:root{--blue:#1677EE;--bright:#3395FF;--deep:#0A315E;--footer:#071D37;--ink:#16243A;--body:#3C485A;--muted:#6B7787;--ice:#F7FAFF;--pale:#EDF5FF;--soft:#E5F1FF;--line:rgba(22,119,238,.12);--shadow:0 12px 34px rgba(30,72,120,.08);--max:1320px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--body);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.72;overflow-x:hidden}img{max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.skip{position:fixed;top:-60px;left:12px;z-index:500;background:#fff;padding:10px 14px;border-radius:10px;box-shadow:var(--shadow)}.skip:focus{top:12px}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(7,49,94,.07)}.top-wrap{height:74px;width:min(calc(100% - 48px),var(--max));margin:auto;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:22px}.brand{display:flex;align-items:center;gap:10px;min-height:48px;padding:6px 14px 6px 7px;border-radius:999px;border:1px solid var(--line);color:var(--ink)}.logo-slot,.mobile-logo,.footer-logo{display:grid;place-items:center;overflow:hidden;background:linear-gradient(145deg,#fff,#edf5ff);border:1px solid var(--line)}.logo-slot{width:40px;height:40px;border-radius:13px}.logo-slot img,.mobile-logo img,.footer-logo img{width:100%;height:100%;object-fit:contain}.main-nav{display:flex;justify-content:center;gap:3px}.main-nav a,.actions a,.actions button{min-height:44px;display:flex;align-items:center;justify-content:center;padding:0 11px;border-radius:14px;border:0;background:#fff;color:#425169;white-space:nowrap}.main-nav a:hover,.main-nav a.on,.actions a:hover{background:var(--pale);color:var(--blue)}.actions{display:flex;align-items:center;gap:4px}.actions button{border:1px solid var(--line);cursor:pointer}.blue{background:linear-gradient(135deg,#3998FF,#1677EE 55%,#075FC6)!important;color:#fff!important;border:0!important}.mobile{display:none;height:62px;align-items:center;justify-content:space-between;padding:0 14px}.mobile button{border:0;background:transparent;color:var(--deep);min-height:44px}.mobile-logo{width:42px;height:34px;border-radius:11px}.overlay,.drawer,.search{position:fixed;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.overlay{inset:0;z-index:240;background:rgba(5,23,43,.46)}.drawer{z-index:300;top:0;left:0;right:0;max-height:88vh;overflow:auto;background:#fff;border-radius:0 0 30px 30px;box-shadow:0 24px 80px rgba(0,0,0,.15)}.search{z-index:300;top:90px;left:50%;transform:translateX(-50%);width:min(760px,calc(100% - 32px));padding:26px;background:#fff;border-radius:26px;box-shadow:0 24px 80px rgba(0,0,0,.15)}.overlay.open,.drawer.open,.search.open{visibility:visible;pointer-events:auto;opacity:1}.locked{overflow:hidden}.drawer-head{height:76px;width:min(calc(100% - 48px),var(--max));margin:auto;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.drawer-head button,.search-head button{border:0;background:var(--pale);min-height:44px;border-radius:14px;padding:0 14px}.drawer-brand,.footer-brand{display:flex;align-items:center;gap:11px;color:var(--ink)}.drawer-brand span:last-child,.footer-brand span:last-child{display:flex;flex-direction:column}.drawer-brand small,.footer-brand small{font-size:11px;letter-spacing:.14em;color:var(--muted)}.drawer-grid{width:min(calc(100% - 48px),1180px);margin:auto;padding:28px 0 38px;display:grid;grid-template-columns:repeat(5,1fr);gap:28px}.drawer-grid section{display:flex;flex-direction:column;gap:7px}.drawer-grid h2{font-size:15px;color:var(--ink);margin:0 0 7px}.drawer-grid a{min-height:38px;display:flex;align-items:center;padding:0 8px;border-radius:10px;font-size:14px}.drawer-grid a:hover{background:var(--pale);color:var(--blue)}.search-head{display:flex;align-items:center;justify-content:space-between;color:var(--ink);font-size:19px}.search label{display:block;margin:18px 0 7px;color:var(--muted);font-size:14px}.search form>div{display:grid;grid-template-columns:1fr auto;gap:8px}.search input{min-width:0;height:48px;border:1px solid var(--line);border-radius:14px;padding:0 13px}.search form button{border:0;border-radius:14px;padding:0 18px}.bottom{display:none}.footer{background:var(--footer);color:#DCEEFF;border-top:1px solid rgba(255,255,255,.1)}.footer-wrap{width:min(calc(100% - 48px),var(--max));margin:auto;padding:46px 0 36px;display:grid;grid-template-columns:1.15fr 2fr;gap:64px}.footer-brand{color:#fff}.footer-logo{width:46px;height:46px;border-radius:14px;background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.12)}.footer p{max-width:480px;color:#bad3ed;font-size:14px}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-links section{display:flex;flex-direction:column;gap:8px}.footer-links h2{font-size:14px;color:#fff;margin:0 0 8px}.footer-links a{font-size:13px;color:#bed7f0}.copyright{width:min(calc(100% - 48px),var(--max));min-height:72px;margin:auto;border-top:1px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:#9ebbd8}.wrap{width:min(calc(100% - 48px),var(--max));margin:auto}.section{padding:72px 0}.soft{background:var(--ice)}.pale{background:var(--pale)}.deep{background:var(--deep);color:#DCEEFF}.deep h2,.deep h3{color:#fff}.eyebrow{margin:0 0 9px;color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.12em}.deep .eyebrow{color:#9bd0ff}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:28px}.section-head h2{font-size:32px;line-height:1.2;color:var(--ink);margin:0}.section-head p{max-width:600px;color:var(--muted);margin:0}.page-hero{padding:64px 0 42px;background:linear-gradient(180deg,#f2f8ff,#fff)}.page-hero>div{width:min(calc(100% - 48px),1180px);margin:auto}.page-hero h1{font-size:clamp(36px,4.4vw,46px);line-height:1.15;color:var(--ink);max-width:900px;margin:8px 0 16px}.page-hero p{max-width:820px;font-size:17px;margin:0;color:#536278}.page-kicker{font-weight:800;color:var(--blue);font-size:14px}.prose{width:min(calc(100% - 48px),820px);margin:auto}.prose h2{color:var(--ink);font-size:27px;line-height:1.25;margin:42px 0 14px}.prose p{font-size:16px;margin:0 0 17px}.hero-home{padding:24px 0 44px}.hero-banner{position:relative;width:min(calc(100% - 48px),var(--max));margin:auto;aspect-ratio:16/7;max-height:520px;min-height:280px;border-radius:30px;overflow:hidden;background:linear-gradient(135deg,#e8f3ff,#b9dcff 48%,#fff);border:1px solid var(--line);box-shadow:0 14px 40px rgba(22,119,238,.14)}.hero-banner img{width:100%;height:100%;object-fit:contain}.hero-copy{position:absolute;left:34px;bottom:32px;width:min(540px,calc(100% - 68px));padding:22px 24px;border-radius:20px;background:rgba(7,29,55,.84);color:#DCEEFF}.hero-copy h1{margin:0 0 10px;color:#fff;font-size:clamp(42px,4.4vw,56px);line-height:1.05}.hero-copy p{margin:0}.gates{width:min(calc(100% - 48px),var(--max));margin:18px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.gates a{min-height:90px;padding:17px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 24px rgba(30,72,120,.05);display:flex;flex-direction:column;justify-content:center}.gates strong{color:var(--ink);font-size:17px}.gates span{color:var(--muted);font-size:13px}.editorial{display:grid;grid-template-columns:1.3fr .85fr .85fr;gap:15px}.panel{padding:24px;border-radius:24px;background:#fff;border:1px solid var(--line)}.panel.lead{grid-row:span 2;background:var(--deep);color:#DCEEFF}.panel h3{font-size:21px;line-height:1.35;margin:0 0 9px;color:var(--ink)}.panel.lead h3{color:#fff;font-size:28px}.city-feature,.app-feature,.about-feature{display:grid;grid-template-columns:55fr 45fr;gap:34px;align-items:center}.city-feature-image,.about-image{min-height:420px;border-radius:28px;overflow:hidden;background:linear-gradient(145deg,#d7eaff,#fff);border:1px solid var(--line)}.city-feature-image img,.about-image img{width:100%;height:100%;object-fit:cover}.app-preview-image{height:min(520px,55vw);min-height:380px;border-radius:30px;background:linear-gradient(145deg,#dfeeff,#fff);border:1px solid var(--line);display:grid;place-items:center;padding:18px}.app-preview-image img{max-width:100%;max-height:100%;object-fit:contain}.city-feature h2,.app-feature h2,.about-feature h2{font-size:32px;color:var(--ink);line-height:1.2;margin:0 0 14px}.text-link{display:inline-flex;min-height:44px;align-items:center;color:var(--blue);font-weight:750}.time-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.time-grid article,.cards article,.questions article,.principles article,.help-grid article,.privacy-grid article,.safety-grid article,.interest-grid article{padding:22px;border-radius:22px;background:#fff;border:1px solid var(--line)}.time-grid h3,.cards h3,.questions h3,.principles h3,.help-grid h3,.privacy-grid h3,.interest-grid h3{margin:0 0 8px;color:var(--ink);font-size:20px}.time-grid small{color:var(--blue);font-weight:800}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.questions,.principles,.privacy-grid,.safety-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.safety-grid article{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12)}.safety-grid h3{color:#fff;margin:0 0 8px}.interest-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.interest-grid article{min-height:185px}.interest-grid ul{padding-left:18px;margin-bottom:0}.route{display:grid;grid-template-columns:repeat(6,1fr);gap:0}.route div{position:relative;padding:23px 14px;border-top:2px solid #d4e8ff;background:#fff}.route div:before{content:"";position:absolute;top:-7px;left:18px;width:12px;height:12px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px #edf5ff}.route strong{color:var(--ink)}.route span{display:block;font-size:13px;color:var(--muted)}.story-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}.story-main{padding:30px;border:1px solid var(--line);border-radius:26px;background:#fff}.story-main h2{color:var(--ink);font-size:28px;margin-top:0}.story-side{display:grid;gap:12px}.story-side article{padding:18px;background:var(--pale);border:1px solid var(--line);border-radius:18px}.story-side h3{color:var(--ink);margin:0 0 7px}.topics{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.topics article{padding:24px;border:1px solid var(--line);background:#fff;border-radius:22px}.topics h2{font-size:23px;color:var(--ink);line-height:1.3;margin:0 0 9px}.media-grid{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:150px;gap:12px}.media-slot{position:relative;overflow:hidden;border-radius:22px;background:linear-gradient(145deg,#dfeeff,#fff 72%);border:1px solid var(--line)}.media-grid .wide{grid-column:span 6;grid-row:span 2}.media-grid .mid{grid-column:span 3;grid-row:span 2}.media-grid .small{grid-column:span 2}.media-caption{position:absolute;left:15px;bottom:15px;padding:7px 10px;border-radius:10px;background:rgba(7,29,55,.8);color:#fff;font-size:13px}.notice-list{width:min(calc(100% - 48px),960px);margin:auto}.notice{display:grid;grid-template-columns:180px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}.notice h2{font-size:19px;color:var(--ink);margin:0}.faq{width:min(calc(100% - 48px),900px);margin:auto}.faq details{border:1px solid var(--line);border-radius:18px;background:#fff;padding:0 20px;margin:0 0 10px}.faq summary{cursor:pointer;min-height:60px;display:flex;align-items:center;color:var(--ink);font-weight:750}.faq p{padding:0 0 20px;margin:0}.form-card{width:min(calc(100% - 48px),760px);margin:auto;padding:30px;border:1px solid var(--line);border-radius:26px;background:#fff}.form-card label{display:block;color:var(--ink);font-weight:700;margin:0 0 7px}.form-card input,.form-card textarea,.form-card select{width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:14px;margin:0 0 18px}.form-card textarea{min-height:160px;resize:vertical}.form-card button{min-height:46px;border-radius:14px;padding:0 18px}.app-stage{display:grid;grid-template-columns:1fr 420px;gap:50px;align-items:center}.app-page-image{aspect-ratio:9/16;max-height:650px;border-radius:36px;background:linear-gradient(150deg,#e4f0ff,#fff);border:1px solid var(--line);display:grid;place-items:center;padding:20px}.app-page-image img{max-height:100%;object-fit:contain}.app-icon{width:64px;height:64px;border-radius:18px;background:var(--pale);border:1px solid var(--line);overflow:hidden}.app-icon img{width:100%;height:100%;object-fit:contain}.icon-line{display:flex;align-items:center;gap:14px}.chapter-list{width:min(calc(100% - 48px),900px);margin:auto;counter-reset:n}.chapter-list article{counter-increment:n;padding:28px 0;border-bottom:1px solid var(--line)}.chapter-list h2{display:flex;gap:12px;color:var(--ink);font-size:24px;margin:0 0 11px}.chapter-list h2:before{content:counter(n,decimal-leading-zero);color:var(--blue);font-size:14px}.culture-layout{display:grid;grid-template-columns:270px 1fr;gap:34px}.culture-nav{position:sticky;top:100px;align-self:start;padding:19px;border:1px solid var(--line);border-radius:20px;background:var(--pale)}.culture-nav a{display:block;min-height:38px;padding:7px 8px;border-radius:9px}.culture-nav a:hover{background:#fff;color:var(--blue)}.culture-copy article{padding:0 0 26px;margin:0 0 26px;border-bottom:1px solid var(--line)}.culture-copy h2{color:var(--ink);font-size:28px;margin:0 0 9px}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid rgba(22,119,238,.3);outline-offset:3px}
@media(max-width:1279px){.top-wrap{gap:10px}.brand strong{display:none}.main-nav a,.actions a,.actions button{padding:0 8px}.wrap{width:min(calc(100% - 36px),var(--max))}.interest-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:1023px){.desktop{display:none}.mobile{display:flex}.section-head{align-items:flex-start;flex-direction:column}.gates{grid-template-columns:repeat(2,1fr)}.editorial{grid-template-columns:1fr 1fr}.panel.lead{grid-column:span 2;grid-row:auto}.city-feature,.app-feature,.about-feature{grid-template-columns:1fr 1fr;gap:22px}.time-grid{grid-template-columns:repeat(2,1fr)}.route{grid-template-columns:repeat(3,1fr)}.cards{grid-template-columns:repeat(2,1fr)}.footer-wrap{grid-template-columns:1fr;gap:30px}.drawer-grid{grid-template-columns:repeat(3,1fr)}.app-stage{grid-template-columns:1fr 360px}.culture-layout{grid-template-columns:1fr}.culture-nav{position:static}}
@media(max-width:767px){body{padding-bottom:58px}.wrap,.prose,.page-hero>div{width:calc(100% - 30px)}.section{padding:52px 0}.page-hero{padding:42px 0 28px}.page-hero h1{font-size:clamp(28px,8vw,34px)}.page-hero p{font-size:15px}.section-head h2{font-size:26px}.hero-banner{width:calc(100% - 24px);aspect-ratio:16/10;min-height:0;border-radius:20px}.hero-copy{left:14px;right:14px;bottom:14px;width:auto;padding:15px}.hero-copy h1{font-size:clamp(30px,9vw,38px)}.hero-copy p{font-size:14px}.gates{width:calc(100% - 24px);gap:8px}.gates a{min-height:76px;padding:13px}.editorial{grid-template-columns:1fr}.panel.lead{grid-column:auto}.city-feature,.app-feature,.about-feature,.story-layout,.app-stage{grid-template-columns:1fr}.city-feature-image,.about-image{min-height:0;aspect-ratio:4/3}.app-preview-image{height:auto;min-height:0;aspect-ratio:9/16;max-width:320px;width:100%;margin:auto}.time-grid,.cards,.questions,.principles,.privacy-grid,.safety-grid,.topics{grid-template-columns:1fr}.interest-grid{grid-template-columns:repeat(2,1fr)}.route{grid-template-columns:repeat(2,1fr)}.media-grid{grid-auto-rows:120px}.media-grid .mid{grid-column:span 6}.media-grid .small{grid-column:span 3}.notice{grid-template-columns:1fr;gap:5px}.drawer{height:100%;max-height:none;border-radius:0}.drawer-head{width:calc(100% - 28px);height:62px}.drawer-grid{width:calc(100% - 28px);grid-template-columns:1fr 1fr;padding-top:18px}.search{top:74px;width:calc(100% - 20px);padding:20px}.search form>div{grid-template-columns:1fr}.bottom{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;z-index:90;height:calc(58px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.97);border-top:1px solid var(--line)}.bottom a{display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--muted)}.footer-wrap,.copyright{width:calc(100% - 30px)}.footer-links{grid-template-columns:repeat(2,1fr)}.copyright{flex-direction:column;align-items:flex-start;justify-content:center;padding:16px 0}.app-page-image{max-width:320px;width:100%;margin:auto}.culture-copy h2{font-size:24px}}
@media(max-width:559px){.interest-grid{grid-template-columns:1fr 1fr}.drawer-grid{grid-template-columns:1fr}.media-grid .small{grid-column:span 6}.hero-copy p{display:none}.form-card{width:calc(100% - 30px);padding:22px}}