/* roulang page: index */
:root{
  --c-ink:#14181C;
  --c-ink-2:#3D444B;
  --c-mute:#7A8288;
  --c-line:#E4E1DB;
  --c-paper:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-brand:#0E6E63;
  --c-brand-dark:#0A544C;
  --c-brand-soft:#E3F0EE;
  --c-accent:#B9703D;
  --c-accent-soft:#F0E4D6;
  --c-focus:rgba(14,110,99,.16);
  --r-btn:6px;
  --r-card:10px;
  --r-chip:999px;
  --sd-1:0 1px 2px rgba(20,24,28,.04), 0 8px 24px -14px rgba(20,24,28,.10);
  --sd-2:0 14px 34px -16px rgba(20,24,28,.20);
  --maxw:1200px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",SimSun,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--c-ink);font-family:var(--font-sans)}
h1{font-size:clamp(30px,4.4vw,56px);line-height:1.12;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(24px,2.6vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
h3{font-size:20px;line-height:1.4;font-weight:700}
p{margin:0 0 1.2em}
a{color:var(--c-brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
a:hover{color:var(--c-brand-dark)}
img{max-width:100%;height:auto;display:block;border-style:none}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;box-shadow:0 0 0 4px #fff}
body .grid-container{max-width:var(--maxw);width:100%;padding-left:32px;padding-right:32px;margin-left:auto;margin-right:auto}

/* ===== 公告条 ===== */
.notice-bar{background:var(--c-ink);color:rgba(255,255,255,.88);font-size:13px;line-height:36px;height:36px}
.notice-inner{display:flex;align-items:center;gap:16px}
.notice-text{flex:1 1 auto;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.notice-text a{color:#fff;border-bottom:1px solid rgba(255,255,255,.45)}
.notice-text a:hover{color:var(--c-brand-soft)}
.notice-close{flex:0 0 auto;width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:none;border:none;border-left:1px solid rgba(255,255,255,.2);color:rgba(255,255,255,.65);font-size:18px;line-height:1;cursor:pointer;transition:color .2s ease}
.notice-close:hover{color:#fff}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,245,241,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:background-color .25s ease,border-color .25s ease}
.site-header.is-scrolled{background:rgba(255,255,255,.95);border-bottom-color:var(--c-line)}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:88px;padding-top:10px;padding-bottom:10px;transition:min-height .25s ease,padding .25s ease}
.site-header.is-scrolled .nav-inner{min-height:64px;padding-top:6px;padding-bottom:6px}
.logo{display:flex;flex-direction:column;line-height:1.05;flex:0 0 auto;color:var(--c-ink)}
.logo:hover{color:var(--c-ink)}
.logo-main{font-size:20px;font-weight:800;letter-spacing:-.01em}
.logo-sub{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--c-accent);margin-top:3px}
.nav-search{flex:1 1 auto;max-width:560px;margin:0 auto;min-width:0}
.search-form{position:relative;display:flex;align-items:center;height:46px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-chip);padding:0 4px 0 44px;transition:border-color .2s ease,box-shadow .2s ease}
.search-form:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-focus)}
.search-form .search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:18px;height:18px;stroke:var(--c-mute);fill:none;stroke-width:2;stroke-linecap:round}
.search-form input{flex:1 1 auto;min-width:0;height:44px;border:none;background:none;font-size:15px;outline:none;color:var(--c-ink)}
.search-form input::placeholder{color:var(--c-mute)}
.search-form button{flex:0 0 auto;height:38px;padding:0 18px;border:none;border-radius:var(--r-btn);background:var(--c-brand);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .2s ease}
.search-form button:hover{background:var(--c-brand-dark)}
.chip-row{display:flex;gap:8px;margin-top:10px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none}
.chip-row::-webkit-scrollbar{display:none}
.chip{height:30px;display:inline-flex;align-items:center;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-chip);background:var(--c-surface);font-size:13px;color:var(--c-ink-2);white-space:nowrap;flex:0 0 auto}
.chip:hover{background:var(--c-brand-soft);border-color:#CFE4E1;color:var(--c-brand-dark)}
.chip.is-active{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.nav-tel{font-size:14px;color:var(--c-mute);white-space:nowrap}
.nav-tel:hover{color:var(--c-brand)}
.nav-search-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--c-line);border-radius:var(--r-btn);background:var(--c-surface);cursor:pointer;flex:0 0 auto}
.nav-search-toggle svg{width:18px;height:18px;stroke:var(--c-ink);fill:none;stroke-width:2;stroke-linecap:round}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:var(--r-btn);border:1.5px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
.btn-primary{background:var(--c-brand);color:#fff}
.btn-primary:hover{background:var(--c-brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sd-2)}
.btn-ghost{background:transparent;border-color:var(--c-ink);color:var(--c-ink)}
.btn-ghost:hover{background:var(--c-ink);color:#fff;transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-brand);position:relative;padding-bottom:2px}
.link-arrow::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--c-accent);transition:width .24s ease}
.link-arrow:hover::after{width:100%}

/* ===== Hero ===== */
.hero{padding:64px 0 0;background:linear-gradient(180deg,#FFFCF8 0%,var(--c-paper) 72%)}
.hero-grid{align-items:center}
.hero-copy{padding-right:20px}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--c-accent);border-bottom:2px solid var(--c-accent-soft);padding-bottom:4px;margin-bottom:18px}
.hero h1{font-size:clamp(28px,3.6vw,46px);margin-bottom:20px}
.hero-sub{font-size:17px;line-height:1.85;color:var(--c-ink-2);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.hero-points{display:flex;flex-direction:column;gap:10px}
.hero-points li{position:relative;padding-left:22px;font-size:15px;color:var(--c-ink-2)}
.hero-points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--c-brand-soft);border:2px solid var(--c-brand)}
.hero-visual{position:relative;margin-bottom:36px}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sd-1)}
.float-card{position:absolute;right:10px;bottom:-30px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:18px 20px;max-width:290px;box-shadow:var(--sd-2)}
.float-card-title{font-size:15px;font-weight:700;color:var(--c-ink);margin:10px 0 4px}
.float-card-desc{font-size:13px;line-height:1.7;color:var(--c-mute);margin:0}
.trust-bar{margin-top:76px;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);display:flex;flex-wrap:wrap;gap:32px;padding:26px 0}
.trust-item{flex:1 1 180px}
.trust-num{font-family:var(--font-serif);font-size:28px;color:var(--c-ink);line-height:1.2}
.trust-num em{font-style:normal;font-size:13px;color:var(--c-mute);margin-left:6px;font-family:var(--font-sans)}
.trust-label{font-size:12px;color:var(--c-mute);letter-spacing:.06em;margin-top:4px}

/* ===== 通用板块 ===== */
.section{padding:96px 0}
.section-alt{background:#FFFDFA;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.section-head h2{margin-bottom:10px}
.section-sub{font-size:16px;line-height:1.8;color:var(--c-mute);max-width:660px;margin:0}

/* ===== 三步上手 ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.step{padding:28px 28px 8px 0;border-top:1px solid var(--c-line);transition:border-color .25s ease}
.step + .step{padding-left:28px;border-left:1px dashed var(--c-line)}
.step:hover{border-top-color:var(--c-brand)}
.step-num{display:block;font-family:var(--font-serif);font-size:40px;line-height:1;color:var(--c-accent);margin-bottom:14px}
.step h3{font-size:20px;margin-bottom:10px}
.step p{font-size:15px;line-height:1.8;color:var(--c-ink-2);margin:0}
.step-note{display:block;font-size:13px;color:var(--c-mute);margin-top:12px}

/* ===== 卡片 ===== */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-chip);font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-brand{background:var(--c-brand-soft);color:var(--c-brand)}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent)}
.card-big{display:flex;flex-direction:column;height:100%;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sd-1);overflow:hidden;transition:transform .3s ease,box-shadow .3s ease}
.card-big:hover{transform:translateY(-2px);box-shadow:var(--sd-2)}
.card-big-media{display:block;overflow:hidden}
.card-big-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .8s ease}
.card-big:hover .card-big-media img{transform:scale(1.03)}
.card-big-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-big-body h3{font-size:20px;line-height:1.5;margin:0}
.card-big-body h3 a{color:var(--c-ink)}
.card-big-body h3 a:hover{color:var(--c-brand)}
.card-big-sum{font-size:15px;line-height:1.8;color:var(--c-ink-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-big-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-mute);margin-top:auto;padding-top:8px}
.meta-dot{width:3px;height:3px;border-radius:50%;background:var(--c-line);display:inline-block}

/* ===== 横向列表行 ===== */
.row-list{display:flex;flex-direction:column}
.row-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--c-line);position:relative}
.row-item:first-child{padding-top:0}
.row-item::after{content:"";position:absolute;left:0;bottom:-1px;height:1px;width:0;background:var(--c-accent);transition:width .3s ease}
.row-item:hover::after{width:100%}
.row-media{flex:0 0 96px;width:96px;height:72px;border-radius:var(--r-card);overflow:hidden;transition:transform .3s ease}
.row-item:hover .row-media{transform:translateX(2px)}
.row-media img{width:100%;height:100%;object-fit:cover}
.row-body{flex:1 1 auto;min-width:0}
.row-body h3{font-size:16px;line-height:1.5;margin:0 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-body h3 a{color:var(--c-ink)}
.row-item:hover .row-body h3 a{color:var(--c-brand)}
.row-sum{font-size:14px;line-height:1.7;color:var(--c-mute);margin:0 0 8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-mute);flex-wrap:wrap}
.data-band{display:flex;gap:32px;flex-wrap:wrap;padding-top:22px;margin-top:22px;border-top:1px solid var(--c-line)}
.data-band .trust-num{font-size:24px}

/* ===== CMS 区域 ===== */
.cms-grid{align-items:stretch}
.cms-main{display:flex}
.empty-state{padding:48px 24px;border:1px dashed var(--c-line);border-radius:var(--r-card);text-align:center;background:#FFFDFA}
.empty-state svg{width:40px;height:40px;stroke:var(--c-mute);fill:none;stroke-width:1.6;margin:0 auto 14px}
.empty-state p{font-size:15px;color:var(--c-mute);margin:0 0 18px}
.empty-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.empty-card{height:96px;border:1px dashed var(--c-line);border-radius:var(--r-card);background:#F2F0EB}

/* ===== FAQ ===== */
.faq-layout{align-items:flex-start}
.faq-acc{border:none;background:none;margin:0}
.faq-acc .accordion-item{border:none;border-top:1px solid var(--c-line);background:none}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--c-line)}
.faq-acc .accordion-title{position:relative;background:none;border:none;font-size:18px;font-weight:700;color:var(--c-ink);padding:22px 46px 22px 0;line-height:1.5}
.faq-acc .accordion-title::before{display:none}
.faq-acc .accordion-title::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:400;line-height:1;color:var(--c-accent);transition:transform .25s ease}
.faq-acc .accordion-title[aria-expanded="true"]::after{transform:translateY(-50%) rotate(45deg)}
.faq-acc .accordion-title:hover{color:var(--c-brand)}
.faq-acc .accordion-content{border:none;background:none;padding:0 0 24px;max-width:720px}
.faq-acc .accordion-content p{font-size:15px;line-height:1.85;color:var(--c-ink-2);margin:0}

/* ===== 开通 CTA ===== */
.cta-section{background:var(--c-ink);color:rgba(255,255,255,.78);padding:88px 0}
.cta-section h2{color:#fff;margin-bottom:16px}
.cta-lead{font-size:16px;line-height:1.85;color:rgba(255,255,255,.72);max-width:520px;margin-bottom:24px}
.cta-list{display:flex;flex-direction:column;gap:10px;margin-bottom:28px}
.cta-list li{position:relative;padding-left:20px;font-size:15px;color:rgba(255,255,255,.78)}
.cta-list li::before{content:"";position:absolute;left:0;top:11px;width:9px;height:2px;background:var(--c-accent)}
.cta-chips{display:flex;gap:8px;flex-wrap:wrap}
.chip-dark{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.18);color:rgba(255,255,255,.82)}
.chip-dark:hover{background:var(--c-brand-soft);border-color:var(--c-brand-soft);color:var(--c-brand-dark)}
.cta-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);padding:28px}
.form-field{margin-bottom:18px}
.form-field label{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:8px}
.form-field input,.form-field textarea{width:100%;border:1px solid rgba(255,255,255,.16);border-radius:var(--r-btn);background:rgba(255,255,255,.06);color:#fff;font-size:15px;outline:none;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease}
.form-field input{height:48px;padding:0 14px}
.form-field textarea{height:96px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-field input::placeholder,.form-field textarea::placeholder{color:rgba(255,255,255,.34)}
.form-field input:focus,.form-field textarea:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-focus);background:rgba(255,255,255,.1)}
.field-error{display:none;font-size:13px;color:#D9905E;margin-top:6px}
.field-error.is-open{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.66);margin-bottom:20px}
.check-row input{margin-top:5px;width:16px;height:16px;accent-color:var(--c-brand)}
.form-success{display:none;margin-top:16px;padding:14px 16px;border-radius:var(--r-btn);background:rgba(14,110,99,.2);border:1px solid rgba(14,110,99,.55);color:#C7EAE4;font-size:14px;line-height:1.7}
.form-success.is-open{display:block}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand-line{display:flex;flex-direction:column;line-height:1.05;margin-bottom:16px}
.footer-brand-main{font-size:20px;font-weight:800;color:#fff}
.footer-brand-sub{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--c-accent);margin-top:3px}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin:0;max-width:320px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:8px}
.footer-links a{display:inline-block;font-size:14px;line-height:1.6;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:var(--c-brand-soft);transform:translateX(2px)}
.footer-contact li{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:var(--c-brand-soft)}

/* ===== 入场动效 ===== */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .32s cubic-bezier(.22,.61,.36,1),transform .32s cubic-bezier(.22,.61,.36,1)}
.reveal.is-in{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media screen and (max-width:1024px){
  body .grid-container{padding-left:24px;padding-right:24px}
  .nav-inner{flex-wrap:wrap;min-height:74px}
  .nav-search{order:3;flex:1 0 100%;max-width:none;margin:0 0 6px;display:none}
  .nav-search.is-open{display:block}
  .nav-search-toggle{display:inline-flex}
  .section{padding:72px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-copy{padding-right:0;margin-bottom:32px}
  .float-card{position:static;max-width:none;margin-top:16px;box-shadow:var(--sd-1)}
  .trust-bar{margin-top:48px}
}
@media screen and (max-width:768px){
  body{font-size:16px}
  body .grid-container{padding-left:18px;padding-right:18px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:32px}
  .steps{grid-template-columns:1fr;gap:0}
  .step{padding:22px 0 0;border-top:1px solid var(--c-line)}
  .step + .step{padding-left:0;border-left:none;border-top-style:dashed}
  .case-grid,.faq-layout,.cms-grid{align-items:stretch}
  .cms-main{margin-bottom:24px}
  .card-big-body{padding:18px}
  .row-media{flex:0 0 84px;width:84px;height:64px}
  .cta-card{padding:20px}
  .empty-cards{grid-template-columns:1fr}
}
@media screen and (max-width:520px){
  .nav-actions .btn{height:40px;padding:0 16px;font-size:14px}
  .nav-tel{display:none}
  .hero{padding:40px 0 0}
  .hero-actions .btn{width:100%}
  .trust-bar{gap:20px}
  .trust-item{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-desc{max-width:none}
  .data-band{gap:20px}
  .float-card{max-width:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --c-ink:#14181C;
  --c-ink-2:#3D444B;
  --c-mute:#7A8288;
  --c-line:#E4E1DB;
  --c-paper:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-brand:#0E6E63;
  --c-brand-dark:#0A544C;
  --c-brand-soft:#E3F0EE;
  --c-accent:#B9703D;
  --c-accent-soft:#F0E4D6;
  --c-focus:rgba(14,110,99,.16);
  --r-btn:6px;
  --r-card:10px;
  --r-chip:999px;
  --sh-1:0 1px 2px rgba(20,24,28,.04),0 8px 24px -14px rgba(20,24,28,.10);
  --sh-2:0 14px 34px -16px rgba(20,24,28,.20);
  --sec-y:96px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-paper);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{font-family:inherit;color:var(--c-ink);margin:0;line-height:1.35}
p{margin:0 0 1.2em}
a{color:var(--c-brand);text-decoration:none;transition:color .22s cubic-bezier(.22,.61,.36,1)}
a:hover{color:var(--c-brand-dark)}
img{max-width:100%;height:auto;display:block}
ul,ol{margin:0}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(255,255,255,.9)}
.grid-container{max-width:1200px;padding-left:32px;padding-right:32px}
.grid-x{max-width:100%}

/* ---------- 阅读进度 ---------- */
.read-progress{
  position:fixed;top:0;left:0;height:2px;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--c-brand),var(--c-accent));
  z-index:80;transition:transform .1s linear;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;
  transition:height .26s cubic-bezier(.22,.61,.36,1),border-color .26s,background .26s,box-shadow .26s;
}
.site-header.is-compact{
  border-bottom-color:var(--c-line);
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  box-shadow:0 6px 18px -16px rgba(20,24,28,.35);
}
.nav-inner{
  display:flex;align-items:center;gap:28px;
  min-height:88px;
  transition:min-height .26s cubic-bezier(.22,.61,.36,1);
}
.site-header.is-compact .nav-inner{min-height:64px}
.logo{display:flex;flex-direction:column;line-height:1.1;flex:0 0 auto}
.logo-main{font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--c-ink)}
.logo-sub{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--c-accent);margin-top:3px}
.nav-search{flex:1 1 auto;max-width:560px;margin:0 auto}
.search-form{
  position:relative;display:flex;align-items:center;
  height:46px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-chip);
  transition:border-color .22s,box-shadow .22s,background .22s;
}
.search-form:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-focus)}
.search-icon{
  position:absolute;left:18px;width:18px;height:18px;
  fill:none;stroke:var(--c-mute);stroke-width:1.8;stroke-linecap:round;
}
.search-form input[type="search"]{
  flex:1 1 auto;height:100%;border:0;background:transparent;
  padding:0 96px 0 48px;font-size:14px;color:var(--c-ink);
  border-radius:var(--r-chip);outline:none;
}
.search-form input[type="search"]::placeholder{color:var(--c-mute)}
.search-form button{
  position:absolute;right:5px;top:5px;bottom:5px;
  padding:0 20px;border:0;border-radius:var(--r-btn);
  background:var(--c-brand);color:#fff;font-size:14px;font-weight:600;
  transition:background .22s,transform .22s;
}
.search-form button:hover{background:var(--c-brand-dark)}
.chip-row{
  display:flex;gap:8px;margin-top:8px;overflow-x:auto;
  scrollbar-width:none;padding-bottom:2px;
}
.chip-row::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:30px;
  padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-chip);
  background:var(--c-surface);color:var(--c-ink-2);font-size:13px;white-space:nowrap;
  transition:background .22s,border-color .22s,color .22s,transform .22s;
}
.chip:hover{background:var(--c-brand-soft);border-color:var(--c-brand-soft);color:var(--c-brand-dark);transform:translateY(-1px)}
.chip.is-active{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-tel{font-size:14px;color:var(--c-ink-2);border-bottom:2px solid transparent;padding-bottom:2px}
.nav-tel:hover{color:var(--c-brand);border-bottom-color:var(--c-brand)}
.nav-search-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);
}
.nav-search-toggle svg{width:18px;height:18px;fill:none;stroke:var(--c-ink);stroke-width:1.8;stroke-linecap:round}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  transition:background .24s,border-color .24s,color .24s,transform .24s,box-shadow .24s;
}
.btn-primary{background:var(--c-brand);color:#fff}
.btn-primary:hover{background:var(--c-brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-secondary{background:transparent;border-color:var(--c-ink);color:var(--c-ink)}
.btn-secondary:hover{background:var(--c-ink);color:#fff;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--c-ink)}
.btn-light:hover{background:var(--c-brand-soft);color:var(--c-brand-dark);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--c-ink);position:relative;padding-bottom:2px;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--c-accent);transform:scaleX(0);transform-origin:0 50%;
  transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.link-arrow:hover{color:var(--c-brand)}
.link-arrow:hover::after{transform:scaleX(1)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-mute);padding:22px 0 0;
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:var(--c-line)}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-brand);text-decoration:underline}
.breadcrumb .current{color:var(--c-mute)}
.breadcrumb .current a{color:var(--c-mute)}

/* ---------- 文章头 ---------- */
.article-hero{padding:14px 0 40px;background:var(--c-paper)}
.article-hero-inner{max-width:860px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-chip);font-size:12px;font-weight:600;
  background:var(--c-brand-soft);color:var(--c-brand);
  transition:background .22s,color .22s;
}
.tag:hover{background:var(--c-brand);color:#fff}
.tag-accent{background:var(--c-accent-soft);color:var(--c-accent)}
.tag-plain{background:transparent;border:1px solid var(--c-line);color:var(--c-ink-2);font-weight:500}
.tag-plain:hover{background:var(--c-brand-soft);border-color:var(--c-brand-soft);color:var(--c-brand-dark)}
.article-hero h1{
  font-size:clamp(28px,3.6vw,44px);font-weight:800;letter-spacing:-.02em;
  line-height:1.16;margin:0 0 18px;
}
.article-lead{font-size:17px;color:var(--c-mute);max-width:720px;margin-bottom:22px}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--c-mute);
  border-top:1px solid var(--c-line);padding-top:16px;
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line);display:inline-block}
.meta-row .serif{font-family:"Noto Serif SC",Georgia,serif;color:var(--c-accent);font-weight:600}

/* ---------- 主体栅格 ---------- */
.article-main{padding-bottom:var(--sec-y)}
.article-col{min-width:0}
.article-body{
  max-width:760px;font-size:17px;line-height:1.9;color:var(--c-ink-2);
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:38px 40px;box-shadow:var(--sh-1);
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  position:relative;font-size:clamp(21px,2.1vw,27px);font-weight:700;
  color:var(--c-ink);margin:2.2em 0 .8em;padding-left:20px;line-height:1.35;
  scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;width:3px;height:1.05em;
  background:var(--c-brand);border-radius:2px;
}
.article-body h3{
  font-size:20px;font-weight:700;color:var(--c-ink);
  margin:1.8em 0 .6em;scroll-margin-top:96px;
}
.article-body h4{font-size:17px;font-weight:700;color:var(--c-ink);margin:1.4em 0 .5em}
.article-body p{margin:0 0 1.2em}
.article-body strong{color:var(--c-ink);font-weight:700}
.article-body img{border-radius:var(--r-card);margin:1.4em 0 .6em;width:100%}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--c-mute);text-align:center;line-height:1.6}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--c-paper);
  border-left:3px solid var(--c-accent);border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--c-ink);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{padding-left:1.5em;margin:0 0 1.2em}
.article-body li{margin:.42em 0;padding-left:.25em}
.article-body li::marker{color:var(--c-accent)}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;line-height:1.7;
}
.article-body thead th{
  background:var(--c-brand-soft);color:var(--c-ink);
  border:1px solid var(--c-line);padding:11px 13px;text-align:left;font-weight:700;
}
.article-body td{border:1px solid var(--c-line);padding:11px 13px}
.article-body tbody tr:nth-child(even){background:#FBFAF8}
.article-body pre{
  overflow-x:auto;background:var(--c-ink);color:#EAE7E1;
  padding:16px 18px;border-radius:var(--r-card);font-size:14px;line-height:1.7;margin:1.6em 0;
}
.article-body code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.92em}
.article-body p code,.article-body li code{
  background:var(--c-brand-soft);color:var(--c-brand-dark);padding:2px 6px;border-radius:4px;
}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2.4em 0}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:64px 28px;background:var(--c-surface);
  border:1px dashed var(--c-line);border-radius:var(--r-card);
}
.empty-state svg{width:40px;height:40px;fill:none;stroke:var(--c-mute);stroke-width:1.6;margin:0 auto 16px;stroke-linecap:round}
.empty-state p{font-size:15px;color:var(--c-mute);margin-bottom:20px}

/* ---------- 侧栏 ---------- */
.sidebar-col{min-width:0}
.side-sticky{position:sticky;top:96px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
}
.side-title{
  font-size:14px;font-weight:700;color:var(--c-ink);letter-spacing:.02em;
  padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid var(--c-line);
}
.toc-list{list-style:none;padding:0;margin:0;max-height:44vh;overflow-y:auto}
.toc-list li{margin:0}
.toc-link{
  display:block;font-size:14px;color:var(--c-ink-2);line-height:1.6;
  padding:7px 0 7px 12px;border-left:2px solid transparent;
  transition:color .22s,border-color .22s,background .22s;
}
.toc-link:hover{color:var(--c-brand);background:var(--c-brand-soft)}
.toc-link.is-active{color:var(--c-brand);border-left-color:var(--c-brand);font-weight:600}
.toc-link.toc-h3{padding-left:24px;font-size:13px;color:var(--c-mute)}
.toc-empty{font-size:13px;color:var(--c-mute);padding:4px 0 4px 12px}
.side-cta{
  margin-top:20px;background:var(--c-ink);color:#D9D6D0;
  border-radius:var(--r-card);padding:26px;border:1px solid rgba(255,255,255,.12);
}
.side-cta h3{color:#fff;font-size:18px;font-weight:700;margin-bottom:10px}
.side-cta p{font-size:14px;line-height:1.8;color:#B7B3AC;margin-bottom:18px}
.side-cta .btn{width:100%}
.side-stats{margin-top:20px;border-top:1px solid var(--c-line);padding-top:16px;display:flex;gap:22px}
.side-stats div{flex:1}
.side-stats .num{
  font-family:"Noto Serif SC",Georgia,serif;font-size:24px;font-weight:700;
  color:var(--c-accent);line-height:1.2;
}
.side-stats .cap{font-size:12px;color:var(--c-mute)}

/* ---------- 文末标签 ---------- */
.article-foot{margin-top:34px;max-width:760px}
.article-foot .foot-label{
  font-size:13px;color:var(--c-mute);margin-right:10px;display:inline-block;
}

/* ---------- 上下篇 ---------- */
.nav-posts{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
  margin-top:34px;max-width:900px;
}
.nav-post{
  display:flex;gap:16px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:18px;transition:box-shadow .26s,transform .26s,border-color .26s;
}
.nav-post:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--c-brand-soft)}
.nav-post img{width:86px;height:64px;object-fit:cover;border-radius:8px;flex:0 0 auto}
.nav-post .np-label{font-size:12px;color:var(--c-mute);display:block;margin-bottom:4px}
.nav-post .np-title{
  font-size:15px;font-weight:700;color:var(--c-ink);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.nav-post:hover .np-title{color:var(--c-brand)}

/* ---------- 相关推荐 ---------- */
.related{padding:var(--sec-y) 0 0}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:34px;flex-wrap:wrap;
}
.sec-head h2{font-size:clamp(23px,2.4vw,32px);font-weight:700;letter-spacing:-.01em}
.sec-head p{font-size:15px;color:var(--c-mute);margin:8px 0 0}
.list-row{
  display:flex;gap:20px;align-items:center;padding:18px 0;
  border-bottom:1px solid var(--c-line);position:relative;
}
.list-row::after{
  content:"";position:absolute;left:0;bottom:-1px;height:1px;width:100%;
  background:var(--c-accent);transform:scaleX(0);transform-origin:0 50%;
  transition:transform .3s cubic-bezier(.22,.61,.36,1);
}
.list-row:hover::after{transform:scaleX(1)}
.list-row .thumb{
  width:96px;height:72px;flex:0 0 auto;border-radius:8px;overflow:hidden;
  transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.list-row .thumb img{width:100%;height:100%;object-fit:cover}
.list-row:hover .thumb{transform:translateX(2px)}
.list-row .body{min-width:0;flex:1 1 auto}
.list-row h3{
  font-size:16px;font-weight:700;color:var(--c-ink);line-height:1.5;margin-bottom:4px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.list-row:hover h3{color:var(--c-brand)}
.list-row p{
  font-size:14px;color:var(--c-mute);margin:0 0 8px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.list-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--c-mute);flex-wrap:wrap}
.list-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line)}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-ink);color:#D9D6D0;margin-top:var(--sec-y);padding:80px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,34px);font-weight:700;margin-bottom:14px;letter-spacing:-.01em}
.cta-band p{color:#B7B3AC;font-size:15px;line-height:1.85;margin-bottom:22px}
.cta-band .chip-row{margin-top:8px}
.cta-band .chip{background:transparent;border-color:rgba(255,255,255,.24);color:#D9D6D0}
.cta-band .chip:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.4);color:#fff}
.cta-form{
  background:#1B2026;border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);padding:28px;
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:#B7B3AC;margin-bottom:8px}
.field input{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.16);background:#14181C;color:#F2F0EC;
  font-size:15px;outline:none;transition:border-color .22s,box-shadow .22s;
}
.field input::placeholder{color:#6E7479}
.field input:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-focus)}
.cta-form .btn-primary{width:100%;margin-top:6px}
.form-note{font-size:12px;color:#8A8F94;margin:12px 0 0;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#B7B3AC;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand-line{display:flex;flex-direction:column;line-height:1.1;margin-bottom:14px}
.footer-brand-main{font-size:20px;font-weight:800;color:#fff}
.footer-brand-sub{font-size:11px;letter-spacing:.12em;color:var(--c-accent);margin-top:4px}
.footer-desc{font-size:14px;line-height:1.8;color:#9AA0A5;margin:0}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links,.footer-contact{list-style:none;padding:0;margin:0}
.footer-links li,.footer-contact li{margin-bottom:10px;font-size:14px;line-height:1.6}
.footer-links a,.footer-contact a{color:#B7B3AC;transition:color .22s,transform .22s;display:inline-block}
.footer-links a:hover,.footer-contact a:hover{color:var(--c-brand-soft);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A8F94;
}
.footer-bottom a{color:#8A8F94}
.footer-bottom a:hover{color:var(--c-brand-soft)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sec-y:72px}
  .nav-inner{flex-wrap:wrap;row-gap:10px;min-height:0;padding-top:14px;padding-bottom:12px}
  .site-header.is-compact .nav-inner{min-height:0}
  .nav-search{order:3;flex:1 0 100%;max-width:none;margin:0}
  .search-form{display:none}
  .nav-search.is-open .search-form{display:flex}
  .nav-search-toggle{display:inline-flex}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .side-sticky{position:static}
}
@media (max-width:768px){
  :root{--sec-y:56px}
  .grid-container{padding-left:18px;padding-right:18px}
  .article-hero{padding-bottom:28px}
  .article-body{padding:24px 20px;font-size:16px}
  .nav-actions .nav-tel{display:none}
  .nav-posts{grid-template-columns:1fr}
  .list-row .thumb{width:78px;height:62px}
  .cta-band{padding:56px 0}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .logo-main{font-size:18px}
  .nav-actions{gap:10px}
  .btn{padding:0 18px;font-size:14px}
  .nav-post img{width:70px;height:56px}
  .listing h3{font-size:15px}
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --c-ink:#14181C;
  --c-ink-2:#3D444B;
  --c-mute:#7A8288;
  --c-line:#E4E1DB;
  --c-paper:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-brand:#0E6E63;
  --c-brand-dark:#0A544C;
  --c-brand-soft:#E3F0EE;
  --c-accent:#B9703D;
  --c-accent-soft:#F0E4D6;
  --c-focus:rgba(14,110,99,.16);
  --r-btn:6px;
  --r-card:10px;
  --r-chip:999px;
  --sh-1:0 1px 2px rgba(20,24,28,.04), 0 8px 24px -14px rgba(20,24,28,.10);
  --sh-2:0 14px 34px -16px rgba(20,24,28,.20);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",SimSun,serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-paper);
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{font-family:var(--font-sans);color:var(--c-ink);margin:0;font-weight:700;}
h1{font-size:clamp(30px,4.4vw,56px);line-height:1.12;font-weight:800;letter-spacing:-.02em;}
h2{font-size:clamp(24px,2.6vw,36px);line-height:1.25;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:700;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
a{color:var(--c-brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-brand-dark);}
img{max-width:100%;display:block;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;box-shadow:0 0 0 2px #fff;}

/* ---------- Foundation 覆盖层 ---------- */
.grid-container{max-width:1200px;padding-left:32px;padding-right:32px;}
body .button,body button{font-family:var(--font-sans);}
.grid-x{min-width:0;}
.cell{min-width:0;}
.grid-margin-x>.cell{padding:0;}

/* ---------- 通用布局 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{margin-bottom:16px;}
.section-head p{color:var(--c-ink-2);font-size:17px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--c-accent);
  font-weight:600;
  margin-bottom:14px;
}
.lead{font-size:17px;color:var(--c-ink-2);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-brand);color:#fff;border-color:var(--c-brand);}
.btn-primary:hover{background:var(--c-brand-dark);border-color:var(--c-brand-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--c-ink);border:1.5px solid var(--c-ink);}
.btn-ghost:hover{background:var(--c-ink);color:#fff;border-color:var(--c-ink);}
.btn-block{width:100%;}
.btn-link{
  position:relative;display:inline-block;font-size:14px;font-weight:600;
  color:var(--c-ink);padding-bottom:5px;
}
.btn-link::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;
  background:var(--c-accent);transform:scaleX(.22);transform-origin:left;
  transition:transform .24s var(--ease);
}
.btn-link:hover{color:var(--c-brand);}
.btn-link:hover::after{transform:scaleX(1);}

/* ---------- 徽章 / chip ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-chip);font-size:12px;font-weight:600;line-height:1;
}
.badge-brand{background:var(--c-brand-soft);color:var(--c-brand);}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent);}
.chip{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-chip);border:1px solid var(--c-line);background:var(--c-surface);
  font-size:13px;color:var(--c-ink-2);white-space:nowrap;line-height:1;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.chip:hover{background:var(--c-brand-soft);border-color:rgba(14,110,99,.4);color:var(--c-brand);}
.chip.is-active{background:var(--c-brand-soft);border-color:rgba(14,110,99,.45);color:var(--c-brand);font-weight:600;}
.chip-row{display:flex;flex-wrap:nowrap;gap:8px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px;}
.chip-row::-webkit-scrollbar{display:none;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  transition:background-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-stuck{box-shadow:0 10px 30px -22px rgba(20,24,28,.5);}
.nav-inner{
  display:flex;align-items:center;gap:26px;
  height:88px;transition:height .25s var(--ease);
}
.site-header.is-stuck .nav-inner{height:64px;}
.logo{display:flex;flex-direction:column;justify-content:center;line-height:1;flex:0 0 auto;}
.logo-main{font-size:20px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em;}
.logo-sub{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--c-accent);margin-top:4px;}
.logo:hover .logo-main{color:var(--c-brand);}
.nav-search{flex:1 1 auto;display:flex;flex-direction:column;align-items:center;gap:8px;max-width:600px;margin:0 auto;}
.search-form{
  position:relative;display:flex;align-items:center;gap:8px;
  width:100%;max-width:520px;height:46px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-chip);
  padding:0 5px 0 44px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-focus);}
.search-icon{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  width:20px;height:20px;fill:none;stroke:var(--c-mute);stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round;
}
.search-form input[type="search"]{
  flex:1 1 auto;min-width:0;height:100%;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--c-ink);-webkit-appearance:none;appearance:none;
}
.search-form input[type="search"]::placeholder{color:var(--c-mute);}
.search-form button{
  flex:0 0 auto;height:36px;padding:0 18px;border:0;border-radius:var(--r-btn);
  background:var(--c-brand);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .2s var(--ease);
}
.search-form button:hover{background:var(--c-brand-dark);}
.nav-search .chip-row{width:100%;justify-content:center;}
.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.nav-tel{font-size:13px;color:var(--c-mute);white-space:nowrap;}
.nav-tel:hover{color:var(--c-brand);}
.nav-search-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:var(--c-surface);cursor:pointer;
}
.nav-search-toggle svg{width:20px;height:20px;fill:none;stroke:var(--c-ink);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.nav-search-toggle:hover{border-color:var(--c-brand);}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-mute);margin-bottom:22px;}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--c-line);}
.breadcrumb a{color:var(--c-mute);}
.breadcrumb a:hover{color:var(--c-brand);text-decoration:underline;}
.breadcrumb .current{color:var(--c-mute);}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;padding:56px 0 72px;overflow:hidden;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
}
.cat-hero::before{content:"";position:absolute;inset:0;background:rgba(247,245,241,.88);}
.cat-hero .grid-container{position:relative;z-index:1;}
.hero-index{
  font-family:var(--font-serif);font-size:clamp(46px,7vw,88px);line-height:.9;
  color:var(--c-accent);letter-spacing:-.03em;margin-bottom:18px;
}
.hero-title{margin-bottom:20px;max-width:15em;}
.hero-sub{font-size:17px;color:var(--c-ink-2);max-width:620px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;}
.hero-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);margin-top:36px;
}
.hero-card h3{font-size:17px;margin-bottom:16px;}
.hero-fact{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--c-line);}
.hero-fact:first-of-type{border-top:0;padding-top:0;}
.hero-fact .num{font-family:var(--font-serif);font-size:20px;color:var(--c-accent);line-height:1.2;flex:0 0 auto;}
.hero-fact .txt{font-size:14px;color:var(--c-ink-2);line-height:1.7;}
.hero-fact .txt strong{display:block;color:var(--c-ink);font-size:15px;font-weight:700;margin-bottom:2px;}

/* ---------- 左侧吸顶 + 图文交替 ---------- */
.side-sticky{position:sticky;top:112px;}
.side-title{font-size:24px;line-height:1.35;margin-bottom:16px;}
.side-text{font-size:15px;color:var(--c-ink-2);margin-bottom:20px;}
.side-list{margin-bottom:24px;}
.side-list li{
  position:relative;padding-left:20px;font-size:14px;color:var(--c-mute);
  line-height:1.9;
}
.side-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:1px;background:var(--c-accent);
}
.path-list{display:flex;flex-direction:column;gap:56px;}
.path-block{padding-bottom:56px;border-bottom:1px solid var(--c-line);}
.path-block:last-child{border-bottom:0;padding-bottom:0;}
.path-media{overflow:hidden;border-radius:var(--r-card);margin-bottom:22px;}
.path-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);
  transition:transform .8s var(--ease);
}
.path-media:hover img{transform:scale(1.03);}
.path-step{
  display:inline-block;font-size:13px;font-weight:600;color:var(--c-accent);
  letter-spacing:.08em;margin-bottom:12px;
}
.path-body h3{margin-bottom:14px;}
.path-body p{font-size:16px;color:var(--c-ink-2);}
.dot-list{margin-top:20px;}
.dot-list li{
  position:relative;padding-left:18px;font-size:15px;color:var(--c-ink-2);
  line-height:1.9;margin-bottom:8px;
}
.dot-list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;
  border-radius:50%;background:var(--c-brand-soft);border:1.5px solid var(--c-brand);
}

/* ---------- 对照卡 ---------- */
.compare-grid{margin-top:8px;}
.compare-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;height:100%;box-shadow:var(--sh-1);
  transition:box-shadow .3s var(--ease),transform .3s var(--ease);
}
.compare-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.compare-card.is-brand{border-color:rgba(14,110,99,.35);}
.compare-head{display:flex;align-items:center;gap:10px;margin-bottom:20px;}
.compare-head h3{font-size:18px;}
.compare-row{
  display:flex;gap:16px;padding:14px 0;border-top:1px solid var(--c-line);
  font-size:14px;line-height:1.75;
}
.compare-row:first-of-type{border-top:0;padding-top:0;}
.compare-row .key{flex:0 0 88px;color:var(--c-mute);font-size:13px;padding-top:2px;}
.compare-row .val{flex:1 1 auto;color:var(--c-ink-2);}
.compare-card.is-brand .compare-row .val{color:var(--c-ink);}

/* ---------- 准备清单 ---------- */
.check-list{margin-top:8px;}
.check-item{
  display:flex;gap:18px;align-items:flex-start;
  padding:22px 0;border-bottom:1px solid var(--c-line);
  transition:border-color .24s var(--ease);
}
.check-item:first-child{border-top:1px solid var(--c-line);}
.check-item:hover{border-bottom-color:var(--c-brand);}
.check-icon{
  flex:0 0 auto;width:36px;height:36px;border-radius:var(--r-btn);
  background:var(--c-brand-soft);display:flex;align-items:center;justify-content:center;
}
.check-icon svg{width:18px;height:18px;fill:none;stroke:var(--c-brand);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.check-text h3{font-size:16px;margin-bottom:4px;}
.check-text p{font-size:14px;color:var(--c-mute);margin:0;line-height:1.75;}
.check-tag{flex:0 0 auto;align-self:center;}

/* ---------- 步骤卡 ---------- */
.step-grid{margin-top:8px;}
.step-card{
  position:relative;padding:26px 0 0;border-top:1px solid var(--c-line);
  height:100%;transition:border-color .24s var(--ease);
}
.step-card:hover{border-top-color:var(--c-brand);}
.step-num{
  font-family:var(--font-serif);font-size:38px;line-height:1;
  color:var(--c-accent);margin-bottom:14px;display:block;
}
.step-card h3{font-size:17px;margin-bottom:10px;}
.step-card p{font-size:14px;color:var(--c-ink-2);line-height:1.8;margin:0;}

/* ---------- CTA 深色区块 ---------- */
.section-cta{
  background:var(--c-ink);color:rgba(255,255,255,.78);
  padding:96px 0;position:relative;overflow:hidden;
}
.section-cta::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(14,110,99,.32),rgba(14,110,99,0) 68%);
  pointer-events:none;
}
.section-cta .grid-container{position:relative;z-index:1;}
.cta-text h2{color:#fff;margin-bottom:18px;}
.cta-text p{color:rgba(255,255,255,.76);font-size:16px;}
.cta-points{margin-top:26px;}
.cta-points li{
  position:relative;padding-left:20px;font-size:14px;color:rgba(255,255,255,.72);
  line-height:1.9;
}
.cta-points li::before{
  content:"";position:absolute;left:0;top:13px;width:8px;height:1px;background:var(--c-accent);
}
.cta-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:28px;border-top:1px solid rgba(255,255,255,.12);}
.cta-chips .chip{background:transparent;border-color:rgba(255,255,255,.28);color:rgba(255,255,255,.86);}
.cta-chips .chip:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);color:#fff;}

/* ---------- 表单 ---------- */
.lead-form{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);padding:28px;
}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:13px;color:rgba(255,255,255,.82);margin-bottom:8px;}
.form-row input[type="text"],
.form-row input[type="tel"],
.form-row textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.95);
  color:var(--c-ink);font-size:15px;outline:0;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-row textarea{height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-row input:focus,.form-row textarea:focus{
  border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-focus);
}
.form-error{display:none;font-size:13px;color:var(--c-accent);margin-top:6px;}
.form-error.is-show{display:block;}
.form-check{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px;}
.form-check input{width:16px;height:16px;margin-top:5px;accent-color:var(--c-brand);flex:0 0 auto;}
.form-check span{font-size:13px;color:rgba(255,255,255,.66);line-height:1.7;}
.form-success{
  display:none;margin-top:16px;padding:14px 16px;border-radius:var(--r-btn);
  background:rgba(14,110,99,.28);border:1px solid rgba(14,110,99,.5);
  color:#fff;font-size:14px;
}
.form-success.is-show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:72px 0 0;}
.footer-grid{margin-bottom:48px;}
.footer-brand-line{display:flex;flex-direction:column;line-height:1;margin-bottom:18px;}
.footer-brand-main{font-size:20px;font-weight:800;color:#fff;}
.footer-brand-sub{font-size:11px;letter-spacing:.12em;color:var(--c-accent);margin-top:5px;}
.footer-desc{font-size:14px;color:rgba(255,255,255,.6);line-height:1.85;max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-links li,.footer-contact li{margin-bottom:11px;}
.footer-links a,.footer-contact a{font-size:14px;color:rgba(255,255,255,.68);display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-links a:hover,.footer-contact a:hover{color:var(--c-brand-soft);transform:translateX(2px);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.68);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--c-brand-soft);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .32s var(--ease),transform .32s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .nav-search{max-width:520px;}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .section-cta{padding:72px 0;}
  .grid-container{padding-left:24px;padding-right:24px;}
  .nav-search{display:none;}
  .site-header.search-open .nav-search{
    display:flex;position:absolute;left:0;right:0;top:100%;
    max-width:none;margin:0;padding:18px 24px 16px;
    background:#fff;border-bottom:1px solid var(--c-line);
    box-shadow:var(--sh-1);
  }
  .nav-search .chip-row{justify-content:flex-start;}
  .nav-search-toggle{display:inline-flex;}
  .side-sticky{position:static;margin-bottom:36px;}
  .hero-card{margin-top:0;}
  .site-footer{padding-top:56px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .section-cta{padding:56px 0;}
  .nav-inner{gap:14px;height:68px;}
  .site-header.is-stuck .nav-inner{height:60px;}
  .nav-tel{display:none;}
  .nav-actions .btn{padding:0 18px;font-size:14px;}
  .path-list{gap:40px;}
  .path-block{padding-bottom:40px;}
  .compare-card{padding:22px;margin-bottom:20px;}
  .hero-sub{font-size:16px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .logo-main{font-size:18px;}
  .hero-actions .btn{width:100%;}
  .hero-actions{gap:12px;}
  .compare-row{flex-direction:column;gap:4px;}
  .compare-row .key{flex:0 0 auto;}
  .check-item{gap:12px;}
  .lead-form{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --c-ink:#14181C;
  --c-ink-2:#3D444B;
  --c-mute:#7A8288;
  --c-line:#E4E1DB;
  --c-paper:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-brand:#0E6E63;
  --c-brand-dark:#0A544C;
  --c-brand-soft:#E3F0EE;
  --c-accent:#B9703D;
  --c-accent-soft:#F0E4D6;
  --c-focus:rgba(14,110,99,.16);
  --r-btn:6px;
  --r-card:10px;
  --r-chip:999px;
  --sh-1:0 1px 2px rgba(20,24,28,.04),0 8px 24px -14px rgba(20,24,28,.10);
  --sh-2:0 14px 34px -16px rgba(20,24,28,.20);
  --space-section:96px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",SimSun,serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-ink-2);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
@media (min-width:1024px){ body{font-size:17px} }
a{color:var(--c-brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-brand-dark)}
img{max-width:100%;height:auto;display:block}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;box-shadow:0 0 0 2px #fff}

h1{font-size:clamp(30px,4.4vw,50px);line-height:1.12;font-weight:800;letter-spacing:-.02em;color:var(--c-ink)}
h2{font-size:clamp(24px,2.6vw,36px);line-height:1.25;font-weight:700;color:var(--c-ink);letter-spacing:-.01em}
h3{font-size:20px;line-height:1.4;font-weight:700;color:var(--c-ink)}

/* ============ 容器与板块 ============ */
.grid-container{max-width:1200px;padding-left:32px;padding-right:32px;margin-left:auto;margin-right:auto}
@media (max-width:1023px){ .grid-container{padding-left:24px;padding-right:24px} }
@media (max-width:767px){ .grid-container{padding-left:18px;padding-right:18px} }

.section{padding:var(--space-section) 0}
.section--tight{padding:64px 0}
.section--paper{background:var(--c-paper)}
.section--white{background:var(--c-surface)}
.section--soft{background:var(--c-brand-soft)}
@media (max-width:1023px){ .section{padding:72px 0} }
@media (max-width:767px){ .section{padding:56px 0} }

.section-head{max-width:760px;margin-bottom:48px}
.section-head .kicker{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--c-accent);text-transform:uppercase;margin-bottom:14px;
}
.section-head h2{margin-bottom:14px}
.section-head p{font-size:16px;color:var(--c-ink-2)}
@media (max-width:767px){ .section-head{margin-bottom:32px} }

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -20px rgba(20,24,28,.35)}
.nav-inner{
  display:flex;align-items:center;gap:26px;
  padding-top:14px;padding-bottom:12px;
  transition:padding .25s var(--ease);
}
.site-header.is-scrolled .nav-inner{padding-top:8px;padding-bottom:8px}

.logo{display:flex;flex-direction:column;line-height:1;flex:0 0 auto}
.logo-main{font-size:20px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em}
.logo-sub{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--c-accent);margin-top:4px}

.nav-search{flex:1 1 auto;min-width:0;max-width:560px}
.search-form{
  position:relative;display:flex;align-items:center;
  height:46px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-chip);padding:0 5px 0 16px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-focus)}
.search-icon{width:18px;height:18px;flex:0 0 auto;stroke:var(--c-mute);stroke-width:1.8;fill:none;stroke-linecap:round}
.search-form input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;height:100%;
  padding:0 12px;font-size:15px;color:var(--c-ink-2);outline:none;
}
.search-form input::placeholder{color:var(--c-mute)}
.search-form button{
  flex:0 0 auto;height:36px;padding:0 20px;border:0;border-radius:var(--r-btn);
  background:var(--c-brand);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background .2s var(--ease);
}
.search-form button:hover{background:var(--c-brand-dark)}

.chip-row{display:flex;gap:8px;margin-top:10px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none}
.chip-row::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:30px;padding:0 14px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-chip);
  font-size:13px;color:var(--c-ink-2);white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{background:var(--c-brand-soft);border-color:var(--c-brand-soft);color:var(--c-brand-dark)}
.chip.is-active{background:var(--c-ink);border-color:var(--c-ink);color:#fff;font-weight:600}

.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.nav-tel{font-size:14px;color:var(--c-ink-2);border-bottom:1px solid transparent;padding-bottom:2px}
.nav-tel:hover{color:var(--c-brand);border-bottom-color:var(--c-brand)}
.nav-search-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-search-toggle svg{width:18px;height:18px;stroke:var(--c-ink);stroke-width:1.8;fill:none;stroke-linecap:round}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1.5px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--c-brand);color:#fff}
.btn-primary:hover{background:var(--c-brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;border-color:var(--c-ink);color:var(--c-ink)}
.btn-ghost:hover{background:var(--c-ink);color:#fff}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-brand);
  border-bottom:2px solid transparent;padding-bottom:2px;transition:border-color .24s var(--ease),color .2s var(--ease);
}
.btn-link:hover{border-bottom-color:var(--c-accent);color:var(--c-brand-dark)}
.btn-link svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* ============ 标签徽章 ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-chip);
  background:var(--c-brand-soft);color:var(--c-brand);font-size:12px;font-weight:600;
}
.badge--status{background:var(--c-accent-soft);color:var(--c-accent)}

/* ============ 面包屑 ============ */
.crumb{margin-bottom:26px}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-mute)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--c-line)}
.crumb a{color:var(--c-ink-2)}
.crumb a:hover{color:var(--c-brand);text-decoration:underline}
.crumb [aria-current="page"]{color:var(--c-mute)}

/* ============ 分类页 Hero ============ */
.page-hero{position:relative;overflow:hidden;background:var(--c-paper);padding:56px 0 72px}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(247,245,241,.90) 0%,rgba(247,245,241,.97) 70%,var(--c-paper) 100%);
}
.page-hero .grid-container{position:relative;z-index:2}

.hero-num{
  display:block;font-family:var(--font-serif);font-size:clamp(56px,8vw,104px);
  line-height:1;font-weight:600;color:var(--c-accent);opacity:.22;margin-bottom:6px;
}
.page-hero h1{max-width:16em}
.hero-lead{
  margin-top:20px;max-width:640px;font-size:17px;line-height:1.85;color:var(--c-ink-2);
}
.hero-points{margin-top:8px;border-left:1px solid var(--c-line);padding-left:26px}
.hero-points li{
  padding:14px 0;border-bottom:1px solid var(--c-line);
  font-size:15px;color:var(--c-ink-2);display:flex;gap:10px;align-items:flex-start;
}
.hero-points li:last-child{border-bottom:0}
.hero-points .dot{flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--c-accent);margin-top:11px}
@media (max-width:1023px){
  .hero-points{margin-top:36px;border-left:0;padding-left:0;border-top:1px solid var(--c-line);padding-top:10px}
  .page-hero{padding:36px 0 56px}
}

/* ============ 场景卡 2×2 ============ */
.scene-grid{margin-top:-12px}
.scene-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
  margin-bottom:24px;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.scene-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-brand-soft)}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.scene-card:hover .scene-media img{transform:scale(1.03)}
.scene-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.scene-body h3{font-size:19px}
.scene-body p{font-size:15px;line-height:1.85;color:var(--c-ink-2);margin:0}
.scene-foot{margin-top:auto;padding-top:8px}
@media (max-width:767px){ .scene-body{padding:18px} }

/* ============ 对比表 ============ */
.compare-wrap{margin-top:8px}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--r-card)}
table.compare{
  width:100%;min-width:720px;border-collapse:collapse;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
}
table.compare th,
table.compare td{padding:18px 22px;text-align:left;font-size:15px;line-height:1.7;border-bottom:1px solid var(--c-line)}
table.compare thead th{
  background:var(--c-brand-soft);color:var(--c-brand-dark);font-weight:700;font-size:14px;
  letter-spacing:.02em;border-bottom:1px solid var(--c-line);
}
table.compare tbody tr:nth-child(even){background:#FCFBF8}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare td:first-child{width:150px;font-weight:600;color:var(--c-ink)}
table.compare td:nth-child(2){color:var(--c-ink-2)}
table.compare td:nth-child(3){color:var(--c-mute)}
.table-note{margin-top:14px;font-size:13px;color:var(--c-mute)}

/* ============ 四步流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:8px}
.flow-item{position:relative;padding:26px 26px 0 0;border-top:1px solid var(--c-line);transition:border-color .3s var(--ease)}
.flow-item:hover{border-top-color:var(--c-brand)}
.flow-item .num{
  font-family:var(--font-serif);font-size:34px;line-height:1;font-weight:600;
  color:var(--c-accent);display:block;margin-bottom:16px;
}
.flow-item h3{font-size:18px;margin-bottom:10px}
.flow-item p{font-size:15px;color:var(--c-ink-2);line-height:1.8}
.flow-item::after{
  content:"";position:absolute;right:16px;top:38px;width:24px;height:1px;
  border-top:1px dashed var(--c-line);
}
.flow-item:last-child::after{display:none}
@media (max-width:1023px){
  .flow{grid-template-columns:repeat(2,1fr);gap:0 24px}
  .flow-item::after{display:none}
}
@media (max-width:600px){
  .flow{grid-template-columns:1fr}
  .flow-item{padding:22px 0 0}
}

/* ============ FAQ 手风琴 ============ */
.faq-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:8px 28px}
.faq-list{margin:0;border:0;background:transparent}
.faq-list .accordion-item{border:0;border-bottom:1px solid var(--c-line);background:transparent}
.faq-list .accordion-item:last-child{border-bottom:0}
.faq-list .accordion-title{
  position:relative;padding:24px 48px 24px 0;border:0;background:transparent;
  font-size:17px;font-weight:700;color:var(--c-ink);line-height:1.55;
  transition:color .2s var(--ease);
}
.faq-list .accordion-title:hover{color:var(--c-brand)}
.faq-list .accordion-title::before{
  content:"";position:absolute;right:6px;top:50%;width:14px;height:2px;background:var(--c-brand);
  transform:translateY(-50%);transition:transform .3s var(--ease);
}
.faq-list .accordion-title::after{
  content:"";position:absolute;right:12px;top:50%;width:2px;height:14px;background:var(--c-brand);
  transform:translateY(-50%);transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.faq-list .accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(90deg);opacity:0}
.faq-list .accordion-title::before,
.faq-list .accordion-title::after{pointer-events:none}
.faq-list .accordion-content{
  padding:0 48px 26px 0;border:0;background:transparent;
  font-size:15px;line-height:1.85;color:var(--c-ink-2);
}
.faq-list .accordion-content p{margin:0}
@media (max-width:767px){
  .faq-wrap{padding:4px 18px}
  .faq-list .accordion-title{font-size:16px;padding:20px 40px 20px 0}
  .faq-list .accordion-content{padding-right:20px}
}

/* ============ CTA 深色区 ============ */
.cta-band{background:var(--c-ink);color:#fff;padding:88px 0}
.cta-band h2{color:#fff;margin-bottom:16px}
.cta-band p{color:rgba(255,255,255,.76);font-size:16px;line-height:1.85}
.cta-kicker{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--c-accent);margin-bottom:16px;
}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.82)}
.cta-points .dot{flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--c-accent);margin-top:11px}

.cta-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.chip--dark{
  background:transparent;border-color:rgba(255,255,255,.24);color:rgba(255,255,255,.86);
}
.chip--dark:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.4);color:#fff}

.lead-form{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);
  padding:28px;
}
.lead-form .field{margin-bottom:18px}
.lead-form label{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:8px}
.lead-form input,
.lead-form textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.96);
  color:var(--c-ink);font-size:15px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.lead-form textarea{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.lead-form input:focus,
.lead-form textarea:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-focus)}
.lead-form .field-err{display:none;margin-top:6px;font-size:13px;color:#E0A278}
.lead-form .field.has-error .field-err{display:block}
.lead-form .field.has-error input{border-color:#E0A278}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px}
.agree input{width:16px;height:16px;flex:0 0 auto;margin-top:4px;accent-color:var(--c-brand)}
.lead-form .btn{width:100%}
.form-done{
  display:none;margin-top:18px;padding:14px 16px;border-radius:var(--r-btn);
  background:rgba(14,110,99,.28);border:1px solid rgba(14,110,99,.6);
  font-size:14px;color:#D7EFEA;
}
.form-done.is-show{display:block}
@media (max-width:1023px){
  .cta-band{padding:64px 0}
  .lead-form{margin-top:36px}
}
@media (max-width:767px){
  .cta-band{padding:56px 0}
  .lead-form{padding:20px}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.78);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand-line{display:flex;flex-direction:column;margin-bottom:16px}
.footer-brand-main{font-size:20px;font-weight:800;color:#fff}
.footer-brand-sub{font-size:11px;letter-spacing:.12em;color:var(--c-accent);margin-top:4px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:34ch}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links li,
.footer-contact li{margin-bottom:10px;font-size:14px;line-height:1.7}
.footer-links a,
.footer-contact a{color:rgba(255,255,255,.72);display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover,
.footer-contact a:hover{color:var(--c-brand-soft);transform:translateX(2px)}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--c-brand-soft)}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:600px){
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:48px 0 22px}
}

/* ============ 导航移动端 ============ */
@media (max-width:1023px){
  .nav-inner{gap:14px}
  .nav-search-toggle{display:inline-flex}
  .nav-search{
    position:absolute;left:0;right:0;top:100%;z-index:70;
    max-width:none;display:none;margin:0;
    background:#fff;border-bottom:1px solid var(--c-line);
    box-shadow:0 18px 30px -24px rgba(20,24,28,.4);
    padding:14px 18px 16px;
  }
  .nav-search.is-open{display:block}
  .search-form{height:44px}
  .nav-actions .btn{padding:0 18px;height:42px;font-size:14px}
}
@media (max-width:520px){
  .logo-main{font-size:18px}
  .nav-tel{display:none}
  .nav-actions .btn{padding:0 14px}
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --c-ink:#14181C;
  --c-ink-2:#3D444B;
  --c-mute:#7A8288;
  --c-line:#E4E1DB;
  --c-paper:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-brand:#0E6E63;
  --c-brand-dark:#0A544C;
  --c-brand-soft:#E3F0EE;
  --c-accent:#B9703D;
  --c-accent-soft:#F0E4D6;
  --c-focus:rgba(14,110,99,.16);
  --r-btn:6px;
  --r-card:10px;
  --r-chip:999px;
  --sh-1:0 1px 2px rgba(20,24,28,.04),0 8px 24px -14px rgba(20,24,28,.10);
  --sh-2:0 14px 34px -16px rgba(20,24,28,.20);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-paper);
  overflow-x:hidden;
}
@media (min-width:1024px){body{font-size:17px}}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);font-weight:700;font-family:inherit}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease)}
a:hover{color:var(--c-brand)}
img{max-width:100%;height:auto;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
::selection{background:var(--c-brand-soft);color:var(--c-ink)}

.grid-container{max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;width:100%}
@media (max-width:1024px){.grid-container{padding-left:24px;padding-right:24px}}
@media (max-width:520px){.grid-container{padding-left:18px;padding-right:18px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px -16px rgba(20,24,28,.35)}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:88px;transition:min-height .25s var(--ease)}
.site-header.is-scrolled .nav-inner{min-height:64px}
.logo{display:flex;flex-direction:column;flex:0 0 auto;line-height:1.06}
.logo-main{font-size:20px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em}
.logo-sub{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--c-accent)}
.logo:hover .logo-main{color:var(--c-brand)}
.nav-search{flex:1 1 auto;max-width:560px;min-width:0}
.search-form{position:relative;display:flex;align-items:center;height:46px;padding:0 5px 0 46px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-chip);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-form:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-focus)}
.search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:20px;height:20px;fill:none;stroke:var(--c-mute);stroke-width:1.6;stroke-linecap:round}
.search-form input{flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--c-ink)}
.search-form input::placeholder{color:var(--c-mute)}
.search-form button{flex:0 0 auto;height:36px;padding:0 18px;border:0;border-radius:var(--r-btn);background:var(--c-brand);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .2s var(--ease)}
.search-form button:hover{background:var(--c-brand-dark)}
.chip-row{display:flex;gap:8px;margin-top:10px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.chip-row::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;
  border:1px solid var(--c-line);border-radius:var(--r-chip);
  background:var(--c-surface);color:var(--c-ink-2);
  font-size:13px;white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{background:var(--c-brand-soft);border-color:var(--c-brand-soft);color:var(--c-brand)}
.chip.is-active{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border:0;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--c-brand);color:#fff}
.btn-primary:hover{background:var(--c-brand-dark);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--c-ink);border:1.5px solid var(--c-ink)}
.btn-ghost:hover{background:var(--c-ink);color:#fff;border-color:var(--c-ink)}
.nav-tel{font-size:14px;color:var(--c-ink-2);padding-bottom:2px;border-bottom:2px solid transparent}
.nav-tel:hover{color:var(--c-brand);border-bottom-color:var(--c-accent)}
.nav-search-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  border:1px solid var(--c-line);border-radius:var(--r-btn);background:var(--c-surface);cursor:pointer;
}
.nav-search-toggle svg{width:18px;height:18px;fill:none;stroke:var(--c-ink);stroke-width:1.7;stroke-linecap:round}

/* ---------- crumbs ---------- */
.crumbs{padding:24px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-mute)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:#C9C4BC}
.crumbs a:hover{color:var(--c-brand);text-decoration:underline}
.crumbs .is-current{color:var(--c-mute)}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  padding:36px 0 76px;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center 30%;
  border-bottom:1px solid var(--c-line);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(247,245,241,.95) 0%,rgba(247,245,241,.88) 52%,rgba(247,245,241,.72) 100%);
}
.cat-hero .grid-container{position:relative;z-index:1}
.cat-hero .crumbs{padding-top:0}
.hero-num{
  font-family:"Noto Serif SC",Georgia,"Songti SC","SimSun",serif;
  font-size:clamp(58px,7vw,104px);line-height:.92;font-weight:700;
  letter-spacing:-.03em;color:var(--c-accent);opacity:.38;
  margin-top:18px;
}
.cat-hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.14;font-weight:800;
  letter-spacing:-.02em;margin:8px 0 18px;max-width:16em;
}
.hero-lead{font-size:18px;line-height:1.82;color:var(--c-ink-2);max-width:760px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.hero-tags .tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-chip);background:var(--c-brand-soft);color:var(--c-brand);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}

/* ---------- generic section ---------- */
.section{padding:96px 0}
@media (max-width:1024px){.section{padding:72px 0}}
@media (max-width:768px){.section{padding:56px 0}}
.section-head{max-width:780px;margin-bottom:48px}
.section-head h2{font-size:clamp(24px,2.6vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:16px;font-size:16px;line-height:1.85;color:var(--c-ink-2)}
.section-head .eyebrow{
  display:inline-block;margin-bottom:14px;font-size:12px;font-weight:700;
  letter-spacing:.16em;color:var(--c-accent);text-transform:uppercase;
}

/* ---------- directory grid ---------- */
.dir-grid{margin-left:-12px;margin-right:-12px}
.dir-grid>.cell{padding:12px}
.dir-card{
  display:flex;gap:18px;height:100%;
  padding:24px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.dir-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8D3CA}
.dir-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:var(--r-card);
  background:var(--c-brand-soft);display:flex;align-items:center;justify-content:center;
}
.dir-icon svg{width:22px;height:22px;fill:none;stroke:var(--c-brand);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.dir-body{min-width:0}
.dir-card h3{font-size:18px;line-height:1.5;font-weight:700;margin-bottom:8px}
.dir-card p{font-size:14.5px;line-height:1.8;color:var(--c-ink-2);margin:0}
.dir-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:14px;font-weight:600;color:var(--c-brand);
  border-bottom:2px solid var(--c-accent);padding-bottom:2px;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.dir-link:hover{color:var(--c-brand-dark);border-bottom-color:var(--c-brand)}
.dir-link svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- qa band ---------- */
.qa-band{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.qa-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:56px;align-items:start}
.qa-side{position:sticky;top:104px}
.qa-side img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card)}
.qa-side .aside-title{font-size:15px;font-weight:700;color:var(--c-ink);margin:20px 0 8px}
.qa-side p{font-size:14px;line-height:1.8;color:var(--c-mute)}
.qa-side .btn{margin-top:18px;width:100%}

.accordion.qa-accordion{border:0;background:transparent;margin:0}
.qa-accordion .accordion-item{border:0;border-top:1px solid var(--c-line);background:transparent}
.qa-accordion .accordion-item:last-child{border-bottom:1px solid var(--c-line)}
.qa-accordion .accordion-title{
  display:flex;align-items:flex-start;gap:18px;
  padding:26px 40px 26px 0;border:0;background:transparent;
  font-size:18px;font-weight:700;line-height:1.55;color:var(--c-ink);
  position:relative;
}
.qa-accordion .accordion-title::before{display:none}
.qa-accordion .accordion-title:hover,
.qa-accordion .accordion-title:focus{color:var(--c-brand);background:transparent}
.qc-num{
  flex:0 0 auto;font-family:"Noto Serif SC",Georgia,"Songti SC","SimSun",serif;
  font-size:20px;font-weight:700;color:var(--c-accent);line-height:1.5;
}
.qc-plus{
  position:absolute;right:4px;top:32px;width:18px;height:18px;
  transition:transform .3s var(--ease);
}
.qc-plus::before,.qc-plus::after{
  content:"";position:absolute;background:var(--c-mute);
}
.qc-plus::before{left:0;top:8px;width:18px;height:2px}
.qc-plus::after{left:8px;top:0;width:2px;height:18px}
.qa-accordion .accordion-item.is-active .qc-plus{transform:rotate(45deg)}
.qa-accordion .accordion-item.is-active .accordion-title{color:var(--c-ink)}
.qa-accordion .accordion-content{
  padding:0 48px 30px 44px;border:0;background:transparent;
  color:var(--c-ink-2);font-size:15px;line-height:1.85;
}
.qa-accordion .accordion-content p{margin:0 0 14px}
.qa-accordion .accordion-content p:last-child{margin-bottom:0}
.qa-note{
  margin-top:22px;padding:18px 20px;border-radius:var(--r-card);
  background:var(--c-paper);border-left:3px solid var(--c-accent);
  font-size:14px;line-height:1.8;color:var(--c-ink-2);
}

/* ---------- related chips ---------- */
.related{background:var(--c-paper)}
.related-inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  padding:32px 0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.related-label{font-size:14px;font-weight:700;color:var(--c-ink);margin-right:6px}
.related-inner .chip{height:34px;padding:0 16px;font-size:13.5px}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-ink);color:#fff;padding:96px 0}
@media (max-width:768px){.cta-band{padding:64px 0}}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,36px);line-height:1.25}
.cta-band p{color:rgba(255,255,255,.78);font-size:16px;line-height:1.85}
.cta-grid{margin-left:-12px;margin-right:-12px}
.cta-grid>.cell{padding:12px}
.cta-points{margin-top:26px;display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.82)}
.cta-points svg{flex:0 0 18px;width:18px;height:18px;margin-top:5px;fill:none;stroke:var(--c-accent);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.cta-band .chip{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.22);color:rgba(255,255,255,.86)}
.cta-band .chip:hover{background:var(--c-brand-soft);border-color:var(--c-brand-soft);color:var(--c-brand)}
.cta-card{background:#fff;border-radius:var(--r-card);padding:28px}
@media (max-width:520px){.cta-card{padding:20px}}
.cta-card .card-title{font-size:17px;font-weight:700;color:var(--c-ink);margin-bottom:6px}
.cta-card .card-sub{font-size:13px;color:var(--c-mute);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;margin-bottom:8px;color:var(--c-ink-2);font-weight:600}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;color:var(--c-ink);outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-focus)}
.field .err{display:none;margin-top:6px;font-size:13px;color:var(--c-accent)}
.field.has-error .err{display:block}
.field.has-error input,.field.has-error textarea{border-color:var(--c-accent)}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;line-height:1.7;color:var(--c-mute);margin:6px 0 18px}
.check-row input{width:16px;height:16px;margin-top:3px;flex:0 0 auto;accent-color:var(--c-brand)}
.cta-card .btn{width:100%}
.form-ok{display:none;margin-top:16px;padding:14px 16px;border-radius:var(--r-btn);background:var(--c-brand-soft);color:var(--c-brand-dark);font-size:14px;line-height:1.7}
.form-ok.is-visible{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.76);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr);gap:44px}
.footer-brand-line{display:flex;align-items:baseline;gap:8px;margin-bottom:16px}
.footer-brand-main{font-size:20px;font-weight:800;color:#fff;letter-spacing:-.01em}
.footer-brand-sub{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--c-accent)}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:34em}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links li,.footer-contact li{font-size:14px;line-height:1.6;margin-bottom:10px}
.footer-links a,.footer-contact a{color:rgba(255,255,255,.72);display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover,.footer-contact a:hover{color:var(--c-brand-soft);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:var(--c-brand-soft)}

@media (max-width:1024px){
  .nav-inner{flex-wrap:wrap;gap:14px;padding-top:14px;padding-bottom:14px;min-height:auto}
  .site-header.is-scrolled .nav-inner{min-height:auto}
  .nav-search{order:3;width:100%;max-width:none;display:none}
  .nav-search.is-open{display:block}
  .nav-search-toggle{display:inline-flex}
  .logo{order:1}
  .nav-actions{order:2;margin-left:auto}
  .qa-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .qa-side{position:static}
  .qa-side img{aspect-ratio:16/9}
  .qa-accordion .accordion-content{padding-left:0;padding-right:24px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
}
@media (max-width:768px){
  .hero-num{font-size:56px}
  .dir-card{padding:20px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{margin-top:40px}
}
@media (max-width:520px){
  .nav-actions .btn-primary{height:40px;padding:0 16px;font-size:14px}
  .nav-tel{display:none}
  .cat-hero{padding-bottom:56px}
  .qa-accordion .accordion-title{font-size:16.5px;padding:22px 34px 22px 0}
  .qc-num{font-size:17px}
  .qc-plus{top:28px}
  .dir-card{flex-direction:column;gap:14px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .dir-card:hover{transform:none}
  .btn-primary:hover{transform:none}
}