/* ===== 智汇 ZHIHUI · 重制设计系统 v2 ===== */
:root{
  --brand:#2a5bff;
  --brand-600:#1f49e0;
  --brand-700:#1736b8;
  --accent:#15c6f0;
  --gold:#f5a623;
  --bg:#f4f6fb;
  --bg-2:#eef2fb;
  --surface:#ffffff;
  --ink:#0f1726;
  --ink-2:#475569;
  --ink-3:#94a3b8;
  --line:#e7ecf5;
  --green:#15a35a;
  --orange:#f59e0b;
  --red:#e23b3b;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(20,33,61,.08);
  --shadow-lg:0 24px 60px rgba(28,58,140,.16);
  --shadow-sm:0 2px 10px rgba(20,33,61,.05);
  --maxw:1180px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:78px 0}
.section-sm{padding:48px 0}
h1,h2,h3,h4{line-height:1.25;color:var(--ink);letter-spacing:-.3px}
.muted{color:var(--ink-2)}
.center{text-align:center}
.gradient-text{background:linear-gradient(110deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===== 顶部导航（玻璃 + 下拉） ===== */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:21px}
.brand .logo{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--brand),var(--accent));display:grid;place-items:center;color:#fff;font-weight:900;font-size:19px;box-shadow:0 6px 16px rgba(42,91,255,.4)}
.brand .en{font-size:11px;color:var(--ink-3);font-weight:600;letter-spacing:1.5px}
.nav-links{display:flex;gap:4px;list-style:none;align-items:center}
.nav-links a{padding:9px 14px;border-radius:10px;font-size:14.5px;color:var(--ink-2);font-weight:500;transition:.2s}
.nav-links a:hover{background:var(--bg-2);color:var(--brand)}
.nav-links a.active{color:var(--brand);background:#eaf0ff;font-weight:600}
.nav-cta{display:flex;gap:10px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:7px;padding:10px 18px;border-radius:11px;font-weight:600;font-size:14.5px;cursor:pointer;border:1px solid transparent;transition:.22s;white-space:nowrap}
.btn-primary{background:linear-gradient(120deg,var(--brand),var(--brand-600));color:#fff;box-shadow:0 8px 20px rgba(42,91,255,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(42,91,255,.42)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{background:#eaf0ff;border-color:#c7d6ff}
.btn-lg{padding:14px 30px;font-size:16px;border-radius:13px}
.menu-toggle{display:none;border:none;background:none;font-size:24px;color:var(--ink);cursor:pointer}

/* 导航下拉 */
.nav-more{position:relative}
.nav-more > a{cursor:pointer}
.dropdown{position:absolute;top:calc(100% + 10px);right:0;min-width:190px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);padding:8px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:.2s;z-index:60}
.nav-more:hover .dropdown,.nav-more.open .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:9px;font-size:14px;color:var(--ink-2)}
.dropdown a:hover{background:var(--bg-2);color:var(--brand)}
.dropdown a .di{width:7px;height:7px;border-radius:50%;background:var(--brand)}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:radial-gradient(900px 480px at 78% -8%,#dbe6ff 0,transparent 55%),linear-gradient(180deg,#fff,var(--bg))}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;z-index:0}
.hero::before{width:420px;height:420px;background:radial-gradient(circle,#a9c5ff,transparent 70%);top:-120px;right:-60px}
.hero::after{width:360px;height:360px;background:radial-gradient(circle,#9fe9ff,transparent 70%);bottom:-160px;left:-80px}
.hero-inner{position:relative;z-index:1;padding:92px 0 80px;display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.hero h1{font-size:50px;font-weight:880;letter-spacing:-1.2px;margin-bottom:20px;line-height:1.12}
.hero p.lead{font-size:18.5px;color:var(--ink-2);margin-bottom:30px;max-width:540px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:34px;margin-top:44px;padding-top:30px;border-top:1px solid var(--line)}
.hero-stats .num{font-size:32px;font-weight:880;color:var(--brand);letter-spacing:-.5px}
.hero-stats .lbl{font-size:13.5px;color:var(--ink-3)}
.hero-card{background:rgba(255,255,255,.86);backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow-lg)}
.search-box{display:flex;gap:10px;margin-bottom:18px}
.search-box input{flex:1;border:1px solid var(--line);border-radius:12px;padding:14px 16px;font-size:15px;outline:none;transition:.2s;background:#fbfcff}
.search-box input:focus{border-color:var(--brand);box-shadow:0 0 0 4px #dde7ff}
.quick-tags{display:flex;flex-wrap:wrap;gap:8px}
.quick-tags span{font-size:13px;color:var(--ink-2);background:var(--bg-2);border:1px solid var(--line);padding:7px 13px;border-radius:999px;cursor:pointer;transition:.2s}
.quick-tags span:hover{color:var(--brand);border-color:var(--brand);background:#eaf0ff}
.hero-note{margin-top:18px;font-size:12.5px;color:var(--ink-3);display:flex;gap:8px;align-items:flex-start}
.hero-note svg{flex-shrink:0;margin-top:2px}

/* ===== 区块标题 ===== */
.sec-head{margin-bottom:40px;max-width:700px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head .eyebrow{display:inline-block;font-size:13px;font-weight:700;color:var(--brand);letter-spacing:1.5px;background:#eaf0ff;padding:6px 13px;border-radius:999px;margin-bottom:16px}
.sec-head h2{font-size:34px;font-weight:820;letter-spacing:-.6px}
.sec-head p{margin-top:14px;color:var(--ink-2);font-size:16.5px}

/* ===== 功能卡片 ===== */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.28s;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.feat::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(42,91,255,.06),transparent);opacity:0;transition:.28s}
.feat:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#cdddff}
.feat:hover::after{opacity:1}
.feat .ico{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,#eaf0ff,#e0f6ff);display:grid;place-items:center;margin-bottom:18px;color:var(--brand);font-size:24px}
.feat h3{font-size:17.5px;margin-bottom:8px}
.feat p{font-size:14px;color:var(--ink-2)}

/* ===== 网格 ===== */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* broker card */
.broker{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:.28s;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:14px;position:relative;overflow:hidden}
.broker::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--accent));opacity:0;transition:.28s}
.broker:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#cdddff}
.broker:hover::before{opacity:1}
.broker-top{display:flex;align-items:center;gap:13px}
.avatar{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;font-weight:800;font-size:17px;color:#fff;background:linear-gradient(135deg,var(--brand),var(--accent));box-shadow:0 6px 14px rgba(42,91,255,.3)}
.broker-name{font-weight:700;font-size:16.5px}
.broker-sub{font-size:12.5px;color:var(--ink-3)}
.score-badge{margin-left:auto;text-align:center;background:linear-gradient(135deg,#e9f9f0,#dff3ff);color:var(--green);border-radius:13px;padding:7px 13px;font-weight:800;font-size:19px;line-height:1}
.score-badge small{display:block;font-size:10px;font-weight:600;color:#5a8a6a;margin-top:1px}
.badge{font-size:11.5px;font-weight:700;padding:3px 10px;border-radius:999px}
.badge.green{background:#e6f7ee;color:var(--green)}
.badge.orange{background:#fff4dd;color:#c2770a}
.badge.red{background:#fdeaea;color:var(--red)}
.tag-reg{display:inline-block;font-size:12px;font-weight:600;padding:3px 11px;border-radius:9px;background:var(--bg-2);border:1px solid var(--line);color:var(--ink-2)}
.tag-reg.r-strong{background:#e6f7ee;color:var(--green);border-color:#bfe6cb}
.tag-reg.r-mid{background:#eef2ff;color:#3b5bdb;border-color:#cdd6ff}
.tag-reg.r-off{background:#fff4dd;color:#c2770a;border-color:#ffe2a8}
.tag-reg.r-none{background:#fdeaea;color:var(--red);border-color:#f6c9c9}
.broker-meta{display:grid;grid-template-columns:1fr 1fr;gap:10px 14px;font-size:13px;color:var(--ink-2)}
.broker-meta b{color:var(--ink);font-weight:600}
.broker-pros{font-size:12.5px;color:var(--ink-2);display:flex;flex-direction:column;gap:4px}
.broker-pros span::before{content:"✓";color:var(--green);font-weight:800;margin-right:6px}
.broker-actions{display:flex;gap:10px;margin-top:auto}
.broker-actions .btn{flex:1;justify-content:center;padding:10px;font-size:13.5px}

/* regulator strip */
.reg-strip{display:flex;flex-wrap:wrap;gap:12px}
.reg-pill{display:flex;align-items:center;gap:11px;background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:13px 17px;box-shadow:var(--shadow-sm);transition:.22s}
.reg-pill:hover{transform:translateY(-2px);border-color:#cdddff}
.reg-pill .dot{width:11px;height:11px;border-radius:50%}
.reg-pill .dot.r-strong{background:var(--green)}
.reg-pill .dot.r-mid{background:#3b5bdb}
.reg-pill .dot.r-off{background:var(--orange)}
.reg-pill .dot.r-none{background:var(--red)}
.reg-pill b{font-size:14px}
.reg-pill span{font-size:12px;color:var(--ink-3)}

/* quotes */
.quotes{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
.quotes-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line)}
.quotes-head h3{font-size:16.5px}
.live-dot{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--green);font-weight:600}
.live-dot::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(21,163,90,.5);animation:pulse 1.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(21,163,90,.5)}70%{box-shadow:0 0 0 8px rgba(21,163,90,0)}100%{box-shadow:0 0 0 0 rgba(21,163,90,0)}}
.quotes-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.q-item{padding:17px 22px;border-right:1px solid var(--line)}
.q-item:last-child{border-right:none}
.q-pair{font-size:13px;color:var(--ink-3);font-weight:600}
.q-price{font-size:21px;font-weight:800;margin:5px 0 3px}
.q-chg{font-size:12.5px;font-weight:700}
.q-chg.up{color:var(--green)}
.q-chg.down{color:var(--red)}

/* card */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.28s;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cdddff}
.cat-tag{display:inline-block;font-size:11.5px;font-weight:700;color:var(--brand);background:#eaf0ff;padding:4px 11px;border-radius:999px;margin-bottom:13px}
.card h3{font-size:16.5px;margin-bottom:10px;line-height:1.45}
.card p{font-size:13.5px;color:var(--ink-2)}
.card .date{font-size:12px;color:var(--ink-3);margin-top:13px}

/* exposure / reviews */
.exp-item,.rev-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:.22s}
.exp-item:hover,.rev-item:hover{border-color:#cdddff;box-shadow:var(--shadow)}
.exp-item{display:flex;gap:16px;align-items:flex-start}
.exp-level{font-size:12px;font-weight:800;padding:6px 13px;border-radius:999px;white-space:nowrap}
.exp-level.高危{background:#fdeaea;color:var(--red)}
.exp-level.中危{background:#fff4dd;color:#c2770a}
.exp-body h3{font-size:16px;margin-bottom:6px}
.exp-body p{font-size:13.5px;color:var(--ink-2)}
.exp-meta{font-size:12px;color:var(--ink-3);margin-top:9px;display:flex;gap:16px}
.stars{color:var(--gold);letter-spacing:2px}
.rev-item p{font-size:14px;color:var(--ink-2);margin:11px 0}
.rev-meta{display:flex;justify-content:space-between;font-size:12.5px;color:var(--ink-3)}

/* FAQ / academy */
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow-sm);transition:.22s}
.faq-item:hover{border-color:#cdddff}
.faq-item .q{font-weight:700;font-size:15.5px;display:flex;gap:10px;align-items:center}
.faq-item .q::before{content:"Q";color:#fff;background:linear-gradient(135deg,var(--brand),var(--accent));width:25px;height:25px;border-radius:8px;display:grid;place-items:center;font-size:13px;flex-shrink:0}
.faq-item .a{font-size:14px;color:var(--ink-2);margin-top:13px;padding-left:35px}
.academy-item{display:flex;align-items:center;gap:15px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:17px 21px;transition:.22s;box-shadow:var(--shadow-sm)}
.academy-item:hover{border-color:#cdddff;transform:translateX(4px);box-shadow:var(--shadow)}
.academy-item .ac-ico{width:44px;height:44px;border-radius:12px;background:#eef2ff;color:#3b5bdb;display:grid;place-items:center;font-weight:800;flex-shrink:0;font-size:18px}
.academy-item b{font-size:15px}
.academy-item span{font-size:12.5px;color:var(--ink-3)}

/* CTA */
.cta-band{background:linear-gradient(120deg,var(--brand-700),var(--brand) 60%,var(--accent));color:#fff;border-radius:24px;padding:52px;text-align:center;position:relative;overflow:hidden;box-shadow:var(--shadow-lg)}
.cta-band::before{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:rgba(255,255,255,.12);top:-120px;right:-60px}
.cta-band::after{content:"";position:absolute;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.08);bottom:-90px;left:-40px}
.cta-band h2{color:#fff;font-size:31px;margin-bottom:13px;position:relative}
.cta-band p{color:rgba(255,255,255,.88);margin-bottom:28px;font-size:16px;position:relative}

/* footer */
.footer{background:#0c1424;color:#c7d2e0;padding:60px 0 28px;margin-top:30px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px}
.footer h4{color:#fff;font-size:14px;margin-bottom:17px}
.footer a,.footer li{color:#9fb0c3;font-size:13.5px;line-height:2.1}
.footer a:hover{color:#fff}
.footer .brand{color:#fff;margin-bottom:15px;display:flex;align-items:center;gap:11px;font-weight:800;font-size:20px}
.footer .brand .logo{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--accent));display:grid;place-items:center;color:#fff;font-weight:900}
.footer-about{font-size:13.5px;color:#93a3b8;max-width:320px;line-height:1.8}
.footer-bottom{border-top:1px solid #1c283e;margin-top:42px;padding-top:22px;font-size:12.5px;color:#74859c;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.disclaimer{background:#101c30;border:1px solid #1c283e;border-radius:13px;padding:15px 19px;font-size:12px;color:#8595ab;margin-top:24px;line-height:1.8}

/* ===== AI 浮动助手 ===== */
.ai-fab{position:fixed;right:26px;bottom:26px;z-index:60;width:62px;height:62px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--accent));display:grid;place-items:center;color:#fff;cursor:pointer;box-shadow:0 12px 32px rgba(42,91,255,.5);transition:.25s;font-size:26px}
.ai-fab:hover{transform:scale(1.09)}
.ai-panel{position:fixed;right:26px;bottom:102px;z-index:60;width:344px;max-width:calc(100vw - 40px);background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:0 24px 60px rgba(20,33,61,.28);display:none;flex-direction:column;overflow:hidden}
.ai-panel.open{display:flex}
.ai-head{background:linear-gradient(120deg,var(--brand-700),var(--brand));color:#fff;padding:17px 19px;display:flex;justify-content:space-between;align-items:center}
.ai-head b{font-size:15px}
.ai-head .close{cursor:pointer;font-size:21px;opacity:.85}
.ai-body{padding:16px;height:300px;overflow-y:auto;display:flex;flex-direction:column;gap:12px;background:var(--bg)}
.ai-msg{font-size:13.5px;padding:11px 14px;border-radius:14px;max-width:85%;line-height:1.55}
.ai-msg.bot{background:#eaf0ff;color:var(--ink);align-self:flex-start;border-bottom-left-radius:5px}
.ai-msg.me{background:linear-gradient(120deg,var(--brand),var(--brand-600));color:#fff;align-self:flex-end;border-bottom-right-radius:5px}
.ai-quick{display:flex;flex-wrap:wrap;gap:7px;padding:11px 14px;border-top:1px solid var(--line)}
.ai-quick button{font-size:12px;border:1px solid var(--line);background:#fff;color:var(--brand);border-radius:999px;padding:6px 12px;cursor:pointer;transition:.2s}
.ai-quick button:hover{background:#eaf0ff}
.ai-input{display:flex;border-top:1px solid var(--line);padding:12px}
.ai-input input{flex:1;border:1px solid var(--line);border-radius:11px;padding:11px 13px;outline:none;font-size:14px}
.ai-input input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #dde7ff}
.ai-input button{margin-left:8px;background:linear-gradient(120deg,var(--brand),var(--brand-600));color:#fff;border:none;border-radius:11px;padding:0 17px;cursor:pointer;font-weight:600}

/* ===== 详情弹窗 ===== */
.modal-mask{position:fixed;inset:0;background:rgba(12,20,36,.55);z-index:80;display:none;align-items:flex-start;justify-content:center;padding:42px 16px;overflow-y:auto}
.modal-mask.open{display:flex}
.modal{background:var(--surface);border-radius:20px;max-width:700px;width:100%;padding:32px;box-shadow:0 36px 80px rgba(0,0,0,.34)}
.modal h2{font-size:25px;margin-bottom:6px}
.modal .close{float:right;cursor:pointer;font-size:25px;color:var(--ink-3);line-height:1}
.modal-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px 26px;margin:22px 0;font-size:14px}
.modal-grid .k{color:var(--ink-3)}
.modal-grid .v{font-weight:600}
.modal h4{margin:19px 0 9px;font-size:15px}
.modal ul{margin-left:18px;font-size:14px;color:var(--ink-2)}
.modal .cons li{color:var(--red)}

/* page hero */
.page-hero{position:relative;overflow:hidden;background:linear-gradient(125deg,#0c1424,#15244a 55%,#1d3a6e);color:#fff;padding:58px 0 66px}
.page-hero::before{content:"";position:absolute;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle,rgba(42,91,255,.35),transparent 70%);top:-200px;right:-100px}
.page-hero::after{content:"";position:absolute;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(21,198,240,.22),transparent 70%);bottom:-180px;left:-120px}
.page-hero .wrap{position:relative;z-index:1}
.page-hero h1{font-size:38px;font-weight:850;margin-bottom:13px;letter-spacing:-.8px}
.page-hero p{color:#b9c6da;font-size:16.5px;max-width:640px;line-height:1.7}

/* filters */
.filters{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:28px}
.filters .f-label{font-size:13px;color:var(--ink-3);font-weight:600}
.chip{font-size:13.5px;padding:9px 17px;border-radius:999px;border:1px solid var(--line);background:#fff;cursor:pointer;transition:.2s;color:var(--ink-2);font-weight:500}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.active{background:linear-gradient(120deg,var(--brand),var(--brand-600));color:#fff;border-color:transparent;box-shadow:0 6px 16px rgba(42,91,255,.3)}
.search-inline{flex:1;min-width:200px;display:flex;gap:8px}
.search-inline input{flex:1;border:1px solid var(--line);border-radius:11px;padding:11px 15px;font-size:14px;outline:none;background:#fbfcff}
.search-inline input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #dde7ff}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;position:relative;box-shadow:var(--shadow-sm);transition:.22s}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step .n{position:absolute;top:-15px;left:24px;width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;display:grid;place-items:center;font-weight:800;font-size:14px;box-shadow:0 6px 14px rgba(42,91,255,.35)}
.step h3{font-size:16px;margin:9px 0 9px}
.step p{font-size:13.5px;color:var(--ink-2)}

/* 站点导航页 */
.nav-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.nav-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.26s;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:8px}
.nav-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#cdddff}
.nav-card .ni{width:50px;height:50px;border-radius:13px;background:linear-gradient(135deg,#eaf0ff,#e0f6ff);display:grid;place-items:center;font-size:24px;margin-bottom:6px}
.nav-card h3{font-size:17px}
.nav-card p{font-size:13px;color:var(--ink-2)}
.nav-card .go{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:5px}
.nav-card:hover .go{gap:9px}

/* 404 / empty */
.empty{padding:60px;text-align:center;color:var(--ink-3)}

/* ===== 响应式 ===== */
@media(max-width:980px){
  .hero-inner{grid-template-columns:1fr;padding:60px 0 52px}
  .hero h1{font-size:40px}
  .features,.grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .nav-grid{grid-template-columns:repeat(2,1fr)}
  .quotes-row{grid-template-columns:repeat(2,1fr)}
  .q-item:nth-child(2n){border-right:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
}
@media(max-width:680px){
  .nav-links,.nav-cta .btn-ghost{display:none}
  .menu-toggle{display:block}
  .mobile-menu{display:none;flex-direction:column;padding:10px 0 16px;border-top:1px solid var(--line)}
  .mobile-menu.open{display:flex}
  .mobile-menu a{padding:11px 14px;color:var(--ink-2);font-weight:500}
  .hero h1{font-size:31px}
  .section{padding:52px 0}
  .sec-head h2{font-size:26px}
  .features,.grid-2,.grid-3,.grid-4,.quotes-row,.nav-grid{grid-template-columns:1fr}
  .q-item{border-right:none;border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:34px 22px}
  .modal-grid{grid-template-columns:1fr}
  .hero-stats{gap:20px}
  .ai-panel{right:12px;bottom:92px}
  .ai-fab{right:14px;bottom:14px}
}

/* ============================================================
   界面优化补丁
   1) SVG 图标规范化   2) 排版与垂直节奏   3) 移动端适配
   ============================================================ */

/* --- 1. SVG 图标规范化 --- */
.ico svg{display:block;flex-shrink:0}
.feat .ico svg{width:24px;height:24px}
p>svg,span>svg,li>svg,a>svg,h1>svg,h2>svg,h3>svg,h4>svg,td>svg,th>svg,strong>svg,b>svg,label>svg{
  display:inline-block;vertical-align:-.18em;margin-right:.34em
}
.stars svg,.rating svg{display:inline-block;vertical-align:-2px;margin-right:1px}
svg{max-width:100%}

/* --- 2. 排版与垂直节奏 --- */
body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
.section{padding:88px 0}
.section-sm{padding:56px 0}
.sec-head{margin-bottom:46px}
.sec-head h2{font-size:36px;line-height:1.24;letter-spacing:-.7px}
.sec-head p{margin-top:16px;line-height:1.85}
.feat{padding:30px}
.feat h3{font-size:18px;margin-bottom:10px;letter-spacing:-.2px}
.feat p{line-height:1.78}
p{line-height:1.78}
h1,h2,h3,h4{text-wrap:balance}

/* --- 3. 移动端适配（触控区域 / 溢出 / 字号） --- */
@media(max-width:680px){
  html{overflow-x:hidden}
  .wrap{padding:0 18px}
  .section{padding:56px 0}
  .section-sm{padding:40px 0}
  .sec-head{margin-bottom:32px}
  .sec-head h2{font-size:24px;line-height:1.32;letter-spacing:-.4px}
  .sec-head p{font-size:15.5px;margin-top:12px}
  .feat{padding:22px}
  .feat .ico{width:46px;height:46px;border-radius:12px;margin-bottom:14px}
  .feat .ico svg{width:22px;height:22px}
  .feat h3{font-size:17px}
  .btn,.btn-primary,.btn-ghost,.btn-sm{
    min-height:44px;display:inline-flex;align-items:center;justify-content:center
  }
  .mobile-menu a{min-height:44px;display:flex;align-items:center}
  table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;white-space:nowrap}
  .hero h1{letter-spacing:-.6px;line-height:1.22}
  .hero p.lead{font-size:16.5px}
}