:root{--bg:#0C100E;--deep:#080A09;--panel:#141A16;--panel2:#1A2420;--title:#E8F6EE;--text:#CDE3D6;--muted:#8FB3A0;--soft:#6E8F7E;--green:#2A9D5C;--green2:#3CB371;--green3:#146B3A;--sand:#EFE6D2;--border:rgba(42,157,92,.18);--border-strong:rgba(42,157,92,.45);--shadow:0 12px 28px rgba(8,10,9,.35);--top:22px;--mast:60px;--tabs:40px;--radius:12px}
*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}.shell{width:min(1120px,calc(100% - 32px));margin:0 auto}.skip-link{position:fixed;left:16px;top:-80px;z-index:100;background:var(--sand);color:#08110C;padding:8px 12px;border-radius:8px}.skip-link:focus{top:8px}.topline{position:fixed;z-index:80;top:0;left:0;right:0;height:var(--top);background:#050706;border-bottom:1px solid var(--border)}.topline-inner{height:100%;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--green2)}.text-button,.icon-button,.drawer-trigger{border:0;background:transparent;color:inherit;cursor:pointer}.text-button{min-width:44px;height:22px;color:var(--green2)}.masthead{position:fixed;z-index:79;top:var(--top);left:0;right:0;height:var(--mast);background:rgba(8,10,9,.98);border-bottom:1px solid var(--border-strong)}.masthead-inner{height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}.brand-link{justify-self:start;display:flex;align-items:center;min-height:44px}.brand-logo,.footer-logo,.drawer-logo{height:28px;width:auto;object-fit:contain;object-position:center}.brand-fallback{font-size:16px;font-weight:800;color:var(--title);letter-spacing:.08em}.drawer-trigger{justify-self:center;min-height:44px;display:flex;align-items:center;gap:7px;padding:0 16px;border:1px solid var(--border);border-radius:10px;color:var(--text);background:var(--panel)}.drawer-trigger:hover,.drawer-trigger:focus-visible{border-color:var(--border-strong);outline:none}.app-link{justify-self:end;min-height:40px;display:inline-flex;align-items:center;padding:0 16px;border-radius:10px;background:linear-gradient(135deg,#3CB371 0%,#2A9D5C 55%,#146B3A 100%);color:#08110C;font-size:14px;font-weight:800}.section-tabs{position:fixed;z-index:78;top:calc(var(--top) + var(--mast));left:0;right:0;height:var(--tabs);background:#0F2B1D;border-bottom:1px solid var(--border-strong)}.section-tabs-inner{height:100%;display:flex;justify-content:center;align-items:stretch}.section-tabs a{font-size:13px;min-width:120px;display:flex;align-items:center;justify-content:center;color:var(--text);border-left:1px solid transparent;border-right:1px solid transparent}.section-tabs a:hover,.section-tabs a:focus-visible{background:rgba(42,157,92,.12);outline:none}.section-tabs a.is-active{background:var(--green);color:#08110C;font-weight:800}.site-main{padding-top:calc(var(--top) + var(--mast) + var(--tabs) + 28px);padding-bottom:64px;min-height:70vh}.hero,.page-hero{padding:14px 0 28px}.media-slot{background:var(--deep);border:1px solid var(--border);border-radius:14px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.banner-slot{height:260px}.media-180{height:180px}.media-200{height:200px}.media-240{height:240px}.app-slot{height:min(360px,70vw)}.hero-copy{max-width:800px;margin:22px auto 0;text-align:center}.eyebrow{display:inline-block;font-size:12px;letter-spacing:.12em;color:var(--green2);text-transform:uppercase}.hero h1,.page-hero h1{font-size:24px;line-height:1.3;margin:8px 0 12px;color:var(--title)}h2{font-size:20px;line-height:1.35;color:var(--title)}h3{font-size:16px;line-height:1.4;color:var(--title)}p{margin:0 0 14px}.lead{font-size:16px;color:var(--text)}.muted{color:var(--muted)}.button-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:20px}.btn{height:42px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:10px;font-size:14px;font-weight:800;white-space:nowrap;min-width:44px}.btn-primary{background:linear-gradient(135deg,#3CB371 0%,#2A9D5C 55%,#146B3A 100%);color:#08110C}.btn-secondary{background:var(--deep);border:1px solid var(--border-strong);color:var(--text)}.btn:hover{transform:translateY(-1px)}.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--sand);outline-offset:2px}.section{padding:28px 0}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px}.section-head h2{margin:0}.section-head p{max-width:620px;color:var(--muted);margin:0}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.card-body{padding:18px}.card h3{margin:0 0 10px}.card p:last-child{margin-bottom:0}.card-link{display:inline-flex;margin-top:8px;color:var(--green2);font-weight:700}.feature{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:18px;align-items:stretch;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:18px}.feature-copy{padding:4px 4px 4px 8px}.feature-copy h2{margin-top:0}.number-list,.lesson-list,.directory-grid,.status-list{list-style:none;padding:0;margin:16px 0 0}.number-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.number-list li,.lesson-list li,.status-list li{background:var(--panel2);border:1px solid var(--border);border-radius:10px;padding:11px 13px}.number-list strong{color:var(--sand);margin-right:8px}.lesson-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.lesson-list li strong{display:block;color:var(--title)}.timeline{position:relative;margin:14px 0 0;padding-left:24px}.timeline:before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:1px;background:var(--border-strong)}.timeline-item{position:relative;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:12px}.timeline-item:before{content:"";position:absolute;left:-22px;top:21px;width:9px;height:9px;border-radius:50%;background:var(--green2);box-shadow:0 0 0 4px var(--bg)}.status{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:var(--green);color:#08110C;font-size:12px;font-weight:800}.status.wait{background:var(--sand)}.status.work{background:var(--green2)}.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.faq-item{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:17px}.faq-item h3{margin-top:0}.article-shell{max-width:900px;margin:0 auto}.page-hero{border-bottom:1px solid var(--border);margin-bottom:12px}.page-hero .lead{max-width:760px;color:var(--muted)}.content-section{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:20px;margin:14px 0}.content-section h2{margin:0 0 10px}.content-section h3{margin:16px 0 8px}.content-section ul{margin:10px 0 0;padding-left:20px}.content-section li{margin-bottom:8px}.index-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.index-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:18px}.index-card h2,.index-card h3{margin-top:0}.index-card a{color:var(--green2);font-weight:700}.notice{border-left:3px solid var(--green2);background:var(--panel2);padding:14px 16px;border-radius:0 10px 10px 0;color:var(--text)}.site-footer{background:#050706;border-top:1px solid var(--border-strong);font-size:13px;color:var(--text);padding:34px 0 calc(22px + env(safe-area-inset-bottom))}.footer-grid{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:24px}.footer-brandline{display:flex;align-items:center;gap:10px;margin-bottom:12px}.footer-brandline div{display:flex;flex-direction:column}.footer-brandline span{font-size:11px;color:var(--muted)}.footer-brand p{color:var(--muted);max-width:440px}.footer-col{display:flex;flex-direction:column;gap:6px}.footer-col h2{font-size:13px;margin:0 0 4px;color:var(--green2)}.footer-col a{color:var(--text)}.footer-col a:hover{color:var(--sand)}.footer-bottom{border-top:1px solid var(--border);margin-top:26px;padding-top:16px;display:flex;justify-content:space-between;gap:16px;color:var(--soft)}.footer-bottom-links{display:flex;gap:14px}.site-overlay{position:fixed;z-index:90;inset:0;background:rgba(0,0,0,.58);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.site-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.nav-drawer{position:fixed;z-index:95;top:0;left:0;bottom:0;width:min(400px,86vw);background:var(--deep);border-right:1px solid var(--border-strong);transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s;overflow-y:auto}.nav-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;z-index:2;background:rgba(8,10,9,.97);height:66px;padding:0 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.drawer-brand{display:flex;align-items:center;gap:10px}.icon-button{width:44px;height:44px;color:var(--text);font-size:24px;border-radius:10px}.icon-button:hover{background:var(--panel2)}.drawer-groups{padding:12px 16px 28px}.drawer-groups section{padding:10px 0;border-bottom:1px solid var(--border)}.drawer-groups h2{font-size:12px;color:var(--green2);letter-spacing:.14em;margin:0 0 8px}.drawer-groups a{display:block;padding:10px;border-radius:10px}.drawer-groups a:hover{background:var(--panel)}.drawer-groups strong,.drawer-groups span{display:block}.drawer-groups strong{font-size:14px;color:var(--title)}.drawer-groups span{font-size:12px;color:var(--muted)}.search-layer{position:fixed;z-index:94;top:calc(var(--top) + var(--mast));left:0;right:0;visibility:hidden;pointer-events:none;transform:translateY(-16px);opacity:0;transition:.2s}.search-layer.is-open{visibility:visible;pointer-events:auto;transform:none;opacity:1}.search-card{width:min(760px,calc(100% - 32px));margin:12px auto;background:var(--deep);border:1px solid var(--border-strong);border-radius:14px;box-shadow:var(--shadow);padding:18px}.search-head{display:flex;justify-content:space-between;gap:16px}.search-head h2{margin:4px 0 0}.search-card p{color:var(--muted)}.search-presets{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.search-presets a{display:flex;align-items:center;justify-content:center;min-height:44px;border:1px solid var(--border);background:var(--panel);border-radius:10px;color:var(--text)}.mobile-dock{display:none}.ui-locked{overflow:hidden}.mini-logo{width:48px;height:48px;object-fit:contain}.brand-app{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start}.brand-app h3{margin:0 0 6px}
@media (max-width:860px){.cards{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.5fr repeat(2,1fr)}.footer-brand{grid-column:1/-1}.feature{grid-template-columns:1fr}.media-200{height:220px}.faq-grid{grid-template-columns:1fr}.index-grid{grid-template-columns:1fr}.search-presets{grid-template-columns:1fr 1fr}}
@media (max-width:640px){:root{--tabs:0px}.section-tabs{display:none}.site-main{padding-top:calc(var(--top) + var(--mast) + 20px);padding-bottom:92px}.shell{width:min(100% - 32px,1120px)}.masthead-inner{grid-template-columns:minmax(70px,1fr) auto minmax(70px,1fr);gap:6px}.brand-logo{max-width:96px}.drawer-trigger{padding:0 10px}.app-link{padding:0 10px}.banner-slot{height:220px}.cards{grid-template-columns:1fr}.number-list,.lesson-list{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column}.mobile-dock{position:fixed;z-index:75;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#050706;border-top:1px solid var(--border-strong)}.mobile-dock a{display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--text);min-width:0}.mobile-dock a.is-active{background:var(--green);color:#08110C;font-weight:800}.search-layer{top:0;bottom:0;background:var(--deep);overflow-y:auto}.search-layer.is-open{transform:none}.search-card{width:100%;min-height:100%;margin:0;border:0;border-radius:0;padding:24px 16px}.search-presets{grid-template-columns:1fr}.nav-drawer{width:86vw}.section-head{align-items:flex-start;flex-direction:column}.hero-copy{text-align:left}.button-row{justify-content:flex-start}.brand-app{grid-template-columns:1fr}.app-slot{height:340px}}

/* 最终可读性保护：长文本不撑破容器，手机底栏不遮住页脚末行。 */
.card,.content-section,.footer-col,.feature-copy{min-width:0}
p,a,h1,h2,h3{overflow-wrap:anywhere}
@media (max-width:640px){.site-footer{padding-bottom:calc(70px + env(safe-area-inset-bottom))}}