/* =========================================================
   北京IFC国际财源中心 · 招商官网
   全局样式 — 浅色简约科技风
   ========================================================= */

/* ---------- 设计令牌 ---------- */
:root {
  --bg: #f4f7fc;
  --bg-soft: #eef3fb;
  --surface: #ffffff;
  --surface-2: #f8fafd;

  --ink: #0a1a30;
  --ink-2: #24384f;
  --muted: #5b6b85;
  --faint: #8fa0bb;

  --brand: #1e6bff;
  --brand-2: #12c2e9;
  --brand-ink: #0b4bcc;
  --grad: linear-gradient(135deg, #1e6bff 0%, #12c2e9 100%);
  --grad-soft: linear-gradient(135deg, rgba(30,107,255,.12), rgba(18,194,233,.12));

  --line: rgba(10, 26, 48, .09);
  --line-strong: rgba(10, 26, 48, .16);

  --shadow-sm: 0 2px 8px rgba(10, 26, 48, .05);
  --shadow: 0 12px 30px -12px rgba(10, 26, 48, .16);
  --shadow-lg: 0 30px 60px -24px rgba(10, 26, 48, .24);
  --glow: 0 18px 40px -16px rgba(30, 107, 255, .45);

  --r-sm: 10px;
  --r: 16px;
  --r-lg: 22px;
  --r-xl: 30px;

  --wrap: 1200px;
  --pad: clamp(20px, 5vw, 40px);

  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* 全局科技感网格底纹 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(10, 26, 48, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 26, 48, .035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 78%);
}

img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
dl, dd { margin: 0; }

::selection { background: rgba(30, 107, 255, .18); }

/* ---------- 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
  position: relative;
  z-index: 1;
}

.section { padding: clamp(64px, 9vw, 110px) 0; position: relative; z-index: 1; }
.section--tight { padding: clamp(48px, 6vw, 72px) 0; }
.section--soft { background: linear-gradient(180deg, #ffffff 0%, var(--bg-soft) 100%); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .14em;
  color: var(--brand-ink); text-transform: uppercase;
  background: var(--grad-soft);
  border: 1px solid rgba(30, 107, 255, .18);
  padding: 7px 14px; border-radius: 999px;
  margin-bottom: 18px;
}
.eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--grad); box-shadow: 0 0 0 4px rgba(30, 107, 255, .14);
}

h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .6em; letter-spacing: -.01em; font-weight: 700; }
h1 { font-size: clamp(30px, 5.2vw, 54px); }
h2 { font-size: clamp(26px, 3.6vw, 40px); }
h3 { font-size: clamp(19px, 2.2vw, 23px); }
h4 { font-size: 17px; }
p { margin: 0 0 1em; color: var(--ink-2); }

.lead { font-size: clamp(16px, 1.6vw, 19px); color: var(--muted); max-width: 62ch; }
.text-grad {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.section-head { max-width: 720px; margin-bottom: clamp(32px, 4vw, 52px); }
.section-head--center { margin-inline: auto; text-align: center; }

/* ---------- 按钮 ---------- */
.btn {
  --btn-bg: var(--grad);
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 14px 26px; border-radius: 999px;
  font-size: 15px; font-weight: 600; white-space: nowrap;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .3s;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn--primary { background: var(--grad); color: #fff; box-shadow: var(--glow); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 22px 46px -14px rgba(30, 107, 255, .55); }
.btn--ghost {
  background: rgba(255, 255, 255, .7); color: var(--ink);
  border: 1px solid var(--line-strong); backdrop-filter: blur(8px);
}
.btn--ghost:hover { border-color: var(--brand); color: var(--brand-ink); transform: translateY(-2px); }
.btn--block { width: 100%; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: rgba(255, 255, 255, .78);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, border-color .3s, background .3s;
}
.site-header.is-stuck {
  box-shadow: 0 8px 30px -18px rgba(10, 26, 48, .35);
  border-bottom-color: var(--line);
  background: rgba(255, 255, 255, .9);
}
.nav {
  display: flex; align-items: center; gap: 22px;
  height: 74px;
}
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand__mark {
  width: 42px; height: 42px; border-radius: 12px; flex: none;
  background: var(--grad); display: grid; place-items: center;
  color: #fff; font-weight: 800; font-size: 15px; letter-spacing: .02em;
  box-shadow: var(--glow);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name { font-weight: 700; font-size: 16px; letter-spacing: .01em; }
.brand__sub { font-size: 11px; color: var(--faint); letter-spacing: .16em; text-transform: uppercase; }

.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__links a {
  padding: 9px 15px; border-radius: 999px; font-size: 15px; font-weight: 500;
  color: var(--ink-2); transition: background .25s, color .25s;
}
.nav__links a:hover { background: var(--bg-soft); color: var(--brand-ink); }
.nav__links a.is-active { color: var(--brand-ink); background: var(--grad-soft); }

.nav__cta { display: flex; align-items: center; gap: 12px; }
.nav__phone {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 15px; color: var(--ink);
  padding: 9px 14px; border-radius: 999px;
  border: 1px solid var(--line-strong); background: rgba(255,255,255,.7);
  transition: border-color .25s, color .25s;
}
.nav__phone:hover { border-color: var(--brand); color: var(--brand-ink); }
.nav__phone svg { width: 16px; height: 16px; color: var(--brand); }

.nav__toggle {
  display: none; width: 44px; height: 44px; border-radius: 12px;
  border: 1px solid var(--line); background: #fff; place-items: center;
}
.nav__toggle span {
  display: block; width: 18px; height: 2px; border-radius: 2px;
  background: var(--ink); position: relative; transition: .3s var(--ease);
}
.nav__toggle span::before, .nav__toggle span::after {
  content: ""; position: absolute; left: 0; width: 18px; height: 2px; border-radius: 2px;
  background: var(--ink); transition: .3s var(--ease);
}
.nav__toggle span::before { top: -6px; }
.nav__toggle span::after { top: 6px; }
.nav__toggle.is-open span { background: transparent; }
.nav__toggle.is-open span::before { top: 0; transform: rotate(45deg); }
.nav__toggle.is-open span::after { top: 0; transform: rotate(-45deg); }

/* 移动端抽屉 */
.drawer {
  position: fixed; top: 74px; left: 0; right: 0; z-index: 99;
  background: rgba(255, 255, 255, .97);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  padding: 12px var(--pad) 26px;
  transform: translateY(-14px); opacity: 0; visibility: hidden;
  transition: transform .35s var(--ease), opacity .3s, visibility .3s;
  box-shadow: var(--shadow-lg);
}
.drawer.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
.drawer a {
  display: block; padding: 15px 4px; font-size: 17px; font-weight: 600;
  border-bottom: 1px solid var(--line);
}
.drawer a.is-active { color: var(--brand-ink); }
.drawer .btn { margin-top: 18px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; padding-top: clamp(120px, 16vw, 170px);
  padding-bottom: clamp(60px, 8vw, 96px); overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; z-index: 0;
  width: 620px; height: 620px; right: -180px; top: -160px;
  background: radial-gradient(circle, rgba(30, 107, 255, .22), transparent 62%);
  border-radius: 50%; filter: blur(10px); animation: floaty 14s ease-in-out infinite;
}
.hero::before {
  content: ""; position: absolute; z-index: 0;
  width: 480px; height: 480px; left: -160px; bottom: -200px;
  background: radial-gradient(circle, rgba(18, 194, 233, .2), transparent 62%);
  border-radius: 50%; animation: floaty 18s ease-in-out infinite reverse;
}
@keyframes floaty {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, 26px, 0); }
}

.hero__grid {
  display: grid; grid-template-columns: 1.08fr .92fr;
  gap: clamp(30px, 5vw, 64px); align-items: center;
}
.hero h1 { margin-bottom: 20px; }
.hero .lead { margin-bottom: 30px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }

.hero__stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 18px; padding-top: 28px; border-top: 1px solid var(--line);
}
.stat__num {
  font-size: clamp(24px, 3vw, 32px); font-weight: 800;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; line-height: 1.2;
}
.stat__num sup { font-size: .5em; }
.stat__label { font-size: 13.5px; color: var(--muted); }

.hero__visual { position: relative; }
.hero__img {
  border-radius: var(--r-xl); overflow: hidden;
  box-shadow: var(--shadow-lg); border: 1px solid rgba(255, 255, 255, .7);
  aspect-ratio: 4 / 3.4; background: var(--bg-soft);
}
.hero__img img { width: 100%; height: 100%; object-fit: cover; }

.hero__badge {
  position: absolute; left: 18px; bottom: 18px;
  display: flex; align-items: center; gap: 12px;
  background: rgba(255, 255, 255, .92); backdrop-filter: blur(10px);
  border: 1px solid var(--line); border-radius: var(--r);
  padding: 12px 16px; box-shadow: var(--shadow);
  max-width: 82%;
}
.hero__badge .dot {
  width: 9px; height: 9px; border-radius: 50%; background: #16c784; flex: none;
  box-shadow: 0 0 0 5px rgba(22, 199, 132, .16);
}
.hero__badge b { font-size: 14px; display: block; }
.hero__badge span { font-size: 12.5px; color: var(--muted); }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: clamp(18px, 2.2vw, 26px); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-lg); padding: clamp(22px, 2.6vw, 30px);
  box-shadow: var(--shadow-sm);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s;
  position: relative; overflow: hidden;
}
.card::after {
  content: ""; position: absolute; inset: 0 auto auto 0;
  height: 3px; width: 0; background: var(--grad);
  transition: width .45s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(30, 107, 255, .25); }
.card:hover::after { width: 100%; }
.card h3 { margin-bottom: 10px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.card__icon {
  width: 50px; height: 50px; border-radius: 14px; margin-bottom: 18px;
  display: grid; place-items: center; color: var(--brand-ink);
  background: var(--grad-soft); border: 1px solid rgba(30, 107, 255, .16);
}
.card__icon svg { width: 24px; height: 24px; }

/* 数据指标条 */
.metric-band {
  border-radius: var(--r-xl); padding: clamp(28px, 4vw, 48px);
  background: var(--grad); color: #fff; position: relative; overflow: hidden;
  box-shadow: var(--glow);
}
.metric-band::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.10) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 70% 100% at 50% 0%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 100% at 50% 0%, #000, transparent 75%);
}
.metric-band .grid { position: relative; }
.metric { text-align: center; }
.metric__num { font-size: clamp(28px, 4vw, 44px); font-weight: 800; letter-spacing: -.02em; }
.metric__num sup { font-size: .45em; font-weight: 600; margin-left: 2px; }
.metric__label { font-size: 14px; opacity: .88; }

/* ---------- 图集 ---------- */
.gallery { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: clamp(14px, 1.8vw, 20px); }
.gallery figure { margin: 0; border-radius: var(--r-lg); overflow: hidden; position: relative; box-shadow: var(--shadow-sm); }
.gallery img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; transition: transform .7s var(--ease); }
.gallery figure:hover img { transform: scale(1.06); }
.gallery figure:first-child { grid-row: span 2; }
.gallery figure:first-child img { aspect-ratio: auto; height: 100%; min-height: 320px; }
.gallery figcaption {
  position: absolute; left: 14px; bottom: 14px;
  background: rgba(10, 26, 48, .62); color: #fff; backdrop-filter: blur(8px);
  font-size: 13px; padding: 6px 12px; border-radius: 999px;
}

/* ---------- 区位交通 ---------- */
.transport { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 4vw, 52px); align-items: center; }
.transport__list { display: grid; gap: 14px; }
.transport__item {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r); padding: 18px 20px; box-shadow: var(--shadow-sm);
}
.transport__item .ico {
  width: 40px; height: 40px; border-radius: 11px; flex: none; display: grid; place-items: center;
  background: var(--grad-soft); color: var(--brand-ink);
}
.transport__item .ico svg { width: 20px; height: 20px; }
.transport__item b { display: block; font-size: 15.5px; }
.transport__item span { font-size: 14px; color: var(--muted); }
.transport__map {
  border-radius: var(--r-xl); overflow: hidden; border: 1px solid var(--line);
  box-shadow: var(--shadow); background: var(--surface-2);
}
.transport__map img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.transport__map svg { display: block; width: 100%; height: auto; }

/* ---------- 房源列表 ---------- */
.filters {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-lg); padding: 14px 16px; box-shadow: var(--shadow-sm);
  margin-bottom: 28px;
}
.filters__label { font-size: 13.5px; color: var(--muted); font-weight: 600; margin-right: 4px; }
.chip {
  padding: 8px 16px; border-radius: 999px; font-size: 14px; font-weight: 500;
  border: 1px solid var(--line-strong); background: #fff; color: var(--ink-2);
  transition: .25s;
}
.chip:hover { border-color: var(--brand); color: var(--brand-ink); }
.chip.is-active { background: var(--grad); border-color: transparent; color: #fff; box-shadow: var(--glow); }
.filters__count { margin-left: auto; font-size: 14px; color: var(--muted); }
.filters__count b { color: var(--brand-ink); }

.office-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden; box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s;
}
.office-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(30, 107, 255, .25); }
.office-card__media { position: relative; aspect-ratio: 16 / 10; background: var(--bg-soft); overflow: hidden; }
.office-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.office-card:hover .office-card__media img { transform: scale(1.06); }
.office-card__tag {
  position: absolute; left: 12px; top: 12px; z-index: 2;
  background: var(--grad); color: #fff; font-size: 12px; font-weight: 600;
  padding: 6px 12px; border-radius: 999px; box-shadow: var(--glow);
}
.office-card__body { padding: 22px; display: flex; flex-direction: column; gap: 14px; flex: 1; }
.office-card__title { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.office-card__title h3 { margin: 0; font-size: 19px; }
.office-card__area { font-size: 20px; font-weight: 800; }
.office-card__area sup { font-size: .5em; color: var(--muted); font-weight: 600; }
.office-card__specs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 16px; }
.spec { display: flex; justify-content: space-between; gap: 8px; font-size: 13.5px; padding-bottom: 8px; border-bottom: 1px dashed var(--line); }
.spec dt { color: var(--muted); }
.spec dd { margin: 0; font-weight: 600; color: var(--ink); }
.office-card__price {
  display: flex; align-items: baseline; justify-content: space-between;
  padding-top: 4px; margin-top: auto;
}
.price-tag { font-size: 22px; font-weight: 800; background: var(--grad);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.price-tag small { font-size: .5em; font-weight: 600; -webkit-text-fill-color: var(--muted); }
.office-card__actions { display: flex; gap: 10px; }
.office-card__actions .btn { flex: 1; padding: 12px 16px; font-size: 14.5px; }

.empty-state {
  text-align: center; padding: 60px 20px; border: 1px dashed var(--line-strong);
  border-radius: var(--r-lg); color: var(--muted); background: var(--surface);
}

/* ---------- 联系 / 二维码 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(24px, 4vw, 48px); align-items: start; }

.info-list { display: grid; gap: 14px; }
.info-item {
  display: flex; gap: 16px; align-items: center;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r);
  padding: 18px 20px; box-shadow: var(--shadow-sm); transition: border-color .3s, transform .3s var(--ease);
}
.info-item:hover { border-color: rgba(30,107,255,.3); transform: translateY(-3px); }
.info-item .ico { width: 46px; height: 46px; border-radius: 12px; flex: none; display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid rgba(30,107,255,.16); color: var(--brand-ink); }
.info-item .ico svg { width: 22px; height: 22px; }
.info-item__label { display: block; font-size: 13px; color: var(--faint); letter-spacing: .04em; }
.info-item__value { display: block; font-size: 17px; font-weight: 700; }
.info-item__value a:hover { color: var(--brand-ink); }

.qr-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-xl);
  padding: clamp(22px, 3vw, 34px); text-align: center; box-shadow: var(--shadow);
  position: relative; overflow: hidden;
}
.qr-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--grad);
}
.qr-card img { width: min(260px, 70%); margin: 6px auto 18px; border-radius: var(--r); border: 1px solid var(--line); }
.qr-card h3 { margin-bottom: 6px; }
.qr-card p { color: var(--muted); font-size: 14.5px; margin-bottom: 18px; }

/* 表单 */
.form { display: grid; gap: 14px; }
.field { display: grid; gap: 7px; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--ink-2); }
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 15px; border-radius: var(--r-sm);
  border: 1px solid var(--line-strong); background: var(--surface-2);
  font: inherit; color: var(--ink); transition: border-color .25s, box-shadow .25s, background .25s;
}
.field textarea { min-height: 118px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--brand); background: #fff;
  box-shadow: 0 0 0 4px rgba(30, 107, 255, .13);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form__note { font-size: 12.5px; color: var(--faint); }
.form__msg { display: none; padding: 12px 16px; border-radius: var(--r-sm); background: rgba(22,199,132,.1);
  border: 1px solid rgba(22,199,132,.35); color: #0f7a56; font-size: 14px; }
.form__msg.is-visible { display: block; }

/* ---------- CTA 横幅 ---------- */
.cta-band {
  border-radius: var(--r-xl); padding: clamp(30px, 5vw, 56px);
  background: linear-gradient(120deg, #061a3d 0%, #0d3384 55%, #1263d6 100%);
  color: #fff; position: relative; overflow: hidden; box-shadow: var(--shadow-lg);
  display: grid; grid-template-columns: 1.3fr .7fr; gap: 32px; align-items: center;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 90% 90% at 20% 0%, #000, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 90% at 20% 0%, #000, transparent 78%);
}
.cta-band h2 { color: #fff; margin-bottom: 12px; }
.cta-band p { color: rgba(255,255,255,.82); margin-bottom: 24px; }
.cta-band__qr {
  position: relative; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.22);
  border-radius: var(--r-lg); padding: 18px; text-align: center; backdrop-filter: blur(8px);
}
.cta-band__qr img { width: 150px; margin: 0 auto 10px; border-radius: 10px; background: #fff; padding: 8px; }
.cta-band__qr span { font-size: 13px; color: rgba(255,255,255,.85); }

/* ---------- 页脚 ---------- */
.site-footer {
  background: #071733; color: rgba(255,255,255,.78); padding: clamp(48px, 6vw, 72px) 0 28px;
  position: relative; z-index: 1; margin-top: clamp(40px, 6vw, 80px);
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 32px; }
.site-footer .brand__name { color: #fff; }
.site-footer .brand__sub { color: rgba(255,255,255,.5); }
.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; letter-spacing: .04em; }
.site-footer a { color: rgba(255,255,255,.72); transition: color .25s; }
.site-footer a:hover { color: #fff; }
.site-footer li { margin-bottom: 10px; font-size: 14px; }
.footer-note { font-size: 13.5px; color: rgba(255,255,255,.6); line-height: 1.9; }
.footer-bottom {
  margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12);
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  font-size: 13px; color: rgba(255,255,255,.55);
}
.footer-qr { width: 108px; border-radius: 10px; background: #fff; padding: 7px; margin-top: 6px; }

/* ---------- 返回顶部 ---------- */
.to-top {
  position: fixed; right: 20px; bottom: 24px; z-index: 90;
  width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center;
  background: var(--grad); color: #fff; box-shadow: var(--glow);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: .35s var(--ease);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top svg { width: 20px; height: 20px; }

/* 悬浮联系条（移动端优先） */
.mobile-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 95;
  display: none; gap: 10px; padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255,255,255,.94); backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
}
.mobile-bar .btn { flex: 1; padding: 12px; font-size: 14.5px; }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }
.reveal[data-delay="5"] { transition-delay: .4s; }
.reveal[data-delay="6"] { transition-delay: .48s; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1060px) {
  .nav__links { display: none; }
  .nav__toggle { display: grid; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .hero__grid, .transport, .contact-grid, .cta-band { grid-template-columns: 1fr; }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: 1fr 1fr; }
  .gallery figure:first-child { grid-row: span 1; grid-column: span 2; }
  .cta-band__qr { max-width: 260px; }
}

@media (max-width: 680px) {
  html { scroll-padding-top: 82px; }
  .nav { height: 66px; }
  .drawer { top: 66px; }
  .brand__sub { display: none; }
  .nav__phone { display: none; }
  .grid--3, .grid--2, .grid--4, .hero__stats { grid-template-columns: 1fr; }
  .hero__stats { gap: 20px; }
  .stat { display: flex; align-items: center; gap: 14px; }
  .stat__num { min-width: 96px; }
  .gallery { grid-template-columns: 1fr; }
  .gallery figure:first-child { grid-column: span 1; }
  .form__row { grid-template-columns: 1fr; }
  .filters__count { margin-left: 0; width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .office-card__actions { flex-direction: column; }
  .mobile-bar { display: flex; }
  body { padding-bottom: 76px; }
  .to-top { right: 14px; bottom: 84px; }
}

@media (max-width: 400px) {
  .hero__actions .btn { width: 100%; }
}

/* ---------- 右侧悬浮咨询 ---------- */
.float-consult {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.float-consult__item {
  position: relative;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(10, 26, 48, .12);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  text-decoration: none;
}

.float-consult__item:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(30, 107, 255, .25);
  background: var(--brand);
}

.float-consult__item:hover svg {
  stroke: #fff;
}

.float-consult__item svg {
  width: 24px;
  height: 24px;
  stroke: var(--brand);
  fill: none;
  stroke-width: 1.8;
  transition: stroke .2s ease;
}

.float-consult__item--phone svg {
  stroke-width: 2;
}

/* 电话悬浮展开号码 */
.float-consult__tip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  background: var(--ink);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease, right .2s ease;
  pointer-events: none;
}

.float-consult__tip::after {
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--ink);
}

.float-consult__item:hover .float-consult__tip {
  opacity: 1;
  visibility: visible;
  right: calc(100% + 16px);
}

/* 微信二维码面板 */
.float-consult__qr {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  width: 180px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(10, 26, 48, .16);
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease, right .2s ease;
  text-align: center;
}

.float-consult__qr::after {
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 8px solid transparent;
  border-left-color: var(--surface);
}

.float-consult__qr img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 10px;
}

.float-consult__qr p {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

.float-consult__item--wechat:hover .float-consult__qr {
  opacity: 1;
  visibility: visible;
  right: calc(100% + 16px);
}

/* 手机上隐藏悬浮，避免遮挡 */
@media (max-width: 680px) {
  .float-consult { display: none; }
}