@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700;800&display=swap');
:root{font-family:'Noto Sans SC',system-ui,sans-serif;color:#20252f;background:#f7f8fa;font-synthesis:none;--blue:#2859e8;--muted:#858b97;--line:#e7e9ee}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}[hidden]{display:none!important}a:focus-visible,button:focus-visible,select:focus-visible{outline:3px solid #8faaff;outline-offset:4px}.topbar{max-width:1240px;margin:auto;height:100px;display:flex;align-items:center;justify-content:space-between;padding:0 40px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:19px;letter-spacing:.02em}.brand-icon{display:inline-flex;align-items:center;justify-content:center;background:var(--blue);color:#fff;width:33px;height:35px;border-radius:10px;font:27px system-ui}.brand-sub{font-size:10px;color:#999eaa;letter-spacing:.15em;margin-left:7px;font-weight:500}.nav-link{font-size:13px;color:#555e6b}.nav-link span{margin-left:24px;color:var(--blue)}main{max-width:1160px;margin:auto}.hero{position:relative;min-height:494px;padding:60px 0 32px;overflow:hidden}.eyebrow{font-size:11px;letter-spacing:.15em;color:#747e8e;display:flex;align-items:center;gap:8px;font-weight:500}.eyebrow>span{width:6px;height:6px;border-radius:50%;background:var(--blue)}h1{font-size:53px;font-weight:700;line-height:1.4;letter-spacing:-.04em;margin:21px 0 16px}h1 em{color:var(--blue);font-style:normal}.intro{font-size:14px;line-height:1.9;color:#7e8693;margin:0 0 26px}.primary{background:var(--blue);border-radius:8px;padding:13px 20px;font-size:13px;color:white;display:inline-flex;gap:34px;align-items:center;box-shadow:0 5px 12px #2859e81a}.primary:hover{background:#1847d3}.hero-foot{display:flex;gap:14px;align-items:center;font-size:10px;color:#9a9faa;margin-top:31px}.hero-foot b{font-weight:400;color:#c0c4cc}.hero-art{position:absolute;width:470px;height:385px;right:5px;top:42px}.orbit{position:absolute;border:1px solid #e4e9f3;border-radius:50%;left:20px;top:42px;width:400px;height:300px;transform:rotate(-23deg)}.orbit-two{transform:rotate(32deg);width:360px;height:350px;left:53px;top:16px}.file-card{position:absolute;background:#fff;border:1px solid #e4e8f1;border-radius:17px;box-shadow:0 23px 60px #32528714;width:184px;height:244px}.back-card{left:206px;top:48px;transform:rotate(16deg);background:#edf2fd}.back-card span{display:block;color:#92a7d6;font-size:42px;margin:30px 25px}.back-card i{display:block;width:70px;background:#d9e2f6;height:5px;margin:12px 25px;border-radius:9px}.front-card{top:77px;left:112px;transform:rotate(-10deg);padding:29px}.fold{position:absolute;right:-1px;top:-1px;border:22px solid transparent;border-top-color:#f7f8fa;border-right-color:#f7f8fa;filter:drop-shadow(-1px 1px 0 #e4e8f1)}.art-arrow{background:#edf2ff;color:var(--blue);font:67px system-ui;border-radius:15px;width:85px;height:85px;display:flex;align-items:center;justify-content:center;margin:8px 0 26px}.art-line{height:6px;width:115px;background:#dce4f5;border-radius:6px;margin-bottom:10px}.art-line.short{width:75px;background:#edf0f6}.file-label{font-size:7px;color:#a1aec5;letter-spacing:.13em;margin-top:22px}.float-badge{position:absolute;bottom:35px;left:233px;padding:14px 21px;background:#fff;border-radius:12px;box-shadow:0 9px 30px #32528712;font-size:11px;color:#778391;transform:rotate(3deg)}.float-badge span{display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:#e6f6ee;color:#3d9b76;width:21px;height:21px;margin-right:9px}.tiny-plus{position:absolute;top:32px;left:87px;font-size:26px;color:#aabce9;font-weight:400}.art-dot{position:absolute;width:11px;height:11px;border:3px solid #b7c8f2;border-radius:50%;right:28px;top:210px}.library{border:1px solid var(--line);border-radius:16px;background:white;padding:32px 32px 0;margin-bottom:50px;scroll-margin-top:25px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end}.section-kicker{font-size:9px;letter-spacing:.2em;color:#8e99ac}h2{font-size:23px;margin:7px 0 0;letter-spacing:-.03em}h2 span{display:inline-block;vertical-align:middle;background:#eef2fc;color:var(--blue);font:500 11px system-ui;border-radius:6px;padding:5px 8px;margin-left:8px}.section-heading>p{font-size:11px;color:#9ba1ad;margin-bottom:4px}.toolbar{display:flex;gap:20px;margin:28px 0 22px}.search{display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:#fafbfc;border-radius:8px;padding:0 13px;flex:1;color:#a1a8b5}.search:focus-within{border-color:#7999f5;outline:2px solid #e8eeff}input{width:100%;height:43px;border:0;outline:none;background:transparent;font-size:12px;color:#313c50}input::placeholder{color:#a3a9b3}.sort-label{display:flex;align-items:center;gap:12px;font-size:11px;color:#a1a6b0}.sort-label select{border:1px solid var(--line);border-radius:8px;background:white;color:#5d6572;font-size:11px;padding:12px 30px 12px 13px}.filter-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:23px}.filters{display:flex;gap:8px;flex-wrap:wrap}.filter{border:0;background:#f7f8fa;color:#7e8797;border-radius:6px;font-size:11px;padding:8px 14px}.filter[aria-pressed=true]{background:#edf2ff;color:var(--blue);font-weight:500}.result-count{font-size:10px;color:#a0a6b1}.list-head,.file-row{display:grid;grid-template-columns:minmax(0,1fr) 110px 140px 83px;align-items:center;gap:16px}.list-head{border-block:1px solid #eff0f4;padding:12px 15px;color:#999faa;font-size:10px;background:#fcfcfd}.empty{min-height:254px;display:flex;align-items:center;justify-content:center;flex-direction:column;padding:32px 15px}.empty-icon{display:flex;align-items:center;justify-content:center;width:67px;height:67px;border-radius:19px;background:#f4f7fc;color:#a9b9d9;margin-bottom:17px}.empty h3{font-size:14px;color:#677284;margin:0 0 9px;font-weight:500}.empty p{font-size:11px;color:#a2a9b4;text-align:center;line-height:1.8;margin:0}.reset{background:#eef2ff;color:var(--blue);border:0;padding:7px 13px;margin-top:16px;border-radius:6px;font-size:11px}.library-note{border-top:1px solid #eff0f4;display:flex;align-items:center;gap:8px;color:#a0a7b3;font-size:10px;padding:17px 0}.note-icon{width:13px;height:13px;border:1px solid #b4bbc7;border-radius:50%;display:inline-flex;justify-content:center;align-items:center;font:10px serif}.file-row{border-bottom:1px solid #f0f1f5;padding:22px 15px}.file-row:last-child{border-bottom:0}.file-info{display:flex;gap:15px;min-width:0}.file-type{display:flex;align-items:center;justify-content:center;width:44px;height:49px;flex-shrink:0;border-radius:9px;background:#eef2ff;color:var(--blue);font:600 10px system-ui}.file-detail{min-width:0}.file-detail h3{font-size:13px;font-weight:500;margin:0 0 5px;overflow-wrap:anywhere}.file-detail p{font-size:11px;color:#9098a6;margin:0 0 7px}.category-tag{font-size:9px;color:#8190aa;background:#f4f6fa;padding:2px 6px;border-radius:4px}.file-size,.file-date{font-size:11px;color:#8a93a2}.download{font-size:11px;color:var(--blue);padding:9px 12px;border:1px solid #e1e8fc;border-radius:7px;text-align:center}.download:hover{background:#edf2ff}footer{max-width:1160px;margin:0 auto 33px;display:flex;align-items:center;gap:25px}.footer-brand{font-size:12px;gap:7px;color:#6d7787}.footer-brand .brand-icon{width:23px;height:24px;border-radius:7px;font-size:19px;background:#a9b4c8}footer p{font-size:10px;color:#a1a8b4}footer .back-top{margin-left:auto;font-size:10px;color:#8b94a4}@media(min-width:1500px){main,footer{max-width:1180px}.hero{min-height:540px;padding-top:77px}.hero-art{top:60px}}@media(max-width:1240px){main,footer{margin-left:40px;margin-right:40px}.hero-art{right:0}}@media(max-width:800px){.brand-sub{display:none}.hero-art{right:-75px;transform:scale(.8);transform-origin:right center;opacity:.65}.hero{padding-top:45px}h1{font-size:44px}.hero> :not(.hero-art){position:relative;z-index:1}.intro{color:#687587}.library{padding:25px 23px 0}.list-head,.file-row{grid-template-columns:minmax(0,1fr) 80px 75px}.list-head>:nth-child(3),.file-date{display:none}}@media(max-width:560px){.topbar{height:76px;padding:0 22px}.brand{font-size:16px}.brand-icon{width:29px;height:31px}.nav-link{font-size:11px}.nav-link span{margin-left:10px}main,footer{margin-left:20px;margin-right:20px}.hero{padding-top:35px;min-height:438px}.eyebrow{font-size:10px}h1{font-size:38px;margin-top:20px}.intro{font-size:12px}.hero-art{transform:scale(.5);right:-77px;top:77px;opacity:.4;pointer-events:none}.hero-foot{margin-top:28px}.library{padding:23px 17px 0;border-radius:12px;margin-bottom:28px}.section-heading>p{display:none}h2{font-size:21px}.toolbar{gap:10px;flex-direction:column;margin-top:23px}.sort-label{align-self:flex-end}.sort-label select{padding:8px 15px}.filter-row{gap:10px;margin-bottom:18px}.result-count{white-space:nowrap}.list-head{padding:11px 3px;grid-template-columns:1fr 65px}.list-head>:nth-child(2){display:none}.file-row{padding:18px 0;grid-template-columns:1fr 65px;gap:10px}.file-size{display:none}.file-info{gap:10px}.file-type{width:35px;height:42px;font-size:8px}.file-detail h3{font-size:11px}.file-detail p{font-size:10px}.download{padding:8px;font-size:10px}.empty{min-height:245px}.empty p{max-width:220px}.library-note{font-size:9px;line-height:1.8}footer{gap:12px;flex-wrap:wrap}footer p{order:3;width:100%;margin:0;font-size:9px}.footer-brand{font-size:11px}.primary{font-size:12px;padding:12px 18px}}