/* ============================================================
   上海数脉通达技术有限公司 — 网站样式
   设计系统：科技蓝 + 青色点缀，面向中国外贸企业老板
   ============================================================ */

:root {
  /* 主色 */
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-500: #3b82f6;
  --cyan-500: #06b6d4;
  --cyan-400: #22d3ee;
  /* 中性 */
  --navy-900: #0b1120;
  --navy-800: #111c33;
  --navy-700: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50:  #f8fafc;
  --white: #ffffff;
  /* 语义 */
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --bg-dark: #0b1120;
  --text: #0f172a;
  --text-soft: #475569;
  --border: #e2e8f0;
  --brand-gradient: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  --brand-gradient-soft: linear-gradient(135deg, rgba(37,99,235,.12) 0%, rgba(6,182,212,.12) 100%);
  /* 尺寸 */
  --maxw: 1200px;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.08);
  --shadow: 0 10px 30px -12px rgba(15,23,42,.18);
  --shadow-lg: 0 24px 60px -20px rgba(15,23,42,.28);
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans CN", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

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

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul { list-style: none; }
section { padding: 88px 0; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 860px; }

/* ---------- 文字工具 ---------- */
h1, h2, h3, h4 { line-height: 1.25; font-weight: 800; color: var(--navy-900); letter-spacing: -.01em; }
h1 { font-size: clamp(30px, 5vw, 48px); }
h2 { font-size: clamp(26px, 3.6vw, 38px); }
h3 { font-size: 21px; font-weight: 700; }
.muted { color: var(--text-soft); }
.center { text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 700; letter-spacing: .08em;
  color: var(--blue-600); text-transform: uppercase;
  padding: 6px 14px; border-radius: 999px;
  background: var(--brand-gradient-soft);
  margin-bottom: 18px;
}
.section-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.section-head p { color: var(--text-soft); font-size: 17px; margin-top: 14px; }
.gradient-text {
  background: var(--brand-gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 16px; font-weight: 700; padding: 14px 28px;
  border-radius: 999px; cursor: pointer; border: none;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--brand-gradient); color: #fff; box-shadow: 0 12px 28px -10px rgba(37,99,235,.6); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 36px -10px rgba(37,99,235,.7); }
.btn-ghost { background: #fff; color: var(--navy-900); border: 1.5px solid var(--border); }
.btn-ghost:hover { border-color: var(--blue-600); color: var(--blue-600); }
.btn-light { background: rgba(255,255,255,.12); color: #fff; border: 1.5px solid rgba(255,255,255,.35); }
.btn-light:hover { background: rgba(255,255,255,.2); }
.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-block { width: 100%; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .2s, border-color .2s;
}
.nav.scrolled { box-shadow: var(--shadow-sm); border-color: var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 19px; color: var(--navy-900); }
.brand .logo { width: 38px; height: 38px; flex: none; }
.brand small { display: block; font-size: 11px; font-weight: 600; color: var(--slate-500); letter-spacing: .04em; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a { padding: 9px 15px; border-radius: 9px; font-size: 15px; font-weight: 600; color: var(--slate-700); transition: color .15s, background .15s; }
.nav-links a:hover, .nav-links a.active { color: var(--blue-600); background: var(--slate-100); }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy-900); margin: 5px 0; border-radius: 2px; transition: .25s; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--bg-dark); color: #fff; padding: 96px 0 110px; }
.hero-bg { position: absolute; inset: 0; opacity: .9; }
.hero-bg::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(60% 60% at 80% 10%, rgba(6,182,212,.35), transparent 60%),
    radial-gradient(50% 50% at 15% 80%, rgba(37,99,235,.40), transparent 60%),
    linear-gradient(180deg, #0b1120, #0e1830);
}
.hero-grid { position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 46px 46px; mask-image: radial-gradient(80% 80% at 50% 30%, #000, transparent 90%); }
.hero .container { position: relative; z-index: 2; }
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero h1 { color: #fff; font-size: clamp(32px, 4.6vw, 52px); }
.hero .lead { font-size: 19px; color: rgba(255,255,255,.82); margin: 22px 0 32px; max-width: 540px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.hero-badges .chip { font-size: 13px; padding: 7px 13px; border-radius: 999px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16); color: rgba(255,255,255,.9); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-stats { display: flex; gap: 30px; margin-top: 46px; flex-wrap: wrap; }
.hero-stats .num { font-size: 30px; font-weight: 800; color: #fff; }
.hero-stats .num span { color: var(--cyan-400); }
.hero-stats .lbl { font-size: 13px; color: rgba(255,255,255,.6); }

/* Hero 右侧卡片：诊断工具 */
.hero-card {
  background: linear-gradient(160deg, rgba(255,255,255,.10), rgba(255,255,255,.04));
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 20px; padding: 30px; backdrop-filter: blur(8px);
  box-shadow: var(--shadow-lg);
}
.hero-card h3 { color: #fff; font-size: 20px; margin-bottom: 6px; }
.hero-card p { color: rgba(255,255,255,.7); font-size: 14px; margin-bottom: 20px; }
.hero-card .field { margin-bottom: 14px; }
.hero-card label { display: block; font-size: 13px; color: rgba(255,255,255,.8); margin-bottom: 6px; }
.hero-card input, .hero-card select {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.08); color: #fff; font-size: 15px; font-family: inherit;
}
.hero-card input::placeholder { color: rgba(255,255,255,.45); }
.hero-card input:focus, .hero-card select:focus { outline: none; border-color: var(--cyan-400); }

/* ---------- 信任条 ---------- */
.trust { background: var(--navy-800); color: #fff; padding: 22px 0; }
.trust .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.trust .t-label { font-size: 14px; color: rgba(255,255,255,.6); font-weight: 600; }
.trust .t-logos { display: flex; gap: 26px; align-items: center; flex-wrap: wrap; opacity: .85; font-weight: 700; color: rgba(255,255,255,.75); font-size: 15px; }

/* ---------- 痛点对比 ---------- */
.pain { background: var(--bg-soft); }
.contrast { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 44px; }
.contrast .col { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; }
.contrast .col.bad { border-top: 4px solid #ef4444; }
.contrast .col.good { border-top: 4px solid #10b981; }
.contrast h3 { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.contrast .tag { font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.contrast .bad .tag { background: #fee2e2; color: #b91c1c; }
.contrast .good .tag { background: #d1fae5; color: #047857; }
.contrast ul li { display: flex; gap: 10px; padding: 9px 0; color: var(--slate-600); border-bottom: 1px dashed var(--slate-200); font-size: 15px; }
.contrast ul li:last-child { border-bottom: none; }
.contrast .ico { flex: none; width: 20px; text-align: center; font-weight: 700; }
.contrast .bad .ico { color: #ef4444; }
.contrast .good .ico { color: #10b981; }

/* ---------- 服务体系（增长路径） ---------- */
.path { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 48px; }
.path .step { position: relative; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px; transition: transform .2s, box-shadow .2s; }
.path .step:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.path .step .n { font-size: 14px; font-weight: 800; color: var(--blue-600); }
.path .step .icon { width: 52px; height: 52px; border-radius: 14px; background: var(--brand-gradient-soft); display: flex; align-items: center; justify-content: center; margin: 14px 0 16px; }
.path .step h3 { font-size: 18px; margin-bottom: 8px; }
.path .step p { font-size: 14px; color: var(--text-soft); }
.path .arrow { display: none; }

/* ---------- 服务卡 ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 48px; }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--blue-500); }
.card .icon { width: 54px; height: 54px; border-radius: 14px; background: var(--brand-gradient); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--text-soft); font-size: 15px; margin-bottom: 16px; }
.card ul { display: grid; gap: 8px; }
.card ul li { display: flex; gap: 9px; font-size: 14px; color: var(--slate-600); }
.card ul li::before { content: "✓"; color: var(--blue-600); font-weight: 800; }

/* ---------- 数据背书 ---------- */
.metrics { background: var(--bg-dark); color: #fff; }
.metrics .section-head h2 { color: #fff; }
.metrics .section-head p { color: rgba(255,255,255,.7); }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.metric { text-align: center; padding: 26px 16px; border-radius: var(--radius); background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); }
.metric .num { font-size: clamp(32px, 4vw, 44px); font-weight: 800; background: var(--brand-gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.metric .lbl { color: rgba(255,255,255,.7); font-size: 15px; margin-top: 6px; }

/* ---------- 流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 48px; counter-reset: s; }
.step-card { position: relative; padding: 28px 22px; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; }
.step-card::before { counter-increment: s; content: "0" counter(s); position: absolute; top: -18px; left: 22px; width: 38px; height: 38px; border-radius: 12px; background: var(--brand-gradient); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-sm); }
.step-card h3 { margin: 14px 0 8px; font-size: 17px; }
.step-card .wk { font-size: 13px; font-weight: 700; color: var(--blue-600); }
.step-card p { font-size: 14px; color: var(--text-soft); }

/* ---------- 案例 ---------- */
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 48px; }
.case { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: transform .2s, box-shadow .2s; display: flex; flex-direction: column; }
.case:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.case .cover { height: 150px; background: var(--brand-gradient); position: relative; overflow: hidden; }
.case .cover .ind { position: absolute; left: 18px; bottom: 14px; color: #fff; font-weight: 700; font-size: 15px; text-shadow: 0 1px 4px rgba(0,0,0,.3); }
.case .cover .reg { position: absolute; right: 14px; top: 12px; font-size: 12px; color: rgba(255,255,255,.85); background: rgba(0,0,0,.25); padding: 3px 9px; border-radius: 999px; }
.case .body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.case h3 { font-size: 17px; margin-bottom: 10px; }
.case .kpis { display: flex; gap: 14px; margin: 8px 0 16px; }
.case .kpi .v { font-size: 24px; font-weight: 800; color: var(--blue-600); }
.case .kpi .k { font-size: 12px; color: var(--slate-500); }
.case p.desc { font-size: 14px; color: var(--text-soft); flex: 1; }
.case .more { margin-top: 16px; font-size: 14px; font-weight: 700; color: var(--blue-600); }

/* ---------- 评价 ---------- */
.reviews { background: var(--bg-soft); }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 48px; }
.review { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
.review .stars { color: #f59e0b; letter-spacing: 2px; margin-bottom: 12px; }
.review p { font-size: 15px; color: var(--slate-700); }
.review .who { display: flex; align-items: center; gap: 11px; margin-top: 18px; }
.review .av { width: 42px; height: 42px; border-radius: 50%; background: var(--brand-gradient); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; }
.review .who b { font-size: 15px; }
.review .who span { display: block; font-size: 13px; color: var(--slate-500); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 820px; margin: 40px auto 0; display: grid; gap: 14px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-sm); background: #fff; overflow: hidden; }
.faq-q { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 18px 22px; cursor: pointer; font-weight: 700; font-size: 16px; color: var(--navy-900); }
.faq-q .plus { flex: none; width: 24px; height: 24px; border-radius: 50%; background: var(--slate-100); display: flex; align-items: center; justify-content: center; transition: .25s; color: var(--blue-600); font-weight: 800; }
.faq-item.open .plus { transform: rotate(45deg); background: var(--brand-gradient); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a p { padding: 0 22px 20px; color: var(--text-soft); font-size: 15px; }

/* ---------- CTA 大块 ---------- */
.cta-band { background: var(--brand-gradient); color: #fff; border-radius: 24px; padding: 56px 40px; text-align: center; margin: 0 24px; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.9); margin: 14px auto 28px; max-width: 560px; font-size: 17px; }
.cta-band .hero-cta { justify-content: center; }

/* ---------- 页脚 ---------- */
.footer { background: var(--navy-900); color: rgba(255,255,255,.72); padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr; gap: 36px; }
.footer .brand { color: #fff; margin-bottom: 16px; }
.footer p.about { font-size: 14px; color: rgba(255,255,255,.6); max-width: 300px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer ul li { padding: 6px 0; font-size: 14px; }
.footer ul li a:hover { color: #fff; }
.footer .contact-line { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; font-size: 14px; padding: 5px 0; line-height: 1.7; }
.footer .contact-line a { white-space: nowrap; }
.footer .contact-line svg { flex: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 44px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; color: rgba(255,255,255,.5); }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.form-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow); }
.form-card h3 { margin-bottom: 6px; }
.form-card .sub { color: var(--text-soft); font-size: 14px; margin-bottom: 22px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--slate-300); border-radius: 10px;
  font-size: 15px; font-family: inherit; color: var(--text); background: #fff; transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue-600); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.field textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 13px; color: var(--slate-500); margin-top: 12px; }
.info-card { background: var(--bg-dark); color: #fff; border-radius: var(--radius); padding: 34px; }
.info-card h3 { color: #fff; margin-bottom: 18px; }
.info-row { display: flex; gap: 13px; padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 15px; }
.info-row:last-child { border-bottom: none; }
.info-row .lbl { color: rgba(255,255,255,.55); min-width: 64px; }
.info-row .val { color: #fff; }
.info-row .val a:hover { color: var(--cyan-400); }
.qr-note { margin-top: 20px; font-size: 13px; color: rgba(255,255,255,.6); }

/* ---------- 通用页面头 ---------- */
.page-hero { background: var(--bg-dark); color: #fff; padding: 76px 0 70px; position: relative; overflow: hidden; }
.page-hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(50% 60% at 85% 10%, rgba(6,182,212,.3), transparent 60%), radial-gradient(50% 60% at 10% 90%, rgba(37,99,235,.35), transparent 60%); }
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; }
.page-hero p { color: rgba(255,255,255,.78); margin-top: 14px; font-size: 18px; max-width: 640px; }
.breadcrumb { font-size: 13px; color: rgba(255,255,255,.55); margin-bottom: 16px; }
.breadcrumb a:hover { color: #fff; }

/* ---------- 服务详情 ---------- */
.svc-block { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; padding: 60px 0; border-bottom: 1px solid var(--border); }
.svc-block:last-child { border-bottom: none; }
.svc-block.reverse .svc-text { order: 2; }
.svc-text .eyebrow { margin-bottom: 14px; }
.svc-text h2 { font-size: 28px; margin-bottom: 14px; }
.svc-text p.lead { color: var(--text-soft); font-size: 16px; margin-bottom: 18px; }
.svc-text ul { display: grid; gap: 11px; margin-bottom: 22px; }
.svc-text ul li { display: flex; gap: 11px; font-size: 15px; color: var(--slate-700); }
.svc-text ul li::before { content: "✓"; color: var(--blue-600); font-weight: 800; flex: none; }
.svc-art { background: var(--brand-gradient-soft); border: 1px solid var(--border); border-radius: var(--radius); min-height: 280px; display: flex; align-items: center; justify-content: center; padding: 26px; }
.price-pill { display: inline-flex; align-items: baseline; gap: 6px; background: var(--navy-900); color: #fff; padding: 10px 18px; border-radius: 999px; font-size: 15px; }
.price-pill b { font-size: 22px; color: var(--cyan-400); }

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 提示条 ---------- */
.toast { position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--navy-900); color: #fff; padding: 14px 24px; border-radius: 999px; box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none; transition: .3s; z-index: 2000; font-size: 15px; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ============================================================
   AI 多语种本地化 产品页 专用组件
   ============================================================ */

/* ---------- 导航 NEW 标记 ---------- */
.nav-links a .new-dot { display: inline-block; margin-left: 5px; font-size: 10px; font-weight: 800; color: #fff; background: linear-gradient(135deg,#f97316,#ef4444); padding: 1px 5px; border-radius: 4px; vertical-align: middle; letter-spacing: .3px; }

/* ---------- 蓝海机会 ---------- */
.opp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 48px; }
.opp { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px 26px; position: relative; overflow: hidden; transition: transform .2s, box-shadow .2s; }
.opp:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.opp::after { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--brand-gradient); }
.opp .big { font-size: clamp(30px, 4vw, 40px); font-weight: 800; background: var(--brand-gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; line-height: 1.1; }
.opp h3 { font-size: 17px; margin: 12px 0 9px; }
.opp p { font-size: 14.5px; color: var(--text-soft); }

/* ---------- 翻译三级论 ---------- */
.tiers { display: grid; gap: 18px; margin-top: 48px; }
.tier { display: grid; grid-template-columns: 92px 1fr auto; gap: 26px; align-items: center; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 30px; position: relative; }
.tier .lv { text-align: center; }
.tier .lv b { display: block; font-size: 13px; font-weight: 800; color: var(--slate-400); letter-spacing: 1px; }
.tier .lv .n { font-size: 40px; font-weight: 800; line-height: 1; color: var(--slate-300); }
.tier h3 { font-size: 18px; margin-bottom: 7px; }
.tier p { font-size: 14.5px; color: var(--text-soft); }
.tier .verdict { flex: none; font-size: 13px; font-weight: 700; padding: 7px 15px; border-radius: 999px; background: var(--slate-100); color: var(--slate-500); white-space: nowrap; }
.tier.t1 { border-left: 4px solid #ef4444; }
.tier.t1 .verdict { background: #fee2e2; color: #b91c1c; }
.tier.t2 { border-left: 4px solid #f59e0b; }
.tier.t2 .verdict { background: #fef3c7; color: #b45309; }
.tier.t3 { border-left: 4px solid #10b981; background: linear-gradient(135deg, rgba(37,99,235,.04), rgba(6,182,212,.05)); box-shadow: var(--shadow); }
.tier.t3 .lv .n { background: var(--brand-gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.tier.t3 .verdict { background: #d1fae5; color: #047857; }
.tier.t3 h3::after { content: "我们在这一层"; font-size: 11px; font-weight: 800; color: #fff; background: var(--brand-gradient); padding: 2px 8px; border-radius: 5px; margin-left: 10px; vertical-align: middle; }

/* ---------- 对比表 ---------- */
.cmp-wrap { margin-top: 48px; overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
table.cmp { width: 100%; border-collapse: collapse; min-width: 680px; font-size: 15px; }
table.cmp th, table.cmp td { padding: 16px 20px; text-align: left; border-bottom: 1px solid var(--slate-200); vertical-align: top; }
table.cmp thead th { background: var(--navy-900); color: #fff; font-size: 14.5px; font-weight: 700; border-bottom: none; }
table.cmp thead th:last-child { background: linear-gradient(135deg,#2563eb,#06b6d4); }
table.cmp tbody tr:last-child td { border-bottom: none; }
table.cmp tbody tr:nth-child(even) { background: var(--slate-50); }
table.cmp td.dim { color: var(--slate-500); }
table.cmp td.dim b { color: var(--text); font-weight: 700; }
table.cmp td.win { color: var(--slate-700); background: rgba(37,99,235,.035); }
table.cmp td.win b { color: var(--blue-700); }
table.cmp tbody tr:nth-child(even) td.win { background: rgba(37,99,235,.06); }
.cmp-note { font-size: 13px; color: var(--slate-500); margin-top: 14px; text-align: center; }

/* ---------- 语种矩阵 ---------- */
.lang-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-top: 44px; }
.lang-count { font-size: 15px; color: var(--text-soft); }
.lang-count b { font-size: 26px; font-weight: 800; background: var(--brand-gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.lang-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 24px; }
.lang-group { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 26px; }
.lang-group h4 { font-size: 15px; margin-bottom: 4px; display: flex; align-items: center; gap: 8px; }
.lang-group .hint { font-size: 12.5px; color: var(--slate-500); margin-bottom: 14px; }
.lang-group .chips { display: flex; flex-wrap: wrap; gap: 7px; }
.lang-group .chips span { font-size: 13px; padding: 5px 11px; border-radius: 999px; background: var(--slate-100); color: var(--slate-700); border: 1px solid var(--slate-200); }
.lang-group .chips span.hot { background: rgba(37,99,235,.09); border-color: rgba(37,99,235,.22); color: var(--blue-700); font-weight: 600; }

/* ---------- 套餐 ---------- */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 48px; align-items: start; }
.plan { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 28px; position: relative; transition: transform .2s, box-shadow .2s; }
.plan:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.plan.hot { border-color: rgba(37,99,235,.35); box-shadow: var(--shadow); }
.plan.hot::before { content: "最多客户选择"; position: absolute; top: -13px; left: 28px; font-size: 12px; font-weight: 800; color: #fff; background: var(--brand-gradient); padding: 4px 12px; border-radius: 999px; box-shadow: var(--shadow-sm); }
.plan .pname { font-size: 18px; font-weight: 800; }
.plan .plang { font-size: 13px; color: var(--blue-600); font-weight: 700; margin-top: 5px; }
.plan .pprice { margin: 18px 0 6px; font-size: 15px; color: var(--slate-500); }
.plan .pprice b { font-size: 32px; font-weight: 800; color: var(--text); }
.plan .pfor { font-size: 13.5px; color: var(--text-soft); padding-bottom: 18px; border-bottom: 1px dashed var(--slate-200); }
.plan ul { margin: 18px 0 22px; }
.plan ul li { display: flex; gap: 9px; font-size: 14px; color: var(--slate-600); padding: 6px 0; }
.plan ul li::before { content: "✓"; flex: none; color: #10b981; font-weight: 800; }

/* ---------- 适用对象 ---------- */
.fit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 44px; }
.fit { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 22px 20px; text-align: center; }
.fit .e { font-size: 28px; }
.fit h4 { font-size: 15px; margin: 10px 0 6px; }
.fit p { font-size: 13.5px; color: var(--text-soft); }

/* ---------- 移动端导航（汉堡菜单）---------- */
@media (max-width: 900px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .brand small { display: none; }
  .nav.open .nav-links {
    display: flex; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: #fff; padding: 10px 18px 16px;
    box-shadow: var(--shadow); border-top: 1px solid var(--border);
    z-index: 1001; max-height: calc(100vh - 72px); overflow-y: auto;
  }
  .nav.open .nav-links a { padding: 13px 12px; font-size: 16px; border-radius: 10px; }
  .nav.open .nav-links a.active { background: var(--slate-100); }
  /* 汉堡 → X */
  .nav.open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav.open .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav.open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-card { max-width: 460px; }
  .path, .metric-grid, .steps, .cards, .cases-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid, .svc-block, .svc-block.reverse .svc-text { grid-template-columns: 1fr; }
  .svc-block.reverse .svc-text { order: 0; }
  .opp-grid, .plans { grid-template-columns: repeat(2, 1fr); }
  .fit-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  section { padding: 64px 0; }
  /* 移动端导航规则统一见 max-width: 900px 断点 */
  .contrast, .path, .metric-grid, .steps, .cards, .cases-grid, .review-grid, .footer-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 42px 22px; margin: 0 16px; }
  .opp-grid, .plans, .lang-grid, .fit-grid { grid-template-columns: 1fr; }
  .tier { grid-template-columns: 60px 1fr; gap: 16px; padding: 22px; }
  .tier .lv .n { font-size: 30px; }
  .tier .verdict { grid-column: 2; justify-self: start; }
  .tier.t3 h3::after { display: block; width: fit-content; margin: 8px 0 0; }
}