:root{--ink:#142e38;--muted:#647375;--green:#163e35;--lime:#d9ee91;--paper:#f5f7f3;--line:#dce3dc;--white:#fff;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--paper);color:var(--ink);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.7}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #3b805f;outline-offset:5px}button{cursor:pointer}button:disabled{opacity:.55;cursor:default}.shell{width:min(1180px,calc(100% - 80px));margin:auto}.nav{height:100px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid 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26px;display:flex;align-items:center;gap:8px}.dot{width:7px;height:7px;border-radius:50%;display:inline-block;background:#7ba559}.hero h1{font-size:clamp(38px,4.1vw,57px);line-height:1.35;letter-spacing:-2px;font-weight:750;margin:0 0 27px}.accent{color:#51724a}.hero-desc{font-size:18px;color:var(--muted);line-height:1.9;margin:0 0 30px}.button{background:var(--green);color:#fff;border:0;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;gap:27px;padding:16px 23px;font-size:14px;font-weight:650;transition:background .2s,transform .2s}.button:hover{background:#235647;transform:translateY(-2px)}.button span{font-size:19px}.micro{font-size:11px;color:var(--muted);margin-top:13px}.hero-principles{display:flex;gap:24px;font-size:12px;margin-top:38px;color:#47625b}.hero-principles span:before{content:"✓";margin-right:8px}.hero-visual{position:relative;min-height:400px;padding:47px 13px 0;background:radial-gradient(ellipse at 50% 40%,#e5eddc,transparent 70%)}.orbit{position:absolute;width:360px;height:360px;border:1px solid #d2dfcb;border-radius:50%;left:50%;top:10px;transform:translateX(-50%);pointer-events:none}.orbit-two{width:440px;height:440px;top:-30px;border-style:dashed;opacity:.55}.signal{position:absolute;right:20px;top:4px;font-size:9px;letter-spacing:2px;display:flex;align-items:center;gap:9px;background:var(--paper);padding:8px 12px;border:1px solid var(--line);border-radius:20px}.preview-card{position:relative;background:#fff;border:1px solid #dae4d8;border-radius:16px;padding:26px;box-shadow:0 20px 50px #1f423411;transform:rotate(-2deg)}.card-top{display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:650}.pill{font-size:10px;color:#537049;background:#eef4e6;padding:3px 8px;border-radius:5px;font-weight:400}.preview-title{font-size:19px;font-weight:650;margin:23px 0}.preview-chart>div{display:flex;align-items:center;gap:12px;font-size:11px;margin:13px 0}.preview-chart 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#dce3d5;margin-top:22px;padding-top:18px}.audit-heading{font-size:10px;color:#516648;letter-spacing:1px}.audit p{font-size:11px;color:#7d8875;margin:8px 0 0}.capabilities{display:grid;grid-template-columns:1fr 1fr;gap:18px}.capabilities article{display:flex;justify-content:space-between;gap:17px;background:#fff;padding:29px;border:1px solid var(--line);border-radius:12px}.cap-icon{display:flex;justify-content:center;align-items:center;width:32px;height:32px;border-radius:8px;background:#edf3e7;color:#50764f;font-size:20px}.capabilities h3{font-size:16px;margin:16px 0 9px}.capabilities p{font-size:12px;color:var(--muted);margin:0;max-width:300px}.status{font-size:9px;padding:4px 8px;align-self:flex-start;border-radius:5px;white-space:nowrap}.built{background:#e8f2e0;color:#52744d}.pending{background:#f1f2ed;color:#7b8173}.faq-section{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line);padding:18px 0}.faq-list details:first-child{padding-top:0}.faq-list summary{cursor:pointer;font-size:14px;list-style:none;display:flex;justify-content:space-between;gap:12px}.faq-list summary:after{content:"+";color:#698256;font-size:20px}.faq-list details[open] summary:after{content:"−"}.faq-list p{font-size:13px;color:var(--muted);margin:15px 24px 0 0}.final-section{text-align:center;background:#eaf0e3;border:1px solid #dce5d4;border-radius:18px;padding:60px 20px;margin-top:15px;margin-bottom:75px}.final-section .eyebrow{justify-content:center;font-size:10px}.final-section h2{margin-bottom:25px}footer{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:30px 0;border-top:1px solid var(--line)}footer .brand{font-size:22px}footer>span{font-size:10px;color:#7f8a7a}.skip{position:absolute;left:16px;top:-80px;background:#fff;padding:10px;z-index:10}.skip:focus{top:10px}
@media(min-width:1500px){.hero{padding-top:110px;padding-bottom:115px}}@media(max-width:1000px){.shell{width:calc(100% - 48px)}.hero{gap:25px}.brand-tag{display:none}.hero h1{font-size:42px}.preview-card{padding:20px}.preview-title{font-size:16px}.preview-bar.b{width:100px}.preview-bar.a{width:70px}.preview-bar.c{width:45px}.orbit-two{width:340px;height:340px}.orbit-one{width:290px;height:290px}.workflow{gap:12px}.workflow article{padding:20px 16px}.demo-controls,.demo-results{padding:26px}.capabilities article{padding:22px}.faq-section{gap:35px}}
@media(max-width:700px){.shell{width:calc(100% - 36px)}.nav{height:76px;gap:12px}.brand{font-size:23px}.brand-icon{width:30px;height:30px}nav{display:none}.nav-cta{padding:8px 12px;font-size:11px}.hero{grid-template-columns:1fr;padding-top:48px;padding-bottom:50px;gap:35px}.hero h1{font-size:clamp(31px,8.5vw,45px);letter-spacing:-1.5px}.hero-desc{font-size:16px}.hero .eyebrow{font-size:10px;letter-spacing:1px}.hero-principles{margin-top:24px;gap:19px}.hero-visual{min-height:345px;padding-top:45px;max-width:440px;width:100%;margin:auto}.preview-title{font-size:18px}.preview-bar.b{width:130px}.preview-bar.a{width:85px}.preview-bar.c{width:55px}.trace-card{margin-left:20px}.section-heading h2,.demo-heading h2,.final-section h2{font-size:29px}.problem{padding:48px 0}.section-heading{margin-bottom:30px}.three-grid{grid-template-columns:1fr;gap:26px}.three-grid p{max-width:none}.three-grid article{padding-top:15px}.three-grid h3{margin:9px 0}.section{padding-block:50px}.workflow{grid-template-columns:1fr 1fr;gap:12px}.workflow h3{font-size:15px;margin-top:15px}.workflow p{font-size:11px;margin-bottom:18px}.demo-section{padding:48px 0}.demo-heading{display:block;margin-bottom:25px}.demo-heading>p{margin-top:20px}.demo-panel{grid-template-columns:1fr}.demo-controls{border-right:0;border-bottom:1px solid #d9e2d4;padding:25px}.demo-results{padding:25px}.demo-controls .model-note{max-width:400px}.capabilities{grid-template-columns:1fr}.capabilities article{padding:23px}.faq-section{grid-template-columns:1fr;gap:10px}.faq-list summary{font-size:13px}.final-section{padding-block:40px;margin-bottom:45px}footer{flex-wrap:wrap;padding-block:24px;gap:12px}footer .brand{width:100%}.eyebrow{font-size:10px;letter-spacing:1.7px;margin-bottom:20px}.bar-line>span{width:106px;font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
/* 装饰圆环在窄屏中裁切，避免 320px 视口横向溢出。 */
.hero-visual{overflow:hidden}
.studio-cmd{margin:18px 0;background:#142e38;color:#f5f7f3;border-radius:12px;padding:16px 18px;overflow:auto}
.studio-cmd code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.7;white-space:pre}

/* 仓库架构图保持原始比例；原图链接便于手机放大阅读。 */
.architecture-section{border-top:1px solid var(--line)}.architecture-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:32px}.architecture-heading .section-heading{margin-bottom:0}.diagram-link{flex-shrink:0;font-size:13px;border:1px solid #bdcbbd;border-radius:8px;padding:10px 18px;white-space:nowrap}.diagram-link span{margin-left:15px}.architecture-figure{margin:0}.diagram-image-link{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;overflow:hidden}.diagram-image-link img{display:block;width:100%;height:auto}.architecture-figure figcaption{font-size:11px;color:var(--muted);margin-top:15px;line-height:1.9}@media(max-width:700px){.architecture-heading{display:block;margin-bottom:24px}.diagram-link{display:inline-flex;align-items:center;margin-top:20px;font-size:12px}.diagram-image-link{padding:5px;border-radius:9px}}

/* 定位愿景板块：复用 capabilities 网格，愿景清单为双列卡片。 */
.vision-section{border-bottom:1px solid var(--line)}
.vision-lead{font-size:17px;max-width:640px;margin:0 0 40px}
.vision-future{margin-top:56px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px}
.vision-future h3{font-size:20px;margin:0 0 20px;letter-spacing:-.5px}
.vision-future ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:18px}
.vision-future li{font-size:13px;color:var(--muted);line-height:1.9;padding-left:26px;position:relative}
.vision-future li:before{content:"→";position:absolute;left:0;color:#698256}
@media(max-width:700px){.vision-lead{font-size:15px;margin-bottom:28px}.vision-future{margin-top:36px;padding:24px}.vision-future ul{grid-template-columns:1fr;gap:14px}.vision-future h3{font-size:17px}}
.studio-nav{min-height:72px;height:auto;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding:12px 0}
.studio-nav nav{display:flex;flex-wrap:wrap;gap:12px 18px;font-size:14px}
.studio-nav a[aria-current="page"]{color:#397251;font-weight:650}
.site-footer{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;padding:24px 0;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
@media(max-width:700px){.studio-nav{min-height:64px}.studio-nav nav{display:flex}}