/* ============================================
   诺比小芯官网 全局样式
   主色 #1E5EFF | 深蓝 #0B2B66 | 强调橙 #FF7A1A
   ============================================ */
:root {
  --primary: #1E5EFF;
  --primary-dark: #0B2B66;
  --primary-light: #EAF0FF;
  --accent: #FF7A1A;
  --bg: #F7F9FC;
  --white: #FFFFFF;
  --text: #333333;
  --text-sub: #6B7280;
  --border: #E5E9F2;
  --radius: 12px;
  --shadow: 0 4px 16px rgba(30, 94, 255, 0.08);
  --shadow-hover: 0 12px 32px rgba(30, 94, 255, 0.16);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--white); font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}
.site-header.scrolled { box-shadow: 0 2px 12px rgba(11, 43, 102, 0.08); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; }
.logo img { height: 32px; width: auto; object-fit: contain; }
.nav-menu { display: flex; align-items: center; gap: 36px; }
.nav-menu a { font-size: 15px; color: var(--text); position: relative; padding: 6px 0; transition: color 0.2s; }
.nav-menu a:hover, .nav-menu a.active { color: var(--primary); }
.nav-menu a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 2.5px; border-radius: 2px; background: var(--primary);
}
.nav-cta {
  padding: 6px 0; border-radius: 0; font-size: 15px; font-weight: 500;
  background: transparent; color: var(--text);
  border: none; transition: color 0.2s;
}
.nav-cta:hover { color: var(--primary); transform: none; }
/* nav-cta 现在与其他导航项统一样式，不再隐藏下划线 */
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.hamburger span { width: 24px; height: 2px; background: var(--primary-dark); border-radius: 2px; transition: all 0.3s; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端抽屉 */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  width: 100%;
  height: calc(100vh - 68px);
  background-color: #ffffff;
  z-index: 1001;
  padding: 24px;
  flex-direction: column;
  gap: 4px;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
  box-sizing: border-box;
  box-shadow: 4px 0 20px rgba(0,0,0,.12);
}
.mobile-drawer.open { transform: translateX(0); }
.mobile-drawer a {
  display: block; padding: 14px 8px; font-size: 17px;
  border-bottom: 1px solid #e5e9f2; color: #333;
  background: #fff;
}
.mobile-drawer a.active { color: var(--primary); font-weight: 600; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, #EEF4FF 0%, #FFFFFF 100%);
  padding: 88px 0 72px; overflow: hidden; position: relative;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary-light); color: var(--primary);
  font-size: 13px; padding: 6px 14px; border-radius: 999px; margin-bottom: 20px;
}
.hero-badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--primary); }
.hero h1 { font-size: 42px; line-height: 1.3; color: var(--primary-dark); font-weight: 700; margin-bottom: 18px; }
.hero h1 em { font-style: normal; color: var(--primary); }
.hero-sub { font-size: 17px; color: var(--text-sub); margin-bottom: 32px; max-width: 520px; }
.btn-group { display: flex; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 30px; border-radius: 10px; font-size: 16px; font-weight: 500; transition: all 0.25s; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(30, 94, 255, 0.3); }
.btn-primary:hover { background: #1749CC; transform: translateY(-2px); }
.btn-outline { border: 1.5px solid var(--primary); color: var(--primary); background: #fff; }
.btn-outline:hover { background: var(--primary-light); transform: translateY(-2px); }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }

/* Hero 右侧插画（纯 CSS 卡片堆叠） */
.hero-visual { position: relative; height: 360px; }
.float-card {
  position: absolute; background: #fff; border-radius: 14px;
  box-shadow: 0 10px 40px rgba(11, 43, 102, 0.12);
  padding: 18px 22px; display: flex; align-items: center; gap: 14px;
  animation: floatY 4s ease-in-out infinite;
}
.float-card .fc-icon { width: 42px; height: 42px; border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.float-card .fc-title { font-size: 15px; font-weight: 600; color: var(--primary-dark); }
.float-card .fc-sub { font-size: 12px; color: var(--text-sub); }
.fc-1 { top: 8%; left: 6%; animation-delay: 0s; }
.fc-2 { top: 38%; right: 2%; animation-delay: 1.2s; }
.fc-3 { bottom: 6%; left: 16%; animation-delay: 2.4s; }
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.hero-ring {
  position: absolute; inset: 0; margin: auto; width: 300px; height: 300px;
  border-radius: 50%; border: 1.5px dashed rgba(30, 94, 255, 0.25);
  animation: spin 30s linear infinite;
}
.hero-ring::after {
  content: ""; position: absolute; top: -6px; left: 50%; width: 12px; height: 12px;
  border-radius: 50%; background: var(--primary);
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 通用 Section ---------- */
.section { padding: 80px 0; }
.section.alt { background: var(--bg); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.section-head .tag { display: inline-block; font-size: 13px; color: var(--primary); background: var(--primary-light); padding: 5px 14px; border-radius: 999px; margin-bottom: 14px; }
.section-head h2 { font-size: 32px; color: var(--primary-dark); font-weight: 700; margin-bottom: 12px; }
.section-head p { color: var(--text-sub); font-size: 16px; }

/* ---------- 卡片网格 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }

.biz-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 36px 30px; box-shadow: var(--shadow); transition: all 0.3s; position: relative; overflow: hidden;
  display: flex; flex-direction: column;
}
.biz-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(30, 94, 255, 0.3); }
.biz-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--primary), #6C9CFF); opacity: 0; transition: opacity 0.3s; }
.biz-card:hover::before { opacity: 1; }
.biz-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 22px; }
.biz-card h3 { font-size: 20px; color: var(--primary-dark); margin-bottom: 12px; }
.biz-card p { font-size: 15px; color: var(--text-sub); flex: 1; }
.biz-card .link-more { margin-top: 20px; color: var(--primary); font-size: 15px; font-weight: 500; display: inline-flex; align-items: center; gap: 6px; }
.biz-card .link-more::after { content: "→"; transition: transform 0.2s; }
.biz-card:hover .link-more::after { transform: translateX(4px); }

.adv-card { background: #fff; border-radius: var(--radius); padding: 30px 24px; text-align: center; border: 1px solid var(--border); transition: all 0.3s; }
.adv-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.adv-card .adv-icon { width: 52px; height: 52px; margin: 0 auto 18px; border-radius: 50%; background: var(--primary-light); display: flex; align-items: center; justify-content: center; }
.adv-card h4 { font-size: 17px; color: var(--primary-dark); margin-bottom: 8px; }
.adv-card p { font-size: 14px; color: var(--text-sub); }

/* ---------- 合作流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; }
.step-item { text-align: center; position: relative; padding: 0 10px; }
.step-num {
  width: 48px; height: 48px; margin: 0 auto 16px; border-radius: 50%;
  background: var(--primary); color: #fff; font-size: 20px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(30, 94, 255, 0.3);
}
.step-item h4 { font-size: 17px; color: var(--primary-dark); margin-bottom: 8px; }
.step-item p { font-size: 14px; color: var(--text-sub); }
.step-item:not(:last-child)::after {
  content: ""; position: absolute; top: 24px; left: calc(50% + 40px); width: calc(100% - 80px);
  border-top: 2px dashed rgba(30, 94, 255, 0.3);
}

/* ---------- CTA 条 ---------- */
.cta-band { background: linear-gradient(120deg, var(--primary-dark), #143C8F 60%, var(--primary)); border-radius: 20px; padding: 56px 48px; text-align: center; color: #fff; }
.cta-band h2 { font-size: 30px; margin-bottom: 12px; }
.cta-band p { color: rgba(255, 255, 255, 0.85); margin-bottom: 28px; font-size: 16px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--primary-dark); color: rgba(255, 255, 255, 0.75); padding: 56px 0 24px; margin-top: 80px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255, 255, 255, 0.12); }
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; }
.footer-col h5 { color: #fff; font-size: 16px; margin-bottom: 18px; font-weight: 600; }
.footer-col a, .footer-col li { display: block; font-size: 14px; margin-bottom: 12px; color: rgba(255, 255, 255, 0.65); transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { padding-top: 24px; text-align: center; font-size: 13px; color: rgba(255, 255, 255, 0.45); }
.footer-bottom a { color: inherit; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 子页 Banner ---------- */
.page-banner { background: linear-gradient(120deg, #EEF4FF, #F8FBFF 70%); padding: 64px 0 56px; border-bottom: 1px solid var(--border); }
.page-banner h1 { font-size: 36px; color: var(--primary-dark); margin-bottom: 12px; }
.page-banner p { color: var(--text-sub); font-size: 17px; max-width: 680px; }
.breadcrumb { font-size: 13px; color: var(--text-sub); margin-bottom: 18px; }
.breadcrumb a { color: var(--primary); }

/* ---------- 公有云页 ---------- */
.auth-band { display: flex; gap: 24px; flex-wrap: wrap; margin-top: 28px; }
.auth-chip {
  display: flex; align-items: center; gap: 12px; background: #fff; border: 1px solid var(--border);
  border-radius: 12px; padding: 14px 24px; box-shadow: var(--shadow);
}
.auth-chip .ac-logo { width: 40px; height: 40px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 800; color: #fff; font-size: 13px; }
.auth-chip b { display: block; font-size: 15px; color: var(--primary-dark); }
.auth-chip span { font-size: 12px; color: var(--text-sub); }

.product-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px; transition: all 0.3s; }
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.product-card .pc-icon { width: 46px; height: 46px; border-radius: 11px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.product-card h4 { font-size: 17px; color: var(--primary-dark); margin-bottom: 8px; }
.product-card p { font-size: 14px; color: var(--text-sub); }

.price-compare { display: grid; grid-template-columns: 1fr auto 1fr; gap: 28px; align-items: stretch; max-width: 820px; margin: 0 auto; }
.price-box { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 36px 32px; text-align: center; }
.price-box.deal { border: 2px solid var(--accent); position: relative; box-shadow: 0 12px 36px rgba(255, 122, 26, 0.15); }
.price-box.deal .ribbon {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff; font-size: 13px; padding: 4px 18px; border-radius: 999px; white-space: nowrap;
}
.price-box .pb-label { font-size: 15px; color: var(--text-sub); margin-bottom: 10px; }
.price-box .pb-value { font-size: 44px; font-weight: 800; color: var(--primary-dark); line-height: 1.2; }
.price-box.deal .pb-value { color: var(--accent); }
.price-box .pb-note { font-size: 13px; color: var(--text-sub); margin-top: 10px; }
.price-vs { display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 800; color: var(--text-sub); }

.mode-card { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 36px 32px; transition: all 0.3s; }
.mode-card:hover { box-shadow: var(--shadow-hover); border-color: rgba(30, 94, 255, 0.35); }
.mode-card .mc-head { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.mode-card .mc-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; }
.mode-card h3 { font-size: 20px; color: var(--primary-dark); }
.mode-card .mc-tag { font-size: 12px; color: var(--primary); background: var(--primary-light); border-radius: 999px; padding: 3px 10px; }
.mode-card ul { display: flex; flex-direction: column; gap: 12px; }
.mode-card li { font-size: 14.5px; color: var(--text); padding-left: 26px; position: relative; }
.mode-card li::before {
  content: "✓"; position: absolute; left: 0; top: 0; width: 18px; height: 18px;
  background: var(--primary-light); color: var(--primary); border-radius: 50%;
  font-size: 12px; display: flex; align-items: center; justify-content: center; margin-top: 3px;
}

/* ---------- Token 工厂 ---------- */
.model-card {
  background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 30px 28px;
  transition: all 0.3s; display: flex; flex-direction: column; gap: 16px;
}
.model-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: rgba(30, 94, 255, 0.35); }
.model-head { display: flex; align-items: center; gap: 14px; }
.model-avatar { width: 50px; height: 50px; border-radius: 13px; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 16px; flex-shrink: 0; }
.model-head h3 { font-size: 19px; color: var(--primary-dark); line-height: 1.3; }
.model-head .vendor { font-size: 13px; color: var(--text-sub); }
.model-desc { font-size: 14px; color: var(--text-sub); min-height: 44px; }
.model-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.model-tags span { font-size: 12px; padding: 4px 12px; border-radius: 999px; background: var(--primary-light); color: var(--primary); }
.model-specs { display: grid; grid-template-columns: 1fr 1fr 1fr; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.model-specs .spec { padding: 12px 8px; text-align: center; background: var(--bg); }
.model-specs .spec:not(:last-child) { border-right: 1px solid var(--border); }
.model-specs .spec b { display: block; font-size: 15px; color: var(--primary-dark); }
.model-specs .spec i { font-style: normal; font-size: 12px; color: var(--text-sub); }
.model-actions { display: flex; gap: 12px; margin-top: auto; }
.model-actions .btn { flex: 1; padding: 10px 0; font-size: 14px; border-radius: 8px; }

.api-panel { background: #0E1B33; border-radius: 16px; padding: 32px; color: #D7E3FF; overflow: hidden; }
.api-panel h3 { color: #fff; font-size: 19px; margin-bottom: 6px; }
.api-panel .api-sub { font-size: 14px; color: rgba(215, 227, 255, 0.6); margin-bottom: 22px; }
.code-tabs { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.code-tab { padding: 7px 18px; border-radius: 8px; font-size: 13px; color: rgba(215, 227, 255, 0.7); background: rgba(255, 255, 255, 0.06); transition: all 0.2s; }
.code-tab.active { background: var(--primary); color: #fff; }
.code-block { position: relative; background: #091426; border-radius: 12px; border: 1px solid rgba(255, 255, 255, 0.08); }
.code-block pre { padding: 22px; overflow-x: auto; font-size: 13.5px; line-height: 1.7; font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; color: #C9E0FF; }
.copy-btn {
  position: absolute; top: 12px; right: 12px; padding: 6px 14px; border-radius: 7px;
  background: rgba(255, 255, 255, 0.1); color: #fff; font-size: 12px; transition: background 0.2s;
}
.copy-btn:hover { background: rgba(255, 255, 255, 0.22); }
.code-pane { display: none; }
.code-pane.active { display: block; }

/* ---------- AI 集市 ---------- */
.filter-bar { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 44px; }
.filter-btn {
  padding: 10px 26px; border-radius: 999px; font-size: 15px; color: var(--text);
  background: #fff; border: 1px solid var(--border); transition: all 0.25s;
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.market-card {
  background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 28px 26px;
  transition: all 0.3s; display: flex; flex-direction: column; gap: 14px; position: relative;
}
.market-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.market-card .cat-badge {
  position: absolute; top: 20px; right: 20px; font-size: 12px; padding: 4px 12px; border-radius: 999px;
}
.cat-skill { background: #E1F5EE; color: #0F6E56; }
.cat-agent { background: #EEEDFE; color: #534AB7; }
.cat-oss { background: #FAEEDA; color: #854F0B; }
.market-card .mk-icon { width: 50px; height: 50px; border-radius: 13px; display: flex; align-items: center; justify-content: center; }
.market-card h3 { font-size: 18px; color: var(--primary-dark); }
.market-card p { font-size: 14px; color: var(--text-sub); flex: 1; }
.market-card .mk-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.market-card .mk-tags span { font-size: 12px; padding: 3px 11px; border-radius: 999px; background: var(--bg); color: var(--text-sub); border: 1px solid var(--border); }
.market-card .mk-cta { color: var(--primary); font-size: 14.5px; font-weight: 500; }
.market-empty { text-align: center; color: var(--text-sub); padding: 60px 0; }

/* ---------- AI 集市详情页 ---------- */
.detail-section { padding: 48px 0 72px; }
.detail-head { display: flex; gap: 22px; align-items: flex-start; margin-bottom: 40px; }
.detail-head .mk-icon { width: 76px; height: 76px; border-radius: 18px; flex-shrink: 0; }
.detail-head h1 { font-size: 32px; color: var(--primary-dark); margin: 8px 0 10px; }
.detail-head > div > p { font-size: 16px; color: var(--text-sub); margin-bottom: 12px; max-width: 720px; }
.detail-grid { display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: start; }
.detail-main { display: flex; flex-direction: column; gap: 32px; }
.detail-sec h2 { font-size: 22px; color: var(--primary-dark); margin-bottom: 14px; padding-left: 13px; border-left: 4px solid var(--primary); }
.detail-sec p { font-size: 15.5px; line-height: 1.85; color: #4a5160; }
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.feature-list li { position: relative; padding-left: 28px; font-size: 15.5px; line-height: 1.7; color: #4a5160; }
.feature-list li::before { content: ""; position: absolute; left: 4px; top: 9px; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); }
.usage-list { counter-reset: step; list-style: none; display: flex; flex-direction: column; gap: 16px; padding: 0; }
.usage-list li { position: relative; padding-left: 44px; font-size: 15.5px; line-height: 1.7; color: #4a5160; min-height: 28px; }
.usage-list li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 0; width: 28px; height: 28px; border-radius: 50%;
  background: var(--primary); color: #fff; font-size: 14px; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
}
.detail-side { position: sticky; top: 92px; }
.side-card { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 26px 24px; box-shadow: var(--shadow); }
.side-card h3 { font-size: 18px; color: var(--primary-dark); margin-bottom: 10px; }
.side-card p { font-size: 14px; color: var(--text-sub); line-height: 1.7; margin-bottom: 18px; }
.side-card .btn { width: 100%; text-align: center; }
.detail-empty { text-align: center; padding: 80px 0; }
.detail-empty h1 { font-size: 28px; color: var(--primary-dark); margin-bottom: 12px; }
.detail-empty p { color: var(--text-sub); margin-bottom: 24px; }

/* ---------- 关于我们 ---------- */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 56px; align-items: center; }
.about-text h2 { font-size: 30px; color: var(--primary-dark); margin-bottom: 20px; }
.about-text p { color: var(--text-sub); margin-bottom: 16px; font-size: 15.5px; }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 32px; }
.stat-item { background: var(--bg); border-radius: 12px; padding: 22px 16px; text-align: center; }
.stat-item b { display: block; font-size: 30px; color: var(--primary); font-weight: 800; }
.stat-item span { font-size: 13px; color: var(--text-sub); }
.about-visual { background: linear-gradient(135deg, var(--primary-dark), #1E4BAF); border-radius: 20px; padding: 44px 36px; color: #fff; }
.about-visual h3 { font-size: 21px; margin-bottom: 24px; }
.value-item { display: flex; gap: 14px; margin-bottom: 22px; }
.value-item .vi-dot { width: 34px; height: 34px; border-radius: 9px; background: rgba(255, 255, 255, 0.14); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.value-item b { display: block; font-size: 15.5px; margin-bottom: 3px; }
.value-item span { font-size: 13.5px; color: rgba(255, 255, 255, 0.7); }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.contact-card { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 34px 30px; }
.contact-card h3 { font-size: 19px; color: var(--primary-dark); margin-bottom: 24px; }
.contact-line { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 22px; }
.contact-line .cl-icon { width: 42px; height: 42px; border-radius: 11px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-line b { display: block; font-size: 15px; color: var(--primary-dark); }
.contact-line span { font-size: 14px; color: var(--text-sub); }
.qr-box { display: flex; gap: 24px; flex-wrap: wrap; }
.qr-item { text-align: center; }
.qr-placeholder {
  width: 140px; height: 140px; border-radius: 12px; border: 1.5px dashed var(--border);
  background: var(--bg); display: flex; align-items: center; justify-content: center;
  color: var(--text-sub); font-size: 13px; margin-bottom: 10px;
}
.qr-item span { font-size: 13px; color: var(--text-sub); }

/* ---------- 滚动渐显 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }

/* ---------- 工具类 ---------- */
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }
.mt-56 { margin-top: 56px; }
.notice-bar { background: #FFF7ED; border: 1px solid #FFE1C2; color: #9A5B1B; border-radius: 10px; padding: 12px 18px; font-size: 13.5px; }