/* ==========================================================================
   深圳市辰瀚数字科技有限公司 · 官网样式表
   设计令牌与组件样式（与设计稿 1920px 版式对齐）
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 品牌色 */
  --brand: #014db2;
  --brand-strong: #004db2;
  --brand-deep: #000833;
  --accent: #38bdf8;

  /* 文本色 */
  --ink: #0a1628;
  --text: #4b5563;
  --muted: #6b7280;
  --nav: #3d4757;
  --dim: #8a94a6;

  /* 深色底上的文本 */
  --on-dark: #ffffff;
  --on-dark-soft: #c3d3ec;
  --on-dark-dim: #8fa3c4;
  --on-dark-mono: #9db8e0;
  --on-dark-tag: #cbdcff;

  /* 背景 */
  --bg: #ffffff;
  --bg-muted: #f9f9f9;
  --bg-panel: #f7faff;
  --bg-icon: #eff4fc;
  --bg-chip: #f1f3f6;

  /* 描边 */
  --line: #e4e9f2;
  --line-soft: #eaeaea;
  --line-mid: #e1e5ea;
  --line-panel: #e7eaee;

  /* 页脚 */
  --footer-bg: #060b14;
  --footer-line: #1a2437;
  --footer-text: #7c8ca6;
  --footer-label: #5a6b85;
  --footer-head: #e8eef7;

  /* 渐变 */
  --grad-hero: linear-gradient(180deg, #004db2 0%, #000833 100%);
  --grad-news-1: linear-gradient(90deg, #052e73 0%, #0559c7 100%);
  --grad-news-2: linear-gradient(90deg, #0d1c59 0%, #14479e 100%);
  --grad-news-3: linear-gradient(90deg, #05406b 0%, #0a85bf 100%);
  --grad-focus: linear-gradient(180deg, #051f61 0%, #054fb8 62%, #0d82d9 100%);
  --grad-story-1: linear-gradient(180deg, #051f5e 0%, #0a4fa8 100%);
  --grad-story-2: linear-gradient(180deg, #081a45 0%, #125ca8 100%);
  --grad-story-3: linear-gradient(180deg, #05293f 0%, #0a6e9e 100%);

  /* 字体 */
  --font-cn: "Source Han Sans CN", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-en: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* 尺寸 */
  --container: 1760px;
  --gutter: 80px;
  --radius-card: 12px;
  --radius-panel: 16px;
  --radius-btn: 8px;
  --radius-pill: 999px;

  --shadow-card: 0 1px 2px rgba(10, 22, 40, 0.04);
  --shadow-lift: 0 12px 32px rgba(10, 22, 40, 0.10);
}

/* ---------- 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-cn);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html[lang^="en"] body { font-family: var(--font-en); }

img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

::selection { background: var(--brand); color: #fff; }

/* ---------- 3. 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section { padding: 96px 0; }
.section--tight { padding: 76px 0; }
.section--muted { background: var(--bg-muted); }
.section--panel { background: var(--bg-panel); }
.section--dark { background: var(--ink); }

/* ---------- 4. 排版组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--brand);
}

.eyebrow--light { color: var(--accent); }
.eyebrow--light::before { background: var(--accent); }

.section-head { display: flex; flex-direction: column; gap: 14px; max-width: 900px; }
.section-head .h2 { margin-top: 2px; }

.h1 { font-size: 52px; line-height: 1.22; font-weight: 700; color: var(--ink); letter-spacing: -0.01em; }
.h2 { font-size: 38px; line-height: 1.3; font-weight: 700; color: var(--ink); letter-spacing: -0.01em; }
.h3 { font-size: 32px; line-height: 1.32; font-weight: 700; color: var(--ink); letter-spacing: -0.01em; }
.h4 { font-size: 22px; line-height: 1.4; font-weight: 700; color: var(--ink); }

.lead { font-size: 16px; line-height: 1.75; color: var(--muted); }
.body { font-size: 15px; line-height: 1.78; color: var(--muted); }
.small { font-size: 13px; line-height: 1.7; color: var(--muted); }

.on-dark .h2,
.on-dark .h3,
.on-dark .h1 { color: var(--on-dark); }

.on-dark .lead,
.on-dark .body { color: var(--on-dark-dim); }

.mono { font-family: var(--font-mono); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.2;
  white-space: nowrap;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}

.btn--primary { background: var(--brand); color: #fff; }
.btn--primary:hover { background: #013f92; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(1, 77, 178, 0.28); }

.btn--light { background: #fff; color: var(--ink); font-weight: 700; }
.btn--light:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22); }

.btn--ghost { border: 1px solid rgba(255, 255, 255, 0.4); color: #fff; }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.7); }

.btn--sm { padding: 9px 18px; font-size: 14px; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--brand);
}
.text-link svg { transition: transform 0.18s ease; }
.text-link:hover svg { transform: translateX(3px); }

/* ---------- 6. 导航栏 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: #fff;
  border-bottom: 1px solid var(--line-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-height: 80px;
}

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark { height: 32px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.28; }
.brand-name { font-size: 19px; font-weight: 700; color: #23272c; letter-spacing: -0.01em; }
.brand-name-en { font-family: var(--font-en); font-size: 10px; font-weight: 600; color: #3e444c; letter-spacing: 0.02em; }

.nav { display: flex; align-items: center; gap: 34px; }
.nav-link { font-size: 15px; font-weight: 500; color: var(--nav); transition: color 0.16s ease; }
.nav-link:hover { color: var(--brand); }
.nav-link.is-active { color: var(--brand); font-weight: 700; }

.header-right { display: flex; align-items: center; gap: 18px; }

.lang-switch { display: inline-flex; align-items: center; padding: 3px; border-radius: var(--radius-pill); background: #eff2f6; }
.lang-switch a {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  transition: background 0.16s ease, color 0.16s ease;
}
.lang-switch a.is-active { background: #fff; color: var(--ink); font-weight: 700; box-shadow: 0 1px 3px rgba(10, 22, 40, 0.10); }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  border: 1px solid var(--line);
  align-items: center;
  justify-content: center;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  position: relative;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle span::before,
.nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }

/* ---------- 7. Hero 首屏 ---------- */
.hero { background: var(--grad-hero); color: #fff; padding: 88px 0 92px; }
.hero-inner { display: grid; grid-template-columns: 1fr 820px; gap: 72px; align-items: center; }
.hero-copy { display: flex; flex-direction: column; gap: 26px; max-width: 760px; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--on-dark-mono);
}
.hero-eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.hero h1 { font-size: 52px; line-height: 1.24; font-weight: 700; color: #fff; letter-spacing: -0.01em; }
.hero-sub { font-size: 17px; line-height: 1.8; color: var(--on-dark-soft); max-width: 700px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-trust { font-size: 13px; color: var(--on-dark-dim); letter-spacing: 0.01em; }

.hero-panel {
  background: #fff;
  border-radius: var(--radius-panel);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 8, 51, 0.28);
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 26px;
}
.panel-title { display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.14em; color: #6e86ad; }
.panel-title::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.panel-state { font-family: var(--font-mono); font-size: 11px; color: var(--accent); }
.panel-rule { height: 1px; background: rgba(255, 255, 255, 0.1); }

.chain-row {
  display: grid;
  grid-template-columns: 46px 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 17px 26px;
  background: #0a1730;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}
.chain-row:last-child { border-bottom: 0; }
.chain-no { font-family: var(--font-mono); font-size: 12px; font-weight: 500; color: #6e86ad; }
.chain-name { font-size: 16px; font-weight: 500; color: #fff; }
.chain-spec { font-family: var(--font-mono); font-size: 11px; color: var(--on-dark-dim); letter-spacing: 0.04em; }
.chain-row.is-accent .chain-no,
.chain-row.is-accent .chain-name { color: var(--accent); }
.chain-row.is-accent .chain-name { font-weight: 700; }
.chain-row.is-accent .chain-spec { color: #7fb6d6; }

/* ---------- 8. 数据条 ---------- */
.stats-bar { background: var(--bg-muted); border-bottom: 1px solid var(--line-mid); }
.stats-inner { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { display: flex; flex-direction: column; gap: 6px; padding: 40px 8px; text-align: center; position: relative; }
.stat + .stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 46px;
  background: var(--line-mid);
}
.stat-value { font-family: var(--font-mono); font-size: 36px; font-weight: 700; line-height: 1.1; color: var(--ink); }
.stat-value.is-brand { color: var(--brand); }
.stat-label { font-size: 14px; color: var(--muted); }

/* ---------- 9. 通用卡片 ---------- */
.card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}
.card--hover:hover { box-shadow: var(--shadow-lift); transform: translateY(-3px); border-color: #cfe0f7; }
.card--dark { background: var(--ink); border-color: var(--ink); }
.card--dark .h4,
.card--dark .card-title { color: #fff; }
.card--dark .body,
.card--dark .card-desc { color: #a9b7cc; }

.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.card-head-left { display: flex; align-items: center; gap: 16px; }

.icon-box {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: var(--bg-icon);
  color: var(--brand);
}
.icon-box svg { width: 22px; height: 22px; }
.icon-box--dark { background: var(--accent); color: var(--ink); }

.card-title { font-size: 20px; font-weight: 700; line-height: 1.35; color: var(--ink); }
.card-title-en { font-family: var(--font-mono); font-size: 10px; font-weight: 400; letter-spacing: 0.1em; color: var(--dim); margin-top: 4px; }
.card-index { font-family: var(--font-mono); font-size: 13px; font-weight: 500; color: #c6cbd4; }
.card-desc { font-size: 15px; line-height: 1.78; color: var(--muted); }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: var(--bg-chip);
  font-size: 11px;
  font-weight: 500;
  color: var(--nav);
}
.tag--accent { background: #dbeafe; color: var(--brand); }
.card--dark .tag { background: rgba(56, 189, 248, 0.16); color: var(--accent); }

.badge-new {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: #05233a;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

/* ---------- 10. 网格 ---------- */
.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)); }
.grid--6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }

/* ---------- 11. 行业入口卡 ---------- */
.industry-tile {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px;
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.industry-tile:hover { background: rgba(56, 189, 248, 0.12); border-color: rgba(56, 189, 248, 0.5); transform: translateY(-3px); }
.industry-tile svg { width: 22px; height: 22px; color: var(--accent); }
.industry-tile .name { font-size: 15px; font-weight: 500; }
.industry-tile .desc { font-size: 12px; color: var(--on-dark-dim); }

/* ---------- 12. 新闻卡 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }

.news-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.news-card:hover { box-shadow: var(--shadow-lift); transform: translateY(-3px); }

.news-cover {
  position: relative;
  height: 168px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 0 26px 20px;
}
.news-cover--lg { height: 190px; padding: 0 28px 24px; }

.cover-deco {
  position: absolute;
  right: -10px;
  top: 0;
  bottom: 0;
  width: 62%;
  pointer-events: none;
}
.grad-1 { background: var(--grad-news-1); }
.grad-2 { background: var(--grad-news-2); }
.grad-3 { background: var(--grad-news-3); }
.story-1 { background: var(--grad-story-1); }
.story-2 { background: var(--grad-story-2); }
.story-3 { background: var(--grad-story-3); }

.cover-label {
  position: absolute;
  top: 20px;
  left: 26px;
  display: inline-flex;
  align-items: center;
  padding: 5px 13px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.2);
  font-size: 11px;
  font-weight: 500;
  color: #fff;
}
.cover-kicker {
  position: relative;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  color: #fff;
  max-width: 78%;
}
.cover-mono {
  position: absolute;
  left: 26px;
  bottom: 18px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--on-dark-tag);
}

.news-body { display: flex; flex-direction: column; gap: 12px; padding: 24px 26px 26px; }
.news-meta { display: flex; align-items: center; gap: 10px; }
.news-date { font-family: var(--font-mono); font-size: 11px; color: var(--dim); }
.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--bg-chip);
  font-size: 10px;
  font-weight: 500;
  color: var(--nav);
}
.chip--brand { background: #e4edfa; color: var(--brand); }
.news-title { font-size: 17px; font-weight: 700; line-height: 1.5; color: var(--ink); }
.news-excerpt { font-size: 13px; line-height: 1.75; color: var(--muted); }

/* 焦点新闻 */
.featured {
  display: grid;
  grid-template-columns: 780px 1fr;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
}
.featured-cover { position: relative; height: 340px; background: var(--grad-focus); overflow: hidden; }
.featured-cover .cover-deco { width: 56%; right: 0; }
.featured-cover .cover-label { top: 44px; left: 44px; }
.featured-cover .cover-kicker { position: absolute; left: 44px; top: 96px; font-size: 34px; max-width: 70%; }
.featured-cover .cover-mono { left: 44px; bottom: 44px; font-size: 11px; }
.featured-body { display: flex; flex-direction: column; gap: 18px; padding: 44px; justify-content: center; }
.featured-title { font-size: 28px; font-weight: 700; line-height: 1.38; color: var(--ink); }
.featured-excerpt { font-size: 15px; line-height: 1.8; color: var(--muted); }

/* 分类筛选 */
.filters { display: flex; flex-wrap: wrap; gap: 10px; }
.filter {
  display: inline-flex;
  align-items: center;
  padding: 9px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: #fff;
  font-size: 13px;
  font-weight: 500;
  color: var(--nav);
  transition: all 0.16s ease;
}
.filter:hover { border-color: var(--brand); color: var(--brand); }
.filter.is-active { background: var(--brand); border-color: var(--brand); color: #fff; }

/* 订阅条 */
.digest {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  padding: 30px 36px;
  border-radius: var(--radius-panel);
  background: var(--bg-panel);
  border: 1px solid #d6e6ff;
}
.digest-text { display: flex; flex-direction: column; gap: 6px; }
.digest-title { font-size: 20px; font-weight: 700; color: var(--ink); }
.digest-sub { font-size: 14px; color: var(--muted); }

/* ---------- 13. 方案矩阵表 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; }
table.matrix { width: 100%; border-collapse: collapse; min-width: 960px; }
table.matrix th,
table.matrix td { padding: 20px 24px; text-align: left; vertical-align: middle; border-bottom: 1px solid var(--line-panel); }
table.matrix thead th {
  background: var(--bg-panel);
  font-size: 13px;
  font-weight: 500;
  color: var(--nav);
  white-space: nowrap;
}
table.matrix tbody tr:last-child td { border-bottom: 0; }
table.matrix tbody tr:hover { background: #fafcff; }
.matrix-name { font-size: 15px; font-weight: 700; color: var(--ink); }
.matrix-mono { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; color: var(--dim); margin-top: 4px; }
.matrix-cell { font-size: 14px; color: var(--muted); }
.matrix-cell--strong { font-weight: 500; color: var(--ink); }
.matrix-name-row { display: flex; align-items: center; gap: 8px; }

/* ---------- 14. 方案详情块 ---------- */
.detail { display: grid; grid-template-columns: 1fr 560px; gap: 64px; align-items: start; padding: 64px 0; border-top: 1px solid var(--line); }
.detail:first-of-type { border-top: 0; }
.detail-copy { display: flex; flex-direction: column; gap: 20px; }
.detail-no { display: flex; align-items: baseline; gap: 14px; font-family: var(--font-mono); }
.detail-no .num { font-size: 13px; font-weight: 500; color: var(--brand); }
.detail-no .en { font-size: 10px; letter-spacing: 0.12em; color: var(--dim); }
.detail-title { font-size: 30px; font-weight: 700; line-height: 1.32; color: var(--ink); }
.checklist { display: flex; flex-direction: column; gap: 10px; }
.checklist li { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; font-weight: 500; color: var(--ink); }
.checklist li::before {
  content: "";
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--brand);
}

.spec-panel { border: 1px solid var(--line); border-radius: var(--radius-card); overflow: hidden; background: #fff; }
.spec-panel .spec-head {
  padding: 18px 24px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--brand);
}
.spec-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 15px 24px; border-bottom: 1px solid var(--line-panel); }
.spec-row:last-child { border-bottom: 0; }
.spec-key { font-size: 14px; color: var(--muted); flex-shrink: 0; }
.spec-val { font-size: 14px; font-weight: 500; color: var(--ink); text-align: right; }

/* ---------- 15. 步骤 / 流程 ---------- */
.step-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 30px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
}
.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-icon);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
}
.step-title { font-size: 20px; font-weight: 700; color: var(--ink); }
.step-desc { font-size: 14px; line-height: 1.78; color: var(--muted); }

.sla-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 32px;
  padding: 26px 32px;
  border-radius: var(--radius-card);
  background: var(--bg-panel);
  border: 1px solid #d6e6ff;
}
.sla-label { font-size: 14px; font-weight: 700; color: var(--brand); }
.sla-item { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 500; color: var(--ink); }
.sla-item::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* ---------- 16. FAQ ---------- */
.faq-list { display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.faq-item { display: grid; grid-template-columns: 1fr; gap: 10px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.faq-q { display: flex; gap: 14px; font-size: 16px; font-weight: 700; color: var(--ink); }
.faq-q .n { font-family: var(--font-mono); color: var(--brand); font-weight: 700; flex-shrink: 0; }
.faq-a { font-size: 14px; line-height: 1.8; color: var(--muted); padding-left: 34px; }

/* ---------- 17. 联系通道 ---------- */
.channel-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 30px;
  border-radius: var(--radius-card);
  background: #fff;
  border: 1px solid var(--line);
}
.channel-label { font-size: 13px; color: var(--muted); }
.channel-value { font-family: var(--font-mono); font-size: 22px; font-weight: 700; color: var(--ink); word-break: break-all; }
.channel-note { font-size: 13px; line-height: 1.75; color: var(--muted); }

/* ---------- 18. 页标题区（内页） ---------- */
.page-head { background: var(--grad-hero); color: #fff; padding: 76px 0 84px; }
.breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 13px; color: rgba(255, 255, 255, 0.66); margin-bottom: 26px; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { font-family: var(--font-mono); opacity: 0.6; }
.breadcrumb .current { color: #fff; font-weight: 500; }
.page-head .eyebrow { color: var(--accent); }
.page-head .eyebrow::before { background: var(--accent); }
.page-head h1 { font-size: 46px; font-weight: 700; line-height: 1.24; color: #fff; margin-top: 14px; }
.page-head .lead { font-size: 16px; color: var(--on-dark-soft); margin-top: 16px; max-width: 900px; }

/* ---------- 19. CTA 区块 ---------- */
.cta-band { background: var(--grad-hero); color: #fff; text-align: center; padding: 84px 0; }
.cta-band .cta-inner { display: flex; flex-direction: column; align-items: center; gap: 22px; }
.cta-band h2 { font-size: 34px; font-weight: 700; line-height: 1.35; color: #fff; max-width: 900px; }
.cta-band p { font-size: 16px; color: var(--on-dark-soft); max-width: 780px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ---------- 20. 页脚 ---------- */
.site-footer { background: var(--footer-bg); color: var(--footer-text); padding: 64px 0 32px; }
.footer-main { display: grid; grid-template-columns: 520px 300px 220px 1fr; gap: 48px; }
.footer-brand { display: flex; flex-direction: column; gap: 20px; }
.footer-logo-chip { display: inline-flex; align-self: flex-start; padding: 12px 16px; border-radius: 8px; background: #fff; }
.footer-brand-text { display: flex; flex-direction: column; line-height: 1.3; }
.footer-brand-name { font-size: 19px; font-weight: 700; color: #23272c; }
.footer-brand-name-en { font-family: var(--font-en); font-size: 10px; font-weight: 600; color: #3e444c; }
.footer-desc { font-size: 13px; line-height: 1.8; }
.footer-icp { font-family: var(--font-mono); font-size: 11px; color: var(--footer-label); }

.footer-col { display: flex; flex-direction: column; gap: 14px; }
.footer-col h4 { font-size: 13px; font-weight: 700; color: var(--footer-head); }
.footer-col a,
.footer-col li { font-size: 13px; color: var(--footer-text); transition: color 0.16s ease; }
.footer-col a:hover { color: #fff; }
.footer-col .is-accent { color: var(--accent); font-weight: 500; }

.contact-row { display: flex; gap: 10px; font-size: 13px; }
.contact-row dt { flex-shrink: 0; color: var(--footer-label); }
.contact-row dd { margin: 0; font-family: var(--font-mono); }
.contact-row dd.is-cn { font-family: var(--font-cn); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 48px;
  padding-top: 26px;
  border-top: 1px solid var(--footer-line);
  font-size: 12px;
  color: var(--footer-label);
}
.footer-lang { display: inline-flex; padding: 3px; border-radius: var(--radius-pill); background: #141d2e; }
.footer-lang a { display: inline-flex; padding: 5px 14px; border-radius: var(--radius-pill); font-family: var(--font-mono); font-size: 11px; color: var(--footer-label); }
.footer-lang a.is-active { background: #223049; color: #fff; }

/* ---------- 21. 其它 ---------- */
.reserved-card { border-style: dashed; border-color: #c9d8ee; background: #fbfdff; }
.reserved-card .card-title { color: var(--brand); }
.reserved-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  font-size: 12px;
  color: var(--brand);
}

.section-foot { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; flex-wrap: wrap; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 10px 18px;
  background: var(--brand);
  color: #fff;
  z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- 22. 响应式 ---------- */
@media (max-width: 1600px) {
  :root { --gutter: 56px; }
  .hero-inner { grid-template-columns: 1fr 700px; gap: 48px; }
  .featured { grid-template-columns: 620px 1fr; }
  .detail { grid-template-columns: 1fr 460px; gap: 44px; }
  .footer-main { grid-template-columns: 420px 260px 200px 1fr; gap: 36px; }
}

@media (max-width: 1280px) {
  :root { --gutter: 40px; }
  .h1, .hero h1 { font-size: 44px; }
  .h2 { font-size: 32px; }
  .h3 { font-size: 28px; }
  .page-head h1 { font-size: 40px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-panel { max-width: 760px; }
  .featured { grid-template-columns: 1fr; }
  .detail { grid-template-columns: 1fr; gap: 32px; }
  .footer-main { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px; }
  .news-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--4, .grid--6 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 980px) {
  :root { --gutter: 28px; }
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-right .btn { display: none; }
  .section { padding: 68px 0; }
  .section--tight { padding: 56px 0; }
  .stats-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat + .stat::before { display: none; }
  .grid--2, .grid--3, .grid--4, .grid--6 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .h1, .hero h1 { font-size: 36px; }
  .h2 { font-size: 28px; }
  .h3 { font-size: 24px; }
  .h4 { font-size: 20px; }
  .page-head h1 { font-size: 32px; }
  .page-head { padding: 56px 0 60px; }
  .featured-cover { height: 260px; }
  .featured-cover .cover-kicker { font-size: 26px; top: 84px; }
  .featured-body { padding: 30px; }
  .featured-title { font-size: 22px; }
}

@media (max-width: 680px) {
  :root { --gutter: 20px; }
  body { font-size: 15px; }
  .section { padding: 52px 0; }
  .section--tight { padding: 44px 0; }
  .grid--2, .grid--3, .grid--4, .grid--6 { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 30px; }
  .stats-inner { grid-template-columns: 1fr; }
  .stat { padding: 22px 0; }
  .h1, .hero h1 { font-size: 30px; }
  .h2, .cta-band h2 { font-size: 24px; }
  .h3 { font-size: 22px; }
  .page-head h1 { font-size: 27px; }
  .hero { padding: 56px 0 60px; }
  .chain-row { grid-template-columns: 34px 1fr; row-gap: 4px; }
  .chain-spec { grid-column: 2; }
  .brand-name { font-size: 15px; }
  .brand-name-en { font-size: 8px; }
  .brand-mark { height: 26px; }
  .detail-title { font-size: 24px; }
  .faq-a { padding-left: 0; }
}

/* ---------- 23. 移动端菜单 ---------- */
@media (max-width: 980px) {
  .nav.is-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    position: fixed;
    top: 81px;
    left: 0;
    right: 0;
    max-height: calc(100vh - 81px);
    overflow-y: auto;
    padding: 12px var(--gutter) 32px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(10, 22, 40, 0.14);
  }
  .nav.is-open .nav-link {
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
    font-size: 17px;
  }
  .nav.is-open .nav-link:last-child { border-bottom: 0; }
  .nav.is-open .nav-cta {
    display: inline-flex;
    margin-top: 20px;
    padding: 13px 20px;
    border-radius: var(--radius-btn);
    background: var(--brand);
    color: #fff;
    font-weight: 500;
    text-align: center;
  }
  .nav-cta { display: none; }
}

@media (min-width: 981px) {
  .nav-cta { display: none; }
}

/* ==========================================================================
   24. 行业面板 / 通用辅助布局（第二轮补充）
   ========================================================================== */

/* ---- 网格叠加间距 ---- */
.grid + .grid { margin-top: 24px; }
.grid + .section-foot,
.plan-grid + .support-row { margin-top: 32px; }

/* ---- 区块标题与内容块的间距 ---- */
.section-head + .grid,
.section-head + .plan-grid,
.section-head + .split,
.section-head + .table-wrap,
.section-head + .faq-list,
.section-head + .sla-bar,
.section-head + .spec-strip,
.section-head + .anchor-bar,
.section-head + .digest,
.section-head + .news-grid,
.section-head + .featured,
.section-head + .filters { margin-top: 44px; }
.filters + .news-grid { margin-top: 30px; }
.section-foot + .news-grid { margin-top: 40px; }
.stats-bar + .section,
.section--muted + .section { margin-top: 0; }

/* ---- 卡片右上角 ---- */
.card-head-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

/* ---- 头部品牌名：桌面全称 / 移动简称 ---- */
.brand-name--short { display: none; }

/* ==========================================================================
   25. 移动端头部与溢出防护
   ========================================================================== */
@media (max-width: 980px) {
  .header-inner { gap: 16px; }
  .brand { flex: 0 1 auto; min-width: 0; }
  .brand-text { min-width: 0; }
  .brand-name,
  .brand-name-en { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .header-right { flex-shrink: 0; gap: 12px; }
  .lang-switch a { padding: 5px 10px; }
}

@media (max-width: 680px) {
  .brand-name--full { display: none; }
  .brand-name--short { display: block; }
  .brand-name-en { display: none; }
  .brand-mark { height: 28px; }
  .brand-name { font-size: 17px; }
  .lang-switch a { padding: 4px 9px; font-size: 11px; }
  .nav-toggle { width: 38px; height: 38px; }
}

/* 全站横向溢出兜底（不使用 overflow-x:hidden，避免破坏吸顶导航） */
.panel-block,
.plan-card,
.news-card,
.card,
.channel-card,
.step-card,
.featured,
.hero-inner,
.split,
.detail,
.footer-main { min-width: 0; }
.matrix-name,
.news-title,
.featured-title,
.plan-title,
.card-title,
.channel-value { overflow-wrap: anywhere; }

/* ---- 首页 Hero 面板表头（白底可读性） ---- */
.hero-panel .panel-head { background: var(--bg-panel); border-bottom: 1px solid var(--line); }
.hero-panel .panel-state { color: var(--brand); font-weight: 500; }

/* ---- 关于我们 分栏 ---- */
.split { display: grid; grid-template-columns: 1fr 640px; gap: 80px; align-items: start; }
.split-copy { display: flex; flex-direction: column; gap: 20px; }

.info-rows { border-top: 1px solid var(--line); }
.info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}
.info-key { font-size: 14px; color: var(--muted); }
.info-val { font-size: 15px; font-weight: 500; color: var(--ink); text-align: right; }
.info-val.is-brand { color: var(--brand); }

/* ---- 行业面板 ---- */
.panel-block { padding: 76px 0; border-top: 1px solid var(--line); scroll-margin-top: 100px; }
.panel-block:first-of-type { border-top: 0; }
.panel-block-head { display: flex; flex-direction: column; gap: 16px; max-width: 1180px; margin-bottom: 36px; }
.panel-block-head h3 { scroll-margin-top: 100px; }

.spec-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  margin-bottom: 34px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.spec-strip .cell { display: flex; flex-direction: column; gap: 7px; padding: 22px 20px; background: #fff; }
.spec-strip .val { font-family: var(--font-mono); font-size: 21px; font-weight: 700; line-height: 1.15; color: var(--ink); }
.spec-strip .val.is-brand { color: var(--brand); }
.spec-strip .key { font-size: 12px; color: var(--muted); }

.plan-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }

.plan-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}
.plan-card:hover { box-shadow: var(--shadow-lift); transform: translateY(-3px); border-color: #cfe0f7; }

.plan-media { position: relative; aspect-ratio: 16 / 10; background: #fff; border-bottom: 1px solid var(--line); overflow: hidden; }
.plan-media img { width: 100%; height: 100%; }
.plan-media img.is-cover { object-fit: cover; }
.plan-media img.is-fit { object-fit: contain; padding: 26px; }
.plan-media--tint { background: var(--bg-panel); }

.plan-body { display: flex; flex-direction: column; gap: 14px; padding: 26px; }
.plan-head { display: flex; align-items: baseline; gap: 12px; }
.plan-no { font-family: var(--font-mono); font-size: 13px; font-weight: 700; color: var(--brand); flex-shrink: 0; }
.plan-title { font-size: 19px; font-weight: 700; line-height: 1.42; color: var(--ink); }
.plan-desc { font-size: 14px; line-height: 1.78; color: var(--muted); }
.plan-body .checklist li { font-size: 13.5px; }

/* ---- 行业锚点导航 ---- */
.anchor-bar { display: flex; flex-wrap: wrap; gap: 10px; }
.anchor-bar .filter { padding: 8px 16px; font-size: 13px; }
.anchor-bar .filter .mono { font-family: var(--font-mono); font-size: 10px; margin-right: 8px; opacity: 0.7; }

/* ---- 能力支撑标签行 ---- */
.support-row { display: flex; flex-wrap: wrap; gap: 10px; }

/* ---- 焦点新闻的次级信息行 ---- */
.featured-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

@media (max-width: 1600px) {
  .split { grid-template-columns: 1fr 520px; gap: 56px; }
  .spec-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 1280px) {
  .split { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 980px) {
  .panel-block { padding: 56px 0; }
  .plan-grid { grid-template-columns: 1fr; }
  .spec-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .spec-strip { grid-template-columns: 1fr; }
  .plan-body { padding: 22px; }
  .plan-media img.is-fit { padding: 18px; }
}

/* ---------- 24. 404 页快捷入口 ---------- */
.quick-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}
.quick-link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: 30px 28px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--bg);
  text-decoration: none;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.quick-link strong {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}
.quick-link span {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}
.quick-link::after {
  content: "";
  width: 24px;
  height: 2px;
  margin-top: 4px;
  background: var(--brand);
  transition: width .2s ease;
}
.quick-link:hover {
  border-color: var(--brand);
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(1, 77, 178, .12);
}
.quick-link:hover::after { width: 44px; }

@media (max-width: 980px) {
  .quick-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
  .quick-links { grid-template-columns: 1fr; gap: 16px; }
  .quick-link { padding: 22px 20px; }
}