/* roulang page: index */
:root {
  --ink: #111214;
  --ink-light: #1C1D20;
  --tea: #A67C4E;
  --tea-dark: #8A5A2E;
  --tea-light: rgba(168,124,78,.12);
  --cream: #F5F1EA;
  --surface: #FFFFFF;
  --gold: #C8A064;
  --text: #262522;
  --text-secondary: #6E6A63;
  --border: #E8E2D8;
  --green: #3A7D5A;
  --red: #A34E4E;
  --serif: "Noto Serif SC","Source Han Serif SC","SimSun",serif;
  --sans: "Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --num: "Barlow Condensed","DIN Alternate","Oswald","Arial Narrow",sans-serif;
  --radius-lg: 16px;
  --radius-sm: 8px;
  --radius-pill: 100px;
  --shadow: 0 1px 2px rgba(17,18,20,.04),0 4px 12px rgba(17,18,20,.05);
  --shadow-hover: 0 4px 8px rgba(17,18,20,.05),0 16px 40px rgba(17,18,20,.12);
  --transition: .25s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--sans);background:var(--cream);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,select,textarea{font-family:inherit;font-size:1rem;}
ul,ol{list-style:none;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:clamp(4rem,8vw,7rem) 0;}
.section-head{margin-bottom:clamp(2rem,4vw,3rem);}
.section-tag{display:inline-flex;align-items:center;gap:8px;font-size:.75rem;font-weight:500;letter-spacing:2px;color:var(--tea-dark);background:var(--tea-light);padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:12px;text-transform:uppercase;}
.section-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--tea);}
.section-title{font-family:var(--serif);font-size:clamp(1.75rem,3.2vw,2.75rem);font-weight:800;line-height:1.15;color:var(--ink);letter-spacing:-.5px;}
.section-desc{font-size:clamp(.9375rem,1.2vw,1.0625rem);color:var(--text-secondary);margin-top:14px;max-width:640px;line-height:1.7;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:var(--radius-pill);font-size:.9375rem;font-weight:500;transition:var(--transition);letter-spacing:.3px;}
.btn-primary{background:var(--tea);color:var(--cream);}
.btn-primary:hover{background:var(--tea-dark);transform:translateY(-1px);box-shadow:0 6px 20px rgba(168,124,78,.25);}
.btn-primary:hover .arrow{margin-left:6px;}
.btn-outline{background:transparent;border:1px solid var(--tea);color:var(--tea-dark);}
.btn-outline:hover{background:var(--tea-light);}
.btn-lg{padding:14px 36px;font-size:1rem;}
.btn .arrow{transition:margin-left .25s ease;margin-left:2px;}
.btn:focus-visible{outline:3px solid rgba(168,124,78,.35);outline-offset:2px;}
/* 导航 */
.site-nav{position:fixed;top:0;left:0;right:0;z-index:1000;height:72px;background:rgba(17,18,20,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06);transition:var(--transition);}
.site-nav.scrolled{background:rgba(17,18,20,.98);box-shadow:0 4px 30px rgba(17,18,20,.2);}
.nav-inner{max-width:1200px;margin:0 auto;height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;}
.nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-logo-icon{width:36px;height:36px;background:var(--tea);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:700;flex-shrink:0;}
.nav-logo-text{font-family:var(--serif);font-size:1.15rem;font-weight:800;color:#fff;letter-spacing:1px;white-space:nowrap;}
.nav-logo-text span{color:var(--gold);}
.nav-channels{display:flex;align-items:center;gap:4px;margin:0 16px;}
.nav-channels a{padding:8px 16px;font-size:.875rem;font-weight:500;color:rgba(255,255,255,.75);border-radius:var(--radius-pill);transition:var(--transition);position:relative;}
.nav-channels a:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-channels a.active{color:#fff;background:rgba(168,124,78,.18);}
.nav-channels a.active::after{content:"";position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:20px;height:2px;background:var(--gold);border-radius:2px;}
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.nav-status{display:inline-flex;align-items:center;gap:6px;font-size:.75rem;color:rgba(255,255,255,.85);background:rgba(255,255,255,.08);padding:6px 14px;border-radius:var(--radius-pill);}
.nav-status .dot{width:8px;height:8px;border-radius:50%;background:var(--green);animation:pulse 2s infinite;}
.nav-status .count{font-family:var(--num);font-weight:700;color:var(--gold);font-size:1rem;}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(58,125,90,.4);}50%{opacity:.7;box-shadow:0 0 0 4px rgba(58,125,90,.1);}}
.nav-cta{background:var(--tea);color:var(--cream);padding:10px 22px;border-radius:var(--radius-pill);font-size:.875rem;font-weight:500;transition:var(--transition);display:inline-flex;align-items:center;gap:6px;}
.nav-cta:hover{background:var(--tea-dark);transform:translateY(-1px);box-shadow:0 4px 16px rgba(168,124,78,.3);}
.nav-burger{display:none;width:42px;height:42px;align-items:center;justify-content:center;flex-direction:column;gap:5px;border-radius:8px;transition:var(--transition);}
.nav-burger span{width:20px;height:2px;background:#fff;border-radius:2px;transition:var(--transition);}
.nav-burger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px);}
.nav-burger.active span:nth-child(2){opacity:0;}
.nav-burger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px);}
/* 移动导航 */
.mobile-nav{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(17,18,20,.98);z-index:999;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;opacity:0;visibility:hidden;transition:var(--transition);}
.mobile-nav.active{opacity:1;visibility:visible;}
.mobile-nav a{font-family:var(--serif);font-size:1.5rem;font-weight:700;color:rgba(255,255,255,.9);padding:8px 20px;transition:var(--transition);}
.mobile-nav a:hover{color:var(--gold);}
.mobile-nav a.active{color:var(--gold);border-bottom:2px solid var(--gold);}
/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:linear-gradient(135deg,rgba(17,18,20,.91) 0%,rgba(17,18,20,.72) 45%,rgba(17,18,20,.35) 100%),url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;padding:120px 0 80px;overflow:hidden;}
.hero-ribbon{position:absolute;top:72px;left:0;right:0;background:rgba(168,124,78,.92);color:#fff;text-align:center;padding:8px 16px;font-size:.812rem;font-weight:500;letter-spacing:1px;backdrop-filter:blur(4px);z-index:5;display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;}
.hero-ribbon .timer{font-family:var(--num);font-weight:700;font-size:1.05rem;letter-spacing:1px;background:rgba(17,18,20,.25);padding:2px 10px;border-radius:6px;margin-left:4px;}
.hero-content{max-width:760px;position:relative;z-index:2;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);padding:6px 18px;border-radius:var(--radius-pill);font-size:.812rem;color:rgba(255,255,255,.9);margin-bottom:24px;backdrop-filter:blur(4px);}
.hero-badge .badge-dot{width:8px;height:8px;border-radius:50%;background:var(--green);}
.hero h1{font-family:var(--serif);font-size:clamp(2.25rem,4.5vw,4rem);font-weight:900;line-height:1.12;color:#fff;letter-spacing:-1px;margin-bottom:20px;}
.hero h1 span{color:var(--gold);}
.hero-desc{font-size:clamp(.9375rem,1.3vw,1.125rem);color:rgba(255,255,255,.85);line-height:1.8;max-width:600px;margin-bottom:36px;}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:32px;}
.hero-data{display:flex;align-items:center;gap:24px;flex-wrap:wrap;}
.hero-data-item{display:flex;align-items:center;gap:8px;font-size:.812rem;color:rgba(255,255,255,.8);background:rgba(255,255,255,.08);padding:8px 18px;border-radius:var(--radius-pill);backdrop-filter:blur(4px);}
.hero-data-item .num{font-family:var(--num);font-size:1.25rem;font-weight:700;color:var(--gold);}
/* 指标看板 */
.metrics{padding:clamp(4rem,8vw,7rem) 0;}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 28px;position:relative;transition:var(--transition);overflow:hidden;}
.metric-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--tea),var(--gold));opacity:0;transition:var(--transition);}
.metric-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.metric-card:hover::before{opacity:1;}
.metric-card .trend{position:absolute;top:20px;right:20px;display:inline-flex;align-items:center;gap:4px;font-size:.75rem;color:var(--green);background:rgba(58,125,90,.08);padding:4px 10px;border-radius:var(--radius-pill);font-weight:500;}
.metric-card .trend.up{color:var(--green);}
.metric-card .trend.flat{color:var(--text-secondary);}
.metric-num{font-family:var(--num);font-size:clamp(2rem,4vw,3.5rem);font-weight:700;color:var(--ink);line-height:1;display:flex;align-items:baseline;gap:4px;margin-bottom:10px;}
.metric-num .unit{font-size:1rem;font-weight:600;color:var(--text-secondary);}
.metric-label{font-size:.875rem;color:var(--text-secondary);font-weight:500;}
.metric-sub{font-size:.75rem;color:var(--border);margin-top:4px;color:var(--text-secondary);opacity:.7;}
.metric-note{text-align:center;font-size:.75rem;color:var(--text-secondary);margin-top:24px;letter-spacing:.5px;}
/* 服务矩阵 */
.services{background:var(--surface);border-top:1px solid var(--border);padding:clamp(4rem,8vw,7rem) 0;}
.services-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.service-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--cream);border:1px solid var(--border);transition:var(--transition);min-height:280px;display:flex;flex-direction:column;}
.service-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.service-card-cover{position:relative;overflow:hidden;aspect-ratio:16/10;}
.service-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.service-card:hover .service-card-cover img{transform:scale(1.03);}
.service-card-cover::after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(to bottom,transparent 55%,rgba(17,18,20,.55) 100%);}
.service-card-body{padding:24px;flex:1;display:flex;flex-direction:column;position:relative;}
.service-tag{position:absolute;top:14px;left:14px;background:rgba(17,18,20,.78);color:#fff;font-size:.75rem;padding:5px 14px;border-radius:var(--radius-pill);z-index:2;backdrop-filter:blur(4px);letter-spacing:1px;}
.service-card-title{font-family:var(--serif);font-size:1.25rem;font-weight:700;color:var(--ink);margin-bottom:8px;line-height:1.3;}
.service-card-desc{font-size:.875rem;color:var(--text-secondary);line-height:1.6;margin-bottom:12px;flex:1;}
.service-card-feats{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.service-card-feats span{display:inline-flex;align-items:center;gap:4px;font-size:.75rem;color:var(--tea-dark);background:var(--tea-light);padding:3px 10px;border-radius:var(--radius-pill);}
.service-card-link{display:inline-flex;align-items:center;gap:4px;font-size:.875rem;color:var(--tea-dark);font-weight:500;transition:var(--transition);}
.service-card-link:hover{color:var(--tea);}
.service-card-link:hover .arrow{margin-left:6px;}
.service-card-link .arrow{transition:margin-left .25s ease;}
.service-lg{grid-column:span 7;}
.service-md{grid-column:span 5;}
.service-sm{grid-column:span 6;}
.service-wide{grid-column:span 12;background:var(--cream);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;transition:var(--transition);}
.service-wide:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.service-wide-left{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.service-wide-left .filter-label{font-size:.812rem;color:var(--text-secondary);white-space:nowrap;}
.service-wide-left .filter-chip{display:inline-flex;align-items:center;gap:4px;font-size:.812rem;color:var(--text);background:var(--surface);border:1px solid var(--border);padding:6px 14px;border-radius:var(--radius-pill);transition:var(--transition);}
.service-wide-left .filter-chip:hover{border-color:var(--tea);color:var(--tea-dark);background:var(--tea-light);}
/* 对比 */
.compare{background:var(--ink);color:#fff;padding:clamp(4rem,8vw,7rem) 0;position:relative;overflow:hidden;}
.compare::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:1px;height:100%;background:rgba(255,255,255,.06);}
.compare .section-title{color:#fff;}
.compare .section-desc{color:rgba(255,255,255,.6);}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-top:48px;}
.compare-col{padding:32px;border-radius:var(--radius-lg);transition:var(--transition);}
.compare-col.old{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);}
.compare-col.new{background:rgba(168,124,78,.1);border:1px solid rgba(168,124,78,.3);}
.compare-col-head{display:flex;align-items:center;gap:12px;margin-bottom:24px;}
.compare-col-head .icon{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:18px;}
.compare-col.old .icon{background:rgba(255,255,255,.08);}
.compare-col.new .icon{background:var(--tea);}
.compare-col-head h3{font-family:var(--serif);font-size:1.25rem;font-weight:700;}
.compare-col.old h3{color:rgba(255,255,255,.7);}
.compare-col.new h3{color:var(--gold);}
.compare-list li{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06);font-size:.875rem;color:rgba(255,255,255,.85);}
.compare-list li:last-child{border-bottom:none;}
.compare-list .icon{width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;flex-shrink:0;font-weight:700;}
.compare-list .icon.yes{background:rgba(58,125,90,.25);color:var(--green);}
.compare-list .icon.no{background:rgba(163,78,78,.25);color:var(--red);}
.compare-list .icon.mid{background:rgba(200,160,100,.2);color:var(--gold);}
.compare-list .dim{min-width:70px;font-weight:500;color:rgba(255,255,255,.6);}
.compare-list .val{color:#fff;}
/* 资讯 */
.news{padding:clamp(4rem,8vw,7rem) 0;}
.news-layout{display:grid;grid-template-columns:1fr 340px;gap:48px;}
.news-list li{border-bottom:1px solid var(--border);padding:18px 0;transition:var(--transition);}
.news-list li:first-child{padding-top:0;}
.news-list li:last-child{border-bottom:none;}
.news-item{display:flex;gap:16px;align-items:flex-start;}
.news-date{font-family:var(--num);font-size:.75rem;font-weight:700;color:var(--tea-dark);background:var(--tea-light);padding:4px 10px;border-radius:6px;white-space:nowrap;margin-top:4px;letter-spacing:.5px;}
.news-content h4{font-family:var(--serif);font-size:1.05rem;font-weight:700;color:var(--ink);margin-bottom:4px;transition:var(--transition);}
.news-content h4:hover{color:var(--tea-dark);}
.news-content p{font-size:.812rem;color:var(--text-secondary);line-height:1.6;}
.news-side .side-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;margin-bottom:24px;}
.news-side .side-card h4{font-family:var(--serif);font-size:1rem;font-weight:700;margin-bottom:16px;color:var(--ink);position:relative;padding-left:14px;}
.news-side .side-card h4::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:18px;background:var(--tea);border-radius:2px;}
.side-tags{display:flex;flex-wrap:wrap;gap:8px;}
.side-tags a{font-size:.75rem;color:var(--tea-dark);background:var(--tea-light);padding:5px 12px;border-radius:var(--radius-pill);transition:var(--transition);}
.side-tags a:hover{background:var(--tea);color:#fff;}
.side-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.side-stat{background:var(--cream);border-radius:var(--radius-sm);padding:16px;text-align:center;}
.side-stat .num{font-family:var(--num);font-size:1.5rem;font-weight:700;color:var(--ink);display:block;line-height:1;}
.side-stat .label{font-size:.75rem;color:var(--text-secondary);margin-top:6px;}
/* FAQ */
.faq{padding:clamp(4rem,8vw,7rem) 0;background:var(--surface);border-top:1px solid var(--border);}
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{background:var(--cream);border:1px solid var(--border);border-radius:var(--radius-lg);margin-bottom:14px;overflow:hidden;transition:var(--transition);}
.faq-item:hover{border-color:var(--tea);}
.faq-item.active{box-shadow:var(--shadow);border-color:var(--tea-light);}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;cursor:pointer;font-family:var(--serif);font-size:1.05rem;font-weight:700;color:var(--ink);transition:var(--transition);}
.faq-q:hover{color:var(--tea-dark);}
.faq-q .icon{width:28px;height:28px;border-radius:50%;background:var(--tea);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.875rem;font-weight:400;transition:var(--transition);flex-shrink:0;}
.faq-item.active .faq-q .icon{transform:rotate(45deg);background:var(--tea-dark);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,opacity .3s ease;opacity:0;}
.faq-item.active .faq-a{max-height:500px;opacity:1;}
.faq-a-inner{padding:0 24px 20px;font-size:.875rem;color:var(--text-secondary);line-height:1.7;border-left:3px solid var(--tea);margin:0 24px;padding-left:16px;}
/* 表单 */
.cta-form{padding:clamp(4rem,8vw,7rem) 0;background:linear-gradient(135deg,rgba(17,18,20,.92) 0%,rgba(17,18,20,.78) 100%),url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;color:#fff;}
.cta-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.cta-left .section-title{color:#fff;margin-bottom:16px;}
.cta-left .section-desc{color:rgba(255,255,255,.75);margin-bottom:28px;}
.cta-benefits{display:flex;flex-direction:column;gap:16px;margin-bottom:28px;}
.cta-benefit{display:flex;align-items:center;gap:12px;font-size:.9375rem;color:rgba(255,255,255,.9);}
.cta-benefit .icon{width:28px;height:28px;border-radius:50%;background:var(--tea);display:flex;align-items:center;justify-content:center;font-size:.75rem;color:#fff;flex-shrink:0;font-weight:700;}
.cta-card{background:var(--surface);border-radius:var(--radius-lg);padding:36px;color:var(--text);box-shadow:0 20px 60px rgba(0,0,0,.3);}
.cta-card h3{font-family:var(--serif);font-size:1.5rem;font-weight:800;color:var(--ink);margin-bottom:6px;}
.cta-card .sub{font-size:.875rem;color:var(--text-secondary);margin-bottom:24px;}
.form-group{margin-bottom:18px;}
.form-group label{display:block;font-size:.812rem;font-weight:500;color:var(--ink);margin-bottom:6px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.form-control{width:100%;height:48px;padding:0 16px;border:1px solid #DCD5C9;border-radius:10px;background:#fff;font-size:.9375rem;color:var(--text);transition:var(--transition);}
.form-control:focus{outline:none;border-color:var(--tea);box-shadow:0 0 0 3px rgba(168,124,78,.12);}
textarea.form-control{height:auto;min-height:100px;padding:12px 16px;resize:vertical;line-height:1.5;}
select.form-control{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236E6A63' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:40px;cursor:pointer;}
.btn-submit{width:100%;background:var(--tea);color:#fff;border:none;padding:14px 28px;border-radius:var(--radius-pill);font-size:1rem;font-weight:500;cursor:pointer;transition:var(--transition);display:flex;align-items:center;justify-content:center;gap:8px;}
.btn-submit:hover{background:var(--tea-dark);transform:translateY(-1px);box-shadow:0 6px 20px rgba(168,124,78,.3);}
.form-privacy{text-align:center;font-size:.75rem;color:var(--text-secondary);margin-top:14px;}
/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:64px 0 24px;font-size:.875rem;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px;}
.footer-brand .logo{font-family:var(--serif);font-size:1.25rem;font-weight:800;color:#fff;margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.footer-brand .logo-icon{width:34px;height:34px;background:var(--tea);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;color:#fff;}
.footer-brand p{font-size:.812rem;line-height:1.7;color:rgba(255,255,255,.55);max-width:320px;}
.footer-col h4{font-family:var(--serif);font-size:.9375rem;font-weight:700;color:#fff;margin-bottom:20px;position:relative;padding-bottom:10px;}
.footer-col h4::after{content:"";position:absolute;bottom:0;left:0;width:24px;height:2px;background:var(--tea);border-radius:2px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:rgba(255,255,255,.6);transition:var(--transition);}
.footer-col ul a:hover{color:var(--gold);padding-left:4px;}
.footer-contact li{display:flex;align-items:flex-start;gap:8px;margin-bottom:12px;font-size:.812rem;color:rgba(255,255,255,.6);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;text-align:center;font-size:.75rem;color:rgba(255,255,255,.4);}
.footer-bottom a{color:rgba(255,255,255,.5);transition:var(--transition);}
.footer-bottom a:hover{color:var(--gold);}
/* 通用卡片链接 */
.card-link-mask{position:absolute;top:0;left:0;right:0;bottom:0;z-index:1;}
/* 响应式 */
@media (max-width:1024px){
  .nav-channels{display:none;}
  .nav-burger{display:flex;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .services-grid{grid-template-columns:repeat(8,1fr);}
  .service-lg{grid-column:span 8;}
  .service-md{grid-column:span 8;}
  .service-sm{grid-column:span 4;}
  .news-layout{grid-template-columns:1fr 280px;}
  .cta-layout{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .site-nav{height:64px;}
  .nav-inner{height:64px;padding:0 16px;}
  .nav-logo-text{font-size:1rem;}
  .nav-status .count{display:none;}
  .nav-status{font-size:.687rem;padding:5px 10px;}
  .nav-cta{font-size:.812rem;padding:8px 16px;}
  .hero{min-height:auto;padding:140px 0 60px;}
  .hero-ribbon{font-size:.687rem;padding:6px 10px;}
  .hero-ribbon .timer{font-size:.875rem;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-data{justify-content:center;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
  .metric-card{padding:20px 16px;}
  .metric-num{font-size:2rem;}
  .services-grid{grid-template-columns:1fr;}
  .service-lg,.service-md,.service-sm{grid-column:span 1;}
  .compare-grid{grid-template-columns:1fr;gap:20px;}
  .compare-col{padding:20px;}
  .news-layout{grid-template-columns:1fr;}
  .news-side{display:none;}
  .cta-card{padding:24px;}
  .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-col{margin-bottom:8px;}
  .service-wide{flex-direction:column;align-items:flex-start;padding:20px;}
  .service-wide-left{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:10px;}
  .metric-card{padding:16px 12px;}
  .metric-num{font-size:1.625rem;}
  .metric-label{font-size:.75rem;}
  .nav-status{display:none;}
  .nav-cta{font-size:.75rem;padding:7px 14px;}
  .hero-data-item{font-size:.687rem;padding:6px 12px;}
  .hero-data-item .num{font-size:1rem;}
}

/* roulang page: category1 */
:root {
    --ink: #111214;
    --brown: #A67C4E;
    --gold: #C8A064;
    --cream: #F5F1EA;
    --surface: #FFFFFF;
    --text: #262522;
    --text-soft: #6E6A63;
    --line: #E8E2D8;
    --green: #3A7D5A;
    --red: #A34E4E;
    --shadow: 0 1px 2px rgba(17, 18, 20, .04), 0 4px 12px rgba(17, 18, 20, .05);
    --shadow-hover: 0 4px 8px rgba(17, 18, 20, .05), 0 16px 40px rgba(17, 18, 20, .12);
    --radius-card: 16px;
    --radius-btn: 100px;
    --ease: cubic-bezier(.4, 0, .2, 1);
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--cream);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  img {
    max-width: 100%;
    display: block;
  }

  button,
  input,
  select,
  textarea {
    font: inherit;
    color: inherit;
  }

  button {
    cursor: pointer;
    border: none;
    background: none;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }

  /* ===== 导航 ===== */
  .site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: 72px;
    background: rgba(17, 18, 20, .92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    transition: background .3s ease, box-shadow .3s ease;
  }

  .nav-inner {
    max-width: 1280px;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 32px;
  }

  .nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }

  .nav-logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--gold), var(--brown));
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    font-family: "Noto Serif SC", serif;
    box-shadow: 0 4px 12px rgba(166, 124, 78, .35);
  }

  .nav-logo-text {
    color: #F5F1EA;
    font-family: "Noto Serif SC", serif;
    font-size: 21px;
    font-weight: 700;
    letter-spacing: .5px;
  }

  .nav-logo-text span {
    color: var(--gold);
  }

  .nav-channels {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
  }

  .nav-channels a {
    position: relative;
    display: inline-block;
    padding: 8px 16px;
    color: rgba(245, 241, 234, .72);
    font-size: 15px;
    font-weight: 500;
    border-radius: 100px;
    transition: color .25s var(--ease), background .25s var(--ease);
  }

  .nav-channels a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 2px;
    width: 0;
    height: 2px;
    background: var(--gold);
    transform: translateX(-50%);
    transition: width .25s var(--ease);
    border-radius: 2px;
  }

  .nav-channels a:hover {
    color: #fff;
  }

  .nav-channels a:hover::after,
  .nav-channels a.active::after {
    width: 20px;
  }

  .nav-channels a.active {
    color: #fff;
    background: rgba(200, 160, 100, .12);
  }

  .nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-left: 8px;
    flex-shrink: 0;
  }

  .nav-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(245, 241, 234, .7);
    font-size: 13px;
    background: rgba(255, 255, 255, .06);
    padding: 5px 14px;
    border-radius: 100px;
    white-space: nowrap;
  }

  .nav-status .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 3px rgba(58, 125, 90, .25);
  }

  .nav-status .count {
    font-family: "Barlow Condensed", "DIN Alternate", sans-serif;
    font-weight: 600;
    font-size: 15px;
    color: var(--gold);
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--brown);
    color: #F5F1EA;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 22px;
    border-radius: 100px;
    transition: background .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
    box-shadow: 0 4px 14px rgba(166, 124, 78, .3);
  }

  .nav-cta:hover {
    background: #91683e;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(166, 124, 78, .4);
  }

  .nav-cta span {
    transition: transform .25s var(--ease);
  }

  .nav-cta:hover span {
    transform: translateX(4px);
  }

  .nav-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border-radius: 10px;
    background: rgba(255, 255, 255, .08);
  }

  .nav-burger span {
    display: block;
    height: 2px;
    width: 100%;
    background: #F5F1EA;
    border-radius: 2px;
    transition: transform .3s var(--ease), opacity .3s var(--ease), background .3s var(--ease);
  }

  /* ===== 分类页 Hero ===== */
  .category-hero {
    position: relative;
    min-height: 440px;
    display: flex;
    align-items: center;
    background: linear-gradient(100deg, rgba(17, 18, 20, .94) 0%, rgba(17, 18, 20, .74) 46%, rgba(17, 18, 20, .46) 100%), url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
    color: #F5F1EA;
    padding: 140px 0 90px;
  }

  .category-hero-breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(245, 241, 234, .55);
    margin-bottom: 18px;
  }

  .category-hero-breadcrumb a {
    color: rgba(245, 241, 234, .7);
    transition: color .25s var(--ease);
  }

  .category-hero-breadcrumb a:hover {
    color: var(--gold);
  }

  .category-hero-breadcrumb span {
    color: rgba(245, 241, 234, .45);
  }

  .category-hero h1 {
    font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
    font-size: clamp(2.25rem, 4.5vw, 4rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: 1px;
    max-width: 700px;
    margin-bottom: 14px;
  }

  .category-hero h1 em {
    font-style: normal;
    color: var(--gold);
  }

  .category-hero-sub {
    font-size: clamp(.95rem, 1.4vw, 1.1rem);
    color: rgba(245, 241, 234, .76);
    max-width: 540px;
    margin-bottom: 28px;
    line-height: 1.8;
  }

  .hero-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }

  .hero-metric-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 100px;
    padding: 8px 18px;
    font-size: 13px;
    color: rgba(245, 241, 234, .82);
    backdrop-filter: blur(6px);
  }

  .hero-metric-pill strong {
    font-family: "Barlow Condensed", "DIN Alternate", sans-serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--gold);
  }

  /* ===== 筛选器 + 列表区 ===== */
  .studio-section {
    position: relative;
    padding: 70px 0 40px;
  }

  .studio-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
    align-items: start;
  }

  /* 筛选项 sidebar */
  .filter-sidebar {
    position: sticky;
    top: 96px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 26px 22px;
    box-shadow: var(--shadow);
  }

  .filter-group {
    padding-bottom: 22px;
    margin-bottom: 22px;
    border-bottom: 1px solid var(--line);
  }

  .filter-group:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
  }

  .filter-group h4 {
    font-family: "Noto Serif SC", serif;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .filter-group h4::before {
    content: "";
    width: 4px;
    height: 14px;
    border-radius: 2px;
    background: var(--gold);
  }

  .filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .filter-tags button {
    padding: 6px 14px;
    border: 1px solid var(--line);
    background: var(--surface);
    border-radius: 100px;
    font-size: 13px;
    color: var(--text-soft);
    transition: all .25s var(--ease);
  }

  .filter-tags button:hover {
    border-color: var(--brown);
    color: var(--brown);
  }

  .filter-tags button.active {
    background: var(--brown);
    border-color: var(--brown);
    color: #fff;
    font-weight: 500;
  }

  .filter-note {
    margin-top: 20px;
    font-size: 12px;
    color: var(--text-soft);
    line-height: 1.6;
    border-top: 1px solid var(--line);
    padding-top: 16px;
  }

  /* 右边列表 */
  .studio-list-wrap {
    min-width: 0;
  }

  .list-topbar {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
  }

  .list-topbar h2 {
    font-family: "Noto Serif SC", serif;
    font-size: clamp(1.3rem, 2.2vw, 1.7rem);
    font-weight: 700;
    color: var(--text);
  }

  .list-topbar .result-count {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(166, 124, 78, .1);
    color: #8A5A2E;
    font-size: 14px;
    padding: 6px 16px;
    border-radius: 100px;
    font-weight: 500;
  }

  .list-topbar .result-count strong {
    font-family: "Barlow Condensed", "DIN Alternate", sans-serif;
    font-size: 18px;
    font-weight: 700;
  }

  .studio-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }

  .studio-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform .25s var(--ease), box-shadow .25s var(--ease);
  }

  .studio-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
  }

  .studio-card.hidden {
    display: none;
  }

  .studio-media {
    position: relative;
    overflow: hidden;
    min-height: 220px;
  }

  .studio-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4 / 3;
    transition: transform .5s var(--ease);
  }

  .studio-card:hover .studio-media img {
    transform: scale(1.03);
  }

  .studio-card-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(17, 18, 20, .75);
    backdrop-filter: blur(6px);
    color: #F5F1EA;
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 100px;
    letter-spacing: .5px;
  }

  .studio-content {
    padding: 24px 26px;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .studio-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    flex-wrap: wrap;
  }

  .studio-head h3 {
    font-family: "Noto Serif SC", serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
  }

  .studio-rating {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(200, 160, 100, .12);
    padding: 3px 10px;
    border-radius: 100px;
    font-size: 13px;
    color: #8A5A2E;
    font-weight: 500;
  }

  .studio-rating .stars {
    color: var(--gold);
    letter-spacing: 1px;
  }

  .studio-meta {
    font-size: 13px;
    color: var(--text-soft);
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .studio-desc {
    font-size: 14px;
    color: var(--text-soft);
    line-height: 1.75;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .studio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
  }

  .studio-tags span {
    display: inline-block;
    background: var(--cream);
    border: 1px solid var(--line);
    color: var(--text-soft);
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 6px;
  }

  .studio-actions {
    display: flex;
    gap: 12px;
    margin-top: 10px;
  }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--brown);
    color: #F5F1EA;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 24px;
    border-radius: 100px;
    border: none;
    transition: background .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
    cursor: pointer;
  }

  .btn-primary:hover {
    background: #91683e;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(166, 124, 78, .3);
  }

  .btn-primary span {
    transition: transform .25s var(--ease);
  }

  .btn-primary:hover span {
    transform: translateX(4px);
  }

  .btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: 1px solid var(--brown);
    color: var(--brown);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 24px;
    border-radius: 100px;
    transition: all .25s var(--ease);
    cursor: pointer;
  }

  .btn-outline:hover {
    background: rgba(166, 124, 78, .08);
    transform: translateY(-2px);
  }

  .btn-outline:focus-visible,
  .btn-primary:focus-visible,
  .nav-cta:focus-visible {
    outline: 3px solid rgba(168, 124, 78, .35);
    outline-offset: 2px;
  }

  .load-more-wrap {
    text-align: center;
    margin-top: 32px;
  }

  .load-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--surface);
    border: 1px solid var(--line);
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    padding: 12px 32px;
    border-radius: 100px;
    box-shadow: var(--shadow);
    transition: all .25s var(--ease);
  }

  .load-more-btn:hover {
    border-color: var(--brown);
    color: var(--brown);
    transform: translateY(-2px);
  }

  /* ===== CTA 转化条 ===== */
  .cta-band {
    padding: 30px 0 10px;
  }

  .cta-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
    background: linear-gradient(120deg, var(--ink), #1d1e22);
    border-radius: 20px;
    padding: 42px 48px;
    color: #F5F1EA;
    position: relative;
    overflow: hidden;
  }

  .cta-card::before {
    content: "";
    position: absolute;
    right: -40px;
    top: -40px;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(200, 160, 100, .18), transparent 70%);
    pointer-events: none;
  }

  .cta-card h2 {
    font-family: "Noto Serif SC", serif;
    font-size: clamp(1.4rem, 2.8vw, 2.2rem);
    font-weight: 700;
    max-width: 520px;
    line-height: 1.35;
  }

  .cta-card p {
    color: rgba(245, 241, 234, .65);
    font-size: 15px;
    margin-top: 8px;
    max-width: 500px;
  }

  .cta-card .cta-action {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }

  .cta-card .btn-primary {
    background: var(--gold);
    color: var(--ink);
    font-size: 16px;
    padding: 14px 34px;
    box-shadow: 0 8px 24px rgba(200, 160, 100, .25);
  }

  .cta-card .btn-primary:hover {
    background: #b28a48;
    color: #fff;
  }

  .cta-card .cta-note {
    font-size: 12px;
    color: rgba(245, 241, 234, .45);
  }

  /* ===== 适用场景 ===== */
  .scenario-section {
    padding: clamp(4rem, 8vw, 7rem) 0;
  }

  .section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 50px;
  }

  .section-header .section-kicker {
    display: inline-block;
    background: rgba(166, 124, 78, .1);
    color: #8A5A2E;
    font-size: 13px;
    font-weight: 500;
    padding: 4px 16px;
    border-radius: 100px;
    margin-bottom: 12px;
  }

  .section-header h2 {
    font-family: "Noto Serif SC", serif;
    font-size: clamp(1.75rem, 3.2vw, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--text);
  }

  .section-header p {
    font-size: 15px;
    color: var(--text-soft);
    margin-top: 14px;
  }

  .scenario-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .scenario-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 30px 26px;
    box-shadow: var(--shadow);
    transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
  }

  .scenario-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(166, 124, 78, .3);
  }

  .scenario-card .num {
    font-family: "Barlow Condensed", "DIN Alternate", sans-serif;
    font-size: 32px;
    font-weight: 700;
    color: var(--gold);
    margin-bottom: 14px;
    display: block;
  }

  .scenario-card h3 {
    font-family: "Noto Serif SC", serif;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
  }

  .scenario-card p {
    font-size: 14px;
    color: var(--text-soft);
    line-height: 1.7;
  }

  /* ===== 流程 ===== */
  .process-section {
    background: var(--ink);
    color: #F5F1EA;
    padding: clamp(4rem, 8vw, 7rem) 0;
    position: relative;
    overflow: hidden;
  }

  .process-section::before {
    content: "";
    position: absolute;
    left: -60px;
    bottom: -80px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(200, 160, 100, .08), transparent 70%);
  }

  .process-section .section-header {
    margin-bottom: 50px;
    position: relative;
    z-index: 1;
  }

  .process-section .section-header h2 {
    color: #F5F1EA;
  }

  .process-section .section-header p {
    color: rgba(245, 241, 234, .6);
  }

  .process-section .section-kicker {
    background: rgba(200, 160, 100, .15);
    color: var(--gold);
  }

  .process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
  }

  .process-step {
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 16px;
    padding: 32px 26px;
    transition: background .25s var(--ease), transform .25s var(--ease);
  }

  .process-step:hover {
    background: rgba(255, 255, 255, .07);
    transform: translateY(-4px);
  }

  .process-step .step-num {
    font-family: "Barlow Condensed", "DIN Alternate", sans-serif;
    font-size: 40px;
    font-weight: 700;
    color: var(--gold);
    line-height: 1;
    display: block;
    margin-bottom: 18px;
  }

  .process-step h3 {
    font-family: "Noto Serif SC", serif;
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #fff;
  }

  .process-step p {
    font-size: 14px;
    color: rgba(245, 241, 234, .6);
    line-height: 1.7;
  }

  /* ===== FAQ ===== */
  .faq-section {
    padding: clamp(4rem, 8vw, 7rem) 0;
  }

  .faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .faq-item {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 16px;
    overflow: hidden;
    transition: box-shadow .25s var(--ease), border-color .25s var(--ease);
  }

  .faq-item:hover {
    box-shadow: var(--shadow-hover);
  }

  .faq-item.open {
    border-color: rgba(166, 124, 78, .4);
  }

  .faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    text-align: left;
    padding: 22px 28px;
    background: transparent;
    border: none;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    transition: color .25s var(--ease);
    font-family: "Noto Sans SC", "Source Han Sans SC", sans-serif;
  }

  .faq-question:hover {
    color: var(--brown);
  }

  .faq-icon {
    position: relative;
    width: 22px;
    height: 22px;
    flex-shrink: 0;
  }

  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    background: var(--brown);
    border-radius: 2px;
    transition: transform .3s var(--ease), opacity .3s var(--ease);
  }

  .faq-icon::before {
    width: 14px;
    height: 2px;
    transform: translate(-50%, -50%);
  }

  .faq-icon::after {
    width: 2px;
    height: 14px;
    transform: translate(-50%, -50%);
  }

  .faq-item.open .faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
    opacity: 0;
  }

  .faq-item.open .faq-icon::before {
    transform: translate(-50%, -50%) rotate(180deg);
  }

  .faq-answer {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height .35s var(--ease), opacity .3s var(--ease), padding .3s var(--ease);
  }

  .faq-item.open .faq-answer {
    max-height: 320px;
    opacity: 1;
    padding: 0 28px 24px;
    border-top: 1px solid var(--line);
  }

  .faq-answer-inner {
    padding-top: 16px;
    font-size: 15px;
    color: var(--text-soft);
    line-height: 1.8;
  }

  /* ===== 页脚 ===== */
  .site-footer {
    background: var(--ink);
    color: rgba(245, 241, 234, .75);
    padding: 70px 0 30px;
    position: relative;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
  }

  .footer-brand .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: "Noto Serif SC", serif;
    font-size: 20px;
    font-weight: 700;
    color: #F5F1EA;
    margin-bottom: 16px;
  }

  .logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--gold), var(--brown));
    color: #fff;
    font-size: 18px;
  }

  .footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(245, 241, 234, .55);
  }

  .footer-col h4 {
    color: #F5F1EA;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
  }

  .footer-col ul {
    list-style: none;
  }

  .footer-col li {
    margin-bottom: 10px;
  }

  .footer-col a {
    font-size: 14px;
    color: rgba(245, 241, 234, .55);
    transition: color .25s var(--ease), padding-left .25s var(--ease);
  }

  .footer-col a:hover {
    color: var(--gold);
    padding-left: 4px;
  }

  .footer-contact li {
    font-size: 13px;
    line-height: 1.7;
    color: rgba(245, 241, 234, .5);
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding-top: 24px;
    font-size: 13px;
    color: rgba(245, 241, 234, .4);
    text-align: center;
    line-height: 1.8;
  }

  .footer-bottom a {
    color: rgba(245, 241, 234, .5);
  }

  .footer-bottom a:hover {
    color: var(--gold);
  }

  /* ===== 响应式 ===== */
  @media (max-width: 1023px) {
    .nav-channels {
      gap: 2px;
    }

    .nav-channels a {
      padding: 8px 12px;
      font-size: 14px;
    }

    .nav-status {
      display: none;
    }

    .studio-layout {
      grid-template-columns: 1fr;
    }

    .filter-sidebar {
      position: static;
      margin-bottom: 10px;
      padding: 20px;
    }

    .filter-groups-row {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px 20px;
    }

    .scenario-grid,
    .process-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
  }

  @media (max-width: 767px) {
    .nav-inner {
      padding: 0 16px;
      gap: 12px;
    }

    .nav-logo-text {
      font-size: 18px;
    }

    .nav-channels {
      display: none;
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      flex-direction: column;
      align-items: stretch;
      background: rgba(17, 18, 20, .98);
      padding: 24px 16px 32px;
      gap: 4px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, .3);
      border-bottom: 1px solid rgba(255, 255, 255, .06);
    }

    .site-nav.open .nav-channels {
      display: flex;
    }

    .nav-channels a {
      padding: 14px 16px;
      font-size: 16px;
      border-radius: 12px;
    }

    .nav-channels a::after {
      display: none;
    }

    .nav-channels a.active {
      background: rgba(200, 160, 100, .14);
    }

    .nav-right {
      margin-left: auto;
    }

    .nav-cta {
      padding: 8px 16px;
      font-size: 13px;
    }

    .nav-cta span {
      display: none;
    }

    .nav-burger {
      display: flex;
    }

    .site-nav.open .nav-burger span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .site-nav.open .nav-burger span:nth-child(2) {
      opacity: 0;
    }

    .site-nav.open .nav-burger span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    .category-hero {
      min-height: 400px;
      padding: 120px 0 70px;
    }

    .category-hero h1 {
      font-size: 2rem;
    }

    .hero-metric-pill {
      font-size: 12px;
      padding: 6px 12px;
    }

    .studio-layout {
      gap: 20px;
    }

    .filter-groups-row {
      grid-template-columns: 1fr;
    }

    .studio-card {
      grid-template-columns: 1fr;
    }

    .studio-media {
      min-height: 0;
    }

    .studio-media img {
      aspect-ratio: 16 / 9;
    }

    .studio-content {
      padding: 20px;
    }

    .studio-head h3 {
      font-size: 1.2rem;
    }

    .studio-actions {
      flex-direction: column;
    }

    .studio-actions .btn-primary,
    .studio-actions .btn-outline {
      justify-content: center;
    }

    .cta-card {
      padding: 32px 24px;
    }

    .cta-card .cta-action {
      width: 100%;
    }

    .cta-card .btn-primary {
      width: 100%;
      justify-content: center;
    }

    .scenario-grid,
    .process-grid {
      grid-template-columns: 1fr;
      gap: 16px;
    }

    .section-header {
      margin-bottom: 32px;
    }

    .faq-question {
      padding: 18px 20px;
      font-size: 15px;
    }

    .faq-item.open .faq-answer {
      padding: 0 20px 20px;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }
  }

  @media (max-width: 520px) {
    .nav-logo-icon {
      width: 32px;
      height: 32px;
      font-size: 16px;
    }

    .nav-logo-text {
      font-size: 16px;
    }

    .nav-cta {
      font-size: 12px;
      padding: 7px 12px;
    }

    .list-topbar {
      flex-direction: column;
      align-items: flex-start;
    }

    .studio-tags {
      gap: 6px;
    }

    .btn-outline {
      justify-content: center;
      width: 100%;
    }

    .btn-primary {
      justify-content: center;
      width: 100%;
    }

    .studio-actions .btn-primary,
    .studio-actions .btn-outline {
      width: 100%;
    }

    .hero-metrics {
      flex-direction: column;
      align-items: flex-start;
    }
  }