/* ============================================================
   商服通 · 数字科技服务平台  统一样式表
   适配：桌面端 / 移动端 H5
   ============================================================ */

:root {
  --brand: #1d4ed8;
  --brand-2: #3b82f6;
  --brand-deep: #0b3bb0;
  --brand-soft: #eef4ff;
  --accent: #06b6d4;
  --ok: #10b981;
  --ok-soft: #e8f9f2;
  --warn: #f59e0b;
  --warn-soft: #fff7e8;
  --bg: #f5f7fc;
  --card: #ffffff;
  --line: #e6eaf3;
  --ink: #0f172a;
  --ink-2: #475569;
  --ink-3: #8794a8;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 2px 10px rgba(16, 38, 84, .06);
  --shadow-lg: 0 14px 36px rgba(16, 38, 84, .12);
  --max: 1180px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.7;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 18px; }

/* ---------------- 通用按钮 ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 11px 22px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: .18s;
  white-space: nowrap;
  font-family: inherit;
}
.btn-primary {
  background: linear-gradient(135deg, var(--brand-2), var(--brand));
  color: #fff;
  box-shadow: 0 6px 16px rgba(29, 78, 216, .26);
}
.btn-primary:hover { filter: brightness(1.06); transform: translateY(-1px); }
.btn-ghost { background: #fff; color: var(--brand); border-color: #c9d8f7; }
.btn-ghost:hover { background: var(--brand-soft); }
.btn-block { width: 100%; }
.btn-lg { padding: 14px 30px; font-size: 16px; border-radius: 12px; }
.btn-sm { padding: 8px 16px; font-size: 14px; border-radius: 8px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }

/* ---------------- 顶部导航 ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 26px;
  height: 66px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(135deg, var(--brand-2), var(--brand));
  color: #fff; font-weight: 800; font-size: 19px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 14px rgba(29, 78, 216, .3);
}
.logo-text strong { display: block; font-size: 17px; letter-spacing: .5px; line-height: 1.2; }
.logo-text em {
  display: block; font-style: normal; font-size: 11px;
  color: var(--ink-3); letter-spacing: 1.5px; line-height: 1.4;
}
.main-nav { display: flex; gap: 4px; margin-left: auto; }
.main-nav a {
  padding: 8px 15px; border-radius: 9px; font-size: 15px;
  color: var(--ink-2); font-weight: 500; transition: .18s;
}
.main-nav a:hover { color: var(--brand); background: var(--brand-soft); }
.main-nav a.active { color: var(--brand); background: var(--brand-soft); font-weight: 700; }
.header-actions { display: flex; align-items: center; gap: 14px; }
.header-tel {
  font-size: 14px; color: var(--ink-2); font-weight: 600;
  display: flex; align-items: center; gap: 6px;
}
.header-tel::before { content: "☎"; color: var(--brand); }
.nav-toggle {
  display: none; margin-left: auto; width: 40px; height: 40px;
  border: 1px solid var(--line); background: #fff; border-radius: 10px;
  font-size: 18px; color: var(--ink-2); cursor: pointer;
}

/* ---------------- 公共区块 ---------------- */
.section { padding: 52px 0; }
.section-head { margin-bottom: 28px; }
.section-head.center { text-align: center; }
.section-tag {
  display: inline-block; font-size: 13px; font-weight: 700; color: var(--brand);
  background: var(--brand-soft); padding: 4px 12px; border-radius: 20px; margin-bottom: 12px;
  letter-spacing: .5px;
}
.section-title { font-size: 28px; font-weight: 800; margin: 0 0 10px; letter-spacing: .3px; }
.section-desc { color: var(--ink-2); font-size: 15px; margin: 0; max-width: 760px; }
.section-head.center .section-desc { margin: 0 auto; }

/* ---------------- 卡片 ---------------- */
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
}

/* ---------------- Hero ---------------- */
.hero {
  background:
    radial-gradient(900px 420px at 88% -8%, rgba(6, 182, 212, .30), transparent 62%),
    radial-gradient(760px 420px at 6% 8%, rgba(59, 130, 246, .42), transparent 60%),
    linear-gradient(150deg, #0b3bb0 0%, #1d4ed8 52%, #2f7ff0 100%);
  color: #fff;
  padding: 66px 0 60px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 46px 46px; pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.28);
  padding: 6px 15px; border-radius: 30px; font-size: 13px; margin-bottom: 18px;
}
.hero h1 { font-size: 40px; line-height: 1.25; margin: 0 0 16px; font-weight: 800; letter-spacing: .5px; }
.hero h1 span { color: #a5f3fc; }
.hero p.lead { font-size: 16px; color: rgba(255,255,255,.88); margin: 0 0 26px; max-width: 560px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 26px; }
.hero .btn-primary { background: #fff; color: var(--brand); box-shadow: 0 8px 20px rgba(0,0,0,.18); }
.hero .btn-ghost { background: rgba(255,255,255,.10); color: #fff; border-color: rgba(255,255,255,.42); }
.hero .btn-ghost:hover { background: rgba(255,255,255,.2); }
.hero-trust { display: flex; gap: 22px; flex-wrap: wrap; font-size: 13.5px; color: rgba(255,255,255,.9); }
.hero-trust span { display: flex; align-items: center; gap: 6px; }
.hero-trust span::before { content: "✓"; color: #a5f3fc; font-weight: 800; }

.hero-panel {
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.26);
  border-radius: 18px;
  padding: 22px;
  backdrop-filter: blur(6px);
}
.hero-panel h3 { margin: 0 0 16px; font-size: 15px; font-weight: 700; letter-spacing: .5px; }
.hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.hero-stat {
  background: rgba(255,255,255,.12); border-radius: 12px; padding: 14px 16px;
}
.hero-stat b { display: block; font-size: 24px; font-weight: 800; line-height: 1.2; }
.hero-stat small { font-size: 12.5px; color: rgba(255,255,255,.82); }

/* ---------------- 信任条 ---------------- */
.trust-bar {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; margin-top: -34px;
  position: relative; z-index: 5; box-shadow: var(--shadow-lg);
}
.trust-item { background: #fff; padding: 20px 18px; text-align: center; }
.trust-item .ti-icon { font-size: 22px; margin-bottom: 6px; }
.trust-item b { display: block; font-size: 15px; margin-bottom: 3px; }
.trust-item small { color: var(--ink-3); font-size: 13px; }

/* ---------------- 服务卡片 ---------------- */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.svc-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; display: flex; flex-direction: column; transition: .2s;
  box-shadow: var(--shadow); position: relative;
}
.svc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: #c9d8f7; }
.svc-top { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 12px; }
.svc-ico {
  width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0;
  background: var(--brand-soft); color: var(--brand);
  display: flex; align-items: center; justify-content: center; font-size: 21px;
}
.svc-cat { font-size: 12.5px; color: var(--ink-3); }
.svc-name { font-size: 17px; font-weight: 700; margin: 2px 0 0; line-height: 1.45; }
.svc-brief { color: var(--ink-2); font-size: 13.8px; flex: 1; margin: 0 0 16px; }
.svc-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.chip {
  font-size: 12.5px; padding: 3px 10px; border-radius: 20px;
  background: #f1f4fa; color: var(--ink-2);
}
.chip.ok { background: var(--ok-soft); color: #0a8a5f; }
.svc-price-row {
  display: flex; align-items: flex-end; justify-content: space-between;
  border-top: 1px dashed var(--line); padding-top: 14px; gap: 10px;
}
.price { color: #e0342b; font-weight: 800; }
.price .cur { font-size: 14px; }
.price .num { font-size: 25px; letter-spacing: -.5px; }
.price .unit { font-size: 12.5px; color: var(--ink-3); font-weight: 500; margin-left: 2px; }
.svc-sales { font-size: 12.5px; color: var(--ink-3); }
.badge-hot {
  position: absolute; top: 0; right: 0; background: linear-gradient(135deg,#ff6b35,#e0342b);
  color: #fff; font-size: 12px; padding: 4px 12px; border-radius: 0 var(--radius) 0 12px; font-weight: 600;
}

/* ---------------- 服务流程 ---------------- */
.flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.flow-step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 14px; text-align: center; box-shadow: var(--shadow); }
.flow-num {
  width: 34px; height: 34px; margin: 0 auto 10px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-2), var(--brand)); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 15px;
}
.flow-step b { display: block; font-size: 14.5px; margin-bottom: 4px; }
.flow-step small { color: var(--ink-3); font-size: 12.6px; line-height: 1.55; display: block; }

/* ---------------- 保障区 ---------------- */
.guarantee { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.g-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 28px; }
.g-item { display: flex; gap: 12px; }
.g-item .g-ico { font-size: 20px; line-height: 1.4; }
.g-item b { display: block; font-size: 15px; margin-bottom: 2px; }
.g-item p { margin: 0; color: var(--ink-2); font-size: 13.8px; }

/* ---------------- 页头（内页） ---------------- */
.page-hero {
  background: linear-gradient(135deg, #0b3bb0, #1d4ed8 60%, #2f7ff0);
  color: #fff; padding: 38px 0 34px;
}
.page-hero h1 { margin: 0 0 8px; font-size: 27px; font-weight: 800; }
.page-hero p { margin: 0; color: rgba(255,255,255,.85); font-size: 14.5px; }
.crumb { font-size: 13px; color: rgba(255,255,255,.75); margin-bottom: 12px; }
.crumb a { color: rgba(255,255,255,.9); }

/* ---------------- 筛选 ---------------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.filter-bar button {
  border: 1px solid var(--line); background: #fff; color: var(--ink-2);
  padding: 8px 18px; border-radius: 30px; font-size: 14px; cursor: pointer;
  font-family: inherit; font-weight: 500; transition: .18s;
}
.filter-bar button:hover { border-color: #c9d8f7; color: var(--brand); }
.filter-bar button.active {
  background: linear-gradient(135deg, var(--brand-2), var(--brand));
  border-color: transparent; color: #fff; font-weight: 600;
  box-shadow: 0 6px 14px rgba(29, 78, 216, .25);
}

/* ---------------- 详情页 ---------------- */
.detail-wrap { display: grid; grid-template-columns: 1.6fr .9fr; gap: 26px; align-items: start; }
.detail-main { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.detail-title { font-size: 25px; font-weight: 800; margin: 0 0 10px; line-height: 1.4; }
.detail-sub { color: var(--ink-2); margin: 0 0 18px; }
.detail-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.block-title { font-size: 17px; font-weight: 700; margin: 30px 0 14px; padding-left: 12px; border-left: 4px solid var(--brand); line-height: 1.2; }
.block-title:first-of-type { margin-top: 6px; }
.detail-main p { color: var(--ink-2); }
.dl-list { display: grid; gap: 10px; }
.dl-list li {
  background: #f8fafd; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 12px 16px; font-size: 14.2px; display: flex; gap: 10px; align-items: flex-start;
}
.dl-list li::before { content: "▸"; color: var(--brand); font-weight: 800; }
.dl-list li b { color: var(--ink); }

.spec-table { width: 100%; border-collapse: collapse; font-size: 14.2px; }
.spec-table th, .spec-table td { border: 1px solid var(--line); padding: 11px 14px; text-align: left; }
.spec-table th { background: #f8fafd; font-weight: 700; color: var(--ink); width: 130px; }
.spec-table td { color: var(--ink-2); }

/* 侧边购买卡 */
.buy-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow-lg); position: sticky; top: 84px;
}
.buy-card .price { color: #e0342b; }
.buy-card .price .num { font-size: 34px; }
.buy-price-box { background: linear-gradient(135deg,#fff5f4,#fff); border: 1px solid #ffd9d5; border-radius: 12px; padding: 16px; margin-bottom: 16px; }
.buy-price-box small { color: var(--ink-3); font-size: 12.5px; }
.buy-note { font-size: 13.2px; color: var(--ink-2); margin: 0 0 16px; }
.buy-list { display: grid; gap: 8px; margin-bottom: 18px; font-size: 13.5px; color: var(--ink-2); }
.buy-list li { display: flex; gap: 8px; }
.buy-list li::before { content: "✓"; color: var(--ok); font-weight: 800; }
.buy-card .mini { text-align: center; font-size: 12.5px; color: var(--ink-3); margin-top: 12px; }

/* ---------------- 表单 / 订单 ---------------- */
.order-wrap { display: grid; grid-template-columns: 1.55fr .95fr; gap: 26px; align-items: start; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.panel h2 { font-size: 19px; font-weight: 800; margin: 0 0 20px; }
.form-row { margin-bottom: 18px; }
.form-row label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; }
.form-row label .req { color: #e0342b; margin-left: 3px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 11px 14px; font-size: 14.5px; font-family: inherit; color: var(--ink);
  background: #fff; transition: .18s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none; border-color: var(--brand-2); box-shadow: 0 0 0 3px rgba(59,130,246,.14);
}
.form-row textarea { resize: vertical; min-height: 84px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
.form-hint { font-size: 12.5px; color: var(--ink-3); margin: 6px 0 0; }

.qty { display: flex; align-items: center; gap: 0; }
.qty button {
  width: 38px; height: 40px; border: 1px solid var(--line); background: #fff;
  font-size: 17px; cursor: pointer; color: var(--ink-2); font-family: inherit;
}
.qty button:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.qty button:last-child { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.qty input { width: 64px; text-align: center; border-radius: 0; border-left: none; border-right: none; }

.summary { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); position: sticky; top: 84px; }
.summary h3 { font-size: 17px; margin: 0 0 18px; font-weight: 800; }
.sum-row { display: flex; justify-content: space-between; gap: 12px; font-size: 14.2px; padding: 8px 0; color: var(--ink-2); }
.sum-row.total { border-top: 1px dashed var(--line); margin-top: 12px; padding-top: 16px; font-size: 15px; color: var(--ink); font-weight: 700; align-items: baseline; }
.sum-row.total .price .num { font-size: 27px; }
.sum-svc { display: flex; gap: 12px; padding-bottom: 16px; border-bottom: 1px dashed var(--line); margin-bottom: 14px; }
.sum-svc .ico { width: 44px; height: 44px; border-radius: 11px; background: var(--brand-soft); color: var(--brand); display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.sum-svc b { font-size: 14.8px; display: block; }
.sum-svc small { color: var(--ink-3); font-size: 12.5px; }

.pay-methods { display: grid; gap: 12px; }
.pay-method {
  display: flex; align-items: center; gap: 12px; border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 14px 16px; cursor: pointer; transition: .18s;
}
.pay-method:hover { border-color: #c9d8f7; }
.pay-method.active { border-color: var(--brand); background: var(--brand-soft); }
.pay-method .pm-ico { width: 34px; height: 34px; border-radius: 9px; background: #e8f9f2; display: flex; align-items: center; justify-content: center; font-size: 18px; }
.pay-method b { font-size: 14.5px; display: block; }
.pay-method small { color: var(--ink-3); font-size: 12.5px; }
.pay-method .pm-radio { margin-left: auto; width: 19px; height: 19px; border-radius: 50%; border: 2px solid #cbd5e1; }
.pay-method.active .pm-radio { border-color: var(--brand); background: radial-gradient(circle, var(--brand) 0 5px, #fff 6px 100%); }

/* ---------------- 售后 / 客服页 ---------------- */
.policy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.policy-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.policy-card .p-ico { width: 48px; height: 48px; border-radius: 13px; background: var(--brand-soft); color: var(--brand); display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 14px; }
.policy-card h3 { font-size: 16.5px; margin: 0 0 8px; font-weight: 700; }
.policy-card p { margin: 0; color: var(--ink-2); font-size: 13.8px; }

.timeline { display: grid; gap: 0; }
.tl-item { display: grid; grid-template-columns: 118px 1fr; gap: 18px; position: relative; padding-bottom: 24px; }
.tl-item::before { content: ""; position: absolute; left: 133px; top: 24px; bottom: 0; width: 2px; background: var(--line); }
.tl-item:last-child::before { display: none; }
.tl-time { text-align: right; font-weight: 700; color: var(--brand); font-size: 14px; padding-top: 2px; }
.tl-body { position: relative; padding-left: 26px; }
.tl-body::before { content: ""; position: absolute; left: -3px; top: 9px; width: 12px; height: 12px; border-radius: 50%; background: var(--brand); border: 3px solid #fff; box-shadow: 0 0 0 2px #dbe6fb; }
.tl-body b { display: block; font-size: 15.5px; margin-bottom: 3px; }
.tl-body p { margin: 0; color: var(--ink-2); font-size: 13.9px; }

.contact-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); text-align: center; }
.contact-card .cc-ico { font-size: 26px; margin-bottom: 8px; }
.contact-card b { display: block; font-size: 15px; margin-bottom: 4px; }
.contact-card span { color: var(--ink-2); font-size: 14px; font-weight: 600; word-break: break-all; }
.contact-card small { display: block; color: var(--ink-3); font-size: 12.5px; margin-top: 6px; }

/* ---------------- 关于我们 ---------------- */
.info-table { width: 100%; border-collapse: collapse; font-size: 14.3px; }
.info-table th, .info-table td { border-bottom: 1px solid var(--line); padding: 13px 14px; text-align: left; vertical-align: top; }
.info-table th { color: var(--ink-3); font-weight: 600; width: 170px; background: #f8fafd; }
.info-table td { color: var(--ink); }
.qual-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.qual-item { border: 1px dashed #c9d8f7; border-radius: var(--radius); padding: 20px; background: #fbfdff; }
.qual-item b { display: block; margin-bottom: 4px; font-size: 14.8px; }
.qual-item code { display: inline-block; font-size: 13px; color: var(--brand-deep); background: var(--brand-soft); padding: 2px 8px; border-radius: 6px; margin-top: 6px; font-family: ui-monospace, Menlo, Consolas, monospace; }
.qual-item small { display: block; color: var(--ink-3); font-size: 12.5px; margin-top: 8px; }

/* ---------------- 悬浮客服 ---------------- */
.float-cs { position: fixed; right: 22px; bottom: 26px; z-index: 80; display: grid; gap: 10px; }
.float-cs a {
  width: 52px; height: 52px; border-radius: 50%; background: #fff;
  border: 1px solid var(--line); box-shadow: var(--shadow-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 21px; transition: .18s; position: relative;
}
.float-cs a:hover { transform: translateY(-3px); }
.float-cs a.primary { background: linear-gradient(135deg, var(--brand-2), var(--brand)); color: #fff; border-color: transparent; }
.float-cs a .tip {
  position: absolute; right: 62px; top: 50%; transform: translateY(-50%);
  background: var(--ink); color: #fff; font-size: 12.5px; padding: 5px 11px;
  border-radius: 8px; white-space: nowrap; opacity: 0; pointer-events: none; transition: .18s;
}
.float-cs a:hover .tip { opacity: 1; }

/* ---------------- 底部 ---------------- */
.site-footer { background: #0f1b33; color: rgba(255,255,255,.72); padding: 42px 0 24px; margin-top: 60px; font-size: 13.6px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 30px; padding-bottom: 28px; border-bottom: 1px solid rgba(255,255,255,.12); }
.footer-grid h4 { color: #fff; font-size: 15px; margin: 0 0 14px; }
.footer-grid li { margin-bottom: 9px; }
.footer-grid a:hover { color: #fff; }
.footer-about p { margin: 0 0 10px; line-height: 1.75; }
.footer-bottom { padding-top: 20px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: rgba(255,255,255,.55); font-size: 12.8px; }
.footer-bottom a { color: rgba(255,255,255,.68); }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-logo strong { color: #fff; font-size: 16px; }

/* ---------------- 支付结果 ---------------- */
.pay-card { max-width: 560px; margin: 0 auto; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 34px; box-shadow: var(--shadow-lg); text-align: center; }
.pay-amount { font-size: 40px; font-weight: 800; color: #e0342b; letter-spacing: -1px; margin: 6px 0 4px; }
.pay-amount small { font-size: 20px; }
.pay-order { color: var(--ink-3); font-size: 13.4px; margin-bottom: 24px; }
.qr-box { width: 190px; height: 190px; margin: 0 auto 16px; border: 1px solid var(--line); border-radius: 12px; padding: 10px; background: #fff; }
.pay-tip { background: var(--warn-soft); border: 1px solid #ffe1ad; color: #92611a; border-radius: 10px; padding: 12px 16px; font-size: 13.4px; text-align: left; margin-top: 20px; }
.pay-steps { display: flex; justify-content: center; gap: 0; margin-bottom: 26px; }
.pay-step { flex: 1; text-align: center; font-size: 12.6px; color: var(--ink-3); position: relative; }
.pay-step .dot { width: 26px; height: 26px; border-radius: 50%; background: #eef1f7; color: var(--ink-3); display: flex; align-items: center; justify-content: center; margin: 0 auto 6px; font-size: 13px; font-weight: 700; }
.pay-step.done .dot { background: var(--ok); color: #fff; }
.pay-step.now .dot { background: var(--brand); color: #fff; }
.pay-step.now { color: var(--brand); font-weight: 700; }

/* ---------------- 提示 / 空态 ---------------- */
.notice { border-radius: var(--radius); padding: 16px 20px; font-size: 14px; border: 1px solid; margin-bottom: 22px; }
.notice.info { background: var(--brand-soft); border-color: #cfe0ff; color: #17408f; }
.notice.ok { background: var(--ok-soft); border-color: #b8ecd7; color: #0a7a55; }
.notice.warn { background: var(--warn-soft); border-color: #ffe1ad; color: #92611a; }
.notice b { font-weight: 700; }

.toast {
  position: fixed; left: 50%; top: 76px; transform: translate(-50%, -14px);
  background: var(--ink); color: #fff; padding: 11px 22px; border-radius: 10px;
  font-size: 14px; z-index: 200; opacity: 0; pointer-events: none; transition: .25s;
  box-shadow: var(--shadow-lg);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1000px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-panel { display: none; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .detail-wrap, .order-wrap { grid-template-columns: 1fr; }
  .buy-card, .summary { position: static; }
  .policy-grid, .contact-cards { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .trust-bar { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .main-nav {
    position: absolute; top: 66px; left: 0; right: 0; background: #fff;
    flex-direction: column; padding: 10px 18px 18px; gap: 2px;
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow-lg); display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 14px; }
  .nav-toggle { display: block; }
  .header-tel { display: none; }
  .header-actions .btn { display: none; }
  .hero h1 { font-size: 27px; }
  .hero p.lead { font-size: 15px; }
  .section { padding: 36px 0; }
  .section-title { font-size: 22px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .g-list, .form-grid, .qual-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 22px; }
  .tl-item { grid-template-columns: 84px 1fr; gap: 12px; }
  .tl-item::before { left: 99px; }
  .detail-main, .panel, .summary, .buy-card { padding: 20px; }
  .float-cs { right: 14px; bottom: 18px; }
  .float-cs a { width: 46px; height: 46px; font-size: 19px; }
}


/* ============================================================
   交付物在线预览（服务可体验）
   ============================================================ */
.pv-wrap {
  margin: 6px 0 26px;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
}
.pv-head {
  padding: 16px 20px;
  background: linear-gradient(135deg, #eef4ff, #f7faff);
  border-bottom: 1px solid var(--line);
}
.pv-title { font-weight: 700; font-size: 15px; color: #12305e; }
.pv-note { margin-top: 4px; font-size: 12.5px; color: var(--ink-2); line-height: 1.6; }

/* 切换按钮 */
.pv-switch { display: flex; flex-wrap: wrap; gap: 8px; padding: 14px 20px 0; }
.pv-tab {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-2);
  font-size: 13px;
  padding: 7px 15px;
  border-radius: 999px;
  cursor: pointer;
  transition: .18s;
  font-family: inherit;
}
.pv-tab:hover { border-color: #9cc0ff; color: #1d4ed8; }
.pv-tab.active { background: #1d4ed8; border-color: #1d4ed8; color: #fff; font-weight: 600; }

/* 指标卡 */
.pv-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 14px 20px 0;
}
.pv-metric {
  background: #f6f9ff;
  border: 1px solid #e3ecfb;
  border-radius: 10px;
  padding: 11px 13px;
}
.pv-metric small { display: block; font-size: 11.5px; color: var(--ink-2); }
.pv-metric b { display: block; font-size: 19px; color: #12305e; margin: 3px 0 2px; letter-spacing: -.3px; }
.pv-metric em { font-style: normal; font-size: 11px; color: #8794a8; }

/* 数据表格 */
.pv-table-box { padding: 14px 20px 0; overflow-x: auto; }
.pv-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.pv-table th {
  background: #f2f6fd;
  color: #34618f;
  font-weight: 600;
  text-align: left;
  padding: 9px 11px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.pv-table td {
  padding: 9px 11px;
  border-bottom: 1px solid #eef2f8;
  color: var(--ink-1);
  white-space: nowrap;
}
.pv-table tr:last-child td { border-bottom: none; }
.pv-table tr:hover td { background: #fbfdff; }
.pv-table td.pv-fixed { color: #0f7a4d; font-weight: 600; }

.pv-pane { padding: 0; }
.pv-legend { margin: 10px 20px 0; font-size: 12px; padding: 8px 12px; border-radius: 8px; }
.pv-legend.bad { background: #fff7ed; color: #9a5b12; border: 1px solid #fde3c2; }
.pv-legend.ok { background: #f0fdf6; color: #0f7a4d; border: 1px solid #c8f0da; }

/* 柱状图 */
.pv-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 168px;
  padding: 16px 20px 0;
}
.pv-bar-i { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; height: 100%; }
.pv-bar {
  width: 100%;
  max-width: 40px;
  border-radius: 5px 5px 2px 2px;
  background: linear-gradient(180deg, #4d8bf5, #1d4ed8);
  transition: height .4s ease;
  min-height: 3px;
}
.pv-bar-v { font-size: 10.5px; color: #6b7c93; margin-bottom: 3px; opacity: 0; transition: .2s; }
.pv-bar-i:hover .pv-bar-v { opacity: 1; }
.pv-bar-i:hover .pv-bar { filter: brightness(1.12); }
.pv-axis {
  display: flex;
  gap: 6px;
  padding: 6px 20px 16px;
  border-bottom: 1px solid #f0f4fa;
}
.pv-axis span { flex: 1; text-align: center; font-size: 10.5px; color: #96a3b6; }

/* 系统模块界面 mock */
.ui-mock { margin: 14px 20px 0; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.um-bar {
  display: flex; align-items: center; gap: 6px;
  background: #f4f7fc; padding: 9px 13px; border-bottom: 1px solid var(--line);
}
.um-dot { width: 9px; height: 9px; border-radius: 50%; background: #d6dfec; }
.um-dot:first-child { background: #ffbdbd; }
.um-dot:nth-child(2) { background: #ffe3a8; }
.um-dot:nth-child(3) { background: #b9e6c9; }
.um-bar em { font-style: normal; margin-left: 8px; font-size: 12.5px; color: #4a6483; font-weight: 600; }
.ui-mock .pv-table th { border-radius: 0; }
.ui-mock .pv-table { border: none; }
.pv-st { display: inline-block; font-size: 11.5px; padding: 2px 9px; border-radius: 999px; background: #eef2f8; color: #63748c; }
.pv-st.ok { background: #e6f8ee; color: #0f7a4d; }

/* 手机预览 */
.pv-phone-wrap { display: flex; justify-content: center; padding: 18px 20px 0; }
.pv-phone {
  width: 264px;
  border: 8px solid #22304a;
  border-radius: 26px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 10px 28px rgba(20,45,85,.14);
}
.ph-status {
  display: flex; justify-content: space-between;
  font-size: 10.5px; color: #22304a; padding: 7px 14px 3px; font-weight: 600;
}
.ph-nav {
  text-align: center; font-size: 13px; font-weight: 600; color: #12305e;
  padding: 6px 14px 11px; border-bottom: 1px solid #f0f4fa;
}
.ph-body { padding: 12px; min-height: 300px; background: #fafcff; }
.ph-banner {
  background: linear-gradient(135deg, #2f6cf0, #1d4ed8);
  color: #fff; border-radius: 9px; padding: 22px 14px;
  font-size: 13px; font-weight: 600; margin-bottom: 12px;
}
.ph-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 12px; }
.ph-gi {
  background: #fff; border: 1px solid #e8eef8; border-radius: 9px;
  padding: 13px 8px; text-align: center; font-size: 11.5px; color: #35507a;
}
.ph-gi span { display: block; color: #1d4ed8; margin-bottom: 3px; }
.ph-search {
  background: #fff; border: 1px solid #e8eef8; border-radius: 999px;
  padding: 8px 13px; font-size: 11.5px; color: #9aa8bb; margin-bottom: 12px;
}
.ph-list { display: flex; flex-direction: column; gap: 8px; }
.ph-li {
  display: flex; align-items: center; gap: 9px;
  background: #fff; border: 1px solid #e8eef8; border-radius: 9px;
  padding: 10px 11px; font-size: 11.5px; color: #35507a;
}
.ph-li b { margin-left: auto; color: #b7c3d4; }
.ph-li small { display: block; color: #98a6ba; font-size: 10px; margin-top: 2px; }
.ph-th {
  width: 26px; height: 26px; flex: none; border-radius: 6px;
  background: #eaf1fe; color: #1d4ed8; font-size: 10.5px;
  display: flex; align-items: center; justify-content: center; font-weight: 700;
}
.ph-kv { background: #fff; border: 1px solid #e8eef8; border-radius: 9px; padding: 4px 12px; margin-bottom: 12px; }
.ph-kvr { display: flex; justify-content: space-between; font-size: 11.5px; padding: 9px 0; border-bottom: 1px solid #f4f7fc; }
.ph-kvr:last-child { border-bottom: none; }
.ph-kvr span { color: #7b8a9e; }
.ph-kvr b { color: #22304a; }
.ph-btn {
  background: #1d4ed8; color: #fff; text-align: center;
  border-radius: 999px; padding: 11px; font-size: 12.5px; font-weight: 600;
}

/* 运维检查项 */
.pv-checks { padding: 14px 20px 0; display: flex; flex-direction: column; gap: 9px; }
.pv-check {
  display: flex; align-items: center; gap: 11px;
  background: #f8fbff; border: 1px solid #e6eefa; border-radius: 10px; padding: 11px 14px;
}
.pv-ck-ic {
  width: 22px; height: 22px; flex: none; border-radius: 50%;
  background: #e6f8ee; color: #0f7a4d; font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.pv-check b { display: block; font-size: 13px; color: #22304a; }
.pv-check small { color: #8794a8; font-size: 11.5px; }
.pv-ck-st { margin-left: auto; font-size: 11.5px; color: #0f7a4d; font-weight: 600; white-space: nowrap; }

/* 接口文档 */
.pv-api-line { display: flex; align-items: center; gap: 10px; padding: 14px 20px 0; flex-wrap: wrap; }
.pv-method {
  background: #e8f0ff; color: #1d4ed8; font-weight: 700;
  font-size: 11.5px; padding: 3px 9px; border-radius: 5px;
}
.pv-api-line code { font-size: 12.5px; color: #22304a; font-family: Consolas, Monaco, monospace; }
.pv-api-desc { padding: 8px 20px 0; margin: 0; font-size: 12.5px; color: var(--ink-2); }
.pv-api-sub { padding: 14px 20px 0; font-size: 12.5px; font-weight: 600; color: #34618f; }
.pv-code {
  margin: 12px 20px 0; padding: 14px 16px;
  background: #1e2b3d; color: #cfe2ff; border-radius: 10px;
  font-size: 12px; line-height: 1.75; overflow-x: auto;
  font-family: Consolas, Monaco, monospace;
}

/* 报告目录 */
.pv-outline { padding: 14px 20px 0; display: flex; flex-direction: column; gap: 8px; }
.pv-out-item { border: 1px solid #e6eefa; border-radius: 10px; overflow: hidden; background: #fff; }
.pv-out-h {
  display: flex; align-items: center; gap: 11px;
  padding: 12px 15px; cursor: pointer; user-select: none; transition: .18s;
}
.pv-out-h:hover { background: #f7faff; }
.pv-out-n {
  width: 22px; height: 22px; flex: none; border-radius: 6px;
  background: #eaf1fe; color: #1d4ed8; font-size: 11.5px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.pv-out-h b { font-size: 13px; color: #22304a; }
.pv-out-arrow { margin-left: auto; color: #a9b6c8; font-size: 12px; transition: .2s; }
.pv-out-item.open .pv-out-arrow { transform: rotate(180deg); }
.pv-out-b {
  display: none; padding: 0 15px 13px 48px;
  font-size: 12.5px; color: var(--ink-2); line-height: 1.75;
}
.pv-out-item.open .pv-out-b { display: block; }

/* 风险等级 */
.pv-lv { display: inline-block; font-size: 11.5px; font-weight: 600; padding: 2px 9px; border-radius: 999px; }
.pv-lv.lv-high { background: #fdeceb; color: #c0392b; }
.pv-lv.lv-mid { background: #fff5e5; color: #b87400; }
.pv-lv.lv-low { background: #eef2f8; color: #63748c; }

.pv-foot {
  margin: 16px 20px 0; padding: 12px 20px;
  border-top: 1px dashed var(--line);
  font-size: 12px; color: #8794a8; line-height: 1.7;
}

/* 响应式 */
@media (max-width: 760px) {
  .pv-metrics { grid-template-columns: 1fr 1fr; padding: 12px 14px 0; }
  .pv-switch { padding: 12px 14px 0; }
  .pv-table-box, .pv-chart, .pv-axis, .pv-checks, .pv-outline { padding-left: 14px; padding-right: 14px; }
  .ui-mock { margin-left: 14px; margin-right: 14px; }
  .pv-code { margin-left: 14px; margin-right: 14px; }
  .pv-foot { margin-left: 14px; margin-right: 14px; }
  .pv-chart { height: 130px; gap: 3px; }
  .pv-bar-v { display: none; }
  .pv-phone-wrap { padding: 14px; }
}


/* ============================================================
   支付确认弹层
   ============================================================ */
.pay-mask {
  position: fixed; inset: 0; z-index: 9998;
  background: rgba(18, 32, 58, .48);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: .22s;
  padding: 20px;
}
.pay-mask.show { opacity: 1; pointer-events: auto; }
.pay-dialog {
  width: 100%; max-width: 400px;
  background: #fff; border-radius: 16px;
  padding: 28px 26px 22px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(15, 35, 70, .22);
  transform: translateY(12px) scale(.97);
  transition: .24s;
}
.pay-mask.show .pay-dialog { transform: none; }
.pd-ic {
  width: 54px; height: 54px; margin: 0 auto 14px;
  border-radius: 50%; background: #eef4ff;
  display: flex; align-items: center; justify-content: center;
  font-size: 25px;
}
.pay-dialog h3 { margin: 0 0 10px; font-size: 17.5px; color: #12305e; }
.pay-dialog p { margin: 0 0 14px; font-size: 13.5px; color: var(--ink-2); line-height: 1.8; }
.pay-dialog p b { color: #22304a; }
.pd-amt { color: #c0392b !important; font-size: 16px; }
.pd-note {
  background: #f7faff; border: 1px solid #e4edfb; border-radius: 10px;
  padding: 13px 15px; font-size: 12.5px; color: #4a6483;
  line-height: 1.85; text-align: left; margin-bottom: 18px;
}
.pd-actions { display: flex; flex-direction: column; gap: 9px; }