:root {
  --ink: #172033;
  --muted: #667085;
  --line: #dfe5ee;
  --accent: #087ea4;
  --accent-dark: #075d7a;
  --accent-soft: #e9f7fb;
  --paper: #fff;
  --page: #f4f7fa;
  --shadow: 0 14px 35px rgba(24, 39, 75, .08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--page); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
.site-header { position: sticky; top: 0; z-index: 30; background: rgba(255,255,255,.96); border-bottom: 1px solid rgba(223,229,238,.9); backdrop-filter: blur(14px); }
.header-bar { width: min(1180px, calc(100% - 32px)); min-height: 76px; margin: auto; display: flex; align-items: center; gap: 32px; }
.brand { display: flex; flex: 0 0 auto; align-items: center; gap: 12px; margin-right: auto; }
.brand img { width: 52px; height: 52px; object-fit: contain; border-radius: 50%; }
.brand > span { display: flex; flex-direction: column; line-height: 1.25; }
.brand strong { display: block; font-size: 20px; letter-spacing: .02em; white-space: nowrap; }
.brand-dot { display: inline; margin: 0 .2em; color: var(--accent); font-size: .72em; vertical-align: .08em; }
.brand small { display: block; color: var(--muted); margin-top: 4px; font-size: 12px; white-space: nowrap; }
.main-nav { display: flex; align-items: center; gap: 18px; }
.main-nav a { position: relative; padding: 26px 2px 22px; font-weight: 600; color: #4b5565; }
.main-nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 17px; height: 3px; border-radius: 3px; background: var(--accent); transform: scaleX(0); transition: .2s; }
.main-nav a:hover, .main-nav a.active { color: var(--accent-dark); }
.main-nav a.active::after { transform: scaleX(1); }
.header-search { width: 235px; display: flex; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; background: #fff; }
.header-search input { min-width: 0; width: 100%; border: 0; outline: 0; padding: 9px 12px; }
.header-search button { flex: 0 0 58px; border: 0; padding: 0 12px; color: #fff; background: var(--accent); cursor: pointer; white-space: nowrap; }
.nav-toggle { display: none; border: 0; background: none; font-size: 25px; }
.site-main { min-height: calc(100vh - 240px); }
.hero { color: #fff; background: linear-gradient(125deg, #086b8c 0%, #0a8caf 55%, #0ca2b5 100%); overflow: hidden; }
.hero-inner { position: relative; width: min(1180px, calc(100% - 32px)); min-height: 430px; margin: auto; display: grid; grid-template-columns: 1fr 310px; align-items: center; gap: 80px; }
.hero-inner::before, .hero-inner::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(255,255,255,.16); }
.hero-inner::before { width: 420px; height: 420px; right: -180px; top: -170px; }
.hero-inner::after { width: 300px; height: 300px; left: -200px; bottom: -210px; }
.eyebrow { display: block; margin-bottom: 12px; font-size: 13px; font-weight: 700; letter-spacing: .18em; opacity: .82; }
.hero h1 { max-width: 760px; margin: 0; font-size: clamp(32px, 3.35vw, 42px); line-height: 1.25; text-wrap: balance; }
.hero-copy > p { max-width: 680px; margin: 18px 0 24px; font-size: 18px; color: rgba(255,255,255,.82); }
.hero-search, .page-search { display: flex; max-width: 680px; padding: 7px; border-radius: 12px; background: #fff; box-shadow: 0 15px 30px rgba(2,53,71,.18); }
.hero-search input, .page-search input { flex: 1; min-width: 0; border: 0; outline: 0; padding: 12px 15px; color: var(--ink); }
.hero-search button, .page-search button { border: 0; border-radius: 8px; padding: 0 25px; color: #fff; background: var(--accent-dark); cursor: pointer; }
.hot-words { display: flex; gap: 13px; margin-top: 15px; color: rgba(255,255,255,.78); font-size: 14px; }
.hot-words a { border-bottom: 1px dashed rgba(255,255,255,.55); }
.hero-panel { position: relative; z-index: 2; padding: 30px 28px 27px; text-align: center; border: 1px solid rgba(255,255,255,.3); border-radius: 20px; background: rgba(255,255,255,.12); box-shadow: 0 20px 45px rgba(1,50,68,.18); backdrop-filter: blur(10px); }
.panel-mark { display: grid; place-items: center; width: 66px; height: 66px; margin: 0 auto 15px; border-radius: 18px; color: var(--accent-dark); background: #fff; font-weight: 800; font-size: 22px; }
.panel-mark img { display: block; width: 52px; height: 52px; object-fit: contain; }
.hero-panel strong { display: block; font-size: 54px; line-height: 1.1; }
.hero-panel p { margin: 4px 0 18px; color: rgba(255,255,255,.8); }
.hero-panel .quick-nav-title { margin-bottom: 20px; color: #fff; font-size: 22px; line-height: 1.3; }
.quick-nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.quick-nav a { display: block; padding: 9px 8px; border: 1px solid rgba(255,255,255,.32); border-radius: 9px; color: #fff; background: rgba(3,70,91,.22); font-size: 14px; font-weight: 600; transition: .2s; }
.quick-nav a:hover { border-color: #fff; color: var(--accent-dark); background: #fff; transform: translateY(-2px); }
.data-state { display: inline-flex; align-items: center; gap: 7px; padding: 7px 11px; border-radius: 20px; background: rgba(3,44,58,.2); font-size: 12px; }
.data-state span { width: 8px; height: 8px; border-radius: 50%; background: #ffd166; }
.data-state.online span { background: #7ee787; }
.content-section { width: min(1180px, calc(100% - 32px)); margin: 54px auto; }
.tutorial-section { margin-top: 38px; margin-bottom: 54px; }
.tutorial-hub { padding: 30px; border: 1px solid var(--line); border-radius: 18px; background: var(--paper); box-shadow: 0 12px 32px rgba(24,39,75,.055); }
.tutorial-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.tutorial-heading span { color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .14em; }
.tutorial-heading h2 { margin: 3px 0 0; font-size: 28px; }
.tutorial-heading p { max-width: 520px; margin: 0; color: var(--muted); text-align: right; }
.tutorial-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.tutorial-card { display: flex; min-width: 0; min-height: 250px; padding: 24px; flex-direction: column; border: 1px solid var(--line); border-radius: 14px; background: #fbfdff; transition: .2s; }
.tutorial-card:hover { border-color: #9ccfdd; background: #fff; box-shadow: var(--shadow); transform: translateY(-3px); }
.tutorial-card-top { display: flex; align-items: flex-start; gap: 16px; }
.tutorial-icon { display: grid; place-items: center; flex: 0 0 56px; width: 56px; height: 56px; overflow: hidden; border: 3px solid #edf0f3; border-radius: 15px; background: #fff; }
.tutorial-icon img { display: block; width: 100%; height: 100%; object-fit: cover; }
.tutorial-copy { min-width: 0; }
.tutorial-copy h3 { margin: 1px 0 7px; font-size: 20px; line-height: 1.4; }
.tutorial-copy p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; overflow-wrap: anywhere; }
.tutorial-actions { display: grid; gap: 9px; margin-top: auto; padding-top: 22px; }
.tutorial-actions a { display: flex; align-items: center; justify-content: space-between; min-height: 42px; padding: 9px 13px; border-radius: 8px; color: var(--accent-dark); background: var(--accent-soft); font-size: 14px; font-weight: 700; overflow-wrap: anywhere; transition: .18s; }
.tutorial-actions a span { margin-left: 10px; transition: transform .18s; }
.tutorial-actions a:hover { color: #fff; background: var(--accent); }
.tutorial-actions a:hover span { transform: translateX(3px); }
.section-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 22px; }
.section-heading span { color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .14em; }
.section-heading h2 { margin: 3px 0 0; font-size: 28px; }
.section-heading > a { color: var(--accent-dark); font-weight: 600; }
.category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.category-card { display: flex; align-items: center; gap: 17px; padding: 22px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); box-shadow: 0 7px 20px rgba(24,39,75,.04); transition: .2s; }
.category-card:hover { transform: translateY(-3px); border-color: #9ccfdd; box-shadow: var(--shadow); }
.category-icon { display: grid; place-items: center; flex: 0 0 50px; height: 50px; border-radius: 13px; color: var(--accent-dark); background: var(--accent-soft); font-weight: 800; }
.category-main { display: flex; flex: 1; flex-direction: column; }
.category-main strong { font-size: 18px; }
.category-main small { color: var(--muted); margin-top: 3px; }
.category-count { display: grid; place-items: center; min-width: 34px; height: 28px; padding: 0 8px; border-radius: 15px; color: var(--accent-dark); background: #f0f5f7; font-size: 13px; font-weight: 700; }
.question-list { display: grid; gap: 15px; }
.question-card { padding: 25px 28px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); transition: .2s; }
.question-card:hover { border-color: #a9cfda; box-shadow: 0 10px 28px rgba(24,39,75,.06); }
.question-meta { display: flex; gap: 15px; color: var(--muted); font-size: 13px; }
.question-meta a { padding: 2px 9px; border-radius: 5px; color: var(--accent-dark); background: var(--accent-soft); font-weight: 700; }
.question-card h3 { margin: 12px 0 7px; font-size: 21px; line-height: 1.45; }
.question-card h3 a:hover { color: var(--accent); }
.question-card p { margin: 0; color: var(--muted); }
.read-more { display: inline-block; margin-top: 14px; color: var(--accent-dark); font-weight: 700; font-size: 14px; }
.page-banner { color: #fff; background: linear-gradient(120deg, #075d7a, #0795ae); }
.page-banner > div { width: min(1180px, calc(100% - 32px)); margin: auto; padding: 58px 0; }
.page-banner h1 { margin: 0; font-size: 38px; }
.page-banner p { margin: 8px 0 0; color: rgba(255,255,255,.8); }
.search-banner > div { text-align: center; }
.page-search { max-width: 720px; margin: 24px auto 0; text-align: left; }
.page-layout { display: grid; grid-template-columns: 245px 1fr; gap: 28px; align-items: start; }
.category-sidebar { position: sticky; top: 100px; padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.category-sidebar h2 { margin: 3px 10px 13px; font-size: 18px; }
.category-sidebar a { display: flex; justify-content: space-between; padding: 10px 12px; border-radius: 8px; color: #4e596b; }
.category-sidebar a:hover, .category-sidebar a.active { color: var(--accent-dark); background: var(--accent-soft); }
.category-sidebar strong { font-size: 13px; }
.directory-title { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.directory-title h2 { margin: 0; font-size: 25px; }
.directory-title span { color: var(--muted); }
.question-list.compact .question-card { padding: 21px 24px; }
.empty-state { padding: 70px 25px; border: 1px dashed #c8d3df; border-radius: 15px; text-align: center; background: #fff; }
.empty-state strong { font-size: 21px; }
.empty-state p { color: var(--muted); }
.article-shell { max-width: 960px; }
.breadcrumb { display: flex; gap: 9px; margin-bottom: 17px; color: var(--muted); font-size: 14px; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb em { font-style: normal; }
.knowledge-article { padding: 42px clamp(24px, 5vw, 62px); border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow); }
.article-category { display: inline-block; padding: 4px 10px; border-radius: 5px; color: var(--accent-dark); background: var(--accent-soft); font-size: 13px; font-weight: 700; }
.knowledge-article h1 { margin: 14px 0 12px; font-size: clamp(28px, 4vw, 40px); line-height: 1.38; }
.article-meta { display: flex; gap: 18px; color: var(--muted); font-size: 13px; }
.answer { margin-top: 30px; padding-top: 28px; border-top: 1px solid var(--line); font-size: 17px; }
.answer-label { margin: 0 0 18px; font-size: 24px; }
.answer h2:not(.answer-label) { margin: 28px 0 10px; font-size: 22px; }
.answer ol, .answer ul { padding-left: 1.5em; }
.answer li + li { margin-top: 10px; }
.answer figure { margin: 24px 0 32px; }
.answer figure img { display: block; width: auto; max-width: 100%; height: auto; border: 1px solid var(--line); border-radius: 10px; }
.answer figcaption { margin-top: 9px; color: #303849; font-size: 16px; line-height: 1.65; }
.summary, .note { padding: 16px 18px; border-radius: 10px; }
.summary { background: var(--accent-soft); border-left: 4px solid var(--accent); }
.note { background: #fff8e8; border-left: 4px solid #df9b18; }
.article-tags { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--line); }
.article-tags a { padding: 4px 10px; border-radius: 5px; color: #526071; background: #f1f4f7; font-size: 13px; }
.site-footer { margin-top: 70px; color: #c5d0da; background: #172736; }
.footer-inner { width: min(1180px, calc(100% - 32px)); min-height: 170px; margin: auto; display: grid; grid-template-columns: 1fr auto; align-content: center; gap: 15px 45px; }
.footer-inner strong { color: #fff; font-size: 20px; }
.footer-inner p { margin: 4px 0; }
.footer-links { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 12px 22px; }
.footer-links a:hover { color: #fff; }
.copyright { grid-column: 1 / -1; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.1); font-size: 13px; display: flex; align-items: center; flex-wrap: wrap; gap: 7px 16px; }
.copyright a { display: inline-flex; align-items: center; color: #c5d0da; }
.copyright a:hover { color: #fff; }
.public-security-record { gap: 5px; }
.public-security-record img { width: 20px; height: 20px; object-fit: contain; }
@media (max-width: 900px) {
  .header-search { display: none; }
  .hero-inner { grid-template-columns: 1fr; min-height: 520px; gap: 25px; padding: 65px 0; }
  .hero-panel { display: none; }
  .tutorial-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
  .tutorial-heading p { max-width: none; text-align: left; }
  .tutorial-grid { grid-template-columns: 1fr; }
  .tutorial-card { min-height: 0; }
}
@media (max-width: 720px) {
  .header-bar { min-height: 68px; }
  .brand img { width: 44px; height: 44px; }
  .brand small { display: none; }
  .nav-toggle { display: block; }
  .main-nav { display: none; position: absolute; left: 0; right: 0; top: 68px; padding: 8px 16px 16px; background: #fff; box-shadow: 0 12px 20px rgba(24,39,75,.1); }
  .main-nav.open { display: grid; }
  .main-nav a { padding: 10px 8px; }
  .main-nav a::after { display: none; }
  .tutorial-hub { padding: 24px; }
  .category-grid { grid-template-columns: 1fr; }
  .page-layout { grid-template-columns: 1fr; }
  .category-sidebar { position: static; }
  .footer-inner { grid-template-columns: 1fr; padding: 35px 0; }
  .copyright { grid-column: 1; }
}
@media (max-width: 520px) {
  .hero-inner { width: min(100% - 28px, 1180px); min-height: 500px; }
  .hero h1 { font-size: 30px; line-height: 1.3; }
  .hero-copy > p { font-size: 16px; }
  .hero-search button, .page-search button { padding: 0 16px; }
  .hot-words { flex-wrap: wrap; }
  .content-section { width: min(100% - 24px, 1180px); margin: 36px auto; }
  .tutorial-section { margin-top: 24px; }
  .tutorial-hub { padding: 20px 16px; border-radius: 14px; }
  .tutorial-heading { margin-bottom: 16px; padding-bottom: 16px; }
  .tutorial-heading h2 { font-size: 25px; }
  .tutorial-card { padding: 20px 16px; }
  .tutorial-card-top { gap: 13px; }
  .tutorial-icon { width: 50px; height: 50px; }
  .tutorial-copy h3 { font-size: 18px; }
  .tutorial-actions { width: 100%; padding-top: 18px; }
  .tutorial-actions a { width: 100%; }
  .question-card { padding: 20px; }
  .question-meta { flex-wrap: wrap; gap: 8px; }
  .knowledge-article { border-radius: 12px; }
}