:root{--bg:#f5f4fa;--bgB:#f0f1f9;--paper:#fff;--ink:#1c2335;--muted:#707c90;--light:#8c95a6;--line:#e5e3ef;--mint:#23cfc4;--mintDark:#168b86;--pink:#ce65a2;--pinkBg:#fce2f1;--violet:#8468ca;--violetBg:#ede7ff;--max:1200px}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;color:var(--ink);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}img{display:block;max-width:100%;height:auto}svg{display:block;flex:none}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #2acac0;outline-offset:3px}h1,h2,h3,p{margin-top:0}.wrap{width:min(calc(100% - 64px),var(--max));margin-inline:auto}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip{position:absolute;top:-100px;left:20px;z-index:1000;background:var(--mint);color:#062a2b;border-radius:10px;padding:12px 18px}.skip:focus{top:12px}
/* brand/header */
.header{position:sticky;top:0;z-index:50;border-bottom:1px solid #e6e3ee;background:rgba(250,249,253,.93);backdrop-filter:blur(18px)}.nav{height:86px;display:flex;align-items:center;justify-content:space-between;gap:26px}.brand{display:inline-flex;align-items:center;flex:none}.brand img{width:164px;height:auto}.links{display:flex;align-items:center;gap:27px}.links a{font-size:13px;font-weight:650;color:#515e73;transition:color .2s}.links a:hover{color:#148d86}.contact-btn{border:1px solid #cce8e7;background:#edfdfa;color:#168580;white-space:nowrap;font-weight:750;border-radius:999px;padding:12px 20px;font-size:13px;transition:background .2s}.contact-btn:hover{background:#e0faf6}.mobile-menu{display:none;width:44px;height:44px;border-radius:13px;background:#fff;color:#26384a;border:1px solid #dedfeb;align-items:center;justify-content:center;cursor:pointer}
/* hero */
.hero{background:radial-gradient(ellipse 51% 80% at 78% 35%,rgba(243,175,213,.23),transparent 75%),radial-gradient(ellipse 42% 67% at 15% 4%,rgba(54,216,203,.11),transparent 77%),linear-gradient(#fbfaff,#f5f3fa);padding:55px 0 52px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.14fr) minmax(0,.86fr);align-items:center;gap:40px;min-height:388px}.eyebrow{display:inline-flex;align-items:center;gap:9px;color:#128f8a;font-size:11px;font-weight:800;letter-spacing:.14em}.eyebrow:before{content:"";width:20px;height:3px;border-radius:3px;background:var(--mint)}.hero h1{font-size:clamp(38px,4.1vw,60px);font-weight:850;line-height:1.32;letter-spacing:-.045em;margin:23px 0 23px;max-width:650px}.hero h1 span{color:#0c9e95}.hero-copy>p{max-width:620px;font-size:16px;color:#637086;line-height:2.04;margin-bottom:29px}.hero-art{position:relative;display:grid;place-items:center;min-width:0;padding:14px}.hero-art:before{content:"";position:absolute;inset:8%;background:radial-gradient(ellipse,rgba(242,138,197,.18),rgba(180,156,232,.1) 45%,transparent 77%);filter:blur(15px)}.hero-art img{position:relative;width:82%;max-width:420px;object-fit:contain;filter:drop-shadow(0 19px 23px rgba(88,62,112,.15))}.actions{display:flex;flex-wrap:wrap;gap:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:49px;border:1px solid transparent;border-radius:999px;padding:13px 24px;font-size:14px;font-weight:750;transition:transform .2s,background .2s}.btn-primary{background:linear-gradient(105deg,#34dace,#64e9df);color:#073c3b;box-shadow:0 11px 25px rgba(35,207,196,.15)}.btn-secondary{background:#fff;border-color:#dddeea;color:#47556d;box-shadow:0 7px 15px rgba(30,35,60,.04)}.btn-violet{background:#f3effd;border-color:#e4d9f7;color:#7756bc}.btn:focus-visible{outline-offset:4px}.btn:not([aria-disabled="true"]):hover{transform:translateY(-2px)}.btn[aria-disabled="true"]{cursor:not-allowed;opacity:.76}.button-hint{font-size:11px;color:#8c95a6;margin:11px 0 0;line-height:1.6}
/* shared layout */
.section{padding:63px 0}.section-header{margin-bottom:27px}.kicker{display:block;margin-bottom:13px;font-size:11px;font-weight:850;letter-spacing:.19em;color:#a95b97}.kicker.purple{color:var(--violet)}.kicker.green{color:#168f89}.section h2{font-size:clamp(30px,3.7vw,43px);letter-spacing:-.04em;line-height:1.35;margin:0}.section p{line-height:1.88}.feature-section{background:#f4f3f9}.features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.feature{min-height:198px;background:#fff;border:1px solid #e7e4ee;border-radius:26px;padding:27px 27px 25px;box-shadow:0 12px 30px rgba(32,28,70,.035)}.feature-icon{width:44px;height:44px;display:grid;place-items:center;background:var(--pinkBg);color:#d5689f;border-radius:15px;margin-bottom:20px}.feature:nth-child(2) .feature-icon,.feature:nth-child(4) .feature-icon,.feature:nth-child(6) .feature-icon{background:var(--violetBg);color:#8269d0}.feature h3{font-size:16px;font-weight:800;letter-spacing:-.02em;margin:0 0 8px}.feature p{font-size:12.5px;color:#7a8496;margin:0;line-height:1.85}
/* router */
.router-section{background:linear-gradient(180deg,#f1f1f9,#f0f2f9)}.router-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:55px;align-items:center}.router-copy>p{font-size:14.5px;line-height:1.98;color:#718096;margin:23px 0}.router-list{display:grid;gap:14px;list-style:none;padding:0;margin:22px 0 21px}.router-list li{display:flex;gap:13px;align-items:flex-start;font-size:14px;line-height:1.78;color:#49556a}.check{width:23px;height:23px;border-radius:50%;background:#e9e4fc;color:#8065c9;display:grid;place-items:center;font-size:14px;font-weight:800;flex:none;margin-top:1px}.router-art{max-width:440px;width:89%;margin:auto;background:#fff;border:1px solid #e0deed;padding:10px;border-radius:26px;box-shadow:0 22px 50px rgba(58,53,112,.095)}.router-art img{border-radius:17px;width:100%;height:auto;object-fit:contain}.router-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.workflow{margin-top:30px;background:rgba(255,255,255,.83);border:1px solid #e3e1ef;box-shadow:0 10px 25px rgba(37,37,78,.035);border-radius:24px;padding:25px}.workflow-title{font-size:13px;color:#7563b6;font-weight:850;margin-bottom:18px}.route-flow{display:flex;align-items:stretch;justify-content:space-between;gap:10px}.flow-step{flex:1;min-height:70px;display:grid;place-items:center;text-align:center;padding:13px 10px;border:1px solid #e8e2f4;background:#f7f5fd;border-radius:15px;font-size:12px;font-weight:650;line-height:1.6;color:#5a527d}.flow-step b{color:#7456b1}.flow-arrow{display:grid;place-items:center;color:#9e91bd;font-size:19px;flex:none}
/* join+member */
.services-section{background:#f5f4fa}.intro{color:#738095;max-width:700px;font-size:14px;margin:15px 0 0}.service-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:21px}.service{background:#fff;border:1px solid #e7e4ee;border-radius:26px;padding:34px 34px 31px;box-shadow:0 13px 32px rgba(37,34,73,.04);display:flex;flex-direction:column;align-items:flex-start;min-height:297px}.service-icon{width:51px;height:51px;display:grid;place-items:center;border-radius:17px;background:#fce3f1;color:#c86699;margin-bottom:20px}.service.member .service-icon{background:#ebe6fc;color:#8670cd}.service h3{font-size:23px;margin:0 0 11px}.service p{font-size:13.5px;color:#768296;max-width:430px;margin:0 0 24px}.service .actions{margin-top:auto}.service-status{font-size:11px;color:#929aaa;margin-top:11px}
/* help */
.faq-section{background:#f3f3f9}.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.faq-grid details{background:#fff;border:1px solid #e8e5ef;border-radius:20px;padding:20px 22px}.faq-grid summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:14px;font-weight:750;color:#242c3d}.faq-grid summary::-webkit-details-marker{display:none}.faq-grid summary:after{content:"+";font-weight:400;font-size:22px;color:#967ad6}.faq-grid details[open] summary:after{content:"−"}.faq-grid p{font-size:13px;color:#768296;margin:13px 0 0}
/* footer and customer-service target */
.footer{background:linear-gradient(180deg,#f3f3f9,#efedf6);border-top:1px solid #e4e2ee;padding:38px 0 24px}.footer-top{display:flex;justify-content:space-between;align-items:start;gap:45px}.footer-brand img{width:174px;margin-bottom:17px}.footer-brand p{font-size:13px;color:#748094;max-width:415px;line-height:1.85}.footer-links{display:flex;gap:55px}.footer-links>div{display:flex;flex-direction:column;gap:12px}.footer-links b{font-size:13px;color:#283249}.footer-links a{font-size:12px;color:#738098}.footer-links a:hover{color:#15948d}.contact-note{color:#8490a1;font-size:12px;line-height:1.7;max-width:180px}.footer-bottom{margin-top:34px;padding-top:19px;border-top:1px solid #e0dce7;display:flex;justify-content:space-between;gap:14px;color:#8c96a6;font-size:11px;line-height:1.7}
@media(max-width:1050px){.nav{gap:16px}.links{gap:15px}.links a{font-size:12px}.hero-grid{gap:18px}.hero h1{font-size:clamp(38px,4.4vw,54px)}.router-grid{gap:30px}.router-art{width:95%}}
@media(max-width:820px){.wrap{width:min(calc(100% - 44px),var(--max))}.nav{height:74px}.brand img{width:145px}.links{display:none;position:absolute;top:74px;left:17px;right:17px;border:1px solid #e4e1ee;background:#fff;border-radius:18px;padding:12px;box-shadow:0 18px 40px rgba(45,41,74,.13);flex-direction:column;align-items:stretch;gap:0}.links.open{display:flex}.links a{padding:13px 14px;border-radius:10px;font-size:14px}.links a:hover{background:#f8f5fc}.contact-btn{margin-left:auto}.mobile-menu{display:flex}.hero{padding:46px 0 37px}.hero-grid{grid-template-columns:1fr;gap:10px;min-height:auto}.hero-art{max-width:600px;margin:15px auto 0}.hero-art img{width:72%;max-width:400px}.features{grid-template-columns:repeat(2,minmax(0,1fr))}.router-grid{grid-template-columns:1fr;gap:30px}.router-art{width:min(86%,480px)}.route-flow{gap:6px}.flow-step{font-size:11px}.section{padding:54px 0}}
@media(max-width:600px){.wrap{width:calc(100% - 34px)}.brand img{width:135px}.nav{gap:8px}.contact-btn{font-size:11px;padding:10px 13px}.mobile-menu{width:40px;height:40px}.hero{padding:34px 0 27px}.hero h1{font-size:clamp(34px,8.7vw,46px);margin:16px 0 17px}.hero-copy>p{font-size:14px;line-height:1.95;margin-bottom:22px}.hero-art{margin-top:12px;padding:0}.hero-art img{width:80%;max-width:340px}.btn{padding:12px 18px;min-height:45px;font-size:12.5px}.button-hint{font-size:10.5px}.section{padding:44px 0}.section h2{font-size:30px}.section-header{margin-bottom:26px}.features,.service-grid,.faq-grid{grid-template-columns:1fr}.feature{min-height:0;padding:24px}.service{min-height:0;padding:27px}.router-art{width:100%;max-width:450px;padding:7px}.router-art img{border-radius:16px}.router-copy>p{font-size:14px}.router-list{gap:15px}.route-flow{flex-direction:column;gap:8px}.flow-step{min-height:56px}.flow-arrow{font-size:18px;transform:rotate(90deg)}.workflow{padding:20px}.footer-top{flex-direction:column;gap:28px}.footer-links{width:100%;gap:40px}.footer-bottom{flex-direction:column}.footer-brand img{width:155px}}
@media(max-width:370px){.contact-btn{font-size:10px;padding:9px 10px}.brand img{width:116px}.actions,.router-actions{gap:8px}.btn{padding:11px 14px}.hero h1{font-size:33px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important}}

/* V4.2 round 2 — unified two-level product headings */
.section h2.product-title{font-size:clamp(38px,4.3vw,55px);line-height:1.17;letter-spacing:-.045em;margin:0 0 9px;font-weight:850;color:#1c2335}
.section p.product-subtitle{font-size:clamp(18px,1.8vw,24px);font-weight:650;line-height:1.45;letter-spacing:-.01em;color:#747b91;margin:0;max-width:680px}
.router-copy>p.product-subtitle{font-size:clamp(18px,1.8vw,24px);font-weight:650;line-height:1.45;color:#747b91;margin:0}
@media(max-width:600px){.section h2.product-title{font-size:37px}.section p.product-subtitle,.router-copy>p.product-subtitle{font-size:19px}.features{grid-template-columns:1fr}.feature{min-height:0}}

/* 大音铺官网定稿版：紧凑布局 + 标题层级 + Logo 标语 */
.brand-with-slogan{position:relative;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:0;flex-shrink:0}
.brand-with-slogan img{width:164px;height:auto}
.brand-slogan{display:block;position:relative;margin:-1px 0 0 48px;font-size:10px;line-height:1.2;font-weight:650;letter-spacing:.055em;color:#668c94;white-space:nowrap}
.hero-product-title{font-size:clamp(32px,3.6vw,46px);font-weight:850;line-height:1.18;letter-spacing:-.045em;color:#1c2335}
.hero h1{margin:13px 0 16px;font-size:clamp(38px,4.1vw,56px)}
.hero{padding:29px 0 18px}
.hero-grid{min-height:0;gap:26px}
.hero-art{padding:3px}
.hero-copy>p{margin-bottom:22px}
.section{padding:33px 0}
.section-header{margin-bottom:19px}
.section h2.section-kicker-heading{font-size:clamp(38px,4.3vw,55px);line-height:1.18;font-weight:850;letter-spacing:-.045em;color:#1c2335;margin:0 0 10px}
.section p.product-subtitle,.router-copy>p.product-subtitle{margin:0;color:#747b91}
.router-grid{gap:34px}
.workflow{margin-top:23px}
.footer{padding-top:27px;padding-bottom:20px}
@media(max-width:900px){
  .section{padding:30px 0}
  .hero{padding:27px 0 16px}
  .hero-grid{min-height:0;gap:14px}
  .brand-with-slogan img{width:145px}
  .brand-slogan{margin-left:38px;font-size:9px}
  .section h2.section-kicker-heading{font-size:clamp(34px,5vw,48px)}
}
@media(max-width:600px){
  .section{padding:28px 0}
  .hero{padding:23px 0 13px}
  .hero-grid{gap:5px}
  .hero-product-title{font-size:33px}
  .hero h1{font-size:clamp(33px,8.5vw,43px);margin:12px 0 14px}
  .section h2.section-kicker-heading{font-size:clamp(31px,8.5vw,39px);letter-spacing:-.04em}
  .section-header{margin-bottom:17px}
  .brand-with-slogan img{width:124px}
  .brand-slogan{font-size:8px;letter-spacing:0;margin-left:26px;margin-top:0}
  .router-grid{gap:18px}
  .workflow{margin-top:18px}
  .footer{padding-top:22px;padding-bottom:17px}
}
@media(max-width:370px){
  .brand-with-slogan img{width:116px}
  .brand-slogan{font-size:7.5px;margin-left:22px}
}
/* 公开官网优化：更清晰的可点击区域，避免小屏误触。 */
.contact-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px}
.mobile-menu{min-height:44px;min-width:44px}
.links a{display:flex;align-items:center;min-height:44px}
.faq-grid summary{min-height:44px}
.footer-links a{min-height:44px;display:flex;align-items:center}
.footer-contact-link{font-weight:700;color:#168b86!important}
[hidden]{display:none!important}
@media(max-width:370px){.contact-btn{font-size:11px;padding:9px 10px;min-height:44px}.mobile-menu{height:44px;width:44px}}

/* 官网定稿版 · 适度增加大板块间距：相对之前压缩版约 +15–20%，不动卡片内边距。 */
.hero{padding-top:35px;padding-bottom:23px}
.section{padding-top:40px;padding-bottom:40px}
@media(max-width:900px){
  .hero{padding-top:32px;padding-bottom:21px}
  .section{padding-top:36px;padding-bottom:36px}
}
@media(max-width:600px){
  .hero{padding-top:27px;padding-bottom:17px}
  .section{padding-top:33px;padding-bottom:33px}
}

/* 页脚微调：会员服务与代理合作同行，缩短尾部空白。 */
.footer-links.footer-nav-grid{
  display:grid;
  grid-template-columns:minmax(128px,auto) minmax(170px,190px);
  grid-auto-rows:auto;
  column-gap:52px;
  row-gap:0;
  align-items:start;
}
.footer-nav-grid>b{min-height:32px;display:flex;align-items:flex-start}
.footer-nav-grid>a{line-height:1.5}
.footer-nav-grid .footer-contact-slot{display:flex;flex-direction:column;justify-content:center;min-height:44px;gap:0;min-width:0}
.footer-nav-grid .contact-note{max-width:none;line-height:1.6}
.footer .footer-bottom{margin-top:14px;padding-top:14px}
.footer{padding-bottom:16px}
@media(max-width:820px){
  .footer-links.footer-nav-grid{column-gap:28px;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media(max-width:600px){
  .footer-links.footer-nav-grid{width:100%;column-gap:18px;row-gap:0;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .footer-top{gap:17px}
  .footer .footer-bottom{margin-top:12px;padding-top:12px}
}