/* roulang page: index */
:root{
  --ink:#1e1d24;
  --muted:#77727f;
  --paper:#fbf8f6;
  --panel:#fff;
  --soft:#f3eceb;
  --line:#e9dfdc;
  --rose:#bd596d;
  --rose-dark:#8e354b;
  --gold:#b18755;
  --night:#29252d;
  --shadow:0 16px 42px rgba(54,35,40,.09);
  --radius:18px;
  --max:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input{font:inherit}
button{border:0;cursor:pointer}
.container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(251,248,246,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(233,223,220,.8)}
.navbar{height:76px;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.brand-mark{width:38px;height:38px;display:grid;place-items:center;background:var(--rose);color:#fff;border-radius:11px;font-size:18px;box-shadow:0 8px 18px rgba(189,89,109,.24)}
.brand-name{font-size:16px}
.nav-links{display:flex;align-items:center;gap:24px;margin-left:auto}
.nav-links a{font-size:14px;color:#625b63;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:var(--rose-dark)}
.nav-action{padding:10px 17px;border:1px solid var(--rose);color:var(--rose-dark)!important;border-radius:9px}
.menu-toggle{display:none;background:transparent;color:var(--ink);font-size:24px}
.hero{padding:74px 0 66px;background:linear-gradient(120deg,#fbf8f6 0%,#f7eeed 52%,#f2e7e4 100%);border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--rose-dark);font-size:13px;font-weight:700;margin-bottom:18px}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--rose)}
h1{font-size:clamp(36px,5vw,64px);line-height:1.15;letter-spacing:0;font-weight:800;max-width:680px}
h1 em{font-style:normal;color:var(--rose-dark)}
.hero-copy{font-size:17px;color:#655e65;max-width:640px;margin:24px 0 27px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:10px;font-weight:700;transition:.25s;min-height:48px}
.btn-primary{background:var(--rose);color:#fff;box-shadow:0 9px 20px rgba(189,89,109,.2)}
.btn-primary:hover{background:var(--rose-dark);transform:translateY(-2px)}
.btn-outline{border:1px solid #cdb4b2;color:var(--rose-dark);background:rgba(255,255,255,.35)}
.btn-outline:hover{background:#fff;border-color:var(--rose)}
.hero-visual{position:relative;min-height:340px}
.hero-image{height:390px;border-radius:24px;box-shadow:var(--shadow);filter:saturate(.8)}
.hero-note{position:absolute;right:-18px;bottom:22px;background:#fff;padding:19px 20px;border-radius:14px;box-shadow:var(--shadow);width:210px}
.hero-note strong{display:block;font-size:25px;color:var(--rose-dark);line-height:1.2}
.hero-note span{font-size:13px;color:var(--muted)}
.section{padding:82px 0}
.section-soft{background:var(--soft)}
.section-dark{background:var(--night);color:#fff}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:31px}
.section-kicker{font-size:12px;color:var(--rose-dark);font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.section-dark .section-kicker{color:#e5ad9e}
h2{font-size:clamp(27px,3vw,40px);line-height:1.25;margin-top:7px;letter-spacing:0}
.section-intro{max-width:620px;color:var(--muted);font-size:15px}
.section-dark .section-intro{color:#c8bec4}
.problem-layout{display:grid;grid-template-columns:1fr 1.25fr;gap:56px;align-items:start}
.problem-layout h2{max-width:390px}
.problem-list{display:grid;gap:14px}
.problem-item{display:grid;grid-template-columns:44px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.problem-number{font-size:20px;font-weight:800;color:var(--rose)}
.problem-item h3{font-size:17px;margin-bottom:4px}
.problem-item p{color:var(--muted);font-size:14px}
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.info-card{background:var(--panel);border:1px solid var(--line);padding:25px;border-radius:var(--radius);transition:.25s}
.info-card:hover,.media-card:hover,.latest-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.card-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:#f5e5e6;color:var(--rose-dark);font-size:19px;margin-bottom:18px}
.info-card h3{font-size:18px;margin-bottom:8px}
.info-card p{color:var(--muted);font-size:14px}
.scene-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
.scene-large{min-height:330px;position:relative;border-radius:var(--radius);overflow:hidden;background:#221e24}
.scene-large img{height:100%;position:absolute;inset:0;opacity:.7}
.scene-caption{position:absolute;left:28px;right:28px;bottom:24px;color:#fff}
.scene-caption h3{font-size:25px;margin-bottom:7px}
.scene-caption p{color:#eee;max-width:520px;font-size:14px}
.scene-side{display:grid;gap:22px}
.scene-small{display:flex;min-height:154px;overflow:hidden;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
.scene-small img{width:42%;height:auto}
.scene-small div{padding:20px}
.scene-small h3{font-size:17px;margin-bottom:5px}
.scene-small p{font-size:13px;color:var(--muted)}
.latest-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.media-card{background:#fff;border:1px solid var(--line);border-radius:15px;overflow:hidden;transition:.25s}
.media-cover{height:215px;position:relative}
.media-cover img{height:100%}
.badge{position:absolute;top:12px;left:12px;background:rgba(41,37,45,.84);color:#fff;font-size:11px;padding:4px 8px;border-radius:5px}
.media-body{padding:15px}
.media-body h3{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-top:8px}
.rating{color:var(--gold);font-weight:700}
.featured-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.featured-grid .media-cover{height:250px}
.category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.category{padding:23px 19px;border:1px solid var(--line);border-radius:14px;background:#fff;min-height:165px}
.category b{display:block;font-size:17px;margin-bottom:9px}
.category p{font-size:13px;color:var(--muted)}
.rank-layout{display:grid;grid-template-columns:1fr .8fr;gap:50px;align-items:start}
.rank-list{display:grid;gap:0}
.rank-row{display:grid;grid-template-columns:42px 1fr 78px 52px;align-items:center;gap:13px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.rank-no{font-size:21px;font-weight:800;color:#e5ad9e}
.rank-title{font-weight:700}
.rank-tag{font-size:11px;padding:3px 7px;border:1px solid #71646e;border-radius:5px;color:#d9c7ca;justify-self:start}
.rank-hot{color:#e8b17c;font-size:13px}
.rank-score{font-weight:700;color:#fff;text-align:right}
.metric-panel{border-left:1px solid rgba(255,255,255,.18);padding-left:38px}
.metric-panel strong{display:block;font-size:55px;color:#e5ad9e;line-height:1.15}
.metric-panel p{color:#c8bec4;max-width:300px;margin:12px 0 22px}
.metric-line{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:14px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-item{display:grid;grid-template-columns:105px 1fr;gap:15px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:13px}
.news-item img{height:88px;border-radius:9px}
.news-item h3{font-size:15px;line-height:1.45;margin:3px 0 6px}
.news-item time{font-size:12px;color:var(--muted)}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.plan{background:#fff;border:1px solid var(--line);border-radius:16px;padding:27px;position:relative}
.plan.featured-plan{border:2px solid var(--rose);box-shadow:var(--shadow)}
.plan-label{position:absolute;right:17px;top:17px;color:var(--rose-dark);font-size:11px;font-weight:700}
.plan h3{font-size:20px}
.plan-price{font-size:31px;font-weight:800;margin:15px 0;color:var(--rose-dark)}
.plan-price small{font-size:13px;color:var(--muted);font-weight:400}
.plan ul{list-style:none;border-top:1px solid var(--line);padding-top:13px}
.plan li{font-size:14px;color:var(--muted);padding:6px 0}
.plan li:before{content:"✓";color:var(--rose);font-weight:800;margin-right:8px}
.trust-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:25px;text-align:center}
.trust-strip strong{display:block;font-size:27px;color:var(--rose-dark)}
.trust-strip span{font-size:13px;color:var(--muted)}
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.faq{background:#fff;border:1px solid var(--line);border-radius:13px;padding:20px 22px}
.faq h3{font-size:16px;margin-bottom:8px}
.faq p{font-size:14px;color:var(--muted)}
.cta-section{padding:82px 0;background:#eadbd8}
.cta-box{display:grid;grid-template-columns:1fr .8fr;gap:50px;align-items:center}
.cta-box h2{max-width:550px}
.cta-box p{color:#6c6065;margin:15px 0 22px;max-width:580px}
.form-box{background:#fff;padding:25px;border-radius:16px;box-shadow:var(--shadow)}
.form-box label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px}
.form-box input{width:100%;border:1px solid var(--line);border-radius:8px;padding:12px 13px;outline:0;margin-bottom:13px;background:#fff}
.form-box input:focus{border-color:var(--rose);box-shadow:0 0 0 3px rgba(189,89,109,.12)}
.form-box .btn{width:100%}
.site-footer{background:#29252d;color:#d8ced2;padding:50px 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,.14)}
.footer-brand{color:#fff;margin-bottom:12px}
.footer-desc{color:#9d9299;font-size:13px;max-width:300px}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:13px}
.footer-col a,.footer-col p{display:block;color:#9d9299;font-size:13px;margin:6px 0}
.footer-col a:hover{color:#e5ad9e}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:19px;color:#8f858c;font-size:12px}
.age-modal{position:fixed;inset:0;background:rgba(25,20,25,.76);z-index:50;display:grid;place-items:center;padding:20px}
.age-dialog{width:min(440px,100%);background:#fff;border-radius:18px;padding:32px;text-align:center;box-shadow:0 20px 80px rgba(0,0,0,.3)}
.age-dialog h2{font-size:27px}
.age-dialog p{font-size:14px;color:var(--muted);margin:13px 0 22px}
.age-dialog .btn{width:100%}
.age-dialog .leave{display:block;color:var(--muted);font-size:13px;margin-top:13px}
@media(max-width:1024px){
  .navbar{gap:18px}.nav-links{gap:14px}
  .hero-grid{gap:35px}.latest-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{width:min(var(--max),calc(100% - 28px))}
  .navbar{height:68px}.brand-name{font-size:14px}.menu-toggle{display:block;margin-left:auto}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:16px 20px;flex-direction:column;align-items:stretch;gap:0}
  .nav-links.open{display:flex}.nav-links a{padding:11px 0;border-bottom:1px solid var(--line)}
  .nav-action{text-align:center;margin-top:8px}
  .hero{padding:53px 0 45px}.hero-grid,.problem-layout,.scene-grid,.rank-layout,.cta-box{grid-template-columns:1fr}
  .hero-visual{min-height:270px}.hero-image{height:300px}.hero-note{right:10px}
  .section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:13px}
  .solution-grid,.featured-grid,.plans{grid-template-columns:1fr 1fr}
  .latest-grid{grid-template-columns:repeat(2,1fr)}
  .category-grid{grid-template-columns:repeat(2,1fr)}
  .metric-panel{border-left:0;border-top:1px solid rgba(255,255,255,.18);padding:28px 0 0}
  .news-grid{grid-template-columns:1fr 1fr}.trust-strip{grid-template-columns:repeat(2,1fr);gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
  h1{font-size:37px}.hero-copy{font-size:15px}
  .hero-actions .btn{width:100%}.hero-note{padding:13px 15px;width:180px}
  .solution-grid,.featured-grid,.plans,.news-grid,.faq-grid{grid-template-columns:1fr}
  .latest-grid{gap:11px}.media-cover{height:170px}.featured-grid .media-cover{height:220px}
  .category-grid{grid-template-columns:1fr 1fr;gap:10px}.category{min-height:145px;padding:18px 14px}
  .rank-row{grid-template-columns:31px 1fr 55px 38px;gap:7px}.rank-tag{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}.footer-grid>div:first-child{grid-column:1/-1}
  .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}
}