/* =========================================================
   山西金信鸽装饰工程有限公司 · 官网样式
   金信鸽装饰 sxjxg.cn
   设计调性：金 · 墨 · 暖白   品质 / 稳重 / 专业
   ========================================================= */

:root {
  --gold: #c89b54;
  --gold-2: #a97c34;
  --gold-light: #f3e8d4;
  --ink: #1b1b1d;
  --ink-2: #3d3d40;
  --muted: #6e6e73;
  --muted-2: #9a9a9e;
  --bg: #ffffff;
  --bg-soft: #f7f4ef;
  --bg-soft-2: #faf8f5;
  --line: #e9e4db;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 12px rgba(27, 27, 29, .06);
  --shadow: 0 10px 34px rgba(27, 27, 29, .09);
  --shadow-lg: 0 22px 60px rgba(27, 27, 29, .14);
  --max: 1200px;
  --nav-h: 74px;
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

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

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font-family: inherit; font-size: inherit; outline: none; }
ul, ol { list-style: none; }

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

/* ---------- 通用文字 ---------- */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.3; letter-spacing: -.01em; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: .22em; color: var(--gold-2);
  text-transform: uppercase; font-weight: 600;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--gold); }

h1 { font-size: clamp(30px, 5vw, 54px); }
h2 { font-size: clamp(24px, 3.4vw, 38px); }
h3 { font-size: clamp(18px, 2vw, 22px); }

.sec { padding: clamp(56px, 8vw, 96px) 0; }
.sec-head { max-width: 720px; margin: 0 auto 44px; text-align: center; }
.sec-head .eyebrow::before { display: none; }
/* 标题间距兜底（页面内联样式已统一移除，避免贴边） */
.cta-box h2 { margin: 14px 0 16px; }
.founder__txt h2, .about-grid h2 { margin: 14px 0 18px; }
.side-tel .btn { margin-top: 22px; }
.contact-side .info-card h4 { margin-bottom: 12px; }
.sec-head h2 { margin: 14px 0 14px; }
.sec-head p { color: var(--muted); font-size: 16px; }
.sec--soft { background: var(--bg-soft); }
.sec--soft2 { background: var(--bg-soft-2); }
.center { text-align: center; }
.center .sec-head { margin-left: auto; margin-right: auto; }
.center .eyebrow::before { display: none; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 50px; padding: 0 28px; border-radius: 6px;
  font-size: 15px; font-weight: 600; letter-spacing: .02em;
  border: 1px solid transparent; cursor: pointer; transition: .25s;
}
.btn--primary { background: var(--gold); color: #fff; box-shadow: 0 8px 22px rgba(200, 155, 84, .32); }
.btn--primary:hover { background: var(--gold-2); transform: translateY(-2px); }
.btn--ghost { border-color: var(--line); color: var(--ink); background: #fff; }
.btn--ghost:hover { border-color: var(--gold); color: var(--gold-2); }
.btn--dark { background: var(--ink); color: #fff; }
.btn--dark:hover { background: #000; }
.btn--sm { height: 42px; padding: 0 20px; font-size: 14px; }
.btn--block { width: 100%; }

/* =========================================================
   顶部导航
   ========================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(233, 228, 219, .9);
  transition: .3s;
}
.nav--scrolled { box-shadow: 0 4px 24px rgba(27, 27, 29, .07); }
.nav__inner { height: 100%; display: flex; align-items: center; gap: 26px; }

.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo__mark { width: 42px; height: 42px; border-radius: 10px; object-fit: contain; display: block; }
.logo__txt b { display: block; font-size: 18px; letter-spacing: .06em; line-height: 1.2; }
.logo__txt span { display: block; font-size: 10px; letter-spacing: .3em; color: var(--muted-2); }

.nav__menu { display: flex; align-items: center; gap: 0; margin-left: auto; }
.nav__menu a {
  position: relative; padding: 8px 14px; font-size: 15px; color: var(--ink-2);
  border-radius: 6px; transition: .2s; white-space: nowrap;
}
.nav__menu a:hover, .nav__menu a.is-active { color: var(--gold-2); }
.nav__menu a.is-active::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px;
  height: 2px; background: var(--gold); border-radius: 2px;
}
.nav__cta { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.nav__tel-link {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 15.5px; font-weight: 700; color: var(--gold-2);
  letter-spacing: .02em; white-space: nowrap; transition: .2s;
}
.nav__tel-link:hover { color: var(--gold); }
.nav__tel-link svg { width: 17px; height: 17px; flex-shrink: 0; }
.nav__tel { font-size: 20px; font-weight: 700; color: var(--gold-2); letter-spacing: .02em; }
.nav__tel small { display: block; font-size: 11px; font-weight: 400; color: var(--muted-2); letter-spacing: .1em; }

/* 会员入口右侧分隔线与按钮间距 */
.nav__entry { display: flex; align-items: center; gap: 10px; padding-right: 14px; border-right: 1px solid var(--line); }
.nav__entry-btn {
  display: inline-flex; align-items: center; gap: 7px; height: 38px; padding: 0 14px;
  border: 1px solid var(--line); border-radius: 8px; background: #fff;
  font-size: 13.5px; font-weight: 600; color: var(--ink); white-space: nowrap; transition: .2s;
}
.nav__entry-btn:hover { border-color: var(--gold); color: var(--gold-2); }
.nav__entry-btn i {
  font-style: normal; width: 22px; height: 22px; border-radius: 50%;
  background: var(--gold-light); color: var(--gold-2);
  display: grid; place-items: center; font-size: 12px; font-weight: 700;
}
.nav__entry-link { font-size: 13px; color: var(--muted); white-space: nowrap; }
.nav__entry-link:hover { color: var(--gold-2); }

/* 右侧悬浮客服模块 */
.fab {
  position: fixed; right: 16px; bottom: 96px; z-index: 95;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.fab-main {
  width: 84px; height: 84px; border-radius: 50%;
  background: linear-gradient(150deg, var(--gold) 0%, var(--gold-2) 100%);
  color: #fff; display: grid; place-items: center;
  box-shadow: 0 10px 26px rgba(200, 155, 84, .5); transition: .25s;
  font-size: 14.5px; font-weight: 600; text-align: center; line-height: 1.25;
}
.fab-main:hover { transform: translateY(-3px); }
.fab-group {
  width: 66px; background: #fff; border: 1px solid var(--line);
  border-radius: 16px; box-shadow: var(--shadow); overflow: hidden;
}
.fab-group a, .fab-group button {
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  width: 100%; padding: 11px 0 10px; font-size: 11px; color: var(--ink-2);
  background: none; border: 0; border-bottom: 1px solid var(--line); cursor: pointer; transition: .15s;
}
.fab-group a:hover, .fab-group button:hover { background: var(--bg-soft-2); color: var(--gold-2); }
.fab-group > *:last-child { border-bottom: 0; }
.fab-group svg { width: 20px; height: 20px; }
.fab-top {
  width: 44px; height: 44px; border-radius: 50%;
  background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  display: grid; place-items: center; color: var(--ink-2); cursor: pointer; transition: .2s;
}
.fab-top:hover { color: var(--gold-2); border-color: var(--gold); }
.fab-top svg { width: 18px; height: 18px; }
.fab-wx-pop {
  display: none; position: absolute; right: 76px; bottom: 0;
  width: 316px; background: #fff; border-radius: 14px;
  box-shadow: var(--shadow-lg); border: 1px solid var(--line); padding: 16px;
}
.fab-wx-pop.is-open { display: block; }
.fab-wx-pop > b { font-size: 14px; }
.fab-qr-row { display: flex; gap: 10px; margin: 12px 0 10px; }
.fab-qr-row figure { flex: 1; margin: 0; min-width: 0; }
.fab-qr-row img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 10px; border: 1px solid var(--line); }
.fab-qr-row figcaption { font-size: 11.5px; color: var(--muted-2); text-align: center; margin-top: 6px; white-space: nowrap; }
.fab-wx-tip { display: block; font-size: 12px; color: var(--muted-2); border-top: 1px dashed var(--line); padding-top: 10px; }
.fab-wx-tip b { color: var(--gold-2); font-size: 13px; }

/* ---------------- AI 智能客服面板（小金） ---------------- */
.ai-chat {
  position: fixed; right: 84px; bottom: 24px; z-index: 999;
  width: 372px; max-width: calc(100vw - 32px); height: 552px; max-height: calc(100vh - 48px);
  background: #fff; border-radius: 18px; border: 1px solid var(--line);
  box-shadow: 0 24px 64px rgba(27, 27, 29, .22);
  display: flex; flex-direction: column; overflow: hidden;
  opacity: 0; visibility: hidden; transform: translateY(16px) scale(.97);
  transition: opacity .25s, transform .25s, visibility .25s;
}
.ai-chat.is-open { opacity: 1; visibility: visible; transform: none; }
.ai-chat__head {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px;
  background: linear-gradient(135deg, var(--ink) 0%, #33302b 100%); color: #fff; flex-shrink: 0;
}
.ai-chat__avatar {
  width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(150deg, var(--gold) 0%, var(--gold-2) 100%);
  color: #fff; font-weight: 700; font-size: 18px; display: grid; place-items: center;
  box-shadow: 0 4px 12px rgba(200, 155, 84, .45);
}
.ai-chat__tt { flex: 1; min-width: 0; }
.ai-chat__tt b { display: block; font-size: 15.5px; letter-spacing: .5px; }
.ai-chat__tt span { display: block; font-size: 11.5px; color: rgba(255, 255, 255, .62); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ai-chat__close {
  width: 30px; height: 30px; border: 0; border-radius: 50%; flex-shrink: 0;
  background: rgba(255, 255, 255, .12); color: #fff; font-size: 17px; line-height: 1;
  cursor: pointer; transition: .2s;
}
.ai-chat__close:hover { background: rgba(255, 255, 255, .24); }
.ai-chat__body {
  flex: 1; overflow-y: auto; padding: 16px 14px 8px;
  background: var(--soft); display: flex; flex-direction: column; gap: 12px;
}
.ai-msg { display: flex; align-items: flex-end; gap: 8px; max-width: 100%; }
.ai-msg--user { flex-direction: row-reverse; }
.ai-msg__av {
  width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(150deg, var(--gold) 0%, var(--gold-2) 100%);
  color: #fff; font-size: 13px; font-weight: 700; display: grid; place-items: center;
}
.ai-msg__bubble {
  max-width: 262px; padding: 10px 13px; border-radius: 14px; font-size: 13.5px; line-height: 1.65;
  background: #fff; border: 1px solid var(--line); color: var(--ink-2);
  box-shadow: 0 2px 8px rgba(27, 27, 29, .05); word-break: break-word;
}
.ai-msg--ai .ai-msg__bubble { border-bottom-left-radius: 4px; }
.ai-msg--user .ai-msg__bubble {
  background: linear-gradient(150deg, var(--gold) 0%, var(--gold-2) 100%);
  border-color: transparent; color: #fff; border-bottom-right-radius: 4px;
}
.ai-msg__bubble b { color: var(--ink); }
.ai-msg--user .ai-msg__bubble b { color: #fff; }
.ai-msg__bubble p { margin: 4px 0 0; color: var(--muted-2); }
.ai-msg__bubble hr { border: 0; border-top: 1px dashed var(--line); margin: 10px 0; }
.ai-msg__bubble a { color: var(--gold-2); font-weight: 600; }
.ai-dots i { display: inline-block; font-style: normal; animation: aiBlink 1.2s infinite; }
.ai-dots i:nth-child(2) { animation-delay: .2s; }
.ai-dots i:nth-child(3) { animation-delay: .4s; }
@keyframes aiBlink { 0%, 60%, 100% { opacity: .25; } 30% { opacity: 1; } }
.ai-chat__quick {
  display: flex; gap: 8px; padding: 10px 14px 4px; flex-wrap: wrap; flex-shrink: 0;
  background: var(--soft); border-top: 1px solid var(--line);
}
.ai-chat__quick button {
  padding: 6px 11px; font-size: 12px; color: var(--gold-2); cursor: pointer;
  background: #fff; border: 1px solid rgba(200, 155, 84, .4); border-radius: 999px; transition: .2s;
}
.ai-chat__quick button:hover { background: var(--gold); border-color: var(--gold); color: #fff; }
.ai-chat__input {
  display: flex; gap: 8px; padding: 10px 14px; flex-shrink: 0; background: #fff;
}
.ai-chat__input input {
  flex: 1; min-width: 0; height: 40px; padding: 0 14px; font-size: 13.5px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--soft); outline: 0; transition: .2s;
}
.ai-chat__input input:focus { border-color: var(--gold); background: #fff; }
.ai-chat__input button {
  height: 40px; padding: 0 18px; border: 0; border-radius: 999px; cursor: pointer;
  background: linear-gradient(150deg, var(--gold) 0%, var(--gold-2) 100%);
  color: #fff; font-size: 13.5px; font-weight: 600; box-shadow: 0 4px 14px rgba(200, 155, 84, .4); transition: .2s;
}
.ai-chat__input button:hover { transform: translateY(-1px); }
.ai-chat__foot {
  display: flex; align-items: stretch; gap: 10px; padding: 10px 14px 12px; flex-shrink: 0;
  border-top: 1px solid var(--line); background: #fff;
}
.ai-chat__tel {
  flex: 1; display: flex; align-items: center; gap: 10px; min-width: 0;
  padding: 8px 12px; border-radius: 12px; text-decoration: none;
  background: var(--soft); border: 1px solid var(--line); transition: .2s;
}
.ai-chat__tel:hover { border-color: var(--gold); background: #fff; }
.ai-chat__tel svg { width: 20px; height: 20px; color: var(--gold-2); flex-shrink: 0; }
.ai-chat__tel span { min-width: 0; }
.ai-chat__tel b { display: block; font-size: 15px; color: var(--ink); letter-spacing: .5px; }
.ai-chat__tel i { display: block; font-style: normal; font-size: 11px; color: var(--muted-2); margin-top: 1px; }
.ai-chat__qr {
  display: flex; flex-direction: column; align-items: center; gap: 4px; flex-shrink: 0;
  width: 74px; padding: 6px 4px; border: 1px solid var(--line); border-radius: 12px;
  background: #fff; cursor: pointer; transition: .2s;
}
.ai-chat__qr:hover { border-color: var(--gold); box-shadow: 0 4px 12px rgba(200, 155, 84, .18); }
.ai-chat__qr img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 8px; }
.ai-chat__qr span { font-size: 11px; color: var(--muted-2); white-space: nowrap; }
/* 二维码放大浮层 */
.ai-qr-big {
  position: fixed; inset: 0; z-index: 1001; display: grid; place-items: center;
  background: rgba(27, 27, 29, .62); opacity: 0; visibility: hidden; transition: .25s;
}
.ai-qr-big.is-open { opacity: 1; visibility: visible; }
.ai-qr-big__box {
  width: 300px; padding: 26px 22px 20px; text-align: center;
  background: #fff; border-radius: 20px; box-shadow: 0 24px 64px rgba(0, 0, 0, .3);
}
.ai-qr-big__box img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 14px; border: 1px solid var(--line); }
.ai-qr-big__box b { display: block; font-size: 15.5px; margin-top: 14px; }
.ai-qr-big__box span { display: block; font-size: 13px; color: var(--gold-2); margin-top: 4px; }
.nav__menu .mob-only { display: none; }

.nav__burger { display: none; width: 42px; height: 42px; border: 1px solid var(--line);
  background: #fff; border-radius: 8px; cursor: pointer; margin-left: auto; }
.nav__burger span { display: block; width: 18px; height: 2px; background: var(--ink); margin: 3px auto; transition: .25s; }
.nav__burger.is-open span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative; padding: calc(var(--nav-h) + 72px) 0 72px;
  background: linear-gradient(160deg, #fffaf3 0%, #fff 46%, #f7f4ef 100%);
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; right: -160px; top: -120px;
  width: 620px; height: 620px; border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 155, 84, .16) 0%, rgba(200, 155, 84, 0) 68%);
}
.hero::after {
  content: ""; position: absolute; left: -220px; bottom: -220px;
  width: 520px; height: 520px; border-radius: 50%;
  background: radial-gradient(circle, rgba(27, 27, 29, .05) 0%, rgba(27, 27, 29, 0) 70%);
}
.hero__inner { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: stretch; }

.badge-pill {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 22px;
  padding: 7px 16px 7px 8px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  font-size: 13px; color: var(--ink-2);
}
.badge-pill i { font-style: normal; background: var(--gold); color: #fff;
  padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }

.hero__txt { container-type: inline-size; }
.hero h1 { margin-bottom: 20px; font-size: clamp(20px, 5vw, 44px); font-size: clamp(19px, 6.6cqw, 46px); line-height: 1.5; }
.hero h1 .hl { white-space: nowrap; }
.hero h1 em { font-style: normal; color: var(--gold-2); position: relative; z-index: 0; }
.hero h1 em::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 6px; height: 10px;
  background: rgba(200, 155, 84, .22); z-index: -1; border-radius: 3px;
}
.hero__lead { font-size: 17px; color: var(--muted); max-width: 540px; margin-bottom: 32px; }
.hero__btns { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 40px; }

.hero__stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; max-width: 560px; }
.hero__stats div { padding-right: 12px; border-left: 2px solid var(--gold); padding-left: 14px; }
.hero__stats b { display: block; font-size: 26px; line-height: 1.2; color: var(--ink); }
.hero__stats b span { font-size: 14px; font-weight: 600; color: var(--gold-2); }
.hero__stats span { font-size: 12px; color: var(--muted-2); letter-spacing: .04em; }

/* Hero 视觉 */
.hero__visual { position: relative; height: 100%; display: flex; flex-direction: column; }
.hero__card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg); background: var(--ink); flex: 1;
}
.hero__card img, .hero__card .ph { width: 100%; height: 100%; min-height: 400px; object-fit: cover; display: block; }
.hero__card::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(20, 18, 16, .58), rgba(20, 18, 16, 0) 52%);
}
.hero__cap {
  position: absolute; left: 22px; right: 22px; bottom: 20px; z-index: 2; color: #fff;
}
.hero__cap b { font-size: 17px; display: block; }
.hero__cap span { font-size: 13px; opacity: .82; }

.float-card {
  position: absolute; right: -18px; top: 40px; z-index: 3;
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 16px 20px; min-width: 168px;
}
.float-card b { display: block; font-size: 22px; color: var(--gold-2); line-height: 1.2; }
.float-card span { font-size: 12px; color: var(--muted); }
.float-card--b { right: auto; left: -22px; top: auto; bottom: 34px; }
.float-card--b b { font-size: 15px; color: var(--ink); }
.float-card--b i { font-style: normal; color: var(--gold-2); font-weight: 600; }

/* =========================================================
   三业务卡
   ========================================================= */
.biz { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.biz__item--hot { border: 2px solid var(--gold); box-shadow: 0 16px 44px rgba(200, 155, 84, .30); }
.biz__thumb {
  position: relative; height: 152px; margin: -34px -30px 22px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0; overflow: hidden;
}
.biz__thumb svg { display: block; width: 100%; height: 100%; }
.biz__thumb-cap {
  position: absolute; left: 16px; bottom: 12px; font-size: 12px; font-weight: 600;
  color: #fff; padding: 4px 12px; border-radius: 999px;
  background: rgba(27, 27, 29, .38); letter-spacing: .02em;
}
.biz__item {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 34px 30px 30px; overflow: hidden;
  transition: .3s;
}
.biz__item:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.biz__item--hot { background: linear-gradient(168deg, #bd9252 0%, #9a7440 52%, #7d5c2d 100%); border-color: transparent; color: #fff; box-shadow: 0 18px 46px rgba(154, 116, 64, .38); }
.biz__item.biz__item--hot h3 { color: #fff; }
.biz__item.biz__item--hot p { color: #fff; }
.biz__item.biz__item--hot li { color: rgba(255, 255, 255, .94); }
.biz__item--hot .biz__tag { background: #fff; color: #8a6529; }
.biz__item--hot .biz__icon { background: rgba(255, 255, 255, .18); color: #fff; }
.biz__item--hot .biz__list li::before { background: rgba(255, 255, 255, .75); }
.biz__item--hot .biz__meta { border-top-color: rgba(255, 255, 255, .28); }
.biz__item--hot .biz__meta b { color: #fff; }
.biz__icon {
  width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center;
  background: var(--gold-light); color: var(--gold-2); margin-bottom: 20px;
}
.biz__icon svg { width: 28px; height: 28px; }
.biz__tag {
  position: absolute; top: 0; right: 0; font-size: 12px; font-weight: 600;
  padding: 5px 14px; border-radius: 0 var(--radius-lg) 0 12px;
  background: var(--gold-light); color: var(--gold-2);
}
.biz__item h3 { margin-bottom: 8px; font-size: 21px; }
.biz__item > p { color: var(--muted); font-size: 14.5px; margin-bottom: 18px; }
.biz__list li { position: relative; padding-left: 18px; font-size: 14px; color: var(--ink-2); margin-bottom: 7px; }
.biz__list li::before {
  content: ""; position: absolute; left: 0; top: 11px; width: 6px; height: 6px;
  border-radius: 50%; background: var(--gold);
}
.biz__meta {
  display: flex; gap: 22px; margin-top: 22px; padding-top: 18px;
  border-top: 1px dashed rgba(0, 0, 0, .1); font-size: 13px; color: var(--muted);
}
.biz__meta b { color: var(--gold-2); font-size: 16px; }

/* =========================================================
   优势 / 为什么选我们
   ========================================================= */
.adv { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.adv__item { background: #fff; border-radius: var(--radius); padding: 28px 24px; border: 1px solid var(--line); transition: .3s; }
.adv__item:hover { border-color: var(--gold); box-shadow: var(--shadow-sm); }
.adv__num { font-size: 13px; font-weight: 700; color: var(--gold); letter-spacing: .1em; margin-bottom: 12px; }
.adv__item h4 { font-size: 17px; margin-bottom: 8px; }
.adv__item p { font-size: 14px; color: var(--muted); }

/* 服务流程 */
.flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; position: relative; }
.flow__item { position: relative; padding: 0 16px; text-align: center; }
.flow__item:not(:last-child)::after {
  content: ""; position: absolute; top: 26px; right: -6px; width: 12px; height: 12px;
  border-top: 2px solid var(--gold); border-right: 2px solid var(--gold);
  transform: rotate(45deg); opacity: .55;
}
.flow__dot {
  width: 54px; height: 54px; margin: 0 auto 16px; border-radius: 50%;
  display: grid; place-items: center; font-size: 17px; font-weight: 700;
  background: #fff; border: 2px solid var(--gold); color: var(--gold-2);
}
.flow__item h4 { font-size: 15.5px; margin-bottom: 6px; }
.flow__item p { font-size: 13px; color: var(--muted); }

/* =========================================================
   案例
   ========================================================= */
.filters { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 34px; }
.filters button {
  padding: 9px 22px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; color: var(--ink-2); font-size: 14px; cursor: pointer; transition: .2s;
}
.filters button:hover { border-color: var(--gold); }
.filters button.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }

.cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case {
  background: #fff; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line); transition: .3s; cursor: pointer;
}
.case:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.case__img { position: relative; height: 236px; overflow: hidden; background: var(--bg-soft); }
.case__img .ph { width: 100%; height: 100%; }
.case__img img { width: 100%; height: 100%; object-fit: cover; transition: .5s; }
.case:hover .case__img img { transform: scale(1.06); }
.case__badge {
  position: absolute; left: 14px; top: 14px; z-index: 2;
  background: rgba(27, 27, 29, .78); color: #fff; font-size: 12px;
  padding: 4px 12px; border-radius: 999px; backdrop-filter: blur(4px);
}
.case__year { position: absolute; right: 14px; top: 14px; z-index: 2;
  background: var(--gold); color: #fff; font-size: 12px; font-weight: 600;
  padding: 4px 12px; border-radius: 999px; }
.case__body { padding: 20px 22px 24px; }
.case__body h4 { font-size: 17px; margin-bottom: 6px; }
.case__meta { font-size: 13px; color: var(--muted-2); margin-bottom: 12px; }
.case__desc { font-size: 14px; color: var(--muted); }
.case__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.case__tags span {
  font-size: 12px; color: var(--gold-2); background: var(--gold-light);
  padding: 3px 10px; border-radius: 4px;
}

/* 占位图（等比纯色 + 文字，替换为实景图即可） */
.ph {
  display: grid; place-items: center; text-align: center;
  background: linear-gradient(140deg, #efe8dd 0%, #e2dacd 55%, #d6cdbd 100%);
  color: #9a8f7d; font-size: 13px; letter-spacing: .08em;
}
.ph--a { background: linear-gradient(140deg, #f1ece5 0%, #ded5c8 100%); }
.ph--b { background: linear-gradient(140deg, #eceadf 0%, #d8d6c6 100%); }
.ph--c { background: linear-gradient(140deg, #f0eae0 0%, #ddd2c2 100%); }
.ph--dark { background: linear-gradient(140deg, #2b2926 0%, #443f38 100%); color: #b7ac9b; }
.ph span { display: block; font-size: 11px; opacity: .7; margin-top: 6px; }

/* =========================================================
   客户评价
   ========================================================= */
.quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.quote { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px 28px; }
.quote__mark { font-size: 42px; line-height: 1; color: var(--gold); font-family: Georgia, serif; }
.quote p { font-size: 15px; color: var(--ink-2); margin: 12px 0 20px; }
.quote__who { display: flex; align-items: center; gap: 12px; font-size: 13.5px; }
.quote__who i {
  font-style: normal; width: 38px; height: 38px; border-radius: 50%;
  background: var(--gold-light); color: var(--gold-2); display: grid; place-items: center; font-weight: 700;
}
.quote__who b { display: block; font-size: 14px; }
.quote__who span { color: var(--muted-2); font-size: 12.5px; }

/* =========================================================
   创始人
   ========================================================= */
.founder { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: center; }
.founder__pic { position: relative; }
.founder__pic .ph, .founder__pic img { height: 440px; width: 100%; object-fit: cover; border-radius: var(--radius-lg); }
.founder__sign {
  position: absolute; left: 24px; bottom: 24px; right: 24px;
  background: rgba(255, 255, 255, .95); border-radius: var(--radius);
  padding: 16px 20px; box-shadow: var(--shadow);
}
.founder__sign b { display: block; font-size: 17px; }
.founder__sign span { font-size: 12.5px; color: var(--muted); }
.founder__txt p { color: var(--muted); margin-bottom: 16px; font-size: 15.5px; }
.founder__list { margin: 24px 0 30px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.founder__list li { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 18px; font-size: 14px; }
.founder__list b { color: var(--gold-2); }

/* =========================================================
   预约表单 / CTA
   ========================================================= */
.cta-box {
  display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center;
  background: linear-gradient(140deg, #1e1d1b 0%, #35322c 100%);
  border-radius: 26px; padding: clamp(34px, 5vw, 60px); color: #fff; overflow: hidden; position: relative;
}
.cta-box::before {
  content: ""; position: absolute; right: -80px; bottom: -120px; width: 380px; height: 380px;
  border-radius: 50%; background: radial-gradient(circle, rgba(200, 155, 84, .22), transparent 70%);
}
.cta-box h2 { color: #fff; margin: 14px 0 16px; }
.cta-box p { color: rgba(255, 255, 255, .72); margin-bottom: 26px; }
.cta-box .eyebrow { color: var(--gold); }
.cta-list { display: grid; gap: 12px; }
.cta-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 14.5px; color: rgba(255, 255, 255, .85); }
.cta-list i {
  font-style: normal; flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%;
  background: rgba(200, 155, 84, .24); color: var(--gold); display: grid; place-items: center;
  font-size: 12px; margin-top: 3px;
}

.form { position: relative; background: #fff; border-radius: var(--radius-lg); padding: 30px; box-shadow: var(--shadow-lg); }
.form h4 { font-size: 19px; margin-bottom: 4px; }
.form > span { font-size: 13px; color: var(--muted-2); display: block; margin-bottom: 20px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 12.5px; color: var(--muted); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--bg-soft-2); transition: .2s; color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--gold); background: #fff; }
.field select { text-overflow: ellipsis; white-space: nowrap; }
.field textarea { resize: vertical; min-height: 88px; }
.form__agree { font-size: 12px; color: var(--muted-2); margin: 6px 0 14px; }
.form__ok { display: none; text-align: center; padding: 26px 0; }
.form__ok b { display: block; font-size: 18px; margin-bottom: 6px; }
.form__ok span { font-size: 13.5px; color: var(--muted); }

/* =========================================================
   页脚
   ========================================================= */
.footer { background: #17161a; color: rgba(255, 255, 255, .6); padding: 64px 0 0; }
.footer__top { display: grid; grid-template-columns: 1.4fr .9fr .9fr .9fr 1fr; gap: 32px; padding-bottom: 44px; }
.footer h5 { color: #fff; font-size: 15px; margin-bottom: 18px; }
.footer li { font-size: 14px; margin-bottom: 10px; }
.footer a:hover { color: var(--gold); }
.footer__logo { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; color: #fff; }
.footer__logo b { font-size: 18px; letter-spacing: .06em; }
.footer p { font-size: 14px; max-width: 320px; }
.footer__contact { margin-top: 18px; font-size: 14px; }
.footer__contact b { color: var(--gold); font-size: 22px; display: block; letter-spacing: .02em; }
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); padding: 20px 0 24px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12.5px;
}

/* =========================================================
   移动端底部悬浮条
   ========================================================= */
.mbar {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 99;
  background: #fff; border-top: 1px solid var(--line);
  box-shadow: 0 -6px 20px rgba(27, 27, 29, .08); padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
}
.mbar__in { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.mbar__in a {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  height: 50px; border-radius: 10px; font-size: 12px; color: var(--ink-2);
}
.mbar__in a svg { width: 20px; height: 20px; }
.mbar__in a.is-main { background: var(--gold); color: #fff; }

/* =========================================================
   页面内页头部
   ========================================================= */
.pagehead {
  padding: calc(var(--nav-h) + 56px) 0 48px;
  background: linear-gradient(160deg, #fffaf3, #f7f4ef);
  border-bottom: 1px solid var(--line); text-align: center;
}
.pagehead p { color: var(--muted); max-width: 640px; margin: 12px auto 0; }
.crumb { font-size: 13px; color: var(--muted-2); margin-bottom: 14px; }
.crumb a:hover { color: var(--gold-2); }

/* 服务详情 */
.svc { display: grid; gap: 26px; }
.svc__row { display: grid; grid-template-columns: 300px 1fr; gap: 34px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px; }
.svc__row:nth-child(even) { grid-template-columns: 1fr 300px; }
.svc__row:nth-child(even) .svc__pic { order: 2; }
.svc__pic { border-radius: var(--radius); overflow: hidden; }
.svc__pic .ph, .svc__pic img { height: 220px; width: 100%; object-fit: cover; }
.svc__txt h3 { margin-bottom: 10px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.svc__txt h3 small { font-size: 12px; font-weight: 600; color: var(--gold-2); background: var(--gold-light); padding: 4px 10px; border-radius: 4px; }
.svc__txt p { color: var(--muted); font-size: 15px; margin-bottom: 14px; }
.svc__points { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 18px; }
.svc__points li { position: relative; padding-left: 18px; font-size: 14px; color: var(--ink-2); }
.svc__points li::before { content: ""; position: absolute; left: 0; top: 10px; width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }

/* 关于页 */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.about-grid p { color: var(--muted); margin-bottom: 14px; }
.timeline { border-left: 2px solid var(--line); padding-left: 26px; }
.timeline li { position: relative; padding-bottom: 26px; }
.timeline li::before {
  content: ""; position: absolute; left: -33px; top: 6px; width: 12px; height: 12px;
  border-radius: 50%; background: #fff; border: 3px solid var(--gold);
}
.timeline b { display: block; font-size: 15px; }
.timeline span { font-size: 13.5px; color: var(--muted); }

.certs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cert { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; text-align: center; }
.cert svg { width: 30px; height: 30px; color: var(--gold-2); margin-bottom: 10px; }
.cert b { display: block; font-size: 14.5px; }
.cert span { font-size: 12.5px; color: var(--muted-2); }

/* 联系页 */
.contact-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 32px; align-items: start; }
.contact-side { display: grid; gap: 20px; align-content: start; }
.side-tel {
  background: linear-gradient(140deg, #1e1d1b 0%, #35322c 100%);
  color: #fff; border-radius: var(--radius-lg); padding: 30px;
}
.side-tel h3 { color: #fff; font-size: 21px; margin: 12px 0 18px; }
.side-tel__num { font-size: 34px; font-weight: 700; color: var(--gold); letter-spacing: .02em; }
.side-tel__sub { font-size: 13px; color: rgba(255, 255, 255, .6); margin: 6px 0 20px; }
.kv li { display: flex; justify-content: space-between; gap: 16px; padding: 9px 0;
  border-bottom: 1px dashed var(--line); font-size: 14px; }
.kv li:last-child { border-bottom: 0; padding-bottom: 0; }
.kv span { color: var(--muted-2); flex-shrink: 0; }
.kv b { font-weight: 600; text-align: right; }
.info-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; margin-bottom: 20px; }
.info-card h4 { margin-bottom: 14px; font-size: 17px; }
.info-card p { font-size: 14.5px; color: var(--muted); margin-bottom: 6px; }
.info-card b { color: var(--ink); font-size: 15px; }
.map-ph { height: 260px; border-radius: var(--radius); }

/* FAQ（联系页 + 问答库页共用） */
.faq { max-width: 820px; margin: 0 auto; }
.faq__item { border-bottom: 1px solid var(--line); background: #fff; border-radius: 12px; margin-bottom: 10px; padding: 0 22px; transition: .2s; }
.faq__item:hover { box-shadow: var(--shadow-sm); }
.faq__q { width: 100%; background: none; border: 0; text-align: left; cursor: pointer;
  padding: 17px 34px 17px 0; font-size: 15.5px; font-weight: 600; position: relative; color: var(--ink); line-height: 1.5; }
.faq__q::after {
  content: ""; position: absolute; right: 6px; top: 24px; width: 9px; height: 9px;
  border-right: 2px solid var(--gold-2); border-bottom: 2px solid var(--gold-2);
  transform: rotate(45deg); transition: .25s;
}
.faq__item.is-open .faq__q::after { transform: rotate(-135deg); top: 26px; }
.faq__a { display: none; padding: 0 40px 20px 0; font-size: 14.5px; color: var(--muted); line-height: 1.8; }
.faq__item.is-open .faq__a { display: block; }

/* 知识问答库页 */
.faq-search { max-width: 640px; margin: 26px auto 0; display: flex; gap: 10px; }
.faq-search input { flex: 1; padding: 13px 20px; border: 1px solid var(--line); border-radius: 999px; background: #fff; font-size: 14.5px; }
.faq-search input:focus { border-color: var(--gold); }
.faq-search .btn { border-radius: 999px; }
.faq-cats { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin: 24px 0 8px; }
.faq-cats button { padding: 9px 18px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-size: 13.5px; cursor: pointer; color: var(--ink-2); transition: .2s; }
.faq-cats button:hover { border-color: var(--gold); }
.faq-cats button.is-active { background: var(--ink); color: #fff; border-color: var(--ink); }
.faq-count { text-align: center; font-size: 13px; color: var(--muted-2); margin: 6px 0 22px; }
.faq-group-title { display: flex; align-items: center; gap: 12px; margin: 34px 0 14px; font-size: 19px; font-weight: 700; }
.faq-group-title i { font-style: normal; width: 34px; height: 34px; border-radius: 10px;
  background: var(--gold-light); color: var(--gold-2); display: grid; place-items: center; font-size: 15px; flex-shrink: 0; }
.faq-group-title small { font-size: 12.5px; color: var(--muted-2); font-weight: 400; }
.faq-hl { color: var(--gold-2); background: rgba(200, 155, 84, .2); border-radius: 2px; padding: 0 1px; }
.faq-more {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  width: 100%; max-width: 820px; margin: 4px auto 8px; padding: 12px;
  background: #fff; border: 1px dashed var(--gold); border-radius: 12px;
  font-size: 14px; font-weight: 600; color: var(--gold-2); cursor: pointer; transition: .2s;
}
.faq-more:hover { background: var(--gold-light); border-style: solid; }
.faq-more i { font-style: normal; font-size: 12px; transition: .2s; }
.faq-more.is-open i { transform: rotate(180deg); }

/* 服务区域 */
.areas { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.areas span { padding: 8px 18px; border: 1px solid var(--line); border-radius: 999px; font-size: 14px; background: #fff; }
.areas span.is-main { background: var(--ink); color: #fff; border-color: var(--ink); }

/* 提示条 */
.notice {
  background: #fff8ec; border: 1px dashed var(--gold); color: var(--gold-2);
  border-radius: 10px; padding: 12px 18px; font-size: 13.5px; margin-bottom: 26px;
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero__visual { max-width: 620px; }
  .cases, .quotes { grid-template-columns: repeat(2, 1fr); }
  .adv { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); gap: 30px 0; }
  .flow__item:not(:last-child)::after { display: none; }
  .founder, .cta-box, .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .certs { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .nav__menu {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: stretch; gap: 0; padding: 10px 20px 20px;
    transform: translateY(-14px); opacity: 0; pointer-events: none; transition: .25s;
    box-shadow: var(--shadow);
  }
  .nav__menu.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav__menu a { padding: 14px 4px; border-bottom: 1px solid var(--line); font-size: 16px; }
  .nav__menu a.is-active::after { display: none; }
  .nav__menu a.mob-only { display: block; }
  .nav__cta { display: none; }
  .nav__burger { display: block; }
  .fab { right: 10px; bottom: 160px; }
  .fab-group { width: 60px; }
  .fab-group a.fab-tel, .fab-main { display: none; }
  body { padding-bottom: 76px; }
  .mbar { display: block; }
  /* AI 客服面板：手机端全屏化 */
  .ai-chat {
    right: 0; bottom: 0; width: 100vw; height: 100vh; max-height: none;
    border-radius: 0; border: 0; transform: translateY(24px);
  }
  .ai-chat.is-open { transform: none; }
  .ai-msg__bubble { max-width: 240px; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 18px; }
  .hero { padding: calc(var(--nav-h) + 40px) 0 56px; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 18px 8px; }
  .hero__card img, .hero__card .ph { height: 320px; }
  .float-card { right: 8px; top: 16px; min-width: 140px; padding: 12px 14px; }
  .float-card--b { left: 8px; bottom: 16px; }
  .cases, .quotes, .adv, .certs { grid-template-columns: 1fr; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .svc__row, .svc__row:nth-child(even) { grid-template-columns: 1fr; gap: 18px; }
  .svc__row:nth-child(even) .svc__pic { order: 0; }
  .svc__pic .ph, .svc__pic img { height: 200px; }
  .svc__points { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; gap: 30px; }
  .founder__list { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; }
  h1 { font-size: 28px; }
  .biz__item { padding: 26px 22px; }
  .biz__thumb { height: 128px; margin: -26px -22px 18px; }
  .quote { padding: 24px 20px; }
}

@media (max-width: 420px) {
  .hero__btns .btn { width: 100%; }
  .filters button { padding: 8px 14px; font-size: 13px; }
}