/* ==========================================================
   滨州市人工智能协会 官网样式
   纯 CSS，无外部字体/框架依赖；移动优先的响应式断点
   ========================================================== */

:root {
  --brand-950: #061f42;
  --brand-900: #082b57;
  --brand-800: #0b3b74;
  --brand-700: #0e4d96;
  --brand-600: #1264c8;
  --brand-500: #2c7ee6;
  --brand-100: #dcebff;
  --brand-050: #eef5ff;
  --accent: #00b3a4;
  --accent-light: #7ce6dc;
  --gold: #ffb43b;

  --ink: #142337;
  --ink-2: #3d5068;
  --ink-3: #6d7f95;
  --line: #dfe8f3;
  --line-soft: #edf2f9;
  --bg: #ffffff;
  --bg-soft: #f5f9fe;
  --bg-tint: #eaf3ff;
  --white: #fff;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 4px 16px rgba(8, 43, 87, .06);
  --shadow: 0 14px 36px rgba(8, 43, 87, .10);
  --shadow-lg: 0 24px 60px rgba(8, 43, 87, .16);
  --maxw: 1180px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC",
    system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

*, *::before, *::after { 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: 1.8;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--brand-700); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--brand-500); }
h1, h2, h3, h4 { margin: 0 0 .6em; line-height: 1.35; font-weight: 700; letter-spacing: .01em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.1rem); }
h2 { font-size: clamp(1.55rem, 3vw, 2.15rem); }
h3 { font-size: clamp(1.08rem, 1.8vw, 1.3rem); }
p { margin: 0 0 1.1em; }
ul, ol { padding-left: 1.3em; }
strong { color: var(--brand-900); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.container { width: min(100% - 40px, var(--maxw)); margin-inline: auto; }
.section { padding: clamp(56px, 8vw, 96px) 0; }
.section--soft { background: var(--bg-soft); }
.section--tint { background: linear-gradient(180deg, #f3f8ff 0%, #ffffff 100%); }
.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;
}
.skip-link {
  position: absolute; left: 16px; top: -80px; z-index: 999;
  background: var(--brand-800); color: #fff; padding: 10px 18px; border-radius: 8px;
}
.skip-link:focus { top: 12px; color: #fff; }

/* ---------- 通用组件 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; font-weight: 700; letter-spacing: .14em;
  color: var(--brand-600); text-transform: uppercase;
  margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--accent); border-radius: 2px; }
.section-head { max-width: 760px; margin-bottom: clamp(30px, 4vw, 48px); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--center .eyebrow::after {
  content: ""; width: 22px; height: 2px; background: var(--accent); border-radius: 2px;
}
.section-head p { color: var(--ink-2); font-size: 1.02rem; margin: 0; }
.section-actions { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 10px 24px; border-radius: 999px;
  font-size: .95rem; font-weight: 600; border: 1px solid transparent;
  cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--brand-600); color: #fff; box-shadow: 0 8px 22px rgba(18, 100, 200, .24); }
.btn--primary:hover { background: var(--brand-700); color: #fff; }
.btn--light { background: #fff; color: var(--brand-800); }
.btn--light:hover { color: var(--brand-600); box-shadow: var(--shadow); }
.btn--ghost { border-color: var(--line); color: var(--brand-800); background: #fff; }
.btn--ghost:hover { border-color: var(--brand-500); color: var(--brand-600); }
.btn--accent { background: var(--accent); color: #04322f; }
.btn--accent:hover { background: var(--accent-light); color: #04322f; }
.btn .arrow { font-size: 1.1em; line-height: 1; }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #c6ddf8; }
.grid { display: grid; gap: 22px; }
.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)); }

.badge {
  display: inline-block; font-size: .76rem; font-weight: 600; letter-spacing: .04em;
  padding: 3px 12px; border-radius: 999px;
  background: var(--brand-050); color: var(--brand-700); border: 1px solid #cfe3ff;
}
.badge--accent { background: #e4faf7; color: #04756c; border-color: #b9eee7; }

/* ---------- 页头 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line-soft);
  transition: box-shadow .2s ease;
}
.site-header.is-scrolled { box-shadow: 0 6px 22px rgba(8, 43, 87, .08); }
.header-inner { display: flex; align-items: center; gap: 24px; min-height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--brand-900); flex-shrink: 0; }
.brand:hover { color: var(--brand-900); }
.brand__mark { width: 44px; height: 44px; flex: 0 0 44px; }
.brand__text { display: flex; flex-direction: column; line-height: 1.25; }
.brand__name { font-size: 1.06rem; font-weight: 800; letter-spacing: .02em; }
.brand__en { font-size: .62rem; letter-spacing: .08em; color: var(--ink-3); text-transform: uppercase; }
.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav__link {
  display: block; padding: 9px 14px; border-radius: 8px;
  font-size: .94rem; font-weight: 500; color: var(--ink-2);
}
.nav__link:hover, .nav__link[aria-current="page"] { color: var(--brand-700); background: var(--brand-050); }
.nav__link[aria-current="page"] { font-weight: 700; }
.header-cta { flex-shrink: 0; }
.nav-toggle {
  display: none; margin-left: auto; width: 44px; height: 44px;
  border: 1px solid var(--line); border-radius: 10px; background: #fff;
  align-items: center; justify-content: center; cursor: pointer; color: var(--brand-800);
}
.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

/* ---------- 面包屑 ---------- */
.breadcrumb { background: var(--bg-soft); border-bottom: 1px solid var(--line-soft); padding: 14px 0; font-size: .86rem; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; color: var(--ink-3); }
.breadcrumb li + li::before { content: "/"; margin-right: 8px; color: #b9c6d6; }
.breadcrumb a { color: var(--ink-2); }
.breadcrumb [aria-current="page"] { color: var(--brand-700); font-weight: 600; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: radial-gradient(1100px 520px at 82% 8%, rgba(0, 179, 164, .22), transparent 62%),
    radial-gradient(900px 600px at 8% 92%, rgba(44, 126, 230, .32), transparent 60%),
    linear-gradient(122deg, var(--brand-950) 0%, var(--brand-800) 55%, #0a4b93 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; opacity: .16;
  background-image: linear-gradient(rgba(255,255,255,.32) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.32) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(110deg, rgba(0,0,0,.8), transparent 78%);
}
.hero::after {
  content: ""; position: absolute; width: 460px; height: 460px; right: -120px; bottom: -260px;
  border: 1px solid rgba(255,255,255,.14); border-radius: 50%;
  box-shadow: 0 0 0 60px rgba(255,255,255,.025), 0 0 0 130px rgba(255,255,255,.02);
}
.hero__inner {
  position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr;
  gap: clamp(28px, 5vw, 64px); align-items: center;
  padding: clamp(64px, 9vw, 108px) 0 clamp(70px, 9vw, 116px);
}
.hero .eyebrow { color: var(--accent-light); }
.hero .eyebrow::before { background: var(--gold); }
.hero h1 { color: #fff; margin-bottom: 18px; letter-spacing: .02em; }
.hero h1 .accent { color: var(--accent-light); }
.hero__lead { font-size: clamp(1rem, 1.5vw, 1.16rem); color: rgba(255,255,255,.86); max-width: 660px; }
.hero__meta { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0 30px; }
.hero__meta .badge { background: rgba(255,255,255,.10); color: #e5f2ff; border-color: rgba(255,255,255,.22); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-card {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.20);
  border-radius: var(--radius-lg); padding: 26px; backdrop-filter: blur(10px);
  box-shadow: 0 24px 60px rgba(0,0,0,.18);
}
.hero-card__title { font-size: .82rem; letter-spacing: .12em; color: var(--accent-light); margin-bottom: 18px; font-weight: 700; }
.hero-card dl { display: grid; grid-template-columns: auto 1fr; gap: 12px 18px; margin: 0; font-size: .9rem; }
.hero-card dt { color: rgba(255,255,255,.62); white-space: nowrap; }
.hero-card dd { margin: 0; color: #fff; font-weight: 600; text-align: right; }

/* 首页摘要块（GEO 可引用答案） */
.answer-box {
  position: relative; margin-top: -34px; z-index: 3;
  background: #fff; border: 1px solid var(--line); border-left: 5px solid var(--accent);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: clamp(22px, 3vw, 32px);
}
.answer-box__label {
  display: inline-flex; align-items: center; gap: 8px; font-size: .78rem; font-weight: 700;
  letter-spacing: .1em; color: var(--accent); margin-bottom: 10px; text-transform: uppercase;
}
.answer-box p { margin: 0; font-size: 1.02rem; color: var(--ink-2); }
.answer-box strong { color: var(--brand-900); }

/* ---------- 数据条 ---------- */
.pillar-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.pillar { padding: 26px 28px; }
.pillar + .pillar { border-left: 1px solid var(--line); }
.pillar__label { font-size: .78rem; letter-spacing: .12em; color: var(--brand-600); font-weight: 700; margin-bottom: 8px; }
.pillar__value { font-size: 1.04rem; font-weight: 700; color: var(--brand-900); margin: 0; }

/* ---------- 卡片内容 ---------- */
.card__no { font-size: .8rem; font-weight: 800; letter-spacing: .1em; color: var(--brand-500); }
.card__icon {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: var(--brand-050); color: var(--brand-700); margin-bottom: 16px;
}
.card__icon svg { width: 24px; height: 24px; }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--ink-2); font-size: .94rem; margin-bottom: 0; }
.card ul { margin: 14px 0 0; padding-left: 1.1em; color: var(--ink-3); font-size: .88rem; }
.card ul li { margin-bottom: 4px; }
.card__tag { margin-bottom: 14px; }
.card--hover-link { display: block; color: inherit; }
.card--hover-link:hover { color: inherit; }

/* ---------- 新闻 ---------- */
.news-list { display: grid; gap: 14px; }
.news-item {
  display: grid; grid-template-columns: 118px 1fr auto; align-items: center; gap: 24px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 26px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.news-item:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #c6ddf8; }
.news-item__date { font-weight: 800; font-size: 1.02rem; color: var(--brand-700); letter-spacing: .02em; }
.news-item__date small { display: block; font-size: .76rem; font-weight: 500; color: var(--ink-3); letter-spacing: 0; }
.news-item__title { font-size: 1.1rem; margin: 0 0 6px; color: var(--ink); }
.news-item:hover .news-item__title { color: var(--brand-700); }
.news-item__excerpt { margin: 0; color: var(--ink-3); font-size: .9rem; line-height: 1.65; }
.news-item__arrow { color: var(--brand-500); font-size: 1.4rem; }
.news-item__cat { margin-bottom: 8px; }

/* ---------- 文章页 ---------- */
.article { padding: clamp(44px, 6vw, 72px) 0 clamp(60px, 8vw, 96px); }
.article__layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: clamp(32px, 5vw, 64px); align-items: start; }
.article__head { border-bottom: 1px solid var(--line); padding-bottom: 26px; margin-bottom: 30px; }
.article__head h1 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); margin: 12px 0 14px; }
.article__meta { display: flex; flex-wrap: wrap; gap: 14px; color: var(--ink-3); font-size: .88rem; }
.article__body { font-size: 1.02rem; color: var(--ink-2); }
.article__body p { margin-bottom: 1.35em; }
.article__lead { font-size: 1.12rem; color: var(--ink); font-weight: 500; }
.article__aside { position: sticky; top: 100px; }
.aside-card { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.aside-card h3 { font-size: 1rem; }
.aside-card p { font-size: .88rem; color: var(--ink-2); }
.source-note {
  margin-top: 36px; padding: 20px 24px; border-radius: var(--radius);
  background: var(--bg-soft); border: 1px dashed #c9d9ec; font-size: .9rem; color: var(--ink-2);
}
.source-note a { word-break: break-all; }
.article__nav { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* ---------- 事实表 ---------- */
.fact-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.fact-table th, .fact-table td { padding: 15px 20px; border-bottom: 1px solid var(--line-soft); text-align: left; font-size: .94rem; vertical-align: top; }
.fact-table tr:last-child th, .fact-table tr:last-child td { border-bottom: none; }
.fact-table th { width: 190px; background: var(--bg-soft); color: var(--brand-800); font-weight: 700; }
.fact-table td { color: var(--ink-2); }

/* ---------- 时间轴 ---------- */
.timeline { list-style: none; margin: 0; padding: 0 0 0 26px; border-left: 2px solid var(--brand-100); }
.timeline li { position: relative; padding: 0 0 30px 24px; }
.timeline li:last-child { padding-bottom: 0; }
.timeline li::before {
  content: ""; position: absolute; left: -35px; top: 6px; width: 14px; height: 14px;
  border-radius: 50%; background: #fff; border: 3px solid var(--brand-600);
}
.timeline__date { font-size: .84rem; font-weight: 800; letter-spacing: .06em; color: var(--brand-600); }
.timeline__title { font-size: 1.06rem; margin: 4px 0 6px; }
.timeline__text { margin: 0; color: var(--ink-3); font-size: .92rem; }

/* ---------- FAQ ---------- */
.faq-list { display: grid; gap: 12px; max-width: 900px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.faq-item[open] { border-color: #bcd7f7; box-shadow: var(--shadow-sm); }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 20px 56px 20px 24px; position: relative;
  font-weight: 700; color: var(--brand-900); font-size: 1.02rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 24px; top: 50%; transform: translateY(-50%);
  width: 26px; height: 26px; border-radius: 50%; background: var(--brand-050);
  color: var(--brand-700); display: grid; place-items: center; font-size: 1.1rem; line-height: 1;
}
.faq-item[open] summary::after { content: "−"; background: var(--brand-600); color: #fff; }
.faq-item__answer { padding: 0 24px 22px; color: var(--ink-2); font-size: .96rem; }
.faq-item__answer p { margin: 0; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.contact-card { padding: 30px; }
.contact-card dl { margin: 0; }
.contact-card dt { font-size: .8rem; letter-spacing: .08em; color: var(--brand-600); font-weight: 700; margin-top: 18px; }
.contact-card dt:first-child { margin-top: 0; }
.contact-card dd { margin: 4px 0 0; color: var(--ink); font-size: 1rem; }
.notice-box {
  background: #fffaf0; border: 1px solid #f6dfae; border-left: 4px solid var(--gold);
  border-radius: var(--radius-sm); padding: 16px 20px; font-size: .92rem; color: #6b5326; margin-top: 20px;
}

/* ---------- CTA ---------- */
.cta-band {
  position: relative; overflow: hidden; color: #fff; text-align: center;
  background: linear-gradient(120deg, var(--brand-900), var(--brand-700) 70%, #0d6fa8);
  padding: clamp(48px, 7vw, 76px) 0;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0; opacity: .12;
  background-image: radial-gradient(circle at 1px 1px, #fff 1px, transparent 0); background-size: 26px 26px;
}
.cta-band .container { position: relative; z-index: 1; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.84); max-width: 680px; margin: 0 auto 26px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--brand-950); color: rgba(255,255,255,.72); padding: clamp(48px, 6vw, 72px) 0 0; font-size: .9rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 36px; padding-bottom: 44px; }
.site-footer h3 { color: #fff; font-size: .98rem; margin-bottom: 16px; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; color: #fff; }
.footer-brand .brand__en { color: rgba(255,255,255,.5); }
.site-footer p { color: rgba(255,255,255,.62); font-size: .88rem; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 9px; }
.footer-links a { color: rgba(255,255,255,.70); font-size: .88rem; }
.footer-links a:hover { color: var(--accent-light); }
.link-list { list-style: none; margin: 0; padding: 0; }
.link-list li { position: relative; padding-left: 18px; margin-bottom: 10px; font-size: .92rem; color: var(--ink-2); }
.link-list li::before {
  content: ""; position: absolute; left: 0; top: .78em; width: 6px; height: 6px;
  border-radius: 50%; background: var(--accent);
}
.link-list a { color: var(--brand-700); font-weight: 500; }
.link-list a:hover { color: var(--brand-500); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12); padding: 20px 0;
  display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center; justify-content: space-between;
  font-size: .82rem; color: rgba(255,255,255,.55);
}
.footer-bottom a { color: rgba(255,255,255,.72); }
.footer-bottom a:hover { color: var(--accent-light); }
.footer-icp { display: inline-flex; align-items: center; gap: 6px; }

.back-to-top {
  position: fixed; right: 20px; bottom: 20px; z-index: 60;
  width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--line);
  background: #fff; color: var(--brand-700); box-shadow: var(--shadow);
  display: grid; place-items: center; cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(10px); transition: all .25s ease;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top svg { width: 20px; height: 20px; }

/* ---------- 通用页面头 ---------- */
.page-hero { background: linear-gradient(120deg, #f0f6ff, #ffffff 70%); border-bottom: 1px solid var(--line-soft); padding: clamp(40px, 6vw, 68px) 0; }
.page-hero h1 { margin-bottom: 12px; color: var(--brand-900); }
.page-hero p { color: var(--ink-2); max-width: 780px; margin: 0; font-size: 1.04rem; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column: 1 / -1; }
  .article__layout { grid-template-columns: minmax(0, 1fr) 240px; }
  .nav__link { padding: 8px 10px; font-size: .9rem; }
}
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; padding-bottom: 78px; }
  .hero-card { max-width: 520px; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .article__layout { grid-template-columns: 1fr; }
  .article__aside { position: static; }
  .pillar-strip { grid-template-columns: 1fr; }
  .pillar + .pillar { border-left: none; border-top: 1px solid var(--line); }
}
@media (max-width: 780px) {
  .header-inner { gap: 10px; min-height: 66px; }
  .brand { flex-shrink: 1; min-width: 0; }
  .brand__text { min-width: 0; }
  .brand__name { font-size: 1rem; }
  .brand__en { display: none; }
  .nav-toggle { display: flex; flex-shrink: 0; }
  .header-cta { display: none; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow); display: none; margin: 0;
  }
  .nav.is-open { display: block; }
  .nav__list { flex-direction: column; align-items: stretch; padding: 12px 20px 20px; gap: 2px; }
  .nav__link { padding: 12px 14px; border-radius: 8px; font-size: 1rem; }
  .news-item { grid-template-columns: 1fr; gap: 10px; padding: 20px; }
  .news-item__arrow { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .footer-grid > div:last-child { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .container { width: min(100% - 28px, var(--maxw)); }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .hero__inner { padding-top: 52px; }
  .hero-card { padding: 20px; }
  .hero-card dl { grid-template-columns: auto 1fr; font-size: .84rem; gap: 10px 12px; }
  .answer-box { margin-top: -22px; }
  .fact-table th, .fact-table td { display: block; width: 100%; padding: 10px 16px; border-bottom: none; }
  .fact-table th { padding-bottom: 2px; background: #fff; }
  .fact-table td { padding-top: 0; padding-bottom: 14px; border-bottom: 1px solid var(--line-soft); }
  .fact-table tr:last-child td { border-bottom: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div:first-child, .footer-grid > div:last-child { grid-column: auto; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .section-actions .btn { flex: 1 1 100%; }
  .btn { min-height: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}
@media print {
  .site-header, .site-footer, .back-to-top, .cta-band, .nav-toggle { display: none !important; }
  body { color: #000; }
  .hero { background: #fff; color: #000; }
  .hero h1, .hero__lead { color: #000; }
}