*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#0E0E0E;color:#F7F3F1;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.85;overflow-x:hidden}
a{color:#F7F3F1;text-underline-offset:3px}a:hover{color:#fff}
img{max-width:100%}
.site-header{position:sticky;top:0;z-index:9999;width:100%;background:#101010;border-top:3px solid #B4232C;border-bottom:1px solid rgba(180,35,44,.4);box-shadow:0 6px 18px rgba(0,0,0,.4)}
.header-inner{max-width:1080px;min-height:60px;margin:0 auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.site-logo{display:flex;align-items:center;gap:10px;text-decoration:none;min-width:0}.site-logo img{display:block;height:34px;width:auto;max-width:140px;object-fit:contain}.brand-text{font-size:16px;color:#F7F3F1;font-weight:700;white-space:nowrap}
.logo-placeholder{height:34px;width:112px;background:#1A1A1A;border:1px solid rgba(180,35,44,.32);border-radius:4px;display:block}
.nav-core{display:flex;align-items:center;gap:2px;margin-left:auto}.nav-core a{color:#F7F3F1;padding:7px 10px;font-weight:700;text-decoration:none;white-space:nowrap;font-size:14px}.nav-core a.is-current,.nav-core a:hover{color:#FFFFFF;box-shadow:inset 0 -2px 0 #B4232C}
.main-btn{display:inline-flex;align-items:center;justify-content:center;height:40px;min-width:88px;padding:0 14px;background:#B4232C;color:#FFFFFF;border-radius:4px;text-decoration:none;font-weight:700;border:1px solid #C73A43}.main-btn:hover{background:#8C1C23;color:#FFFFFF}
.mobile-head{display:none;width:100%;height:54px;align-items:center;justify-content:space-between;gap:12px}.mobile-menu-btn{background:none;border:0;color:#F4D7D7;font-size:14px;padding:8px 0;cursor:pointer}.mobile-logo{display:flex;align-items:center;justify-content:center;flex:1}.mobile-logo img{height:32px;width:auto;max-width:126px;object-fit:contain}.mobile-login{min-width:64px;height:36px;padding:0 10px}
.mobile-drawer,.drawer-mask{display:none}
.page-wrap{max-width:1080px;margin:0 auto;padding:30px 18px 44px}.reading{max-width:740px;margin-left:auto;margin-right:auto}.reading-wide{max-width:880px;margin-left:auto;margin-right:auto}
.breadcrumb{font-size:14px;color:#A38E8C;margin:0 0 14px}.breadcrumb a{color:#E4D4D2}
h1{font-size:32px;line-height:1.3;margin:0 0 18px;color:#F7F3F1;font-weight:800}h2{font-size:21px;line-height:1.4;color:#F7F3F1;margin:0 0 14px;padding-left:12px;border-left:4px solid #B4232C}h3{font-size:17px;color:#F7F3F1;margin:0 0 8px}p{font-size:16.5px;margin:0 0 14px}.note{font-size:14px;color:#A38E8C}.muted{color:#E4D4D2}.section{margin:28px 0 0}.panel{background:#1A1A1A;border:1px solid rgba(180,35,44,.32);border-radius:4px;padding:20px;box-shadow:0 10px 24px rgba(0,0,0,.32)}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:4px;background:#1A1A1A;aspect-ratio:16/9}.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:#151515;border:1px solid rgba(180,35,44,.18)}.media.content{height:158px;aspect-ratio:auto}.media.feature{height:200px;aspect-ratio:auto}.media.hero{height:174px;max-width:880px;margin:0 auto;aspect-ratio:auto}
.link-list{display:grid;gap:10px;margin:14px 0 0}.link-list a,.text-link{color:#F7F3F1}.link-list a:hover,.text-link:hover{color:#fff}.inline-links{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:14px}.inline-links a{color:#E4D4D2}
.index-lines{display:grid;gap:1px;border:1px solid rgba(180,35,44,.32);background:rgba(180,35,44,.32);border-radius:4px;overflow:hidden}.index-line{display:grid;grid-template-columns:120px 1fr;gap:18px;background:#141414;padding:14px 16px}.index-line strong{font-size:16px}.index-line span{color:#E4D4D2}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}.steps{counter-reset:step;display:grid;gap:12px}.step{background:#1A1A1A;border-left:3px solid #B4232C;padding:14px 16px;border-radius:0 4px 4px 0}.step:before{counter-increment:step;content:counter(step) ". ";font-weight:800;color:#F7F3F1}
ul.clean{margin:10px 0 0;padding-left:21px}ul.clean li{margin:7px 0;color:#E4D4D2}
.site-footer{background:#070707;border-top:1px solid #B4232C;color:#F6EAEA}.footer-inner{max-width:1080px;margin:0 auto;padding:26px 18px 18px}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:26px}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:10px}.footer-brand img{height:34px;width:auto;max-width:140px;object-fit:contain}.footer-links{display:grid;gap:7px}.footer-links a{font-size:14px;color:#E4D4D2;text-decoration:none}.footer-bottom{margin-top:22px;padding-top:14px;border-top:1px solid rgba(180,35,44,.32);font-size:13px;color:#A38E8C}.back-top{position:fixed;right:18px;bottom:18px;width:72px;height:32px;border:0;border-radius:4px;background:#B4232C;color:#fff;z-index:9000;cursor:pointer}.mobile-bottom{display:none}
.faq-list{display:grid;gap:16px}.faq-item{background:#1A1A1A;border:1px solid rgba(180,35,44,.32);padding:18px;border-radius:4px}.faq-item h2{margin-bottom:10px}
.table-like{width:100%;border-collapse:collapse}.table-like th,.table-like td{text-align:left;vertical-align:top;padding:12px;border-bottom:1px solid rgba(180,35,44,.26)}.table-like th{width:160px;color:#F7F3F1}.table-like td{color:#E4D4D2}
@media(max-width:980px){.header-inner{min-height:54px;padding:0 14px}.desktop-head{display:none}.mobile-head{display:flex}.nav-core{display:none}.mobile-drawer{display:block;position:fixed;inset:0 0 0 auto;width:min(82vw,300px);background:#141414;z-index:12000;transform:translateX(105%);transition:transform .2s ease;box-shadow:-18px 0 40px rgba(0,0,0,.45);overflow-y:auto;padding-bottom:22px}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:14px;border-bottom:1px solid rgba(180,35,44,.32)}.drawer-top img{height:34px;max-width:140px;object-fit:contain}.drawer-close{border:0;background:none;color:#F7F3F1;font-size:24px;line-height:1;cursor:pointer}.drawer-links{display:grid;padding:10px 0}.drawer-links a{font-size:16px;color:#F7F3F1;text-decoration:none;padding:10px 18px;border-left:3px solid transparent}.drawer-links a.is-current{color:#fff;border-left-color:#B4232C;background:#1A1A1A}body.drawer-open{overflow:hidden}.page-wrap{padding:24px 14px 78px}h1{font-size:27px}h2{font-size:19px}.media.hero{height:118px}.media.content{height:150px}.media.feature{height:190px}.two-col,.compare,.footer-grid{grid-template-columns:1fr}.index-line{grid-template-columns:1fr;gap:4px}.back-top{display:none}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;height:52px;background:#0A0A0A;border-top:1px solid #B4232C;z-index:10000;display:grid;grid-template-columns:repeat(4,1fr)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;text-decoration:none;font-size:13px;color:#F7F3F1}.footer-inner{padding-bottom:70px}.table-like th{width:105px}.brand-text{display:none}}
@media(max-width:430px){.mobile-login{min-width:58px;padding:0 8px}.mobile-menu-btn{min-width:58px;text-align:left}.mobile-logo img{max-width:118px}}