@charset "utf-8";
/* ==========================================================
   1234.chat  SEO 导航模板  ainav_seo
   明暗双切 + 现代卡片 + 巨型搜索
   ========================================================== */

/* ---------- 主题变量 ---------- */
:root{
    --bg:#f5f6f8;
    --bg-soft:#eceef2;
    --surface:#ffffff;
    --surface-2:#fafbfc;
    --text:#15171c;
    --text-2:#5c6371;
    --text-3:#8b93a3;
    --border:#e5e8ee;
    --border-2:#d8dce5;
    --brand:#4f46e5;
    --brand-2:#7c3aed;
    --brand-soft:rgba(79,70,229,.09);
    --accent:#06b6d4;
    --ok:#10b981;
    --warn:#f59e0b;
    --shadow-sm:0 1px 2px rgba(16,24,40,.05);
    --shadow:0 4px 14px rgba(16,24,40,.07);
    --shadow-lg:0 18px 44px rgba(16,24,40,.12);
    --radius:14px;
    --radius-sm:9px;
    --radius-lg:20px;
    --maxw:1320px;
    --header-h:64px;
}
[data-theme="dark"]{
    --bg:#0b0c10;
    --bg-soft:#12141a;
    --surface:#16181f;
    --surface-2:#1b1e26;
    --text:#eceef3;
    --text-2:#9aa4b8;
    --text-3:#6b7488;
    --border:#262a34;
    --border-2:#323846;
    --brand:#7c76ff;
    --brand-2:#a78bfa;
    --brand-soft:rgba(124,118,255,.14);
    --shadow-sm:0 1px 2px rgba(0,0,0,.4);
    --shadow:0 4px 14px rgba(0,0,0,.45);
    --shadow-lg:0 18px 44px rgba(0,0,0,.6);
}

/* ---------- 基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
    margin:0;
    min-height:100vh;
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    color:var(--text);
    font-size:15px;
    line-height:1.65;
    -webkit-font-smoothing:antialiased;
    transition:color .25s ease;
}
body::before{
    content:"";
    position:fixed;
    inset:-50%;
    z-index:-1;
    background-image:radial-gradient(circle at center,
        #e6e6fa 0%,#f2eada 20%,#f0f8ff 40%,#D1EEEE 70%,#FFF7ED 100%);
    animation:pan-background 10s ease-in-out infinite alternate;
}
/* 暗黑模式背景：与浅色版同色系但低明度，呼应 --bg:#0b0c10 */
[data-theme="dark"] body::before{
    background-image:radial-gradient(circle at center,
        #2a1f3d 0%,#251c2e 20%,#1a1f2e 40%,#0d2233 70%,#251c18 100%);
}
@keyframes pan-background{
    from{transform:translate(-20%,-20%)}
    to  {transform:translate(20%,20%)}
}
@media (prefers-reduced-motion: reduce){
    body::before{animation:none}
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border:0}
button,input,select{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 顶部导航 ---------- */
.hd{
    position:sticky;top:0;z-index:80;
    background:color-mix(in srgb,var(--surface) 88%,transparent);
    backdrop-filter:saturate(180%) blur(14px);
    -webkit-backdrop-filter:saturate(180%) blur(14px);
    border-bottom:1px solid var(--border);
}
.hd-in{display:flex;align-items:center;gap:20px;height:var(--header-h)}
.logo{display:flex;align-items:center;gap:9px;font-size:19px;font-weight:800;letter-spacing:-.02em;flex-shrink:0}
.logo img{height:30px;width:auto;border-radius:7px}
.logo b{background:linear-gradient(92deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}

.hd-nav{display:flex;gap:2px;flex:1;overflow-x:auto;scrollbar-width:none}
.hd-nav::-webkit-scrollbar{display:none}
.hd-nav a{
    padding:7px 12px;border-radius:8px;font-size:13.5px;color:var(--text-2);
    white-space:nowrap;transition:.16s;font-weight:500;
}
.hd-nav a:hover{background:var(--brand-soft);color:var(--brand)}
.hd-nav a.on{background:var(--brand-soft);color:var(--brand);font-weight:600}

.hd-tools{display:flex;align-items:center;gap:8px;flex-shrink:0}
.icon-btn{
    width:36px;height:36px;display:grid;place-items:center;cursor:pointer;
    border:1px solid var(--border);background:var(--surface);border-radius:9px;
    transition:.16s;padding:0;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.icon-btn svg{width:17px;height:17px}
[data-theme="dark"] .ico-sun{display:none}
.ico-moon{display:none}
[data-theme="dark"] .ico-moon{display:block}

/* ---------- Hero ---------- */
.hero{padding:52px 0 34px;text-align:center;position:relative;overflow:hidden}
.hero::before{
    content:"";position:absolute;inset:-40% -10% auto -10%;height:420px;z-index:-1;
    background:radial-gradient(48% 52% at 50% 0%,var(--brand-soft),transparent 72%);
}
.hero h1{font-size:clamp(28px,4.4vw,46px);letter-spacing:-.03em;margin-bottom:12px}
.hero h1 em{font-style:normal;background:linear-gradient(92deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:var(--text-2);font-size:16px;max-width:640px;margin:0 auto 26px}

/* 巨型搜索框 */
.sbox{
    max-width:660px;margin:0 auto;position:relative;
    display:flex;align-items:center;background:var(--surface);
    border:1px solid var(--border-2);border-radius:999px;
    padding:5px 5px 5px 20px;box-shadow:var(--shadow-lg);
    transition:.2s;
}
.sbox:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft),var(--shadow-lg)}
.sbox svg{width:19px;height:19px;color:var(--text-3);flex-shrink:0}
.sbox input{
    flex:1;border:0;outline:0;background:transparent;padding:12px 12px;font-size:15.5px;min-width:0;
}
.sbox input::placeholder{color:var(--text-3)}
.sbox button{
    border:0;cursor:pointer;padding:12px 28px;border-radius:999px;font-weight:600;font-size:14.5px;
    background:linear-gradient(92deg,var(--brand),var(--brand-2));color:#fff;transition:.18s;white-space:nowrap;
}
.sbox button:hover{filter:brightness(1.08);transform:translateY(-1px)}

.hotkeys{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:16px;font-size:13px;color:var(--text-3)}
.hotkeys span{margin-right:2px}
.hotkeys a{
    padding:4px 11px;border-radius:999px;background:var(--surface);
    border:1px solid var(--border);color:var(--text-2);transition:.16s;
}
.hotkeys a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}

.stats{display:flex;justify-content:center;gap:38px;margin-top:30px;flex-wrap:wrap}
.stat b{display:block;font-size:26px;font-weight:800;letter-spacing:-.02em;line-height:1.2}
.stat span{font-size:12.5px;color:var(--text-3)}

/* ---------- 区块 ---------- */
.sec{padding:34px 0}
.sec-hd{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.sec-hd h2{font-size:20px;letter-spacing:-.02em;display:flex;align-items:center;gap:9px}
.sec-hd h2::before{content:"";width:4px;height:19px;border-radius:2px;background:linear-gradient(var(--brand),var(--brand-2))}
.sec-hd .more{font-size:13.5px;color:var(--text-3);transition:.16s}
.sec-hd .more:hover{color:var(--brand)}

/* ---------- 分类快捷入口 ---------- */
.catgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(158px,1fr));gap:11px}
.catgrid a{
    display:flex;align-items:center;gap:11px;padding:13px 14px;
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);
    transition:.18s;
}
.catgrid a:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}
.cg-ico{
    width:34px;height:34px;flex-shrink:0;display:grid;place-items:center;border-radius:9px;
    background:var(--brand-soft);color:var(--brand);font-weight:700;font-size:15px;
}
.cg-txt{min-width:0}
.cg-txt b{display:block;font-size:13.8px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cg-txt i{font-style:normal;font-size:11.5px;color:var(--text-3)}

/* ---------- 卡片墙 ---------- */
.cardgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(272px,1fr));gap:13px}
.card{
    position:relative;display:flex;flex-direction:column;gap:9px;padding:16px;
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
    transition:.2s cubic-bezier(.2,.7,.3,1);
}
.card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-lg);z-index:2}
.card-top{display:flex;gap:11px;align-items:flex-start}
.card-ico{
    width:42px;height:42px;flex-shrink:0;border-radius:10px;display:grid;place-items:center;
    background:var(--bg-soft);border:1px solid var(--border);overflow:hidden;
    font-weight:800;font-size:17px;color:var(--brand);
}
.card-ico img{width:100%;height:100%;object-fit:cover}
.card-hd{min-width:0;flex:1}
.card-hd h3{font-size:15px;font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;letter-spacing:-.01em}
.card-hd h3 a:hover{color:var(--brand)}
.card-cat{font-size:11.5px;color:var(--text-3);margin-top:1px}
.card-desc{
    font-size:13.2px;color:var(--text-2);line-height:1.6;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:42px;
}
.card-tags{display:flex;flex-wrap:wrap;gap:5px;min-height:22px}
.tag{
    font-size:11px;padding:2px 8px;border-radius:6px;background:var(--bg-soft);
    color:var(--text-2);border:1px solid transparent;transition:.16s;
}
a.tag:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand)}
.card-ft{display:flex;align-items:center;justify-content:space-between;gap:8px;padding-top:9px;border-top:1px solid var(--border)}
.badges{display:flex;gap:5px;flex-wrap:wrap}
.bd{font-size:10.5px;padding:2px 7px;border-radius:5px;font-weight:600;white-space:nowrap}
.bd.free{background:rgba(16,185,129,.13);color:#0d9668}
[data-theme="dark"] .bd.free{color:#34d399}
.bd.fremium{background:rgba(245,158,11,.14);color:#b45309}
[data-theme="dark"] .bd.fremium{color:#fbbf24}
.bd.paid{background:rgba(239,68,68,.12);color:#dc2626}
[data-theme="dark"] .bd.paid{color:#f87171}
.bd.opensource{background:rgba(6,182,212,.13);color:#0891b2}
[data-theme="dark"] .bd.opensource{color:#22d3ee}
.bd.lang{background:var(--bg-soft);color:var(--text-3);font-weight:500}
.go{
    font-size:12.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:3px;
    white-space:nowrap;
}
.go::after{content:"→";transition:transform .18s}
.card:hover .go::after{transform:translateX(3px)}

/* ---------- 筛选条 ---------- */
.filters{display:flex;flex-wrap:wrap;gap:9px;padding:13px 15px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:18px}
.fgroup{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.fgroup>span{font-size:12.5px;color:var(--text-3);font-weight:500}
.fgroup a{
    font-size:12.5px;padding:4px 11px;border-radius:7px;border:1px solid var(--border);
    color:var(--text-2);transition:.16s;
}
.fgroup a:hover{border-color:var(--brand);color:var(--brand)}
.fgroup a.on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-3);padding:16px 0 0;flex-wrap:wrap}
.crumb a:hover{color:var(--brand)}
.crumb i{font-style:normal;opacity:.5}

/* ---------- 详情页 ---------- */
.detail{display:grid;grid-template-columns:1fr 316px;gap:22px;align-items:start;padding:22px 0 40px}
@media(max-width:960px){.detail{grid-template-columns:1fr}}
.dmain{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px}
.dhd{display:flex;gap:17px;align-items:flex-start;padding-bottom:20px;border-bottom:1px solid var(--border)}
.dhd-ico{width:66px;height:66px;border-radius:15px;display:grid;place-items:center;background:var(--bg-soft);border:1px solid var(--border);font-size:27px;font-weight:800;color:var(--brand);overflow:hidden;flex-shrink:0}
.dhd-ico img{width:100%;height:100%;object-fit:cover}
.dhd-txt{flex:1;min-width:0}
.dhd-txt h1{font-size:25px;letter-spacing:-.025em;margin-bottom:7px}
.dmeta{display:flex;flex-wrap:wrap;gap:7px;align-items:center}
.dacts{display:flex;gap:9px;margin-top:15px;flex-wrap:wrap}
.btn{
    display:inline-flex;align-items:center;gap:6px;padding:10px 22px;border-radius:9px;
    font-size:14px;font-weight:600;transition:.18s;border:1px solid transparent;cursor:pointer;
}
.btn-p{background:linear-gradient(92deg,var(--brand),var(--brand-2));color:#fff}
.btn-p:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--shadow)}
.btn-o{border-color:var(--border-2);color:var(--text-2);background:var(--surface)}
.btn-o:hover{border-color:var(--brand);color:var(--brand)}

.dbody{padding-top:20px;font-size:14.6px;line-height:1.85;color:var(--text-2)}
.dbody h2,.dbody h3{color:var(--text);margin:22px 0 10px;font-size:17px}
.dbody p{margin-bottom:13px}
.dbody a{color:var(--brand);text-decoration:underline;text-underline-offset:2px}
.dbody img{border-radius:10px;margin:13px 0}

.side{display:flex;flex-direction:column;gap:14px;position:sticky;top:calc(var(--header-h) + 18px)}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:17px}
.panel h3{font-size:14.5px;margin-bottom:12px;display:flex;align-items:center;gap:7px}
.panel h3::before{content:"";width:3px;height:14px;border-radius:2px;background:linear-gradient(var(--brand),var(--brand-2))}
.kv{display:flex;justify-content:space-between;gap:12px;font-size:13.2px;padding:7px 0;border-bottom:1px dashed var(--border)}
.kv:last-child{border-bottom:0}
.kv span{color:var(--text-3);flex-shrink:0}
.kv b{font-weight:600;text-align:right;word-break:break-all}

.rel{display:flex;flex-direction:column;gap:9px}
.rel a{display:flex;gap:9px;align-items:center;padding:7px;border-radius:9px;transition:.16s}
.rel a:hover{background:var(--bg-soft)}
.rel-ico{width:30px;height:30px;border-radius:8px;background:var(--bg-soft);display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--brand);flex-shrink:0;overflow:hidden}
.rel-ico img{width:100%;height:100%;object-fit:cover}
.rel-txt{min-width:0}
.rel-txt b{display:block;font-size:13.2px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rel-txt i{font-style:normal;font-size:11.5px;color:var(--text-3)}

/* ---------- 翻页 ---------- */
.pages{display:flex;gap:6px;justify-content:center;flex-wrap:wrap;padding:30px 0 8px}
.pages a,.pages span{
    min-width:36px;height:36px;padding:0 11px;display:grid;place-items:center;border-radius:9px;
    font-size:13.5px;border:1px solid var(--border);background:var(--surface);color:var(--text-2);transition:.16s;
}
.pages a:hover{border-color:var(--brand);color:var(--brand)}
.pages .on,.pages span.on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* ---------- 空状态 ---------- */
.empty{text-align:center;padding:64px 20px;color:var(--text-3)}
.empty b{display:block;font-size:44px;margin-bottom:11px;opacity:.45}
.empty p{font-size:14.5px;margin-bottom:17px}

/* ---------- 底部 ---------- */
.ft{margin-top:52px;border-top:1px solid var(--border);background:var(--surface);padding:38px 0 26px}
.ft-top{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:30px;padding-bottom:26px;border-bottom:1px solid var(--border)}
@media(max-width:820px){.ft-top{grid-template-columns:1fr 1fr;gap:22px}}
.ft-brand p{font-size:13.2px;color:var(--text-2);margin-top:11px;max-width:330px;line-height:1.7}
.ft-col h4{font-size:13.5px;margin-bottom:11px;color:var(--text)}
.ft-col a{display:block;font-size:13px;color:var(--text-2);padding:3.5px 0;transition:.16s}
.ft-col a:hover{color:var(--brand)}
.ft-bot{display:flex;justify-content:space-between;align-items:center;gap:14px;padding-top:20px;font-size:12.5px;color:var(--text-3);flex-wrap:wrap}
.ft-bot a:hover{color:var(--brand)}

/* ---------- 回到顶部 ---------- */
.totop{
    position:fixed;right:20px;bottom:20px;width:42px;height:42px;border-radius:50%;
    background:var(--surface);border:1px solid var(--border);display:grid;place-items:center;cursor:pointer;
    box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.22s;z-index:70;
}
.totop.show{opacity:1;visibility:visible}
.totop:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media(max-width:900px){
    .hd-nav{display:none}
    .hero{padding:34px 0 24px}
    .stats{gap:26px}
    .cardgrid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
}
@media(max-width:640px){
    .wrap{padding:0 15px}
    .sbox{padding:4px 4px 4px 15px}
    .sbox button{padding:11px 18px;font-size:13.5px}
    .dmain{padding:19px}
    .dhd{flex-direction:column;gap:13px}
    .cardgrid{grid-template-columns:1fr}
    .ft-top{grid-template-columns:1fr}
    .side{position:static}
}

/* ---------- 打印 ---------- */
@media print{
    .hd,.ft,.totop,.sbox,.filters{display:none!important}
    body{background:#fff}
    .card{border:1px solid #ddd;break-inside:avoid}
}
/* ==========================================================
   ainav_seo 增强组件 v2 —— 详情页 Hero / 信息矩阵 / FAQ / 排行
   追加写入，不覆盖原有样式
   ========================================================== */

/* ---------- 详情页 HERO ---------- */
.dhero{
    position:relative;overflow:hidden;
    background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 55%,#a855f7 100%);
    border-radius:var(--radius-lg);padding:34px 36px;margin:18px 0 22px;color:#fff;
    box-shadow:0 20px 50px -12px rgba(79,70,229,.45);
}
[data-theme="dark"] .dhero{box-shadow:0 20px 50px -12px rgba(0,0,0,.6)}
.dhero::before{
    content:"";position:absolute;right:-70px;top:-90px;width:320px;height:320px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,255,255,.22),transparent 68%);
}
.dhero::after{
    content:"";position:absolute;left:-40px;bottom:-120px;width:260px;height:260px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,255,255,.13),transparent 70%);
}
.dhero-in{position:relative;z-index:2;display:flex;gap:24px;align-items:flex-start;flex-wrap:wrap}
.dhero-ico{
    width:88px;height:88px;flex-shrink:0;border-radius:20px;background:rgba(255,255,255,.19);
    border:1px solid rgba(255,255,255,.32);display:grid;place-items:center;overflow:hidden;
    font-size:34px;font-weight:800;color:#fff;backdrop-filter:blur(8px);
    box-shadow:0 8px 24px rgba(0,0,0,.16);
}
.dhero-ico img{width:100%;height:100%;object-fit:cover}
.dhero-txt{flex:1;min-width:260px}
.dhero-txt h1{font-size:clamp(26px,3.6vw,38px);letter-spacing:-.03em;margin-bottom:9px;color:#fff}
.dhero-sub{font-size:15.5px;line-height:1.65;opacity:.94;max-width:660px;margin-bottom:15px}
.dhero-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:18px}
.dhero-tags span{
    font-size:12px;padding:4px 11px;border-radius:999px;background:rgba(255,255,255,.2);
    border:1px solid rgba(255,255,255,.28);backdrop-filter:blur(4px);
}
.dhero-acts{display:flex;gap:10px;flex-wrap:wrap}
.btn-hero{
    display:inline-flex;align-items:center;gap:7px;padding:12px 26px;border-radius:11px;
    font-size:15px;font-weight:700;background:#fff;color:var(--brand);transition:.2s;
    box-shadow:0 6px 18px rgba(0,0,0,.14);
}
.btn-hero:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,0,0,.2)}
.btn-ghost{
    display:inline-flex;align-items:center;gap:7px;padding:12px 24px;border-radius:11px;
    font-size:15px;font-weight:600;background:rgba(255,255,255,.16);color:#fff;
    border:1px solid rgba(255,255,255,.34);transition:.2s;backdrop-filter:blur(4px);
}
.btn-ghost:hover{background:rgba(255,255,255,.26)}
.dhero-stats{display:flex;gap:26px;margin-left:auto;flex-wrap:wrap}
.dhero-stat{text-align:center}
.dhero-stat b{display:block;font-size:27px;font-weight:800;line-height:1.15;letter-spacing:-.02em}
.dhero-stat i{font-style:normal;font-size:12px;opacity:.88}

/* ---------- 区块标题 ---------- */
.blk{padding:26px 0;border-top:1px solid var(--border)}
.blk:first-of-type{border-top:0}
.blk-hd{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.blk-hd h2{font-size:18.5px;letter-spacing:-.02em}
.blk-hd h2::before{content:"";width:4px;height:17px;border-radius:2px;background:linear-gradient(var(--brand),var(--brand-2));display:inline-block;margin-right:9px;vertical-align:-2px}
.blk-hd .cnt{font-size:12.5px;color:var(--text-3);margin-left:auto}

/* ---------- 信息矩阵 ---------- */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(178px,1fr));gap:11px}
.info-cell{
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);
    padding:14px 16px;transition:.18s;
}
.info-cell:hover{border-color:var(--brand);box-shadow:var(--shadow)}
.info-cell dt{font-size:11.5px;color:var(--text-3);margin-bottom:5px;text-transform:uppercase;letter-spacing:.04em}
.info-cell dd{margin:0;font-size:14.5px;font-weight:650;word-break:break-all}
.info-cell dd a{color:var(--brand)}
.info-cell dd a:hover{text-decoration:underline}

/* ---------- 亮点特性 ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));gap:12px}
.feat{
    display:flex;gap:12px;padding:16px;background:var(--surface);
    border:1px solid var(--border);border-radius:var(--radius-sm);transition:.18s;
}
.feat:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}
.feat-ico{
    width:34px;height:34px;flex-shrink:0;border-radius:9px;display:grid;place-items:center;
    background:var(--brand-soft);color:var(--brand);font-size:15px;font-weight:800;
}
.feat-txt b{display:block;font-size:14px;margin-bottom:3px}
.feat-txt i{font-style:normal;font-size:12.5px;color:var(--text-2);line-height:1.55}

/* ---------- FAQ ---------- */
.faq{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface)}
.faq details{border-bottom:1px solid var(--border)}
.faq details:last-child{border-bottom:0}
.faq summary{
    cursor:pointer;padding:15px 18px;font-size:14.5px;font-weight:600;list-style:none;
    display:flex;align-items:center;gap:10px;transition:.15s;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:var(--bg-soft);color:var(--brand)}
.faq summary::before{
    content:"+";flex-shrink:0;width:20px;height:20px;border-radius:5px;background:var(--brand-soft);
    color:var(--brand);display:grid;place-items:center;font-size:15px;font-weight:700;
}
.faq details[open] summary::before{content:"−"}
.faq details[open] summary{color:var(--brand)}
.faq-body{padding:0 18px 16px 48px;font-size:14px;line-height:1.8;color:var(--text-2)}

/* ---------- 排行榜 ---------- */
.rank{display:flex;flex-direction:column;gap:3px}
.rank a{display:flex;align-items:center;gap:11px;padding:9px;border-radius:9px;transition:.16s}
.rank a:hover{background:var(--bg-soft)}
.rank-no{
    width:22px;height:22px;flex-shrink:0;border-radius:6px;display:grid;place-items:center;
    font-size:11.5px;font-weight:800;background:var(--bg-soft);color:var(--text-3);
}
.rank a:nth-child(1) .rank-no{background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff}
.rank a:nth-child(2) .rank-no{background:linear-gradient(135deg,#94a3b8,#cbd5e1);color:#fff}
.rank a:nth-child(3) .rank-no{background:linear-gradient(135deg,#b45309,#d97706);color:#fff}
.rank-ico{width:28px;height:28px;border-radius:7px;background:var(--bg-soft);display:grid;place-items:center;font-size:12px;font-weight:700;color:var(--brand);flex-shrink:0;overflow:hidden}
.rank-ico img{width:100%;height:100%;object-fit:cover}
.rank-txt{min-width:0;flex:1}
.rank-txt b{display:block;font-size:13.2px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-txt i{font-style:normal;font-size:11.5px;color:var(--text-3)}
.rank-hits{font-size:11.5px;color:var(--text-3);flex-shrink:0}

/* ---------- 快捷访问卡 ---------- */
.quick{
    background:linear-gradient(135deg,var(--surface),var(--surface-2));
    border:1px solid var(--border);border-radius:var(--radius);padding:17px;text-align:center;
}
.quick .qdom{
    font-size:12.5px;color:var(--text-3);margin-bottom:12px;word-break:break-all;
    padding:8px;background:var(--bg-soft);border-radius:8px;
}
.quick .btn-p{width:100%;justify-content:center}

/* ---------- 标签云 ---------- */
.tagcloud{display:flex;flex-wrap:wrap;gap:8px}
.tagcloud a{
    font-size:13px;padding:6px 14px;border-radius:999px;background:var(--surface);
    border:1px solid var(--border);color:var(--text-2);transition:.16s;
}
.tagcloud a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);transform:translateY(-1px)}

/* ---------- 栏目页 HERO ---------- */
.chero{
    position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--border);
    border-radius:var(--radius-lg);padding:30px 32px;margin:18px 0 20px;
}
.chero::before{
    content:"";position:absolute;inset:0;z-index:0;
    background:radial-gradient(70% 130% at 8% 0%,var(--brand-soft),transparent 62%);
}
.chero-in{position:relative;z-index:2}
.chero-in h1{font-size:clamp(24px,3.4vw,34px);letter-spacing:-.03em;margin-bottom:10px}
.chero-desc{font-size:15px;color:var(--text-2);line-height:1.7;max-width:720px;margin-bottom:18px}
.chero-stats{display:flex;gap:30px;flex-wrap:wrap}
.chero-stat b{display:block;font-size:25px;font-weight:800;letter-spacing:-.02em;line-height:1.2}
.chero-stat span{font-size:12.5px;color:var(--text-3)}

/* ---------- 面包屑导航条 ---------- */
.subnav{
    display:flex;gap:6px;flex-wrap:wrap;padding:9px;margin-bottom:18px;
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);
}
.subnav a{
    font-size:13px;padding:5px 12px;border-radius:7px;color:var(--text-2);transition:.15s;
}
.subnav a:hover{background:var(--brand-soft);color:var(--brand)}
.subnav a.on{background:var(--brand);color:#fff;font-weight:600}

/* ---------- 响应式 ---------- */
@media(max-width:820px){
    .dhero{padding:26px 22px}
    .dhero-in{gap:18px}
    .dhero-ico{width:66px;height:66px;font-size:26px;border-radius:16px}
    .dhero-stats{margin-left:0;gap:20px;width:100%;padding-top:6px;border-top:1px solid rgba(255,255,255,.22)}
    .chero{padding:22px}
    .faq-body{padding-left:18px}
}

/* ==========================================================
   ainav_seo  v3  决策型详情页增强组件
   设计取向：大留白 · 强层次 · 决策辅助
   ========================================================== */

/* ---------- 详情页 HERO（渐变 + 光晕） ---------- */
.dhero{
    position:relative;overflow:hidden;
    background:linear-gradient(135deg,#4f46e5 0%,#7c3aed 48%,#a855f7 100%);
    border-radius:22px;padding:38px 40px;margin:20px 0 26px;color:#fff;
    box-shadow:0 24px 60px -16px rgba(79,70,229,.5);
}
.dhero::before{
    content:"";position:absolute;right:-80px;top:-100px;width:340px;height:340px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,255,255,.22),transparent 68%);
}
.dhero::after{
    content:"";position:absolute;left:-50px;bottom:-130px;width:280px;height:280px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,255,255,.12),transparent 70%);
}
.dhero-in{position:relative;z-index:2;display:flex;gap:26px;align-items:flex-start;flex-wrap:wrap}
.dhero-ico{
    width:92px;height:92px;flex-shrink:0;border-radius:22px;background:rgba(255,255,255,.2);
    border:1px solid rgba(255,255,255,.34);display:grid;place-items:center;overflow:hidden;
    font-size:36px;font-weight:800;color:#fff;box-shadow:0 10px 28px rgba(0,0,0,.18);
}
.dhero-ico img{width:100%;height:100%;object-fit:cover}
.dhero-txt{flex:1;min-width:280px}
.dhero-txt h1{font-size:clamp(27px,3.8vw,40px);letter-spacing:-.035em;margin-bottom:10px;color:#fff;line-height:1.15}
.dhero-sub{font-size:15.5px;line-height:1.7;opacity:.95;max-width:680px;margin-bottom:16px}
.dhero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.dhero-tags span{
    font-size:12px;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.2);
    border:1px solid rgba(255,255,255,.3);
}
.dhero-acts{display:flex;gap:11px;flex-wrap:wrap}
.btn-hero{
    display:inline-flex;align-items:center;gap:7px;padding:13px 28px;border-radius:12px;
    font-size:15px;font-weight:700;background:#fff;color:#4f46e5;transition:.2s;
    box-shadow:0 8px 20px rgba(0,0,0,.16);
}
.btn-hero:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.22)}
.btn-ghost{
    display:inline-flex;align-items:center;gap:7px;padding:13px 24px;border-radius:12px;
    font-size:15px;font-weight:600;background:rgba(255,255,255,.16);color:#fff;
    border:1px solid rgba(255,255,255,.36);transition:.2s;
}
.btn-ghost:hover{background:rgba(255,255,255,.27)}
.dhero-stats{display:flex;gap:28px;margin-left:auto;flex-wrap:wrap}
.dhero-stat{text-align:center}
.dhero-stat b{display:block;font-size:28px;font-weight:800;line-height:1.15;letter-spacing:-.02em}
.dhero-stat i{font-style:normal;font-size:12px;opacity:.9}

/* ---------- 通用区块 ---------- */
.blk{padding:28px 0;border-top:1px solid var(--border)}
.blk:first-of-type{border-top:0;padding-top:4px}
.blk-hd{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.blk-hd h2{font-size:19px;letter-spacing:-.025em}
.blk-hd h2::before{
    content:"";width:4px;height:18px;border-radius:2px;
    background:linear-gradient(var(--brand),var(--brand-2));
    display:inline-block;margin-right:10px;vertical-align:-2px;
}
.blk-hd .cnt{font-size:12.5px;color:var(--text-3);margin-left:auto}

/* ---------- 信息矩阵 ---------- */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}
.info-cell{
    background:var(--surface);border:1px solid var(--border);border-radius:12px;
    padding:15px 17px;transition:.18s;
}
.info-cell:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-1px)}
.info-cell dt{
    font-size:11.5px;color:var(--text-3);margin-bottom:6px;
    text-transform:uppercase;letter-spacing:.05em;font-weight:600;
}
.info-cell dd{margin:0;font-size:14.5px;font-weight:650;word-break:break-all;line-height:1.4}
.info-cell dd a{color:var(--brand)}
.info-cell dd a:hover{text-decoration:underline}

/* ---------- 适合 / 不适合 双栏（差异化核心） ---------- */
.verdict{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:760px){.verdict{grid-template-columns:1fr}}
.vcard{
    border-radius:14px;padding:20px 22px;border:1px solid var(--border);
    background:var(--surface);
}
.vcard.yes{border-left:4px solid #10b981}
.vcard.no{border-left:4px solid #f59e0b}
.vcard h3{
    font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px;
    font-weight:700;letter-spacing:-.01em;
}
.vcard.yes h3{color:#0d9668}
.vcard.no h3{color:#b45309}
[data-theme="dark"] .vcard.yes h3{color:#34d399}
[data-theme="dark"] .vcard.no h3{color:#fbbf24}
.vcard ul{display:flex;flex-direction:column;gap:9px}
.vcard li{
    list-style:none;font-size:13.8px;line-height:1.6;color:var(--text-2);
    padding-left:24px;position:relative;
}
.vcard li::before{
    position:absolute;left:0;top:1px;width:16px;height:16px;border-radius:50%;
    display:grid;place-items:center;font-size:10px;font-weight:800;color:#fff;
}
.vcard.yes li::before{content:"✓";background:#10b981}
.vcard.no li::before{content:"!";background:#f59e0b}

/* ---------- 场景卡片 ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:13px}
.feat{
    display:flex;gap:13px;padding:18px;background:var(--surface);
    border:1px solid var(--border);border-radius:12px;transition:.2s;
}
.feat:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}
.feat-ico{
    width:36px;height:36px;flex-shrink:0;border-radius:10px;display:grid;place-items:center;
    background:var(--brand-soft);color:var(--brand);font-size:15px;font-weight:800;
}
.feat-txt b{display:block;font-size:14px;margin-bottom:4px;letter-spacing:-.01em}
.feat-txt i{font-style:normal;font-size:12.8px;color:var(--text-2);line-height:1.6}

/* ---------- 同类对比表 ---------- */
.compare{width:100%;border-collapse:collapse;font-size:13.5px;background:var(--surface);
    border:1px solid var(--border);border-radius:12px;overflow:hidden}
.compare thead th{
    background:var(--bg-soft);padding:12px 14px;text-align:left;font-weight:650;
    font-size:12.5px;color:var(--text-2);border-bottom:1px solid var(--border);
    text-transform:uppercase;letter-spacing:.04em;
}
.compare td{padding:12px 14px;border-bottom:1px solid var(--border);vertical-align:middle}
.compare tbody tr:last-child td{border-bottom:0}
.compare tbody tr:hover{background:var(--bg-soft)}
.compare .cname{font-weight:650}
.compare .cname a:hover{color:var(--brand)}
.compare .cthumb{
    width:26px;height:26px;border-radius:7px;background:var(--bg-soft);display:inline-grid;
    place-items:center;font-size:12px;font-weight:700;color:var(--brand);
    margin-right:9px;vertical-align:middle;overflow:hidden;
}
.compare .cthumb img{width:100%;height:100%;object-fit:cover}
.compare .cnow{
    background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;
    padding:2px 9px;border-radius:6px;font-size:11px;font-weight:700;margin-left:8px;
}
@media(max-width:700px){
    .compare{font-size:12.5px}
    .compare td,.compare thead th{padding:9px 10px}
}

/* ---------- FAQ 手风琴 ---------- */
.faq{border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--surface)}
.faq details{border-bottom:1px solid var(--border)}
.faq details:last-child{border-bottom:0}
.faq summary{
    cursor:pointer;padding:16px 20px;font-size:14.5px;font-weight:600;list-style:none;
    display:flex;align-items:center;gap:11px;transition:.15s;letter-spacing:-.01em;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:var(--bg-soft);color:var(--brand)}
.faq summary::before{
    content:"+";flex-shrink:0;width:21px;height:21px;border-radius:6px;background:var(--brand-soft);
    color:var(--brand);display:grid;place-items:center;font-size:15px;font-weight:700;transition:.2s;
}
.faq details[open] summary::before{content:"−";background:var(--brand);color:#fff}
.faq details[open] summary{color:var(--brand)}
.faq-body{padding:0 20px 18px 52px;font-size:14px;line-height:1.85;color:var(--text-2)}

/* ---------- 排行榜 ---------- */
.rank{display:flex;flex-direction:column;gap:2px}
.rank a{display:flex;align-items:center;gap:11px;padding:9px;border-radius:10px;transition:.16s}
.rank a:hover{background:var(--bg-soft)}
.rank-no{
    width:22px;height:22px;flex-shrink:0;border-radius:6px;display:grid;place-items:center;
    font-size:11.5px;font-weight:800;background:var(--bg-soft);color:var(--text-3);
}
.rank a:nth-child(1) .rank-no{background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff}
.rank a:nth-child(2) .rank-no{background:linear-gradient(135deg,#94a3b8,#cbd5e1);color:#fff}
.rank a:nth-child(3) .rank-no{background:linear-gradient(135deg,#b45309,#d97706);color:#fff}
.rank-ico{
    width:28px;height:28px;border-radius:8px;background:var(--bg-soft);display:grid;
    place-items:center;font-size:12px;font-weight:700;color:var(--brand);flex-shrink:0;overflow:hidden;
}
.rank-ico img{width:100%;height:100%;object-fit:cover}
.rank-txt{min-width:0;flex:1}
.rank-txt b{display:block;font-size:13.2px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-txt i{font-style:normal;font-size:11.5px;color:var(--text-3)}
.rank-hits{font-size:11.5px;color:var(--text-3);flex-shrink:0}

/* ---------- 快捷访问卡 ---------- */
.quick{
    background:linear-gradient(135deg,var(--surface),var(--surface-2));
    border:1px solid var(--border);border-radius:14px;padding:18px;text-align:center;
}
.quick .qdom{
    font-size:12.5px;color:var(--text-3);margin-bottom:13px;word-break:break-all;
    padding:9px;background:var(--bg-soft);border-radius:9px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}
.quick .btn-p{width:100%;justify-content:center}

/* ---------- 标签云 ---------- */
.tagcloud{display:flex;flex-wrap:wrap;gap:8px}
.tagcloud a{
    font-size:13px;padding:6px 15px;border-radius:999px;background:var(--surface);
    border:1px solid var(--border);color:var(--text-2);transition:.16s;
}
.tagcloud a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);transform:translateY(-1px)}

/* ---------- 栏目页 HERO ---------- */
.chero{
    position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--border);
    border-radius:20px;padding:32px 34px;margin:20px 0 22px;
}
.chero::before{
    content:"";position:absolute;inset:0;z-index:0;
    background:radial-gradient(72% 140% at 8% 0%,var(--brand-soft),transparent 62%);
}
.chero-in{position:relative;z-index:2}
.chero-in h1{font-size:clamp(25px,3.5vw,36px);letter-spacing:-.035em;margin-bottom:11px}
.chero-desc{font-size:15px;color:var(--text-2);line-height:1.75;max-width:740px;margin-bottom:20px}
.chero-stats{display:flex;gap:32px;flex-wrap:wrap}
.chero-stat b{display:block;font-size:26px;font-weight:800;letter-spacing:-.025em;line-height:1.2}
.chero-stat span{font-size:12.5px;color:var(--text-3)}

/* ---------- 子栏目导航条 ---------- */
.subnav{
    display:flex;gap:6px;flex-wrap:wrap;padding:10px;margin-bottom:20px;
    background:var(--surface);border:1px solid var(--border);border-radius:12px;
}
.subnav a{font-size:13px;padding:6px 13px;border-radius:8px;color:var(--text-2);transition:.15s}
.subnav a:hover{background:var(--brand-soft);color:var(--brand)}
.subnav a.on{background:var(--brand);color:#fff;font-weight:600}

/* ---------- 响应式 ---------- */
@media(max-width:860px){
    .dhero{padding:28px 24px}
    .dhero-in{gap:20px}
    .dhero-ico{width:70px;height:70px;font-size:28px;border-radius:18px}
    .dhero-stats{
        margin-left:0;gap:22px;width:100%;padding-top:8px;
        border-top:1px solid rgba(255,255,255,.24);
    }
    .chero{padding:24px}
    .faq-body{padding-left:20px}
    .compare{display:block;overflow-x:auto;white-space:nowrap}
}