*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:#333;font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}img{max-width:100%}a{color:inherit;text-decoration:none}a:hover{color:#f45132}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid #d7a84b;outline-offset:3px}.wrap{width:calc(100% - 48px);max-width:1160px;margin:0 auto}.skip{position:absolute;left:8px;top:-100px;background:#fff;z-index:15000;padding:8px}.skip:focus{top:8px}.topbar{background:#fff;border-bottom:1px solid #eee}.top-inner{min-height:70px;display:flex;align-items:center;gap:22px}.menu-toggle{width:42px;height:42px;padding:10px;background:transparent;border:0;display:flex;flex-direction:column;justify-content:center;gap:5px;flex:none}.menu-toggle span{display:block;width:21px;height:2px;background:#333}.brand{display:flex;align-items:center;flex:none;min-width:104px}.brand img{display:block;width:auto;height:auto;max-width:135px;max-height:37px;object-fit:contain}.brand strong{font-size:24px;color:#191919;white-space:nowrap}.brand strong span{color:#f45132}.primary{display:flex;align-items:stretch;gap:26px;margin-left:12px;white-space:nowrap;align-self:stretch}.primary a{display:flex;align-items:center;border-bottom:2px solid transparent;font-size:14px}.primary a.active{color:#f45132;border-color:#f45132}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-width:78px;height:40px;padding:0 20px;border-radius:999px;background:#f45132;color:#fff;font-weight:700;white-space:nowrap;margin-left:auto}.main-btn:hover{color:white;background:#ff684e}.channel{background:#f6f7f9;border-bottom:1px solid #eceef0}.channel-inner{display:flex;align-items:center;overflow-x:auto;min-height:44px;white-space:nowrap;gap:0;scrollbar-width:thin}.channel a{font-size:13px;color:#666;padding:0 15px;border-right:1px solid #dcdfe3;line-height:18px;flex:none}.channel a:first-child{padding-left:0}.channel a.active{color:#f45132}.main-content{padding-top:30px;padding-bottom:55px;min-height:60vh}h1,h2,h3{line-height:1.4;color:#1a1a1a;margin:0 0 16px}h1{font-size:32px}h2{font-size:24px}h3{font-size:19px}p{margin:0 0 17px}.eyebrow{display:inline-block;font-size:13px;font-weight:700;color:#f45132;letter-spacing:.06em;margin-bottom:9px}.intro{max-width:820px;font-size:17px;color:#555}.page-hero{padding:15px 0 20px;border-bottom:1px solid #ececec;margin-bottom:28px}.page-hero .intro{margin-bottom:0}.article-layout{display:grid;grid-template-columns:minmax(0,780px) minmax(220px,1fr);gap:44px}.article-body{min-width:0}.article-body section{margin:0 0 34px}.article-body p{font-size:16px;line-height:1.85}.article-body h2{padding-left:14px;border-left:3px solid #f45132}.aside-box{padding:20px;background:#f6f7f9;border-radius:12px;align-self:start}.aside-box h2{font-size:19px}.aside-box a{display:block;border-bottom:1px solid #e3e4e7;padding:11px 0;font-size:14px}.aside-box a:last-child{border-bottom:0}.related{margin-top:30px;border-top:1px solid #e5e5e5;padding-top:24px}.related h2{font-size:21px}.link-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.link-card{border:1px solid #e8e9eb;border-radius:12px;padding:18px;display:flex;flex-direction:column;position:relative;min-height:110px;box-shadow:0 2px 8px rgba(0,0,0,.025)}.link-card strong{font-size:17px;color:#222}.link-card span{font-size:13px;color:#777;margin-top:7px;line-height:1.6;padding-right:12px}.link-card b{position:absolute;right:15px;top:14px;color:#f45132;font-size:22px}.section{margin:40px 0}.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid #e8e8e8;margin-bottom:22px;padding-bottom:12px}.section-head h2{margin:0}.section-head a{color:#f45132;font-size:14px;white-space:nowrap}.lead{max-width:850px;color:#555}.spotlight{display:grid;grid-template-columns:minmax(0,58fr) minmax(0,42fr);gap:25px}.spotlight-items{display:flex;flex-direction:column;justify-content:center}.spotlight-items article{padding:12px 0;border-bottom:1px solid #eee}.spotlight-items h3{margin:0 0 6px}.spotlight-items p{font-size:14px;color:#666;margin:0}.home-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:34px}.home-grid>div,.home-grid>article{min-width:0}.read-index{counter-reset:reading}.read-index a{display:block;border-bottom:1px solid #eee;padding:12px 5px;font-size:15px}.read-index a:before{counter-increment:reading;content:counter(reading,decimal-leading-zero);display:inline-block;color:#d7a84b;font-weight:700;margin-right:15px}.gallery-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.gallery-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.figure{margin:0 0 14px;min-width:0}.figure figcaption{font-size:13px;color:#666;line-height:1.65;margin:8px 1px 0}.media{display:flex;align-items:center;justify-content:center;width:100%;max-width:100%;min-width:0;overflow:hidden;border-radius:12px;background:#f6f7f9}.media img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;object-position:center}.media-natural{min-height:110px}.media-natural img{width:100%;height:auto;max-height:280px;object-fit:contain}.media-wide{aspect-ratio:16/9}.media-banner{aspect-ratio:16/7}.media-square{aspect-ratio:1/1}.media-portrait{aspect-ratio:3/4}.media-device{aspect-ratio:9/16;max-height:330px}.media-placeholder{width:100%;height:100%;min-height:100px;background:#f6f7f9}.gallery-grid .media-square{max-height:160px}.gallery-grid .media-natural img{max-height:170px}.spotlight .media-banner{max-height:290px}.illustrated{display:grid;grid-template-columns:1fr 220px;gap:25px;align-items:center}.divider-list{border-top:1px solid #ededed}.divider-list article{padding:15px 0;border-bottom:1px solid #ededed}.divider-list h3{margin:0 0 6px}.divider-list p{color:#666;font-size:14px;margin:0}.faq-list details{padding:14px 0;border-bottom:1px solid #e4e4e4}.faq-list summary{font-weight:700;cursor:pointer;color:#222}.faq-list p{margin:12px 0 0}.notice{background:#f6f7f9;border-left:3px solid #d7a84b;padding:17px 20px;border-radius:0 10px 10px 0}.site-footer{background:#1a1a1a;color:#f5f5f5}.foot-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px;padding:40px 0}.foot-grid h2{color:#fff;font-size:17px;margin:0 0 13px}.foot-grid a:not(.foot-logo){display:block;color:#d4d4d4;font-size:14px;margin:6px 0}.foot-grid a:hover{color:#ff684e}.foot-grid p{color:#ccc;font-size:14px;line-height:1.75}.foot-logo{font-size:23px;color:#fff;font-weight:800}.foot-logo img{width:auto;height:auto;max-width:135px;max-height:37px;object-fit:contain}.foot-base{display:flex;justify-content:space-between;gap:25px;border-top:1px solid #444;padding:16px 0 25px;color:#c8c8c8;font-size:12px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:360px;max-width:84vw;height:100dvh;background:#fff;z-index:12000;overflow-y:auto;transform:translateX(-105%);visibility:hidden;pointer-events:none;transition:transform .2s ease,visibility .2s}.mobile-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.38);z-index:11000;opacity:0;pointer-events:none}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.drawer-open{overflow:hidden}.drawer-head{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid #eee}.drawer-head strong{font-size:17px}.drawer-close{border:0;background:transparent;font-size:30px;line-height:1;width:42px;height:42px}.drawer-group{padding:12px 20px;border-bottom:1px solid #f0f0f0}.drawer-group h2{color:#999;font-size:13px;margin:0 0 5px}.drawer-group a{display:block;min-height:40px;padding:7px 0;font-size:15px}.drawer-group a.active{color:#f45132}.bottom-nav{display:none}.backtop{position:fixed;right:22px;bottom:22px;background:#fff;color:#f45132;border:1px solid #ddd;border-radius:50%;width:42px;height:42px;box-shadow:0 4px 18px #0001;opacity:0;pointer-events:none;transition:opacity .2s}.backtop.show{opacity:1;pointer-events:auto}@media(max-width:980px){.primary{display:none}.top-inner{min-height:58px;gap:12px}.brand{margin:auto}.brand img{max-height:30px;max-width:112px}.brand strong{font-size:21px}.main-btn{margin-left:0;height:36px;min-width:72px;padding:0 15px;font-size:14px}.mobile-drawer{width:min(84vw,320px)}.bottom-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;min-height:60px;background:#fff;border-top:1px solid #e5e5e5;z-index:8000;padding-bottom:env(safe-area-inset-bottom)}.bottom-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:12px;color:#666;line-height:1.3}.bottom-nav span{font-size:21px;line-height:24px}.bottom-nav a.active{color:#f45132}.site-footer{padding-bottom:70px}.backtop{bottom:78px}.wrap{width:calc(100% - 40px)}.article-layout{grid-template-columns:minmax(0,1fr);gap:10px}.aside-box{margin-top:10px}.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:650px){body{font-size:15px}.wrap{width:calc(100% - 32px)}.main-content{padding-top:20px;padding-bottom:35px}h1{font-size:26px}h2{font-size:21px}h3{font-size:17px}.intro{font-size:15px}.section{margin:28px 0}.spotlight,.home-grid,.illustrated{grid-template-columns:minmax(0,1fr)}.spotlight .media-banner{max-height:195px}.link-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.link-card{padding:13px;min-height:100px}.link-card strong{font-size:15px}.link-card span{font-size:12px}.gallery-grid,.gallery-grid.two{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.gallery-grid.two.large{grid-template-columns:1fr}.gallery-grid .media-square{max-height:120px}.gallery-grid .media-natural img{max-height:155px}.figure figcaption{font-size:12px}.foot-grid{gap:20px;padding:30px 0}.foot-base{flex-direction:column;gap:6px}.article-body p{font-size:15px}.page-hero{padding-top:6px}.media-device{max-height:260px}}@media(max-width:360px){.top-inner{gap:5px}.brand{min-width:0}.brand strong{font-size:19px}.menu-toggle{width:42px}.main-btn{padding:0 12px}.link-grid{grid-template-columns:1fr}.gallery-grid{gap:9px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.mobile-drawer,.backtop{transition:none}}