:root{color-scheme:light;--navy:#082854;--ink:#14233a;--muted:#48596c;--red:#c8151c;--pale:#f5f8fb;--line:#d5dee8;--white:#fff;font-family:"Microsoft YaHei","PingFang SC","Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--white);font-synthesis:none}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-underline-offset:5px}button,input,select,textarea{font:inherit}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #1769b0;outline-offset:4px}img{max-width:100%;display:block}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}.wrap{width:min(1280px,calc(100% - 80px));margin-inline:auto}.skip{position:absolute;left:12px;top:-80px;z-index:9;background:white;padding:12px}.skip:focus{top:10px}.site-header{border-bottom:1px solid #e9edf2;background:white}.header-inner{max-width:1440px;margin:auto;padding:20px 40px;display:flex;align-items:center;gap:34px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;white-space:nowrap;color:var(--red);font-size:24px;font-weight:800;line-height:1.1}.brand img{width:54px;height:36px;object-fit:contain;filter:brightness(0) saturate(100%) invert(14%) sepia(96%) saturate(4974%) hue-rotate(352deg) brightness(95%) contrast(96%)}.brand small{display:block;font-size:10px;letter-spacing:.03em;font-weight:400;color:var(--muted);margin-top:6px}.site-header nav{display:flex;gap:26px;margin-left:auto;align-items:center}.site-header nav a{text-decoration:none;font-size:15px;font-weight:600}.site-header nav a:hover,.language:hover{color:var(--red)}.header-actions{display:flex;align-items:center;gap:22px}.language{text-decoration:none;font-size:14px;padding:10px 0}.button{display:inline-flex;justify-content:center;align-items:center;min-height:48px;padding:13px 25px;background:var(--red);color:white;text-decoration:none;border:1px solid transparent;border-radius:4px;font-weight:700;font-size:15px;line-height:1.4;text-align:center}.button:not(:disabled):hover{background:#a40f15}.button:disabled{background:#e3e8ef;color:#536272;cursor:not-allowed}.button.secondary{color:var(--navy);background:white;border-color:#aebccd}.button.secondary:not(:disabled):hover{background:#edf2f7}.intro{padding-top:54px;padding-bottom:36px;text-align:center}.intro h1{font-size:clamp(32px,4vw,56px);letter-spacing:-.025em;line-height:1.2;margin:0 0 18px;color:#061a36;text-wrap:balance}.intro p{font-size:21px;line-height:1.6;margin:0;color:#34445a}.dossiers{display:grid;grid-template-columns:1fr 1fr;gap:28px;scroll-margin-top:20px}.dossiers article{min-width:0}figure{margin:0}.dossiers figure img{width:100%;aspect-ratio:2/1;height:auto;object-fit:cover;background:var(--pale)}.dossiers .cold-photo{object-position:center 65%}.dossiers figcaption{font-size:11px;line-height:1.5;color:var(--muted);margin-top:8px}.dossier-copy{padding:20px 6px 12px}.dossier-copy h2{font-size:29px;margin:0 0 15px;line-height:1.3;color:var(--navy);text-wrap:balance}.power{display:flex;gap:10px;align-items:baseline;font-size:23px;line-height:1.4;margin:0 0 15px}.power span{font-size:14px;color:var(--muted)}.power b{font-weight:400;font-size:18px}.dossier-copy>p:not(.power){font-size:16px;line-height:1.85;margin:0;max-width:64ch}.text-link{display:inline-flex;align-items:center;gap:12px;color:#b41118;font-size:16px;font-weight:700;margin-top:22px;padding-bottom:7px;text-decoration:none;border-bottom:1px solid currentColor}.text-link:hover{color:#811016}.text-link svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7}.boundary{font-size:12px;line-height:1.75;color:var(--muted);padding:12px 6px 30px;margin-top:10px;margin-bottom:0}.prepare-band{background:var(--navy);color:white}.band-inner{display:flex;align-items:center;gap:44px;justify-content:space-between;padding-block:34px}.band-inner h2{font-size:30px;line-height:1.3;margin:0 0 12px;text-wrap:balance}.band-inner p{font-size:16px;line-height:1.75;color:#e1e9f4;margin:0;max-width:70ch}.band-inner .button{flex-shrink:0}footer{padding:48px 0 24px;background:#f0f4f8}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:44px}.footer-grid h2{font-size:20px;line-height:1.5;margin:0 0 12px}.footer-grid p{font-size:14px;line-height:1.7;margin:0}.footer-grid>div:last-child{display:flex;flex-direction:column;gap:12px;align-items:flex-start}.footer-grid a{font-size:18px}.footer-note{margin-top:30px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;font-size:12px;line-height:1.6;color:var(--muted)}
@media(min-width:1550px){.intro{padding-top:64px}.dossiers{gap:32px}.dossier-copy h2{font-size:32px}}
@media(max-width:1100px){.header-inner{gap:20px;padding-inline:28px}.site-header nav{gap:18px}.header-cta{display:none}.wrap{width:calc(100% - 56px)}.dossier-copy h2{font-size:25px}.power{flex-wrap:wrap;font-size:22px}.band-inner h2{font-size:26px}}
@media(max-width:700px){.header-inner{padding:16px 20px;flex-wrap:wrap;gap:18px}.brand{font-size:22px}.brand img{width:45px;height:30px}.header-actions{margin-left:auto}.site-header nav{order:3;flex-basis:100%;justify-content:space-between;margin:0;gap:12px}.site-header nav a{font-size:14px}.wrap{width:calc(100% - 40px)}.intro{padding-top:36px;padding-bottom:28px}.intro h1{font-size:32px;line-height:1.25}.intro p{font-size:17px}.dossiers{grid-template-columns:1fr;gap:34px}.dossier-copy{padding:16px 0 0}.dossier-copy h2{font-size:26px}.dossiers figcaption{font-size:11px}.dossier-copy>p:not(.power){font-size:15px}.text-link{margin-top:16px}.boundary{font-size:12px;padding:24px 0}.band-inner{display:block;padding-block:30px}.band-inner h2{font-size:27px}.band-inner .button{margin-top:22px}.footer-grid{grid-template-columns:1fr;gap:26px}.footer-note{display:block}.footer-note span{display:block;margin-top:8px}}
@media(prefers-reduced-motion:no-preference){.button{transition:background-color .15s ease-out}html{scroll-behavior:smooth}}
.button.secondary:disabled{background:#e3e8ef;color:#536272;border-color:#cbd4de;cursor:not-allowed}
.brief-section{padding-block:70px;scroll-margin-top:20px}.section-heading{max-width:780px;margin-bottom:30px}.section-heading h2,.faq-layout h2,.process-section h2{font-size:32px;line-height:1.35;margin:0 0 16px;color:var(--navy);text-wrap:balance}.section-heading p{font-size:17px;line-height:1.9;color:#34445a;margin:0}.brief-layout{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:start}.fields{display:grid;grid-template-columns:1fr 1fr;gap:22px 20px}.field{min-width:0}.field.wide{grid-column:1/-1}.field label{display:block;font-size:15px;font-weight:700;line-height:1.6;margin-bottom:8px}.field label span{font-size:12px;font-weight:400;color:#a71017}.field input,.field select,.field textarea{display:block;width:100%;border:1px solid #aab8c8;border-radius:4px;padding:12px;color:var(--ink);background:white;min-height:48px;font-size:15px;line-height:1.6}.field textarea{resize:vertical;min-height:100px}.field input::placeholder,.field textarea::placeholder{color:#5e6d7e;opacity:1}.field-help{font-size:13px;line-height:1.7;color:var(--muted);margin:10px 0 0}.privacy-note{font-size:13px;line-height:1.75;color:var(--muted);margin:20px 0}.form-actions{display:flex;gap:20px;align-items:center;flex-wrap:wrap}.quiet-button{border:0;background:none;color:#0b4c84;text-decoration:underline;text-underline-offset:4px;padding:12px 0;font-size:14px;line-height:1.5;min-height:44px}.quiet-button:hover{color:#a71017}.quiet-button:disabled{color:#536272;cursor:not-allowed;text-decoration:none}.brief-preview{background:var(--pale);padding:28px;min-width:0;border-top:2px solid var(--navy)}.brief-preview h3{font-size:22px;line-height:1.4;margin:0 0 12px;color:var(--navy)}.preview-note{font-size:13px;line-height:1.75;color:var(--muted);margin:0 0 18px}.brief-preview pre{white-space:pre-wrap;overflow-wrap:anywhere;font-family:inherit;font-size:14px;line-height:1.9;margin:0;padding:20px;background:white;min-height:220px;max-height:520px;overflow:auto}.brief-preview #brief-status{font-size:13px;line-height:1.7;margin:16px 0;color:#34445a}.output-actions{display:flex;gap:12px;flex-wrap:wrap}.output-actions .button{font-size:14px;padding:10px 18px;min-height:44px}.output-actions .quiet-button{flex-basis:100%;text-align:left}.faq-section{padding:60px 0 70px;border-top:1px solid var(--line)}.faq-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:70px}.faq-layout>div>p{color:var(--muted);font-size:16px;line-height:1.8}.faq-layout details{border-bottom:1px solid var(--line)}.faq-layout summary{cursor:pointer;padding:20px 0;font-weight:700;font-size:16px;line-height:1.65}.faq-layout details p{font-size:15px;line-height:1.9;margin:0 0 24px;color:#34445a}.breadcrumb{display:flex;gap:14px;font-size:13px;color:var(--muted);padding-block:28px}.product-hero{display:grid;grid-template-columns:1fr 1.1fr;gap:52px;align-items:center;padding-block:10px 60px}.product-hero h1{font-size:clamp(30px,3.2vw,46px);line-height:1.2;color:var(--navy);margin:0 0 22px;letter-spacing:-.025em;text-wrap:balance}.product-intro{font-size:19px;line-height:1.8;margin:0 0 26px;color:#34445a}.power-label{font-size:14px;color:var(--muted);margin:0 0 8px}.detail-power{font-size:25px;line-height:1.6;font-weight:700;margin:0 0 16px;color:var(--navy)}.product-boundary{font-size:14px;line-height:1.8;color:var(--muted);margin:0 0 26px}.product-hero img{width:100%;height:auto}.product-hero figcaption,.evidence figcaption{font-size:12px;line-height:1.8;color:var(--muted);margin-top:12px}.technical-section{padding-block:40px 60px;border-top:1px solid var(--line)}.technical-list{margin:0}.technical-list>div{display:grid;grid-template-columns:240px 1fr;border-top:1px solid var(--line);padding:24px 0;gap:40px}.technical-list dt{font-size:17px;font-weight:700;color:var(--navy)}.technical-list dd{margin:0;font-size:16px;line-height:1.8}.evidence{display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center;padding-bottom:70px}.evidence img{width:100%;height:auto}.evidence .portrait img{max-height:520px;object-fit:contain}.process-section{padding-block:60px;background:var(--pale)}.process-section ol{display:flex;gap:60px;padding-left:24px;margin-block:26px}.process-section li{flex:1;padding-left:6px;line-height:1.8;font-size:17px;font-weight:600}.process-section p{max-width:75ch;font-size:15px;line-height:1.9;color:var(--muted);margin:24px 0}.back-link{display:inline-block;margin-left:24px;font-size:15px;line-height:1.7}
@media(max-width:1000px){.brief-layout{gap:28px;grid-template-columns:1.1fr 1fr}.fields{grid-template-columns:1fr}.faq-layout{gap:40px}.product-hero{gap:30px}.technical-list>div{grid-template-columns:180px 1fr}.process-section ol{gap:30px}}
@media(max-width:700px){.brief-section{padding-block:44px}.section-heading h2,.faq-layout h2,.process-section h2{font-size:27px}.section-heading p{font-size:16px}.brief-layout,.faq-layout,.product-hero,.evidence{grid-template-columns:1fr;gap:30px}.brief-preview{padding:22px}.brief-preview pre{padding:16px}.faq-section{padding-block:40px}.faq-layout{gap:12px}.product-hero{padding-bottom:38px}.product-hero h1{font-size:34px}.product-intro{font-size:17px}.detail-power{font-size:23px}.technical-section{padding-block:32px}.technical-list>div{grid-template-columns:1fr;gap:10px;padding-block:20px}.evidence{padding-bottom:40px}.process-section{padding-block:38px}.process-section ol{display:block;margin:20px 0}.process-section li{margin-bottom:16px}.back-link{display:block;margin:20px 0 0}.output-actions{gap:10px}.footer-grid h2{font-size:18px}}