/* ============================================================
   乐得物业 luckpm.com · 设计系统 site.css（v1.0）
   B 端专业调性：墨蓝 --brand-ink 主调 + 品牌橙点缀（面积 ≤7%）
   ============================================================ */
:root {
  /* 品牌（继承乐得，不得改） */
  --brand-primary: #F5821F;
  --brand-primary-strong: #E06A0C;
  --brand-primary-deep: #B85408;
  --brand-primary-tint: #FEEFE0;
  --brand-primary-tint-2: #FDDCBA;
  --brand-grey: #6D6E71;
  --brand-grey-light: #A8A9AC;
  /* luckpm B 端辅助层 */
  --brand-ink: #1F2A33;
  --brand-ink-soft: #384A57;
  --brand-steel: #5B7285;
  --brand-ink-tint: #EDF1F4;
  --accent-line: #C8D3DB;
  /* 中性 & 功能 */
  --bg-page: #FBFCFD;
  --bg-surface: #FFFFFF;
  --bg-subtle: #F4F6F8;
  --border: #E3E8EC;
  --text-primary: #22282E;
  --text-secondary: #6D6E71;
  --success: #3F7A5E;
  --warning: #BA7517;
  --danger: #C0392B;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 2px 12px rgba(31, 42, 51, .06);
  --shadow-hover: 0 6px 24px rgba(31, 42, 51, .10);
  --maxw: 1240px;
  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  --font-num: "Inter", "Helvetica Neue", Arial, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 16px; line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s; }
ul, ol { list-style: none; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.num { font-family: var(--font-num); font-variant-numeric: tabular-nums; }
.muted { color: var(--text-secondary); }
.small { font-size: 13px; }
.up { text-transform: none; }
::selection { background: var(--brand-primary-tint-2); }

/* ---------- 顶部工具条 ---------- */
.topbar { background: var(--brand-ink); color: #C8D3DB; font-size: 13px; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 36px; }
.topbar a:hover { color: #fff; }
.topbar .tb-right { display: flex; gap: 18px; align-items: center; }
.topbar .tb-phone { color: #fff; font-family: var(--font-num); letter-spacing: .5px; }

/* ---------- 头部 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .96); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .25s;
}
.site-header.scrolled { box-shadow: var(--shadow); }
.header-main { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--brand-primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 700; flex: none;
}
.logo-text { line-height: 1.25; }
.logo-text b { font-size: 19px; color: var(--brand-ink); letter-spacing: 1px; }
.logo-text span { display: block; font-size: 10px; color: var(--brand-steel); letter-spacing: 2px; font-family: var(--font-num); }
.main-nav { display: flex; gap: 4px; }
.main-nav a {
  padding: 8px 13px; font-size: 15px; color: var(--brand-ink-soft);
  border-radius: 8px; position: relative;
}
.main-nav a:hover { color: var(--brand-ink); background: var(--bg-subtle); }
.main-nav a.active { color: var(--brand-ink); font-weight: 500; }
.main-nav a.active::after {
  content: ""; position: absolute; left: 13px; right: 13px; bottom: 2px;
  height: 3px; border-radius: 2px; background: var(--brand-primary);
}
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-phone { text-align: right; line-height: 1.3; }
.header-phone b { font-family: var(--font-num); font-size: 17px; color: var(--brand-ink); display: block; }
.header-phone span { font-size: 11px; color: var(--text-secondary); }
.nav-toggle {
  display: none; width: 42px; height: 42px; border: 1px solid var(--border);
  background: #fff; border-radius: 8px; cursor: pointer; font-size: 20px; color: var(--brand-ink);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 11px 22px; border-radius: 8px; font-size: 15px; font-weight: 500;
  cursor: pointer; border: 1px solid transparent; transition: all .2s; white-space: nowrap;
}
.btn-primary { background: var(--brand-primary-strong); color: #fff; }
.btn-primary:hover { background: var(--brand-primary-deep); }
.btn-dark { background: var(--brand-ink); color: #fff; }
.btn-dark:hover { background: var(--brand-ink-soft); }
.btn-outline { background: #fff; border-color: var(--accent-line); color: var(--brand-ink); }
.btn-outline:hover { border-color: var(--brand-primary); color: var(--brand-primary-deep); }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-block { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  background: var(--brand-ink); color: #fff; position: relative; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image: radial-gradient(circle at 80% 20%, rgba(245, 130, 31, .18), transparent 40%),
    radial-gradient(circle at 15% 85%, rgba(91, 114, 133, .35), transparent 45%);
}
.hero .container { position: relative; padding: 72px 20px 88px; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: #F5C99B;
  border: 1px solid rgba(245, 130, 31, .4); padding: 5px 14px; border-radius: 999px; margin-bottom: 22px;
}
.hero h1 { font-size: 46px; line-height: 1.25; font-weight: 700; letter-spacing: 1px; }
.hero h1 em { font-style: normal; color: var(--brand-primary); }
.hero-sub { font-size: 18px; color: #B9C6D0; margin: 18px 0 30px; max-width: 620px; }
.hero-sub b { color: #fff; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-note { margin-top: 26px; font-size: 13px; color: #8FA3B0; display: flex; gap: 22px; flex-wrap: wrap; }
.hero-note span::before { content: "✓"; color: var(--brand-primary); margin-right: 6px; }

/* 页内 Hero（内页） */
.page-hero { background: var(--brand-ink); color: #fff; position: relative; overflow: hidden; }
.page-hero::before { content: ""; position: absolute; inset: 0; opacity: .45;
  background-image: radial-gradient(circle at 85% 15%, rgba(245,130,31,.16), transparent 45%); }
.page-hero .container { position: relative; padding: 52px 20px 56px; }
.page-hero h1 { font-size: 34px; font-weight: 700; letter-spacing: .5px; }
.page-hero p { margin-top: 12px; color: #B9C6D0; max-width: 680px; font-size: 16px; }
.crumbs { font-size: 13px; color: #8FA3B0; margin-bottom: 16px; }
.crumbs a:hover { color: #fff; }

/* ---------- 区块 ---------- */
.section { padding: 72px 0; }
.section.tint { background: var(--bg-subtle); }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-eyebrow { font-size: 13px; font-weight: 500; color: var(--brand-primary-deep); letter-spacing: 2px; margin-bottom: 10px; }
.section-head h2 { font-size: 32px; font-weight: 700; color: var(--brand-ink); letter-spacing: .5px; }
.section-head p { margin-top: 12px; color: var(--text-secondary); font-size: 16px; }

/* ---------- 数字背书 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat-card {
  background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 24px; box-shadow: var(--shadow);
}
.stat-card .num { font-size: 40px; font-weight: 700; color: var(--brand-ink); line-height: 1.1; }
.stat-card .num small { font-size: 16px; font-weight: 500; color: var(--brand-steel); margin-left: 4px; }
.stat-card .lbl { margin-top: 8px; color: var(--text-secondary); font-size: 14px; }

/* ---------- 服务板块卡 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cat-card {
  background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow); transition: all .25s; display: flex; flex-direction: column;
}
.cat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: var(--accent-line); }
.cat-card .cat-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 14px; }
.cat-card h3 { font-size: 19px; color: var(--brand-ink); }
.cat-card .cat-key { font-family: var(--font-num); font-size: 13px; color: var(--brand-steel); }
.cat-card p { font-size: 14px; color: var(--text-secondary); flex: 1; }
.cat-card .cat-link { margin-top: 14px; font-size: 14px; font-weight: 500; color: var(--brand-primary-deep); }
.cat-card .cat-link::after { content: " →"; }

/* ---------- 模式标签 ---------- */
.mode-tag { display: inline-block; font-size: 12px; padding: 3px 10px; border-radius: 999px; font-weight: 500; }
.mode-自有 { background: var(--brand-primary-tint); color: var(--brand-primary-deep); }
.mode-分包, .mode-自有分包 { background: #E6F1FB; color: #185FA5; }
.mode-联合体 { background: #EEEDFE; color: #534AB7; }

/* ---------- 服务卡（列表） ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.svc-card {
  background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow); transition: all .25s;
  display: flex; flex-direction: column; gap: 10px;
}
.svc-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.svc-card h4 { font-size: 16px; color: var(--brand-ink); }
.svc-card p { font-size: 13px; color: var(--text-secondary); flex: 1; }
.svc-card .svc-foot { display: flex; justify-content: space-between; align-items: center; font-size: 13px; }
.svc-card .svc-foot a { color: var(--brand-primary-deep); font-weight: 500; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 560px; }
table.tbl th, table.tbl td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); }
table.tbl thead th { background: var(--brand-ink); color: #fff; font-weight: 500; white-space: nowrap; }
table.tbl tbody tr:nth-child(even) { background: var(--bg-subtle); }
table.tbl tbody tr:last-child td { border-bottom: none; }
table.tbl .t-right { text-align: right; font-family: var(--font-num); }
table.tbl tr.total td { font-weight: 700; color: var(--brand-ink); background: var(--brand-ink-tint); }

/* ---------- 步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; counter-reset: step; }
.step { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 18px; position: relative; box-shadow: var(--shadow); }
.step::before {
  counter-increment: step; content: counter(step);
  display: inline-flex; width: 30px; height: 30px; border-radius: 50%;
  background: var(--brand-ink); color: #fff; align-items: center; justify-content: center;
  font-family: var(--font-num); font-weight: 600; font-size: 14px; margin-bottom: 12px;
}
.step h4 { font-size: 15px; color: var(--brand-ink); margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--text-secondary); }

/* ---------- 卡片通用 ---------- */
.card {
  background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden; transition: all .25s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.card-body { padding: 22px; }
.card-title { font-size: 17px; color: var(--brand-ink); font-weight: 600; }
.card-text { font-size: 14px; color: var(--text-secondary); margin-top: 8px; }

/* ---------- 案例卡 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.case-cover { height: 150px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 15px; font-weight: 600; letter-spacing: 1px; position: relative; }
.case-cover .tag-demo { position: absolute; top: 10px; right: 10px; background: rgba(255,255,255,.2); font-size: 11px; padding: 2px 8px; border-radius: 999px; font-weight: 400; }
.case-meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.meta-chip { font-size: 12px; background: var(--bg-subtle); border: 1px solid var(--border); padding: 3px 10px; border-radius: 999px; color: var(--brand-steel); }

/* ---------- 项目/公示 ---------- */
.disc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.disc-block h4 { font-size: 15px; color: var(--brand-ink); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.disc-block h4::before { content: ""; width: 4px; height: 14px; background: var(--brand-primary); border-radius: 2px; }
.update-stamp { font-size: 12px; color: var(--text-secondary); background: var(--brand-ink-tint); padding: 8px 14px; border-radius: 8px; display: inline-block; }

/* ---------- 新闻 ---------- */
.news-item { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--border); }
.news-item:last-child { border-bottom: none; }
.news-date { flex: none; width: 86px; text-align: center; }
.news-date .d { font-family: var(--font-num); font-size: 26px; font-weight: 700; color: var(--brand-ink); line-height: 1; }
.news-date .m { font-size: 12px; color: var(--text-secondary); }
.news-body h4 { font-size: 16px; color: var(--brand-ink); }
.news-body h4 a:hover { color: var(--brand-primary-deep); }
.news-body p { font-size: 14px; color: var(--text-secondary); margin-top: 6px; }
.news-cat { font-size: 12px; color: var(--brand-primary-deep); background: var(--brand-primary-tint); padding: 2px 10px; border-radius: 999px; display: inline-block; margin-top: 8px; }

/* ---------- FAQ ---------- */
.faq-cat { margin-bottom: 30px; }
.faq-cat h3 { font-size: 18px; color: var(--brand-ink); margin-bottom: 14px; }
details.faq { background: #fff; border: 1px solid var(--border); border-radius: 10px; margin-bottom: 10px; overflow: hidden; }
details.faq summary {
  padding: 15px 20px; cursor: pointer; font-size: 15px; font-weight: 500; color: var(--brand-ink);
  list-style: none; position: relative; padding-right: 44px;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-size: 20px; color: var(--brand-steel); }
details.faq[open] summary::after { content: "−"; color: var(--brand-primary-deep); }
details.faq .faq-a { padding: 0 20px 16px; font-size: 14px; color: var(--text-secondary); }

/* ---------- 表单 ---------- */
.form-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 30px; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 13px; font-weight: 500; color: var(--brand-ink-soft); margin-bottom: 6px; }
.field label i { color: var(--danger); font-style: normal; }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--accent-line); border-radius: 8px;
  font-size: 15px; font-family: inherit; background: #fff; transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand-primary); box-shadow: 0 0 0 3px var(--brand-primary-tint);
}
.field textarea { resize: vertical; min-height: 96px; }
.field .err { display: none; font-size: 12px; color: var(--danger); margin-top: 5px; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: var(--danger); }
.field.invalid .err { display: block; }
.form-note { font-size: 12px; color: var(--text-secondary); margin-top: 12px; }
.form-success {
  display: none; background: #EAF3DE; border: 1px solid #C0DD97; color: #27500A;
  padding: 14px 18px; border-radius: 10px; font-size: 14px; margin-top: 14px;
}
.form-success.show { display: block; }

/* ---------- CTA 横幅 ---------- */
.cta-band { background: var(--brand-ink); color: #fff; border-radius: var(--radius-lg); padding: 44px 48px; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; position: relative; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; right: -60px; top: -60px; width: 240px; height: 240px; border-radius: 50%; background: rgba(245, 130, 31, .14); }
.cta-band h3 { font-size: 24px; font-weight: 700; }
.cta-band p { color: #B9C6D0; margin-top: 8px; max-width: 520px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--brand-ink); color: #9FB0BC; margin-top: 80px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px; padding: 56px 0 40px; }
.footer-brand .logo-text b { color: #fff; }
.footer-brand p { font-size: 13px; margin-top: 14px; line-height: 1.8; }
.footer-col h5 { color: #fff; font-size: 15px; margin-bottom: 16px; font-weight: 600; }
.footer-col ul li { margin-bottom: 9px; }
.footer-col a { font-size: 13px; }
.footer-col a:hover { color: var(--brand-primary); }
.footer-group { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.footer-group a { font-size: 12px; border: 1px solid #3A4B58; padding: 5px 12px; border-radius: 999px; }
.footer-group a:hover { border-color: var(--brand-primary); }
.footer-legal { border-top: 1px solid #2E3D48; padding: 20px 0; font-size: 12px; line-height: 1.9; }
.footer-legal b { color: #C8D3DB; }
.footer-legal .icp { color: #7E93A1; }

/* ---------- 移动端固定 CTA ---------- */
.mobile-cta {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
  background: #fff; border-top: 1px solid var(--border); box-shadow: 0 -2px 12px rgba(0,0,0,.06);
}
.mobile-cta .row { display: flex; }
.mobile-cta a { flex: 1; text-align: center; padding: 13px 4px; font-size: 13px; font-weight: 500; color: var(--brand-ink); }
.mobile-cta a.hot { background: var(--brand-primary-strong); color: #fff; }

/* ---------- 示例提示条 ---------- */
.demo-banner { background: var(--brand-primary-tint); border-bottom: 1px solid var(--brand-primary-tint-2); color: var(--brand-primary-deep); font-size: 13px; text-align: center; padding: 8px 16px; }

/* ---------- 面包屑（内页白底） ---------- */
.breadcrumb { font-size: 13px; color: var(--text-secondary); padding: 18px 0 0; }
.breadcrumb a:hover { color: var(--brand-primary-deep); }

/* ---------- 双栏布局 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split .visual { border-radius: var(--radius-lg); background: var(--brand-ink-tint); min-height: 300px; display: flex; align-items: center; justify-content: center; color: var(--brand-steel); }

/* ---------- 服务详情页 ---------- */
.svc-hero { background: var(--brand-ink-tint); border-bottom: 1px solid var(--border); padding: 40px 0; }
.svc-hero .mode-tag { margin-bottom: 12px; }
.svc-hero h1 { font-size: 30px; color: var(--brand-ink); }
.svc-hero p { margin-top: 10px; color: var(--text-secondary); max-width: 760px; }
.svc-body { padding: 48px 0 72px; }
.svc-section { margin-bottom: 40px; }
.svc-section h2 { font-size: 21px; color: var(--brand-ink); margin-bottom: 16px; padding-left: 12px; border-left: 4px solid var(--brand-primary); }
.svc-note { background: #EEF4FB; border: 1px solid #CFE0F0; color: #185FA5; padding: 14px 18px; border-radius: 10px; font-size: 13px; margin-top: 16px; }
.svc-note.warn { background: #FAEEDA; border-color: var(--brand-primary-tint-2); color: var(--brand-primary-deep); }

/* ---------- 时间轴 ---------- */
.timeline { position: relative; padding-left: 26px; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 2px; background: var(--accent-line); }
.tl-item { position: relative; padding-bottom: 26px; }
.tl-item::before { content: ""; position: absolute; left: -26px; top: 6px; width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 3px solid var(--brand-primary); }
.tl-item .tl-year { font-family: var(--font-num); font-weight: 700; color: var(--brand-ink); }
.tl-item p { font-size: 14px; color: var(--text-secondary); }

/* ---------- 合作方/列表行 ---------- */
.row-line { display: flex; justify-content: space-between; align-items: center; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--border); }
.row-line:last-child { border-bottom: none; }
.row-line b { color: var(--brand-ink); font-size: 15px; font-weight: 600; }
.row-line .rl-note { font-size: 13px; color: var(--text-secondary); margin-top: 3px; }

/* ---------- 文章 ---------- */
.article-body p { margin-bottom: 16px; font-size: 16px; }
.article-body p:first-of-type::first-letter { font-size: 1.2em; }

/* ---------- 返回顶部 ---------- */
.backtop {
  position: fixed; right: 22px; bottom: 90px; z-index: 80; width: 44px; height: 44px;
  border-radius: 50%; background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow);
  display: none; align-items: center; justify-content: center; cursor: pointer; color: var(--brand-ink); font-size: 18px;
}
.backtop.show { display: flex; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .cat-grid, .svc-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .hero .container { padding: 52px 20px 64px; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 16px; }
  .page-hero h1 { font-size: 26px; }
  .section-head h2 { font-size: 25px; }
  .main-nav, .header-phone { display: none; }
  .nav-toggle { display: block; }
  .mobile-cta { display: block; }
  body { padding-bottom: 52px; }
  .cat-grid, .svc-grid, .case-grid, .stats, .steps, .disc-grid, .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .cta-band { padding: 30px 24px; }
  .topbar .tb-left { display: none; }
}
/* 移动端抽屉 */
.drawer { position: fixed; inset: 0; z-index: 200; pointer-events: none; }
.drawer .mask { position: absolute; inset: 0; background: rgba(15, 22, 28, .5); opacity: 0; transition: opacity .25s; }
.drawer .panel {
  position: absolute; right: 0; top: 0; bottom: 0; width: 300px; background: #fff;
  transform: translateX(100%); transition: transform .25s; padding: 24px; overflow-y: auto;
}
.drawer.open { pointer-events: auto; }
.drawer.open .mask { opacity: 1; }
.drawer.open .panel { transform: none; }
.drawer a { display: block; padding: 13px 12px; border-bottom: 1px solid var(--border); color: var(--brand-ink); font-size: 16px; }
.drawer .drawer-cta { margin-top: 18px; display: flex; flex-direction: column; gap: 10px; }
.drawer .drawer-cta .btn { width: 100%; }

/* ===== 组件补充（build v1.0） ===== */
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 22px; }
.kv { width: 100%; border-collapse: collapse; font-size: 14px; }
.kv td { padding: 11px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.kv td:first-child { color: var(--muted); width: 36%; white-space: nowrap; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; border: 1px solid var(--border); background: var(--bg-soft, #f5f7fa); color: var(--muted); }
.badge.real { background: #e8f5e9; color: #2e7d32; border-color: #c8e6c9; }
.badge.demo { background: #fff8e1; color: #8d6e00; border-color: #ffe082; }
.badge.doing { background: #e3f2fd; color: #1565c0; border-color: #bbdefb; }
.faq-item { border: 1px solid var(--border); border-radius: 12px; margin-bottom: 12px; background: #fff; overflow: hidden; }
.faq-item h4 { margin: 0; padding: 15px 18px; font-size: 15px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.faq-item h4::after { content: "+"; color: var(--brand-orange, #e8722a); font-size: 20px; flex: none; }
.faq-item.open h4::after { content: "−"; }
.faq-item .faq-a { display: none; padding: 0 18px 16px; color: var(--muted); font-size: 14px; line-height: 1.8; }
.faq-item.open .faq-a { display: block; }
.form-success { display: none; margin-top: 16px; padding: 14px 16px; border-radius: 12px; background: #e8f5e9; border: 1px solid #c8e6c9; color: #2e7d32; font-size: 14px; line-height: 1.8; }
.form-success.show { display: block; }
.form-success span { color: var(--muted); font-size: 12px; }
.stars { display: flex; gap: 6px; margin: 6px 0 4px; }
.stars button { width: 38px; height: 38px; border: 1px solid var(--border); background: #fff; border-radius: 10px; cursor: pointer; font-size: 18px; color: #ccc; line-height: 1; }
.stars button.on { color: #f5a623; border-color: #f5a623; background: #fffaf0; }
.notice-list { list-style: none; margin: 0; padding: 0; }
.notice-list li { display: flex; gap: 14px; padding: 12px 4px; border-bottom: 1px dashed var(--border); font-size: 14px; align-items: baseline; }
.notice-list time { color: var(--muted); font-size: 12px; flex: none; width: 86px; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.team-item { border: 1px solid var(--border); border-radius: 12px; padding: 14px; background: #fff; }
.team-item b { display: block; font-size: 14px; margin-bottom: 4px; }
.team-item span { color: var(--muted); font-size: 13px; }
.download-item { display: flex; justify-content: space-between; align-items: center; gap: 14px; border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; background: #fff; margin-bottom: 12px; }
.download-item b { font-size: 15px; }
.download-item p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
.pain-list li, .approach-list li { margin-bottom: 8px; font-size: 14px; line-height: 1.7; list-style: none; position: relative; padding-left: 20px; }
.pain-list li::before { content: "✕"; position: absolute; left: 0; color: #c62828; font-size: 12px; }
.approach-list li::before { content: "✓"; position: absolute; left: 0; color: #2e7d32; font-size: 12px; }
.pain-list, .approach-list { margin: 0; padding: 0; }
.num-card { border: 1px solid var(--border); border-radius: 12px; padding: 18px; background: #fff; }
.num-card b { display: block; font-size: 24px; color: var(--brand-orange, #e8722a); }
.num-card span { color: var(--muted); font-size: 13px; }
.anchor-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 26px; }
.anchor-tabs a { border: 1px solid var(--border); border-radius: 999px; padding: 8px 18px; font-size: 14px; background: #fff; }
.anchor-tabs a:hover { border-color: var(--brand-orange, #e8722a); color: var(--brand-orange, #e8722a); }
.sub-section { margin-top: 40px; }
@media (max-width: 720px) { .download-item { flex-direction: column; align-items: flex-start; } }