/* ==========================================================================
   北京筑傲科技有限公司 · 广告事业部  zhuaotech.asia
   设计系统 —— 单文件样式表，零外部依赖
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  --ink: #0a1020;
  --ink-2: #16233d;
  --ink-3: #3d4a63;
  --muted: #6b7891;
  --line: #e4e9f2;
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --bg-softer: #fafbfe;

  --brand: #1b47d6;
  --brand-dark: #1436a8;
  --brand-soft: #eaefff;
  --accent: #ff7a2f;
  --accent-dark: #e8631a;
  --accent-soft: #fff1e8;
  --teal: #0fb5a0;

  --grad-hero: radial-gradient(1200px 600px at 12% -10%, #24408f 0%, transparent 60%),
               radial-gradient(900px 500px at 95% 8%, #6a3df0 0%, transparent 55%),
               linear-gradient(160deg, #0a1020 0%, #101c38 55%, #0a1020 100%);
  --grad-accent: linear-gradient(135deg, #ff8a3d 0%, #ff6a2b 100%);
  --grad-brand: linear-gradient(135deg, #2b5cff 0%, #1b47d6 100%);

  --radius-s: 8px;
  --radius: 14px;
  --radius-l: 22px;
  --shadow-s: 0 1px 2px rgba(10, 16, 32, .06), 0 2px 8px rgba(10, 16, 32, .04);
  --shadow: 0 4px 12px rgba(10, 16, 32, .06), 0 12px 32px rgba(10, 16, 32, .07);
  --shadow-l: 0 12px 28px rgba(10, 16, 32, .10), 0 32px 64px rgba(10, 16, 32, .10);

  --maxw: 1200px;
  --gut: clamp(18px, 4vw, 32px);
  --sect: clamp(64px, 9vw, 112px);

  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
          "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; transition: color .18s ease; }
a:hover { color: var(--brand-dark); }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.28; margin: 0 0 .6em; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(30px, 5.2vw, 54px); }
h2 { font-size: clamp(24px, 3.6vw, 38px); }
h3 { font-size: clamp(19px, 2.2vw, 24px); }
h4 { font-size: 17px; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }
li { margin-bottom: .4em; }
strong { color: var(--ink); font-weight: 600; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }
:focus-visible { outline: 3px solid var(--brand); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--brand); color: #fff; }

/* ---------- 布局工具 ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gut); }
.section { padding: var(--sect) 0; }
.section--soft { background: var(--bg-soft); }
.section--softer { background: var(--bg-softer); }
.section--ink { background: var(--ink); color: #cfd8ea; }
.section--ink h2, .section--ink h3, .section--ink h4 { color: #fff; }
.center { text-align: center; }
.grid { display: grid; gap: clamp(16px, 2.4vw, 26px); }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.mt0 { margin-top: 0; } .mb0 { margin-bottom: 0; }

/* ---------- 章节标题 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .12em;
  color: var(--brand); text-transform: uppercase; margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--accent); border-radius: 2px; }
.section--ink .eyebrow { color: #8fa6e8; }
.sect-head { max-width: 720px; margin-bottom: clamp(32px, 5vw, 56px); }
.sect-head.center { margin-left: auto; margin-right: auto; }
.sect-head p { color: var(--muted); font-size: 17px; margin-bottom: 0; }
.section--ink .sect-head p { color: #a8b6d1; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; border: 1px solid transparent;
  font-size: 15px; font-weight: 600; font-family: inherit; cursor: pointer;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease, color .16s ease, border-color .16s;
  white-space: nowrap; line-height: 1.2;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--grad-accent); color: #fff; box-shadow: 0 6px 18px rgba(255, 106, 43, .32); }
.btn--primary:hover { color: #fff; box-shadow: 0 10px 26px rgba(255, 106, 43, .40); }
.btn--brand { background: var(--grad-brand); color: #fff; box-shadow: 0 6px 18px rgba(27, 71, 214, .26); }
.btn--brand:hover { color: #fff; }
.btn--ghost { background: transparent; color: var(--ink); border-color: #cdd6e6; }
.btn--ghost:hover { border-color: var(--brand); color: var(--brand); background: #fff; }
.btn--light { background: rgba(255,255,255,.10); color: #fff; border-color: rgba(255,255,255,.28); backdrop-filter: blur(6px); }
.btn--light:hover { background: rgba(255,255,255,.18); color: #fff; }
.btn--sm { padding: 9px 18px; font-size: 14px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- 顶栏 ---------- */
.topbar {
  background: var(--ink); color: #93a2c0; font-size: 13px;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 38px; }
.topbar a { color: #b9c6e0; display: inline-flex; align-items: center; gap: 6px; }
.topbar a:hover { color: #fff; }
.topbar svg { width: 14px; height: 14px; flex: none; }
.topbar svg path, .topbar svg rect, .topbar svg circle, .topbar svg line,
.topbar svg polyline, .topbar svg polygon { stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.topbar__links { display: flex; align-items: center; gap: 18px; }
.topbar__main { color: #ffb37a !important; font-weight: 600; }
@media (max-width: 760px) { .topbar__hide { display: none; } .topbar__links { gap: 12px; } }

.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255,255,255,.88); backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line); transition: box-shadow .2s;
}
.site-header.is-stuck { box-shadow: var(--shadow-s); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 70px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); flex-shrink: 0; }
.brand:hover { color: var(--ink); }
.brand__mark { width: 40px; height: 40px; flex: none; }
.brand__txt { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name { font-size: 16px; font-weight: 700; letter-spacing: .01em; }
.brand__sub { font-size: 11.5px; color: var(--muted); letter-spacing: .06em; }

.nav__menu { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav__menu > li { position: relative; margin: 0; }
.nav__menu > li > a {
  display: block; padding: 10px 14px; border-radius: var(--radius-s);
  color: var(--ink-2); font-size: 15px; font-weight: 500;
}
.nav__menu > li > a:hover, .nav__menu > li > a.is-active { color: var(--brand); background: var(--brand-soft); }
.nav__cta { display: flex; align-items: center; gap: 10px; }

.dropdown {
  position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(6px);
  width: 480px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-l); padding: 14px; opacity: 0; visibility: hidden;
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
}
.has-drop:hover .dropdown, .has-drop:focus-within .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.dropdown a {
  display: flex; align-items: flex-start; gap: 10px; padding: 9px 12px;
  border-radius: var(--radius-s); color: var(--ink-2);
}
.dropdown a:hover { background: var(--bg-soft); color: var(--brand); }
.dropdown a b { display: block; font-size: 14px; font-weight: 600; color: var(--ink); }
.dropdown a span { display: block; font-size: 12px; color: var(--muted); line-height: 1.45; }
.dropdown a:hover b { color: var(--brand); }
.dropdown__ico { width: 30px; height: 30px; flex: none; padding: 5px; background: var(--brand-soft); border-radius: 8px; }
.dropdown__ico path, .dropdown__ico rect, .dropdown__ico circle, .dropdown__ico line, .dropdown__ico polyline, .dropdown__ico polygon {
  stroke: var(--brand); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round;
}

.nav__toggle {
  display: none; width: 44px; height: 44px; border: 1px solid var(--line); background: #fff;
  border-radius: 10px; cursor: pointer; padding: 11px 10px; flex-direction: column; justify-content: space-between;
}
.nav__toggle span { display: block; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s, opacity .2s; }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

@media (max-width: 1080px) {
  .nav__toggle { display: flex; }
  .nav__menu {
    position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line); padding: 12px var(--gut) 22px; gap: 2px;
    box-shadow: var(--shadow); display: none;
  }
  .nav__menu.is-open { display: flex; }
  .dropdown { position: static; transform: none; width: auto; opacity: 1; visibility: visible; box-shadow: none; border: 0; padding: 0 0 6px 14px; }
  .dropdown__grid { grid-template-columns: 1fr; }
  .nav__cta .btn--ghost { display: none; }
}

/* ---------- Hero ---------- */
.hero { position: relative; background: var(--grad-hero); color: #d7e0f2; overflow: hidden; }
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(1000px 500px at 50% 0%, #000 20%, transparent 78%);
}
.hero__inner { position: relative; z-index: 2; padding: clamp(56px, 8vw, 104px) 0 clamp(48px, 7vw, 84px); }
.hero__grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.hero h1 { color: #fff; margin-bottom: 18px; }
.hero h1 .accent {
  background: linear-gradient(120deg, #ffb37a, #ff7a2f 60%, #ff9d5c);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .eyebrow { color: #9db2e8; }
.hero__lead { font-size: clamp(15.5px, 1.6vw, 18px); color: #b9c7e2; max-width: 62ch; margin-bottom: 26px; }
.hero__visual { position: relative; }

/* Hero 右侧视觉卡片 */
.hv { position: relative; border-radius: var(--radius-l); overflow: hidden; background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.14); box-shadow: var(--shadow-l); padding: 22px; }
.hv__bar { display: flex; align-items: center; gap: 7px; margin-bottom: 16px; }
.hv__dot { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,.25); }
.hv__dot:nth-child(1) { background: #ff6a5e; } .hv__dot:nth-child(2) { background: #ffc14d; } .hv__dot:nth-child(3) { background: #4ad07a; }
.hv__title { margin-left: auto; font-size: 11.5px; letter-spacing: .1em; color: #8ba0c8; text-transform: uppercase; }
.hv__rows { display: grid; gap: 9px; }
.hv__row { display: flex; align-items: center; gap: 12px; padding: 11px 13px; border-radius: 10px;
  background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.08); }
.hv__row svg { width: 20px; height: 20px; flex: none; }
.hv__row svg path, .hv__row svg rect, .hv__row svg circle, .hv__row svg line, .hv__row svg polyline, .hv__row svg polygon {
  stroke: #7fa2ff; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.hv__row b { font-size: 13.5px; color: #e6edfa; font-weight: 600; }
.hv__row i { margin-left: auto; font-style: normal; font-size: 11.5px; color: #7f95bb; }
.hv__meter { height: 6px; border-radius: 4px; background: rgba(255,255,255,.1); overflow: hidden; margin-top: 14px; }
.hv__meter i { display: block; height: 100%; border-radius: 4px; background: var(--grad-accent); }
@media (max-width: 940px) { .hero__grid { grid-template-columns: 1fr; } .hero__visual { display: none; } }

/* ---------- 数据条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border-radius: var(--radius); overflow: hidden; }
.stats__item { background: #fff; padding: 26px 20px; text-align: center; }
.stats__v { font-size: clamp(26px, 3.4vw, 36px); font-weight: 800; color: var(--brand); letter-spacing: -.02em; line-height: 1.1; }
.stats__l { font-size: 13.5px; color: var(--muted); margin-top: 6px; }
.stats--float { margin-top: -44px; position: relative; z-index: 5; box-shadow: var(--shadow-l); }
@media (max-width: 700px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 服务卡片 ---------- */
.svc-card {
  position: relative; display: flex; flex-direction: column; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px 24px;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; overflow: hidden;
}
.svc-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 3px; background: var(--grad-accent);
  transform: scaleX(0); transform-origin: left; transition: transform .28s ease; }
.svc-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-l); border-color: #d7deee; }
.svc-card:hover::before { transform: scaleX(1); }
.svc-card__ico { width: 52px; height: 52px; border-radius: 13px; background: var(--brand-soft); padding: 12px; margin-bottom: 16px; }
.svc-card__ico svg { width: 100%; height: 100%; }
.svc-card__ico svg path, .svc-card__ico svg rect, .svc-card__ico svg circle,
.svc-card__ico svg line, .svc-card__ico svg polyline, .svc-card__ico svg polygon {
  stroke: var(--brand); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round;
}
.svc-card:hover .svc-card__ico { background: var(--brand); }
.svc-card:hover .svc-card__ico svg path, .svc-card:hover .svc-card__ico svg rect, .svc-card:hover .svc-card__ico svg circle,
.svc-card:hover .svc-card__ico svg line, .svc-card:hover .svc-card__ico svg polyline, .svc-card:hover .svc-card__ico svg polygon { stroke: #fff; }
.svc-card__n { font-size: 12px; font-weight: 700; letter-spacing: .1em; color: var(--accent); }
.svc-card h3 { margin: 6px 0 8px; font-size: 20px; }
.svc-card p { color: var(--muted); font-size: 14.6px; margin-bottom: 16px; }
.svc-card__more { margin-top: auto; font-size: 14px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: 6px; }
.svc-card__more::after { content: "→"; transition: transform .2s; }
.svc-card:hover .svc-card__more::after { transform: translateX(4px); }
.svc-card--link { color: inherit; }
.svc-card--link:hover { color: inherit; }
/* 服务卡无特殊高亮态（保持各业务视觉一致） */

/* ---------- 首页核心业务大卡（已移除高亮展示，保持各业务视觉一致） ---------- */

/* ---------- 首页 hero 核心业务条（已移除高亮展示，保持各业务视觉一致） ---------- */

/* ---------- 优势 / 特性 ---------- */
.feat { display: flex; gap: 16px; align-items: flex-start; }
.feat__ico { width: 44px; height: 44px; flex: none; border-radius: 12px; background: #fff; border: 1px solid var(--line);
  padding: 10px; box-shadow: var(--shadow-s); }
.feat__ico svg { width: 100%; height: 100%; }
.feat__ico svg path, .feat__ico svg rect, .feat__ico svg circle, .feat__ico svg line,
.feat__ico svg polyline, .feat__ico svg polygon { stroke: var(--brand); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.feat h4 { margin: 2px 0 6px; }
.feat p { font-size: 14.6px; color: var(--muted); margin: 0; }

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.flow__item { background: #fff; padding: 28px 24px; position: relative; }
.flow__n { font-family: var(--mono); font-size: 13px; font-weight: 700; color: var(--accent); letter-spacing: .08em; }
.flow__item h4 { margin: 10px 0 8px; font-size: 17px; }
.flow__item p { font-size: 14.4px; color: var(--muted); margin: 0; }
@media (max-width: 900px) { .flow { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .flow { grid-template-columns: 1fr; } }

/* ---------- 行业 ---------- */
.ind {
  display: flex; gap: 14px; align-items: flex-start; padding: 20px; border: 1px solid var(--line);
  border-radius: var(--radius); background: #fff; transition: border-color .2s, box-shadow .2s, transform .2s;
}
.ind:hover { border-color: #cfd9ee; box-shadow: var(--shadow); transform: translateY(-3px); }
.ind__ico { width: 38px; height: 38px; flex: none; border-radius: 10px; background: var(--accent-soft); padding: 9px; }
.ind__ico svg { width: 100%; height: 100%; }
.ind__ico svg path, .ind__ico svg rect, .ind__ico svg circle, .ind__ico svg line,
.ind__ico svg polyline, .ind__ico svg polygon { stroke: var(--accent-dark); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.ind b { display: block; color: var(--ink); font-size: 15px; margin-bottom: 3px; }
.ind span { font-size: 13.4px; color: var(--muted); line-height: 1.6; }

/* ---------- FAQ ---------- */
.faq { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:last-child { border-bottom: 0; }
.faq summary {
  cursor: pointer; padding: 20px 54px 20px 22px; position: relative; font-weight: 600;
  color: var(--ink); font-size: 16.2px; list-style: none; transition: background .16s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { background: var(--bg-softer); }
.faq summary::after {
  content: ""; position: absolute; right: 24px; top: 50%; width: 11px; height: 11px;
  border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted);
  transform: translateY(-70%) rotate(45deg); transition: transform .22s;
}
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq details[open] summary { color: var(--brand); }
.faq__a { padding: 0 22px 22px; color: var(--ink-3); font-size: 15px; }
.faq__a p:last-child { margin-bottom: 0; }

/* ---------- 面包屑 ---------- */
.crumb { font-size: 13.5px; color: var(--muted); padding: 18px 0 0; }
.crumb ol { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0; padding: 0; }
.crumb li { margin: 0; display: flex; align-items: center; gap: 8px; }
.crumb li + li::before { content: "/"; color: #c3cbdb; }
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--brand); }
.crumb [aria-current] { color: var(--ink-2); font-weight: 500; }

/* ---------- 内页 Hero ---------- */
.phero { background: var(--grad-hero); color: #c6d2ea; position: relative; overflow: hidden; }
.phero::after { content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(800px 380px at 85% 120%, rgba(255,122,47,.20), transparent 70%); }
.phero__inner { position: relative; z-index: 2; padding: clamp(30px, 4vw, 48px) 0 clamp(46px, 6vw, 72px); }
.phero .crumb, .phero .crumb a, .phero .crumb [aria-current] { color: #8ea1c6; }
.phero .crumb [aria-current] { color: #cfdaee; }
.phero h1 { color: #fff; margin: 18px 0 14px; font-size: clamp(28px, 4.4vw, 44px); }
.phero__tag { color: #ffb37a; font-size: 14px; font-weight: 600; letter-spacing: .04em; }
.phero__lead { color: #aebdd9; max-width: 72ch; font-size: 16.5px; margin-bottom: 0; }

/* ---------- 服务详情 ---------- */
.svc-layout { display: grid; grid-template-columns: 1fr 320px; gap: clamp(28px, 4vw, 56px); align-items: start; }
@media (max-width: 980px) { .svc-layout { grid-template-columns: 1fr; } }
.prose { font-size: 16.4px; color: var(--ink-3); }
.prose h2 { margin-top: 2.2em; padding-top: .3em; font-size: clamp(21px, 2.6vw, 28px); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 1.8em; }
.prose > p:first-of-type { font-size: 17.4px; color: var(--ink-2); }

.pill-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; padding: 0; margin: 0; list-style: none; }
.pill-list li { margin: 0; display: flex; gap: 13px; padding: 17px 18px; background: var(--bg-soft);
  border: 1px solid var(--line); border-radius: var(--radius-s); }
.pill-list li::before { content: ""; flex: none; width: 20px; height: 20px; margin-top: 3px; border-radius: 50%;
  background: var(--brand-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231b47d6' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/12px no-repeat; }
.pill-list b { display: block; color: var(--ink); font-size: 15px; margin-bottom: 4px; }
.pill-list span { font-size: 14px; color: var(--muted); line-height: 1.62; }
@media (max-width: 640px) { .pill-list { grid-template-columns: 1fr; } }

.check-list { list-style: none; padding: 0; }
.check-list li { position: relative; padding-left: 30px; margin-bottom: 12px; }
.check-list li::before { content: ""; position: absolute; left: 0; top: 4px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23e8631a' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/11px no-repeat; }

/* 侧栏 */
.sidebar { position: sticky; top: 92px; display: grid; gap: 18px; }
.card-box { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-s); }
.card-box h4 { font-size: 16px; margin: 0 0 14px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.card-box--ink { background: var(--ink); border-color: var(--ink); color: #b9c7e2; }
.card-box--ink h4 { color: #fff; border-color: rgba(255,255,255,.12); }
.card-box--ink a { color: #ffb37a; }
.side-nav { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.side-nav li { margin: 0; }
.side-nav a { display: flex; justify-content: space-between; align-items: center; gap: 8px;
  padding: 10px 12px; border-radius: var(--radius-s); font-size: 14.5px; color: var(--ink-2); }
.side-nav a::after { content: "→"; font-size: 12px; opacity: 0; transition: opacity .18s, transform .18s; }
.side-nav a:hover { background: var(--bg-soft); color: var(--brand); }
.side-nav a:hover::after { opacity: 1; }
.side-nav a.is-active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.side-nav a.is-active::after { opacity: 1; }
.contact-quick { list-style: none; margin: 0; padding: 0; display: grid; gap: 13px; }
.contact-quick li { margin: 0; display: flex; gap: 11px; align-items: flex-start; font-size: 14.4px; }
.contact-quick svg { width: 18px; height: 18px; flex: none; margin-top: 3px; }
.contact-quick svg path, .contact-quick svg rect, .contact-quick svg circle, .contact-quick svg line,
.contact-quick svg polyline, .contact-quick svg polygon { stroke: currentColor; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.contact-quick b { display: block; color: var(--ink); font-weight: 600; }

/* ---------- 表单 ---------- */
.form { display: grid; gap: 16px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 620px) { .form__row { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 13.6px; font-weight: 600; color: var(--ink); }
.field label .req { color: #e0453a; }
.field input, .field select, .field textarea {
  font-family: inherit; font-size: 15px; color: var(--ink-2); padding: 12px 14px;
  border: 1px solid #d5dceb; border-radius: var(--radius-s); background: #fff; width: 100%;
  transition: border-color .16s, box-shadow .16s;
}
.field textarea { min-height: 118px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(27,71,214,.12);
}
.field .hint { font-size: 12.4px; color: var(--muted); }
.form__ok { display: none; padding: 14px 16px; border-radius: var(--radius-s); background: #e9f8f1;
  border: 1px solid #bfe8d6; color: #147a53; font-size: 14.6px; }
.form__ok.is-on { display: block; }
.form__err { display: none; padding: 14px 16px; border-radius: var(--radius-s); background: #fdeceb;
  border: 1px solid #f6cfcc; color: #b3352a; font-size: 14.6px; }
.form__err.is-on { display: block; }

/* ---------- 内容块 ---------- */
.note { padding: 16px 18px; border-left: 3px solid var(--accent); background: var(--accent-soft);
  border-radius: 0 var(--radius-s) var(--radius-s) 0; font-size: 14.6px; color: #7a4520; }
.note b { color: #5c3213; }
.cta-band { background: var(--grad-hero); color: #c5d1e9; border-radius: var(--radius-l); padding: clamp(30px, 4.4vw, 52px);
  position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(600px 300px at 92% 10%, rgba(255,122,47,.26), transparent 68%); }
.cta-band > * { position: relative; z-index: 2; }
.cta-band h2 { color: #fff; margin-bottom: 12px; }
.cta-band p { color: #aebdd9; max-width: 66ch; }
.cta-band .btn-row { margin-top: 24px; }
.cta-flex { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--ink); color: #94a3c1; padding: clamp(48px, 6vw, 72px) 0 0; font-size: 14.6px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.25fr; gap: clamp(24px, 3.4vw, 44px); padding-bottom: 42px; }
@media (max-width: 940px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { color: #fff; font-size: 15px; margin: 0 0 16px; }
.site-footer a { color: #94a3c1; }
.site-footer a:hover { color: #fff; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
.site-footer li { margin: 0; }
.footer-brand { display: flex; gap: 12px; align-items: center; margin-bottom: 16px; }
.footer-brand .brand__name { color: #fff; }
.footer-brand .brand__sub { color: #7b8bad; }
.footer-main-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 6px; padding: 9px 16px;
  border: 1px solid rgba(255,255,255,.22); border-radius: 999px; color: #ffb37a !important; font-weight: 600; font-size: 13.6px; }
.footer-main-link:hover { background: rgba(255,255,255,.08); color: #fff !important; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0 30px; display: flex;
  flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; font-size: 13.2px; color: #7b8bad; }
.footer-bottom a { color: #8b9cbd; }

/* ---------- 悬浮咨询 ---------- */
.fab { position: fixed; right: 20px; bottom: 20px; z-index: 80; display: grid; gap: 10px; }
.fab a, .fab button {
  width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center;
  background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); cursor: pointer;
  color: var(--ink); transition: transform .18s, box-shadow .18s, background .18s;
}
.fab a:hover, .fab button:hover { transform: translateY(-3px) scale(1.04); box-shadow: var(--shadow-l); background: var(--brand); color: #fff; }
.fab svg { width: 22px; height: 22px; }
.fab svg path, .fab svg rect, .fab svg circle, .fab svg line, .fab svg polyline, .fab svg polygon {
  stroke: currentColor; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.fab__top { opacity: 0; pointer-events: none; transition: opacity .2s; }
.fab__top.is-on { opacity: 1; pointer-events: auto; }
@media (max-width: 620px) { .fab { right: 14px; bottom: 14px; } .fab a, .fab button { width: 46px; height: 46px; } }

/* ---------- 可访问性 ---------- */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--brand); color: #fff; padding: 12px 20px;
  border-radius: 0 0 var(--radius-s) 0; font-weight: 600;
}
.skip-link:focus { left: 0; color: #fff; }

/* ---------- 动效 ---------- */
[data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .6s cubic-bezier(.2,.7,.3,1), transform .6s cubic-bezier(.2,.7,.3,1); }
[data-reveal].is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 打印 ---------- */
@media print {
  .site-header, .topbar, .fab, .cta-band, .site-footer { display: none !important; }
  body { color: #000; }
}

/* ==========================================================================
   内页新增组件：首页导流卡片 / 对比表 / 步骤时间线 / 行业详情
   ========================================================================== */

/* ---------- 首页：深入了解导流卡片 ---------- */
.more-nav { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
@media (max-width: 1000px) { .more-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .more-nav { grid-template-columns: 1fr; } }
.more-card { position: relative; display: flex; flex-direction: column; padding: 26px 22px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); color: inherit; overflow: hidden;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
.more-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 3px; background: var(--grad-brand);
  transform: scaleX(0); transform-origin: left; transition: transform .28s ease; }
.more-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-l); border-color: #d7deee; color: inherit; }
.more-card:hover::before { transform: scaleX(1); }
.more-card__ico { width: 46px; height: 46px; border-radius: 12px; background: var(--brand-soft); padding: 11px; margin-bottom: 14px; }
.more-card__ico svg { width: 100%; height: 100%; }
.more-card__ico svg path, .more-card__ico svg rect, .more-card__ico svg circle, .more-card__ico svg line,
.more-card__ico svg polyline, .more-card__ico svg polygon { stroke: var(--brand); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.more-card:hover .more-card__ico { background: var(--brand); }
.more-card:hover .more-card__ico svg path, .more-card:hover .more-card__ico svg rect, .more-card:hover .more-card__ico svg circle,
.more-card:hover .more-card__ico svg line, .more-card:hover .more-card__ico svg polyline, .more-card:hover .more-card__ico svg polygon { stroke: #fff; }
.more-card__tag { font-size: 11.5px; font-weight: 700; letter-spacing: .1em; color: var(--accent); }
.more-card b { font-size: 19px; color: var(--ink); margin: 4px 0 8px; }
.more-card p { font-size: 14.4px; color: var(--muted); margin: 0 0 16px; }
.more-card__go { margin-top: auto; font-size: 14px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: 6px; }
.more-card__go::after { content: "→"; transition: transform .2s; }
.more-card:hover .more-card__go::after { transform: translateX(4px); }

/* ---------- 对比表（常见做法 vs 筑傲做法） ---------- */
.cmp-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.cmp { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; font-size: 15px; min-width: 640px; }
.cmp thead th { background: var(--bg-soft); text-align: left; padding: 16px 20px;
  border-bottom: 1px solid var(--line); font-size: 13.5px; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
.cmp thead th:first-child { color: var(--ink); }
.cmp thead th:last-child { color: var(--brand); font-weight: 700; }
.cmp tbody th { text-align: left; padding: 18px 20px; color: var(--ink); font-weight: 600; font-size: 14.6px;
  white-space: nowrap; vertical-align: top; border-bottom: 1px solid var(--line); background: var(--bg-softer); }
.cmp tbody td { padding: 18px 20px 18px 44px; vertical-align: top; border-bottom: 1px solid var(--line);
  line-height: 1.7; color: var(--ink-3); position: relative; }
.cmp tbody tr:last-child th, .cmp tbody tr:last-child td { border-bottom: 0; }
.cmp td.is-common::before { content: "✕"; position: absolute; left: 20px; top: 18px; color: #c9d0dd; font-size: 13px; }
.cmp td.is-ours { color: var(--ink-2); background: linear-gradient(90deg, rgba(27,71,214,.05), transparent 72%); }
.cmp td.is-ours::before { content: "✓"; position: absolute; left: 20px; top: 17px; color: var(--brand); font-weight: 700; font-size: 14px; }

/* ---------- 步骤时间线 ---------- */
.steps { position: relative; display: grid; gap: 16px; }
.steps::before { content: ""; position: absolute; left: 27px; top: 14px; bottom: 14px; width: 2px;
  background: linear-gradient(var(--brand), #cfd9ee); opacity: .32; }
.step { position: relative; display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 20px; align-items: start; }
.step__n { position: relative; z-index: 2; width: 56px; height: 56px; border-radius: 50%; background: #fff;
  border: 2px solid var(--brand); color: var(--brand); font-family: var(--mono); font-weight: 700; font-size: 16px;
  display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-s); }
.step__body { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px;
  transition: border-color .2s, box-shadow .2s; }
.step__body:hover { border-color: #cfd9ee; box-shadow: var(--shadow); }
.step__head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 14px; margin-bottom: 8px; }
.step__head h3 { margin: 0; font-size: 19px; }
.step__meta { display: inline-flex; flex-wrap: wrap; gap: 6px; }
.step__meta span { font-size: 12.4px; color: var(--muted); background: var(--bg-soft);
  border: 1px solid var(--line); border-radius: 999px; padding: 3px 11px; }
.step__body p { font-size: 15px; color: var(--ink-3); margin: 0 0 14px; }
.step__out { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 0; padding: 0; list-style: none; }
.step__out::before { content: "交付物"; font-size: 12px; font-weight: 700; color: var(--accent); letter-spacing: .05em; }
.step__out li { margin: 0; font-size: 13.2px; color: var(--brand-dark); background: var(--brand-soft);
  border-radius: 7px; padding: 4px 11px; }
@media (max-width: 640px) {
  .steps::before { display: none; }
  .step { grid-template-columns: 1fr; gap: 10px; }
  .step__n { width: 46px; height: 46px; font-size: 14px; }
}

/* ---------- 行业详情卡 ---------- */
.ind-block { background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 26px 22px; transition: border-color .2s, box-shadow .2s, transform .2s; }
.ind-block:hover { border-color: #cfd9ee; box-shadow: var(--shadow); transform: translateY(-3px); }
.ind-block__head { display: flex; gap: 14px; align-items: center; margin-bottom: 18px; }
.ind-block__ico { width: 46px; height: 46px; flex: none; border-radius: 12px; background: var(--accent-soft); padding: 11px; }
.ind-block__ico svg { width: 100%; height: 100%; }
.ind-block__ico svg path, .ind-block__ico svg rect, .ind-block__ico svg circle, .ind-block__ico svg line,
.ind-block__ico svg polyline, .ind-block__ico svg polygon { stroke: var(--accent-dark); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.ind-block__head h3 { margin: 0 0 2px; font-size: 19px; }
.ind-block__head span { font-size: 13.4px; color: var(--muted); }
.ind-block h4 { font-size: 12.5px; letter-spacing: .07em; color: var(--accent); margin: 0 0 10px; font-weight: 700; }
.ind-block h4 ~ h4 { margin-top: 16px; }
.ind-block ul { list-style: none; padding: 0; margin: 0; }
.ind-block ul li { position: relative; padding-left: 20px; margin-bottom: 8px; font-size: 14.6px; color: var(--ink-3); }
.ind-block ul li::before { content: ""; position: absolute; left: 2px; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }
.ind-combo { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.ind-combo li { margin: 0; }
.ind-combo li::before { display: none; }
.ind-combo a { display: inline-block; font-size: 13.2px; color: var(--brand); background: var(--brand-soft);
  border-radius: 999px; padding: 5px 13px; transition: background .18s, color .18s; }
.ind-combo a:hover { background: var(--brand); color: #fff; }