/* ============================================================
   KnowPay 知付 · 站点共用样式
   主题：深海蓝绿（参考 logseq.com 配色）+ 毛玻璃
   中英双语共用一套；中文站 zh/ 通过 ../styles.css 引用
   ============================================================ */

:root {
  --bg: #0B2E36;          /* 页面底色：深海蓝绿 */
  --bg-deep: #08242B;     /* 更深分区底色 */
  --card: #114453;        /* 卡片色 */
  --card-deep: #0F3B48;   /* 插画区/表头底色 */
  --line: #1D5B6B;        /* 边框：亮一号蓝绿 */
  --ink: #F2F8F9;         /* 主文字 */
  --ink-2: #C9DDE1;       /* 正文 */
  --ink-3: #8FB8BF;       /* 弱化文字（标题前半句也用它） */
  --brand: #4E9EC4;       /* 主按钮/链接：青蓝 */
  --brand-dark: #3E88A8;
  --accent: #E8760A;      /* 橙色点缀：只做小面积强调 */
  --glass: rgba(255, 255, 255, 0.07);
  --glass-line: rgba(255, 255, 255, 0.14);
  --radius: 14px;
  --maxw: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.2px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--ink); }
img { max-width: 100%; display: block; }
strong { color: var(--ink); font-weight: 600; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 780px; margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航（毛玻璃） ---------- */
header.site {
  position: sticky; top: 0; z-index: 30;
  background: rgba(11, 46, 54, 0.72);
  backdrop-filter: blur(12px) saturate(150%);
  -webkit-backdrop-filter: blur(12px) saturate(150%);
  border-bottom: 1px solid var(--glass-line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.logo { font-size: 19px; font-weight: 700; letter-spacing: -0.2px; color: var(--ink); }
.logo:hover { text-decoration: none; }
.logo em { font-style: normal; color: var(--brand); }
.logo span { font-size: 12.5px; color: var(--ink-3); font-weight: 400; margin-left: 10px; letter-spacing: 0.5px; }
.nav-right { display: flex; align-items: center; gap: 26px; }
.nav-links { display: flex; gap: 26px; }
.nav-links a { color: var(--ink-2); font-size: 15px; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
.nav-links a.on { color: var(--brand); font-weight: 600; }
.nav-tools { display: flex; align-items: center; gap: 14px; }
.lang {
  font-size: 13px; color: var(--ink-3);
  border: 1px solid var(--glass-line); border-radius: 999px;
  padding: 4px 12px; white-space: nowrap;
  background: var(--glass);
}
.lang:hover { border-color: var(--brand); color: var(--ink); text-decoration: none; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block; padding: 12px 26px; border-radius: 10px;
  font-size: 15px; font-weight: 600; line-height: 1.4;
  transition: background .15s ease, border-color .15s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); color: #fff; }
.btn-ghost {
  background: var(--glass); color: var(--ink);
  border: 1px solid var(--glass-line);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.btn-ghost:hover { border-color: var(--brand); color: var(--ink); }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-block { display: block; text-align: center; }

/* ---------- 首屏（满屏高 + 右侧实拍主视觉渐隐融合） ---------- */
.hero {
  padding: 48px 0;
  border-bottom: 1px solid var(--glass-line);
  position: relative; overflow: hidden;
  min-height: calc(100vh - 66px);
  display: flex; align-items: center;
}
.hero-visual {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: 62%; pointer-events: none;
  display: flex; align-items: center; justify-content: flex-end;
}
.hero-visual img {
  width: 100%; height: auto; max-height: 94%;
  object-fit: contain;
  mix-blend-mode: lighten;
  filter: brightness(1.18) saturate(1.05);
}
.hero-visual::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(to right, var(--bg) 5%, rgba(11,46,54,0.82) 30%, rgba(11,46,54,0) 62%),
    linear-gradient(to bottom, var(--bg) 0%, rgba(11,46,54,0) 26%),
    linear-gradient(to top, var(--bg) 0%, rgba(11,46,54,0) 28%);
}
.hero-visual::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: rgba(11, 46, 54, 0.10);
}
.hero .wrap { position: relative; z-index: 2; width: 100%; }
.hero-inner { max-width: 600px; }
.hero .eyebrow {
  display: inline-block; font-size: 13.5px; color: var(--ink);
  background: var(--glass); border: 1px solid var(--glass-line);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-radius: 999px;
  padding: 6px 16px; margin-bottom: 24px; letter-spacing: 1px;
}
.hero h1 { font-size: 44px; line-height: 1.32; letter-spacing: -0.5px; margin-bottom: 20px; }
.hero h1 .dim { color: var(--ink-3); font-weight: 400; }
.hero p.lead { font-size: 18px; color: var(--ink-2); margin-bottom: 32px; max-width: 640px; }
.hero .actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero .slogan { margin-top: 26px; font-size: 14px; color: var(--ink-3); letter-spacing: 2px; }

/* ---------- 通用区块 ---------- */
section { padding: 76px 0; }
section.soft { background: var(--bg-deep); }
.sec-head { margin-bottom: 44px; }
.sec-head h2 { font-size: 30px; letter-spacing: -0.4px; line-height: 1.4; color: var(--ink); }
.sec-head h2 .dim { color: var(--ink-3); font-weight: 400; }
.sec-head p { color: var(--ink-3); margin-top: 10px; font-size: 16px; }
.sec-head.center { text-align: center; }
.sec-head.center p { margin-left: auto; margin-right: auto; max-width: 600px; }

/* ---------- 产品卡片 ---------- */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.card {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--card); padding: 30px; display: flex; flex-direction: column;
  transition: border-color .15s ease, transform .15s ease;
}
.card:hover { border-color: var(--brand); }
.card.media { padding: 0; overflow: hidden; }
.card.media .card-img {
  width: 100%; height: 160px; object-fit: cover;
  background: var(--card-deep); border-bottom: 1px solid var(--line);
}
.card.media .card-body { padding: 28px 30px; display: flex; flex-direction: column; flex: 1; }
.tag {
  align-self: flex-start; font-size: 12.5px; font-weight: 600; color: var(--ink);
  background: rgba(78, 158, 196, 0.18); border: 1px solid rgba(78, 158, 196, 0.4);
  border-radius: 999px; padding: 4px 14px; margin-bottom: 14px;
}
.tag.gray { color: var(--ink-3); background: rgba(255, 255, 255, 0.05); border-color: var(--glass-line); }
.card h3 { font-size: 20px; line-height: 1.5; margin-bottom: 10px; color: var(--ink); }
.card h3 a { color: var(--ink); }
.card h3 a:hover { text-decoration: none; color: var(--brand); }
.card p.desc { color: var(--ink-2); font-size: 15px; margin-bottom: 18px; }
.card ul { list-style: none; margin-bottom: 22px; }
.card ul li { position: relative; padding-left: 24px; font-size: 15px; color: var(--ink-2); margin-bottom: 8px; }
.card ul li::before { content: "·"; position: absolute; left: 8px; color: var(--brand); font-weight: 700; }
.card .foot { margin-top: auto; padding-top: 20px; border-top: 1px solid var(--line); }
.price-row { display: flex; align-items: baseline; gap: 10px; margin-bottom: 16px; }
.price { font-size: 32px; font-weight: 700; letter-spacing: -0.5px; color: var(--ink); }
.price-note { font-size: 13.5px; color: var(--ink-3); }

.card.soon { background: rgba(255, 255, 255, 0.03); border-style: dashed; border-color: var(--line); }
.card.soon h3 { color: var(--ink-2); font-size: 18px; }
.card.soon p.desc { font-size: 14px; color: var(--ink-3); margin-bottom: 0; }
.soon-label { font-size: 12.5px; color: var(--ink-3); margin-top: 16px; }

/* 分类页 */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.single { max-width: 680px; }

/* ---------- 九宫格 ---------- */
.grid-nine {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
  max-width: 720px; margin: 0 auto;
}
.grid-nine .cell {
  background: var(--card-deep); border: 1px solid var(--line); border-radius: 12px;
  padding: 26px 20px; position: relative; text-align: center;
}
.grid-nine .cell span.no {
  position: absolute; top: 10px; left: 14px;
  font-size: 12px; color: var(--accent); opacity: .85;
}
.grid-nine .cell strong { font-size: 19px; font-weight: 600; letter-spacing: 1px; color: var(--ink); }

/* ---------- 特性列表 ---------- */
.feats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feat {
  background: var(--glass); border: 1px solid var(--glass-line); border-radius: 12px;
  padding: 22px;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.feat h3 { font-size: 16px; margin-bottom: 6px; color: var(--ink); }
.feat p { font-size: 14.5px; color: var(--ink-2); }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin: 0 auto; }
.faq details {
  border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 22px; margin-bottom: 12px; background: var(--card);
}
.faq summary { cursor: pointer; font-weight: 600; font-size: 16px; list-style: none; color: var(--ink); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "＋"; float: right; color: var(--ink-3); font-weight: 400; }
.faq details[open] summary::after { content: "－"; }
.faq details p { margin-top: 12px; color: var(--ink-2); font-size: 15px; }

/* ---------- 结尾 CTA（毛玻璃大卡） ---------- */
.final { text-align: center; }
.final .wrap {
  background: var(--glass); border: 1px solid var(--glass-line);
  border-radius: 18px; padding: 52px 32px;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.final h2 { font-size: 28px; margin-bottom: 12px; letter-spacing: -0.3px; color: var(--ink); }
.final p { color: var(--ink-3); margin-bottom: 26px; }

/* ---------- 面包屑 ---------- */
.crumb { font-size: 13.5px; color: var(--ink-3); padding: 22px 0 0; }
.crumb a { color: var(--ink-3); }
.crumb span { margin: 0 6px; }

/* ---------- 详情页 ---------- */
.p-illo-img {
  display: block; width: auto; height: 190px;
  margin: 28px auto 6px;
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 0 36px;
}
.p-hero { padding: 8px 0 56px; border-bottom: 1px solid var(--line); }
.p-hero .inner { display: grid; grid-template-columns: 1.35fr 1fr; gap: 56px; align-items: start; }
.p-hero h1 { font-size: 36px; line-height: 1.36; letter-spacing: -0.4px; margin-bottom: 16px; color: var(--ink); }
.p-hero h1 .dim { color: var(--ink-3); font-weight: 400; }
.p-hero .sub { font-size: 17px; color: var(--ink-2); margin-bottom: 24px; }
.p-hero .pts { list-style: none; }
.p-hero .pts li { position: relative; padding-left: 22px; font-size: 14.5px; color: var(--ink-2); margin-bottom: 6px; }
.p-hero .pts li::before { content: "◦"; position: absolute; left: 6px; color: var(--accent); }

.buybox {
  border: 1px solid var(--glass-line); border-radius: var(--radius); padding: 28px;
  background: var(--glass);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.buybox .price-row { margin-bottom: 4px; }
.buybox .meta { font-size: 13.5px; color: var(--ink-3); margin-bottom: 20px; }
.buybox .facts { list-style: none; margin: 20px 0 0; border-top: 1px solid var(--line); padding-top: 18px; }
.buybox .facts li { display: flex; justify-content: space-between; font-size: 14px; color: var(--ink-2); padding: 5px 0; }
.buybox .facts li b { font-weight: 500; color: var(--ink); }

.p-sec { padding: 56px 0; border-bottom: 1px solid var(--line); }
.p-sec:last-of-type { border-bottom: none; }
.p-sec h2 { font-size: 24px; margin-bottom: 18px; letter-spacing: -0.2px; color: var(--ink); }
.p-sec h3 { font-size: 17px; margin: 22px 0 8px; color: var(--ink); }
.p-sec p { color: var(--ink-2); margin-bottom: 12px; }
.p-sec ul, .p-sec ol { padding-left: 22px; color: var(--ink-2); }
.p-sec li { margin-bottom: 7px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.panel { border: 1px solid var(--line); border-radius: 12px; padding: 24px; background: var(--card); }
.panel h4 { font-size: 15px; margin-bottom: 10px; color: var(--brand); }
.panel ul { list-style: none; padding: 0; }
.panel li { position: relative; padding-left: 20px; font-size: 14.5px; color: var(--ink-2); margin-bottom: 6px; }
.panel li::before { content: "·"; position: absolute; left: 7px; color: var(--brand); }
.muted { color: var(--ink-3); font-size: 14px; }
.note {
  background: rgba(232, 118, 10, 0.10); border: 1px solid rgba(232, 118, 10, 0.35);
  border-radius: 12px;
  padding: 16px 20px; font-size: 14.5px; color: #F3C89E; margin: 18px 0;
}
.note.blue {
  background: rgba(78, 158, 196, 0.12); border-color: rgba(78, 158, 196, 0.4);
  color: #BFE0EF;
}

table.spec { width: 100%; border-collapse: collapse; font-size: 14.5px; margin: 8px 0 4px; }
table.spec th, table.spec td { border-bottom: 1px solid var(--line); padding: 11px 8px; text-align: left; vertical-align: top; }
table.spec th { width: 26%; color: var(--ink-3); font-weight: 500; }
table.spec td { color: var(--ink-2); }
table.cmp { width: 100%; border-collapse: collapse; font-size: 14.5px; background: var(--card); }
table.cmp th, table.cmp td { border: 1px solid var(--line); padding: 12px 14px; text-align: left; vertical-align: top; color: var(--ink-2); }
table.cmp thead th { background: var(--card-deep); font-weight: 600; color: var(--ink); }

/* ---------- 条款/隐私文档 ---------- */
.doc { padding: 44px 0 80px; }
.doc h1 { font-size: 30px; margin-bottom: 6px; letter-spacing: -0.3px; color: var(--ink); }
.doc .updated { color: var(--ink-3); font-size: 13.5px; margin-bottom: 32px; }
.doc h2 { font-size: 20px; margin: 34px 0 12px; color: var(--ink); }
.doc h3 { font-size: 16px; margin: 20px 0 8px; color: var(--ink); }
.doc p, .doc li { color: var(--ink-2); font-size: 15.5px; }
.doc ul, .doc ol { padding-left: 22px; margin: 10px 0; }
.doc table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14.5px; }
.doc th, .doc td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; vertical-align: top; color: var(--ink-2); }
.doc th { background: var(--card-deep); font-weight: 500; color: var(--ink); }

/* ---------- 页脚 ---------- */
footer.site { background: var(--bg-deep); border-top: 1px solid var(--glass-line); padding: 46px 0 34px; }
.foot-top { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.foot-brand .name { font-size: 17px; font-weight: 700; margin-bottom: 6px; color: var(--ink); }
.foot-brand p { font-size: 14px; color: var(--ink-3); }
.foot-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.foot-col h4 { font-size: 13px; color: var(--ink-3); font-weight: 500; margin-bottom: 10px; }
.foot-col a { display: block; font-size: 14px; color: var(--ink-2); margin-bottom: 6px; }
.foot-bottom {
  margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--glass-line);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: var(--ink-3);
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .hero { min-height: auto; padding: 64px 0 58px; }
  .hero-visual { width: 100%; opacity: 0.32; }
  .hero-visual::before { background:
    linear-gradient(to right, var(--bg) 0%, rgba(11,46,54,0.55) 40%, rgba(11,46,54,0) 100%),
    linear-gradient(to bottom, var(--bg) 0%, rgba(11,46,54,0) 40%),
    linear-gradient(to top, var(--bg) 0%, rgba(11,46,54,0) 40%);
  }
  .hero h1 { font-size: 31px; }
  .hero p.lead { font-size: 17px; }
  section { padding: 56px 0; }
  .cards, .feats, .two-col { grid-template-columns: 1fr; }
  .cards-3 { grid-template-columns: 1fr; }
  .feats { gap: 18px; }
  .p-hero .inner { grid-template-columns: 1fr; gap: 28px; }
  .p-hero h1 { font-size: 26px; }
  .nav-links { gap: 18px; }
  .nav-links a { font-size: 14px; }
  .nav-right { gap: 14px; }
  .logo span { display: none; }
  .grid-nine { gap: 10px; }
  .grid-nine .cell { padding: 20px 10px; }
  .grid-nine .cell strong { font-size: 16px; }
  .foot-cols { gap: 36px; }
  .final .wrap { padding: 36px 20px; }
}
@media (max-width: 560px) {
  .nav-links { display: none; }
  .sec-head h2 { font-size: 23px; }
  table.cmp { font-size: 13px; }
  table.cmp th, table.cmp td { padding: 9px 10px; }
  .card.media .card-img { height: 130px; }
  .p-illo-img { height: 130px; }
}