/* roulang page: index */
:root{
  --brand:#F4521E;
  --brand-dark:#C93A0E;
  --brand-soft:#FDEDE6;
  --accent:#16C79A;
  --accent-dark:#0FA37F;
  --amber:#FFB020;
  --ink:#14171A;
  --ink-2:#5B6470;
  --bg:#FBF8F5;
  --line:#ECE6E0;
  --radius-card:24px;
  --radius-card-lg:28px;
  --shadow-1:0 1px 2px rgba(20,23,26,.04),0 12px 32px -12px rgba(20,23,26,.18);
  --shadow-2:0 20px 48px -18px rgba(244,82,30,.35);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(244,82,30,.18);border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px}}
@media(min-width:1280px){.container{padding-left:24px;padding-right:24px}}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部条 ---------- */
.topbar{background:linear-gradient(90deg,#101418,#1B2229);color:#D9DEE4;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;flex-wrap:wrap}
.topbar strong{color:var(--amber);font-weight:600}
.topbar-right{display:flex;align-items:center;gap:8px;color:#AEB6BF}
.topbar-right i{color:var(--accent)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,248,245,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:0 8px 28px -18px rgba(20,23,26,.4);
}
.nav-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;height:78px}
.nav-left{display:flex;align-items:center;gap:6px;justify-content:flex-start}
.nav-right{display:flex;align-items:center;gap:6px;justify-content:flex-end}
.nav-link{
  display:inline-flex;align-items:center;height:44px;padding:0 14px;border-radius:999px;
  font-size:15px;color:var(--ink-2);transition:color .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand);background:rgba(244,82,30,.08);font-weight:600;box-shadow:inset 0 -2px 0 var(--brand)}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center}
.brand-mark{
  width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(120deg,var(--brand),#FF8A3D);
  color:#fff;font-size:18px;box-shadow:0 10px 22px -12px rgba(244,82,30,.85);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text b{font-size:19px;font-weight:700;letter-spacing:.02em;color:var(--ink)}
.brand-text span{font-size:11px;color:var(--ink-2);letter-spacing:.16em}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1.5px solid transparent;cursor:pointer;
  padding:14px 28px;font-size:15px;font-weight:600;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:linear-gradient(120deg,var(--brand),#FF8A3D);color:#fff;box-shadow:var(--shadow-2)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.04)}
.btn-ghost{border-color:rgba(244,82,30,.45);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{transform:translateY(-2px);background:#FFF3EC}
.btn-sm{padding:10px 20px;font-size:14px}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:14px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;color:var(--ink);
}
.mobile-panel{
  display:none;border-top:1px solid var(--line);background:#fff;
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;padding:0 20px;font-size:15px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.is-active{color:var(--brand);font-weight:600;background:var(--brand-soft)}
.mobile-panel .mobile-cta{padding:16px 20px}
.mobile-panel .mobile-cta .btn{width:100%}
@media(max-width:900px){
  .nav-grid{grid-template-columns:auto 1fr auto;height:70px}
  .nav-left,.nav-right{display:none}
  .brand{justify-self:start}
  .nav-toggle{display:inline-flex}
}

/* ---------- 通用板块 ---------- */
.section{padding-top:56px;padding-bottom:56px}
@media(min-width:768px){.section{padding-top:72px;padding-bottom:72px}}
@media(min-width:1024px){.section{padding-top:96px;padding-bottom:96px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;padding:6px 14px;
}
.section-title{font-size:clamp(24px,3vw,38px);line-height:1.2;font-weight:700;letter-spacing:.01em;color:var(--ink)}
.section-desc{margin-top:12px;font-size:15px;color:var(--ink-2);max-width:640px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.link-arrow{color:var(--brand);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-arrow i{transition:transform .2s var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{padding-top:48px;padding-bottom:0}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px}}
.hero h1{
  font-size:clamp(30px,4.4vw,54px);line-height:1.12;font-weight:700;letter-spacing:.01em;color:var(--ink);
  margin-top:20px;
}
.hero-sub{margin-top:18px;font-size:clamp(16px,1.6vw,19px);color:var(--ink-2);max-width:560px;line-height:1.75}
.hero-cta{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.hero-badges{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px}
.mini-badge{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px;
}
.mini-badge i{color:var(--accent);font-size:12px}
.hero-visual{position:relative}
.hero-frame{
  position:relative;border-radius:28px;overflow:hidden;
  aspect-ratio:4/5;
  box-shadow:var(--shadow-1);
  background:linear-gradient(150deg,#1B2229,#101418);
}
.hero-frame img{width:100%;height:100%;object-fit:cover;opacity:.92}
.hero-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(244,82,30,.32),rgba(16,20,24,.62) 72%);
}
.float-badge{
  position:absolute;z-index:2;background:rgba(255,255,255,.96);border-radius:18px;
  padding:14px 18px;box-shadow:var(--shadow-1);backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.6);
}
.float-badge .fb-num{font-size:30px;font-weight:700;line-height:1.05;font-variant-numeric:tabular-nums}
.float-badge .fb-label{font-size:12px;color:var(--ink-2);margin-top:2px}
.fb-accent .fb-num{color:var(--accent-dark)}
.fb-amber .fb-num{color:#B57A00}
.badge-a{left:-10px;bottom:64px}
.badge-b{right:-6px;top:56px}
@media(max-width:640px){.badge-a{left:8px;bottom:16px}.badge-b{right:8px;top:16px}.float-badge{padding:10px 14px}.float-badge .fb-num{font-size:24px}}
@media(min-width:1280px){.badge-a{left:-28px}.badge-b{right:-24px}}

/* ---------- 数据条 ---------- */
.stat-strip{
  margin-top:56px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  display:grid;grid-template-columns:repeat(2,1fr);
}
@media(min-width:768px){.stat-strip{grid-template-columns:repeat(4,1fr)}}
.stat-item{padding:26px 20px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:none}
@media(max-width:767px){
  .stat-item:nth-child(2n){border-right:none}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
}
.stat-num{font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.1}
.stat-num em{font-style:normal;font-size:16px;color:var(--brand);margin-left:2px}
.stat-label{margin-top:6px;font-size:13px;color:var(--ink-2)}

/* ---------- 品牌主张条 ---------- */
.pillars{margin-top:8px}
.pillar-row{
  display:flex;gap:12px;overflow-x:auto;padding:6px 2px 14px;
  scrollbar-width:none;-ms-overflow-style:none;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 18px,#000 calc(100% - 18px),transparent);
  mask-image:linear-gradient(90deg,transparent,#000 18px,#000 calc(100% - 18px),transparent);
}
.pillar-row::-webkit-scrollbar{display:none}
.pillar{
  flex:1 0 auto;min-width:180px;display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.pillar:hover{border-color:rgba(244,82,30,.4);box-shadow:var(--shadow-1);transform:translateY(-4px)}
.pillar i{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:15px;
  background:var(--brand-soft);color:var(--brand);
}
.pillar b{font-size:15px;font-weight:600}

/* ---------- 故事 / 理念 ---------- */
.story-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media(min-width:1024px){.story-grid{grid-template-columns:5fr 7fr;gap:56px}}
.story-figure{border-radius:var(--radius-card-lg);overflow:hidden;box-shadow:var(--shadow-1);position:relative}
.story-figure img{width:100%;aspect-ratio:4/5;object-fit:cover}
.story-figure figcaption{
  position:absolute;left:16px;right:16px;bottom:16px;background:rgba(16,20,24,.72);
  color:#fff;font-size:13px;border-radius:14px;padding:10px 14px;backdrop-filter:blur(4px);
}
@media(min-width:1024px){.story-figure{margin-top:48px}}
.timeline{display:flex;flex-direction:column;gap:22px;margin-top:8px}
.tl-item{display:grid;grid-template-columns:64px 1fr;gap:18px;align-items:start}
.tl-num{
  font-size:30px;font-weight:700;line-height:1;color:rgba(244,82,30,.35);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.tl-body h3{font-size:20px;font-weight:600;color:var(--ink)}
.tl-body p{margin-top:8px;font-size:15px;color:var(--ink-2);line-height:1.8}
.tl-body{border-bottom:1px dashed var(--line);padding-bottom:20px}
.tl-item:last-child .tl-body{border-bottom:none;padding-bottom:0}

/* ---------- 精选内容卡 ---------- */
.feature-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:768px){.feature-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.feature-grid{grid-template-columns:1.35fr 1fr;grid-template-rows:repeat(2,minmax(0,1fr))}}
.feature-main{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card-lg);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.feature-main:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);border-color:rgba(244,82,30,.2)}
@media(min-width:1024px){.feature-main{grid-row:span 2}}
.feature-main .fm-media{position:relative}
.feature-main .fm-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.feature-main .fm-body{padding:26px 28px 30px}
.feature-main h3{font-size:24px;font-weight:700;line-height:1.35;margin-top:12px}
.feature-main p{margin-top:12px;font-size:15px;color:var(--ink-2)}
.feature-main .fm-more{margin-top:20px;display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:600;font-size:14px}
.feature-main .fm-more i{transition:transform .2s var(--ease)}
.feature-main:hover .fm-more i{transform:translateX(5px)}
.feature-side{display:grid;gap:24px}
@media(min-width:1024px){.feature-side{grid-template-rows:repeat(2,minmax(0,1fr))}}
.side-card{
  display:grid;grid-template-columns:132px 1fr;gap:18px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.side-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);border-color:rgba(244,82,30,.2)}
.side-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px}
.side-card h3{font-size:17px;font-weight:600;line-height:1.4;margin-top:10px}
.side-card p{margin-top:6px;font-size:13px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
@media(max-width:520px){.side-card{grid-template-columns:1fr}.side-card img{aspect-ratio:16/9}}
.chip{
  display:inline-flex;align-items:center;font-size:12px;line-height:1;
  background:rgba(244,82,30,.92);color:#fff;border-radius:999px;padding:6px 12px;font-weight:600;
}
.chip-soft{background:var(--brand-soft);color:var(--brand)}
.chip-accent{background:rgba(22,199,154,.14);color:var(--accent-dark)}
.chip-amber{background:rgba(255,176,32,.18);color:#A96E00}

/* ---------- 最新信息（CMS） ---------- */
.news-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.news-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{
  display:flex;flex-direction:column;background:var(--bg);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;height:100%;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);border-color:rgba(244,82,30,.2)}
.news-thumb{overflow:hidden;border-radius:var(--radius-card) var(--radius-card) 0 0}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .28s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  font-size:14px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-2);
}
.news-meta time{font-variant-numeric:tabular-nums}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 20px;border:1px dashed var(--line);
  border-radius:var(--radius-card);background:var(--bg);
}
.empty-state i{font-size:32px;color:rgba(244,82,30,.4)}
.empty-state p{margin-top:14px;font-size:15px;color:var(--ink-2)}
.empty-state a{display:inline-block;margin-top:10px;color:var(--brand);font-weight:600;font-size:14px}

/* ---------- 信任背书 ---------- */
.trust-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media(min-width:1024px){.trust-grid{grid-template-columns:320px 1fr;gap:56px;align-items:start}}
.trust-stats{display:flex;flex-direction:column;gap:16px}
.trust-stat{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px 22px;
  display:flex;align-items:center;gap:16px;box-shadow:var(--shadow-1);
}
.trust-stat i{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:17px;
  background:rgba(22,199,154,.13);color:var(--accent-dark);
}
.trust-stat .ts-num{font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1}
.trust-stat .ts-label{font-size:13px;color:var(--ink-2)}
.logo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(min-width:768px){.logo-grid{grid-template-columns:repeat(4,1fr)}}
.logo-tile{
  border:1px solid var(--line);border-radius:12px;background:#fff;
  min-height:88px;display:grid;place-items:center;gap:6px;padding:14px;
  filter:grayscale(1);opacity:.72;transition:filter .24s var(--ease),opacity .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease);
}
.logo-tile:hover{filter:grayscale(0);opacity:1;transform:translateY(-4px);border-color:rgba(244,82,30,.28)}
.logo-tile i{font-size:20px;color:var(--brand)}
.logo-tile span{font-size:13px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.faq-grid{grid-template-columns:4fr 8fr;gap:56px;align-items:start}}
.faq-aside p{margin-top:14px;font-size:15px;color:var(--ink-2)}
.faq-aside .contact-line{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.faq-aside .contact-line a{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--brand);font-weight:600}
.faq-aside .contact-line a i{font-size:13px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-color:rgba(244,82,30,.32);box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:999px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:13px;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(90deg);background:var(--brand);color:#fff}
.faq-answer{padding:0 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--radius-card-lg);
  background:linear-gradient(120deg,#101418,#1B2229);
  padding:52px 28px;text-align:center;color:#fff;
  box-shadow:var(--shadow-1);
}
@media(min-width:768px){.cta-card{padding:68px 56px}}
.cta-card::before,.cta-card::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.cta-card::before{
  width:420px;height:420px;right:-140px;top:-180px;
  background:radial-gradient(circle,rgba(244,82,30,.55),transparent 68%);opacity:.16;
}
.cta-card::after{
  width:360px;height:360px;left:-120px;bottom:-160px;
  background:radial-gradient(circle,rgba(22,199,154,.5),transparent 68%);opacity:.14;
}
.cta-card h2{position:relative;z-index:1;font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25}
.cta-card p{position:relative;z-index:1;margin-top:14px;color:#C6CDD6;font-size:15px}
.cta-form{
  position:relative;z-index:1;margin:30px auto 0;max-width:560px;
  display:flex;gap:12px;flex-wrap:wrap;justify-content:center;
}
.cta-form input{
  flex:1 1 260px;min-height:52px;border-radius:14px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.08);color:#fff;padding:0 18px;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.cta-form input::placeholder{color:rgba(255,255,255,.45)}
.cta-form input:focus{border-color:var(--brand);background:rgba(255,255,255,.12);box-shadow:0 0 0 4px rgba(244,82,30,.18);outline:none}
.cta-form button{flex:0 0 auto}
.cta-note{position:relative;z-index:1;margin-top:18px;font-size:13px;color:#98A1AC}
.cta-note a{color:var(--amber);text-decoration:underline;text-underline-offset:3px}
.form-tip{position:relative;z-index:1;margin-top:14px;font-size:13px;color:var(--amber);min-height:18px}

/* ---------- 页脚 ---------- */
.site-footer{background:#101418;color:#AEB6BF;margin-top:0;position:relative}
.site-footer::before{
  content:"";display:block;height:4px;
  background:linear-gradient(120deg,var(--brand),#FF8A3D 45%,var(--accent));
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;padding:56px 0 40px}
@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 1.2fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand i{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(120deg,var(--brand),#FF8A3D);color:#fff;font-size:16px;
}
.footer-brand b{color:#fff;font-size:17px;font-weight:700}
.footer-slogan{font-size:14px;line-height:1.85;color:#8E97A2;max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#AEB6BF;transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{font-size:14px;display:flex;gap:10px;align-items:flex-start;color:#AEB6BF}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:#7B848F;
}
.footer-bottom a{color:#AEB6BF}
.footer-bottom a:hover{color:var(--brand)}

/* roulang page: article */
:root{
  --brand:#F4521E;
  --brand-dark:#C93A0E;
  --brand-soft:#FDEDE6;
  --accent:#16C79A;
  --accent-dark:#0FA37F;
  --amber:#FFB020;
  --ink:#14171A;
  --ink-2:#5B6470;
  --bg:#FBF8F5;
  --line:#ECE6E0;
  --white:#FFFFFF;
  --radius-card:24px;
  --radius-lg:28px;
  --shadow-1:0 1px 2px rgba(20,23,26,.04),0 12px 32px -12px rgba(20,23,26,.18);
  --shadow-2:0 20px 48px -18px rgba(244,82,30,.35);
  --ease:cubic-bezier(.4,0,.2,1);
  --font:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;border-radius:16px}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1280px){.container{max-width:1280px;padding:0 24px}}

/* ---------- 顶部条 ---------- */
.topbar{background:#101418;color:#C9CFD6;font-size:13px;letter-spacing:.02em}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px}
.topbar b{color:#fff;font-weight:600}
.topbar .tb-right{display:flex;align-items:center;gap:8px;font-variant-numeric:tabular-nums}
.topbar i{color:var(--amber)}
@media (max-width:520px){.topbar-inner{font-size:12px}.topbar .tb-left{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}}

/* ---------- 页头导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,248,245,.9);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease),background .24s var(--ease);
}
.site-header.is-stuck{background:rgba(255,255,255,.96);box-shadow:0 10px 30px -18px rgba(20,23,26,.35)}
.site-header .container{position:relative}
.nav-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;height:76px}
.nav-left{display:flex;align-items:center;gap:24px}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:20px}
.brand{display:flex;align-items:center;gap:11px;justify-self:center}
.brand-mark{
  width:40px;height:40px;border-radius:13px;display:grid;place-items:center;color:#fff;font-size:17px;
  background:linear-gradient(120deg,#F4521E,#FF8A3D);
  box-shadow:0 10px 22px -12px rgba(244,82,30,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text b{font-size:17px;letter-spacing:.01em;font-weight:700}
.brand-text span{font-size:11px;letter-spacing:.22em;color:var(--ink-2);margin-top:3px}
.nav-link{position:relative;font-size:15px;color:var(--ink-2);padding:9px 2px;transition:color .22s var(--ease)}
.nav-link:hover{color:var(--brand)}
.nav-link:focus-visible{outline:3px solid rgba(244,82,30,.18);outline-offset:4px;border-radius:6px}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:14px;
  background:#fff;color:var(--ink);font-size:17px;align-items:center;justify-content:center;
  cursor:pointer;transition:border-color .22s var(--ease),color .22s var(--ease);
}
.nav-toggle:hover{border-color:rgba(244,82,30,.5);color:var(--brand)}
.nav-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:8px 0 18px}
.nav-panel.is-open{display:block}
.nav-panel-link{display:flex;align-items:center;height:48px;padding:0 4px;font-size:16px;color:var(--ink-2);border-bottom:1px solid var(--line)}
.nav-panel-link.is-active{color:var(--brand);font-weight:600}
.nav-panel .btn{width:100%;justify-content:center;margin-top:16px}
@media (max-width:767px){
  .nav-grid{display:flex;align-items:center;justify-content:space-between;height:64px}
  .nav-left,.nav-right{display:none}
  .brand{position:absolute;left:50%;transform:translateX(-50%)}
  .nav-toggle{display:inline-flex}
  .brand-text span{display:none}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:999px;padding:14px 28px;font-size:15px;font-weight:600;
  cursor:pointer;transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease);
}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-primary{background:linear-gradient(120deg,#F4521E,#FF8A3D);color:#fff;box-shadow:0 14px 30px -16px rgba(244,82,30,.9)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.04);box-shadow:var(--shadow-2)}
.btn-outline{background:transparent;border:1.5px solid rgba(244,82,30,.55);color:var(--brand-dark)}
.btn-outline:hover{background:var(--brand-soft);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 18px 40px -20px rgba(0,0,0,.6)}
.btn:focus-visible{outline:3px solid rgba(244,82,30,.22);outline-offset:3px}

/* ---------- 文章头横幅 ---------- */
.article-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:
    linear-gradient(115deg,rgba(16,20,24,.92),rgba(16,20,24,.72) 55%,rgba(244,82,30,.55)),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.article-hero::after{
  content:"";position:absolute;inset:auto -10% -60% -10%;height:220px;
  background:radial-gradient(60% 100% at 50% 0,rgba(22,199,154,.22),transparent 70%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:2;padding-top:34px;padding-bottom:52px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.7)}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:rgba(255,255,255,.9);max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chip{
  display:inline-flex;align-items:center;gap:6px;margin:22px 0 16px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.04em;
  background:rgba(255,176,32,.18);color:#FFD68A;border:1px solid rgba(255,176,32,.35);
}
.article-hero h1{
  font-size:clamp(26px,3.8vw,40px);line-height:1.22;font-weight:700;letter-spacing:.01em;
  max-width:920px;color:#fff;text-shadow:0 2px 20px rgba(0,0,0,.35);
}
.meta-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:26px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.18);font-size:14px;color:rgba(255,255,255,.78);
  font-variant-numeric:tabular-nums;
}
.meta-bar span{display:inline-flex;align-items:center;gap:8px}
.meta-bar i{color:var(--amber);font-size:13px}
@media (max-width:520px){
  .article-hero .container{padding-top:24px;padding-bottom:38px}
  .meta-bar{gap:8px 16px;font-size:13px}
}

/* ---------- 正文布局 ---------- */
.article-wrap{padding:56px 0 0}
@media (min-width:1024px){.article-wrap{padding:72px 0 0}}
.article-layout{display:grid;gap:40px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,760px) 300px;gap:56px;justify-content:center}
}
.article-main{max-width:760px;width:100%;margin:0 auto}
.article-body{font-size:17px;line-height:1.9;color:#343B43}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.05em}
.article-body h2{
  font-size:clamp(22px,2.5vw,28px);line-height:1.32;font-weight:700;color:var(--ink);
  margin:2em 0 .7em;padding-left:14px;border-left:4px solid var(--brand);border-radius:2px;
}
.article-body h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--ink);margin:1.7em 0 .6em}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:1.4em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.45em 0;line-height:1.85}
.article-body blockquote{
  margin:1.7em 0;padding:18px 24px;background:#FFF6F0;border-left:3px solid var(--brand);
  border-radius:0 16px 16px 0;color:#4A5158;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:1.5em 0;width:100%;height:auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:8px}
.article-body a{color:var(--brand-dark);border-bottom:1px solid rgba(244,82,30,.35);transition:color .2s var(--ease)}
.article-body a:hover{color:var(--brand)}
.article-body strong{color:var(--ink)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:1.7em 0;font-size:15px;
  border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;
}
.article-body thead th{
  background:rgba(244,82,30,.06);color:var(--ink);font-weight:600;text-align:left;
  padding:12px 16px;border-bottom:1px solid var(--line);
}
.article-body tbody td{padding:12px 16px;border-bottom:1px solid var(--line);color:#414953}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body tbody tr:nth-child(even){background:#FCFAF8}
@media (max-width:640px){
  .article-body{font-size:16px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}

/* ---------- 空态 ---------- */
.empty-state{
  margin:8px auto 0;max-width:520px;text-align:center;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:56px 28px;box-shadow:var(--shadow-1);
}
.empty-state i{font-size:34px;color:rgba(244,82,30,.65)}
.empty-state p{margin:16px 0 22px;color:var(--ink-2);font-size:16px}

/* ---------- 文末组合 ---------- */
.article-end{margin-top:56px;padding-top:36px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-label{font-size:13px;color:var(--ink-2);letter-spacing:.06em}
.tag{
  display:inline-flex;align-items:center;padding:7px 15px;border-radius:999px;font-size:13px;
  background:var(--brand-soft);color:var(--brand-dark);border:1px solid rgba(244,82,30,.14);
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
a.tag:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
.nextprev{display:grid;gap:18px;margin-top:30px}
@media (min-width:640px){.nextprev{grid-template-columns:1fr 1fr}}
.np-card{
  display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:20px;padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.np-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);border-color:rgba(244,82,30,.3)}
.np-label{font-size:12px;letter-spacing:.1em;color:var(--brand);font-weight:600}
.np-card b{font-size:16px;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.np-hint{font-size:13px;color:var(--ink-2)}

/* ---------- 侧栏 ---------- */
.article-side{display:none}
@media (min-width:1024px){
  .article-side{display:block;position:sticky;top:104px;align-self:start}
}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);margin-bottom:20px}
.side-card h3{font-size:15px;font-weight:700;letter-spacing:.04em;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--brand)}
.toc-list li + li{margin-top:2px}
.toc-list a{
  display:block;font-size:14px;color:var(--ink-2);padding:9px 12px;border-radius:12px;
  border-left:2px solid transparent;transition:all .2s var(--ease);
}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand-dark);border-left-color:var(--brand)}
.side-mini{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line)}
.side-mini:last-child{border-bottom:0}
.side-mini img{width:66px;height:50px;object-fit:cover;border-radius:12px;flex:none}
.side-mini span{font-size:13.5px;line-height:1.55;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-mini:hover span{color:var(--brand-dark)}
.back-link{
  display:flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:600;
  color:var(--brand-dark);border:1.5px dashed rgba(244,82,30,.35);border-radius:16px;padding:14px;
  transition:background .22s var(--ease);background:rgba(253,237,230,.5);
}
.back-link:hover{background:var(--brand-soft)}

/* ---------- 板块头 ---------- */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.25;font-weight:700}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--ink-2)}
.link-more{font-size:14px;font-weight:600;color:var(--brand-dark);display:inline-flex;align-items:center;gap:8px;transition:gap .22s var(--ease),color .22s var(--ease)}
.link-more:hover{gap:12px;color:var(--brand)}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 0}
.related-grid{display:grid;gap:24px}
@media (min-width:768px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.rcard{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.rcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);border-color:rgba(244,82,30,.24)}
.rcard-img{position:relative;aspect-ratio:16/10;overflow:hidden}
.rcard-img img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s var(--ease)}
.rcard:hover .rcard-img img{transform:scale(1.03)}
.rcard-badge{
  position:absolute;top:14px;left:14px;background:rgba(244,82,30,.92);color:#fff;
  font-size:12px;padding:5px 12px;border-radius:999px;letter-spacing:.02em;
}
.rcard-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard-body h3{font-size:16.5px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rcard-body p{font-size:14px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rcard-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums}

/* ---------- 文章页 CTA ---------- */
.cta-band{margin-top:80px}
.cta-inner{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);padding:52px 28px;text-align:center;color:#fff;
  background:linear-gradient(135deg,#101418,#1B2229);
}
.cta-inner::before{
  content:"";position:absolute;width:420px;height:420px;right:-120px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(244,82,30,.28),transparent 68%);
}
.cta-inner::after{
  content:"";position:absolute;width:320px;height:320px;left:-120px;bottom:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,199,154,.22),transparent 70%);
}
.cta-inner > *{position:relative;z-index:2}
.cta-inner h2{font-size:clamp(22px,2.8vw,32px);line-height:1.28;font-weight:700}
.cta-inner p{margin:14px auto 26px;max-width:620px;font-size:15px;color:rgba(255,255,255,.78)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-note{margin-top:20px;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;margin-top:88px;background:#101418;color:#C9CFD6}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(120deg,#F4521E,#FF8A3D)}
.footer-grid{display:grid;gap:34px;padding:64px 0 38px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;color:#fff;font-weight:700}
.footer-brand i{color:var(--amber)}
.footer-slogan{margin-top:14px;font-size:14px;line-height:1.8;color:#98A2AD;max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:#98A2AD;transition:color .22s var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:#98A2AD}
.footer-contact i{color:var(--accent);margin-top:5px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:20px 0 30px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#7E8894;
}
@media (max-width:520px){
  .footer-grid{padding:48px 0 30px;gap:28px}
  .cta-inner{padding:40px 20px}
}

/* roulang page: category1 */
:root{
    --brand:#F4521E;
    --brand-dark:#C93A0E;
    --brand-soft:#FDEDE6;
    --accent:#16C79A;
    --accent-dark:#0FA37F;
    --amber:#FFB020;
    --ink:#14171A;
    --ink-2:#5B6470;
    --bg:#FBF8F5;
    --line:#ECE6E0;
    --white:#ffffff;
    --grad-brand:linear-gradient(120deg,#F4521E 0%,#FF8A3D 100%);
    --grad-accent:linear-gradient(120deg,#16C79A 0%,#0FA37F 100%);
    --grad-ink:linear-gradient(120deg,#101418 0%,#1B2229 100%);
    --radius-card:24px;
    --radius-big:28px;
    --shadow-1:0 1px 2px rgba(20,23,26,.04),0 12px 32px -12px rgba(20,23,26,.18);
    --shadow-2:0 20px 48px -18px rgba(244,82,30,.35);
    --ease:cubic-bezier(.4,0,.2,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
  a:hover{color:var(--brand);}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  h1,h2,h3,h4{line-height:1.22;font-weight:700;letter-spacing:.01em;}
  .num,.tabular{font-variant-numeric:tabular-nums;}
  :focus-visible{outline:none;box-shadow:0 0 0 3px rgba(244,82,30,.28);border-radius:8px;}
  ::selection{background:rgba(244,82,30,.18);}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  @media (min-width:768px){.container{padding:0 32px;}}
  @media (min-width:1280px){.container{max-width:1240px;padding:0 24px;}}

  /* ---------- 顶部条 ---------- */
  .topbar{background:var(--grad-ink);color:#E8E4E0;font-size:13px;}
  .topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;}
  .topbar-inner span{display:inline-flex;align-items:center;gap:8px;}
  .topbar-inner i{color:var(--amber);font-size:12px;}

  /* ---------- 导航 ---------- */
  .site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);backdrop-filter:blur(12px);transition:box-shadow .24s var(--ease),background .24s var(--ease);}
  .site-header.is-stuck{box-shadow:0 10px 30px -18px rgba(20,23,26,.35);background:rgba(255,255,255,.96);}
  .nav-grid{
    display:grid;
    grid-template-columns:1fr auto 1fr;
    align-items:center;
    gap:16px;
    min-height:70px;
  }
  .nav-left{display:flex;align-items:center;gap:26px;justify-content:flex-start;}
  .nav-right{display:flex;align-items:center;gap:22px;justify-content:flex-end;}
  .nav-left li{display:flex;}
  .nav-link{
    font-size:16px;
    color:var(--ink-2);
    padding:6px 2px;
    position:relative;
    white-space:nowrap;
    transition:color .22s var(--ease);
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
    background:var(--grad-brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
    transition:transform .24s var(--ease);
  }
  .nav-link:hover{color:var(--brand);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--brand);font-weight:600;background:rgba(244,82,30,.08);border-radius:999px;padding:6px 12px;}
  .nav-link.is-active::after{transform:scaleX(0);}
  .brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;color:var(--ink);}
  .brand:hover{color:var(--ink);}
  .brand-mark{
    width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
    background:var(--grad-brand);color:#fff;font-size:17px;
    box-shadow:0 10px 24px -12px rgba(244,82,30,.7);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.1;}
  .brand-text b{font-size:17px;letter-spacing:.02em;}
  .brand-text span{font-size:11.5px;color:var(--ink-2);letter-spacing:.16em;}
  .nav-toggle{
    display:none;width:46px;height:46px;border-radius:14px;
    border:1px solid var(--line);background:#fff;color:var(--ink);font-size:17px;
    justify-self:end;align-items:center;justify-content:center;
  }
  .nav-toggle:hover{border-color:rgba(244,82,30,.4);color:var(--brand);}
  .mobile-panel{
    display:none;border-top:1px solid var(--line);background:#fff;
    padding:10px 0 18px;
  }
  .mobile-panel.is-open{display:block;}
  .mobile-panel a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:48px;padding:0 4px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);
  }
  .mobile-panel a.is-active{color:var(--brand);font-weight:600;}
  .mobile-panel .btn{width:100%;margin-top:14px;justify-content:center;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;gap:8px;
    padding:14px 28px;border-radius:999px;font-size:15px;font-weight:600;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
    white-space:nowrap;
  }
  .btn:hover{transform:translateY(-2px);}
  .btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 14px 30px -14px rgba(244,82,30,.65);}
  .btn-primary:hover{color:#fff;filter:brightness(1.04);box-shadow:var(--shadow-2);}
  .btn-ghost{border:1.5px solid var(--brand);color:var(--brand);}
  .btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);}
  .btn-light{background:#fff;color:var(--ink);border:1px solid rgba(255,255,255,.7);}
  .btn-light:hover{color:var(--brand);}
  .btn-sm{padding:10px 20px;font-size:14px;}

  /* ---------- 页头横幅 ---------- */
  .page-banner{
    position:relative;overflow:hidden;color:#fff;
    background-image:url(/assets/images/backpic/back-1.webp);
    background-size:cover;background-position:center;
    padding:64px 0 72px;
  }
  .page-banner::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(120deg,rgba(16,20,24,.86) 0%,rgba(201,58,14,.68) 52%,rgba(244,82,30,.55) 100%);
  }
  .page-banner::after{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
    background-size:22px 22px;opacity:.22;
  }
  .banner-inner{position:relative;z-index:2;max-width:820px;}
  .breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.82);margin-bottom:22px;}
  .breadcrumb a{color:rgba(255,255,255,.82);}
  .breadcrumb a:hover{color:#fff;}
  .breadcrumb i{font-size:9px;opacity:.7;}
  .banner-tag{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;
    background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.32);color:#fff;
    margin-bottom:18px;
  }
  .banner-tag i{color:var(--amber);}
  .page-banner h1{
    font-size:clamp(28px,4.4vw,44px);
    line-height:1.16;
    margin-bottom:16px;
  }
  .page-banner h1 em{font-style:normal;color:var(--amber);}
  .banner-sub{font-size:16px;color:rgba(255,255,255,.9);max-width:640px;margin-bottom:28px;}
  .banner-actions{display:flex;flex-wrap:wrap;gap:14px;}

  /* ---------- 板块通用 ---------- */
  .section{padding:56px 0;}
  @media (min-width:768px){.section{padding:72px 0;}}
  @media (min-width:1024px){.section{padding:96px 0;}}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:38px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--brand);
    text-transform:uppercase;margin-bottom:12px;
  }
  .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad-brand);}
  .section-title{font-size:clamp(24px,3vw,38px);margin-bottom:12px;}
  .section-desc{color:var(--ink-2);font-size:15.5px;max-width:620px;}
  .link-more{font-size:15px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
  .link-more:hover{gap:10px;}

  /* ---------- 四点快条 ---------- */
  .quick-strip{
    background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .quick-strip ul{
    display:flex;gap:34px;overflow-x:auto;padding:20px 20px;scrollbar-width:none;
    max-width:1200px;margin:0 auto;
  }
  .quick-strip ul::-webkit-scrollbar{display:none;}
  .quick-strip li{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;color:var(--ink);white-space:nowrap;}
  .quick-strip i{
    width:32px;height:32px;border-radius:10px;display:grid;place-items:center;font-size:14px;
    background:rgba(22,199,154,.12);color:var(--accent-dark);
  }
  .quick-strip li:nth-child(2) i{background:rgba(244,82,30,.12);color:var(--brand);}
  .quick-strip li:nth-child(3) i{background:rgba(255,176,32,.16);color:#B57700;}
  .quick-strip li:nth-child(4) i{background:rgba(20,23,26,.08);color:var(--ink);}

  /* ---------- 交错图文 ---------- */
  .split-row{
    display:grid;gap:32px;align-items:center;
    padding:30px 0;
    border-bottom:1px dashed var(--line);
  }
  .split-row:last-child{border-bottom:0;}
  @media (min-width:1024px){
    .split-row{grid-template-columns:5fr 7fr;gap:56px;padding:38px 0;}
    .split-row.reverse{grid-template-columns:7fr 5fr;}
    .split-row.reverse .split-media{order:2;}
  }
  .split-media{position:relative;}
  .split-media img{
    width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-big);
    box-shadow:var(--shadow-1);
  }
  .split-media::after{
    content:"";position:absolute;inset:0;border-radius:var(--radius-big);
    background:linear-gradient(150deg,rgba(244,82,30,.16) 0%,rgba(16,20,24,0) 58%);
    pointer-events:none;
  }
  .split-index{
    position:absolute;left:20px;top:20px;
    background:rgba(16,20,24,.78);color:#fff;font-size:13px;font-weight:700;
    padding:6px 14px;border-radius:999px;letter-spacing:.1em;
  }
  .split-body h3{font-size:22px;margin-bottom:14px;}
  .split-body p{color:var(--ink-2);font-size:15.5px;margin-bottom:16px;}
  .pill-list{display:flex;flex-wrap:wrap;gap:10px;}
  .pill{
    display:inline-flex;align-items:center;gap:7px;
    padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600;
    background:var(--brand-soft);color:var(--brand-dark);
  }
  .pill.accent{background:rgba(22,199,154,.13);color:var(--accent-dark);}
  .pill.amber{background:rgba(255,176,32,.16);color:#A96C00;}

  /* ---------- 数据带 ---------- */
  .data-band{background:var(--grad-ink);color:#fff;position:relative;overflow:hidden;}
  .data-band::after{
    content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
    background:radial-gradient(circle,rgba(244,82,30,.42) 0%,rgba(244,82,30,0) 70%);
  }
  .data-band .container{position:relative;z-index:2;padding-top:46px;padding-bottom:46px;}
  .data-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 18px;}
  @media (min-width:768px){.data-grid{grid-template-columns:repeat(4,1fr);}}
  .data-item{padding-left:16px;border-left:1px solid rgba(255,255,255,.16);}
  .data-item .figure{font-size:clamp(26px,3vw,32px);font-weight:700;letter-spacing:.01em;font-variant-numeric:tabular-nums;}
  .data-item .figure span{font-size:15px;color:var(--accent);margin-left:4px;}
  .data-item .label{font-size:13px;color:rgba(255,255,255,.7);margin-top:4px;}

  /* ---------- 内容卡 ---------- */
  .card-grid{display:grid;gap:24px;grid-template-columns:1fr;}
  @media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.card-grid{grid-template-columns:repeat(4,1fr);}}
  .card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
    transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  }
  .card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);border-color:rgba(244,82,30,.28);}
  .card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#F2EDE8;}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
  .card:hover .card-media img{transform:scale(1.03);}
  .card-media .corner{
    position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:999px;
    background:rgba(244,82,30,.92);color:#fff;font-size:12px;font-weight:600;
  }
  .card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .card-body h3{font-size:17.5px;}
  .card-body p{font-size:14.5px;color:var(--ink-2);}
  .card-body .enter{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
  .card:hover .enter{gap:10px;}

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;gap:32px;}
  @media (min-width:1024px){.faq-wrap{grid-template-columns:4fr 8fr;gap:56px;}}
  .faq-side .section-desc{margin-bottom:22px;}
  .faq-contact{
    display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:999px;
    background:#fff;border:1px solid var(--line);font-size:14.5px;font-weight:600;color:var(--ink);
  }
  .faq-contact:hover{border-color:rgba(244,82,30,.4);color:var(--brand);}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:14px;overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);}
  .faq-item:hover{border-color:rgba(244,82,30,.28);}
  .faq-item.is-open{box-shadow:var(--shadow-1);border-color:rgba(244,82,30,.3);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  }
  .faq-q:hover{color:var(--brand);}
  .faq-q .sign{
    width:30px;height:30px;flex:0 0 30px;border-radius:50%;display:grid;place-items:center;
    background:var(--brand-soft);color:var(--brand);font-size:15px;
    transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
  }
  .faq-item.is-open .sign{transform:rotate(90deg);background:var(--grad-brand);color:#fff;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease);}
  .faq-a p{padding:0 22px 20px;font-size:15px;color:var(--ink-2);}

  /* ---------- CTA ---------- */
  .cta-card{
    position:relative;overflow:hidden;border-radius:var(--radius-big);
    background:var(--grad-ink);color:#fff;padding:44px 26px;text-align:center;
  }
  @media (min-width:768px){.cta-card{padding:60px 48px;}}
  .cta-card::after{
    content:"";position:absolute;left:-80px;bottom:-140px;width:380px;height:380px;border-radius:50%;
    background:radial-gradient(circle,rgba(244,82,30,.34) 0%,rgba(244,82,30,0) 70%);
  }
  .cta-inner{position:relative;z-index:2;max-width:640px;margin:0 auto;}
  .cta-card h2{font-size:clamp(22px,2.8vw,32px);margin-bottom:12px;}
  .cta-card p{color:rgba(255,255,255,.78);font-size:15px;margin-bottom:26px;}
  .cta-form{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}
  .cta-form input{
    flex:1 1 260px;min-width:0;padding:14px 20px;border-radius:14px;border:1px solid rgba(255,255,255,.24);
    background:rgba(255,255,255,.08);color:#fff;font-size:15px;
  }
  .cta-form input::placeholder{color:#9AA2AC;}
  .cta-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(244,82,30,.22);}
  .cta-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.6);}
  .cta-note a{color:var(--amber);}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--grad-ink);color:#D8D3CE;margin-top:0;position:relative;}
  .site-footer::before{content:"";display:block;height:4px;background:var(--grad-brand);}
  .footer-grid{display:grid;gap:34px;padding:52px 0 34px;grid-template-columns:1fr;}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;}}
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;margin-bottom:14px;}
  .footer-brand i{color:var(--brand);font-size:18px;}
  .footer-slogan{font-size:14px;color:rgba(255,255,255,.62);line-height:1.8;}
  .footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;}
  .footer-col ul li{margin-bottom:10px;}
  .footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
  .footer-col a:hover{color:var(--brand);}
  .footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:rgba(255,255,255,.68);}
  .footer-contact i{color:var(--accent);margin-top:5px;font-size:13px;}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    font-size:13px;color:rgba(255,255,255,.52);
  }
  @media (max-width:1023px){
    .nav-left,.nav-right{display:none;}
    .nav-grid{grid-template-columns:46px 1fr 46px;min-height:64px;}
    .brand{justify-self:center;}
    .nav-toggle{display:inline-flex;grid-column:3;}
    .brand{grid-column:2;}
  }
  @media (max-width:520px){
    .brand-text b{font-size:15.5px;}
    .brand-text span{font-size:10.5px;}
    .topbar-inner{font-size:12px;gap:10px;}
    .quick-strip ul{gap:22px;}
    .cta-form input{flex:1 1 100%;}
    .cta-form .btn{width:100%;justify-content:center;}
  }

/* roulang page: category2 */
:root{
    --brand:#F4521E;
    --brand-dark:#C93A0E;
    --brand-soft:#FDEDE6;
    --accent:#16C79A;
    --accent-dark:#0FA37F;
    --amber:#FFB020;
    --ink:#14171A;
    --ink-2:#5B6470;
    --bg:#FBF8F5;
    --line:#ECE6E0;
    --radius-card:24px;
    --radius-lg:28px;
    --shadow-1:0 1px 2px rgba(20,23,26,.04), 0 12px 32px -12px rgba(20,23,26,.18);
    --shadow-2:0 20px 48px -18px rgba(244,82,30,.35);
    --grad-brand:linear-gradient(120deg,#F4521E 0%,#FF8A3D 100%);
    --grad-dark:linear-gradient(120deg,#101418 0%,#1B2229 100%);
    --ease:cubic-bezier(.4,0,.2,1);
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
    background:var(--bg);
    color:var(--ink);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  ul{margin:0;padding:0;list-style:none;}
  button{font:inherit;border:none;background:none;cursor:pointer;color:inherit;}
  h1,h2,h3,h4,p{margin:0;}
  :focus-visible{outline:3px solid rgba(244,82,30,.28);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 32px;}}
  @media (min-width:1280px){.container{max-width:1240px;padding:0 24px;}}

  .num{font-variant-numeric:tabular-nums;}

  /* ---------- 顶部条 ---------- */
  .topbar{background:var(--ink);color:rgba(255,255,255,.86);font-size:13px;}
  .topbar-inner{display:flex;align-items:center;justify-content:space-between;height:40px;gap:16px;}
  .topbar-inner i{color:var(--accent);margin-right:7px;}
  .topbar-right{display:none;color:rgba(255,255,255,.66);}
  @media (min-width:640px){.topbar-right{display:block;}}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(251,248,245,.92);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid transparent;
    transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(255,255,255,.94);
    border-bottom-color:var(--line);
    box-shadow:0 8px 26px -18px rgba(20,23,26,.4);
  }
  .nav-grid{
    display:grid;
    grid-template-columns:1fr auto 1fr;
    align-items:center;
    gap:16px;
    min-height:72px;
  }
  .nav-left{display:flex;align-items:center;gap:4px;}
  .nav-right{display:flex;align-items:center;gap:4px;justify-content:flex-end;}
  .nav-link{
    display:inline-flex;align-items:center;
    font-size:15px;color:var(--ink-2);
    padding:8px 14px;border-radius:999px;
    white-space:nowrap;
    transition:color .2s var(--ease),background-color .2s var(--ease);
  }
  .nav-link:hover{color:var(--brand);background:rgba(244,82,30,.06);}
  .nav-link.is-active{
    color:var(--brand);font-weight:600;
    background:rgba(244,82,30,.08);
    box-shadow:inset 0 -2px 0 var(--brand);
  }
  .brand{display:flex;align-items:center;gap:10px;justify-self:center;}
  .brand-mark{
    width:40px;height:40px;border-radius:14px;
    background:var(--grad-brand);color:#fff;
    display:grid;place-items:center;font-size:17px;
    box-shadow:0 10px 22px -12px rgba(244,82,30,.75);
  }
  .brand-text b{display:block;font-size:17px;letter-spacing:.01em;line-height:1.25;}
  .brand-text span{display:block;font-size:11px;letter-spacing:.22em;color:var(--ink-2);}

  .nav-toggle{
    display:none;font-size:19px;color:var(--ink);
    width:44px;height:44px;border-radius:12px;justify-self:end;
    align-items:center;justify-content:center;
    transition:background-color .2s var(--ease);
  }
  .nav-toggle:hover{background:var(--brand-soft);}

  .mobile-panel{
    display:none;border-top:1px solid var(--line);
    background:#fff;padding:8px 0 18px;
  }
  .mobile-panel.is-open{display:block;}
  .mobile-panel a{
    display:flex;align-items:center;min-height:48px;
    padding:0 4px;font-size:16px;color:var(--ink-2);
    border-bottom:1px solid var(--line);
    transition:color .2s var(--ease);
  }
  .mobile-panel a:hover{color:var(--brand);}
  .mobile-panel .panel-cta{
    margin-top:14px;width:100%;justify-content:center;color:#fff;
    border-bottom:none;
  }

  @media (max-width:900px){
    .nav-left,.nav-right{display:none;}
    .nav-grid{grid-template-columns:44px 1fr 44px;}
    .brand{grid-column:2;}
    .nav-toggle{display:inline-flex;grid-column:3;}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;font-size:15px;font-weight:600;
    padding:13px 26px;line-height:1;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  }
  .btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 14px 28px -16px rgba(244,82,30,.85);}
  .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 20px 36px -18px rgba(244,82,30,.9);}
  .btn-primary:active{background:var(--brand-dark);transform:translateY(0);}
  .btn-ghost{border:1.5px solid var(--brand);color:var(--brand);background:transparent;}
  .btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px);}
  .btn-light{background:#fff;color:var(--ink);}
  .btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 30px -18px rgba(0,0,0,.6);}
  .btn-outline-light{border:1.5px solid rgba(255,255,255,.55);color:#fff;}
  .btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);}
  .btn-sm{padding:10px 20px;font-size:14px;}

  /* ---------- 板块 ---------- */
  .section{padding:56px 0;}
  @media (min-width:768px){.section{padding:72px 0;}}
  @media (min-width:1024px){.section{padding:96px 0;}}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:600;letter-spacing:.16em;
    color:var(--brand);background:var(--brand-soft);
    padding:6px 14px;border-radius:999px;text-transform:uppercase;
  }
  .sec-title{font-size:clamp(24px,3vw,38px);line-height:1.2;font-weight:700;letter-spacing:.01em;}
  .sec-sub{color:var(--ink-2);font-size:15px;max-width:640px;margin-top:12px;}

  /* ---------- 页头横幅 ---------- */
  .banner-wrap{padding-top:28px;}
  .banner{
    position:relative;overflow:hidden;
    border-radius:var(--radius-lg);
    padding:56px 28px 52px;
    color:#fff;
    background-image:linear-gradient(115deg,rgba(16,20,24,.82) 0%,rgba(16,20,24,.58) 46%,rgba(244,82,30,.62) 100%),url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    box-shadow:var(--shadow-1);
  }
  .banner::after{
    content:"";position:absolute;right:-60px;bottom:-80px;width:320px;height:320px;
    background:radial-gradient(circle at center,rgba(22,199,154,.35),transparent 68%);
    pointer-events:none;
  }
  .banner-inner{position:relative;z-index:2;max-width:780px;}
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.75);}
  .crumb a:hover{color:#fff;text-decoration:underline;}
  .crumb span.sep{color:rgba(255,255,255,.4);}
  .banner h1{
    font-size:clamp(28px,4.2vw,44px);line-height:1.14;font-weight:700;
    letter-spacing:.01em;margin-top:22px;
  }
  .banner h1 em{font-style:normal;color:#FFD3B8;}
  .banner-lead{margin-top:16px;font-size:16px;color:rgba(255,255,255,.88);max-width:620px;}
  .banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .banner-tags span{
    display:inline-flex;align-items:center;gap:7px;
    font-size:13px;padding:8px 15px;border-radius:999px;
    background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
    backdrop-filter:blur(6px);
  }
  .banner-tags i{color:var(--accent);}
  @media (min-width:768px){.banner{padding:72px 56px 64px;}}

  /* ---------- 编号清单 ---------- */
  .step-list{display:grid;gap:16px;margin-top:40px;}
  .step-item{
    position:relative;overflow:hidden;
    display:grid;grid-template-columns:104px 1fr;gap:20px;align-items:start;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px 24px;box-shadow:var(--shadow-1);
    transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  }
  .step-item:hover{transform:translateY(-6px);border-color:rgba(244,82,30,.24);box-shadow:var(--shadow-2);}
  .step-num{
    font-size:clamp(44px,6vw,64px);font-weight:800;line-height:.9;
    color:var(--brand);opacity:.16;letter-spacing:-.02em;
  }
  .step-body h3{font-size:20px;font-weight:600;line-height:1.35;}
  .step-body p{color:var(--ink-2);font-size:15px;margin-top:10px;}
  .step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
  .step-tags span{
    font-size:12px;padding:5px 12px;border-radius:999px;
    background:rgba(22,199,154,.12);color:var(--accent-dark);font-weight:600;
  }
  @media (max-width:639px){
    .step-item{grid-template-columns:1fr;gap:8px;padding:24px 20px;}
    .step-num{font-size:48px;}
  }

  /* ---------- 数据徽章 ---------- */
  .badge-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;}
  .badge-stat{
    display:flex;align-items:center;gap:14px;
    padding:14px 22px;border-radius:999px;
    background:rgba(22,199,154,.12);color:var(--accent-dark);
    transition:transform .22s var(--ease);
  }
  .badge-stat:hover{transform:translateY(-3px);}
  .badge-stat i{font-size:18px;}
  .badge-stat b{font-size:26px;font-weight:700;line-height:1;letter-spacing:-.01em;}
  .badge-stat small{display:block;font-size:12px;color:var(--ink-2);}
  .badge-stat.is-amber{background:rgba(255,176,32,.16);color:#B47400;}
  .badge-stat.is-brand{background:var(--brand-soft);color:var(--brand);}

  /* ---------- 大卡 ---------- */
  .feature-grid{display:grid;gap:24px;margin-top:40px;}
  @media (min-width:900px){.feature-grid{grid-template-columns:1fr 1fr;}}
  .feature-card{
    display:flex;flex-direction:column;overflow:hidden;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);
    transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  }
  .feature-card:hover{transform:translateY(-6px);border-color:rgba(244,82,30,.24);box-shadow:var(--shadow-2);}
  .feature-media{position:relative;aspect-ratio:16/10;overflow:hidden;}
  .feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
  .feature-card:hover .feature-media img{transform:scale(1.03);}
  .feature-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(16,20,24,.05) 0%,rgba(16,20,24,.35) 100%);
  }
  .tag-pill{
    position:absolute;top:14px;left:14px;z-index:2;
    font-size:12px;font-weight:600;padding:6px 13px;border-radius:999px;
    background:rgba(244,82,30,.92);color:#fff;
  }
  .feature-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .feature-body h3{font-size:21px;font-weight:600;line-height:1.35;}
  .feature-body p{color:var(--ink-2);font-size:15px;}
  .feature-link{
    margin-top:auto;display:inline-flex;align-items:center;gap:8px;
    color:var(--brand);font-weight:600;font-size:15px;
  }
  .feature-link i{transition:transform .22s var(--ease);}
  .feature-card:hover .feature-link i{transform:translateX(4px);}

  /* ---------- 数据带 ---------- */
  .statband{
    margin-top:8px;
    background:var(--grad-dark);color:#fff;
    border-radius:var(--radius-lg);
    padding:34px 24px;
    display:grid;grid-template-columns:repeat(2,1fr);gap:26px 18px;
  }
  .statband .stat{padding-left:16px;border-left:1px solid rgba(255,255,255,.16);}
  .statband .stat b{display:block;font-size:clamp(24px,3.6vw,32px);font-weight:700;color:#fff;letter-spacing:-.01em;}
  .statband .stat small{display:block;margin-top:6px;font-size:13px;color:rgba(255,255,255,.66);}
  .statband .stat i{color:var(--accent);}
  @media (min-width:768px){
    .statband{grid-template-columns:repeat(4,1fr);padding:40px 40px;}
  }

  /* ---------- FAQ ---------- */
  .faq-grid{display:grid;gap:32px;margin-top:36px;}
  @media (min-width:1024px){.faq-grid{grid-template-columns:4fr 8fr;gap:48px;}}
  .faq-contact{
    margin-top:20px;background:#fff;border:1px solid var(--line);
    border-radius:18px;padding:20px;box-shadow:var(--shadow-1);
  }
  .faq-contact a{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:7px;}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:16px;
    margin-bottom:12px;overflow:hidden;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .faq-item.is-open{border-color:rgba(244,82,30,.28);box-shadow:var(--shadow-1);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    text-align:left;font-size:17px;font-weight:600;color:var(--ink);
    padding:20px 22px;
  }
  .faq-q i{
    color:var(--brand);font-size:15px;flex:none;
    transition:transform .2s var(--ease);
  }
  .faq-item.is-open .faq-q i{transform:rotate(45deg);}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height .24s var(--ease);
  }
  .faq-a p{padding:0 22px 22px;color:var(--ink-2);font-size:15px;}

  /* ---------- CTA ---------- */
  .cta-card{
    position:relative;overflow:hidden;
    border-radius:var(--radius-lg);
    background:var(--grad-dark);color:#fff;
    padding:52px 26px;text-align:center;
  }
  .cta-card::before{
    content:"";position:absolute;left:-80px;top:-90px;width:340px;height:340px;
    background:radial-gradient(circle at center,rgba(244,82,30,.5),transparent 66%);
  }
  .cta-card::after{
    content:"";position:absolute;right:-70px;bottom:-90px;width:300px;height:300px;
    background:radial-gradient(circle at center,rgba(22,199,154,.32),transparent 68%);
  }
  .cta-card > *{position:relative;z-index:2;}
  .cta-card h2{font-size:clamp(22px,3vw,34px);font-weight:700;line-height:1.25;}
  .cta-card p{margin-top:14px;color:rgba(255,255,255,.78);max-width:620px;margin-left:auto;margin-right:auto;font-size:15px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px;}
  .cta-note{margin-top:20px;font-size:13px;color:rgba(255,255,255,.6);}
  .cta-note a{color:#fff;text-decoration:underline;text-underline-offset:3px;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:96px;position:relative;}
  .site-footer::before{
    content:"";display:block;height:4px;
    background:linear-gradient(90deg,#F4521E 0%,#FF8A3D 42%,#16C79A 100%);
  }
  .footer-grid{
    display:grid;gap:34px;padding:56px 0 40px;
    grid-template-columns:1fr;
  }
  @media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;}}
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;margin-bottom:14px;}
  .footer-brand i{color:var(--brand);font-size:19px;}
  .footer-slogan{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px;}
  .footer-col h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px;letter-spacing:.04em;}
  .footer-col ul li{margin-bottom:10px;}
  .footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s var(--ease);}
  .footer-col a:hover{color:var(--brand);}
  .footer-contact li{display:flex;align-items:center;gap:9px;font-size:13px;color:rgba(255,255,255,.62);}
  .footer-contact i{color:var(--accent);font-size:13px;}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    border-top:1px solid rgba(255,255,255,.12);
    padding:20px 0 32px;font-size:13px;color:rgba(255,255,255,.5);
  }