/* roulang page: index */
:root{
      --ink:#171526;
      --muted:#77748a;
      --paper:#fffaff;
      --soft:#f8eff7;
      --line:#eadfea;
      --pink:#ee4d91;
      --pink-deep:#c9276d;
      --violet:#7652df;
      --orange:#ff9b5c;
      --green:#2aa982;
      --shadow:0 18px 50px rgba(67,28,79,.12);
      --shadow-sm:0 8px 24px rgba(67,28,79,.09);
      --radius:24px;
      --radius-sm:14px;
      --max:1180px;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;object-fit:cover}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(238,77,145,.38);outline-offset:3px}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .topline{height:4px;background:linear-gradient(90deg,var(--violet),var(--pink),var(--orange))}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(234,223,234,.85)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;min-width:225px}
    .brand-mark{width:40px;height:40px;border-radius:13px;background:linear-gradient(135deg,var(--violet),var(--pink));color:#fff;display:grid;place-items:center;font-size:17px;font-weight:900;box-shadow:0 7px 18px rgba(201,39,109,.22)}
    .brand-name{font-size:17px;font-weight:800;letter-spacing:0}
    .nav{display:flex;align-items:center;gap:25px;font-size:14px;color:#686477}
    .nav a{position:relative;padding:25px 0;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--pink-deep)}
    .nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;border-radius:5px;background:var(--pink)}
    .nav-cta{padding:11px 17px!important;border-radius:999px;background:var(--ink);color:#fff!important;font-weight:700}
    .nav-cta:hover{background:var(--pink-deep)}
    .menu-toggle{display:none;background:none;font-size:24px;color:var(--ink)}
    .hero{min-height:650px;position:relative;display:flex;align-items:center;overflow:hidden;background:#201529}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(24,14,31,.93) 0%,rgba(32,21,41,.68) 47%,rgba(32,21,41,.18) 100%),url("https://images.unsplash.com/photo-1515886657613-9f3515b0c78f?auto=format&fit=crop&w=1900&q=90") center/cover}
    .hero-content{position:relative;z-index:1;width:min(var(--max),calc(100% - 40px));margin:auto;padding:94px 0 110px;color:#fff}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#ffd0e3;font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
    .eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 6px rgba(255,155,92,.17)}
    .hero h1{max-width:650px;margin:20px 0 16px;font-size:clamp(38px,5vw,70px);line-height:1.1;letter-spacing:0;font-weight:900}
    .hero h1 em{font-style:normal;color:#ff9bba}
    .hero-lead{max-width:650px;color:#f1dce9;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:13px;margin-top:30px;flex-wrap:wrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 22px;border-radius:999px;font-weight:800;font-size:14px;transition:.22s;min-height:48px}
    .btn-primary{background:linear-gradient(110deg,var(--pink),var(--violet));color:#fff;box-shadow:0 10px 25px rgba(238,77,145,.26)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(238,77,145,.36)}
    .btn-light{background:#fff;color:var(--ink)}
    .btn-light:hover{background:#ffe9f2;transform:translateY(-2px)}
    .btn-outline{background:transparent;border:1px solid var(--line);color:var(--ink)}
    .btn-outline:hover{border-color:var(--pink);color:var(--pink-deep)}
    .hero-strip{position:absolute;bottom:0;left:0;right:0;background:rgba(20,11,27,.74);border-top:1px solid rgba(255,255,255,.16)}
    .hero-strip-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0;color:#fff}
    .countdown{display:flex;gap:12px;align-items:center;font-size:13px;color:#f7cede}
    .countdown strong{font-size:19px;color:#fff}
    .hero-points{display:flex;gap:25px;font-size:13px;color:#e9d4e1}
    .hero-points span:before{content:"✓";color:#ff9bba;margin-right:7px;font-weight:900}
    section{padding:88px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:32px}
    .section-kicker{color:var(--pink-deep);font-size:13px;font-weight:900;letter-spacing:.12em}
    .section-title{font-size:clamp(27px,3.2vw,40px);line-height:1.2;margin-top:6px}
    .section-desc{max-width:600px;color:var(--muted);font-size:15px;margin-top:10px}
    .text-link{color:var(--pink-deep);font-weight:800;font-size:14px;white-space:nowrap}
    .text-link:hover{text-decoration:underline}
    .pain-section{background:#fff}
    .pain-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:55px;align-items:center}
    .pain-copy p{color:var(--muted);font-size:16px;margin-top:17px;max-width:580px}
    .signal-list{display:grid;grid-template-columns:repeat(2,1fr);gap:13px;margin-top:28px}
    .signal{padding:17px;background:var(--soft);border:1px solid var(--line);border-radius:var(--radius-sm)}
    .signal b{display:block;font-size:17px}.signal span{font-size:13px;color:var(--muted)}
    .quote-panel{padding:33px;border-radius:30px;background:linear-gradient(135deg,#ffe7f1,#f0eaff);position:relative;overflow:hidden}
    .quote-panel:after{content:"30";position:absolute;right:22px;bottom:-30px;font-size:150px;font-weight:900;color:rgba(255,255,255,.55)}
    .quote-panel h3{font-size:27px;position:relative;z-index:1}
    .quote-panel p{position:relative;z-index:1;margin-top:12px;color:#6c536a;font-size:14px}
    .solution-section{background:var(--soft)}
    .solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .benefit{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px;transition:.25s}
    .benefit:hover{transform:translateY(-5px);box-shadow:var(--shadow-sm)}
    .benefit-icon{width:45px;height:45px;border-radius:15px;display:grid;place-items:center;background:#ffe2ed;color:var(--pink-deep);font-size:21px;margin-bottom:19px}
    .benefit:nth-child(2) .benefit-icon{background:#e9e3ff;color:var(--violet)}
    .benefit:nth-child(3) .benefit-icon{background:#fff0d9;color:#d67c28}
    .benefit h3{font-size:19px}.benefit p{color:var(--muted);font-size:14px;margin-top:8px}
    .showcase{background:#fff}
    .showcase-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:22px}
    .feature-image{min-height:390px;border-radius:var(--radius);overflow:hidden;position:relative;background:#21172b}
    .feature-image img{height:100%;opacity:.88}
    .feature-overlay{position:absolute;inset:auto 0 0;padding:28px;color:#fff;background:linear-gradient(transparent,rgba(24,11,29,.88))}
    .feature-overlay h3{font-size:25px}.feature-overlay p{font-size:13px;color:#efdce8;margin-top:5px}
    .scene-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .scene{border:1px solid var(--line);border-radius:var(--radius-sm);padding:21px;background:#fff}
    .scene strong{font-size:16px;display:block}.scene p{font-size:13px;color:var(--muted);margin-top:7px}
    .latest{background:#faf5fa}
    .content-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .content-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.25s}
    .content-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-sm)}
    .cover{height:225px;position:relative;overflow:hidden;background:#ddd}
    .cover img{height:100%;transition:.35s}.content-card:hover .cover img{transform:scale(1.05)}
    .badge{position:absolute;top:12px;left:12px;padding:4px 9px;border-radius:999px;background:#fff;color:var(--pink-deep);font-size:11px;font-weight:900;box-shadow:0 4px 10px rgba(0,0,0,.1)}
    .badge.dark{background:var(--ink);color:#fff}
    .card-body{padding:15px 16px 17px}.card-body h3{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .meta{display:flex;align-items:center;justify-content:space-between;margin-top:7px;color:var(--muted);font-size:12px}.rating{color:#d88622;font-weight:800}
    .popular{background:#fff}
    .popular-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .popular-card{min-height:205px;border-radius:20px;padding:24px;color:#fff;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden;background:#3c2749}
    .popular-card:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(20,10,25,.84),rgba(20,10,25,.08)),var(--bg) center/cover}
    .popular-card>*{position:relative}.popular-card h3{font-size:20px}.popular-card p{font-size:13px;color:#e8d6e3;margin-top:4px}
    .categories{background:var(--soft)}
    .category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
    .category{padding:22px 18px;border-radius:18px;background:#fff;border:1px solid var(--line);transition:.2s}
    .category:hover{border-color:#e8a0bf;box-shadow:var(--shadow-sm)}.category h3{font-size:17px}.category p{font-size:13px;color:var(--muted);margin-top:7px}
    .ranking{background:#25192d;color:#fff}.ranking .section-desc{color:#cdbbc9}.ranking .section-kicker{color:#ff9bbb}
    .rank-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 30px}
    .rank-item{display:flex;align-items:center;gap:17px;padding:17px 0;border-bottom:1px solid rgba(255,255,255,.12)}
    .rank-no{width:29px;font-size:22px;font-weight:900;color:#ff9bbb}.rank-item:nth-child(-n+3) .rank-no{color:var(--orange)}
    .rank-info{flex:1}.rank-info strong{display:block;font-size:15px}.rank-info span{font-size:12px;color:#bca9b9}
    .heat{font-size:12px;color:#f6cbdc;text-align:right}.heat b{display:block;color:#fff;font-size:14px}
    .trust{background:#fff}
    .trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.trust-card{padding:24px;border:1px solid var(--line);border-radius:18px}.trust-card b{font-size:25px;color:var(--pink-deep);display:block}.trust-card span{display:block;color:var(--muted);font-size:13px;margin-top:5px}
    .news{background:#faf5fa}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.news-card{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:17px;padding:12px}.news-card img{width:92px;height:82px;border-radius:11px;flex:none}.news-card h3{font-size:15px;line-height:1.45}.news-card time{display:block;margin-top:8px;color:var(--muted);font-size:12px}
    .compare{background:#fff}.compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:20px}.compare table{width:100%;border-collapse:collapse;min-width:650px}.compare th,.compare td{text-align:left;padding:17px 20px;border-bottom:1px solid var(--line);font-size:14px}.compare th{background:#fbf1f8;color:var(--pink-deep)}.compare tr:last-child td{border-bottom:0}.yes{color:var(--green);font-weight:900}.no{color:#aaa}
    .faq{background:var(--soft)}.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 22px}.faq-item h3{font-size:16px}.faq-item p{font-size:14px;color:var(--muted);margin-top:8px}
    .conversion{padding:70px 0;background:linear-gradient(110deg,#6f4cdb,#ee4d91);color:#fff}.conversion-wrap{display:flex;align-items:center;justify-content:space-between;gap:30px}.conversion h2{font-size:clamp(28px,4vw,45px);line-height:1.2}.conversion p{color:#f8dce9;margin-top:10px;max-width:650px}.conversion form{display:flex;gap:9px;flex-wrap:wrap}.conversion input{height:49px;border:0;border-radius:999px;padding:0 18px;min-width:220px;color:var(--ink)}.conversion .btn{background:var(--ink);color:#fff}
    footer{background:#1b1320;color:#bcaab9;padding:55px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px;padding-bottom:35px;border-bottom:1px solid rgba(255,255,255,.1)}.footer-brand{color:#fff;font-size:18px;font-weight:800}.footer-grid h3{font-size:14px;color:#fff;margin-bottom:12px}.footer-grid a{display:block;font-size:13px;margin:7px 0}.footer-grid a:hover{color:#ff9bbb}.footer-note{font-size:12px;margin-top:20px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    .age-gate{position:fixed;inset:0;background:rgba(25,14,31,.75);backdrop-filter:blur(8px);z-index:50;display:grid;place-items:center;padding:20px}.age-box{max-width:430px;background:#fff;border-radius:25px;padding:34px;text-align:center;box-shadow:var(--shadow)}.age-box .brand-mark{margin:0 auto 18px}.age-box h2{font-size:26px}.age-box p{color:var(--muted);font-size:14px;margin:11px 0 22px}.age-actions{display:flex;gap:10px;justify-content:center}.age-actions .btn{min-width:125px}
    @media(max-width:1024px){.nav{gap:15px}.content-grid{grid-template-columns:repeat(3,1fr)}.category-grid{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}}
    @media(max-width:768px){.container,.hero-content{width:min(100% - 30px,var(--max))}.nav-wrap{height:68px}.menu-toggle{display:block}.nav{display:none;position:absolute;top:68px;left:0;right:0;padding:9px 20px 16px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch;gap:0}.nav.open{display:flex}.nav a{padding:10px 0}.nav a.active:after{display:none}.nav-cta{margin-top:5px;text-align:center}.hero{min-height:650px}.hero-content{padding:78px 0 120px}.hero-strip-inner{align-items:flex-start;flex-direction:column;gap:7px}.hero-points{gap:12px;flex-wrap:wrap}.pain-grid,.showcase-layout{grid-template-columns:1fr;gap:28px}.solution-grid{grid-template-columns:1fr}.content-grid{grid-template-columns:repeat(2,1fr)}.popular-grid{grid-template-columns:repeat(2,1fr)}.trust-grid{grid-template-columns:repeat(2,1fr)}.news-grid{grid-template-columns:1fr 1fr}.conversion-wrap{align-items:flex-start;flex-direction:column}}
    @media(max-width:520px){section{padding:65px 0}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:14px}.hero h1{font-size:39px}.hero-lead{font-size:15px}.hero-actions{display:grid}.hero-actions .btn{width:100%}.signal-list,.scene-list,.rank-list,.faq-grid{grid-template-columns:1fr}.content-grid,.popular-grid,.category-grid,.news-grid{grid-template-columns:1fr 1fr;gap:11px}.cover{height:180px}.card-body{padding:12px}.card-body h3{font-size:14px}.popular-card{min-height:170px;padding:17px}.category{padding:17px 13px}.category h3{font-size:15px}.category p{font-size:12px}.trust-grid{gap:10px}.trust-card{padding:16px}.trust-card b{font-size:21px}.news-card{display:block}.news-card img{width:100%;height:125px;margin-bottom:9px}.footer-grid{grid-template-columns:1fr 1fr;gap:24px}.footer-grid>div:first-child{grid-column:1/-1}.age-box{padding:28px 21px}}