/* 智悦 · 法律条款页公共样式（privacy.html / terms.html 共用）
   风格与官网 site/index.html 一致：深色底、青紫渐变。
   改这里会同时影响两份文档，单页特例写在页面内联 <style> 里。 */

*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#05070d;--ink:#e9effb;--ink-2:#93a1b8;--ink-3:#5b6980;
  --cyan:#3ddcff;--violet:#7c6cff;--warm:#ffb457;
  --line:rgba(255,255,255,.08);--panel:rgba(255,255,255,.028);
  -webkit-text-size-adjust:100%;
}
html{scroll-behavior:smooth}
body{
  min-height:100vh;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  -webkit-font-smoothing:antialiased;line-height:1.85;font-size:15px;
  overflow-x:hidden;
}

/* 背景：网格 + 两道光晕，与官网同款 */
.bg{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,190,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,190,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 78% 52% at 50% 0%,#000 4%,transparent 74%);
          mask-image:radial-gradient(ellipse 78% 52% at 50% 0%,#000 4%,transparent 74%);
}
.glow{position:absolute;border-radius:50%;filter:blur(120px);opacity:.5}
.g1{width:560px;height:560px;top:-240px;left:50%;transform:translateX(-64%);
  background:radial-gradient(circle,rgba(61,220,255,.34),transparent 68%)}
.g2{width:460px;height:460px;top:480px;right:-160px;
  background:radial-gradient(circle,rgba(124,108,255,.26),transparent 70%)}

/* 顶栏 */
.topbar{
  position:sticky;top:0;z-index:20;
  border-bottom:1px solid var(--line);
  background:rgba(5,7,13,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.topbar-in{
  max-width:880px;margin:0 auto;padding:0 24px;height:62px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.logo{display:inline-flex;align-items:center;gap:9px;font-size:16px;font-weight:700;
  letter-spacing:.06em;text-decoration:none;color:var(--ink)}
.logo svg{width:25px;height:25px;flex:none}
.logo em{font-style:normal;background:linear-gradient(100deg,#dff4ff,#3ddcff 46%,#7c6cff);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.topbar a.home{font-size:13.4px;color:var(--ink-2);text-decoration:none;
  padding:6px 13px;border:1px solid var(--line);border-radius:8px;transition:all .2s}
.topbar a.home:hover{color:var(--cyan);border-color:rgba(61,220,255,.42);background:rgba(61,220,255,.06)}

/* 正文容器 */
main{position:relative;z-index:1;max-width:880px;margin:0 auto;padding:52px 24px 40px}

.tagline{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;color:var(--cyan);
  padding:5px 12px;border:1px solid rgba(61,220,255,.26);border-radius:999px;
  background:rgba(61,220,255,.06);margin-bottom:20px;
}
h1{font-size:32px;font-weight:750;letter-spacing:-.02em;line-height:1.32}
.meta{margin-top:14px;font-size:13.2px;color:var(--ink-3);display:flex;gap:18px;flex-wrap:wrap}
.meta b{color:var(--ink-2);font-weight:500}

.lead{
  margin-top:26px;padding:18px 20px;border-radius:12px;
  border:1px solid rgba(61,220,255,.18);
  background:linear-gradient(150deg,rgba(61,220,255,.07),rgba(124,108,255,.03));
  font-size:14.2px;color:#c8d6ea;line-height:1.9;
}
.lead b{color:#9fe8ff;font-weight:600}

/* 目录 */
.toc{
  margin-top:26px;padding:20px 22px;border-radius:12px;
  border:1px solid var(--line);background:var(--panel);
}
.toc h3,.toc summary{font-size:12.4px;letter-spacing:.14em;color:var(--ink-3);font-weight:600}
.toc summary{
  cursor:pointer;list-style:none;user-select:none;
  display:flex;align-items:center;justify-content:space-between;
  transition:color .18s;
}
.toc summary::-webkit-details-marker{display:none}
.toc summary::after{content:"展开";font-size:11.6px;letter-spacing:0;color:var(--cyan);opacity:.85}
.toc[open] summary{margin-bottom:14px}
.toc[open] summary::after{content:"收起"}
.toc summary:hover{color:var(--ink-2)}
.toc ol{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:9px 24px}
.toc a{font-size:13.6px;color:var(--ink-2);text-decoration:none;display:block;
  padding:2px 0;transition:color .18s}
.toc a:hover{color:var(--cyan)}

/* 章节 */
section{margin-top:44px;scroll-margin-top:84px}
h2{
  font-size:19.5px;font-weight:700;letter-spacing:-.01em;line-height:1.5;
  padding-bottom:12px;border-bottom:1px solid var(--line);
  display:flex;align-items:baseline;gap:11px;
}
h2 .no{
  flex:none;font-size:12.6px;font-weight:700;color:#031018;
  background:linear-gradient(100deg,#6ce6ff,#3ddcff);
  min-width:26px;height:23px;border-radius:6px;
  display:inline-flex;align-items:center;justify-content:center;
  letter-spacing:0;font-variant-numeric:tabular-nums;padding:0 3px;
}
h2 + p,h2 + table,h2 + ul,h2 + ol,h2 + .box{margin-top:18px}
h3{font-size:15.4px;font-weight:650;margin-top:24px;margin-bottom:8px;color:#dbe6f5}
p{color:var(--ink-2);margin-top:12px}
p b,li b,td b{color:#dce7f7;font-weight:600}

ul,ol{margin-top:12px;padding-left:22px;color:var(--ink-2)}
ul li,ol li{margin-top:8px;line-height:1.85}
ul{list-style:none;padding-left:0}
ul li{position:relative;padding-left:18px}
ul li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:5px;height:5px;border-radius:50%;background:rgba(61,220,255,.6);
}

/* 表格 */
.table-wrap{margin-top:18px;overflow-x:auto;border:1px solid var(--line);border-radius:11px}
table{width:100%;border-collapse:collapse;font-size:13.6px;min-width:560px}
th,td{text-align:left;padding:12px 14px;vertical-align:top;border-bottom:1px solid var(--line)}
th{font-size:12.4px;letter-spacing:.06em;color:var(--ink-3);font-weight:600;
  background:rgba(255,255,255,.028);white-space:nowrap}
td{color:var(--ink-2);line-height:1.7}
tr:last-child td{border-bottom:none}
td .must{color:#7ce0b0;font-weight:600}
td .opt{color:var(--warm);font-weight:600}

/* 强调框 */
.box{
  margin-top:20px;padding:16px 18px;border-radius:11px;
  border:1px solid rgba(255,180,87,.24);
  background:linear-gradient(150deg,rgba(255,180,87,.08),rgba(255,180,87,.02));
  font-size:13.8px;color:#e8d9c4;line-height:1.85;
}
.box b{color:#ffd39a}
.box.cyan{border-color:rgba(61,220,255,.22);
  background:linear-gradient(150deg,rgba(61,220,255,.07),rgba(61,220,255,.02));color:#cfe6f5}
.box.cyan b{color:#9fe8ff}

/* 联系方式块 */
.contact{
  margin-top:20px;padding:20px 22px;border-radius:12px;
  border:1px solid var(--line);background:var(--panel);
  display:grid;gap:12px;
}
.contact .row{display:flex;gap:14px;font-size:14px;align-items:baseline;flex-wrap:wrap}
.contact .row span:first-child{color:var(--ink-3);min-width:96px;font-size:13px;flex:none}
.contact .row span:last-child{color:#dce7f7}

/* 页脚 */
footer{
  position:relative;z-index:1;max-width:880px;margin:0 auto;
  padding:34px 24px 48px;border-top:1px solid var(--line);
}
.foot-links{display:flex;gap:20px;flex-wrap:wrap;font-size:13px;margin-bottom:16px}
.foot-links a{color:var(--ink-2);text-decoration:none;transition:color .2s}
.foot-links a:hover{color:var(--cyan)}
.foot-links a.on{color:var(--cyan)}
.copy{font-size:12.4px;color:var(--ink-3);line-height:2}
.copy a{color:var(--ink-3);text-decoration:none;display:inline-block;white-space:nowrap}
.copy a:hover{color:#9fe8ff}

@media (max-width:640px){
  body{font-size:14.6px}
  main{padding:36px 18px 28px}
  h1{font-size:25px}
  h2{font-size:17.5px}
  .meta{gap:6px 14px;font-size:12.6px}
  .lead{padding:15px 16px;font-size:13.8px}
  .toc{padding:16px 18px;margin-top:22px}
  .toc ol{grid-template-columns:1fr;gap:0}
  .toc li{margin-top:0;border-bottom:1px solid rgba(255,255,255,.05)}
  .toc li:last-child{border-bottom:none}
  .toc a{padding:10px 0;font-size:14px}
  .topbar-in{padding:0 18px}
  .contact .row span:first-child{min-width:100%;margin-bottom:-6px}
  footer{padding:28px 18px 40px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto!important}
}