:root{--bg:#F4FAFC;--surface:#FFFFFF;--soft:#E7F3F6;--title:#0E3A46;--text:#24505A;--muted:#4A7380;--assist:#7A9AA4;--brand:#1A7F8F;--bright:#2BB3C4;--deep:#0F5B68;--pale:#D7EEF2;--border:rgba(26,127,143,.16);--shadow:0 14px 34px rgba(14,58,70,.08);--max:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}button,input{font:inherit}button{color:inherit}.site-header{position:fixed;inset:0 0 auto;z-index:1000}.harbor-bar{height:58px;background:var(--pale);border-bottom:1px solid var(--border)}.harbor-inner{max-width:var(--max);height:100%;margin:auto;padding:0 20px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand-center{justify-self:center;display:flex;align-items:center;min-height:44px}.brand-logo{max-height:34px;width:auto}.brand-text{font-weight:800;letter-spacing:.08em;color:var(--title);font-size:20px}.round-button{width:44px;height:44px;border-radius:50%;border:1px solid var(--border);background:rgba(255,255,255,.78);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;font-size:20px;transition:.2s}.round-button:hover,.round-button:focus-visible{border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,127,143,.12);outline:none}.harbor-actions{justify-self:end;display:flex;align-items:center;gap:10px}.app-button,.primary-button,.secondary-button{min-height:44px;border-radius:999px;padding:10px 18px;display:inline-flex;align-items:center;justify-content:center;font-weight:700}.app-button,.primary-button{background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff}.secondary-button{background:#fff;color:var(--deep);border:1px solid var(--border)}.app-button:hover,.primary-button:hover,.secondary-button:hover,.app-button:focus-visible,.primary-button:focus-visible,.secondary-button:focus-visible{transform:translateY(-1px);box-shadow:var(--shadow);outline:2px solid transparent}.dock-bar{height:48px;background:#fff;border-bottom:1px solid var(--border)}.dock-inner{max-width:var(--max);height:100%;margin:auto;display:flex;justify-content:center;align-items:stretch;gap:36px;padding:0 20px}.dock-link{display:flex;align-items:center;position:relative;color:var(--muted);font-weight:650;white-space:nowrap}.dock-link:after{content:"";position:absolute;left:18%;right:18%;bottom:0;height:3px;border-radius:3px;background:transparent}.dock-link:hover,.dock-link:focus-visible,.dock-link.is-current{color:var(--deep);outline:none}.dock-link.is-current:after{background:var(--brand)}.site-main{padding-top:106px;min-height:60vh}.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}.section{padding:64px 0}.section.compact{padding:46px 0}.eyebrow{display:inline-block;color:var(--brand);font-weight:800;letter-spacing:.12em;font-size:13px;text-transform:uppercase}.page-hero{padding:58px 0 34px}.page-hero h1,.cover-copy h1{margin:8px 0 18px;color:var(--title);font-size:clamp(28px,4vw,32px);line-height:1.25;letter-spacing:-.02em}.page-hero p,.lead{max-width:820px;font-size:17px;color:var(--muted);margin:0}.cover{padding:42px 0 54px}.cover-card{background:var(--surface);border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow);overflow:hidden}.cover-copy{padding:34px 36px 28px}.cover-copy p{max-width:840px;margin:0;color:var(--muted)}.cover-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.media-slot{background:linear-gradient(145deg,var(--pale),var(--soft));min-height:180px;display:flex;align-items:center;justify-content:center;color:var(--assist);overflow:hidden}.cover-media{max-height:340px}.cover-media img{width:100%;height:100%;object-fit:cover;max-height:340px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.section-head h2{font-size:25px;line-height:1.3;color:var(--title);margin:0}.section-head p{margin:0;max-width:620px;color:var(--muted)}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:24px;box-shadow:0 8px 24px rgba(14,58,70,.045)}.card h2,.card h3{margin:0 0 10px;color:var(--title);line-height:1.4}.card h2{font-size:22px}.card h3{font-size:19px}.card p{margin:0;color:var(--text)}.card p+p{margin-top:12px}.card-link{display:block;transition:.2s}.card-link:hover,.card-link:focus-visible{transform:translateY(-2px);border-color:rgba(26,127,143,.34);box-shadow:var(--shadow);outline:none}.card-media{margin:-24px -24px 20px;min-height:150px;border-radius:18px 18px 0 0;overflow:hidden;background:linear-gradient(145deg,var(--pale),var(--soft))}.card-media img{width:100%;height:190px;object-fit:cover}.index-list{counter-reset:item;display:grid;gap:14px}.index-row{background:#fff;border:1px solid var(--border);border-radius:16px;padding:20px 22px;display:grid;grid-template-columns:56px 1fr;gap:14px;align-items:start}.index-row .num{color:var(--brand);font-size:22px;font-weight:850;letter-spacing:.04em}.index-row h3{margin:0 0 6px;color:var(--title);font-size:18px}.index-row p{margin:0}.prose{max-width:860px}.prose h2{color:var(--title);font-size:23px;margin:38px 0 12px}.prose h3{color:var(--title);font-size:19px;margin:28px 0 8px}.prose p{margin:0 0 16px}.prose ul,.prose ol{padding-left:1.4em}.prose li+li{margin-top:8px}.soft-band{background:var(--soft);border-block:1px solid var(--border)}.quote-card{background:var(--pale);color:var(--deep);border-radius:18px;padding:24px;border:1px solid var(--border)}.tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}.tag{display:inline-flex;min-height:34px;align-items:center;padding:6px 12px;border-radius:999px;background:var(--soft);color:var(--deep);font-size:14px;font-weight:700}.image-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.image-tile{background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden}.image-tile .media-slot{min-height:150px}.image-tile img{width:100%;height:160px;object-fit:cover}.image-tile p{margin:0;padding:14px 16px;color:var(--muted)}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--border);border-radius:16px;padding:22px}.faq-item h2{margin:0 0 10px;color:var(--title);font-size:19px}.faq-item p{margin:0}.notice{padding:18px 20px;border-radius:16px;background:var(--pale);color:var(--deep);border:1px solid var(--border)}.steps{display:grid;gap:16px;counter-reset:step}.step{background:#fff;border:1px solid var(--border);border-radius:18px;padding:22px;display:grid;grid-template-columns:50px 1fr;gap:14px}.step:before{counter-increment:step;content:counter(step, decimal-leading-zero);width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--soft);color:var(--brand);font-weight:850}.step h2,.step h3{margin:0 0 6px;color:var(--title)}.step p{margin:0}.site-footer{background:#0E3A46;color:#D4E8EC;margin-top:40px}.footer-shell{max-width:var(--max);margin:auto;padding:48px 20px calc(34px + env(safe-area-inset-bottom))}.footer-brand{display:flex;align-items:center;gap:14px;padding-bottom:26px;border-bottom:1px solid rgba(215,238,242,.14)}.footer-logo{max-height:34px;width:auto}.footer-brand strong{display:block;color:#fff;font-size:20px}.footer-brand span{display:block;font-size:12px;letter-spacing:.18em}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;padding:30px 0}.footer-grid h2{font-size:15px;margin:0 0 12px;color:#fff}.footer-grid a{display:block;color:#D4E8EC;padding:5px 0}.footer-grid a:hover,.footer-grid a:focus-visible{color:#fff;text-decoration:underline;outline:none}.footer-note,.copyright{margin:10px 0 0;color:#BFDCE2;font-size:14px}.page-overlay{position:fixed;inset:0;background:rgba(14,58,70,.48);z-index:1200;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.page-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.modal-card{position:fixed;z-index:1300;left:50%;top:50%;transform:translate(-50%,-48%);width:min(760px,92vw);max-height:min(82vh,760px);overflow:auto;background:#fff;border:1px solid var(--border);border-radius:20px;box-shadow:0 28px 80px rgba(14,58,70,.25);padding:24px;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.modal-card.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,-50%)}.modal-head{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-bottom:18px;border-bottom:1px solid var(--border)}.modal-head strong{display:block;color:var(--title);font-size:19px}.modal-head span{display:block;color:var(--muted);font-size:13px}.modal-brand{display:flex;align-items:center;gap:12px}.modal-brand img{max-height:30px;width:auto}.atlas-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding-top:22px}.atlas-grid h2{font-size:14px;color:var(--brand);margin:0 0 10px;letter-spacing:.12em}.atlas-grid a{display:block;padding:10px 0;border-bottom:1px dashed var(--border)}.atlas-grid strong{display:block;color:var(--title)}.atlas-grid span{display:block;color:var(--muted);font-size:13px;line-height:1.55;margin-top:2px}.search-dialog{width:min(620px,92vw)}.search-box{display:flex;align-items:center;gap:10px;background:var(--soft);border:1px solid var(--border);border-radius:999px;margin:22px 0 18px;padding:0 16px;min-height:50px}.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;color:var(--title)}.preset-links{display:flex;flex-wrap:wrap;gap:10px}.preset-links a{padding:9px 14px;background:#fff;border:1px solid var(--border);border-radius:999px;color:var(--deep);font-weight:700}.preset-links a:hover,.preset-links a:focus-visible{border-color:var(--brand);outline:none}.search-hint{font-size:13px;color:var(--muted);margin:16px 0 0}.modal-open{overflow:hidden}.mobile-bottom-nav{display:none}.split-detail{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}.mini-title{font-size:14px;color:var(--brand);font-weight:800;letter-spacing:.08em;margin-bottom:6px}.inline-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.inline-links a{min-height:44px;padding:9px 15px;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--deep);font-weight:700;display:inline-flex;align-items:center}.inline-links a:hover,.inline-links a:focus-visible{border-color:var(--brand);outline:none}
@media(max-width:900px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.image-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,1fr)}.dock-inner{gap:22px}.split-detail{grid-template-columns:1fr}}
@media(max-width:720px){body{font-size:16px;padding-bottom:calc(50px + env(safe-area-inset-bottom))}.harbor-inner{grid-template-columns:44px minmax(0,1fr) auto;padding:0 16px;gap:8px}.brand-center{min-width:0}.brand-logo{max-width:150px}.search-trigger{display:none}.app-button{padding:8px 12px;font-size:14px;white-space:nowrap}.dock-bar{display:none}.site-main{padding-top:58px}.wrap{padding:0 16px}.section{padding:46px 0}.page-hero{padding:38px 0 24px}.cover{padding:26px 0 42px}.cover-copy{padding:26px 22px 22px}.cover-actions{flex-direction:column;align-items:stretch}.cover-actions a{width:100%}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.image-strip{grid-template-columns:1fr 1fr;gap:12px}.image-tile img{height:120px}.section-head{align-items:flex-start;flex-direction:column}.atlas-grid{grid-template-columns:1fr}.modal-card{padding:18px;max-height:84vh}.footer-grid{grid-template-columns:1fr 1fr;gap:24px 18px}.site-footer{margin-bottom:0}.footer-shell{padding-bottom:34px}.mobile-bottom-nav{position:fixed;z-index:1100;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.96);border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(5,1fr);backdrop-filter:blur(12px)}.mobile-bottom-nav a{display:grid;place-items:center;min-height:50px;font-size:13px;color:var(--muted)}.mobile-bottom-nav a.is-current{color:var(--brand);font-weight:800}.page-overlay{z-index:1400}.modal-card{z-index:1500}.index-row{grid-template-columns:46px 1fr;padding:18px}.card{padding:20px}.card-media{margin:-20px -20px 18px}.footer-brand{padding-top:0}}
@media(max-width:420px){.brand-logo{max-width:120px}.image-strip{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.atlas-dialog{width:94vw}.app-button{padding-inline:10px}.harbor-inner{padding-inline:12px}}