/* =========================================================
   WKL — 乌克兰重建·全球共生合作平台
   共享样式表 (WKL 站点美化版)
   设计语言: 乌克兰国旗蓝黄主题 + 现代卡片化 UI
   ========================================================= */

/* ---------- 设计令牌 ---------- */
:root {
  /* 品牌色: 乌克兰蓝 + 金黄 */
  --blue-900: #062a6b;
  --blue-800: #0b3d91;
  --blue-700: #1450a8;
  --blue-600: #1d63d6;
  --blue-500: #2b7fff;
  --sky-400: #4f9bff;
  --gold-500: #f5b400;
  --gold-400: #ffc83d;
  --gold-300: #ffe08a;

  /* 中性色 */
  --ink: #0f172a;
  --ink-soft: #1e293b;
  --muted: #64748b;
  --line: #e6ebf3;
  --bg: #ffffff;
  --bg-soft: #f5f8fd;
  --bg-tint: #eef4ff;

  /* 状态色 */
  --green: #16a34a;
  --red: #e11d48;
  --amber: #f59e0b;

  /* 排版 */
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei",
    system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --maxw: 1200px;

  /* 圆角 / 阴影 */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-pill: 999px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 18px 48px rgba(11, 61, 145, 0.18);
  --shadow-gold: 0 12px 30px rgba(245, 180, 0, 0.28);

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
h1, h2, h3, h4 {
  line-height: 1.25;
  margin: 0 0 0.5em;
  font-weight: 800;
  letter-spacing: -0.01em;
}
p {
  margin: 0 0 1em;
}
ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
button {
  font-family: inherit;
  cursor: pointer;
}

/* ---------- 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}
.section {
  padding: 84px 0;
}
.section--soft {
  background: var(--bg-soft);
}
.section--tint {
  background: linear-gradient(180deg, var(--bg-tint), #fff);
}
.grid {
  display: grid;
  gap: 24px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* 区块标题 */
.section-head {
  text-align: center;
  max-width: 740px;
  margin: 0 auto 48px;
}
.section-head .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-600);
  background: var(--bg-tint);
  padding: 6px 14px;
  border-radius: var(--r-pill);
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(26px, 4vw, 38px);
  color: var(--ink);
}
.section-head p {
  color: var(--muted);
  font-size: 17px;
  margin: 0;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--r-pill);
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease),
    background 0.18s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--gold-400), var(--gold-500));
  color: #3a2a00;
  box-shadow: var(--shadow-gold);
}
.btn-primary:hover { box-shadow: 0 16px 38px rgba(245, 180, 0, 0.4); }
.btn-blue {
  background: linear-gradient(135deg, var(--blue-600), var(--blue-800));
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-blue:hover { box-shadow: var(--shadow-lg); }
.btn-ghost {
  background: #fff;
  color: var(--blue-700);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--blue-500); color: var(--blue-600); }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.brand .logo {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
  color: var(--gold-400);
  display: grid;
  place-items: center;
  font-size: 15px;
  font-weight: 900;
  box-shadow: var(--shadow-sm);
}
.brand .logo span { color: var(--gold-400); }
.brand small {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.02em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a {
  padding: 8px 12px;
  border-radius: var(--r-sm);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-soft);
  transition: background 0.16s, color 0.16s;
  white-space: nowrap;
}
.nav-links a:hover { background: var(--bg-tint); color: var(--blue-700); }
.nav-links a.active { color: var(--blue-700); background: var(--bg-tint); }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.lang-switch {
  display: flex;
  gap: 2px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  padding: 3px;
}
.lang-switch button {
  border: none;
  background: transparent;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  padding: 5px 11px;
  border-radius: var(--r-pill);
  transition: background 0.16s, color 0.16s;
}
.lang-switch button.active {
  background: #fff;
  color: var(--blue-700);
  box-shadow: var(--shadow-sm);
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: #fff;
  font-size: 20px;
  color: var(--blue-700);
}
@media (max-width: 1080px) {
  .nav-links {
    position: fixed;
    inset: 68px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 12px 20px 20px;
    gap: 2px;
    box-shadow: var(--shadow-md);
    transform: translateY(-130%);
    transition: transform 0.28s var(--ease);
    max-height: 80vh;
    overflow-y: auto;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 12px 14px; font-size: 16px; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(43, 127, 255, 0.25), transparent 60%),
    radial-gradient(900px 500px at 0% 110%, rgba(245, 180, 0, 0.18), transparent 55%),
    linear-gradient(160deg, var(--blue-900), var(--blue-700) 55%, var(--blue-600));
  color: #fff;
  padding: 92px 0 104px;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(700px 400px at 70% 20%, #000, transparent 70%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: var(--gold-300);
  padding: 7px 16px;
  border-radius: var(--r-pill);
  font-size: 13.5px;
  font-weight: 700;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(32px, 5.4vw, 56px);
  max-width: 760px;
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.hero h1 .hl { color: var(--gold-400); }
.hero .sub {
  font-size: clamp(16px, 2.2vw, 20px);
  color: rgba(255, 255, 255, 0.86);
  max-width: 620px;
  margin-top: 18px;
}
.hero .sub-en {
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-300);
  font-weight: 700;
  margin-bottom: 6px;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
  margin-top: 52px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}
.hero-stats .stat .num {
  font-size: 30px;
  font-weight: 900;
  color: #fff;
}
.hero-stats .stat .num span { color: var(--gold-400); }
.hero-stats .stat .label {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.78);
}

/* ---------- 卡片 ---------- */
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease),
    border-color 0.2s var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #cfe0ff;
}
.card .ico {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 24px;
  background: var(--bg-tint);
  margin-bottom: 16px;
}
.card h3 { font-size: 19px; }
.card p { color: var(--muted); margin: 0; font-size: 15px; }
.card .arrow {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--blue-600);
  font-weight: 700;
  font-size: 14.5px;
}

/* 编号步骤卡 */
.step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
}
.step .no {
  font-size: 44px;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--blue-600), var(--gold-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 10px;
}
.step h3 { font-size: 18px; }
.step p { color: var(--muted); font-size: 14.5px; margin: 0; }

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12.5px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background: var(--bg-tint);
  color: var(--blue-700);
}
.tag--gold { background: #fff6dc; color: #9a6b00; }
.tag--green { background: #e7f8ee; color: #11703a; }
.tag--red { background: #fdeaef; color: #b3123a; }
.tag--hot { background: var(--gold-400); color: #3a2a00; }

/* ---------- 三层架构 ---------- */
.tier {
  position: relative;
  border-radius: var(--r-lg);
  padding: 30px;
  color: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.tier h3 { color: #fff; }
.tier p { color: rgba(255, 255, 255, 0.85); }
.tier .price {
  display: inline-block;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.18);
  padding: 4px 12px;
  border-radius: var(--r-pill);
  font-size: 13px;
  margin-bottom: 14px;
}
.tier ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 8px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.92);
}
.tier ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--gold-300);
  font-weight: 900;
}
.tier--1 { background: linear-gradient(150deg, #1d63d6, #0b3d91); }
.tier--2 { background: linear-gradient(150deg, #2b7fff, #1450a8); }
.tier--3 { background: linear-gradient(150deg, #f5b400, #e09b00); color: #3a2a00; }
.tier--3 h3, .tier--3 p, .tier--3 ul li { color: #3a2a00; }
.tier--3 ul li::before { color: #0b3d91; }
.tier--3 .price { background: rgba(11, 61, 145, 0.14); color: #0b3d91; }

/* ---------- 服务网格 ---------- */
.svc {
  display: flex;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.svc:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.svc .ico {
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--bg-tint);
  display: grid;
  place-items: center;
  font-size: 22px;
}
.svc h3 { font-size: 16.5px; margin-bottom: 4px; }
.svc p { color: var(--muted); font-size: 14px; margin: 0 0 8px; }
.svc .meta {
  font-size: 13px;
  font-weight: 700;
  color: var(--blue-700);
}
.svc .lock {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--gold-500);
  margin-top: 8px;
}

/* ---------- 表单 ---------- */
.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 34px;
  box-shadow: var(--shadow-md);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }
.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 7px;
  color: var(--ink-soft);
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  font-size: 15px;
  font-family: inherit;
  background: #fff;
  color: var(--ink);
  transition: border-color 0.16s, box-shadow 0.16s;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(43, 127, 255, 0.16);
}
.field textarea { resize: vertical; min-height: 110px; }
.form-note {
  font-size: 13px;
  color: var(--muted);
  margin-top: 6px;
}
.form-ok {
  display: none;
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: var(--r-sm);
  background: #e7f8ee;
  color: #11703a;
  font-weight: 700;
  font-size: 14.5px;
}
.form-ok.show { display: block; }

/* ---------- 生态矩阵 ---------- */
.eco-card {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease),
    border-color 0.2s var(--ease);
}
.eco-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #cfe0ff;
}
.eco-card .em {
  font-size: 30px;
  margin-bottom: 12px;
}
.eco-card h3 { font-size: 18px; }
.eco-card .host {
  font-size: 13px;
  font-weight: 700;
  color: var(--blue-600);
  margin-bottom: 8px;
}
.eco-card p { color: var(--muted); font-size: 14px; margin: 0 0 12px; }

/* ---------- 资讯列表 ---------- */
.insight {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.insight:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.insight .thumb {
  height: 150px;
  background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
  position: relative;
  display: grid;
  place-items: center;
  color: var(--gold-300);
  font-size: 40px;
}
.insight .body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.insight .body h3 { font-size: 17px; margin: 0; }
.insight .body p { color: var(--muted); font-size: 14px; margin: 0; flex: 1; }
.insight .meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
}
.insight .read {
  color: var(--blue-600);
  font-weight: 700;
  font-size: 14px;
}
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 36px;
}
.filter-bar button {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-soft);
  font-weight: 700;
  font-size: 14px;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  transition: background 0.16s, color 0.16s, border-color 0.16s;
}
.filter-bar button.active,
.filter-bar button:hover {
  background: var(--blue-700);
  color: #fff;
  border-color: var(--blue-700);
}

/* ---------- 机械页: 需求公示板 ---------- */
.board {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.board-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  font-weight: 800;
}
.board-head .refresh {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--r-sm);
  padding: 6px 12px;
  font-weight: 700;
  font-size: 13px;
  color: var(--blue-700);
}
.board-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}
.board-item:last-child { border-bottom: none; }
.board-item .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: 0 0 auto;
}
.board-item .dot.urgent { background: var(--red); box-shadow: 0 0 0 4px rgba(225, 29, 72, 0.16); }
.board-item .dot.normal { background: var(--amber); box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.16); }
.board-item .info { flex: 1; min-width: 0; }
.board-item .info .t { font-weight: 700; font-size: 15px; }
.board-item .info .loc { font-size: 13px; color: var(--muted); }
.board-item .amt { font-weight: 800; color: var(--blue-700); white-space: nowrap; }

/* ---------- 数据条 ---------- */
.bigstat {
  text-align: center;
  padding: 16px;
}
.bigstat .num {
  font-size: clamp(34px, 5vw, 48px);
  font-weight: 900;
  background: linear-gradient(135deg, var(--blue-600), var(--gold-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}
.bigstat .label { color: var(--muted); font-size: 14.5px; margin-top: 8px; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--blue-900);
  color: rgba(255, 255, 255, 0.82);
  padding: 60px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 32px;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 14px;
}
.site-footer a { color: rgba(255, 255, 255, 0.78); font-size: 14.5px; display: block; padding: 5px 0; }
.site-footer a:hover { color: var(--gold-300); }
.site-footer .brand { color: #fff; margin-bottom: 14px; }
.site-footer .brand .logo { background: rgba(255,255,255,0.12); }
.site-footer .desc { font-size: 14.5px; max-width: 320px; }
.footer-bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.66);
}
.footer-bottom .links { display: flex; gap: 18px; flex-wrap: wrap; }

/* ---------- 滚动入场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- 回到顶部 ---------- */
.to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-800));
  color: #fff;
  font-size: 20px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 60;
}
.to-top.show { opacity: 1; pointer-events: auto; }
.to-top:hover { transform: translateY(-3px); }

/* ---------- 文章详情 ---------- */
.article-hero {
  background: linear-gradient(150deg, var(--blue-900), var(--blue-700));
  color: #fff;
  padding: 64px 0 56px;
}
.article-hero .crumb { font-size: 13.5px; color: var(--gold-300); margin-bottom: 14px; font-weight: 700; }
.article-hero h1 { font-size: clamp(26px, 4vw, 40px); max-width: 820px; }
.article-hero .meta { color: rgba(255,255,255,0.8); font-size: 14px; margin-top: 14px; }
.article-body {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 20px;
}
.article-body h2 { font-size: 24px; margin-top: 36px; color: var(--ink); }
.article-body h3 { font-size: 19px; margin-top: 28px; }
.article-body p { color: var(--ink-soft); font-size: 17px; }
.article-body blockquote {
  margin: 24px 0;
  padding: 16px 22px;
  border-left: 4px solid var(--gold-500);
  background: var(--bg-soft);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  color: var(--ink-soft);
  font-size: 16px;
}
.article-body ul.ticks li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
  color: var(--ink-soft);
}
.article-body ul.ticks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 900;
}

/* 实用小工具: 分隔 */
.divider {
  height: 1px;
  background: var(--line);
  margin: 0;
  border: 0;
}
.callout {
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue-600);
  background: var(--bg-soft);
  border-radius: var(--r-sm);
  padding: 18px 20px;
  margin: 22px 0;
}
.callout strong { color: var(--blue-700); }