transition: transform .3s ease; }
.product:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent, var(--teal-300)); }
.product:hover::after { transform: scaleY(1); }
.product-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.product-icon { width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center; color: #fff; background: var(--accent, var(--teal-500)); box-shadow: 0 8px 18px var(--accent-shadow, rgba(20, 184, 166, .3)); }
.product-icon svg { width: 26px; height: 26px; }
.product-tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 1px; color: var(--accent, var(--teal-700)); background: var(--accent-soft, var(--paper-tint)); padding: 5px 13px; border-radius: 999px; }
.product-teal { --accent: #0f766e; --accent-soft: var(--teal-soft); --accent-shadow: rgba(15, 118, 110, .3); }
.product-blue { --accent: #2563eb; --accent-soft: var(--blue-soft); --accent-shadow: rgba(37, 99, 235, .28); }
.product-amber { --accent: #ea8a04; --accent-soft: var(--amber-soft); --accent-shadow: rgba(234, 138, 4, .28); }
.product-violet { --accent: #7c3aed; --accent-soft: var(--violet-soft); --accent-shadow: rgba(124, 58, 237, .26); }
.product h3 { font-size: 22px; margin: 0 0 10px; }
.product p { color: var(--muted); }
.product ul { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.product ul li { font-size: 13px; color: var(--ink-soft); background: var(--paper-soft); border: 1px solid var(--line); padding: 6px 12px; border-radius: 8px; }

/* ---------- 核心能力 Bento ---------- */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: 1fr; gap: 20px; }
.bento-cell {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
    padding: 28px; box-shadow: var(--shadow-sm);
    transition: transform .25s ease, box-shadow .25s ease;
}
.bento-cell:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.bento-lead { grid-row: span 2; background: linear-gradient(160deg, var(--teal-900), var(--teal-700)); color: #fff; border: none; display: flex; flex-direction: column; }
.bento-lead p { color: rgba(255, 255, 255, .82); }
.bento-wide { grid-column: span 2; }
.bento-icon { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: var(--paper-tint); color: var(--teal-700); margin-bottom: 16px; }
.bento-icon svg { width: 24px; height: 24px; }
.bento-lead .bento-icon { background: rgba(255, 255, 255, .14); color: #fff; }
.bento-cell h3 { font-size: 19px; margin-bottom: 8px; }
.bento-cell p { color: var(--muted); font-size: 15px; }
.bento-figures { display: flex; gap: 28px; margin-top: auto; padding-top: 24px; }
.bento-figures strong { display: block; font-size: 28px; font-weight: 800; color: var(--teal-300); }
.bento-figures span { font-size: 13px; color: rgba(255, 255, 255, .7); }

/* ---------- 行业方案 选项卡 ---------- */
.industry { background: var(--paper-soft); }
.tabs { max-width: 980px; margin: 0 auto; }
.tab-nav { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px; }
.tab-btn {
    font-size: 15px; font-weight: 600; color: var(--ink-soft);
    background: #fff; border: 1px solid var(--line); padding: 10px 22px;
    border-radius: 999px; cursor: pointer; transition: .2s;
}
.tab-btn:hover { border-color: var(--teal-300); color: var(--teal-700); }
.tab-btn.is-active { background: var(--grad); color: #fff; border-color: transparent; box-shadow: 0 8px 18px rgba(15, 118, 110, .26); }
.tab-panels { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); overflow: hidden; }
.tab-panel { display: none; grid-template-columns: 1.7fr 1fr; }
.tab-panel.is-active { display: grid; animation: fade .35s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(8px); } }
.tab-text { padding: 40px; }
.tab-text h3 { font-size: 23px; margin-bottom: 14px; }
.tab-text > p { color: var(--muted); }
.check-list { margin-top: 20px; display: grid; gap: 10px; }
.check-list li { position: relative; padding-left: 28px; color: var(--ink-soft); }
.check-list li::before {
    content: ""; position: absolute; left: 0; top: 7px; width: 16px; height: 16px;
    border-radius: 50%; background: var(--teal-500);
    box-shadow: inset 0 0 0 2px #fff; outline: 2px solid var(--teal-300);
}
.tab-side { background: linear-gradient(160deg, var(--teal-700), var(--teal-900)); color: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 40px 24px; }
.tab-stat { font-size: clamp(40px, 6vw, 62px); font-weight: 800; line-height: 1; color: #fff; }
.tab-stat-label { margin-top: 12px; color: var(--teal-300); font-size: 15px; }

/* ---------- 实施流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; counter-reset: s; position: relative; }
.steps::before { content: ""; position: absolute; left: 10%; right: 10%; top: 28px; height: 3px; border-radius: 3px; background: linear-gradient(90deg, var(--teal-500), var(--blue), var(--violet)); opacity: .35; z-index: 0; }
.step { position: relative; z-index: 1; text-align: center; }
.step-no { width: 58px; height: 58px; margin: 0 auto 16px; display: grid; place-items: center; border-radius: 50%; background: var(--grad); color: #fff; font-weight: 800; font-size: 22px; box-shadow: 0 10px 22px rgba(15, 118, 110, .32); border: 4px solid #fff; }
.step:nth-child(2) .step-no { background: linear-gradient(135deg, #1d9d8c, #2563eb); box-shadow: 0 10px 22px rgba(37, 99, 235, .26); }
.step:nth-child(3) .step-no { background: linear-gradient(135deg, #2563eb, #7c3aed); box-shadow: 0 10px 22px rgba(124, 58, 237, .24); }
.step:nth-child(4) .step-no { background: linear-gradient(135deg, #7c3aed, #c026d3); box-shadow: 0 10px 22px rgba(192, 38, 211, .22); }
.step:nth-child(5) .step-no { background: linear-gradient(135deg, #e0820a, #f59e0b); box-shadow: 0 10px 22px rgba(245, 158, 11, .26); }
.step h4 { font-size: 17px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 14px; }

/* ---------- 安全保障 ---------- */
.assurance { background: var(--ink); color: #fff; }
.assurance-grid { display: grid; grid-template-columns: 0.9fr 1.4fr; gap: clamp(32px, 5vw, 70px); align-items: start; }
.assurance-intro h2 { color: #fff; }
.assurance-intro p { color: rgba(255, 255, 255, .68); margin-top: 14px; }
.assurance-items { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.assure { background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .12); border-radius: var(--radius-sm); padding: 24px; transition: .25s; }
.assure:hover { background: rgba(20, 184, 166, .1); border-color: var(--teal-500); }
.assure h4 { font-size: 18px; margin-bottom: 8px; color: var(--teal-300); }
.assure p { color: rgba(255, 255, 255, .72); font-size: 15px; }

/* ---------- 关于奇曼 ---------- */
.company-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(36px, 6vw, 80px); align-items: center; }
.company-text > p { color: var(--muted); margin-top: 14px; }
.company-values { display: flex; gap: 10px; margin-top: 26px; flex-wrap: wrap; }
.company-values span { font-size: 14px; font-weight: 600; color: var(--teal-700); background: var(--paper-tint); border: 1px solid var(--teal-300); padding: 8px 18px; border-radius: 999px; }
.company-points { display: grid; gap: 14px; }
.company-points li { background: var(--paper-soft); border: 1px solid var(--line); border-left: 4px solid var(--teal-500); border-radius: var(--radius-sm); padding: 18px 22px; color: var(--muted); }
.company-points strong { display: block; color: var(--ink); font-size: 16px; margin-bottom: 4px; }

/* ---------- 联系我们 ---------- */
.contact-card {
    display: grid; grid-template-columns: 1.2fr 1fr; gap: 0;
    background: var(--grad); border-radius: 22px; overflow: hidden; box-shadow: var(--shadow-lg);
}
.contact-left { padding: clamp(36px, 5vw, 56px); color: #fff; }
.contact-left h2 { color: #fff; font-size: clamp(24px, 3vw, 34px); margin-bottom: 16px; }
.contact-left p { color: rgba(255, 255, 255, .86); margin-bottom: 28px; }
.contact-info { background: rgba(255, 255, 255, .08); backdrop-filter: blur(4px); padding: clamp(32px, 4vw, 48px); display: grid; gap: 22px; align-content: center; }
.contact-info li { display: grid; gap: 4px; }
.ci-key { font-size: 12px; letter-spacing: 1px; text-transform: uppercase; color: var(--teal-300); }
.ci-val { color: #fff; font-size: 16px; line-height: 1.55; }
.ci-link:hover { text-decoration: underline; }

/* ---------- 页脚 ---------- */
.site-footer { background: #0b1220; color: rgba(255, 255, 255, .7); padding-top: clamp(50px, 6vw, 72px); }
.footer-top { display: grid; grid-template-columns: 1.4fr 2fr; gap: 40px; padding-bottom: 44px; }
.brand-footer { color: #fff; }
.footer-brand p { margin-top: 14px; color: rgba(255, 255, 255, .55); max-width: 30ch; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-col h5 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-col a { display: block; padding: 6px 0; font-size: 14px; color: rgba(255, 255, 255, .6); transition: color .2s; }
.footer-col a:hover { color: var(--teal-300); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding: 24px 0 30px; border-top: 1px solid rgba(255, 255, 255, .1); font-size: 13px; color: rgba(255, 255, 255, .5); }
.footer-bottom a { color: rgba(255, 255, 255, .7); }
.footer-bottom a:hover { color: var(--teal-300); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 940px) {
    .primary-nav, .header-cta { display: none; }
    .nav-toggle { display: flex; }
    .mobile-drawer:not([hidden]) { display: flex; }
    .product-list { grid-template-columns: 1fr; }
    .bento { grid-template-columns: repeat(2, 1fr); }
    .bento-lead { grid-row: auto; }
    .bento-wide { grid-column: span 2; }
    .assurance-grid, .company-grid, .footer-top { grid-template-columns: 1fr; }
    .tab-panel.is-active { grid-template-columns: 1fr; }
    .contact-card { grid-template-columns: 1fr; }
    .steps { grid-template-columns: repeat(2, 1fr); gap: 28px 18px; }
    .steps::before { display: none; }
}

@media (max-width: 560px) {
    .metrics-row { grid-template-columns: repeat(2, 1fr); }
    .bento { grid-template-columns: 1fr; }
    .bento-wide { grid-column: auto; }
    .footer-cols { grid-template-columns: 1fr 1fr; }
    .steps { grid-template-columns: 1fr; }
    .dash-charts { grid-template-columns: 1fr; }
    .dash-donut { display: none; }
}