:root{
  --bg:#E8F4F0;--deep:#C8E4DC;--paper:#F4FAF8;--soft:#DCEEE8;--ink:#16382E;--text:#245044;--muted:#4A7468;--quiet:#6A9488;--green:#2A8A72;--green2:#3AA88A;--gold:#C4A050;--line:rgba(22,56,46,.12);--line-strong:rgba(42,138,114,.48);--shadow:0 12px 28px rgba(22,56,46,.08);--radius:12px;--max:960px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
body.is-locked{overflow:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%;height:auto;object-fit:contain;object-position:center}
.skip-link{position:fixed;left:16px;top:-60px;z-index:200;background:var(--ink);color:var(--paper);padding:8px 12px;border-radius:8px}.skip-link:focus{top:8px}
.site-header{position:fixed;inset:0 0 auto;z-index:100}.top-strip{height:20px;background:var(--green);color:var(--paper);font-size:12px}.top-strip__inner,.brand-bar__inner,.dot-nav__inner{max-width:var(--max);height:100%;margin:auto;padding:0 16px;display:flex;align-items:center;justify-content:space-between}.text-button{border:0;background:transparent;color:var(--paper);min-height:20px;padding:0 4px}.brand-bar{height:54px;background:var(--paper);border-bottom:1px solid var(--line-strong)}.brand-link{display:flex;align-items:center;min-height:44px}.brand-link img,.footer-brand img,.drawer-brand img{height:24px;width:auto}.brand-fallback{font-size:16px;font-weight:800;color:var(--ink)}.brand-actions{display:flex;align-items:center;gap:8px}.app-link,.menu-button{height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;font-size:14px}.app-link{padding:0 14px;background:linear-gradient(135deg,var(--green),var(--green2));color:var(--paper);font-weight:700}.menu-button{gap:6px;padding:0 12px;background:var(--paper);border:1px solid var(--line-strong);color:var(--ink)}
.dot-nav{height:48px;background:var(--paper);border-bottom:1px solid var(--line)}.dot-nav__inner{justify-content:center;gap:54px}.dot-item{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:56px;height:48px;font-size:13px;color:var(--muted);transition:.2s}.dot-item--raised{transform:translateY(-4px)}.dot{width:10px;height:10px;border-radius:50%;background:var(--deep);border:2px solid var(--green);margin-bottom:2px}.dot-item.is-current{font-weight:800;color:var(--ink)}.dot-item.is-current .dot{width:14px;height:14px;background:var(--green)}
.site-main{padding-top:122px;min-height:70vh}.wrap{max-width:var(--max);margin:0 auto;padding:34px 16px}.narrow{max-width:760px}.eyebrow{margin:0 0 8px;color:var(--green);font-size:13px;font-weight:800;letter-spacing:.08em}.page-title,h1{margin:0 0 14px;color:var(--ink);font-size:24px;line-height:1.3}.lead{margin:0;color:var(--muted);font-size:16px}.section-title,h2{font-size:20px;line-height:1.35;color:var(--ink)}h3{font-size:16px;color:var(--ink)}p{margin:0 0 14px}.muted{color:var(--muted)}.quiet{color:var(--quiet)}.section{margin:28px 0}.panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}.soft-panel{background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.deep-panel{background:var(--green);color:var(--paper);border-radius:var(--radius);padding:22px}.deep-panel h2,.deep-panel h3,.deep-panel p,.deep-panel a{color:var(--paper)}.rule{height:1px;background:var(--line);margin:22px 0}.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{min-height:44px;padding:0 16px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}.btn-primary{background:linear-gradient(135deg,var(--green),var(--green2));color:var(--paper)}.btn-secondary{background:var(--paper);border:1px solid var(--green);color:var(--ink)}.btn:hover,.app-link:hover,.menu-button:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(196,160,80,.55);outline-offset:2px}
.media-slot{background:var(--paper);border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain}.slot-164{height:164px}.slot-200{height:200px}.slot-240{height:240px}.slot-300{height:300px}.slot-320{height:320px}.icon-slot{width:56px;height:56px;background:var(--paper);border:1px solid var(--line);border-radius:14px;display:flex;align-items:center;justify-content:center}.icon-slot img{width:48px;height:48px}
.hero-index{padding:34px 0 10px}.hero-index .lead{max-width:760px}.mini-dots{display:flex;gap:16px;margin:0 0 18px}.mini-dots span{width:10px;height:10px;border-radius:50%;background:var(--green)}.split-strip{display:grid;grid-template-columns:1fr 1fr;background:var(--paper);border:1px solid var(--line);border-radius:14px;overflow:hidden}.split-strip>div{padding:22px}.split-strip>div+div{border-left:1px solid var(--line)}.split-strip .media-slot{margin-top:12px}.vertical-log{display:grid;gap:0;border-left:2px solid var(--green);padding-left:22px}.log-item{position:relative;padding:0 0 26px 18px}.log-item:before{content:"";position:absolute;left:-29px;top:7px;width:10px;height:10px;border-radius:50%;background:var(--green);border:3px solid var(--bg)}.log-item:last-child{padding-bottom:0}.clip-pages{display:grid;grid-template-columns:1.08fr .92fr;gap:18px}.clip-card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:20px;min-height:180px}.shelf-intro{display:grid;grid-template-columns:180px 1fr;gap:18px;align-items:stretch}.shelf-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}.phase-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.phase-row article{background:var(--paper);border-top:4px solid var(--green);border-radius:10px;padding:18px}.status-list{display:grid;gap:10px}.status-item{display:grid;grid-template-columns:120px 1fr auto;gap:14px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px}.status-badge{font-size:13px;padding:4px 9px;border-radius:999px;background:var(--soft);color:var(--ink);white-space:nowrap}.app-split{display:grid;grid-template-columns:1fr 300px;gap:24px;align-items:center}.app-copy-head{display:flex;gap:12px;align-items:center;margin-bottom:12px}.key-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.key-list article{padding:16px;background:var(--paper);border:1px solid var(--line);border-radius:10px}.faq-mini{display:grid;gap:10px}.faq-mini details,.faq-list details{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px 16px}.faq-mini summary,.faq-list summary{font-weight:800;color:var(--ink);cursor:pointer}.faq-mini details p,.faq-list details p{margin:10px 0 0}
.page-head{margin-bottom:26px}.page-head--center{text-align:center}.page-head--center .lead{margin-inline:auto;max-width:720px}.two-open{display:grid;grid-template-columns:1fr 1fr;border-radius:14px;overflow:hidden;border:1px solid var(--line)}.two-open article{padding:22px;background:var(--paper)}.two-open article:nth-child(even){background:var(--soft)}.two-open article+article{border-left:1px solid var(--line)}.clip-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.clip-stack{display:grid;gap:14px}.clip-note{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:20px;position:relative}.clip-note:after{content:"";position:absolute;right:14px;top:-1px;width:34px;height:10px;border-radius:0 0 7px 7px;background:var(--gold);opacity:.35}.single-flow{max-width:760px;margin:auto}.single-flow section{padding:20px 0;border-bottom:1px solid var(--line)}.single-flow section:last-child{border-bottom:0}.memo-list{counter-reset:item;display:grid;gap:12px}.memo-list article{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:18px 18px 18px 58px;position:relative}.memo-list article:before{counter-increment:item;content:counter(item);position:absolute;left:18px;top:18px;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--green);color:var(--paper);font-weight:800}.method-steps{display:grid;gap:16px}.method-steps section{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}.topic-list{display:grid;gap:14px}.topic-list article{display:grid;grid-template-columns:170px 1fr auto;gap:16px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:18px}.topic-list a{color:var(--green);font-weight:800}.center-cards{display:grid;gap:16px;max-width:760px;margin:auto}.center-cards article{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:22px;text-align:center}.terms section{padding:18px 0;border-bottom:1px solid var(--line)}.terms section:last-child{border-bottom:0}.help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.help-grid article{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:18px}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.contact-grid article{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:20px}.about-banner{height:200px;background:var(--paper);border:1px solid var(--line);border-radius:14px;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-bottom:22px}.about-banner img{width:100%;height:100%;object-fit:contain}.brand-story{display:grid;grid-template-columns:1fr 260px;gap:22px;align-items:start}
.site-footer{background:var(--ink);color:var(--bg);font-size:13px;border-top:1px solid rgba(244,250,248,.35);padding-bottom:18px}.footer-inner{max-width:var(--max);margin:auto;padding:30px 16px}.footer-brand{display:flex;align-items:center;gap:12px;padding-bottom:18px;border-bottom:1px solid rgba(244,250,248,.18)}.footer-brand__logo{min-width:70px}.footer-brand span{display:block;color:#C8E4DC}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:22px 0}.footer-grid h2{font-size:14px;color:var(--paper);margin:0 0 8px}.footer-grid a{display:block;color:var(--bg);padding:3px 0}.footer-note{color:#C8E4DC;max-width:780px}.footer-copy{margin:16px 0 0;color:var(--bg)}
.page-overlay{position:fixed;inset:0;background:rgba(22,56,46,.45);z-index:125;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.page-overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}.site-drawer{position:fixed;z-index:140;left:0;top:20px;width:min(36vw,430px);max-height:calc(100vh - 40px);overflow:auto;background:var(--paper);border-radius:0 14px 14px 0;box-shadow:0 20px 48px rgba(22,56,46,.22);transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:.25s}.site-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:var(--paper);border-bottom:1px solid var(--line)}.drawer-brand{display:flex;align-items:center;gap:10px}.icon-button{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--paper);color:var(--ink);font-size:24px}.drawer-groups{padding:8px 16px 18px}.drawer-groups section{padding:12px 0;border-bottom:1px solid var(--line)}.drawer-groups section:last-child{border-bottom:0}.drawer-groups h2{font-size:14px;margin:0 0 6px}.drawer-groups a{display:block;padding:9px 0}.drawer-groups a strong{display:block;color:var(--ink)}.drawer-groups a span{display:block;color:var(--muted);font-size:13px}
.search-panel{position:fixed;z-index:145;top:74px;left:50%;width:min(720px,calc(100% - 32px));transform:translate(-50%,-18px);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-panel.is-open{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto}.search-card{background:var(--paper);border:1px solid var(--line-strong);border-radius:14px;box-shadow:0 20px 48px rgba(22,56,46,.18);padding:18px}.search-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.search-head strong{font-size:18px;color:var(--ink)}.search-head p{margin:3px 0 0;color:var(--muted)}.search-label{display:block;margin:12px 0 6px;color:var(--ink);font-weight:700}.search-input{width:100%;height:44px;border:1px solid var(--line-strong);border-radius:10px;background:#fff;color:var(--ink);padding:0 12px}.search-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-links a{min-height:44px;padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:var(--soft);color:var(--ink)}.mobile-bottom{display:none}
@media(max-width:760px){
  .dot-nav{display:none}.site-main{padding-top:74px;padding-bottom:64px}.wrap{padding:26px 16px}.top-strip__inner,.brand-bar__inner{padding:0 16px}.brand-actions{gap:6px}.app-link{padding:0 10px}.menu-button{width:44px;padding:0}.menu-button span:last-child{display:none}.site-drawer{top:20px;width:min(86vw,380px);max-height:calc(100vh - 40px)}.search-panel{inset:0;width:100%;height:100dvh;transform:none;background:var(--green);padding:74px 16px 64px;overflow:auto}.search-panel.is-open{transform:none}.search-card{background:transparent;border:0;box-shadow:none;padding:0;color:var(--paper)}.search-head strong,.search-head p,.search-label{color:var(--paper)}.search-head .icon-button{background:transparent;color:var(--paper);border-color:rgba(244,250,248,.45)}.search-input{background:var(--paper)}.search-links a{background:rgba(244,250,248,.12);border-color:rgba(244,250,248,.35);color:var(--paper)}.mobile-bottom{position:fixed;z-index:110;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(4,1fr);height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--paper);border-top:1px solid var(--line)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px;min-height:48px;color:var(--ink)}.mobile-bottom a.is-current{background:var(--green);color:var(--paper);font-weight:800}.split-strip,.clip-pages,.shelf-intro,.app-split,.two-open,.clip-layout,.brand-story{grid-template-columns:1fr}.split-strip>div+div,.two-open article+article{border-left:0;border-top:1px solid var(--line)}.shelf-cards,.phase-row,.key-list,.help-grid,.contact-grid{grid-template-columns:1fr}.status-item{grid-template-columns:1fr}.method-steps section{grid-template-columns:1fr;gap:4px}.topic-list article{grid-template-columns:1fr}.app-split .media-slot{max-width:300px;margin:auto;width:100%}.footer-grid{grid-template-columns:repeat(2,1fr)}.about-banner{height:200px}.slot-320{height:300px}
}
@media(max-width:420px){.top-strip__inner span{font-size:11px}.footer-grid{grid-template-columns:1fr 1fr}.panel,.soft-panel,.deep-panel{padding:18px}.clip-card{padding:18px}}

.space-top-12{margin-top:12px}.space-top-14{margin-top:14px}.eyebrow-light{color:#E8F4F0}.centered-media{max-width:760px;margin:0 auto 18px}.btn-row-center{justify-content:center}.center-panel{max-width:760px;margin-left:auto;margin-right:auto}