/* ==========================================================================
   深圳安车昇辉检测技术有限公司 — 工业检测企业官网
   全局样式 / 设计系统
   纯静态站点，无构建依赖
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计令牌 (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* 品牌色 —— 工业蓝，沉稳专业 */
  --c-brand-900: #06213f;
  --c-brand-800: #0a3055;
  --c-brand-700: #0e4275;
  --c-brand-600: #1155a0;
  --c-brand-500: #1a6ec4;
  --c-brand-400: #4a93dd;
  --c-brand-100: #e3eefb;
  --c-brand-50:  #f2f7fd;

  /* 强调色 —— 科技青，用于关键 CTA 与数据高亮 */
  --c-accent-600: #0d8f9e;
  --c-accent-500: #12a8ba;
  --c-accent-400: #38c4d4;
  --c-accent-100: #dcf5f8;

  /* 中性色 */
  --c-ink-900: #0d1520;
  --c-ink-800: #1c2836;
  --c-ink-700: #33414f;
  --c-ink-600: #4d5c6b;
  --c-ink-500: #6b7a89;
  --c-ink-400: #94a1ad;
  --c-ink-300: #c2cbd4;
  --c-ink-200: #dfe5ea;
  --c-ink-100: #eef2f5;
  --c-ink-50:  #f7f9fa;
  --c-white:   #ffffff;

  /* 功能色 */
  --c-success: #17864b;
  --c-warning: #c47c0a;
  --c-danger:  #c0392b;

  /* 排版 */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
               -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --fs-xs:   0.75rem;   /* 12px */
  --fs-sm:   0.8125rem; /* 13px */
  --fs-base: 0.9375rem; /* 15px */
  --fs-md:   1rem;      /* 16px */
  --fs-lg:   1.125rem;  /* 18px */
  --fs-xl:   1.375rem;  /* 22px */
  --fs-2xl:  1.75rem;   /* 28px */
  --fs-3xl:  2.25rem;   /* 36px */
  --fs-4xl:  2.875rem;  /* 46px */

  --lh-tight: 1.25;
  --lh-snug:  1.45;
  --lh-base:  1.7;

  /* 间距（8pt 栅格） */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.5rem;
  --sp-6: 2rem;
  --sp-7: 2.5rem;
  --sp-8: 3rem;
  --sp-9: 4rem;
  --sp-10: 5rem;
  --sp-11: 6.5rem;

  /* 圆角 */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 18px;
  --r-full: 999px;

  /* 阴影 */
  --sh-xs: 0 1px 2px rgba(13, 21, 32, .06);
  --sh-sm: 0 2px 6px rgba(13, 21, 32, .07);
  --sh-md: 0 6px 18px rgba(13, 21, 32, .08);
  --sh-lg: 0 14px 38px rgba(13, 21, 32, .11);
  --sh-brand: 0 10px 30px rgba(17, 85, 160, .22);

  /* 容器 */
  --container: 1200px;
  --container-narrow: 820px;

  /* 层级 */
  --z-header: 900;
  --z-drawer: 1000;
  --z-overlay: 990;
  --z-top: 1100;

  /* 动效 */
  --ease: cubic-bezier(.4, 0, .2, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --t-fast: .15s;
  --t-base: .28s;
  --t-slow: .45s;

  --header-h: 72px;
}

/* --------------------------------------------------------------------------
   2. 重置与基础
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  overflow-x: clip;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--c-ink-700);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.nav-open { overflow: hidden; }

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  color: var(--c-ink-900);
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: -.01em;
}

h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

p { margin: 0 0 var(--sp-4); }
p:last-child { margin-bottom: 0; }

a {
  color: var(--c-brand-600);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}
a:hover { color: var(--c-brand-500); }

img, svg, video { max-width: 100%; height: auto; display: block; }

ul, ol { margin: 0; padding: 0; }

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

button { cursor: pointer; border: none; background: none; }

table { border-collapse: collapse; width: 100%; }

:focus-visible {
  outline: 2px solid var(--c-accent-500);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

::selection { background: var(--c-brand-100); color: var(--c-brand-800); }

/* 跳过导航（无障碍） */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: var(--z-top);
  padding: var(--sp-3) var(--sp-4);
  background: var(--c-brand-700);
  color: #fff;
  border-radius: 0 0 var(--r-md) 0;
}
.skip-link:focus { left: 0; }

/* --------------------------------------------------------------------------
   3. 布局工具类
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-5);
}
.container--narrow { max-width: var(--container-narrow); }

.section { padding-block: var(--sp-10); }
.section--tight { padding-block: var(--sp-8); }
.section--alt { background: var(--c-ink-50); }
.section--brand {
  background: linear-gradient(135deg, var(--c-brand-900) 0%, var(--c-brand-700) 55%, var(--c-brand-600) 100%);
  color: #fff;
}
.section--brand h2, .section--brand h3, .section--brand h4 { color: #fff; }

.grid { display: grid; gap: var(--sp-5); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--auto { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }
.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--sp-4); }
.mt-5 { margin-top: var(--sp-5); }
.mt-6 { margin-top: var(--sp-6); }
.mt-8 { margin-top: var(--sp-8); }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--sp-4); }
.mb-5 { margin-bottom: var(--sp-5); }
.mb-6 { margin-bottom: var(--sp-6); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* --------------------------------------------------------------------------
   4. 区块标题
   -------------------------------------------------------------------------- */
.section-head {
  max-width: 720px;
  margin-bottom: var(--sp-7);
}
.section-head--center {
  margin-inline: auto;
  text-align: center;
}
.section-head__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--c-accent-600);
  margin-bottom: var(--sp-3);
}
.section-head__eyebrow::before {
  content: "";
  width: 22px; height: 2px;
  background: var(--c-accent-500);
  border-radius: var(--r-full);
}
.section--brand .section-head__eyebrow { color: var(--c-accent-400); }
.section-head__title { margin-bottom: var(--sp-4); }
.section-head__desc {
  font-size: var(--fs-md);
  color: var(--c-ink-500);
  margin: 0;
}
.section--brand .section-head__desc { color: rgba(255, 255, 255, .78); }

/* 标题下方的装饰线 */
.section-head--center .section-head__title::after {
  content: "";
  display: block;
  width: 48px; height: 3px;
  margin: var(--sp-4) auto 0;
  background: var(--c-accent-500);
  border-radius: var(--r-full);
}

/* --------------------------------------------------------------------------
   5. 按钮
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 0.75rem 1.5rem;
  border-radius: var(--r-md);
  font-size: var(--fs-base);
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform var(--t-fast) var(--ease),
              background-color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease),
              box-shadow var(--t-base) var(--ease);
  white-space: nowrap;
  user-select: none;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--c-brand-600);
  color: #fff;
  box-shadow: var(--sh-sm);
}
.btn--primary:hover {
  background: var(--c-brand-500);
  color: #fff;
  box-shadow: var(--sh-brand);
  transform: translateY(-2px);
}

.btn--accent {
  background: var(--c-accent-500);
  color: #fff;
}
.btn--accent:hover {
  background: var(--c-accent-400);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(18, 168, 186, .3);
}

.btn--outline {
  background: transparent;
  border-color: var(--c-ink-300);
  color: var(--c-ink-800);
}
.btn--outline:hover {
  border-color: var(--c-brand-600);
  color: var(--c-brand-600);
  background: var(--c-brand-50);
}

.btn--ghost-light {
  background: rgba(255, 255, 255, .1);
  border-color: rgba(255, 255, 255, .4);
  color: #fff;
  backdrop-filter: blur(4px);
}
.btn--ghost-light:hover {
  background: rgba(255, 255, 255, .2);
  border-color: #fff;
  color: #fff;
}

.btn--lg { padding: 0.9rem 2rem; font-size: var(--fs-md); }
.btn--sm { padding: 0.5rem 1rem; font-size: var(--fs-sm); }
.btn--block { width: 100%; }

.btn .icon { width: 18px; height: 18px; flex-shrink: 0; }

/* --------------------------------------------------------------------------
   6. 头部导航
   -------------------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-ink-100);
  transition: box-shadow var(--t-base) var(--ease);
}
.header.is-scrolled { box-shadow: var(--sh-md); }

/* 顶部信息条 */
.topbar {
  background: var(--c-brand-900);
  color: rgba(255, 255, 255, .8);
  font-size: var(--fs-sm);
}
.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  min-height: 38px;
}
.topbar__list {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  list-style: none;
}
.topbar__item { display: inline-flex; align-items: center; gap: 6px; }
.topbar__item svg { width: 14px; height: 14px; opacity: .8; }
.topbar a { color: rgba(255, 255, 255, .9); }
.topbar a:hover { color: #fff; }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  min-height: var(--header-h);
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}
.logo__mark {
  width: 40px; height: 40px;
  flex-shrink: 0;
  border-radius: var(--r-md);
  background: #fff;
  border: 1px solid var(--c-ink-100);
  display: grid;
  place-items: center;
  color: #fff;
  box-shadow: var(--sh-sm);
}
.logo__mark img { width: 26px; height: 26px; object-fit: contain; display: block; }
.logo__text { display: flex; flex-direction: column; line-height: 1.15; }
.logo__name {
  font-size: var(--fs-md);
  font-weight: 800;
  color: var(--c-ink-900);
  letter-spacing: -.02em;
}
.logo__sub {
  font-size: var(--fs-xs);
  color: var(--c-ink-400);
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* 主导航 */
.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  list-style: none;
}
.nav__link {
  position: relative;
  display: block;
  padding: 0.6rem 0.85rem;
  border-radius: var(--r-sm);
  font-size: var(--fs-base);
  font-weight: 500;
  color: var(--c-ink-700);
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}
.nav__link:hover { color: var(--c-brand-600); background: var(--c-brand-50); }
.nav__link[aria-current="page"] { color: var(--c-brand-600); font-weight: 600; }
.nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0.85rem; right: 0.85rem;
  bottom: 0.15rem;
  height: 2px;
  background: var(--c-accent-500);
  border-radius: var(--r-full);
}

.nav__actions { display: flex; align-items: center; gap: var(--sp-3); }

/* 汉堡按钮 */
.nav__toggle {
  display: none;
  width: 44px; height: 44px;
  border-radius: var(--r-md);
  place-items: center;
  color: var(--c-ink-800);
  transition: background-color var(--t-fast) var(--ease);
}
.nav__toggle:hover { background: var(--c-ink-100); }
.nav__toggle svg { width: 24px; height: 24px; }
.nav__toggle .icon-close { display: none; }
.nav__toggle[aria-expanded="true"] .icon-menu { display: none; }
.nav__toggle[aria-expanded="true"] .icon-close { display: block; }

/* 移动端抽屉 */
.drawer {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(86vw, 360px);
  background: #fff;
  z-index: var(--z-drawer);
  transform: translateX(100%);
  transition: transform var(--t-base) var(--ease-out);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  box-shadow: -8px 0 40px rgba(0, 0, 0, .16);
  visibility: hidden;
}
.drawer.is-open { transform: translateX(0); visibility: visible; }

.drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--c-ink-100);
  position: sticky; top: 0; background: #fff; z-index: 2;
}
.drawer__close {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: var(--r-md);
  color: var(--c-ink-600);
}
.drawer__close:hover { background: var(--c-ink-100); }
.drawer__close svg { width: 22px; height: 22px; }

.drawer__nav { padding: var(--sp-2) 0; }
.drawer__item { border-bottom: 1px solid var(--c-ink-100); }
.drawer__item:last-child { border-bottom: none; }
.drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4) var(--sp-5);
  font-size: var(--fs-md);
  font-weight: 500;
  color: var(--c-ink-800);
}
.drawer__link:hover, .drawer__link[aria-current="page"] {
  color: var(--c-brand-600);
  background: var(--c-brand-50);
}
.drawer__link svg { width: 16px; height: 16px; opacity: .4; }

.drawer__foot {
  margin-top: auto;
  padding: var(--sp-5);
  background: var(--c-ink-50);
  display: grid;
  gap: var(--sp-3);
}
.drawer__contact {
  display: flex; align-items: center; gap: var(--sp-2);
  font-size: var(--fs-sm); color: var(--c-ink-600);
}
.drawer__contact svg { width: 16px; height: 16px; color: var(--c-brand-600); flex-shrink: 0; }

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 33, 63, .5);
  backdrop-filter: blur(2px);
  z-index: var(--z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-base) var(--ease), visibility var(--t-base);
}
.overlay.is-open { opacity: 1; visibility: visible; }

/* --------------------------------------------------------------------------
   7. 首页 Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  background: linear-gradient(140deg, var(--c-brand-900) 0%, var(--c-brand-800) 40%, var(--c-brand-600) 100%);
  color: #fff;
  overflow: hidden;
  padding-block: var(--sp-11);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 70% 40%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 70% 40%, #000 20%, transparent 75%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  width: 620px; height: 620px;
  right: -180px; top: -180px;
  background: radial-gradient(circle, rgba(56, 196, 212, .28), transparent 68%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: var(--sp-9);
  align-items: center;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.4rem 0.9rem;
  border-radius: var(--r-full);
  background: rgba(56, 196, 212, .14);
  border: 1px solid rgba(56, 196, 212, .35);
  color: var(--c-accent-400);
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: var(--sp-5);
}
.hero__badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--c-accent-400);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .45; transform: scale(.82); }
}

.hero__title {
  font-size: clamp(2rem, 4.4vw, var(--fs-4xl));
  color: #fff;
  line-height: 1.14;
  margin-bottom: var(--sp-5);
  letter-spacing: -.025em;
}
.hero__title em {
  font-style: normal;
  background: linear-gradient(100deg, var(--c-accent-400), #8fe3ec);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__desc {
  font-size: var(--fs-md);
  color: rgba(255, 255, 255, .8);
  max-width: 54ch;
  margin-bottom: var(--sp-6);
  line-height: var(--lh-base);
}
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-bottom: var(--sp-7); }

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
  padding-top: var(--sp-6);
  border-top: 1px solid rgba(255, 255, 255, .14);
}
.hero__stat-num {
  display: block;
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  letter-spacing: -.02em;
}
.hero__stat-num sup { font-size: .5em; color: var(--c-accent-400); margin-left: 2px; }
.hero__stat-label {
  display: block;
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, .62);
  margin-top: var(--sp-1);
}

/* Hero 右侧卡片 */
.hero__panel {
  position: relative;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--r-xl);
  padding: var(--sp-6);
  backdrop-filter: blur(10px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .26);
}
.hero__panel-title {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--c-accent-400);
  font-weight: 700;
  margin-bottom: var(--sp-5);
  display: flex; align-items: center; gap: var(--sp-2);
}
.hero__panel-title svg { width: 16px; height: 16px; }

.hero__list { list-style: none; display: grid; gap: var(--sp-3); }
.hero__list-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--r-md);
  transition: background-color var(--t-base) var(--ease), transform var(--t-base) var(--ease);
}
.hero__list-item:hover { background: rgba(255, 255, 255, .12); transform: translateX(4px); }
.hero__list-icon {
  width: 38px; height: 38px;
  flex-shrink: 0;
  border-radius: var(--r-sm);
  background: rgba(56, 196, 212, .18);
  display: grid; place-items: center;
  color: var(--c-accent-400);
}
.hero__list-icon svg { width: 19px; height: 19px; }
.hero__list-title { font-size: var(--fs-base); font-weight: 600; color: #fff; line-height: 1.3; }
.hero__list-sub { font-size: var(--fs-xs); color: rgba(255, 255, 255, .58); }

/* --------------------------------------------------------------------------
   8. 卡片
   -------------------------------------------------------------------------- */
.card {
  position: relative;
  background: #fff;
  border: 1px solid var(--c-ink-200);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  transition: transform var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease),
              border-color var(--t-base) var(--ease);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-lg);
  border-color: var(--c-brand-100);
}

.card__icon {
  width: 52px; height: 52px;
  border-radius: var(--r-md);
  display: grid; place-items: center;
  background: var(--c-brand-50);
  color: var(--c-brand-600);
  margin-bottom: var(--sp-5);
  transition: background-color var(--t-base) var(--ease), color var(--t-base) var(--ease);
}
.card:hover .card__icon { background: var(--c-brand-600); color: #fff; }
.card__icon svg { width: 26px; height: 26px; }

.card__title { font-size: var(--fs-lg); margin-bottom: var(--sp-3); }
.card__desc { color: var(--c-ink-500); font-size: var(--fs-base); flex: 1; }

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--sp-5);
  font-weight: 600;
  font-size: var(--fs-base);
  color: var(--c-brand-600);
}
.card__link svg { width: 16px; height: 16px; transition: transform var(--t-base) var(--ease); }
.card:hover .card__link svg { transform: translateX(4px); }

/* 业务大卡（首页两大主业务） */
.biz-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--c-ink-200);
  border-radius: var(--r-xl);
  overflow: hidden;
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
  height: 100%;
}
.biz-card:hover { transform: translateY(-5px); box-shadow: var(--sh-lg); }

.biz-card__head {
  padding: var(--sp-6) var(--sp-6) var(--sp-5);
  background: linear-gradient(135deg, var(--c-brand-800), var(--c-brand-600));
  color: #fff;
  position: relative;
  overflow: hidden;
}
.biz-card--emc .biz-card__head {
  background: linear-gradient(135deg, #0a4a52, var(--c-accent-600));
}
.biz-card__head::after {
  content: "";
  position: absolute;
  right: -40px; top: -40px;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .07);
}
.biz-card__tag {
  display: inline-block;
  padding: 0.25rem 0.7rem;
  border-radius: var(--r-full);
  background: rgba(255, 255, 255, .18);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .08em;
  margin-bottom: var(--sp-4);
  position: relative; z-index: 1;
}
.biz-card__title {
  font-size: var(--fs-2xl);
  color: #fff;
  margin-bottom: var(--sp-2);
  position: relative; z-index: 1;
  line-height: 1.2;
}
.biz-card__en {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, .72);
  position: relative; z-index: 1;
}
.biz-card__body { padding: var(--sp-6); display: flex; flex-direction: column; flex: 1; }
.biz-card__desc { color: var(--c-ink-500); margin-bottom: var(--sp-5); }
.biz-card__body .btn { margin-top: auto; align-self: flex-start; }

.biz-card__chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-6);
}
.chip {
  display: inline-block;
  padding: 0.22rem 0.7rem;
  border-radius: var(--r-full);
  background: var(--c-ink-100);
  color: var(--c-ink-600);
  font-size: var(--fs-xs);
  font-weight: 500;
  white-space: nowrap;
}
.chip--brand { background: var(--c-brand-50); color: var(--c-brand-600); }
.chip--accent { background: var(--c-accent-100); color: var(--c-accent-600); }

/* --------------------------------------------------------------------------
   9. 数据条
   -------------------------------------------------------------------------- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-5);
}
.stat {
  text-align: center;
  padding: var(--sp-6) var(--sp-4);
  background: #fff;
  border: 1px solid var(--c-ink-200);
  border-radius: var(--r-lg);
}
.section--brand .stat {
  background: rgba(255, 255, 255, .07);
  border-color: rgba(255, 255, 255, .14);
}
.stat__num {
  display: block;
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--c-brand-600);
  line-height: 1.1;
  letter-spacing: -.02em;
}
.section--brand .stat__num { color: var(--c-accent-400); }
.stat__num sup { font-size: .45em; margin-left: 2px; }
.stat__label {
  display: block;
  margin-top: var(--sp-2);
  font-size: var(--fs-sm);
  color: var(--c-ink-500);
}
.section--brand .stat__label { color: rgba(255, 255, 255, .7); }

/* --------------------------------------------------------------------------
   10. 流程步骤
   -------------------------------------------------------------------------- */
.steps { counter-reset: step; }
.step {
  position: relative;
  padding-left: 4.5rem;
  padding-bottom: var(--sp-7);
}
.step:last-child { padding-bottom: 0; }
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0; top: 0;
  width: 3.25rem; height: 3.25rem;
  border-radius: var(--r-md);
  background: var(--c-brand-600);
  color: #fff;
  display: grid; place-items: center;
  font-weight: 800;
  font-size: var(--fs-md);
  letter-spacing: .02em;
  z-index: 1;
}
.step::after {
  content: "";
  position: absolute;
  left: 1.6rem; top: 3.6rem; bottom: 0;
  width: 2px;
  background: linear-gradient(var(--c-brand-100), var(--c-ink-100));
}
.step:last-child::after { display: none; }
.step__title { font-size: var(--fs-lg); margin-bottom: var(--sp-2); }
.step__desc { color: var(--c-ink-500); margin: 0; }

/* --------------------------------------------------------------------------
   11. 表格
   -------------------------------------------------------------------------- */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--c-ink-200);
  border-radius: var(--r-lg);
  background: #fff;
}
.table-wrap::-webkit-scrollbar { height: 8px; }
.table-wrap::-webkit-scrollbar-thumb { background: var(--c-ink-300); border-radius: var(--r-full); }
.table-wrap::-webkit-scrollbar-track { background: var(--c-ink-100); }

.data-table { width: 100%; min-width: 640px; font-size: var(--fs-base); }
.data-table thead th {
  background: var(--c-brand-800);
  color: #fff;
  text-align: left;
  padding: var(--sp-4);
  font-weight: 600;
  font-size: var(--fs-sm);
  letter-spacing: .02em;
  white-space: nowrap;
}
.data-table thead th:first-child { border-radius: var(--r-sm) 0 0 0; }
.data-table thead th:last-child { border-radius: 0 var(--r-sm) 0 0; }
.data-table tbody td {
  padding: var(--sp-4);
  border-bottom: 1px solid var(--c-ink-100);
  vertical-align: top;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:nth-child(even) { background: var(--c-ink-50); }
.data-table tbody tr:hover { background: var(--c-brand-50); }
.data-table td:first-child { font-weight: 700; color: var(--c-brand-700); white-space: nowrap; }
.data-table .td-num { font-family: var(--font-mono); font-size: var(--fs-sm); }

.table-hint {
  display: none;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-sm);
  color: var(--c-ink-400);
  margin-top: var(--sp-2);
}
.table-hint svg { width: 15px; height: 15px; }

/* --------------------------------------------------------------------------
   12. 文章卡片 / 资讯
   -------------------------------------------------------------------------- */
.news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-7);
}
.filter-btn {
  padding: 0.5rem 1.15rem;
  border-radius: var(--r-full);
  border: 1px solid var(--c-ink-200);
  background: #fff;
  color: var(--c-ink-600);
  font-size: var(--fs-base);
  font-weight: 500;
  transition: all var(--t-fast) var(--ease);
}
.filter-btn:hover { border-color: var(--c-brand-500); color: var(--c-brand-600); }
.filter-btn.is-active {
  background: var(--c-brand-600);
  border-color: var(--c-brand-600);
  color: #fff;
}

.post-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--c-ink-200);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
  height: 100%;
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--sh-lg); }

.post-card__thumb {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--c-brand-800), var(--c-brand-500));
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.post-card__thumb--accent { background: linear-gradient(135deg, #0a4a52, var(--c-accent-600)); }
.post-card__thumb--ink { background: linear-gradient(135deg, var(--c-ink-800), var(--c-ink-600)); }
.post-card__thumb::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 28px 28px;
}
.post-card__thumb svg {
  width: 46px; height: 46px;
  color: rgba(255, 255, 255, .34);
  position: relative; z-index: 1;
}
.post-card__cat {
  position: absolute;
  top: var(--sp-3); left: var(--sp-3);
  padding: 0.22rem 0.7rem;
  border-radius: var(--r-full);
  background: rgba(255, 255, 255, .94);
  color: var(--c-brand-700);
  font-size: var(--fs-xs);
  font-weight: 700;
  z-index: 2;
}

.post-card__body { padding: var(--sp-5); display: flex; flex-direction: column; flex: 1; }
.post-card__meta {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  font-size: var(--fs-sm);
  color: var(--c-ink-400);
  margin-bottom: var(--sp-3);
}
.post-card__meta span { display: inline-flex; align-items: center; gap: 5px; }
.post-card__meta svg { width: 14px; height: 14px; }
.post-card__title {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-3);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card__title a { color: inherit; }
.post-card__title a:hover { color: var(--c-brand-600); }
.post-card__excerpt {
  color: var(--c-ink-500);
  font-size: var(--fs-base);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--sp-4);
}
.post-card__more {
  font-weight: 600;
  font-size: var(--fs-base);
  color: var(--c-brand-600);
  display: inline-flex; align-items: center; gap: 5px;
  margin-top: auto;
}
.post-card__more svg { width: 15px; height: 15px; transition: transform var(--t-base) var(--ease); }
.post-card:hover .post-card__more svg { transform: translateX(3px); }

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--sp-10) var(--sp-5);
  color: var(--c-ink-400);
}
.empty-state svg { width: 48px; height: 48px; margin: 0 auto var(--sp-4); opacity: .5; }

/* --------------------------------------------------------------------------
   13. 面包屑 / 页面头
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  background: linear-gradient(135deg, var(--c-brand-900) 0%, var(--c-brand-700) 100%);
  color: #fff;
  padding-block: var(--sp-9) var(--sp-8);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 100% at 80% 30%, #000, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 80% 100% at 80% 30%, #000, transparent 72%);
}
.page-hero__inner { position: relative; z-index: 1; }
.page-hero__title {
  color: #fff;
  font-size: clamp(1.75rem, 3.6vw, var(--fs-3xl));
  margin-bottom: var(--sp-3);
}
.page-hero__desc {
  color: rgba(255, 255, 255, .78);
  font-size: var(--fs-md);
  max-width: 68ch;
  margin: 0;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2);
  list-style: none;
  font-size: var(--fs-sm);
  margin-bottom: var(--sp-4);
  padding: 0;
}
.breadcrumb li { display: flex; align-items: center; gap: var(--sp-2); }
.breadcrumb li + li::before {
  content: "/";
  color: rgba(255, 255, 255, .35);
}
.breadcrumb a { color: rgba(255, 255, 255, .7); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb [aria-current="page"] { color: #fff; font-weight: 500; }

/* 浅色版面包屑（用于内容区） */
.breadcrumb--on-light li + li::before { color: var(--c-ink-300); }
.breadcrumb--on-light a { color: var(--c-ink-500); }
.breadcrumb--on-light a:hover { color: var(--c-brand-600); }
.breadcrumb--on-light [aria-current="page"] { color: var(--c-ink-800); }

/* --------------------------------------------------------------------------
   14. 文章详情排版
   -------------------------------------------------------------------------- */
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: var(--sp-8);
  align-items: start;
}
.article {
  min-width: 0;
}
.article__title {
  font-size: clamp(1.5rem, 3vw, var(--fs-2xl));
  margin-bottom: var(--sp-4);
  line-height: 1.28;
}
.article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-4);
  padding-bottom: var(--sp-5);
  border-bottom: 1px solid var(--c-ink-100);
  margin-bottom: var(--sp-6);
  font-size: var(--fs-sm);
  color: var(--c-ink-400);
}
.article__meta span { display: inline-flex; align-items: center; gap: 5px; }
.article__meta svg { width: 15px; height: 15px; }

.article__body { font-size: var(--fs-md); line-height: 1.85; color: var(--c-ink-700); }
.article__body h2 {
  font-size: var(--fs-xl);
  margin: var(--sp-7) 0 var(--sp-4);
  padding-left: var(--sp-4);
  border-left: 4px solid var(--c-accent-500);
  scroll-margin-top: 100px;
}
.article__body h3 {
  font-size: var(--fs-lg);
  margin: var(--sp-6) 0 var(--sp-3);
  scroll-margin-top: 100px;
}
.article__body p { margin-bottom: var(--sp-4); }
.article__body ul, .article__body ol {
  margin: 0 0 var(--sp-4);
  padding-left: 1.4rem;
}
.article__body li { margin-bottom: var(--sp-2); }
.article__body ul li::marker { color: var(--c-accent-500); }
.article__body ol li::marker { color: var(--c-brand-600); font-weight: 700; }
.article__body strong { color: var(--c-ink-900); font-weight: 700; }
.article__body blockquote {
  margin: var(--sp-5) 0;
  padding: var(--sp-4) var(--sp-5);
  background: var(--c-brand-50);
  border-left: 4px solid var(--c-brand-500);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  color: var(--c-ink-700);
}
.article__body blockquote p:last-child { margin-bottom: 0; }
.article__body code {
  font-family: var(--font-mono);
  font-size: .875em;
  background: var(--c-ink-100);
  padding: .15em .4em;
  border-radius: var(--r-sm);
  color: var(--c-brand-700);
}
.article__body figure { margin: var(--sp-6) 0; }
.article__body figcaption {
  text-align: center;
  font-size: var(--fs-sm);
  color: var(--c-ink-400);
  margin-top: var(--sp-3);
}
.article__body .table-wrap { margin: var(--sp-5) 0; }

.article__note {
  margin: var(--sp-6) 0;
  padding: var(--sp-5);
  background: #fffdf5;
  border: 1px solid #f0e0b8;
  border-left: 4px solid var(--c-warning);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-size: var(--fs-base);
  color: var(--c-ink-700);
}
.article__note strong { color: #8a5a00; }

.article__footer {
  margin-top: var(--sp-8);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--c-ink-100);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}
.article__tags { display: flex; flex-wrap: wrap; gap: var(--sp-2); }

.share-row { display: flex; align-items: center; gap: var(--sp-2); }
.share-row__label { font-size: var(--fs-sm); color: var(--c-ink-400); }
.share-btn {
  width: 36px; height: 36px;
  border-radius: var(--r-sm);
  border: 1px solid var(--c-ink-200);
  display: grid; place-items: center;
  color: var(--c-ink-500);
  transition: all var(--t-fast) var(--ease);
}
.share-btn:hover { border-color: var(--c-brand-500); color: var(--c-brand-600); background: var(--c-brand-50); }
.share-btn svg { width: 17px; height: 17px; }

/* 侧栏 */
.sidebar { display: grid; gap: var(--sp-5); position: sticky; top: calc(var(--header-h) + 24px); }
.widget {
  background: #fff;
  border: 1px solid var(--c-ink-200);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
}
.widget__title {
  font-size: var(--fs-md);
  margin-bottom: var(--sp-4);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--c-ink-100);
  display: flex; align-items: center; gap: var(--sp-2);
}
.widget__title::before {
  content: "";
  width: 4px; height: 16px;
  background: var(--c-accent-500);
  border-radius: var(--r-full);
}
.widget__list { list-style: none; display: grid; gap: var(--sp-3); }
.widget__list a {
  display: block;
  font-size: var(--fs-base);
  color: var(--c-ink-600);
  line-height: 1.5;
  padding-left: var(--sp-4);
  position: relative;
}
.widget__list a::before {
  content: "";
  position: absolute;
  left: 0; top: .62em;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--c-ink-300);
  transition: background-color var(--t-fast) var(--ease);
}
.widget__list a:hover { color: var(--c-brand-600); }
.widget__list a:hover::before { background: var(--c-accent-500); }

.widget__cta {
  background: linear-gradient(140deg, var(--c-brand-800), var(--c-brand-600));
  color: #fff;
  border: none;
}
.widget__cta .widget__title { color: #fff; border-bottom-color: rgba(255,255,255,.18); }
.widget__cta p { color: rgba(255,255,255,.78); font-size: var(--fs-base); margin-bottom: var(--sp-4); }

/* 上一篇/下一篇 */
.post-nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-6);
}
.post-nav__item {
  padding: var(--sp-4) var(--sp-5);
  border: 1px solid var(--c-ink-200);
  border-radius: var(--r-md);
  background: #fff;
  transition: all var(--t-base) var(--ease);
}
.post-nav__item:hover { border-color: var(--c-brand-500); background: var(--c-brand-50); }
.post-nav__label {
  display: block;
  font-size: var(--fs-xs);
  color: var(--c-ink-400);
  margin-bottom: var(--sp-1);
}
.post-nav__title {
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--c-ink-800);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-nav__item--next { text-align: right; }
.post-nav__item--disabled { opacity: .45; pointer-events: none; }

/* --------------------------------------------------------------------------
   15. 表单
   -------------------------------------------------------------------------- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-5);
}
.form-field { display: flex; flex-direction: column; gap: var(--sp-2); }
.form-field--full { grid-column: 1 / -1; }

.form-label {
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--c-ink-800);
}
.form-label .req { color: var(--c-danger); margin-left: 3px; }

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--c-ink-200);
  border-radius: var(--r-md);
  background: #fff;
  font-size: var(--fs-base);
  color: var(--c-ink-800);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
  appearance: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--c-ink-400); }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--c-brand-500);
  box-shadow: 0 0 0 3px rgba(26, 110, 196, .12);
}
.form-textarea { min-height: 130px; resize: vertical; line-height: 1.65; }

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7a89' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  background-size: 18px;
  padding-right: 2.5rem;
}

.form-field.has-error .form-input,
.form-field.has-error .form-select,
.form-field.has-error .form-textarea {
  border-color: var(--c-danger);
  box-shadow: 0 0 0 3px rgba(192, 57, 43, .1);
}
.form-error {
  font-size: var(--fs-sm);
  color: var(--c-danger);
  display: none;
  align-items: center;
  gap: 4px;
}
.form-field.has-error .form-error { display: flex; }
.form-error svg { width: 14px; height: 14px; flex-shrink: 0; }

.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  font-size: var(--fs-sm);
  color: var(--c-ink-500);
}
.form-check input {
  width: 18px; height: 18px;
  margin-top: 2px;
  accent-color: var(--c-brand-600);
  flex-shrink: 0;
}

.form-alert {
  display: none;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  border-radius: var(--r-md);
  font-size: var(--fs-base);
  margin-bottom: var(--sp-5);
}
.form-alert.is-visible { display: flex; }
.form-alert--success {
  background: #eaf7f0;
  border: 1px solid #b6e0c8;
  color: #14663c;
}
.form-alert--success svg { color: var(--c-success); }
.form-alert svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px; }

/* --------------------------------------------------------------------------
   16. 联系信息块
   -------------------------------------------------------------------------- */
.contact-list { display: grid; gap: var(--sp-5); }
.contact-item {
  display: flex;
  gap: var(--sp-4);
  padding: var(--sp-5);
  background: #fff;
  border: 1px solid var(--c-ink-200);
  border-radius: var(--r-lg);
  transition: border-color var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}
.contact-item:hover { border-color: var(--c-brand-100); box-shadow: var(--sh-md); }
.contact-item__icon {
  width: 46px; height: 46px;
  flex-shrink: 0;
  border-radius: var(--r-md);
  background: var(--c-brand-50);
  color: var(--c-brand-600);
  display: grid; place-items: center;
}
.contact-item__icon svg { width: 22px; height: 22px; }
.contact-item__label {
  font-size: var(--fs-sm);
  color: var(--c-ink-400);
  margin-bottom: var(--sp-1);
}
.contact-item__value {
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--c-ink-900);
  line-height: 1.4;
  word-break: break-word;
}
.contact-item__value a { color: inherit; }
.contact-item__value a:hover { color: var(--c-brand-600); }
.contact-item__sub { font-size: var(--fs-sm); color: var(--c-ink-500); margin-top: var(--sp-1); }

/* ---- 地图区：地图 + 导航按钮 ---- */
.map-block {
  display: grid;
  gap: var(--sp-4);
}

.map-canvas {
  position: relative;
  display: block;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--c-ink-200);
  background: #eef2ee;
  aspect-ratio: 16 / 8;
  transition: box-shadow var(--t-base) var(--ease);
}
.map-canvas:hover { box-shadow: var(--sh-md); }

.map-canvas__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}
.map-canvas:hover .map-canvas__img { transform: scale(1.03); }

.map-canvas__hint {
  position: absolute;
  left: var(--sp-4);
  bottom: var(--sp-4);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--c-brand-600);
  color: #fff;
  font-size: var(--fs-sm);
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  box-shadow: var(--sh-sm);
  transition: background var(--t-base) var(--ease);
}
.map-canvas:hover .map-canvas__hint { background: var(--c-brand-700); }
.map-canvas__hint svg { width: 14px; height: 14px; }

.map-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: center;
}

/* --------------------------------------------------------------------------
   17. 资质 / 认证占位
   -------------------------------------------------------------------------- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-5);
}
.cert {
  background: #fff;
  border: 1px solid var(--c-ink-200);
  border-radius: var(--r-lg);
  padding: var(--sp-6) var(--sp-5);
  text-align: center;
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}
.cert:hover { transform: translateY(-3px); box-shadow: var(--sh-md); }
.cert__mark {
  width: 56px; height: 56px;
  margin: 0 auto var(--sp-4);
  border-radius: var(--r-md);
  background: var(--c-brand-50);
  color: var(--c-brand-600);
  display: grid; place-items: center;
}
.cert__mark svg { width: 28px; height: 28px; }
.cert__name { font-size: var(--fs-base); font-weight: 700; color: var(--c-ink-900); margin-bottom: var(--sp-1); }
.cert__no {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--c-ink-400);
  word-break: break-all;
}

/* --------------------------------------------------------------------------
   18. CTA 区块
   -------------------------------------------------------------------------- */
.cta-band {
  position: relative;
  background: linear-gradient(120deg, var(--c-brand-800) 0%, var(--c-brand-600) 50%, var(--c-accent-600) 100%);
  border-radius: var(--r-xl);
  padding: var(--sp-9) var(--sp-8);
  color: #fff;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--sp-6);
  align-items: center;
}
.cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 70% 100% at 20% 50%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 100% at 20% 50%, #000, transparent 70%);
}
.cta-band__inner { position: relative; z-index: 1; }
.cta-band__title { color: #fff; font-size: var(--fs-2xl); margin-bottom: var(--sp-3); }
.cta-band__desc { color: rgba(255, 255, 255, .82); margin: 0; max-width: 56ch; }
.cta-band__actions { position: relative; z-index: 1; display: flex; gap: var(--sp-3); flex-wrap: wrap; }

/* --------------------------------------------------------------------------
   19. 页脚
   -------------------------------------------------------------------------- */
.footer {
  background: var(--c-brand-900);
  color: rgba(255, 255, 255, .68);
  font-size: var(--fs-base);
  padding-top: var(--sp-9);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
  gap: var(--sp-7);
  padding-bottom: var(--sp-7);
}
.footer__brand { display: flex; flex-direction: column; gap: var(--sp-4); }
.footer__logo { display: inline-flex; align-items: center; gap: var(--sp-3); }
.footer__logo .logo__name { color: #fff; }
.footer__logo .logo__sub { color: rgba(255, 255, 255, .45); }
.footer__logo .logo__mark { background: transparent; border-color: transparent; box-shadow: none; }
.footer__about { font-size: var(--fs-sm); line-height: 1.75; color: rgba(255, 255, 255, .58); }

.footer__title {
  color: #fff;
  font-size: var(--fs-base);
  font-weight: 700;
  margin-bottom: var(--sp-5);
  letter-spacing: .01em;
}
.footer__links { list-style: none; display: grid; gap: var(--sp-3); }
.footer__links a {
  color: rgba(255, 255, 255, .62);
  font-size: var(--fs-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.footer__links a::before {
  content: "";
  width: 0; height: 1px;
  background: var(--c-accent-400);
  transition: width var(--t-base) var(--ease);
}
.footer__links a:hover { color: #fff; }
.footer__links a:hover::before { width: 10px; }

.footer__contact { list-style: none; display: grid; gap: var(--sp-4); }
.footer__contact li {
  display: flex;
  gap: var(--sp-3);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, .62);
  line-height: 1.65;
}
.footer__contact svg {
  width: 17px; height: 17px;
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--c-accent-400);
}
.footer__contact a { color: rgba(255, 255, 255, .78); }
.footer__contact a:hover { color: #fff; }

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding-block: var(--sp-5);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, .45);
}
.footer__bottom-links { display: flex; flex-wrap: wrap; gap: var(--sp-5); list-style: none; }
.footer__bottom-links a { color: rgba(255, 255, 255, .5); }
.footer__bottom-links a:hover { color: #fff; }

/* --------------------------------------------------------------------------
   20. 返回顶部
   -------------------------------------------------------------------------- */
.to-top {
  position: fixed;
  right: var(--sp-5);
  bottom: var(--sp-5);
  width: 46px; height: 46px;
  border-radius: var(--r-md);
  background: var(--c-brand-600);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: var(--sh-brand);
  z-index: var(--z-top);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--t-base) var(--ease);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--c-brand-500); transform: translateY(-3px); }
.to-top svg { width: 20px; height: 20px; }

/* --------------------------------------------------------------------------
   20.1 电话咨询按钮（右下角，位于返回顶部上方）
   -------------------------------------------------------------------------- */
.call-btn {
  position: fixed;
  right: var(--sp-5);
  bottom: calc(var(--sp-5) + 46px + 10px);
  z-index: var(--z-top);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 18px 0 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, #1a6ec4, #0e4275);
  color: #fff;
  font-size: var(--fs-sm);
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 6px 20px rgba(17, 85, 160, .35);
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}
.call-btn svg { width: 20px; height: 20px; flex-shrink: 0; }
.call-btn:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(17, 85, 160, .45);
}

/* --------------------------------------------------------------------------
   21. 滚动进场动画
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out);
  will-change: opacity, transform;
}
[data-reveal].is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* --------------------------------------------------------------------------
   22. 提示条 / 占位说明
   -------------------------------------------------------------------------- */
.placeholder-note {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  background: #fffdf5;
  border: 1px dashed #e0c98f;
  border-radius: var(--r-md);
  font-size: var(--fs-sm);
  color: #7a5a12;
  line-height: 1.7;
}
.placeholder-note svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 3px; }
.placeholder-note code {
  font-family: var(--font-mono);
  background: rgba(0,0,0,.05);
  padding: .1em .35em;
  border-radius: var(--r-sm);
  font-size: .92em;
}

/* --------------------------------------------------------------------------
   23. Tab 切换
   -------------------------------------------------------------------------- */
.tabs {
  display: flex;
  gap: var(--sp-1);
  border-bottom: 1px solid var(--c-ink-200);
  margin-bottom: var(--sp-6);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  padding: var(--sp-3) var(--sp-5);
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--c-ink-500);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: all var(--t-fast) var(--ease);
  margin-bottom: -1px;
}
.tab:hover { color: var(--c-brand-600); }
.tab.is-active { color: var(--c-brand-600); border-bottom-color: var(--c-brand-600); }
.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: fadeIn .3s var(--ease); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* --------------------------------------------------------------------------
   24. 双栏布局（图文）
   -------------------------------------------------------------------------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-8);
  align-items: center;
}
.split--reverse .split__media { order: -1; }
.split__title { font-size: var(--fs-2xl); margin-bottom: var(--sp-4); }

.feature-list { list-style: none; display: grid; gap: var(--sp-4); }
.feature-list li {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
}
.feature-list__icon {
  width: 22px; height: 22px;
  flex-shrink: 0;
  margin-top: 3px;
  border-radius: 50%;
  background: var(--c-accent-100);
  color: var(--c-accent-600);
  display: grid; place-items: center;
}
.feature-list__icon svg { width: 13px; height: 13px; }
.feature-list strong { display: block; color: var(--c-ink-900); margin-bottom: 2px; }
.feature-list span { font-size: var(--fs-base); color: var(--c-ink-500); }
.feature-list b { color: var(--c-ink-900); font-weight: 700; }

/* 通用双栏（左文右列表/右图，带响应式折叠） */
.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: var(--sp-8);
  align-items: start;
}
.section-head--tight { margin-bottom: var(--sp-5); }

/* 首页公司简介 */
.about-brief {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: var(--sp-8);
  align-items: center;
}
.about-brief__lead {
  font-size: var(--fs-base);
  line-height: 1.85;
  color: var(--c-ink-600);
  margin-bottom: var(--sp-4);
}
.about-brief__note {
  font-size: var(--fs-base);
  line-height: 1.85;
  color: var(--c-ink-600);
  margin-bottom: var(--sp-5);
}
.about-brief__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
}
.about-brief .feature-list { margin-bottom: var(--sp-6); }

/* 信息卡（公司简介等场景） */
.info-card {
  background: #fff;
  border: 1px solid var(--c-ink-100);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-md);
  padding: var(--sp-6);
  display: grid;
  gap: 0;
}
.info-card__row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-4);
  align-items: baseline;
  justify-content: space-between;
  padding: var(--sp-4) 0;
  border-bottom: 1px dashed var(--c-ink-100);
}
.info-card__row:first-child { padding-top: 0; }
.info-card__row:last-child { border-bottom: 0; padding-bottom: 0; }
.info-card__label {
  flex-shrink: 0;
  font-size: var(--fs-sm);
  color: var(--c-ink-400);
  letter-spacing: .02em;
}
.info-card__value {
  text-align: right;
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--c-ink-900);
  line-height: 1.5;
}
.info-card__value a { color: var(--c-brand-700); }
.info-card__value a:hover { text-decoration: underline; }

/* --------------------------------------------------------------------------
   25. 响应式 —— 1024px
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  :root { --header-h: 64px; }

  .hero__inner { grid-template-columns: 1fr; gap: var(--sp-7); }
  .hero__panel { max-width: 560px; }
  .hero { padding-block: var(--sp-9); }

  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }

  .footer__grid { grid-template-columns: repeat(2, 1fr); gap: var(--sp-6); }

  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }

  .split { grid-template-columns: 1fr; gap: var(--sp-6); }
  .split--reverse .split__media { order: 0; }

  .about-brief { grid-template-columns: 1fr; gap: var(--sp-6); }
  .split-grid { grid-template-columns: 1fr; gap: var(--sp-6); }

  .cta-band { grid-template-columns: 1fr; padding: var(--sp-7) var(--sp-6); }

}

/* --------------------------------------------------------------------------
   26. 响应式 —— 900px（切换移动导航）
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .nav__menu, .nav__actions .btn { display: none; }
  .nav__toggle { display: grid; }
  .topbar { display: none; }

  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

/* --------------------------------------------------------------------------
   27. 响应式 —— 720px
   -------------------------------------------------------------------------- */
@media (max-width: 720px) {
  :root {
    --fs-3xl: 1.75rem;
    --fs-2xl: 1.4rem;
    --fs-xl: 1.15rem;
  }

  .container { padding-inline: var(--sp-4); }
  .section { padding-block: var(--sp-8); }
  .section--tight { padding-block: var(--sp-7); }
  .hero { padding-block: var(--sp-8); }

  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); gap: var(--sp-3); }
  .stat { padding: var(--sp-5) var(--sp-3); }

  .hero__stats { gap: var(--sp-4); }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn { width: 100%; }

  .form-grid { grid-template-columns: 1fr; }
  .post-nav { grid-template-columns: 1fr; }
  .post-nav__item--next { text-align: left; }

  .footer__grid { grid-template-columns: 1fr; gap: var(--sp-6); }
  .footer__bottom { flex-direction: column; text-align: center; gap: var(--sp-3); }
  .footer__bottom-links { justify-content: center; }

  .article__footer { flex-direction: column; align-items: flex-start; }

  .cta-band { padding: var(--sp-6) var(--sp-5); border-radius: var(--r-lg); }
  .cta-band__actions { flex-direction: column; align-items: stretch; }
  .cta-band__actions .btn { width: 100%; }

  .table-hint { display: flex; }

  .to-top { right: var(--sp-4); bottom: var(--sp-4); width: 42px; height: 42px; }

  .step { padding-left: 3.6rem; }
  .step::before { width: 2.7rem; height: 2.7rem; font-size: var(--fs-sm); }
  .step::after { left: 1.33rem; top: 3.05rem; }

  .info-card { padding: var(--sp-5); }
  .info-card__row { flex-direction: column; gap: 4px; }
  .info-card__value { text-align: left; }
  .about-brief__actions { flex-direction: column; align-items: stretch; }
  .about-brief__actions .btn { width: 100%; }

  /* 地图区：小屏 */
  .map-canvas { aspect-ratio: 4 / 3; border-radius: var(--r-md); }
  .map-canvas__hint { left: var(--sp-3); bottom: var(--sp-3); font-size: 12px; padding: 6px 12px; }
  .map-nav { flex-direction: column; }
  .map-nav .btn { width: 100%; }

  /* 电话按钮：手机端缩为圆形图标 */
  .call-btn {
    right: var(--sp-4);
    bottom: calc(var(--sp-4) + 42px + 10px);
    width: 46px;
    height: 46px;
    padding: 0;
    justify-content: center;
    border-radius: 50%;
  }
  .call-btn__text { display: none; }
}

/* --------------------------------------------------------------------------
   28. 响应式 —— 480px
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
  .stats-bar { grid-template-columns: 1fr; }
  .hero__stats { grid-template-columns: 1fr; gap: var(--sp-3); }
  .hero__stat-num { font-size: var(--fs-xl); }

  .logo__mark { width: 36px; height: 36px; }
  .logo__mark img { width: 24px; height: 24px; }
  .logo__name { font-size: var(--fs-base); }
  .logo__sub { font-size: 10px; letter-spacing: .08em; }

  .drawer { width: 92vw; }

  .hero__panel { padding: var(--sp-5); }
  .filter-btn { font-size: var(--fs-sm); padding: 0.45rem 0.95rem; }

  .biz-card__title { font-size: var(--fs-xl); }
}

/* --------------------------------------------------------------------------
   29. 打印样式
   -------------------------------------------------------------------------- */
@media print {
  .header, .footer, .to-top, .drawer, .overlay, .cta-band, .sidebar { display: none !important; }
  body { font-size: 11pt; color: #000; }
  .container { max-width: 100%; padding: 0; }
  a { color: #000; text-decoration: underline; }
  .section { padding-block: 1rem; }
  .hero, .page-hero { background: none !important; color: #000 !important; padding-block: 1rem; }
  .page-hero__title, .hero__title { color: #000 !important; }
  .page-hero__desc, .hero__desc { color: #333 !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}