/* 风速档案｜深沥青、雾银与风速红。版式像纵向赛段，不使用通用居中卡片墙。 */
:root{--ink:#101214;--coal:#171A1C;--paper:#F5F1E8;--fog:#B9C0C1;--muted:#828A8C;--red:#FF3D2E;--line:rgba(245,241,232,.16);--serif:"Noto Serif SC",Songti SC,serif;--sans:"Noto Sans SC",PingFang SC,Microsoft YaHei,sans-serif;--mono:ui-monospace,SFMono-Regular,Consolas,monospace;--ease:cubic-bezier(.23,1,.32,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--ink);color:var(--paper);font-family:var(--sans);line-height:1.65;overflow-x:hidden}.site-grain{position:fixed;inset:0;pointer-events:none;z-index:20;opacity:.045;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E")}a{color:inherit;text-decoration:none}button,input{font:inherit}.sr-only{position:absolute;left:-9999px}.site-header{height:76px;padding:0 clamp(18px,5vw,74px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:rgba(16,18,20,.94);backdrop-filter:blur(18px);position:relative;z-index:8}.brand-lockup{display:flex;align-items:center;gap:10px;min-width:176px}.brand-mark{width:41px;height:41px}.brand-word{width:112px;height:auto}.main-nav{display:flex;gap:clamp(15px,2vw,34px);align-items:center}.main-nav a{font-size:13px;color:var(--fog);position:relative;white-space:nowrap}.main-nav a:after{content:"";position:absolute;height:2px;left:0;right:100%;bottom:-7px;background:var(--red);transition:right .2s var(--ease)}.main-nav a:hover{color:var(--paper)}.main-nav a:hover:after{right:0}.menu-toggle{display:none;border:0;background:transparent;width:42px;height:42px;padding:8px}.menu-toggle span{display:block;width:26px;height:2px;background:var(--paper);margin:6px 0}.site-search-wrap{padding:14px clamp(18px,5vw,74px);border-bottom:1px solid var(--line);background:#15181A}.site-search{max-width:1080px;display:flex;align-items:center;gap:10px}.site-search svg{width:20px;fill:none;stroke:var(--fog);stroke-width:1.7}.site-search input{width:clamp(170px,42vw,520px);border:0;outline:0;background:transparent;color:var(--paper);font-size:14px}.site-search input::placeholder{color:#7B8385}.site-search button,.button-solid{border:1px solid var(--red);color:var(--paper);background:var(--red);padding:8px 17px;font-weight:700;font-size:12px;letter-spacing:.05em;transition:transform .16s var(--ease),background .16s var(--ease)}.site-search button:hover,.button-solid:hover{background:#E72D21}.site-search button:active,.button-solid:active{transform:scale(.97)}.search-tip{margin:3px 0 0 30px;font-size:11px;color:var(--muted)}.hero{position:relative;min-height:660px;border-bottom:1px solid var(--line);padding:clamp(80px,12vw,160px) clamp(18px,8vw,130px) 70px;overflow:hidden}.hero-art{position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(16,18,20,.96) 0%,rgba(16,18,20,.83) 37%,rgba(16,18,20,.18) 78%),url('/assets/hero-race.svg');background-position:center;background-size:cover;opacity:.96}.hero-content{position:relative;z-index:1;max-width:680px}.eyebrow{margin:0 0 17px;display:flex;align-items:center;gap:10px;color:var(--fog);font:12px var(--mono);letter-spacing:.12em;text-transform:uppercase}.eyebrow:before{content:"";width:34px;height:2px;background:var(--red)}h1,h2,h3,p{margin-top:0}.hero h1{font:900 clamp(42px,6.4vw,90px)/1.1 var(--serif);letter-spacing:-.07em;margin:0 0 26px;max-width:620px}.hero h1 em{font-style:normal;color:var(--red)}.hero-summary{font-size:17px;color:#D4D9D7;max-width:530px;margin-bottom:30px}.hero-actions{display:flex;gap:12px;align-items:center}.button-outline{padding:8px 17px;border:1px solid rgba(245,241,232,.45);font-size:12px;font-weight:700;letter-spacing:.05em;transition:background .16s var(--ease)}.button-outline:hover{background:rgba(245,241,232,.11)}.hero-meter{position:absolute;z-index:1;right:clamp(20px,5vw,82px);bottom:44px;text-align:right;font:11px var(--mono);letter-spacing:.08em;color:var(--fog)}.hero-meter b{display:block;color:var(--red);font-size:21px}.route-line{height:72px;position:relative;background:var(--paper);overflow:hidden}.route-line:before{content:"";position:absolute;top:33px;left:-2%;width:104%;height:2px;background:var(--red);transform:rotate(-1.5deg)}.route-line:after{content:"00 — 18 — 36 — 52 — 74 — 96 — 120";position:absolute;top:15px;left:6%;right:6%;display:flex;justify-content:space-between;color:var(--ink);font:10px var(--mono);letter-spacing:.2em}.section{padding:clamp(62px,9vw,118px) clamp(18px,8vw,130px);position:relative}.section-light{background:var(--paper);color:var(--ink)}.section-dark{background:var(--ink)}.section-kicker{color:var(--red);font:700 12px var(--mono);letter-spacing:.15em;margin-bottom:13px}.section-title{font:900 clamp(29px,4vw,55px)/1.23 var(--serif);letter-spacing:-.05em;max-width:720px;margin-bottom:18px}.section-intro{max-width:680px;color:#5D6464;font-size:15px}.section-dark .section-intro{color:var(--fog)}.feature-video{margin-top:42px;display:grid;grid-template-columns:1.45fr .88fr;gap:22px;max-width:1220px}.video-stage{min-height:425px;position:relative;overflow:hidden;background:#293035}.video-stage img,.video-card img{width:100%;height:100%;display:block;object-fit:cover}.video-stage:after,.video-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.76));pointer-events:none}.video-meta{position:absolute;z-index:2;left:25px;right:25px;bottom:20px}.video-meta .archive{font:11px var(--mono);color:#E6DDD2;letter-spacing:.12em}.video-meta h3{font:700 26px/1.3 var(--serif);margin:7px 0;color:var(--paper)}.stats{display:flex;gap:14px;flex-wrap:wrap;color:var(--fog);font:11px var(--mono)}.play-button{position:absolute;z-index:3;display:grid;place-items:center;border:1px solid rgba(245,241,232,.7);background:rgba(16,18,20,.5);width:58px;height:58px;border-radius:50%;left:50%;top:50%;transform:translate(-50%,-40%);opacity:0;transition:opacity .2s var(--ease),transform .2s var(--ease)}.play-button:before{content:"";margin-left:4px;border-top:8px solid transparent;border-bottom:8px solid transparent;border-left:12px solid var(--red)}.video-stage:hover .play-button,.video-card:hover .play-button{opacity:1;transform:translate(-50%,-50%)}.side-notes{display:flex;flex-direction:column;gap:14px}.note-card{border-top:2px solid var(--red);padding:22px;background:#E3DED3}.note-card h3{font:800 22px var(--serif);line-height:1.35;margin-bottom:10px}.note-card p{font-size:14px;margin-bottom:15px}.text-link{font-weight:700;font-size:13px;border-bottom:1px solid currentColor}.data-note{background:#25292B;color:var(--paper);padding:25px;flex:1}.data-note .big{font:900 56px/1 var(--serif);letter-spacing:-.08em;color:var(--red);margin:10px 0}.data-note p{font-size:13px;color:var(--fog)}.video-rail{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:35px;max-width:1280px}.video-card{height:280px;position:relative;overflow:hidden;background:#23282B}.video-card img{transition:transform .35s var(--ease)}.video-card:hover img{transform:scale(1.035)}.video-card .video-meta{left:17px;right:17px;bottom:15px}.video-card .video-meta h3{font-size:19px}.video-card .play-button{width:48px;height:48px}.video-card .tag{position:absolute;z-index:3;top:13px;left:13px;background:var(--red);padding:4px 7px;font:10px var(--mono);letter-spacing:.08em}.split-content{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(30px,8vw,125px);align-items:start}.chapter-list{border-top:1px solid rgba(16,18,20,.25)}.chapter{display:grid;grid-template-columns:54px 1fr auto;gap:14px;align-items:center;padding:22px 0;border-bottom:1px solid rgba(16,18,20,.2)}.chapter-no{font:700 12px var(--mono);color:var(--red)}.chapter h3{font:700 19px var(--serif);margin:0}.chapter p{margin:4px 0 0;color:#666;font-size:13px}.chapter a{font-size:12px;font-weight:700}.ai-band{background:#24292B;color:var(--paper);padding:clamp(55px,7vw,90px) clamp(18px,8vw,130px);display:grid;grid-template-columns:1.1fr .9fr;gap:50px}.ai-band .section-title{margin-bottom:20px}.ai-items{display:grid;gap:1px;background:rgba(245,241,232,.14)}.ai-item{background:#24292B;padding:24px 18px;display:grid;grid-template-columns:58px 1fr;gap:15px}.ai-number{font:900 28px var(--serif);color:var(--red)}.ai-item h3{font:700 19px var(--serif);margin-bottom:5px}.ai-item p{margin:0;color:var(--fog);font-size:13px}.community-panels{display:grid;grid-template-columns:1fr 1.2fr;gap:30px;align-items:start}.topic-wall{display:flex;flex-wrap:wrap;gap:9px}.topic-wall a{border:1px solid rgba(16,18,20,.25);padding:10px 13px;font-size:13px;font-weight:700;transition:background .15s var(--ease),color .15s var(--ease)}.topic-wall a:hover{background:var(--ink);color:var(--paper)}.callout{border-left:4px solid var(--red);padding:20px 22px;background:#E6E0D4}.callout h3{font:700 22px var(--serif);margin-bottom:8px}.callout p{margin:0;font-size:14px}.person-grid{margin-top:32px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(245,241,232,.16)}.person{padding:25px;background:var(--ink)}.person .role{font:11px var(--mono);color:var(--red);letter-spacing:.12em}.person h3{font:700 23px var(--serif);margin:8px 0}.person p{font-size:13px;color:var(--fog);margin-bottom:15px}.person-links{display:flex;gap:14px;font-size:12px;font-weight:700}.person-links a{border-bottom:1px solid var(--red)}.brand-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:28px;background:rgba(16,18,20,.16)}.brand-empty{background:#E9E4D9;padding:30px 18px;min-height:100px;display:flex;align-items:center;justify-content:center;text-align:center;color:#737876;font:11px var(--mono);letter-spacing:.08em}.how-grid{margin-top:30px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(245,241,232,.15)}.how-card{background:#202426;padding:26px}.how-card b{font:900 44px/1 var(--serif);color:var(--red)}.how-card h3{font:700 20px var(--serif);margin:8px 0}.how-card p{font-size:13px;color:var(--fog);margin:0}.faq-list{margin-top:32px;max-width:900px;border-top:1px solid rgba(16,18,20,.2)}details{border-bottom:1px solid rgba(16,18,20,.2);padding:17px 0}summary{cursor:pointer;font-weight:700;font-size:15px;list-style:none;display:flex;justify-content:space-between;gap:22px}summary:after{content:"+";color:var(--red);font:20px var(--mono);line-height:1}details[open] summary:after{content:"—"}details p{font-size:14px;color:#5F6665;max-width:720px;margin:12px 26px 2px 0}.contact-image{position:relative;height:410px;overflow:hidden;background:#24292B}.contact-image img{width:100%;height:100%;object-fit:cover}.contact-image:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,18,20,.52),transparent)}.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:0}.contact-info{padding:clamp(36px,6vw,70px);background:#1C2022}.contact-info h2{font:800 36px/1.25 var(--serif);margin-bottom:19px}.contact-info p{color:var(--fog);font-size:14px}.contact-info strong{color:var(--paper)}.contact-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.contact-pills span{font:11px var(--mono);border:1px solid rgba(245,241,232,.28);padding:7px}.honesty{border:1px dashed rgba(245,241,232,.28);padding:14px 16px;margin-top:20px;font-size:12px!important;color:#C1C8C5!important}.site-footer{background:#0B0C0D;border-top:1px solid var(--line);padding:0 clamp(18px,8vw,130px)}.footer-top{display:grid;grid-template-columns:1.25fr .82fr .75fr;gap:55px;padding:62px 0 42px}.footer-mark{width:50px}.footer-top h2{font:800 26px/1.35 var(--serif);margin:15px 0}.footer-top p{font-size:13px;color:var(--fog);max-width:500px}.footer-contact h3{font:700 15px var(--serif);margin-bottom:15px}.footer-contact p{margin-bottom:6px}.footer-qr{display:flex;align-items:start;gap:15px}.qr-box{width:100px;height:100px;padding:13px;display:flex;flex-direction:column;justify-content:flex-end;background:repeating-linear-gradient(90deg,#F5F1E8 0 7px,#111 7px 12px,#F5F1E8 12px 18px,#111 18px 22px),repeating-linear-gradient(#F5F1E8 0 5px,#111 5px 12px);outline:7px solid var(--paper);outline-offset:-8px;color:var(--ink);font-weight:900}.qr-box span{background:var(--paper);font-size:12px;line-height:1.3}.qr-box small{background:var(--paper);font-size:8px}.qr-business{filter:grayscale(1)}.footer-bottom{border-top:1px solid var(--line);padding:17px 0;display:flex;justify-content:space-between;gap:20px}.footer-bottom p{margin:0;font:10px var(--mono);color:#858C8D}.footer-bottom a:hover{color:var(--paper)}.share-bar{position:fixed;right:18px;bottom:18px;z-index:9;padding:9px;background:rgba(11,12,13,.86);border:1px solid rgba(245,241,232,.22);backdrop-filter:blur(10px);display:flex;gap:8px;align-items:center}.share-bar span{font:10px var(--mono);color:var(--fog);margin-right:4px}.share-bar button{border:0;background:transparent;color:var(--paper);font-size:11px;padding:4px;transition:color .15s}.share-bar button:hover{color:var(--red)}.toast{position:fixed;left:50%;bottom:28px;z-index:30;transform:translate(-50%,20px);opacity:0;background:var(--paper);color:var(--ink);padding:10px 15px;font-size:12px;font-weight:700;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease)}.toast.show{opacity:1;transform:translate(-50%,0)}.breadcrumb{padding:20px clamp(18px,8vw,130px) 5px;background:var(--paper);color:#646A69;font:11px var(--mono)}.breadcrumb a:hover{color:var(--red)}.breadcrumb span{margin:0 7px;color:#9BA09E}.breadcrumb strong{color:var(--ink)}.page-hero{background:var(--paper);color:var(--ink);padding:50px clamp(18px,8vw,130px) 70px;border-bottom:2px solid var(--ink)}.page-hero .eyebrow{color:#6A706E}.page-hero h1{font:900 clamp(38px,5vw,70px)/1.15 var(--serif);letter-spacing:-.06em;max-width:780px;margin-bottom:17px}.page-hero p{max-width:670px;color:#575E5C}.article-section{padding:60px clamp(18px,8vw,130px);background:var(--paper);color:var(--ink)}.article-section h2{font:800 34px/1.3 var(--serif);margin-bottom:18px}.article-section p{max-width:850px;color:#565D5C}.article-section ul{padding-left:18px;color:#565D5C;font-size:14px}.archive-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.archive-card{background:#1A1D1F;color:var(--paper);padding:27px;min-height:218px;display:flex;flex-direction:column;justify-content:space-between}.archive-card .archive{color:var(--red);font:11px var(--mono)}.archive-card h2{font:700 25px/1.35 var(--serif);margin:12px 0}.archive-card p{color:var(--fog);font-size:13px;margin:0}.archive-card a{font:700 12px var(--sans);margin-top:18px}.json-box{background:#101214;color:#D3DBD8;padding:22px;overflow:auto;font:12px/1.6 var(--mono);white-space:pre-wrap;max-width:100%;border-left:3px solid var(--red)}
@media(max-width:900px){.main-nav{position:absolute;display:none;left:0;right:0;top:75px;padding:20px;background:#101214;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start}.main-nav.open{display:flex}.menu-toggle{display:block}.feature-video,.split-content,.ai-band,.community-panels,.contact-layout{grid-template-columns:1fr}.video-stage{min-height:360px}.person-grid{grid-template-columns:1fr 1fr}.footer-top{grid-template-columns:1fr 1fr;gap:32px}.footer-qr{grid-column:1/-1}.hero{min-height:600px}.hero-meter{display:none}.video-rail,.archive-grid{grid-template-columns:1fr 1fr}.brand-wall{grid-template-columns:1fr 1fr}.how-grid{grid-template-columns:1fr}.contact-image{height:310px}}
@media(max-width:580px){.site-header{height:66px}.main-nav{top:65px}.brand-mark{width:36px;height:36px}.brand-word{width:97px}.site-search-wrap{padding:10px 18px}.site-search{gap:7px}.site-search button{padding:7px 8px;font-size:11px}.search-tip{margin-left:0}.hero{padding-top:82px;min-height:535px}.hero-art{background-image:linear-gradient(90deg,rgba(16,18,20,.95),rgba(16,18,20,.55)),url('/assets/hero-race.svg');background-position:60% center}.hero h1{font-size:43px}.hero-summary{font-size:15px}.route-line{height:49px}.route-line:before{top:23px}.route-line:after{top:5px;left:2%;right:2%;font-size:8px}.feature-video{margin-top:28px}.video-stage{min-height:300px}.video-rail,.archive-grid,.person-grid{grid-template-columns:1fr}.video-card{height:260px}.section{padding-top:55px;padding-bottom:55px}.section-title{font-size:32px}.footer-top{grid-template-columns:1fr;padding-top:47px}.footer-bottom{display:block}.footer-bottom p+p{margin-top:8px}.footer-qr{grid-column:auto}.share-bar{left:10px;right:10px;bottom:10px;justify-content:center}.share-bar span{display:none}.contact-info h2{font-size:30px}.page-hero{padding-top:35px;padding-bottom:50px}.page-hero h1{font-size:39px}.article-section{padding-top:45px;padding-bottom:70px}.article-section h2{font-size:29px}}
@media(prefers-reduced-motion:no-preference){.hero-content,.video-card,.person{animation:rise .55s var(--ease) both}@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}}