:root {
  --green-900: #0f4938;
  --green-800: #125844;
  --green-700: #176b52;
  --green-600: #1f7a5e;
  --green-100: #dfece6;
  --green-050: #edf4f1;
  --gold-500: #c9a24b;
  --gold-400: #d4b266;
  --gold-100: #f3ead2;
  --ink-900: #173238;
  --ink-700: #3e5752;
  --ink-500: #66796f;
  --warm-050: #f7f5f0;
  --warm-100: #f1eee6;
  --gray-200: #d9e2dd;
  --gray-100: #e8eee9;
  --white: #ffffff;
  --error: #d95c5c;
  --shadow-xs: 0 1px 2px rgba(23, 50, 56, .05);
  --shadow-sm: 0 6px 24px rgba(23, 50, 56, .07);
  --shadow-md: 0 18px 48px rgba(23, 50, 56, .1);
  --shadow-lg: 0 32px 80px rgba(15, 73, 56, .16);
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --container: 1200px;
  --reading: 720px;
  --ease: 180ms cubic-bezier(.4, 0, .2, 1);
  --font-sans: "Source Han Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: Inter, "SF Pro Text", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink-900);
  background: var(--warm-050);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.modal-open { overflow: hidden; }
button, input, select, textarea { font: inherit; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; }
button, a, input, select, textarea { outline: none; }
:focus-visible {
  border-radius: 4px;
  box-shadow: 0 0 0 2px var(--white), 0 0 0 5px var(--gold-500);
}
[hidden] { display: none !important; }

.pagination { display: flex; margin-top: 36px; align-items: center; justify-content: center; gap: 16px; }
.pagination__link { min-width: 88px; padding: 9px 16px; border: 1px solid var(--gray-200); border-radius: var(--r-sm); color: var(--green-700); background: var(--white); text-align: center; font-size: 14px; font-weight: 700; }
.pagination__link:hover { border-color: var(--green-700); }
.pagination__link.is-disabled { color: var(--ink-500); background: var(--warm-050); cursor: not-allowed; opacity: .65; }
.pagination__status { color: var(--ink-500); font-size: 14px; }

.skip-link {
  position: fixed;
  z-index: 120;
  top: 14px;
  left: 14px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--green-700);
  border-radius: var(--r-sm);
  font-size: 14px;
  font-weight: 700;
  transform: translateY(-180%);
  transition: transform var(--ease);
}
.skip-link:focus { transform: translateY(0); }
.container { width: min(100% - 48px, var(--container)); margin-inline: auto; }

.site-header {
  position: sticky;
  z-index: 80;
  top: 0;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--gray-200);
  backdrop-filter: blur(14px);
}
.nav { display: flex; min-height: 76px; align-items: center; gap: 16px; }
.brand { display: inline-flex; flex: 0 0 auto; align-items: center; min-height: 44px; }
.brand img { width: 148px; height: auto; }
.nav-links { display: flex; margin-right: auto; margin-left: 24px; align-items: center; gap: 2px; list-style: none; }
.nav-links a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0 12px;
  border-radius: var(--r-sm);
  color: var(--ink-700);
  font-size: 14px;
  font-weight: 600;
  transition: color var(--ease), background var(--ease);
}
.nav-links a:hover, .nav-links a.is-current { color: var(--green-700); background: var(--green-050); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.login-link { display: inline-flex; min-height: 44px; align-items: center; font-size: 14px; font-weight: 600; }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0;
  color: var(--green-700);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-sm);
}
.menu-toggle svg { width: 22px; height: 22px; }

.btn {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  transition: background var(--ease), border-color var(--ease), color var(--ease), box-shadow var(--ease), transform var(--ease);
}
.btn svg { width: 18px; height: 18px; }
.btn--primary { color: var(--white); background: var(--green-700); border-color: var(--green-700); box-shadow: 0 8px 20px rgba(23, 107, 82, .2); }
.btn--primary:hover { background: var(--green-800); border-color: var(--green-800); box-shadow: 0 10px 26px rgba(23, 107, 82, .26); transform: translateY(-1px); }
.btn--secondary { color: var(--green-700); background: var(--white); border-color: var(--green-700); }
.btn--secondary:hover { color: var(--white); background: var(--green-700); }
.btn--ghost { color: var(--white); background: transparent; border-color: rgba(255, 255, 255, .5); }
.btn--ghost:hover { color: var(--green-800); background: var(--white); border-color: var(--white); }
.text-link { display: inline-flex; min-height: 44px; align-items: center; gap: 8px; color: var(--green-700); font-size: 14px; font-weight: 700; }
.text-link svg { width: 17px; height: 17px; transition: transform var(--ease); }
.text-link:hover svg { transform: translateX(4px); }

.breadcrumb { display: flex; min-height: 50px; align-items: center; gap: 9px; color: var(--ink-500); font-size: 13px; }
.breadcrumb a:hover { color: var(--green-700); }
.breadcrumb svg { width: 13px; height: 13px; }
.tag {
  display: inline-flex;
  min-height: 27px;
  align-items: center;
  padding: 3px 11px;
  color: var(--green-800);
  background: var(--green-050);
  border: 1px solid var(--green-100);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}
.tag--gold { color: var(--green-900); background: var(--gold-100); border-color: rgba(201, 162, 75, .28); }
.eyebrow { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; color: var(--green-700); font-size: 13px; font-weight: 800; letter-spacing: .15em; }
.eyebrow b { color: var(--gold-500); font-family: var(--font-num); font-size: 15px; letter-spacing: .05em; }
.eyebrow::after { width: 42px; height: 1px; content: ""; background: linear-gradient(90deg, var(--gold-500), transparent); }

.section { position: relative; padding: 82px 0; }
.section[id] { scroll-margin-top: 96px; }
.section--white { background: var(--white); }
.section--warm { background: var(--warm-050); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 40px; }
.section-title { font-size: clamp(30px, 3vw, 40px); line-height: 1.25; letter-spacing: .005em; }
.section-desc { max-width: 430px; color: var(--ink-700); line-height: 1.8; }

/* Knowledge landing */
.knowledge-hero { position: relative; overflow: hidden; color: var(--white); background: var(--green-900); }
.knowledge-hero::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: .22;
  background-image: linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(90deg, transparent 0%, #000 58%, #000 100%);
}
.knowledge-hero::after {
  position: absolute;
  top: -170px;
  right: -130px;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(212, 178, 102, .32);
  border-radius: 50%;
  content: "";
  box-shadow: 0 0 0 54px rgba(255,255,255,.025), 0 0 0 108px rgba(255,255,255,.018);
}
.knowledge-hero__grid { position: relative; z-index: 1; display: grid; min-height: 500px; grid-template-columns: minmax(0, 1.45fr) minmax(290px, .55fr); align-items: center; gap: 70px; padding: 64px 0 76px; }
.knowledge-hero h1 { max-width: 760px; font-size: clamp(42px, 5vw, 66px); line-height: 1.13; letter-spacing: .01em; }
.knowledge-hero__lead { max-width: 700px; margin-top: 22px; color: rgba(255,255,255,.76); font-size: 18px; line-height: 1.9; }
.knowledge-search { display: flex; max-width: 720px; margin-top: 34px; gap: 10px; padding: 8px; background: var(--white); border: 1px solid rgba(255,255,255,.3); border-radius: var(--r-md); box-shadow: var(--shadow-lg); }
.knowledge-search svg { width: 20px; height: 20px; margin-left: 12px; align-self: center; color: var(--ink-500); }
.knowledge-search input { min-width: 0; flex: 1; padding: 10px 4px; color: var(--ink-900); background: transparent; border: 0; }
.knowledge-search input::placeholder { color: var(--ink-500); }
.search-hint { min-height: 24px; margin-top: 10px; color: rgba(255,255,255,.72); font-size: 13px; }
.hero-index { position: relative; padding: 28px 26px; color: var(--ink-900); background: rgba(255,255,255,.96); border: 1px solid rgba(255,255,255,.5); border-radius: var(--r-lg); box-shadow: var(--shadow-lg); }
.hero-index::before { position: absolute; top: 0; left: 26px; width: 72px; height: 3px; content: ""; background: var(--gold-500); }
.hero-index__label { color: var(--green-700); font-family: var(--font-num); font-size: 12px; font-weight: 800; letter-spacing: .14em; }
.hero-index h2 { margin-top: 12px; font-size: 22px; line-height: 1.45; }
.hero-index ol { margin-top: 20px; list-style: none; counter-reset: index; }
.hero-index li { display: grid; grid-template-columns: 30px 1fr; gap: 10px; padding: 13px 0; border-top: 1px solid var(--gray-100); color: var(--ink-700); font-size: 14px; }
.hero-index li::before { color: var(--gold-500); font-family: var(--font-num); font-weight: 800; content: "0" counter(index); counter-increment: index; }

.quick-questions { position: relative; z-index: 4; margin-top: -28px; }
.quick-questions__inner { display: flex; min-height: 58px; align-items: center; gap: 12px; padding: 12px 18px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-md); box-shadow: var(--shadow-sm); }
.quick-questions strong { flex: 0 0 auto; color: var(--green-800); font-size: 13px; }
.question-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.question-chip { display: inline-flex; min-height: 34px; align-items: center; padding: 5px 12px; color: var(--ink-700); background: var(--warm-050); border: 1px solid var(--gray-100); border-radius: 999px; font-size: 12px; transition: color var(--ease), border-color var(--ease), background var(--ease); }
.question-chip:hover { color: var(--green-700); background: var(--green-050); border-color: var(--green-100); }

.category-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.category-card { position: relative; overflow: hidden; min-height: 216px; padding: 26px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-md); transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease); }
.category-card:hover { border-color: rgba(23,107,82,.45); box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.category-card__top { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.category-icon { display: grid; width: 48px; height: 48px; place-items: center; color: var(--green-700); background: var(--green-050); border: 1px solid var(--green-100); border-radius: 14px; }
.category-icon svg { width: 25px; height: 25px; }
.category-no { color: var(--gold-500); font-family: var(--font-num); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.category-card h3 { margin-top: 28px; font-size: 20px; }
.category-card p { margin-top: 8px; color: var(--ink-500); font-size: 14px; line-height: 1.75; }
.category-card .text-link { margin-top: 16px; }

.series-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.series-card { position: relative; display: flex; min-height: 270px; flex-direction: column; padding: 28px; background: var(--warm-050); border: 1px solid var(--gray-200); border-radius: var(--r-lg); transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease); }
.series-card:hover { border-color: rgba(23,107,82,.42); box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.series-card--primary { color: var(--white); background: var(--green-800); border-color: var(--green-800); }
.series-card--primary p { color: rgba(255,255,255,.72) !important; }
.series-card--primary .text-link { color: var(--white); }
.series-card > .tag { max-width: calc(100% - 72px); align-self: flex-start; }
.series-card__count { position: absolute; top: 28px; right: 28px; color: var(--gold-500); font-family: var(--font-num); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.series-card--primary .series-card__count { color: var(--gold-400); }
.series-card h3 { max-width: 280px; margin-top: 28px; font-size: 23px; line-height: 1.42; }
.series-card p { margin-top: 12px; color: var(--ink-500); font-size: 14px; line-height: 1.8; }
.series-card .text-link { margin-top: auto; padding-top: 20px; }

.topic-stack { display: grid; gap: 18px; }
.topic-section { scroll-margin-top: 96px; overflow: hidden; display: grid; grid-template-columns: minmax(260px, .72fr) minmax(0, 2.28fr); background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-lg); box-shadow: var(--shadow-xs); }
.topic-section__head { display: flex; min-height: 244px; flex-direction: column; align-items: flex-start; padding: 28px; background: linear-gradient(145deg, var(--green-050), var(--white)); border-right: 1px solid var(--gray-200); }
.topic-section__head > div { width: 100%; }
.topic-no { display: block; color: var(--gold-500); font-family: var(--font-num); font-size: 13px; font-weight: 800; letter-spacing: .14em; }
.topic-section__head h3 { margin-top: 22px; font-size: 23px; line-height: 1.4; }
.topic-section__head p { margin-top: 11px; color: var(--ink-500); font-size: 14px; line-height: 1.75; }
.topic-section__head .text-link { margin-top: auto; }
.topic-content { display: grid; grid-template-columns: 1.15fr .925fr .925fr; gap: 0; }
.topic-feature { display: flex; min-height: 244px; flex-direction: column; padding: 26px; border-right: 1px solid var(--gray-200); transition: background var(--ease); }
.topic-feature:hover { background: var(--green-050); }
.topic-feature::before { margin-bottom: 12px; color: var(--gold-500); content: "重点内容"; font-size: 11px; font-weight: 800; letter-spacing: .08em; }
.topic-section--resources .topic-feature::before { content: "政策原文"; }
.topic-feature > .tag { align-self: flex-start; }
.topic-feature h4 { margin-top: 16px; font-size: 19px; line-height: 1.5; }
.topic-feature p { margin-top: 9px; color: var(--ink-500); font-size: 13px; line-height: 1.7; }
.topic-feature .text-link { margin-top: auto; padding-top: 12px; }
.topic-links { display: contents; }
.topic-links a { position: relative; display: flex; min-height: 244px; flex-direction: column; align-items: flex-start; justify-content: center; padding: 26px 46px 26px 24px; color: var(--ink-700); border-right: 1px solid var(--gray-100); font-size: 15px; font-weight: 700; line-height: 1.65; transition: color var(--ease), background var(--ease); }
.topic-links a::before { margin-bottom: 14px; color: var(--ink-500); content: "最新更新"; font-size: 11px; font-weight: 700; letter-spacing: .08em; }
.topic-section--resources .topic-links a::before { content: "政策文件 · 可下载"; }
.topic-links a:last-child { border-right: 0; }
.topic-links a::after { position: absolute; right: 22px; color: var(--green-700); content: "\2192"; font-family: var(--font-num); }
.topic-links a:hover { color: var(--green-700); background: var(--green-050); }

.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.filter-btn { min-height: 39px; padding: 7px 15px; color: var(--ink-700); background: var(--white); border: 1px solid var(--gray-200); border-radius: 999px; font-size: 13px; font-weight: 600; cursor: pointer; transition: all var(--ease); }
.filter-btn:hover, .filter-btn.is-active { color: var(--white); background: var(--green-700); border-color: var(--green-700); }
.article-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.article-card { display: flex; min-height: 286px; flex-direction: column; padding: 24px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-md); transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease); }
.article-card:hover { border-color: rgba(23,107,82,.42); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.article-card__meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--ink-500); font-size: 12px; }
.article-card h3 { margin-top: 20px; font-size: 19px; line-height: 1.5; }
.article-card p { margin-top: 10px; color: var(--ink-500); font-size: 14px; line-height: 1.75; }
.article-card .text-link { margin-top: auto; padding-top: 18px; }
.empty-state { padding: 42px; text-align: center; color: var(--ink-500); background: var(--white); border: 1px dashed var(--gray-200); border-radius: var(--r-md); }

/* Category and series templates */
.listing-hero { padding: 68px 0 58px; color: var(--white); background: var(--green-900); }
.listing-hero__inner { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(280px, .5fr); align-items: end; gap: 64px; }
.listing-hero h1 { max-width: 780px; font-size: clamp(40px, 5vw, 62px); line-height: 1.16; }
.listing-hero p { margin-top: 18px; color: rgba(255,255,255,.74); font-size: 17px; line-height: 1.85; }
.listing-stat { padding: 24px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); border-radius: var(--r-md); }
.listing-stat strong { display: block; color: var(--gold-400); font-family: var(--font-num); font-size: 34px; }
.listing-stat span { color: rgba(255,255,255,.72); font-size: 13px; }
.listing-tools { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.listing-tools .filter-bar { margin-bottom: 0; }
.listing-count { color: var(--ink-500); font-size: 13px; }
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 34px; }
.page-link { display: grid; width: 42px; height: 42px; place-items: center; color: var(--ink-700); background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-sm); font-size: 13px; font-weight: 700; }
.page-link.is-current, .page-link:hover { color: var(--white); background: var(--green-700); border-color: var(--green-700); }

.series-summary { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(270px, .55fr); gap: 28px; }
.series-summary__main, .series-summary__aside { padding: 32px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-lg); }
.series-summary__main h2 { font-size: 28px; }
.series-summary__main p { margin-top: 12px; color: var(--ink-500); }
.series-summary__meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.series-summary__aside { display: grid; align-content: center; gap: 6px; color: var(--ink-500); }
.series-summary__aside strong { color: var(--gold-500); font-family: var(--font-num); font-size: 42px; line-height: 1.1; }
.series-path { display: grid; gap: 12px; margin-top: 28px; }
.series-step { display: grid; grid-template-columns: 72px minmax(0, 1fr) auto; align-items: center; gap: 22px; min-height: 112px; padding: 22px 26px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-md); transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease); }
.series-step:hover { border-color: rgba(23,107,82,.42); box-shadow: var(--shadow-sm); transform: translateX(3px); }
.series-step__no { color: var(--gold-500); font-family: var(--font-num); font-size: 27px; font-weight: 800; }
.series-step h3 { font-size: 19px; line-height: 1.5; }
.series-step p { margin-top: 4px; color: var(--ink-500); font-size: 13px; }
.series-step > svg { width: 20px; color: var(--green-700); }

.series-nav { display: grid; margin-top: 48px !important; grid-template-columns: 1fr 1fr; gap: 12px; }
.series-nav a { display: flex; min-height: 112px; flex-direction: column; justify-content: center; padding: 20px 22px; color: var(--ink-700); background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-md); text-decoration: none; }
.series-nav a:last-child { text-align: right; }
.series-nav a:only-child { grid-column: 1 / -1; min-height: 92px; text-align: left; }
.series-nav small { color: var(--green-700); font-size: 12px; font-weight: 800; }
.series-nav strong { margin-top: 7px; font-size: 15px; line-height: 1.55; }

/* Article page */
.reading-progress { position: fixed; z-index: 100; top: 0; left: 0; width: 0; height: 3px; background: var(--gold-500); }
.article-hero { padding: 48px 0 56px; background: var(--white); border-bottom: 1px solid var(--gray-200); }
.article-hero__inner { max-width: 980px; margin-inline: auto; }
.article-hero h1 { max-width: 900px; margin-top: 18px; font-size: clamp(34px, 3.6vw, 48px); line-height: 1.27; letter-spacing: .005em; overflow-wrap: anywhere; text-wrap: balance; }
.article-hero__summary { max-width: 780px; margin-top: 20px; color: var(--ink-700); font-size: 17px; line-height: 1.85; }
.article-meta { display: flex; flex-wrap: wrap; gap: 12px 22px; margin-top: 28px; color: var(--ink-500); font-size: 13px; }
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-meta svg { width: 16px; height: 16px; color: var(--green-700); }

.article-shell { display: grid; grid-template-columns: 200px minmax(0, var(--reading)) 190px; justify-content: space-between; gap: 28px; padding: 54px 0 80px; }
.toc { position: sticky; top: 106px; align-self: start; }
.toc__title { color: var(--ink-900); font-size: 13px; font-weight: 800; }
.toc ol { margin-top: 14px; list-style: none; border-left: 1px solid var(--gray-200); }
.toc a { display: block; padding: 8px 0 8px 16px; color: var(--ink-500); font-size: 13px; line-height: 1.55; border-left: 2px solid transparent; transform: translateX(-1px); transition: color var(--ease), border-color var(--ease); }
.toc a:hover, .toc a.is-active { color: var(--green-700); border-left-color: var(--gold-500); }
.article-aside { position: sticky; top: 106px; align-self: start; }
.aside-card { padding: 20px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-md); }
.aside-card + .aside-card { margin-top: 12px; }
.aside-card__label { color: var(--green-700); font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.aside-card strong { display: block; margin-top: 10px; font-size: 15px; line-height: 1.55; }
.aside-card p { margin-top: 8px; color: var(--ink-500); font-size: 12px; line-height: 1.7; }

.article-body { min-width: 0; color: var(--ink-700); font-size: 17px; line-height: 1.95; }
.article-body > * + * { margin-top: 24px; }
.article-body h2 { scroll-margin-top: 106px; margin-top: 58px; padding-top: 10px; color: var(--ink-900); font-size: 30px; line-height: 1.35; }
.article-body h2::before { display: block; width: 42px; height: 3px; margin-bottom: 16px; content: ""; background: var(--gold-500); }
.article-body h3 { scroll-margin-top: 106px; margin-top: 38px; color: var(--ink-900); font-size: 21px; line-height: 1.45; }
.article-body p { text-align: justify; }
.article-body strong { color: var(--ink-900); }
.article-body a { color: var(--green-700); text-decoration: underline; text-underline-offset: 4px; }
.article-body ul, .article-body ol { padding-left: 1.25em; }
.article-body li + li { margin-top: 9px; }
.article-body img { display: block; max-width: 100%; height: auto; margin-inline: auto; border-radius: var(--r-md); }
.article-body figure { margin-inline: 0; }
.article-body figcaption { margin-top: 10px; color: var(--ink-500); font-size: 14px; text-align: center; }
.article-body table { display: block; width: 100%; overflow-x: auto; border-collapse: collapse; }
.article-body pre { margin: 24px 0; padding: 20px 22px; overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--warm); color: var(--ink); line-height: 1.8; white-space: pre-wrap; }
.article-body code { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: .92em; }
.article-body th, .article-body td { min-width: 120px; padding: 10px 12px; border: 1px solid var(--gray-200); text-align: left; }
.direct-answer { padding: 28px 30px; color: var(--ink-900); background: var(--green-050); border: 1px solid var(--green-100); border-left: 4px solid var(--green-700); border-radius: 0 var(--r-md) var(--r-md) 0; }
.direct-answer__label { display: flex; align-items: center; gap: 8px; color: var(--green-700); font-size: 13px; font-weight: 800; }
.direct-answer__label svg { width: 18px; height: 18px; }
.direct-answer p { margin-top: 12px; font-size: 17px; line-height: 1.85; text-align: left; }
.five-step { display: grid; margin: 30px 0; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.step-item { position: relative; min-height: 150px; padding: 18px 14px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-sm); }
.step-item:not(:last-child)::after { position: absolute; z-index: 2; top: 48%; right: -10px; color: var(--gold-500); content: "→"; font-family: var(--font-num); font-weight: 800; }
.step-item b { color: var(--gold-500); font-family: var(--font-num); font-size: 12px; letter-spacing: .1em; }
.step-item strong { display: block; margin-top: 13px; font-size: 15px; line-height: 1.5; }
.step-item span { display: block; margin-top: 7px; color: var(--ink-500); font-size: 12px; line-height: 1.55; }
.note-box { padding: 22px 24px; background: var(--gold-100); border-left: 3px solid var(--gold-500); border-radius: 0 var(--r-sm) var(--r-sm) 0; font-size: 15px; }
.data-table { overflow-x: auto; margin: 26px 0; border: 1px solid var(--gray-200); border-radius: var(--r-md); }
.data-table table { width: 100%; border-collapse: collapse; min-width: 620px; background: var(--white); font-size: 14px; }
.data-table th, .data-table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--gray-100); }
.data-table th { color: var(--green-800); background: var(--green-050); font-weight: 800; }
.data-table tr:last-child td { border-bottom: 0; }
.source-list { display: grid; gap: 10px; margin-top: 22px; padding: 0 !important; list-style: none; }
.source-item { padding: 18px 20px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-sm); }
.source-item strong { display: block; }
.source-item span { display: block; margin-top: 5px; color: var(--ink-500); font-size: 13px; }
.product-bridge { position: relative; overflow: hidden; display: grid; margin-top: 58px !important; grid-template-columns: 1fr auto; align-items: center; gap: 26px; padding: 32px; color: var(--white); background: var(--green-800); border-radius: var(--r-lg); }
.product-bridge::after { position: absolute; right: -48px; bottom: -70px; width: 210px; height: 210px; border: 1px solid rgba(212,178,102,.35); border-radius: 50%; content: ""; }
.product-bridge h3 { margin: 0; color: var(--white); font-size: 23px; }
.product-bridge p { max-width: 560px; margin-top: 8px; color: rgba(255,255,255,.72); font-size: 14px; text-align: left; }
.product-bridge .btn { position: relative; z-index: 1; }

.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.related-card { min-height: 180px; padding: 22px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-md); }
.related-card h3 { margin-top: 14px; font-size: 17px; line-height: 1.55; }
.related-card .text-link { margin-top: 12px; }

.final-cta { position: relative; overflow: hidden; padding: 62px 0; color: var(--white); background: var(--green-800); }
.final-cta::after { position: absolute; right: 6%; bottom: -145px; width: 360px; height: 360px; border: 1px solid rgba(212,178,102,.32); border-radius: 50%; content: ""; box-shadow: 0 0 0 48px rgba(255,255,255,.02); }
.final-cta__inner { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.final-cta h2 { font-size: clamp(28px, 3vw, 38px); }
.final-cta p { margin-top: 9px; color: rgba(255,255,255,.72); }
.final-cta__actions { display: flex; flex: 0 0 auto; gap: 10px; }

.site-footer { padding: 64px 0 26px; color: rgba(255,255,255,.7); background: var(--green-900); }
.footer-grid { display: grid; grid-template-columns: 1.45fr repeat(3, .75fr); gap: 46px; }
.footer-brand img { width: 156px; height: auto; object-fit: contain; }
.footer-about { max-width: 360px; margin-top: 16px; font-size: 13px; line-height: 1.8; }
.footer-contact { display: grid; gap: 8px; margin-top: 16px; font-size: 13px; }
.footer-contact a:hover { color: var(--white); }
.footer-col h3 { position: relative; padding-left: 15px; color: var(--white); font-size: 14px; }
.footer-col h3::before { position: absolute; top: .48em; left: 0; width: 5px; height: 5px; border-radius: 50%; content: ""; background: var(--gold-400); }
.footer-col a, .footer-link { display: flex; min-height: 36px; align-items: center; color: rgba(255,255,255,.64); background: transparent; border: 0; padding: 0; font-size: 13px; cursor: pointer; }
.footer-col a:hover, .footer-link:hover { color: var(--white); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 44px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); font-size: 12px; }
.footer-bottom-links { display: flex; gap: 18px; }

/* 全站快捷咨询：桌面侧栏，移动端底部紧凑入口 */
.contact-float {
  position: fixed;
  z-index: 72;
  right: 18px;
  bottom: 118px;
  display: grid;
  width: 92px;
  overflow: visible;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
}
.contact-float__item {
  position: relative;
  display: flex;
  min-height: 78px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 6px;
  color: var(--ink-700);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: 12px;
  line-height: 1.35;
  cursor: pointer;
}
.contact-float__item:last-child { border-bottom: 0; }
.contact-float__item:hover, .contact-float__item:focus-visible { color: var(--green-700); background: var(--green-050); }
.contact-float__item svg { width: 23px; height: 23px; color: var(--green-700); }
.contact-float__popover {
  position: absolute;
  z-index: 2;
  right: calc(100% + 12px);
  top: 50%;
  display: none;
  width: 190px;
  padding: 16px;
  color: var(--ink-900);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  text-align: center;
  transform: translateY(-50%);
}
.contact-float__item:hover .contact-float__popover,
.contact-float__item:focus .contact-float__popover,
.contact-float__item:focus-within .contact-float__popover { display: block; }
.contact-float__popover::after { position: absolute; top: 50%; right: -7px; width: 12px; height: 12px; content: ""; background: var(--white); border-top: 1px solid var(--gray-200); border-right: 1px solid var(--gray-200); transform: translateY(-50%) rotate(45deg); }
.contact-float__popover strong { display: block; font-size: 14px; line-height: 1.5; }
.contact-float__popover--phone { width: 224px; }
.contact-float__popover--phone strong { color: var(--green-700); font-family: var(--font-num); white-space: nowrap; }
.contact-float__popover--phone small { margin-top: 5px; }
.contact-float__popover img { width: 142px; height: 142px; margin: 10px auto 6px; padding: 4px; object-fit: contain; background: var(--white); border-radius: 8px; }
.contact-float__popover small { display: block; color: var(--ink-500); font-size: 12px; }

.modal {
  position: fixed;
  z-index: 200;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(15,73,56,.7);
  backdrop-filter: blur(8px);
}
.modal__panel { width: min(100%, 560px); max-height: calc(100vh - 48px); overflow-y: auto; padding: 28px; background: var(--white); border-radius: var(--r-lg); box-shadow: var(--shadow-lg); }
.modal__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.modal__head h2 { font-size: 25px; }
.modal__head p { margin-top: 6px; color: var(--ink-500); font-size: 13px; }
.modal__close { display: grid; width: 42px; height: 42px; flex: 0 0 auto; place-items: center; color: var(--ink-700); background: var(--warm-050); border: 1px solid var(--gray-200); border-radius: 50%; cursor: pointer; }
.modal__close svg { width: 19px; height: 19px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-top: 24px; }
.field { display: grid; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 700; }
.field input, .field select, .field textarea { width: 100%; min-height: 46px; padding: 10px 12px; color: var(--ink-900); background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-sm); }
.field textarea { min-height: 86px; resize: vertical; }
.sms-field { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; }
.sms-field .sms-button { width: auto; min-width: 112px; min-height: 46px; margin: 0; padding-inline: 14px; white-space: nowrap; }
.sms-field .sms-button:disabled { opacity: .55; cursor: not-allowed; }
.form-message { min-height: 22px; margin-top: 10px; color: var(--green-700); font-size: 13px; }
.form-honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; opacity: 0 !important; pointer-events: none !important; }
.modal .btn { width: 100%; margin-top: 8px; }
.form-notice { margin-top: 10px; color: var(--ink-500); font-size: 12px; line-height: 1.6; text-align: center; }
.form-notice a { color: var(--green-700); text-decoration: underline; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .62s ease, transform .62s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1120px) {
  .nav-links { display: none; position: absolute; top: 76px; right: 24px; left: 24px; flex-direction: column; align-items: stretch; margin: 0; padding: 12px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-md); box-shadow: var(--shadow-md); }
  .nav-links.is-open { display: flex; }
  .nav-links a { justify-content: center; }
  .menu-toggle { display: inline-flex; }
  .nav-actions { margin-left: auto; }
  .article-shell { grid-template-columns: 190px minmax(0, var(--reading)); justify-content: center; }
  .article-aside { display: none; }
  .contact-float { right: 12px; }
}

@media (max-width: 900px) {
  .section { padding: 68px 0; }
  .knowledge-hero__grid { grid-template-columns: 1fr; gap: 36px; padding: 52px 0 74px; }
  .hero-index { max-width: 520px; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .series-grid { grid-template-columns: 1fr; }
  .series-card { min-height: 230px; }
  .topic-section { grid-template-columns: 1fr; }
  .topic-section__head { min-height: 0; border-right: 0; border-bottom: 1px solid var(--gray-200); }
  .topic-section__head .text-link { margin-top: 18px; }
  .topic-content { grid-template-columns: 1.15fr .925fr .925fr; }
  .listing-hero__inner, .series-summary { grid-template-columns: 1fr; }
  .listing-stat { max-width: 360px; }
  .article-grid { grid-template-columns: repeat(2, 1fr); }
  .article-shell { grid-template-columns: minmax(0, var(--reading)); justify-content: center; padding-top: 34px; }
  .toc { position: static; padding: 18px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--r-md); }
  .toc ol { display: grid; grid-template-columns: 1fr 1fr; }
  .toc a { border-left: 0; transform: none; }
  .toc a:hover, .toc a.is-active { border-left-color: transparent; }
  .five-step { grid-template-columns: 1fr; }
  .step-item { min-height: auto; padding: 16px 18px; }
  .step-item:not(:last-child)::after { top: auto; right: 18px; bottom: -15px; content: "↓"; }
  .product-bridge { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  body { padding-bottom: 68px; }
  .container { width: min(100% - 32px, var(--container)); }
  .nav { min-height: 68px; gap: 10px; }
  .brand img { width: 122px; }
  .nav-links { top: 68px; right: 16px; left: 16px; }
  .login-link, .nav-actions > .btn { display: none; }
  .breadcrumb { min-height: 44px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
  .section { padding: 48px 0; }
  .section-head { align-items: flex-start; flex-direction: column; gap: 14px; margin-bottom: 24px; }
  .section-title { font-size: 28px; }
  .section-desc { font-size: 14px; }
  .knowledge-hero__grid { min-height: auto; padding: 40px 0 66px; }
  .knowledge-hero h1 { font-size: 39px; }
  .knowledge-hero__lead { margin-top: 16px; font-size: 16px; }
  .knowledge-search { flex-wrap: wrap; padding: 8px; }
  .knowledge-search .btn { width: 100%; }
  .hero-index { padding: 24px 20px; }
  .quick-questions { margin-top: -22px; }
  .quick-questions__inner { align-items: flex-start; flex-direction: column; }
  .category-grid, .article-grid { grid-template-columns: 1fr; }
  .category-card { min-height: 0; padding: 22px; }
  .category-card h3 { margin-top: 20px; }
  .series-card { min-height: 0; padding: 24px 22px; }
  .series-card h3 { max-width: 250px; font-size: 21px; }
  .topic-section__head { padding: 24px 22px; }
  .topic-section__head h3 { margin-top: 18px; font-size: 22px; }
  .topic-content { grid-template-columns: 1fr; }
  .topic-feature { min-height: 260px; padding: 24px 22px; border-right: 0; border-bottom: 1px solid var(--gray-200); }
  .topic-feature h4 { margin-top: 18px; font-size: 20px; }
  .topic-links a { min-height: 112px; padding: 20px 44px 20px 22px; border-right: 0; border-bottom: 1px solid var(--gray-100); }
  .topic-links a:last-child { border-bottom: 0; }
  .topic-links a::before { margin-bottom: 8px; }
  .listing-hero { padding: 48px 0 44px; }
  .listing-hero h1 { font-size: 38px; }
  .listing-tools { align-items: flex-start; flex-direction: column; }
  .pagination { gap: 8px; }
  .pagination__link { min-width: 76px; padding-inline: 12px; }
  .series-summary__main, .series-summary__aside { padding: 24px 22px; }
  .series-step { grid-template-columns: 52px minmax(0, 1fr) auto; gap: 10px; padding: 18px; }
  .series-step p { display: none; }
  .series-nav { grid-template-columns: 1fr; }
  .series-nav a:last-child { text-align: left; }
  .article-hero { padding: 38px 0 46px; }
  .article-hero h1 { font-size: 30px; line-height: 1.32; }
  .article-hero__summary { margin-top: 16px; font-size: 16px; }
  .article-meta { gap: 8px 14px; }
  .article-shell { padding-bottom: 54px; }
  .toc ol { grid-template-columns: 1fr; }
  .article-body { font-size: 16px; line-height: 1.9; }
  .article-body p { text-align: left; }
  .article-body h2 { margin-top: 45px; font-size: 26px; }
  .article-body h3 { font-size: 20px; }
  .direct-answer { padding: 22px 20px; }
  .product-bridge { padding: 26px 22px; }
  .related-grid { grid-template-columns: 1fr; }
  .final-cta { padding: 48px 0; }
  .final-cta__inner { align-items: flex-start; flex-direction: column; gap: 24px; }
  .final-cta__actions { width: 100%; flex-direction: column; }
  .final-cta__actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
  .contact-float { right: 12px; bottom: 10px; left: 12px; width: auto; grid-template-columns: repeat(3, 1fr); border-radius: 12px; }
  .contact-float__item { min-height: 54px; flex-direction: row; gap: 6px; padding: 8px 6px; border-right: 1px solid var(--gray-100); border-bottom: 0; font-size: 11px; }
  .contact-float__item:last-child { border-right: 0; }
  .contact-float__item svg { width: 19px; height: 19px; }
  .contact-float__popover { top: auto; right: 0; bottom: calc(100% + 12px); width: 180px; transform: none; }
  .contact-float__popover::after { top: auto; right: 26px; bottom: -7px; transform: rotate(135deg); }
  .contact-float__popover--phone { right: auto; left: 0; width: 224px; }
  .contact-float__popover--phone::after { right: auto; left: 26px; }
  .form-grid { grid-template-columns: 1fr; }
  .field--full { grid-column: auto; }
  .modal { padding: 14px; }
  .modal__panel { max-height: calc(100vh - 28px); padding: 22px 18px; }
}

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