:root{--brand:#F45132;--hover:#FF684E;--gold:#D7A84B;--text:#333;--soft:#666;--ink:#1a1a1a;--line:rgba(0,0,0,.08);--muted:#F6F7F9}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.78}a{color:inherit;text-decoration:none}a:hover{color:var(--brand)}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:2px solid var(--brand);outline-offset:3px}.container{width:calc(100% - 48px);max-width:1100px;margin:auto}.site-header{background:#fff;border-bottom:1px solid var(--line)}.topbar{height:72px;display:flex;align-items:center;gap:23px}.brand{display:flex;align-items:center;flex-shrink:0;color:var(--ink)}.brand img{height:36px;width:auto;max-width:145px;object-fit:contain}.brand strong{font-size:26px;white-space:nowrap}.brand strong span{color:var(--brand)}.desktop-links{display:flex;align-items:center;gap:16px;flex:1;justify-content:center;white-space:nowrap}.desktop-links a{font-size:14px;height:72px;display:inline-flex;align-items:center;border-bottom:2px solid transparent}.desktop-links a.is-active{color:#C43A22;border-bottom-color:var(--brand)}.register-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff;border-radius:999px;padding:0 22px;height:42px;min-width:77px;flex-shrink:0;font-size:14px}.register-btn:hover{color:#fff;background:var(--hover)}.topic-strip{background:var(--muted)}.topic-inner{display:flex;align-items:center;gap:26px;min-height:43px}.topic-label{color:#C43A22;font-size:13px;font-weight:700;white-space:nowrap}.topic-inner nav{display:flex;flex-wrap:wrap;gap:24px}.topic-inner a{font-size:13px;color:#555}.topic-inner a:hover{color:var(--brand)}.skip-link{position:absolute;top:-90px;left:10px;background:#fff;padding:10px;z-index:20000}.skip-link:focus{top:10px}.main-content{padding-top:30px;padding-bottom:65px;min-height:60vh}.eyebrow{color:#C43A22;font-size:13px;font-weight:700;letter-spacing:.09em}.page-header{max-width:780px;margin-bottom:28px}.page-header h1{font-size:33px;line-height:1.38;margin:7px 0 12px;color:var(--ink)}.page-header p{color:var(--soft);margin:0}.breadcrumb{font-size:13px;color:#888;margin-bottom:22px}.breadcrumb a{color:#666}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:20px}.section-heading h2{margin:0;font-size:25px;color:var(--ink)}.section-heading a,.text-link{color:#C43A22;font-size:14px}.home-section{margin-top:38px}.hero{display:grid;grid-template-columns:58% 1fr;gap:26px;align-items:center}.hero .media{height:250px}.hero h1{font-size:36px;line-height:1.35;margin:8px 0 12px;color:var(--ink)}.hero p{margin:0 0 10px;color:var(--soft)}.hot-reading{margin:12px 0 0;padding-left:18px;font-size:14px}.hot-reading li{margin:4px 0}.four-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.card{border:1px solid var(--line);border-radius:13px;padding:20px;min-width:0;background:#fff}.card h3{font-size:19px;line-height:1.4;margin:3px 0 10px;color:var(--ink)}.card p{font-size:15px;color:#666;margin:0 0 14px}.card a:last-child{color:#C43A22;font-size:14px}.number-tag{color:var(--gold);font-size:13px;font-weight:800}.split-section{display:grid;grid-template-columns:1.08fr .92fr;gap:26px;align-items:start}.feature-panel{padding:23px;background:var(--muted);border-radius:12px}.feature-panel h3{font-size:22px;color:var(--ink);margin:0 0 12px}.feature-panel p{margin:0 0 13px}.compact-list{list-style:none;margin:0;padding:0}.compact-list li{border-bottom:1px solid var(--line);padding:12px 0}.compact-list a{font-weight:700;color:var(--ink)}.compact-list p{color:var(--soft);margin:3px 0 0;font-size:14px}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:12px;background:#F6F7F9}.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:linear-gradient(145deg,#f6f7f9,#edf0f3)}.media-16x9{aspect-ratio:16/9}.media-3x4{aspect-ratio:3/4}.visual-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.visual-item h3{font-size:17px;margin:10px 0 2px}.visual-item p{font-size:14px;color:var(--soft);margin:0}.visual-item .media{max-height:220px}.directory-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.directory-item{border:1px solid var(--line);padding:12px;border-radius:12px;min-width:0}.directory-item .media{height:145px}.directory-item h3{font-size:16px;margin:10px 0 3px}.directory-item p{font-size:13px;color:var(--soft);margin:0}.numbered-list{padding:0;margin:0;list-style:none}.numbered-list li{display:grid;grid-template-columns:54px 1fr;gap:12px;border-bottom:1px solid var(--line);padding:15px 0}.numbered-list .num{font-size:24px;font-weight:800;color:var(--gold)}.numbered-list h3{font-size:18px;margin:0;color:var(--ink)}.numbered-list small{color:#C43A22}.numbered-list p{margin:5px 0 0;color:#666;font-size:15px}.article-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(220px,3fr);gap:36px}.article-body{min-width:0}.article-body section{margin-bottom:28px}.article-body h2{font-size:23px;line-height:1.4;color:var(--ink);margin:0 0 13px}.article-body p{margin:0 0 16px}.article-sidebar{align-self:start;background:var(--muted);padding:22px;border-radius:12px}.article-sidebar h2{font-size:18px;margin:0 0 14px}.article-sidebar a{display:block;padding:9px 0;border-bottom:1px solid var(--line);font-size:14px}.article-image{margin:0 0 25px}.article-image .media{max-height:230px}.related-links{margin:30px 0 0;border-top:1px solid var(--line);padding-top:18px}.related-links h2{font-size:20px}.related-links a{display:inline-block;margin:5px 15px 5px 0;color:#C43A22}.faq-list details{border-bottom:1px solid var(--line);padding:13px 0}.faq-list summary{cursor:pointer;font-weight:700;color:var(--ink)}.faq-list p{margin:8px 0;color:var(--soft)}.notice{background:var(--muted);border-left:3px solid var(--gold);padding:14px 18px;font-size:14px;margin-top:30px}.group-title{font-size:23px;border-bottom:1px solid var(--line);padding-bottom:10px;margin:35px 0 15px}.group-desc{color:var(--soft);font-size:15px}.site-footer{background:#1a1a1a;color:#f5f5f5;padding:48px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:20px}.footer-grid h3{font-size:15px;margin:0 0 13px}.footer-grid a:not(.footer-brand){display:block;color:#ccc;font-size:13px;margin-bottom:7px}.footer-grid a:hover{color:#fff}.footer-brand{font-size:22px;font-weight:700}.footer-brand small{font-size:11px;font-weight:400;color:var(--gold)}.footer-grid p{color:#bbb;font-size:13px;line-height:1.8}.footer-bottom{border-top:1px solid #444;margin-top:26px;padding-top:17px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#aaa}.menu-toggle,.mobile-bottom,.mobile-drawer,.drawer-mask{display:none}.back-top{position:fixed;right:22px;bottom:23px;border:1px solid var(--line);background:#fff;border-radius:50%;width:42px;height:42px;font-size:21px;color:#C43A22;box-shadow:0 3px 13px #0001;opacity:0;pointer-events:none;transition:opacity .2s}.back-top.visible{opacity:1;pointer-events:auto}
@media(max-width:1120px){.desktop-links{gap:12px}.topbar{gap:15px}.brand img{max-width:125px}.desktop-links a{font-size:13px}}
@media(max-width:980px){.container{width:calc(100% - 40px)}.topbar{height:58px;justify-content:space-between;gap:12px}.desktop-links,.topic-strip{display:none}.brand img{height:28px;max-width:120px}.brand strong{font-size:23px}.register-btn{height:36px;min-width:72px;padding:0 15px}.menu-toggle{width:40px;height:40px;padding:9px 7px;display:flex;flex-direction:column;justify-content:center;gap:5px;border:0;background:none}.menu-toggle span{height:2px;width:24px;background:#222;display:block}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);height:100dvh;background:#FFFFFF;color:#1A1A1A;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;overflow-y:auto;visibility:hidden}.mobile-drawer.is-open{transform:translateX(0);visibility:visible}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:11000;opacity:0;pointer-events:none}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}body.drawer-open{overflow:hidden}.drawer-top{display:flex;justify-content:space-between;align-items:center;padding:12px 17px;border-bottom:1px solid var(--line);font-weight:700}.drawer-close{border:0;background:#f5f5f5;border-radius:50%;width:36px;height:36px;font-size:27px;line-height:1}.drawer-group{padding:11px 18px}.drawer-group h3{font-size:13px;color:#C43A22;margin:8px 0}.drawer-group a{display:block;min-height:40px;padding:7px 0;border-bottom:1px solid #eee;font-size:15px}.mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;height:61px;z-index:100;background:#fff;border-top:1px solid #e7e7e7}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:14px}.mobile-bottom .bottom-register{color:#F45132;font-weight:700}.main-content{padding-bottom:90px}.back-top{bottom:76px}.four-grid,.directory-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.visual-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:minmax(0,1fr) 230px;gap:22px}.footer-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.footer-grid>div:first-child{grid-column:span 3}.hero h1{font-size:31px}}
@media(max-width:700px){.container{width:calc(100% - 32px)}.hero,.split-section,.article-layout{grid-template-columns:1fr}.hero .media{height:175px}.hero h1{font-size:28px}.section-heading h2{font-size:21px}.page-header h1{font-size:27px}.article-body h2{font-size:20px}.article-body p{font-size:15px;line-height:1.8}.main-content{padding-top:22px}.visual-grid{grid-template-columns:1fr}.visual-item .media{max-height:165px}.article-sidebar{order:2}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid>div:first-child{grid-column:span 2}.footer-bottom{flex-direction:column;gap:5px}.home-section{margin-top:31px}.card{padding:17px}}
@media(max-width:375px){.four-grid{grid-template-columns:1fr}.directory-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.directory-item{padding:8px}.directory-item .media{height:112px}.directory-item h3{font-size:14px}.hero .media{height:155px}.topbar{gap:4px}.numbered-list{font-size:14px}.numbered-list li{grid-template-columns:38px 1fr}.numbered-list .num{font-size:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.mobile-drawer,.back-top{transition:none}}