/* ============================================================
   他山之石 · 整站设计系统（亮色玻璃专业风） v1.0  2026-10
   ------------------------------------------------------------
   设计原则：
   - 浅色信任感底色 + 白色玻璃卡片 + 品牌青强调
   - 深色板仅用于页脚与 CTA 横幅，形成收束对比
   - 系统字体栈（不引外部字体，避免渲染阻塞白屏）
   - 线性图标（lucide，stroke 1.75），禁用 emoji 图标
   - 版心 1200 / 文章版心 720；区块节奏 96 / 64
   - 圆角：卡 16-18 / 按钮 12 / 徽章 999
   - 网格降级：4 → 2 → 1（断点 1024 / 768 / 480）
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 色板 */
  --bg: #f5f8fb;                       /* 页面底色 */
  --surface: #ffffff;                  /* 区块白 */
  --glass: rgba(255, 255, 255, .78);   /* 玻璃卡 */
  --glass-strong: rgba(255, 255, 255, .92);
  --line: #e3ebf2;                     /* 玻璃卡边框 */
  --line-strong: #d2dde8;
  --ink: #0f1c2e;                      /* 标题墨蓝 */
  --ink-2: #5b6b7e;                    /* 次级文字 */
  --ink-3: #94a3b8;                    /* 弱文字 */
  --brand: #0891b2;                    /* 品牌青 */
  --brand-strong: #0e7490;             /* 品牌青 hover */
  --brand-soft: #e0f5fa;               /* 青浅底 */
  --brand-line: #c2e8f2;               /* 青浅边 */
  --ok: #16a34a;
  --warn: #d97706;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(2, 32, 71, .06);
  --shadow-card: 0 2px 8px rgba(2, 32, 71, .05), 0 14px 34px rgba(2, 32, 71, .08);
  --shadow-lift: 0 4px 12px rgba(2, 32, 71, .08), 0 20px 48px rgba(2, 32, 71, .12);
  --shadow-pop: 0 16px 48px rgba(2, 32, 71, .16);

  /* 版心与节奏 */
  --container: 1200px;
  --pad: 40px;
  --sec: 96px;
  --sec-tight: 64px;

  /* 圆角 */
  --r-card: 16px;
  --r-card-lg: 18px;
  --r-btn: 12px;
  --r-pill: 999px;

  /* 字体 */
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* 布局 */
  --header-h: 64px;
}

/* ---------- 2. 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, p, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; }

[id] { scroll-margin-top: calc(var(--header-h) + 24px); }

::selection { background: rgba(8, 145, 178, .18); }

/* lucide 图标默认线宽与对齐 */
.lucide, i[data-lucide] { flex-shrink: 0; }

/* ---------- 3. 版心 ---------- */
.tszs-container {
  width: 100%;
  max-width: calc(var(--container) + var(--pad) * 2);
  margin: 0 auto;
  padding: 0 var(--pad);
}
@media (max-width: 768px) {
  :root { --pad: 20px; }
}

/* ---------- 4. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: 0;
  border-radius: var(--r-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color .15s ease, border-color .15s ease,
              color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.btn .lucide { width: 17px; height: 17px; }
.btn:active { transform: translateY(1px); }

/* 实心青主按钮 */
.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 6px 18px rgba(8, 145, 178, .28);
}
.btn-primary:hover { background: var(--brand-strong); box-shadow: 0 8px 22px rgba(8, 145, 178, .34); }

/* 白玻璃次按钮（浅色背景用） */
.btn-glass {
  background: var(--glass-strong);
  color: var(--ink);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-sm);
}
.btn-glass:hover { border-color: var(--brand-line); color: var(--brand); background: #fff; }

.btn-block { width: 100%; }
.btn-lg { padding: 14px 28px; font-size: 16px; }

/* ---------- 5. 徽章 / 标签 / 图标座 ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: var(--glass);
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 500;
}
.pill .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, .15);
}
.pill--brand {
  background: var(--brand-soft);
  border-color: var(--brand-line);
  color: var(--brand-strong);
}

.icon-tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
  color: var(--brand);
}
.icon-tile .lucide { width: 22px; height: 22px; }
.icon-tile--sm { width: 36px; height: 36px; border-radius: 10px; }
.icon-tile--sm .lucide { width: 18px; height: 18px; }

/* ---------- 6. 区块节奏与标题 ---------- */
.sec { padding: var(--sec) 0; }
.sec--tight { padding: var(--sec-tight) 0; }
.sec--white { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.sec-head { max-width: 720px; margin-bottom: 48px; }
.sec-head--center { margin-left: auto; margin-right: auto; text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--brand);
}
.eyebrow .lucide { width: 15px; height: 15px; }

.sec-title {
  font-size: 34px;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}
.sec-sub {
  margin-top: 14px;
  font-size: 16px;
  color: var(--ink-2);
}

@media (max-width: 768px) {
  :root { --sec: 64px; --sec-tight: 48px; }
  .sec-title { font-size: 26px; }
  .sec-head { margin-bottom: 32px; }
}

/* ---------- 7. 玻璃卡原语 ---------- */
.glass-card {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.glass-card--hover { transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease; }
.glass-card--hover:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-color: var(--brand-line);
}

/* ---------- 8. 页头（玻璃吸顶） ---------- */
.tszs-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(245, 248, 251, .72);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  transition: background-color .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.tszs-header.tszs-scrolled {
  background: rgba(255, 255, 255, .88);
  border-bottom-color: var(--line);
  box-shadow: 0 1px 0 rgba(2, 32, 71, .02), 0 8px 24px rgba(2, 32, 71, .06);
}

.tszs-main { padding-top: var(--header-h); }

.tszs-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-h);
}

.tszs-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}
.tszs-logo-text {
  font-size: 18px;
  letter-spacing: .02em;
  color: var(--ink);
}

.tszs-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.tszs-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-2);
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: color .15s ease, background-color .15s ease;
}
.tszs-nav-link:hover { color: var(--ink); background: rgba(8, 145, 178, .07); }
.tszs-nav-link.active { color: var(--brand-strong); font-weight: 600; }
.tszs-caret { width: 12px; height: 12px; transition: transform .18s ease; }
.tszs-nav-item.tszs-open .tszs-caret { transform: rotate(180deg); }

.tszs-header-actions { display: flex; align-items: center; gap: 12px; }
.tszs-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--r-btn);
  background: var(--brand);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(8, 145, 178, .26);
  transition: background-color .15s ease, box-shadow .15s ease;
}
.tszs-cta:hover { background: var(--brand-strong); }
.tszs-cta .lucide { width: 15px; height: 15px; }
.tszs-cta--block { width: 100%; justify-content: center; }

.tszs-menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--glass-strong);
  color: var(--ink);
  cursor: pointer;
}

/* ---------- 9. 产品方案 Mega Menu ---------- */
.tszs-mega {
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  padding: 24px 0 20px;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 24px 48px rgba(2, 32, 71, .10);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.tszs-mega.tszs-open { opacity: 1; visibility: visible; transform: translateY(0); }

.tszs-mega-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px 32px;
}
.tszs-mega-h {
  margin: 6px 0 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--ink-3);
}
.tszs-mega-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: 12px;
  transition: background-color .15s ease;
}
.tszs-mega-item:hover { background: var(--brand-soft); }
.tszs-mega-item--cur { background: var(--brand-soft); }
.tszs-mi-ic {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: #fff;
  border: 1px solid var(--brand-line);
  color: var(--brand);
}
.tszs-mi-ic .lucide { width: 17px; height: 17px; }
.tszs-mega-txt { display: flex; flex-direction: column; line-height: 1.4; }
.tszs-mega-txt b { font-size: 14px; font-weight: 600; color: var(--ink); }
.tszs-mega-txt small { font-size: 12px; color: var(--ink-3); }

.tszs-mega-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.tszs-mega-ind { font-size: 12.5px; color: var(--ink-3); }
.tszs-mega-all {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--brand);
}
.tszs-mega-all .lucide { width: 14px; height: 14px; }

/* ---------- 10. 移动端菜单 ---------- */
.tszs-mobile-menu {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999;
  padding: 16px 0 32px;
  background: rgba(245, 248, 251, .98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.tszs-mobile-menu.tszs-open { opacity: 1; visibility: visible; transform: translateY(0); }

.tszs-mobile-nav { display: flex; flex-direction: column; }
.tszs-mobile-group {
  margin: 14px 0 4px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--ink-3);
}
.tszs-mobile-link {
  padding: 11px 12px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
}
.tszs-mobile-link:hover { background: rgba(8, 145, 178, .07); color: var(--ink); }
.tszs-mobile-link.active { color: var(--brand-strong); font-weight: 600; }
.tszs-mobile-cta-wrap { margin-top: 20px; }

/* ---------- 11. 页脚（浅色收束板） ---------- */
.tszs-footer {
  position: relative;
  margin-top: 0;
  padding: 72px 0 32px;
  background: var(--bg);
  border-top: 1px solid var(--line);
  color: var(--ink-2);
  overflow: hidden;
}
.tszs-footer::before {
  content: "";
  position: absolute;
  top: -220px;
  left: 50%;
  width: 820px;
  height: 440px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(8, 145, 178, .07), transparent 70%);
  pointer-events: none;
}
.tszs-footer-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line);
}

.tszs-footer .tszs-logo-text { color: var(--ink); }
.tszs-footer-brand-intro {
  margin-top: 16px;
  max-width: 340px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}

.tszs-footer-title {
  margin-bottom: 18px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--ink);
}
.tszs-footer-list { display: flex; flex-direction: column; gap: 11px; }
.tszs-footer-link { font-size: 14px; color: var(--ink-2); transition: color .15s ease; }
.tszs-footer-link:hover { color: var(--brand); }

.tszs-contact-list { display: flex; flex-direction: column; gap: 12px; }
.tszs-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-2);
}
.tszs-contact-item .lucide {
  width: 16px;
  height: 16px;
  margin-top: 3px;
  color: var(--brand);
}

.tszs-footer-bottom {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding-top: 28px;
  text-align: center;
}
.tszs-footer-copy { font-size: 13px; color: var(--ink-3); }
.tszs-footer-icp { font-size: 13px; color: var(--ink-3); transition: color .15s ease; }
.tszs-footer-icp:hover { color: var(--brand); }

@media (max-width: 1024px) {
  .tszs-footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 480px) {
  .tszs-footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ---------- 12. 装饰光晕（浅色系） ---------- */
.tszs-glow {
  position: absolute;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(34, 211, 238, .14), transparent 70%);
  filter: blur(8px);
  pointer-events: none;
}
.tszs-glow--tl { top: -180px; left: -160px; }
.tszs-glow--br { bottom: -180px; right: -160px; }

/* ---------- 13. 面包屑 / 页内子导航 ---------- */
.pd-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-3);
}
.pd-crumb a:hover { color: var(--brand); }
.pd-crumb .lucide { width: 13px; height: 13px; }
.pd-crumb-current { color: var(--ink-2); }

.tszs-subnav {
  position: sticky;
  top: var(--header-h);
  z-index: 900;
  background: rgba(245, 248, 251, .88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.tszs-subnav-inner {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tszs-subnav-inner::-webkit-scrollbar { display: none; }
.tszs-subnav-inner a {
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-2);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.tszs-subnav-inner a:hover { color: var(--brand-strong); border-color: var(--brand-line); }

/* ---------- 14. FAQ 手风琴 ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; max-width: 860px; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: var(--glass);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: border-color .15s ease;
}
.faq-item[open] { border-color: var(--brand-line); background: #fff; }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "";
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background: currentColor;
  color: var(--ink-3);
  -webkit-mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="m6 9 6 6 6-6"/></svg>') center / contain no-repeat;
  mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="m6 9 6 6 6-6"/></svg>') center / contain no-repeat;
  transition: transform .2s ease;
}
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--brand); }
.faq-answer {
  padding: 0 22px 20px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 15. 数据指标 ---------- */
.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.metric {
  padding: 24px 20px;
  text-align: center;
}
.metric-num {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--brand-strong);
  font-variant-numeric: tabular-nums;
}
.metric-label { margin-top: 6px; font-size: 13.5px; color: var(--ink-2); }
@media (max-width: 1024px) { .metric-strip { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .metric-strip { grid-template-columns: 1fr 1fr; gap: 10px; } .metric { padding: 18px 12px; } .metric-num { font-size: 24px; } }

/* ============================================================
   首页（hp-）
   ============================================================ */

/* ---------- 16. Hero ---------- */
.hp-hero {
  position: relative;
  padding: 84px 0 96px;
  background:
    radial-gradient(880px 420px at 82% -8%, rgba(34, 211, 238, .12), transparent 65%),
    radial-gradient(680px 380px at 8% 108%, rgba(8, 145, 178, .07), transparent 60%),
    var(--bg);
  overflow: hidden;
}
.hp-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 430px;
  align-items: center;
  gap: 64px;
}

.hp-badge { margin-bottom: 22px; }
.hp-title {
  font-size: 52px;
  line-height: 1.22;
  font-weight: 700;
  letter-spacing: -.015em;
  color: var(--ink);
}
.hp-grad {
  background: linear-gradient(92deg, var(--brand) 8%, #22b8d4 55%, #0e7490 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hp-desc {
  margin-top: 22px;
  max-width: 560px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink-2);
}
.hp-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

@media (max-width: 1024px) {
  .hp-hero { padding: 56px 0 64px; }
  .hp-hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hp-title { font-size: 40px; }
}
@media (max-width: 480px) {
  .hp-title { font-size: 30px; }
  .hp-desc { font-size: 15px; }
  .hp-ctas .btn { width: 100%; }
}

/* ---------- 17. 驾驶舱样机卡（首页 / 浅色玻璃） ---------- */
.dash {
  position: relative;
  border-radius: var(--r-card-lg);
  background: var(--glass-strong);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lift);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  overflow: hidden;
}
.dash-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(245, 248, 251, .6);
}
.dash-dots { display: inline-flex; gap: 6px; }
.dash-dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--line-strong); }
.dash-dots i:first-child { background: #fda4af; }
.dash-dots i:nth-child(2) { background: #fcd34d; }
.dash-dots i:last-child { background: #86efac; }
.dash-title { flex: 1; font-size: 12.5px; font-weight: 600; color: var(--ink-2); }
.dash-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--ok);
}
.dash-live b {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  animation: hpPulse 1.8s ease infinite;
}
@keyframes hpPulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

.dash-body { display: grid; grid-template-columns: 108px 1fr; }
.dash-side {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 10px;
  border-right: 1px solid var(--line);
  background: rgba(245, 248, 251, .5);
}
.ds-item {
  padding: 7px 10px;
  border: 0;
  border-radius: 8px;
  font-size: 12px;
  font-family: inherit;
  color: var(--ink-2);
  background: transparent;
  white-space: nowrap;
  text-align: left;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.ds-item:hover { background: rgba(8, 145, 178, .09); color: var(--brand-strong); }
.ds-item:focus-visible { outline: 2px solid var(--brand); outline-offset: 1px; }
.ds-item.ds-on { background: var(--brand-soft); color: var(--brand-strong); font-weight: 600; }

.dash-main { padding: 14px; display: flex; flex-direction: column; gap: 12px; transition: opacity .17s ease, transform .17s ease; }
.dash-main.dm-fade { opacity: 0; transform: translateY(6px); }
.dm-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.dm-kpi {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.dk-l { font-size: 11px; color: var(--ink-3); }
.dk-v {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.dk-v .up { margin-left: 4px; font-size: 10.5px; font-weight: 600; color: var(--ok); }

.dm-chart {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 12px;
}
.dc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-2);
}
.dc-badge {
  padding: 2px 8px;
  border-radius: var(--r-pill);
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-size: 10.5px;
  font-weight: 600;
}
.dc-bars {
  display: flex;
  align-items: flex-end;
  gap: 7px;
  height: 76px;
}
.dc-bars i {
  flex: 1;
  height: var(--h, 40%);
  border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, #67e8f9, rgba(8, 145, 178, .75));
}
.dc-bars i.dc-hot { background: linear-gradient(180deg, #22d3ee, var(--brand)); }

.dm-rows { display: flex; flex-direction: column; gap: 7px; }
.dm-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  font-size: 11.5px;
  color: var(--ink-2);
}
.dm-row .dr-t { margin-left: auto; font-size: 10.5px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.dr-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  flex-shrink: 0;
}
.dr-dot.info { background: var(--brand); }

/* ---------- 18. 信任带（白底） ---------- */
.hp-trust { padding: 56px 0; }
.hp-trust-inner { text-align: center; }
.hp-trust-title { font-size: 19px; font-weight: 600; color: var(--ink); }
.hp-trust-title em { font-style: normal; color: var(--brand-strong); }
.hp-trust-sub { margin-top: 8px; font-size: 14.5px; color: var(--ink-3); }

.hp-trust-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 880px;
  margin: 36px auto 0;
}
@media (max-width: 768px) { .hp-trust-stats { grid-template-columns: repeat(2, 1fr); } }

.hp-trust-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 30px;
}

/* ---------- 19. 核心方案 Bento（3×3） ---------- */
.hp-bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.sol-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 24px;
}
.sol-top { display: flex; align-items: center; justify-content: space-between; }
.sol-badge {
  padding: 3px 10px;
  border-radius: var(--r-pill);
  background: var(--bg);
  border: 1px solid var(--line);
  font-size: 11.5px;
  color: var(--ink-3);
}
.sol-card--feat { border-color: var(--brand-line); background: linear-gradient(160deg, #fff 55%, #f2fbfd 100%); }
.sol-title { font-size: 18.5px; font-weight: 700; color: var(--ink); }
.sol-desc { font-size: 14px; line-height: 1.75; color: var(--ink-2); }
.sol-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--brand);
}
.sol-link .lucide { width: 15px; height: 15px; transition: transform .15s ease; }
.sol-card:hover .sol-link .lucide { transform: translateX(3px); }
.sol-points { display: flex; flex-direction: column; gap: 8px; }
.sol-points li { display: flex; gap: 8px; font-size: 13.5px; line-height: 1.6; color: var(--ink-2); }
.sol-points .lucide { width: 15px; height: 15px; margin-top: 4px; color: var(--brand); }

@media (max-width: 1024px) { .hp-bento { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .hp-bento { grid-template-columns: 1fr; } }

/* ---------- 20. AI 能力（白底 3 卡 + 交付保障） ---------- */
.hp-ai-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.ai-card { padding: 28px 24px; display: flex; flex-direction: column; gap: 12px; }
.ai-card-metric {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}
.ai-card-metric b {
  font-size: 26px;
  font-weight: 700;
  color: var(--brand-strong);
  font-variant-numeric: tabular-nums;
}
.ai-card-metric span { font-size: 13px; color: var(--ink-3); }
.ai-card h3 { font-size: 17px; font-weight: 700; color: var(--ink); }
.ai-card p { font-size: 14px; line-height: 1.75; color: var(--ink-2); }
@media (max-width: 1024px) { .hp-ai-grid { grid-template-columns: 1fr; max-width: 560px; } }

.hp-deliver {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 18px;
  margin-top: 18px;
}
.hp-deliver-col { padding: 26px 24px; }
.hp-deliver-h {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
}
.hp-deliver-h .lucide { width: 17px; height: 17px; color: var(--brand); }

.step-list { display: flex; flex-direction: column; gap: 0; }
.p-step { display: flex; gap: 14px; position: relative; padding-bottom: 18px; }
.p-step:last-child { padding-bottom: 0; }
.p-step::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 28px;
  bottom: 2px;
  width: 1px;
  background: var(--line-strong);
}
.p-step:last-child::before { display: none; }
.process-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
  color: var(--brand-strong);
  font-size: 11.5px;
  font-weight: 700;
  flex-shrink: 0;
}
.p-step h3 { font-size: 14.5px; font-weight: 600; color: var(--ink); }
.p-step p { margin-top: 2px; font-size: 13px; color: var(--ink-3); }

.tech-list { display: flex; flex-direction: column; gap: 14px; }
.tech-item h3 { font-size: 13.5px; font-weight: 600; color: var(--ink-2); margin-bottom: 8px; }
.tech-chips { display: flex; flex-wrap: wrap; gap: 7px; }
.tech-chip {
  padding: 4px 12px;
  border-radius: var(--r-pill);
  background: var(--bg);
  border: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--ink-2);
}
@media (max-width: 1024px) { .hp-deliver { grid-template-columns: 1fr; } }

/* ---------- 21. 底部 CTA（浅色玻璃） ---------- */
.hp-cta { padding: var(--sec-tight) 0; }
.cta-banner {
  position: relative;
  padding: 64px 40px;
  border-radius: 22px;
  border: 1px solid #cfe9f2;
  background: linear-gradient(160deg, #eafafc 0%, #f8fcfe 55%, #eaf6fb 100%);
  box-shadow: var(--shadow-card);
  color: var(--ink);
  text-align: center;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 560px;
  height: 280px;
  background: radial-gradient(closest-side, rgba(8, 145, 178, .10), transparent 70%);
  pointer-events: none;
}
.cta-banner .sec-title { position: relative; color: var(--ink); }
.cta-desc {
  position: relative;
  max-width: 560px;
  margin: 16px auto 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-2);
}
.cta-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 32px;
}
.cta-hint { position: relative; margin-top: 22px; font-size: 13px; color: var(--ink-3); }
@media (max-width: 768px) {
  .cta-banner { padding: 52px 24px; }
  .cta-actions .btn { width: 100%; }
}

/* ============================================================
   产品页（pd-）
   ============================================================ */

/* ---------- 22. 产品 Hero ---------- */
.pd-hero {
  position: relative;
  padding: 64px 0 72px;
  background:
    radial-gradient(760px 360px at 88% -10%, rgba(34, 211, 238, .11), transparent 65%),
    var(--bg);
  overflow: hidden;
}
.pd-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 440px;
  align-items: center;
  gap: 56px;
}
.pd-badge { margin-bottom: 18px; }
.pd-title {
  font-size: 42px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}
.pd-subtitle {
  margin-top: 10px;
  font-size: 18px;
  font-weight: 600;
  color: var(--brand-strong);
}
.pd-hero-desc {
  margin-top: 16px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-2);
}
.pd-hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

@media (max-width: 1024px) {
  .pd-hero { padding: 44px 0 56px; }
  .pd-hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .pd-title { font-size: 32px; }
}
@media (max-width: 480px) {
  .pd-title { font-size: 26px; }
  .pd-hero-ctas .btn { width: 100%; }
}

/* ---------- 23. 产品界面样机卡（通用浅色玻璃） ---------- */
.pd-board {
  border-radius: var(--r-card-lg);
  background: var(--glass-strong);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lift);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  overflow: hidden;
}
.pd-board-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(245, 248, 251, .6);
}
.pd-board-dots { display: inline-flex; gap: 6px; }
.pd-board-dots i { width: 9px; height: 9px; border-radius: 50%; }
.pd-board-dots i:nth-child(1) { background: #fda4af; }
.pd-board-dots i:nth-child(2) { background: #fcd34d; }
.pd-board-dots i:nth-child(3) { background: #86efac; }
.pd-board-title { flex: 1; font-size: 12.5px; font-weight: 600; color: var(--ink-2); }
.pd-board-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--ok);
}
.pd-board-live b { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); animation: hpPulse 1.8s ease infinite; }

.pd-board-body { padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.pb-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.pb-kpi {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.pb-kpi span { font-size: 11px; color: var(--ink-3); }
.pb-kpi b {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.pb-kpi b em { margin-left: 4px; font-style: normal; font-size: 10.5px; font-weight: 600; color: var(--ok); }

.pb-lines { display: flex; flex-direction: column; gap: 9px; }
.pb-line { display: flex; align-items: center; gap: 10px; }
.pb-line-name { width: 56px; font-size: 12px; color: var(--ink-2); flex-shrink: 0; }
.pb-line-track {
  flex: 1;
  height: 8px;
  border-radius: var(--r-pill);
  background: var(--bg);
  border: 1px solid var(--line);
  overflow: hidden;
}
.pb-line-fill {
  display: block;
  height: 100%;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, #67e8f9, var(--brand));
}
.pb-line-fill--warn { background: linear-gradient(90deg, #fcd34d, var(--warn)); }
.pb-line-pct { width: 38px; text-align: right; font-size: 11.5px; font-weight: 600; color: var(--ink-2); font-variant-numeric: tabular-nums; }

.pb-rows { display: flex; flex-direction: column; gap: 7px; }
.pb-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  font-size: 11.5px;
  color: var(--ink-2);
}
.pb-row .pb-row-t { margin-left: auto; font-size: 10.5px; color: var(--ink-3); font-variant-numeric: tabular-nums; }

.pb-note {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
  font-size: 12px;
  font-weight: 500;
  color: var(--brand-strong);
}
.pb-note .lucide { width: 14px; height: 14px; }

.pb-chips { display: flex; flex-wrap: wrap; gap: 7px; }
.pb-chip {
  padding: 5px 12px;
  border-radius: var(--r-pill);
  background: #fff;
  border: 1px solid var(--line);
  font-size: 12px;
  color: var(--ink-2);
}
.pb-chip--brand { background: var(--brand-soft); border-color: var(--brand-line); color: var(--brand-strong); font-weight: 600; }

/* ---------- 24. 产品数据条 ---------- */
.pd-metrics-band { padding: 44px 0; }
.pd-metrics {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.pd-metrics-main {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 48px;
}
.pd-metric { text-align: left; }
.pd-metric-num {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--brand-strong);
  font-variant-numeric: tabular-nums;
}
.pd-metric-label { margin-top: 4px; font-size: 13px; color: var(--ink-2); }
.pd-metrics-chips { display: flex; flex-wrap: wrap; gap: 8px; }
@media (max-width: 768px) {
  .pd-metrics { flex-direction: column; align-items: flex-start; }
  .pd-metrics-main { grid-template-columns: repeat(3, 1fr); gap: 20px; width: 100%; }
  .pd-metric-num { font-size: 24px; }
}

/* ---------- 25. 产品模块卡 ---------- */
.pd-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.pd-feat { padding: 26px 24px; display: flex; flex-direction: column; gap: 12px; }
.pd-feat-top { display: flex; align-items: center; justify-content: space-between; }
.pd-feat-num { font-size: 13px; font-weight: 700; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.pd-feat h3 { font-size: 16.5px; font-weight: 700; color: var(--ink); }
.pd-feat p { font-size: 13.5px; line-height: 1.75; color: var(--ink-2); }
.pd-feat .sol-points { display: flex; flex-direction: column; gap: 7px; }
.pd-feat .sol-points li { display: flex; gap: 8px; font-size: 13px; color: var(--ink-2); }
.pd-feat .sol-points .lucide { width: 15px; height: 15px; margin-top: 3px; color: var(--brand); }
@media (max-width: 1024px) { .pd-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .pd-grid { grid-template-columns: 1fr; } }

/* ---------- 26. 产品 AI 能力 ---------- */
.pd-ai-list { display: flex; flex-direction: column; gap: 14px; max-width: 880px; }
.ai-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px 24px;
}
.ai-item-body { flex: 1; min-width: 0; }
.ai-item-body h3 { font-size: 16px; font-weight: 700; color: var(--ink); }
.ai-item-body p { margin-top: 5px; font-size: 14px; line-height: 1.75; color: var(--ink-2); }
.ai-metric {
  flex-shrink: 0;
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.ai-metric b {
  font-size: 24px;
  font-weight: 700;
  color: var(--brand-strong);
  font-variant-numeric: tabular-nums;
}
.ai-metric span { font-size: 12px; color: var(--ink-3); }
@media (max-width: 640px) {
  .ai-item { flex-direction: column; gap: 10px; }
  .ai-metric { flex-direction: row; align-items: baseline; gap: 8px; text-align: left; }
}
.pd-ai-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.pd-ai-grid .ai-item { align-items: flex-start; }
@media (max-width: 768px) { .pd-ai-grid { grid-template-columns: 1fr; } }

/* 技术架构行 */
.arch-list { display: flex; flex-direction: column; gap: 10px; max-width: 880px; }
.arch-row {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 16px 20px;
}
.arch-chip {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-width: 108px;
  padding: 7px 13px;
  border-radius: 10px;
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
  color: var(--brand-strong);
  font-size: 13px;
  font-weight: 600;
}
.arch-chip .lucide { width: 15px; height: 15px; }
.arch-row p { flex: 1; min-width: 0; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; }
.arch-tech { font-size: 14.5px; font-weight: 600; color: var(--ink); font-family: "SF Mono", Consolas, monospace; }
.arch-note { font-size: 13px; color: var(--ink-3); }
@media (max-width: 640px) { .arch-row { flex-direction: column; align-items: flex-start; gap: 8px; } }

.scene-grid--3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1024px) { .scene-grid--3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .scene-grid--3 { grid-template-columns: 1fr; } }

/* ---------- 27. 应用场景 / 信任 ---------- */
.scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.scene-card { padding: 24px; }
.scene-card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}
.scene-card h3 .lucide { width: 18px; height: 18px; color: var(--brand); }
.scene-card p { margin-top: 8px; font-size: 14px; line-height: 1.75; color: var(--ink-2); }
.scene-card .scene-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
@media (max-width: 768px) { .scene-grid { grid-template-columns: 1fr; } }

.trust-band { padding: 28px 32px; }
.trust-band p { font-size: 15px; line-height: 1.85; color: var(--ink-2); }
.trust-band p b { color: var(--ink); }

/* ---------- 28. 相关方案 ---------- */
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.related-card { padding: 22px 24px; display: flex; flex-direction: column; gap: 6px; }
.related-card b { font-size: 15.5px; font-weight: 700; color: var(--ink); }
.related-card span { font-size: 13.5px; color: var(--ink-3); }
.related-card .sol-link { margin-top: 8px; }
@media (max-width: 768px) { .related-grid { grid-template-columns: 1fr; } }

/* ---------- 29. 产品页 CTA ---------- */
.pd-cta { padding: 0 0 var(--sec-tight); }

/* ============================================================
   资讯列表页（news.html，沿用 news-* 类名）
   ============================================================ */
.news-hero { padding: 72px 0 40px; background: var(--bg); }
.news-hero-inner { max-width: 720px; }
.news-title {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}
.news-sub { margin-top: 12px; font-size: 15.5px; color: var(--ink-2); }
.news-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.news-chip {
  padding: 7px 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-strong);
  background: var(--glass-strong);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink-2);
  cursor: pointer;
  transition: all .15s ease;
}
.news-chip:hover { border-color: var(--brand-line); color: var(--brand-strong); }
.news-chip.on { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }

.news-section { padding: 32px 0 var(--sec); }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.news-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.news-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-color: var(--brand-line);
}
.news-card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.news-card-tag {
  padding: 3px 11px;
  border-radius: var(--r-pill);
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--brand-strong);
}
.news-card-date { font-size: 12px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.news-card-title {
  font-size: 16.5px;
  line-height: 1.55;
  font-weight: 700;
  color: var(--ink);
}
.news-card-excerpt {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-2);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand);
}
.news-card-more .lucide { width: 14px; height: 14px; }
@media (max-width: 1024px) { .news-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .news-grid { grid-template-columns: 1fr; } }
.news-empty { padding: 48px 0; text-align: center; color: var(--ink-3); }

/* ============================================================
   文章页（na-，生成器锚点类名不可改动）
   ============================================================ */
.na-wrap {
  position: relative;
  max-width: 1056px;           /* 720 正文 + 280 目录 + 56 间距 */
  margin: 0 auto;
  padding: 48px var(--pad) 88px;
}
@media (max-width: 1200px) { .na-wrap { max-width: calc(720px + var(--pad) * 2); } }
.na-grid {
  display: grid;
  grid-template-columns: minmax(0, 720px) 280px;
  gap: 56px;
  align-items: start;
}
@media (max-width: 1200px) {
  .na-grid { grid-template-columns: minmax(0, 1fr); gap: 0; }
}

.news-crumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-3);
}
.news-crumb a:hover { color: var(--brand); }
.news-crumb .lucide { width: 13px; height: 13px; }
.news-crumb-current { color: var(--ink-2); }

.na-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
  font-size: 13px;
  color: var(--ink-3);
}
.na-meta-item { display: inline-flex; align-items: center; gap: 6px; }
.na-meta-item .lucide { width: 14px; height: 14px; }

.na-title {
  margin-top: 16px;
  font-size: 34px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}
.na-lead {
  margin-top: 18px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-2);
}
@media (max-width: 768px) { .na-title { font-size: 25px; } }

/* 正文排版 */
.na-content { margin-top: 40px; font-size: 15.5px; line-height: 1.9; color: #334155; }
.na-content p { margin: 0 0 18px; }
.na-content h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 44px 0 18px;
  font-size: 22px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--ink);
}
.na-h2-no {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  border-radius: 10px;
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
  color: var(--brand-strong);
  font-size: 14px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.na-content ul { margin: 0 0 18px; display: flex; flex-direction: column; gap: 9px; }
.na-content ul li {
  position: relative;
  padding-left: 20px;
}
.na-content ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}
.na-content strong { color: var(--ink); font-weight: 600; }
.na-content a { color: var(--brand-strong); text-decoration: underline; text-underline-offset: 3px; }
.na-content table {
  width: 100%;
  margin: 0 0 18px;
  border-collapse: collapse;
  font-size: 14px;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.na-content th {
  padding: 11px 14px;
  text-align: left;
  background: var(--brand-soft);
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}
.na-content td {
  padding: 11px 14px;
  border-top: 1px solid var(--line);
  color: var(--ink-2);
  vertical-align: top;
}
.na-content blockquote {
  margin: 0 0 18px;
  padding: 14px 18px;
  border-left: 3px solid var(--brand);
  border-radius: 0 12px 12px 0;
  background: #e9f6fa;
  color: var(--ink-2);
}

/* 核心要点速览 */
.na-keytake {
  margin: 0 0 34px;
  padding: 22px 24px;
  border-radius: var(--r-card);
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
}
.na-keytake-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--brand-strong);
}
.na-keytake-title .lucide { width: 17px; height: 17px; }
.na-keytake ul { display: flex; flex-direction: column; gap: 8px; margin: 0; }
.na-keytake li { position: relative; padding-left: 20px; font-size: 14.5px; line-height: 1.8; color: #155e75; }
.na-keytake li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}

/* 提示框 */
.na-tip {
  display: flex;
  gap: 12px;
  margin: 26px 0;
  padding: 18px 20px;
  border-radius: 14px;
  background: #fffbeb;
  border: 1px solid #fde68a;
}
.na-tip .lucide { width: 19px; height: 19px; margin-top: 3px; color: var(--warn); }
.na-tip p { margin: 0; font-size: 14.5px; line-height: 1.8; color: #78350f; }

/* 延伸阅读（生成器锚点：.na-related 内 .na-related-list 直接子元素为 <a>） */
.na-related { margin-top: 52px; }
.na-related-title { margin-bottom: 16px; font-size: 18px; font-weight: 700; color: var(--ink); }
.na-related-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.na-related-list a {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 18px 20px;
  border-radius: 14px;
  background: var(--glass);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.na-related-list a:hover {
  transform: translateY(-2px);
  border-color: var(--brand-line);
  box-shadow: var(--shadow-card);
}
.nr-name { font-size: 14.5px; font-weight: 600; color: var(--ink); }
.nr-desc { font-size: 12.5px; color: var(--ink-3); }
@media (max-width: 900px) { .na-related-list { grid-template-columns: 1fr; } }

/* 文章页脚 */
.na-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.na-back {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-2);
}
.na-back:hover { color: var(--brand-strong); }
.na-back .lucide { width: 15px; height: 15px; }
.news-cta-actions { display: flex; gap: 12px; }
.news-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 11px 22px;
  border-radius: var(--r-btn);
  font-size: 14.5px;
  font-weight: 600;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.news-btn .lucide { width: 16px; height: 16px; }
.news-btn--primary { background: var(--brand); color: #fff; box-shadow: 0 6px 18px rgba(8, 145, 178, .28); }
.news-btn--primary:hover { background: var(--brand-strong); }
.news-btn--ghost {
  background: var(--glass-strong);
  border: 1px solid var(--line-strong);
  color: var(--ink);
}
.news-btn--ghost:hover { border-color: var(--brand-line); color: var(--brand); }

/* 文章右侧粘性目录（JS 生成，无 JS 时隐藏） */
.na-toc {
  position: sticky;
  top: calc(var(--header-h) + 32px);
  display: none;
}
@media (min-width: 1200px) {
  .na-toc.is-ready { display: block; }
}
.na-toc-title {
  margin-bottom: 12px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--ink-3);
}
.na-toc-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-left: 1px solid var(--line-strong);
}
.na-toc-list a {
  padding: 7px 0 7px 16px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-2);
  transition: color .15s ease, border-color .15s ease;
}
.na-toc-list a:hover { color: var(--brand-strong); }
.na-toc-list a.on { color: var(--brand-strong); border-color: var(--brand); font-weight: 600; }

/* ============================================================
   动效与无障碍
   ============================================================ */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity .5s ease, transform .5s ease;
  }
  .reveal.is-in { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

@media print {
  .tszs-header, .tszs-subnav, .tszs-footer, .hp-cta, .pd-cta { display: none; }
  body { background: #fff; }
}