/* ============================================================
   圣驭医学质量管理服务平台 — 官网正式样式
   设计语言：品牌蓝 #2563eb、企业级卡片风格
   ============================================================ */

/* ---------- Design Tokens ---------- */
:root {
  --brand-700: #1d4ed8;
  --brand-600: #2563eb;
  --brand-500: #3b82f6;
  --brand-100: #dbeafe;
  --brand-50:  #eff6ff;

  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50:  #f9fafb;
  --white:    #ffffff;

  --success: #059669;
  --danger:  #dc2626;

  --shadow-xs: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --content-max: 1200px;
  --nav-height: 64px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Microsoft YaHei UI", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { color-scheme: light; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
ul, ol { list-style: none; }

.container { max-width: var(--content-max); margin: 0 auto; padding: 0 24px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 24px;
  border-radius: var(--radius-md); border: 1px solid transparent;
  font-size: 15px; font-weight: 600; cursor: pointer;
  transition: background .18s ease, border-color .18s ease, box-shadow .18s ease, transform .12s ease;
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--brand-600); outline-offset: 2px; }
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--brand-600); color: var(--white); box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--brand-700); }

.btn--ghost { background: var(--white); color: var(--gray-700); border-color: var(--gray-300); }
.btn--ghost:hover { border-color: var(--brand-500); color: var(--brand-600); }

.btn--ghost-light { background: transparent; color: var(--white); border-color: rgba(255,255,255,.45); }
.btn--ghost-light:hover { background: rgba(255,255,255,.12); border-color: var(--white); }

.btn--lg { height: 50px; padding: 0 30px; font-size: 16px; border-radius: var(--radius-lg); }
.btn--sm { height: 36px; padding: 0 16px; font-size: 14px; }
.btn--block { width: 100%; }

.btn .btn__arrow { transition: transform .18s ease; }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ============================================================
   NAV — 官网顶部导航
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 200;
  height: var(--nav-height);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-200);
}
.nav__inner {
  max-width: var(--content-max); height: 100%; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; gap: 32px;
}
.nav__brand { display: flex; align-items: center; gap: 10px; }
.nav__logo { width: 34px; height: 34px; flex: none; border-radius: 8px; object-fit: contain; }
.nav__brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.nav__brand-name { font-size: 15px; font-weight: 700; color: var(--gray-900); }
.nav__brand-sub { font-size: 10px; letter-spacing: .12em; color: var(--gray-400); }

.nav__links { display: flex; align-items: center; gap: 4px; margin-right: auto; }
.nav__item { position: relative; }
.nav__link {
  display: flex; align-items: center; gap: 4px;
  padding: 8px 14px; border-radius: var(--radius-md);
  font-size: 14px; font-weight: 500; color: var(--gray-600);
  transition: color .15s ease, background .15s ease;
}
.nav__link:hover { color: var(--brand-600); background: var(--brand-50); }
.nav__link--active { color: var(--brand-600); }
.nav__caret { width: 10px; height: 10px; }

.nav__dropdown {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 260px;
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  padding: 8px; opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
}
.nav__item:hover .nav__dropdown,
.nav__item:focus-within .nav__dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.nav__dropdown a { display: block; padding: 10px 12px; border-radius: var(--radius-md); }
.nav__dropdown a:hover { background: var(--brand-50); }
.nav__dropdown .dd-title { font-size: 14px; font-weight: 600; color: var(--gray-900); }
.nav__dropdown .dd-desc { font-size: 12px; color: var(--gray-500); margin-top: 2px; }

.nav__actions { display: flex; align-items: center; gap: 10px; }

/* 移动端汉堡菜单 */
.nav__burger {
  display: none; align-items: center; justify-content: center;
  width: 40px; height: 40px; margin-left: 8px;
  border: none; background: transparent; border-radius: var(--radius-md);
  color: var(--gray-700); cursor: pointer;
}
.nav__burger:focus-visible { outline: 2px solid var(--brand-600); outline-offset: 2px; }
.nav__burger svg { width: 22px; height: 22px; }
.nav__mobile {
  position: absolute; top: var(--nav-height); left: 0; right: 0; z-index: 190;
  background: var(--white); border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-lg); padding: 4px 16px 12px;
  display: flex; flex-direction: column;
  max-height: calc(100vh - var(--nav-height)); overflow-y: auto;
}
.nav__mobile-link {
  padding: 13px 8px; font-size: 15px; color: var(--gray-700);
  border-bottom: 1px solid var(--gray-100);
}
.nav__mobile-link:active { background: var(--brand-50); }
.nav__mobile-link--entry { color: var(--brand-600); font-weight: 600; border-bottom: none; }
.nav__mobile[hidden] { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(37,99,235,.14), transparent 60%),
    radial-gradient(700px 380px at -10% 110%, rgba(59,130,246,.10), transparent 55%),
    linear-gradient(180deg, #f7faff 0%, var(--gray-50) 100%);
  border-bottom: 1px solid var(--gray-200);
}
.hero__inner {
  max-width: var(--content-max); margin: 0 auto; padding: 72px 24px 80px;
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 56px; align-items: center;
}
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 14px; border-radius: 999px;
  background: var(--brand-50); border: 1px solid var(--brand-100);
  color: var(--brand-600); font-size: 13px; font-weight: 600;
  margin-bottom: 20px;
}
.hero__eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--brand-500); }
.hero__title {
  font-size: 44px; line-height: 1.22; font-weight: 700; color: var(--gray-900);
  letter-spacing: -0.02em; margin-bottom: 18px;
}
.hero__title em { font-style: normal; color: var(--brand-600); }
.hero__subtitle { font-size: 17px; color: var(--gray-600); max-width: 520px; margin-bottom: 32px; }
.hero__ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__note { margin-top: 16px; font-size: 13px; color: var(--gray-400); }

/* 产品界面示意（纯 CSS 绘制，后续可替换为真实系统截图） */
.hero__visual { position: relative; }
.mock {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl); box-shadow: var(--shadow-xl);
  overflow: hidden;
}
.mock__bar { display: flex; gap: 6px; padding: 12px 16px; border-bottom: 1px solid var(--gray-100); background: var(--gray-50); }
.mock__dot { width: 10px; height: 10px; border-radius: 50%; background: var(--gray-300); }
.mock__dot:nth-child(1) { background: #fca5a5; }
.mock__dot:nth-child(2) { background: #fcd34d; }
.mock__dot:nth-child(3) { background: #6ee7b7; }
.mock__body { display: grid; grid-template-columns: 150px 1fr; min-height: 320px; }
.mock__side { border-right: 1px solid var(--gray-100); padding: 16px 12px; display: flex; flex-direction: column; gap: 10px; background: #fbfcfe; }
.mock__side-item { height: 12px; border-radius: 4px; background: var(--gray-200); }
.mock__side-item--active { background: var(--brand-500); width: 80%; }
.mock__main { padding: 18px; display: flex; flex-direction: column; gap: 14px; }
.mock__kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.mock__kpi { border: 1px solid var(--gray-100); border-radius: var(--radius-md); padding: 12px; background: var(--white); }
.mock__kpi-label { height: 9px; width: 55%; border-radius: 3px; background: var(--gray-200); margin-bottom: 8px; }
.mock__kpi-value { font-size: 20px; font-weight: 700; color: var(--gray-900); font-variant-numeric: tabular-nums; }
.mock__kpi-value small { font-size: 11px; font-weight: 500; color: var(--success); margin-left: 4px; }
.mock__chart { flex: 1; border: 1px solid var(--gray-100); border-radius: var(--radius-md); padding: 14px; display: flex; align-items: flex-end; gap: 8px; }
.mock__bar-col { flex: 1; border-radius: 4px 4px 0 0; background: linear-gradient(180deg, var(--brand-500), var(--brand-100)); }
.mock__float {
  position: absolute; right: -18px; bottom: -22px;
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); padding: 12px 16px;
  display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--gray-700);
}
.mock__float .ok {
  width: 28px; height: 28px; border-radius: 50%; flex: none;
  background: #ecfdf5; color: var(--success);
  display: flex; align-items: center; justify-content: center;
}

/* ---------- Trust bar ---------- */
.trustbar { background: var(--white); border-bottom: 1px solid var(--gray-200); }
.trustbar__inner {
  max-width: var(--content-max); margin: 0 auto; padding: 28px 24px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.trust-item { text-align: center; }
.trust-item__value { font-size: 30px; font-weight: 700; color: var(--gray-900); font-variant-numeric: tabular-nums; }
.trust-item__value span { color: var(--brand-600); }
.trust-item__label { font-size: 13px; color: var(--gray-500); margin-top: 2px; }

/* ---------- Section 通用 ---------- */
.section { padding: 80px 0; }
.section--alt { background: var(--gray-50); border-top: 1px solid var(--gray-100); border-bottom: 1px solid var(--gray-100); }
.section__head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section__eyebrow { font-size: 13px; font-weight: 700; color: var(--brand-600); letter-spacing: .08em; text-transform: uppercase; }
.section__title { font-size: 32px; font-weight: 700; color: var(--gray-900); letter-spacing: -0.01em; margin: 8px 0 12px; }
.section__sub { font-size: 16px; color: var(--gray-500); }

/* ---------- 产品矩阵 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-xl);
  padding: 28px; display: flex; flex-direction: column; gap: 14px;
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.product-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); border-color: var(--brand-100); }
.product-card__icon {
  width: 48px; height: 48px; border-radius: var(--radius-lg);
  background: var(--brand-50); color: var(--brand-600);
  display: flex; align-items: center; justify-content: center;
}
.product-card__icon svg { width: 26px; height: 26px; }
.product-card__name { font-size: 18px; font-weight: 700; color: var(--gray-900); }
.product-card__desc { font-size: 14px; color: var(--gray-500); flex: 1; }
.product-card__tags { display: flex; flex-wrap: wrap; gap: 6px; }
.product-card__tag {
  font-size: 12px; color: var(--brand-600); background: var(--brand-50);
  border: 1px solid var(--brand-100); border-radius: 999px; padding: 2px 10px;
}
.product-card__links { display: flex; gap: 16px; align-items: center; padding-top: 6px; border-top: 1px solid var(--gray-100); margin-top: 4px; }
.product-card__link { font-size: 14px; font-weight: 600; color: var(--brand-600); display: inline-flex; align-items: center; gap: 4px; }
.product-card__link:hover { color: var(--brand-700); }
.product-card__link svg { width: 14px; height: 14px; }

/* ---------- 解决方案 Tabs ---------- */
.tabs { display: flex; justify-content: center; gap: 10px; margin-bottom: 36px; flex-wrap: wrap; }
.tabs__btn {
  padding: 10px 22px; border-radius: 999px; border: 1px solid var(--gray-300);
  background: var(--white); color: var(--gray-600); font-size: 14px; font-weight: 600; cursor: pointer;
  transition: all .15s ease;
}
.tabs__btn:hover { border-color: var(--brand-500); color: var(--brand-600); }
.tabs__btn--active { background: var(--brand-600); border-color: var(--brand-600); color: var(--white); }
.tabs__btn:focus-visible { outline: 2px solid var(--brand-600); outline-offset: 2px; }
.tab-panel { display: none; }
.tab-panel--active { display: grid; }
.tab-panel {
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px; align-items: start;
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-xl);
  padding: 36px; box-shadow: var(--shadow-sm);
}
.tab-panel__role { font-size: 22px; font-weight: 700; color: var(--gray-900); margin-bottom: 10px; }
.tab-panel__pains { font-size: 14px; color: var(--gray-500); margin-bottom: 18px; }
.tab-panel__pain-item { display: flex; gap: 8px; margin-bottom: 8px; }
.tab-panel__pain-item::before { content: "✕"; color: var(--danger); font-size: 12px; font-weight: 700; margin-top: 2px; }
.tab-panel__solutions { display: flex; flex-direction: column; gap: 14px; }
.solution-item {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--gray-50); border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg); padding: 16px 18px;
}
.solution-item__check {
  width: 26px; height: 26px; border-radius: 50%; flex: none; margin-top: 2px;
  background: #ecfdf5; color: var(--success);
  display: flex; align-items: center; justify-content: center;
}
.solution-item__title { font-size: 15px; font-weight: 600; color: var(--gray-900); }
.solution-item__desc { font-size: 13px; color: var(--gray-500); margin-top: 2px; }

/* ---------- 核心能力 ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cap-card {
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
  padding: 24px; transition: box-shadow .2s ease, border-color .2s ease;
}
.cap-card:hover { box-shadow: var(--shadow-md); border-color: var(--brand-100); }
.cap-card__icon {
  width: 40px; height: 40px; border-radius: var(--radius-md);
  background: var(--brand-50); color: var(--brand-600);
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
}
.cap-card__icon svg { width: 22px; height: 22px; }
.cap-card__title { font-size: 16px; font-weight: 700; color: var(--gray-900); margin-bottom: 6px; }
.cap-card__desc { font-size: 13.5px; color: var(--gray-500); }

/* ---------- 共创计划 ---------- */
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.quote-card {
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
  padding: 26px; display: flex; flex-direction: column; gap: 16px;
}
.quote-card__text { font-size: 14.5px; color: var(--gray-700); flex: 1; }
.quote-card__author { display: flex; align-items: center; gap: 12px; border-top: 1px solid var(--gray-100); padding-top: 14px; }
.quote-card__avatar {
  width: 38px; height: 38px; border-radius: 50%; flex: none;
  background: var(--brand-100); color: var(--brand-700);
  display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700;
}
.quote-card__name { font-size: 13.5px; font-weight: 600; color: var(--gray-900); }
.quote-card__org { font-size: 12px; color: var(--gray-400); }

.milestones { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-top: 36px; }
.milestone {
  display: flex; align-items: center; gap: 12px;
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
  padding: 14px 20px; font-size: 14px; color: var(--gray-600);
}
.milestone strong { color: var(--gray-900); }
.milestone__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); flex: none; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
  overflow: hidden;
}
.faq-item summary {
  list-style: none; cursor: pointer; padding: 18px 22px;
  font-size: 15.5px; font-weight: 600; color: var(--gray-900);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-size: 20px; font-weight: 400; color: var(--gray-400);
  transition: transform .18s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:focus-visible { outline: 2px solid var(--brand-600); outline-offset: -2px; }
.faq-item__body { padding: 0 22px 20px; font-size: 14.5px; color: var(--gray-600); }

/* ---------- CTA Band ---------- */
.cta-band { background: linear-gradient(120deg, var(--brand-700) 0%, var(--brand-600) 55%, var(--brand-500) 100%); color: var(--white); }
.cta-band__inner {
  max-width: var(--content-max); margin: 0 auto; padding: 64px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.cta-band__title { font-size: 28px; font-weight: 700; letter-spacing: -0.01em; }
.cta-band__sub { font-size: 15px; opacity: .85; margin-top: 6px; }
.cta-band__actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn--white { background: var(--white); color: var(--brand-700); }
.btn--white:hover { background: var(--brand-50); }

/* ---------- Footer ---------- */
.footer { background: var(--gray-900); color: var(--gray-400); }
.footer__inner { max-width: var(--content-max); margin: 0 auto; padding: 56px 24px 32px; }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 40px; padding-bottom: 36px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer__brand-name { color: var(--white); font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.footer__brand-desc { font-size: 13px; max-width: 300px; }
.footer__col-title { color: var(--white); font-size: 13px; font-weight: 600; margin-bottom: 14px; }
.footer__col a { display: block; font-size: 13px; padding: 4px 0; color: var(--gray-400); }
.footer__col a:hover { color: var(--white); }
.footer__contact-item { display: flex; gap: 8px; font-size: 13px; padding: 4px 0; color: var(--gray-400); }
.footer__contact-item svg { width: 15px; height: 15px; flex: none; margin-top: 3px; color: var(--gray-500); }
.footer__bottom {
  padding-top: 24px; display: flex; flex-direction: column; gap: 6px; align-items: center;
  font-size: 12px; color: var(--gray-500); text-align: center;
}
.footer__bottom a:hover { color: var(--white); }
.footer__records { display: flex; gap: 10px; align-items: center; }

/* ============================================================
   产品详情页
   ============================================================ */
.p-hero {
  background:
    radial-gradient(800px 360px at 80% -20%, rgba(37,99,235,.12), transparent 60%),
    linear-gradient(180deg, #f7faff 0%, var(--gray-50) 100%);
  border-bottom: 1px solid var(--gray-200);
}
.p-hero__inner { max-width: var(--content-max); margin: 0 auto; padding: 60px 24px 64px; }
.p-hero__crumb { font-size: 13px; color: var(--gray-400); margin-bottom: 18px; }
.p-hero__crumb a:hover { color: var(--brand-600); }
.p-hero__title { font-size: 36px; font-weight: 700; color: var(--gray-900); letter-spacing: -0.02em; }
.p-hero__subtitle { font-size: 17px; color: var(--gray-600); max-width: 680px; margin: 12px 0 26px; }
.p-hero__ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.p-hero__tags { display: flex; gap: 8px; margin-top: 22px; flex-wrap: wrap; }
.p-hero__tag { font-size: 12.5px; color: var(--brand-600); background: var(--brand-50); border: 1px solid var(--brand-100); border-radius: 999px; padding: 3px 12px; }

.audience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.audience-card {
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
  padding: 22px; text-align: center;
}
.audience-card__icon { font-size: 26px; margin-bottom: 8px; }
.audience-card__title { font-size: 15px; font-weight: 700; color: var(--gray-900); margin-bottom: 4px; }
.audience-card__desc { font-size: 13px; color: var(--gray-500); }

/* 功能模块卡片（无图排版，后续加图不改动结构） */
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.feature-card {
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-xl);
  padding: 28px; display: flex; flex-direction: column; gap: 10px;
}
.feature-card__step { font-size: 12px; font-weight: 700; color: var(--brand-600); letter-spacing: .1em; text-transform: uppercase; }
.feature-card__title { font-size: 20px; font-weight: 700; color: var(--gray-900); }
.feature-card__desc { font-size: 14.5px; color: var(--gray-500); }
.feature-card__points { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 18px; margin-top: 6px; }
.feature-card__point { display: flex; gap: 8px; font-size: 13.5px; color: var(--gray-700); }
.feature-card__point::before { content: "✓"; color: var(--success); font-weight: 700; }

/* 差异化优势 */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.adv-card { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg); padding: 24px; }
.adv-card__num { font-size: 13px; font-weight: 700; color: var(--brand-600); font-family: Consolas, monospace; }
.adv-card__title { font-size: 16px; font-weight: 700; color: var(--gray-900); margin: 8px 0 6px; }
.adv-card__desc { font-size: 13px; color: var(--gray-500); }

/* 关联产品 */
.cross-card {
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-xl);
  padding: 28px 32px; box-shadow: var(--shadow-sm);
}
.cross-card__title { font-size: 18px; font-weight: 700; color: var(--gray-900); }
.cross-card__desc { font-size: 14px; color: var(--gray-500); margin-top: 4px; max-width: 560px; }

/* ============================================================
   联系页（仅企业微信）
   ============================================================ */
.mini-nav { height: var(--nav-height); border-bottom: 1px solid var(--gray-200); background: var(--white); position: sticky; top: 0; z-index: 100; }
.mini-nav__inner { max-width: var(--content-max); margin: 0 auto; padding: 0 24px; height: 100%; display: flex; align-items: center; justify-content: space-between; }
.mini-nav__back { font-size: 14px; color: var(--gray-500); display: inline-flex; align-items: center; gap: 6px; }
.mini-nav__back:hover { color: var(--brand-600); }

.contact-wrap { max-width: 960px; margin: 0 auto; padding: 64px 24px 88px; text-align: center; }
.contact-wrap__title { font-size: 32px; font-weight: 700; color: var(--gray-900); }
.contact-wrap__sub { font-size: 15.5px; color: var(--gray-500); margin: 12px auto 40px; max-width: 520px; }
.contact-card {
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md); padding: 36px;
  display: flex; gap: 40px; align-items: center; justify-content: center; flex-wrap: wrap;
  text-align: left;
}
.contact-card__qr { width: 260px; height: auto; flex: none; border-radius: var(--radius-lg); border: 1px solid var(--gray-100); }
.contact-card__info { max-width: 380px; }
.contact-card__info-title { font-size: 20px; font-weight: 700; color: var(--gray-900); margin-bottom: 10px; }
.contact-card__info-text { font-size: 14.5px; color: var(--gray-600); margin-bottom: 18px; }
.contact-card__tip { font-size: 13px; color: var(--gray-400); margin-top: 14px; }
.contact-promises { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 32px; }
.contact-promise {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13.5px; color: var(--gray-600);
  background: var(--gray-50); border: 1px solid var(--gray-200);
  border-radius: 999px; padding: 8px 18px;
}
.contact-promise svg { width: 15px; height: 15px; color: var(--brand-600); }

/* ============================================================
   法务页（用户协议 / 隐私政策）
   ============================================================ */
.legal-wrap { max-width: 820px; margin: 0 auto; padding: 56px 24px 88px; }
.legal-wrap h1 { font-size: 28px; font-weight: 700; color: var(--gray-900); margin-bottom: 8px; }
.legal-wrap .legal-updated { font-size: 13px; color: var(--gray-400); margin-bottom: 32px; }
.legal-wrap h2 { font-size: 18px; font-weight: 700; color: var(--gray-900); margin: 28px 0 10px; }
.legal-wrap p, .legal-wrap li { font-size: 14.5px; color: var(--gray-600); margin-bottom: 8px; }
.legal-wrap ul { padding-left: 20px; list-style: disc; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; gap: 40px; padding: 56px 24px 64px; }
  .hero__title { font-size: 36px; }
  .product-grid, .cap-grid, .quote-grid, .audience-grid { grid-template-columns: repeat(2, 1fr); }
  .adv-grid, .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .tab-panel--active, .tab-panel { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .trustbar__inner { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .nav__links { display: none; }
  .nav__burger { display: inline-flex; }
  .nav__actions { margin-left: auto; }
  .nav__actions .btn--ghost { display: none; }
  .nav__inner { gap: 12px; }
  .nav__brand-sub { display: none; }
}

@media (max-width: 720px) {
  .hero__title { font-size: 30px; }
  .section { padding: 56px 0; }
  .section__title { font-size: 26px; }
  .product-grid, .cap-grid, .quote-grid, .audience-grid, .adv-grid, .feature-grid { grid-template-columns: 1fr; }
  .feature-card__points { grid-template-columns: 1fr; }
  .cta-band__inner { flex-direction: column; text-align: center; }
  .footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .mock__float { display: none; }
  .p-hero__title { font-size: 28px; }
  .contact-card { padding: 24px; }
}

@media (max-width: 480px) {
  .nav__inner { padding: 0 12px; }
  .nav__brand-name { font-size: 13px; }
  .hero__inner { padding: 44px 16px 56px; }
  .hero__eyebrow { font-size: 12px; }
  .hero__title { font-size: 28px; }
  .hero__ctas .btn, .p-hero__ctas .btn { flex: 1 1 100%; }
  .mock__side { display: none; }
  .mock__body { grid-template-columns: 1fr; min-height: 240px; }
  .mock__kpi { padding: 10px; }
  .mock__kpi-value { font-size: 16px; }
  .mock__kpi-value small { display: block; margin: 2px 0 0; }
  .trust-item__value { font-size: 24px; }
  .tabs__btn { padding: 8px 16px; font-size: 13px; }
  .contact-card__qr { width: min(260px, 72vw); }
  .milestones { flex-direction: column; align-items: stretch; }
}