:root{--bg:#E7F4F8;--deep:#D7ECF2;--paper:#F3FAFC;--soft:#EAF6F9;--title:#163038;--text:#1F3C44;--muted:#4A6E78;--aux:#6A8C96;--blue:#7EB8E0;--cyan:#6EC9D4;--bay:#1A3A44;--white:#F3FAFC;--green:#5A8A6A;--line:rgba(26,58,68,.14);--focus:rgba(110,201,212,.50);--shadow:0 12px 28px rgba(22,48,56,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block;object-fit:contain;object-position:center}.wrap{width:min(1000px,calc(100% - 32px));margin-inline:auto}.site-top{position:fixed;left:0;right:0;top:0;z-index:50}.top-note{height:20px;background:var(--bay);color:var(--white);font-size:12px}.top-note-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.top-search{height:20px;border:0;background:transparent;color:var(--white);padding:0 4px;cursor:pointer}.brand-row{height:54px;background:var(--blue);border-bottom:1px solid var(--cyan)}.brand-inner{height:54px;display:flex;align-items:center;justify-content:space-between}.brand-link{display:flex;align-items:center;min-height:44px}.brand-logo,.footer-logo,.panel-logo{height:24px;width:auto;max-width:190px}.brand-actions{display:flex;gap:8px;align-items:center}.app-link,.menu-button{height:44px;display:inline-flex;align-items:center;padding:0 14px;border-radius:9px;border:1px solid rgba(26,58,68,.24);background:var(--paper);color:var(--bay);font-weight:700;white-space:nowrap}.menu-button{cursor:pointer}.primary-nav{height:44px;background:var(--paper);border-bottom:1px solid var(--line)}.primary-inner{height:44px;display:flex;justify-content:center;gap:58px}.nav-item{height:44px;min-width:86px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:13px;color:var(--muted)}.nav-item i{width:6px;height:6px;border-radius:50%;background:var(--cyan)}.nav-item.current{color:var(--bay);font-weight:800}.nav-item.current i{background:var(--bay)}.site-main{padding-top:118px}.page-shell{padding:38px 0 68px}.eyebrow{font-size:12px;color:var(--green);font-weight:800;letter-spacing:.08em;text-transform:uppercase}.lead-intro{border-left:3px solid var(--cyan);padding:8px 0 8px 20px;margin-bottom:28px}.lead-intro h1{font-size:24px;line-height:1.3;color:var(--title);margin:6px 0 10px}.lead-intro .lead{font-size:18px;color:var(--bay);font-weight:800;margin:0 0 8px}.lead-intro p{margin:0;max-width:800px}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{height:42px;display:inline-flex;align-items:center;padding:0 18px;border-radius:9px;font-size:14px;font-weight:800}.btn.primary{background:linear-gradient(135deg,#7EB8E0 0%,#6EC9D4 100%);color:var(--title)}.btn.secondary{background:var(--paper);border:1px solid var(--bay);color:var(--bay)}.section{margin:34px 0}.section-title{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}.section-title h2{font-size:20px;color:var(--title);margin:0}.section-title p{margin:0;color:var(--muted);font-size:13px}.media-slot{width:100%;height:188px;background:var(--deep);border:1px solid var(--line);border-radius:11px;display:grid;place-items:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain}.banner-slot{height:200px}.app-slot{height:300px}.feature-stack{display:grid;gap:16px}.feature-block{background:var(--paper);border:1px solid var(--line);border-radius:11px;padding:20px}.feature-block h2,.feature-block h3{color:var(--title);margin:0 0 8px}.feature-block p{margin:0 0 10px}.feature-block p:last-child{margin-bottom:0}.split-note{display:grid;grid-template-columns:1fr 1fr;gap:18px}.split-note>article{background:var(--paper);border:1px solid var(--line);border-radius:11px;padding:20px}.story-flow{display:grid;gap:22px}.story-unit{background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden}.story-copy{padding:20px}.story-copy h2,.story-copy h3{margin:0 0 8px;color:var(--title)}.story-copy p{margin:0}.note-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.note-card{background:var(--soft);border-top:4px solid var(--cyan);border-radius:10px;padding:18px;min-height:230px}.note-card h3{margin:0 0 10px;color:var(--title)}.note-card p{margin:0}.center-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:820px;margin-inline:auto}.center-card{text-align:center;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:22px}.center-card h3{margin:0 0 8px;color:var(--title)}.phase-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.phase-card{background:var(--soft);border:1px solid var(--focus);border-radius:10px;padding:18px}.phase-card h3{margin:0 0 8px;color:var(--title)}.status-list{display:grid;gap:10px}.status-row{display:grid;grid-template-columns:140px 1fr;gap:16px;align-items:center;background:var(--paper);border:1px solid var(--line);padding:14px 16px;border-radius:10px}.status{width:max-content;padding:4px 10px;border-radius:999px;background:var(--deep);color:var(--bay);font-weight:800}.article-flow{max-width:840px}.article-flow>section{padding:0 0 22px;margin:0 0 24px;border-bottom:1px solid var(--line)}.article-flow>section:last-child{border-bottom:0}.article-flow h2{font-size:20px;margin:0 0 9px;color:var(--title)}.article-flow h3{font-size:16px;margin:14px 0 6px;color:var(--title)}.article-flow p{margin:0 0 10px}.memo-list{display:grid;gap:14px}.memo{background:var(--paper);border-left:4px solid var(--cyan);border-radius:0 10px 10px 0;padding:18px}.memo h2,.memo h3{margin:0 0 8px;color:var(--title)}.guide-steps{counter-reset:steps;display:grid;gap:16px}.guide-step{position:relative;padding:18px 18px 18px 64px;background:var(--paper);border:1px solid var(--line);border-radius:12px}.guide-step:before{counter-increment:steps;content:counter(steps);position:absolute;left:18px;top:18px;width:30px;height:30px;border-radius:50%;background:var(--cyan);display:grid;place-items:center;font-weight:900;color:var(--bay)}.guide-step h2,.guide-step h3{margin:0 0 6px;color:var(--title)}.topic-list{display:grid;gap:14px}.topic-row{background:linear-gradient(90deg,var(--paper),var(--soft));border:1px solid var(--line);border-radius:10px;padding:18px 20px}.topic-row h2,.topic-row h3{margin:0 0 6px;color:var(--title)}.product-band{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:24px;background:var(--bay);color:var(--white);border-radius:12px;padding:24px;align-items:center}.product-band h2,.product-band h3{color:var(--white);margin-top:0}.product-band p{color:#DDF0F4}.product-band .app-slot{background:#244A55;border-color:rgba(243,250,252,.18)}.icon-line{display:flex;gap:14px;align-items:center;margin-bottom:12px}.icon-slot{width:48px;height:48px;flex:0 0 48px;background:var(--paper);border-radius:12px;display:grid;place-items:center;overflow:hidden}.icon-slot img{width:48px;height:48px}.legal-grid{display:grid;gap:18px}.legal-card{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:20px}.legal-card h2{margin:0 0 8px;color:var(--title)}.faq-list{display:grid;gap:12px}.faq-item{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:18px}.faq-item h2{font-size:17px;margin:0 0 8px;color:var(--title)}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.contact-box{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:20px}.contact-box h2{margin:0 0 8px;color:var(--title)}.about-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:22px}.about-mark{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:18px}.site-footer{background:#143038;color:#E7F4F8;border-top:1px solid var(--cyan);font-size:13px;padding:34px 0 calc(28px + env(safe-area-inset-bottom))}.footer-layout{display:grid;grid-template-columns:1.15fr 2fr;gap:34px}.footer-brand-line{display:flex;align-items:center;gap:10px;margin-bottom:12px}.footer-brand-line strong{font-size:16px}.footer-brand-line span{color:#A8C8D0}.footer-brand p{color:#CBE0E5;margin:0}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-links section{display:flex;flex-direction:column;gap:6px}.footer-links h2{font-size:13px;margin:0 0 6px;color:#F3FAFC}.footer-links a{color:#D6E9ED}.footer-bottom{margin-top:28px;padding-top:18px;border-top:1px solid rgba(110,201,212,.28);color:#BCD5DB}.overlay{position:fixed;inset:0;background:rgba(20,48,56,.34);z-index:70;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.open{opacity:1;visibility:visible;pointer-events:auto}.category-panel{position:fixed;z-index:80;top:0;left:0;right:0;height:58vh;background:var(--paper);transform:translateY(-104%);visibility:hidden;pointer-events:none;transition:.24s;box-shadow:0 18px 60px rgba(20,48,56,.22);overflow:auto}.category-panel.open{transform:translateY(0);visibility:visible;pointer-events:auto}.panel-head{position:sticky;top:0;height:62px;background:var(--paper);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100vw - 1000px)/2));z-index:2}.panel-brand{display:flex;align-items:center;gap:9px}.panel-head button,.search-head button{min-width:64px;min-height:44px;border:1px solid var(--bay);background:var(--white);color:var(--bay);border-radius:9px;cursor:pointer}.panel-grid{padding:18px 0 30px;display:grid;grid-template-columns:1.1fr 1.1fr .9fr 1fr;gap:18px}.panel-grid section{display:grid;align-content:start;gap:8px}.panel-grid h2{font-size:13px;margin:0 0 4px;color:var(--muted)}.panel-grid a{display:block;padding:8px 10px;border-radius:8px}.panel-grid a:hover{background:var(--soft)}.panel-grid b{display:block;color:var(--title)}.panel-grid span{display:block;font-size:12px;color:var(--muted);line-height:1.5}.search-layer{position:fixed;left:0;right:0;top:74px;z-index:85;visibility:hidden;pointer-events:none}.search-layer.open{visibility:visible;pointer-events:auto}.search-card{width:min(760px,calc(100% - 32px));margin:auto;background:var(--paper);border:1px solid var(--line);border-radius:0 0 12px 12px;box-shadow:var(--shadow);padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between;gap:18px}.search-links{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 10px}.search-links a{min-height:44px;display:inline-flex;align-items:center;padding:0 15px;border:1px solid var(--line);background:var(--soft);border-radius:9px}.search-card p{margin:0;color:var(--muted)}.mobile-bottom{display:none}a:hover{opacity:.9}a:focus-visible,button:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
@media(max-width:760px){.primary-nav{display:none}.site-main{padding-top:74px;padding-bottom:58px}.page-shell{padding-top:26px}.brand-actions{gap:6px}.app-link,.menu-button{padding:0 10px}.split-note,.note-columns,.center-cards,.phase-grid,.contact-grid,.about-grid{grid-template-columns:1fr}.status-row{grid-template-columns:1fr}.product-band{grid-template-columns:1fr}.product-band .app-slot{height:280px}.footer-layout{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:78px}.panel-grid{grid-template-columns:1fr 1fr}.search-layer{top:0;bottom:0;background:var(--bay)}.search-card{width:100%;height:100%;border-radius:0;background:var(--bay);color:var(--white);padding:calc(24px + env(safe-area-inset-top)) 16px 24px}.search-head strong{color:var(--white)}.search-head button{background:transparent;border-color:var(--white);color:var(--white)}.search-links a{background:#224650;border-color:rgba(243,250,252,.18);color:var(--white)}.search-card p{color:#D6E9ED}.mobile-bottom{position:fixed;z-index:60;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--paper);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr)}.mobile-bottom a{height:48px;display:grid;place-items:center;font-size:13px}.mobile-bottom a.current{background:var(--cyan);color:var(--bay);font-weight:800}.banner-slot{height:200px}}
@media(max-width:480px){.footer-links,.panel-grid{grid-template-columns:1fr}.brand-actions .app-link{display:none}.product-band{padding:20px}.lead-intro{padding-left:14px}}