/* roulang page: index */
:root{
  --brand-amber:#E8610C;
  --ink-charcoal:#11100E;
  --ink-soft:#1C1712;
  --bg-warm:#FBF6EF;
  --accent-honey:#F2B84B;
  --text-warmgray:#7A6F63;
  --line-warm:#E8DFD3;
  --success-green:#2E7D5B;
  --error-red:#C0392B;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:system-ui,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg-warm);
  color:var(--ink-charcoal);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:all .2s ease;}
a:hover{color:var(--brand-amber);}
img{max-width:100%;height:auto;display:block;}
ul{list-style:none;}
button{cursor:pointer;font-family:inherit;}

/* 容器 */
.container{max-width:1280px;margin:0 auto;padding:0 1rem;}
@media(min-width:768px){.container{padding:0 2rem;}}

/* 导航 */
.site-header{
  background:var(--ink-charcoal);
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.top-nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:1rem;}
.logo-wrap{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand-amber) 0%,var(--accent-honey) 100%);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:18px;color:#fff;
  box-shadow:0 4px 12px rgba(232,97,12,.35);
  flex-shrink:0;
}
.logo-text{font-size:1.35rem;font-weight:900;color:#fff;letter-spacing:1px;line-height:1;}
.logo-text span{color:var(--accent-honey);}
.search-box{
  flex:1;max-width:340px;display:flex;align-items:center;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:999px;padding:0 14px;height:38px;
  transition:border-color .2s;
}
.search-box:focus-within{border-color:var(--brand-amber);}
.search-box i{color:rgba(255,255,255,.5);font-size:13px;margin-right:8px;}
.search-box input{
  background:transparent;border:none;outline:none;color:#fff;
  font-size:14px;width:100%;flex:1;
}
.search-box input::placeholder{color:rgba(255,255,255,.35);}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-amber);color:#fff;
  font-weight:600;font-size:14px;
  border-radius:999px;padding:9px 20px;
  border:none;cursor:pointer;
  transition:all .25s ease;
  box-shadow:0 4px 14px rgba(232,97,12,.3);
}
.btn-primary:hover{
  background:var(--brand-dark);color:#fff;
  box-shadow:0 6px 20px rgba(232,97,12,.4);
  transform:translateY(-1px);
}
.btn-primary:active{transform:scale(.97);}
.btn-primary:focus-visible{outline:3px solid rgba(232,97,12,.4);outline-offset:2px;}

.tabs-nav{
  background:var(--ink-charcoal);
  border-top:1px solid rgba(255,255,255,.04);
  border-bottom:1px solid rgba(255,255,255,.06);
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(10px);
  background-color:rgba(17,16,14,.96);
}
.tabs-nav .container{
  display:flex;align-items:center;gap:4px;
  overflow-x:auto;padding-top:8px;padding-bottom:8px;
  scrollbar-width:none;
}
.tabs-nav .container::-webkit-scrollbar{display:none;}
.tab-link{
  flex-shrink:0;
  padding:7px 18px;
  border-radius:999px;
  font-size:14px;font-weight:500;
  color:rgba(255,255,255,.65);
  background:transparent;
  transition:all .2s ease;
  white-space:nowrap;
}
.tab-link:hover{
  color:#fff;background:rgba(255,255,255,.08);
}
.tab-link.active{
  background:var(--brand-amber);color:#fff;font-weight:600;
}
.tab-link:focus-visible{outline:2px solid var(--brand-amber);outline-offset:2px;}

/* 按钮次级 */
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;color:var(--ink-charcoal);
  font-weight:600;font-size:14px;
  border:2px solid var(--ink-charcoal);
  border-radius:999px;padding:9px 20px;
  transition:all .25s ease;
  cursor:pointer;
}
.btn-secondary:hover{
  background:var(--ink-charcoal);color:#fff;
}
.btn-secondary:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand-amber);font-weight:600;font-size:15px;
  background:transparent;border:none;padding:6px 0;cursor:pointer;
  border-bottom:2px solid transparent;
  transition:all .2s;
}
.btn-ghost:hover{border-bottom-color:var(--brand-amber);color:var(--brand-dark);}
.btn-ghost i{font-size:12px;}

/* 标签 */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  background:rgba(232,97,12,.1);
  color:var(--brand-amber);
  font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:999px;
  letter-spacing:.3px;
}
.badge-honey{
  background:rgba(242,184,75,.15);
  color:#B8860B;
}
.badge-dark{
  background:var(--ink-charcoal);
  color:var(--accent-honey);
}

/* 卡片 */
.card{
  background:#fff;border-radius:16px;
  border:1px solid var(--line-warm);
  padding:28px;transition:all .3s ease;
  box-shadow:0 4px 16px rgba(28,23,18,.06);
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:0 12px 30px -12px rgba(28,23,18,.18);
}
.card-img-wrap{overflow:hidden;border-radius:14px;}
.card-img-wrap img{transition:transform .5s ease;width:100%;}
.card-img-wrap:hover img{transform:scale(1.05);}

/* 区块 */
.section-pad{padding:72px 0;}
.section-title-wrap{margin-bottom:40px;max-width:680px;}
.section-eyebrow{
  display:inline-block;
  font-size:13px;font-weight:700;
  color:var(--brand-amber);
  text-transform:uppercase;
  letter-spacing:2px;
  margin-bottom:10px;
}
.section-title{
  font-size:2rem;line-height:1.2;
  font-weight:900;letter-spacing:-0.5px;
  color:var(--ink-charcoal);
}
.section-title::after{
  content:'';display:block;
  width:32px;height:4px;
  background:var(--brand-amber);
  border-radius:4px;margin-top:14px;
}
.section-desc{
  margin-top:14px;font-size:1rem;
  color:var(--text-warmgray);line-height:1.7;
}
@media(min-width:768px){
  .section-title{font-size:2.5rem;}
  .section-pad{padding:96px 0;}
}

/* Hero 拼团 */
.hero{
  position:relative;
  background:
    linear-gradient(rgba(17,16,14,.92),rgba(17,16,14,.82)),
    url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  color:#fff;
  padding:80px 0 96px;
  min-height:85vh;display:flex;align-items:center;
}
.hero-grid{
  display:grid;grid-template-columns:1fr;
  gap:48px;align-items:center;
}
.hero-title{
  font-size:2.2rem;font-weight:900;
  line-height:1.2;letter-spacing:-0.5px;
  margin-bottom:18px;
}
.hero-title .text-honey{color:var(--accent-honey);}
.hero-sub{
  font-size:1.05rem;line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:540px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px;}
.hero-data{
  display:flex;flex-wrap:wrap;gap:24px;
  padding-top:24px;border-top:1px solid rgba(255,255,255,.1);
}
.hero-data-item .num{
  font-size:1.6rem;font-weight:900;color:var(--accent-honey);
  line-height:1.2;
}
.hero-data-item .label{
  font-size:13px;color:rgba(255,255,255,.55);
}
.hero-group-card{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  border-radius:20px;
  backdrop-filter:blur(8px);
  padding:28px;
  box-shadow:0 24px 60px -20px rgba(0,0,0,.5);
}
.hero-group-card .top-line{
  display:flex;justify-content:space-between;align-items:center;
  margin-bottom:16px;
}
.hero-group-card .price{
  font-size:2rem;font-weight:900;color:var(--accent-honey);
}
.hero-group-card .price small{
  font-size:.8rem;color:rgba(255,255,255,.5);font-weight:400;
}
.group-progress{height:8px;background:rgba(255,255,255,.1);border-radius:99px;overflow:hidden;margin-bottom:10px;}
.group-progress .bar{
  height:100%;background:linear-gradient(90deg,var(--brand-amber),var(--accent-honey));
  border-radius:99px;width:82%;
}
.group-meta{
  display:flex;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.65);margin-bottom:20px;
}
.hero-group-actions{display:flex;gap:12px;}
.btn-start-group{
  flex:1;background:var(--brand-amber);border:none;
  color:#fff;font-weight:700;font-size:15px;
  padding:12px 20px;border-radius:999px;
  transition:all .25s;cursor:pointer;
}
.btn-start-group:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(232,97,12,.4);}
.btn-join-group{
  flex:1;background:transparent;border:2px solid var(--accent-honey);
  color:var(--accent-honey);font-weight:700;font-size:15px;
  padding:12px 20px;border-radius:999px;
  transition:all .25s;cursor:pointer;
}
.btn-join-group:hover{background:var(--accent-honey);color:#1C1712;}

@media(min-width:1024px){
  .hero-grid{grid-template-columns:1.2fr .8fr;}
  .hero-title{font-size:3.2rem;}
}

/* 优惠阶梯 */
.ladder-grid{
  display:grid;grid-template-columns:1fr;gap:24px;
}
@media(min-width:768px){.ladder-grid{grid-template-columns:repeat(3,1fr);}}
.ladder-item{
  background:#fff;border-radius:16px;
  border:1px solid var(--line-warm);
  padding:28px;text-align:center;position:relative;
  transition:all .3s ease;
}
.ladder-item:hover{transform:translateY(-4px);box-shadow:0 12px 30px -12px rgba(28,23,18,.16);}
.ladder-item .people{
  font-size:2.4rem;font-weight:900;color:var(--brand-amber);
  line-height:1.2;
}
.ladder-item .people-label{font-size:13px;color:var(--text-warmgray);}
.ladder-item .discount{
  display:inline-block;margin-top:12px;
  background:rgba(232,97,12,.08);
  color:var(--brand-amber);font-size:14px;font-weight:700;
  padding:4px 16px;border-radius:99px;
}
.ladder-item.hot{
  border-color:var(--brand-amber);border-width:2px;
  box-shadow:0 12px 34px -12px rgba(232,97,12,.35);
}
.ladder-item.hot .ladder-flag{
  position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  background:var(--brand-amber);color:#fff;
  font-size:12px;font-weight:700;padding:3px 14px;border-radius:99px;
  white-space:nowrap;
}

/* 保障条 */
.guarantee-bar{
  background:var(--ink-charcoal);
  color:#fff;padding:40px 0;
}
.guarantee-grid{
  display:grid;grid-template-columns:1fr;gap:28px;text-align:center;
}
@media(min-width:768px){.guarantee-grid{grid-template-columns:repeat(3,1fr);}}
.guarantee-item{
  display:flex;flex-direction:column;align-items:center;gap:10px;
}
.guarantee-icon{
  width:52px;height:52px;border-radius:50%;
  background:rgba(232,97,12,.15);
  color:var(--accent-honey);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;
}
.guarantee-item h3{font-size:16px;font-weight:700;color:#fff;}
.guarantee-item p{font-size:14px;color:rgba(255,255,255,.55);line-height:1.5;max-width:260px;}

/* 统计 */
.stats-band{
  background:linear-gradient(135deg,#1C1712 0%,#14100C 100%);
  padding:60px 0;
}
.stats-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
}
@media(min-width:1024px){.stats-grid{grid-template-columns:repeat(4,1fr);}}
.stat-item{text-align:center;position:relative;}
.stat-item+.stat-item::before{
  content:'';position:absolute;left:-12px;top:20%;height:60%;
  width:1px;background:rgba(255,255,255,.12);
  display:none;
}
@media(min-width:1024px){
  .stat-item+.stat-item::before{display:block;}
}
.stat-item .num{
  font-size:2.6rem;font-weight:900;color:var(--accent-honey);
  line-height:1.1;
}
.stat-item .unit{font-size:1rem;color:rgba(255,255,255,.6);font-weight:500;}
.stat-item .label{font-size:14px;color:rgba(255,255,255,.5);margin-top:6px;}
@media(min-width:768px){.stat-item .num{font-size:3.5rem;}}

/* 案例 */
.case-row{
  display:grid;grid-template-columns:1fr;gap:40px;align-items:center;
  margin-bottom:48px;
}
.case-row:last-child{margin-bottom:0;}
@media(min-width:1024px){
  .case-row{grid-template-columns:1fr 1fr;gap:64px;}
  .case-row.row-reverse{direction:rtl;}
  .case-row.row-reverse>*{direction:ltr;}
}
.case-img{overflow:hidden;border-radius:20px;box-shadow:0 16px 40px -16px rgba(28,23,18,.25);}
.case-img img{
  width:100%;height:280px;object-fit:cover;object-position:center;
  transition:transform .5s ease;
}
@media(min-width:768px){.case-img img{height:360px;}}
.case-img:hover img{transform:scale(1.05);}
.case-content .case-title{font-size:1.4rem;font-weight:800;margin-bottom:12px;}
.case-content .case-desc{color:var(--text-warmgray);line-height:1.7;margin-bottom:14px;font-size:.97rem;}
.case-compare{
  display:flex;gap:24px;margin-bottom:16px;
}
.case-compare .before,.case-compare .after{
  flex:1;background:#fff;border-radius:12px;
  border:1px solid var(--line-warm);padding:14px;
}
.case-compare .before small,.case-compare .after small{
  display:block;font-size:12px;color:var(--text-warmgray);margin-bottom:4px;
}
.case-compare .before .val{font-weight:800;color:var(--text-warmgray);}
.case-compare .after .val{font-weight:900;color:var(--success-green);font-size:1.15rem;}

/* 套餐对比 */
.pricing-grid{
  display:grid;grid-template-columns:1fr;gap:24px;align-items:stretch;
}
@media(min-width:768px){.pricing-grid{grid-template-columns:repeat(3,1fr);}}
.pricing-card{
  background:#fff;border:1px solid var(--line-warm);
  border-radius:20px;padding:32px;position:relative;
  transition:all .3s ease;display:flex;flex-direction:column;
}
.pricing-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px -16px rgba(28,23,18,.2);}
.pricing-card.featured{
  border:2px solid var(--brand-amber);
  box-shadow:0 20px 50px -20px rgba(232,97,12,.35);
}
.featured-flag{
  position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  background:var(--brand-amber);color:#fff;
  font-size:12px;font-weight:700;padding:4px 18px;border-radius:99px;
  white-space:nowrap;
  letter-spacing:.5px;
}
.pricing-card .plan-name{font-size:1.1rem;font-weight:700;color:var(--ink-charcoal);margin-bottom:8px;}
.pricing-card .plan-price{font-size:2.4rem;font-weight:900;color:var(--ink-charcoal);line-height:1.1;}
.pricing-card .plan-price small{font-size:14px;color:var(--text-warmgray);font-weight:400;}
.pricing-card .plan-desc{font-size:14px;color:var(--text-warmgray);margin:8px 0 20px;line-height:1.5;}
.pricing-card ul{flex:1;margin-bottom:24px;}
.pricing-card ul li{
  display:flex;align-items:flex-start;gap:10px;
  padding:7px 0;font-size:14px;color:var(--ink-soft);
  line-height:1.5;
}
.pricing-card ul li i{color:var(--success-green);margin-top:4px;font-size:12px;flex-shrink:0;}

/* 资讯 */
.news-grid{
  display:grid;grid-template-columns:1fr;gap:40px;
}
@media(min-width:1024px){
  .news-grid{grid-template-columns:1fr 360px;}
}
.news-list-item{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:18px 0;
  border-bottom:1px solid var(--line-warm);
}
.news-list-item:last-child{border-bottom:none;}
.news-list-item .news-tag{
  flex-shrink:0;
  font-size:12px;background:rgba(232,97,12,.08);
  color:var(--brand-amber);padding:3px 12px;
  border-radius:99px;font-weight:600;
}
.news-list-item a{
  flex:1;font-size:15px;font-weight:500;color:var(--ink-charcoal);
  line-height:1.5;transition:color .2s;
}
.news-list-item a:hover{color:var(--brand-amber);}
.news-list-item time{
  flex-shrink:0;font-size:13px;color:var(--text-warmgray);
}
.news-sidebar-card{
  background:#fff;border-radius:16px;border:1px solid var(--line-warm);
  padding:24px;margin-bottom:20px;
  transition:all .3s;
}
.news-sidebar-card:hover{box-shadow:0 12px 30px -12px rgba(28,23,18,.15);}
.news-sidebar-card .thumb{
  width:100%;height:120px;object-fit:cover;border-radius:12px;margin-bottom:14px;
}
.news-sidebar-card h4{font-size:15px;font-weight:700;line-height:1.5;margin-bottom:8px;}
.news-sidebar-card h4 a{color:var(--ink-charcoal);}
.news-sidebar-card h4 a:hover{color:var(--brand-amber);}
.news-sidebar-card .meta{font-size:12px;color:var(--text-warmgray);}

/* FAQ */
.faq-wrap{
  display:grid;grid-template-columns:1fr;gap:40px;
}
@media(min-width:1024px){
  .faq-wrap{grid-template-columns:0.8fr 1.2fr;gap:80px;}
}
.faq-side .faq-cta{
  background:var(--ink-charcoal);color:#fff;
  border-radius:20px;padding:32px;margin-top:28px;
}
.faq-side .faq-cta h3{font-size:1.3rem;font-weight:800;margin-bottom:10px;}
.faq-side .faq-cta p{font-size:14px;color:rgba(255,255,255,.65);line-height:1.6;margin-bottom:20px;}
details.faq-item{
  background:#fff;border:1px solid var(--line-warm);
  border-radius:14px;margin-bottom:12px;
  overflow:hidden;transition:box-shadow .3s;
}
details.faq-item[open]{box-shadow:0 8px 24px -12px rgba(28,23,18,.15);}
details.faq-item summary{
  display:flex;justify-content:space-between;align-items:center;
  padding:18px 24px;cursor:pointer;
  font-weight:600;font-size:15px;color:var(--ink-charcoal);
  list-style:none;
}
details.faq-item summary::-webkit-details-marker{display:none;}
details.faq-item summary .faq-icon{
  width:24px;height:24px;border-radius:50%;
  background:rgba(232,97,12,.08);color:var(--brand-amber);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;transition:transform .3s;
  flex-shrink:0;
}
details.faq-item[open] summary .faq-icon{transform:rotate(45deg);}
details.faq-item .faq-body{
  padding:0 24px 20px;
  font-size:14px;color:var(--text-warmgray);
  line-height:1.75;
}

/* 限时入口 */
.limited-entry{
  position:relative;
  background:
    linear-gradient(rgba(17,16,14,.9),rgba(17,16,14,.85)),
    url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
  color:#fff;padding:70px 0;
  text-align:center;
}
.limited-entry .countdown{
  display:flex;justify-content:center;gap:20px;margin:32px 0;
}
.limited-entry .cd-item{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  border-radius:16px;padding:18px 22px;min-width:80px;
}
.limited-entry .cd-item .num{
  font-size:2rem;font-weight:900;color:var(--accent-honey);
  line-height:1.2;
}
.limited-entry .cd-item .label{font-size:12px;color:rgba(255,255,255,.55);}

/* 联系 */
.contact-grid{
  display:grid;grid-template-columns:1fr;gap:48px;
}
@media(min-width:1024px){
  .contact-grid{grid-template-columns:1.2fr .8fr;gap:80px;}
}
.contact-form{
  background:#fff;border-radius:20px;
  border:1px solid var(--line-warm);
  padding:32px;box-shadow:0 8px 30px -16px rgba(28,23,18,.1);
}
.contact-form .form-group{margin-bottom:20px;}
.contact-form label{
  display:block;font-size:14px;font-weight:600;
  color:var(--ink-charcoal);margin-bottom:6px;
}
.contact-form input,
.contact-form textarea{
  width:100%;border:1px solid var(--line-warm);
  border-radius:10px;padding:12px 16px;
  font-size:14px;font-family:inherit;
  background:var(--bg-warm);
  transition:border-color .2s,box-shadow .2s;
  color:var(--ink-charcoal);
}
.contact-form input:focus,
.contact-form textarea:focus{
  outline:none;border-color:var(--brand-amber);
  box-shadow:0 0 0 4px rgba(232,97,12,.15);
  background:#fff;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder{color:rgba(122,111,99,.5);}
.contact-form .btn-primary{width:100%;padding:13px;font-size:15px;}
.form-footnote{
  text-align:center;font-size:13px;color:var(--text-warmgray);
  margin-top:14px;
}
.contact-info h3{font-size:1.5rem;font-weight:800;margin-bottom:14px;}
.contact-info p{color:var(--text-warmgray);line-height:1.7;margin-bottom:24px;}
.contact-info-list li{
  display:flex;align-items:center;gap:14px;
  padding:12px 0;border-bottom:1px solid var(--line-warm);
  font-size:15px;
}
.contact-info-list li i{color:var(--brand-amber);width:20px;text-align:center;}
.contact-info-list li span{color:var(--text-warmgray);}

/* Footer */
.site-footer{
  background:var(--ink-charcoal);
  color:rgba(255,255,255,.7);
  padding-top:56px;
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
@media(min-width:768px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;}
}
.footer-brand .logo-text{font-size:1.4rem;}
.footer-brand p{
  font-size:14px;color:rgba(255,255,255,.5);
  line-height:1.7;margin-top:14px;max-width:320px;
}
.footer-links h4{
  color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;
}
.footer-links ul li{margin-bottom:10px;}
.footer-links ul li a{
  font-size:14px;color:rgba(255,255,255,.6);
  transition:color .2s;
}
.footer-links ul li a:hover{color:var(--accent-honey);}
.footer-bottom{
  display:flex;flex-direction:column;gap:8px;
  justify-content:center;align-items:center;
  padding:24px 0;font-size:13px;
  color:rgba(255,255,255,.4);
  text-align:center;
}
@media(min-width:768px){
  .footer-bottom{flex-direction:row;justify-content:space-between;}
}

/* 通用 */
.section-divider{border-top:1px solid var(--line-warm);}
.text-gradient{
  background:linear-gradient(90deg,var(--brand-amber),var(--accent-honey));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  color:transparent;
}
.mt-16{margin-top:64px;}
.mt-24{margin-top:96px;}
@media(max-width:768px){
  .mt-16{margin-top:40px;}
  .mt-24{margin-top:64px;}
}
.btn-arrow .fa-arrow-right{transition:transform .2s;}
.btn-arrow:hover .fa-arrow-right{transform:translateX(4px);}

/* roulang page: category1 */
:root{
  --brand-amber:#E8610C;
  --brand-dark:#C9540A;
  --ink-charcoal:#11100E;
  --ink-soft:#1C1712;
  --bg-warm:#FBF6EF;
  --accent-honey:#F2B84B;
  --text-warmgray:#7A6F63;
  --line-warm:#E8DFD3;
  --success-green:#2E7D5B;
  --error-red:#C0392B;
}
html{scroll-behavior:smooth;}
body{
  font-family:system-ui,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg-warm);
  color:var(--ink-charcoal);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:all .2s ease;}
a:hover{color:var(--brand-amber);}
img{max-width:100%;height:auto;display:block;}
button{cursor:pointer;font-family:inherit;}
.container{max-width:1280px;margin:0 auto;padding:0 1rem;}
@media(min-width:768px){.container{padding:0 2rem;}}

/* 导航 */
.site-header{
  background:var(--ink-charcoal);
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.top-nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:1rem;}
.logo-wrap{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand-amber) 0%,var(--accent-honey) 100%);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:18px;color:#fff;
  box-shadow:0 4px 12px rgba(232,97,12,.35);
  flex-shrink:0;
}
.logo-text{font-size:1.35rem;font-weight:900;color:#fff;letter-spacing:1px;line-height:1;}
.logo-text span{color:var(--accent-honey);}
.search-box{
  flex:1;max-width:340px;display:flex;align-items:center;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:999px;padding:0 14px;height:38px;
  transition:border-color .2s;
}
.search-box:focus-within{border-color:var(--brand-amber);}
.search-box i{color:rgba(255,255,255,.5);font-size:13px;margin-right:8px;}
.search-box input{
  background:transparent;border:none;outline:none;color:#fff;
  font-size:14px;width:100%;flex:1;
}
.search-box input::placeholder{color:rgba(255,255,255,.35);}
.tabs-nav{
  background:var(--ink-charcoal);
  border-top:1px solid rgba(255,255,255,.04);
  border-bottom:1px solid rgba(255,255,255,.06);
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(10px);
  background-color:rgba(17,16,14,.96);
}
.tabs-nav .container{
  display:flex;align-items:center;gap:4px;
  overflow-x:auto;padding-top:8px;padding-bottom:8px;
  scrollbar-width:none;
}
.tabs-nav .container::-webkit-scrollbar{display:none;}
.tabs-nav .tab-link{
  display:inline-flex;align-items:center;
  white-space:nowrap;
  font-size:14px;font-weight:500;
  color:rgba(255,255,255,.72);
  padding:7px 18px;border-radius:999px;
  transition:all .2s ease;
}
.tabs-nav .tab-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.tabs-nav .tab-link.active{
  background:var(--brand-amber);color:#fff;font-weight:600;
  box-shadow:0 4px 14px rgba(232,97,12,.35);
}

/* 按钮 */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-amber);color:#fff;
  font-weight:600;font-size:14px;
  border-radius:999px;padding:9px 20px;
  border:none;cursor:pointer;
  transition:all .25s ease;
  box-shadow:0 4px 14px rgba(232,97,12,.3);
}
.btn-primary:hover{background:var(--brand-dark);color:#fff;box-shadow:0 6px 20px rgba(232,97,12,.4);transform:translateY(-1px);}
.btn-primary:active{transform:scale(.97);}
.btn-primary:focus-visible{outline:3px solid rgba(232,97,12,.4);outline-offset:2px;}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;color:var(--ink-charcoal);
  font-weight:600;font-size:14px;
  border:2px solid var(--ink-charcoal);
  border-radius:999px;padding:9px 20px;
  transition:all .25s ease;
  cursor:pointer;
}
.btn-secondary:hover{background:var(--ink-charcoal);color:#fff;}
.btn-secondary:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand-amber);font-weight:600;font-size:15px;
  background:transparent;border:none;padding:6px 0;cursor:pointer;
  border-bottom:2px solid transparent;
  transition:all .2s;
}
.btn-ghost:hover{border-bottom-color:var(--brand-amber);color:var(--brand-dark);}
.btn-ghost i{font-size:12px;}

/* 标签 */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  background:rgba(232,97,12,.1);
  color:var(--brand-amber);
  font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:999px;
  letter-spacing:.3px;
}
.badge-honey{background:rgba(242,184,75,.15);color:#8a6d1a;}
.badge-dark{background:var(--ink-charcoal);color:var(--accent-honey);}
.badge-white{background:rgba(255,255,255,.15);color:#fff;}

/* 卡片 */
.card{
  background:#fff;border-radius:16px;
  border:1px solid var(--line-warm);
  padding:28px;transition:all .3s ease;
  box-shadow:0 4px 16px rgba(28,23,18,.06);
}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 30px -12px rgba(28,23,18,.18);}

/* 区块 */
.section-pad{padding:72px 0;}
@media(min-width:768px){.section-pad{padding:96px 0;}}
.section-title-wrap{margin-bottom:40px;max-width:680px;}
.section-eyebrow{
  display:inline-block;
  font-size:13px;font-weight:700;
  color:var(--brand-amber);
  text-transform:uppercase;
  letter-spacing:2px;
  margin-bottom:10px;
}
.section-title{
  font-size:2rem;line-height:1.2;
  font-weight:900;letter-spacing:-0.5px;
  color:var(--ink-charcoal);
}
.section-title::after{
  content:'';display:block;
  width:32px;height:4px;
  background:var(--brand-amber);
  border-radius:4px;margin-top:14px;
}
.section-desc{
  margin-top:14px;font-size:1rem;
  color:var(--text-warmgray);line-height:1.7;
}
@media(min-width:768px){.section-title{font-size:2.5rem;}}

/* ===== 视频库分类页特有样式 ===== */
.channel-banner{
  position:relative;
  background:
    linear-gradient(100deg, rgba(17,16,14,.94) 30%, rgba(17,16,14,.65) 70%, rgba(17,16,14,.45)),
    url('/assets/images/backpic/back-4.jpg') center/cover no-repeat;
  color:#fff;
  padding:80px 0 90px;
}
@media(min-width:768px){.channel-banner{padding:120px 0 140px;}}
.channel-banner .banner-inner{
  display:flex;flex-direction:column;gap:24px;
  max-width:680px;
}
.channel-banner .banner-badges{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
}
.channel-banner h1{
  font-size:2.2rem;font-weight:900;
  line-height:1.2;letter-spacing:-0.5px;
  margin:0;
}
.channel-banner h1 .text-honey{color:var(--accent-honey);}
.channel-banner .banner-summary{
  font-size:1.05rem;line-height:1.8;
  color:rgba(255,255,255,.8);
  max-width:540px;
  margin:0;
}
.channel-banner .banner-actions{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  margin-top:8px;
}
@media(min-width:768px){
  .channel-banner h1{font-size:3rem;}
}

/* 筛选条 */
.channel-filter{
  position:sticky;top:52px;z-index:40;
  background:rgba(251,246,239,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line-warm);
}
.channel-filter .filter-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:12px;padding-bottom:12px;
  flex-wrap:nowrap;
}
.filter-pills{
  display:flex;gap:6px;overflow-x:auto;
  scrollbar-width:none;flex-shrink:0;
  max-width:calc(100% - 140px);
}
.filter-pills::-webkit-scrollbar{display:none;}
.filter-pills .pill{
  display:inline-flex;align-items:center;
  white-space:nowrap;
  background:rgba(28,23,18,.06);
  color:var(--text-warmgray);
  font-size:13px;font-weight:500;
  padding:6px 16px;border-radius:999px;
  border:none;transition:all .2s ease;
}
.filter-pills .pill:hover{
  background:rgba(232,97,12,.1);
  color:var(--brand-amber);
}
.filter-pills .pill.active{
  background:var(--brand-amber);color:#fff;
  font-weight:600;
  box-shadow:0 3px 12px rgba(232,97,12,.3);
}
.filter-count{
  font-size:13px;color:var(--text-warmgray);
  white-space:nowrap;flex-shrink:0;
}
.filter-count strong{
  color:var(--brand-amber);font-size:15px;font-weight:800;
}
@media(max-width:640px){
  .channel-filter{top:48px;}
  .filter-count{display:none;}
  .filter-pills{max-width:100%;}
}

/* 内容瀑布网格 */
.masonry-grid{
  columns:1;
  column-gap:24px;
}
@media(min-width:768px){.masonry-grid{columns:2;}}
@media(min-width:1080px){.masonry-grid{columns:3;}}
.masonry-item{
  break-inside:avoid;
  margin-bottom:24px;
}
.media-card{
  background:#fff;
  border-radius:18px;
  border:1px solid var(--line-warm);
  overflow:hidden;
  transition:all .35s ease;
  box-shadow:0 4px 16px rgba(28,23,18,.06);
}
.media-card:hover{
  transform:translateY(-4px);
  box-shadow:0 16px 36px -14px rgba(28,23,18,.22);
}
.media-card .cover-wrap{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--ink-soft);
}
.media-card .cover-wrap img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.media-card:hover .cover-wrap img{transform:scale(1.05);}
.media-card .cover-cat{
  position:absolute;top:14px;left:14px;
  background:rgba(17,16,14,.78);
  color:var(--accent-honey);
  font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:999px;
  backdrop-filter:blur(4px);
}
.media-card .media-body{
  padding:20px 22px 22px;
}
.media-card .media-body h3{
  font-size:1.15rem;font-weight:800;
  line-height:1.4;margin:0 0 10px;
  color:var(--ink-charcoal);
  transition:color .25s;
}
.media-card:hover .media-body h3{color:var(--brand-amber);}
.media-card .media-summary{
  font-size:14px;color:var(--text-warmgray);
  line-height:1.7;margin:0 0 16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.media-card .media-meta{
  display:flex;align-items:center;justify-content:space-between;
  gap:10px;padding-top:14px;
  border-top:1px solid #f1ebe2;
  font-size:12px;color:var(--text-warmgray);
}
.media-card .media-meta .meta-left{
  display:flex;align-items:center;gap:12px;
}
.media-card .media-meta i{
  font-size:11px;color:var(--brand-amber);
  margin-right:3px;
}

/* 分页器 */
.pagination{
  display:flex;align-items:center;justify-content:center;
  gap:8px;padding:40px 0 8px;
}
.pagination a,.pagination span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:40px;height:40px;padding:0 14px;
  border-radius:999px;
  font-size:14px;font-weight:500;
  background:#fff;color:var(--ink-charcoal);
  border:1px solid var(--line-warm);
  transition:all .2s ease;
}
.pagination a:hover{
  background:var(--brand-amber);color:#fff;
  border-color:var(--brand-amber);
  transform:translateY(-2px);
}
.pagination .current{
  background:var(--brand-amber);color:#fff;
  border-color:var(--brand-amber);
  font-weight:700;
  cursor:default;
}
.pagination .disabled{
  opacity:.4;cursor:not-allowed;
}
.pagination .arrow-icon{font-size:13px;}

/* 相关推荐 */
.related-card{
  display:flex;align-items:center;
  gap:16px;
  background:#fff;
  border:1px solid var(--line-warm);
  border-radius:16px;
  padding:14px;
  transition:all .3s ease;
}
.related-card:hover{
  box-shadow:0 10px 28px -12px rgba(28,23,18,.18);
  transform:translateY(-2px);
}
.related-card .thumb{
  width:112px;height:72px;
  border-radius:12px;overflow:hidden;
  flex-shrink:0;
  background:var(--line-warm);
}
.related-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s ease;
}
.related-card:hover .thumb img{transform:scale(1.06);}
.related-card .related-info h4{
  font-size:15px;font-weight:700;line-height:1.4;
  color:var(--ink-charcoal);
  margin:0 0 6px;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-card:hover .related-info h4{color:var(--brand-amber);}
.related-card .related-info span{
  font-size:12px;color:var(--text-warmgray);
}
@media(max-width:640px){
  .related-card .thumb{width:92px;height:60px;}
}

/* CTA 区块 */
.cta-block{
  background:var(--ink-charcoal);
  border-radius:24px;
  padding:48px 32px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-block::before{
  content:'';
  position:absolute;top:-40%;right:-20%;
  width:420px;height:420px;
  background:radial-gradient(circle,rgba(232,97,12,.25),transparent 65%);
  pointer-events:none;
}
.cta-block h2{
  color:#fff;
  font-size:1.8rem;font-weight:900;
  margin:0 0 12px;letter-spacing:-.5px;
}
.cta-block p{
  color:rgba(255,255,255,.72);
  font-size:15px;margin:0 0 28px;max-width:480px;
  margin-left:auto;margin-right:auto;
}
@media(min-width:768px){
  .cta-block{padding:64px 48px;}
  .cta-block h2{font-size:2.4rem;}
}

/* 页脚 */
.site-footer{
  background:var(--ink-charcoal);
  color:rgba(255,255,255,.7);
  margin-top:96px;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:48px;}}
.footer-brand p{
  font-size:14px;line-height:1.8;
  color:rgba(255,255,255,.55);
  margin-top:16px;max-width:320px;
}
.footer-links h4{
  color:#fff;font-size:15px;font-weight:700;
  margin:0 0 16px;
}
.footer-links ul{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  color:rgba(255,255,255,.6);font-size:14px;
  transition:color .2s;
}
.footer-links a:hover{color:var(--accent-honey);}
.footer-bottom{
  display:flex;flex-direction:column;gap:6px;
  justify-content:space-between;align-items:center;
  padding:20px 0;
  font-size:13px;color:rgba(255,255,255,.4);
}
@media(min-width:768px){.footer-bottom{flex-direction:row;}}

/* 其他辅助 */
.text-brand{color:var(--brand-amber);}
.text-warmgray{color:var(--text-warmgray);}
.bg-warm{background:var(--bg-warm);}
.bg-ink{background:var(--ink-charcoal);}
.bg-card{background:#f5efe7;}
.divider-heart{
  display:flex;align-items:center;justify-content:center;
  gap:14px;color:var(--brand-amber);
  margin:0;
  opacity:.6;font-size:13px;
}
.focus-ring:focus-visible{
  outline:3px solid rgba(232,97,12,.35);
  outline-offset:2px;
}
@media(max-width:640px){
  .search-box{max-width:180px;}
  .top-nav .btn-primary{display:none!important;}
}