: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;
  --border:rgba(42,157,92,.18);--border-strong:rgba(42,157,92,.45);--shadow:0 12px 28px rgba(8,10,9,.35);
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg-deep)}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
body.no-scroll{overflow:hidden}
a{color:inherit;text-decoration:none}
a,button{outline:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--green-bright);outline-offset:3px}
button{font:inherit}
img{max-width:100%;display:block}
.shell{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.site-header{position:fixed;z-index:70;top:0;left:0;right:0}
.eyebar{height:22px;background:#060806;border-bottom:1px solid var(--border)}
.eyebrow-inner{height:22px;display:flex;align-items:center;justify-content:space-between;color:var(--green-bright);font-size:12px;line-height:1}
.text-button{height:22px;border:0;background:transparent;color:var(--green-bright);cursor:pointer;padding:0 6px}
.mainbar{height:60px;background:#090C0A;border-bottom:1px solid var(--border-strong)}
.mainbar-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px}
.brand-link{justify-self:start;display:inline-flex;min-height:44px;align-items:center}
.brand-logo{height:28px;width:auto;object-fit:contain;object-position:center}
.brand-text{font-size:16px;font-weight:700;color:var(--title)}
.drawer-button{min-width:86px;height:42px;border:1px solid var(--border-strong);background:var(--panel);color:var(--text);border-radius:12px;cursor:pointer;font-size:14px}
.app-link{justify-self:end;display:inline-flex;min-height:42px;align-items:center;padding:0 16px;border-radius:12px;background:linear-gradient(135deg,#3CB371 0%,#2A9D5C 55%,#146B3A 100%);color:#08110C;font-weight:700;font-size:14px}
.tabbar{height:40px;background:var(--green-deep);border-bottom:1px solid var(--border-strong)}
.tabbar-inner{height:40px;display:flex;justify-content:center;align-items:center;gap:8px}
.tab-link{height:30px;display:inline-flex;align-items:center;padding:0 14px;border-radius:9px;color:var(--sand);font-size:13px}
.tab-link.is-current{background:var(--green);color:#08110C;font-weight:700}
.site-main{padding-top:146px;min-height:70vh}
.page-section{padding:28px 0}
.page-section.tight{padding-top:16px}
.page-hero{padding:34px 0 18px}
.kicker{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border:1px solid var(--border);border-radius:999px;color:var(--green-bright);font-size:12px;letter-spacing:.08em;background:rgba(20,26,22,.72)}
h1,h2,h3{margin:0;color:var(--title);line-height:1.3}
h1{font-size:24px;margin-top:10px}
h2{font-size:20px}
h3{font-size:16px}
p{margin:10px 0 0}.lead{max-width:840px;color:var(--text);font-size:15px}.subtle{color:var(--muted)}
.hero-media,.image-slot{background:var(--bg-deep);border:1px solid var(--border);border-radius:14px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.hero-media{height:260px}.image-slot{height:180px}.image-slot.tall{height:360px}.image-slot.medium{height:200px}
.hero-media img,.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.home-cover-copy{text-align:center;max-width:840px;margin:24px auto 0}
.home-cover-copy .brandline{color:var(--green-bright);font-weight:700;letter-spacing:.08em}.home-cover-copy h1{font-size:28px}
.actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:18px}.actions.start{justify-content:flex-start}.app-icon{width:48px;height:48px;object-fit:contain;object-position:center;margin-bottom:12px}
.btn{display:inline-flex;min-height:42px;align-items:center;justify-content:center;padding:0 16px;border-radius:11px;font-size:14px;font-weight:700;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,#3CB371 0%,#2A9D5C 55%,#146B3A 100%);color:#08110C}
.btn-secondary{background:#0B0E0C;border:1px solid var(--border-strong);color:var(--text)}
.btn:hover,.app-link:hover{filter:brightness(1.06)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:16px}.section-head p{max-width:640px;color:var(--muted);margin:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:18px;box-shadow:var(--shadow)}
.card.media-card{padding:0;overflow:hidden}.card.media-card .image-slot{border:0;border-radius:0}.card-body{padding:18px}.card h3{margin-bottom:7px}.card p{color:var(--muted)}
.link-row{display:inline-flex;margin-top:12px;min-height:40px;align-items:center;color:var(--sand);font-weight:700;border-bottom:1px solid var(--border-strong)}
.editorial{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:22px}.editorial p{margin-top:12px}.editorial p:first-child{margin-top:0}
.number-list{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:16px 0}.number-item{background:var(--panel-2);border:1px solid var(--border);border-radius:12px;padding:14px}.number-item strong{display:block;color:var(--sand);font-size:18px}.number-item span{color:var(--muted);font-size:13px}
.lesson-list,.article-list,.info-list{display:grid;gap:12px}.lesson-item,.article-item,.info-item{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px}.lesson-item h3,.article-item h3,.info-item h3{margin-bottom:5px}.lesson-item p,.article-item p,.info-item p{color:var(--muted)}
.timeline{position:relative;margin-top:18px;padding-left:26px}.timeline:before{content:"";position:absolute;left:7px;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:14px}.timeline-item:before{content:"";position:absolute;left:-24px;top:22px;width:10px;height:10px;border-radius:50%;background:var(--green-bright);box-shadow:0 0 0 4px var(--bg)}.status{display:inline-flex;min-height:26px;align-items:center;padding:0 9px;border-radius:999px;background:var(--green);color:#07100B;font-size:12px;font-weight:700}.status.wait{background:var(--panel-2);color:var(--sand);border:1px solid var(--border-strong)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.chip{display:inline-flex;min-height:34px;align-items:center;padding:0 11px;border:1px solid var(--border);border-radius:999px;background:var(--panel-2);color:var(--text)}
.policy-sections{display:grid;gap:14px}.policy-section{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:20px}.policy-section h2{margin-bottom:10px}.policy-section h3{margin-top:16px}.policy-section ul{margin:10px 0 0;padding-left:20px}.policy-section li{margin:6px 0;color:var(--muted)}
.faq-list{display:grid;gap:12px}.faq-item{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:18px}.faq-item h2{font-size:16px}.faq-item p{color:var(--text)}
.site-footer{background:#050706;border-top:1px solid var(--border-strong);padding:30px 0 calc(28px + env(safe-area-inset-bottom));font-size:13px;color:var(--text)}
.footer-brand{display:flex;align-items:center;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--border)}.footer-logo{height:28px;width:auto;object-fit:contain}.footer-brand strong{display:block;font-size:16px;color:var(--title)}.footer-brand span{display:block;color:var(--muted);font-size:12px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;padding:20px 0}.footer-grid h2{font-size:13px;color:var(--green-bright);margin-bottom:8px}.footer-grid ul{list-style:none;margin:0;padding:0}.footer-grid li{margin:5px 0}.footer-grid a{color:var(--text)}.footer-grid a:hover{color:var(--sand)}
.footer-note{border-top:1px solid var(--border);padding-top:16px;color:var(--muted)}.footer-note p{margin:6px 0}
.overlay{position:fixed;inset:0;z-index:88;background:rgba(5,7,6,.72);visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.overlay.is-open{visibility:visible;pointer-events:auto;opacity:1}
.drawer{position:fixed;z-index:95;top:0;bottom:0;left:0;width:400px;max-width:86vw;background:var(--bg-deep);border-right:1px solid var(--border-strong);transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s}.drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:66px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--title)}.drawer-brand img{height:28px;width:auto;object-fit:contain}.icon-button{min-height:44px;padding:0 14px;border-radius:10px;border:1px solid var(--border-strong);background:var(--panel);color:var(--text);cursor:pointer}.drawer-scroll{height:calc(100% - 66px);overflow-y:auto;padding:16px}.drawer-group{margin-bottom:18px}.drawer-group h2{font-size:13px;color:var(--green-bright);margin:0 0 8px}.drawer-item{display:block;padding:12px;border-radius:11px;border:1px solid transparent}.drawer-item:hover{background:var(--panel);border-color:var(--border)}.drawer-item strong{display:block;color:var(--title);font-size:14px}.drawer-item span{display:block;color:var(--muted);font-size:12px;line-height:1.5;margin-top:2px}
.search-panel{position:fixed;z-index:94;top:82px;left:50%;width:min(760px,calc(100% - 32px));transform:translate(-50%,-18px);background:var(--bg-deep);border:1px solid var(--border-strong);border-radius:14px;box-shadow:var(--shadow);padding:20px;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:translate(-50%,0)}.search-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}.search-head h2{font-size:20px;margin-top:6px}.search-tip{color:var(--muted)}.search-presets{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.search-presets a{min-height:44px;display:flex;align-items:center;padding:0 12px;border:1px solid var(--border);background:var(--panel);border-radius:10px}.search-presets a:hover{border-color:var(--border-strong);color:var(--sand)}
.mobile-bottom{display:none}
.callout{background:linear-gradient(180deg,rgba(20,26,22,.95),rgba(8,10,9,.95));border:1px solid var(--border-strong);border-radius:14px;padding:20px}.callout h2{margin-bottom:6px}.callout p{color:var(--text)}
.two-col-copy{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}.stack{display:grid;gap:14px}
@media(max-width:860px){
  .grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:1fr}.grid-2,.two-col-copy{grid-template-columns:1fr}.number-list{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .site-main{padding-top:98px;padding-bottom:64px}.tabbar{display:none}.mainbar-inner{grid-template-columns:auto 1fr auto;gap:8px}.drawer-button{justify-self:center;min-width:72px}.app-link{padding:0 11px}.brand-logo{max-width:108px}.brand-text{font-size:15px}
  .page-hero{padding-top:24px}.hero-media{height:260px}.home-cover-copy h1{font-size:24px}.section-head{align-items:flex-start;flex-direction:column;gap:8px}
  .grid-4,.grid-2{grid-template-columns:1fr}.number-list{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:18px}.search-panel{inset:0;top:0;left:0;width:100%;height:100%;transform:none;border-radius:0;padding:calc(18px + env(safe-area-inset-top)) 16px 20px}.search-panel.is-open{transform:none}.search-presets{grid-template-columns:1fr 1fr}.mobile-bottom{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;z-index:80;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#070907;border-top:1px solid var(--border-strong)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:12px;color:var(--muted)}.mobile-bottom a.is-current{background:var(--green);color:#08110C;font-weight:700}.site-footer{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
  .drawer{max-width:86vw;width:360px}
}
@media(max-width:420px){.shell{width:calc(100% - 32px)}.search-presets{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.number-list{grid-template-columns:1fr}.actions .btn{width:100%}}