/* ============================================================
   Zendexu 轻汇 统一设计系统 · Marketing
   与控制台 style.css 共享同一套令牌，仅放大版式与留白。
   ============================================================ */

:root {
    --paper: #f6f7f5;
    --surface: #ffffff;
    --surface-2: #fafbfa;
    --ink: #15211c;
    --ink-2: #5c6964;
    --ink-3: #93a09a;
    --line: #e3e8e5;
    --line-strong: #cbd3cf;

    --teal: #0e9373;
    --teal-deep: #0a6e57;
    --teal-wash: #e9f5f0;
    --teal-line: #bfe2d6;

    --warn: #9a6700; --warn-wash: #fdf3df; --warn-line: #efd9a8;

    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 1px 2px rgba(21, 33, 28, .05);
    --shadow-lg: 0 14px 40px rgba(21, 33, 28, .08);
    --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", Roboto, sans-serif;
    --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas,
                 "Liberation Mono", monospace;

    /* 旧变量别名（模板内联样式仍引用） */
    --text-main: var(--ink);
    --text-muted: var(--ink-2);
    --text-dim: var(--ink-3);
    --accent-green: var(--teal);
    --border-color: var(--line);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition: none !important; animation: none !important; }
}

body.marketing-body {
    min-height: 100vh;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font-ui);
    line-height: 1.65;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; border-radius: 4px; }

.marketing-container { max-width: 1140px; margin: 0 auto; padding: 0 22px; }

/* ---------- 头部 ---------- */
.marketing-header {
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--line);
}
.marketing-logo {
    display: inline-flex;
    align-items: center;
    font-size: 19px;
    font-weight: 750;
    letter-spacing: -0.4px;
}
.marketing-logo span { color: var(--teal-deep); }
.marketing-logo::before {
    content: "";
    width: 11px;
    height: 11px;
    border-radius: 3px;
    background: var(--teal);
    margin-right: 9px;
}
.marketing-nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.marketing-nav a {
    color: var(--ink-2);
    font-size: 14px;
    padding: 6px 11px;
    border-radius: 7px;
    transition: color .15s, background .15s;
}
.marketing-nav a:hover { color: var(--ink); background: #f0f2f1; }
.marketing-nav a.active { color: var(--ink); font-weight: 650; }
.marketing-nav a.nav-cta {
    margin-left: 8px;
    color: #fff;
    background: var(--teal);
    border: 1px solid var(--teal-deep);
}
.marketing-nav a.nav-cta:hover { color: #fff; background: var(--teal-deep); }

/* ---------- 按钮 ---------- */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 20px;
    border-radius: 9px;
    font-size: 14.5px;
    font-weight: 650;
    transition: background .15s, border-color .15s, color .15s;
}
.btn-primary { background: var(--teal); color: #fff; border: 1px solid var(--teal-deep); }
.btn-primary:hover { background: var(--teal-deep); color: #fff; }
.btn-secondary { background: var(--surface); color: var(--ink); border: 1px solid var(--line-strong); }
.btn-secondary:hover { background: #f0f2f1; border-color: var(--ink-3); }

/* ---------- 首屏 ---------- */
.hero {
    padding: 72px 0 64px;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(340px, .75fr);
    gap: 56px;
    align-items: center;
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 12px;
    border: 1px solid var(--teal-line);
    background: var(--teal-wash);
    color: var(--teal-deep);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 22px;
}
h1 {
    font-size: clamp(38px, 5.4vw, 60px);
    line-height: 1.08;
    letter-spacing: -2px;
    font-weight: 750;
    margin-bottom: 20px;
}
.hero h1 .accent, .section-title .accent { color: var(--teal-deep); }
.hero-copy {
    max-width: 560px;
    color: var(--ink-2);
    font-size: 17px;
    margin-bottom: 30px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 44px;
    max-width: 600px;
}
.metric { border-top: 1px solid var(--line-strong); padding-top: 13px; }
.metric strong {
    display: block;
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 650;
    letter-spacing: -0.5px;
}
.metric span { color: var(--ink-2); font-size: 13px; }

/* ---------- 卡片基底 ---------- */
.gateway-card, .code-card, .form-card, .feature-card, .flow-card, .mini-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

/* 首屏右侧：收银台票据 */
.gateway-card { padding: 26px; box-shadow: var(--shadow-lg); }
.gateway-top, .code-top, .form-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    margin-bottom: 20px;
    border-bottom: 1px dashed var(--line-strong);
}
.gateway-title, .code-title, .form-title { font-weight: 700; letter-spacing: -.2px; }
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    border-radius: 999px;
    border: 1px solid var(--teal-line);
    background: var(--teal-wash);
    color: var(--teal-deep);
    font-family: var(--font-mono);
    font-size: 11.5px;
    font-weight: 600;
}
.amount { display: flex; align-items: baseline; gap: 8px; margin-bottom: 20px; }
.amount strong {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
    font-size: 44px;
    font-weight: 700;
    letter-spacing: -1.5px;
}
.amount span { color: var(--ink-3); font-weight: 600; }
.qr-box {
    width: 168px;
    height: 168px;
    margin: 0 auto 18px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    background:
        repeating-conic-gradient(rgba(21, 33, 28, .82) 0% 25%, transparent 0% 50%) 0 0 / 12px 12px,
        radial-gradient(circle at 50% 50%, #fff 28%, transparent 29%),
        #fff;
    background-blend-mode: normal;
}
.wallet-box {
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: var(--ink-2);
    background: var(--surface-2);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    text-align: center;
    word-break: break-all;
    margin-bottom: 14px;
}
.status-line {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    color: var(--warn);
    font-size: 13px;
    font-weight: 600;
}

/* ---------- 区块 ---------- */
.section { padding: 56px 0; border-top: 1px solid var(--line); }
.section-head { max-width: 680px; margin-bottom: 34px; }
.section-kicker {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--teal-deep);
    margin-bottom: 10px;
}
.section-title { font-size: clamp(24px, 3.4vw, 34px); letter-spacing: -1px; font-weight: 750; line-height: 1.2; margin-bottom: 12px; }
.section-desc { color: var(--ink-2); font-size: 16px; }

.feature-grid, .flow-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}
.feature-card, .flow-card, .mini-card { padding: 22px; }
.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 9px;
    background: var(--teal-wash);
    border: 1px solid var(--teal-line);
    color: var(--teal-deep);
    font-family: var(--font-mono);
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 14px;
}
.feature-card h3, .flow-card h3, .mini-card h3 { font-size: 15.5px; margin-bottom: 7px; letter-spacing: -0.2px; }
.feature-card p, .flow-card p, .mini-card p { color: var(--ink-2); font-size: 14px; }
.flow-index {
    font-family: var(--font-mono);
    font-size: 12.5px;
    font-weight: 650;
    color: var(--teal-deep);
    margin-bottom: 10px;
}

/* ---------- CTA 横幅 ---------- */
.cta-band {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    margin: 24px 0 64px;
    padding: 30px 32px;
    border-radius: var(--radius);
    background: var(--ink);
    color: #fff;
}
.cta-band h2 { font-size: 24px; letter-spacing: -0.6px; margin-bottom: 6px; }
.cta-band p { color: rgba(255, 255, 255, .66); }
.cta-band .btn-primary { border-color: transparent; }

/* ---------- 接入页（split 表单 + 代码） ---------- */
.split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 28px;
    padding: 52px 0;
    align-items: start;
}
.form-card { padding: 28px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 650; margin-bottom: 7px; }
.form-group input {
    width: 100%;
    padding: 12px 13px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line-strong);
    background: var(--surface);
    color: var(--ink);
    font-family: var(--font-ui);
    font-size: 14px;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}
.form-group input::placeholder { color: var(--ink-3); }
.form-group input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px var(--teal-wash); }
.form-group input[name="wallet"], .form-group input[name="webhook"] { font-family: var(--font-mono); font-size: 13px; }
.tip { color: var(--ink-3); font-size: 12.5px; margin-top: 6px; }

.code-card { padding: 24px; }
.code-tabs { display: flex; gap: 4px; }
.code-tabs span {
    padding: 4px 11px;
    border-radius: 6px;
    font-size: 12.5px;
    color: var(--ink-3);
    font-family: var(--font-mono);
}
.code-tabs span.active { background: var(--ink); color: #fff; }
.code-box {
    font-family: var(--font-mono);
    font-size: 12.5px;
    line-height: 1.8;
    background: #112520;       /* 全站唯一深色面：代码块 */
    border: 1px solid #1d3a32;
    border-radius: var(--radius-sm);
    color: #d7e7e0;
    padding: 18px;
    overflow-x: auto;
}
.code-comment { color: #7fa294; }
.code-key { color: #8ed2bb; }
.code-string { color: #e4cf8a; }
.code-number { color: #9ec3ea; }
.code-box + .mini-card { box-shadow: none; background: var(--surface-2); }

/* ---------- 页脚 ---------- */
.marketing-footer {
    color: var(--ink-3);
    text-align: center;
    padding: 26px 20px 38px;
    border-top: 1px solid var(--line);
    font-size: 12.5px;
    background: var(--surface);
}

/* ============================================================
   产品特性页 · 交错式特性行（feature-row）
   ============================================================ */
.feature-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 56px;
    align-items: center;
    padding: 60px 0;
    border-top: 1px solid var(--line);
}
.feature-row.reverse .feature-row-copy { order: 2; }
.feature-row-copy { max-width: 480px; }
.feature-row-copy .section-kicker { margin-bottom: 12px; }
.feature-row-copy h2 { font-size: clamp(22px, 3vw, 30px); letter-spacing: -0.8px; line-height: 1.25; margin-bottom: 16px; }
.feature-row-copy > p { color: var(--ink-2); font-size: 15.5px; margin-bottom: 20px; }
.feature-points { list-style: none; display: grid; gap: 13px; }
.feature-points li { display: flex; gap: 10px; font-size: 14.5px; color: var(--ink-2); line-height: 1.6; }
.feature-points .pt-icon {
    flex-shrink: 0;
    width: 20px; height: 20px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: var(--teal-wash);
    border: 1px solid var(--teal-line);
    color: var(--teal-deep);
    font-size: 12px; font-weight: 700;
    margin-top: 1px;
}
.feature-points strong { color: var(--ink); font-weight: 650; }
.feature-row-media { display: flex; justify-content: center; align-items: center; }

/* 特性行配图 1：能量补能对比卡 */
.energy-cards { display: flex; gap: 14px; }
.ecard {
    width: 190px;
    padding: 20px 18px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: var(--surface);
    text-align: center;
    box-shadow: var(--shadow);
}
.ecard.active { border-color: var(--teal-line); box-shadow: var(--shadow-lg); }
.ecard-title { font-size: 12.5px; color: var(--ink-2); font-weight: 650; margin-bottom: 14px; }
.ecard-title.warn { color: var(--warn); }
.ecard-amt { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: 28px; font-weight: 700; letter-spacing: -1px; color: var(--teal-deep); margin-bottom: 4px; }
.ecard-amt.muted { color: var(--ink-3); }
.ecard-amt span { font-size: 13px; font-weight: 600; }
.ecard-sub { font-size: 11.5px; color: var(--ink-3); margin-bottom: 16px; }
.ecard-tag {
    display: inline-block; width: 100%;
    padding: 8px 0; border-radius: var(--radius-sm);
    font-size: 12.5px; font-weight: 650;
    background: var(--teal-wash); color: var(--teal-deep); border: 1px solid var(--teal-line);
}
.ecard-tag.flat { background: #eef0ef; color: var(--ink-2); border-color: var(--line); }
.ecard-note { font-size: 11px; color: var(--ink-3); text-align: left; line-height: 1.5; margin-top: 12px; background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 8px 10px; }

/* 特性行配图 2：非托管资金流 */
.flow-diagram {
    display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: center;
    background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
    box-shadow: var(--shadow-lg); padding: 30px 26px;
}
.flow-node {
    flex: 1; min-width: 120px;
    text-align: center; padding: 14px 12px;
    border-radius: var(--radius-sm); border: 1px solid var(--line);
    background: var(--surface-2); font-size: 13.5px; font-weight: 650;
}
.flow-node small { display: block; font-weight: 500; color: var(--ink-3); font-size: 11.5px; margin-top: 3px; }
.flow-node.dashed { border-style: dashed; color: var(--ink-2); background: var(--surface); }
.flow-node.wallet { background: var(--teal-wash); border-color: var(--teal-line); color: var(--teal-deep); }
.flow-arrow { color: var(--ink-3); font-size: 18px; }

/* 特性行配图 3：金额指纹监听表 */
.fp-card { width: 100%; max-width: 380px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); box-shadow: var(--shadow-lg); overflow: hidden; }
.fp-head { display: flex; justify-content: space-between; padding: 12px 18px; background: var(--surface-2); border-bottom: 1px solid var(--line); font-size: 12.5px; font-weight: 650; color: var(--ink-2); }
.fp-row { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.fp-row:last-child { border-bottom: 0; }
.fp-row.bad { background: #fdf1f0; }
.fp-order { font-family: var(--font-mono); font-size: 13px; color: var(--ink); }
.fp-meta { font-size: 11.5px; color: var(--ink-3); margin-top: 2px; }
.fp-meta.bad { color: #b4332a; }
.fp-amt { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: 15px; font-weight: 700; }
.fp-tag { display: inline-block; margin-left: 8px; padding: 3px 8px; border-radius: 6px; font-size: 11px; font-weight: 650; background: var(--teal-wash); color: var(--teal-deep); }
.fp-tag.bad { background: #f6d4d0; color: #b4332a; }

/* ============================================================
   定价页
   ============================================================ */
.pricing-wrap { display: flex; justify-content: center; padding: 24px 0 8px; }
.pricing-card { position: relative; width: 100%; max-width: 480px; padding: 44px; border-radius: var(--radius); border: 1px solid var(--teal-line); background: var(--surface); box-shadow: var(--shadow-lg); overflow: hidden; }
.pricing-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 5px; background: var(--teal); }
.price-big { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: 64px; font-weight: 700; letter-spacing: -2.5px; line-height: 1; margin-bottom: 8px; }
.price-big span { font-size: 18px; font-weight: 500; color: var(--ink-3); letter-spacing: 0; }
.price-desc { color: var(--ink-2); font-size: 14.5px; padding-bottom: 28px; margin-bottom: 28px; border-bottom: 1px solid var(--line); }
.price-list { list-style: none; display: grid; gap: 13px; margin-bottom: 32px; }
.price-list li { display: flex; gap: 10px; font-size: 14.5px; color: var(--ink); line-height: 1.5; }
.price-list .pt-icon { flex-shrink: 0; width: 20px; height: 20px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--teal-wash); border: 1px solid var(--teal-line); color: var(--teal-deep); font-size: 12px; font-weight: 700; margin-top: 1px; }
.btn-block { display: flex; width: 100%; }
.btn-block .btn-primary { width: 100%; }

.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px 40px; }
.faq-item h3 { font-size: 16px; margin-bottom: 8px; letter-spacing: -0.2px; }
.faq-item p { color: var(--ink-2); font-size: 14px; line-height: 1.7; }

/* ============================================================
   API 文档页（品牌化手写文档 + 侧边导航 + 代码示例）
   ============================================================ */
.docs-layout { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 40px; padding: 36px 0 64px; align-items: start; }
.docs-side { position: sticky; top: 20px; align-self: start; }
.docs-side-title { font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); margin: 18px 0 8px; }
.docs-side-title:first-child { margin-top: 0; }
.docs-side ul { list-style: none; }
.docs-side a { display: block; padding: 6px 11px; border-radius: 7px; font-size: 13.5px; color: var(--ink-2); }
.docs-side a:hover { background: #f0f2f1; color: var(--ink); }
.docs-side a.active { background: var(--teal-wash); color: var(--teal-deep); font-weight: 650; }
.docs-side .btn-secondary { margin-top: 18px; width: 100%; font-size: 13px; min-height: 38px; }

.docs-main { max-width: 760px; }
.docs-section { padding-bottom: 44px; margin-bottom: 44px; border-bottom: 1px solid var(--line); scroll-margin-top: 20px; }
.docs-section:last-child { border-bottom: 0; }
.docs-section h2 { font-size: 24px; letter-spacing: -0.6px; margin-bottom: 10px; }
.docs-section > p { color: var(--ink-2); font-size: 15px; margin-bottom: 20px; }
.endpoint-line { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }
.method { font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: #fff; padding: 4px 9px; border-radius: 6px; letter-spacing: .04em; }
.method.post { background: #2563eb; }
.method.get { background: var(--teal-deep); }
.endpoint { font-family: var(--font-mono); font-size: 13.5px; font-weight: 600; color: var(--ink); background: var(--surface-2); border: 1px solid var(--line); padding: 5px 10px; border-radius: 6px; word-break: break-all; }
.params-table { width: 100%; border-collapse: collapse; font-size: 13.5px; margin: 8px 0 8px; }
.params-table th { text-align: left; font-weight: 650; color: var(--ink-2); background: var(--surface-2); padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 12.5px; }
.params-table td { padding: 11px 12px; border-bottom: 1px solid var(--line); color: var(--ink-2); vertical-align: top; }
.p-name { font-family: var(--font-mono); font-weight: 650; color: var(--ink); }
.p-type { font-family: var(--font-mono); color: #8b5cf6; font-size: 12.5px; }
.p-req { font-size: 11.5px; font-weight: 650; color: #b4332a; }
.p-req.opt { color: var(--ink-3); }
.docs-codetitle { font-family: var(--font-mono); font-size: 11.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); margin: 22px 0 8px; }
.docs-cta { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; background: var(--teal-wash); border: 1px solid var(--teal-line); border-radius: var(--radius); padding: 18px 22px; margin-bottom: 22px; }
.docs-cta div strong { display: block; font-size: 14.5px; }
.docs-cta div span { font-size: 13px; color: var(--ink-2); }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
    .hero { grid-template-columns: 1fr; gap: 36px; padding: 48px 0 44px; }
    .gateway-card { max-width: 440px; }
    .split { grid-template-columns: 1fr; }
    .feature-grid, .flow-grid { grid-template-columns: 1fr; }
    .metrics { grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .feature-row { grid-template-columns: 1fr; gap: 32px; padding: 44px 0; }
    .feature-row.reverse .feature-row-copy { order: 0; }
    .faq-grid { grid-template-columns: 1fr; gap: 24px; }
    .docs-layout { grid-template-columns: 1fr; gap: 0; }
    .docs-side { position: static; display: flex; flex-wrap: wrap; gap: 4px; padding-bottom: 24px; margin-bottom: 24px; border-bottom: 1px solid var(--line); }
    .docs-side ul { display: flex; flex-wrap: wrap; gap: 4px; }
    .docs-side-title { width: 100%; }
    .docs-side .btn-secondary { width: auto; }
}
@media (max-width: 640px) {
    .hide-mobile { display: none; }
    .marketing-header { flex-direction: column; align-items: flex-start; gap: 10px; }
    .metrics { grid-template-columns: 1fr 1fr; }
    .cta-band { padding: 24px; }
    .energy-cards { flex-direction: column; align-items: center; }
    .pricing-card { padding: 32px 24px; }
}