/* ==========================================================================
   华探科技官网 · 样式
   版式沿用 geo.huatanzg.com：胶囊按钮、大圆角卡片、深色能力面板；颜色取自华探品牌标志（科技蓝、活力青、墨蓝）
   ========================================================================== */

:root {
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --bg-wash: #f2f5fa;
  --tint: #f3f7ff;
  --tint-2: #e9f1ff;

  --ink: #1f2635;
  --ink-strong: #0b1f4d;
  --text-2: #465066;
  --muted: #5b6477;
  --muted-2: #8791a3;
  --line: #e3e8f0;
  --line-soft: #edf1f7;

  /* 品牌色：取自华探标志（科技蓝 #1470FF、活力青 #00D2B4、深海蓝 #073FA3、墨蓝 #0B1F4D） */
  --brand: #1470ff;
  --brand-btn: #1266f1;
  --brand-hover: #0a55d1;
  --brand-from: #2f86ff;
  --brand-to: #1162f0;
  --brand-ink: #0a55d1;
  --brand-text: #0a4fc2;
  --brand-soft: #eaf2ff;
  --brand-line: #c3d9ff;
  --accent: #00d2b4;
  --accent-ink: #00917c;

  --dark: #0b1f4d;
  --dark-2: #0e2a66;
  --dark-line: rgba(255, 255, 255, .14);
  --dark-text: #b9c6e0;
  --dark-accent: #3ee6cc;

  --success: #1f7a52;

  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius: 16px;
  --radius-sm: 12px;

  --shadow-card: 0 1px 2px rgba(15, 35, 80, .04), 0 10px 28px rgba(15, 35, 80, .06);
  --shadow-hover: 0 22px 54px rgba(15, 45, 110, .12);
  --shadow-brand: 0 8px 18px rgba(20, 112, 255, .26);
  --ease: cubic-bezier(.2, .8, .2, 1);
  --max: 1240px;
  --header-h: 80px;

  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", "Noto Sans SC", system-ui, sans-serif;
  --font-num: "SF Pro Display", "DIN Alternate", "Helvetica Neue", Arial, var(--font);
}

/* ---------- 基础 ---------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  padding-top: var(--header-h);
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, video { display: block; max-width: 100%; }
img { height: auto; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--brand-ink); }

h1, h2, h3, h4 { margin: 0; color: var(--ink-strong); font-weight: 700; line-height: 1.38; letter-spacing: -.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; }
b, strong { font-weight: 700; }
small { font-size: 13px; }

:focus-visible { outline: 2px solid var(--brand-ink); outline-offset: 3px; border-radius: 6px; }

::selection { background: #cfe1ff; color: var(--ink-strong); }

.skip-link {
  position: fixed; left: 16px; top: -60px; z-index: 2000;
  padding: 10px 16px; border-radius: 10px;
  background: var(--ink-strong); color: #fff; font-size: 14px;
  transition: top .2s;
}
.skip-link:focus { top: 12px; color: #fff; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.container { width: min(100% - 48px, var(--max)); margin-inline: auto; }
.container--narrow { width: min(100% - 48px, 880px); margin-inline: auto; }

.icon { width: 20px; height: 20px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.icon--sm { width: 16px; height: 16px; }
.icon--lg { width: 26px; height: 26px; }

.num { font-family: var(--font-num); font-variant-numeric: tabular-nums; letter-spacing: -.02em; }

/* ---------- 按钮与链接 ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 11px 26px;
  border: 1px solid transparent; border-radius: 28px;
  font: inherit; font-size: 15px; font-weight: 600; line-height: 1.5;
  white-space: nowrap; cursor: pointer;
  transition: background-color .2s, border-color .2s, color .2s, box-shadow .2s, transform .2s var(--ease);
}
.btn .icon { width: 17px; height: 17px; }
.btn-primary { background: var(--brand-btn); border-color: var(--brand-btn); color: #fff; box-shadow: var(--shadow-brand); }
.btn-primary:hover { background: var(--brand-hover); border-color: var(--brand-hover); color: #fff; transform: translateY(-1px); }
.btn-secondary { background: #fff; border-color: #dde3ec; color: var(--ink); }
.btn-secondary:hover { border-color: var(--brand); color: var(--brand-ink); }
.btn-dark { background: var(--ink-strong); color: #fff; }
.btn-dark:hover { background: #000; color: #fff; }
.btn-ghost-light { background: transparent; border-color: rgba(255, 255, 255, .28); color: #fff; }
.btn-ghost-light:hover { border-color: var(--dark-accent); color: var(--dark-accent); }
.btn-sm { min-height: 40px; padding: 8px 20px; font-size: 14px; }
.btn-block { width: 100%; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--brand-text); font-size: 15px; font-weight: 600;
}
.link-arrow .icon { width: 16px; height: 16px; transition: transform .2s var(--ease); }
.link-arrow:hover { color: var(--brand-hover); }
.link-arrow:hover .icon { transform: translateX(3px); }

.text-link { color: var(--brand-text); text-decoration: underline; text-decoration-color: var(--brand-line); text-underline-offset: 3px; }
.text-link:hover { color: var(--brand-hover); text-decoration-color: currentColor; }

/* ---------- 页头（与 geo.huatanzg.com 同一套结构） ---------- */

.site-header {
  position: fixed; inset: 0 0 auto; z-index: 1000;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  color: #2b3344;
}
.header-bar {
  width: min(100% - 56px, 1280px); height: var(--header-h); margin: auto;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}

/* 标志：华探横版组合（图形标 + 华探科技 + HUATAN），SVG 矢量，文字已转曲 */
.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand-logo { display: block; width: auto; height: 46px; }

.site-nav { display: flex; align-items: stretch; gap: 26px; height: 100%; }
.nav-link {
  position: relative; display: flex; align-items: center; height: 100%; padding: 0 2px;
  color: #465066; font-size: 15px; font-weight: 500; white-space: nowrap;
}
.nav-link:hover, .nav-link[aria-current] { color: var(--brand-ink); }
.nav-link[aria-current]::after {
  content: ''; position: absolute; left: 2px; right: 2px; bottom: 0; height: 2px;
  border-radius: 2px; background: var(--brand);
}
.nav-link--mobile { display: none; }

.nav-group { position: relative; display: flex; align-items: stretch; }
.nav-group > .nav-link::before {
  content: ''; order: 2; width: 7px; height: 7px; margin: -3px 0 0 8px;
  border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg); opacity: .6;
}
.nav-menu {
  position: absolute; top: calc(100% - 8px); left: 50%; z-index: 10;
  width: 340px; padding: 10px;
  background: #fff; border: 1px solid var(--line); border-radius: 18px;
  box-shadow: 0 24px 50px rgba(16, 42, 97, .12);
  opacity: 0; visibility: hidden; transform: translate(-50%, 8px);
  transition: opacity .2s, transform .2s var(--ease), visibility .2s;
}
.nav-group:hover .nav-menu, .nav-group:focus-within .nav-menu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.nav-menu-item { display: flex; align-items: center; gap: 14px; padding: 12px; border-radius: 12px; line-height: 1.5; }
.nav-menu-item:hover { background: var(--tint); color: var(--ink); }
.nav-menu-item b { display: block; font-size: 15px; color: var(--ink-strong); }
.nav-menu-item small { display: block; color: var(--muted); font-size: 13px; }

.nav-menu-icon, .product-badge {
  display: grid; place-items: center; flex-shrink: 0;
  width: 42px; height: 42px; border-radius: 12px;
  font-family: var(--font-num); font-size: 12px; font-weight: 800; letter-spacing: 0; color: #fff;
}
.nav-menu-icon--geo, .product-badge--geo { background: linear-gradient(140deg, var(--brand-from), var(--brand-to)); }
.nav-menu-icon--info, .product-badge--info { background: linear-gradient(140deg, #19d9bd, #00a88f); font-family: var(--font); font-size: 13px; }

.header-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.header-login { color: #465066; font-size: 14px; font-weight: 500; white-space: nowrap; }
.header-login:hover, .header-login[aria-current] { color: var(--brand-ink); }
.nav-toggle {
  display: none; min-height: 38px; padding: 7px 14px;
  border: 1px solid #dde3ec; border-radius: 10px; background: #fff;
  color: #4a5263; font: inherit; font-size: 13px; cursor: pointer;
}

/* ---------- 通用区块 ---------- */

.section { padding: 104px 0; }
.section--tight { padding: 72px 0; }
.section--soft { background: var(--bg-soft); }
.section--tint { background: var(--tint); }
.section--line { border-top: 1px solid var(--line); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--brand-ink); font-size: 14px; font-weight: 700; letter-spacing: .02em;
}
.eyebrow--dot::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }

.section-head { max-width: 760px; margin-bottom: 52px; }
.section-head h2 { margin-top: 14px; font-size: clamp(28px, 3.1vw, 38px); }
.section-head p { margin-top: 16px; color: var(--muted); font-size: 17px; line-height: 1.85; }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--split { max-width: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; }
.section-head--split > div { max-width: 720px; }

.lead { color: var(--muted); font-size: 18px; line-height: 1.9; }

/* ---------- 首页首屏 ---------- */

.hero {
  position: relative; overflow: hidden;
  padding: 72px 0 0;
  background:
    radial-gradient(900px 480px at 82% 18%, rgba(20, 112, 255, .10), transparent 62%),
    radial-gradient(560px 340px at 96% 62%, rgba(0, 210, 180, .10), transparent 70%),
    linear-gradient(180deg, var(--bg-wash), #fff 78%);
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.hero-copy h1 { margin-top: 20px; font-size: clamp(34px, 4.1vw, 50px); line-height: 1.34; font-weight: 800; letter-spacing: -.02em; }
.hero-copy .lead { margin-top: 24px; max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 30px; color: var(--muted-2); font-size: 14px; }
.hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
.hero-meta .icon { width: 16px; height: 16px; color: var(--brand); }

/* 首屏右侧：信息发布平台“最新发布”看板（实时读取已审核的信息） */
.hero-board {
  position: relative;
  padding: 26px 26px 20px; border-radius: 28px;
  background: #fff; border: 1px solid var(--line);
  box-shadow: 0 30px 70px rgba(15, 45, 110, .12);
}
.board-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.board-head h2 { display: flex; align-items: center; gap: 10px; font-size: 18px; }
.board-live { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(0, 210, 180, .18); }
.board-head .link-arrow { font-size: 14px; }
.board-cats { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.board-cats a { padding: 3px 12px; border-radius: 999px; background: var(--brand-soft); color: var(--brand-ink); font-size: 13px; line-height: 1.8; }
.board-cats a:hover { background: var(--brand); color: #fff; }
.board-list { display: grid; margin-top: 10px; list-style: none; }
.board-item a { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 2px 12px; padding: 13px 2px; border-bottom: 1px solid var(--line-soft); }
.board-item:last-child a { border-bottom: 0; }
.board-item .tag { padding: 1px 9px; font-size: 12px; }
.board-item b { overflow: hidden; color: var(--ink-strong); font-size: 15px; font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
.board-item a:hover b { color: var(--brand-ink); }
.board-item time { color: var(--muted-2); font-family: var(--font-num); font-size: 12px; }
.board-item small { grid-column: 2 / -1; overflow: hidden; color: var(--muted-2); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.board-item .skeleton { height: 46px; margin: 8px 0; border-radius: 12px; }
.board-empty { padding: 34px 12px; color: var(--muted); font-size: 14px; text-align: center; }
.board-empty .btn { margin-top: 16px; }
.board-foot { display: flex; align-items: center; gap: 8px; margin-top: 12px; padding-top: 14px; border-top: 1px dashed var(--line); color: var(--muted-2); font-size: 12px; line-height: 1.6; }
.board-foot .icon { width: 15px; height: 15px; color: var(--accent-ink); }

.hv-card-head { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 700; color: var(--ink-strong); line-height: 1.4; }
.hv-card-head small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; }
.hv-bars { display: grid; gap: 9px; margin-top: 14px; }
.hv-bar { display: grid; grid-template-columns: 58px 1fr 34px; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); line-height: 1.2; }
.hv-bar i { position: relative; height: 7px; border-radius: 7px; background: #e9eef6; overflow: hidden; }
.hv-bar i::after { content: ''; position: absolute; inset: 0 auto 0 0; width: var(--w); border-radius: inherit; background: linear-gradient(90deg, var(--brand-from), var(--accent)); }
.hv-bar b { font-family: var(--font-num); color: var(--ink); font-size: 12px; text-align: right; }
.hv-note { margin-top: 12px; padding-top: 10px; border-top: 1px dashed #dfe6f0; color: var(--muted-2); font-size: 11px; line-height: 1.5; }

.facts-strip {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 64px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.fact { padding: 26px 28px; }
.fact + .fact { border-left: 1px solid var(--line); }
.fact b { display: block; font-family: var(--font-num); font-size: 34px; line-height: 1.2; color: var(--ink-strong); letter-spacing: -.02em; }
.fact b small { margin-left: 3px; font-family: var(--font); font-size: 15px; font-weight: 600; color: var(--ink); }
.fact span { display: block; margin-top: 6px; color: var(--muted); font-size: 14px; line-height: 1.6; }

/* ---------- 手机样机 ---------- */

.phone {
  position: relative; margin: 0;
  padding: 9px; border-radius: 44px;
  background: linear-gradient(145deg, #2b2d33, #0f1013);
  box-shadow: 0 40px 70px rgba(16, 30, 60, .2), 0 0 0 1px rgba(255, 255, 255, .06) inset;
}
.phone img { width: 100%; aspect-ratio: 390 / 844; object-fit: cover; object-position: top; border-radius: 36px; background: #edf0f5; }
.phone::before {
  content: ''; position: absolute; left: 50%; top: 17px; z-index: 2;
  width: 30%; height: 20px; border-radius: 20px; background: #0c0d10; transform: translateX(-50%);
}
.phone figcaption { position: absolute; left: 0; right: 0; bottom: -34px; color: var(--muted-2); font-size: 12px; text-align: center; }

/* ---------- 卡片 ---------- */

.grid { display: grid; gap: 24px; }
.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)); }

.card {
  position: relative; display: flex; flex-direction: column;
  padding: 32px; border-radius: var(--radius-lg);
  background: #fff; border: 1px solid var(--line);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.card--hover:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: #d6e2f3; }
.card--soft { background: var(--bg-soft); border-color: transparent; }
.card--tint { background: var(--tint); border-color: #dbe7fb; }
.card h3 { font-size: 21px; line-height: 1.45; }
.card p { margin-top: 12px; color: var(--muted); font-size: 15px; line-height: 1.85; }
.card .link-arrow { margin-top: auto; padding-top: 22px; }

.card-icon {
  display: grid; place-items: center; width: 50px; height: 50px; margin-bottom: 22px;
  border-radius: 15px; background: var(--brand-soft); color: var(--brand-ink);
}
.card-icon .icon { width: 24px; height: 24px; }
.card-index { margin-bottom: 18px; color: var(--brand-ink); font-family: var(--font-num); font-size: 14px; font-weight: 700; letter-spacing: .08em; }

.check-list { display: grid; gap: 10px; margin-top: 18px; list-style: none; }
.check-list li { position: relative; padding-left: 28px; color: var(--text-2); font-size: 15px; line-height: 1.75; }
.check-list li::before {
  content: ''; position: absolute; left: 0; top: 5px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--brand-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230a55d1' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center / 12px no-repeat;
}

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; list-style: none; }
.tag { display: inline-flex; align-items: center; padding: 4px 12px; border-radius: 999px; background: var(--bg-soft); color: var(--text-2); font-size: 13px; line-height: 1.6; }
.tag--brand { background: var(--brand-soft); color: var(--brand-ink); }

/* ---------- 产品矩阵 ---------- */

.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.product-card {
  position: relative; display: flex; flex-direction: column; overflow: hidden;
  border-radius: var(--radius-xl); background: #fff; border: 1px solid var(--line);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.product-card-media { position: relative; height: 230px; overflow: hidden; background: var(--bg-soft); }
.product-card-media--geo { background: radial-gradient(420px 220px at 70% 20%, rgba(20, 112, 255, .20), transparent 70%), linear-gradient(180deg, #f5f8fe, #e9f0fb); }
.product-card-media--info { background: radial-gradient(420px 220px at 30% 10%, rgba(0, 210, 180, .20), transparent 70%), linear-gradient(180deg, #f3fbfa, #e6f4f8); }
.product-card-media img { position: absolute; }
.product-card-body { display: flex; flex: 1; flex-direction: column; padding: 28px 30px 30px; }
.product-card-top { display: flex; align-items: center; gap: 12px; }
.product-card-top h3 { font-size: 22px; line-height: 1.3; }
.product-card-top small { display: block; color: var(--muted); font-size: 13px; font-weight: 400; }
.product-card-body > p { margin-top: 16px; color: var(--muted); font-size: 15px; line-height: 1.85; }
.product-card-body .check-list { margin-bottom: 22px; }
.product-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 20px; border-top: 1px solid var(--line-soft); }
.product-card-foot small { color: var(--muted-2); font-size: 12px; line-height: 1.5; }
.product-kind { position: absolute; left: 20px; top: 18px; z-index: 2; padding: 4px 12px; border-radius: 999px; background: rgba(255, 255, 255, .92); color: var(--ink); font-size: 12px; font-weight: 600; line-height: 1.6; }

/* 产品卡片内的示意 */
/* 信息发布平台示意：发布流程四步 */
.pm-flow { position: absolute; inset: 30px 28px auto; display: grid; gap: 10px; list-style: none; }
.pm-flow li { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-radius: 14px; background: #fff; border: 1px solid #dcebf0; box-shadow: 0 10px 24px rgba(16, 42, 97, .06); color: var(--ink-strong); font-size: 14px; font-weight: 600; line-height: 1.4; }
.pm-flow li small { margin-left: auto; color: var(--muted-2); font-size: 12px; font-weight: 400; }
.pm-flow .icon { width: 18px; height: 18px; color: var(--accent-ink); }
.pm-geo { position: absolute; inset: 34px 28px auto; padding: 18px; border-radius: 18px; background: #fff; border: 1px solid #e3e9f2; box-shadow: 0 18px 40px rgba(16, 42, 97, .12); }
.pm-geo .hv-bars { margin-top: 10px; }

/* ---------- 深色能力面板 ---------- */

.dark-panel {
  position: relative; overflow: hidden;
  padding: 64px; border-radius: 34px;
  background:
    radial-gradient(640px 360px at 88% 0%, rgba(20, 112, 255, .30), transparent 65%),
    radial-gradient(520px 320px at 0% 100%, rgba(0, 210, 180, .12), transparent 60%),
    var(--dark);
  color: #fff;
}
.dark-panel h2, .dark-panel h3 { color: #fff; }
.dark-panel .eyebrow { color: var(--dark-accent); }
.dark-panel .section-head p { color: var(--dark-text); }
.dark-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.dark-card {
  padding: 28px; border-radius: 22px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .015));
  border: 1px solid var(--dark-line);
}
.dark-card .card-index { color: var(--dark-accent); }
.dark-card h3 { font-size: 19px; }
.dark-card p { margin-top: 10px; color: var(--dark-text); font-size: 14px; line-height: 1.85; }
.dark-card .icon { color: var(--dark-accent); width: 26px; height: 26px; margin-bottom: 18px; }

/* 能力链路 */
.chain { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin-top: 8px; }
.chain-item { position: relative; padding: 26px 24px 26px 0; }
.chain-item + .chain-item { padding-left: 24px; border-left: 1px dashed var(--dark-line); }
.chain-item b { display: block; color: var(--dark-accent); font-size: 13px; letter-spacing: .08em; }
.chain-item h3 { margin-top: 10px; font-size: 20px; }
.chain-item p { margin-top: 8px; color: var(--dark-text); font-size: 14px; line-height: 1.8; }

/* ---------- 流程步骤 ---------- */

.steps { display: grid; grid-template-columns: repeat(var(--cols, 5), minmax(0, 1fr)); gap: 16px; list-style: none; counter-reset: step; }
.step { position: relative; padding: 24px 22px; border-radius: 20px; background: #fff; border: 1px solid var(--line); counter-increment: step; }
.step::before { content: counter(step, decimal-leading-zero); display: block; color: var(--brand-ink); font-family: var(--font-num); font-size: 14px; font-weight: 800; letter-spacing: .06em; }
.step h3 { margin-top: 12px; font-size: 18px; }
.step p { margin-top: 8px; color: var(--muted); font-size: 14px; line-height: 1.8; }
.steps--plain .step { background: transparent; }

/* ---------- 时间线 ---------- */

.timeline { position: relative; display: grid; gap: 0; list-style: none; }
.timeline::before { content: ''; position: absolute; left: 118px; top: 10px; bottom: 10px; width: 1px; background: var(--line); }
.timeline li { position: relative; display: grid; grid-template-columns: 118px 1fr; gap: 36px; padding: 0 0 36px; }
.timeline li::before { content: ''; position: absolute; left: 112px; top: 9px; width: 13px; height: 13px; border-radius: 50%; background: #fff; border: 3px solid var(--brand); }
.timeline time { color: var(--brand-ink); font-family: var(--font-num); font-size: 16px; font-weight: 800; line-height: 1.8; }
.timeline h3 { font-size: 19px; }
.timeline p { margin-top: 6px; color: var(--muted); font-size: 15px; }

/* ---------- 统计与数据口径 ---------- */

.stat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.stat { padding: 28px; border-radius: 22px; background: #fff; border: 1px solid var(--line); }
.stat b { display: block; font-family: var(--font-num); font-size: 38px; line-height: 1.15; color: var(--ink-strong); letter-spacing: -.02em; }
.stat b small { margin-left: 4px; font-family: var(--font); font-size: 16px; }
.stat span { display: block; margin-top: 10px; color: var(--ink); font-size: 15px; font-weight: 600; }
.stat p { margin-top: 6px; color: var(--muted); font-size: 13px; line-height: 1.7; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.7; }
.table th, .table td { padding: 16px 20px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line-soft); }
.table th { background: var(--bg-soft); color: var(--ink-strong); font-size: 14px; font-weight: 700; white-space: nowrap; }
.table tr:last-child td { border-bottom: 0; }
.table td:first-child { color: var(--ink-strong); font-weight: 600; white-space: nowrap; }
.table .muted { color: var(--muted); }

.footnote { margin-top: 18px; color: var(--muted-2); font-size: 13px; line-height: 1.8; }

/* ---------- 提示框 ---------- */

.notice {
  display: flex; gap: 14px; padding: 20px 24px; border-radius: 18px;
  background: var(--tint); border: 1px solid #d8e5fb; color: var(--text-2); font-size: 15px; line-height: 1.85;
}
.notice .icon { margin-top: 3px; color: var(--brand-ink); }
.notice b { color: var(--ink-strong); }
.notice--plain { background: var(--bg-soft); border-color: var(--line); }

/* ---------- 内页首屏 ---------- */

.page-hero {
  position: relative; overflow: hidden;
  padding: 76px 0 72px;
  background:
    radial-gradient(760px 380px at 88% 0%, rgba(20, 112, 255, .10), transparent 64%),
    linear-gradient(180deg, var(--bg-wash), #fff);
  border-bottom: 1px solid var(--line-soft);
}
.page-hero h1 { margin-top: 18px; max-width: 900px; font-size: clamp(30px, 3.7vw, 46px); line-height: 1.35; font-weight: 800; letter-spacing: -.02em; }
.page-hero .lead { margin-top: 20px; max-width: 760px; }
.page-hero .hero-actions { margin-top: 30px; }
.page-hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 56px; align-items: center; }

.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: var(--muted-2); font-size: 13px; list-style: none; }
.breadcrumb a:hover { color: var(--brand-ink); }
.breadcrumb li + li::before { content: '/'; margin-right: 8px; color: #b6c0cf; }

/* ---------- 产品页 ---------- */

.product-hero-visual { position: relative; display: flex; justify-content: center; }
.product-hero-visual .phone { width: 270px; }
.phone-pair { position: relative; display: flex; justify-content: center; align-items: flex-end; gap: 0; padding-bottom: 36px; }
.phone-pair .phone { width: 238px; }
.phone-pair .phone:first-child { transform: translate(24px, 26px) rotate(-5deg); z-index: 1; }
.phone-pair .phone:last-child { transform: translate(-24px, 0) rotate(4deg); z-index: 2; }

.hero-art { width: min(100%, 520px); border-radius: 30px; mix-blend-mode: multiply; }

.feature-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 72px; align-items: center; }
.feature-row + .feature-row { margin-top: 96px; }
.feature-row--flip .feature-media { order: 2; }
.feature-media { display: flex; justify-content: center; }
.feature-media .phone { width: 280px; }
.feature-copy h3 { margin-top: 14px; font-size: clamp(24px, 2.4vw, 30px); }
.feature-copy > p { margin-top: 16px; color: var(--muted); font-size: 16px; line-height: 1.9; }

.gallery { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; padding-bottom: 36px; }
.gallery .phone { padding: 7px; border-radius: 34px; }
.gallery .phone img { border-radius: 28px; }
.gallery .phone::before { top: 13px; height: 15px; }

.media-frame { overflow: hidden; border-radius: 26px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow-card); }
.media-frame img { width: 100%; }

.operator-note { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; margin-top: 22px; color: var(--muted); font-size: 14px; }
.operator-note b { color: var(--ink); font-weight: 600; }

/* ---------- 收费 ---------- */

.plan-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; align-items: stretch; }
.plan-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.plan {
  position: relative; display: flex; flex-direction: column;
  padding: 32px 30px; border-radius: 26px; background: #fff; border: 1px solid var(--line);
}
.plan--featured { border-color: var(--brand); box-shadow: 0 24px 50px rgba(20, 112, 255, .14); }
.plan-flag { position: absolute; top: -13px; left: 30px; padding: 3px 12px; border-radius: 999px; background: var(--brand); color: #fff; font-size: 12px; font-weight: 700; line-height: 1.7; }
.plan h3 { font-size: 20px; }
.plan-desc { margin-top: 6px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.plan-price { display: flex; align-items: baseline; gap: 4px; margin-top: 22px; color: var(--ink-strong); }
.plan-price em { font-style: normal; font-size: 20px; font-weight: 700; }
.plan-price b { font-family: var(--font-num); font-size: 42px; line-height: 1.1; letter-spacing: -.02em; }
.plan-price span { margin-left: 6px; color: var(--muted); font-size: 14px; }
.plan-price--text b { font-family: var(--font); font-size: 26px; }
.plan .check-list { margin-top: 22px; }
.plan .btn { margin-top: auto; }
.plan .check-list { margin-bottom: 28px; }
.plan .plan-foot { margin-top: 28px; }
.plan-foot { color: var(--muted-2); font-size: 13px; line-height: 1.7; }

/* ---------- 文档（协议、政策） ---------- */

.doc-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 64px; align-items: start; }
.doc-toc { position: sticky; top: calc(var(--header-h) + 28px); max-height: calc(100vh - var(--header-h) - 56px); overflow: auto; padding-right: 6px; }
.doc-toc b { display: block; margin-bottom: 12px; color: var(--ink-strong); font-size: 14px; }
.doc-toc ol { display: grid; gap: 2px; list-style: none; border-left: 1px solid var(--line); }
.doc-toc a { display: block; margin-left: -1px; padding: 6px 0 6px 16px; border-left: 2px solid transparent; color: var(--muted); font-size: 14px; line-height: 1.6; }
.doc-toc a:hover { color: var(--brand-ink); }
.doc-toc a.is-active { border-left-color: var(--brand); color: var(--brand-ink); font-weight: 600; }

.doc { max-width: 820px; color: var(--text-2); font-size: 16px; line-height: 1.95; }
.doc-meta { display: flex; flex-wrap: wrap; gap: 6px 24px; padding: 18px 22px; margin-bottom: 36px; border-radius: 16px; background: var(--bg-soft); color: var(--muted); font-size: 14px; line-height: 1.7; }
.doc-meta b { color: var(--ink); font-weight: 600; }
.doc h2 { margin: 52px 0 18px; padding-top: 4px; font-size: 24px; line-height: 1.45; color: var(--ink-strong); }
.doc h2:first-of-type { margin-top: 0; }
.doc h3 { margin: 30px 0 12px; font-size: 18px; color: var(--ink-strong); }
.doc p { margin: 0 0 14px; }
.doc ul, .doc ol { margin: 0 0 16px; padding-left: 1.4em; }
.doc li { margin: 6px 0; }
.doc li::marker { color: var(--brand-ink); }
.doc strong { color: var(--ink-strong); }
.doc a { color: var(--brand-text); text-decoration: underline; text-decoration-color: var(--brand-line); text-underline-offset: 3px; }
.doc a:hover { color: var(--brand-hover); }
.doc .table-wrap { margin: 8px 0 20px; }
.doc .table { font-size: 14px; }
.doc .notice { margin: 8px 0 22px; }
.doc-foot { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }

/* ---------- 联系与账户 ---------- */

.contact-grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); gap: 32px; align-items: start; }
.contact-list { display: grid; gap: 14px; list-style: none; }
.contact-item { display: flex; gap: 16px; padding: 22px 24px; border-radius: 20px; background: #fff; border: 1px solid var(--line); }
.contact-item .card-icon { width: 44px; height: 44px; margin: 0; border-radius: 13px; }
.contact-item .card-icon .icon { width: 21px; height: 21px; }
.contact-item div > span { display: block; color: var(--muted); font-size: 13px; line-height: 1.6; }
.contact-item div > b, .contact-item div > a { display: block; margin-top: 2px; color: var(--ink-strong); font-size: 17px; font-weight: 600; line-height: 1.6; word-break: break-all; }
.contact-item div > a:hover { color: var(--brand-ink); }
.contact-item div > small { display: block; margin-top: 2px; color: var(--muted-2); font-size: 13px; line-height: 1.6; }

.form-card { padding: 36px; border-radius: 26px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-card); }
.form-card h2 { font-size: 24px; }
.form-card > p { margin-top: 8px; color: var(--muted); font-size: 14px; line-height: 1.8; }
.form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 26px; }
.field { display: grid; gap: 8px; }
.field--full { grid-column: 1 / -1; }
.field > label, .field > legend { color: var(--ink); font-size: 14px; font-weight: 600; }
.field > label em, .field > legend em { margin-left: 2px; color: #d4502a; font-style: normal; }
.field input:not([type="checkbox"]), .field select, .field textarea {
  width: 100%; min-height: 48px; padding: 11px 14px;
  border: 1px solid #dde3ec; border-radius: 12px; background: #fff;
  color: var(--ink); font: inherit; font-size: 15px; line-height: 1.6;
  transition: border-color .2s, box-shadow .2s;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:not([type="checkbox"]):focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px rgba(20, 112, 255, .16); }
fieldset.field { min-width: 0; margin: 0; padding: 0; border: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span { display: inline-flex; align-items: center; min-height: 38px; padding: 6px 16px; border: 1px solid #dde3ec; border-radius: 999px; color: var(--text-2); font-size: 14px; cursor: pointer; transition: all .2s; }
.chip input:checked + span { border-color: var(--brand); background: var(--brand-soft); color: var(--brand-ink); font-weight: 600; }
.chip input:focus-visible + span { outline: 2px solid var(--brand-ink); outline-offset: 2px; }
.form-agree { grid-column: 1 / -1; display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font-size: 13px; line-height: 1.7; }
.form-agree input { width: 16px; height: 16px; margin-top: 3px; accent-color: var(--brand); }
.form-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.form-status { color: var(--success); font-size: 14px; }
.form-status.is-error { color: #c0392b; }

.entry-card { display: flex; flex-direction: column; padding: 32px; border-radius: 26px; background: #fff; border: 1px solid var(--line); }
.entry-card .product-card-top { margin-bottom: 18px; }
.entry-card p { color: var(--muted); font-size: 15px; line-height: 1.85; }
.entry-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: auto; padding-top: 26px; }
.entry-meta { display: grid; gap: 8px; margin-top: 18px; padding: 16px 18px; border-radius: 14px; background: var(--bg-soft); color: var(--muted); font-size: 13px; line-height: 1.7; list-style: none; }
.entry-meta b { color: var(--ink); font-weight: 600; }

/* ---------- 页尾号召 ---------- */

.cta-card {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 40px; align-items: center;
  padding: 56px 60px; border-radius: 34px;
  background: radial-gradient(520px 300px at 100% 0%, rgba(20, 112, 255, .16), transparent 65%), var(--tint-2);
  border: 1px solid #cfe0fb;
}
.cta-card h2 { margin-top: 14px; font-size: clamp(28px, 3vw, 38px); }
.cta-card p { margin-top: 14px; color: var(--muted); font-size: 16px; }
.cta-card .hero-actions { margin-top: 28px; }
.cta-contact { display: grid; gap: 12px; list-style: none; }
.cta-contact li { display: flex; align-items: center; gap: 12px; padding: 14px 18px; border-radius: 16px; background: rgba(255, 255, 255, .72); color: var(--ink); font-size: 15px; line-height: 1.5; }
.cta-contact .icon { color: var(--brand-ink); }
.cta-contact small { display: block; color: var(--muted); font-size: 12px; }

/* ---------- 页脚 ---------- */

.site-footer { margin-top: 0; padding: 72px 0 36px; background: var(--bg-soft); border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; line-height: 1.8; }
.footer-top { display: grid; grid-template-columns: minmax(0, 1.9fr) repeat(4, minmax(0, 1fr)); gap: 40px; }
.footer-brand p { margin-top: 18px; max-width: 400px; font-size: 14px; line-height: 1.9; }
.footer-contact { display: grid; gap: 6px; margin-top: 20px; list-style: none; }
.footer-contact li { display: flex; gap: 8px; align-items: flex-start; }
.footer-contact .icon { width: 16px; height: 16px; margin-top: 4px; color: var(--brand-ink); }
.footer-col h2 { margin-bottom: 14px; color: var(--ink-strong); font-size: 15px; letter-spacing: 0; }
.footer-col ul { display: grid; gap: 8px; list-style: none; }
.footer-col a:hover { color: var(--brand-ink); }
.footer-bottom { display: grid; gap: 10px; margin-top: 56px; padding-top: 28px; border-top: 1px solid #dfe5ee; font-size: 13px; line-height: 1.8; }
.footer-legal { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 18px; }
.footer-legal a { display: inline-flex; align-items: center; gap: 6px; }
.footer-legal a:hover { color: var(--brand-ink); }
.footer-legal img { width: 16px; height: 16px; }
.footer-legal .todo { color: #c0392b; font-weight: 600; }
.footer-note { color: var(--muted-2); font-size: 12px; }

/* ---------- 404 ---------- */

.error-page { display: grid; place-items: center; min-height: calc(100vh - var(--header-h) - 200px); padding: 96px 0; text-align: center; }
.error-code { font-family: var(--font-num); font-size: clamp(88px, 14vw, 160px); font-weight: 800; line-height: 1; letter-spacing: -.04em; background: linear-gradient(140deg, var(--brand-from), var(--brand-to)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- 动效 ---------- */

.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }
.js .reveal[data-delay="1"] { transition-delay: .08s; }
.js .reveal[data-delay="2"] { transition-delay: .16s; }
.js .reveal[data-delay="3"] { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ---------- 响应式 ---------- */

@media (max-width: 1200px) {
  .site-nav { gap: 18px; }
  .nav-link { font-size: 14px; }
  .header-bar { width: calc(100% - 40px); gap: 18px; }
  .footer-top { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 1080px) {
  :root { --header-h: 68px; }
  .header-bar { width: calc(100% - 32px); gap: 12px; }
  .brand-logo { height: 38px; }
  .header-login { display: none; }
  .header-actions { gap: 8px; }
  .header-actions .btn-sm { min-height: 38px; padding: 7px 14px; font-size: 13px; }
  .nav-toggle { display: block; }
  .site-nav {
    display: none; position: absolute; top: calc(var(--header-h) - 1px); left: 0; right: 0;
    height: auto; max-height: calc(100dvh - var(--header-h)); overflow: auto;
    padding: 8px 18px 24px; background: #fff;
    border-bottom: 1px solid var(--line); box-shadow: 0 20px 35px rgba(16, 42, 97, .07);
  }
  .site-header.is-open .site-nav { display: block; }
  .nav-link { height: 52px; padding: 0 8px; font-size: 16px; border-bottom: 1px solid #e7ecf3; }
  .nav-link[aria-current]::after { display: none; }
  .nav-link--mobile { display: flex; }
  .nav-group { display: block; }
  .nav-group > .nav-link::before { display: none; }
  .nav-menu { position: static; width: auto; padding: 6px 0 10px; border: 0; border-radius: 0; box-shadow: none; opacity: 1; visibility: visible; transform: none; border-bottom: 1px solid #e7ecf3; }
  .nav-menu-item { padding: 10px 8px; }
  .nav-menu-icon { width: 36px; height: 36px; border-radius: 10px; }

  .hero-grid, .page-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-board { max-width: 640px; width: 100%; margin: 0 auto; }
  .dark-grid, .chain { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chain-item:nth-child(3) { padding-left: 0; border-left: 0; }
  .grid-4, .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plan-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(min(var(--cols, 5), 3), minmax(0, 1fr)); }
  .feature-row { gap: 48px; }
  .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 620px; margin-inline: auto; }
  .doc-layout { grid-template-columns: 1fr; gap: 28px; }
  .doc-toc { position: static; max-height: none; padding: 18px 20px; border-radius: 16px; background: var(--bg-soft); }
  .doc-toc ol { grid-template-columns: repeat(2, minmax(0, 1fr)); border-left: 0; gap: 0 16px; }
  .doc-toc a { padding-left: 0; border-left: 0; }
  .contact-grid { grid-template-columns: 1fr; }
  .cta-card { grid-template-columns: 1fr; padding: 44px; }
  .dark-panel { padding: 48px 36px; }
}

@media (max-width: 860px) {
  .section { padding: 76px 0; }
  .section-head { margin-bottom: 40px; }
  .section-head--split { display: block; }
  .section-head--split .link-arrow { margin-top: 18px; }
  .grid-3, .product-grid, .plan-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .facts-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fact:nth-child(3) { border-left: 0; }
  .fact:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .feature-row { grid-template-columns: 1fr; }
  .feature-row--flip .feature-media { order: 0; }
  .feature-row + .feature-row { margin-top: 72px; }
  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .container, .container--narrow { width: calc(100% - 32px); }
  .section { padding: 64px 0; }
  .hero { padding-top: 44px; }
  .hero-copy h1 { font-size: 32px; }
  .lead { font-size: 16px; }
  .hero-actions .btn { flex: 1 1 auto; }
  .hero-board { padding: 20px 18px 16px; border-radius: 22px; }
  .hv-bar { grid-template-columns: 48px 1fr 30px; }
  .board-item a { grid-template-columns: auto minmax(0, 1fr); }
  .board-item time { display: none; }
  .fact { padding: 20px 16px; }
  .fact b { font-size: 28px; }
  .dark-grid, .chain, .grid-4, .stat-grid, .plan-grid--4 { grid-template-columns: 1fr; }
  .chain-item, .chain-item + .chain-item { padding: 20px 0; border-left: 0; border-top: 1px dashed var(--dark-line); }
  .chain-item:first-child { border-top: 0; }
  .steps { grid-template-columns: 1fr; }
  .card, .entry-card, .form-card { padding: 26px 22px; }
  .product-card-body { padding: 24px 22px 26px; }
  .dark-panel { padding: 40px 22px; border-radius: 26px; }
  .cta-card { padding: 34px 22px; border-radius: 26px; }
  .page-hero { padding: 48px 0 52px; }
  .timeline::before { left: 7px; }
  .timeline li { grid-template-columns: 1fr; gap: 4px; padding-left: 32px; }
  .timeline li::before { left: 1px; }
  .form { grid-template-columns: 1fr; }
  .doc-toc ol { grid-template-columns: 1fr; }
  .doc h2 { font-size: 21px; }
  .gallery { gap: 16px; }
  .phone-pair .phone { width: 180px; }
  .product-hero-visual .phone, .feature-media .phone { width: 240px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .table th, .table td { padding: 12px 14px; }
}

/* ---------- 补充 ---------- */

.breadcrumb + .eyebrow { margin-top: 18px; }
.product-card-top h2 { font-size: clamp(24px, 2.4vw, 30px); line-height: 1.3; }
.feature-copy .product-card-top + p { margin-top: 20px; }
.feature-copy .notice { margin-top: 22px; }
.media-frame--sm { width: 100%; max-width: 480px; }
.subhead { margin: 64px 0 24px; font-size: 24px; }
.grid + .notice, .table-wrap + .notice { margin-top: 28px; }
.page-hero .notice { margin-top: 24px; }
.card > .media-frame:first-child { margin-bottom: 24px; }
.dark-panel .footnote { margin-top: 28px; color: var(--dark-text); }
.dark-panel .text-link { color: var(--dark-accent); text-decoration-color: rgba(62, 230, 204, .45); }
.dark-panel .text-link:hover { color: #fff; }
.grid--start { align-items: start; }
.subhead--tight { margin: 14px 0 20px; font-size: clamp(24px, 2.6vw, 32px); }
.doc--wide { max-width: none; }
.card .eyebrow + .table-wrap { margin-top: 18px; }
.license-figure { margin: 18px 0 0; }
.entry-title { font-size: 22px; line-height: 1.3; }
.lead--sm { font-size: 16px; }
.contact-list--spaced { margin-top: 18px; }
.steps + .notice, .grid--start + .notice { margin-top: 28px; }
.hero-actions--center { justify-content: center; }
.plan-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 880px; }
@media (max-width: 860px) { .plan-grid--2 { grid-template-columns: 1fr; } }

/* ==========================================================================
   信息发布平台
   ========================================================================== */

[hidden] { display: none !important; }
.hp-field { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.auth-tabs { margin-bottom: 4px; }
.auth-tabs .tab { flex: 1; }
.auth-tabs .tab.is-active,
.auth-tabs .tab.is-active:hover { border-color: var(--brand); background: var(--brand); color: #fff; }
.breadcrumb + .info-layout, .breadcrumb ~ .form-card, .breadcrumb ~ .empty-state { margin-top: 22px; }
.dialog-actions--spaced { margin-top: 22px; }
.form-status.is-error { color: #b3261e; }
.field-label em { margin-left: 2px; color: #d4502a; font-style: normal; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; letter-spacing: .02em; }

.page-hero--compact { padding: 52px 0 48px; }
.page-hero--compact h1 { font-size: clamp(28px, 3.2vw, 40px); }
.info-hero { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; }
.info-hero .hero-actions { margin-top: 0; flex-shrink: 0; }

.info-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 32px; align-items: start; }
.info-aside { display: grid; gap: 18px; position: sticky; top: calc(var(--header-h) + 24px); }
.info-aside .card { padding: 24px; }
.info-aside h3 { font-size: 17px; }
.info-aside .check-list { margin-top: 14px; }
.info-aside .check-list li { font-size: 14px; }
.info-aside .link-arrow { margin-top: 16px; padding-top: 0; font-size: 14px; }
.info-aside p { margin-top: 8px; color: var(--muted); font-size: 14px; line-height: 1.8; }
.cat-list { display: grid; gap: 12px; margin-top: 14px; list-style: none; }
.cat-list li { font-size: 13px; line-height: 1.7; color: var(--muted); }
.cat-list b { display: block; color: var(--ink-strong); font-size: 14px; }

.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.tab {
  min-height: 38px; padding: 6px 18px; border: 1px solid #dde3ec; border-radius: 999px;
  background: #fff; color: var(--text-2); font: inherit; font-size: 14px; cursor: pointer; transition: all .2s;
}
.tab:hover { border-color: var(--brand); color: var(--brand-ink); }
.tab.is-active { border-color: var(--brand); background: var(--brand-soft); color: var(--brand-ink); font-weight: 600; }
.tab .count { margin-left: 6px; padding: 0 7px; border-radius: 999px; background: var(--brand); color: #fff; font-size: 12px; font-weight: 700; }

.post-list { display: grid; gap: 14px; }
.post-card {
  display: flex; gap: 20px; padding: 20px; border-radius: 20px; background: #fff; border: 1px solid var(--line);
  transition: border-color .2s, box-shadow .25s var(--ease), transform .25s var(--ease);
}
.post-card:hover { border-color: #d6e2f3; box-shadow: var(--shadow-card); transform: translateY(-2px); color: inherit; }
.post-thumb { width: 150px; height: 112px; flex-shrink: 0; overflow: hidden; border-radius: 14px; background: var(--bg-soft); }
.post-thumb img { width: 100%; height: 100%; object-fit: cover; }
.post-body { min-width: 0; flex: 1; display: flex; flex-direction: column; }
.post-body h3 { font-size: 18px; line-height: 1.5; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.post-body p { margin-top: 6px; color: var(--muted); font-size: 14px; line-height: 1.75; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 14px; margin-bottom: 6px; color: var(--muted-2); font-size: 13px; line-height: 1.6; }
.post-foot { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-top: auto; padding-top: 10px; color: var(--muted-2); font-size: 13px; }
.post-foot b { color: var(--text-2); font-weight: 600; }
.verified-mark { display: inline-flex; align-items: center; gap: 2px; margin-left: 6px; color: #17693f; font-size: 12px; font-weight: 700; white-space: nowrap; }
.verified-mark .icon { width: 13px; height: 13px; }
.post-meta .verified-mark { margin-left: 0; }
.form-sub .verified-mark { margin-left: 8px; }

.badge { display: inline-flex; align-items: center; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; line-height: 1.7; white-space: nowrap; }
.badge--pending { background: #fff4db; color: #8a5a00; }
.badge--approved { background: #e6f5ec; color: #17693f; }
.badge--rejected { background: #fdecea; color: #b3261e; }
.badge--offline { background: #eceff4; color: #5b6272; }

.pager { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 28px; color: var(--muted); font-size: 14px; }
.pager:empty { display: none; }
.pager .btn { min-height: 38px; padding: 6px 18px; font-size: 14px; }

.empty-state { padding: 56px 24px; border-radius: 22px; background: #fff; border: 1px dashed #dde3ec; text-align: center; }
.empty-state h3 { font-size: 18px; }
.empty-state p { margin-top: 8px; color: var(--muted); font-size: 14px; }
.empty-state .btn { margin-top: 20px; }

.skeleton { border-radius: 20px; background: linear-gradient(90deg, #eef1f6 25%, #f7f9fc 50%, #eef1f6 75%); background-size: 200% 100%; animation: shimmer 1.2s linear infinite; }
.skeleton--card { height: 152px; }
.skeleton--block { height: 420px; }
@keyframes shimmer { to { background-position: -200% 0; } }

/* 详情 */
.post-detail { padding: 36px; border-radius: 26px; background: #fff; border: 1px solid var(--line); }
.post-detail h1 { font-size: clamp(24px, 2.6vw, 32px); line-height: 1.45; }
.post-detail .post-meta { margin: 14px 0 0; }
.post-detail-body { margin-top: 26px; padding-top: 26px; border-top: 1px solid var(--line-soft); color: var(--text-2); font-size: 16px; line-height: 1.95; white-space: pre-wrap; word-break: break-word; }
.gallery-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 24px; }
.gallery-grid a { display: block; overflow: hidden; border-radius: 16px; background: var(--bg-soft); aspect-ratio: 4 / 3; }
.gallery-grid img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s var(--ease); }
.gallery-grid a:hover img { transform: scale(1.03); }
.contact-box { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-top: 26px; padding: 18px 20px; border-radius: 16px; background: var(--tint); border: 1px solid #d8e5fb; font-size: 15px; }
.contact-box b { color: var(--ink-strong); }
.post-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line-soft); }
.post-disclaimer { flex: 1; min-width: 240px; color: var(--muted-2); font-size: 13px; line-height: 1.8; }
.btn-text { display: inline-flex; align-items: center; gap: 6px; padding: 6px 4px; border: 0; background: none; color: var(--muted); font: inherit; font-size: 14px; cursor: pointer; }
.btn-text:hover { color: #b3261e; }
.btn-text .icon { width: 16px; height: 16px; }
.owner-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin-bottom: 22px; padding: 14px 18px; border-radius: 14px; background: var(--bg-soft); font-size: 14px; }
.owner-bar .btn { min-height: 34px; padding: 5px 14px; font-size: 13px; }

/* 表单：发布、登录 */
.form-card h1 { font-size: clamp(24px, 2.6vw, 30px); }
.form-sub { margin-top: 8px; color: var(--muted); font-size: 14px; line-height: 1.8; }
.field-label { color: var(--ink); font-size: 14px; font-weight: 600; }
.field-hint { color: var(--muted-2); font-size: 12px; line-height: 1.6; }
.choice-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 8px; }
.choice { position: relative; display: block; cursor: pointer; }
.choice input { position: absolute; opacity: 0; pointer-events: none; }
.choice span { display: block; height: 100%; padding: 12px 16px; border: 1px solid #dde3ec; border-radius: 14px; transition: all .2s; }
.choice b { display: block; color: var(--ink-strong); font-size: 15px; }
.choice small { display: block; color: var(--muted); font-size: 12px; line-height: 1.6; }
.choice input:checked + span { border-color: var(--brand); background: var(--brand-soft); box-shadow: 0 0 0 1px var(--brand) inset; }
.choice input:focus-visible + span { outline: 2px solid var(--brand-ink); outline-offset: 2px; }

.upload-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin-top: 8px; }
.upload-item, .upload-add { position: relative; aspect-ratio: 1; overflow: hidden; border-radius: 14px; }
.upload-item { background: var(--bg-soft); }
.upload-item img { width: 100%; height: 100%; object-fit: cover; }
.upload-item button { position: absolute; right: 6px; top: 6px; width: 28px; height: 28px; border: 0; border-radius: 50%; background: rgba(20, 20, 25, .7); color: #fff; font-size: 16px; line-height: 1; cursor: pointer; }
.upload-add { display: grid; place-items: center; align-content: center; gap: 6px; border: 1px dashed #c9d3e1; color: var(--muted); font-size: 13px; cursor: pointer; transition: all .2s; }
.upload-add:hover { border-color: var(--brand); color: var(--brand-ink); }
.upload-add .icon { width: 24px; height: 24px; }
.upload-add.is-busy { pointer-events: none; opacity: .6; }
.upload-add input { position: absolute; width: 1px; height: 1px; opacity: 0; }

.auth-wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 440px); gap: 56px; align-items: center; padding: 24px 0; }
.auth-intro h1 { margin-top: 14px; font-size: clamp(28px, 3.2vw, 40px); line-height: 1.4; }
.auth-intro .check-list { margin-top: 24px; }
.auth-intro .notice { margin-top: 28px; }

.result-card { text-align: center; }
.result-card .card-icon { margin: 0 auto 18px; width: 64px; height: 64px; border-radius: 50%; background: #e6f5ec; color: #17693f; }
.result-card .card-icon .icon { width: 30px; height: 30px; }
.result-card .hero-actions { justify-content: center; }
.result-card--notice .card-icon { background: var(--brand-soft); color: var(--brand-ink); }

/* 我的账号 */
.account-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; padding: 28px 32px; border-radius: 26px; background: var(--tint); border: 1px solid #d8e5fb; }
.account-head .hero-actions { margin-top: 0; }
.account-id { display: flex; align-items: center; gap: 16px; }
.avatar { display: grid; place-items: center; width: 56px; height: 56px; flex-shrink: 0; border-radius: 50%; background: linear-gradient(140deg, var(--brand-from), var(--brand-to)); color: #fff; font-size: 22px; font-weight: 700; }
.account-id h1 { font-size: 22px; }
.account-id p { color: var(--muted); font-size: 14px; }
.account-grid {
  display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 24px; margin-top: 24px; align-items: start;
  grid-template-areas: "verify posts" "profile posts" "password posts"; grid-template-rows: auto auto 1fr;
}
.account-grid .card { padding: 28px; }
.account-grid .card h2 { font-size: 19px; }
.account-grid .form { grid-template-columns: 1fr; margin-top: 18px; }
.account-verify { grid-area: verify; }
.account-posts { grid-area: posts; }
.account-profile { grid-area: profile; }
.account-password { grid-area: password; }

/* 主体认证 */
.verify-intro { margin-top: 10px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.verify-note { margin-top: 12px; padding: 8px 12px; border-radius: 10px; background: #fdecea; color: #8c1d18; font-size: 13px; line-height: 1.7; }
.verify-box { margin-top: 14px; }
.verify-state { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; color: var(--muted-2); font-size: 13px; }
.verify-box dl { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px 14px; margin-top: 14px; font-size: 14px; line-height: 1.6; }
.verify-box dt { color: var(--muted); }
.verify-box dd { color: var(--ink-strong); font-weight: 600; word-break: break-all; }
.verify-box p { margin-top: 12px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.verify-license { display: block; margin-top: 14px; overflow: hidden; border-radius: 12px; border: 1px solid var(--line); background: var(--bg-soft); }
.verify-license img { width: 100%; max-height: 220px; object-fit: contain; }
.license-upload { grid-template-columns: 1fr; }
.license-upload .upload-add, .license-upload .upload-item { aspect-ratio: 16 / 10; }
.license-upload .upload-item img { object-fit: contain; }
.account-head .badge { vertical-align: 1px; }
.my-post { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 16px; padding: 16px 0; border-bottom: 1px solid var(--line-soft); }
.my-post:last-child { border-bottom: 0; }
.my-post h3 { font-size: 16px; line-height: 1.5; }
.my-post h3 a:hover { color: var(--brand-ink); }
.my-post .post-meta { margin: 4px 0 0; }
.my-post-note { grid-column: 1 / -1; padding: 8px 12px; border-radius: 10px; background: #fdecea; color: #8c1d18; font-size: 13px; line-height: 1.7; }
.my-post-actions { display: flex; align-items: flex-start; gap: 6px; }
.my-post-actions .btn { min-height: 32px; padding: 4px 12px; font-size: 13px; }
.danger-zone { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-top: 24px; padding: 22px 28px; border-radius: 20px; border: 1px solid #f3d4d0; background: #fffafa; font-size: 14px; color: var(--muted); }
.danger-zone b { color: var(--ink-strong); }
.btn-danger { background: #fff; border-color: #f0c2bd; color: #b3261e; }
.btn-danger:hover { background: #b3261e; border-color: #b3261e; color: #fff; }

/* 对话框与提示 */
.dialog { width: min(100% - 32px, 480px); padding: 0; border: 0; border-radius: 22px; box-shadow: 0 30px 80px rgba(20, 15, 10, .25); color: var(--ink); }
.dialog::backdrop { background: rgba(20, 18, 15, .45); }
.dialog form { padding: 28px; }
.dialog h2 { font-size: 20px; }
.dialog p { margin-top: 6px; color: var(--muted); font-size: 14px; }
.dialog .form { grid-template-columns: 1fr; margin-top: 18px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; }
.dialog-actions .btn { min-height: 42px; padding: 8px 20px; }
.toast { position: fixed; left: 50%; bottom: 32px; z-index: 3000; max-width: calc(100% - 32px); padding: 12px 20px; border-radius: 14px; background: var(--ink-strong); color: #fff; font-size: 14px; box-shadow: 0 16px 40px rgba(0, 0, 0, .2); transform: translate(-50%, 20px); opacity: 0; transition: all .25s var(--ease); pointer-events: none; }
.toast.is-show { transform: translate(-50%, 0); opacity: 1; }
.toast.is-error { background: #b3261e; }

/* 首页信息发布入口 */
.info-promo { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 32px; align-items: stretch; }
.info-promo .grid { margin-top: 28px; }
.info-promo .card { padding: 22px; }
.info-promo .card h3 { font-size: 17px; }
.info-promo .card p { margin-top: 6px; font-size: 14px; }
.info-steps { display: grid; gap: 12px; margin-top: 20px; list-style: none; counter-reset: s; }
.info-steps li { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 14px; background: #fff; border: 1px solid var(--line); font-size: 15px; line-height: 1.6; counter-increment: s; }
.info-steps li::before { content: counter(s); display: grid; place-items: center; width: 28px; height: 28px; flex-shrink: 0; border-radius: 50%; background: var(--brand-soft); color: var(--brand-ink); font-weight: 800; font-size: 13px; }
.info-steps small { display: block; color: var(--muted); font-size: 13px; }

/* 审核后台 */
.page-admin .site-footer .footer-top { display: none; }
.page-admin .site-footer .footer-bottom { margin-top: 0; padding-top: 0; border-top: 0; }
.admin-login { max-width: 420px; margin: 40px auto; }
.admin-login .form { grid-template-columns: 1fr; }
.admin-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.admin-head h1 { font-size: 26px; }
.admin-head .btn { min-height: 36px; padding: 6px 16px; font-size: 13px; }
.admin-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin: 22px 0; }
.admin-stat { padding: 18px 20px; border-radius: 18px; background: #fff; border: 1px solid var(--line); }
.admin-stat b { display: block; font-family: var(--font-num); font-size: 28px; line-height: 1.2; }
.admin-stat span { color: var(--muted); font-size: 13px; }
.admin-item { padding: 22px 24px; border-radius: 20px; background: #fff; border: 1px solid var(--line); }
.admin-item + .admin-item { margin-top: 14px; }
.admin-item h3 { font-size: 17px; line-height: 1.5; }
.admin-item-head { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 12px; }
.admin-item-body { margin-top: 12px; padding: 14px 16px; border-radius: 12px; background: var(--bg-soft); color: var(--text-2); font-size: 14px; line-height: 1.85; white-space: pre-wrap; word-break: break-word; }
.admin-kv { display: flex; flex-wrap: wrap; gap: 4px 18px; margin-top: 10px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.admin-kv b { color: var(--ink); font-weight: 600; }
.admin-flag { display: inline-block; margin-top: 10px; padding: 4px 10px; border-radius: 8px; background: #fff4db; color: #8a5a00; font-size: 13px; }
.admin-thumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.admin-thumbs a { width: 96px; height: 72px; overflow: hidden; border-radius: 10px; background: var(--bg-soft); }
.admin-thumbs img { width: 100%; height: 100%; object-fit: cover; }
.admin-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.admin-actions .btn { min-height: 36px; padding: 6px 16px; font-size: 13px; }
.admin-toolbar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.admin-toolbar input { min-height: 40px; padding: 8px 12px; border: 1px solid #dde3ec; border-radius: 10px; font: inherit; font-size: 14px; }
.admin-toolbar .btn { min-height: 40px; padding: 6px 18px; font-size: 14px; }
.admin-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 13px; line-height: 1.7; }
.admin-table th, .admin-table td { padding: 10px 12px; border-bottom: 1px solid var(--line-soft); text-align: left; vertical-align: top; }
.admin-table th { background: var(--bg-soft); font-weight: 700; white-space: nowrap; }
.admin-table .btn { min-height: 30px; padding: 3px 12px; font-size: 12px; }
.admin-license { display: inline-block; margin-top: 12px; overflow: hidden; border-radius: 12px; border: 1px solid var(--line); background: var(--bg-soft); }
.admin-license img { display: block; max-width: min(100%, 440px); max-height: 320px; object-fit: contain; }
.admin-hint { margin-top: 10px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.admin-subtabs { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 4px; margin-bottom: 16px; padding: 4px; border-radius: 12px; background: var(--bg-soft); font-size: 13px; }
.admin-subtabs span { padding: 0 8px 0 6px; color: var(--muted-2); }
.admin-subtabs button { min-height: 30px; padding: 3px 14px; border: 0; border-radius: 9px; background: none; color: var(--text-2); font: inherit; cursor: pointer; }
.admin-subtabs button:hover { color: var(--brand-ink); }
.admin-subtabs button.is-active { background: #fff; color: var(--brand-ink); font-weight: 700; box-shadow: 0 1px 3px rgba(20, 15, 10, .1); }
.btn-text--inline { margin-left: 6px; padding: 0 2px; color: var(--brand-ink); font-size: 13px; }
.btn-text--inline:hover { color: var(--brand); }

@media (max-width: 1080px) {
  .info-layout, .account-grid { grid-template-columns: 1fr; }
  .account-grid { grid-template-areas: "verify" "posts" "profile" "password"; grid-template-rows: auto; }
  .info-aside { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .auth-wrap, .info-promo { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 640px) {
  .info-hero { display: block; }
  .info-hero .hero-actions { margin-top: 24px; }
  .info-aside { grid-template-columns: 1fr; }
  .post-card { gap: 14px; padding: 16px; }
  .post-thumb { width: 96px; height: 80px; border-radius: 12px; }
  .post-body h3 { font-size: 16px; white-space: normal; }
  .post-body p { -webkit-line-clamp: 1; }
  .post-detail { padding: 24px 20px; }
  .gallery-grid { grid-template-columns: 1fr; }
  .choice-grid { grid-template-columns: 1fr; }
  .upload-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .account-head { padding: 22px 20px; }
  .my-post { grid-template-columns: 1fr; }
  .danger-zone { padding: 20px; }
  .admin-item { padding: 18px; }
}

/* ==========================================================================
   常见问题
   ========================================================================== */

.faq-layout { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 56px; align-items: start; }
.faq-nav { position: sticky; top: calc(var(--header-h) + 28px); display: grid; gap: 4px; }
.faq-nav a { padding: 8px 14px; border-radius: 12px; color: var(--muted); font-size: 15px; font-weight: 600; }
.faq-nav a:hover { background: var(--brand-soft); color: var(--brand-ink); }
.faq-groups { display: grid; gap: 56px; }
.faq-group h2 { margin-bottom: 20px; font-size: 24px; }
.faq-item { padding: 24px 26px; border-radius: 20px; background: #fff; border: 1px solid var(--line); }
.faq-item + .faq-item { margin-top: 14px; }
.faq-item h3 { display: flex; gap: 10px; font-size: 18px; line-height: 1.5; }
.faq-item h3::before { content: '问'; flex-shrink: 0; display: grid; place-items: center; width: 26px; height: 26px; margin-top: 1px; border-radius: 8px; background: var(--brand-soft); color: var(--brand-ink); font-size: 13px; font-weight: 800; }
.faq-a { margin-top: 10px; padding-left: 36px; color: var(--text-2); font-size: 15px; line-height: 1.9; }
.faq-a p + p { margin-top: 8px; }

/* 产品页：信息发布平台示意 */
.pm-frame { width: 100%; height: auto; padding: 30px 28px; }
.pm-frame .pm-flow { position: static; }

@media (max-width: 860px) {
  .faq-layout { grid-template-columns: 1fr; gap: 24px; }
  .faq-nav { position: static; display: flex; flex-wrap: wrap; gap: 8px; }
  .faq-nav a { border: 1px solid var(--line); background: #fff; }
}
@media (max-width: 640px) {
  .faq-item { padding: 20px 18px; }
  .faq-a { padding-left: 0; }
  .pm-frame { padding: 20px 16px; }
  .pm-flow li small { display: none; }
}