:root{
--bg:#0C100E;--bg-deep:#080A09;--panel:#141A16;--panel-2:#1A2420;--title:#E8F6EE;--text:#CDE3D6;--muted:#8FB3A0;--soft:#6E8F7E;--green:#2A9D5C;--green-bright:#3CB371;--green-deep:#146B3A;--sand:#EFE6D2;--line:rgba(42,157,92,.18);--line-strong:rgba(42,157,92,.45);--shadow:0 12px 28px rgba(8,10,9,.35);--radius:12px;--max:1120px
}
*{box-sizing:border-box}html{background:var(--bg);scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden}body.no-scroll{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}img{max-width:100%;display:block}.skip-link{position:fixed;left:16px;top:-80px;z-index:200;background:var(--sand);color:#08110C;padding:8px 12px;border-radius:8px}.skip-link:focus{top:8px}.topline{position:fixed;inset:0 0 auto 0;height:22px;z-index:70;background:#050706;border-bottom:1px solid var(--line)}.topline-inner,.railbar-inner,.layer-tabs-inner,.site-main,.footer-inner{width:min(calc(100% - 32px),var(--max));margin:0 auto}.topline-inner{height:22px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--green-bright)}.top-brand{font-weight:700;letter-spacing:.05em}.text-button{border:0;background:transparent;color:var(--green-bright);min-height:22px;padding:0 2px}.railbar{position:fixed;top:22px;left:0;right:0;height:60px;z-index:68;background:rgba(8,10,9,.98);border-bottom:1px solid var(--line-strong)}.railbar-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px}.brand-lockup{justify-self:start;display:flex;align-items:center;min-width:88px;height:44px;font-weight:800;color:var(--title);font-size:16px}.brand-image-slot{display:block;max-width:132px}.brand-image-slot img{height:28px;width:auto;object-fit:contain;object-position:left center}.brand-image-slot:has(img)+.brand-fallback{display:none}.drawer-open{min-height:44px;min-width:88px;border:1px solid var(--line-strong);background:var(--panel);color:var(--title);border-radius:999px;font-weight:700}.app-link{justify-self:end;display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 16px;border-radius:999px;background:linear-gradient(135deg,#3CB371 0%,#2A9D5C 55%,#146B3A 100%);color:#08110C;font-size:14px;font-weight:800}.layer-tabs{position:fixed;top:82px;left:0;right:0;height:40px;background:#0C2A1B;border-bottom:1px solid var(--line-strong);z-index:66}.layer-tabs-inner{height:40px;display:flex;justify-content:center;align-items:center;gap:8px}.layer-tabs a{display:flex;align-items:center;height:30px;padding:0 14px;border-radius:8px;color:var(--text);font-size:13px}.layer-tabs a.active{background:var(--green);color:#08110C;font-weight:800}.site-main{padding-top:154px;padding-bottom:72px}.page-hero{margin-bottom:28px}.eyebrow{font-size:12px;color:var(--green-bright);letter-spacing:.12em;text-transform:uppercase;margin:0 0 8px}.page-hero h1{font-size:24px;line-height:1.3;color:var(--title);margin:0 0 10px}.page-hero p{max-width:820px;margin:0;color:var(--muted)}h2{font-size:20px;line-height:1.4;color:var(--title);margin:0 0 12px}h3{font-size:16px;line-height:1.45;color:var(--title);margin:0 0 8px}p{margin:0 0 12px}.section{margin:0 0 28px}.card,.feature-card,.article-block,.timeline-item,.faq-item,.notice-box{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.card,.article-block,.timeline-item,.faq-item,.notice-box{padding:20px}.cards-3,.cards-2,.cards-4{display:grid;gap:16px}.cards-3{grid-template-columns:repeat(3,minmax(0,1fr))}.cards-2{grid-template-columns:repeat(2,minmax(0,1fr))}.cards-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card p,.article-block p,.timeline-item p,.faq-item p{color:var(--text)}.muted{color:var(--muted)}.soft{color:var(--soft)}.tag{display:inline-flex;align-items:center;min-height:28px;padding:2px 9px;border:1px solid var(--line-strong);border-radius:999px;color:var(--muted);font-size:12px}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 16px;border-radius:10px;font-size:14px;font-weight:800}.btn-primary{background:linear-gradient(135deg,#3CB371 0%,#2A9D5C 55%,#146B3A 100%);color:#08110C}.btn-secondary{border:1px solid var(--line-strong);background:#0B0F0D;color:var(--text)}.btn:hover,.app-link:hover,.drawer-open:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--sand);outline-offset:3px}.media-slot{width:100%;background:var(--bg-deep);border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.cover-slot{height:260px}.grid-image-slot{height:180px}.wide-image-slot{height:200px}.app-image-slot{height:360px;max-width:520px;margin-inline:auto}.icon-slot{width:48px;height:48px;border-radius:11px}.icon-slot img{width:48px;height:48px;object-fit:contain}.home-intro{padding-top:2px}.home-intro .brand-name{font-size:13px;color:var(--green-bright);font-weight:800;margin-top:16px}.home-intro h1{font-size:24px;color:var(--title);line-height:1.3;margin:5px 0 10px}.home-intro .lead{max-width:900px;color:var(--text)}.number-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:16px 0}.number-list div{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:14px}.number-list b{display:block;color:var(--green-bright);font-size:12px;margin-bottom:4px}.lesson-list,.link-list{display:grid;gap:10px}.lesson-list div,.link-list a{padding:14px 16px;background:var(--panel-2);border:1px solid var(--line);border-radius:10px}.link-list a:hover{border-color:var(--line-strong);color:var(--title)}.timeline{position:relative;display:grid;gap:14px}.timeline:before{content:"";position:absolute;left:17px;top:20px;bottom:20px;width:1px;background:var(--line-strong)}.timeline-item{position:relative;padding-left:52px}.timeline-item:before{content:"";position:absolute;left:10px;top:25px;width:15px;height:15px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px var(--panel)}.status{display:inline-flex;min-height:28px;align-items:center;padding:0 9px;border-radius:999px;background:var(--green);color:#08110C;font-size:12px;font-weight:800;margin-bottom:8px}.split-note{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:18px}.quote-note{border-left:3px solid var(--green);padding:14px 16px;background:var(--panel-2);border-radius:0 10px 10px 0;color:var(--sand)}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}.info-table{width:100%;border-collapse:collapse;min-width:640px;background:var(--panel)}.info-table th,.info-table td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.info-table th{color:var(--title);background:var(--panel-2)}.info-table tr:last-child td{border-bottom:0}.site-footer{background:#050706;border-top:1px solid var(--line-strong);color:var(--text);font-size:13px}.footer-inner{padding:34px 0 calc(30px + env(safe-area-inset-bottom))}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:22px}.footer-logo-slot img{height:28px;width:auto;object-fit:contain}.footer-brand strong{display:block;color:var(--title);font-size:16px}.footer-brand span{display:block;color:var(--muted);font-size:12px}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.footer-grid h2{font-size:13px;margin-bottom:8px;color:var(--green-bright)}.footer-grid a{display:block;color:var(--muted);padding:3px 0}.footer-grid a:hover{color:var(--title)}.footer-note{max-width:900px;margin-top:26px;color:var(--muted)}.copyright{margin:8px 0 0;color:var(--soft)}.screen-overlay{position:fixed;inset:0;z-index:90;background:rgba(0,0,0,.62);opacity:0;pointer-events:none;transition:opacity .18s ease}.screen-overlay.visible{opacity:1;pointer-events:auto}.site-drawer{position:fixed;z-index:100;left:0;top:0;bottom:0;width:min(400px,86vw);background:#080A09;border-right:1px solid var(--line-strong);transform:translateX(-103%);visibility:hidden;pointer-events:none;transition:transform .2s ease,visibility .2s ease;overflow-y:auto}.site-drawer.open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;background:#080A09;border-bottom:1px solid var(--line)}.drawer-brand{display:flex;align-items:center;gap:10px;color:var(--title)}.drawer-logo-slot img{height:28px;width:auto;object-fit:contain}.drawer-head button,.search-head button{min-height:44px;padding:0 13px;border-radius:10px;border:1px solid var(--line-strong);background:var(--panel);color:var(--text)}.drawer-groups{padding:8px 16px 24px}.drawer-groups section{padding:12px 0;border-bottom:1px solid var(--line)}.drawer-groups h2{font-size:13px;color:var(--green-bright);margin-bottom:8px}.drawer-groups a{display:block;padding:10px 8px;border-radius:9px}.drawer-groups a:hover{background:var(--panel)}.drawer-groups b{display:block;color:var(--title);font-size:14px}.drawer-groups span{display:block;color:var(--muted);font-size:12px;margin-top:2px}.search-layer{position:fixed;z-index:98;top:82px;left:0;right:0;visibility:hidden;pointer-events:none;opacity:0;transition:opacity .18s ease,visibility .18s ease}.search-layer.open{visibility:visible;pointer-events:auto;opacity:1}.search-card{width:min(calc(100% - 32px),var(--max));margin:0 auto;background:#080A09;border:1px solid var(--line-strong);border-radius:0 0 14px 14px;padding:18px;box-shadow:var(--shadow)}.search-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:12px;color:var(--title)}.search-card label{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}.search-card input{width:100%;height:44px;border-radius:10px;border:1px solid var(--line-strong);background:var(--panel);color:var(--title);padding:0 12px}.search-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:12px}.search-links a{min-height:44px;display:flex;align-items:center;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--text)}.search-links a:hover{border-color:var(--line-strong);color:var(--title)}.search-empty{color:var(--muted);margin:12px 0 0}.mobile-bottom{display:none}.faq-list{display:grid;gap:12px}.faq-item h2{font-size:16px}.section-intro{max-width:860px;color:var(--muted);margin-bottom:15px}.pill-grid{display:flex;flex-wrap:wrap;gap:8px}.pill-grid a,.pill-grid span{display:inline-flex;align-items:center;min-height:36px;padding:0 12px;border-radius:999px;border:1px solid var(--line);background:var(--panel-2);color:var(--text)}
@media(max-width:840px){.cards-3,.cards-4{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.split-note{grid-template-columns:1fr}.number-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:680px){.layer-tabs{display:none}.site-main{padding-top:114px;padding-bottom:82px}.railbar-inner{width:calc(100% - 20px);gap:8px}.brand-lockup{min-width:0}.brand-image-slot img{max-width:92px}.drawer-open{min-width:72px;padding:0 10px}.app-link{padding:0 12px;white-space:nowrap}.topline-inner,.site-main,.footer-inner{width:calc(100% - 32px)}.cards-3,.cards-2,.cards-4{grid-template-columns:1fr}.cover-slot{height:260px}.grid-image-slot{height:180px}.wide-image-slot{height:200px}.app-image-slot{height:340px}.search-layer{top:0;bottom:0;background:#080A09;overflow:auto}.search-card{width:100%;min-height:100%;border:0;border-radius:0;padding:calc(18px + env(safe-area-inset-top)) 16px 28px}.search-links{grid-template-columns:1fr}.mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;z-index:72;min-height:48px;padding-bottom:env(safe-area-inset-bottom);background:#050706;border-top:1px solid var(--line-strong)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:12px;color:var(--muted)}.mobile-bottom a.active{background:var(--green);color:#08110C;font-weight:800}.footer-inner{padding-bottom:calc(82px + env(safe-area-inset-bottom))}.footer-grid{grid-template-columns:1fr 1fr}.number-list{grid-template-columns:1fr 1fr}.page-hero h1,.home-intro h1{font-size:24px}}
@media(max-width:390px){.app-link{font-size:13px;padding:0 10px}.drawer-open{min-width:66px}.brand-fallback{font-size:15px}.footer-grid{grid-template-columns:1fr}.number-list{grid-template-columns:1fr}}