/* ==========================================================================
   赢在重要时刻 公司官网样式（浅色主题）
   结构：变量 → 基础 → 通用组件 → 头部 → Hero → 区块 → 卡片 → 表单 → 页脚 → 响应式
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root {
  /* 背景层次：深墨蓝 → 卡片 */
  --bg: #070b18;
  --bg-2: #0a1024;
  --bg-3: #16203d;
  --surface: #111a34;
  --surface-2: #16203d;
  --line: #243055;
  --line-soft: rgba(140, 165, 220, 0.14);

  /* 文字 */
  --text: #eaf0ff;
  --text-2: #a5b2d4;
  --text-3: #8d9bbb;

  /* 品牌色 */
  --brand: #3b82f6;
  --brand-2: #22d3ee;
  --accent: #a78bfa;

  --grad: linear-gradient(115deg, #6ee7ff 0%, #60a5fa 45%, #a78bfa 100%);
  --grad-btn: linear-gradient(135deg, #3b82f6, #6d5cf6);

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;

  --shadow-sm: 0 2px 10px rgba(3, 8, 24, 0.4);
  --shadow: 0 18px 45px -18px rgba(4, 10, 30, 0.85);
  --ring: 0 0 0 3px rgba(96, 165, 250, 0.35);

  --container: 1160px;
  --header-h: 68px;

  --font: "Inter", "Segoe UI", -apple-system, BlinkMacSystemFont, "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.18; letter-spacing: -0.02em; font-weight: 700; color: var(--text); }
p { margin: 0 0 1em; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }

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

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 800px; }

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--brand); color: #fff; padding: 10px 16px; border-radius: 0 0 10px 10px;
  transition: top .2s ease;
}
.skip-link:focus { top: 0; }

.grad {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}

/* ---------- 按钮 ---------- */
.btn {
  --btn-py: 11px; --btn-px: 20px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: var(--btn-py) var(--btn-px);
  border: 1px solid transparent; border-radius: 999px;
  font-weight: 600; font-size: .95rem; white-space: nowrap;
  cursor: pointer; transition: transform .16s ease, box-shadow .2s ease, background-color .2s ease, border-color .2s ease, opacity .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-lg { --btn-py: 15px; --btn-px: 30px; font-size: 1.02rem; }
.btn-block { display: flex; width: 100%; }

.btn-primary {
  background: var(--grad-btn); color: #fff;
  box-shadow: 0 12px 24px -14px rgba(37, 99, 235, 0.75);
}
.btn-primary:hover { box-shadow: 0 16px 28px -14px rgba(37, 99, 235, 0.85); }

.btn-outline {
  background: var(--surface); color: var(--text);
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}
.btn-outline:hover { background: var(--bg-3); border-color: #3b4a78; }

.btn-ghost { background: transparent; color: var(--text-2); }
.btn-ghost:hover { color: var(--text); background: var(--bg-3); }

/* ---------- 头部 ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: var(--header-h);
  display: flex; align-items: center;
  border-bottom: 1px solid transparent;
  transition: background-color .25s ease, border-color .25s ease, box-shadow .25s;
}
.site-header.is-scrolled {
  background: rgba(8, 12, 26, 0.82);
  backdrop-filter: blur(14px) saturate(150%);
  border-bottom-color: var(--line);
  box-shadow: 0 6px 20px -18px rgba(20, 40, 90, 0.5);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; color: var(--text); }
.logo-mark {
  display: grid; place-items: center;
  width: 34px; height: 34px; border-radius: 11px;
  background: linear-gradient(135deg, #17233f, #1c2140);
  border: 1px solid #2a3558;
}

.nav { display: flex; align-items: center; gap: 30px; }
.nav-list { display: flex; gap: 26px; font-size: .95rem; color: var(--text-2); }
.nav-list a { position: relative; padding: 4px 0; transition: color .18s; }
.nav-list a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -2px; height: 2px;
  background: var(--grad); border-radius: 2px; transition: right .22s ease;
}
.nav-list a:hover, .nav-list a.is-active { color: var(--text); }
.nav-list a:hover::after, .nav-list a.is-active::after { right: 0; }
.nav-actions { display: flex; align-items: center; gap: 8px; }

.nav-toggle {
  display: none; width: 42px; height: 42px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  cursor: pointer; padding: 11px;
}
.nav-toggle-bar {
  display: block; height: 2px; background: var(--text); border-radius: 2px;
  transition: transform .22s ease, opacity .2s ease;
}
.nav-toggle-bar + .nav-toggle-bar { margin-top: 5px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: calc(var(--header-h) + 56px) 0 40px; overflow: hidden; }
.hero-glow {
  position: absolute; inset: -220px 0 auto 0; height: 780px; pointer-events: none;
  background:
    radial-gradient(560px 300px at 22% 32%, rgba(37, 99, 235, 0.10), transparent 70%),
    radial-gradient(520px 300px at 78% 18%, rgba(124, 58, 237, 0.10), transparent 70%),
    radial-gradient(600px 280px at 55% 0%, rgba(8, 145, 178, 0.07), transparent 70%);
  filter: blur(6px);
}
/* 网格纹理只铺在文字/按钮区域，避免覆盖在 Hero 照片上 */
.hero::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 300px; pointer-events: none;
  background-image: linear-gradient(rgba(20, 40, 90, .05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(20, 40, 90, .05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(900px 260px at 50% 0%, #000 10%, transparent 78%);
  -webkit-mask-image: radial-gradient(900px 260px at 50% 0%, #000 10%, transparent 78%);
}
.hero-inner { position: relative; z-index: 1; text-align: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  margin: 0 auto 20px; padding: 7px 15px;
  font-size: .84rem; color: var(--text-2);
  background: var(--bg-2);
  border: 1px solid var(--line); border-radius: 999px;
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-2); box-shadow: 0 0 0 4px rgba(8, 145, 178, 0.16); animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(8, 145, 178, 0.04); } }

.hero h1 { font-size: clamp(2.3rem, 6.2vw, 4.1rem); margin-bottom: .35em; }
.lead { max-width: 660px; margin: 0 auto 30px; color: var(--text-2); font-size: clamp(1rem, 2.1vw, 1.15rem); }

.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 24px; }

.hero-points { display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: center; color: var(--text-2); font-size: .9rem; }
.hero-points li { display: flex; align-items: center; gap: 8px; }
.hero-points li::before {
  content: ""; width: 15px; height: 15px; flex: none; border-radius: 50%;
  background: #12291f;
  border: 1px solid rgba(16, 185, 129, 0.45);
  box-shadow: inset 0 0 0 3px rgba(7, 11, 24, 0.9);
}

/* Hero 横幅图 */
.hero-banner {
  display: block; width: 100%; max-width: 940px;
  margin: 0 auto 32px; height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

/* 智能体协作网络示意图外框 */
.app-preview {
  position: relative; margin: 56px auto 0; max-width: 940px;
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.app-chrome {
  display: flex; align-items: center; gap: 7px;
  padding: 12px 16px; border-bottom: 1px solid var(--line);
  background: var(--bg-2);
}
.app-dot { width: 10px; height: 10px; border-radius: 50%; background: #33406b; }
.app-dot:nth-child(1) { background: #f87171; opacity: .75; }
.app-dot:nth-child(2) { background: #fbbf24; opacity: .75; }
.app-dot:nth-child(3) { background: #34d399; opacity: .75; }
.app-url { margin-left: 12px; font-size: .78rem; color: var(--text-3); letter-spacing: .01em; }
.app-svg { width: 100%; height: auto; background: #0c1226; }

.trusted-label { margin: 56px 0 18px; color: var(--text-3); font-size: .86rem; letter-spacing: .04em; text-transform: uppercase; }
.logo-wall { display: flex; flex-wrap: wrap; gap: 16px 42px; justify-content: center; align-items: center; }
.logo-wall span {
  font-size: 1.12rem; font-weight: 700; color: #6d7ca3; letter-spacing: -0.01em;
  transition: color .2s, opacity .2s; opacity: .9;
}
.logo-wall span em { font-style: normal; font-weight: 400; opacity: .7; }
.logo-wall span:hover { color: var(--text-2); opacity: 1; }

/* ---------- 区块通用 ---------- */
.section { padding: 96px 0; position: relative; }
.section-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.section-head h2 { font-size: clamp(1.75rem, 3.6vw, 2.5rem); }
.section-head .eyebrow { margin-bottom: 16px; }
.section-sub { color: var(--text-2); margin: 0; }

/* ---------- 数据条 ---------- */
.stats { padding: 8px 0 0; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
}
.stats-grid li { background: var(--surface); padding: 30px 22px; text-align: center; }
.stats-grid strong {
  display: block; font-size: clamp(1.6rem, 3.4vw, 2.3rem); font-weight: 700;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  font-variant-numeric: tabular-nums;
}
.stats-grid span { color: var(--text-3); font-size: .88rem; }

/* ---------- 功能卡片 ---------- */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }

.card {
  position: relative; padding: 28px 26px;
  background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: radial-gradient(340px 160px at 12% 0%, rgba(37, 99, 235, 0.08), transparent 70%);
  opacity: 0; transition: opacity .25s;
}
.card:hover { transform: translateY(-5px); border-color: #3d4d7a; box-shadow: var(--shadow); }
.card:hover::before { opacity: 1; }
.card h3 { font-size: 1.14rem; margin-bottom: .45em; }
.card p { color: var(--text-2); font-size: .95rem; margin: 0; }

.card-icon {
  display: grid; place-items: center; width: 46px; height: 46px; margin-bottom: 18px;
  border-radius: 13px; color: var(--brand);
  background: #16203d; border: 1px solid #243055;
}
.card-icon svg { width: 22px; height: 22px; }

/* ---------- 工作流 / 标签页 ---------- */
.workflow { background: linear-gradient(180deg, transparent, rgba(37, 99, 235, 0.045) 35%, transparent); }

.tabs {
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--surface); box-shadow: var(--shadow-sm); overflow: hidden;
}
.tab-btns { display: flex; flex-wrap: wrap; gap: 6px; padding: 14px; border-bottom: 1px solid var(--line); background: var(--bg-2); }
.tab-btn {
  padding: 10px 18px; border-radius: 999px; cursor: pointer;
  background: transparent; border: 1px solid transparent; color: var(--text-2);
  font-size: .93rem; font-weight: 600; transition: all .18s;
}
.tab-btn:hover { color: var(--text); background: var(--surface); box-shadow: var(--shadow-sm); }
.tab-btn.is-active { color: #fff; background: var(--grad-btn); box-shadow: 0 10px 20px -14px rgba(37, 99, 235, 0.9); }

.tab-panel { display: none; padding: 36px; gap: 36px; grid-template-columns: 1.15fr 1fr; align-items: center; }
.tab-panel.is-active { display: grid; animation: fade .35s ease both; }
@keyframes fade { from { opacity: 0; transform: translateY(8px); } }
.tab-panel h3 { font-size: 1.35rem; }
.tab-panel p { color: var(--text-2); }

.check-list { display: grid; gap: 11px; }
.check-list li { position: relative; padding-left: 28px; color: var(--text-2); font-size: .95rem; }
.check-list li::before {
  content: ""; position: absolute; left: 0; top: .38em; width: 17px; height: 17px; border-radius: 50%;
  background: #17233f url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232563eb' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E") center / 11px no-repeat;
}
.check-list li strong { color: var(--text); }

.panel-visual { display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap; }
.flow-node {
  padding: 14px 20px; border-radius: 14px; font-size: .92rem; font-weight: 600; color: var(--text-2);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.flow-node.is-key {
  color: #fff; border-color: transparent; background: var(--grad-btn);
  box-shadow: 0 14px 26px -16px rgba(37, 99, 235, 0.9);
}
.flow-line { width: 34px; height: 2px; background: linear-gradient(90deg, rgba(96, 165, 250, 0.35), rgba(37, 99, 235, 0.6)); border-radius: 2px; }

.panel-visual.bars { gap: 14px; align-items: flex-end; height: 190px; }
.panel-visual.bars span {
  width: 34px; height: var(--h); border-radius: 9px 9px 4px 4px;
  background: linear-gradient(180deg, #3b82f6, rgba(37, 99, 235, 0.15));
  animation: grow .7s cubic-bezier(.22,1,.36,1) both;
}
@keyframes grow { from { height: 8%; opacity: .3; } }

/* ---------- 价格 ---------- */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 22px; align-items: start; }

.price-card {
  position: relative; padding: 32px 28px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s;
}
.price-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.price-card h3 { font-size: 1.12rem; color: var(--text-2); font-weight: 600; letter-spacing: .01em; }
.price { display: flex; align-items: baseline; gap: 6px; margin: 4px 0 6px; font-size: 2.6rem; font-weight: 700; letter-spacing: -0.03em; }
.price .cur { font-size: 1.3rem; font-weight: 600; color: var(--text-2); }
.price small { font-size: .85rem; font-weight: 500; color: var(--text-3); letter-spacing: 0; }
.price-desc { color: var(--text-3); font-size: .9rem; margin-bottom: 20px; }
.price-card .check-list { margin-bottom: 26px; }

.price-card.is-featured {
  border-color: #40538a;
  background: linear-gradient(180deg, #16203d, #111a34);
  box-shadow: 0 26px 50px -30px rgba(37, 99, 235, 0.55);
}
.badge {
  position: absolute; top: -13px; left: 28px;
  padding: 5px 14px; font-size: .76rem; font-weight: 700; letter-spacing: .03em;
  color: #fff; background: var(--grad-btn); border-radius: 999px;
  box-shadow: 0 8px 18px -10px rgba(37, 99, 235, 0.9);
}

/* ---------- 评价 ---------- */
.quote-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.quote {
  margin: 0; padding: 26px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .22s, border-color .22s, box-shadow .22s;
}
.quote:hover { transform: translateY(-4px); border-color: #3d4d7a; box-shadow: var(--shadow); }
.quote blockquote { margin: 0 0 20px; font-size: 1rem; color: var(--text); }
.quote figcaption { display: flex; align-items: center; gap: 12px; }
.quote strong { display: block; font-size: .93rem; }
.quote small { color: var(--text-3); font-size: .82rem; }
.avatar {
  display: grid; place-items: center; width: 40px; height: 40px; flex: none; border-radius: 50%;
  font-weight: 700; font-size: .95rem; color: #fff;
  background: linear-gradient(135deg, #3b82f6, #a78bfa);
}

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 12px; }
.faq-item {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; transition: border-color .2s, box-shadow .2s;
}
.faq-item:hover { border-color: #3d4d7a; }
.faq-item h3 { margin: 0; font-size: 1rem; font-weight: 600; }
.faq-q {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  width: 100%; padding: 20px 22px; text-align: left;
  background: transparent; border: 0; cursor: pointer;
}
.faq-q:hover { color: var(--brand); }
.faq-icon { position: relative; width: 18px; height: 18px; flex: none; }
.faq-icon::before, .faq-icon::after {
  content: ""; position: absolute; inset: 50% 0 auto 0; height: 2px; border-radius: 2px;
  background: var(--text-3); transition: transform .25s ease, background-color .2s;
  transform: translateY(-50%);
}
.faq-icon::after { transform: translateY(-50%) rotate(90deg); }
.faq-item.is-open .faq-icon::after { transform: translateY(-50%) rotate(0deg); }
.faq-item.is-open .faq-icon::before { background: var(--brand); }
.faq-a { padding: 0 22px 22px; }
.faq-a p { margin: 0; color: var(--text-2); font-size: .95rem; }

/* ---------- CTA / 表单 ---------- */
.cta-inner {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center;
  padding: 52px; border-radius: var(--radius-lg);
  background:
    radial-gradient(600px 300px at 8% 0%, rgba(59, 130, 246, 0.22), transparent 70%),
    radial-gradient(500px 260px at 95% 100%, rgba(167, 139, 250, 0.20), transparent 70%),
    linear-gradient(180deg, rgba(23, 33, 62, 0.9), rgba(11, 17, 38, 0.92));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.cta-inner h2 { font-size: clamp(1.7rem, 3.4vw, 2.35rem); }
.cta-inner > div > p { color: var(--text-2); max-width: 46ch; }
.cta-inner .hero-points { justify-content: flex-start; }

.signup {
  padding: 26px; border-radius: var(--radius);
  background: var(--bg-2); border: 1px solid var(--line);
}
.field { margin-bottom: 16px; }
.field label { display: block; margin-bottom: 7px; font-size: .87rem; font-weight: 600; color: var(--text-2); }
.field .opt { font-weight: 400; color: var(--text-3); }
.field input {
  width: 100%; padding: 13px 15px; font: inherit; font-size: .95rem; color: var(--text);
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  transition: border-color .18s, box-shadow .18s, background-color .18s;
}
.field input::placeholder { color: #5b688b; }
.field input:focus { outline: none; border-color: var(--brand); box-shadow: var(--ring); background: var(--surface); }
.field input.is-invalid { border-color: #f87171; box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.14); }

.form-msg { margin: 14px 0 0; font-size: .9rem; min-height: 1.2em; }
.form-msg.is-error { color: #fca5a5; }
.form-msg.is-ok { color: #6ee7b7; }
.form-note { margin: 10px 0 0; font-size: .78rem; color: var(--text-3); }

/* ---------- 页脚 ---------- */
.site-footer { margin-top: 40px; border-top: 1px solid var(--line); background: var(--bg-2); }
.footer-inner { display: grid; grid-template-columns: 1.4fr 2fr; gap: 44px; padding: 56px 24px 40px; }
.footer-brand p { margin-top: 16px; color: var(--text-3); font-size: .9rem; max-width: 34ch; }
.footer-brand .logo { margin-bottom: 4px; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-cols h3 { font-size: .84rem; letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); font-weight: 600; }
.footer-cols ul { display: grid; gap: 10px; }
.footer-cols a { color: var(--text-2); font-size: .92rem; transition: color .18s; }
.footer-cols a:hover { color: var(--brand); }

.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center;
  padding: 20px 24px 30px; border-top: 1px solid var(--line);
  color: var(--text-3); font-size: .85rem;
}
.footer-bottom p { margin: 0; }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a:hover { color: var(--text); }

/* ---------- 滚动进场 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s cubic-bezier(.22,1,.36,1); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ==========================================================================
   多页面组件：导航扩展 / 子页面头部 / 公司介绍 / 产品 / 媒体 / 活动 / 微信
   ========================================================================== */

/* ---------- 导航扩展 ---------- */
.nav-list a { white-space: nowrap; }
.nav-actions { flex: none; }

.nav-wechat {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 14px; border-radius: 999px;
  font-size: .9rem; font-weight: 600; color: #8ff0c4;
  background: rgba(37, 211, 102, 0.1); border: 1px solid rgba(37, 211, 102, 0.32);
  transition: background-color .2s, border-color .2s, transform .16s;
}
.nav-wechat:hover { background: rgba(37, 211, 102, 0.18); border-color: rgba(37, 211, 102, 0.6); transform: translateY(-1px); }

/* 公众号二维码：微信内点按跳主页，微信外点按就地显示二维码 */
.wechat-pop { position: relative; display: inline-flex; vertical-align: middle; }
.wechat-pop-panel {
  position: absolute; z-index: 60;
  top: calc(100% + 12px); left: 50%; transform: translate(-50%, -6px);
  width: 208px; max-width: 76vw; padding: 12px 12px 14px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  opacity: 0; visibility: hidden;
  transition: opacity .2s ease, transform .22s ease, visibility .2s;
  text-align: center;
}
/* 悬停 / 键盘聚焦 / 点击展开 */
.wechat-pop:hover .wechat-pop-panel,
.wechat-pop:focus-within .wechat-pop-panel,
.wechat-pop.is-open .wechat-pop-panel { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.wechat-pop-panel img { width: 176px; max-width: 100%; height: auto; margin: 0 auto 10px; border-radius: 10px; background: #fff; }
.wechat-pop-panel span { display: block; font-size: .8rem; color: var(--text-2); line-height: 1.5; }
.wechat-pop-close {
  display: none; width: 100%; margin-top: 8px; padding: 7px 0;
  background: transparent; border: 0; border-top: 1px solid var(--line);
  color: var(--text-2); font-size: .8rem; cursor: pointer;
}
.wechat-pop-close:hover { color: var(--text); }

/* 页脚浮层向上弹出，避免超出页面底部 */
.footer-brand .wechat-pop-panel { top: auto; bottom: calc(100% + 12px); transform: translate(-50%, 6px); }
.footer-brand .wechat-pop:hover .wechat-pop-panel,
.footer-brand .wechat-pop:focus-within .wechat-pop-panel,
.footer-brand .wechat-pop.is-open .wechat-pop-panel { transform: translate(-50%, 0); }

/* 常驻展示的二维码块 */
.wechat-qr {
  margin: 0; flex: none; text-align: center;
  padding: 12px; border-radius: var(--radius);
  background: #fff; box-shadow: var(--shadow-sm);
}
.wechat-qr img { width: 140px; height: 140px; margin: 0 auto 8px; border-radius: 8px; }
.wechat-qr figcaption { color: #4d5f7f; font-size: .8rem; line-height: 1.5; }

.btn-wechat {
  background: linear-gradient(135deg, #22c55e, #0ea472);
  color: #fff; box-shadow: 0 12px 24px -14px rgba(16, 185, 129, 0.95);
}
.btn-wechat:hover { box-shadow: 0 18px 28px -14px rgba(16, 185, 129, 1); }

/* ---------- 子页面头部 ---------- */
.page-hero { position: relative; padding: calc(var(--header-h) + 64px) 0 12px; overflow: hidden; }
.page-hero::before {
  content: ""; position: absolute; inset: -260px 0 auto 0; height: 620px; pointer-events: none;
  background:
    radial-gradient(520px 280px at 15% 40%, rgba(37, 99, 235, 0.10), transparent 70%),
    radial-gradient(480px 260px at 85% 20%, rgba(124, 58, 237, 0.09), transparent 70%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-title { font-size: clamp(2rem, 4.6vw, 3rem); margin-bottom: .3em; }

.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 22px; font-size: .85rem; color: var(--text-3); }
.breadcrumb a { color: var(--text-2); transition: color .18s; }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb li { display: flex; align-items: center; gap: 8px; }
.breadcrumb li::after { content: "/"; opacity: .45; }
.breadcrumb li:last-child::after { display: none; }
.breadcrumb [aria-current="page"] { color: var(--text); }

/* ---------- 内容块通用 ---------- */
.block { padding: 64px 0; }
.block:first-of-type { padding-top: 36px; }
.block + .block { border-top: 1px solid var(--line); }

.two-col { display: grid; grid-template-columns: 1.1fr 1fr; gap: 46px; align-items: center; }
.two-col.is-flipped .two-col-visual { order: -1; }
.two-col h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
.two-col p, .prose p { color: var(--text-2); }

.prose { max-width: 74ch; }
.prose > p:first-of-type { font-size: 1.06rem; color: var(--text); }

.visual-card {
  padding: 30px; border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.visual-card .stat-row { display: grid; gap: 18px; }
.visual-card .stat-row > div { padding-bottom: 16px; border-bottom: 1px dashed var(--line); }
.visual-card .stat-row > div:last-child { padding-bottom: 0; border-bottom: 0; }
.visual-card strong {
  display: block; font-size: 1.75rem; font-weight: 700;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.visual-card span { color: var(--text-3); font-size: .88rem; }

.fact-list { display: grid; gap: 14px; margin: 22px 0 0; }
.fact-list li { display: grid; grid-template-columns: 108px 1fr; gap: 14px; align-items: baseline; font-size: .95rem; }
.fact-list dt, .fact-list .k { color: var(--text-3); }
.fact-list .v { color: var(--text); }

/* ---------- 价值观卡片 ---------- */
.values-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; }
.value-card {
  padding: 24px; border-radius: var(--radius); border: 1px solid var(--line);
  background: var(--surface); box-shadow: var(--shadow-sm); transition: transform .2s, border-color .2s, box-shadow .2s;
}
.value-card:hover { transform: translateY(-4px); border-color: #3d4d7a; box-shadow: var(--shadow); }
.value-card h3 { font-size: 1.05rem; }
.value-card p { margin: 0; color: var(--text-2); font-size: .92rem; }

/* ---------- 时间线 ---------- */
.timeline { position: relative; display: grid; gap: 30px; padding-left: 30px; }
.timeline::before {
  content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 2px;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.7), rgba(124, 58, 237, 0.18));
  border-radius: 2px;
}
.timeline li { position: relative; }
.timeline li::before {
  content: ""; position: absolute; left: -30px; top: 8px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--brand); box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}
.timeline time { display: block; font-size: .82rem; letter-spacing: .06em; color: var(--brand); font-weight: 600; }
.timeline h3 { margin: 6px 0 4px; font-size: 1.06rem; }
.timeline p { margin: 0; color: var(--text-2); font-size: .93rem; }

/* ---------- 团队 ---------- */
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 18px; }
.person {
  padding: 24px; text-align: center; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.person .avatar { margin: 0 auto 14px; width: 58px; height: 58px; font-size: 1.2rem; }
.person h3 { margin-bottom: 2px; font-size: 1.02rem; }
.person p { margin: 0; color: var(--text-3); font-size: .85rem; }
.person p br + * { color: var(--text-2); }

/* ---------- 产品 ---------- */
.product-block {
  display: grid; grid-template-columns: 1fr 1.05fr; gap: 40px; align-items: center;
  padding: 34px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.product-block + .product-block { margin-top: 24px; }
.product-block.is-flipped .product-visual { order: -1; }
.product-block h2 { font-size: clamp(1.4rem, 2.8vw, 1.9rem); }
.product-tag {
  display: inline-block; margin-bottom: 12px; padding: 4px 12px; border-radius: 999px;
  font-size: .78rem; font-weight: 700; letter-spacing: .04em; color: var(--brand);
  background: #16203d; border: 1px solid #243055;
}
.product-block p { color: var(--text-2); }

.feature-mini { display: grid; gap: 12px; margin: 18px 0 24px; }
.feature-mini li { position: relative; padding-left: 24px; color: var(--text-2); font-size: .94rem; }
.feature-mini li::before {
  content: ""; position: absolute; left: 0; top: .5em; width: 8px; height: 8px; border-radius: 50%;
  background: var(--grad); box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08);
}
.feature-mini li strong { color: var(--text); }

.chip-note { display: inline-flex; align-items: center; gap: 8px; font-size: .85rem; color: var(--text-3); }

/* ---------- 筛选标签 ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; }
.chip {
  padding: 9px 16px; border-radius: 999px; cursor: pointer; font-size: .9rem; font-weight: 600;
  color: var(--text-2); background: var(--surface); border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: color .18s, background-color .18s, border-color .18s;
}
.chip:hover { color: var(--text); background: var(--bg-2); }
.chip.is-active { color: #fff; background: var(--grad-btn); border-color: transparent; }

.filter-item.is-hidden { display: none; }
.filter-empty { padding: 28px; text-align: center; color: var(--text-3); }

/* ---------- 场景卡片 ---------- */
.scene-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; }
.scene-card {
  padding: 26px; border-radius: var(--radius); border: 1px solid var(--line);
  background: var(--surface); box-shadow: var(--shadow-sm);
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.scene-card:hover { transform: translateY(-3px); border-color: #3d4d7a; box-shadow: var(--shadow); }
.scene-card h3 { font-size: 1.05rem; }
.scene-card p { margin: 0; color: var(--text-2); font-size: .93rem; }

/* ---------- 媒体报道卡片 ---------- */
.media-card {
  display: grid; grid-template-columns: 148px 1fr; gap: 24px; align-items: start;
  padding: 26px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.media-card:hover { transform: translateY(-3px); border-color: #3d4d7a; box-shadow: var(--shadow); }
.media-outlet { font-weight: 700; font-size: 1rem; color: var(--brand); }
.media-outlet small { display: block; margin-top: 4px; font-weight: 400; color: var(--text-3); font-size: .82rem; }
.media-card h3 { font-size: 1.1rem; margin-bottom: .4em; }
.media-card p { margin: 0 0 12px; color: var(--text-2); font-size: .93rem; }

.media-list { display: grid; gap: 16px; }
.media-lite {
  display: flex; flex-wrap: wrap; gap: 6px 18px; justify-content: space-between; align-items: baseline;
  padding: 18px 0; border-bottom: 1px solid var(--line); font-size: .95rem;
}
.media-lite:last-child { border-bottom: 0; }
.media-lite time { color: var(--text-3); font-size: .85rem; }
.media-lite a { color: var(--text); }
.media-lite a:hover { color: var(--brand); }

/* ---------- 媒体资料包 ---------- */
.asset-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.asset-card {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 22px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.asset-card strong { display: block; font-size: .98rem; }
.asset-card span { color: var(--text-3); font-size: .84rem; }

/* ---------- 活动列表 ---------- */
.event-list { display: grid; gap: 18px; }
.event-card {
  display: grid; grid-template-columns: 104px 1fr auto; gap: 24px; align-items: center;
  padding: 24px 26px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.event-card:hover { transform: translateY(-3px); border-color: #3d4d7a; box-shadow: var(--shadow); }
.event-date {
  text-align: center; padding: 12px 8px; border-radius: 14px;
  background: #16203d; border: 1px solid #243055;
}
.event-date strong { display: block; font-size: 1.5rem; line-height: 1.1; color: var(--brand); }
.event-date span { font-size: .8rem; color: var(--text-2); }
.event-card h3 { font-size: 1.1rem; margin-bottom: .35em; }
.event-meta { display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 0; color: var(--text-3); font-size: .85rem; }
.event-card p.desc { margin: 8px 0 0; color: var(--text-2); font-size: .93rem; }

.status {
  display: inline-block; padding: 4px 11px; border-radius: 999px;
  font-size: .76rem; font-weight: 700; letter-spacing: .02em;
}
.status.is-open { color: #6ee7b7; background: #12291f; border: 1px solid #2c6b4b; }
.status.is-soon { color: #fcd34d; background: #2a2110; border: 1px solid #6b5423; }
.status.is-done { color: var(--text-3); background: var(--bg-3); border: 1px solid var(--line); }

/* ---------- 表单扩展 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .field-full { grid-column: 1 / -1; }
.field select, .field textarea {
  width: 100%; padding: 13px 15px; font: inherit; font-size: .95rem; color: var(--text);
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  transition: border-color .18s, box-shadow .18s;
}
.field textarea { min-height: 118px; resize: vertical; }
.field select:focus, .field textarea:focus { outline: none; border-color: var(--brand); box-shadow: var(--ring); }
.field select.is-invalid, .field textarea.is-invalid { border-color: #f87171; box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.14); }
.field .hint { display: block; margin-top: 6px; font-size: .8rem; color: var(--text-3); }

.check-inline { display: flex; align-items: flex-start; gap: 10px; font-size: .88rem; color: var(--text-2); }
.check-inline input { width: 17px; height: 17px; margin-top: 3px; flex: none; accent-color: var(--brand); }

.form-panel {
  padding: 30px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow);
}
.form-panel h2 { font-size: clamp(1.4rem, 2.8vw, 1.85rem); }

/* ---------- 联系方式卡片 ---------- */
.channel-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.channel-card {
  padding: 24px; border-radius: var(--radius); border: 1px solid var(--line);
  background: var(--surface); box-shadow: var(--shadow-sm);
}
.channel-card h3 { font-size: .88rem; letter-spacing: .05em; text-transform: uppercase; color: var(--text-3); font-weight: 600; }
.channel-card p { margin: 0; font-size: .95rem; color: var(--text); }
.channel-card a { color: var(--brand); }
.channel-card a:hover { text-decoration: underline; }
.channel-card small { display: block; margin-top: 6px; color: var(--text-3); font-size: .8rem; }

/* ---------- 微信公众号区块 ---------- */
.wechat-block {
  display: flex; flex-wrap: wrap; gap: 26px; align-items: center; justify-content: space-between;
  margin-top: 56px; padding: 30px 34px; border-radius: var(--radius-lg);
  background:
    radial-gradient(420px 200px at 6% 10%, rgba(22, 163, 74, 0.10), transparent 70%),
    linear-gradient(180deg, #0e1a2e, #111a34);
  border: 1px solid #2a5c45;
}
.wechat-block h3 { margin-bottom: .3em; font-size: 1.25rem; }
.wechat-block p { margin: 0; color: var(--text-2); max-width: 46ch; }
.wechat-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.qr-figure { margin: 0; text-align: center; }
.qr-figure img {
  width: 168px; height: 168px; margin: 0 auto 12px; border-radius: 14px;
  background: var(--surface); padding: 8px; border: 1px solid var(--line);
}
.qr-figure figcaption { color: var(--text-3); font-size: .84rem; }
.qr-figure figcaption strong { display: block; color: var(--text); font-size: .95rem; margin-bottom: 4px; }

/* ---------- 数据表 ---------- */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table.data-table { width: 100%; border-collapse: collapse; min-width: 640px; font-size: .92rem; }
table.data-table caption { padding: 16px 20px 0; text-align: left; color: var(--text-3); font-size: .85rem; }
table.data-table th, table.data-table td { padding: 14px 20px; text-align: left; border-bottom: 1px solid var(--line); }
table.data-table thead th { color: var(--text); font-size: .85rem; letter-spacing: .04em; text-transform: uppercase; background: var(--bg-2); }
table.data-table tbody tr:hover { background: rgba(37, 99, 235, 0.04); }
table.data-table tbody td { color: var(--text-2); }
table.data-table tbody tr:last-child td { border-bottom: 0; }
table.data-table a { color: var(--brand); }

/* ---------- 首页动态区 ---------- */
.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.split-col {
  padding: 28px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.split-title { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; align-items: baseline; font-size: 1.12rem; }
.more-link { font-size: .86rem; font-weight: 600; color: var(--brand); }
.more-link:hover { text-decoration: underline; }

.mini-list { display: grid; gap: 4px; margin-top: 14px; }
.mini-list li { border-top: 1px solid var(--line); }
.mini-list li:first-child { border-top: 0; }
.mini-list a { display: block; padding: 16px 0; transition: transform .18s; }
.mini-list a:hover { transform: translateX(4px); }
.mini-meta { display: block; font-size: .8rem; color: var(--text-3); margin-bottom: 5px; letter-spacing: .02em; }
.mini-list strong { display: block; font-size: .98rem; font-weight: 600; color: var(--text); }
.mini-desc { display: block; margin-top: 4px; color: var(--text-2); font-size: .88rem; }

/* ---------- PDF 预览 ---------- */
object[type="application/pdf"] { display: block; width: 100%; border: 0; background: var(--surface); }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .cta-inner { grid-template-columns: 1fr; padding: 36px 28px; gap: 28px; }
  .tab-panel { grid-template-columns: 1fr; padding: 28px 22px; }
  .tab-panel.is-active { display: grid; }
  .panel-visual { justify-content: flex-start; }
  .two-col, .product-block, .split-grid { grid-template-columns: 1fr; gap: 28px; }
  .two-col.is-flipped .two-col-visual, .product-block.is-flipped .product-visual { order: 0; }
  .event-card { grid-template-columns: 84px 1fr; gap: 18px; }
  .event-card .status { grid-column: 2; justify-self: start; }
}

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; top: var(--header-h); left: 0; right: 0;
    display: none; flex-direction: column; align-items: stretch; gap: 18px;
    padding: 22px 24px 26px;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 22px 40px -26px rgba(20, 40, 90, 0.45);
  }
  .nav[hidden] { display: none !important; }
  .nav-list { flex-direction: column; gap: 4px; font-size: 1.02rem; }
  .nav-list a { display: block; padding: 11px 0; border-bottom: 1px solid var(--line); }
  .nav-list a::after { display: none; }
  .nav-actions { flex-direction: column; align-items: stretch; }
  .nav-actions .btn { --btn-py: 13px; }
  .nav-actions .nav-wechat { justify-content: center; padding: 12px 16px; }
  .nav-actions .btn-outline { display: none; }

  .section { padding: 72px 0; }
  .hero { padding-top: calc(var(--header-h) + 48px); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .logo-wall { gap: 12px 26px; }
  .logo-wall span { font-size: 1rem; }
  .trusted-label { margin-top: 40px; }
  .app-preview { margin-top: 38px; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); }

  .page-hero { padding-top: calc(var(--header-h) + 44px); }
  .block { padding: 48px 0; }
  .media-card { grid-template-columns: 1fr; gap: 14px; }
  .form-grid { grid-template-columns: 1fr; }
  .wechat-block { padding: 26px 22px; }
  .wechat-actions { width: 100%; }
  .wechat-actions .btn { flex: 1 1 auto; }
  .wechat-actions .wechat-pop { width: 100%; }
  /* 触屏没有悬停：浮层只由点按展开，并给出关闭按钮 */
  .wechat-pop:hover .wechat-pop-panel { opacity: 0; visibility: hidden; transform: translate(-50%, -6px); }
  .footer-brand .wechat-pop:hover .wechat-pop-panel { transform: translate(-50%, 6px); }
  .wechat-pop.is-open .wechat-pop-panel { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
  .wechat-pop-close { display: block; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .hero-cta .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr; }
  .tab-btns { flex-direction: column; }
  .tab-btn { text-align: left; }
  .flow-line { width: 20px; }
  .panel-visual.bars { height: 140px; }
  .panel-visual.bars span { width: 22px; }
  .footer-cols { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .fact-list li { grid-template-columns: 1fr; gap: 2px; }
  .event-card { grid-template-columns: 1fr; }
  .event-date { display: inline-flex; gap: 8px; align-items: baseline; justify-self: start; padding: 8px 14px; }
  .event-date strong { font-size: 1.15rem; }
  .asset-card { flex-direction: column; align-items: flex-start; }
  /* 小屏上浮层改为就地展开（不再绝对定位），避免遮挡与溢出 */
  .wechat-actions .wechat-pop-panel {
    position: static; width: 100%; max-width: none;
    margin-top: 10px; transform: none;
  }
  .wechat-actions .wechat-pop.is-open .wechat-pop-panel { transform: none; }
}

/* ---------- 无障碍 / 打印 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .site-header, .nav-toggle, .hero-glow, .hero::after { display: none !important; }
  body { background: var(--surface); color: #111; }
  .reveal { opacity: 1; transform: none; }
}