*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:#333;font:16px/1.78 Arial,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}a:hover{color:#C45A12}img{max-width:100%}button{font:inherit}h1,h2,h3{color:#1a1a1a;line-height:1.4;margin:0 0 16px}h1{font-size:34px}h2{font-size:24px}h3{font-size:19px}p{margin:0 0 16px}a:focus-visible,button:focus-visible{outline:3px solid #ff8a00;outline-offset:3px}.wrap{max-width:1100px;margin:auto;padding-left:24px;padding-right:24px}.skip-link{position:absolute;z-index:15000;left:10px;top:-50px;padding:8px;background:#fff}.skip-link:focus{top:10px}.site-header{background:white;border-bottom:1px solid #ececec}.masthead{height:70px;display:flex;align-items:center;gap:18px}.brand{display:inline-flex;align-items:center;flex:none}.brand img{height:34px;width:auto;object-fit:contain;max-width:160px}.brand strong,.drawer-brand strong{font-size:25px;letter-spacing:1px;color:#1a1a1a}.brand strong span{color:#e97606}.brand-intro{display:flex;gap:12px;align-items:center;color:#666;font-size:13px}.brand-intro b{font-size:17px;color:#292929;letter-spacing:2px}.register-btn{margin-left:auto;background:linear-gradient(90deg,#FF8A00,#FFC44D);color:#512a00;font-weight:700;padding:6px 25px;min-height:42px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center}.register-btn:hover{color:#1a1a1a}.primary-bar{border-top:1px solid #f0f0f0}.primary-nav{display:flex;align-items:stretch;justify-content:space-between;height:49px;white-space:nowrap;gap:14px}.primary-nav a{display:flex;align-items:center;position:relative;font-size:15px;padding:0 7px}.primary-nav a.active{color:#C45A12;font-weight:bold}.primary-nav a.active:after{content:"";position:absolute;bottom:0;left:6px;right:6px;height:2px;background:#FF8A00}.shortcut-bar{background:#f6f7f9}.shortcut-links{display:flex;gap:26px;align-items:center;min-height:42px;white-space:nowrap}.shortcut-links a{font-size:13px;color:#555}.shortcut-links a.active{color:#c45a12}.site-main{padding-top:30px;padding-bottom:48px}.eyebrow{font-size:13px;color:#b65d0b;letter-spacing:.07em;font-weight:700;margin-bottom:8px}.lead{color:#666;font-size:16px;max-width:850px}.page-hero{padding:4px 0 26px;border-bottom:1px solid #ebebeb;margin-bottom:28px}.page-hero h1{font-size:32px}.topic-links{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:20px;font-size:14px;color:#a15310}.topic-links a{text-decoration:underline;text-decoration-color:#ffcc8a;text-underline-offset:4px}.inner-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(230px,3fr);gap:34px}.article-section{margin:0 0 36px}.article-section h2{padding-left:12px;border-left:3px solid #ff8a00}.article-section p{text-align:justify}.related-panel{background:#f6f7f9;border-radius:12px;padding:20px;position:sticky;top:18px;align-self:start}.related-panel h2{font-size:20px}.related-panel a{display:block;padding:10px 0;border-bottom:1px solid #e5e5e5;font-size:15px}.related-panel a:last-child{border:0}.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:#f6f7f9}.media-16x9{aspect-ratio:16/9}.media-3x4{aspect-ratio:3/4}.hero-feature .media{max-height:265px}.gallery-grid .media{max-height:230px}.app-art .media{max-height:265px}.section-heading{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:17px}.section-heading a{font-size:14px;color:#c45a12}.home-section{padding:30px 0;border-top:1px solid #ededed}.home-hero{margin-bottom:28px}.home-intro{max-width:950px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.62fr) minmax(0,1fr);gap:24px;align-items:start;margin-top:22px}.hero-index a{display:block;padding:12px 0;border-bottom:1px solid #e7e7e7}.hero-index strong{display:block;font-size:17px}.hero-index small{display:block;color:#666;font-size:14px;line-height:1.6}.four-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.two-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.info-card,.panel{border:1px solid rgba(0,0,0,.08);border-radius:12px;padding:20px;background:#fff;min-width:0}.info-card h3{margin-bottom:8px}.info-card p{color:#666;font-size:15px}.text-link{font-size:14px;color:#b55c0b;font-weight:600}.article-list{border-top:1px solid #eee}.article-item{padding:18px 0;border-bottom:1px solid #eee}.article-item h3{margin-bottom:6px}.article-item p{color:#666;font-size:15px;margin-bottom:7px}.split-feature{display:grid;grid-template-columns:1.4fr 1fr;gap:28px}.mini-links a{display:block;padding:10px 0;border-bottom:1px solid #eee}.mini-links strong{display:block}.mini-links span{font-size:14px;color:#666}.numbered{padding-left:24px}.numbered li{margin-bottom:13px}.gallery-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.gallery-item h3{margin:12px 0 6px}.gallery-item p{font-size:14px;color:#666}.brand-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.brand-card{border:1px solid rgba(0,0,0,.08);border-radius:12px;padding:16px;min-width:0}.brand-card .media{max-height:95px}.brand-card h3{font-size:17px;margin:12px 0 8px;overflow-wrap:anywhere}.brand-card p{font-size:14px;color:#555;margin:0}.brand-card .media-placeholder{background:#f6f7f9}.brand-index{grid-template-columns:repeat(2,minmax(0,1fr))}.brand-index .brand-card{display:grid;grid-template-columns:110px minmax(0,1fr);align-items:start;gap:14px}.brand-index .brand-card h3{margin-top:0}.faq-entry{border-bottom:1px solid #eee;padding:16px 0}.faq-entry h2{font-size:20px;margin-bottom:6px}.soft-panel{background:#f6f7f9;border-radius:12px;padding:20px}.notice{padding:18px 20px;border-left:3px solid #ff8a00;background:#f6f7f9;margin:24px 0}.site-footer{background:#1a1a1a;color:#f5f5f5}.site-footer h2{color:#fff;font-size:17px;margin-bottom:10px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:32px;padding-top:42px;padding-bottom:28px}.footer-grid a{display:block;color:#e4e4e4;font-size:14px;padding:4px 0}.footer-grid p{font-size:14px;color:#ddd}.footer-logo img{height:34px;width:auto;object-fit:contain}.footer-logo strong{color:white;font-size:22px}.footer-bottom{border-top:1px solid #444;display:flex;justify-content:space-between;gap:18px;padding-top:18px;padding-bottom:22px;color:#ddd;font-size:13px}.menu-button,.mobile-bottom,.mobile-drawer,.drawer-mask{display:none}.mobile-drawer nav{padding:10px 18px;border-bottom:1px solid #eee}.mobile-drawer nav h3{font-size:15px;color:#b65d0b;margin:6px 0}.mobile-drawer nav a{display:block;min-height:42px;padding:8px 0;border-bottom:1px solid #f5f5f5;font-size:15px}.mobile-drawer nav a.active{color:#c45a12}.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid #eee}.drawer-brand img{max-height:32px;width:auto}.drawer-close{border:0;background:#f6f7f9;border-radius:6px;font-size:28px;min-width:42px;height:42px;cursor:pointer}@media(max-width:1100px){.wrap{padding-left:20px;padding-right:20px}}@media(max-width:980px){.primary-bar,.shortcut-bar,.brand-intro{display:none}.masthead{height:58px;justify-content:space-between}.brand{position:absolute;left:50%;transform:translateX(-50%)}.brand img{height:28px;max-width:142px}.brand strong{font-size:23px}.register-btn{min-height:36px;min-width:72px;padding:4px 14px;margin-left:auto;font-size:14px}.menu-button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;border:0;background:transparent;width:42px;height:42px;cursor:pointer;padding:10px;margin-left:-8px}.menu-button span{height:2px;width:23px;background:#333;border-radius:2px}.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;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}.mobile-bottom{position:fixed;bottom:0;left:0;right:0;z-index:200;display:grid;grid-template-columns:repeat(4,1fr);height:62px;background:#fff;border-top:1px solid #ececec;padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{font-size:12px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:0;color:#555;line-height:1.35}.mobile-bottom a span{font-size:20px}.mobile-bottom a[aria-current=page]{color:#c45a12;font-weight:bold}.site-footer{margin-bottom:62px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.four-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.brand-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.inner-layout{grid-template-columns:minmax(0,1fr)}.related-panel{position:static}.site-main{padding-top:24px}}@media(max-width:600px){.wrap{padding-left:16px;padding-right:16px}.site-main{padding-bottom:32px}.page-hero h1{font-size:27px}.home-hero h1{font-size:28px}.hero-grid,.two-grid,.split-feature,.gallery-grid{grid-template-columns:minmax(0,1fr)}.brand-grid,.brand-index{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.brand-card{padding:12px}.brand-index .brand-card{display:block}.brand-index .brand-card .media{max-height:95px}.four-grid{gap:10px}.info-card{padding:15px}.hero-feature .media{max-height:190px}.gallery-grid .media{max-height:170px}.footer-grid{gap:24px}.footer-bottom{display:block}.footer-bottom span{display:block;padding-bottom:8px}h2{font-size:21px}h3{font-size:17px}body{font-size:15.5px;line-height:1.78}.article-section{margin-bottom:30px}.home-section{padding:24px 0}}@media(max-width:360px){.four-grid{grid-template-columns:1fr}.brand strong{font-size:20px}.brand img{max-width:112px}.register-btn{min-width:72px}.brand-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.mobile-drawer{transition:none}}
