*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F4FBFF;color:#223044;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.82;overflow-x:hidden}a{color:#0877C9}img{max-width:100%}button,input,select,textarea{font:inherit}.drawer-open{overflow:hidden}.site-header{position:sticky;top:0;z-index:9999;width:100%;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(8,119,201,.08)}.header-inner{max-width:1180px;min-height:72px;margin:0 auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:16px}.logo-link{display:flex;align-items:center;flex:0 0 auto;text-decoration:none}.site-logo{display:inline-flex;align-items:center}.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}.logo-placeholder{display:block;width:154px;height:38px;border-radius:10px;background:#EAF7FF}.nav-core{display:flex;align-items:center;justify-content:center;gap:4px;min-width:0}.nav-core a{color:#1D2A3A;padding:9px 12px;font-weight:700;text-decoration:none;white-space:nowrap;border-radius:10px}.nav-core a.is-current,.nav-core a:hover{color:#0877C9;background:#EAF7FF}.main-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);color:#fff;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 12px 26px rgba(8,119,201,.18)}.header-action{flex:0 0 auto}.menu-toggle{display:none;width:42px;height:42px;padding:9px;border:0;border-radius:12px;background:#EAF7FF;cursor:pointer}.menu-toggle span{display:block;height:2px;background:#0877C9;margin:5px 0;border-radius:2px}.channel-strip{background:#EAF7FF;border-bottom:1px solid rgba(28,168,246,.12)}.channel-inner{max-width:1180px;margin:0 auto;padding:8px 18px;display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:thin}.channel-inner a{flex:0 0 auto;color:#5F7082;padding:5px 10px;text-decoration:none;white-space:nowrap;border-radius:999px;font-size:14px}.channel-inner a:hover,.channel-inner a.is-current{color:#0877C9;background:#fff}.mobile-drawer,.drawer-mask{display:none}.site-main{min-height:60vh}.home-shell,.page-shell{max-width:1180px;margin:0 auto;padding:0 18px}.home-intro{padding:44px 0 20px;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);gap:30px;align-items:end}.home-copy .eyebrow,.eyebrow{display:inline-block;margin-bottom:10px;color:#0877C9;font-weight:700;font-size:14px;letter-spacing:.08em}.home-copy h1,.page-title h1{margin:0;color:#0877C9;line-height:1.16;font-size:clamp(34px,4.5vw,46px)}.home-copy p,.page-title p{margin:16px 0 0;color:#5F7082;font-size:18px}.home-summary{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:16px;padding:24px;box-shadow:0 16px 40px rgba(8,119,201,.08)}.home-summary strong{display:block;color:#0877C9;font-size:20px;margin-bottom:8px}.hero-slider{position:relative;height:330px;border-radius:16px;background:#fff;overflow:hidden;box-shadow:0 16px 40px rgba(8,119,201,.08);margin:20px 0 0}.slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .35s ease}.slide.is-active{opacity:1;pointer-events:auto}.slide .media{height:100%;aspect-ratio:auto;border-radius:0;background:#fff}.slider-prev,.slider-next{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:42px;height:42px;border:0;border-radius:50%;background:rgba(255,255,255,.92);color:#0877C9;font-size:25px;cursor:pointer;box-shadow:0 8px 24px rgba(8,119,201,.12)}.slider-prev{left:14px}.slider-next{right:14px}.slider-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);z-index:4;display:flex;gap:8px}.slider-dot{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:#A6E4FF;cursor:pointer}.slider-dot.is-active{background:#0877C9}.section-space{padding:56px 0}.section-tight{padding:34px 0}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:22px}.section-heading h2,.section-title{margin:0;color:#0877C9;font-size:29px;line-height:1.35}.section-heading p{max-width:600px;margin:0;color:#6A7D8F}.feature-ledger{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}.feature-main{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:16px;padding:24px;box-shadow:0 16px 40px rgba(8,119,201,.08)}.feature-main .media{height:230px;aspect-ratio:auto;margin-bottom:20px}.feature-main h2{font-size:30px;color:#0877C9;margin:0 0 10px}.feature-main p{margin:0 0 14px}.ledger-side{display:grid;gap:14px}.ledger-row{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:14px;padding:19px 20px;box-shadow:0 12px 30px rgba(8,119,201,.06)}.ledger-row span{display:block;color:#7A8A9A;font-size:13px;font-weight:700}.ledger-row h3{margin:4px 0 6px;color:#0877C9;font-size:20px}.ledger-row p{margin:0;color:#5F7082}.topic-scroller{display:flex;gap:10px;overflow-x:auto;padding:4px 2px 10px;scrollbar-width:thin}.topic-scroller a{flex:0 0 auto;padding:9px 15px;border:1px solid rgba(28,168,246,.12);border-radius:999px;background:#fff;text-decoration:none;font-weight:700;color:#0877C9}.guide-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}.guide-panel{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:16px;padding:24px;box-shadow:0 16px 40px rgba(8,119,201,.08)}.guide-panel:nth-child(1){background:#EAF7FF}.guide-panel h2{margin:0 0 10px;color:#0877C9}.guide-panel p{margin:0 0 12px;color:#5F7082}.reading-rule{max-width:860px;margin:0 auto;background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:16px;padding:26px 28px;box-shadow:0 16px 40px rgba(8,119,201,.08)}.reading-rule h2{margin:0 0 10px;color:#0877C9;font-size:24px}.reading-rule p{margin:0}.page-title{padding:50px 0 24px;border-bottom:1px solid rgba(28,168,246,.12)}.crumbs{display:flex;gap:8px;flex-wrap:wrap;color:#7A8A9A;font-size:14px;margin-bottom:12px}.crumbs a{text-decoration:none}.content-layout{display:grid;grid-template-columns:minmax(0,820px) minmax(220px,1fr);gap:34px;align-items:start;padding:38px 0 60px}.reading{max-width:820px}.reading h2{margin:34px 0 12px;color:#0877C9;font-size:25px;line-height:1.42}.reading h3{margin:26px 0 10px;color:#1D2A3A;font-size:19px}.reading p{margin:0 0 18px}.reading ul,.reading ol{padding-left:22px}.reading li{margin:8px 0}.aside-index{position:sticky;top:110px;background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:16px;padding:20px;box-shadow:0 16px 40px rgba(8,119,201,.08)}.aside-index h2{font-size:18px;color:#0877C9;margin:0 0 10px}.aside-index a{display:block;padding:7px 0;text-decoration:none;border-bottom:1px dashed rgba(28,168,246,.18)}.aside-index a:last-child{border-bottom:0}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#EAF7FF;aspect-ratio:16/9}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.media-placeholder{position:absolute;inset:0;background:#EAF7FF}.reading-media{margin:22px 0 28px;height:228px;aspect-ratio:auto}.note-band{margin:24px 0;background:#EAF7FF;border-left:4px solid #1CA8F6;border-radius:0 14px 14px 0;padding:18px 20px;color:#49677C}.split-note{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0}.split-note>div{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:14px;padding:20px}.split-note h3{margin:0 0 8px;color:#0877C9}.step-line{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:26px 0;counter-reset:step}.step-line>div{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:14px;padding:20px}.step-line>div:before{counter-increment:step;content:counter(step);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#EAF7FF;color:#0877C9;font-weight:800;margin-bottom:10px}.related-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:30px}.related-strip a{display:block;background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:13px;padding:16px;text-decoration:none;font-weight:700}.mini-directory{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0 26px}.mini-directory a{padding:8px 12px;background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:999px;text-decoration:none}.quote-question{font-size:21px;color:#0877C9;font-weight:700;background:#fff;border-radius:14px;padding:18px 20px;border:1px solid rgba(28,168,246,.12);margin:14px 0}.service-grid,.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.service-link,.faq-item{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:15px;padding:22px;box-shadow:0 14px 30px rgba(8,119,201,.06)}.service-link{text-decoration:none}.service-link strong{display:block;color:#0877C9;margin-bottom:6px}.service-link span{color:#5F7082}.faq-item h2{margin:0 0 10px;color:#0877C9;font-size:20px}.faq-item p{margin:0}.quick-float{position:fixed;right:14px;top:40%;z-index:8000;display:grid;gap:8px;width:96px}.quick-float a,.quick-float button{display:block;text-align:center;border:1px solid rgba(28,168,246,.12);background:#fff;color:#0877C9;border-radius:12px;padding:10px 8px;text-decoration:none;font-size:13px;box-shadow:0 10px 24px rgba(8,119,201,.08)}.quick-float .float-register{background:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);color:#fff;border:0}.quick-float button{cursor:pointer}.site-footer{margin-top:24px;background:#082A46;color:#EAF8FF}.footer-grid{max-width:1180px;margin:0 auto;padding:46px 18px;display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:28px}.footer-grid h2{margin:0 0 12px;font-size:17px;color:#fff}.footer-grid a{display:block;color:#EAF8FF;text-decoration:none;margin:6px 0}.footer-brand p{margin:16px 0 0;max-width:420px;color:#CBE9F7}.footer-bottom{max-width:1180px;margin:0 auto;padding:18px;border-top:1px solid rgba(234,248,255,.18);display:flex;justify-content:space-between;gap:20px;color:#CBE9F7;font-size:14px}.footer-bottom p{margin:0}.mobile-bottom{display:none}
@media(min-width:1181px){.site-main>.page-shell,.site-main>.home-shell{padding-right:78px}}
@media(max-width:1180px){.quick-float{display:none}}
@media(max-width:980px){.header-inner{min-height:66px;display:grid;grid-template-columns:42px 1fr auto;gap:10px}.menu-toggle{display:block}.nav-core{display:none}.logo-link{min-width:0;justify-self:center}.site-logo img{height:36px;max-width:148px}.logo-placeholder{width:140px;height:34px}.header-action{height:40px;min-width:82px;padding:0 14px;font-size:14px}.channel-strip{display:none}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#fff;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;box-shadow:18px 0 40px rgba(8,119,201,.16)}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(8,42,70,.42);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.drawer-head{height:68px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(28,168,246,.12)}.drawer-head a{display:flex;align-items:center}.drawer-close{width:40px;height:40px;border:0;border-radius:10px;background:#EAF7FF;color:#0877C9;font-size:26px;cursor:pointer}.drawer-scroll{height:calc(100vh - 68px);overflow-y:auto;padding:12px 16px 30px}.drawer-group{padding:8px 0 12px;border-bottom:1px solid rgba(28,168,246,.12)}.drawer-group h2{font-size:14px;color:#7A8A9A;margin:0 0 6px}.drawer-group a{display:block;padding:8px 4px;color:#1D2A3A;text-decoration:none}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9000;min-height:62px;padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid rgba(28,168,246,.12);box-shadow:0 -8px 24px rgba(8,119,201,.06)}.mobile-bottom a{display:grid;place-items:center;color:#0877C9;text-decoration:none;font-size:14px;font-weight:700}body{padding-bottom:62px}.home-intro{grid-template-columns:1fr;padding-top:36px}.hero-slider{height:260px}.feature-ledger,.content-layout{grid-template-columns:1fr}.aside-index{position:static}.guide-grid{grid-template-columns:1fr 1fr}.guide-panel:first-child{grid-column:1/-1}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}}
@media(max-width:700px){.home-shell,.page-shell{padding-left:14px;padding-right:14px}.home-copy h1,.page-title h1{font-size:clamp(26px,8vw,32px)}.home-copy p,.page-title p{font-size:16px}.hero-slider{height:180px}.slider-prev,.slider-next{width:34px;height:34px;font-size:20px}.section-space{padding:38px 0}.section-heading{display:block}.section-heading p{margin-top:8px}.feature-main{padding:20px}.feature-main .media{height:200px}.guide-grid,.service-grid,.faq-grid,.split-note,.step-line,.related-strip{grid-template-columns:1fr}.content-layout{padding-top:28px;gap:22px}.reading-media{height:205px}.footer-grid{grid-template-columns:1fr;padding:36px 16px;gap:20px}.footer-grid>div:last-child{grid-column:auto}.footer-bottom{flex-direction:column;padding:16px}}
@media(max-width:430px){.header-inner{padding:0 10px}.site-logo img{height:34px;max-width:132px}.logo-placeholder{width:126px;height:32px}.header-action{min-width:76px;padding:0 11px}.hero-slider{height:168px}}