/* ================================================================
   LAKESIDE ROBOT — 租赁运营商平台
   设计基调：石墨黑 + 铜金属 + 大面积留白，工业品牌感
   ================================================================ */
:root {
  --ink: #0d0f12;
  --ink-80: #1b1f25;
  --ink-60: #3b4149;
  --gray: #6b7280;
  --gray-2: #9aa1ab;
  --line: #e6e4df;
  --line-2: #f0eeea;
  --paper: #fbfaf8;
  --white: #fff;
  --copper: #b4623a;
  --copper-d: #8f4a2a;
  --copper-l: #f6ede7;
  --ok: #2f7a55;
  --warn: #b0771e;
  --radius: 4px;
  --sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }

.wrap { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.mono { font-family: var(--mono); letter-spacing: -.2px; }

/* ---------- 顶栏 ---------- */
.topbar {
  background: var(--ink); color: #b9bfc7; font-size: 12.5px;
  padding: 7px 0; letter-spacing: .2px;
}
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; }
.topbar b { color: #fff; font-weight: 500; }
.topbar .sep { margin: 0 12px; opacity: .3; }

header.nav {
  position: sticky; top: 0; z-index: 90;
  background: rgba(251,250,248,.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; height: 66px; gap: 40px; }
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-mark {
  width: 30px; height: 30px; position: relative;
  background: var(--ink);
  clip-path: polygon(0 0, 100% 0, 100% 62%, 62% 100%, 0 100%);
}
.brand-mark::after {
  content: ''; position: absolute; inset: 8px 8px 8px 8px;
  background: var(--copper);
  clip-path: polygon(0 0, 100% 0, 100% 55%, 55% 100%, 0 100%);
}
.brand-txt { font-size: 17px; font-weight: 600; letter-spacing: 2px; }
.brand-txt small { display: block; font-size: 9.5px; font-weight: 400; letter-spacing: 2.4px; color: var(--gray); margin-top: -2px; }

.nav-menu { display: flex; gap: 30px; font-size: 14.5px; }
.nav-menu a { color: var(--ink-60); position: relative; padding: 4px 0; }
.nav-menu a:hover, .nav-menu a.active { color: var(--ink); }
.nav-menu a.active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--copper);
}
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.btn-line {
  border: 1px solid var(--ink); padding: 9px 20px; font-size: 14px;
  border-radius: var(--radius); transition: .15s;
}
.btn-line:hover { background: var(--ink); color: #fff; }
.btn-solid {
  background: var(--ink); color: #fff; padding: 9px 20px;
  font-size: 14px; border-radius: var(--radius);
}
.btn-solid:hover { background: var(--copper); }
.nav-phone {
  font-family: var(--mono); font-size: 14px; color: var(--ink-60);
  text-decoration: none; white-space: nowrap;
}
.nav-phone:hover { color: var(--copper); }

/* ---------- 首页 Hero ---------- */
.hero { position: relative; background: var(--ink); color: #fff; overflow: hidden; }
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 56px 56px;
}
.hero-grid {
  position: relative; display: grid; grid-template-columns: 1fr 460px;
  gap: 40px; align-items: center; padding-top: 78px; padding-bottom: 64px;
}
.hero-label {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 12px; letter-spacing: 3px; color: var(--copper);
  text-transform: uppercase; margin-bottom: 26px;
}
.hero-label::before { content: ''; width: 26px; height: 1px; background: var(--copper); }
.hero h1 {
  font-size: 54px; line-height: 1.16; font-weight: 600; letter-spacing: -1px;
  margin-bottom: 22px;
}
.hero h1 em { font-style: normal; color: var(--copper); }
.hero p.lead {
  font-size: 16.5px; line-height: 1.85; color: #a8afb8; max-width: 540px;
}
.hero-actions { display: flex; gap: 12px; margin: 34px 0 40px; }
.btn-copper {
  background: var(--copper); color: #fff; padding: 13px 28px;
  font-size: 15px; border-radius: var(--radius); font-weight: 500;
}
.btn-copper:hover { background: var(--copper-d); }
.btn-ghost-w {
  border: 1px solid rgba(255,255,255,.28); color: #fff;
  padding: 13px 26px; font-size: 15px; border-radius: var(--radius);
}
.btn-ghost-w:hover { border-color: #fff; background: rgba(255,255,255,.06); }
.hero-metrics { display: flex; gap: 46px; border-top: 1px solid rgba(255,255,255,.13); padding-top: 26px; }
.hero-metrics .m b {
  display: block; font-size: 30px; font-weight: 600; letter-spacing: -1px;
  font-family: var(--mono);
}
.hero-metrics .m span { font-size: 12.5px; color: #8b929c; letter-spacing: .5px; }
.hero-visual { position: relative; display: flex; justify-content: center; align-items: flex-end; }
.hero-visual img { max-height: 430px; filter: drop-shadow(0 30px 50px rgba(0,0,0,.55)); }
.hero-visual .ring {
  position: absolute; width: 380px; height: 380px; border-radius: 50%;
  border: 1px solid rgba(180,98,58,.28); top: 40px;
}
.hero-visual .ring::after {
  content: ''; position: absolute; inset: 34px; border-radius: 50%;
  border: 1px dashed rgba(255,255,255,.09);
}
.hero-badge {
  position: absolute; left: -10px; bottom: 60px;
  background: rgba(255,255,255,.06); backdrop-filter: blur(8px);
  border-left: 2px solid var(--copper); padding: 12px 16px;
  font-size: 12px; line-height: 1.7; color: #cfd5dc;
}
.hero-badge b { display: block; font-size: 20px; color: #fff; font-family: var(--mono); }

/* ---------- 信任条 ---------- */
.trust { border-bottom: 1px solid var(--line); background: var(--white); }
.trust .wrap { display: flex; align-items: center; gap: 44px; padding: 22px 32px; flex-wrap: wrap; }
.trust .tl { font-size: 12px; letter-spacing: 1px; color: var(--gray-2); }
.trust .logos { display: flex; gap: 38px; flex-wrap: wrap; font-size: 14px; color: var(--ink-60); font-weight: 500; }
.trust .logos span { opacity: .72; }

/* ---------- 品类 ---------- */
.section { padding: 84px 0; }
.section.alt { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 44px; gap: 30px; }
.sec-kicker { font-size: 12px; letter-spacing: 3px; color: var(--copper); text-transform: uppercase; margin-bottom: 12px; }
.sec-head h2 { font-size: 34px; font-weight: 600; letter-spacing: -.6px; line-height: 1.25; }
.sec-head p { color: var(--gray); font-size: 14.5px; margin-top: 10px; max-width: 560px; }
.sec-link { font-size: 14px; color: var(--ink-60); white-space: nowrap; border-bottom: 1px solid var(--line); padding-bottom: 2px; }
.sec-link:hover { color: var(--copper); border-color: var(--copper); }

.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.cat-cell {
  background: var(--white); padding: 30px; min-height: 188px;
  display: flex; flex-direction: column; position: relative;
  transition: background .18s; cursor: pointer;
}
.cat-cell:hover { background: #fdfcfa; }
.cat-cell.on:hover { background: var(--ink); color: #fff; }
.cat-cell.on:hover .cat-en, .cat-cell.on:hover .cat-desc { color: #9aa1ab; }
.cat-cell.soon { background: #f7f6f3; cursor: default; }
.cat-ico { width: 34px; height: 34px; margin-bottom: 18px; color: var(--copper); }
.cat-cell.on:hover .cat-ico { color: var(--copper); }
.cat-cell.soon .cat-ico { color: var(--gray-2); }
.cat-name { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.cat-en { font-size: 11.5px; letter-spacing: 1.4px; color: var(--gray-2); text-transform: uppercase; }
.cat-desc { font-size: 13px; color: var(--gray); margin-top: 12px; line-height: 1.7; flex: 1; }
.cat-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12.5px; margin-top: 14px; color: var(--gray); }
.cat-cell.on:hover .cat-meta { color: #cfd5dc; }
.cat-flag { font-size: 11px; letter-spacing: .5px; padding: 2px 8px; border: 1px solid var(--line); border-radius: 2px; color: var(--gray-2); }
.cat-cell.on:hover .cat-flag { border-color: rgba(255,255,255,.25); color: #fff; }

/* ---------- 选型顾问 ---------- */
.advisor { background: var(--ink); color: #fff; }
.advisor .sec-kicker { color: var(--copper); }
.advisor h2 { color: #fff; }
.advisor-grid { display: grid; grid-template-columns: 380px 1fr; gap: 50px; align-items: start; }
.adv-form { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1); padding: 30px; }
.adv-field { margin-bottom: 20px; }
.adv-field label { display: block; font-size: 12.5px; color: #8b929c; letter-spacing: .6px; margin-bottom: 9px; }
.adv-field select, .adv-field input {
  width: 100%; background: rgba(0,0,0,.35); border: 1px solid rgba(255,255,255,.14);
  color: #fff; padding: 11px 13px; border-radius: var(--radius); font-size: 14px;
  appearance: none;
}
.adv-field select option { background: var(--ink-80); }
.adv-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.adv-chips button {
  border: 1px solid rgba(255,255,255,.16); color: #b9bfc7;
  padding: 7px 14px; font-size: 13px; border-radius: 2px;
}
.adv-chips button.on { background: var(--copper); border-color: var(--copper); color: #fff; }
.adv-result { min-height: 420px; }
.adv-empty {
  border: 1px dashed rgba(255,255,255,.16); height: 420px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: #6f7681; font-size: 14px; gap: 12px;
}
.adv-card {
  display: grid; grid-template-columns: 120px 1fr auto; gap: 24px;
  align-items: center; padding: 22px 0; border-bottom: 1px solid rgba(255,255,255,.1);
}
.adv-card:first-child { padding-top: 0; }
.adv-card img { max-height: 110px; object-fit: contain; margin: 0 auto; }
.adv-card h4 { font-size: 17px; font-weight: 600; margin-bottom: 5px; }
.adv-card .why { font-size: 13px; color: #8b929c; line-height: 1.75; }
.adv-card .why i { font-style: normal; color: var(--copper); margin-right: 6px; }
.adv-price { text-align: right; }
.adv-price b { display: block; font-size: 22px; font-family: var(--mono); font-weight: 600; }
.adv-price span { font-size: 12px; color: #8b929c; }
.adv-price .pick {
  margin-top: 10px; border: 1px solid rgba(255,255,255,.24); color: #fff;
  padding: 7px 16px; font-size: 13px; border-radius: 2px;
}
.adv-price .pick:hover { background: var(--copper); border-color: var(--copper); }
.match-bar { display: inline-block; font-size: 11.5px; color: var(--copper); border: 1px solid rgba(180,98,58,.4); padding: 1px 7px; margin-left: 8px; vertical-align: 3px; }

/* ---------- 产品列表 ---------- */
.filterbar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 18px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  margin-bottom: 34px;
}
.filterbar .grp { display: flex; gap: 6px; }
.chip {
  padding: 7px 15px; font-size: 13.5px; border: 1px solid var(--line);
  border-radius: 2px; color: var(--ink-60); background: var(--white);
}
.chip.on { background: var(--ink); color: #fff; border-color: var(--ink); }
.chip em { font-style: normal; font-family: var(--mono); font-size: 11px; margin-left: 6px; opacity: .5; }
.chip.on em { opacity: .7; }
.filterbar select {
  margin-left: auto; border: 1px solid var(--line); padding: 8px 12px;
  font-size: 13.5px; background: var(--white); border-radius: 2px;
}

.plist { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.pcard {
  background: var(--white); border: 1px solid var(--line);
  display: flex; flex-direction: column; position: relative;
  transition: box-shadow .2s, border-color .2s;
}
.pcard:hover { border-color: #cfcdc7; box-shadow: 0 16px 40px -20px rgba(13,15,18,.28); }
.pcard-top { padding: 26px 24px 0; position: relative; }
.tier-badge {
  position: absolute; top: 16px; right: 16px; font-size: 10.5px;
  letter-spacing: 1px; padding: 3px 8px; border: 1px solid var(--line);
  color: var(--gray); border-radius: 2px; text-transform: uppercase;
}
.tier-badge.flagship { border-color: var(--copper); color: var(--copper); }
.pcard-img { height: 216px; display: flex; align-items: center; justify-content: center; }
.pcard-img img { max-height: 200px; object-fit: contain; }
.pcard-body { padding: 20px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.pcard h3 { font-size: 18px; font-weight: 600; letter-spacing: -.2px; }
.pcard .model { font-family: var(--mono); font-size: 11.5px; color: var(--gray-2); margin-top: 3px; }
.pcard .tagline { font-size: 13.5px; color: var(--gray); margin: 12px 0 16px; line-height: 1.7; flex: 1; }
.spec-pills { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.spec-pills span {
  font-size: 11.5px; border: 1px solid var(--line-2); background: var(--paper);
  padding: 3px 8px; border-radius: 2px; color: var(--ink-60);
}
.pcard-price { display: flex; align-items: flex-end; justify-content: space-between; padding-top: 16px; border-top: 1px solid var(--line-2); }
.pcard-price .d { font-family: var(--mono); font-size: 26px; font-weight: 600; letter-spacing: -1px; }
.pcard-price .d small { font-size: 12px; font-weight: 400; color: var(--gray); letter-spacing: 0; }
.pcard-price .l { font-size: 11.5px; color: var(--gray-2); text-align: right; line-height: 1.6; }
.pcard-foot { display: flex; gap: 8px; margin-top: 16px; }
.pcard-foot .go {
  flex: 1; background: var(--ink); color: #fff; padding: 11px; font-size: 14px; border-radius: 2px;
}
.pcard-foot .go:hover { background: var(--copper); }
.pcard-foot .ghost { border: 1px solid var(--line); padding: 11px 14px; font-size: 13px; border-radius: 2px; color: var(--ink-60); }
.pcard-foot .ghost:hover { border-color: var(--ink); color: var(--ink); }
.stock-dot { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ok); }
.stock-dot::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--ok); }
.stock-dot.none { color: var(--gray-2); }
.stock-dot.none::before { background: var(--gray-2); }

/* ---------- 方案包 ---------- */
.pkgs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.pkg {
  border: 1px solid var(--line); background: var(--white); padding: 32px;
  display: flex; flex-direction: column; position: relative;
}
.pkg.hi { border-color: var(--ink); }
.pkg-badge {
  position: absolute; top: -1px; right: 24px; background: var(--ink); color: #fff;
  font-size: 11px; letter-spacing: 1px; padding: 4px 12px;
}
.pkg h3 { font-size: 21px; font-weight: 600; margin-bottom: 6px; }
.pkg .sub { color: var(--gray); font-size: 13.5px; }
.pkg ul { list-style: none; margin: 24px 0; flex: 1; }
.pkg li { font-size: 13.5px; color: var(--ink-60); padding: 8px 0; border-bottom: 1px dashed var(--line-2); display: flex; gap: 10px; }
.pkg li::before { content: '—'; color: var(--copper); }
.pkg-foot { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; }
.pkg-price b { font-family: var(--mono); font-size: 28px; font-weight: 600; letter-spacing: -1px; }
.pkg-price span { font-size: 12.5px; color: var(--gray); }
.pkg-foot button { background: var(--ink); color: #fff; padding: 11px 22px; font-size: 14px; border-radius: 2px; }
.pkg-foot button:hover { background: var(--copper); }

/* ---------- 开发能力 ---------- */
.dev { background: var(--ink); color: #fff; }
.dev-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.dev h2 { color: #fff; }
.dev-lead { color: #a8afb8; font-size: 15px; line-height: 1.9; margin: 18px 0 30px; }
.dev-list { display: grid; gap: 1px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.1); }
.dev-item { background: var(--ink); padding: 18px 20px; display: flex; gap: 16px; align-items: flex-start; }
.dev-item .n { font-family: var(--mono); font-size: 12px; color: var(--copper); padding-top: 2px; }
.dev-item h4 { font-size: 14.5px; font-weight: 500; margin-bottom: 4px; }
.dev-item p { font-size: 12.5px; color: #8b929c; line-height: 1.7; }
.code-box { background: #08090b; border: 1px solid rgba(255,255,255,.1); border-radius: 3px; overflow: hidden; }
.code-bar { display: flex; align-items: center; gap: 6px; padding: 11px 14px; border-bottom: 1px solid rgba(255,255,255,.08); }
.code-bar i { width: 8px; height: 8px; border-radius: 50%; background: #2c3138; }
.code-bar span { margin-left: 8px; font-family: var(--mono); font-size: 11.5px; color: #6f7681; }
.code-box pre { padding: 20px; font-family: var(--mono); font-size: 12.5px; line-height: 1.85; color: #c7ccd3; overflow-x: auto; }
.code-box .k { color: #b4623a; }
.code-box .s { color: #7ea88a; }
.code-box .c { color: #565d66; }

/* ---------- 服务保障 ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.svc { background: var(--white); padding: 32px 26px; }
.svc .num { font-family: var(--mono); font-size: 12px; color: var(--copper); margin-bottom: 18px; }
.svc h4 { font-size: 16px; font-weight: 600; margin-bottom: 10px; }
.svc p { font-size: 13px; color: var(--gray); line-height: 1.75; }

/* ---------- CTA ---------- */
.cta { background: var(--copper); color: #fff; padding: 64px 0; }
.cta .wrap { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.cta h2 { font-size: 32px; font-weight: 600; letter-spacing: -.6px; }
.cta p { opacity: .85; margin-top: 10px; font-size: 14.5px; }
.cta .acts { display: flex; gap: 12px; }
.cta .w { background: #fff; color: var(--copper-d); padding: 13px 26px; font-size: 15px; border-radius: 2px; }
.cta .o { border: 1px solid rgba(255,255,255,.6); padding: 13px 26px; font-size: 15px; border-radius: 2px; }

/* ---------- Footer ---------- */
footer { background: var(--ink); color: #8b929c; padding: 56px 0 28px; font-size: 13px; }
.f-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1); }
.f-brand .brand-txt { color: #fff; }
.f-brand p { margin-top: 16px; line-height: 1.9; max-width: 300px; font-size: 12.5px; }
.f-col h5 { color: #fff; font-size: 13px; font-weight: 500; margin-bottom: 16px; letter-spacing: .5px; }
.f-col a { display: block; padding: 5px 0; font-size: 12.5px; }
.f-col a:hover { color: #fff; }
.f-bottom { display: flex; justify-content: space-between; padding-top: 22px; font-size: 11.5px; color: #5d646d; flex-wrap: wrap; gap: 10px; }

/* ---------- 弹层 ---------- */
.overlay {
  position: fixed; inset: 0; background: rgba(9,11,14,.62); z-index: 200;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  backdrop-filter: blur(2px);
}
.overlay[hidden] { display: none; }
.sheet {
  background: var(--paper); width: 100%; max-width: 940px; max-height: 90vh;
  overflow: auto; position: relative; border-radius: 3px;
}
.sheet-close {
  position: sticky; top: 0; float: right; margin: 12px 12px 0 0; z-index: 3;
  width: 34px; height: 34px; background: var(--white); border: 1px solid var(--line);
  border-radius: 50%; font-size: 18px; color: var(--gray);
}
.sheet-close:hover { color: var(--ink); border-color: var(--ink); }
.sheet-body { padding: 34px 40px 40px; }

.detail-top { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.detail-img { background: var(--white); border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; padding: 30px; min-height: 320px; }
.detail-img img { max-height: 280px; object-fit: contain; }
.detail-info h2 { font-size: 26px; font-weight: 600; letter-spacing: -.4px; }
.detail-info .mod { font-family: var(--mono); font-size: 12px; color: var(--gray-2); margin: 4px 0 14px; }
.detail-info .tl { color: var(--gray); font-size: 14px; line-height: 1.8; margin-bottom: 20px; }
.kv-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-bottom: 20px; }
.kv { background: var(--white); padding: 12px 14px; }
.kv span { display: block; font-size: 11px; color: var(--gray-2); margin-bottom: 3px; }
.kv b { font-size: 14px; font-weight: 500; font-family: var(--mono); }
.ladder { width: 100%; border-collapse: collapse; font-size: 13px; margin-bottom: 20px; }
.ladder th, .ladder td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line-2); }
.ladder th { font-size: 11.5px; color: var(--gray-2); font-weight: 400; letter-spacing: .5px; }
.ladder td.n { font-family: var(--mono); font-weight: 500; }
.detail-specs { margin-top: 30px; border-top: 1px solid var(--line); padding-top: 24px; }
.detail-specs h4 { font-size: 14px; margin-bottom: 14px; letter-spacing: .5px; }
.detail-specs li { list-style: none; font-size: 13px; color: var(--ink-60); line-height: 2; display: flex; gap: 10px; }
.detail-specs li::before { content: '·'; color: var(--copper); }
.detail-specs .remark-bar {
  font-size: 12.5px; color: var(--copper); background: rgba(180, 98, 58, .07);
  border-left: 2px solid var(--copper); padding: 9px 12px; margin-bottom: 16px;
  letter-spacing: .2px;
}

/* 下单面板 */
.order-panel { background: var(--white); border: 1px solid var(--line); padding: 26px; margin-top: 30px; }
.op-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.field label { display: block; font-size: 11.5px; color: var(--gray-2); letter-spacing: .5px; margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--line); padding: 11px 12px; font-size: 14px;
  border-radius: 2px; background: var(--paper);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--copper); }
.calc { background: var(--paper); border: 1px solid var(--line); padding: 18px; margin: 18px 0; }
.calc .r { display: flex; justify-content: space-between; font-size: 13.5px; padding: 5px 0; color: var(--ink-60); }
.calc .r b { font-family: var(--mono); color: var(--ink); font-weight: 500; }
.calc .r.tot { border-top: 1px solid var(--line); margin-top: 8px; padding-top: 12px; font-size: 15px; color: var(--ink); font-weight: 500; }
.calc .r.tot b { font-size: 22px; letter-spacing: -1px; }
.calc .tag { font-size: 11px; background: var(--copper-l); color: var(--copper-d); padding: 1px 7px; margin-left: 8px; border-radius: 2px; }
.pay-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 16px; }
.pay-opt {
  border: 1px solid var(--line); padding: 12px 14px; display: flex; align-items: center; gap: 10px;
  font-size: 14px; cursor: pointer; background: var(--paper);
}
.pay-opt.on { border-color: var(--ink); background: var(--white); }
.pay-opt .pdot { width: 14px; height: 14px; border: 1px solid var(--gray-2); border-radius: 50%; }
.pay-opt.on .pdot { border: 4px solid var(--ink); }
.submit {
  width: 100%; background: var(--ink); color: #fff; padding: 15px; font-size: 15.5px;
  border-radius: 2px; font-weight: 500;
}
.submit:hover { background: var(--copper); }
.submit:disabled { opacity: .5; cursor: default; }
.err-msg { color: #b23b3b; font-size: 13px; min-height: 18px; }
.hint { font-size: 12px; color: var(--gray-2); line-height: 1.7; margin-top: 10px; }

/* 成功页 */
.done { text-align: center; padding: 44px 20px; }
.done .check {
  width: 62px; height: 62px; margin: 0 auto 22px; border-radius: 50%;
  background: var(--ok); color: #fff; font-size: 30px; line-height: 62px;
}
.done h3 { font-size: 24px; font-weight: 600; margin-bottom: 10px; }
.done p { color: var(--gray); font-size: 14px; line-height: 1.9; }
.done .no { font-family: var(--mono); font-size: 17px; color: var(--copper); display: block; margin: 14px 0; }

/* 订单追踪 */
.track { display: flex; gap: 0; margin: 26px 0; }
.track-step { flex: 1; text-align: center; position: relative; font-size: 12px; color: var(--gray-2); }
.track-step::before {
  content: ''; display: block; width: 11px; height: 11px; border-radius: 50%;
  background: var(--line); margin: 0 auto 9px; position: relative; z-index: 2;
}
.track-step::after {
  content: ''; position: absolute; top: 5px; left: 0; right: 50%; height: 1px; background: var(--line);
}
.track-step:first-child::after { display: none; }
.track-step.done { color: var(--ink); }
.track-step.done::before { background: var(--copper); }
.track-step.done::after { background: var(--copper); }

/* 通用表格 */
.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th { text-align: left; font-size: 11.5px; color: var(--gray-2); font-weight: 400; letter-spacing: .5px; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.table td { padding: 13px 12px; border-bottom: 1px solid var(--line-2); }
.table tr:hover td { background: var(--white); }
.status-tag { font-size: 11.5px; padding: 2px 8px; border: 1px solid var(--line); border-radius: 2px; color: var(--gray); }
.status-tag.paid { border-color: #cfe3d8; color: var(--ok); background: #f2f9f5; }
.status-tag.renting { border-color: var(--copper); color: var(--copper); }

/* 表格横向滚动容器（宽屏无副作用） */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-wrap .table { min-width: 560px; }

/* 滚动进度条（移动端阅读体验，由 nav.js 注入） */
.scroll-prog {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: var(--copper); z-index: 200; pointer-events: none;
  transition: width .1s linear;
}

/* 移动端导航按钮（桌面隐藏，由 nav.js 注入 DOM） */
.nav-toggle { display: none; }
.nav-mask { display: none; }

/* 响应式 */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .advisor-grid, .dev-grid { grid-template-columns: 1fr; gap: 34px; }
  .plist, .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ----------平板 / 手机：导航改为抽屉 ---------- */
@media (max-width: 900px) {
  /* 汉堡按钮 */
  .nav-toggle {
    display: flex; flex-direction: column; justify-content: center;
    gap: 5px; width: 44px; height: 44px; margin-left: auto;
    margin-right: -10px; flex-shrink: 0;
  }
  .nav-toggle span {
    display: block; width: 21px; height: 2px; margin: 0 auto;
    background: var(--ink); border-radius: 2px;
    transition: transform .28s cubic-bezier(.4,0,.2,1), opacity .2s;
  }
  body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* 抽屉菜单：从右侧滑出 */
  .nav-menu {
    display: flex; flex-direction: column; gap: 0;
    position: fixed; top: 0; right: 0; bottom: 0; width: 78vw; max-width: 320px;
    background: var(--paper); border-left: 1px solid var(--line);
    padding: 84px 0 24px; overflow-y: auto;
    transform: translateX(100%); transition: transform .3s cubic-bezier(.4,0,.2,1);
    z-index: 120; box-shadow: -8px 0 30px rgba(0,0,0,.08);
    visibility: hidden;
  }
  body.nav-open .nav-menu { transform: translateX(0); visibility: visible; }
  .nav-menu a {
    padding: 15px 26px; font-size: 16px; color: var(--ink);
    border-bottom: 1px solid var(--line-2);
  }
  .nav-menu a::after { display: none !important; }
  .nav-menu a.active { background: var(--copper-l); color: var(--copper); font-weight: 600; }

  /* 遮罩 */
  .nav-mask {
    display: block; position: fixed; inset: 0; background: rgba(13,15,18,.42);
    opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; z-index: 110;
    -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px);
  }
  body.nav-open .nav-mask { opacity: 1; visibility: visible; }
  body.nav-open { overflow: hidden; }

  /* 顶栏精简：只保留工作时间 + 电话 */
  .topbar { font-size: 12px; padding: 6px 0; }
  .topbar .wrap > div:last-child { display: none; }
  .topbar .sep { margin: 0 8px; }

  /* 导航右侧：电话变成可点按钮，CTA 保留 */
  .nav-inner { height: 60px; gap: 12px; }
  /* 关键：backdrop-filter 会为 fixed 子元素创建包含块，
     导致抽屉菜单高度被限制为 header 高度，移动端必须移除 */
  header.nav { backdrop-filter: none; -webkit-backdrop-filter: none; }
  .nav-phone {
    display: inline-flex; align-items: center; height: 34px; padding: 0 12px;
    border: 1px solid var(--line); border-radius: 17px; font-size: 12.5px; color: var(--ink-60);
  }
  .nav-right .btn-line { display: none; }
}

@media (max-width: 720px) {
  .wrap { padding: 0 18px; }

  /* 安全区适配（刘海屏 / 底部手势条） */
  .topbar { padding-top: calc(6px + env(safe-area-inset-top)); }
  header.nav { padding-top: env(safe-area-inset-top); background: rgba(251,250,248,.97); }
  .cta, .f-grid, .trust { padding-bottom: calc(24px + env(safe-area-inset-bottom)); }
  body { padding-bottom: env(safe-area-inset-bottom); }

  /* hero */
  .hero h1 { font-size: 30px; line-height: 1.28; letter-spacing: -.4px; }
  .hero-label { font-size: 11.5px; }
  .hero-grid { padding-top: 40px; padding-bottom: 34px; }
  .hero p.lead { font-size: 14.5px; }
  .hero-actions { flex-direction: column; gap: 10px; margin: 26px 0 30px; }
  .hero-actions a { width: 100%; height: 48px; display: inline-flex; align-items: center; justify-content: center; }
  /* 数据带2×2 网格 */
  .hero-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 14px; padding-top: 22px; }
  .hero-metrics .m b { font-size: 22px; display: block; }
  .hero-metrics .m span { font-size: 11.5px; }

  /* 通用区块 */
  .section { padding: 46px 0; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 12px; margin-bottom: 28px; }
  .sec-head h2 { font-size: 24px; }
  .sec-head p { font-size: 13.5px; }

  /* 栅格全部单列 */
  .plist, .cat-grid, .pkgs, .svc-grid, .advisor-grid, .dev-grid, .detail-top { grid-template-columns: 1fr; }
  .cat-grid { gap: 1px; }

  /* 触控尺寸：所有可点元素 ≥44px */
  .btn-line, .btn-solid, .btn-copper, .btn-ghost-w { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; padding: 0 20px; }
  .cta .wrap { flex-direction: column; align-items: flex-start; gap: 18px; }
  .cta .wrap a { width: 100%; white-space: nowrap; }
  /* 覆盖各页内联 h1 固定字号（内联样式需 !important） */
  h1 { font-size: 26px !important; line-height: 1.3; letter-spacing: -.4px; }
  h2 { font-size: 21px !important; }
  .sec-head h2 { font-size: 24px !important; }

  /* 表格：强制横向滚动（不撑破页面） */
  .table-wrap {
    overflow-x: auto; -webkit-overflow-scrolling: touch;
    max-width: 100%; min-width: 0;
  }
  .table-wrap .table { min-width: 520px; font-size: 13px; }
  .table th, .table td { padding: 11px 10px; }
  .table-wrap::after {
    content: '← 左右滑动查看完整表格 →'; display: block; text-align: center;
    font-size: 11.5px; color: var(--gray-2); padding: 10px 0 2px;
  }

  /* 表单：16px 防 iOS 自动缩放 */
  input, select, textarea { font-size: 16px !important; }
  .adv-field select, .adv-field input { height: 48px; }
  .adv-form { padding: 22px 18px; }
  .adv-field { margin-bottom: 16px; }
  .adv-result { min-height: 0; }
  .adv-card { grid-template-columns: 76px 1fr; gap: 14px; }
  .adv-card img { max-height: 76px; }
  .adv-price { grid-column: 1 / -1; text-align: left; display: flex; align-items: center; gap: 14px; }
  .adv-price b { display: inline; font-size: 20px; }

  /* 详情 / 结算 / 订单 */
  .sheet-body { padding: 20px 16px 28px; }
  .op-row, .pay-opts { grid-template-columns: 1fr; }
  .f-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .trust .wrap { gap: 14px; }
  .trust .logos { gap: 16px; font-size: 12px; flex-wrap: wrap; justify-content: center; }
  .sheet-actions .btn-solid, .sheet-actions .btn-line { width: 100%; }

  /* 减少动画（无障碍） */
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media (max-width: 380px) {
  h1 { font-size: 23px !important; }
  h2, .sec-head h2 { font-size: 19px !important; }
  .f-grid { grid-template-columns: 1fr; }
  .hero-metrics { grid-template-columns: 1fr 1fr; }
  .nav-phone { display: none; }
}

/* ========== 2026-11-01 首页热门机型 + 机型库搜索 + hero 视频 ========== */
.topbar a { color: inherit; }
.topbar a:hover { color: #fff; }
.pmini-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.pmini { background: #fff; border: 1px solid var(--line); cursor: pointer; transition: transform .18s ease, box-shadow .18s ease; }
.pmini:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(13,15,18,.09); }
.pmini-img { height: 175px; background: #f7f6f3; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.pmini-img img { max-height: 155px; max-width: 82%; object-fit: contain; }
.pmini-body { padding: 14px 16px 16px; }
.pmini-body h4 { font-size: 15px; font-weight: 600; margin: 0 0 8px; letter-spacing: -.2px; }
.pmini-price { font-family: var(--mono); font-size: 17px; color: var(--copper); margin-top: 8px; }
.pmini-price small { color: var(--gray-2); font-size: 12px; font-family: inherit; }
.searchbar { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.fleet-search {
  width: 320px; padding: 10px 16px; font-size: 14.5px; border: 1px solid var(--line);
  background: #fff; border-radius: 2px; color: var(--ink);
}
.fleet-search:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(13,15,18,.06); }
.search-hint { color: var(--gray-2); font-size: 13px; }
.hero-video {
  max-height: 430px; max-width: 100%; border-radius: 8px;
  filter: drop-shadow(0 30px 50px rgba(0,0,0,.55)); background: #000;
}
@media (max-width: 980px) {
  .pmini-grid { grid-template-columns: repeat(2, 1fr); }
  .fleet-search { width: 100%; }
}

/* ---- home search ---- */
.home-search{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.home-search .fleet-search{flex:1 1 260px;max-width:420px}
@media(max-width:600px){.home-search{flex-direction:column;align-items:stretch}.home-search .fleet-search{max-width:none}}

/* ---- fleet picks carousel ---- */
.fleet-picks{padding-top:56px}
.pcarousel{position:relative}
.pmini-track{display:flex;flex-flow:column wrap;align-content:flex-start;gap:20px;height:636px;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scroll-behavior:smooth;scrollbar-width:none;-ms-overflow-style:none;padding:4px 2px}
.pmini-track::-webkit-scrollbar{display:none}
.pmini-track .pmini{flex:0 0 auto;width:calc(25% - 15px);height:304px;overflow:hidden;scroll-snap-align:start}
.pmini-track .pmini .pmini-body h4{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:38px}
.parrow{position:absolute;top:50%;transform:translateY(-50%);z-index:6;width:54px;height:54px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:32px;line-height:1;cursor:pointer;box-shadow:0 8px 24px rgba(17,20,24,.14);transition:all .2s ease;display:flex;align-items:center;justify-content:center;padding:0 0 5px 0}
.parrow:hover{background:var(--copper);color:#fff;border-color:var(--copper);box-shadow:0 10px 28px rgba(178,109,49,.35)}
.parrow.prev{left:-27px}
.parrow.next{right:-27px}
@media(max-width:1240px){.parrow.prev{left:2px}.parrow.next{right:2px}}
@media(max-width:980px){.pmini-track .pmini{width:calc(50% - 10px)}}
@media(max-width:600px){.pmini-track .pmini{width:calc(78% - 10px)}.parrow{width:44px;height:44px;font-size:26px}}

/* ---- home search button + mobile input fix ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 22px;font-size:14.5px;font-weight:600;border:none;border-radius:2px;cursor:pointer;letter-spacing:.3px;font-family:inherit}
.btn-primary{background:var(--copper);color:#fff;transition:background .2s ease}
.btn-primary:hover{background:var(--copper-d)}
@media(max-width:600px){.home-search .fleet-search{flex:0 0 auto;width:100%}}