/* 伯瑞蓝图长寿抗衰中心 — 站点样式（本地打包，无外部依赖） */
:root{
  --navy:#0B1D33;
  --navy-2:#12283F;
  --navy-3:#1B3A57;
  --gold:#BFA06A;
  --gold-soft:#D8C39A;
  --paper:#FAF8F4;
  --white:#FFFFFF;
  --ink:#17222E;
  --muted:#5A6673;
  --line:#E6E0D3;
  --radius:6px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px;}

/* ---------- 页眉 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(1.2) blur(6px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:14px 24px;max-width:1120px;margin:0 auto;
}
.brand{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.brand-cn{font-size:17px;font-weight:700;letter-spacing:.06em;color:var(--navy);}
.brand-en{font-size:10.5px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:var(--radius);
  padding:8px 12px;font-size:14px;color:var(--navy);cursor:pointer;font-family:inherit;}
.site-nav{display:flex;align-items:center;gap:4px;}
.site-nav a{
  padding:8px 12px;font-size:14.5px;color:var(--ink);border-radius:var(--radius);
}
.site-nav a:hover{background:var(--paper);color:var(--navy);}
.site-nav a.active{color:var(--navy);font-weight:600;box-shadow:inset 0 -2px 0 var(--gold);}
.nav-cta{
  margin-left:8px;background:var(--navy);color:#fff !important;padding:9px 18px !important;
  border-radius:var(--radius);font-weight:600;
}
.nav-cta:hover{background:var(--navy-3) !important;}
@media (max-width:860px){
  .nav-toggle{display:block;}
  .site-nav{
    display:none;position:absolute;left:0;right:0;top:100%;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;padding:8px 16px 16px;gap:2px;
  }
  .site-nav.open{display:flex;}
  .site-nav a{padding:12px 10px;font-size:15px;}
  .nav-cta{margin:8px 0 0;text-align:center;}
  .header-inner{position:relative;}
}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;color:#fff;background:var(--navy);
  overflow:hidden;
}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;}
.hero-inner{
  position:relative;max-width:1120px;margin:0 auto;
  padding:96px 24px 72px;
}
.hero-logo{width:230px;max-width:60vw;margin-bottom:28px;}
.hero-kicker{
  display:inline-block;font-size:13px;letter-spacing:.28em;color:var(--gold-soft);
  border:1px solid rgba(216,195,154,.5);padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(28px,4.6vw,46px);line-height:1.3;font-weight:700;
  letter-spacing:.02em;max-width:820px;
}
.hero .lead{
  margin-top:20px;font-size:clamp(15px,1.8vw,18px);color:rgba(255,255,255,.82);
  max-width:760px;
}
.hero-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px;}
.btn{
  display:inline-block;padding:13px 26px;border-radius:var(--radius);
  font-weight:600;font-size:15px;letter-spacing:.04em;transition:background .2s,color .2s;
}
.btn-gold{background:var(--gold);color:var(--navy);}
.btn-gold:hover{background:var(--gold-soft);}
.btn-ghost{border:1px solid rgba(255,255,255,.55);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.12);}
.btn-navy{background:var(--navy);color:#fff;}
.btn-navy:hover{background:var(--navy-3);}
.fact-strip{
  position:relative;border-top:1px solid rgba(255,255,255,.16);
  background:rgba(6,17,30,.55);
}
.fact-strip .wrap{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding-top:26px;padding-bottom:26px;
}
.fact-item .num{font-size:22px;font-weight:700;color:var(--gold-soft);letter-spacing:.02em;}
.fact-item .lbl{font-size:13px;color:rgba(255,255,255,.72);margin-top:2px;}
@media (max-width:860px){
  .fact-strip .wrap{grid-template-columns:repeat(2,1fr);}
  .hero-inner{padding:72px 24px 56px;}
}

/* ---------- 通用区块 ---------- */
.section{padding:76px 0;}
.section.tight{padding:56px 0;}
.section.white{background:var(--white);}
.section.navy{background:var(--navy);color:#fff;}
.eyebrow{
  font-size:12.5px;letter-spacing:.3em;color:var(--gold);
  text-transform:uppercase;font-weight:600;margin-bottom:12px;
}
.section.navy .eyebrow{color:var(--gold-soft);}
h2.sec-title{font-size:clamp(23px,3vw,32px);line-height:1.35;color:var(--navy);font-weight:700;}
.section.navy h2.sec-title{color:#fff;}
.sec-sub{margin-top:14px;color:var(--muted);max-width:780px;font-size:16px;}
.section.navy .sec-sub{color:rgba(255,255,255,.78);}
.sec-head{margin-bottom:42px;}
.center{text-align:center;}
.center .sec-sub{margin-left:auto;margin-right:auto;}

.split{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;}
.split.rev{grid-template-columns:1fr 1.05fr;}
.split figure img{border-radius:var(--radius);width:100%;}
.split figcaption{font-size:13px;color:var(--muted);margin-top:10px;}
@media (max-width:860px){
  .split,.split.rev{grid-template-columns:1fr;gap:28px;}
}

/* 列表与卡片 */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-5{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
@media (max-width:960px){.grid-5{grid-template-columns:repeat(3,1fr);}.grid-3{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.grid-2,.grid-3,.grid-5{grid-template-columns:1fr;}}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;
}
.card .idx{
  font-size:13px;letter-spacing:.2em;color:var(--gold);font-weight:700;margin-bottom:10px;
}
.card h3{font-size:17.5px;color:var(--navy);margin-bottom:8px;line-height:1.4;}
.card p{font-size:14.5px;color:var(--muted);}
.card.flat{background:transparent;border-color:rgba(255,255,255,.2);}
.card.flat h3{color:#fff;}
.card.flat p{color:rgba(255,255,255,.75);}

/* 事实条 */
.facts-band{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.facts-band .wrap{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  padding-top:30px;padding-bottom:30px;text-align:center;
}
.facts-band .num{font-size:26px;font-weight:700;color:var(--navy);}
.facts-band .num em{font-style:normal;color:var(--gold);}
.facts-band .lbl{font-size:13px;color:var(--muted);}
@media (max-width:860px){.facts-band .wrap{grid-template-columns:repeat(2,1fr);}}

/* 层级列表（产品体系） */
.tier{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);margin-bottom:22px;overflow:hidden;}
.tier-head{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 16px;
  padding:20px 26px;background:var(--navy);color:#fff;
}
.tier-head .tier-tag{font-size:12px;letter-spacing:.24em;color:var(--gold-soft);font-weight:600;}
.tier-head h3{font-size:19px;font-weight:700;}
.tier-head .tier-note{font-size:13px;color:rgba(255,255,255,.7);margin-left:auto;}
.tier-body{padding:22px 26px;}
.program-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 28px;}
@media (max-width:640px){.program-list{grid-template-columns:1fr;}}
.program{border-left:2px solid var(--gold);padding:4px 0 4px 14px;}
.program h4{font-size:15.5px;color:var(--navy);margin-bottom:2px;}
.program p{font-size:13.5px;color:var(--muted);line-height:1.6;}

/* 流程 */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
@media (max-width:960px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (max-width:560px){.steps{grid-template-columns:1fr;}}
.step{
  counter-increment:step;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 18px;position:relative;
}
.step::before{
  content:"0" counter(step);display:block;font-size:13px;letter-spacing:.16em;
  color:var(--gold);font-weight:700;margin-bottom:8px;
}
.step h4{font-size:15.5px;color:var(--navy);margin-bottom:6px;}
.step p{font-size:13.5px;color:var(--muted);line-height:1.65;}

/* 疗法条目 */
.therapy{
  display:grid;grid-template-columns:180px 1fr 300px;gap:28px;padding:34px 0;
  border-bottom:1px solid var(--line);
}
.therapy figure img{border-radius:var(--radius);width:100%;border:1px solid var(--line);}
@media (max-width:960px){
  .therapy{grid-template-columns:150px 1fr;}
  .therapy figure{grid-column:1 / -1;max-width:460px;}
}
.therapy:last-child{border-bottom:none;}
.therapy .t-no{
  font-size:13px;letter-spacing:.2em;color:var(--gold);font-weight:700;
}
.therapy h3{font-size:19px;color:var(--navy);margin:6px 0 8px;}
.therapy .t-en{font-size:12.5px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;}
.therapy p{font-size:14.5px;color:var(--muted);max-width:720px;}
.therapy .t-tags{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px;}
.therapy .t-tags span{
  font-size:12.5px;color:var(--navy);background:var(--paper);
  border:1px solid var(--line);border-radius:999px;padding:4px 12px;
}
@media (max-width:640px){.therapy{grid-template-columns:1fr;gap:10px;}.therapy figure{max-width:100%;}}

/* 引用条 */
.quote-band{
  background:var(--navy);color:#fff;padding:60px 0;text-align:center;
}
.quote-band blockquote{
  font-size:clamp(18px,2.6vw,26px);line-height:1.6;max-width:860px;margin:0 auto;
  font-weight:600;
}
.quote-band .src{margin-top:16px;font-size:13px;letter-spacing:.2em;color:var(--gold-soft);}

/* 页脚 */
.site-footer{background:#081626;color:rgba(255,255,255,.72);padding:56px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:40px;}
.footer-grid img.f-logo{width:190px;margin-bottom:16px;}
.footer-grid h4{color:#fff;font-size:14px;letter-spacing:.12em;margin-bottom:14px;font-weight:600;}
.footer-grid ul{list-style:none;}
.footer-grid li{margin-bottom:8px;}
.footer-grid a:hover{color:var(--gold-soft);}
.footer-note{
  border-top:1px solid rgba(255,255,255,.14);padding:18px 0 22px;
  font-size:12.5px;color:rgba(255,255,255,.5);line-height:1.8;
}
.attribution{
  border-top:1px solid rgba(255,255,255,.14);padding:16px 0;
  font-size:13px;color:rgba(255,255,255,.6);text-align:center;
}
.attribution a{color:var(--gold-soft);text-decoration:underline;}
@media (max-width:760px){.footer-grid{grid-template-columns:1fr;gap:26px;}}

/* 面包屑 */
.crumb{font-size:13px;color:var(--muted);padding:18px 0 0;}
.crumb a{color:var(--navy);}
.crumb a:hover{text-decoration:underline;}
.page-head{background:var(--white);border-bottom:1px solid var(--line);padding:20px 0 46px;}
.page-head h1{font-size:clamp(26px,3.6vw,38px);color:var(--navy);margin-top:10px;line-height:1.3;}
.page-head .page-sub{margin-top:14px;color:var(--muted);max-width:820px;font-size:16px;}

.notice{
  background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--gold);
  border-radius:var(--radius);padding:18px 22px;font-size:13.5px;color:var(--muted);
}
.qr-panel{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
@media (max-width:760px){.qr-panel{grid-template-columns:1fr;}}
.qr-panel img{border-radius:var(--radius);border:1px solid var(--line);}