:root{--bg:#151A23;--panel:#1B2130;--panel2:#202738;--panel3:#252D40;--gold:#F1DCA3;--gold2:#E3C98F;--text:#E8ECF5;--muted:#B8C0D3;--soft:#8F98AD;--line:rgba(241,220,163,.14);--footer:#0E121A;--shadow:0 14px 36px rgba(0,0,0,.28)}
*{box-sizing:border-box}html{scroll-behavior:smooth;max-width:100%;overflow-x:hidden}body{margin:0;max-width:100%;overflow-x:hidden;background:var(--bg);color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:17px;line-height:1.8}body.menu-open{overflow:hidden}img,.media,.card,.grid>*{max-width:100%}a{color:var(--gold);text-decoration:none}a:hover{color:var(--gold2)}button,input,textarea{font:inherit}.skip-link{position:fixed;left:16px;top:10px;z-index:12000;background:var(--gold);color:var(--bg);padding:8px 14px;border-radius:8px;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}:focus-visible{outline:2px solid var(--gold);outline-offset:3px}.shell{width:min(1280px,calc(100% - 44px));margin:0 auto}.article-shell{width:min(860px,calc(100% - 44px));margin:0 auto}.section{padding:86px 0}.section-tight{padding:58px 0}.section-alt{background:var(--panel)}.eyebrow{margin:0 0 10px;color:var(--gold);font-size:14px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.section-title,h2{margin:0 0 18px;color:var(--gold);font-size:clamp(28px,3vw,36px);line-height:1.25}.section-intro{max-width:760px;margin:0 0 34px;color:var(--muted)}h1{margin:0;color:var(--gold);font-size:clamp(42px,5vw,56px);line-height:1.12;letter-spacing:-.02em}h3{margin:0 0 12px;color:var(--gold);font-size:22px;line-height:1.35}p{margin:0 0 18px}.muted{color:var(--muted)}.soft{color:var(--soft)}.lead{font-size:19px;color:var(--muted);max-width:820px}.gold{color:var(--gold)}.text-link{display:inline-flex;align-items:center;gap:7px;font-weight:800}.text-link::after{content:"→"}.btn{min-height:44px;padding:0 20px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:var(--gold);color:var(--bg);font-weight:800;box-shadow:0 10px 24px rgba(241,220,163,.12)}.btn:hover{background:var(--gold2);color:var(--bg)}.btn-secondary{background:transparent;color:var(--gold);border:1px solid var(--line);box-shadow:none}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.divider{height:1px;background:var(--line);margin:28px 0}.tag{display:inline-flex;padding:4px 10px;border:1px solid var(--line);border-radius:999px;color:var(--gold);font-size:13px;font-weight:700}
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.drawer-overlay{position:fixed;inset:0;z-index:10020;background:rgba(0,0,0,.62);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility .2s ease}.drawer-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.mobile-drawer{position:fixed;left:0;top:0;bottom:0;z-index:10030;width:min(84vw,320px);background:#1B2130;box-shadow:20px 0 60px rgba(0,0,0,.42);transform:translateX(-105%);visibility:hidden;pointer-events:none;transition:transform .25s ease,visibility .25s ease;display:flex;flex-direction:column}.mobile-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{min-height:74px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.drawer-close{width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:var(--panel2);color:var(--gold);font-size:28px;line-height:1;cursor:pointer}.drawer-scroll{overflow-y:auto;padding:14px 0 30px}.drawer-group{padding:12px 16px}.drawer-group h2{font-size:14px;text-transform:uppercase;letter-spacing:.12em;color:var(--soft);margin:0 0 8px}.drawer-group a{display:block;padding:10px 12px;border-left:3px solid transparent;border-radius:0 8px 8px 0;color:var(--muted);font-weight:700}.drawer-group a.active,.drawer-group a:hover{color:var(--gold);border-left-color:var(--gold);background:rgba(241,220,163,.05)}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:16px;background:#151A23;border:1px solid rgba(241,220,163,.08)}.media>img{position:absolute;inset:0;width:100%;height:100%;max-width:100%;object-fit:contain;object-position:center center;display:block}.media-ph{width:100%;height:100%;background:linear-gradient(160deg,#202738,#151A23)}.media-card{aspect-ratio:16/10;max-height:200px}.media-block{aspect-ratio:16/10;max-height:280px}.media-banner{aspect-ratio:16/6;min-height:240px;max-height:340px}.media-app{aspect-ratio:9/16;max-width:260px;max-height:420px;margin:0 auto}.hero-carousel{position:relative;background:var(--footer);border-bottom:1px solid var(--line)}.carousel-shell{width:min(1280px,100%);margin:0 auto;position:relative}.hero-slide{display:none}.hero-slide.active{display:block}.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:46px;height:46px;border:1px solid var(--line);border-radius:50%;background:rgba(14,18,26,.82);color:var(--gold);cursor:pointer;font-size:25px}.carousel-prev{left:18px}.carousel-next{right:18px}.carousel-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px;z-index:3}.carousel-dots button{width:10px;height:10px;padding:0;border:1px solid var(--gold);border-radius:50%;background:rgba(21,26,35,.72);cursor:pointer}.carousel-dots button.active{background:var(--gold)}
.page-hero{padding:86px 0 62px;background:linear-gradient(180deg,#171D29 0%,#151A23 100%);border-bottom:1px solid var(--line)}.page-hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);align-items:center;gap:46px}.page-hero-copy .lead{margin-top:20px}.home-intro{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(300px,.95fr);gap:44px;align-items:center}.two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.three-col{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.four-col{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.grid{display:grid}.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 14px 36px rgba(0,0,0,.18);transition:transform .18s ease,border-color .18s ease}.card:hover{transform:translateY(-3px);border-color:rgba(241,220,163,.28)}.card p:last-child{margin-bottom:0}.media-card-wrap{padding:0;overflow:hidden}.media-card-wrap .card-body{padding:22px}.service-number{display:block;color:var(--gold);font-size:14px;font-weight:900;letter-spacing:.12em;margin-bottom:12px}.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.quick-item{padding:20px;background:var(--panel);border:1px solid var(--line);border-radius:14px}.quick-item h3{font-size:19px}.quick-item p{font-size:15px;color:var(--muted);line-height:1.7}.layer-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.layer-item{padding:24px;border-left:3px solid var(--gold);background:var(--panel);border-radius:0 16px 16px 0}.feature-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.feature-panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden}.feature-panel .copy{padding:26px}.steps{counter-reset:step;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}.step{counter-increment:step;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px}.step::before{content:"0" counter(step);display:block;color:var(--gold);font-weight:900;margin-bottom:10px}.feedback-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.feedback-item{margin:0;padding:22px;background:var(--panel2);border-left:3px solid var(--gold);border-radius:0 14px 14px 0;color:var(--muted)}.notice{padding:24px 26px;background:rgba(241,220,163,.055);border:1px solid var(--line);border-radius:16px}.notice strong{color:var(--gold)}.link-row{display:flex;flex-wrap:wrap;gap:10px 18px}.link-row a{font-weight:800}.prose h2{margin-top:42px}.prose h3{margin-top:28px}.prose ul,.prose ol{padding-left:1.35em;color:var(--muted)}.prose li{margin:8px 0}.prose p{color:var(--muted)}.prose strong{color:var(--text)}.info-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:36px;align-items:start}.aside-box{position:sticky;top:132px;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px}.aside-box h2{font-size:24px}.aside-box nav a{display:block;padding:8px 0;border-bottom:1px solid rgba(241,220,163,.08)}.aside-box nav a:last-child{border-bottom:0}.faq-list{display:grid;gap:12px}.faq-item{border:1px solid var(--line);border-radius:14px;background:var(--panel);overflow:hidden}.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:18px 20px;border:0;background:transparent;color:var(--gold);font-weight:800;cursor:pointer}.faq-question::after{content:"+";font-size:22px}.faq-question[aria-expanded="true"]::after{content:"−"}.faq-answer{padding:0 20px 18px;color:var(--muted)}.faq-answer p:last-child{margin-bottom:0}.mini-list{display:grid;gap:12px}.mini-list a{display:flex;justify-content:space-between;gap:12px;padding:14px 16px;background:var(--panel);border:1px solid var(--line);border-radius:12px}.mini-list a::after{content:"→"}.quote-note{padding:24px;margin:0;background:var(--panel2);border-radius:16px;color:var(--muted);border:1px solid var(--line)}
.site-footer{background:var(--footer);color:#D5DBEA;padding:64px 0 110px;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:34px}.footer-brand p{max-width:320px;margin-top:18px;color:var(--muted);font-size:15px}.footer-links{display:flex;flex-direction:column;gap:8px}.footer-links h2{font-size:17px;margin:0 0 8px;color:var(--gold)}.footer-links a{color:#D5DBEA;font-size:15px}.footer-links a:hover{color:var(--gold)}.footer-bottom{margin-top:38px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:24px;color:var(--soft);font-size:14px}.footer-bottom p{margin:0}.floating-tools{position:fixed;right:14px;top:50%;transform:translateY(-50%);z-index:9000;width:112px;padding:8px;background:rgba(27,33,48,.96);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:6px}.floating-tools a,.floating-tools button{min-height:40px;display:flex;align-items:center;justify-content:center;padding:8px;border:0;border-radius:10px;background:transparent;color:var(--gold);font-size:13px;font-weight:800;cursor:pointer}.floating-tools .floating-primary{background:var(--gold);color:var(--bg)}.floating-tools a:hover,.floating-tools button:hover{background:var(--panel3)}.floating-tools .floating-primary:hover{background:var(--gold2)}.mobile-bottom{display:none}
@media(max-width:1120px){.header-inner{gap:14px}.nav-core{gap:11px}.nav-core a{font-size:15px}.header-reg-btn{min-width:88px;padding:0 16px}.quick-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.four-col{grid-template-columns:repeat(2,minmax(0,1fr))}.steps{grid-template-columns:repeat(3,minmax(0,1fr))}.floating-tools{display:none}.channel-bar{display:none}}
@media(max-width:980px){.header-inner{display:grid;grid-template-columns:88px 1fr 88px;gap:8px;padding:0 14px}.menu-toggle{display:block}.site-logo{justify-self:center}.site-logo img{max-width:130px;height:42px}.header-reg-btn{justify-self:end;min-width:84px;height:42px;padding:0 12px;font-size:14px}.nav-core{display:none}.page-hero-grid,.home-intro,.info-grid{grid-template-columns:1fr}.page-hero-grid{gap:30px}.aside-box{position:static}.three-col{grid-template-columns:repeat(2,minmax(0,1fr))}.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.steps{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-bottom{flex-direction:column}}
@media(max-width:767px){body{font-size:16px;line-height:1.78;padding-bottom:66px}.shell,.article-shell{width:min(100% - 30px,1280px)}.section{padding:56px 0}.section-tight{padding:46px 0}.page-hero{padding:54px 0 44px}h1{font-size:clamp(30px,9vw,38px)}.section-title,h2{font-size:clamp(24px,7vw,28px)}h3{font-size:20px}.lead{font-size:17px}.header-inner{min-height:66px;grid-template-columns:78px 1fr 78px;padding:0 10px}.menu-toggle{width:40px;height:40px}.site-logo img{height:38px;max-width:112px}.logo-placeholder{width:108px;height:36px}.header-reg-btn{min-width:76px;height:40px;padding:0 10px;font-size:13px}.drawer-head{min-height:66px}.media-banner{min-height:150px;max-height:200px}.media-card{max-height:150px}.media-block{max-height:190px}.media-app{max-width:190px;max-height:320px}.carousel-arrow{width:38px;height:38px;font-size:21px}.carousel-prev{left:8px}.carousel-next{right:8px}.carousel-dots{bottom:9px}.two-col,.three-col,.four-col,.feature-pair,.feedback-list,.layer-list,.quick-grid,.steps{grid-template-columns:1fr}.card,.quick-item,.layer-item{padding:20px}.feature-panel .copy{padding:21px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9500;display:grid;grid-template-columns:repeat(4,1fr);background:#151A23;border-top:1px solid rgba(241,220,163,.32);padding-bottom:max(0px,env(safe-area-inset-bottom))}.mobile-bottom a{min-height:58px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px;font-weight:800}.mobile-bottom a.active,.mobile-bottom a:hover{color:var(--gold)}.site-footer{padding:54px 0 86px}.footer-grid{grid-template-columns:1fr;gap:26px}.footer-bottom{margin-top:28px}.actions .btn{width:100%}}
@media(max-width:390px){.header-inner{grid-template-columns:72px 1fr 72px}.site-logo img{max-width:104px}.header-reg-btn{min-width:70px;padding:0 8px;font-size:12px}.menu-toggle{width:38px;height:38px}.carousel-arrow{width:34px;height:34px}.shell,.article-shell{width:calc(100% - 28px)}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}.card:hover{transform:none}}