/* =========================================================
   律思汇 · 品牌站 视觉系统
   概念：柱汇弧线（立柱=法之稳健，弧线=汇之连接）
   配色：深蓝 #11243F + 金线 #C2A15B
   零外部依赖 · 响应式
   ========================================================= */
:root{
  --ink:#11243F;          /* 主深蓝 */
  --ink-2:#1E3A5F;        /* 次蓝 */
  --ink-soft:#33507a;
  --gold:#C2A15B;         /* 金线 */
  --gold-soft:#D9C28A;
  --bg:#FFFFFF;
  --bg-soft:#F6F8FB;
  --bg-deep:#0C1A2E;
  --text:#1F2733;
  --muted:#64748B;
  --line:#E4E9F0;
  --ok:#1F9D6B;
  --warn:#C8852B;
  --bad:#C2453F;
  --radius:14px;
  --maxw:1180px;
  --shadow:0 10px 30px rgba(17,36,63,.08);
  --shadow-sm:0 4px 14px rgba(17,36,63,.06);
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--text);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);line-height:1.3;font-weight:700}
.muted{color:var(--muted)}
.gold{color:var(--gold)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:19px;color:var(--ink)}
.brand .sub{font-family:var(--sans);font-size:12px;color:var(--muted);font-weight:400;letter-spacing:.5px}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{font-size:15px;color:var(--ink-2);position:relative;padding:6px 0}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink)}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--gold);border-radius:2px}
.nav-cta{display:flex;gap:10px;align-items:center}
.menu-toggle{display:none;background:none;border:0;font-size:24px;color:var(--ink);cursor:pointer}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;border:1.5px solid transparent;transition:.18s;font-family:var(--sans)}
.btn-primary{background:var(--gold);color:#22170a}
.btn-primary:hover{background:#b08e49;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:var(--ink-2)}
.btn-sm{padding:8px 16px;font-size:13.5px}

/* ---------- Hero ---------- */
.hero{position:relative;background:radial-gradient(1200px 500px at 80% -10%,rgba(194,161,91,.16),transparent 60%),linear-gradient(180deg,#0e2138,#11243F 60%,#0c1a2e);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border:1.5px solid rgba(194,161,91,.25);border-radius:50% 40% 50% 45%;transform:rotate(8deg)}
.hero-inner{position:relative;z-index:2;padding:84px 0 92px}
.hero h1{color:#fff;font-size:clamp(30px,4.6vw,46px);margin-bottom:18px}
.hero h1 .gold{color:var(--gold)}
.hero p.lead{font-size:18px;color:#cdd8e6;max-width:640px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-tags{margin-top:34px;display:flex;gap:10px;flex-wrap:wrap}
.hero-tags span{font-size:13px;color:#cdd8e6;border:1px solid rgba(255,255,255,.16);padding:6px 14px;border-radius:999px}
.hero-stats{display:flex;gap:38px;margin-top:46px;flex-wrap:wrap}
.hero-stats .n{font-family:var(--serif);font-size:30px;color:var(--gold);font-weight:700}
.hero-stats .l{font-size:13px;color:#aebccd}

/* ---------- Sections ---------- */
.section{padding:72px 0}
.section-soft{background:var(--bg-soft)}
.section-head{margin-bottom:38px;max-width:720px}
.section-head .eyebrow{color:var(--gold);font-weight:700;letter-spacing:2px;font-size:13px;text-transform:uppercase}
.section-head h2{font-size:clamp(24px,3.4vw,34px);margin:10px 0 12px}
.section-head p{color:var(--muted);font-size:16px}

/* ---------- Cards / Grid ---------- */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:.2s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:#d4deea}
.card .ico{width:46px;height:46px;border-radius:12px;background:rgba(194,161,91,.14);color:var(--gold);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px}
.card .tag{display:inline-block;font-size:12px;color:var(--ink-2);background:var(--bg-soft);border:1px solid var(--line);padding:3px 10px;border-radius:999px;margin:10px 6px 0 0}

/* ---------- Pillars strip ---------- */
.pillars{display:flex;gap:14px;flex-wrap:wrap}
.pillar{flex:1 1 160px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;text-align:center}
.pillar b{display:block;font-family:var(--serif);color:var(--ink);font-size:17px;margin-bottom:4px}
.pillar span{font-size:13px;color:var(--muted)}

/* ---------- Content hub ---------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.filter{padding:8px 16px;border:1px solid var(--line);border-radius:999px;background:#fff;cursor:pointer;font-size:14px;color:var(--ink-2)}
.filter.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.article{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.2s}
.article:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.article .thumb{height:140px;background:linear-gradient(135deg,var(--ink),var(--ink-2));position:relative;display:flex;align-items:flex-end;padding:14px}
.article .thumb .k{font-size:12px;color:#fff;background:rgba(194,161,91,.9);padding:4px 10px;border-radius:999px}
.article .body{padding:18px}
.article h3{font-size:17px;margin-bottom:8px;line-height:1.4}
.article .meta{font-size:12.5px;color:var(--muted);display:flex;gap:12px;margin-top:auto}
.article .excerpt{font-size:13.5px;color:var(--muted);margin:8px 0}

/* ---------- Tools ---------- */
.tool-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:start}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden}
.panel-head{padding:18px 22px;border-bottom:1px solid var(--line);background:var(--bg-soft)}
.panel-head h3{font-size:18px}
.panel-head p{font-size:13px;color:var(--muted)}
.panel-body{padding:22px}

/* Triage chat */
.chat{border:1px solid var(--line);border-radius:12px;background:var(--bg-soft);height:300px;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}
.msg{max-width:86%;padding:10px 14px;border-radius:14px;font-size:14.5px;line-height:1.6}
.msg.bot{background:#fff;border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.msg.user{background:var(--ink);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.msg .label{font-size:11px;opacity:.6;display:block;margin-bottom:2px}
.chat-input{display:flex;gap:10px;margin-top:14px}
.chat-input input{flex:1;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14.5px;font-family:var(--sans)}
.chat-input input:focus{outline:none;border-color:var(--gold)}
.triage-result{margin-top:16px;padding:16px;border:1px dashed var(--gold);border-radius:12px;background:rgba(194,161,91,.06)}
.triage-result h4{font-size:16px;margin-bottom:8px;color:var(--ink)}
.triage-result .badge{display:inline-block;padding:4px 12px;border-radius:999px;font-size:13px;font-weight:600;margin:0 8px 8px 0}
.badge-crit{background:rgba(194,69,63,.12);color:var(--bad)}
.badge-urg{background:rgba(200,133,43,.14);color:var(--warn)}
.badge-nor{background:rgba(31,157,107,.12);color:var(--ok)}

/* Assessment quiz */
.quiz-q{margin-bottom:22px}
.quiz-q .qt{font-weight:600;color:var(--ink);margin-bottom:10px;font-size:15px}
.quiz-q .opts{display:flex;flex-direction:column;gap:8px}
.opt{display:flex;align-items:center;gap:10px;padding:11px 14px;border:1px solid var(--line);border-radius:10px;cursor:pointer;font-size:14px;transition:.15s;background:#fff}
.opt:hover{border-color:var(--gold)}
.opt.sel{border-color:var(--gold);background:rgba(194,161,91,.08)}
.opt .dot{width:16px;height:16px;border-radius:50%;border:2px solid var(--line);flex:0 0 auto}
.opt.sel .dot{border-color:var(--gold);background:var(--gold)}
.quiz-bar{height:6px;background:var(--line);border-radius:999px;overflow:hidden;margin:8px 0 18px}
.quiz-bar i{display:block;height:100%;background:var(--gold);width:0;transition:.3s}
.report{margin-top:18px;padding:22px;border-radius:12px;background:var(--bg-soft);border:1px solid var(--line)}
.report .score{font-family:var(--serif);font-size:46px;font-weight:700;color:var(--ink)}
.report .score small{font-size:16px;color:var(--muted)}
.report ul{margin:12px 0 0 18px;color:var(--muted);font-size:14px}
.report .tier{display:inline-block;padding:5px 14px;border-radius:999px;font-weight:600;font-size:14px;margin-bottom:10px}
.report-tbl{width:100%;border-collapse:collapse;margin:14px 0;font-size:13.5px}
.report-tbl th,.report-tbl td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.report-tbl th{background:rgba(17,36,63,.05);font-weight:600;color:var(--ink)}
.report-tbl td.r-ok{color:#2e7d32;font-weight:600}
.report-tbl td.r-warn{color:#c8852b;font-weight:600}
.report-tbl td.r-bad{color:#c0392b;font-weight:600}
.report-box:empty{display:none}

/* ---------- Forms ---------- */
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14.5px;font-family:var(--sans);background:#fff}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold)}
.field textarea{resize:vertical;min-height:96px}
.form-note{font-size:12.5px;color:var(--muted);margin-top:6px}
.form-ok{margin-top:16px;padding:14px 18px;border-radius:10px;background:rgba(31,157,107,.1);color:#157a52;border:1px solid rgba(31,157,107,.3);font-size:14.5px;display:none}
.form-ok.show{display:block}

/* ---------- Lead score chip ---------- */
.lead-card{border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:12px;display:flex;justify-content:space-between;align-items:center;gap:12px;background:#fff}
.lead-card .who{font-weight:600;color:var(--ink)}
.lead-card .when{font-size:12px;color:var(--muted)}
.grade{font-weight:700;padding:4px 12px;border-radius:999px;font-size:13px}
.grade-A{background:rgba(31,157,107,.14);color:var(--ok)}
.grade-B{background:rgba(200,133,43,.14);color:var(--warn)}
.grade-C{background:rgba(100,116,139,.14);color:var(--muted)}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(120deg,var(--ink),var(--ink-2));color:#fff;border-radius:18px;padding:44px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band h3{color:#fff;font-size:24px;margin-bottom:6px}
.cta-band p{color:#cdd8e6}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-deep);color:#aebccd;padding:54px 0 28px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;margin-bottom:34px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px;font-family:var(--sans)}
.site-footer a{color:#aebccd;font-size:14px;display:block;margin-bottom:9px}
.site-footer a:hover{color:var(--gold)}
.foot-brand p{font-size:13.5px;margin-top:12px;max-width:280px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;font-size:12.5px;color:#7e8da0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.disclaimer{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:10px;padding:14px 16px;font-size:12px;color:#8ea0b6;margin-top:16px;line-height:1.6}

/* ---------- Breadcrumb / page hero ---------- */
.page-hero{background:linear-gradient(180deg,#0e2138,#11243F);color:#fff;padding:56px 0 50px}
.page-hero h1{color:#fff;font-size:clamp(26px,3.6vw,38px)}
.page-hero p{color:#cdd8e6;margin-top:10px;max-width:640px}
.crumb{font-size:13px;color:var(--gold);margin-bottom:10px}

/* ---------- Timeline / steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{border:1px solid var(--line);border-radius:12px;padding:20px;background:#fff;position:relative}
.step .num{width:34px;height:34px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:12px}
.step h4{font-size:16px;margin-bottom:6px}
.step p{font-size:13.5px;color:var(--muted)}

/* ---------- Table ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:14px;margin-top:8px}
.tbl th,.tbl td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.tbl th{background:var(--bg-soft);color:var(--ink);font-weight:600}
.tbl tr:nth-child(even){background:#fbfcfe}

.flash{box-shadow:0 0 0 3px var(--gold);border-radius:14px;transition:.3s}

/* ---------- 首页双轴联动列表 ---------- */
.home-item{display:block;padding:12px 0;border-bottom:1px solid var(--line)}
.home-item:last-child{border-bottom:0}
.home-item .k{font-size:11px;color:var(--gold);font-weight:600;letter-spacing:.5px}
.home-item .t{font-size:14.5px;color:var(--ink);font-weight:600;margin:3px 0;line-height:1.45}
.home-item .m{font-size:12px;color:var(--muted)}
.home-item:hover .t{color:var(--gold)}
.home-case{padding:13px 0;border-bottom:1px solid var(--line)}
.home-case:last-child{border-bottom:0}
.home-case .lv{font-size:11px;color:#fff;background:var(--gold);padding:2px 9px;border-radius:999px;font-weight:600}
.home-case .t{font-size:14px;color:var(--ink);font-weight:600;margin-top:5px;line-height:1.45}
.home-case:hover .t{color:var(--gold)}

/* ---------- Modal ---------- */
.modal-mask{position:fixed;inset:0;background:rgba(12,26,46,.55);display:none;align-items:center;justify-content:center;z-index:100;padding:20px}
.modal-mask.show{display:flex}
.modal{background:#fff;border-radius:16px;max-width:640px;width:100%;max-height:84vh;overflow:auto;padding:30px;position:relative;box-shadow:var(--shadow)}
.modal .close{position:absolute;right:18px;top:16px;font-size:24px;color:var(--muted);background:none;border:0;cursor:pointer;line-height:1}
.modal h3{font-size:22px;margin-bottom:10px;padding-right:30px}
.modal .meta{font-size:13px;color:var(--muted);display:flex;gap:14px;margin-bottom:14px}
.modal p.body{color:var(--ink-2);font-size:15px;line-height:1.8}
.modal .sync{margin-top:18px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}
.modal .sync b{color:var(--ink)}

/* ---------- Utilities ---------- */
.flex{display:flex}
.gap-12{gap:12px}.gap-16{gap:16px}.gap-20{gap:20px}
.wrap{flex-wrap:wrap}
.center{text-align:center}
.mt-20{margin-top:20px}.mt-30{margin-top:30px}.mt-40{margin-top:40px}
.mb-20{margin-bottom:20px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.list-check{list-style:none;margin-top:10px}
.list-check li{padding-left:26px;position:relative;margin-bottom:10px;color:var(--muted);font-size:15px}
.list-check li::before{content:"✓";position:absolute;left:0;top:0;color:var(--gold);font-weight:700}

/* ---------- Responsive ---------- */
@media(max-width:920px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .tool-wrap{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:22px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav-links{position:fixed;inset:68px 0 auto 0;background:#fff;flex-direction:column;padding:18px 22px;gap:14px;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:.25s;box-shadow:var(--shadow)}
  .nav-links.open{transform:translateY(0)}
  .menu-toggle{display:block}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .cta-band{padding:30px}
  .hero-inner{padding:60px 0 64px}
}