:root{
  --bg:#0b0d10;--panel:#111419;--panel2:#151922;--text:#f4f6f8;--muted:#8e98a8;
  --line:#242a33;--accent:#8ea8ff;--paper:#f5f6f8;--ink:#14171b;--ink2:#5f6876;
  --soft:#eceff3;--success:#4e946c;--radius:18px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#f6f7f9;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.container{width:min(1180px,92%);margin:auto}
.site-header{position:sticky;top:0;z-index:60;height:72px;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid #e6e9ee}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:38px;height:38px;border-radius:11px;background:#111419;color:#fff;display:grid;place-items:center;font-size:13px;font-weight:700}
.brand-copy strong{display:block;font-size:15px}.brand-copy span{display:block;font-size:9px;color:#9199a5;letter-spacing:1.7px;margin-top:2px}
.nav{display:flex;align-items:center;gap:26px}.nav a{font-size:12px;color:#5d6672}.nav a:hover,.nav a.active{color:#111419}.nav-cta{padding:10px 15px;border-radius:999px;background:#111419!important;color:#fff!important}.mobile-nav{display:none}
.hero{background:radial-gradient(circle at 70% 20%,rgba(116,145,255,.2),transparent 25%),radial-gradient(circle at 25% 10%,rgba(190,205,255,.09),transparent 20%),linear-gradient(180deg,#0b0d10,#10141c);color:#fff;overflow:hidden}
.hero-inner{min-height:650px;display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;padding:72px 0}
.eyebrow{font-size:10px;letter-spacing:2.6px;color:#91a7e8;margin-bottom:18px}.hero h1{font-size:62px;line-height:1.03;letter-spacing:-2.6px;margin:0;font-weight:600}.hero h1 span{display:block;color:#9eb2ff;margin-top:8px}
.hero p{font-size:14px;line-height:2;color:rgba(255,255,255,.56);max-width:620px;margin:24px 0 0}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.btn{border:1px solid #dfe3e9;background:#fff;color:#171a1f;border-radius:10px;padding:11px 16px;font-size:12px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:.2s}.btn:hover{transform:translateY(-1px)}.btn.primary{background:#111419;color:#fff;border-color:#111419}.hero .btn.primary{background:#eef2ff;color:#111419;border-color:#eef2ff}.hero .btn.secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.16)}
.hero-app{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:24px;padding:10px;box-shadow:0 45px 120px rgba(0,0,0,.35)}
.app-window{background:#f5f6f8;border-radius:16px;overflow:hidden}.app-bar{height:48px;background:#fff;border-bottom:1px solid #e8ebef;display:flex;align-items:center;justify-content:space-between;padding:0 14px}
.dots{display:flex;gap:6px}.dots i{width:7px;height:7px;border-radius:50%;background:#d7dbe1}.app-title{height:7px;width:120px;background:#eceff3;border-radius:999px}.app-chip{width:54px;height:22px;background:#111419;border-radius:7px}
.app-body{display:grid;grid-template-columns:1.35fr .65fr;min-height:360px}.app-canvas{display:flex;align-items:center;justify-content:center;background:#eceff3;padding:30px}
.fake-image{width:88%;aspect-ratio:4/3;border-radius:10px;position:relative;overflow:hidden;background:linear-gradient(140deg,#1a2232,#4f6790)}
.fake-image:before{content:"";position:absolute;width:150px;height:150px;border-radius:50%;right:12%;top:12%;background:radial-gradient(circle,rgba(255,255,255,.65),rgba(170,195,255,.1) 60%,transparent 70%)}
.fake-image:after{content:"";position:absolute;width:120%;height:55%;left:-10%;bottom:-17%;transform:rotate(-7deg);background:linear-gradient(145deg,#182538,#354b68);border-radius:50% 50% 0 0}
.app-side{background:#fff;border-left:1px solid #e8ebef;padding:20px 16px}.line{height:6px;border-radius:999px;background:#eceff3;margin-bottom:14px}.line.short{width:48%}.input{height:36px;border:1px solid #e4e8ed;border-radius:8px;background:#f7f8fa;margin-bottom:10px}.range{height:4px;background:linear-gradient(90deg,#7290ff 64%,#e4e8ed 64%);border-radius:999px;margin:20px 0}.fake-btn{height:38px;background:#111419;border-radius:8px;margin-top:18px}
.section{padding:96px 0}.section-head{display:grid;grid-template-columns:.65fr 1.35fr;gap:60px;margin-bottom:42px}.section-kicker{font-size:10px;letter-spacing:2px;color:#9199a4}.section-head h2{font-size:36px;letter-spacing:-1.2px;margin:0}.section-head p{font-size:12px;color:#707987;line-height:2;margin-top:12px;max-width:680px}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature-card{background:#fff;border:1px solid #e3e7ec;border-radius:16px;padding:24px;min-height:210px}.feature-icon{width:38px;height:38px;border-radius:10px;background:#111419;color:#fff;display:grid;place-items:center;font-size:12px}.feature-card h3{font-size:16px;margin:28px 0 0}.feature-card p{font-size:11px;color:#79828f;line-height:1.9;margin-top:9px}
.process{background:#111419;color:#fff}.process .section-kicker{color:#7585ad}.process .section-head p{color:#818b9b}.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#252b35;border:1px solid #252b35}.process-item{background:#151922;padding:25px;min-height:190px}.process-item b{font-size:10px;color:#7f93cf}.process-item h3{font-size:15px;margin:30px 0 0}.process-item p{font-size:10px;color:#7d8695;line-height:1.9;margin-top:9px}
.article-grid{display:grid;grid-template-columns:1.3fr .85fr .85fr;gap:18px}.article{background:#fff;border:1px solid #e3e7ec;border-radius:16px;padding:24px;min-height:230px}.article.featured{background:#18202d;color:#fff}.article small{font-size:9px;letter-spacing:1.8px;color:#8d98aa}.article h3{font-size:20px;margin:28px 0 0;line-height:1.4}.article p{font-size:11px;line-height:1.9;color:#7b8490;margin-top:10px}.article.featured p{color:#9da7b4}
.site-footer{background:#0d1014;color:#737d8a;padding:36px 0}.footer-inner{display:flex;justify-content:space-between;gap:30px;align-items:flex-end}.footer-title{color:#d8dde5;font-size:12px;margin-bottom:6px}.footer-copy,.footer-meta{font-size:10px;line-height:1.9}.footer-meta{text-align:right}
.page-hero{padding:64px 0 42px;background:#fff;border-bottom:1px solid #e4e8ed}.page-hero h1{font-size:44px;letter-spacing:-1.8px;margin:0}.page-hero p{font-size:12px;color:#737c88;line-height:1.9;max-width:700px;margin-top:12px}
.tool-wrap{padding:38px 0 90px}.tool-shell{background:#fff;border:1px solid #dfe4ea;border-radius:20px;overflow:hidden;box-shadow:0 24px 70px rgba(32,42,55,.08)}.tool-top{height:58px;border-bottom:1px solid #e7ebef;display:flex;align-items:center;justify-content:space-between;padding:0 22px}.tool-top b{font-size:13px}.tool-top span{font-size:9px;color:#8f98a4;letter-spacing:1.5px}
.upload-zone{min-height:260px;margin:22px;border:1.5px dashed #cbd3dc;border-radius:16px;background:#fafbfc;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:22px}.upload-icon{width:58px;height:58px;border-radius:15px;background:#111419;color:#fff;display:grid;place-items:center;font-size:22px}.upload-zone h3{font-size:16px;margin:15px 0 0}.upload-zone p{font-size:10px;color:#87909c;margin:7px 0 0}.file-btn{margin-top:15px;background:#111419;color:#fff;padding:10px 16px;border-radius:9px;font-size:11px;cursor:pointer}.file-btn input{display:none}
.editor{display:none;grid-template-columns:1.3fr .7fr;border-top:1px solid #e7ebef}.preview-panel{background:#eef1f4;min-height:520px;padding:28px;display:flex;flex-direction:column;justify-content:center}.preview-frame{min-height:390px;display:flex;align-items:center;justify-content:center}.preview-frame img{max-width:100%;max-height:390px;border-radius:8px;box-shadow:0 18px 50px rgba(35,45,60,.12)}.file-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.pill{font-size:9px;padding:7px 9px;border-radius:8px;background:#fff;color:#66707e;border:1px solid #e0e4e9}
.settings{padding:28px;background:#fff}.settings h3{font-size:14px;margin:0 0 22px}.field{margin-bottom:18px}.field label{display:flex;justify-content:space-between;font-size:10px;color:#707987;margin-bottom:7px}.field input,.field select{width:100%;height:42px;border:1px solid #dfe4ea;background:#fafbfc;border-radius:9px;padding:0 11px;outline:0}.field input[type=range]{height:auto;padding:0}.size-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.actions .btn{width:100%}.result-box{display:none;margin-top:16px;border:1px solid #cfe6d9;background:#f2fbf6;border-radius:11px;padding:14px}.result-box b{font-size:11px;color:#397655;display:block}.result-box span{font-size:9px;color:#6a8576;display:block;margin-top:4px}.result-box .btn{margin-top:10px;width:100%;background:#397655;color:#fff;border-color:#397655}
.info-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px}.info-nav{position:sticky;top:100px;align-self:start;border-left:1px solid #dfe4ea}.info-nav a{display:block;padding:9px 14px;font-size:11px;color:#7c8591}.prose{background:#fff;border:1px solid #e3e7ec;border-radius:16px;padding:30px}.prose h2{font-size:24px;margin:0 0 14px}.prose h3{font-size:16px;margin:30px 0 10px}.prose p,.prose li{font-size:12px;line-height:2;color:#6f7885}.prose ul{padding-left:20px}.info-table{border-top:1px solid #e2e6eb;margin-top:20px}.info-row{display:grid;grid-template-columns:150px 1fr;padding:14px 0;border-bottom:1px solid #e2e6eb;font-size:11px}.info-row span:first-child{color:#8a939f}
.notfound{min-height:70vh;display:grid;place-items:center;text-align:center}.notfound .code{font-size:100px;letter-spacing:-6px;font-weight:700;color:#d7dce3}.notfound h1{font-size:25px;margin:10px 0}.notfound p{font-size:12px;color:#7e8793;margin-bottom:20px}
@media(max-width:900px){.nav{display:none}.mobile-nav{display:block;font-size:11px}.hero-inner,.section-head,.info-layout{grid-template-columns:1fr}.hero h1{font-size:44px}.hero-inner{gap:38px}.feature-grid{grid-template-columns:1fr 1fr}.process-grid{grid-template-columns:1fr 1fr}.article-grid{grid-template-columns:1fr}.editor{grid-template-columns:1fr}.settings{border-top:1px solid #e7ebef}.info-nav{display:none}}
@media(max-width:620px){.hero-app{display:none}.hero-inner{min-height:520px}.feature-grid,.process-grid{grid-template-columns:1fr}.page-hero h1{font-size:34px}.footer-inner{display:block}.footer-meta{text-align:left;margin-top:14px}.size-grid,.actions{grid-template-columns:1fr}}