:root{--bg-deep:#071d22;--bg-main:#0c2b31;--bg-surface:#12383d;--mint:#48c9ba;--paper:#f4f9f7;--cream:#fffcf6;--ink:#17343a;--copy:#355159;--edge:#d8e9e5;--coral:#e8907e;--blue:#87acc6}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,-apple-system,"Microsoft YaHei",sans-serif;font-size:16px;line-height:1.78}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}button,input{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--coral);outline-offset:3px}.wrap{width:min(1240px,calc(100% - 64px));margin:auto}.sr{position:absolute;clip:rect(0,0,0,0);overflow:hidden;width:1px;height:1px}.topline{background:var(--bg-deep);color:#d5e7e4;font-size:12px}.topline .wrap{height:29px;display:flex;justify-content:space-between;align-items:center}.topline a{margin-left:22px}.brandbar{position:sticky;top:0;z-index:40;background:var(--cream);border-bottom:1px solid var(--edge);box-shadow:0 3px 18px #001a1f12}.brandrow{height:74px;display:flex;align-items:center;gap:30px}.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:24px;white-space:nowrap}.brand small{display:block;font-size:10px;font-weight:700;letter-spacing:.19em;line-height:1.2;color:#46706f}.brand-img{max-width:90px;height:45px;object-fit:contain}.searchbar{display:flex;flex:1;max-width:390px;margin:auto;background:#eef5f3;border-radius:11px;border:1px solid var(--edge);overflow:hidden}.searchbar input{width:100%;min-width:0;background:transparent;border:0;padding:10px 14px;outline:none}.searchbar button{border:0;background:#0c7778;color:white;padding:9px 17px}.header-actions{display:flex;align-items:center;gap:16px;font-size:14px;font-weight:650}.menu-trigger,.menu-close{background:var(--bg-main);color:white;border:0;padding:10px 13px;border-radius:9px}.channel-nav{background:#e9f3f0;border-bottom:1px solid var(--edge)}.navrow{display:flex;gap:40px;min-height:54px;align-items:center}.navgroup{display:flex;align-items:center;gap:20px;white-space:nowrap;font-size:14px}.navgroup strong{color:#0c7778;font-size:12px;letter-spacing:.08em}.navgroup a{padding:13px 0 10px;border-bottom:3px solid transparent}.navgroup a.active{border-color:#0c7778;color:#075457;font-weight:bold}.mobile-channels{display:none}.drawer-backdrop{position:fixed;inset:0;background:#071d229e;z-index:65}.drawer{position:fixed;top:0;right:0;height:100dvh;overflow-y:auto;width:min(380px,88vw);padding:23px;background:var(--cream);z-index:66;transform:translateX(100%);transition:transform .22s;visibility:hidden;pointer-events:none;box-shadow:0 0 30px #0003}.drawer.open{transform:none;visibility:visible;pointer-events:auto}.drawer-head{display:flex;justify-content:space-between;align-items:center}.drawer section{border-bottom:1px solid var(--edge);padding:10px 0}.drawer h3{color:#0c7778;font-size:15px}.drawer section a{display:block;padding:7px 0;font-weight:700}.drawer section small{display:block;color:#526c72;font-size:12px;font-weight:400;line-height:1.4}.hero{background:var(--bg-main);color:#f7fcfa;padding:54px 0}.hero-grid{display:grid;grid-template-columns:44% 56%;align-items:center;min-height:360px}.eyebrow{display:block;letter-spacing:.08em;font-size:12px;font-weight:750;color:#0c7778}.hero .eyebrow,.dark .eyebrow{color:#92e6db}.hero h1{font-size:clamp(31px,4vw,40px);line-height:1.25;margin:12px 0}.hero h2{font-size:23px;font-weight:500;line-height:1.4}.hero p{color:#d5e7e4;max-width:510px}.hero-media,.media{border-radius:18px;overflow:hidden;background:linear-gradient(135deg,#1b474b,#0c7778 58%,#286363);min-height:230px;display:flex;align-items:center;justify-content:center;padding:14px}.hero-media{min-height:310px;margin-left:34px}.media img,.hero-media img{display:block;width:100%;height:auto;max-height:320px;object-fit:contain}.media:empty:before,.hero-media:empty:before{content:"";width:65%;height:65%;border:1px solid #d2fff553;border-radius:60% 25% 50% 20%;background:linear-gradient(145deg,#d2fff51c,transparent)}.btn{display:inline-block;background:var(--mint);color:#06292c;border-radius:10px;padding:10px 20px;font-weight:750;margin-right:9px;margin-top:12px}.btn.secondary{background:transparent;color:white;border:1px solid #9bdcd4}.block{padding:56px 0}.block:nth-of-type(even){background:#fffdfa}.dark{background:var(--bg-main)!important;color:#f7fcfa}.dark p{color:#d5e7e4}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}.section-head h2{font-size:27px;line-height:1.3;margin:6px 0}.section-head p{max-width:820px;color:var(--copy);margin:0}.dark .section-head p{color:#d5e7e4}.section-head>a{white-space:nowrap;font-weight:700;color:#0c7778}.dark .section-head>a{color:#96f0e3}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.story,.panel,.mini{background:#fff;border:1px solid var(--edge);border-radius:14px;padding:24px;min-width:0}.story{display:flex;flex-direction:column;min-height:205px;transition:transform .2s}.story:hover{transform:translateY(-3px);text-decoration:none}.story h3{font-size:19px;line-height:1.45;margin:8px 0}.story p{color:var(--copy);font-size:14px;margin:2px 0 15px}.read-more{margin-top:auto;color:#0c7778;font-size:13px;font-weight:750}.split{display:grid;grid-template-columns:7fr 5fr;gap:26px;align-items:stretch}.split.half{grid-template-columns:1fr 1fr}.split>*{min-width:0}.feature{padding:27px;border-radius:16px;background:#fff;border:1px solid var(--edge)}.feature h3{font-size:23px;line-height:1.4;margin:10px 0}.feature p{color:var(--copy)}.feature .media{margin-bottom:20px}.dark .feature{background:var(--bg-surface);border-color:#2d585b}.dark .feature p{color:#d5e7e4}.linklist{display:grid;gap:12px}.linkline{display:block;border-bottom:1px solid var(--edge);padding:10px 0;font-weight:650}.dark .linkline{border-color:#376065}.tag{font-size:12px;letter-spacing:.06em;color:#0c7778;font-weight:700}.dark .tag{color:#92e6db}.breadcrumb{font-size:13px;padding:24px 0;color:#526c72}.page-intro{padding:0 0 34px}.page-intro h1{font-size:36px;line-height:1.24;margin:7px 0 14px}.page-intro p{max-width:850px;font-size:17px;color:var(--copy)}.page-lead{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:center}.page-lead .media{min-height:250px}.article-layout{display:grid;grid-template-columns:minmax(0,770px) 1fr;gap:44px;align-items:start}.article{background:white;border-radius:15px;padding:34px;border:1px solid var(--edge)}.article h1{font-size:36px;line-height:1.3}.article p{color:#355159;font-size:16px;line-height:1.9;margin:18px 0}.article h2{font-size:23px;margin-top:35px}.article .meta{font-size:13px;color:#526c72}.aside{position:sticky;top:100px}.room-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(300px,1fr);gap:24px}.player{background:#071d22;color:#f7fcfa;border-radius:16px;min-height:330px;padding:32px;display:flex;flex-direction:column;justify-content:center}.player video{width:100%;height:auto;max-height:460px}.player h2{color:#e6f6f2}.chat-box{height:280px;overflow-y:auto;border:1px solid var(--edge);background:white;border-radius:12px;padding:14px}.chat-msg{border-bottom:1px solid var(--edge);padding:8px 0;font-size:14px}.chat-form{display:flex;gap:8px;margin-top:11px}.chat-form input{min-width:0;flex:1;padding:11px;border:1px solid #abc9c2;border-radius:8px}.chat-form button{padding:8px 15px;background:#0c7778;color:white;border:0;border-radius:8px}.chat-note{color:#526c72;font-size:13px}.footgrid{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:28px;padding:56px 0 38px}.footer{background:var(--bg-deep);color:#f7fcfa}.footer h2{margin:0}.footer h2 small{display:block;font-size:10px;letter-spacing:.15em;color:#bcebe4}.footer p,.footnote{color:#d5e7e4;font-size:14px}.footer h3{font-size:15px;border-bottom:1px solid #2f6260;padding-bottom:10px}.footer a{display:block;color:#d5e7e4;font-size:13px;margin:7px 0}.footnote{border-top:1px solid #2f6260;padding:20px 0}.bottom-nav{display:none}.notice{padding:16px;border:1px solid var(--edge);border-radius:12px;background:#e9f4f1;color:#17343a}.pagination{padding:20px 0;display:flex;gap:10px}.pagination a,.pagination strong{border:1px solid var(--edge);border-radius:7px;padding:5px 13px}.faq details{background:white;margin:12px 0;border-radius:10px;padding:17px;border:1px solid var(--edge)}.faq summary{font-weight:750;cursor:pointer}.faq p{color:var(--copy)}.steps{counter-reset:item;display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.steps>div{background:white;border:1px solid var(--edge);border-radius:12px;padding:20px}.steps>div:before{counter-increment:item;content:'0' counter(item);display:block;color:#0c7778;font-weight:800;font-size:20px}.two-links{display:grid;grid-template-columns:1.3fr 1fr;gap:18px}.two-links a{display:block;padding:26px;border-radius:15px;background:#e4f3ef}.two-links a:nth-child(2){background:#d9eaf1}.two-links h3{margin-top:0}.listing{display:grid;gap:14px}.listing a{display:block;background:white;border:1px solid var(--edge);padding:18px;border-radius:12px}.listing a:hover{border-color:#0c7778}.listing p{color:var(--copy);margin:5px 0}.small{font-size:13px;color:#526c72}
@media(max-width:1100px){.wrap{width:calc(100% - 44px)}.navrow{gap:22px}.navgroup{gap:12px}.header-actions .action-link{display:none}.footgrid{grid-template-columns:repeat(3,1fr)}.footgrid>div:first-child{grid-column:span 3}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){body{padding-bottom:calc(60px + env(safe-area-inset-bottom))}.wrap{width:calc(100% - 32px)}.topline,.channel-nav,.action-link{display:none!important}.brandrow{height:62px;gap:10px}.brand{font-size:20px}.brand-img{max-width:52px;height:35px}.brand small{font-size:8px}.searchbar{max-width:none;flex:1;margin:0}.searchbar input{padding:9px;width:100%;font-size:12px}.searchbar button{padding:8px;font-size:12px}.header-actions{gap:0}.menu-trigger{min-width:44px;padding:8px;font-size:0}.menu-trigger:after{content:'☰';font-size:21px}.mobile-channels{display:flex;height:43px;gap:23px;overflow-x:auto;white-space:nowrap;background:#e9f3f0;padding:7px 16px;align-items:center;font-size:14px}.mobile-channels a{flex-shrink:0}.hero{padding:28px 0}.hero-grid,.split,.split.half,.page-lead,.article-layout,.room-grid,.two-links{grid-template-columns:1fr}.hero-grid{min-height:0}.hero-media{min-height:185px;max-height:270px;margin:25px 0 0}.hero h1,.page-intro h1,.article h1{font-size:29px}.hero h2{font-size:20px}.hero-media img{max-height:245px}.block{padding:35px 0}.section-head{display:block}.section-head h2{font-size:22px}.section-head>a{display:inline-block;margin-top:10px}.cards{grid-template-columns:1fr}.story{min-height:0}.steps{grid-template-columns:repeat(2,minmax(0,1fr))}.article{padding:20px}.aside{position:static}.footgrid{grid-template-columns:repeat(2,1fr);gap:20px;padding:38px 0}.footgrid>div:first-child{grid-column:span 2}.bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:45;background:#fffcf6;border-top:1px solid var(--edge);height:calc(58px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);align-items:center;justify-content:space-around}.bottom-nav a{flex:1;text-align:center;color:#17343a;font-weight:700;font-size:14px}.drawer{z-index:70}.drawer-backdrop{z-index:69}.room-grid{gap:12px}.player{min-height:230px;padding:22px}}
@media(max-width:365px){.brand{font-size:17px}.brand small{font-size:7px}.searchbar input{width:60px}.steps{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.drawer,.story{transition:none}}