*{box-sizing:border-box;margin:0;padding:0}
:root{
  --navy:#0F172A;
  --blue:#1E3A8A;
  --gold:#C9A961;
  --bg:#F8FAFC;
  --line:#E2E8F0;
  --text:#1E293B;
  --muted:#64748B;
}
body{font-family:-apple-system,"PingFang SC","Helvetica Neue",system-ui,sans-serif;
  background:var(--bg);min-height:100vh;color:var(--text);line-height:1.6}

/* ============ 导航 ============ */
.nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100}
.nav-inner{max-width:1200px;margin:0 auto;padding:16px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.nav-logo{width:38px;height:38px;background:var(--navy);color:var(--gold);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;border-radius:6px}
.nav-title{font-size:15px;font-weight:700;color:var(--navy);letter-spacing:0.5px}
.nav-menu{display:flex;gap:32px}
.nav-menu a{color:var(--text);text-decoration:none;font-size:14px;transition:.2s}
.nav-menu a:hover,.nav-menu a.active{color:var(--blue)}
.nav-action{display:flex;gap:12px;align-items:center}

/* ============ 按钮 ============ */
.btn{border:none;padding:10px 24px;border-radius:6px;font-weight:500;font-size:14px;
  cursor:pointer;transition:.2s;text-decoration:none;display:inline-flex;align-items:center;
  justify-content:center;background:#fff;border:1px solid var(--line);color:var(--text)}
.btn:hover{opacity:.9}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--navy);border-color:var(--navy);color:#fff}
.btn-primary:hover{background:var(--blue)}
.btn-success{background:#16A34A;border-color:#16A34A;color:#fff}
.btn-danger{background:#DC2626;border-color:#DC2626;color:#fff}
.btn-outline{background:transparent;border-color:var(--line);color:var(--text)}
.btn-gold{background:var(--gold);border-color:var(--gold);color:var(--navy);font-weight:600}
.btn-gold:hover{background:#B8944F}
.btn-lg{padding:14px 36px;font-size:15px}
.btn-sm{padding:6px 14px;font-size:12px;border-radius:4px}

/* ============ Hero ============ */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--blue) 100%);
  color:#fff;padding:110px 32px 130px;text-align:center;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;
  background:radial-gradient(circle at 80% 20%,rgba(201,169,97,0.08),transparent 50%);
  pointer-events:none}
.hero-inner{max-width:900px;margin:0 auto;position:relative;z-index:1}
.hero-badge{display:inline-block;padding:6px 20px;background:rgba(255,255,255,0.08);
  border:1px solid rgba(201,169,97,0.4);border-radius:40px;font-size:13px;
  letter-spacing:2px;color:var(--gold);margin-bottom:28px}
.hero-title{font-size:54px;font-weight:700;line-height:1.25;margin-bottom:24px;letter-spacing:1px}
.hero-title .gold{color:var(--gold)}
.hero-sub{font-size:17px;color:rgba(255,255,255,0.78);line-height:1.9;margin-bottom:44px}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-stats{display:flex;justify-content:center;gap:64px;margin-top:72px;
  padding-top:40px;border-top:1px solid rgba(255,255,255,0.1)}
.hero-stat{text-align:center}
.hero-stat .num{font-size:32px;font-weight:700;color:var(--gold);margin-bottom:6px}
.hero-stat .label{font-size:13px;color:rgba(255,255,255,0.6);letter-spacing:1px}

/* ============ 通用区块 ============ */
.section-block{padding:96px 32px}
.section-alt{background:#fff}
.section-inner{max-width:1200px;margin:0 auto}
.section-head{text-align:center;margin-bottom:64px}
.section-head h2{font-size:36px;font-weight:700;color:var(--navy);margin-bottom:14px;letter-spacing:2px}
.section-head p{font-size:15px;color:var(--muted)}
.section-head .gold-line{width:56px;height:3px;background:var(--gold);margin:20px auto 0}

/* ============ 特性卡片 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.feature-card{background:#fff;border:1px solid var(--line);padding:36px 32px;
  border-radius:8px;transition:.2s;position:relative}
.feature-card:hover{border-color:var(--blue);box-shadow:0 6px 24px rgba(30,58,138,0.08);transform:translateY(-2px)}
.feature-icon{font-size:13px;font-weight:700;color:var(--gold);letter-spacing:2px;margin-bottom:18px}
.feature-card h3{font-size:18px;font-weight:600;color:var(--navy);margin-bottom:12px}
.feature-card p{font-size:14px;color:var(--muted);line-height:1.9}

/* ============ 流程 ============ */
.flow-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.flow-step{background:#fff;border:1px solid var(--line);padding:36px 32px;border-radius:8px}
.flow-num{width:44px;height:44px;background:var(--navy);color:var(--gold);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  border-radius:6px;margin-bottom:20px}
.flow-step h3{font-size:17px;font-weight:600;color:var(--navy);margin-bottom:14px}
.flow-step ul{list-style:none}
.flow-step ul li{font-size:14px;color:var(--muted);padding:7px 0 7px 18px;position:relative;line-height:1.8}
.flow-step ul li::before{content:"";position:absolute;left:0;top:15px;
  width:6px;height:6px;background:var(--gold);border-radius:50%}

/* ============ 价值区 ============ */
.value-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:32px}
.value-card{background:#fff;border-left:3px solid var(--gold);padding:32px 28px;border-radius:4px;
  box-shadow:0 2px 12px rgba(15,23,42,0.04)}
.value-card h3{font-size:17px;font-weight:600;color:var(--navy);margin-bottom:12px}
.value-card p{font-size:14px;color:var(--muted);line-height:1.9}

/* ============ 资产沉淀 ============ */
.asset-block{background:linear-gradient(135deg,var(--navy) 0%,var(--blue) 100%);
  color:#fff;padding:96px 32px}
.asset-inner{max-width:1200px;margin:0 auto}
.asset-head{text-align:center;margin-bottom:64px}
.asset-head h2{font-size:36px;font-weight:700;margin-bottom:14px;letter-spacing:2px}
.asset-head p{font-size:15px;color:rgba(255,255,255,0.7)}
.asset-head .gold-line{width:56px;height:3px;background:var(--gold);margin:20px auto 0}
.asset-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.asset-card{background:rgba(255,255,255,0.06);border:1px solid rgba(201,169,97,0.25);
  padding:40px 36px;border-radius:8px}
.asset-card .label{font-size:12px;color:var(--gold);letter-spacing:2px;margin-bottom:16px}
.asset-card h3{font-size:22px;font-weight:600;margin-bottom:20px;color:#fff}
.asset-card ul{list-style:none}
.asset-card ul li{font-size:14px;color:rgba(255,255,255,0.78);padding:8px 0 8px 20px;
  position:relative;line-height:1.8}
.asset-card ul li::before{content:"";position:absolute;left:0;top:16px;
  width:6px;height:6px;background:var(--gold);border-radius:50%}

/* ============ CTA ============ */
.cta-block{background:#fff;text-align:center;padding:96px 32px}
.cta-block h2{font-size:34px;font-weight:700;margin-bottom:16px;letter-spacing:2px;color:var(--navy)}
.cta-block p{font-size:15px;color:var(--muted);margin-bottom:36px}

/* ============ 页脚 ============ */
.footer{background:var(--navy);color:rgba(255,255,255,0.6);padding:56px 32px 32px;text-align:center}
.footer-brand{font-size:16px;font-weight:700;color:#fff;letter-spacing:1px;margin-bottom:10px}
.footer-text{font-size:13px;margin-bottom:8px}
.footer-copy{font-size:12px;color:rgba(255,255,255,0.4);margin-top:24px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,0.08)}

/* ============ 介绍页 ============ */
.intro-hero{background:linear-gradient(135deg,var(--navy) 0%,var(--blue) 100%);
  color:#fff;padding:96px 32px;text-align:center}
.intro-hero h1{font-size:42px;font-weight:700;letter-spacing:3px;margin-bottom:18px}
.intro-hero p{font-size:16px;color:rgba(255,255,255,0.75)}
.intro-block{background:#fff;border:1px solid var(--line);padding:44px;border-radius:8px;
  font-size:15px;color:var(--text);line-height:2}
.howto-block{background:#fff;border:1px solid var(--line);padding:44px;border-radius:8px}
.howto-block h3{font-size:17px;font-weight:600;color:var(--navy);margin:28px 0 14px;padding-bottom:8px;
  border-bottom:2px solid var(--gold);display:inline-block}
.howto-block h3:first-child{margin-top:0}
.howto-block ol{padding-left:20px;margin-bottom:28px}
.howto-block ol li{font-size:14px;color:var(--text);line-height:2.1;padding-left:8px}

/* ============ 登录页 ============ */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px 20px}
.auth-card{width:100%;max-width:440px;background:#fff;border-radius:8px;
  box-shadow:0 8px 40px rgba(15,23,42,0.08);padding:48px 44px;border:1px solid var(--line)}
.auth-brand{text-align:center;padding-bottom:28px;border-bottom:1px solid var(--line);margin-bottom:32px}
.auth-brand h1{font-size:20px;font-weight:700;letter-spacing:2px;color:var(--navy);line-height:1.4}
.auth-brand h1 .gold{color:var(--gold)}
.auth-brand .sub{font-size:11px;color:var(--muted);letter-spacing:4px;margin-top:8px}
.auth-brand .slogan{font-size:12px;color:var(--blue);background:#F1F5F9;display:inline-block;
  padding:5px 18px;border-radius:40px;margin-top:16px;letter-spacing:1px}
.auth-title{font-size:18px;font-weight:600;color:var(--navy);margin-bottom:20px;text-align:center}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
.field input{width:100%;padding:13px 16px;border:1px solid var(--line);border-radius:6px;
  font-size:14px;outline:none;background:#fff;color:var(--text);transition:.2s;font-family:inherit}
.field input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(30,58,138,0.08)}
.auth-btn{width:100%;padding:14px;border-radius:6px;font-size:15px;font-weight:600;margin-top:8px}
.auth-switch{text-align:center;margin-top:24px;font-size:13px;color:var(--muted)}
.auth-switch a{color:var(--blue);cursor:pointer;font-weight:500;text-decoration:none}
.auth-switch a:hover{text-decoration:underline}
.error{color:#DC2626;font-size:13px;margin-top:12px;text-align:center;min-height:18px}
.hidden{display:none!important}
.auth-footer{text-align:center;margin-top:28px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12px;color:var(--muted)}
.auth-footer a{color:var(--muted);text-decoration:none}
.auth-footer a:hover{color:var(--blue)}

/* ============ Toast ============ */
.toast{position:fixed;top:24px;left:50%;transform:translateX(-50%);background:var(--navy);
  color:#fff;padding:12px 28px;border-radius:6px;font-size:14px;z-index:9999;
  opacity:0;transition:opacity .3s;pointer-events:none;max-width:90%;text-align:center;
  box-shadow:0 8px 32px rgba(0,0,0,0.2)}
.toast.show{opacity:1}
.toast.error{background:#DC2626}
.toast.success{background:#16A34A}

/* ============ 内页通用 ============ */
.page{max-width:1200px;margin:0 auto;padding:24px}
.header{display:flex;justify-content:space-between;align-items:center;
  background:#fff;padding:18px 28px;border-radius:8px;margin-bottom:20px;
  border:1px solid var(--line)}
.header h1{font-size:18px;color:var(--navy);font-weight:700;letter-spacing:1px}
.header .user{font-size:13px;color:var(--muted);display:flex;gap:12px;align-items:center}
.tabs{display:flex;gap:4px;background:#fff;padding:6px;border-radius:8px;margin-bottom:20px;
  border:1px solid var(--line);flex-wrap:wrap}
.tab{padding:10px 20px;border-radius:6px;cursor:pointer;font-size:14px;color:var(--muted);transition:.2s}
.tab:hover{background:#F1F5F9}
.tab.active{background:var(--navy);color:#fff}
.section{background:#fff;padding:28px;border-radius:8px;margin-bottom:20px;border:1px solid var(--line)}
.section h2{font-size:16px;margin-bottom:18px;color:var(--navy);font-weight:600;
  padding-bottom:12px;border-bottom:1px solid var(--line)}
.section h3{font-size:14px;color:var(--blue);margin:20px 0 10px;font-weight:600}
.input-row{display:flex;gap:10px;margin-bottom:12px;flex-wrap:wrap;align-items:center}
.input-row input,.input-row select{flex:1;min-width:140px;padding:11px 16px;border:1px solid var(--line);
  border-radius:6px;font-size:14px;outline:none;background:#fff;font-family:inherit}
.input-row input:focus,.input-row select:focus{border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(30,58,138,0.08)}
table{width:100%;border-collapse:collapse;font-size:13px;margin-top:10px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line)}
th{background:#F8FAFC;font-weight:600;color:var(--navy);font-size:12px;letter-spacing:0.5px}
tr:hover td{background:#FAFBFC}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin:14px 0}
.stat-item{background:#F8FAFC;border:1px solid var(--line);padding:18px 16px;border-radius:6px;text-align:center}
.stat-item .num{font-size:24px;font-weight:700;color:var(--navy);line-height:1.2}
.stat-item .label{font-size:12px;color:var(--muted);margin-top:6px}
.task-list{display:flex;flex-direction:column;gap:10px;margin-top:10px}
.task-item{background:#fff;border:1px solid var(--line);border-radius:6px;padding:16px 18px;
  display:flex;align-items:center;gap:14px;justify-content:space-between;transition:.2s}
.task-item:hover{border-color:var(--blue)}
.task-item.done{background:#F0FDF4;border-color:#BBF7D0;opacity:.85}
.task-item .text{flex:1;font-size:14px}
.task-item .meta{font-size:11px;color:var(--muted);margin-top:6px}
.empty{text-align:center;color:var(--muted);font-size:14px;padding:32px}

/* ============ 报告页 ============ */
.report-actions{display:flex;gap:12px;margin-bottom:24px;flex-wrap:wrap;
  padding-bottom:20px;border-bottom:1px solid var(--line)}
.report-body{background:#fff;padding:40px 48px;max-width:900px;margin:0 auto}
.report-cover{text-align:center;padding:60px 0 40px;border-bottom:2px solid var(--navy);margin-bottom:40px}
.report-brand{font-size:13px;color:var(--gold);letter-spacing:6px;margin-bottom:20px;font-weight:600}
.report-title{font-size:32px;font-weight:700;color:var(--navy);letter-spacing:2px;margin-bottom:36px}
.report-meta{text-align:left;display:inline-block;font-size:14px;color:var(--text);line-height:2.2}
.report-meta span{color:var(--muted);display:inline-block;width:100px}
.report-chapter{margin-bottom:40px}
.report-chapter h2{font-size:18px;font-weight:700;color:var(--navy);
  padding-bottom:12px;border-bottom:2px solid var(--navy);margin-bottom:20px;letter-spacing:1px}
.report-chapter h3{font-size:14px;color:var(--blue);margin:20px 0 10px;font-weight:600}
.report-table{width:100%;border-collapse:collapse;font-size:13px;margin:12px 0}
.report-table th{background:#F8FAFC;padding:10px 14px;text-align:left;font-weight:600;
  color:var(--navy);border:1px solid var(--line);font-size:12px}
.report-table td{padding:10px 14px;border:1px solid var(--line);color:var(--text)}
.report-footer{text-align:center;font-size:12px;color:var(--muted);margin-top:60px;
  padding-top:24px;border-top:1px solid var(--line)}

@media print{
  .nav,.header,.tabs,.report-actions,.footer{display:none!important}
  body{background:#fff}
  .report-body{padding:0;max-width:100%}
}