@charset "UTF-8";
/* ==========================================================================
   北京溢洋电子商务有限公司 — 官网主样式
   Author: Web Team
   License: 内部使用
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  --c-primary: #2563eb;
  --c-primary-dark: #1d4ed8;
  --c-primary-deep: #1e3a8a;
  --c-accent: #06b6d4;
  --c-accent-soft: #e0f7fb;

  --c-ink: #0f172a;
  --c-title: #16233c;
  --c-body: #4c5a70;
  --c-muted: #7c8798;
  --c-line: #e6ebf3;
  --c-bg: #f6f8fc;
  --c-white: #ffffff;

  --grad-brand: linear-gradient(135deg, #1e3a8a 0%, #2563eb 48%, #06b6d4 100%);
  --grad-soft: linear-gradient(135deg, #eef4ff 0%, #e8fbff 100%);

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, .05);
  --shadow-md: 0 10px 28px rgba(15, 23, 42, .08);
  --shadow-lg: 0 22px 50px rgba(15, 23, 42, .13);

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;

  --container: 1200px;
  --header-h: 72px;

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB",
    "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

/* ---------- 2. 基础重置 ---------- */
* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-body);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  margin: 0 0 .6em;
  color: var(--c-title);
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: .2px;
}

h1 { font-size: 2.6rem; }
h2 { font-size: 1.9rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.08rem; }

p { margin: 0 0 1em; }

a {
  color: var(--c-primary);
  text-decoration: none;
  transition: color .2s ease, opacity .2s ease;
}
a:hover { color: var(--c-primary-dark); }

img, svg { max-width: 100%; vertical-align: middle; }
ul, ol { margin: 0; padding: 0; list-style: none; }

button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }

::selection { background: rgba(37, 99, 235, .16); }

:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 3. 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 88px 0; }
.section--tint { background: var(--c-bg); }
.section--tight { padding: 64px 0; }
.section--grad { background: var(--grad-soft); }

.section-head {
  max-width: 720px;
  margin: 0 auto 52px;
  text-align: center;
}
.section-head p { color: var(--c-muted); margin-bottom: 0; }

.eyebrow {
  display: inline-block;
  padding: 5px 14px;
  margin-bottom: 16px;
  border-radius: 999px;
  background: rgba(37, 99, 235, .09);
  color: var(--c-primary);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: 1.6px;
}

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }

/* ---------- 4. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: .98rem;
  font-weight: 600;
  line-height: 1.2;
  border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn--primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: 0 10px 24px rgba(37, 99, 235, .28);
}
.btn--primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(37, 99, 235, .34);
}
.btn--ghost {
  background: rgba(255, 255, 255, .1);
  border-color: rgba(255, 255, 255, .55);
  color: #fff;
}
.btn--ghost:hover { background: #fff; color: var(--c-primary); }
.btn--line {
  background: #fff;
  border-color: var(--c-line);
  color: var(--c-title);
}
.btn--line:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.btn--sm { padding: 10px 22px; font-size: .9rem; }

/* ---------- 5. 顶栏 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  height: var(--header-h);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow .25s ease;
}
.site-header.is-scrolled { box-shadow: 0 6px 20px rgba(15, 23, 42, .07); }

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--c-title);
  flex-shrink: 0;
}
.logo:hover { color: var(--c-title); }
.logo__mark {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: var(--grad-brand);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 1.22rem;
  font-weight: 700;
  box-shadow: 0 6px 14px rgba(37, 99, 235, .3);
  flex-shrink: 0;
}
.logo__text { display: flex; flex-direction: column; line-height: 1.2; }
.logo__name { font-size: 1.06rem; font-weight: 700; letter-spacing: .3px; white-space: nowrap; }
.logo__short { display: none; font-size: 1.08rem; font-weight: 700; letter-spacing: .5px; white-space: nowrap; }
.logo__sub {
  font-size: .66rem;
  color: var(--c-muted);
  letter-spacing: 1.1px;
  text-transform: uppercase;
}

/* 主导航 */
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  position: relative;
  padding: 9px 15px;
  border-radius: var(--radius-sm);
  color: var(--c-title);
  font-size: .96rem;
  font-weight: 500;
  white-space: nowrap;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-brand);
  transform: translateX(-50%);
  transition: width .25s ease;
}
.nav a:hover { color: var(--c-primary); background: rgba(37, 99, 235, .06); }
.nav a:hover::after, .nav a.is-active::after { width: 20px; }
.nav a.is-active { color: var(--c-primary); font-weight: 600; }

.header-actions { display: flex; align-items: center; gap: 14px; }
.header-tel {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--c-title);
  font-weight: 600;
  font-size: .95rem;
}
.header-tel:hover { color: var(--c-primary); }
.header-tel svg { flex-shrink: 0; }

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--c-line);
  background: #fff;
  padding: 0;
  place-items: center;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-title);
  position: relative;
  transition: background .2s ease;
}
.nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-title);
  transition: transform .25s ease, top .25s 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); }

/* ---------- 6. 首屏 Hero ---------- */
.hero {
  position: relative;
  padding: 96px 0 104px;
  background: var(--grad-brand);
  color: #fff;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(255, 255, 255, .18), transparent 42%),
    radial-gradient(circle at 88% 82%, rgba(6, 182, 212, .34), transparent 46%),
    linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px) 0 0 / 100% 56px,
    linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px) 0 0 / 56px 100%;
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero__grid {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  color: #fff;
  font-size: 3rem;
  line-height: 1.24;
  margin-bottom: 20px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, #a5f3fc, #ffffff 60%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__lead {
  font-size: 1.09rem;
  color: rgba(255, 255, 255, .88);
  max-width: 540px;
  margin-bottom: 32px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 40px; }

.hero__points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, .22);
}
.hero__points li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .93rem;
  color: rgba(255, 255, 255, .92);
}
.hero__points svg { flex-shrink: 0; }

/* Hero 右侧数据卡 */
.hero__panel {
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .26);
  border-radius: var(--radius-lg);
  padding: 10px;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-lg);
}
.hero__panel-inner {
  background: rgba(255, 255, 255, .96);
  border-radius: 15px;
  padding: 30px 28px;
  color: var(--c-body);
}
.hero__panel h3 {
  font-size: 1.02rem;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--c-line);
}
.kpi-list { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 16px; }
.kpi__num {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--c-primary);
  line-height: 1.1;
  font-family: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
}
.kpi__num small { font-size: .9rem; font-weight: 600; margin-left: 2px; }
.kpi__label { font-size: .85rem; color: var(--c-muted); }

/* ---------- 7. 卡片 & 图标 ---------- */
.card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  height: 100%;
  position: relative;
  overflow: hidden;
}
.card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37, 99, 235, .3);
}
.card:hover::after { transform: scaleX(1); }
.card h3 { margin-bottom: 10px; }
.card p { margin-bottom: 0; font-size: .95rem; }

.card__icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: var(--grad-soft);
  color: var(--c-primary);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.card--plain { padding: 0; border: none; background: transparent; }
.card--plain::after { display: none; }
.card--plain:hover { transform: none; box-shadow: none; }

/* 服务卡片（带序号） */
.svc {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 22px;
  padding: 32px 30px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.svc:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37, 99, 235, .3);
}
.svc__no {
  font-family: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: transparent;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  line-height: 1;
  padding-top: 4px;
}
.svc h3 { margin-bottom: 8px; }
.svc p { margin-bottom: 14px; font-size: .95rem; }

/* 标签列表 */
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags li {
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  font-size: .82rem;
  color: var(--c-body);
}

/* ---------- 8. 数据条 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 44px 40px;
  border-radius: var(--radius-lg);
  background: var(--grad-brand);
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.stats__item { text-align: center; position: relative; }
.stats__item + .stats__item::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 12%;
  height: 76%;
  width: 1px;
  background: rgba(255, 255, 255, .24);
}
.stats__num {
  font-family: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
  font-size: 2.3rem;
  font-weight: 700;
  line-height: 1.1;
}
.stats__num small { font-size: 1rem; margin-left: 2px; }
.stats__label { font-size: .9rem; color: rgba(255, 255, 255, .82); }

/* ---------- 9. 分栏（图文） ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.split--reverse .split__media { order: 2; }

.split__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--grad-soft);
  border: 1px solid var(--c-line);
}
.split h2 { margin-bottom: 18px; }
.split p { font-size: 1rem; }

.media-mock {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 25% 22%, rgba(37, 99, 235, .16), transparent 52%),
    radial-gradient(circle at 78% 78%, rgba(6, 182, 212, .2), transparent 52%),
    linear-gradient(135deg, #f3f7ff, #eafaff);
  padding: 26px;
}
.media-mock svg { width: 100%; height: auto; }

/* 特性列表 */
.check-list { display: grid; gap: 14px; margin-top: 26px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; font-size: .97rem; }
.check-list svg { flex-shrink: 0; margin-top: 5px; }
.check-list strong { color: var(--c-title); display: block; }

/* ---------- 10. 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: flow; }
.flow__item {
  position: relative;
  padding: 30px 24px 26px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: transform .25s ease, box-shadow .25s ease;
}
.flow__item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.flow__item::before {
  counter-increment: flow;
  content: counter(flow, decimal-leading-zero);
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  margin-bottom: 16px;
  background: var(--grad-brand);
  color: #fff;
  font-weight: 700;
  font-size: .9rem;
  font-family: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
}
.flow__item h4 { margin-bottom: 8px; }
.flow__item p { margin: 0; font-size: .92rem; }

/* ---------- 11. 发展历程 ---------- */
.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-primary), var(--c-accent));
  border-radius: 2px;
  opacity: .35;
}
.timeline__item { position: relative; padding: 0 0 34px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 7px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--c-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, .12);
}
.timeline__year {
  display: inline-block;
  font-weight: 700;
  color: var(--c-primary);
  font-family: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
  font-size: 1.05rem;
  margin-bottom: 4px;
}
.timeline__item h4 { margin-bottom: 6px; }
.timeline__item p { margin: 0; font-size: .95rem; }

/* ---------- 12. 客户评价 ---------- */
.quote {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 30px 28px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.quote:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.quote__mark {
  font-size: 2.6rem;
  line-height: .6;
  color: var(--c-accent);
  font-family: Georgia, serif;
  opacity: .5;
}
.quote p { margin: 0; font-size: .96rem; }
.quote__who {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px dashed var(--c-line);
  display: flex;
  align-items: center;
  gap: 12px;
}
.avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--grad-brand);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: .95rem;
  flex-shrink: 0;
}
.quote__who b { display: block; color: var(--c-title); font-size: .95rem; }
.quote__who span { font-size: .84rem; color: var(--c-muted); }

/* ---------- 13. CTA ---------- */
.cta {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 60px 52px;
  background: var(--grad-brand);
  color: #fff;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .12);
}
.cta > * { position: relative; z-index: 1; }
.cta h2 { color: #fff; margin-bottom: 10px; }
.cta p { color: rgba(255, 255, 255, .88); margin: 0; max-width: 620px; }
.cta__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 14. 页面横幅（内页） ---------- */
.page-hero {
  position: relative;
  padding: 76px 0 66px;
  background: var(--grad-brand);
  color: #fff;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 82% 12%, rgba(255, 255, 255, .16), transparent 44%),
    radial-gradient(circle at 10% 88%, rgba(6, 182, 212, .3), transparent 46%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: #fff; margin-bottom: 12px; }
.page-hero p { color: rgba(255, 255, 255, .85); max-width: 660px; margin: 0; }

.crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .88rem;
  color: rgba(255, 255, 255, .78);
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.crumb a { color: rgba(255, 255, 255, .88); }
.crumb a:hover { color: #fff; text-decoration: underline; }
.crumb span { opacity: .6; }

/* ---------- 15. 新闻 ---------- */
.post-list { display: grid; gap: 18px; }
.post {
  display: grid;
  grid-template-columns: 108px 1fr auto;
  gap: 26px;
  align-items: center;
  padding: 26px 30px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.post:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37, 99, 235, .3);
}
.post__date {
  text-align: center;
  border-right: 1px solid var(--c-line);
  padding-right: 20px;
}
.post__day {
  font-family: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--c-primary);
  line-height: 1.1;
  display: block;
}
.post__ym { font-size: .82rem; color: var(--c-muted); }
.post h3 { font-size: 1.1rem; margin-bottom: 6px; }
.post h3 a { color: var(--c-title); }
.post h3 a:hover { color: var(--c-primary); }
.post p { margin: 0; font-size: .93rem; }
.post__more { color: var(--c-primary); font-size: .88rem; font-weight: 600; white-space: nowrap; }

/* ---------- 16. 联系方式 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 40px; align-items: start; }

.info-list { display: grid; gap: 16px; }
.info-item {
  display: flex;
  gap: 16px;
  padding: 22px 24px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.info-item:hover { border-color: rgba(37, 99, 235, .32); box-shadow: var(--shadow-sm); }
.info-item__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--grad-soft);
  color: var(--c-primary);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.info-item h4 { margin-bottom: 4px; font-size: .96rem; }
.info-item p { margin: 0; font-size: .95rem; }
.info-item small { color: var(--c-muted); font-size: .84rem; }

.form-card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 36px 34px;
  box-shadow: var(--shadow-sm);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: .9rem; font-weight: 600; color: var(--c-title); }
.field label i { color: #e11d48; font-style: normal; }
.field input, .field textarea, .field select {
  padding: 12px 15px;
  border: 1px solid var(--c-line);
  border-radius: 10px;
  background: #fbfcfe;
  font-size: .95rem;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
  width: 100%;
}
.field textarea { resize: vertical; min-height: 122px; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--c-primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}
.field .err { color: #e11d48; font-size: .82rem; min-height: 0; display: none; }
.field.has-error input, .field.has-error textarea { border-color: #f43f5e; background: #fff5f7; }
.field.has-error .err { display: block; }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.form-note { font-size: .84rem; color: var(--c-muted); margin: 14px 0 0; }
.form-msg {
  margin-top: 16px;
  padding: 13px 18px;
  border-radius: 10px;
  font-size: .92rem;
  display: none;
}
.form-msg.is-ok { display: block; background: #ecfdf5; border: 1px solid #a7f3d0; color: #047857; }
.form-msg.is-err { display: block; background: #fef2f2; border: 1px solid #fecaca; color: #b91c1c; }

.map-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--c-line);
  background: var(--grad-soft);
  min-height: 300px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 30px;
}
.map-card p { margin: 10px 0 0; color: var(--c-muted); font-size: .9rem; }

/* ---------- 17. 页脚 ---------- */
.site-footer {
  background: #0b1a33;
  color: rgba(255, 255, 255, .68);
  font-size: .92rem;
  padding-top: 66px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 46px;
}
.site-footer h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}
.site-footer h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 26px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-accent);
}
.site-footer a { color: rgba(255, 255, 255, .72); }
.site-footer a:hover { color: #fff; }
.footer-brand { display: flex; align-items: center; gap: 11px; margin-bottom: 18px; }
.footer-brand .logo__name { color: #fff; }
.footer-brand .logo__sub { color: rgba(255, 255, 255, .5); }
.footer-about { font-size: .91rem; line-height: 1.85; margin: 0; }
.footer-links { display: grid; gap: 11px; }
.footer-contact { display: grid; gap: 14px; }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; line-height: 1.6; }
.footer-contact svg { flex-shrink: 0; margin-top: 4px; }

/* 备案信息条 */
.beian-bar {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding: 22px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 26px;
}
.beian-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  font-size: .92rem;
}
.beian-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: rgba(255, 255, 255, .86) !important;
  font-weight: 600;
  letter-spacing: .2px;
}
.beian-link:hover { color: #fff !important; }
.beian-link svg { flex-shrink: 0; }
.beian-link .icp-no { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding: 18px 0 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
  font-size: .86rem;
  color: rgba(255, 255, 255, .5);
}
.footer-bottom nav { display: flex; flex-wrap: wrap; gap: 18px; }

/* 底部悬浮备案徽标 */
.icp-float {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translate(-50%, 130%);
  z-index: 880;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 999px;
  background: rgba(11, 26, 51, .9);
  border: 1px solid rgba(255, 255, 255, .18);
  color: #fff !important;
  font-size: .85rem;
  font-weight: 600;
  box-shadow: 0 10px 26px rgba(15, 23, 42, .3);
  backdrop-filter: blur(8px);
  transition: transform .35s cubic-bezier(.22, .7, .3, 1), opacity .3s ease;
  opacity: 0;
  pointer-events: none;
}
.icp-float.is-visible {
  transform: translate(-50%, 0);
  opacity: 1;
  pointer-events: auto;
}
.icp-float:hover { background: #0b1a33; color: #fff !important; }

/* 返回顶部 */
.to-top {
  position: fixed;
  right: 22px;
  bottom: 24px;
  z-index: 870;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--c-line);
  color: var(--c-primary);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease, transform .3s ease;
  transform: translateY(10px);
}
.to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.to-top:hover { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }

/* ---------- 18. 滚动动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s ease, transform .6s ease;
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- 19. 响应式 ---------- */
@media (max-width: 1280px) {
  .header-tel { font-size: .9rem; }
  .nav a { padding: 9px 13px; }
}

@media (max-width: 1180px) {
  /* 中等屏幕下缩短公司名并隐藏咨询按钮，避免导航拥挤 */
  .site-header .logo__name { display: none; }
  .site-header .logo__short { display: inline; }
  .nav__cta { display: none; }
}

@media (max-width: 1080px) {
  .hero__grid { grid-template-columns: 1fr; gap: 44px; }
  .hero__lead { max-width: none; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  .contact-grid { grid-template-columns: 1fr; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .split { gap: 40px; }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }
  .nav-toggle { display: grid; }
  .header-tel { display: none; }

  .nav {
    position: fixed;
    left: 0;
    right: 0;
    top: var(--header-h);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 16px 18px;
    background: #fff;
    border-bottom: 1px solid var(--c-line);
    box-shadow: var(--shadow-md);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .22s ease, transform .22s ease, visibility .22s;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav a { padding: 13px 12px; border-radius: 10px; font-size: 1rem; }
  .nav a + a { border-top: 1px solid var(--c-line); }
  .nav a::after { display: none; }
  .nav a.is-active { background: rgba(37, 99, 235, .08); }
  .nav__cta { display: block; margin-top: 12px; }
  .nav__cta .btn { width: 100%; }

  .hero { padding: 68px 0 76px; }
  .hero h1 { font-size: 2.15rem; }
  .section { padding: 64px 0; }
  .page-hero { padding: 52px 0 46px; }
  .split { grid-template-columns: 1fr; }
  .split--reverse .split__media { order: 0; }
  .stats { grid-template-columns: repeat(2, 1fr); padding: 34px 24px; gap: 26px; }
  .stats__item:nth-child(odd)::before { display: none; }
  .cta { padding: 40px 28px; }
  .post { grid-template-columns: 1fr; gap: 14px; }
  .post__date {
    border-right: none;
    border-bottom: 1px solid var(--c-line);
    padding: 0 0 12px;
    display: flex;
    align-items: baseline;
    gap: 8px;
  }
}

@media (max-width: 620px) {
  body { font-size: 15px; }
  .container { padding: 0 18px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.82rem; }
  h2 { font-size: 1.5rem; }
  .kpi-list { grid-template-columns: 1fr 1fr; gap: 18px 12px; }
  .form-card { padding: 26px 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .beian-bar, .footer-bottom { justify-content: center; text-align: center; }
  .beian-list { justify-content: center; }
  .to-top { right: 14px; bottom: 74px; }
  .icp-float { bottom: 14px; font-size: .78rem; padding: 8px 14px; }
  .site-header .logo__short { display: none; }
  .site-header .logo__name { display: inline; font-size: .96rem; }
  .card { padding: 26px 22px; }
  .svc { grid-template-columns: 1fr; gap: 12px; padding: 26px 22px; }
}

/* ---------- 20. 打印 / 无障碍 ---------- */
@media print {
  .site-header, .icp-float, .to-top, .cta { display: none !important; }
  .site-footer { background: #fff; color: #333; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}