/* ============================================================
   图市微帮 tswb.net — 主站样式
   ============================================================ */

:root {
  --ink: #0B2545;
  --ink-2: #163A6B;
  --brand: #F2762E;
  --brand-dark: #D85F17;
  --brand-soft: #FFF1E8;
  --teal: #0E8A6E;
  --teal-soft: #E6F5F1;
  --gold: #E9A93C;
  --blue-soft: #EAF1FA;

  --bg: #FFFFFF;
  --bg-soft: #F6F8FB;
  --bg-soft-2: #EFF3F8;
  --text: #1C2733;
  --muted: #5D6B7C;
  --line: #E5E9F0;

  --r-sm: 10px;
  --r: 16px;
  --r-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(11, 37, 69, .06);
  --shadow: 0 10px 34px rgba(11, 37, 69, .09);
  --shadow-lg: 0 22px 60px rgba(11, 37, 69, .14);

  --maxw: 1220px;
  --nav-h: 72px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- 通用文字 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .08em;
  color: var(--brand); text-transform: uppercase;
}
.eyebrow::before {
  content: ""; width: 26px; height: 2px; background: var(--brand); border-radius: 2px;
}
.sec-title {
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.3; font-weight: 800; color: var(--ink); letter-spacing: -.01em;
  margin: 14px 0 12px;
}
.sec-desc { color: var(--muted); font-size: 16.5px; max-width: 720px; }
.sec-head { margin-bottom: 52px; }
.sec-head.center { text-align: center; }
.sec-head.center .sec-desc { margin: 0 auto; }
.sec-head.center .eyebrow { justify-content: center; }

section { padding: 96px 0; position: relative; }
section.tight { padding: 72px 0; }
.soft { background: var(--bg-soft); }

/* ---------- 顶部条 ---------- */
.topbar {
  background: var(--ink); color: rgba(255, 255, 255, .78);
  font-size: 13px; padding: 8px 0;
}
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.topbar span { display: inline-flex; align-items: center; gap: 7px; }
.topbar svg { width: 14px; height: 14px; opacity: .8; }
.topbar b { color: #fff; font-weight: 600; }

/* ---------- 导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, border-color .3s;
}
.nav.stuck { box-shadow: 0 4px 24px rgba(11, 37, 69, .08); border-bottom-color: var(--line); }
.nav .wrap { height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.logo { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.logo-mark {
  width: 42px; height: 42px; border-radius: 12px; flex-shrink: 0;
  background: linear-gradient(140deg, var(--brand) 0%, #E8531F 55%, var(--ink-2) 140%);
  display: grid; place-items: center; color: #fff;
  font-weight: 800; font-size: 18px; letter-spacing: -.04em;
  box-shadow: 0 6px 16px rgba(242, 118, 46, .32);
}
.logo-txt strong { display: block; font-size: 19px; font-weight: 800; color: var(--ink); line-height: 1.2; letter-spacing: .01em; }
.logo-txt small { display: block; font-size: 10.5px; color: var(--muted); letter-spacing: .18em; text-transform: uppercase; }

.menu { display: flex; align-items: center; gap: 4px; }
.menu a {
  padding: 9px 14px; border-radius: 9px; font-size: 15px; font-weight: 500;
  color: var(--text); transition: background .2s, color .2s;
}
.menu a:hover { background: var(--bg-soft-2); color: var(--brand); }
.menu a.active { color: var(--brand); font-weight: 600; }

.nav-cta { display: flex; align-items: center; gap: 10px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 11px; font-size: 15px; font-weight: 600;
  transition: transform .2s, box-shadow .25s, background .25s, color .25s, border-color .25s;
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }
.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff; box-shadow: 0 8px 22px rgba(242, 118, 46, .3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(242, 118, 46, .4); }
.btn-ghost { border: 1.5px solid var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); background: var(--bg-soft); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: var(--ink-2); transform: translateY(-2px); }
.btn-lg { padding: 15px 30px; font-size: 16px; border-radius: 13px; }

.burger { display: none; width: 42px; height: 42px; border-radius: 10px; background: var(--bg-soft-2); place-items: center; }
.burger span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; transition: .3s; }
.burger span + span { margin-top: 4px; }
.burger.on span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger.on span:nth-child(2) { opacity: 0; }
.burger.on span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  padding: 78px 0 90px; position: relative; overflow: hidden;
  background:
    radial-gradient(900px 480px at 88% -8%, rgba(242, 118, 46, .12), transparent 62%),
    radial-gradient(760px 460px at 4% 12%, rgba(22, 58, 107, .09), transparent 60%),
    linear-gradient(180deg, #FBFCFE 0%, #FFFFFF 100%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(11, 37, 69, .055) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.7), transparent 72%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.7), transparent 72%);
}
.hero .wrap { position: relative; z-index: 2; display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }

.hero h1 {
  font-size: clamp(34px, 4.6vw, 58px); line-height: 1.18; font-weight: 800;
  color: var(--ink); letter-spacing: -.02em; margin: 18px 0 18px;
}
.hero h1 em {
  font-style: normal; position: relative; color: var(--brand);
  background: linear-gradient(100deg, var(--brand), #E8531F);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-lead { font-size: 17.5px; color: var(--muted); max-width: 560px; }
.hero-lead b { color: var(--ink); font-weight: 600; }

.pill-row { display: flex; flex-wrap: wrap; gap: 9px; margin: 24px 0 30px; }
.pill {
  font-size: 13.5px; padding: 6px 14px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line); color: var(--muted);
  box-shadow: var(--shadow-sm);
}
.pill.hot { background: var(--brand-soft); border-color: #FFD9C2; color: var(--brand-dark); font-weight: 600; }

.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats { display: flex; gap: 40px; margin-top: 44px; padding-top: 30px; border-top: 1px solid var(--line); flex-wrap: wrap; }
.hero-stats div strong {
  display: block; font-size: 30px; font-weight: 800; color: var(--ink); line-height: 1.1;
}
.hero-stats div strong i { font-style: normal; font-size: 17px; margin-left: 2px; color: var(--brand); }
.hero-stats div span { font-size: 13.5px; color: var(--muted); }

/* 小程序卡片 */
.mini-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 30px; box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.mini-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--brand), var(--gold), var(--teal));
}
.mini-card h3 { font-size: 18px; font-weight: 700; color: var(--ink); }
.mini-card .sub { font-size: 13.5px; color: var(--muted); margin-top: 4px; }
.qr-box {
  margin: 20px 0; padding: 18px; border-radius: var(--r); background: var(--bg-soft);
  display: flex; gap: 18px; align-items: center; border: 1px dashed #D7DEE9;
}
.qr-box .qr {
  width: 116px; height: 116px; flex-shrink: 0; background: #fff; border-radius: 10px;
  padding: 8px; box-shadow: var(--shadow-sm);
}
.qr-box .qr img { width: 100%; height: 100%; }
.qr-box p { font-size: 13.5px; color: var(--muted); }
.qr-box p b { display: block; color: var(--ink); font-size: 15px; margin-bottom: 3px; }

.mini-steps { display: grid; gap: 8px; }
.mini-steps li { display: flex; gap: 11px; align-items: flex-start; font-size: 14px; color: var(--muted); }
.mini-steps i {
  flex-shrink: 0; width: 21px; height: 21px; border-radius: 50%; background: var(--brand-soft);
  color: var(--brand-dark); font-size: 12px; font-weight: 700; font-style: normal;
  display: grid; place-items: center; margin-top: 3px;
}
.mini-steps li b { color: var(--ink); font-weight: 600; }

/* ---------- 平台矩阵条 ---------- */
.matrix { padding: 26px 0; background: var(--ink); }
.matrix .wrap { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.matrix-label { color: rgba(255, 255, 255, .6); font-size: 13px; letter-spacing: .1em; }
.matrix-list { display: flex; gap: 12px; flex-wrap: wrap; }
.matrix-list span {
  color: #fff; font-size: 14px; font-weight: 500; padding: 8px 16px; border-radius: 999px;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .14);
  display: inline-flex; align-items: center; gap: 7px;
}
.matrix-list span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }

/* ---------- 业务卡片网格 ---------- */
.biz-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.biz-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 28px 26px 26px; position: relative; overflow: hidden;
  transition: transform .3s cubic-bezier(.2,.7,.3,1), box-shadow .3s, border-color .3s;
  cursor: pointer; display: block;
}
.biz-card::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--brand), var(--gold)); transition: width .4s;
}
.biz-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: #DCE3EE; }
.biz-card:hover::after { width: 100%; }
.biz-ico {
  width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center;
  background: var(--blue-soft); color: var(--ink-2); margin-bottom: 18px;
}
.biz-ico svg { width: 25px; height: 25px; }
.biz-card.o .biz-ico { background: var(--brand-soft); color: var(--brand-dark); }
.biz-card.t .biz-ico { background: var(--teal-soft); color: var(--teal); }
.biz-card h3 { font-size: 18.5px; font-weight: 700; color: var(--ink); margin-bottom: 9px; }
.biz-card p { font-size: 14.5px; color: var(--muted); line-height: 1.72; }
.biz-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.biz-tags em {
  font-style: normal; font-size: 12px; color: var(--muted); background: var(--bg-soft-2);
  padding: 4px 10px; border-radius: 6px;
}
.biz-card .more {
  margin-top: 18px; font-size: 13.5px; font-weight: 600; color: var(--brand);
  display: inline-flex; align-items: center; gap: 6px;
}
.biz-card .more svg { width: 14px; height: 14px; transition: transform .25s; }
.biz-card:hover .more svg { transform: translateX(4px); }

/* ---------- 业务详解 Tabs ---------- */
.detail { background: var(--bg-soft); }
.detail-box {
  display: grid; grid-template-columns: 340px 1fr; gap: 0;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden; box-shadow: var(--shadow-sm);
}
.tab-list { background: var(--bg-soft); padding: 14px; display: grid; gap: 6px; align-content: start; }
.tab-btn {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-radius: 12px;
  text-align: left; font-size: 15px; font-weight: 600; color: var(--muted);
  transition: background .22s, color .22s; width: 100%;
}
.tab-btn .n {
  width: 26px; height: 26px; border-radius: 8px; background: #fff; color: var(--muted);
  display: grid; place-items: center; font-size: 12.5px; font-weight: 700; flex-shrink: 0;
  border: 1px solid var(--line);
}
.tab-btn:hover { background: #EFF3F8; color: var(--ink); }
.tab-btn.on { background: var(--ink); color: #fff; }
.tab-btn.on .n { background: var(--brand); color: #fff; border-color: transparent; }

.tab-panel { padding: 40px 44px; display: none; }
.tab-panel.on { display: block; animation: fadeUp .4s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.tab-panel h3 { font-size: 25px; font-weight: 800; color: var(--ink); margin-bottom: 6px; }
.tab-panel .lead { color: var(--brand); font-size: 15px; font-weight: 600; margin-bottom: 18px; }
.tab-panel > p { color: var(--muted); font-size: 15.5px; margin-bottom: 26px; }

.feat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 26px; margin-bottom: 26px; }
.feat { display: flex; gap: 12px; }
.feat i {
  flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%; margin-top: 3px;
  background: var(--teal-soft); color: var(--teal); display: grid; place-items: center;
}
.feat i svg { width: 13px; height: 13px; }
.feat div b { display: block; font-size: 15px; color: var(--ink); font-weight: 600; }
.feat div span { font-size: 14px; color: var(--muted); }

.meta-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; padding: 20px; background: var(--bg-soft); border-radius: var(--r); }
.meta-row div { font-size: 13.5px; }
.meta-row dt { color: var(--muted); font-size: 12.5px; margin-bottom: 4px; letter-spacing: .04em; }
.meta-row dd { color: var(--ink); font-weight: 600; }

/* ---------- 分类标签云 ---------- */
.cats { display: flex; flex-wrap: wrap; gap: 10px; }
.cat {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 13px 18px; font-size: 14.5px; color: var(--text); font-weight: 500;
  display: inline-flex; align-items: center; gap: 9px;
  transition: transform .22s, box-shadow .22s, border-color .22s, color .22s;
}
.cat:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--brand); color: var(--brand); }
.cat svg { width: 16px; height: 16px; color: var(--brand); }

.steps3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 46px; }
.step { position: relative; padding-top: 18px; }
.step .num {
  font-size: 46px; font-weight: 800; color: var(--brand); opacity: .16; line-height: 1; margin-bottom: -20px;
}
.step h4 { font-size: 17px; font-weight: 700; color: var(--ink); margin: 14px 0 6px; }
.step p { font-size: 14.5px; color: var(--muted); }

/* ---------- 深色企业服务区 ---------- */
.dark { background: var(--ink); color: #fff; position: relative; overflow: hidden; }
.dark::before {
  content: ""; position: absolute; top: -160px; right: -120px; width: 520px; height: 520px;
  border-radius: 50%; background: radial-gradient(circle, rgba(242,118,46,.22), transparent 68%);
}
.dark::after {
  content: ""; position: absolute; bottom: -200px; left: -140px; width: 480px; height: 480px;
  border-radius: 50%; background: radial-gradient(circle, rgba(14,138,110,.2), transparent 68%);
}
.dark .sec-title { color: #fff; }
.dark .sec-desc { color: rgba(255, 255, 255, .68); }
.dark .wrap { position: relative; z-index: 2; }

.dark-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.dcard {
  background: rgba(255, 255, 255, .055); border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--r-lg); padding: 34px 30px; transition: background .3s, transform .3s, border-color .3s;
}
.dcard:hover { background: rgba(255, 255, 255, .1); transform: translateY(-5px); border-color: rgba(255,255,255,.24); }
.dcard .ico {
  width: 52px; height: 52px; border-radius: 15px; display: grid; place-items: center; margin-bottom: 22px;
  background: linear-gradient(140deg, rgba(242,118,46,.9), rgba(216,95,23,.7));
}
.dcard .ico svg { width: 26px; height: 26px; color: #fff; }
.dcard:nth-child(2) .ico { background: linear-gradient(140deg, rgba(14,138,110,.9), rgba(10,105,83,.7)); }
.dcard:nth-child(3) .ico { background: linear-gradient(140deg, rgba(233,169,60,.95), rgba(200,135,25,.75)); }
.dcard h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.dcard .en { font-size: 11.5px; letter-spacing: .16em; color: rgba(255,255,255,.42); text-transform: uppercase; margin-bottom: 16px; }
.dcard p { font-size: 14.5px; color: rgba(255, 255, 255, .68); margin-bottom: 18px; }
.dcard ul { display: grid; gap: 9px; }
.dcard ul li { font-size: 14px; color: rgba(255, 255, 255, .82); display: flex; gap: 9px; }
.dcard ul li::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--brand); margin-top: 11px; flex-shrink: 0; }

/* ---------- 供应链 ---------- */
.chain { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; margin: 44px 0 0; }
.chain-item { position: relative; text-align: center; padding: 0 12px; }
.chain-item .c {
  width: 62px; height: 62px; margin: 0 auto 16px; border-radius: 50%;
  background: #fff; border: 2px solid var(--brand); color: var(--brand-dark);
  display: grid; place-items: center; font-size: 19px; font-weight: 800;
  box-shadow: 0 6px 18px rgba(242, 118, 46, .16);
}
.chain-item h4 { font-size: 15.5px; font-weight: 700; color: var(--ink); }
.chain-item p { font-size: 13.5px; color: var(--muted); margin-top: 4px; }
.chain-item:not(:last-child)::after {
  content: ""; position: absolute; top: 30px; left: calc(50% + 40px); right: calc(-50% + 40px);
  height: 2px; background: repeating-linear-gradient(90deg, var(--brand) 0 6px, transparent 6px 12px);
  opacity: .45;
}

.goods { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 40px; justify-content: center; }
.goods span {
  background: var(--brand-soft); color: var(--brand-dark); border: 1px solid #FFD9C2;
  padding: 8px 18px; border-radius: 999px; font-size: 14px; font-weight: 500;
}

/* ---------- 人力资源 ---------- */
.hr-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.hr-card {
  border: 1px solid var(--line); border-radius: var(--r-lg); padding: 34px 32px; background: #fff;
}
.hr-card h3 { font-size: 20px; color: var(--ink); font-weight: 700; margin-bottom: 4px; }
.hr-card .for { font-size: 13.5px; color: var(--brand); font-weight: 600; margin-bottom: 18px; }
.hr-card ul { display: grid; gap: 11px; }
.hr-card li { display: flex; gap: 11px; font-size: 14.8px; color: var(--muted); }
.hr-card li svg { width: 17px; height: 17px; color: var(--teal); flex-shrink: 0; margin-top: 4px; }
.hr-card li b { color: var(--ink); font-weight: 600; }

/* ---------- 关于 / 兵团精神 ---------- */
.about-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 60px; align-items: center; }
.spirit { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.spirit div {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 24px 22px; text-align: center;
}
.spirit div b { display: block; font-size: 19px; color: var(--ink); font-weight: 700; letter-spacing: .1em; }
.spirit div span { font-size: 13.5px; color: var(--muted); }
.about-txt p { color: var(--muted); font-size: 16px; margin-bottom: 18px; }
.about-txt p b { color: var(--ink); }
.check-list { display: grid; gap: 12px; margin-top: 22px; }
.check-list li { display: flex; gap: 11px; font-size: 15px; color: var(--text); }
.check-list svg { width: 19px; height: 19px; color: var(--teal); flex-shrink: 0; margin-top: 4px; }

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: f; }
.flow-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 28px 24px; position: relative;
}
.flow-item .i {
  width: 40px; height: 40px; border-radius: 12px; background: var(--ink); color: #fff;
  display: grid; place-items: center; font-weight: 800; font-size: 16px; margin-bottom: 16px;
}
.flow-item h4 { font-size: 16.5px; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.flow-item p { font-size: 14px; color: var(--muted); }

/* ---------- 联系 ---------- */
.contact {
  background: linear-gradient(130deg, var(--ink) 0%, #123A63 100%);
  color: #fff; position: relative; overflow: hidden;
}
.contact::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px); background-size: 30px 30px;
}
.contact .wrap { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr .85fr; gap: 56px; align-items: center; }
.contact h2 { font-size: clamp(26px, 3.2vw, 38px); font-weight: 800; line-height: 1.3; margin-bottom: 14px; }
.contact p { color: rgba(255, 255, 255, .72); font-size: 16px; margin-bottom: 30px; }
.contact-info { display: grid; gap: 14px; margin-bottom: 30px; }
.contact-info div { display: flex; gap: 13px; align-items: flex-start; }
.contact-info svg { width: 19px; height: 19px; color: var(--brand); flex-shrink: 0; margin-top: 4px; }
.contact-info b { display: block; font-size: 13px; color: rgba(255,255,255,.55); font-weight: 400; }
.contact-info span { font-size: 16px; font-weight: 600; }
.contact-card {
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--r-lg); padding: 32px; text-align: center;
}
.contact-card .qr { width: 168px; height: 168px; margin: 0 auto 18px; background: #fff; border-radius: 16px; padding: 10px; }
.contact-card .qr img { width: 100%; height: 100%; }
.contact-card h4 { font-size: 17px; font-weight: 700; }
.contact-card p { font-size: 13.5px; margin: 6px 0 0; }

/* ---------- 页脚 ---------- */
.footer { background: #071B33; color: rgba(255, 255, 255, .6); padding: 54px 0 26px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; margin-bottom: 38px; }
.footer h5 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer p { line-height: 1.85; }
.footer ul { display: grid; gap: 9px; }
.footer ul a { transition: color .2s; }
.footer ul a:hover { color: var(--brand); }
.footer .logo-txt strong { color: #fff; }
.footer .logo-txt small { color: rgba(255, 255, 255, .45); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 22px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px;
}
.footer-bottom a:hover { color: var(--brand); }
.footer-bottom a[href^="https"] { border-bottom: 1px solid rgba(255, 255, 255, .22); }
.footer-bottom a[href^="https"]:hover { border-bottom-color: var(--brand); }

/* ---------- 动画 ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .biz-grid { grid-template-columns: repeat(2, 1fr); }
  .hero .wrap { grid-template-columns: 1fr; gap: 44px; }
  .detail-box { grid-template-columns: 1fr; }
  .tab-list { grid-template-columns: repeat(2, 1fr); }
  .chain { grid-template-columns: repeat(3, 1fr); gap: 30px 0; }
  .chain-item:not(:last-child)::after { display: none; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact .wrap { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .menu {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    flex-direction: column; align-items: stretch; padding: 12px; gap: 2px;
  }
  .menu.open { display: flex; }
  .menu a { padding: 13px 16px; }
  .burger { display: grid; }
  .nav-cta .btn-ghost { display: none; }
  .dark-grid, .hr-grid, .steps3, .meta-row, .feat-grid { grid-template-columns: 1fr; }
  .tab-panel { padding: 30px 24px; }
  section { padding: 68px 0; }
  .hero { padding: 52px 0 64px; }
}

@media (max-width: 560px) {
  .biz-grid, .tab-list, .footer-grid { grid-template-columns: 1fr; }
  .chain, .flow { grid-template-columns: 1fr 1fr; }
  .hero-stats { gap: 24px; }
  .hero-stats div strong { font-size: 25px; }
  .wrap { padding: 0 18px; }
  .spirit { grid-template-columns: 1fr 1fr; }
}

/* ---------- 扫码关注 ---------- */
.qr-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.qr-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 28px 26px; display: flex; flex-direction: column; align-items: center; text-align: center;
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
.qr-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: #DCE3EE; }
.qr-img {
  width: 180px; height: 180px; padding: 12px; background: #fff;
  border-radius: 16px; box-shadow: var(--shadow-sm); border: 1px solid var(--line);
  display: grid; place-items: center; margin-bottom: 18px;
}
.qr-img img { width: 100%; height: 100%; object-fit: contain; }
.qr-meta h4 { font-size: 19px; font-weight: 700; color: var(--ink); margin: 4px 0 8px; }
.qr-meta p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }
.tag {
  display: inline-block; font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 999px;
  letter-spacing: .04em;
}
.tag-mp { background: #E6F7EE; color: #07C160; }
.tag-app { background: #E8F1FF; color: #2C7BFE; }
.tag-video { background: #FFEFE3; color: #FA7B17; }

@media (max-width: 860px) {
  .qr-grid { grid-template-columns: 1fr; }
  .qr-card { flex-direction: row; text-align: left; align-items: center; padding: 22px; }
  .qr-card .qr-img { width: 124px; height: 124px; margin: 0 18px 0 0; }
}
@media (max-width: 480px) {
  .qr-card { flex-direction: column; text-align: center; }
  .qr-card .qr-img { margin: 0 0 16px; }
}

/* ---------- 常见问题 FAQ ---------- */
.faq { max-width: 900px; margin: 0 auto; display: grid; gap: 12px; }
.faq details {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  overflow: hidden; transition: border-color .25s, box-shadow .25s;
}
.faq details:hover { border-color: #D5DEEA; }
.faq details[open] { border-color: #C9D6E6; box-shadow: var(--shadow-sm); }
.faq summary {
  list-style: none; cursor: pointer; padding: 20px 56px 20px 24px; position: relative;
  font-size: 17px; font-weight: 600; color: var(--ink); line-height: 1.6;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 24px; top: 27px;
  width: 9px; height: 9px; border-right: 2px solid var(--brand); border-bottom: 2px solid var(--brand);
  transform: rotate(45deg); transition: transform .25s;
}
.faq details[open] summary::after { transform: rotate(-135deg); top: 29px; }
.faq details[open] summary { color: var(--brand-dark); }
.faq-body { padding: 0 24px 22px; }
.faq-body p { font-size: 15.5px; color: var(--muted); line-height: 1.85; }
.faq-body b { color: var(--ink); font-weight: 600; }