/* 王老息官网 · v5 新中式编辑风：墨黑 / 暖纸 / 朱砂 / 旧金
   不引用任何外部字体或 CDN，保证国内访问速度与备案要求下的可用性。 */
:root {
  --ink: #292C24;
  --ink-2: #3A3D33;
  --paper: #F6F3EB;
  --paper-deep: #EFEADF;
  --card: #FFFDF8;
  --line: #E2DDD2;
  --line-strong: #D4CCBC;
  --muted: #6A6457;
  --rust: #A84936;
  --rust-soft: #F6E9E3;
  --gold: #BFA471;
  --gold-light: #E6D2A6;
  --gold-soft: #F4EDDD;
  --serif: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --num: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
  --wrap: 1120px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.num { font-family: var(--num); font-variant-numeric: tabular-nums; }
.serif { font-family: var(--serif); }

/* 印章 */
.seal { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 6px; background: var(--rust); color: #FBEFE6; font: 600 21px/1 var(--serif); box-shadow: inset 0 0 0 2px var(--rust), inset 0 0 0 3px rgba(245, 216, 204, .45); flex: none; }

/* 顶部导航 */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(246, 243, 235, .88); backdrop-filter: saturate(1.2) blur(10px); -webkit-backdrop-filter: saturate(1.2) blur(10px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.nav.scrolled { border-bottom-color: var(--line); }
.nav .wrap { display: flex; align-items: center; height: 64px; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; font: 600 20px/1 var(--serif); letter-spacing: 4px; }
.nav-links { display: flex; gap: 26px; margin-left: auto; font-size: 15px; color: var(--muted); }
.nav-links a:hover { color: var(--ink); }
.nav-cta { height: 38px; padding: 0 16px; display: inline-flex; align-items: center; border-radius: 10px; background: var(--ink); color: #FFF5E6; font-size: 14px; font-weight: 500; white-space: nowrap; }

/* 首屏 */
.hero { position: relative; overflow: hidden; padding: 72px 0 88px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 56px; }
.eyebrow { font-size: 13px; letter-spacing: 4px; color: var(--rust); font-weight: 500; }
.hero h1 { font: 600 clamp(40px, 5.6vw, 64px)/1.25 var(--serif); letter-spacing: 2px; margin: 16px 0 20px; }
.hero h1 em { font-style: normal; color: var(--rust); }
.lede { font-size: 18px; color: var(--muted); max-width: 30em; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 34px; }
.btn { display: inline-flex; align-items: center; gap: 8px; height: 50px; padding: 0 22px; border-radius: 12px; font-size: 16px; font-weight: 500; transition: transform .15s, background .15s; }
.btn:active { transform: scale(.98); }
.btn-ink { background: var(--ink); color: #FFF5E6; }
.btn-ink:hover { background: var(--ink-2); }
.btn-line { border: 1px solid var(--line-strong); background: var(--card); }
.btn-line:hover { border-color: var(--ink); }
.soon { font-size: 12px; padding: 2px 8px; border-radius: 6px; background: rgba(230, 210, 166, .2); color: var(--gold-light); border: 1px solid rgba(230, 210, 166, .35); }
.principles { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 30px; font-size: 14px; color: var(--muted); }
.principles span::before { content: "✳"; color: var(--gold); margin-right: 6px; }
.hero-rings { position: absolute; right: -180px; top: -160px; width: 620px; height: 620px; pointer-events: none; opacity: .55; }

/* 手机示意 */
.phone { position: relative; width: 320px; margin: 0 auto; padding: 14px; border-radius: 46px; background: #1F221B; box-shadow: 0 40px 80px -30px rgba(41, 44, 36, .55), 0 0 0 1px #3A3D33; }
.phone-screen { border-radius: 34px; overflow: hidden; background: var(--paper); padding: 18px 14px 20px; }
.ph-top { display: flex; align-items: center; justify-content: space-between; padding: 4px 4px 14px; }
.ph-brand { display: flex; align-items: center; gap: 8px; font: 600 15px/1 var(--serif); letter-spacing: 3px; }
.ph-brand .seal { width: 24px; height: 24px; font-size: 14px; border-radius: 5px; }
.ph-capsule { width: 64px; height: 24px; border-radius: 12px; border: 1px solid var(--line-strong); background: var(--card); }
.ph-card { position: relative; overflow: hidden; border-radius: 18px; background: var(--ink); color: #FBF6EB; padding: 14px 14px 0; }
.ph-card .rings { position: absolute; right: -70px; top: -80px; width: 210px; height: 210px; opacity: .6; }
.ph-days { position: relative; font-size: 11.5px; color: #D9D5C7; }
.ph-days b { font: 600 17px/1 var(--serif); color: var(--gold-light); margin: 0 3px; }
.ph-kicker { position: relative; margin-top: 9px; padding-top: 9px; border-top: 1px solid rgba(255, 247, 236, .08); font-size: 10.5px; color: #C7C5B8; }
.ph-big { position: relative; margin-top: 6px; font: 700 31px/1.1 var(--num); color: #FFF8EA; }
.ph-big small { font-size: 15px; color: #C9C3B2; font-weight: 500; }
.ph-big .cur { font-size: 15px; color: var(--gold-light); vertical-align: 11px; margin-right: 2px; }
.ph-grid { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 12px; border-top: 1px solid rgba(255, 247, 236, .08); }
.ph-grid div { padding: 8px 0 8px 8px; border-left: 1px solid rgba(255, 247, 236, .08); }
.ph-grid div:nth-child(3n+1) { padding-left: 0; border-left: 0; }
.ph-grid small { display: block; font-size: 9.5px; color: #BCB9AC; }
.ph-grid b { font: 600 13px var(--num); color: var(--gold-light); }
.ph-actions { position: relative; display: flex; justify-content: space-around; border-top: 1px solid rgba(255, 247, 236, .08); margin-top: 4px; font-size: 10.5px; color: #D9D5C7; line-height: 34px; }
.ph-quote { display: flex; align-items: center; gap: 8px; margin-top: 10px; padding: 9px 10px; border-radius: 10px; background: var(--gold-soft); border: 1px solid rgba(191, 164, 113, .28); font: 11.5px var(--serif); color: #4A4436; }
.ph-quote .seal { width: 18px; height: 18px; font-size: 11px; border-radius: 4px; }
.ph-hold { margin-top: 10px; padding: 10px; border-radius: 12px; background: var(--card); border: 1px solid var(--line); display: flex; align-items: center; gap: 9px; }
.ph-hold .av { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; background: var(--gold-soft); border: 1px solid rgba(191, 164, 113, .28); font: 600 14px var(--serif); }
.ph-hold .nm { flex: 1; font-size: 12.5px; font-weight: 600; line-height: 1.3; }
.ph-hold .nm small { display: block; font-size: 10px; color: var(--muted); font-weight: 400; }
.ph-hold .amt { text-align: right; font: 600 13px var(--num); line-height: 1.3; }
.ph-hold .amt small { display: block; font: 10px var(--sans); color: var(--rust); }
.demo-note { text-align: center; margin-top: 14px; font-size: 12px; color: var(--muted); }

/* 通用区块 */
section { padding: 96px 0; }
.sec-head { max-width: 640px; margin-bottom: 48px; }
.sec-head h2 { font: 600 clamp(28px, 3.4vw, 38px)/1.35 var(--serif); letter-spacing: 1px; margin-top: 10px; }
.sec-head p { margin-top: 12px; color: var(--muted); font-size: 17px; }
.band { background: var(--card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* 功能 */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.feat { padding: 30px 28px 34px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--card); }
.feat .idx { font: 600 13px var(--num); color: var(--gold); letter-spacing: 2px; }
.feat h3 { font-size: 19px; font-weight: 600; margin: 10px 0 8px; }
.feat p { font-size: 15px; color: var(--muted); }
.feat .tag { display: inline-block; margin-top: 12px; font-size: 12px; padding: 1px 8px; border-radius: 6px; color: var(--rust); background: var(--rust-soft); }

/* 口径 */
.rules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.rule { padding: 28px; border-radius: 16px; border: 1px solid var(--line); background: var(--paper); }
.rule .k { font-size: 13px; color: var(--muted); }
.rule .formula { margin: 10px 0 12px; font: 600 18px/1.5 var(--serif); }
.rule .formula i { font-style: normal; color: var(--rust); }
.rule p { font-size: 14.5px; color: var(--muted); }

/* 隐私摘要 */
.privacy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.plist { list-style: none; border-top: 1px solid var(--line-strong); }
.plist li { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.plist b { flex: none; width: 112px; font-weight: 600; }
.plist span { color: var(--muted); font-size: 15px; }
.link-more { display: inline-flex; margin-top: 22px; color: var(--rust); font-weight: 500; border-bottom: 1px solid rgba(168, 73, 54, .3); }

/* 结尾 CTA */
.closing { position: relative; overflow: hidden; background: var(--ink); color: #FBF6EB; text-align: center; padding: 96px 0; }
.closing .rings { position: absolute; left: 50%; top: 50%; width: 760px; height: 760px; transform: translate(-50%, -50%); opacity: .35; pointer-events: none; }
.closing h2 { position: relative; font: 600 clamp(28px, 3.6vw, 42px)/1.4 var(--serif); letter-spacing: 2px; }
.closing p { position: relative; margin-top: 14px; color: #C7C5B8; }
.closing .search { position: relative; display: inline-flex; align-items: center; gap: 12px; margin-top: 30px; padding: 14px 22px; border-radius: 14px; border: 1px solid rgba(230, 210, 166, .35); font-size: 17px; }
.closing .search b { font-family: var(--serif); color: var(--gold-light); letter-spacing: 2px; }

/* 页脚 */
footer { padding: 40px 0 48px; font-size: 13px; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; }
.foot-brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font: 600 16px var(--serif); letter-spacing: 3px; }
.foot-brand .seal { width: 26px; height: 26px; font-size: 15px; border-radius: 5px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 22px; align-items: center; }
.foot-links a:hover { color: var(--ink); }
.disclaimer { width: 100%; padding-top: 18px; border-top: 1px solid var(--line); line-height: 1.8; }

/* 文档页（隐私说明） */
.doc { max-width: 760px; padding: 64px 24px 80px; margin: 0 auto; }
.doc h1 { font: 600 36px/1.4 var(--serif); letter-spacing: 1px; margin: 10px 0 8px; }
.doc .meta { color: var(--muted); font-size: 14px; margin-bottom: 36px; }
.doc h2 { font: 600 21px/1.5 var(--serif); margin: 40px 0 12px; padding-top: 22px; border-top: 1px solid var(--line); }
.doc p, .doc li { color: var(--ink-2); font-size: 16px; }
.doc ul { padding-left: 1.2em; margin-top: 8px; }
.doc li { margin: 6px 0; }
.doc .note { margin-top: 14px; padding: 14px 16px; border-left: 3px solid var(--gold-light); background: var(--card); color: var(--muted); font-size: 15px; }

/* 响应式 */
@media (max-width: 900px) {
  .hero { padding: 40px 0 64px; }
  .hero .wrap, .privacy-grid { grid-template-columns: 1fr; gap: 44px; }
  .features, .rules { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .nav-cta { margin-left: auto; }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  section { padding: 64px 0; }
  .features, .rules { grid-template-columns: 1fr; }
  .lede { font-size: 16px; }
  .phone { width: 296px; }
  .plist b { width: 88px; }
  .closing .search { font-size: 15px; padding: 12px 16px; }
  .nav-cta { display: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }