@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700&family=Outfit:wght@300;400;500;600;700&display=swap');
:root{--bg:#0a1019;--panel:#0e1722;--ink:#f4f2eb;--muted:#aeb8c1;--line:#31404c;--gold:#d9b76e;--gold-soft:#9d8351;--content:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Outfit,"Noto Sans SC",sans-serif;-webkit-font-smoothing:antialiased}button,a{font:inherit}a{color:inherit}button{cursor:pointer}.skip{position:absolute;left:-9999px;z-index:10}.skip:focus{left:16px;top:16px;padding:10px;background:#fff;color:#000}.topbar{height:72px;position:fixed;inset:0 0 auto;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:0 clamp(20px,4vw,62px);background:rgba(7,13,21,.89);backdrop-filter:blur(16px);border-bottom:1px solid rgba(217,183,110,.24)}.brand{display:flex;gap:13px;align-items:center;text-decoration:none;letter-spacing:.09em;font-weight:700;font-size:19px}.brand small{display:block;font-size:8px;letter-spacing:.23em;color:var(--gold);margin-top:3px}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border:1.5px solid var(--gold);color:var(--gold);font-size:26px;font-weight:500}.top-actions{display:flex;align-items:center;gap:26px}.page-indicator{color:var(--gold);font-size:13px;letter-spacing:.17em}.top-actions button{border:1px solid var(--line);color:var(--ink);background:transparent;padding:8px 12px}.top-actions button span{color:var(--gold);padding-left:8px}.reading-progress{height:2px;position:fixed;top:72px;left:0;z-index:22;background:var(--gold);width:0}.toc{position:fixed;inset:0 0 0 auto;width:min(380px,88vw);z-index:50;background:#101b28;border-left:1px solid var(--line);padding:25px 25px 60px;overflow:auto;transform:translateX(102%);transition:transform .25s ease}.toc.open{transform:none}.toc-backdrop{position:fixed;inset:0;z-index:40;background:#0009;display:none}.toc-backdrop.show{display:block}.toc-heading{display:flex;align-items:center;justify-content:space-between;font-size:20px;margin-bottom:24px}.toc-heading button{background:none;border:0;color:var(--ink);font-size:30px}.toc nav{display:grid}.toc nav a{text-decoration:none;padding:12px 4px;border-bottom:1px solid #2c3945;font-size:14px;display:flex;gap:16px;align-items:center;color:#d3d8db}.toc nav a:hover,.toc nav a.active{color:var(--gold)}.toc-index{font-size:12px;color:var(--gold-soft)}.document-section{min-height:calc(100vh - 72px);border-bottom:1px solid #293744;scroll-margin-top:72px;display:flex;align-items:center;position:relative;overflow:hidden}.document-section:nth-child(even){background:#0d1621}.document-section.cover{min-height:100vh;background:radial-gradient(circle at 75% 35%,#1c2935 0,#0c1520 35%,#090e16 80%)}.cover:after{content:"H";position:absolute;font-size:min(65vw,650px);font-weight:700;line-height:1;color:rgba(217,183,110,.045);right:-2vw;top:15%;pointer-events:none}.section-inner{position:relative;z-index:1;width:min(var(--content),calc(100% - 48px));margin:auto;padding:clamp(110px,12vw,170px) 0 clamp(80px,8vw,110px)}.eyebrow{color:var(--gold);font-size:11px;letter-spacing:.21em;text-transform:uppercase;margin:0 0 34px}.section-title{font-size:clamp(38px,6.1vw,76px);line-height:1.12;letter-spacing:-.035em;margin:0;font-weight:600;max-width:1000px}.cover .section-title{font-size:clamp(48px,8vw,110px);max-width:860px}.section-en{color:var(--gold);font-size:clamp(17px,2.2vw,27px);font-weight:300;margin:14px 0 0;letter-spacing:.015em}.section-lead{font-size:clamp(19px,2.4vw,29px);line-height:1.6;margin:48px 0 4px;color:#e4e9e8;max-width:820px}.section-lead-en{font-size:17px;line-height:1.6;color:var(--muted);margin:0;max-width:820px}.tiny-list{list-style:none;padding:0;margin:clamp(55px,7vw,100px) 0 0;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--gold-soft)}.tiny-list li{padding:23px 18px 8px 0;min-height:94px;display:flex;flex-direction:column;gap:4px}.tiny-number{color:var(--gold);font-size:13px;margin-bottom:8px}.tiny-cn{font-size:17px}.tiny-en{font-size:12px;color:var(--muted)}.content-list{margin-top:clamp(48px,6vw,85px);border-top:1px solid var(--line)}.content-row{padding:26px 0 30px;border-bottom:1px solid var(--line);display:flex;gap:30px}.row-number{font-size:14px;color:var(--gold);width:42px;flex:none;padding-top:4px}.row-copy{display:grid;grid-template-columns:minmax(200px,.8fr) minmax(250px,1.2fr);column-gap:32px;width:100%;align-items:start}.item-title{font-size:clamp(21px,2.2vw,28px);font-weight:500;margin:0;grid-column:1}.item-en{color:var(--gold);font-size:13px;line-height:1.4;grid-column:1;margin:6px 0 0}.item-body{font-size:16px;line-height:1.7;grid-column:2;grid-row:1;margin:1px 0 0}.item-body-en{color:var(--muted);font-size:13px;line-height:1.6;grid-column:2;grid-row:2;margin:6px 0 0}.overview .row-copy{grid-template-columns:1fr 1.3fr}.metric-list{display:grid;grid-template-columns:1fr 1fr;gap:50px;margin-top:clamp(55px,8vw,100px)}.metric{border-top:1px solid var(--gold);padding-top:18px}.metric-name{font-size:23px;font-weight:500;margin:0 0 16px}.metric-value{color:var(--gold);font-size:clamp(76px,11vw,145px);font-weight:300;line-height:1;margin:0}.metric-unit{font-size:18px;margin-left:10px;white-space:nowrap}.metric-desc{font-size:18px;margin:14px 0 4px}.metric-desc-en{font-size:13px;color:var(--muted);margin:0}.note,.note-en{max-width:880px;color:#d3c8ae;font-size:13px;line-height:1.7;margin:34px 0 0}.note-en{color:var(--muted);margin-top:2px}.video-wrap{margin-top:50px}.video-wrap video{display:block;width:100%;max-height:65vh;background:#02060a;object-fit:contain;border:1px solid #47525a}.video-caption{font-size:13px;color:var(--muted);margin:11px 0 0}.video .tiny-list{margin-top:48px}.videos-list{display:grid;grid-template-columns:1fr 1fr;gap:35px;margin-top:55px}.video-module .item-title{margin:0}.video-module .item-en{margin:5px 0 0}.video-module .video-wrap{margin-top:20px}.video-module video{aspect-ratio:16/9}.image-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:45px 0 55px}.image-pair figure{margin:0}.image-pair img{width:100%;display:block;object-fit:contain;background:#000;border:1px solid var(--line)}.image-pair figcaption{font-size:12px;color:var(--muted);margin-top:10px}.subheading{font-size:24px;font-weight:500;margin:45px 0 14px}.models-list{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;border-top:1px solid var(--line)}.model{padding:20px 0;display:flex;flex-direction:column;gap:10px;border-bottom:1px solid var(--line)}.model strong{font-size:19px;font-weight:500;color:var(--gold)}.model span{font-size:15px}.model small{font-size:12px;line-height:1.5;color:var(--muted)}.price-block{margin-top:55px;border-top:1px solid var(--gold);padding-top:25px}.price-number{font-size:clamp(72px,12vw,150px);font-weight:300;color:var(--gold);letter-spacing:-.06em;line-height:1;margin:0}.price-detail{font-size:24px;margin:16px 0 0}.price-en{font-size:14px;color:var(--muted);margin:3px 0}.price-bonus{margin:22px 0 0;font-size:17px}.section-pager{display:flex;justify-content:space-between;gap:20px;margin-top:80px;min-height:26px}.section-pager a{font-size:13px;color:var(--gold);text-decoration:none;border-bottom:1px solid transparent}.section-pager a:hover{border-color:var(--gold)}.section-pager a:last-child{margin-left:auto}.footer{padding:70px max(24px,calc((100% - var(--content))/2));background:#070d14;border-top:1px solid var(--gold-soft);display:flex;align-items:start;gap:30px;flex-wrap:wrap}.footer-brand{font-size:22px;font-weight:700;color:var(--gold)}.footer-brand span{font-size:11px;font-weight:400;letter-spacing:.1em}.footer p{max-width:580px;color:var(--muted);font-size:12px;line-height:1.7;margin:0}.footer a{color:var(--gold);font-size:13px;text-decoration:none;margin-left:auto}
@media(max-width:760px){.topbar{height:64px}.reading-progress{top:64px}.brand{font-size:16px}.brand-mark{height:32px;width:32px;font-size:21px}.brand small{font-size:6px}.page-indicator{display:none}.document-section{scroll-margin-top:64px;min-height:auto}.section-inner{width:calc(100% - 40px);padding:110px 0 75px}.eyebrow{font-size:9px;letter-spacing:.12em;margin-bottom:24px}.section-title{font-size:clamp(35px,10vw,60px)}.cover .section-title{font-size:clamp(47px,11vw,70px)}.section-en{font-size:17px}.section-lead{margin-top:35px}.section-lead-en{font-size:14px}.tiny-list{grid-template-columns:1fr 1fr;margin-top:60px}.tiny-list li{min-height:100px}.row-copy{display:block}.content-row{gap:9px}.row-number{width:34px}.item-title{font-size:21px}.item-en{font-size:12px}.item-body{font-size:15px;margin-top:18px}.item-body-en{font-size:12px}.metric-list,.videos-list,.image-pair{grid-template-columns:1fr;gap:36px}.metric-value{font-size:100px}.metric-unit{font-size:15px}.models-list{grid-template-columns:1fr 1fr}.video-wrap{margin-top:35px}.footer{padding:50px 22px}.footer a{margin-left:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.toc{transition:none}}