/* Design 02 / 精准医疗。冰白、钴蓝、细线网格。
   真实素材 contain 完整展示；AI 概念图单独标识并允许 cover 裁切。 */
:root{color-scheme:light;--bg:#fff;--surface:#f2f7fb;--surface-raised:#e9f2fa;--text:#102844;--muted:#587086;--faint:#687d91;--accent:#1260de;--line:#d9e4ed;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:28px}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.8 var(--font);-webkit-font-smoothing:antialiased}
body,button,a{-webkit-tap-highlight-color:transparent}
::selection{background:var(--accent);color:#fff}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
button:disabled{cursor:default}
a,button{touch-action:manipulation;transition:color 160ms ease,background-color 160ms ease,border-color 160ms ease}
a:focus-visible,button:focus-visible,video:focus-visible{outline:3px solid var(--accent);outline-offset:5px}
[hidden]{display:none!important}
h1,h2,h3,h4,p,figure{margin:0}
h1,h2,h3,h4{font-weight:550}
.hero-positioning>span{display:inline-block}
img,video{display:block;max-width:100%}
svg{width:24px;height:24px;flex-shrink:0}
main:focus{outline:none}
.container{width:calc(100% - 96px);max-width:1280px;margin-inline:auto}
.skip-link{position:fixed;z-index:100;top:12px;left:20px;padding:10px 18px;background:var(--accent);color:#fff;transform:translateY(-180%)}
.skip-link:focus{transform:translateY(0)}

/* 页首：框角标记与简洁导航。 */
.site-header{position:relative;z-index:30;background:var(--bg)}
.header-inner{min-height:112px;display:flex;align-items:center;justify-content:space-between;gap:30px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:15px;min-height:64px;flex-shrink:0}
.brand-type{display:flex;flex-direction:column;align-items:flex-start;gap:7px}
.brand-wordmark{font-size:34px;line-height:1;font-weight:750;letter-spacing:-1.6px}
.brand small{display:block;white-space:nowrap;color:var(--muted);font-size:15px;line-height:1.4;letter-spacing:.06em}
.brand-symbol{position:relative;width:32px;height:32px;border:2px solid var(--accent);flex-shrink:0}
.brand-symbol::before,.brand-symbol::after{content:"";position:absolute;background:var(--bg)}
.brand-symbol::before{left:8px;top:-3px;width:12px;height:34px}
.brand-symbol::after{top:8px;left:-3px;height:12px;width:34px}
.brand-symbol i{display:none}
.desktop-nav{display:flex;gap:29px;margin-left:auto;margin-right:18px}
.desktop-nav a{position:relative;min-height:48px;display:grid;place-items:center;padding-inline:4px;color:var(--text);font-size:17px;font-weight:550;letter-spacing:.08em}
.desktop-nav a::after{content:"";position:absolute;left:4px;right:4px;bottom:4px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform 160ms ease}
.desktop-nav a:hover,.desktop-nav a:focus-visible{color:var(--accent)}
.desktop-nav a:hover::after,.desktop-nav a:focus-visible::after{transform:scaleX(1)}
.header-contact{display:flex;align-items:center;gap:21px;min-height:48px;padding:4px 0 4px 24px;border-left:1px solid var(--line);color:var(--accent);font-size:16px;font-weight:550}
.header-contact svg{width:19px}
.header-contact:hover{color:var(--text)}
.menu-toggle,.mobile-nav{display:none}

/* 首页首屏：横排标题，下接宽幅器械影像。 */
.hero-topline{display:flex;align-items:center;justify-content:space-between;gap:22px;padding-top:28px}
.eyebrow{display:flex;align-items:center;gap:14px;color:var(--accent);font-size:16px;font-weight:600;letter-spacing:.1em}
.hero-domain{flex-wrap:wrap;gap:9px 18px}
.hero-domain-en{font-size:17px;line-height:1.5;letter-spacing:.1em}
.hero-domain-zh{padding-left:18px;border-left:1px solid #abc7e9;font-size:20px;line-height:1.25;letter-spacing:.13em}
.prototype-note{display:flex;align-items:center;gap:8px;color:var(--faint);font-size:12px;letter-spacing:.02em}
.status-dot{width:5px;height:5px;display:inline-block;flex-shrink:0;border-radius:50%;background:var(--accent)}
.hero-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.57fr);align-items:center;gap:48px;padding-block:40px 38px}
.hero-copy{min-width:0}
.hero h1{font-size:clamp(46px,4.5vw,64px);font-weight:600;line-height:1.3;letter-spacing:-.065em}
.hero h1>span{display:inline}
.accent-text{color:var(--accent)}
.hero-intro{display:flex;flex-direction:column;gap:12px;border-left:3px solid var(--accent);padding:5px 0 5px 25px}
.hero-english{font-size:17px;line-height:1.45;font-weight:600;letter-spacing:-.015em;color:var(--accent);white-space:normal}
.hero-positioning{max-width:17em;font-size:25px;font-weight:600;line-height:1.6;letter-spacing:.01em;text-wrap:balance}
.hero-description{max-width:26em;color:var(--muted);font-size:15px;line-height:1.9}

.button{min-height:44px;display:inline-flex;align-items:center;justify-content:space-between;gap:20px;padding:10px 18px;font-size:14px}
.button-primary{background:var(--accent);color:#fff}
.button-primary:hover{background:#084bad}
.button-quiet{color:var(--muted)}
.button-quiet:hover{color:var(--accent);background:var(--surface)}
.button svg{width:19px}
.button-quiet>span{font-size:20px;line-height:1}




.hero-media{position:relative;min-width:0;border:1px solid var(--line)}
.hero-media .hero-surface{height:386px;aspect-ratio:auto}
.hero-media .concept-media .media-image{object-fit:cover;object-position:50% 53%}
.hero-media figcaption{position:absolute;right:23px;bottom:18px;z-index:4;max-width:65%;font-size:14px;color:#335571;letter-spacing:.07em;background:rgba(255,255,255,.92);padding:4px 8px;pointer-events:none}
.visual-index{position:absolute;top:23px;left:25px;z-index:3;display:flex;align-items:start;gap:14px;color:#2e5b88;pointer-events:none}
.visual-index>span:first-child{font-size:38px;line-height:1;letter-spacing:-.08em}
.visual-index>span:last-child{font-size:14px;line-height:1.5;letter-spacing:.12em;border-left:1px solid #8daac0;padding-left:10px}
.cross{position:absolute;z-index:3;display:block;width:15px;height:15px;pointer-events:none}
.cross::before,.cross::after{content:"";position:absolute;background:#678eb0}
.cross::before{top:7px;left:0;height:1px;width:15px}
.cross::after{left:7px;top:0;width:1px;height:15px}
.cross-a{top:24px;right:24px}
.cross-b{bottom:66px;left:25px}








/* 媒体状态：图片默认可见；加载失败才由 app.js 显示占位。 */
.media-surface{position:relative;aspect-ratio:1.6;overflow:hidden;background:var(--surface);color:var(--muted)}
.media-placeholder{position:absolute;inset:0;background-image:linear-gradient(#aac2d526 1px,transparent 1px),linear-gradient(90deg,#aac2d526 1px,transparent 1px);background-size:52px 52px}
.placeholder-center{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;padding:28px;text-align:center}
.placeholder-symbol{display:block;position:relative;height:43px;width:48px;margin-bottom:22px}
.placeholder-symbol i{position:absolute;width:36px;height:27px;border:1px solid #7898b3}
.placeholder-symbol i:first-child{left:0;top:0}
.placeholder-symbol i:last-child{left:11px;top:12px;background:var(--surface)}
.placeholder-title{font-size:15px;letter-spacing:.1em;color:#41617a}
.placeholder-sub{font-size:14px;letter-spacing:.04em;color:var(--muted);margin-top:6px}
.frame-corner{position:absolute;width:14px;height:14px;border-color:#9ab3c7;border-style:solid;border-width:0}
.top-left{top:21px;left:21px;border-top-width:1px;border-left-width:1px}
.top-right{top:21px;right:21px;border-top-width:1px;border-right-width:1px}
.bottom-left{bottom:21px;left:21px;border-bottom-width:1px;border-left-width:1px}
.bottom-right{bottom:21px;right:21px;border-bottom-width:1px;border-right-width:1px}
.media-index{position:absolute;bottom:21px;left:45px;font-size:14px;letter-spacing:.14em;color:var(--muted)}
.media-mark{position:absolute;bottom:15px;right:42px;color:#607e96;font-size:17px}
.media-image{position:absolute;inset:0;z-index:1;width:100%;height:100%;object-fit:contain;background:var(--surface)}
.concept-media .media-image{object-fit:cover}
.media-ready>.media-placeholder{display:none}
.concept-label{position:absolute;bottom:17px;left:19px;z-index:3;padding:4px 9px;background:rgba(255,255,255,.94);border:1px solid #cbdde9;color:#3d5b77;font-size:14px;line-height:1.6;letter-spacing:.025em;max-width:calc(100% - 38px)}
.hero-media .concept-label{bottom:18px;left:23px;max-width:31%}
.media-error{position:absolute;bottom:47px;left:15px;right:15px;z-index:4;text-align:center;font-size:14px;color:#41617a}

/* 共用章节与等高作品网格。 */
.section{padding-block:80px 88px;scroll-margin-top:25px}
.section-label{display:flex;justify-content:space-between;align-items:center;gap:20px;color:var(--faint);font-size:21px;font-weight:600;letter-spacing:.1em;margin-bottom:26px}
.section-label>span:first-child{color:var(--accent);display:inline-flex;align-items:center;gap:15px}
.section-label>span:last-child{font-size:13px;font-weight:500;letter-spacing:.13em}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:50px;margin-bottom:30px}
.section h2{font-size:35px;line-height:1.4;letter-spacing:-.055em}
.section-heading p{color:var(--muted);font-size:15px;line-height:1.9;max-width:420px;padding-bottom:3px}
.works{padding-top:66px}
.works-note{display:flex;align-items:baseline;gap:9px;font-size:13px;color:var(--faint);line-height:1.85;margin-bottom:30px}
.works-note .status-dot{background:#8da7bc}
.work-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:38px 28px;align-items:stretch}
.work-card{min-width:0}
.work-link{height:100%;display:flex;flex-direction:column}
.work-image{position:relative}
.work-image .media-surface{aspect-ratio:1.78}
.work-image .concept-media .media-image{transition:transform 350ms ease}
.work-link:hover .concept-media .media-image{transform:scale(1.025)}
.work-kind{position:absolute;top:17px;left:19px;z-index:3;padding:3px 9px;border:1px solid #cbdde9;background:rgba(255,255,255,.94);color:#3d5b77;font-size:14px}
.work-arrow{position:absolute;right:18px;bottom:17px;z-index:3;display:grid;place-items:center;width:42px;height:42px;border:1px solid #bdd2e4;border-radius:50%;background:rgba(255,255,255,.96);color:var(--accent);transition:background-color 160ms ease,color 160ms ease}
.work-arrow svg{width:20px;transform:rotate(-45deg)}
.work-link:hover .work-arrow{background:var(--accent);border-color:var(--accent);color:#fff}
.work-meta{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:21px;font-size:15px;font-weight:550;color:var(--accent);letter-spacing:.035em}
.work-meta>span:last-child{color:var(--faint)}
.work-english{color:var(--muted);font-size:13px;line-height:1.7;letter-spacing:.045em;margin-top:7px}
.work-card h3{font-size:24px;line-height:1.5;letter-spacing:-.045em;margin-top:3px}
.work-details{color:var(--muted);font-size:14px;line-height:1.9;margin-top:10px;margin-bottom:18px}
.work-details>span{color:#a3b9c9;margin-inline:7px}
.work-detail-link{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:50px;margin-top:auto;border-block:1px solid var(--line);font-size:15px;font-weight:550;color:var(--accent)}
.work-detail-link svg{width:18px}

/* 能力与四步流程：轻量分栏、技术注记。 */
.services{background:var(--surface);border-block:1px solid var(--line)}
.services .section-heading{margin-bottom:43px}
.services-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.service-item{padding:0 34px 2px 0}
.service-item+.service-item{padding-left:34px;border-left:1px solid #cfdeeb}
.service-item:last-child{padding-right:0}
.service-top{display:flex;align-items:center;justify-content:space-between;gap:20px}
.service-icon{width:42px;height:42px;color:var(--accent)}
.service-index{font-size:15px;color:var(--accent);letter-spacing:.08em}
.service-item h3{font-size:22px;letter-spacing:-.035em;margin-block:25px 13px}
.service-item p{color:var(--muted);font-size:15px;line-height:1.95;max-width:330px}
.service-tags{margin-top:25px;display:flex;flex-wrap:wrap;gap:8px 12px;font-size:14px;color:#3c6b91}
.service-tags>span+span{border-left:1px solid #bed3e3;padding-left:12px}
.process-block{border-top:1px solid #cfdeeb;padding-top:33px;margin-top:55px}
.process-heading{display:grid;grid-template-columns:240px 1fr auto;align-items:center;gap:24px;margin-bottom:29px}
.small-label{font-size:14px;color:var(--muted);letter-spacing:.06em}
.process-heading .small-label{font-size:15px;font-weight:600;color:var(--accent);letter-spacing:.055em}
.process-heading h3{font-size:22px;letter-spacing:-.03em}
.process-heading>p:last-child{color:var(--muted);font-size:14px;max-width:325px}
.process-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:25px}
.process-item{border-top:1px solid #c3d7e6;padding-top:17px}
.process-number{font-size:16px;color:var(--accent);letter-spacing:.1em}
.process-item h4{font-size:18px;margin-block:9px 8px}
.process-item p{color:var(--muted);font-size:14px;line-height:1.9;max-width:265px}

/* 关于与联系。真实资料缺省仍清晰标识。 */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px}
.about h2{font-size:36px;line-height:1.65}
.identity-note{display:inline-block;border-bottom:1px solid var(--line);padding-bottom:8px;color:var(--faint);font-size:14px;margin-top:27px}
.about-copy{padding-top:7px}
.about-copy>p{color:var(--muted);font-size:15px;line-height:2.05;margin-bottom:20px}
.tools{border-top:1px solid var(--line);padding-top:18px;margin-top:31px}
.tools>span{color:var(--faint);font-size:14px}
.tools p{font-size:14px;line-height:2;color:#3c6b91;margin-top:8px}
.tools p span{color:#a3b9c9;margin-inline:5px}
.contact{background:#eaf3fb;border-top:1px solid #d2e2f0}
.contact-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:100px}
.contact h2{font-size:37px;line-height:1.55}
.contact-description{font-size:15px;line-height:2;color:var(--muted);max-width:540px;margin-top:20px}
.contact-methods{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;margin-top:29px}
.contact-method{border-top:1px solid #bbd3e8;padding-block:16px 10px;min-width:0}
.contact-method>span{display:block;color:var(--muted);font-size:14px;margin-bottom:10px}
.contact-method strong{font-size:17px;font-weight:500;overflow-wrap:anywhere}
.contact-method strong .status-dot{background:#7d9bb2;margin-left:11px;margin-bottom:3px}
.contact-method a{display:flex;align-items:center;min-height:44px;gap:10px;color:var(--accent);font-size:14px;overflow-wrap:anywhere}
.contact-method a svg{width:18px}
.wechat-value{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.text-button{border:1px solid #a1bfd8;background:transparent;color:var(--accent);padding:8px 12px;min-height:44px;font-size:14px}
.text-button:hover{background:#dcecf9}
.copy-status,.contact-pending{font-size:14px;color:var(--muted);margin-top:9px}
.copy-status:empty{display:none}
.contact-qr{margin-top:20px;max-width:200px}
.contact-qr .media-surface{aspect-ratio:1}
.contact-qr figcaption{font-size:14px;margin-top:8px}
.project-start{border-left:1px solid #bbd3e8;padding-left:37px;margin-top:6px}
.project-start ol{list-style:none;counter-reset:steps;margin:19px 0 25px;padding:0}
.project-start li{display:flex;align-items:center;gap:20px;counter-increment:steps;font-size:14px;color:var(--muted);padding-block:13px;border-bottom:1px solid #cadae8}
.project-start li::before{content:'0' counter(steps);color:var(--accent);font-size:14px}
.project-start>p{font-size:14px;color:#315d80;line-height:1.9}
.site-footer{padding-block:27px 18px;border-top:1px solid var(--line)}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:25px;font-size:14px}
.footer-brand{font-size:14px}
.footer-brand span{color:var(--faint);font-size:14px}
.footer-inner p{color:var(--muted)}
.footer-inner>a:last-child{display:flex;align-items:center;min-height:44px;color:var(--accent);white-space:nowrap}
.footer-note{margin-top:15px;padding-top:16px;border-top:1px solid var(--line);font-size:14px;color:var(--faint);line-height:1.9}
.footer-filing{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 24px;margin-top:9px;font-size:14px;color:var(--muted)}
.footer-filing a{display:inline-flex;align-items:center;min-height:44px;gap:6px;overflow-wrap:anywhere}
.footer-filing a:hover{color:var(--accent);text-decoration:underline}

/* 案例详情：横向题头、项目档案与文章目录。 */
.case-hero{padding-top:27px}
.back-link{display:inline-flex;align-items:center;min-height:44px;color:var(--accent);font-size:14px}
.back-link:hover{color:var(--text)}
.case-eyebrow{display:flex;align-items:center;gap:20px;margin-top:32px;color:var(--accent);font-size:16px;font-weight:550;letter-spacing:.08em}
.case-eyebrow>span:first-child{border-right:1px solid var(--line);padding-right:20px}
.case-title-row{display:flex;justify-content:space-between;align-items:end;gap:45px;margin-top:15px}
.case-hero h1{font-size:clamp(34px,3.8vw,54px);line-height:1.35;letter-spacing:-.055em;font-weight:550}
.case-english{max-width:300px;flex-shrink:0;font-size:21px;line-height:1.3;letter-spacing:-.045em;color:var(--accent);padding-bottom:4px}
.case-summary{color:var(--muted);font-size:15px;line-height:2;max-width:860px;margin-top:19px}
.case-status{display:flex;flex-wrap:wrap;gap:8px;margin-top:23px}
.case-status>span{border:1px solid var(--line);padding:3px 10px;color:var(--muted);font-size:14px}
.case-status>span:first-child{color:var(--accent);border-color:#bed4e9;background:var(--surface)}
.case-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding-block:20px;margin-block:31px 8px;border-top:1px solid var(--line)}
.case-facts>div{border-right:1px solid var(--line);padding-right:24px}
.case-facts>div:last-child{border:0}
.case-facts span{display:block;font-size:14px;color:var(--faint);margin-bottom:8px}
.case-facts strong{display:block;font-size:15px;line-height:1.75;font-weight:450}
.case-cover .media-surface{aspect-ratio:2.3;border:1px solid var(--line)}
.case-cover .media-image{object-fit:contain;background:var(--surface)}
.case-cover figcaption{font-size:14px;color:var(--faint);line-height:1.9;margin-block:12px 24px}
.video-empty{display:grid;grid-template-columns:130px 1fr auto;align-items:center;gap:20px;padding:23px 27px;border-block:1px solid var(--line);background:var(--surface)}
.video-empty strong{font-size:15px;font-weight:450}
.video-empty p{color:var(--muted);font-size:14px}
.video-block{padding-block:12px}
.video-block video{width:100%;max-height:75vh;background:#10202f}
.video-error{padding:27px;color:var(--muted);background:var(--surface);border:1px solid var(--line)}
.video-transcript{color:var(--muted);font-size:14px;margin-top:16px;white-space:pre-line}
.case-notice{color:var(--faint);font-size:14px;line-height:1.9;margin-top:17px}
.case-body{display:grid;grid-template-columns:190px minmax(0,1fr);gap:90px;margin-top:64px}
.case-toc{align-self:start;position:sticky;top:28px;padding-top:23px;border-top:1px solid var(--line)}
.case-toc .small-label{color:var(--accent)}
.case-toc nav{display:flex;flex-direction:column;margin-top:16px}
.case-toc a{display:flex;align-items:center;min-height:44px;gap:15px;color:var(--muted);font-size:15px}
.case-toc a span{color:var(--accent);font-size:14px;letter-spacing:.05em}
.case-toc a:hover{color:var(--accent)}
.story-section{padding-block:28px 43px;border-top:1px solid var(--line);scroll-margin-top:25px}
.story-index{display:block;color:var(--accent);font-size:16px;font-weight:550;letter-spacing:.08em;margin-bottom:11px}
.story-section h2{font-size:27px;line-height:1.5;letter-spacing:-.04em;margin-bottom:17px}
.story-section>p{font-size:15px;color:var(--muted);line-height:2.05}
.role-list{margin:0}
.role-list>div{display:grid;grid-template-columns:102px minmax(0,1fr);gap:20px;padding-block:14px;border-bottom:1px solid var(--line)}
.role-list dt{color:var(--accent);font-size:14px}
.role-list dd{color:var(--muted);font-size:14px;margin:0}
.frame-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:25px}
.frame-grid>figure:only-child{grid-column:1/-1}
.frame-grid .media-surface{aspect-ratio:1.45}
.frame-grid .placeholder-title{font-size:14px}
.frame-grid .placeholder-sub{font-size:14px}
.frame-grid .placeholder-symbol{transform:scale(.8);margin-bottom:9px}
.frame-grid h3{font-size:18px;margin-top:15px}
.frame-grid figcaption p{font-size:14px;line-height:1.9;color:var(--muted);margin-top:7px}
.story-section .permission-note{margin-top:23px;padding:14px 17px;border-left:2px solid #6f9dc1;background:var(--surface);font-size:14px}
.case-return{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:20px;margin-bottom:42px;border-top:1px solid var(--line);color:var(--accent);font-size:14px}
.case-return a{display:flex;align-items:center;min-height:44px;gap:21px}
.case-return svg{width:19px}

/* 平板保留分栏，长标题主动换行。 */
@media(min-width:1600px){.hero-media .hero-surface{height:420px}}
@media(max-width:1100px){
  .container{width:calc(100% - 64px)}
  .brand-type{gap:7px}.brand small{font-size:14px}
  .desktop-nav{gap:24px;margin-right:0}.header-inner{gap:20px}.header-contact{display:none}
  .hero-heading{grid-template-columns:minmax(0,1fr) minmax(285px,.8fr);gap:35px}
  .hero h1{font-size:51px}.hero h1>span{display:block}
  .hero-intro{gap:10px;padding-left:22px}.hero-positioning{font-size:23px}
  .hero-media .hero-surface{height:360px}

  .section{padding-block:65px 72px}.works{padding-top:43px}.section h2{font-size:31px}
  .work-grid{gap:26px}.work-card h3{font-size:22px}
  .service-item{padding-right:24px}.service-item+.service-item{padding-left:24px}.service-item h3{font-size:20px}
  .process-heading{grid-template-columns:225px 1fr;gap:10px 23px}.process-heading>p:last-child{grid-column:2;max-width:none}
  .process-grid{gap:19px}.about-grid{gap:55px}.about h2{font-size:31px}
  .contact-grid{gap:55px}.contact h2{font-size:31px}.project-start{padding-left:28px}
  .case-body{grid-template-columns:170px minmax(0,1fr);gap:48px}.case-title-row{gap:30px}.case-english{font-size:19px;max-width:240px}
  .video-empty{grid-template-columns:110px 1fr}.video-empty p{grid-column:2}
}
@media(min-width:761px) and (max-width:880px){
  .brand small{display:block}.desktop-nav{gap:19px;margin-right:0}.desktop-nav a{font-size:16px}
  .hero-topline{align-items:start}.prototype-note{max-width:170px;font-size:12px}.hero-domain-en{font-size:15px}.hero-domain-zh{font-size:18px}
  .hero-heading{grid-template-columns:minmax(0,1fr) minmax(285px,1fr);gap:28px}.hero h1{font-size:45px}.hero-positioning{font-size:22px}

  .section-heading{gap:30px}.section-heading p{max-width:305px}
  .service-item,.service-item+.service-item{padding-inline:18px}.service-item:first-child{padding-left:0}.service-item:last-child{padding-right:0}
  .service-item h3{font-size:18px}.service-tags{font-size:14px;gap:7px}.service-tags>span+span{padding-left:7px}
  .process-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:25px}.about-grid{gap:35px}
  .contact-grid{grid-template-columns:1.3fr 1fr;gap:35px}.contact-methods{gap:18px}.contact h2{font-size:28px}.project-start{padding-left:23px}
  .case-title-row{align-items:start}.case-hero h1{font-size:38px}.case-english{max-width:210px;padding-top:7px}
  .case-body{gap:34px;grid-template-columns:155px minmax(0,1fr)}.frame-grid{gap:18px}.frame-grid .placeholder-center{padding:16px}
  .frame-grid .placeholder-title{font-size:14px}.frame-grid .placeholder-sub{font-size:14px}
}

/* 手机：导航展开、作品单列，所有独立操作保持 44px 触控区域。 */
@media(max-width:760px){
  html{scroll-padding-top:20px}.container{width:calc(100% - 40px)}
  .header-inner{min-height:98px;gap:15px}.brand{gap:12px}.brand-wordmark{font-size:29px;letter-spacing:-1.2px}
  .brand small{font-size:14px;letter-spacing:.04em}.brand-type{gap:7px}
  .brand-symbol{width:28px;height:28px}.brand-symbol::before{left:7px;width:10px;height:30px}.brand-symbol::after{top:7px;height:10px;width:30px}
  .desktop-nav,.header-contact{display:none}
  .menu-toggle{display:flex;flex-direction:column;align-items:center;justify-content:center;flex-shrink:0;gap:6px;width:44px;height:44px;padding:0;border:1px solid #c9dbe9;color:var(--accent);background:var(--bg)}
  .menu-toggle span{width:17px;height:1px;background:currentColor;transition:transform 160ms ease}
  .menu-toggle[aria-expanded=true] span:first-child{transform:translateY(3.5px) rotate(45deg)}
  .menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}
  .mobile-nav{display:grid;padding:12px 20px 20px;background:var(--surface);border-bottom:1px solid var(--line)}
  .mobile-nav a{display:flex;align-items:center;justify-content:space-between;min-height:52px;padding-inline:9px;border-bottom:1px solid var(--line);font-size:17px}
  .mobile-nav svg{width:18px;color:var(--accent)}
  .hero-topline{padding-top:24px;align-items:start;flex-direction:column;gap:10px}.eyebrow{font-size:15px;letter-spacing:.06em;gap:7px}.hero-domain{gap:9px 13px}.hero-domain-en{font-size:14px;letter-spacing:.065em}.hero-domain-zh{font-size:18px;padding-left:13px}
  .prototype-note{max-width:none;font-size:12px;line-height:1.7;gap:7px;letter-spacing:0}.prototype-note .status-dot{width:5px;height:5px}
  .hero-heading{grid-template-columns:1fr;gap:28px;padding-block:30px 30px}
  .hero h1{font-size:clamp(37px,10.6vw,62px);line-height:1.22;letter-spacing:-.07em}.hero h1>span{display:block}
  .hero-intro{gap:9px;padding:2px 0 2px 18px}
  .hero-english{font-size:16px;line-height:1.5}.hero-positioning{font-size:22px;line-height:1.55;max-width:15em}.hero-description{font-size:14px;line-height:1.85}

  
  .hero-media .hero-surface{height:295px}.hero-media .concept-media .media-image{object-position:53% center}
  .visual-index{top:16px;left:16px;gap:10px}.visual-index>span:first-child{font-size:29px}.visual-index>span:last-child{font-size:7px;padding-left:8px}
  .cross-a{top:17px;right:17px}.cross-b{display:none}
  .hero-media .concept-label{left:11px;bottom:44px;max-width:calc(100% - 22px);font-size:14px;padding:3px 6px}
  .hero-media figcaption{left:11px;right:auto;bottom:11px;max-width:calc(100% - 22px);padding:3px 6px;font-size:14px;letter-spacing:0}

  

  .section{padding-block:52px 58px;scroll-margin-top:18px}.works{padding-top:48px}
  .section-label{font-size:18px;margin-bottom:22px;gap:12px}.section-label>span:last-child{font-size:11px;letter-spacing:.08em}
  .section-heading{display:block;margin-bottom:22px}.section h2{font-size:29px;line-height:1.45}
  .section-heading p{max-width:100%;font-size:14px;margin-top:13px;padding:0}.works-note{font-size:14px;line-height:1.85;margin-bottom:23px}
  .work-grid{grid-template-columns:1fr;gap:33px}.work-image .media-surface{aspect-ratio:1.58}
  .concept-label{bottom:12px;left:12px;max-width:calc(100% - 24px);font-size:14px}.work-kind{top:12px;left:12px;font-size:14px}
  .work-arrow{right:12px;bottom:12px;width:37px;height:37px}.work-meta{margin-top:18px;font-size:14px}.work-english{font-size:12px;margin-top:7px}
  .work-card h3{font-size:23px;line-height:1.5}.work-details{font-size:14px;line-height:1.85;margin-block:10px 16px}.work-details>span{margin-inline:4px}
  .work-detail-link{font-size:14px;min-height:47px}.placeholder-title{font-size:14px}.placeholder-sub{font-size:14px}.placeholder-symbol{margin-bottom:17px}
  .services .section-heading{margin-bottom:31px}.services-grid{grid-template-columns:1fr}
  .service-item,.service-item+.service-item{padding:25px 0 29px;border-left:0}.service-item+.service-item{border-top:1px solid #cfdeeb}
  .service-item:first-child{padding-top:0}.service-item:last-child{padding-bottom:0}.service-icon{width:36px;height:36px}
  .service-item h3{font-size:21px;margin-block:15px 11px}.service-item p{max-width:none;font-size:14px}.service-tags{margin-top:19px}
  .process-block{margin-top:32px;padding-top:26px}.process-heading{display:block;margin-bottom:24px}.process-heading h3{font-size:20px;margin-top:9px}
  .process-heading>p:last-child{font-size:14px;margin-top:8px}.process-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 22px}
  .process-item{padding-top:14px}.process-item h4{font-size:15px;margin-top:8px}.process-item p{font-size:14px;line-height:1.9}
  .about-grid{grid-template-columns:1fr;gap:28px}.about h2{font-size:29px;line-height:1.65}.identity-note{margin-top:21px;font-size:14px}
  .about-copy{padding-top:0}.about-copy>p{font-size:14px;line-height:2.05;margin-bottom:17px}.tools{margin-top:25px;padding-top:18px}.tools p{font-size:14px}
  .contact-grid{grid-template-columns:1fr;gap:31px}.contact h2{font-size:28px;line-height:1.6}.contact-description{font-size:14px;margin-top:16px}
  .contact-methods{gap:20px;margin-top:25px}.contact-method strong{font-size:16px}.contact-method a{font-size:14px}
  .project-start{margin:0;padding:24px 0 0;border-left:0;border-top:1px solid #bbd3e8}.project-start ol{margin-block:13px 20px}
  .project-start li{font-size:14px;padding-block:11px}.project-start>p{font-size:14px}.project-start>p br{display:none}
  .site-footer{padding-block:22px 16px}.footer-inner{align-items:start;flex-wrap:wrap;gap:8px 18px}
  .footer-brand{display:flex;flex-direction:column;min-height:44px;justify-content:center;font-size:14px}.footer-brand span{font-size:14px;margin-top:3px}
  .footer-inner p{display:none}.footer-inner>a:last-child{font-size:14px}.footer-note{font-size:14px;margin-top:10px;padding-top:14px}.footer-filing{font-size:14px;margin-top:6px}
  .case-hero{padding-top:19px}.case-eyebrow{margin-top:24px;font-size:15px;gap:15px}.case-eyebrow>span:first-child{padding-right:15px}
  .case-title-row{display:block;margin-top:15px}.case-hero h1{font-size:33px;line-height:1.45}.case-english{font-size:20px;max-width:none;margin-top:10px;padding:0}
  .case-summary{font-size:14px;line-height:2;margin-top:15px}.case-status{margin-top:20px;gap:7px}.case-status>span{font-size:14px;padding:3px 8px}
  .case-facts{grid-template-columns:1fr;gap:0;padding-block:5px;margin-block:26px 8px}.case-facts>div{display:grid;grid-template-columns:85px minmax(0,1fr);gap:14px;padding:13px 0;border-right:0;border-bottom:1px solid var(--line)}.case-facts>div:last-child{border-bottom:0}.case-facts span{font-size:14px;margin-bottom:0}.case-facts strong{font-size:14px}
  .case-cover .media-surface{aspect-ratio:1.45}.case-cover figcaption{font-size:14px;margin-block:11px 20px}
  .video-empty{grid-template-columns:1fr;gap:7px;padding:20px}.video-empty strong{font-size:14px}.video-empty p{grid-column:auto;font-size:14px}
  .case-notice{font-size:14px;margin-top:15px}.case-body{display:block;margin-top:34px}.case-toc{position:static;padding-top:20px;margin-bottom:25px}
  .case-toc nav{flex-direction:row;flex-wrap:wrap;gap:2px 17px;margin-top:10px}.case-toc a{min-height:44px;gap:8px;font-size:14px}
  .story-section{padding-block:26px 32px;scroll-margin-top:18px}.story-section h2{font-size:24px;margin-bottom:15px}.story-section>p{font-size:14px}
  .role-list>div{grid-template-columns:1fr;gap:7px;padding-block:13px}.role-list dd{font-size:14px}
  .frame-grid{grid-template-columns:1fr;gap:24px;margin-top:21px}.frame-grid .media-surface{aspect-ratio:1.48}.frame-grid figcaption p{font-size:14px}
  .story-section .permission-note{font-size:14px;padding:12px 15px}.case-return{font-size:14px;gap:14px;padding-block:16px;margin-bottom:25px}
  .case-return a{gap:8px}.case-return svg{width:17px}
}
@media(max-width:370px){
  .container{width:calc(100% - 32px)}.brand{gap:10px}.brand small{display:block;font-size:13px}.brand-wordmark{font-size:28px}.hero-domain{gap:8px 10px}.hero-domain-en{font-size:14px}.hero-domain-zh{font-size:17px;padding-left:10px}.prototype-note{max-width:none}
  .hero-intro{gap:9px}.hero-english{font-size:15px}.hero-positioning{font-size:21px}.hero-media .hero-surface{height:273px}
  .hero-media .concept-label{bottom:51px}
  .work-card h3{font-size:21px}.contact-methods{grid-template-columns:1fr;gap:10px}.contact h2{font-size:26px}.case-hero h1{font-size:30px}
}
/* 本人提供的 16:9 静帧完整呈现；文字、标识和产品说明不裁切、不叠加装饰。 */
.media-surface.work-still,.work-image .media-surface.work-still,.case-cover .media-surface.work-still,.frame-grid .media-surface.work-still{aspect-ratio:16/9}
.hero-media .hero-surface.work-still{height:auto;aspect-ratio:16/9}
.media-surface.work-still .media-image{object-fit:contain;transform:none}
.supplied-hero figcaption{position:static;max-width:none;padding:10px 16px;background:var(--bg);border-top:1px solid var(--line);font-size:14px;letter-spacing:.02em}
.still-preview-note{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 0;border-block:1px solid var(--line);color:var(--muted);font-size:14px}
.still-preview-note>span{color:var(--accent);font-size:14px;letter-spacing:.08em}
.work-grid-three{grid-template-columns:repeat(3,minmax(0,1fr));gap:25px}
.work-grid-three .work-card h3{font-size:24px}
.work-grid-three .work-meta{font-size:14px}
.work-grid-three .work-english{font-size:14px;letter-spacing:.05em}
@media(min-width:761px) and (max-width:1100px){
  .work-grid-three{gap:20px}.work-grid-three .work-card h3{font-size:20px}.work-grid-three .work-details{font-size:14px}
}
@media(max-width:760px){
  .work-grid-three{grid-template-columns:1fr;gap:33px}.work-grid-three .work-card h3{font-size:24px}
  .supplied-hero figcaption{padding:9px 11px;font-size:14px}
  .still-preview-note{align-items:flex-start;flex-direction:column;gap:5px;font-size:14px}
}
.work-grid-expanded{grid-template-columns:repeat(3,minmax(0,1fr));gap:40px 28px}
.work-grid-expanded .work-card h3{font-size:24px}
.work-grid-five{grid-template-columns:repeat(6,minmax(0,1fr));gap:40px 28px}
.work-grid-five .work-card{grid-column:span 2}
.work-grid-five .work-card:nth-child(n+4){grid-column:span 3}
.work-grid-five .work-card h3{font-size:24px}
.work-grid-five .work-card:nth-child(n+4) h3{font-size:28px}
@media(min-width:761px) and (max-width:1100px){
  .work-grid-expanded{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 26px}
  .work-grid-five{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 26px}
  .work-grid-five .work-card,.work-grid-five .work-card:nth-child(n+4){grid-column:span 1}
  .work-grid-five .work-card:last-child{grid-column:1/-1}
  .work-grid-five .work-card h3,.work-grid-five .work-card:nth-child(n+4) h3{font-size:24px}
}
@media(max-width:760px){
  .work-grid-expanded{grid-template-columns:1fr;gap:36px}
  .work-grid-five{grid-template-columns:1fr;gap:36px}
  .work-grid-five .work-card,.work-grid-five .work-card:nth-child(n+4){grid-column:auto}
  .work-grid-five .work-card h3,.work-grid-five .work-card:nth-child(n+4) h3{font-size:24px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.work-link:hover .concept-media .media-image{transform:none}}