/* roulang page: index */
:root{
  --brand-600:#FF4D1C;
  --brand-700:#E13A0B;
  --brand-100:#FFE7DE;
  --accent-500:#12D6A2;
  --accent-2:#FFD34E;
  --ink-900:#12151A;
  --ink-700:#2A2F38;
  --ink-500:#5C636E;
  --line:#E6E2DA;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --soft:#F1EEE7;
  --grad:linear-gradient(120deg,#FF4D1C 0%,#FF2D6F 100%);
  --radius-lg:24px;
  --radius:20px;
  --radius-sm:16px;
  --shadow-1:0 8px 24px -12px rgba(18,21,26,.18);
  --shadow-2:0 18px 40px -16px rgba(255,77,28,.32);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:800;line-height:1.2;letter-spacing:-.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input,select,textarea{font-family:inherit;font-size:15px}
::selection{background:var(--brand-100);color:var(--brand-700)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent-500);
  outline-offset:2px;
  border-radius:6px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:88px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.section-head h2{font-size:24px;padding-left:16px;position:relative}
.section-head h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:5px;border-radius:3px;background:var(--brand-600)}
@media(min-width:1024px){.section-head h2{font-size:32px}}
.section-desc{color:var(--ink-500);font-size:14px;margin-top:10px;padding-left:16px;max-width:640px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-700);white-space:nowrap;transition:color .2s}
.link-arrow span{transition:transform .2s ease}
.link-arrow:hover span{transform:translateX(3px)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;min-height:44px;padding:0 26px;border-radius:999px;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease,border-color .2s ease;white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px -16px rgba(255,77,28,.9)}
.btn-primary:hover{box-shadow:var(--shadow-2);filter:brightness(1.03);transform:translateY(-1px)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-outline:hover{border-color:var(--brand-600);color:var(--brand-700)}
.btn-outline:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-ghost:active{transform:scale(.98)}
.btn-block{width:100%}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:700;background:var(--brand-100);color:var(--brand-700);white-space:nowrap;line-height:1}
.badge-accent{background:rgba(18,214,162,.14);color:#0B8F6C}
.badge-amber{background:rgba(255,211,78,.28);color:#8A6200}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);box-shadow:0 2px 12px -8px rgba(18,21,26,.35)}
.nav-wrap{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:24px;align-items:center;padding:14px 0;transition:padding .25s ease}
.site-header.scrolled .nav-wrap{padding:8px 0}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:44px;height:44px;border-radius:14px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;letter-spacing:-.02em;font-variant-numeric:tabular-nums;box-shadow:0 8px 18px -10px rgba(255,77,28,.9)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em}
.logo-text small{font-size:11px;color:var(--ink-500);letter-spacing:.04em;margin-top:3px}
.search-center{max-width:520px;width:100%;margin:0 auto}
.search-form{display:flex;align-items:center;gap:10px;height:46px;padding:0 8px 0 16px;border:1px solid var(--line);border-radius:999px;background:var(--soft);transition:border-color .2s,box-shadow .2s,background .2s}
.search-form:focus-within{border-color:var(--brand-600);background:#fff;box-shadow:0 0 0 3px rgba(255,77,28,.12)}
.search-form svg{flex-shrink:0;color:var(--ink-500)}
.search-form input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink-900);height:100%}
.search-form input::placeholder{color:#98A0AB}
.search-form button{height:34px;padding:0 18px;border-radius:999px;border:0;background:var(--grad);color:#fff;font-size:13px;font-weight:700;cursor:pointer;transition:filter .2s,transform .2s}
.search-form button:hover{filter:brightness(1.05)}
.search-form button:active{transform:scale(.97)}
.hot-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px;padding-left:4px}
.chip{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--soft);color:var(--ink-500);font-size:12px;transition:background .2s,color .2s;white-space:nowrap}
.chip:hover{background:var(--brand-100);color:var(--brand-700)}
.nav-actions{display:flex;align-items:center;gap:20px;justify-self:end}
.nav-link{position:relative;font-size:14px;font-weight:600;color:var(--ink-700);padding:6px 0;white-space:nowrap;transition:color .2s}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand-700)}
.nav-cta{height:42px;padding:0 20px;font-size:14px}
.burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer;color:var(--ink-900)}
@media(max-width:1023px){
  .nav-wrap{grid-template-columns:1fr auto;gap:12px}
  .search-center{grid-column:1 / -1;max-width:none;order:3}
  .nav-actions .nav-link,.nav-actions .nav-cta{display:none}
  .burger{display:inline-flex}
  .hot-chips{overflow-x:auto;flex-wrap:nowrap;padding-bottom:2px;scrollbar-width:none}
  .hot-chips::-webkit-scrollbar{display:none}
}

/* 抽屉 */
.drawer-overlay{position:fixed;inset:0;background:rgba(18,21,26,.5);opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:80}
.drawer-overlay.open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:#fff;z-index:90;transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column;padding:20px;overflow-y:auto;box-shadow:-20px 0 50px -30px rgba(18,21,26,.6)}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;font-size:20px;line-height:1;cursor:pointer;color:var(--ink-700)}
.drawer-label{font-size:12px;font-weight:700;color:var(--ink-500);letter-spacing:.08em;margin:18px 0 10px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;border-radius:12px;font-size:15px;font-weight:600;color:var(--ink-900);background:var(--soft);margin-bottom:10px;transition:background .2s,color .2s}
.drawer-nav a:hover{background:var(--brand-100);color:var(--brand-700)}
.drawer-nav a::after{content:"→";color:var(--brand-600);font-weight:700}

/* Hero */
.hero{position:relative;overflow:hidden;color:#fff;background:linear-gradient(150deg,#14171C 0%,#1B2A25 100%);padding:44px 0 56px}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(560px 360px at 10% 6%,rgba(255,77,28,.22),transparent 70%),radial-gradient(520px 340px at 88% 84%,rgba(18,214,162,.18),transparent 72%);pointer-events:none}
.hero .container{position:relative;z-index:1}
.hero-inner{display:grid;gap:36px;align-items:center}
@media(min-width:1024px){.hero-inner{grid-template-columns:7fr 5fr;gap:48px}.hero{padding:64px 0 76px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--accent-2)}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-2);border-radius:2px}
.hero h1{color:#fff;font-size:32px;line-height:1.18;letter-spacing:-.02em;margin-top:16px}
@media(min-width:768px){.hero h1{font-size:40px}}
@media(min-width:1024px){.hero h1{font-size:48px}}
.hero-sub{color:rgba(255,255,255,.78);font-size:16px;margin-top:16px;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:32px;max-width:540px}
@media(max-width:639px){.stat-row{grid-template-columns:repeat(2,minmax(0,1fr))}}
.stat{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:14px 16px}
.stat b{display:block;font-size:24px;font-weight:800;color:var(--accent-500);line-height:1.1;font-variant-numeric:tabular-nums}
.stat span{display:block;font-size:12px;color:rgba(255,255,255,.72);margin-top:6px;line-height:1.5}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);box-shadow:0 32px 60px -30px rgba(0,0,0,.85)}
.hero-visual::after{content:"";position:absolute;inset:0;border-radius:var(--radius-lg);background:linear-gradient(180deg,rgba(0,0,0,0) 48%,rgba(0,0,0,.58) 100%);pointer-events:none}
.hero-float{position:absolute;right:16px;bottom:16px;z-index:2;display:flex;align-items:center;gap:10px;background:rgba(18,21,26,.86);border:1px solid rgba(255,255,255,.16);border-radius:16px;padding:12px 16px;max-width:calc(100% - 32px)}
.hero-float strong{display:block;font-size:13px;color:#fff;font-weight:700;line-height:1.3}
.hero-float small{display:block;font-size:11px;color:rgba(255,255,255,.66);line-height:1.4;margin-top:2px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent-500);flex-shrink:0;box-shadow:0 0 0 0 rgba(18,214,162,.6);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(18,214,162,.55)}70%{box-shadow:0 0 0 10px rgba(18,214,162,0)}100%{box-shadow:0 0 0 0 rgba(18,214,162,0)}}

/* 分类入口条 */
.cat-bar{background:#fff;border-bottom:1px solid var(--line)}
.cat-bar-inner{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none}
.cat-bar-inner::-webkit-scrollbar{display:none}
.cat-pill{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--ink-700);white-space:nowrap;transition:border-color .2s,color .2s,background .2s}
.cat-pill svg{color:var(--brand-600)}
.cat-pill:hover{border-color:var(--brand-600);color:var(--brand-700);background:var(--brand-100)}

/* 阶梯 */
.ladder{display:grid;gap:16px}
@media(min-width:1024px){.ladder{grid-template-columns:repeat(4,minmax(0,1fr));align-items:end;gap:20px}}
.step-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-1);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;display:flex;flex-direction:column;height:100%}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.step-num{font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--brand-600);font-variant-numeric:tabular-nums}
.step-card h3{font-size:20px;margin-top:8px}
.step-tier{font-size:13px;color:var(--ink-500);margin-top:4px}
.step-list{margin-top:18px;display:grid;gap:10px;flex:1}
.step-list li{display:flex;gap:8px;font-size:14px;color:var(--ink-700);line-height:1.6}
.step-list li .tick{color:var(--accent-500);font-weight:800;flex-shrink:0}
.step-price{margin-top:20px;display:flex;align-items:baseline;gap:4px;font-variant-numeric:tabular-nums}
.step-price em{font-style:normal;font-size:14px;color:var(--brand-700);font-weight:700}
.step-price b{font-size:34px;font-weight:800;color:var(--ink-900);line-height:1;letter-spacing:-.02em}
.step-price small{font-size:13px;color:var(--ink-500)}
.step-card .btn{margin-top:16px}
.step-card.recommend{border-color:var(--brand-600);box-shadow:0 20px 44px -22px rgba(255,77,28,.45)}
.ribbon{position:absolute;top:-12px;left:20px;height:24px;padding:0 12px;border-radius:999px;background:var(--accent-2);color:#5C4300;font-size:12px;font-weight:800;display:inline-flex;align-items:center}
@media(min-width:1024px){
  .step-card:nth-child(1){margin-bottom:48px}
  .step-card:nth-child(2){margin-bottom:32px}
  .step-card:nth-child(3){margin-bottom:16px}
  .step-card:nth-child(4){margin-bottom:0}
}

/* 套餐对比 */
.plans{display:grid;gap:20px}
@media(min-width:768px){.plans{grid-template-columns:repeat(3,minmax(0,1fr))}}
.plan{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;transition:transform .3s ease,box-shadow .3s ease}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.plan.recommended{border-color:var(--brand-600)}
@media(min-width:768px){.plan.recommended{transform:translateY(-12px)}.plan.recommended:hover{transform:translateY(-16px)}}
.plan.recommended::before{content:"";position:absolute;left:-1px;right:-1px;top:-1px;height:6px;border-radius:20px 20px 0 0;background:var(--grad)}
.plan-name{font-size:18px;font-weight:800;color:var(--ink-900)}
.plan-note{font-size:13px;color:var(--ink-500);margin-top:4px}
.plan-price{display:flex;align-items:baseline;gap:4px;margin-top:18px;font-variant-numeric:tabular-nums}
.plan-price b{font-size:40px;font-weight:800;color:var(--ink-900);line-height:1;letter-spacing:-.03em}
.plan-price span{font-size:14px;color:var(--ink-500)}
.plan-rule{height:1px;background:var(--line);margin:20px 0}
.plan-list{display:grid;gap:11px;flex:1}
.plan-list li{display:flex;gap:9px;font-size:14px;line-height:1.6;color:var(--ink-700)}
.plan-list li i{font-style:normal;font-weight:800;flex-shrink:0;width:18px;text-align:center}
.plan-list li.ok i{color:var(--accent-500)}
.plan-list li.no{color:#9AA1AB}
.plan-list li.no i{color:#C6CBD2}
.plan .btn{margin-top:22px}
.plan-foot{margin-top:20px;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-sm);padding:16px 20px;font-size:13px;color:var(--ink-500);line-height:1.8}

/* 限时入口 */
.limited{position:relative;overflow:hidden;border-radius:var(--radius-lg);background:linear-gradient(120deg,#14171C,#1B2A25);padding:32px;display:grid;gap:26px}
@media(min-width:1024px){.limited{grid-template-columns:1fr auto;align-items:center;padding:44px 48px;gap:40px}}
.limited::before{content:"";position:absolute;inset:0;background:radial-gradient(420px 260px at 8% 18%,rgba(255,77,28,.28),transparent 70%),radial-gradient(380px 240px at 80% 92%,rgba(255,45,111,.22),transparent 72%);pointer-events:none}
.limited>*{position:relative;z-index:1}
.limited h2{color:#fff;font-size:24px}
@media(min-width:1024px){.limited h2{font-size:30px}}
.limited p{color:rgba(255,255,255,.74);font-size:14px;margin-top:10px;max-width:480px}
.countdown{display:flex;align-items:center;gap:10px;margin-top:20px}
.cd-cell{min-width:64px;padding:10px 8px;border-radius:14px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);text-align:center}
.cd-cell b{display:block;font-size:28px;font-weight:800;line-height:1;color:var(--accent-500);font-variant-numeric:tabular-nums}
.cd-cell span{display:block;font-size:11px;color:rgba(255,255,255,.6);margin-top:6px}
.cd-sep{color:rgba(255,255,255,.45);font-weight:800;font-size:20px;padding-bottom:14px}
.limited-side{display:flex;flex-direction:column;gap:12px}
@media(max-width:1023px){.limited-side .btn{width:100%}.countdown{justify-content:center}}

/* 资讯区 */
.news-grid{display:grid;gap:20px}
@media(min-width:1024px){.news-grid{grid-template-columns:7fr 5fr;align-items:start;gap:24px}}
.news-lead{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .3s ease,box-shadow .3s ease;height:100%}
.news-lead:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.news-lead-cover{position:relative;display:block;overflow:hidden}
.news-lead-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.news-lead:hover .news-lead-cover img{transform:scale(1.04)}
.news-lead-cover .badge{position:absolute;top:14px;left:14px;background:#fff;color:var(--brand-700)}
.news-lead-body{padding:22px;display:flex;flex-direction:column;flex:1}
.news-lead-body h3{font-size:20px;line-height:1.45}
.news-lead-body h3 a{transition:color .2s}
.news-lead-body h3 a:hover{color:var(--brand-700)}
.news-lead-body p{font-size:14px;color:var(--ink-500);margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:18px;font-size:13px;color:var(--ink-500)}
.news-list{display:grid;gap:12px}
.news-list li>a{display:grid;grid-template-columns:88px minmax(0,1fr);gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 16px;transition:border-color .2s,transform .2s,box-shadow .2s}
.news-list li>a:hover{border-color:var(--brand-600);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.nl-side{display:flex;flex-direction:column;gap:6px;align-items:flex-start;border-right:1px dashed var(--line);padding-right:10px;min-height:44px;justify-content:center}
.nl-side time{font-size:12px;color:var(--ink-500);font-variant-numeric:tabular-nums;line-height:1.4}
.nl-main h3{font-size:15px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.nl-main p{font-size:13px;color:var(--ink-500);margin-top:4px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{grid-column:1 / -1;min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:32px;text-align:center;color:var(--ink-500);font-size:14px}
.empty-state svg{color:#C6CBD2}

/* FAQ */
.faq-wrap{display:grid;gap:28px}
@media(min-width:1024px){.faq-wrap{grid-template-columns:4fr 8fr;gap:48px;align-items:start}}
.faq-side h2{font-size:24px}
@media(min-width:1024px){.faq-side h2{font-size:32px}}
.faq-side p{color:var(--ink-500);font-size:14px;margin-top:14px;max-width:340px}
.faq-side .link-arrow{margin-top:18px}
.faq-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:4px 22px;box-shadow:var(--shadow-1)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;border:0;background:none;font-size:16px;font-weight:700;color:var(--ink-900);text-align:left;cursor:pointer;line-height:1.5;transition:color .2s}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{width:26px;height:26px;flex-shrink:0;border-radius:8px;border:1.5px solid var(--brand-600);color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;line-height:1;transition:transform .2s ease,background .2s ease,color .2s ease}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand-600);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--ink-700);max-width:660px}

/* 表单区 */
.contact{background:var(--soft);border-radius:var(--radius-lg);padding:28px;display:grid;gap:28px}
@media(min-width:1024px){.contact{grid-template-columns:5fr 7fr;gap:48px;padding:48px}}
.contact h2{font-size:24px}
@media(min-width:1024px){.contact h2{font-size:30px}}
.contact-lead{font-size:14px;color:var(--ink-500);margin-top:12px;max-width:400px}
.contact-points{margin-top:22px;display:grid;gap:12px}
.contact-points li{display:flex;gap:10px;font-size:14px;line-height:1.7}
.contact-points li span{color:var(--accent-500);font-weight:800;flex-shrink:0}
.contact-meta{margin-top:24px;padding-top:20px;border-top:1px solid rgba(18,21,26,.08);font-size:13px;color:var(--ink-500);line-height:1.9}
.contact-meta b{color:var(--ink-900);font-weight:700}
.form-grid{display:grid;gap:16px}
@media(min-width:768px){.form-grid{grid-template-columns:1fr 1fr}.form-grid .full{grid-column:1 / -1}}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px}
.field label .req{color:var(--brand-600);margin-left:2px}
.field input,.field select,.field textarea{width:100%;min-height:46px;padding:10px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink-900);transition:border-color .2s,box-shadow .2s;appearance:none}
.field select{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235C636E' d='M1.4 0 6 4.6 10.6 0 12 1.4 6 7.4 0 1.4z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(255,77,28,.12)}
.form-tip{font-size:12px;color:var(--ink-500);margin-top:14px;line-height:1.8}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:48px 0 0;margin-top:56px}
@media(min-width:1024px){.site-footer{margin-top:88px;padding-top:64px}}
.footer-grid{display:grid;gap:32px;padding-bottom:36px}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand .logo-mark{box-shadow:none}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text small{color:rgba(255,255,255,.55)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin-top:16px;max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s,transform .2s;display:inline-block}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-col p{font-size:14px;color:rgba(255,255,255,.62);line-height:1.9}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}

/* 返回顶部 */
.to-top{position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);display:none;align-items:center;justify-content:center;cursor:pointer;z-index:50;color:var(--ink-900);transition:transform .2s,box-shadow .2s,color .2s}
.to-top:hover{color:var(--brand-700);transform:translateY(-3px);box-shadow:var(--shadow-2)}
.to-top.show{display:inline-flex}
@media(max-width:1023px){.to-top{display:none !important}}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --brand-600:#FF4D1C;
  --brand-700:#E13A0B;
  --brand-100:#FFE7DE;
  --accent-500:#12D6A2;
  --accent-2:#FFD34E;
  --ink-900:#12151A;
  --ink-700:#2A2F38;
  --ink-500:#5C636E;
  --line:#E6E2DA;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --soft:#F1EEE7;
  --radius-lg:24px;
  --radius:20px;
  --radius-sm:14px;
  --shadow-1:0 8px 24px -12px rgba(18,21,26,.18);
  --shadow-2:0 18px 40px -16px rgba(255,77,28,.32);
  --grad:linear-gradient(120deg,#FF4D1C 0%,#FF2D6F 100%);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow","Noto Sans SC",ui-sans-serif,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
html body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
html body h1,html body h2,html body h3,html body h4{
  margin:0;
  color:var(--ink-900);
  font-family:var(--font-cn);
  letter-spacing:-.01em;
}
html body p{margin:0;}
html body ul,html body ol{margin:0;padding:0;list-style:none;}
html body a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease;}
html body img{max-width:100%;display:block;border:0;}
html body button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
html body input,html body select,html body textarea{font-family:inherit;font-size:inherit;color:inherit;}
html body ::selection{background:var(--brand-100);color:var(--brand-700);}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media(min-width:768px){.container{padding-left:24px;padding-right:24px;}}
@media(min-width:1280px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 10px -6px rgba(18,21,26,.18);
  transition:padding .25s ease,box-shadow .25s ease;
}
.site-header.is-compact{box-shadow:0 6px 18px -12px rgba(18,21,26,.35);}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:18px;
  padding-top:14px;
  padding-bottom:14px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:42px;height:42px;border-radius:14px;
  background:var(--grad);
  color:#fff;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-weight:800;
  font-size:16px;
  letter-spacing:.02em;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(255,77,28,.85);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;}
.logo-text small{font-size:11px;color:var(--ink-500);letter-spacing:.06em;margin-top:3px;}
.search-center{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;gap:8px;align-items:center;}
.search-form{
  display:flex;align-items:center;gap:10px;
  width:100%;max-width:520px;
  height:46px;
  padding:0 6px 0 16px;
  background:var(--soft);
  border:1px solid transparent;
  border-radius:999px;
  color:var(--ink-500);
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.search-form:focus-within{
  background:#fff;
  border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(255,77,28,.12);
}
.search-form svg{flex:0 0 auto;color:var(--ink-500);}
.search-form input[type="search"]{
  flex:1 1 auto;min-width:0;height:100%;
  border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink-900);
}
.search-form input[type="search"]::placeholder{color:var(--ink-500);}
.search-form button{
  flex:0 0 auto;
  height:34px;padding:0 18px;
  border-radius:999px;
  background:var(--grad);
  color:#fff;font-size:13px;font-weight:700;
  letter-spacing:.04em;
  transition:filter .2s ease,transform .2s ease;
}
.search-form button:hover{filter:brightness(1.05);transform:translateY(-1px);}
.search-form button:active{transform:scale(.98);}
.hot-chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;}
.chip{
  display:inline-flex;align-items:center;
  height:26px;padding:0 11px;
  border-radius:999px;
  background:var(--soft);
  color:var(--ink-500);
  font-size:13px;
  white-space:nowrap;
  transition:background-color .2s ease,color .2s ease;
}
.chip:hover{background:var(--brand-100);color:var(--brand-700);}
.nav-actions{display:flex;align-items:center;gap:6px;flex:0 0 auto;}
.nav-link{
  position:relative;
  padding:8px 10px;
  font-size:14px;font-weight:600;color:var(--ink-700);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;
  background:var(--brand-600);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:999px;
  font-size:14px;font-weight:700;
  letter-spacing:.02em;
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 10px 22px -14px rgba(255,77,28,.95);
}
.btn-primary:hover{filter:brightness(1.05);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:scale(.98);}
.btn-secondary{
  background:var(--surface);
  color:var(--ink-900);
  border:1px solid var(--line);
}
.btn-secondary:hover{border-color:var(--brand-600);color:var(--brand-700);transform:translateY(-2px);}
.btn-ghost{
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4);
}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:13px;}
.nav-cta{height:42px;padding:0 20px;margin-left:6px;}
.burger{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;color:var(--ink-900);
}
.burger:hover{border-color:var(--brand-600);color:var(--brand-700);}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:80;
  background:rgba(18,21,26,.48);
  opacity:0;visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;
  width:288px;max-width:86vw;
  background:#fff;
  border-left:1px solid var(--line);
  padding:22px 20px 28px;
  transform:translateX(102%);
  transition:transform .28s ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-title{font-size:15px;font-weight:800;color:var(--ink-900);}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-700);
}
.drawer-close:hover{border-color:var(--brand-600);color:var(--brand-700);}
.drawer-list{display:flex;flex-direction:column;gap:4px;margin-bottom:18px;}
.drawer-list a{
  display:block;padding:12px 12px;border-radius:12px;
  font-size:14px;font-weight:600;color:var(--ink-700);
}
.drawer-list a:hover{background:var(--brand-100);color:var(--brand-700);}
.drawer-sub{font-size:12px;font-weight:700;color:var(--ink-500);letter-spacing:.08em;margin:18px 0 10px;}
.drawer .btn{width:100%;}

/* ---------- 面包屑 ---------- */
.crumbs{
  padding:20px 0 0;
  font-size:13px;color:var(--ink-500);
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;
}
.crumbs::-webkit-scrollbar{display:none;}
.crumbs a:hover{color:var(--brand-700);}
.crumbs .sep{color:#C9C3B8;}
.crumbs .current{color:var(--ink-900);font-weight:600;max-width:60vw;overflow:hidden;text-overflow:ellipsis;}

/* ---------- 文章头部 ---------- */
.article-head{padding:18px 0 26px;}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;
  border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  background:var(--brand-100);color:var(--brand-700);
}
.badge-accent{background:rgba(18,214,162,.14);color:#0A8F6D;}
.badge-dark{background:var(--ink-900);color:#fff;}
.article-title{
  font-size:32px;font-weight:800;line-height:1.22;letter-spacing:-.02em;
  color:var(--ink-900);
  max-width:860px;
}
.article-lead{
  margin-top:14px;max-width:760px;
  font-size:15.5px;line-height:1.85;color:var(--ink-500);
}
.meta-row{
  margin-top:20px;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  font-size:13.5px;color:var(--ink-500);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C9C3B8;}
.meta-row strong{color:var(--ink-900);font-weight:700;}
.cover-wrap{margin:24px 0 0;}
.cover-wrap img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:16px;
  box-shadow:var(--shadow-1);
  background:#E9E5DC;
}
.cover-cap{margin-top:10px;text-align:center;font-size:13px;color:var(--ink-500);}

/* ---------- 主体两栏 ---------- */
.article-body{padding:8px 0 56px;}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:36px;}
@media(min-width:1024px){
  .article-grid{grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start;}
}
.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px 20px;
  box-shadow:var(--shadow-1);
}
@media(min-width:768px){.panel{padding:36px 40px;}}

/* ---------- 正文排版 ---------- */
.prose{
  font-size:17px;line-height:1.9;color:var(--ink-700);
  overflow-wrap:break-word;word-break:break-word;
}
.prose > *:first-child{margin-top:0;}
.prose p{margin:0 0 1.1em;}
.prose > p:first-of-type{
  font-size:17px;color:var(--ink-700);
  padding-left:16px;border-left:3px solid var(--brand-600);
}
.prose h2{
  font-size:24px;font-weight:800;line-height:1.35;color:var(--ink-900);
  margin:1.9em 0 .75em;
  padding-left:16px;
  border-left:4px solid var(--brand-600);
  scroll-margin-top:96px;
}
.prose h3{
  font-size:19px;font-weight:700;line-height:1.45;color:var(--ink-900);
  margin:1.6em 0 .6em;
  scroll-margin-top:96px;
}
.prose h4{font-size:17px;font-weight:700;color:var(--ink-900);margin:1.4em 0 .5em;}
.prose ul,.prose ol{margin:0 0 1.25em;padding-left:1.4em;}
.prose ul{list-style:disc;}
.prose ol{list-style:decimal;}
.prose li{margin:0 0 .55em;line-height:1.9;}
.prose li::marker{color:var(--brand-600);font-weight:700;}
.prose blockquote{
  margin:1.4em 0;
  padding:16px 20px;
  background:linear-gradient(90deg,rgba(255,231,222,.9),rgba(255,255,255,0));
  border-left:4px solid var(--brand-600);
  border-radius:0 14px 14px 0;
  color:var(--ink-700);
  font-size:16px;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:16px;margin:1.4em 0;box-shadow:var(--shadow-1);}
.prose figure{margin:1.4em 0;}
.prose figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:8px;}
.prose a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.prose a:hover{color:var(--brand-600);}
.prose strong{color:var(--ink-900);font-weight:700;}
.prose table{
  width:100%;border-collapse:collapse;margin:1.4em 0;
  font-size:15px;line-height:1.7;
}
.prose th{
  background:var(--ink-900);color:#fff;font-weight:700;
  padding:12px 14px;text-align:left;white-space:nowrap;
}
.prose td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top;}
.prose tbody tr:nth-child(even) td{background:#FBFAF7;}
.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.prose code{
  background:var(--soft);border-radius:6px;padding:2px 6px;
  font-size:14px;color:var(--brand-700);
}

/* 空态 */
.empty-state{
  min-height:260px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:32px 16px;
}
.empty-state svg{color:var(--ink-500);}
.empty-state h3{font-size:18px;font-weight:700;color:var(--ink-900);}
.empty-state p{font-size:14px;color:var(--ink-500);max-width:420px;}

/* ---------- 文末 ---------- */
.article-foot{margin-top:34px;padding-top:26px;border-top:1px solid var(--line);}
.foot-label{font-size:13px;font-weight:700;color:var(--ink-500);letter-spacing:.08em;margin-bottom:12px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px;}
.tag-cloud a{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:13px;color:var(--ink-700);
}
.tag-cloud a:hover{border-color:var(--brand-600);color:var(--brand-700);background:var(--brand-100);}
.nav-cards{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:22px;}
@media(min-width:768px){.nav-cards{grid-template-columns:1fr 1fr;}}
.nav-card{
  display:block;padding:16px 18px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.nav-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-1);border-color:#F0C4B3;}
.nav-card span{display:block;font-size:12px;font-weight:700;color:var(--brand-700);letter-spacing:.08em;margin-bottom:6px;}
.nav-card strong{display:block;font-size:15px;font-weight:700;color:var(--ink-900);line-height:1.5;}
.nav-card small{display:block;margin-top:6px;font-size:13px;color:var(--ink-500);line-height:1.6;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--brand-700);
}
.text-link svg{transition:transform .2s ease;}
.text-link:hover svg{transform:translateX(3px);}

/* ---------- 侧栏 ---------- */
.side{display:flex;flex-direction:column;gap:20px;}
@media(min-width:1024px){
  .side{position:sticky;top:96px;}
}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow-1);
}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:800;color:var(--ink-900);
  margin-bottom:14px;
}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--grad);}
.rec-list{display:flex;flex-direction:column;gap:14px;}
.rec-item{display:flex;gap:12px;align-items:flex-start;}
.rec-item img{
  width:76px;height:58px;flex:0 0 auto;object-fit:cover;
  border-radius:10px;background:#E9E5DC;
  transition:transform .4s ease;
}
.rec-item:hover img{transform:scale(1.05);}
.rec-item .rec-txt{min-width:0;}
.rec-item strong{
  display:block;font-size:13.5px;font-weight:700;line-height:1.5;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-item small{display:block;margin-top:4px;font-size:12px;color:var(--ink-500);}
.rec-item:hover strong{color:var(--brand-700);}
.side-cta{
  position:relative;overflow:hidden;
  background:radial-gradient(120% 120% at 100% 0%,rgba(255,77,28,.28),transparent 60%),linear-gradient(160deg,#14171C 0%,#1B2A25 100%);
  border:0;border-radius:var(--radius);padding:24px 20px;color:#fff;
}
.side-cta h3{font-size:17px;font-weight:800;color:#fff;line-height:1.45;margin-bottom:8px;}
.side-cta p{font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.7;margin-bottom:16px;}
.side-cta .btn{width:100%;}
.side-back{display:block;text-align:center;padding:12px;border-radius:var(--radius-sm);border:1px dashed var(--line);font-size:13.5px;font-weight:600;color:var(--ink-500);background:#fff;}
.side-back:hover{border-color:var(--brand-600);color:var(--brand-700);border-style:solid;}

/* ---------- 窄 CTA 条 ---------- */
.cta-strip{
  background:var(--grad);
  color:#fff;
}
.cta-strip .inner{
  display:flex;flex-direction:column;gap:16px;align-items:flex-start;
  padding:28px 0;
}
@media(min-width:768px){
  .cta-strip .inner{flex-direction:row;align-items:center;justify-content:space-between;padding:30px 0;}
}
.cta-strip h2{font-size:20px;font-weight:800;color:#fff;line-height:1.4;}
.cta-strip p{font-size:14px;color:rgba(255,255,255,.86);margin-top:6px;}
.btn-light{background:#fff;color:var(--brand-700);box-shadow:0 10px 22px -14px rgba(18,21,26,.6);}
.btn-light:hover{transform:translateY(-2px);filter:brightness(1.02);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:rgba(255,255,255,.7);
  padding:52px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding-bottom:38px;
}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}}
.site-footer .logo-mark{box-shadow:none;}
.site-footer .logo-text strong{color:#fff;}
.site-footer .logo-text small{color:rgba(255,255,255,.55);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.7);display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col ul a:hover{color:#fff;transform:translateX(2px);}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 26px;
  display:flex;flex-direction:column;gap:8px;
  font-size:13px;color:rgba(255,255,255,.5);
}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:50;
  width:48px;height:48px;border-radius:50%;
  background:#fff;border:1px solid var(--line);
  color:var(--ink-900);
  display:none;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease,color .2s ease,opacity .2s ease;
}
.to-top:hover{transform:translateY(-3px);border-color:var(--brand-600);color:var(--brand-700);}
@media(min-width:1024px){.to-top{display:flex;opacity:0;pointer-events:none;}}
@media(min-width:1024px){.to-top.is-show{opacity:1;pointer-events:auto;}}

/* ---------- 响应式导航 ---------- */
@media(max-width:1023px){
  .nav-actions .nav-link{display:none;}
  .nav-actions .nav-cta{display:none;}
  .burger{display:inline-flex;}
  .nav-wrap{flex-wrap:wrap;gap:12px;}
  .logo{order:1;}
  .nav-actions{order:2;margin-left:auto;}
  .search-center{order:3;width:100%;flex-basis:100%;align-items:stretch;}
  .search-form{max-width:none;}
  .hot-chips{justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap;padding-bottom:2px;scrollbar-width:none;}
  .hot-chips::-webkit-scrollbar{display:none;}
  .article-title{font-size:26px;}
}
@media(max-width:520px){
  .article-title{font-size:23px;line-height:1.3;}
  .panel{padding:22px 16px;border-radius:20px;}
  .prose{font-size:16px;line-height:1.85;}
  .prose h2{font-size:20px;}
  .prose h3{font-size:17.5px;}
  .cover-wrap img{border-radius:14px;}
  .cta-strip h2{font-size:18px;}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms!important;animation-duration:.001ms!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --brand-600:#FF4D1C;
  --brand-700:#E13A0B;
  --brand-100:#FFE7DE;
  --accent-500:#12D6A2;
  --accent-2:#FFD34E;
  --ink-900:#12151A;
  --ink-700:#2A2F38;
  --ink-500:#5C636E;
  --line:#E6E2DA;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --soft:#F1EEE7;
  --grad-brand:linear-gradient(120deg,#FF4D1C 0%,#FF2D6F 100%);
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:14px;
  --shadow-1:0 8px 24px -12px rgba(18,21,26,.18);
  --shadow-2:0 18px 40px -16px rgba(255,77,28,.32);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Barlow",ui-sans-serif,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;background:var(--bg);color:var(--ink-700);
  font-family:var(--font-cn);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media(min-width:1280px){.container{padding-left:32px;padding-right:32px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);box-shadow:0 2px 10px -6px rgba(18,21,26,.25);
}
.nav-wrap{display:flex;align-items:center;gap:18px;padding-top:12px;padding-bottom:12px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:44px;height:44px;border-radius:14px;background:var(--grad-brand);color:#fff;
  font-family:var(--font-num);font-weight:800;font-size:17px;letter-spacing:.02em;
  display:flex;align-items:center;justify-content:center;box-shadow:0 8px 18px -10px rgba(255,77,28,.9);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text strong{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em}
.logo-text small{font-size:11px;color:var(--ink-500);letter-spacing:.06em;margin-top:2px}
.search-center{flex:1 1 320px;max-width:520px;min-width:220px}
.search-form{
  display:flex;align-items:center;gap:8px;height:46px;padding:0 6px 0 14px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  color:var(--ink-500);transition:border-color .2s,box-shadow .2s;
}
.search-form:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(255,77,28,.12)}
.search-form svg{flex:0 0 auto}
.search-form input{
  flex:1 1 auto;min-width:0;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--ink-900);font-family:inherit;
}
.search-form input::placeholder{color:#9aa0a8}
.search-form button{
  flex:0 0 auto;height:36px;padding:0 18px;border:0;border-radius:999px;cursor:pointer;
  background:var(--grad-brand);background-size:150% 100%;color:#fff;font-size:14px;font-weight:700;
  transition:background-position .3s,filter .3s,transform .15s;
}
.search-form button:hover{background-position:45% 0;filter:brightness(1.04)}
.search-form button:active{transform:scale(.97)}
.hot-chips{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap}
.chip{
  display:inline-block;font-size:13px;line-height:1;padding:7px 12px;border-radius:999px;
  background:var(--soft);color:var(--ink-500);transition:background .2s,color .2s;
}
.chip:hover{background:var(--brand-100);color:var(--brand-700)}
.nav-actions{display:flex;align-items:center;gap:16px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-700);padding:6px 0;
  transition:color .2s;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .25s;
}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand-700)}
.nav-link.active::after{transform:scaleX(1)}
.burger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;background:var(--surface);
  color:var(--ink-900);cursor:pointer;transition:border-color .2s,color .2s;
}
.burger:hover{border-color:var(--brand-600);color:var(--brand-700)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;transition:transform .15s,box-shadow .25s,background-position .3s,filter .3s,background .2s,color .2s,border-color .2s;
}
.btn:active{transform:scale(.98)}
.btn-primary{
  background-image:var(--grad-brand);background-size:150% 100%;background-position:0 0;
  color:#fff;box-shadow:0 12px 26px -14px rgba(255,77,28,.9);
}
.btn-primary:hover{background-position:45% 0;filter:brightness(1.04);box-shadow:var(--shadow-2)}
.btn-outline{background:var(--surface);border-color:var(--line);color:var(--ink-900)}
.btn-outline:hover{border-color:var(--brand-600);color:var(--brand-700)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.nav-cta{height:44px;padding:0 20px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand-700);font-size:14px}
.link-arrow span{transition:transform .2s}
.link-arrow:hover span{transform:translateX(3px)}

/* mobile drawer */
.mobile-drawer{
  position:fixed;inset:0 0 0 auto;width:min(320px,86vw);z-index:120;
  background:var(--surface);box-shadow:-20px 0 40px -20px rgba(18,21,26,.4);
  transform:translateX(102%);transition:transform .28s ease;padding:22px 20px 32px;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,21,26,.45);z-index:110;
  opacity:0;pointer-events:none;transition:opacity .28s;
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  cursor:pointer;color:var(--ink-900);font-size:18px;line-height:1;
}
.drawer-title{font-size:13px;font-weight:700;color:var(--ink-500);letter-spacing:.08em;margin:18px 0 10px}
.drawer-list{display:flex;flex-direction:column;gap:4px}
.drawer-list a{display:block;padding:11px 12px;border-radius:12px;font-size:15px;font-weight:600;color:var(--ink-700)}
.drawer-list a:hover,.drawer-list a.active{background:var(--brand-100);color:var(--brand-700)}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px}
.drawer-cta{width:100%;margin-top:20px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:#14171C;
  padding:52px 0 60px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(115deg,rgba(20,23,28,.94) 0%,rgba(20,23,28,.78) 46%,rgba(27,42,37,.66) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(420px 280px at 12% 18%,rgba(255,77,28,.22),transparent 70%),
    radial-gradient(380px 260px at 88% 82%,rgba(18,214,162,.18),transparent 70%);
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:44px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  padding:7px 14px;border-radius:999px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.18);color:#fff;letter-spacing:.04em;
}
.eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--accent-500);display:inline-block;box-shadow:0 0 0 0 rgba(18,214,162,.7);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(18,214,162,.6)}70%{box-shadow:0 0 0 10px rgba(18,214,162,0)}100%{box-shadow:0 0 0 0 rgba(18,214,162,0)}}
.hero h1{
  font-size:32px;line-height:1.16;font-weight:800;letter-spacing:-.02em;
  margin:16px 0 12px;color:#fff;
}
@media(min-width:768px){.hero h1{font-size:42px}}
@media(min-width:1280px){.hero h1{font-size:48px}}
.hero-sub{font-size:16px;color:rgba(255,255,255,.82);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);box-shadow:0 30px 60px -30px rgba(0,0,0,.8)}
.hero-media .float-card{
  position:absolute;right:14px;bottom:-18px;background:rgba(255,255,255,.96);color:var(--ink-900);
  border-radius:16px;padding:12px 16px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:2px;
}
.float-card b{font-family:var(--font-num);font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand-700)}
.float-card span{font-size:12px;color:var(--ink-500)}

/* breadcrumb */
.crumb-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.crumb{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--ink-500);padding:12px 0;overflow-x:auto;white-space:nowrap}
.crumb a:hover{color:var(--brand-700)}
.crumb .sep{color:#c9c4ba}
.crumb .now{color:var(--ink-900);font-weight:600}

/* badges */
.stat-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.stat{
  display:flex;flex-direction:column;gap:2px;padding:12px 18px;border-radius:16px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);
}
.stat b{font-family:var(--font-num);font-size:26px;font-weight:800;line-height:1.1;color:var(--accent-500);font-variant-numeric:tabular-nums}
.stat span{font-size:12.5px;color:rgba(255,255,255,.75)}
.stat-light{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-1)}
.stat-light b{color:var(--brand-600)}
.stat-light span{color:var(--ink-500)}

/* anchor nav */
.anchor-bar{
  position:sticky;top:70px;z-index:60;background:rgba(247,245,240,.96);
  border-bottom:1px solid var(--line);backdrop-filter:none;
}
.anchor-scroll{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none}
.anchor-scroll::-webkit-scrollbar{display:none}
.anchor-pill{
  flex:0 0 auto;font-size:14px;font-weight:600;color:var(--ink-700);
  padding:9px 18px;border-radius:999px;background:var(--surface);border:1px solid var(--line);
  transition:all .2s;white-space:nowrap;
}
.anchor-pill:hover{border-color:var(--brand-600);color:var(--brand-700)}
.anchor-pill.on{background:var(--ink-900);color:#fff;border-color:var(--ink-900)}

/* sections */
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:76px 0}}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head h2{
  position:relative;font-size:24px;line-height:1.3;font-weight:800;color:var(--ink-900);
  letter-spacing:-.01em;padding-left:16px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:3px;background:var(--grad-brand);
}
@media(min-width:768px){.sec-head h2{font-size:32px;padding-left:20px}}
.sec-head p{margin-top:12px;font-size:15px;color:var(--ink-500);max-width:680px}

/* steps */
.steps{display:grid;grid-template-columns:1fr;gap:18px;position:relative}
@media(min-width:768px){.steps{grid-template-columns:repeat(2,1fr);gap:22px}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px 22px;box-shadow:var(--shadow-1);transition:transform .3s,box-shadow .3s,border-color .3s;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#f5c7b7}
.step-num{
  font-family:var(--font-num);font-size:34px;font-weight:800;line-height:1;
  color:var(--brand-600);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.step-icon{
  width:42px;height:42px;border-radius:12px;background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;margin:14px 0 12px;
}
.step h3{font-size:18px;font-weight:700;color:var(--ink-900);margin-bottom:6px}
.step p{font-size:14.5px;color:var(--ink-500);line-height:1.75}
.step-line{
  height:2px;border-radius:2px;margin-top:16px;
  background-image:linear-gradient(90deg,var(--brand-600) 0 40%,transparent 40% 100%);
  background-size:12px 2px;background-repeat:repeat-x;opacity:.45;
}

/* live cards */
.live-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:640px){.live-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.live-grid{grid-template-columns:repeat(3,1fr)}}
.live-card{
  background:linear-gradient(180deg,#171a20 0%,#1B2A25 100%);
  border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-md);overflow:hidden;
  box-shadow:0 16px 34px -22px rgba(18,21,26,.8);
  transition:transform .3s,box-shadow .3s;
}
.live-card:hover{transform:translateY(-4px);box-shadow:0 26px 48px -24px rgba(255,77,28,.5)}
.live-thumb{position:relative;overflow:hidden}
.live-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease;opacity:.9}
.live-card:hover .live-thumb img{transform:scale(1.04)}
.live-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,21,26,.15) 0%,rgba(18,21,26,.72) 100%)}
.live-badge{
  position:absolute;top:12px;left:12px;z-index:2;display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;padding:6px 11px;border-radius:999px;letter-spacing:.02em;
  background:rgba(18,214,162,.16);color:#0EE3AB;border:1px solid rgba(18,214,162,.45);
}
.live-badge i{width:6px;height:6px;border-radius:50%;background:#0EE3AB;animation:pulse 1.8s infinite}
.badge-soon{background:rgba(255,211,78,.16);color:var(--accent-2);border-color:rgba(255,211,78,.45)}
.badge-soon i{background:var(--accent-2);animation:none}
.badge-replay{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.32)}
.badge-replay i{background:#fff;animation:none}
.live-body{padding:16px 18px 18px}
.live-kicker{font-size:12px;color:rgba(255,255,255,.6);letter-spacing:.06em}
.live-body h3{font-size:16.5px;font-weight:700;color:#fff;margin:6px 0 12px;line-height:1.5}
.live-meta{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-family:var(--font-num);font-size:13px;color:rgba(255,255,255,.72);
  border-top:1px solid rgba(255,255,255,.1);padding-top:12px;font-variant-numeric:tabular-nums;
}
.live-meta .t{color:#fff;font-weight:700}

/* feature blocks */
.feature{display:grid;grid-template-columns:1fr;gap:26px;align-items:center}
@media(min-width:1024px){.feature{grid-template-columns:6fr 6fr;gap:48px}}
.feature + .feature{margin-top:48px}
@media(min-width:1024px){.feature + .feature{margin-top:72px}}
.feature.rev .feature-text{order:2}
@media(min-width:1024px){.feature.rev .feature-img{order:2}}
.feature-img img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-1)}
.feature-text h3{font-size:20px;font-weight:800;color:var(--ink-900);margin-bottom:10px}
@media(min-width:768px){.feature-text h3{font-size:24px}}
.feature-text > p{font-size:15.5px;color:var(--ink-700);margin-bottom:16px}
.check-list{display:flex;flex-direction:column;gap:10px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-700)}
.check-list li svg{flex:0 0 auto;margin-top:5px;color:var(--accent-500)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  font-size:12.5px;font-weight:600;padding:6px 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);
}
.tag.neutral{background:var(--soft);color:var(--ink-500)}

/* faq */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:1024px){.faq-wrap{grid-template-columns:4fr 8fr;gap:40px;align-items:start}}
.faq-aside h2{font-size:24px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em}
@media(min-width:768px){.faq-aside h2{font-size:32px}}
.faq-aside p{margin-top:12px;font-size:15px;color:var(--ink-500)}
.faq-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:700;color:var(--ink-900);transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-700)}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:8px;border:1.5px solid var(--brand-600);
  color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-size:16px;
  line-height:1;transition:transform .22s ease,background .22s,color .22s;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--brand-600);color:#fff}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-700)}

/* cta band */
.cta-band{position:relative;overflow:hidden;border-radius:var(--radius-lg);padding:34px 26px;color:#fff;background:#14171C}
@media(min-width:1024px){.cta-band{padding:44px 46px}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(520px 300px at 8% 10%,rgba(255,77,28,.34),transparent 68%),
    radial-gradient(420px 280px at 92% 90%,rgba(255,45,111,.26),transparent 70%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-direction:column;gap:22px}
@media(min-width:1024px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between}}
.cta-inner h2{font-size:24px;font-weight:800;color:#fff;letter-spacing:-.01em}
@media(min-width:768px){.cta-inner h2{font-size:30px}}
.cta-inner p{margin-top:8px;font-size:15px;color:rgba(255,255,255,.78);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* footer */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);margin-top:64px;padding:52px 0 0}
@media(min-width:1024px){.site-footer{padding-top:64px}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:36px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}}
.footer-brand .logo-mark{box-shadow:none}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text small{color:rgba(255,255,255,.55)}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s,transform .2s;display:inline-block}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-col p{font-size:14px;color:rgba(255,255,255,.6)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 24px;display:flex;
  flex-direction:column;gap:8px;font-size:13px;color:rgba(255,255,255,.5);
}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}

/* back top */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;
  background:#fff;color:var(--ink-900);border:1px solid var(--line);box-shadow:var(--shadow-1);
  display:none;align-items:center;justify-content:center;cursor:pointer;z-index:70;
  transition:transform .2s,border-color .2s,color .2s;
}
.to-top:hover{border-color:var(--brand-600);color:var(--brand-700);transform:translateY(-2px)}
@media(min-width:1024px){.to-top{display:flex}}
.to-top.show{opacity:1}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --brand-600:#FF4D1C;
  --brand-700:#E13A0B;
  --brand-100:#FFE7DE;
  --accent-500:#12D6A2;
  --accent-2:#FFD34E;
  --ok:#0B8F6C;
  --ink-900:#12151A;
  --ink-700:#2A2F38;
  --ink-500:#5C636E;
  --line:#E6E2DA;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --soft:#F1EEE7;
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:16px;
  --radius-xs:12px;
  --shadow-rest:0 8px 24px -12px rgba(18,21,26,.18);
  --shadow-hover:0 18px 40px -16px rgba(255,77,28,.32);
  --grad-brand:linear-gradient(120deg,#FF4D1C 0%,#FF2D6F 100%);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
.site-body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
body .container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){body .container{padding-left:24px;padding-right:24px}}
@media(min-width:1280px){body .container{padding-left:32px;padding-right:32px}}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;white-space:nowrap;cursor:pointer;
  transition:transform .16s ease,box-shadow .24s ease,filter .24s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 12px 26px -16px rgba(255,45,111,.95)}
.btn-primary:hover{filter:brightness(1.05);box-shadow:var(--shadow-hover);transform:translateY(-1px)}
.btn-primary:active{transform:scale(.98)}
.btn-line{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-line:hover{border-color:var(--brand-600);color:var(--brand-700)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-block{width:100%}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent-500);outline-offset:2px;
}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--brand-700);transition:color .2s}
.link-arrow span{transition:transform .2s}
.link-arrow:hover span{transform:translateX(3px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 12px -8px rgba(18,21,26,.35);
  transition:box-shadow .2s ease;
}
.site-header.is-compact{box-shadow:0 6px 20px -14px rgba(18,21,26,.5)}
.nav-wrap{
  display:flex;align-items:center;gap:24px;
  padding-top:12px;padding-bottom:12px;
  transition:padding .25s ease;
}
.site-header.is-compact .nav-wrap{padding-top:6px;padding-bottom:6px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:42px;height:42px;border-radius:12px;background:var(--grad-brand);
  color:#fff;font-weight:800;font-size:15px;display:grid;place-items:center;
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;
  box-shadow:0 8px 18px -12px rgba(255,45,111,.95);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:16px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em}
.logo-text small{font-size:11px;color:var(--ink-500);letter-spacing:.06em;margin-top:2px}
.search-center{flex:1 1 auto;max-width:520px;margin:0 auto;min-width:0}
.search-form{
  display:flex;align-items:center;gap:8px;height:46px;
  padding:0 6px 0 14px;background:#fff;border:1px solid var(--line);
  border-radius:999px;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(255,77,28,.12)}
.search-form svg{color:var(--ink-500);flex:0 0 auto}
.search-form input{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;
  font-family:inherit;font-size:14px;color:var(--ink-900);outline:none;
}
.search-form input::placeholder{color:#9aa0a8}
.search-form button{
  flex:0 0 auto;height:34px;padding:0 18px;border:0;border-radius:999px;
  background:var(--grad-brand);color:#fff;font-size:14px;font-weight:700;cursor:pointer;
  transition:filter .2s ease,transform .15s ease;
}
.search-form button:hover{filter:brightness(1.06)}
.search-form button:active{transform:scale(.97)}
.hot-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.chip{
  font-size:13px;line-height:1;padding:6px 11px;border-radius:999px;
  background:var(--soft);color:var(--ink-500);transition:background .2s ease,color .2s ease;
}
.chip:hover{background:var(--brand-100);color:var(--brand-700)}
.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.nav-link{
  font-size:14px;font-weight:600;color:var(--ink-700);white-space:nowrap;
  padding:6px 0;border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.nav-link:hover{color:var(--brand-700);border-bottom-color:var(--brand-600)}
.nav-link.active{color:var(--brand-700);border-bottom-color:var(--brand-600)}
.nav-cta{height:44px;padding:0 20px;font-size:14px}
.burger{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink-900);cursor:pointer;
}
.burger:hover{border-color:var(--brand-600);color:var(--brand-700)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(18,21,26,.5);
  opacity:0;pointer-events:none;transition:opacity .28s ease;
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;z-index:90;height:100%;width:min(310px,86vw);
  background:#fff;padding:20px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s ease;
  box-shadow:-24px 0 48px -24px rgba(18,21,26,.45);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:15px;font-weight:800;color:var(--ink-900)}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:#fff;font-size:22px;line-height:1;color:var(--ink-700);cursor:pointer;
}
.drawer-close:hover{border-color:var(--brand-600);color:var(--brand-700)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
.drawer-nav a{
  padding:12px 14px;border-radius:12px;font-size:15px;font-weight:600;color:var(--ink-700);
  transition:background .2s ease,color .2s ease;
}
.drawer-nav a:hover{background:var(--soft);color:var(--brand-700)}
.drawer-nav a.active{background:var(--brand-100);color:var(--brand-700)}

/* ---------- Hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:#14171C;color:#fff;isolation:isolate}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(circle at 18% 22%,rgba(255,77,28,.24),transparent 55%),
    radial-gradient(circle at 82% 72%,rgba(18,214,162,.18),transparent 55%),
    linear-gradient(120deg,rgba(18,21,26,.95) 0%,rgba(22,30,27,.88) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.hero-inner{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding-top:48px;padding-bottom:48px;
}
@media(min-width:1024px){
  .hero-inner{grid-template-columns:7fr 5fr;align-items:center;gap:48px;padding-top:64px;padding-bottom:64px}
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.12em;
  color:#5CF0C6;text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:#5CF0C6;border-radius:2px}
.hero-copy h1{
  font-size:32px;line-height:1.18;font-weight:800;letter-spacing:-.02em;color:#fff;
}
@media(min-width:768px){.hero-copy h1{font-size:42px}}
@media(min-width:1024px){.hero-copy h1{font-size:48px}}
.hero-sub{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.8);max-width:34em}
@media(min-width:768px){.hero-sub{font-size:16px}}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:26px}
.hero-actions .link-arrow{color:#5CF0C6}
.hero-actions .link-arrow:hover{color:#fff}
.stat-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.stat-badge{
  display:flex;align-items:baseline;gap:8px;padding:10px 16px;border-radius:14px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
}
.stat-badge strong{font-size:26px;font-weight:800;line-height:1;color:#5CF0C6;font-variant-numeric:tabular-nums}
.stat-badge span{font-size:13px;color:rgba(255,255,255,.8)}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.14);box-shadow:0 24px 48px -28px rgba(0,0,0,.8)}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,21,26,0) 45%,rgba(18,21,26,.72) 100%);
}
.hero-tip{
  position:absolute;left:16px;bottom:16px;z-index:2;font-size:13px;
  padding:6px 13px;border-radius:999px;color:#fff;background:rgba(18,21,26,.62);
  border:1px solid rgba(255,255,255,.18);
}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb{
  display:flex;align-items:center;gap:8px;overflow-x:auto;white-space:nowrap;
  padding:12px 0;font-size:13px;color:var(--ink-500);
}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .sep{color:#c3bfb6}
.breadcrumb .current{color:var(--ink-900);font-weight:600}

/* ---------- 锚点条 ---------- */
.anchor-bar{background:var(--bg);border-bottom:1px solid var(--line)}
.anchor-inner{
  display:flex;gap:10px;overflow-x:auto;padding:12px 0;
  scrollbar-width:none;
}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-pill{
  flex:0 0 auto;font-size:14px;font-weight:600;color:var(--ink-700);
  padding:7px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.anchor-pill:hover{border-color:var(--brand-600);color:var(--brand-700);background:var(--brand-100)}
@media(min-width:1024px){
  .anchor-bar{position:sticky;top:104px;z-index:40;background:rgba(247,245,240,.96);box-shadow:0 8px 18px -18px rgba(18,21,26,.6)}
}

/* ---------- 板块 ---------- */
.section{padding-top:48px;padding-bottom:48px}
@media(min-width:1024px){.section{padding-top:76px;padding-bottom:76px}}
.section-white{background:#fff}
.section-head{max-width:720px;margin-bottom:28px}
.section-head h2{
  position:relative;font-size:24px;line-height:1.3;font-weight:800;color:var(--ink-900);
  padding-left:14px;letter-spacing:-.01em;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand-600);
}
@media(min-width:768px){.section-head h2{font-size:32px}}
.section-head p{margin-top:12px;font-size:15px;color:var(--ink-500);line-height:1.8}

/* ---------- 双栏布局 ---------- */
.layout{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.layout{grid-template-columns:280px minmax(0,1fr);gap:48px}}
.toc{display:none}
@media(min-width:1024px){
  .toc{
    display:block;position:sticky;top:190px;align-self:start;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
    padding:20px;box-shadow:var(--shadow-rest);
  }
}
.toc-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink-500);margin-bottom:12px}
.toc-link{
  display:block;padding:9px 12px;font-size:14px;color:var(--ink-700);border-radius:10px;
  border-left:3px solid transparent;transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.toc-link:hover{background:var(--soft);color:var(--brand-700)}
.toc-link.is-active{background:var(--brand-100);color:var(--brand-700);border-left-color:var(--brand-600);font-weight:700}
.content-col{display:flex;flex-direction:column;gap:44px;min-width:0}

/* ---------- 准备清单 ---------- */
.prep-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px;box-shadow:var(--shadow-rest);
}
@media(min-width:768px){.prep-card{padding:28px}}
.check-list{display:grid;gap:14px;margin-top:18px}
@media(min-width:768px){.check-list{grid-template-columns:1fr 1fr;gap:16px 28px}}
.check-list li{display:flex;gap:12px;font-size:15px;line-height:1.75;color:var(--ink-700)}
.check-list li::before{
  content:"";flex:0 0 auto;width:20px;height:20px;margin-top:5px;border-radius:6px;
  background:rgba(11,143,108,.12);
  background-image:linear-gradient(135deg,transparent 0 0);
  position:relative;
}
.check-list li{position:relative}
.check-list li .txt::before{content:none}
.tick{
  flex:0 0 auto;width:20px;height:20px;margin-top:5px;border-radius:6px;
  background:rgba(11,143,108,.12);color:var(--ok);display:grid;place-items:center;
  font-size:12px;font-weight:800;
}

/* ---------- 步骤卡 ---------- */
.step-list{display:flex;flex-direction:column;gap:20px}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px;box-shadow:var(--shadow-rest);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
@media(min-width:768px){.step-card{padding:26px;display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:center}}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#ffd2c2}
.step-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.step-num{
  flex:0 0 auto;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;font-size:15px;font-weight:800;
  background:var(--brand-100);color:var(--brand-700);font-variant-numeric:tabular-nums;
}
.step-card h3{font-size:18px;font-weight:700;color:var(--ink-900);line-height:1.4}
@media(min-width:768px){.step-card h3{font-size:20px}}
.point-list{display:grid;gap:9px;margin-top:14px}
.point-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.75;color:var(--ink-700)}
.point-list li::before{
  content:"";flex:0 0 auto;width:7px;height:7px;margin-top:9px;border-radius:50%;
  background:var(--brand-600);
}
.step-media{border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line);background:var(--soft)}
.step-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.step-card:hover .step-media img{transform:scale(1.04)}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;gap:14px;padding:18px 20px;border-radius:var(--radius-sm);
  background:#FFF4EE;border:1px solid #FFD9C6;
}
.notice-icon{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--brand-600);color:#fff;font-weight:800;font-size:16px;
}
.notice-body strong{display:block;font-size:15px;font-weight:800;color:var(--ink-900);margin-bottom:4px}
.notice-body p{font-size:14.5px;line-height:1.8;color:var(--ink-700)}

/* ---------- 失败排查 ---------- */
.issue-list{display:grid;gap:14px}
.issue-item{
  display:flex;gap:14px;padding:18px 20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-sm);transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.issue-item:hover{border-color:#ffd2c2;transform:translateY(-2px);box-shadow:var(--shadow-rest)}
.issue-badge{
  flex:0 0 auto;width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:var(--soft);color:var(--brand-700);font-weight:800;font-size:14px;
  font-variant-numeric:tabular-nums;
}
.issue-item h3{font-size:16px;font-weight:700;color:var(--ink-900);margin-bottom:4px}
.issue-item p{font-size:14.5px;line-height:1.75;color:var(--ink-500)}

/* ---------- 问题分类入口 ---------- */
.topic-grid{display:grid;gap:16px}
@media(min-width:768px){.topic-grid{grid-template-columns:1fr 1fr}}
.topic-card{
  display:flex;gap:16px;padding:22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-md);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#ffd2c2}
.topic-icon{
  flex:0 0 auto;width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand-700);
}
.topic-card h3{font-size:17px;font-weight:700;color:var(--ink-900);margin-bottom:4px}
.topic-card p{font-size:14px;line-height:1.7;color:var(--ink-500)}
.topic-card .go{margin-top:10px;font-size:13px;font-weight:700;color:var(--brand-700)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr;gap:28px}
@media(min-width:1024px){.faq-layout{grid-template-columns:4fr 8fr;gap:48px;align-items:start}}
.faq-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-rest)}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;gap:14px;width:100%;padding:18px 20px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:700;color:var(--ink-900);line-height:1.6;
  transition:background .2s ease,color .2s ease;
}
.faq-q:hover{background:#FBF8F3;color:var(--brand-700)}
.faq-icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:7px;border:1.5px solid var(--brand-600);
  color:var(--brand-600);display:grid;place-items:center;font-size:15px;line-height:1;font-weight:700;
  transition:transform .2s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-item.open .faq-q{color:var(--brand-700)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a p{padding:0 20px 20px 58px;font-size:15px;line-height:1.85;color:var(--ink-700)}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  padding:32px 24px;color:#fff;
  background:linear-gradient(120deg,#FF4D1C 0%,#FF2D6F 100%);
  box-shadow:0 24px 48px -28px rgba(255,45,111,.85);
}
@media(min-width:768px){.cta-band{padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px}}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.28),transparent 70%);pointer-events:none;
}
.cta-band h2{position:relative;z-index:1;font-size:22px;font-weight:800;line-height:1.35;color:#fff}
@media(min-width:768px){.cta-band h2{font-size:28px}}
.cta-band p{position:relative;z-index:1;margin-top:8px;font-size:15px;color:rgba(255,255,255,.9)}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
@media(min-width:768px){.cta-actions{margin-top:0;flex:0 0 auto}}
.cta-band .btn-line{background:#fff;border-color:#fff;color:var(--brand-700)}
.cta-band .btn-line:hover{background:#FFF1EB;border-color:#FFF1EB;color:var(--brand-700)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.18)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);margin-top:8px}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding-top:48px;padding-bottom:36px;
}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px 28px}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;padding-top:64px}}
.site-footer .logo-mark{box-shadow:none}
.site-footer .logo-text strong{color:#fff}
.site-footer .logo-text small{color:rgba(255,255,255,.55)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:34em}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.52);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:48px;height:48px;border-radius:50%;background:#fff;color:var(--ink-900);
  border:1px solid var(--line);box-shadow:var(--shadow-rest);cursor:pointer;
  display:none;align-items:center;justify-content:center;font-size:18px;font-weight:700;
  transition:transform .2s ease,box-shadow .2s ease,color .2s ease;
}
.to-top.show{display:flex}
.to-top:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);color:var(--brand-700)}

/* ---------- 响应式导航 ---------- */
@media(max-width:1023px){
  .nav-wrap{flex-wrap:wrap;gap:12px;row-gap:10px}
  .logo{order:1;flex:1 1 auto}
  .nav-actions{order:2;gap:10px}
  .nav-actions .nav-link,.nav-actions .nav-cta{display:none}
  .burger{display:inline-flex}
  .search-center{order:3;flex:1 0 100%;max-width:none;margin:0}
  .search-center .hot-chips{display:none}
  .toc{display:none}
}
@media(min-width:1024px){
  .drawer,.drawer-mask{display:none}
}
@media(prefers-reduced-motion:reduce){
  *{transition-duration:.001ms!important;animation-duration:.001ms!important}
  .step-card:hover,.topic-card:hover,.issue-item:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --brand-600:#FF4D1C;
  --brand-700:#E13A0B;
  --brand-100:#FFE7DE;
  --accent-500:#12D6A2;
  --accent-2:#FFD34E;
  --ink-900:#12151A;
  --ink-700:#2A2F38;
  --ink-500:#5C636E;
  --line:#E6E2DA;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --soft:#F1EEE7;
  --grad:linear-gradient(120deg,#FF4D1C 0%,#FF2D6F 100%);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --shadow-1:0 8px 24px -12px rgba(18,21,26,.18);
  --shadow-2:0 18px 40px -16px rgba(255,77,28,.32);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:130px}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{color:var(--ink-900);font-family:var(--font-cn)}
input,select,textarea{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}
body .container{width:100%;max-width:1200px;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}
@media(min-width:640px){body .container{padding-left:24px;padding-right:24px}}
@media(min-width:1024px){body .container{padding-left:32px;padding-right:32px}}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);box-shadow:0 6px 20px -16px rgba(18,21,26,.5)}
body .nav-wrap{display:flex;align-items:center;gap:24px;padding-top:12px;padding-bottom:12px;min-height:78px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:14px;background:var(--grad);color:#fff;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:800;font-size:17px;letter-spacing:.02em;box-shadow:0 10px 20px -12px rgba(255,45,111,.9)}
.logo-text{display:flex;flex-direction:column;line-height:1.18}
.logo-text strong{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.logo-text small{font-size:11px;color:var(--ink-500);letter-spacing:.08em;white-space:nowrap}
.search-center{flex:1 1 auto;min-width:0}
.search-form{display:flex;align-items:center;gap:8px;height:46px;max-width:520px;width:100%;margin:0 auto;padding:0 6px 0 16px;border-radius:999px;background:#F4F1EA;border:1px solid var(--line);transition:background .2s,border-color .2s,box-shadow .2s}
.search-form:focus-within{background:#fff;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(255,77,28,.12)}
.search-form svg{color:var(--ink-500);flex-shrink:0}
.search-form input{flex:1;min-width:0;height:100%;border:0;background:transparent;font-size:14px;color:var(--ink-900);outline:none}
.search-form input::placeholder{color:#9A9589}
.search-form button{height:36px;padding:0 18px;border:0;border-radius:999px;background:var(--grad);color:#fff;font-size:14px;font-weight:700;transition:filter .2s,transform .2s}
.search-form button:hover{filter:brightness(1.05)}
.search-form button:active{transform:scale(.97)}
.hot-chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:8px}
.chip{font-size:13px;color:var(--ink-500);background:var(--soft);padding:3px 11px;border-radius:999px;transition:background .2s,color .2s}
.chip:hover{background:var(--brand-100);color:var(--brand-700)}
.nav-actions{display:flex;align-items:center;gap:18px;flex-shrink:0}
.nav-link{position:relative;font-size:14.5px;font-weight:600;color:var(--ink-700);padding:6px 0;white-space:nowrap;transition:color .2s}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand-700)}
.nav-link.active::after{transform:scaleX(1)}
.burger{display:none;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--ink-900);transition:border-color .2s,color .2s}
.burger:hover{border-color:var(--brand-600);color:var(--brand-700)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;font-size:15px;font-weight:700;line-height:1;transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s,filter .2s}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px -16px rgba(255,45,111,.85)}
.btn-primary:hover{filter:brightness(1.04);box-shadow:var(--shadow-2)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-outline:hover{border-color:var(--brand-600);color:var(--brand-700)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.75)}
.btn-sm{height:44px;font-size:14px;width:100%}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:#14171C;color:#fff}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(104deg,rgba(18,21,26,.95) 0%,rgba(18,21,26,.88) 52%,rgba(18,21,26,.70) 100%),url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center}
.hero-glow{position:absolute;inset:0;background:radial-gradient(circle at 84% 14%,rgba(255,77,28,.22),transparent 56%),radial-gradient(circle at 8% 92%,rgba(18,214,162,.16),transparent 52%)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding-top:60px;padding-bottom:56px}
.hero-tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;background:rgba(18,214,162,.16);color:#7CF0CE;font-size:12.5px;font-weight:700;letter-spacing:.06em;margin-bottom:18px}
.hero h1{font-size:48px;line-height:1.15;letter-spacing:-.02em;font-weight:800;color:#fff;max-width:14em}
.hero-sub{margin-top:16px;font-size:16px;line-height:1.7;color:rgba(255,255,255,.76);max-width:30em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.stat-row{display:flex;flex-wrap:wrap;gap:0;margin-top:34px}
.stat{display:flex;flex-direction:column;padding-right:26px;margin-right:26px;border-right:1px solid rgba(255,255,255,.16)}
.stat:last-child{padding-right:0;margin-right:0;border-right:0}
.stat strong{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:34px;font-weight:800;line-height:1.1;color:var(--accent-500)}
.stat span{font-size:13px;color:rgba(255,255,255,.62);margin-top:4px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:0 30px 60px -30px rgba(0,0,0,.75)}
.hero-float{position:absolute;right:-6px;bottom:-14px;display:flex;align-items:center;gap:10px;background:#fff;color:var(--ink-900);border-radius:16px;padding:12px 16px;box-shadow:0 20px 40px -22px rgba(0,0,0,.55);min-width:168px}
.hero-float .dot{width:9px;height:9px;border-radius:50%;background:var(--accent-500);box-shadow:0 0 0 4px rgba(18,214,162,.18);flex-shrink:0}
.hero-float strong{display:block;font-size:14px;font-weight:800;line-height:1.2}
.hero-float small{font-size:12px;color:var(--ink-500);line-height:1.3}

/* ============ 面包屑 & 锚点条 ============ */
.crumb-bar{background:var(--bg);border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);padding:14px 0;overflow-x:auto;white-space:nowrap}
.crumb a{color:var(--ink-500);transition:color .2s}
.crumb a:hover{color:var(--brand-700)}
.crumb .current{color:var(--ink-900);font-weight:600}
.anchor-bar{position:sticky;top:78px;z-index:40;background:rgba(247,245,240,.97);border-bottom:1px solid var(--line)}
.anchor-list{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none}
.anchor-list::-webkit-scrollbar{display:none}
.anchor{display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;color:var(--ink-700);white-space:nowrap;transition:background .2s,border-color .2s,color .2s}
.anchor:hover{background:var(--brand-100);border-color:var(--brand-600);color:var(--brand-700)}

/* ============ 通用板块 ============ */
.section{padding-top:56px;padding-bottom:56px}
@media(min-width:768px){.section{padding-top:80px;padding-bottom:80px}}
.section-soft{background:linear-gradient(180deg,#F3EFE6 0%,#F7F5F0 100%)}
.sec-head{max-width:720px;margin-bottom:32px}
.sec-head h2{position:relative;padding-left:18px;font-size:32px;line-height:1.28;font-weight:800;letter-spacing:-.01em;color:var(--ink-900)}
.sec-head h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:5px;border-radius:3px;background:var(--brand-600)}
.sec-head p{padding-left:18px;margin-top:12px;font-size:15px;line-height:1.85;color:var(--ink-500)}

/* ============ 套餐对比 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start}
.plan{position:relative;display:flex;flex-direction:column;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px;box-shadow:var(--shadow-1);transition:transform .3s,box-shadow .3s,border-color .3s}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.plan.featured{border-color:rgba(255,77,28,.55);box-shadow:0 26px 50px -26px rgba(255,77,28,.48)}
.plan.featured::before{content:"";position:absolute;left:0;right:0;top:0;height:6px;border-radius:var(--r-lg) var(--r-lg) 0 0;background:var(--grad)}
.plan-flag{position:absolute;top:-13px;right:18px;background:var(--accent-2);color:#12151A;font-size:12px;font-weight:800;padding:4px 12px;border-radius:999px;letter-spacing:.02em}
.plan-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.plan-head h3{font-size:20px;font-weight:800;color:var(--ink-900)}
.plan-desc{font-size:13px;color:var(--ink-500)}
.plan-price{display:flex;align-items:baseline;gap:4px;margin-top:16px;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:44px;font-weight:800;line-height:1.05;color:var(--ink-900)}
.plan-price .cur{font-size:22px;font-weight:700;color:var(--brand-600)}
.plan-price .unit{font-size:14px;font-weight:600;color:var(--ink-500);margin-left:2px}
.plan-calc{margin-top:6px;font-size:13.5px;color:var(--ink-500)}
.plan-toggle{display:none;align-items:center;justify-content:space-between;width:100%;height:42px;margin-top:18px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:#FBFAF6;font-size:14px;font-weight:600;color:var(--ink-700)}
.plan-toggle::after{content:"+";font-size:18px;color:var(--brand-600);font-weight:700;line-height:1}
.plan-toggle[aria-expanded="true"]::after{content:"−"}
.plan-list{margin-top:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.plan-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;line-height:1.7;color:var(--ink-700)}
.plan-list .tick{flex-shrink:0;width:20px;height:20px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;margin-top:3px}
.plan-list .yes .tick{background:rgba(18,214,162,.16);color:#0E9E78}
.plan-list .no{color:#9A9589}
.plan-list .no .tick{background:#F1EEE7;color:#B4AEA2}
.plan .btn{margin-top:24px}
.plan-note{margin-top:24px;font-size:13.5px;line-height:1.8;color:var(--ink-500)}

/* ============ 权益网格 ============ */
.benefit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.benefit{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px 22px;box-shadow:var(--shadow-1);transition:transform .3s,box-shadow .3s,border-color .3s}
.benefit:nth-child(2n){background:#FBF7F0}
.benefit:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,77,28,.35)}
.benefit-icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:14px;background:var(--brand-100);color:var(--brand-700);margin-bottom:16px}
.benefit:nth-child(2n) .benefit-icon{background:rgba(18,214,162,.14);color:#0E9E78}
.benefit h3{font-size:18px;font-weight:700;color:var(--ink-900);margin-bottom:8px}
.benefit p{font-size:14.5px;line-height:1.8;color:var(--ink-500)}

/* ============ 限时条 ============ */
.deal{position:relative;overflow:hidden;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;border-radius:var(--r-lg);padding:36px 32px;background:radial-gradient(circle at 82% 10%,rgba(255,77,28,.26),transparent 55%),radial-gradient(circle at 10% 90%,rgba(18,214,162,.18),transparent 55%),linear-gradient(150deg,#14171C 0%,#1B2A25 100%);color:#fff}
.deal-tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:rgba(255,211,78,.16);color:var(--accent-2);font-size:12.5px;font-weight:700;letter-spacing:.06em;margin-bottom:14px}
.deal h2{font-size:26px;line-height:1.35;font-weight:800;color:#fff;max-width:22em}
.deal p{margin-top:10px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:34em}
.deal-right{display:flex;flex-direction:column;align-items:flex-end;gap:16px}
.countdown{display:flex;align-items:center;gap:6px}
.cd-num{display:inline-flex;align-items:center;justify-content:center;min-width:56px;height:52px;padding:0 8px;border-radius:12px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.12);font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:26px;font-weight:800;color:var(--accent-500);line-height:1}
.cd-sep{font-size:22px;font-weight:700;color:rgba(255,255,255,.5)}

/* ============ 反馈摘录 ============ */
.fb-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.fb-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:26px 22px 22px;box-shadow:var(--shadow-1);transition:transform .3s,box-shadow .3s}
.fb-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.fb-card::before{content:"“";position:absolute;top:4px;left:18px;font-size:44px;line-height:1;color:var(--brand-100);font-family:Georgia,serif}
.fb-quote{position:relative;font-size:15px;line-height:1.85;color:var(--ink-700);padding-top:14px}
.fb-tag{display:inline-flex;align-items:center;height:26px;padding:0 10px;margin-top:16px;border-radius:999px;background:var(--soft);font-size:12.5px;color:var(--ink-500)}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1fr;gap:32px}
.faq-intro h2{position:relative;padding-left:18px;font-size:32px;line-height:1.28;font-weight:800;color:var(--ink-900)}
.faq-intro h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:5px;border-radius:3px;background:var(--brand-600)}
.faq-intro p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--ink-500);padding-left:18px}
.faq-intro .btn{margin-top:22px;margin-left:18px}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{margin:0}
.faq-btn{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:20px 22px;background:transparent;border:0;text-align:left;font-size:16px;font-weight:700;color:var(--ink-900);line-height:1.6;transition:color .2s,background .2s}
.faq-btn:hover{color:var(--brand-700);background:#FCFAF6}
.faq-icon{position:relative;flex-shrink:0;width:22px;height:22px;border:1.5px solid var(--brand-600);border-radius:6px;transition:transform .25s,background .25s}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:opacity .2s}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand-100)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.9;color:var(--ink-500)}

/* ============ 表单 ============ */
.form-wrap{display:grid;grid-template-columns:1fr;gap:28px;background:var(--soft);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px 24px}
.form-copy h2{font-size:28px;line-height:1.3;font-weight:800;color:var(--ink-900)}
.form-copy>p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--ink-500)}
.form-points{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.form-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;line-height:1.75;color:var(--ink-700)}
.form-points li::before{content:"";flex-shrink:0;width:8px;height:8px;margin-top:9px;border-radius:50%;background:var(--brand-600)}
.form-contact{margin-top:20px;font-size:13.5px;color:var(--ink-500)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px 22px;box-shadow:var(--shadow-1)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px}
.field label .req{color:var(--brand-600);margin-left:2px}
.field input,.field select,.field textarea{width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:#FBFAF6;font-size:14.5px;color:var(--ink-900);transition:border-color .2s,background .2s,box-shadow .2s}
.field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235C636E' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-600);background:#fff;box-shadow:0 0 0 3px rgba(255,77,28,.12)}
.form-submit{width:100%}
.form-tip{margin-top:12px;font-size:13px;line-height:1.7;color:var(--brand-700);min-height:20px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.7);padding-top:56px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:26em}
.site-footer .logo-text strong{color:#fff}
.site-footer .logo-text small{color:rgba(255,255,255,.55)}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62)}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s,transform .2s;display:inline-block}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;font-size:13px;color:rgba(255,255,255,.5)}

/* ============ 抽屉 & 返回顶部 ============ */
.drawer-overlay{position:fixed;inset:0;background:rgba(18,21,26,.5);opacity:0;visibility:hidden;transition:opacity .25s;z-index:90}
.drawer-overlay.show{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(300px,86vw);background:#fff;z-index:95;transform:translateX(102%);transition:transform .28s ease;display:flex;flex-direction:column;box-shadow:-24px 0 48px -28px rgba(0,0,0,.5)}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:15px;font-weight:800;color:var(--ink-900)}
.drawer-close{width:38px;height:38px;border:1px solid var(--line);border-radius:12px;background:#fff;font-size:20px;line-height:1;color:var(--ink-700)}
.drawer-body{display:flex;flex-direction:column;gap:4px;padding:16px 14px;overflow-y:auto}
.drawer-body a{padding:13px 12px;border-radius:12px;font-size:15px;font-weight:600;color:var(--ink-700);transition:background .2s,color .2s}
.drawer-body a:hover{background:var(--soft);color:var(--brand-700)}
.drawer-body a[aria-current="page"]{color:var(--brand-700);background:var(--brand-100)}
.drawer-cta{margin-top:14px;color:#fff!important;background:var(--grad);text-align:center;justify-content:center;display:flex}
.drawer-cta:hover{filter:brightness(1.04);background:var(--grad)!important;color:#fff!important}
.to-top{position:fixed;right:24px;bottom:24px;z-index:70;display:none;align-items:center;justify-content:center;width:48px;height:48px;border-radius:50%;background:#fff;border:1px solid var(--line);color:var(--ink-900);box-shadow:var(--shadow-1);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s,border-color .2s,color .2s}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{border-color:var(--brand-600);color:var(--brand-700)}

/* ============ 响应式 ============ */
@media(min-width:1024px){
  .faq-layout{grid-template-columns:0.85fr 1.15fr;gap:48px}
  .form-wrap{grid-template-columns:0.85fr 1.15fr;padding:40px 36px;gap:40px}
  .to-top{display:flex}
  .plan.featured{transform:translateY(-12px)}
  .plan.featured:hover{transform:translateY(-16px)}
}
@media(max-width:1023px){
  body .nav-wrap{flex-wrap:wrap;gap:12px;min-height:0;padding-top:10px;padding-bottom:10px}
  .search-center{order:3;flex:0 0 100%;width:100%}
  .search-form{margin:0;max-width:none}
  .hot-chips{display:none}
  .nav-actions .nav-link{display:none}
  .nav-actions .nav-cta{display:none}
  .nav-actions{margin-left:auto}
  .burger{display:inline-flex}
  .anchor-bar{position:static;top:auto}
  html{scroll-padding-top:24px}
  .hero-inner{grid-template-columns:1fr;gap:32px;padding-top:44px;padding-bottom:48px}
  .hero h1{font-size:34px;max-width:none}
  .hero-media{max-width:560px}
  .hero-float{right:8px;bottom:-10px}
  .plan-grid{grid-template-columns:1fr;gap:20px}
  .plan.featured{transform:none}
  .benefit-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .fb-grid{grid-template-columns:1fr}
  .deal{grid-template-columns:1fr;padding:28px 22px;gap:22px}
  .deal-right{align-items:center}
  .deal h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:767px){
  .hero h1{font-size:32px}
  .hero-sub{font-size:15px}
  .stat strong{font-size:28px}
  .stat{padding-right:18px;margin-right:18px}
  .sec-head h2,.faq-intro h2{font-size:24px}
  .plan-toggle{display:flex}
  .plan-list{display:none;margin-top:14px}
  .plan-list.open{display:flex}
  .benefit-grid{grid-template-columns:1fr}
  .cd-num{min-width:48px;height:46px;font-size:22px}
  .faq-btn{font-size:15px;padding:16px 16px}
  .faq-a p{padding:0 16px 18px}
  .form-copy h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .btn{height:46px;padding:0 22px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .plan:hover,.benefit:hover,.fb-card:hover{transform:none}
}