:root{color-scheme:dark;--ink:#f4f5f9;--muted:#adb5c8;--line:#ffffff22;--purple:#a5a0db;--blue:#9dbbdf;--canvas:#0c1121}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:var(--canvas);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible{outline:2px solid #aca8ee;outline-offset:6px}[hidden]{display:none!important}
.shell{width:min(1180px,calc(100% - 96px));margin-inline:auto}
.skip-link{position:absolute;left:24px;top:-100px;z-index:50;background:#333b5a;padding:12px}.skip-link:focus{top:12px}
.site-header{display:flex;justify-content:space-between;align-items:center;gap:30px;min-height:116px;padding-block:20px;border-bottom:1px solid var(--line)}
.brand-lockup{display:flex;align-items:center;gap:28px;min-width:0}.brand{display:inline-flex;align-items:center;flex-shrink:0}.brand img{display:block;width:178px;height:auto}
.brand-tagline{padding-left:28px;margin:0;border-left:1px solid var(--line);font-size:22px;font-weight:500;line-height:1.5;letter-spacing:.005em}
.contact-qr{display:flex;align-items:center;gap:16px;flex-shrink:0}.qr-frame{width:112px;aspect-ratio:1;display:grid;place-items:center;flex-shrink:0;border:1px dashed #75819988;padding:8px;background:#ffffff03}
.qr-placeholder{text-align:center;font-size:10px;line-height:1.85;color:#9ba5bc}.qr-frame img{display:block;width:100%;height:100%;object-fit:contain}.contact-qr.is-ready .qr-frame{background:white;border-color:#fff}
.qr-caption{display:flex;flex-direction:column;gap:9px}.qr-caption strong{font-weight:500;font-size:14px;color:#e1e6f1}.qr-caption>span{font-size:10px;color:#8996ae}.contact-qr-header .qr-frame{width:70px}.contact-qr-header .qr-caption strong{font-size:12px}
.hero{position:relative;isolation:isolate;overflow:hidden;background:linear-gradient(105deg,#0c1121 0%,#0d1223 60%,#15182d 100%)}
.hero-inner{position:relative;padding-top:94px;padding-bottom:0}.hero-copy{position:relative;z-index:2;width:75%;padding-bottom:76px}
.hero h1{margin:0;font-size:clamp(44px,5.05vw,68px);line-height:1.38;letter-spacing:-.025em;font-weight:550}.hero h1 em{font-style:normal;color:#aca8db}
.hero-lead{margin:28px 0 0;color:#aab9d1;font-size:19px;font-weight:400;line-height:1.7;letter-spacing:.02em}
.hero-process{position:relative;z-index:2;display:flex;align-items:center;gap:32px;border-top:1px solid #ffffff26;padding:28px 0 30px;font-size:14px;color:#c0c8d8}
.hero-process>span{display:flex;align-items:center;gap:13px}.hero-process small{color:#697b98;font:11px/1.3 Arial,sans-serif;letter-spacing:.06em}.hero-process>b{color:#6e7ea0;font-weight:400}
.hero-document-field{position:absolute;z-index:0;right:-6%;top:-6%;height:116%;width:57%;opacity:.68;transform:rotate(-8deg);mask-image:linear-gradient(90deg,transparent,black 26%,black);pointer-events:none}
.document-sheet{position:absolute;top:12%;width:29%;height:80%;border:1px solid #a4b1d62b;background:linear-gradient(140deg,#28314c18,#1d254400);padding:30px 24px;transform:skewY(7deg)}
.sheet-one{left:0;top:24%;opacity:.48}.sheet-two{left:32%;top:2%}.sheet-three{left:64%;top:18%;opacity:.62}
.document-sheet>span{display:block;height:4px;width:40%;background:#9198c5aa;margin-bottom:26px}.document-sheet i{display:block;height:2px;background:#7a86ab4d;margin:12px 0}.document-sheet i:nth-of-type(3n){width:73%}.document-sheet i:nth-of-type(4n){width:88%}.document-sheet b{display:block;height:39px;margin:26px 0;border-block:1px solid #98a6cc42;background:linear-gradient(90deg,#6e66a322,transparent)}
.document-guide{position:absolute;left:0;width:100%;height:1px;background:linear-gradient(90deg,transparent,#728cca77,transparent);transform:rotate(8deg)}.guide-one{top:34%;box-shadow:0 0 45px 8px #8284ca16}.guide-two{top:67%;opacity:.4}
.features-section{background:#f2f3f7;color:#15243d;border-block:1px solid #e0e3ec}
.features{display:grid;grid-template-columns:1fr 1fr;padding-block:60px;gap:0}
.feature{display:flex;gap:25px;padding:4px 46px 4px 0}.feature+.feature{border-left:1px solid #ced3df;padding-left:46px;padding-right:0}
.section-number{font:13px/1.5 Arial,sans-serif;color:#7b83a0;padding-top:5px;font-variant-numeric:tabular-nums}.feature-content{min-width:0}
.feature h2{font-size:28px;line-height:1.45;margin:0 0 23px;font-weight:550;letter-spacing:-.02em}
.feature p{font-size:14px;line-height:1.9;color:#5b657a;margin:0}.feature .coverage-count{display:flex;align-items:center;gap:15px;color:#565082;font-size:15px;font-weight:600;margin-bottom:10px}.coverage-count span{height:14px;width:1px;background:#b8b5cc}
.formats{display:grid;grid-template-columns:repeat(3,1fr);list-style:none;margin:26px 0 0;padding:0;gap:0;min-width:270px}.formats li{color:#465472;font-size:14px;padding:9px 25px 9px 0;border-top:1px solid #d4d9e4}.formats li:nth-child(-n+3){border-top:0}
.upload-section{padding-block:76px 80px}.section-heading{display:flex;align-items:baseline;justify-content:space-between;gap:28px;margin-bottom:30px}.heading-label{display:flex;gap:15px;color:#99a6bf;font-size:13px}.heading-label span{font-size:11px;color:#647591;font-variant-numeric:tabular-nums}
.section-heading h2{margin:0;font-size:30px;font-weight:500;line-height:1.5;letter-spacing:-.02em}.demo-mount{position:relative;min-width:0}
.annotation-section{padding-block:70px 80px;background:#101629;border-top:1px solid #ffffff16}
.company-section{background:#e8ebf2;color:#172640}.company-inner{display:grid;grid-template-columns:1fr 1.15fr;align-items:center;gap:65px;padding-block:69px 72px}
.eyebrow{margin:0 0 18px;color:#6e7690;font-size:12px;letter-spacing:.12em}.company-heading h2{margin:0;font-size:32px;font-weight:550}.company-heading>p:last-child{font-size:14px;color:#6a748a;margin:16px 0 0}.company-copy>p{font-size:20px;font-weight:400;line-height:1.9;margin:0 0 26px;color:#3a475f}.company-copy ul{display:flex;flex-wrap:wrap;gap:0;list-style:none;padding:0;margin:0}.company-copy li{font-size:12px;color:#69768e;padding:0 20px;border-right:1px solid #bcc4d3}.company-copy li:first-child{padding-left:0}.company-copy li:last-child{border:0;padding-right:0}
.site-footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:35px;padding-block:57px 25px}.footer-copy .brand img{width:154px}.footer-copy p{font-size:13px;color:#a6b2c9;margin:22px 0 12px}.footer-copy small{font-size:11px;color:#8591a9}.contact-qr-footer .qr-frame{width:115px}.footer-legal{display:flex;align-items:center;justify-content:space-between;gap:12px 30px;flex-wrap:wrap;flex-basis:100%;border-top:1px solid #ffffff1c;padding-top:24px;margin-top:10px;color:#8390a8;font-size:11px;line-height:1.8}.filing-placeholders{display:flex;flex-wrap:wrap;align-items:center;gap:8px 25px}.public-security-filing{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.public-security-filing img{width:auto;height:1.2em;flex-shrink:0}
.footer-contact{display:flex;flex-direction:column;gap:6px;margin-top:16px;color:#a6b2c9;font-size:12px;font-style:normal;line-height:1.8;overflow-wrap:anywhere}
@media(min-width:1500px){.hero-document-field{right:3%;width:52%}}
@media(max-width:1150px){.brand img{width:148px}.brand-lockup{gap:22px}.brand-tagline{font-size:20px;padding-left:22px}.contact-qr-header .qr-caption{display:none}.feature{padding-right:32px}.feature+.feature{padding-left:32px}.hero-process{gap:24px}}
@media(max-width:900px){.shell{width:calc(100% - 56px)}.brand-tagline{font-size:18px}.site-header{gap:20px}.hero-inner{padding-top:74px}.hero-copy{width:88%;padding-bottom:63px}.hero h1{font-size:54px}.hero-document-field{right:-18%;width:70%;opacity:.4}.hero-process{gap:18px;font-size:12px}.hero-process>span{gap:8px}.feature{gap:16px}.feature h2{font-size:25px}.feature .coverage-count{font-size:13px;gap:10px}.formats{min-width:200px}.feature p{font-size:13px}.company-inner{gap:35px}.company-copy>p{font-size:18px}.section-heading h2{font-size:26px}}
@media(max-width:650px){
 .shell{width:calc(100% - 40px)}.site-header{min-height:110px;padding-block:18px;gap:16px}.brand-lockup{flex:1;flex-direction:column;align-items:flex-start;gap:10px}.brand img{width:129px}.brand-tagline{padding-left:0;border:0;font-size:14px;line-height:1.55;max-width:235px}.contact-qr-header .qr-frame{width:61px;padding:5px}.contact-qr-header .qr-placeholder{font-size:8px}
 .hero-inner{padding-top:60px}.hero-copy{width:100%;padding-bottom:49px}.hero h1{font-size:clamp(32px,8.4vw,49px);line-height:1.42}.hero-lead{font-size:14px;margin-top:22px}.hero-document-field{width:90%;right:-36%;top:-1%;opacity:.28}.document-sheet{padding:20px 12px}.hero-process{align-items:flex-start;flex-direction:column;gap:12px;padding-block:24px;font-size:13px}.hero-process>b{display:none}.hero-process>span{gap:14px}.hero-process small{font-size:10px}
 .features{grid-template-columns:1fr;padding-block:35px;gap:30px}.feature{padding:0;gap:18px}.feature+.feature{border-left:0;border-top:1px solid #ced3df;padding:29px 0 0}.feature h2{font-size:26px;margin-bottom:18px}.feature .coverage-count{font-size:14px}.feature p{font-size:13px}.formats{grid-template-columns:repeat(3,1fr);margin-top:17px;min-width:245px}.formats li{font-size:13px}.desktop-break{display:none}
 .upload-section{padding-block:42px 48px}.annotation-section{padding-block:42px 48px}.section-heading{display:block;margin-bottom:25px}.heading-label{font-size:12px;margin-bottom:12px}.section-heading h2{font-size:clamp(22px,5.5vw,27px)}
 .company-inner{grid-template-columns:1fr;gap:30px;padding-block:45px 48px}.company-heading h2{font-size:29px}.company-copy>p{font-size:17px}.company-copy li{padding-inline:14px}
 .site-footer{padding-block:38px 24px;gap:24px;align-items:flex-start}.footer-copy .brand img{width:131px}.footer-copy p{max-width:180px;line-height:1.8;font-size:12px}.contact-qr-footer{flex-direction:column;align-items:flex-start;gap:12px}.contact-qr-footer .qr-frame{width:96px}.contact-qr-footer .qr-caption strong{font-size:12px}.contact-qr-footer .qr-caption>span{font-size:9px}.footer-legal{font-size:10px;gap:9px;padding-top:20px}.filing-placeholders{gap:9px 20px}
}
/* 首屏品牌扫描：线条、字符与单色眼睛共用同一条扫描坐标。 */
.hero-document-field{right:0;top:0;width:min(54%,720px);height:calc(100% - 58px);opacity:1;transform:none;mask-image:none;display:flex;align-items:center;pointer-events:none}
.hero-scan-scene{display:block;width:100%;height:100%;overflow:visible}
.scan-document-top{fill:none;stroke:#727da5;stroke-width:3;opacity:.42}
.scan-bar{fill:none;stroke-width:1.6}
.scan-bar:not([stroke]){stroke:#626f98}.scan-bar:not([opacity]){opacity:.28}
.scan-label{fill:#c8cdf1;font-size:11px;font-weight:500;letter-spacing:1.2px}
.scan-tick{fill:none;stroke:#b7b7ee;stroke-width:1.2;stroke-linecap:round;stroke-linejoin:round}
.scan-line,.scan-halo,.scan-halo-wide{fill:none;stroke:url(#scan-line-light)}
.scan-line{stroke-width:1;opacity:.9}.scan-halo{stroke-width:16;opacity:.06}.scan-halo-wide{stroke-width:40;opacity:.025}
.scan-eye{color:#c2bef2}
@media(min-width:1500px){.hero-document-field{right:max(0px,calc((100vw - 1330px)/2));width:660px}}
@media(max-width:900px) and (min-width:651px){.hero-copy{padding-bottom:300px}.hero-document-field{top:292px;right:20px;width:calc(100% - 40px);height:264px;opacity:1}.scan-label{font-size:12px}}
@media(max-width:650px){.hero-copy{padding-bottom:276px}.hero-document-field{top:224px;right:12px;width:calc(100% - 24px);height:218px;opacity:.92}.scan-label{font-size:13px;letter-spacing:.6px}.scan-eye{color:#c2bef2}}
/* 覆盖数字 / 检查类别 / 文件格式：宽屏三栏，窄屏依次排列。 */
.features{grid-template-columns:minmax(0,1.06fr) minmax(0,1.22fr) minmax(0,.82fr);padding-block:62px;align-items:stretch}
.feature{gap:17px;padding:3px 29px 6px 0;min-width:0}
.feature+.feature{padding:3px 29px 6px;border-left:1px solid #ced3df;border-top:0}
.feature:last-child{padding-right:0}.feature-content{flex:1}
.feature h2{font-size:27px;line-height:1.48;margin-bottom:27px}
.coverage-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 16px;margin:30px 0 27px}
.coverage-metrics>div{display:flex;flex-direction:column;gap:8px;min-width:0}
.coverage-metrics dt{font-size:16px;font-weight:500;line-height:1.6;color:#3e4b67}
.coverage-metrics dd{display:flex;align-items:baseline;gap:5px;margin:0;order:-1;white-space:nowrap;color:#65588f}
.coverage-metrics strong{font-size:44px;font-weight:550;line-height:1.08;letter-spacing:-.045em;font-variant-numeric:tabular-nums}
.coverage-metrics dd>span{font-size:13px;font-weight:500;color:#79708e}
.feature .coverage-description{font-size:15px;line-height:1.9;color:#687185}
.check-categories{list-style:none;padding:0;margin:0;display:grid;gap:18px}
.check-categories h3{margin:0 0 5px;font-size:22px;line-height:1.35;font-weight:550;color:#20324e;letter-spacing:.01em}
.feature .check-categories p{font-size:13px;line-height:1.75;color:#777e8e;margin:0}
.category-more{font-size:13px;font-weight:400;color:#858b99;margin-left:8px}
.feature-formats .formats{min-width:0;grid-template-columns:repeat(2,minmax(0,1fr));margin-top:30px;column-gap:15px}
.feature-formats .formats li{font-size:16px;padding:16px 0;border-top:1px solid #d4d9e4}
.feature-formats .formats li:nth-child(-n+2){border-top:0}
@media(min-width:981px) and (max-width:1150px){.feature{gap:12px;padding-right:20px}.feature+.feature{padding-inline:20px}.feature:last-child{padding-right:0}.feature h2{font-size:24px}.coverage-metrics strong{font-size:38px}.coverage-metrics dt{font-size:14px}.coverage-metrics dd>span{font-size:11px}.check-categories h3{font-size:21px}}
@media(max-width:980px){.features{grid-template-columns:1fr;padding-block:42px;gap:32px}.feature,.feature+.feature{padding:0;border:0;gap:22px}.feature+.feature{border-top:1px solid #ced3df;padding-top:32px}.feature h2{font-size:28px}.coverage-metrics{grid-template-columns:repeat(4,minmax(0,1fr));margin-top:23px;gap:20px}.check-categories{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 32px}.feature-formats .formats{grid-template-columns:repeat(6,minmax(0,1fr));margin-top:20px;gap:15px}.feature-formats .formats li{border-top:0;padding:7px 0}}
@media(max-width:650px){.feature,.feature+.feature{gap:17px}.feature h2{font-size:26px}.coverage-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 14px}.coverage-metrics strong{font-size:42px}.coverage-metrics dt{font-size:15px}.feature .coverage-description{font-size:14px}.check-categories{grid-template-columns:1fr;gap:23px}.check-categories h3{font-size:23px}.feature .check-categories p{font-size:13px}.feature-formats .formats{grid-template-columns:repeat(3,minmax(0,1fr));gap:0 14px}.feature-formats .formats li{border-top:1px solid #d4d9e4;padding:12px 0;font-size:15px}.feature-formats .formats li:nth-child(-n+3){border-top:0}}
/* 2026-10-14 官方新版：AI 角标横式组合。保持图形高度，使用原始比例。 */
.brand img{width:auto;height:52px}.footer-copy .brand img{width:auto;height:44px}
@media(max-width:1150px){.brand img{width:auto;height:44px}}
@media(max-width:650px){.brand img{width:auto;height:38px}.footer-copy .brand img{width:auto;height:38px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}