@charset "UTF-8";
/* ==========================================================================
   深圳芝光科技服务有限公司 · 官网样式
   设计依据：文化墙视觉规范（科技蓝 + 商务金 + 简约白；少文字、多图表、强视觉、模块化）
   ========================================================================== */

/* ---------------------------------------------------------------- Tokens */
:root {
  /* 品牌色 —— 取自 Logo 主色 #283C84 */
  --brand-900: #101B45;
  --brand-800: #17255C;
  --brand-700: #1E2E70;
  --brand-600: #283C84;   /* 主色 */
  --brand-500: #35509C;
  --brand-400: #5C74B8;
  --brand-300: #93A6D4;
  --brand-200: #C3CDE9;
  --brand-100: #E4E9F6;
  --brand-50:  #F3F6FC;

  /* 商务金 */
  --gold-700: #8C6C2C;
  --gold-600: #A8873F;
  --gold-500: #C6A15B;   /* 辅色 */
  --gold-400: #D8BC85;
  --gold-200: #EFE2C6;
  --gold-100: #F7F1E3;

  /* 中性 */
  --ink-900: #14161C;
  --ink-800: #23262F;
  --ink-700: #3B4050;
  --ink-600: #565C6E;
  --ink-500: #717887;
  --ink-400: #9AA1AF;
  --ink-300: #C6CBD5;
  --ink-200: #E2E5EB;
  --ink-100: #EFF1F5;
  --paper:   #FFFFFF;
  --paper-2: #F7F8FB;
  --paper-3: #F1F3F8;

  --ok:   #1E874B;
  --warn: #B4761A;
  --err:  #C0392B;

  /* 排版 */
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC",
               "Noto Sans SC", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Segoe UI Semibold", var(--font-sans);

  /* 尺寸与节奏 */
  --container: 1200px;
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 18px;
  --sect-y: clamp(64px, 8vw, 116px);
  --gap: clamp(18px, 2.4vw, 28px);

  /* 阴影 */
  --sh-xs: 0 1px 2px rgba(18, 28, 68, .06);
  --sh-sm: 0 4px 14px rgba(18, 28, 68, .07);
  --sh-md: 0 12px 32px rgba(18, 28, 68, .10);
  --sh-lg: 0 24px 60px rgba(18, 28, 68, .14);

  --ease: cubic-bezier(.22, .61, .36, 1);
  --header-h: 74px;
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 { margin: 0; color: var(--ink-900); font-weight: 700; line-height: 1.32; letter-spacing: -.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: var(--brand-600); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--brand-500); }
button { font: inherit; color: inherit; cursor: pointer; }
table { border-collapse: collapse; width: 100%; }
input, textarea, select { font: inherit; color: inherit; }

.ico { width: 1.15em; height: 1.15em; flex: 0 0 auto; }
.svg-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: clamp(18px, 4vw, 32px); }

.skip-link {
  position: absolute; left: 50%; top: -60px; transform: translateX(-50%);
  background: var(--brand-600); color: #fff; padding: 10px 20px; border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  z-index: 999; transition: top .2s;
}
.skip-link:focus { top: 0; color: #fff; }

:focus-visible { outline: 2px solid var(--brand-500); outline-offset: 3px; border-radius: 3px; }

/* ---------------------------------------------------------------- Topbar */
.topbar {
  background: var(--brand-800);
  color: rgba(255, 255, 255, .82);
  font-size: 13px;
  line-height: 1;
  padding: 9px 0;
}
.topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.topbar__slogan { display: flex; align-items: center; gap: 9px; letter-spacing: .04em; }
.topbar__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold-500); box-shadow: 0 0 0 3px rgba(198, 161, 91, .25); }
.topbar__en { font-style: normal; font-size: 11px; letter-spacing: .12em; opacity: .45; text-transform: uppercase; }
.topbar__meta { display: flex; align-items: center; gap: 22px; }
.topbar__meta li { display: flex; align-items: center; gap: 6px; }
.topbar__meta a { color: inherit; }
.topbar__meta a:hover { color: var(--gold-400); }

/* ---------------------------------------------------------------- Header */
.site-header {
  position: sticky; top: 0; z-index: 200;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--ink-200);
  transition: box-shadow .3s var(--ease), background .3s var(--ease);
}
.site-header.is-stuck { box-shadow: var(--sh-sm); border-bottom-color: transparent; }
/* 页头三件套（品牌 237px + 导航 + CTA 162px）必须塞进 1200px 的内容容器，
   否则 CTA 会突出正文栏右边界（实测 ≥1401px 时外溢 36~107px，与下方内容不对齐）。
   故 gap 由 24px 收到 16px，导航内边距在基础样式上就收紧，不再依赖媒体查询。 */
.site-header__inner { display: flex; align-items: center; gap: 16px; min-height: var(--header-h); }

.brand { display: flex; align-items: center; flex: 0 0 auto; }
.brand__logo { height: 42px; width: auto; }

.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: 2px; }
.nav__link {
  display: block; position: relative;
  padding: 10px 11px; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 500; color: var(--ink-800);
  white-space: nowrap;
}
.nav__link::after {
  content: ""; position: absolute; left: 11px; right: 11px; bottom: 4px; height: 2px;
  background: var(--brand-600); transform: scaleX(0); transform-origin: left;
  transition: transform .28s var(--ease); border-radius: 2px;
}
.nav__link:hover { color: var(--brand-600); background: var(--brand-50); }
.nav__link:hover::after, .nav__link.is-active::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--brand-600); font-weight: 600; }
.nav__foot { display: none; }

.site-header__actions { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }

.burger {
  display: none; width: 44px; height: 44px; border: 1px solid var(--ink-200); background: var(--paper);
  border-radius: var(--radius-sm); padding: 12px 11px; flex-direction: column; justify-content: space-between;
}
.burger span { display: block; height: 2px; background: var(--brand-700); border-radius: 2px; transition: transform .3s var(--ease), opacity .2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

.nav-mask {
  position: fixed; inset: 0; background: rgba(16, 27, 69, .45); z-index: 190;
  opacity: 0; transition: opacity .3s var(--ease);
}
.nav-mask.is-on { opacity: 1; }

/* ---------------------------------------------------------------- Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 24px; border: 1px solid transparent; border-radius: 999px;
  font-size: 15px; font-weight: 600; line-height: 1.2; letter-spacing: .01em;
  cursor: pointer; white-space: nowrap;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}
.btn .ico { transition: transform .22s var(--ease); }
.btn:hover .ico { transform: translateX(3px); }
.btn--primary { background: var(--brand-600); color: #fff; box-shadow: 0 8px 20px rgba(40, 60, 132, .22); }
.btn--primary:hover { background: var(--brand-700); color: #fff; transform: translateY(-2px); box-shadow: 0 14px 28px rgba(40, 60, 132, .28); }
.btn--gold { background: linear-gradient(120deg, var(--gold-500), var(--gold-400)); color: #3A2B08; box-shadow: 0 8px 20px rgba(198, 161, 91, .3); }
.btn--gold:hover { color: #2A1E04; transform: translateY(-2px); box-shadow: 0 14px 30px rgba(198, 161, 91, .38); }
.btn--ghost { background: transparent; border-color: var(--brand-200); color: var(--brand-600); }
.btn--ghost:hover { border-color: var(--brand-500); background: var(--brand-50); color: var(--brand-700); }
.btn--ghost-light { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .32); color: #fff; }
.btn--ghost-light:hover { background: rgba(255, 255, 255, .18); color: #fff; border-color: rgba(255, 255, 255, .6); }
.btn--light { background: #fff; color: var(--brand-700); box-shadow: var(--sh-sm); }
.btn--light:hover { color: var(--brand-600); transform: translateY(-2px); }
.btn--sm { padding: 8px 16px; font-size: 14px; }
.btn--lg { padding: 14px 30px; font-size: 16px; }
.btn--block { width: 100%; }
.btn--danger { background: #fff; border-color: #E7C4C0; color: var(--err); }
.btn--danger:hover { background: #FDF3F2; border-color: var(--err); }

/* ---------------------------------------------------------------- Section */
.section { padding-block: var(--sect-y); position: relative; }
.section--tint { background: var(--paper-2); }
.section--brand { background: var(--brand-800); color: rgba(255, 255, 255, .82); }
.section--brand h1, .section--brand h2, .section--brand h3 { color: #fff; }
.section--tight { padding-block: clamp(44px, 5.5vw, 76px); }

.section-head { max-width: 800px; margin-bottom: clamp(32px, 4.4vw, 56px); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head__eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 12.5px; font-weight: 600; letter-spacing: .2em; text-transform: uppercase;
  color: var(--gold-600); margin-bottom: 14px;
}
.section-head__eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--gold-500); border-radius: 2px; }
.section-head--center .section-head__eyebrow::after { content: ""; width: 26px; height: 2px; background: var(--gold-500); border-radius: 2px; }
.section-head__title { font-size: clamp(26px, 3.4vw, 40px); letter-spacing: -.02em; }
.section-head__title em { font-style: normal; color: var(--brand-600); }
.section-head__sub { margin-top: 14px; font-size: clamp(15px, 1.3vw, 17px); color: var(--ink-500); line-height: 1.85; }
.section--brand .section-head__sub { color: rgba(255, 255, 255, .66); }
.section--brand .section-head__eyebrow { color: var(--gold-400); }

.rule { height: 1px; background: linear-gradient(90deg, var(--brand-200), rgba(226, 229, 235, 0)); border: 0; margin: 0; }

/* 蓝图网格底纹 */
.blueprint {
  position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 10%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 10%, transparent 78%);
}
.section > .container { position: relative; z-index: 1; }

/* ---------------------------------------------------------------- Hero */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 520px at 78% -6%, rgba(53, 80, 156, .62), transparent 62%),
    radial-gradient(720px 460px at 8% 108%, rgba(198, 161, 91, .16), transparent 66%),
    linear-gradient(150deg, var(--brand-900) 0%, var(--brand-800) 42%, var(--brand-700) 100%);
  color: #fff;
  padding-block: clamp(72px, 9.5vw, 132px) 0;
}
.hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(198, 161, 91, .55), transparent);
}
.hero__skyline {
  position: absolute; left: 0; right: 0; bottom: 0; height: clamp(120px, 17vw, 220px);
  opacity: .13; pointer-events: none;
}
.hero__inner { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr); gap: clamp(28px, 4vw, 60px); align-items: center; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 16px 7px 8px; margin-bottom: 26px;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 999px; font-size: 13.5px; letter-spacing: .06em; color: rgba(255, 255, 255, .9);
}
.hero__eyebrow b { display: inline-block; padding: 2px 9px; border-radius: 999px; background: var(--gold-500); color: #3A2B08; font-size: 12px; font-weight: 700; letter-spacing: .04em; }
.hero__title { color: #fff; font-size: clamp(32px, 5vw, 58px); line-height: 1.3; letter-spacing: -.02em; }
.hero__title .grad {
  background: linear-gradient(100deg, #FFF 20%, var(--gold-400) 92%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__lead { margin-top: 24px; max-width: 34em; font-size: clamp(15px, 1.35vw, 17.5px); line-height: 1.95; color: rgba(255, 255, 255, .74); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }
.hero__note { margin-top: 26px; font-size: 13px; color: rgba(255, 255, 255, .48); letter-spacing: .04em; }

/* Hero 右侧：一核三轴速览卡 */
.hero-core {
  position: relative; padding: 26px 26px 22px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 30px 70px rgba(6, 12, 36, .38);
}
.hero-core__head { display: flex; align-items: baseline; justify-content: space-between; gap: 14px; margin-bottom: 18px; }
.hero-core__title { font-size: 15px; font-weight: 700; letter-spacing: .1em; color: #fff; }
.hero-core__en { font-size: 11px; letter-spacing: .16em; color: rgba(255, 255, 255, .4); }
.hero-core__list { display: grid; gap: 1px; background: rgba(255, 255, 255, .1); border-radius: var(--radius); overflow: hidden; }
.hero-core__row { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 12px; padding: 13px 14px; background: rgba(16, 27, 69, .42); }
.hero-core__no { font-family: var(--font-num); font-size: 12px; color: var(--gold-400); letter-spacing: .06em; }
.hero-core__city { font-size: 14.5px; font-weight: 600; color: #fff; }
.hero-core__city small { display: block; font-weight: 400; font-size: 12px; color: rgba(255, 255, 255, .5); letter-spacing: .02em; margin-top: 1px; }
.hero-core__role { font-size: 12.5px; color: rgba(255, 255, 255, .62); text-align: right; }
.hero-core__core { display: flex; align-items: center; gap: 8px; margin-top: 16px; font-size: 12.5px; color: rgba(255, 255, 255, .55); }
.hero-core__core i { width: 6px; height: 6px; border-radius: 50%; background: var(--gold-500); }

/* 数据条 */
.stat-strip {
  position: relative; z-index: 2;
  margin-top: clamp(44px, 5.5vw, 76px);
  background: rgba(255, 255, 255, .06);
  border-top: 1px solid rgba(255, 255, 255, .14);
}
.stat-strip__grid { display: grid; grid-template-columns: repeat(5, 1fr); }
.stat-strip__item { padding: 26px 8px; text-align: center; border-left: 1px solid rgba(255, 255, 255, .1); }
.stat-strip__item:first-child { border-left: 0; }
.stat-strip__num { font-family: var(--font-num); font-size: clamp(26px, 3.1vw, 40px); font-weight: 700; color: #fff; letter-spacing: -.02em; line-height: 1.1; }
.stat-strip__num span { color: var(--gold-400); }
.stat-strip__label { margin-top: 8px; font-size: 13.5px; color: rgba(255, 255, 255, .62); letter-spacing: .03em; }

/* ---------------------------------------------------------------- 通用卡片 */
.grid { display: grid; gap: var(--gap); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }

.card {
  background: var(--paper); border: 1px solid var(--ink-200); border-radius: var(--radius);
  padding: clamp(22px, 2.4vw, 30px);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.card--hover:hover { transform: translateY(-4px); box-shadow: var(--sh-md); border-color: var(--brand-200); }
.card__icon {
  width: 52px; height: 52px; display: grid; place-items: center; margin-bottom: 20px;
  border-radius: 14px; background: var(--brand-50); color: var(--brand-600);
  border: 1px solid var(--brand-100);
}
.card__icon .ico { width: 26px; height: 26px; }
.card__title { font-size: 19px; margin-bottom: 10px; }
.card__text { font-size: 15px; color: var(--ink-600); line-height: 1.9; }
.card__no {
  font-family: var(--font-num); font-size: 13px; letter-spacing: .14em; color: var(--gold-600);
  margin-bottom: 12px; display: block;
}

/* 标签 */
.chips { display: flex; flex-wrap: wrap; gap: 9px; }

/* 新闻页「筛选 + 搜索」行内的搜索表单
   注意：全局 .input 为 width:100%，若直接放进 flex 行会把整行占满、
   把「搜索」按钮挤到下一行，故此处重设为可伸缩宽度。 */
.news-search { display: flex; align-items: center; gap: 9px; }
.news-search .input { width: auto; flex: 1 1 200px; min-width: 0; }
.news-search .btn { flex: 0 0 auto; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 13px; border-radius: 999px; font-size: 13.5px;
  background: var(--brand-50); color: var(--brand-700); border: 1px solid var(--brand-100);
}
.chip--gold { background: var(--gold-100); color: var(--gold-700); border-color: var(--gold-200); }
.chip--plain { background: var(--paper-3); color: var(--ink-600); border-color: var(--ink-200); }
.chip--sm { padding: 4px 10px; font-size: 12.5px; }

/* 要点列表 */
.tick { display: grid; gap: 12px; }
.tick li { display: flex; gap: 11px; align-items: flex-start; font-size: 15px; color: var(--ink-600); line-height: 1.8; }
.tick .ico { width: 18px; height: 18px; margin-top: 5px; color: var(--brand-500); flex: 0 0 auto; }

/* ---------------------------------------------------------------- 业务板块 */
.biz { display: grid; gap: var(--gap); }
.biz-card {
  position: relative; overflow: hidden;
  background: var(--paper); border: 1px solid var(--ink-200); border-radius: var(--radius-lg);
  padding: clamp(24px, 2.8vw, 36px);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.biz-card::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 4px;
  background: linear-gradient(180deg, var(--brand-600), var(--brand-400));
  transform: scaleY(0); transform-origin: top; transition: transform .4s var(--ease);
}
.biz-card:hover { transform: translateY(-4px); box-shadow: var(--sh-md); border-color: var(--brand-200); }
.biz-card:hover::before { transform: scaleY(1); }
.biz-card__grid { display: grid; grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr); gap: clamp(20px, 3vw, 44px); align-items: start; }
.biz-card__no { font-family: var(--font-num); font-size: 40px; font-weight: 700; color: var(--brand-100); line-height: 1; letter-spacing: -.03em; }
.biz-card__name { font-size: clamp(21px, 2.1vw, 27px); margin-top: 6px; }
.biz-card__en { display: block; margin-top: 4px; font-size: 11px; letter-spacing: .16em; color: var(--ink-400); text-transform: uppercase; }
.biz-card__intro { font-size: 15px; color: var(--ink-600); line-height: 1.95; margin-bottom: 16px; }
.biz-card__icon { color: var(--brand-500); width: 30px; height: 30px; margin-bottom: 12px; }

/* ---------------------------------------------------------------- 一核三轴 */
.core-diagram { position: relative; }
.core-figure {
  position: relative; padding: clamp(20px, 3vw, 40px);
  background: linear-gradient(160deg, var(--brand-800), var(--brand-700) 60%, var(--brand-600));
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: 0 30px 70px rgba(16, 27, 69, .28);
}
.core-figure__grid { position: absolute; inset: 0; opacity: .5;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 46px 46px; pointer-events: none; }
.core-figure__inner { position: relative; z-index: 1; }

.core-schematic { width: 100%; height: auto; display: block; }
.core-schematic text { font-family: var(--font-sans); }

.core-legend { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 22px; }
.core-legend__item {
  padding: 13px 15px; border-radius: var(--radius); text-align: left;
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .14);
  color: #fff; transition: background .25s var(--ease), transform .25s var(--ease);
}
.core-legend__item.is-core { background: linear-gradient(120deg, var(--gold-500), var(--gold-400)); border-color: transparent; color: #3A2B08; }
.core-legend__item:hover { transform: translateY(-3px); background: rgba(255, 255, 255, .13); }
.core-legend__item.is-core:hover { background: linear-gradient(120deg, var(--gold-400), var(--gold-500)); }
.core-legend__city { font-size: 15px; font-weight: 700; letter-spacing: .02em; }
.core-legend__role { font-size: 12.5px; opacity: .78; margin-top: 2px; }

.core-map { margin-top: 22px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--brand-200); }
.core-map #tmap, .core-map .core-map__canvas { width: 100%; height: 420px; background: var(--paper-3); }
.core-map__fallback { padding: 22px; font-size: 14px; color: var(--ink-500); background: var(--paper-2); line-height: 1.9; }

/* 区域详情 */
.region {
  display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(20px, 3vw, 42px);
  padding: clamp(24px, 3vw, 38px); border: 1px solid var(--ink-200); border-radius: var(--radius-lg);
  background: var(--paper); transition: box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.region:hover { box-shadow: var(--sh-md); border-color: var(--brand-200); }
.region__aside { display: flex; gap: 16px; align-items: flex-start; }
.region__icon { width: 54px; height: 54px; border-radius: 15px; background: var(--brand-600); color: #fff; display: grid; place-items: center; flex: 0 0 auto; }
.region__icon .ico { width: 27px; height: 27px; }
.region__city { font-size: 22px; }
.region__role { font-size: 13.5px; color: var(--gold-600); font-weight: 600; letter-spacing: .03em; margin-top: 3px; }
.region__pos { margin-top: 16px; font-size: 14px; color: var(--ink-500); line-height: 1.85; }
.region__pos b { color: var(--ink-700); font-weight: 600; }
.region__desc { font-size: 15px; color: var(--ink-600); line-height: 1.95; margin-bottom: 18px; }

/* ---------------------------------------------------------------- 时间轴 */
.timeline { position: relative; display: grid; gap: 0; }
.timeline__item { position: relative; display: grid; grid-template-columns: 116px 1fr; gap: clamp(18px, 2.6vw, 40px); padding-bottom: 40px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__rail { position: relative; display: flex; flex-direction: column; align-items: center; }
.timeline__dot {
  width: 15px; height: 15px; border-radius: 50%; background: var(--paper);
  border: 3px solid var(--brand-500); margin-top: 7px; z-index: 1; flex: 0 0 auto;
  box-shadow: 0 0 0 5px var(--brand-50);
}
.timeline__line { flex: 1; width: 2px; background: linear-gradient(180deg, var(--brand-200), rgba(226,229,235,.25)); margin-top: 6px; }
.timeline__item:last-child .timeline__line { display: none; }
.timeline__year { font-family: var(--font-num); font-size: clamp(24px, 2.6vw, 32px); font-weight: 700; color: var(--brand-600); line-height: 1.1; letter-spacing: -.02em; }
.timeline__head { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 10px; }
.timeline__title { font-size: 20px; }
.timeline__tag { font-size: 12.5px; padding: 3px 11px; border-radius: 999px; background: var(--gold-100); color: var(--gold-700); border: 1px solid var(--gold-200); }
.timeline__body { font-size: 15px; color: var(--ink-600); line-height: 1.95; }

/* ---------------------------------------------------------------- 客户与资源 */
.logo-wall { display: grid; grid-template-columns: repeat(auto-fill, minmax(148px, 1fr)); gap: 12px; }
.logo-wall__item {
  display: grid; place-items: center; min-height: 74px; padding: 12px;
  background: var(--paper); border: 1px solid var(--ink-200); border-radius: var(--radius);
  font-size: 14.5px; font-weight: 600; color: var(--ink-700); letter-spacing: .01em; text-align: center;
  transition: transform .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease), box-shadow .25s var(--ease);
}
.logo-wall__item:hover { transform: translateY(-3px); border-color: var(--brand-300); color: var(--brand-700); box-shadow: var(--sh-sm); }
.logo-wall__item--gov { color: var(--brand-700); background: linear-gradient(180deg, #fff, var(--brand-50)); }

.cred-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--gap); }
.cred {
  padding: 26px 22px; border-radius: var(--radius); text-align: center;
  background: linear-gradient(170deg, var(--brand-800), var(--brand-600));
  color: #fff; box-shadow: var(--sh-sm);
}
.cred .ico { width: 30px; height: 30px; margin: 0 auto 14px; color: var(--gold-400); }
.cred__name { font-size: 15.5px; font-weight: 700; line-height: 1.55; color: #fff; }
.cred__org { margin-top: 8px; font-size: 12px; color: rgba(255, 255, 255, .58); letter-spacing: .04em; }

/* ---------------------------------------------------------------- 企业文化 */
.culture-poem {
  position: relative; padding: clamp(34px, 5vw, 62px); border-radius: var(--radius-lg); text-align: center;
  background: linear-gradient(155deg, var(--brand-900), var(--brand-700));
  color: #fff; overflow: hidden;
}
.culture-poem .ico { width: 40px; height: 40px; margin: 0 auto 22px; color: var(--gold-500); opacity: .85; }
.culture-poem__title { font-size: clamp(20px, 2.2vw, 26px); color: #fff; letter-spacing: .08em; margin-bottom: 26px; }
.culture-poem__lines p { font-size: clamp(15.5px, 1.5vw, 19px); line-height: 2.3; color: rgba(255, 255, 255, .87); letter-spacing: .05em; }

.conduct { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--gap); }
.conduct__item { padding: 26px 22px; border: 1px solid var(--ink-200); border-radius: var(--radius); background: var(--paper); border-top: 3px solid var(--gold-500); }
.conduct__to { font-size: 13px; letter-spacing: .16em; color: var(--ink-400); }
.conduct__rule { margin-top: 10px; font-size: 17px; font-weight: 700; color: var(--ink-900); line-height: 1.6; }

.motto-band { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--brand-200); border-radius: var(--radius); overflow: hidden; }
.motto-band__item { padding: 30px 24px; background: var(--paper); text-align: center; font-size: clamp(15px, 1.4vw, 18px); font-weight: 600; color: var(--brand-700); letter-spacing: .05em; }

/* ---------------------------------------------------------------- 新闻 */
.news-list { display: grid; gap: 1px; background: var(--ink-200); border: 1px solid var(--ink-200); border-radius: var(--radius); overflow: hidden; }
.news-row { display: grid; grid-template-columns: 118px 1fr auto; gap: clamp(16px, 2.4vw, 32px); align-items: center; padding: 22px clamp(18px, 2.4vw, 30px); background: var(--paper); transition: background .25s var(--ease); }
.news-row:hover { background: var(--brand-50); }
.news-row__date { font-family: var(--font-num); color: var(--ink-400); font-size: 14px; letter-spacing: .04em; }
.news-row__date b { display: block; font-size: 22px; color: var(--brand-600); line-height: 1.15; }
.news-row__title { font-size: 17px; font-weight: 600; color: var(--ink-900); line-height: 1.6; }
.news-row:hover .news-row__title { color: var(--brand-600); }
.news-row__desc { margin-top: 6px; font-size: 14px; color: var(--ink-500); line-height: 1.8; }
.news-row__go { color: var(--ink-300); transition: transform .25s var(--ease), color .25s var(--ease); }
.news-row:hover .news-row__go { color: var(--brand-500); transform: translateX(4px); }

.news-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap); }
.news-card { display: flex; flex-direction: column; background: var(--paper); border: 1px solid var(--ink-200); border-radius: var(--radius); overflow: hidden; transition: transform .3s var(--ease), box-shadow .3s var(--ease); }
.news-card:hover { transform: translateY(-4px); box-shadow: var(--sh-md); }
.news-card__thumb { aspect-ratio: 16 / 10; background: linear-gradient(140deg, var(--brand-700), var(--brand-500)); position: relative; overflow: hidden; }
.news-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-card__thumb--empty::after {
  content: "ZTECH"; position: absolute; inset: 0; display: grid; place-items: center;
  font-size: 24px; font-weight: 700; letter-spacing: .3em; color: rgba(255, 255, 255, .3);
}
.news-card__body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.news-card__meta { display: flex; align-items: center; gap: 12px; font-size: 12.5px; color: var(--ink-400); margin-bottom: 12px; }
.news-card__title { font-size: 17px; line-height: 1.6; margin-bottom: 10px; }
.news-card:hover .news-card__title { color: var(--brand-600); }
.news-card__desc { font-size: 14px; color: var(--ink-500); line-height: 1.85; flex: 1; }
.news-card__more { margin-top: 16px; font-size: 13.5px; font-weight: 600; color: var(--brand-600); display: inline-flex; align-items: center; gap: 6px; }

.article { max-width: 860px; margin-inline: auto; }
.article__head { padding-bottom: 26px; border-bottom: 1px solid var(--ink-200); margin-bottom: 34px; }
.article__title { font-size: clamp(23px, 3vw, 34px); line-height: 1.45; }
.article__meta { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 18px; font-size: 13.5px; color: var(--ink-500); }
.article__meta span { display: inline-flex; align-items: center; gap: 7px; }
.article__cover { border-radius: var(--radius); overflow: hidden; margin-bottom: 34px; }
.article__body { font-size: 16.5px; line-height: 2.05; color: var(--ink-700); }
.article__body p { margin: 0 0 1.3em; }
.article__body h2 { font-size: 22px; margin: 1.8em 0 .8em; }
.article__body h3 { font-size: 19px; margin: 1.6em 0 .7em; }
.article__body img { border-radius: var(--radius-sm); margin: 1.4em auto; }
.article__body ul, .article__body ol { margin: 1em 0 1.3em; padding-left: 1.4em; list-style: revert; }
.article__body li { margin-bottom: .5em; }
.article__body blockquote { margin: 1.4em 0; padding: 14px 22px; border-left: 3px solid var(--gold-500); background: var(--paper-2); color: var(--ink-600); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.article__body a { text-decoration: underline; text-underline-offset: 3px; }
.article__foot { margin-top: 46px; padding-top: 28px; border-top: 1px solid var(--ink-200); display: flex; justify-content: space-between; align-items: center; gap: 18px; flex-wrap: wrap; }

/* ---------------------------------------------------------------- 招聘 */
.job-card { display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: center; padding: clamp(22px, 2.4vw, 30px); border: 1px solid var(--ink-200); border-radius: var(--radius); background: var(--paper); transition: box-shadow .3s var(--ease), border-color .3s var(--ease); }
.job-card:hover { box-shadow: var(--sh-md); border-color: var(--brand-200); }
.job-card__title { font-size: 18.5px; }
.job-card__meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.job-card__desc { margin-top: 12px; font-size: 14px; color: var(--ink-500); line-height: 1.85; }
.job-card__side { display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }
.job-card__salary { font-family: var(--font-num); font-size: 20px; font-weight: 700; color: var(--gold-600); white-space: nowrap; }

/* ---------------------------------------------------------------- 表单 */
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 600; color: var(--ink-800); }
.field label .req { color: var(--err); margin-left: 3px; }
.field .hint { font-size: 12.5px; color: var(--ink-400); }
.input, .textarea, .select {
  width: 100%; padding: 12px 15px; background: var(--paper);
  border: 1px solid var(--ink-200); border-radius: var(--radius-sm);
  font-size: 15px; color: var(--ink-900); transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.input:focus, .textarea:focus, .select:focus { outline: none; border-color: var(--brand-500); box-shadow: 0 0 0 3px rgba(53, 80, 156, .12); }
.textarea { min-height: 140px; resize: vertical; line-height: 1.8; }
.input::placeholder, .textarea::placeholder { color: var(--ink-400); }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%23717887' stroke-width='1.6' stroke-linecap='round' d='M1 1.5 6 6.5l5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 15px center; padding-right: 38px; }

.form-note { margin-top: 18px; font-size: 13px; color: var(--ink-400); line-height: 1.8; }
.form-actions { margin-top: 26px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

.alert { padding: 14px 18px; border-radius: var(--radius-sm); font-size: 14.5px; line-height: 1.8; border: 1px solid; margin-bottom: 22px; }
.alert--ok { background: #F0F8F3; border-color: #BEE0CB; color: #17663A; }
.alert--err { background: #FDF3F2; border-color: #EEC7C2; color: #8E2B20; }
.alert--warn { background: #FDF8EE; border-color: #EEDFBE; color: #7C5713; }
.alert ul { list-style: disc; padding-left: 1.2em; }
.alert--ok .ico, .alert--err .ico { vertical-align: -3px; margin-right: 6px; }

.contact-grid { display: grid; grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr); gap: clamp(24px, 3.4vw, 52px); align-items: start; }
/* 企业简介版式：正文 + 工商信息侧栏（桌面 1.25 : .75）
   ⚠️ 早期用内联 style 硬写栅格，内联优先级高于媒体查询，导致移动端单列失效、
     侧栏被压到 122px 后撑出 50px 横向滚动。必须用类名承载，才能被响应式覆盖。
   侧栏键值表允许长标识（统一社会信用代码）内部断行，避免撑破卡片。 */
.contact-grid--profile { grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); }
.contact-grid--profile > .card { min-width: 0; }
.contact-grid--profile table { width: 100%; table-layout: fixed; }
.contact-grid--profile td { word-break: break-word; overflow-wrap: anywhere; }
.contact-list { display: grid; gap: 18px; }
.contact-list__item { display: flex; gap: 14px; align-items: flex-start; }
.contact-list__icon { width: 42px; height: 42px; border-radius: 12px; background: var(--brand-50); color: var(--brand-600); display: grid; place-items: center; flex: 0 0 auto; }
.contact-list__label { font-size: 12.5px; letter-spacing: .1em; color: var(--ink-400); }
.contact-list__value { font-size: 15.5px; color: var(--ink-800); line-height: 1.8; word-break: break-all; }

/* ---------------------------------------------------------------- 面包屑 / 分页 */
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 13.5px; color: rgba(255, 255, 255, .6); }
.breadcrumb a { color: rgba(255, 255, 255, .82); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb__sep { opacity: .45; }

.pager { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 8px; margin-top: 46px; }
.pager__btn, .pager__num {
  min-width: 40px; padding: 9px 14px; border-radius: var(--radius-sm); text-align: center;
  border: 1px solid var(--ink-200); background: var(--paper); color: var(--ink-700); font-size: 14px;
  transition: all .2s var(--ease);
}
.pager__num.is-active { background: var(--brand-600); border-color: var(--brand-600); color: #fff; font-weight: 600; }
.pager__btn:hover, .pager__num:hover { border-color: var(--brand-400); color: var(--brand-600); }
.pager__num.is-active:hover { color: #fff; }
.pager__btn.is-disabled { color: var(--ink-300); background: var(--paper-2); cursor: not-allowed; }
.pager__info { margin-left: 8px; font-size: 13px; color: var(--ink-400); }

/* ---------------------------------------------------------------- 页头（内页） */
.page-hero {
  position: relative; overflow: hidden; color: #fff;
  background: linear-gradient(150deg, var(--brand-900), var(--brand-800) 55%, var(--brand-700));
  padding-block: clamp(52px, 6.6vw, 92px);
}
.page-hero__inner { position: relative; z-index: 2; }
.page-hero__title { color: #fff; font-size: clamp(28px, 4vw, 46px); letter-spacing: -.02em; margin-top: 14px; }
.page-hero__title em { font-style: normal; color: var(--gold-400); }
.page-hero__sub { margin-top: 16px; max-width: 46em; font-size: clamp(14.5px, 1.3vw, 16.5px); line-height: 1.95; color: rgba(255, 255, 255, .7); }
.page-hero--compact { padding-block: clamp(34px, 4.2vw, 58px); }

/* ---------------------------------------------------------------- CTA / Footer */
.cta-band {
  position: relative; overflow: hidden; color: #fff;
  background: linear-gradient(120deg, var(--brand-800) 0%, var(--brand-600) 58%, var(--brand-500) 100%);
}
.cta-band::before {
  content: ""; position: absolute; right: -80px; top: -80px; width: 340px; height: 340px; border-radius: 50%;
  background: radial-gradient(circle, rgba(198, 161, 91, .3), transparent 66%);
}
.cta-band__inner {
  position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between;
  gap: 28px; flex-wrap: wrap; padding-block: clamp(38px, 4.6vw, 60px);
}
.cta-band__title { font-size: clamp(21px, 2.5vw, 30px); color: #fff; letter-spacing: -.01em; }
.cta-band__sub { margin-top: 12px; font-size: 14.5px; color: rgba(255, 255, 255, .72); letter-spacing: .02em; }
.cta-band__actions { display: flex; gap: 14px; flex-wrap: wrap; }

.site-footer { background: var(--brand-900); color: rgba(255, 255, 255, .6); font-size: 14px; padding-top: clamp(48px, 6vw, 76px); }
.site-footer__main { display: grid; grid-template-columns: minmax(0, 1.35fr) repeat(2, minmax(0, .72fr)) minmax(0, 1.2fr); gap: clamp(26px, 3.4vw, 52px); padding-bottom: 46px; }
.site-footer__logo { height: 40px; width: auto; filter: brightness(0) invert(1); opacity: .92; }
.site-footer__slogan { margin-top: 20px; font-size: 16px; font-weight: 600; color: #fff; letter-spacing: .03em; }
.site-footer__tagline { margin-top: 8px; font-size: 12.5px; color: rgba(255, 255, 255, .42); letter-spacing: .08em; }
.site-footer__chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.site-footer__chips li { padding: 4px 11px; border-radius: 999px; background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .12); font-size: 12.5px; color: rgba(255, 255, 255, .7); }
.site-footer__title { font-size: 14.5px; color: #fff; letter-spacing: .1em; margin-bottom: 20px; font-weight: 600; }
.site-footer__links { display: grid; gap: 11px; }
.site-footer__links a { color: rgba(255, 255, 255, .6); }
.site-footer__links a:hover { color: var(--gold-400); }
.site-footer__contact { display: grid; gap: 14px; }
.site-footer__contact li { display: flex; gap: 10px; align-items: flex-start; line-height: 1.8; }
.site-footer__contact .ico { margin-top: 5px; color: var(--gold-500); width: 16px; height: 16px; }
.site-footer__contact a { color: rgba(255, 255, 255, .72); }
.site-footer__contact a:hover { color: var(--gold-400); }
.site-footer__legal {
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  padding-block: 22px; border-top: 1px solid rgba(255, 255, 255, .1); font-size: 13px; color: rgba(255, 255, 255, .45);
}
.site-footer__legal a { color: rgba(255, 255, 255, .55); }
.site-footer__legal a:hover { color: var(--gold-400); }
.site-footer__copy .sep, .site-footer__meta .sep { margin-inline: 8px; opacity: .4; }

.to-top {
  position: fixed; right: clamp(14px, 2.4vw, 30px); bottom: clamp(78px, 8vw, 34px); z-index: 180;
  width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--brand-200); background: var(--paper);
  color: var(--brand-600); display: grid; place-items: center; box-shadow: var(--sh-md);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s;
}
.to-top .ico { transform: rotate(90deg); width: 20px; height: 20px; }
.to-top.is-on { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--brand-600); color: #fff; border-color: var(--brand-600); }

.mobile-bar {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 185;
  background: rgba(255, 255, 255, .96); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--ink-200); padding-bottom: env(safe-area-inset-bottom);
}
.mobile-bar__item {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 9px 4px; font-size: 11px; color: var(--ink-500);
}
.mobile-bar__item .ico { width: 21px; height: 21px; }
.mobile-bar__item--cta { color: var(--brand-600); }

/* 展开收起 */
details > summary { list-style: none; }
details > summary::-webkit-details-marker { display: none; }
details > summary .ico { transition: transform .25s var(--ease); }
details[open] > summary .ico { transform: rotate(45deg); }

/* ---------------------------------------------------------------- 动效 */
/* 滚动入场动效
   ⚠️ 隐藏规则必须挂在 html.js 下（该 class 由页头内联脚本添加）。
     若直接写 [data-reveal]{opacity:0}，一旦 JS 被禁用/加载失败，
     [data-reveal] 会永久停在 opacity:0 —— 首屏以下正文整片空白。 */
html.js [data-reveal] { opacity: 0; transform: translateY(22px); }
html.js [data-reveal].is-in { opacity: 1; transform: none; transition: opacity .7s var(--ease), transform .7s var(--ease); }
/* 兜底：主脚本 2.5s 内未完成初始化（加载失败 / 执行异常）时无条件显示 */
html.reveal-fallback [data-reveal] { opacity: 1 !important; transform: none !important; }

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

/* 数字滚动 */
.count-up { font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------- 打印 */
@media print {
  .topbar, .site-header, .mobile-bar, .to-top, .cta-band, .nav-mask { display: none !important; }
  body { color: #000; }
  /* 打印时不执行滚动动画，必须强制显示入场元素，否则打印出来是空白页 */
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .page-hero { background: #fff !important; color: #000; padding-block: 20px; }
  .page-hero__title { color: #000; }
}

/* ================================================================ 响应式 */
/* 1400px 以下隐藏页头右侧 CTA，只保留导航
   （导航内边距已在基础样式中收紧，此处只需处理 CTA 显隐；
     原先「导航 + CTA」在 1280px 处溢出 67px 并产生横向滚动条） */
@media (max-width: 1400px) {
  .site-header__cta { display: none; }
}

/* 平板 */
@media (max-width: 1024px) {
  :root { --header-h: 66px; }
  .hero__inner { grid-template-columns: 1fr; gap: 38px; }
  .hero-core { max-width: 560px; }
  .grid--4, .cred-grid, .conduct { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--5 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .news-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat-strip__grid { grid-template-columns: repeat(3, 1fr); }
  .stat-strip__item:nth-child(4) { border-left: 0; }
  .site-footer__main { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer__brand { grid-column: 1 / -1; }
  .biz-card__grid { grid-template-columns: 1fr; }
  .region { grid-template-columns: 1fr; }
  .contact-grid, .contact-grid--profile { grid-template-columns: 1fr; }
  .core-legend { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* 平板 / 移动端：抽屉导航
   ⚠️ 阈值为 1120px（而非 900px）：横排导航在 1024px 平板宽度下已溢出，故平板横屏
   也纳入抽屉模式。
   ⚠️ 关键修复：backdrop-filter 会让 .site-header 成为 position:fixed 子元素的包含块，
   使 .nav 相对「页头」而非「视口」定位 —— 实测导航被整体推出视口外 340px，
   且被 body 的 overflow-x:hidden 掩盖成「无滚动条但菜单错位」。抽屉模式下必须
   去掉模糊，让 fixed 回到视口定位。 */
@media (max-width: 1120px) {
  .site-header {
    background: var(--paper);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  /* ⚠️ 汉堡按钮必须显式抬到抽屉之上：.nav 是 .site-header 的后代，
     在页头这个层叠上下文内 .nav 的 z-index:195 会盖住 z-index:auto 的
     .site-header__actions（内含汉堡），导致抽屉展开后汉堡被遮成「隐形按钮」
     —— 本应由 aria-expanded=true 变成的 X 关闭图标完全看不见。
     置为 200 后汉堡稳定在抽屉之上。 */
  .burger { display: flex; position: relative; z-index: 200; }

  /* 抽屉模式下 .nav 转为 fixed 脱离文档流，页头里就再没有带 margin-left:auto
     的元素把右侧按钮顶到边上，汉堡会挤在 logo 右侧。这里补上。 */
  .site-header__actions { margin-left: auto; }
  .topbar__hide-sm, .topbar__en { display: none; }
  .topbar { font-size: 12.5px; }
  .topbar__meta { gap: 14px; }

  .nav {
    position: fixed; top: 0; right: 0; z-index: 195;
    width: min(84vw, 340px); height: 100vh; height: 100dvh;
    /* 顶部内边距要越过年信息条(~32px) + 页头(66~70px)、并给汉堡按钮留出空间，
       否则第一个导航项会压在页头底下 */
    margin-left: 0; padding: 106px 24px 32px;
    background: var(--paper); box-shadow: -20px 0 60px rgba(16, 27, 69, .18);
    overflow-y: auto; overscroll-behavior: contain;
    transform: translateX(100%); transition: transform .34s var(--ease);
  }
  .nav.is-open { transform: none; }
  .nav__list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav__link { padding: 14px 14px; font-size: 16.5px; border-radius: var(--radius-sm); }
  .nav__link::after { display: none; }
  .nav__link.is-active { background: var(--brand-50); }
  .nav__foot { display: block; margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--ink-200); }
  .nav__foot-tip { margin-top: 14px; font-size: 12.5px; color: var(--ink-400); text-align: center; letter-spacing: .06em; }

  body.nav-locked { overflow: hidden; }
}

/* 手机：底部固定操作条（仅真正的窄屏需要，平板不加） */
@media (max-width: 900px) {
  .mobile-bar { display: flex; }
  .site-footer { padding-bottom: 68px; }
}

/* 手机 */
@media (max-width: 720px) {
  body { font-size: 15.5px; }
  .grid--2, .grid--3, .grid--4, .grid--5,
  .cred-grid, .conduct, .news-cards, .form-grid { grid-template-columns: 1fr; }
  .motto-band { grid-template-columns: 1fr; }
  .stat-strip__grid { grid-template-columns: repeat(2, 1fr); }
  .stat-strip__item { border-left: 0; border-top: 1px solid rgba(255,255,255,.1); padding: 18px 6px; }
  .stat-strip__item:nth-child(-n+2) { border-top: 0; }
  .site-footer__main { grid-template-columns: 1fr; }
  .hero__actions .btn, .cta-band__actions .btn { width: 100%; }
  .cta-band__actions { width: 100%; }
  .news-row { grid-template-columns: 1fr; gap: 10px; }
  .news-row__date { display: flex; align-items: baseline; gap: 8px; }
  .news-row__date b { font-size: 17px; }
  .news-row__go { display: none; }
  .news-search { width: 100%; flex-wrap: wrap; }
  .news-search .input { flex: 1 1 100%; }
  .news-search .btn { flex: 1 1 auto; }
  .timeline__item { grid-template-columns: 1fr; gap: 8px; padding-left: 26px; }
  .timeline__rail { position: absolute; left: 0; top: 0; bottom: 0; align-items: center; }
  .timeline__dot { margin-top: 6px; }
  .job-card { grid-template-columns: 1fr; }
  .job-card__side { flex-direction: row; align-items: center; justify-content: space-between; width: 100%; }
  .logo-wall { grid-template-columns: repeat(auto-fill, minmax(128px, 1fr)); gap: 9px; }
  .article__foot { flex-direction: column; align-items: flex-start; }
  .core-legend { grid-template-columns: 1fr; }
  .page-hero--compact { padding-block: 26px; }
  .to-top { display: none; }
}

@media (max-width: 420px) {
  .logo-wall { grid-template-columns: repeat(2, 1fr); }
  .brand__logo { height: 34px; }
}