:root{
  --primary:#1468ff;--primary2:#3b82f6;--primary3:#eaf2ff;
  --navy:#0f2e52;--navy2:#123d6c;--bg:#f5f7fb;--card:#fff;
  --text:#172033;--muted:#7b8799;--border:#e7ecf3;
  --green:#18b681;--orange:#ff9f32;--red:#ff5a5f;--purple:#7b61ff;
  --shadow:0 8px 26px rgba(20,45,90,.065);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);font-family:"PingFang SC","Microsoft YaHei",Inter,Arial,sans-serif;color:var(--text);font-size:14px}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
img{max-width:100%;display:block}
.topbar{height:64px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 max(20px,calc((100% - 1440px)/2));gap:34px;position:sticky;top:0;z-index:30}
.brand{display:flex;align-items:center;gap:9px;color:var(--primary);font-weight:800;font-size:19px;white-space:nowrap}
.brand-logo{width:30px;height:30px;border-radius:9px;background:linear-gradient(145deg,var(--primary),#5aa2ff);display:grid;place-items:center;color:#fff;box-shadow:0 7px 16px rgba(20,104,255,.2)}
.topnav{display:flex;align-items:center;gap:30px;flex:1;height:100%}
.topnav a{height:100%;display:flex;align-items:center;border-bottom:2px solid transparent;color:#39465a}
.topnav a:hover,.topnav a.active{color:var(--primary);border-bottom-color:var(--primary)}
.top-actions{display:flex;gap:10px}
.btn{border:0;border-radius:7px;background:var(--primary);color:#fff;padding:9px 18px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;transition:.18s}
.btn:hover{filter:brightness(.97);transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--primary);border:1px solid #91b6ff}
.btn-danger{background:var(--red)}
.btn-sm{padding:6px 11px;font-size:12px}
.page{max-width:1440px;margin:0 auto;padding:18px 18px 34px}
.hero{min-height:310px;border-radius:14px;background:
 radial-gradient(circle at 75% 30%,rgba(255,255,255,.7),transparent 28%),
 linear-gradient(110deg,#f3f8ff,#e5efff 70%,#f7fbff);
 border:1px solid #e5edfb;display:grid;grid-template-columns:1.2fr .8fr;align-items:center;padding:38px 54px;overflow:hidden}
.hero h1{font-size:36px;margin:0 0 11px;letter-spacing:.5px}
.hero .sub{font-size:20px;letter-spacing:5px;margin-bottom:12px}
.hero .desc{color:#596579;line-height:1.8}
.hero-features{display:flex;gap:38px;margin-top:30px}
.hf{text-align:center;color:#253550}.hf-icon{width:42px;height:42px;margin:0 auto 8px;border-radius:50%;border:1.5px solid #6ea2ff;color:var(--primary);display:grid;place-items:center;font-size:20px;background:#fff9}.hf small{display:block;color:#8a95a6;margin-top:4px}
.hero-visual{position:relative;height:230px;display:grid;place-items:center}
.platform{position:absolute;width:260px;height:78px;border-radius:30px;background:linear-gradient(#dbe9ff,#a7c9ff);bottom:24px;box-shadow:0 24px 35px rgba(50,104,190,.22)}
.platform:before{content:"";position:absolute;inset:12px 25px;border-radius:22px;background:linear-gradient(145deg,#fff,#8ebaff);border:2px solid #d8e7ff}
.shield{position:relative;width:112px;height:135px;background:linear-gradient(155deg,#4f9cff,#1468ff);clip-path:polygon(50% 0,92% 18%,88% 70%,50% 100%,12% 70%,8% 18%);z-index:3;filter:drop-shadow(0 15px 16px rgba(30,92,190,.28))}
.shield:before{content:"✓";position:absolute;inset:16px;background:#dfeeff;color:#1970ff;clip-path:inherit;display:grid;place-items:center;font-size:48px;font-weight:900}
.float-card{position:absolute;padding:12px 17px;border-radius:8px;color:#fff;font-weight:700;z-index:4;box-shadow:0 10px 20px rgba(0,0,0,.13);transform:rotate(-7deg)}
.fc1{background:#247ce8;left:26px;top:28px}.fc2{background:#ff6659;left:5px;top:95px;transform:rotate(-9deg)}.fc3{background:#1d9bf0;right:5px;top:77px;transform:rotate(8deg)}
.section-card{background:#fff;border:1px solid var(--border);border-radius:13px;box-shadow:var(--shadow);padding:18px;margin-top:14px}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}
.section-head h2{font-size:20px;margin:0}.section-head a{color:var(--primary)}
.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}
.category{position:relative;min-height:126px;border-radius:11px;padding:18px;overflow:hidden;border:1px solid transparent}
.category h3{margin:0 0 8px;font-size:17px}.category p{color:#6f7b8e;line-height:1.7;font-size:12px;max-width:75%;margin:0 0 13px}.category .mini{display:inline-block;padding:4px 10px;border-radius:16px;background:#fff;border:1px solid currentColor;font-size:11px}
.category .cat-icon{position:absolute;right:15px;top:36px;font-size:40px}
.c-red{background:linear-gradient(135deg,#fff3f1,#fff8f7);color:#f04e45}.c-orange{background:linear-gradient(135deg,#fff7ed,#fffaf5);color:#f19529}.c-blue{background:linear-gradient(135deg,#edf5ff,#f7fbff);color:#2d77ee}.c-green{background:linear-gradient(135deg,#edfcf6,#f7fffb);color:#18ad79}.c-purple{background:linear-gradient(135deg,#f5f1ff,#fbf9ff);color:#7255e9}
.process{display:grid;grid-template-columns:repeat(4,1fr);align-items:center;gap:20px;padding:8px 10px}.process-item{position:relative;display:flex;gap:12px;align-items:center}.process-item:not(:last-child):after{content:"→";position:absolute;right:-15px;color:#91b8ff;font-size:20px}.num{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--primary);color:#fff;font-weight:800}.process b{color:var(--primary)}.process small{display:block;color:#8b96a7;margin-top:3px}
.form-shell{max-width:760px;margin:0 auto}.breadcrumb{color:#8a95a4;margin:4px 0 14px}.form-card{background:#fff;border:1px solid var(--border);border-radius:10px;overflow:hidden;box-shadow:var(--shadow)}.form-title{padding:18px 20px;border-bottom:1px solid var(--border);font-size:20px;font-weight:800}.form-body{padding:18px 20px}
.field{margin-bottom:16px}.field label{display:block;margin-bottom:7px;font-weight:600}.input,.field input,.field select,.field textarea{width:100%;border:1px solid #dce3ed;border-radius:6px;padding:11px 12px;background:#fff;outline:none}.field input:focus,.field select:focus,.field textarea:focus{border-color:#7ba7ff;box-shadow:0 0 0 3px #1468ff12}
.face-row{display:flex;gap:10px;flex-wrap:wrap}.face-chip{min-width:76px;padding:8px 14px;border:1px solid #dce3ed;border-radius:6px;background:#fff;cursor:pointer}.face-chip.active{color:var(--primary);border-color:var(--primary);background:#f5f9ff}
.price-block{display:flex;justify-content:space-between;align-items:end;margin:18px 0}.price{font-size:29px;color:#ff3e33;font-weight:800}.rate{color:#8c97a8}.upload-box{width:145px;height:90px;border:1px dashed #b9c5d5;border-radius:7px;display:grid;place-items:center;color:#7e8999;text-align:center}.submit-wide{width:100%;padding:12px}
.user-layout{display:grid;grid-template-columns:220px 1fr;min-height:calc(100vh - 64px);background:#f5f7fb}.user-sidebar{background:#fff;border-right:1px solid var(--border);padding:17px 12px}.user-sidebar h3{font-size:13px;color:#9aa5b4;padding:0 12px}.side-link{display:flex;align-items:center;gap:10px;padding:11px 13px;border-radius:7px;margin-bottom:4px;color:#5b687a}.side-link.active,.side-link:hover{background:#ecf3ff;color:var(--primary);font-weight:600}.side-icon{width:20px;text-align:center}
.user-main{padding:20px}.blue-head{height:56px;background:linear-gradient(90deg,#1162f4,#2678ff);color:#fff;margin:-20px -20px 20px;padding:0 20px;display:flex;align-items:center;justify-content:space-between;font-weight:800;font-size:18px}.panel{background:#fff;border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);padding:17px}.profile-row{display:grid;grid-template-columns:1fr 210px;gap:15px}.profile-card{display:flex;align-items:center;gap:18px}.avatar{width:68px;height:68px;border-radius:50%;background:linear-gradient(145deg,#e8edf4,#b8c4d3);display:grid;place-items:center;font-size:35px;color:#fff}.balance-card{border-left:1px solid var(--border);padding-left:25px}.balance-card strong{font-size:24px}.order-tabs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin:14px 0}.ot{text-align:center;padding:11px 4px;border-radius:8px;background:#f8faff}.ot-icon{font-size:24px;color:var(--primary)}.ot small{display:block;margin-top:5px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:720px}th,td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--border);font-size:12px;white-space:nowrap}th{color:#697589;background:#fafbfd;font-weight:600}.status{padding:4px 8px;border-radius:13px;font-size:11px;background:#eef3ff;color:#3374da}.status.ok{background:#e9faf3;color:#16a36d}.status.bad{background:#fff0ef;color:#e9504b}.status.wait{background:#edf5ff;color:#3478e9}
.account-item{display:flex;align-items:center;gap:10px;padding:13px;border:1px solid var(--border);border-radius:8px;margin-top:10px}.account-item .grow{flex:1}
.admin-shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}.admin-sidebar{background:linear-gradient(180deg,#0c3158,#0b2949);color:#d9e8f8;padding:0 10px 18px;position:sticky;top:0;height:100vh}.admin-brand{height:58px;display:flex;align-items:center;padding:0 8px;font-weight:800;color:#fff}.admin-menu a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:5px;margin:3px 0}.admin-menu a:hover,.admin-menu a.active{background:#1468ff;color:#fff}.admin-top{height:58px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 18px;position:sticky;top:0;z-index:20}.admin-content{padding:16px}.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.kpi{background:#fff;border:1px solid var(--border);border-radius:8px;padding:17px;box-shadow:var(--shadow)}.kpi .label{color:#748194}.kpi .value{font-size:25px;font-weight:800;margin:7px 0}.up{color:var(--green);font-size:11px}.down{color:var(--red);font-size:11px}
.admin-grid{display:grid;grid-template-columns:1.5fr .8fr;gap:12px;margin-top:12px}.chart-card{height:310px}.chart-wrap{height:245px;margin-top:12px}.bottom-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:12px;margin-top:12px}.notice-list{list-style:none;margin:0;padding:0}.notice-list li{padding:11px 0;border-bottom:1px solid var(--border);display:flex;gap:8px}.dot{color:#ffad32}
.filter-bar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:12px 0 4px}.filter-bar input,.filter-bar select{padding:9px 10px;border:1px solid #dce3ed;border-radius:6px;background:#fff}.tab-row{display:flex;gap:25px;border-bottom:1px solid var(--border);margin-top:8px}.tab-row a{padding:11px 0;border-bottom:2px solid transparent}.tab-row a.active{color:var(--primary);border-bottom-color:var(--primary)}
.pagination{display:flex;align-items:center;justify-content:flex-end;gap:7px;margin-top:16px}.pagebtn{width:30px;height:30px;border:1px solid #dce3ed;border-radius:5px;display:grid;place-items:center;background:#fff}.pagebtn.active{border-color:var(--primary);color:var(--primary)}
.notice{padding:12px 14px;background:#eff6ff;border-radius:7px;color:#2b5ca8;margin-bottom:13px}.flash{padding:11px 14px;border-radius:7px;margin-bottom:12px}.flash.success{background:#eaf9f2;color:#08784f}.flash.error{background:#fff0f0;color:#b42318}
.site-footer{margin-top:30px;background:#fff;border-top:1px solid var(--border);padding:24px 18px 30px;color:#8792a3;text-align:center}.footer-brand{font-weight:700;color:#566175;margin-bottom:7px}.footer-links{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;font-size:12px}.footer-tip{font-size:11px;margin-top:7px}
.mobile-nav{display:none}
@media(max-width:1050px){.category-grid{grid-template-columns:repeat(2,1fr)}.kpi-grid{grid-template-columns:repeat(2,1fr)}.admin-grid,.bottom-grid{grid-template-columns:1fr}.user-layout{grid-template-columns:185px 1fr}}
@media(max-width:780px){
 body{padding-bottom:64px}.topbar{height:58px;padding:0 12px}.topnav{display:none}.top-actions .btn{padding:7px 10px;font-size:12px}.page{padding:12px}
 .hero{grid-template-columns:1fr;padding:26px 20px;min-height:auto}.hero h1{font-size:29px}.hero .sub{font-size:16px}.hero-visual{display:none}.hero-features{gap:14px;justify-content:space-between}.hf{font-size:12px}.hf small{font-size:10px}
 .category-grid{grid-template-columns:1fr 1fr;gap:9px}.category{min-height:115px;padding:14px}.category p{max-width:72%}
 .process{grid-template-columns:1fr 1fr}.process-item:after{display:none}
 .user-layout{display:block}.user-sidebar{display:none}.user-main{padding:12px}.blue-head{margin:-12px -12px 12px}.profile-row{grid-template-columns:1fr}.balance-card{border-left:0;border-top:1px solid var(--border);padding:14px 0 0}.order-tabs{grid-template-columns:repeat(5,1fr);gap:4px}.ot{padding:8px 2px;font-size:10px}
 .admin-shell{display:block}.admin-sidebar{display:none}.admin-content{padding:10px}.kpi-grid{grid-template-columns:1fr 1fr;gap:8px}.admin-top{height:54px}.chart-card{height:290px}
 .form-shell{max-width:100%}.form-card{border-radius:8px}.site-footer{padding-bottom:76px}
 .mobile-nav{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;left:0;right:0;bottom:0;height:62px;background:#fff;border-top:1px solid var(--border);z-index:50}.mobile-nav a{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:3px;color:#6f7b8d;font-size:10px}.mobile-nav a span{font-size:20px}.mobile-nav a.active{color:var(--primary)}
}
@media(max-width:430px){.category-grid{grid-template-columns:1fr}.hero-features{display:grid;grid-template-columns:repeat(3,1fr)}.process{grid-template-columns:1fr}.kpi-grid{grid-template-columns:1fr 1fr}.category p{max-width:80%}}

.agreement-check{display:flex;align-items:flex-start;gap:8px;line-height:1.6;margin:10px 0;color:#6f7c90;font-size:13px}
.agreement-check input{width:16px;height:16px;margin-top:2px;accent-color:var(--primary)}
.agreement-check a{color:var(--primary)}
.article-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.article-tabs a{padding:7px 14px;border-radius:18px;background:#f3f6fb;color:#627086}
.article-tabs a.active,.article-tabs a:hover{background:#e9f1ff;color:var(--primary)}
.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.article-card{display:grid;grid-template-columns:120px 1fr;gap:16px;border:1px solid var(--border);border-radius:10px;padding:15px;background:#fff;transition:.18s}
.article-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.article-cover{height:92px;border-radius:8px;background:linear-gradient(135deg,#e9f2ff,#bdd6ff);display:grid;place-items:center;color:#1468ff;font-weight:800}
.article-card h3{margin:7px 0;font-size:17px}.article-card p{margin:0 0 9px;color:#7b8798;line-height:1.7}.article-card span{color:var(--primary)}
.article-meta{font-size:12px;color:#9aa5b4}
.article-detail{max-width:900px;margin:20px auto;background:#fff;border:1px solid var(--border);border-radius:12px;padding:34px 42px;box-shadow:var(--shadow)}
.article-detail h1{font-size:30px;margin:10px 0 16px}.article-summary{background:#f7f9fc;border-left:3px solid var(--primary);padding:13px 15px;color:#667386;line-height:1.8;margin-bottom:22px}.article-content{font-size:15px;line-height:2;color:#3d495d;white-space:normal}
@media(max-width:780px){.article-grid{grid-template-columns:1fr}.article-card{grid-template-columns:90px 1fr}.article-cover{height:78px}.article-detail{margin:8px 0;padding:22px 18px}.article-detail h1{font-size:24px}}

/* V5 floating actions */
.float-actions{position:fixed;right:22px;bottom:110px;z-index:70;display:flex;flex-direction:column;gap:10px}
.float-action{width:58px;height:58px;border-radius:16px;border:1px solid #dfe7f2;background:#fff;box-shadow:0 10px 28px rgba(20,45,90,.14);display:flex;flex-direction:column;align-items:center;justify-content:center;color:#5f6d81;cursor:pointer;transition:.2s}
.float-action:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(20,45,90,.18)}
.float-action.qq{background:linear-gradient(145deg,#ffffff,#edf5ff);color:#1677ff}
.float-action.top{color:#4f6075}
.fa-icon{font-size:20px;font-weight:900;line-height:1}.fa-text{font-size:10px;margin-top:4px}
.upload-real{display:none}
.upload-box{cursor:pointer;transition:.18s;position:relative}
.upload-box:hover{border-color:var(--primary);background:#f6f9ff;color:var(--primary)}
.upload-preview{margin-top:10px;display:none;max-width:180px;border:1px solid var(--border);border-radius:8px;padding:6px;background:#fff}
.upload-preview img{width:100%;height:auto;border-radius:6px}
.face-chip{transition:.18s}
.face-chip:hover{border-color:#8db1ff;color:var(--primary)}
.product-help{font-size:12px;color:#8c98aa;margin-top:6px}
@media(max-width:780px){.float-actions{right:12px;bottom:78px}.float-action{width:50px;height:50px;border-radius:14px}.fa-icon{font-size:18px}}


/* V6 用户中心统一框架 */
.user-center-body{min-height:100vh;background:#f5f7fb}
.user-global-top{height:64px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 22px;gap:32px;position:sticky;top:0;z-index:45;box-shadow:0 3px 14px rgba(20,45,90,.035)}
.user-global-nav{display:flex;align-items:center;gap:28px;flex:1;height:100%}
.user-global-nav a{height:100%;display:flex;align-items:center;color:#4c596d;border-bottom:2px solid transparent}
.user-global-nav a:hover{color:var(--primary);border-bottom-color:var(--primary)}
.user-global-actions{display:flex;align-items:center;gap:12px}.user-welcome{color:#667386;font-size:13px}
.user-layout-with-top{min-height:calc(100vh - 64px)}
.user-layout-with-top .user-sidebar{position:sticky;top:64px;height:calc(100vh - 64px);overflow:auto}
.user-side-title{padding:4px 13px 15px;color:#22314a;font-size:16px;font-weight:800}
.user-side-sep{height:1px;background:var(--border);margin:12px 10px}
.user-head-meta{display:flex;align-items:center;gap:20px;font-size:12px;font-weight:400}
.user-head-meta a{color:#fff;background:rgba(255,255,255,.14);padding:6px 10px;border-radius:6px}
.user-center-content{max-width:1180px}
.user-center-footer{margin-top:0}
.user-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.user-stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:12px}
.user-stat-card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px;box-shadow:var(--shadow)}
.user-stat-card small{color:#8b96a8}.user-stat-card strong{display:block;font-size:22px;margin-top:7px}
.empty-state{padding:36px;text-align:center;color:#8b96a8}
@media(max-width:900px){
 .user-global-top{padding:0 12px;height:58px}.user-global-nav{display:none}.user-welcome{display:none}
 .user-layout-with-top{min-height:auto}.user-layout-with-top .user-sidebar{display:none}
 .user-head-meta span{display:none}.user-main{padding:12px}
 .user-stat-grid{grid-template-columns:1fr 1fr}.user-form-grid{grid-template-columns:1fr}
}