*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:#333;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.78}a{color:inherit;text-decoration:none}a:hover{color:#c45a12}button{font:inherit}img{max-width:100%}.wrap{width:calc(100% - 48px);max-width:1100px;margin:0 auto}.site-header{background:white;border-bottom:1px solid #ededed}.top-bar{height:70px;display:flex;align-items:center;gap:17px}.site-logo{display:flex;align-items:center;flex:0 0 auto;gap:7px;font-size:24px;line-height:1;font-weight:800;color:#1a1a1a}.logo-text{white-space:nowrap}.brand-intro{display:flex;flex-direction:column;line-height:1.35;gap:3px;margin-left:12px}.brand-intro strong{font-size:15px;letter-spacing:2px}.brand-intro small{font-size:12px;color:#666}.register{margin-left:auto;display:flex;align-items:center;justify-content:center;min-width:92px;height:42px;border-radius:999px;background:linear-gradient(90deg,#ff8a00,#ffc44d);color:#302313;font-weight:700}.register:hover{color:#1a1a1a}.main-nav{border-top:1px solid #f1f1f1}.nav-links{display:flex;justify-content:space-between;align-items:center;height:49px;gap:8px}.nav-links a{font-size:15px;font-weight:700;white-space:nowrap;display:flex;align-items:center;height:100%;border-bottom:2px solid transparent;padding:0 8px}.nav-links a.active{color:#c45a12;border-bottom-color:#ff8a00}.quickbar{background:#f6f7f9}.quick-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:14px 28px;min-height:42px;padding:6px 0}.quick-links a{font-size:13px;color:#555}.quick-links a.active{color:#c45a12}.main-content{padding:25px 0 60px;min-height:55vh}h1,h2,h3{color:#1a1a1a;line-height:1.4}h1{font-size:32px;margin:12px 0 14px}h2{font-size:24px;margin:0 0 18px}h3{font-size:19px;margin:0 0 10px}p{margin:0 0 16px}.eyebrow{display:block;font-size:13px;letter-spacing:.12em;font-weight:700;color:#c45a12}.lead{font-size:16px;color:#555;max-width:900px;line-height:1.85}.page-hero{border-bottom:1px solid #ededed;padding:9px 0 22px;margin-bottom:28px}.breadcrumbs{color:#777;font-size:13px;margin-bottom:9px}.breadcrumbs a{color:#777}.topic-links{display:flex;gap:10px 18px;flex-wrap:wrap;margin-top:16px;font-size:14px}.topic-links a{color:#a84c0b;border-bottom:1px solid #f0cfb4}.content-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(245px,3fr);gap:34px;align-items:start}.article-section{padding:0 0 20px;margin-bottom:27px;border-bottom:1px solid #ededed}.article-section h2{font-size:24px;padding-left:13px;border-left:3px solid #ff8a00}.article-section p{line-height:1.85}.sidebox{background:#f6f7f9;border-radius:12px;padding:23px;margin-bottom:20px}.sidebox h2{font-size:18px;margin-bottom:12px}.sidebox a{display:block;border-bottom:1px solid #e3e4e7;padding:9px 0;font-size:14px}.sidebox a:last-child{border:0}.reading-footer{border-top:1px solid #ececec;margin:16px 0 0;padding-top:20px}.reading-footer h2{font-size:20px}.reading-footer a{display:inline-block;margin:0 14px 8px 0;color:#a84c0b}.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-16x9{aspect-ratio:16/9}.media-3x4{aspect-ratio:3/4}.media-placeholder{position:absolute;inset:0;background:#f6f7f9}.logo-media{width:48px;height:34px;aspect-ratio:auto;border-radius:4px}.footer-brand .logo-media{width:45px;height:32px}.feature-hero .media{height:260px;aspect-ratio:auto}.thumb-media{height:205px;aspect-ratio:auto}.app-portrait{max-width:235px;max-height:270px;aspect-ratio:3/4}.site-footer{background:#1a1a1a;color:#f5f5f5;padding:43px 0 18px}.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:35px}.footer-grid section{min-width:0}.footer-grid h2{color:#fff;font-size:16px;margin:0 0 13px}.footer-grid p{color:#ccc;font-size:14px}.footer-grid a{display:block;color:#e5e5e5;font-size:14px;margin:0 0 6px}.footer-brand{display:flex;align-items:center;gap:9px;margin-bottom:12px}.footer-brand strong{font-size:20px}.footer-bottom{border-top:1px solid #383838;padding-top:17px;margin-top:28px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-bottom p{font-size:12px;color:#ddd;margin:0}.menu-toggle,.mobile-drawer,.drawer-mask,.mobile-bottom{display:none}.card{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:13px;padding:21px;min-width:0}.card h3{font-size:18px}.card p{font-size:14px;color:#666}.card a,.text-link{color:#af510a;font-weight:700;font-size:14px}.section{margin:38px 0}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.section-heading h2{margin:0}.section-heading a{color:#a84c0b;font-size:14px}.category-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px}.hero-grid{display:grid;grid-template-columns:minmax(0,62fr) minmax(0,38fr);gap:25px}.hero-list{display:flex;flex-direction:column;gap:9px}.hero-list article{border-bottom:1px solid #eee;padding:0 0 7px}.hero-list h3{font-size:17px;margin-bottom:6px}.hero-list p{font-size:13px;line-height:1.7;color:#666;margin-bottom:4px}.split-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}.simple-list{list-style:none;padding:0;margin:0}.simple-list li{padding:13px 0;border-bottom:1px solid #ebebeb}.simple-list a{font-weight:700}.simple-list span{display:block;color:#666;font-size:14px;margin-top:4px}.visual-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:21px}.visual-grid article h3{margin:12px 0 4px}.visual-grid article p{font-size:14px;color:#666}.brand-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.brand-card{border:1px solid rgba(0,0,0,.08);border-radius:11px;padding:14px;min-width:0}.brand-card h3{font-size:16px;margin:9px 0 5px}.brand-card p{font-size:13px;color:#666;margin-bottom:5px}.brand-card .media{width:64px;height:48px;aspect-ratio:auto}.full-brand-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.full-brand-grid .brand-card{padding:18px}.full-brand-grid .brand-card p{font-size:14px}.faq-list details{padding:14px 0;border-bottom:1px solid #e9e9e9}.faq-list summary{font-weight:700;cursor:pointer;color:#222}.faq-list details p{margin-top:9px;color:#555}.muted-panel{background:#f6f7f9;padding:24px;border-radius:12px}.news-list article{padding:17px 0;border-bottom:1px solid #eaeaea}.news-list h3{margin-bottom:6px}.news-list p{font-size:14px;color:#666;margin:0}.app-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:35px;align-items:start}.mobile-bottom{display:none}
@media(max-width:980px){.wrap{width:calc(100% - 40px)}.main-nav,.quickbar,.brand-intro{display:none}.top-bar{height:58px}.site-logo{position:absolute;left:50%;transform:translateX(-50%);font-size:21px}.site-logo .logo-media{width:39px;height:28px}.register{height:36px;min-width:72px;font-size:14px}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;width:40px;height:42px;padding:9px 7px;border:0;background:transparent;cursor:pointer}.menu-toggle span{height:2px;width:23px;background:#222}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);height:100dvh;background:#fff;color:#1a1a1a;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;overflow-y:auto}.mobile-drawer.is-open{transform:translateX(0)}.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-head{height:59px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #eee}.drawer-close{width:42px;height:42px;font-size:27px;border:0;background:transparent}.drawer-home,.drawer-group a{display:block;min-height:42px;padding:8px 22px;font-size:15px}.drawer-home{font-weight:700}.drawer-group{padding:6px 0 10px;border-top:1px solid #eee}.drawer-group h2{font-size:13px;letter-spacing:.06em;padding:3px 22px;margin:0;color:#999}.drawer-group a.active{color:#c45a12}.mobile-bottom{position:fixed;bottom:0;left:0;right:0;height:62px;background:#fff;border-top:1px solid #e5e5e5;display:grid;grid-template-columns:repeat(4,1fr);z-index:1000;padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:12px;line-height:1.35}.mobile-bottom span{font-size:19px;color:#c45a12}.main-content{padding-bottom:92px}.site-footer{padding-bottom:84px}.content-layout{grid-template-columns:minmax(0,1fr)}.sidebar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.brand-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:650px){.wrap{width:calc(100% - 30px)}body{font-size:15px}.main-content{padding-top:20px}h1{font-size:27px}h2,.article-section h2{font-size:21px}h3{font-size:17px}.hero-grid,.split-grid,.visual-grid,.app-layout{grid-template-columns:minmax(0,1fr)}.feature-hero .media{height:175px}.thumb-media{height:160px}.brand-grid,.full-brand-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.sidebar{grid-template-columns:minmax(0,1fr)}.footer-grid{gap:24px}.footer-grid p{font-size:13px}.page-hero{margin-bottom:24px}.section{margin:30px 0}.app-portrait{max-height:220px;max-width:180px}.card{padding:16px}}
@media(max-width:355px){.site-logo{gap:3px;font-size:18px}.site-logo .logo-media{width:33px}.category-grid{grid-template-columns:1fr}.brand-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.mobile-drawer{transition:none}}
