/* roulang page: index */
:root{
  --coral:#ef6e5c;--coral-dark:#c9524b;--cream:#fffaf3;--paper:#fffdf9;
  --apricot:#fff0e2;--rose:#fae2dc;--berry:#59363b;--purple:#75637e;
  --ink:#2d2425;--muted:#77696a;--line:#eadbd4;--white:#fff;
  --radius:18px;--shadow:0 14px 35px rgba(92,56,49,.08);--container:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:var(--cream);line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.section{padding:92px 0;border-top:1px solid rgba(234,219,212,.65)}
.section.alt{background:var(--apricot)}
.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:34px}
.eyebrow{display:inline-flex;color:var(--coral-dark);font-size:12px;font-weight:800;letter-spacing:.13em;margin-bottom:10px}
.section h2{font-size:clamp(25px,3vw,38px);line-height:1.25;color:var(--berry);letter-spacing:-.03em}
.section-intro{max-width:610px;color:var(--muted);font-size:15px}
.header{height:76px;background:rgba(255,253,249,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.navbar{height:76px;display:flex;align-items:center;gap:30px}
.brand{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:800;white-space:nowrap;color:var(--berry)}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--coral);position:relative;box-shadow:inset 0 -5px 0 rgba(124,45,42,.13)}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;background:#fff3e8;border-radius:3px}
.logo-mark:before{width:16px;height:5px;left:9px;top:10px;transform:rotate(35deg)}
.logo-mark:after{width:12px;height:5px;left:10px;top:20px;transform:rotate(-35deg)}
.nav{display:flex;align-items:center;gap:7px;margin-left:auto}
.nav a{padding:9px 12px;border-radius:9px;color:var(--muted);font-size:14px;transition:.2s}
.nav a:hover,.nav a.active{color:var(--coral-dark);background:var(--rose)}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:10px;padding:12px 20px;font-weight:700;transition:.2s;white-space:nowrap}
.nav-cta,.btn-primary{color:#fff;background:var(--coral);box-shadow:0 8px 18px rgba(239,110,92,.22)}
.nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px)}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;padding:8px;color:var(--berry)}
.hero{padding:72px 0 56px;background:linear-gradient(125deg,#fffaf3 0%,#fff7ed 60%,#fbe4df 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:54px;align-items:center}
.hero-copy{padding:20px 0 20px 28px}
.hero h1{font-size:clamp(36px,5vw,68px);line-height:1.12;letter-spacing:-.06em;color:var(--berry);max-width:560px}
.hero h1 em{color:var(--coral);font-style:normal}
.hero-sub{font-size:20px;color:var(--purple);margin:21px 0 12px;font-weight:700}
.hero-desc{max-width:590px;color:var(--muted);font-size:16px;line-height:1.9}
.hero-actions{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.btn-secondary{color:var(--berry);background:#fff;border:1px solid var(--line)}
.btn-secondary:hover{border-color:var(--coral);color:var(--coral-dark);transform:translateY(-2px)}
.hero-panel{min-height:430px;background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:var(--shadow);transform:rotate(1.5deg)}
.panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px}
.panel-top strong{font-size:18px;color:var(--berry)}
.status{font-size:12px;padding:5px 9px;border-radius:6px;background:#e9f5e8;color:#447647;font-weight:700}
.preview-main{height:190px;border-radius:16px;margin:22px 0;background:linear-gradient(135deg,#7d4c55,#e98b6f 55%,#ffd5a4);position:relative;overflow:hidden}
.preview-main:after{content:"";position:absolute;inset:45% 0 0;background:linear-gradient(transparent,rgba(58,28,33,.7))}
.preview-label{position:absolute;z-index:1;bottom:16px;left:18px;color:#fff;font-size:20px;font-weight:800}
.preview-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.meta-box{background:var(--apricot);border-radius:12px;padding:13px}
.meta-box small{display:block;color:var(--muted);font-size:11px}.meta-box b{font-size:19px;color:var(--berry)}
.hero-bottom{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:45px}
.hero-note{border-left:3px solid var(--coral);padding-left:13px;color:var(--muted);font-size:13px}.hero-note b{display:block;color:var(--berry);font-size:17px}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.metric{padding:25px;background:#fffaf5;border:1px solid var(--line);border-radius:15px;position:relative}
.metric:before{content:"";position:absolute;left:0;top:18px;width:4px;height:32px;background:var(--coral);border-radius:0 4px 4px 0}
.metric small{color:var(--muted);display:block}.metric strong{font-size:31px;color:var(--berry);display:block;line-height:1.35}.metric span{font-size:12px;color:var(--muted)}
.content-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.content-card{background:var(--paper);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.25s;box-shadow:0 5px 15px rgba(92,56,49,.03)}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#e4b4aa}
.thumb{height:142px;background:linear-gradient(135deg,#f3c3a3,#8b5660);position:relative;overflow:hidden}
.thumb:before{content:"";position:absolute;width:110px;height:110px;border:1px solid rgba(255,255,255,.45);border-radius:50%;right:-15px;top:-28px}
.thumb.t2{background:linear-gradient(135deg,#c7a2aa,#6c536e)}.thumb.t3{background:linear-gradient(135deg,#f5c98e,#d36960)}
.thumb.t4{background:linear-gradient(135deg,#a9c2b0,#e9a377)}.thumb.t5{background:linear-gradient(135deg,#e1a9bd,#765c79)}.thumb.t6{background:linear-gradient(135deg,#f2bb9b,#9c6c55)}
.thumb.t7{background:linear-gradient(135deg,#b7c9d1,#d57b73)}.thumb.t8{background:linear-gradient(135deg,#e9d19d,#9b6571)}.thumb.t9{background:linear-gradient(135deg,#b4a5c8,#e49376)}.thumb.t10{background:linear-gradient(135deg,#f2d39b,#9c7670)}.thumb.t11{background:linear-gradient(135deg,#d9a7a1,#71566b)}.thumb.t12{background:linear-gradient(135deg,#b7c5a5,#df8b73)}
.thumb-text{position:absolute;bottom:14px;left:15px;color:#fff;font-size:18px;font-weight:800;text-shadow:0 2px 8px #633b3b}
.badge{position:absolute;left:12px;top:12px;padding:4px 8px;border-radius:5px;background:#fff;color:var(--berry);font-size:11px;font-weight:800}
.card-body{padding:16px}.card-title{font-size:15px;font-weight:800;color:var(--berry);margin-bottom:6px}.card-info{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.score{color:#b55a48;font-weight:800}
.popular-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}
.feature-pop{min-height:318px;border-radius:20px;padding:25px;color:#fff;background:linear-gradient(115deg,rgba(83,43,51,.94),rgba(166,79,67,.72)),linear-gradient(135deg,#e4a08b,#76506a);display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden}
.feature-pop:before{content:"热门推荐";position:absolute;right:24px;top:22px;border:1px solid rgba(255,255,255,.5);padding:5px 9px;border-radius:5px;font-size:11px}
.feature-pop h3{font-size:28px;margin:8px 0}.feature-pop p{max-width:520px;color:#fae9e2}.hot-list{display:grid;gap:12px}.hot-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:17px;display:grid;grid-template-columns:45px 1fr auto;gap:13px;align-items:center}.hot-item:hover{border-color:var(--coral)}.hot-no{font-size:24px;font-weight:900;color:var(--coral)}.hot-item strong{color:var(--berry)}.hot-item small{display:block;color:var(--muted);font-size:12px}
.category-layout{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:16px}.category{min-height:175px;padding:23px;border-radius:16px;border:1px solid var(--line);background:#fff;display:flex;flex-direction:column;justify-content:space-between}.category.big{grid-row:span 2;background:var(--berry);color:#fff}.category.big h3{font-size:26px}.category h3{color:var(--berry);font-size:19px}.category.big h3,.category.big p{color:#fff}.category p{color:var(--muted);font-size:13px}.category-tag{font-size:12px;color:var(--coral-dark);font-weight:800}
.rank-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px}.rank-list{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}.rank-row{display:grid;grid-template-columns:42px 1fr 72px 58px;align-items:center;gap:10px;padding:13px 18px;border-bottom:1px solid #f1e7e1;transition:.2s}.rank-row:last-child{border:0}.rank-row:hover{background:#fff4ec}.rank-row:nth-child(-n+3) .rank-num{background:var(--coral);color:#fff}.rank-num{width:28px;height:28px;border-radius:7px;background:#f6e4dc;color:var(--berry);display:grid;place-items:center;font-weight:800}.rank-row strong{font-size:14px;color:var(--berry)}.rank-row small{display:block;color:var(--muted);font-size:11px}.bar{height:5px;background:#f0ddd7;border-radius:4px;overflow:hidden}.bar i{display:block;height:100%;background:var(--coral);border-radius:4px}.rating{font-size:12px;color:var(--coral-dark);font-weight:800}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid #edc9be;margin-top:12px}.milestone{position:relative;padding:29px 20px 10px;border-right:1px solid var(--line)}.milestone:last-child{border:0}.milestone:before{content:"";position:absolute;top:-8px;left:20px;width:14px;height:14px;border-radius:50%;background:var(--coral);border:3px solid var(--cream)}.milestone b{color:var(--coral-dark);font-size:13px}.milestone h3{color:var(--berry);font-size:18px;margin:8px 0}.milestone p{font-size:13px;color:var(--muted)}
.news-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}.lead-news{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}.news-image{height:220px;background:linear-gradient(135deg,#6f4857,#ef9872);padding:20px;display:flex;align-items:end;color:#fff;font-size:25px;font-weight:800}.lead-news .news-text{padding:22px}.news-text p{color:var(--muted);font-size:13px;margin:7px 0}.news-date{font-size:12px;color:var(--coral-dark);font-weight:700}.news-list{display:grid;gap:10px}.news-item{display:grid;grid-template-columns:92px 1fr;gap:15px;align-items:center;padding:10px;background:#fff;border-bottom:1px solid var(--line)}.news-mini{height:70px;border-radius:9px;background:linear-gradient(135deg,#e7b49d,#886478)}.news-item h3{font-size:14px;color:var(--berry);line-height:1.45}.news-item time{font-size:11px;color:var(--muted)}
.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:#fff;border-radius:17px;overflow:hidden}.guarantee{padding:26px;border-right:1px solid var(--line)}.guarantee:last-child{border:0}.icon{width:38px;height:38px;display:grid;place-items:center;border-radius:10px;background:var(--rose);color:var(--coral-dark);font-weight:900;font-size:19px}.guarantee h3{font-size:16px;color:var(--berry);margin:15px 0 5px}.guarantee p{font-size:13px;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step{padding:25px 22px;background:#fff;border:1px solid var(--line);border-radius:16px;position:relative}.step:not(:last-child):after{content:"→";position:absolute;right:-17px;top:42%;color:var(--coral);font-size:22px;z-index:2}.step-no{color:var(--coral);font-size:30px;font-weight:900;line-height:1}.step h3{font-size:17px;color:var(--berry);margin:12px 0 5px}.step p{font-size:13px;color:var(--muted)}
.faq-wrap{max-width:850px;margin:auto}.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden}.faq-question{width:100%;background:none;border:0;text-align:left;padding:20px 23px;color:var(--berry);font-weight:800;display:flex;justify-content:space-between;align-items:center}.faq-question span{font-size:23px;color:var(--coral);transition:.25s}.faq-answer{max-height:0;overflow:hidden;padding:0 23px;color:var(--muted);transition:max-height .25s,padding .25s}.faq-item.open .faq-answer{max-height:180px;padding:0 23px 20px}.faq-item.open .faq-question span{transform:rotate(45deg)}
.cta-section{background:var(--berry);color:#fff}.cta-section h2{color:#fff}.cta-section .section-intro{color:#ead9d4}.form-box{margin-top:28px;background:#fff;border-radius:17px;padding:22px;display:grid;grid-template-columns:1fr 1fr 1.2fr auto;gap:12px;align-items:end}.field label{display:block;font-size:12px;color:var(--muted);font-weight:700;margin-bottom:5px}.field input,.field select{width:100%;height:45px;border:1px solid var(--line);border-radius:9px;padding:0 12px;color:var(--ink);background:#fff}.field input:focus,.field select:focus{outline:3px solid rgba(239,110,92,.18);border-color:var(--coral)}.form-box .btn{height:45px}.form-note{color:#9a7774;font-size:12px;margin-top:10px}.index-bar{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.index-bar a{padding:10px 15px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--berry);font-size:13px}.index-bar a:hover{border-color:var(--coral);color:var(--coral-dark)}
.footer{background:#342729;color:#e9deda;padding:58px 0 22px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}.footer h3{color:#fff;font-size:16px;margin-bottom:14px}.footer p,.footer a{font-size:13px;color:#c9b6b2}.footer a{display:block;margin:7px 0}.footer a:hover{color:#ff9d8b}.footer-brand{font-size:20px;color:#fff;font-weight:800;margin-bottom:10px}.copyright{border-top:1px solid rgba(255,255,255,.13);margin-top:38px;padding-top:18px;color:#a99290;font-size:12px;display:flex;justify-content:space-between}
.top-btn{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border:0;border-radius:10px;background:var(--coral);color:#fff;box-shadow:var(--shadow);z-index:10}
:focus-visible{outline:3px solid #f3a08f;outline-offset:3px}
@media(max-width:1100px){.nav{gap:0}.nav a{padding:8px}.content-grid{grid-template-columns:repeat(3,1fr)}.form-box{grid-template-columns:1fr 1fr}}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.hero-copy{padding-left:0}.hero-panel{transform:none}.metric-grid,.guarantee-grid{grid-template-columns:repeat(2,1fr)}.category-layout,.popular-layout,.news-layout,.rank-wrap{grid-template-columns:1fr}.timeline{grid-template-columns:repeat(2,1fr);border-top:0}.milestone{border-top:2px solid #edc9be}.steps{grid-template-columns:repeat(2,1fr)}.step:not(:last-child):after{display:none}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.header,.navbar{height:68px}.navbar{gap:12px}.brand{font-size:15px}.logo-mark{width:30px;height:30px}.nav{display:none;position:absolute;left:24px;right:24px;top:74px;background:#fff;border:1px solid var(--line);border-radius:13px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:11px}.nav-cta{display:none}.menu-toggle{display:block;margin-left:auto}.hero{padding:48px 0 42px}.hero h1{font-size:42px}.hero-sub{font-size:17px}.hero-bottom{grid-template-columns:1fr}.section{padding:65px 0}.container{width:min(100% - 32px,var(--container))}.section-head{display:block}.section-intro{margin-top:12px}.content-grid{grid-template-columns:repeat(2,1fr);gap:12px}.thumb{height:115px}.card-body{padding:12px}.card-title{font-size:13px}.category-layout{grid-template-columns:1fr 1fr}.category.big{grid-column:span 2;grid-row:auto}.timeline{grid-template-columns:1fr}.guarantee-grid{grid-template-columns:1fr}.guarantee{border-right:0;border-bottom:1px solid var(--line)}.steps{grid-template-columns:1fr}.form-box{grid-template-columns:1fr;padding:16px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block;line-height:2}.copyright span{display:block}}
@media(max-width:430px){.hero h1{font-size:36px}.content-grid{grid-template-columns:1fr 1fr}.preview-meta{gap:6px}.meta-box{padding:9px}.meta-box b{font-size:16px}.rank-row{grid-template-columns:34px 1fr 58px 45px;padding:12px 10px}.hot-item{grid-template-columns:36px 1fr auto}.footer-grid{grid-template-columns:1fr}.category-layout{grid-template-columns:1fr}.category.big{grid-column:auto}}