/* ============================================================
   广州电科信息科技有限公司 官网 · 设计系统
   主色取自品牌 LOGO 蓝色系；全站仅系统字体，零外部请求
   ============================================================ */

:root {
  /* 品牌色 */
  --brand: #0a5bd3;
  --brand-600: #0e6ae8;
  --brand-700: #0a4fb5;
  --brand-900: #073a86;
  --brand-soft: #eef4fe;
  --brand-soft-2: #e2ecfd;

  /* 中性色 */
  --ink: #141d2b;
  --ink-2: #33445c;
  --muted: #61728a;
  --muted-2: #8b9aae;
  --line: #e3e9f1;
  --line-2: #eef2f7;
  --bg: #ffffff;
  --bg-soft: #f6f9fd;
  --bg-soft-2: #eff4fb;

  /* 辅助色 */
  --accent: #ff7a2f;
  --accent-soft: #fff2e8;
  --success: #12a06a;

  /* 尺寸 */
  --max: 1200px;
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;
  --shadow-1: 0 1px 2px rgba(16, 32, 56, .05), 0 4px 14px rgba(16, 32, 56, .05);
  --shadow-2: 0 6px 16px rgba(16, 32, 56, .08), 0 18px 44px rgba(16, 32, 56, .08);
  --header-h: 72px;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-700); }
h1, h2, h3, h4 {
  color: var(--ink);
  line-height: 1.35;
  margin: 0 0 .6em;
  font-weight: 700;
  letter-spacing: -.01em;
}
h1 { font-size: clamp(28px, 4.4vw, 46px); }
h2 { font-size: clamp(24px, 3.2vw, 34px); }
h3 { font-size: clamp(18px, 2vw, 21px); }
h4 { font-size: 17px; }
p { margin: 0 0 1em; }
ul { margin: 0 0 1em; padding-left: 1.2em; }
li { margin-bottom: .35em; }

/* 焦点可见性（无障碍） */
a:focus-visible, button:focus-visible, input:focus-visible,
textarea:focus-visible, select:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid #7fb2ff;
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--brand); color: #fff; padding: 10px 18px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- 布局 ---------- */
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.section { padding: 76px 0; }
.section--soft { background: var(--bg-soft); }
.section--tight { padding: 52px 0; }

.section-head { max-width: 760px; margin: 0 auto 46px; text-align: center; }
.section-head h2 { margin-bottom: 14px; }
.section-head p { color: var(--muted); font-size: 17px; margin: 0; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .12em;
  color: var(--brand); background: var(--brand-soft);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 16px;
}

/* ---------- 顶部导航 ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header__inner {
  height: var(--header-h);
  display: flex; align-items: center; gap: 24px;
  max-width: var(--max); margin: 0 auto; padding: 0 24px;
}
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand img { width: 40px; height: 40px; border-radius: 9px; object-fit: contain; }
.brand__text { display: flex; flex-direction: column; line-height: 1.2; }
.brand__name { font-size: 17px; font-weight: 800; color: var(--ink); letter-spacing: .01em; }
.brand__sub { font-size: 11.5px; color: var(--muted-2); letter-spacing: .04em; }

.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav__list > li { margin: 0; position: relative; }
.nav__list a {
  display: block; padding: 9px 13px; border-radius: 8px;
  font-size: 15px; font-weight: 600; color: var(--ink-2); white-space: nowrap;
}
.nav__list a:hover { color: var(--brand); background: var(--brand-soft); }
.nav__list a[aria-current="page"] { color: var(--brand); background: var(--brand-soft); }

.nav-toggle {
  display: none; margin-left: auto; width: 44px; height: 44px;
  border: 1px solid var(--line); border-radius: 10px; background: #fff; cursor: pointer;
}
.nav-toggle span {
  display: block; width: 20px; height: 2px; background: var(--ink);
  margin: 4px auto; border-radius: 2px; transition: .25s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: 999px; font-size: 15px; font-weight: 700;
  border: 1.5px solid transparent; cursor: pointer; transition: .2s; white-space: nowrap;
}
.btn--primary { background: var(--brand); color: #fff; }
.btn--primary:hover { background: var(--brand-700); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-1); }
.btn--ghost { background: #fff; color: var(--brand); border-color: var(--brand-soft-2); }
.btn--ghost:hover { border-color: var(--brand); background: var(--brand-soft); }
.btn--accent { background: var(--accent); color: #fff; }
.btn--accent:hover { background: #ef6a1c; color: #fff; }
.btn--light { background: rgba(255, 255, 255, .14); color: #fff; border-color: rgba(255, 255, 255, .5); }
.btn--light:hover { background: #fff; color: var(--brand); }
.btn--sm { padding: 8px 16px; font-size: 14px; }

.header__cta { flex-shrink: 0; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: linear-gradient(135deg, #08409b 0%, #0a5bd3 48%, #1a7ce8 100%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(1000px 420px at 82% -10%, rgba(255, 255, 255, .16), transparent 60%),
    radial-gradient(700px 380px at 8% 110%, rgba(10, 130, 255, .35), transparent 62%);
}
.hero__inner { position: relative; z-index: 1; padding: 82px 0 72px; max-width: 780px; }
.hero h1 { color: #fff; margin-bottom: 18px; }
.hero__tag {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .08em;
  background: rgba(255, 255, 255, .16); border: 1px solid rgba(255, 255, 255, .28);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 22px;
}
.hero__lead { font-size: clamp(16px, 1.8vw, 19px); color: rgba(255, 255, 255, .9); margin-bottom: 30px; max-width: 640px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 44px; }
.hero__facts { display: flex; flex-wrap: wrap; gap: 12px 30px; list-style: none; margin: 0; padding: 0; }
.hero__facts li {
  margin: 0; font-size: 14.5px; color: rgba(255, 255, 255, .88);
  display: flex; align-items: center; gap: 8px;
}
.hero__facts li::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: #7fd7a8; flex-shrink: 0;
}

/* 数据条 */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--line); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; margin-top: -46px; position: relative; z-index: 2;
  box-shadow: var(--shadow-1);
}
.stats__item { background: #fff; padding: 24px 18px; text-align: center; }
.stats__num { font-size: 32px; font-weight: 800; color: var(--brand); line-height: 1.1; }
.stats__num small { font-size: 16px; font-weight: 700; margin-left: 2px; }
.stats__label { font-size: 13.5px; color: var(--muted); margin-top: 4px; }

/* ---------- 页面头（内页） ---------- */
.pagehead {
  background: linear-gradient(120deg, #f2f7fe 0%, #e8f1fd 100%);
  border-bottom: 1px solid var(--line);
  padding: 58px 0 52px;
}
.pagehead h1 { margin-bottom: 12px; }
.pagehead p { color: var(--muted); font-size: 17px; margin: 0; max-width: 700px; }

/* 面包屑 */
.crumbs { font-size: 13.5px; color: var(--muted); margin-bottom: 16px; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; }
.crumbs li { margin: 0; }
.crumbs li + li::before { content: "/"; margin-right: 8px; color: var(--muted-2); }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--brand); }
.crumbs [aria-current="page"] { color: var(--ink-2); font-weight: 600; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; transition: .22s; height: 100%;
}
.card:hover { border-color: #c5d8f7; box-shadow: var(--shadow-2); transform: translateY(-3px); }
.card__icon {
  width: 50px; height: 50px; border-radius: 13px; background: var(--brand-soft);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.card__icon svg { width: 26px; height: 26px; stroke: var(--brand); fill: none; stroke-width: 1.9; }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15px; margin-bottom: 0; }
.card ul { color: var(--muted); font-size: 14.5px; margin-bottom: 0; }
.card__more {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 16px;
  font-size: 14.5px; font-weight: 700;
}
.card--flat { background: var(--bg-soft); border-color: transparent; }
.card--flat:hover { background: #fff; }

/* 服务卡（带列表） */
.svc {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px;
}
.svc__item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; display: flex; flex-direction: column;
}
.svc__item h3 { display: flex; align-items: center; gap: 12px; }
.svc__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; padding: 0; list-style: none; }
.svc__tags li {
  margin: 0; font-size: 13px; color: var(--ink-2); background: var(--bg-soft);
  border: 1px solid var(--line-2); padding: 4px 11px; border-radius: 999px;
}

/* ---------- 特性列表（为什么选择我们） ---------- */
.feature { display: flex; gap: 18px; align-items: flex-start; }
.feature__num {
  width: 40px; height: 40px; flex-shrink: 0; border-radius: 11px;
  background: var(--brand); color: #fff; font-weight: 800; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
}
.feature h3 { font-size: 17px; margin-bottom: 6px; }
.feature p { color: var(--muted); font-size: 15px; margin: 0; }

/* ---------- 案例 ---------- */
.case {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: .22s; height: 100%; display: flex; flex-direction: column;
}
.case:hover { border-color: #c5d8f7; box-shadow: var(--shadow-2); transform: translateY(-3px); }
.case__top { padding: 22px 24px 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.case__tag {
  font-size: 12.5px; font-weight: 700; color: var(--brand);
  background: var(--brand-soft); padding: 4px 11px; border-radius: 999px;
}
.case__date { font-size: 13px; color: var(--muted-2); }
.case__body { padding: 14px 24px 22px; flex: 1; }
.case__body h3 { font-size: 17.5px; margin-bottom: 12px; }
.case__body p { font-size: 14.5px; color: var(--muted); margin-bottom: 14px; }
.case__meta {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 16px;
  border-top: 1px dashed var(--line); padding-top: 14px; margin: 0; list-style: none;
}
.case__meta div { margin: 0; }
.case__meta dt { font-size: 12.5px; color: var(--muted-2); }
.case__meta dd { margin: 0; font-size: 14px; font-weight: 600; color: var(--ink); }

/* ---------- 时间线 ---------- */
.timeline { position: relative; padding-left: 30px; list-style: none; margin: 0; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px;
  width: 2px; background: var(--brand-soft-2);
}
.timeline li { position: relative; margin-bottom: 26px; }
.timeline li::before {
  content: ""; position: absolute; left: -30px; top: 8px;
  width: 16px; height: 16px; border-radius: 50%;
  background: #fff; border: 3px solid var(--brand);
}
.timeline strong { display: block; color: var(--brand); font-size: 15px; }
.timeline p { margin: 2px 0 0; color: var(--muted); font-size: 15px; }

/* ---------- 资质墙 ---------- */
.honor {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px; text-align: center; height: 100%;
}
.honor__badge {
  width: 54px; height: 54px; margin: 0 auto 14px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-600), var(--brand-900));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 17px;
}
.honor h3 { font-size: 16px; margin-bottom: 6px; }
.honor p { font-size: 14px; color: var(--muted); margin: 0; }

/* ---------- 合作伙伴 / 平台 ---------- */
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.platform {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 20px 18px; text-align: center; font-size: 15px; font-weight: 700; color: var(--ink);
}
.platform span { display: block; font-size: 13px; font-weight: 500; color: var(--muted); margin-top: 4px; }

.brands { display: flex; flex-wrap: wrap; gap: 12px; list-style: none; padding: 0; margin: 0; }
.brands li {
  margin: 0; padding: 10px 20px; border: 1px solid var(--line); border-radius: 999px;
  background: #fff; font-weight: 700; color: var(--ink-2); font-size: 15px;
}

/* ---------- FAQ ---------- */
.faq { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.faq details { border-bottom: 1px solid var(--line-2); }
.faq details:last-child { border-bottom: 0; }
.faq summary {
  cursor: pointer; padding: 18px 24px; font-weight: 700; color: var(--ink);
  font-size: 16px; list-style: none; display: flex; justify-content: space-between; gap: 16px; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--brand); font-size: 22px; font-weight: 600; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { color: var(--brand); }
.faq__answer { padding: 0 24px 20px; color: var(--muted); font-size: 15px; }
.faq__answer p:last-child { margin-bottom: 0; }

/* ---------- CTA 条 ---------- */
.cta {
  background: linear-gradient(120deg, #08409b, #0a5bd3 60%, #1a7ce8);
  color: #fff; padding: 58px 0; text-align: center; position: relative; overflow: hidden;
}
.cta::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(700px 300px at 50% -30%, rgba(255, 255, 255, .18), transparent 65%);
}
.cta > .wrap { position: relative; }
.cta h2 { color: #fff; margin-bottom: 12px; }
.cta p { color: rgba(255, 255, 255, .88); font-size: 17px; margin-bottom: 26px; }
.cta__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.cta__tel { font-size: 26px; font-weight: 800; color: #fff; letter-spacing: .02em; }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: start; }
.info-list { list-style: none; padding: 0; margin: 0 0 24px; }
.info-list li {
  margin: 0 0 14px; display: flex; gap: 14px; align-items: flex-start;
  padding-bottom: 14px; border-bottom: 1px dashed var(--line);
}
.info-list li:last-child { border-bottom: 0; }
.info-list svg { width: 20px; height: 20px; stroke: var(--brand); fill: none; stroke-width: 1.8; flex-shrink: 0; margin-top: 3px; }
.info-list strong { display: block; color: var(--ink); font-size: 14px; }
.info-list span { color: var(--muted); font-size: 15px; }
.mapbox {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--bg-soft);
}
.mapbox iframe { width: 100%; height: 260px; border: 0; display: block; }
.mapbox__note { padding: 14px 18px; font-size: 13.5px; color: var(--muted); }
.mapbox__view {
  display: flex; align-items: center; gap: 14px; padding: 26px 24px;
  background: linear-gradient(120deg, #f2f7fe, #e8f1fd);
  border-bottom: 1px solid var(--line);
}
.mapbox__view svg { flex-shrink: 0; }

/* 表单 */
.form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; box-shadow: var(--shadow-1); }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; font-weight: 700; color: var(--ink); margin-bottom: 7px; }
.field label .req { color: var(--accent); }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 14px; font: inherit; font-size: 15px;
  border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; color: var(--ink);
  transition: .18s;
}
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--muted-2); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(10, 91, 211, .12);
}
.field textarea { min-height: 110px; resize: vertical; }
.field__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form__note { font-size: 13px; color: var(--muted-2); margin-top: 12px; }
.form__msg { display: none; margin-top: 14px; padding: 12px 16px; border-radius: var(--radius-sm); font-size: 14.5px; }
.form__msg--ok { display: block; background: #e8f8f0; color: #0b7a51; border: 1px solid #b6e4cd; }
.form__msg--err { display: block; background: #fdecec; color: #b3261e; border: 1px solid #f6c9c5; }

/* ---------- 表格 ---------- */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table.data { width: 100%; border-collapse: collapse; background: #fff; font-size: 14.5px; min-width: 640px; }
table.data th, table.data td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--line-2); }
table.data thead th { background: var(--bg-soft); color: var(--ink); font-weight: 700; white-space: nowrap; }
table.data tbody tr:last-child td { border-bottom: 0; }
table.data tbody tr:hover { background: #fafcff; }

/* ---------- 页脚 ---------- */
.footer { background: #101a28; color: #a9b7c9; padding: 58px 0 0; font-size: 14.5px; }
.footer a { color: #cfdcea; }
.footer a:hover { color: #fff; }
.footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 36px; padding-bottom: 40px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer ul { list-style: none; margin: 0; padding: 0; }
.footer li { margin-bottom: 9px; }
.footer__brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer__brand img { width: 46px; height: 46px; border-radius: 10px; background: #fff; object-fit: contain; }
.footer__brand b { color: #fff; font-size: 17px; }
.footer__brand span { display: block; font-size: 12.5px; color: #7f90a5; }
.footer__slogan { color: #7f90a5; font-size: 13.5px; margin-top: 14px; }
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); padding: 20px 0 12px;
  display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: space-between; font-size: 13.5px; color: #7f90a5;
}

/* ---------- 后台 ---------- */
.admin { min-height: 100vh; background: var(--bg-soft); padding: 40px 0; }
.admin__card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.admin__login { max-width: 420px; margin: 8vh auto; }
.msg-item { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 18px; margin-bottom: 14px; background: #fff; }
.msg-item__head { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.msg-item__head b { color: var(--ink); }
.msg-item__time { font-size: 13px; color: var(--muted-2); }
.msg-item__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px 20px; font-size: 14px; color: var(--muted); margin-bottom: 10px; }
.msg-item__body { font-size: 14.5px; color: var(--ink-2); background: var(--bg-soft); padding: 12px 14px; border-radius: 8px; white-space: pre-wrap; }
.badge { font-size: 12px; padding: 3px 10px; border-radius: 999px; font-weight: 700; }
.badge--new { background: var(--accent-soft); color: #c9500f; }
.badge--done { background: #eef4fe; color: var(--brand); }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .nav__list a { padding: 9px 10px; font-size: 14.5px; }
  .platforms { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .header__cta { display: none; }
  .nav {
    position: absolute; top: var(--header-h); left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-1); display: none; margin: 0;
  }
  .nav.is-open { display: block; }
  .nav__list { flex-direction: column; align-items: stretch; padding: 10px 16px 18px; gap: 2px; }
  .nav__list a { padding: 12px 10px; border-radius: 8px; }
  .grid--3, .grid--4, .svc, .contact-grid { grid-template-columns: 1fr; }
  .grid--2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); margin-top: -30px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 56px 0; }
  .hero__inner { padding: 56px 0 52px; }
  .field__row { grid-template-columns: 1fr; }
  .msg-item__grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .footer__grid { grid-template-columns: 1fr; }
  .brand__sub { display: none; }
  .hero__actions .btn { width: 100%; }
}

/* ---------- ICP 备案号（管局要求：首页底部中央 + 链接工信部） ---------- */
.footer__icp { text-align: center; padding: 0 0 26px; font-size: 13.5px; color: #7f90a5; }
.footer__icp a { color: #cfdcea; text-decoration: none; }
.footer__icp a:hover { color: #fff; text-decoration: underline; }