@charset "UTF-8";
/* ==========================================================================
   星屹商务 · 官网样式表
   配色方案：深青岩 + 暖砂金（v1.0 已通过 WCAG 验证）
   --------------------------------------------------------------------------
   用色铁律（改动前必读）：
   1. 全站主色仅 3 个：深青岩 #2A4A52、暖砂金 #D4AF6A、米白 #F7F5F0
   2. 暖砂金 #D4AF6A 在米白底对比度仅 1.90:1，【禁止】用于任何文字
      - 正确用法：作按钮/标签底色，上压深炭黑 #222222（7.68:1 AAA）
      - 需要金色文字时，一律用 --xy-accent-ink #7E6136（5.28:1 AA）
   3. 所有颜色引用变量，禁止在组件里硬编码 hex
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 主色 · 深青岩（太行山石 / 晋祠古柏 / 晋商青砖） */
  --xy-primary:        #2A4A52;
  --xy-primary-dark:   #16333A;
  --xy-primary-hover:  #35606B;
  --xy-primary-soft:   #EDF2F3;
  --xy-primary-tint:   #DDE6E8;

  /* 辅助色 · 暖砂金（黄土高原 / 晋商古铜钱 / 古建木构） */
  --xy-accent:         #D4AF6A;
  --xy-accent-soft:    #E7D2A8;
  --xy-accent-ink:     #7E6136;   /* 金色文字专用 */

  /* 背景与文字 */
  --xy-bg:             #F7F5F0;
  --xy-surface:        #FFFFFF;
  --xy-title:          #222222;
  --xy-text:           #333333;
  --xy-muted:          #666666;
  --xy-line:           #E3E0D8;

  /* 语义色（不含在 3 个主色内，仅在必要处出现） */
  --xy-success:        #1D9E75;
  --xy-warning:        #BA7517;
  --xy-danger:         #A32D2D;
  --xy-link:           #185FA5;

  /* 字体 */
  --font-serif: Georgia, "Times New Roman", "Songti SC", "STSong", "Noto Serif SC", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;

  /* 尺度 */
  --xy-radius:         10px;
  --xy-radius-lg:      14px;
  --xy-nav-h:          64px;
  --xy-max:            1200px;

  /* 动效 */
  --xy-ease: cubic-bezier(.22,.61,.36,1);
}

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

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

body {
  margin: 0;
  background: var(--xy-bg);
  color: var(--xy-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  margin: 0 0 14px;
  color: var(--xy-title);
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: .5px;
}

h1 { font-size: 34px; }
h2 { font-size: 26px; }
h3 { font-size: 20px; }
h4 { font-size: 17px; }

p { margin: 0 0 14px; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--xy-link);
  text-decoration: none;
  transition: color .18s var(--xy-ease);
}
a:hover { color: var(--xy-primary); }

ul { margin: 0 0 14px; padding-left: 20px; }
li { margin-bottom: 6px; }

:focus-visible {
  outline: 2px solid var(--xy-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
}

/* ---------- 3. 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--xy-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 64px 0; }
.section--tint { background: var(--xy-primary-soft); }
.section--ip { background: var(--xy-accent-soft); }

.sec-head { max-width: 760px; margin-bottom: 36px; }
.sec-head--center { margin-left: auto; margin-right: auto; text-align: center; }

.sec-eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--xy-accent-ink);
  font-weight: 500;
  margin-bottom: 10px;
}

.sec-sub { color: var(--xy-muted); font-size: 15px; margin: 0; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--xy-primary-dark);
  color: #fff;
  padding: 12px 20px;
  z-index: 999;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

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

/* ---------- 4. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: var(--xy-radius);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color .18s var(--xy-ease),
              color .18s var(--xy-ease),
              transform .18s var(--xy-ease),
              box-shadow .18s var(--xy-ease);
}
.btn:hover { transform: translateY(-1px); }

/* 主 CTA：砂金底 + 深炭黑字（7.68:1 AAA） */
.btn--gold {
  background: var(--xy-accent);
  color: var(--xy-title);
}
.btn--gold:hover { background: #C9A25C; color: var(--xy-title); }

.btn--primary {
  background: var(--xy-primary);
  color: #fff;
}
.btn--primary:hover { background: var(--xy-primary-hover); color: #fff; }

.btn--ghost {
  background: transparent;
  border-color: rgba(255,255,255,.42);
  color: #fff;
}
.btn--ghost:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.7);
  color: #fff;
}

.btn--outline {
  background: transparent;
  border-color: var(--xy-primary);
  color: var(--xy-primary);
}
.btn--outline:hover { background: var(--xy-primary); color: #fff; }

/* ---------- 5. 顶部导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--xy-primary);
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.nav-inner {
  display: flex;
  align-items: center;
  height: var(--xy-nav-h);
  gap: 32px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex: none;
}
.logo b {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 3px;
}
.logo span {
  font-size: 11px;
  letter-spacing: 1px;
  color: rgba(255,255,255,.55);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav-links a {
  display: flex;
  align-items: center;
  height: 44px;
  padding: 0 14px;
  font-size: 15px;
  color: rgba(255,255,255,.72);
  border-bottom: 2px solid transparent;
}

.nav-links a:hover { color: #fff; }

.nav-links a[aria-current="page"] {
  color: #fff;
  border-bottom-color: var(--xy-accent);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  background: transparent;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: #fff;
  position: relative;
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1.5px;
  background: #fff;
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after  { top: 6px; }

/* ---------- 6. Hero ---------- */
.hero {
  background: var(--xy-primary);
  color: #fff;
  padding: 72px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -40px;
  width: 460px;
  height: 260px;
  background: var(--xy-primary-hover);
  opacity: .22;
  border-radius: 50%;
}
.hero-inner { position: relative; z-index: 2; max-width: 780px; }

.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--xy-accent);
  border: 1px solid rgba(212,175,106,.45);
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 20px;
}

.hero h1 {
  color: #fff;
  font-size: 40px;
  margin-bottom: 18px;
  line-height: 1.4;
}

.hero-lead {
  font-size: 16.5px;
  line-height: 1.95;
  color: rgba(255,255,255,.82);
  margin-bottom: 30px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- 7. 数据条 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--xy-surface);
  border: 1px solid var(--xy-line);
  border-radius: var(--xy-radius-lg);
  overflow: hidden;
}
.stats div {
  padding: 26px 18px;
  text-align: center;
  border-right: 1px solid var(--xy-line);
}
.stats div:last-child { border-right: none; }
.stats b {
  display: block;
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--xy-primary);
  line-height: 1.25;
}
.stats small { font-size: 13px; color: var(--xy-muted); }

/* ---------- 8. 业务卡片 ---------- */
.biz-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.biz-card {
  background: var(--xy-surface);
  border: 1px solid var(--xy-line);
  border-radius: var(--xy-radius);
  border-top: 3px solid var(--xy-primary);
  padding: 26px 26px 22px;
  transition: transform .2s var(--xy-ease), box-shadow .2s var(--xy-ease);
}
.biz-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(22,51,58,.10);
}
.biz-card--accent { border-top-color: var(--xy-accent); }
.biz-card--wide { grid-column: 1 / -1; }

.biz-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  margin-bottom: 14px;
  border-radius: 6px;
  background: var(--xy-primary-soft);
  color: var(--xy-primary);
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
}
.biz-card--accent .biz-num { background: var(--xy-accent-soft); color: var(--xy-accent-ink); }

.biz-card h3 { font-size: 19px; margin-bottom: 10px; }
.biz-card p { font-size: 14.5px; color: var(--xy-body, var(--xy-text)); margin-bottom: 14px; }

.tag-list { display: flex; flex-wrap: wrap; gap: 7px; list-style: none; margin: 0; padding: 0; }
.tag-list li {
  margin: 0;
  font-size: 12.5px;
  padding: 3px 10px;
  border-radius: 5px;
  background: var(--xy-primary-soft);
  color: var(--xy-primary);
}
.biz-card--accent .tag-list li { background: var(--xy-accent-soft); color: var(--xy-accent-ink); }

.svc-list {
  list-style: none;
  margin: 0 0 4px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 20px;
}
.svc-list li {
  margin: 0;
  padding-left: 18px;
  position: relative;
  font-size: 14.5px;
  color: var(--xy-text);
}
.svc-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 12px;
  width: 7px; height: 7px;
  border-radius: 2px;
  background: var(--xy-accent);
}

/* 业务详版区块（核心业务页） */
.svc {
  background: var(--xy-surface);
  border: 1px solid var(--xy-line);
  border-left: 3px solid var(--xy-primary);
  border-radius: var(--xy-radius-lg);
  padding: 30px 32px;
  margin-bottom: 20px;
}
.svc--new { border-left-color: var(--xy-accent); }

.svc-head {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.svc-head .biz-num { margin-bottom: 0; }
.svc-head h2 { margin: 0; font-size: 23px; }

.svc-badge {
  font-size: 11.5px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 4px;
  background: var(--xy-accent);
  color: var(--xy-title);
}

.svc-body p { font-size: 15px; line-height: 1.95; margin-bottom: 14px; }

/* ---------- 9. 优势列表 ---------- */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.adv-item {
  background: var(--xy-surface);
  border: 1px solid var(--xy-line);
  border-radius: var(--xy-radius);
  padding: 22px;
}
.adv-item h2, .adv-item h3 { margin-bottom: 8px; font-size: 16px; }
.adv-item p { font-size: 14.5px; color: var(--xy-muted); margin: 0; }

/* ---------- 10. IP 板块 ---------- */
.ip-wrap {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}
.ip-mascot-card {
  background: var(--xy-surface);
  border: 1px solid #D8C194;
  border-radius: var(--xy-radius-lg);
  padding: 22px;
  text-align: center;
}
.ip-mascot-card svg { margin: 0 auto 12px; }
.ip-mascot-card b { font-family: var(--font-serif); font-size: 17px; color: var(--xy-title); }
.ip-mascot-card small { display: block; font-size: 12.5px; color: var(--xy-accent-ink); margin-top: 4px; }

.videos { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.video-card {
  position: relative;
  aspect-ratio: 9 / 16;
  border-radius: var(--xy-radius);
  overflow: hidden;
  border: 1px solid rgba(22,51,58,.18);
  background: var(--xy-primary);
}
.video-card svg { width: 100%; height: 100%; }
.video-ep {
  position: absolute;
  left: 8px; top: 8px;
  background: var(--xy-accent);
  color: var(--xy-title);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
}
.video-cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 22px 10px 10px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(180deg, rgba(22,51,58,0) 0%, rgba(22,51,58,.9) 100%);
}

/* ---------- 11. 案例 / 新闻 ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }

.card {
  background: var(--xy-surface);
  border: 1px solid var(--xy-line);
  border-radius: var(--xy-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .2s var(--xy-ease), box-shadow .2s var(--xy-ease);
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(22,51,58,.10);
}
.card-thumb {
  height: 132px;
  background: var(--xy-primary-tint);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--xy-primary);
  font-size: 13px;
}
.card-body { padding: 20px 22px 22px; flex: 1; }
.card-tag {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 4px;
  background: var(--xy-accent-soft);
  color: var(--xy-accent-ink);
  margin-bottom: 10px;
}
.card h3 { font-size: 17px; margin-bottom: 8px; }
.card p { font-size: 14px; color: var(--xy-muted); margin: 0; }

.news-item {
  background: var(--xy-surface);
  border: 1px solid var(--xy-line);
  border-radius: var(--xy-radius);
  padding: 22px 24px;
  margin-bottom: 14px;
}
.news-item:last-child { margin-bottom: 0; }
.news-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--xy-muted);
  margin-bottom: 8px;
}
.news-meta time { font-variant-numeric: tabular-nums; }
.news-item h2 { font-size: 20px; margin-bottom: 8px; }
.news-item h3 { font-size: 17px; margin-bottom: 8px; }
.news-item p { font-size: 14.5px; line-height: 1.9; margin: 0; }
.news-lead {
  background: var(--xy-surface);
  border: 1px solid var(--xy-line);
  border-left: 3px solid var(--xy-accent);
  border-radius: var(--xy-radius);
  padding: 26px 28px;
  margin-bottom: 22px;
}

/* ---------- 11.5 新闻列表 / 详情（SSG 生成页） ---------- */
.news-list {
  display: grid;
  gap: 14px;
}
.news-cover {
  display: block;
  margin: -22px -24px 16px;
  border-radius: var(--xy-radius) var(--xy-radius) 0 0;
  overflow: hidden;
  background: var(--xy-primary-soft);
}
.news-cover img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.news-more {
  display: inline-block;
  margin-top: 10px;
  color: var(--xy-accent-ink);
  font-weight: 600;
  font-size: 14px;
}
.news-more:hover { text-decoration: underline; }
.news-detail { padding: 36px 0 56px; }
.news-figure {
  margin: 18px 0;
  border-radius: var(--xy-radius);
  overflow: hidden;
  background: var(--xy-primary-soft);
}
.news-figure img { display: block; width: 100%; height: auto; }
.news-body {
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--xy-body);
  margin-top: 14px;
}
.news-body p { margin: 0 0 1em; }
.news-body h2, .news-body h3 { color: var(--xy-title); margin: 1.4em 0 .6em; }
.news-body h2 { font-size: 20px; }
.news-body h3 { font-size: 17px; }
.news-body ul, .news-body ol { margin: 0 0 1em; padding-left: 1.4em; }
.news-body li { margin: .4em 0; }
.news-body img { max-width: 100%; height: auto; border-radius: var(--xy-radius); }
.news-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.news-tags span {
  background: var(--xy-primary-soft);
  color: var(--xy-primary);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
}
.news-empty {
  padding: 44px 20px;
  text-align: center;
  color: var(--xy-muted);
  background: var(--xy-surface);
  border: 1px dashed var(--xy-line);
  border-radius: var(--xy-radius);
}

/* ---------- 12. 面包屑 ---------- */
.crumb {
  background: var(--xy-primary-soft);
  border-bottom: 1px solid var(--xy-line);
  font-size: 13.5px;
}
.crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 13px 0;
  color: var(--xy-muted);
}
.crumb a { color: var(--xy-primary); }
.crumb li[aria-current="page"] { color: var(--xy-title); }

/* ---------- 13. 内容排版 ---------- */
.prose { max-width: 820px; }
.prose h2 { margin-top: 40px; font-size: 23px; }
.prose h3 { margin-top: 28px; font-size: 18px; }
.prose p { font-size: 15.5px; line-height: 1.95; margin-bottom: 16px; }
.prose ul { font-size: 15.5px; line-height: 1.95; }

.page-head {
  background: var(--xy-primary);
  color: #fff;
  padding: 52px 0 56px;
}
.page-head h1 { color: #fff; font-size: 34px; margin-bottom: 12px; }
.page-head p { color: rgba(255,255,255,.8); font-size: 15.5px; margin: 0; max-width: 680px; }

/* ---------- 14. CTA 收口 ---------- */
.cta-band {
  background: var(--xy-primary-dark);
  border-radius: var(--xy-radius-lg);
  padding: 40px 44px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  color: #fff;
}
.cta-band h2 { color: #fff; margin: 0 0 6px; font-size: 24px; }
.cta-band p { color: rgba(255,255,255,.72); margin: 0; font-size: 14.5px; }
.cta-band .btn { margin-left: auto; }

/* ---------- 15. 页脚 ---------- */
.footer {
  background: var(--xy-primary-dark);
  color: rgba(255,255,255,.7);
  padding: 52px 0 28px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 28px;
  padding-bottom: 30px;
}
.footer h3 {
  color: #fff;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}
.footer ul { list-style: none; margin: 0; padding: 0; }
.footer ul li { margin-bottom: 8px; font-size: 14px; }
.footer ul a { color: rgba(255,255,255,.66); }
.footer ul a:hover { color: var(--xy-accent); }
.footer .about-txt { font-size: 14px; line-height: 1.9; margin: 0 0 14px; }
.footer-contact li { color: rgba(255,255,255,.7); }

.footer-line {
  border-top: 1px solid rgba(212,175,106,.32);
  padding-top: 22px;
}
.footer-line .biz-overview {
  font-size: 14px;
  color: rgba(255,255,255,.82);
  margin-bottom: 10px;
  letter-spacing: .3px;
}
.footer-line .copy { font-size: 13px; color: rgba(255,255,255,.48); margin: 0; }

/* ---------- 16. 企业微信二维码 ---------- */
.qr-card {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 36px;
  align-items: center;
  padding: 30px;
  background: var(--xy-surface);
  border: 1px solid var(--xy-line);
  border-radius: var(--xy-radius-lg);
}
.qr-figure {
  margin: 0;
  padding: 12px;
  text-align: center;
  background: #FFFFFF;
  border: 1px solid var(--xy-line);
  border-radius: var(--xy-radius);
}
.qr-figure img {
  display: block;
  width: 100%;
  max-width: 246px;
  height: auto;
  margin: 0 auto;
}
.qr-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--xy-muted);
  letter-spacing: .2px;
}
.qr-body h3 {
  font-size: 19px;
  line-height: 1.5;
  color: var(--xy-title);
  margin-bottom: 14px;
}
.qr-list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.qr-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--xy-text);
}
.qr-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--xy-accent);
}
.qr-list b { color: var(--xy-title); font-weight: 600; }
.qr-note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--xy-line);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--xy-muted);
}
.qr-note a {
  color: var(--xy-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 17. 响应式 ---------- */
@media (max-width: 1024px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stats div:nth-child(2) { border-right: none; }
  .stats div:nth-child(1),
  .stats div:nth-child(2) { border-bottom: 1px solid var(--xy-line); }
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .ip-wrap { grid-template-columns: 260px minmax(0, 1fr); gap: 24px; }
  .qr-card { grid-template-columns: 240px minmax(0, 1fr); gap: 26px; padding: 24px; }
}

@media (max-width: 768px) {
  h1 { font-size: 27px; }
  h2 { font-size: 22px; }
  .hero h1 { font-size: 28px; }
  .page-head h1 { font-size: 27px; }
  .section { padding: 46px 0; }
  .container { padding: 0 18px; }

  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    left: 0; right: 0;
    top: var(--xy-nav-h);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-left: 0;
    padding: 8px 18px 16px;
    background: var(--xy-primary-dark);
    border-bottom: 1px solid rgba(255,255,255,.1);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a {
    height: 48px;
    padding: 0 4px;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .nav-links a[aria-current="page"] {
    color: var(--xy-accent);
    border-bottom-color: rgba(255,255,255,.08);
  }

  .biz-grid { grid-template-columns: minmax(0, 1fr); }
  .adv-grid { grid-template-columns: minmax(0, 1fr); }
  .card-grid { grid-template-columns: minmax(0, 1fr); }
  .videos { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .ip-wrap { grid-template-columns: minmax(0, 1fr); text-align: left; }
  .svc-list { grid-template-columns: minmax(0, 1fr); }
  .qr-card {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 22px;
  }
  .qr-figure { max-width: 300px; margin: 0 auto; }
  .qr-body h3 { font-size: 17.5px; }
  .cta-band { padding: 30px 24px; }
  .cta-band .btn { margin-left: 0; width: 100%; }
  .prose p, .prose ul { font-size: 15px; }
}

@media (max-width: 480px) {
  .hero { padding: 52px 0 60px; }
  .hero-actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .videos { gap: 10px; }
  .stats div { padding: 20px 12px; }
  .stats b { font-size: 27px; }
}

/* ---------- 18. 滚动进场 ----------
   仅在 <html class="js-reveal"> 时隐藏初始状态，
   确保禁用 JS 或爬虫抓取时内容始终可见。            */
.js-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s var(--xy-ease), transform .5s var(--xy-ease);
}
.js-reveal [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .js-reveal [data-reveal] { opacity: 1; transform: none; }
}