/* roulang page: index */
:root{
  --brand:#2C5142;
  --brand-deep:#1F3B30;
  --brand-soft:#E8F0E9;
  --accent:#E9A13B;
  --accent-hover:#C97F1E;
  --bg:#FAF6EE;
  --surface:#FFFFFF;
  --ink:#1D2621;
  --ink-2:#5B665E;
  --ink-3:#8A938C;
  --line:#E6DFD2;
  --ok:#3E8E5A;
  --warn:#C4553B;
  --info:#4A7C8C;
  --r-card:16px;
  --r-block:22px;
  --r-img:14px;
  --r-btn:10px;
  --r-chip:999px;
  --shadow-1:0 1px 2px rgba(29,38,33,.04),0 8px 24px -12px rgba(44,81,66,.16);
  --shadow-2:0 2px 4px rgba(29,38,33,.06),0 18px 36px -16px rgba(44,81,66,.26);
  --dur:180ms;
  --serif:"Songti SC","Noto Serif SC","Source Han Serif SC",Georgia,"STSong",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:16.5px;line-height:1.95;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--dur) ease}
a:hover{color:var(--accent-hover)}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;color:var(--ink);letter-spacing:.2px}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head .eyebrow{margin-bottom:10px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--brand);
  background:var(--brand-soft);border:1px solid rgba(44,81,66,.12);
  padding:6px 13px;border-radius:var(--r-chip);line-height:1.5;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
h2.section-title{font-size:28px;line-height:1.45}
.section-sub{margin-top:10px;color:var(--ink-2);font-size:15.5px;max-width:720px}
.lead{font-size:17px;color:var(--ink-2)}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(250,246,238,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid transparent;transition:box-shadow var(--dur) ease,border-color var(--dur) ease;
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{width:34px;height:34px;flex:0 0 auto;color:var(--brand)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-family:var(--serif);font-size:17px;font-weight:700;letter-spacing:.4px}
.brand-tag{font-size:11.5px;color:var(--ink-3);letter-spacing:.14em}
.nav-chips{
  display:flex;align-items:center;gap:6px;margin:0 auto;
  padding:5px;border:1px solid var(--line);border-radius:var(--r-chip);background:var(--surface);
  box-shadow:var(--shadow-1);overflow-x:auto;scrollbar-width:none;max-width:100%;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;white-space:nowrap;
  padding:8px 15px;border-radius:var(--r-chip);border:1px solid transparent;
  font-size:14px;color:var(--ink-2);line-height:1.4;transition:all var(--dur) ease;
}
.chip:hover{color:var(--brand);border-color:rgba(44,81,66,.24);background:rgba(44,81,66,.05)}
.chip.is-active{background:rgba(233,161,59,.16);border-color:rgba(233,161,59,.5);color:var(--brand);font-weight:700}
.nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-divider{width:1px;height:26px;background:var(--line)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.drawer{
  position:fixed;inset:0;z-index:90;background:var(--bg);
  display:flex;flex-direction:column;padding:20px;
  transform:translateY(-8px);opacity:0;visibility:hidden;transition:all var(--dur) ease;
}
.drawer.is-open{transform:none;opacity:1;visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:52px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);font-size:20px;color:var(--ink)}
.drawer-list{display:flex;flex-direction:column;gap:8px;margin-top:22px}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 16px;border:1px solid var(--line);border-radius:14px;
  background:var(--surface);font-size:16px;color:var(--ink);
}
.drawer-list a.is-active{border-color:rgba(233,161,59,.55);background:rgba(233,161,59,.14);color:var(--brand);font-weight:700}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%;justify-content:center}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.4;text-align:center;
  border:1px solid transparent;transition:all var(--dur) ease;
}
.btn-primary{background:var(--accent);color:#231A0C;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#231A0C;transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(44,81,66,.4)}
.btn-ghost:hover{background:rgba(44,81,66,.08);color:var(--brand);border-color:var(--brand)}
.btn-light{background:var(--surface);color:var(--brand);border-color:var(--line)}
.btn-light:hover{background:var(--brand-soft);color:var(--brand);border-color:rgba(44,81,66,.3)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;padding:4px 0;font-size:15px;font-weight:600;
  color:var(--brand);border-bottom:2px solid var(--accent);border-radius:0;
}
.btn-link:hover{color:var(--accent-hover)}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}
.btn.is-loading{pointer-events:none;opacity:.85}
.btn.is-loading::after{
  content:"";width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(35,26,12,.25);border-top-color:#231A0C;animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 84px}
.hero::before{
  content:"";position:absolute;inset:0;opacity:.055;pointer-events:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='56' height='64' viewBox='0 0 56 64'><path d='M28 3 51 16.5v27L28 57 5 43.5v-27z' fill='none' stroke='%232C5142' stroke-width='1.6'/></svg>");
  background-size:56px 64px;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(233,161,59,.20),rgba(233,161,59,0) 68%);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.35;margin:20px 0 16px}
.hero .hero-sub{font-size:18px;color:var(--ink-2);margin-bottom:12px;max-width:560px}
.hero .hero-note{font-size:15px;color:var(--ink-2);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 26px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px}
.trust-item{
  display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-chip);padding:7px 14px;
}
.trust-item svg{width:14px;height:14px;color:var(--ok);flex:0 0 auto}
.hero-media{position:relative}
.hero-media .media-frame{
  position:relative;aspect-ratio:16/11;border-radius:var(--r-block);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-2);background:var(--brand-soft);
}
.hero-media .media-frame img{width:100%;height:100%;object-fit:cover}
.hero-media .media-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(29,38,33,0) 45%,rgba(29,38,33,.42));
}
.hero-card{
  position:absolute;right:-10px;bottom:-22px;width:210px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-2);padding:16px 16px 14px;
}
.hero-card .hc-label{font-size:12.5px;color:var(--ink-3);letter-spacing:.06em}
.hero-card .hc-value{font-family:var(--serif);font-size:26px;font-weight:700;color:var(--brand);line-height:1.3;margin-top:2px}
.hero-card .hc-desc{font-size:13px;color:var(--ink-2);line-height:1.7;margin-top:4px}

/* ---------- question cards ---------- */
.q-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.q-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow-1);transition:all var(--dur) ease;display:block;color:inherit;
}
.q-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(44,81,66,.24);color:inherit}
.q-card .q-icon{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.q-card:nth-child(1){margin-top:0}
.q-card:nth-child(2){margin-top:26px}
.q-card:nth-child(3){margin-top:12px}
.q-card:nth-child(1) .q-icon{background:rgba(233,161,59,.16);color:var(--accent-hover)}
.q-card:nth-child(2) .q-icon{background:rgba(74,124,140,.14);color:var(--info)}
.q-card:nth-child(3) .q-icon{background:rgba(44,81,66,.12);color:var(--brand)}
.q-icon svg{width:20px;height:20px}
.q-card h3{font-size:19px;line-height:1.6;margin-bottom:8px}
.q-card p{font-size:15px;color:var(--ink-2);line-height:1.85}
.q-arrow{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--brand)}
.q-card:hover .q-arrow{color:var(--accent-hover)}

/* ---------- solution cards ---------- */
.sol-grid{display:grid;grid-template-columns:2fr 1fr 1fr;grid-template-rows:auto auto;gap:24px}
.sol-main{
  grid-column:1 / span 1;grid-row:1 / span 2;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:all var(--dur) ease;
}
.sol-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.sol-cover{aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft);border-bottom:1px solid var(--line)}
.sol-cover img{width:100%;height:100%;object-fit:cover}
.sol-body{padding:26px 26px 28px}
.sol-body h3{font-size:21px;margin-bottom:10px}
.sol-body p{font-size:15px;color:var(--ink-2)}
.sol-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.sol-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.8}
.sol-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;border-radius:2px;background:var(--accent);margin-top:11px;
}
.sol-side{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);transition:all var(--dur) ease;display:flex;flex-direction:column;
}
.sol-side:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(44,81,66,.22)}
.sol-side .badge{margin-bottom:14px}
.sol-side h3{font-size:18px;line-height:1.6;margin-bottom:8px}
.sol-side p{font-size:14.5px;color:var(--ink-2);line-height:1.85}
.sol-side .side-foot{margin-top:auto;padding-top:16px}
.sol-side.wide{grid-column:2 / span 2;grid-row:1}
.sol-side.tall{grid-column:2 / span 2;grid-row:2}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;padding:6px 12px;border-radius:var(--r-chip);
  background:var(--brand-soft);color:var(--brand);border:1px solid rgba(44,81,66,.12);line-height:1.5;
}
.badge--accent{background:rgba(233,161,59,.16);color:var(--accent-hover);border-color:rgba(233,161,59,.34)}
.badge--info{background:rgba(74,124,140,.12);color:var(--info);border-color:rgba(74,124,140,.24)}

/* ---------- stats band ---------- */
.stats{background:var(--brand);color:#F2EFE6;position:relative;overflow:hidden}
.stats::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='56' height='64' viewBox='0 0 56 64'><path d='M28 3 51 16.5v27L28 57 5 43.5v-27z' fill='none' stroke='%23FFFFFF' stroke-width='1.6'/></svg>");
  background-size:56px 64px;
}
.stats .container{position:relative}
.stats-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;flex-wrap:wrap}
.stats-head h2{color:#FFFDF6;font-size:28px;line-height:1.45}
.stats-head p{color:rgba(242,239,230,.78);font-size:15.5px;max-width:620px;margin-top:10px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:24px 22px}
.stat .num{font-family:var(--serif);font-size:38px;font-weight:700;color:var(--accent);line-height:1.2}
.stat .num small{font-size:16px;margin-left:4px;color:var(--accent);font-family:var(--sans);font-weight:600}
.stat .label{font-size:14.5px;color:rgba(242,239,230,.82);margin-top:8px;line-height:1.8}

/* ---------- CMS list ---------- */
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:all var(--dur) ease;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(44,81,66,.22)}
.info-card .card-strip{height:6px;background:linear-gradient(90deg,var(--accent),rgba(44,81,66,.7))}
.info-card .card-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.info-card .card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.info-card h3{font-size:18px;line-height:1.6;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.info-card .excerpt{font-size:14.5px;color:var(--ink-2);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.info-card .card-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.info-card .date{font-size:13px;color:var(--ink-3)}
.info-card .card-foot .more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:5px}
.info-card:hover .card-foot .more{color:var(--accent-hover)}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-block);
  padding:56px 24px;box-shadow:var(--shadow-1);
}
.empty-state .es-icon{width:48px;height:48px;border-radius:14px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;color:var(--brand)}
.empty-state p{color:var(--ink-2);font-size:15.5px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step{position:relative;padding-top:8px}
.step .num{
  width:44px;height:44px;border-radius:50%;background:var(--surface);border:1px solid rgba(44,81,66,.24);
  color:var(--brand);font-family:var(--serif);font-weight:700;font-size:18px;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;position:relative;z-index:1;
}
.step::after{
  content:"";position:absolute;left:58px;top:30px;right:-24px;height:1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 6px,transparent 6px 12px);
}
.step:last-child::after{display:none}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.85}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:8fr 4fr;gap:48px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 0;text-align:left;font-size:16.5px;font-weight:600;color:var(--ink);
  font-family:var(--serif);line-height:1.7;
}
.faq-q:hover{color:var(--brand)}
.faq-q .mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
  transition:transform var(--dur) ease,background var(--dur) ease;
}
.faq-item.is-open .faq-q .mark{transform:rotate(180deg);background:rgba(233,161,59,.18);border-color:rgba(233,161,59,.45)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease}
.faq-a p{font-size:15.5px;line-height:1.9;color:var(--ink-2);padding-bottom:18px;margin:0}
.faq-aside{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-1);
}
.faq-aside h3{font-size:19px;margin-bottom:10px}
.faq-aside p{font-size:15px;color:var(--ink-2)}
.faq-aside .aside-list{margin:18px 0 22px;display:flex;flex-direction:column;gap:12px}
.faq-aside .aside-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);line-height:1.8}
.faq-aside .aside-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:11px}

/* ---------- cta ---------- */
.cta-band{
  background:var(--brand-soft);border:1px solid rgba(44,81,66,.14);
  border-radius:var(--r-block);padding:48px 44px;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;bottom:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(233,161,59,.28),rgba(233,161,59,0) 70%);
}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center}
.cta-inner h2{font-size:28px;line-height:1.45;margin-bottom:12px}
.cta-inner p{font-size:15.5px;color:var(--ink-2);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- modal ---------- */
.modal{
  position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;padding:24px;
  background:rgba(29,38,33,.45);opacity:0;visibility:hidden;transition:opacity var(--dur) ease,visibility var(--dur) ease;
}
.modal.is-open{opacity:1;visibility:visible}
.modal-card{
  width:100%;max-width:560px;background:var(--surface);border-radius:var(--r-block);
  border:1px solid var(--line);box-shadow:var(--shadow-2);max-height:88vh;overflow-y:auto;
  transform:translateY(10px);transition:transform var(--dur) ease;
}
.modal.is-open .modal-card{transform:none}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:26px 26px 0}
.modal-head h2{font-size:22px;line-height:1.5}
.modal-head p{font-size:14.5px;color:var(--ink-2);margin-top:8px}
.modal-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--bg);font-size:20px;color:var(--ink-2);flex:0 0 auto}
.modal-close:hover{color:var(--brand);background:var(--brand-soft)}
.form{padding:22px 26px 26px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px}
.field input[type=text],.field input[type=tel],.field textarea,.field select{
  width:100%;min-height:44px;padding:10px 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--bg);color:var(--ink);font-size:15px;
  transition:border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.field textarea{min-height:104px;line-height:1.8;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,161,59,.22);background:var(--surface);
}
.chip-group{display:flex;flex-wrap:wrap;gap:10px}
.chip-radio{position:relative}
.chip-radio input{position:absolute;opacity:0;width:0;height:0}
.chip-radio span{
  display:inline-flex;align-items:center;min-height:40px;padding:8px 16px;border-radius:var(--r-chip);
  border:1px solid var(--line);background:var(--bg);font-size:14px;color:var(--ink-2);transition:all var(--dur) ease;
}
.chip-radio input:checked + span{background:rgba(233,161,59,.18);border-color:rgba(233,161,59,.55);color:var(--brand);font-weight:600}
.chip-radio input:focus-visible + span{outline:2px solid var(--accent);outline-offset:2px}
.chip-radio span:hover{border-color:rgba(44,81,66,.35)}
.consent{display:flex;gap:10px;align-items:flex-start;margin:4px 0 6px}
.consent input{margin-top:5px;width:18px;height:18px;accent-color:var(--brand)}
.consent label{font-size:13.5px;color:var(--ink-2);line-height:1.75}
.form-hint{font-size:12.5px;color:var(--ink-3);margin-top:10px;line-height:1.8}
.form-msg{font-size:13px;color:var(--warn);margin-top:6px;display:none}
.form-msg.is-show{display:block}
.form-submit{width:100%;margin-top:8px}

/* ---------- footer ---------- */
.site-footer{background:var(--brand);color:#E9E6DC;margin-top:0;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#FFFDF6;margin-bottom:16px}
.footer-brand .brand-mark{color:var(--accent)}
.footer-brand .brand-name{color:#FFFDF6}
.site-footer p{font-size:14.5px;color:rgba(233,230,220,.76);line-height:1.9}
.footer-col h4{font-size:15px;color:#FFFDF6;margin-bottom:16px;font-family:var(--sans);font-weight:700;letter-spacing:.06em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{font-size:14.5px;color:rgba(233,230,220,.78)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13.5px;color:rgba(233,230,220,.66);margin:0}
.footer-bottom .fb-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom .fb-links a{font-size:13.5px;color:rgba(233,230,220,.72)}
.footer-bottom .fb-links a:hover{color:var(--accent)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
  .hero-grid{gap:36px}
  .sol-grid{grid-template-columns:1.6fr 1fr 1fr}
}
@media (max-width:1023px){
  .nav-chips{display:none}
  .nav-toggle{display:flex}
  .nav-right .nav-divider{display:none}
  .nav-right .btn{display:none}
  .nav-wrap{height:64px;justify-content:space-between}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .hero{padding:56px 0 68px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{max-width:640px}
  .hero-card{right:8px;bottom:-18px}
  .q-grid{grid-template-columns:1fr 1fr}
  .q-card:nth-child(2),.q-card:nth-child(3){margin-top:0}
  .sol-grid{grid-template-columns:1fr 1fr;grid-template-rows:auto auto auto}
  .sol-main{grid-column:1 / span 2;grid-row:auto}
  .sol-side.wide{grid-column:1 / span 2;grid-row:auto}
  .sol-side.tall{grid-column:1 / span 2;grid-row:auto}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .info-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .step:nth-child(2)::after{display:none}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.9}
  .container{padding:0 20px}
  .section{padding:48px 0}
  h2.section-title,.stats-head h2,.cta-inner h2{font-size:23px}
  .hero h1{font-size:30px}
  .hero .hero-sub{font-size:16.5px}
  .hero-card{position:static;width:100%;margin-top:16px}
  .hero-media .media-frame{border-radius:var(--r-card)}
  .q-grid,.info-grid,.stats-grid,.steps,.footer-grid{grid-template-columns:1fr}
  .step::after{display:none}
  .step{border-bottom:1px dashed var(--line);padding-bottom:20px}
  .step:last-child{border-bottom:0;padding-bottom:0}
  .sol-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 22px}
  .cta-actions .btn{width:100%}
  .hero-actions .btn{width:100%}
  .section-head,.list-head{flex-direction:column;align-items:flex-start;gap:14px}
  .modal{padding:0;align-items:flex-end}
  .modal-card{max-width:100%;border-radius:22px 22px 0 0;max-height:92vh}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .section{padding:42px 0}
  .hero{padding:44px 0 54px}
  .brand-tag{display:none}
  .stat .num{font-size:32px}
  .lead{font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .q-card:hover,.sol-main:hover,.sol-side:hover,.info-card:hover{transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --brand:#2C5142;
  --brand-soft:#E8F0E9;
  --brand-mid:#3C6B58;
  --accent:#E9A13B;
  --accent-hover:#C97F1E;
  --bg:#FAF6EE;
  --surface:#FFFFFF;
  --sand:#F3EADA;
  --ink:#1D2621;
  --ink-2:#5B665E;
  --ink-3:#8B948C;
  --line:#E6DFD2;
  --ok:#3E8E5A;
  --warn:#C4553B;
  --info:#4A7C8C;
  --r-btn:10px;
  --r-img:14px;
  --r-card:16px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(29,38,33,.04), 0 8px 24px -12px rgba(44,81,66,.16);
  --sh-2:0 2px 8px rgba(29,38,33,.06), 0 18px 40px -16px rgba(44,81,66,.26);
  --font-serif:"Songti SC","Noto Serif SC","Source Han Serif SC","STSong",serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --container:1180px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.95;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent-hover);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;line-height:1.35;color:var(--ink);}
p{margin:0 0 18px;}
ul,ol{margin:0 0 18px;padding-left:1.25em;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#26200F;box-shadow:0 1px 2px rgba(29,38,33,.06);}
.btn-primary:hover{background:var(--accent-hover);color:#1A160A;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:rgba(44,81,66,.08);color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;padding:0 0 2px;
  background:none;border:0;border-bottom:3px solid var(--accent);
  color:var(--brand);font-size:15px;font-weight:600;cursor:pointer;
}
.btn-link:hover{color:var(--accent-hover);border-color:var(--accent-hover);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}
.btn .spinner{
  width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(29,38,33,.28);border-top-color:#26200F;
  animation:spin .8s linear infinite;display:none;
}
.btn.is-loading .spinner{display:inline-block;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(250,246,238,.94);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;transition:border-color .18s ease,box-shadow .18s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:72px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--brand);flex:0 0 auto;}
.brand:hover{color:var(--brand);}
.brand-mark{width:32px;height:32px;color:var(--brand);flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-family:var(--font-serif);font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--brand);}
.brand-tag{font-size:10px;letter-spacing:.22em;color:var(--ink-3);font-weight:600;}
.nav-chips{display:flex;align-items:center;gap:6px;flex:1 1 auto;min-width:0;overflow-x:auto;scrollbar-width:none;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;padding:8px 14px;border-radius:var(--r-pill);
  border:1px solid transparent;background:transparent;color:var(--ink-2);
  font-size:14px;font-weight:500;white-space:nowrap;transition:all .18s ease;
}
.chip:hover{color:var(--brand);border-color:var(--line);background:rgba(255,255,255,.7);}
.chip.is-active{background:var(--brand-soft);border-color:#CFDECF;color:var(--brand);font-weight:700;}
.nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto;margin-left:auto;}
.nav-divider{width:1px;height:26px;background:var(--line);display:block;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--brand);
  border-radius:2px;transform:translateX(-50%);transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;}
.nav-toggle span::after{content:"";top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) translateY(-6px) rotate(-45deg);}

.nav-drawer{
  position:fixed;inset:60px 0 0 0;background:var(--bg);z-index:55;
  padding:20px;overflow-y:auto;transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.nav-drawer nav{display:flex;flex-direction:column;gap:8px;margin-bottom:24px;}
.nav-drawer .chip{justify-content:flex-start;padding:14px 16px;font-size:15.5px;border-color:var(--line);background:var(--surface);}
.nav-drawer .chip.is-active{border-color:#CFDECF;}
.nav-drawer .btn{width:100%;padding:15px 22px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(255,255,255,.55);}
.crumb{display:flex;align-items:center;gap:8px;padding:14px 0;font-size:13.5px;color:var(--ink-2);flex-wrap:wrap;}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--ink-3);}
.crumb .current{color:var(--brand);font-weight:600;max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章主体 ---------- */
.article-wrap{padding:44px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:56px;align-items:start;}
.article-head{padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:30px;}
.article-head h1{font-size:clamp(26px,3.4vw,36px);line-height:1.42;margin-bottom:18px;letter-spacing:.01em;}
.meta-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13.5px;color:var(--ink-2);}
.chip-static{background:var(--brand-soft);border:1px solid #CFDECF;color:var(--brand);font-weight:600;}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);display:inline-block;}

.article-body{max-width:760px;font-size:16.5px;line-height:1.95;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;font-size:28px;margin:40px 0 18px;padding-left:16px;line-height:1.4;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:3px;background:var(--accent);
}
.article-body h3{font-size:20px;margin:30px 0 12px;}
.article-body ul,.article-body ol{padding-left:1.1em;margin:0 0 20px;}
.article-body ul{list-style:none;padding-left:0;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;
  background:var(--accent);border-radius:2px;
}
.article-body ol li{margin-bottom:10px;}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--sand);
  border-left:4px solid var(--accent);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:26px auto;box-shadow:var(--sh-1);}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;background:var(--surface);border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:var(--brand-soft);color:var(--brand);font-weight:600;font-size:14px;}
.article-body tbody tr:nth-child(even){background:#FCFAF5;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-color:#BCD1C2;}
.article-body a:hover{color:var(--accent-hover);text-decoration-color:var(--accent);}
.article-body code{background:var(--sand);padding:2px 6px;border-radius:6px;font-size:.92em;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:52px 28px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state .es-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:50%;
  background:var(--brand-soft);display:flex;align-items:center;justify-content:center;color:var(--brand);
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:20px;}

/* ---------- 文内 CTA ---------- */
.inline-cta{
  margin:36px 0;background:var(--sand);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 28px;display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;
}
.inline-cta h3{font-size:20px;margin-bottom:6px;}
.inline-cta p{margin:0;color:var(--ink-2);font-size:14.5px;}

/* ---------- 侧栏 ---------- */
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);}
.side-card h4{font-size:15px;margin-bottom:14px;letter-spacing:.02em;}
.side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px;}
.side-list li a{display:flex;gap:10px;align-items:flex-start;padding:9px 0;font-size:14.5px;color:var(--ink-2);border-bottom:1px dashed var(--line);}
.side-list li:last-child a{border-bottom:0;}
.side-list li a:hover{color:var(--brand);}
.side-list .idx{color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums;}
.side-tags{display:flex;flex-wrap:wrap;gap:8px;}
.side-tags a{
  font-size:13px;padding:6px 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);border:1px solid transparent;
}
.side-tags a:hover{border-color:#CFDECF;background:var(--surface);}
.side-note{font-size:13.5px;color:var(--ink-2);line-height:1.8;}

/* ---------- 相关推荐 ---------- */
.related{padding:64px 0 8px;border-top:1px solid var(--line);margin-top:56px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.sec-head h2{font-size:26px;}
.sec-head p{margin:8px 0 0;color:var(--ink-2);font-size:15px;}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8D0C0;}
.card-cover{aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft);}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card:hover .card-body h3{color:var(--brand);}
.card-body p{
  margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);}
.card-foot .badge{background:var(--brand-soft);color:var(--brand);border-radius:var(--r-pill);padding:4px 10px;font-weight:600;}

/* ---------- 上下篇 ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap);margin-top:44px;}
.pager a{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);transition:transform .18s ease,border-color .18s ease;
}
.pager a:hover{transform:translateY(-3px);border-color:#D8D0C0;}
.pager .dir{font-size:12.5px;color:var(--ink-3);letter-spacing:.08em;display:block;margin-bottom:8px;}
.pager .ttl{font-size:16.5px;font-weight:600;color:var(--brand);line-height:1.55;}
.pager .right{text-align:right;}
.back-row{display:flex;justify-content:center;margin-top:40px;}

/* ---------- FAQ ---------- */
.faq{padding:72px 0 0;}
.faq-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:56px;align-items:start;}
.faq-grid h2{font-size:28px;margin-bottom:14px;}
.faq-grid .faq-intro{color:var(--ink-2);font-size:15px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:600;text-align:left;cursor:pointer;color:var(--ink);transition:color .18s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q .sign{
  flex:0 0 auto;width:22px;height:22px;position:relative;color:var(--accent);transition:transform .2s ease;
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;transform:translate(-50%,-50%);
}
.faq-q .sign::before{width:12px;height:2px;}
.faq-q .sign::after{width:2px;height:12px;}
.faq-item.is-open .faq-q .sign{transform:rotate(180deg);}
.faq-item.is-open .faq-q .sign::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease;}
.faq-a p{padding:0 0 18px;margin:0;font-size:15.5px;line-height:1.9;color:var(--ink-2);}
.faq-aside{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);}
.faq-aside h3{font-size:17px;margin-bottom:10px;}
.faq-aside p{font-size:14.5px;color:var(--ink-2);}
.faq-aside .btn{width:100%;margin-top:6px;}

/* ---------- 末尾 CTA ---------- */
.cta-band{padding:72px 0 88px;}
.cta-box{
  position:relative;overflow:hidden;background:var(--brand);color:#F4F1E7;
  border-radius:var(--r-lg);padding:52px 48px;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:36px;align-items:center;
}
.cta-box::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(60deg,rgba(255,255,255,.05) 0 1px,transparent 1px 22px),
                   repeating-linear-gradient(-60deg,rgba(255,255,255,.05) 0 1px,transparent 1px 22px);
  opacity:.55;
}
.cta-box h2{color:#FFFFFF;font-size:28px;margin-bottom:12px;}
.cta-box p{color:rgba(244,241,231,.82);font-size:15.5px;margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}
.cta-box .btn-ghost{color:#F4F1E7;border-color:rgba(244,241,231,.5);}
.cta-box .btn-ghost:hover{background:rgba(255,255,255,.12);color:#FFFFFF;}

/* ---------- 弹层 ---------- */
.modal-mask{
  position:fixed;inset:0;background:rgba(29,38,33,.45);z-index:90;
  display:flex;align-items:center;justify-content:center;padding:24px;
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
}
.modal-mask.is-open{opacity:1;visibility:visible;}
.modal{
  width:100%;max-width:560px;background:var(--surface);border-radius:var(--r-lg);
  padding:30px 30px 26px;box-shadow:var(--sh-2);transform:translateY(10px);transition:transform .2s ease;
  max-height:88vh;overflow-y:auto;
}
.modal-mask.is-open .modal{transform:translateY(0);}
.modal h3{font-size:21px;margin-bottom:6px;}
.modal .modal-sub{font-size:14px;color:var(--ink-2);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:11px 13px;background:#FCFAF5;transition:border-color .18s ease,background-color .18s ease;
}
.field input{height:44px;}
.field textarea{min-height:96px;resize:vertical;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);background:var(--surface);}
.chip-group{display:flex;flex-wrap:wrap;gap:8px;}
.chip-group label{
  font-size:13.5px;padding:8px 14px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:#FCFAF5;color:var(--ink-2);cursor:pointer;margin:0;font-weight:500;transition:all .18s ease;
}
.chip-group input{position:absolute;opacity:0;width:0;height:0;}
.chip-group input:checked + span{}
.chip-group label:hover{border-color:#CFDECF;color:var(--brand);}
.chip-group label.is-checked{background:var(--brand-soft);border-color:#CFDECF;color:var(--brand);font-weight:700;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-2);margin:6px 0 18px;}
.consent input{width:16px;height:16px;margin-top:4px;accent-color:var(--accent);}
.consent a{text-decoration:underline;text-underline-offset:3px;}
.form-tip{font-size:13px;color:var(--warn);min-height:18px;margin-bottom:8px;}
.form-ok{background:var(--brand-soft);border:1px solid #CFDECF;color:var(--brand);border-radius:var(--r-btn);padding:12px 14px;font-size:14.5px;margin-bottom:16px;display:none;}
.modal-close{
  position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:var(--surface);cursor:pointer;color:var(--ink-2);
  display:flex;align-items:center;justify-content:center;font-size:18px;line-height:1;
}
.modal-close:hover{border-color:var(--brand);color:var(--brand);}
.modal-shell{position:relative;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand);color:#EFEBDF;padding:64px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#FFFFFF;font-family:var(--font-serif);font-size:17px;font-weight:700;}
.site-footer .brand-mark{color:var(--accent);}
.site-footer p{color:rgba(239,235,223,.78);font-size:14.5px;line-height:1.85;margin:0;}
.footer-col h4{color:#FFFFFF;font-size:15px;margin-bottom:16px;font-family:var(--font-sans);letter-spacing:.04em;}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-col li a,.footer-col li span{color:rgba(239,235,223,.78);font-size:14.5px;}
.footer-col li a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.16);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13.5px;color:rgba(239,235,223,.7);}
.fb-links{display:flex;gap:18px;}
.fb-links a{color:rgba(239,235,223,.78);font-size:13.5px;}
.fb-links a:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:36px;}
}
@media (max-width:1023px){
  .nav-chips{display:none;}
  .nav-toggle{display:block;}
  .nav-right .btn-primary{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .side{position:static;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .faq-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .cta-box{grid-template-columns:minmax(0,1fr);padding:44px 36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .nav-wrap{min-height:60px;gap:12px;}
  .brand-name{font-size:15.5px;}
  .brand-tag{display:none;}
  .article-wrap{padding:32px 0 56px;}
  .article-body h2{font-size:23px;margin-top:34px;}
  .article-body h3{font-size:18.5px;}
  .card-grid{grid-template-columns:1fr;}
  .pager{grid-template-columns:1fr;}
  .pager .right{text-align:left;}
  .related{padding-top:48px;margin-top:40px;}
  .faq{padding-top:52px;}
  .cta-box{padding:34px 22px;border-radius:var(--r-card);}
  .cta-box h2{font-size:23px;}
  .modal-mask{padding:0;align-items:flex-end;}
  .modal{border-radius:var(--r-lg) var(--r-lg) 0 0;max-height:92vh;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .sec-head h2{font-size:22px;}
}
@media (max-width:519px){
  .container{padding:0 20px;}
  .article-head h1{font-size:24px;}
  .inline-cta{padding:20px;gap:16px;}
  .modal{padding:26px 20px 22px;}
  .btn{padding:11px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --brand:#2C5142;
  --brand-soft:#E8F0E9;
  --accent:#E9A13B;
  --accent-hover:#C97F1E;
  --bg:#FAF6EE;
  --surface:#FFFFFF;
  --ink:#1D2621;
  --ink-2:#5B665E;
  --line:#E6DFD2;
  --ok:#3E8E5A;
  --warn:#C4553B;
  --info:#4A7C8C;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:22px;
  --shadow-1:0 1px 2px rgba(29,38,33,.04),0 8px 24px -12px rgba(44,81,66,.16);
  --shadow-2:0 2px 6px rgba(29,38,33,.06),0 18px 42px -18px rgba(44,81,66,.30);
  --sp:88px;
  --font-serif:"Songti SC","Noto Serif SC","Source Han Serif SC",Georgia,"Microsoft YaHei",serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-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:16.5px;
  line-height:1.95;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:14px;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent-hover);}
button{font:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;color:var(--ink);letter-spacing:.2px;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,246,238,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 1px 2px rgba(29,38,33,.04),0 10px 28px -18px rgba(44,81,66,.34);
}
.nav-wrap{display:flex;align-items:center;height:72px;gap:18px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--brand);}
.brand:hover{color:var(--brand);}
.brand-mark{width:32px;height:32px;color:var(--accent);flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-family:var(--font-serif);font-size:16.5px;font-weight:700;color:var(--brand);white-space:nowrap;}
.brand-tag{font-size:10.5px;letter-spacing:.18em;color:var(--ink-2);}
.nav-chips{display:flex;align-items:center;gap:6px;margin:0 auto;}
.chip{
  display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:999px;
  font-size:14px;color:var(--ink-2);
  border:1px solid transparent;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{background:var(--brand-soft);color:var(--brand);border-color:#D6E3D7;}
.chip.is-active{background:var(--brand-soft);color:var(--brand);font-weight:700;border-color:#C9DACB;}
.nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-divider{width:1px;height:24px;background:var(--line);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  border-radius:12px;background:var(--surface);position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--brand);border-radius:2px;
  transform:translateX(-50%);transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";left:0;transform:none;top:-6px;}
.nav-toggle span::after{content:"";left:0;transform:none;top:6px;}

/* drawer */
.nav-drawer{
  position:fixed;inset:0;z-index:90;background:var(--bg);
  padding:24px 24px 32px;display:flex;flex-direction:column;gap:10px;
  transform:translateX(100%);visibility:hidden;
  transition:transform .28s ease,visibility .28s ease;
}
.nav-drawer.is-open{transform:none;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--brand);font-size:20px;line-height:1;
}
.drawer-link{
  display:block;padding:14px 16px;border:1px solid var(--line);border-radius:14px;
  background:var(--surface);font-size:15.5px;color:var(--ink);
}
.drawer-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:700;border-color:#C9DACB;}
.drawer-cta{margin-top:auto;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:10px;
  font-size:14.5px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#24190A;}
.btn-primary:hover{background:var(--accent-hover);color:#1A1105;transform:translateY(-1px);box-shadow:0 8px 18px -10px rgba(201,127,30,.8);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:rgba(44,81,66,.08);color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);
  font-size:14.5px;font-weight:600;border-bottom:3px solid var(--accent);padding-bottom:2px;
}
.btn-text:hover{color:var(--accent-hover);}
.btn.is-loading{pointer-events:none;opacity:.85;}
.btn.is-loading::after{
  content:"";width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(36,25,10,.35);border-top-color:#24190A;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:40px 0 60px;
  background:
    linear-gradient(180deg,rgba(250,246,238,.90) 0%,rgba(250,246,238,.96) 100%),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-2);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#B9B2A2;}
.breadcrumb .cur{color:var(--brand);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:var(--surface);
  border:1px solid var(--line);font-size:13px;color:var(--brand);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.page-hero h1{
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.42;
  margin:20px 0 14px;
  max-width:900px;
}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:660px;margin:0 0 24px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;background:var(--brand-soft);
  color:var(--brand);font-size:13px;border:1px solid #D6E3D7;
}

/* ---------- sections ---------- */
.section{padding:var(--sp) 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:28px;line-height:1.5;margin-bottom:12px;position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.42em;bottom:.42em;width:3px;border-radius:3px;background:var(--accent);
}
.section-head p{color:var(--ink-2);font-size:16px;margin:0;}

/* ---------- zigzag ---------- */
.zig{
  display:grid;grid-template-columns:1fr 1fr;
  gap:64px;align-items:center;margin-bottom:80px;
}
.zig:last-child{margin-bottom:0;}
.zig.reverse .zig-media{order:-1;}
.zig-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow-1);border:1px solid var(--line);}
.zig-step{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.step-num{
  width:38px;height:38px;flex:0 0 auto;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);
  font-family:var(--font-serif);font-size:15px;font-weight:700;
}
.zig-step span.lbl{font-size:13.5px;letter-spacing:.08em;color:var(--ink-2);}
.zig-body h3{font-size:23px;line-height:1.55;margin-bottom:14px;}
.zig-body p{color:var(--ink-2);font-size:16px;}
.tick-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.tick-list li{display:flex;gap:10px;font-size:15px;color:var(--ink);line-height:1.85;}
.tick-list li::before{
  content:"";width:7px;height:7px;border-radius:2px;background:var(--accent);
  margin-top:.72em;flex:0 0 auto;
}

/* ---------- cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D9E4DA;}
.card h3{font-size:18.5px;line-height:1.6;margin-bottom:10px;}
.card p{font-size:15px;color:var(--ink-2);line-height:1.9;margin:0;}
.card .badge{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:999px;font-size:12.5px;
  background:var(--brand-soft);color:var(--brand);margin-bottom:14px;
}
.card.is-warn .badge{background:#FBE9E2;color:var(--warn);}
.card.is-info .badge{background:#E5EFF2;color:var(--info);}
.scene-card{display:flex;gap:22px;align-items:flex-start;}
.scene-card img{width:118px;flex:0 0 auto;aspect-ratio:1/1;object-fit:cover;border-radius:14px;}
.scene-card h3{font-size:18px;margin-bottom:8px;}
.scene-card p{font-size:15px;color:var(--ink-2);}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-intro h2{font-size:28px;line-height:1.5;margin-bottom:14px;}
.faq-intro p{color:var(--ink-2);font-size:15.5px;}
.faq-intro .btn{margin-top:10px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:18px 0;cursor:pointer;font-size:16.5px;font-weight:600;color:var(--ink);
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";width:9px;height:9px;flex:0 0 auto;margin-top:8px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-item summary:hover{color:var(--brand);}
.faq-body{padding:0 0 20px;font-size:15.5px;line-height:1.9;color:var(--ink-2);max-width:680px;}

/* ---------- cta ---------- */
.cta-band{
  background:var(--brand-soft);border:1px solid #D3E1D5;border-radius:var(--radius-lg);
  padding:48px;display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;
}
.cta-band h2{font-size:26px;line-height:1.5;margin-bottom:12px;}
.cta-band p{color:var(--ink-2);font-size:15.5px;margin:0;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-actions .btn{width:100%;}
.cta-note{font-size:13px;color:var(--ink-2);text-align:center;}

/* ---------- link chips ---------- */
.link-group{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.link-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);font-size:14px;color:var(--ink);
  transition:border-color .18s ease,color .18s ease,transform .18s ease;
}
.link-chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.link-chip::after{content:"→";color:var(--accent);font-size:13px;}

/* ---------- modal ---------- */
.modal-mask{
  position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;
  padding:24px;background:rgba(29,38,33,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
}
.modal-mask.is-open{opacity:1;visibility:visible;}
.modal{
  width:560px;max-width:100%;max-height:90vh;overflow:auto;
  background:var(--surface);border-radius:var(--radius-lg);padding:30px;
  box-shadow:var(--shadow-2);transform:translateY(10px);transition:transform .2s ease;
}
.modal-mask.is-open .modal{transform:none;}
.modal h3{font-size:21px;margin-bottom:8px;}
.modal .modal-sub{font-size:14.5px;color:var(--ink-2);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;margin-bottom:7px;color:var(--ink);}
.field input,.field textarea{
  width:100%;min-height:44px;padding:10px 13px;font-family:var(--font-sans);font-size:15px;
  color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.8;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,161,59,.18);
}
.radio-row{display:flex;flex-wrap:wrap;gap:10px;}
.radio-row label{
  display:inline-flex;align-items:center;gap:8px;margin:0;padding:9px 14px;
  border:1px solid var(--line);border-radius:999px;font-size:14px;background:var(--bg);cursor:pointer;
}
.radio-row input{width:auto;min-height:0;}
.radio-row label:hover{border-color:var(--accent);}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--ink-2);margin:4px 0 18px;}
.check-row input{margin-top:6px;}
.form-tip{font-size:12.5px;color:var(--ink-2);margin-top:14px;text-align:center;}
.modal-close{
  position:absolute;top:18px;right:18px;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);color:var(--brand);font-size:18px;
}
.modal{position:relative;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand);color:#EDE7DA;margin-top:0;}
.site-footer .container{padding-top:64px;padding-bottom:26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(237,231,218,.18);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:var(--accent);}
.footer-brand .brand-name{color:#FFF8EA;font-family:var(--font-serif);font-size:17px;font-weight:700;}
.footer-col p{font-size:14.5px;color:rgba(237,231,218,.78);line-height:1.9;margin:0;}
.footer-col h4{font-family:var(--font-sans);font-size:15px;color:#FFF8EA;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li a,.footer-col li span{font-size:14.5px;color:rgba(237,231,218,.78);}
.footer-col li a:hover{color:var(--accent);}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:22px;flex-wrap:wrap;}
.footer-bottom p{font-size:13.5px;color:rgba(237,231,218,.66);margin:0;}
.fb-links{display:flex;gap:20px;}
.fb-links a{font-size:13.5px;color:rgba(237,231,218,.78);}
.fb-links a:hover{color:var(--accent);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  :root{--sp:72px;}
  .zig{gap:44px;}
}
@media (max-width:1023px){
  :root{--sp:64px;}
  .nav-chips{display:none;}
  .nav-toggle{display:block;}
  .brand-tag{display:none;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:36px;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .zig{grid-template-columns:1fr;gap:28px;margin-bottom:60px;}
  .zig.reverse .zig-media{order:0;}
  .page-hero{padding:32px 0 48px;}
}
@media (max-width:767px){
  .grid-2{grid-template-columns:1fr;}
  .grid-4{grid-template-columns:1fr;}
  .scene-card{flex-direction:column;}
  .scene-card img{width:100%;aspect-ratio:16/10;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:600px){
  .modal-mask{align-items:flex-end;padding:0;}
  .modal{width:100%;border-radius:22px 22px 0 0;max-height:92vh;}
}
@media (max-width:520px){
  :root{--sp:48px;}
  body{font-size:16px;}
  .container{padding:0 20px;}
  .page-hero h1{font-size:26px;}
  .section-head h2,.faq-intro h2{font-size:23px;}
  .cta-band{padding:26px 22px;}
  .modal{padding:24px 20px;}
  .footer-grid{gap:26px;}
  .site-footer .container{padding-top:48px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand:#2C5142;
  --brand-deep:#1F3A2F;
  --brand-soft:#E8F0E9;
  --accent:#E9A13B;
  --accent-hover:#C97F1E;
  --bg:#FAF6EE;
  --surface:#FFFFFF;
  --ink:#1D2621;
  --ink-2:#5B665E;
  --line:#E6DFD2;
  --ok:#3E8E5A;
  --warn:#C4553B;
  --info:#4A7C8C;
  --r-card:16px;
  --r-big:22px;
  --r-btn:10px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(29,38,33,.04),0 8px 24px -12px rgba(44,81,66,.16);
  --sh-2:0 2px 4px rgba(29,38,33,.06),0 18px 38px -18px rgba(44,81,66,.28);
  --serif:"Songti SC","Noto Serif SC","Source Han Serif SC",Georgia,"SimSun",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --ease:180ms ease;
  --pad-sec:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:16.5px;line-height:1.95;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent-hover)}
button{font-family:inherit}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;margin:0;color:var(--ink);letter-spacing:.2px}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.35}
h2{font-size:28px;line-height:1.45}
h3{font-size:20px;line-height:1.6}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
.section{padding:var(--pad-sec) 0}
.section--tight{padding:56px 0}
.section--tint{background:linear-gradient(180deg,#F4EEE2 0%,var(--bg) 100%)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.6px;color:var(--brand);
  background:var(--brand-soft);border:1px solid rgba(44,81,66,.14);
  padding:6px 12px;border-radius:999px;margin-bottom:16px;line-height:1.6;
}
.section-head p{color:var(--ink-2);font-size:16px}
.lead{color:var(--ink-2)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.4;border:1px solid transparent;
  cursor:pointer;transition:transform var(--ease),background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#22190A;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(44,81,66,.45)}
.btn-ghost:hover{background:rgba(44,81,66,.08);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;background:none;border:0;padding:4px 0;
  color:var(--brand);font-weight:600;font-size:15px;cursor:pointer;
  border-bottom:3px solid var(--accent);line-height:1.6;transition:color var(--ease),gap var(--ease);
}
.btn-text::after{content:"→";transition:transform var(--ease)}
.btn-text:hover{color:var(--accent-hover)}
.btn-text:hover::after{transform:translateX(3px)}
.btn[disabled],.btn.is-loading{opacity:.65;pointer-events:none}
.btn.is-loading::before{
  content:"";width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(34,25,10,.3);border-top-color:#22190A;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;padding:6px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);border:1px solid rgba(44,81,66,.12);
  line-height:1.6;
}
.badge--accent{background:rgba(233,161,59,.16);color:var(--accent-hover);border-color:rgba(233,161,59,.32)}
.badge--ok{background:rgba(62,142,90,.12);color:var(--ok);border-color:rgba(62,142,90,.28)}
.badge--info{background:rgba(74,124,140,.12);color:var(--info);border-color:rgba(74,124,140,.28)}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:999px;font-size:13.5px;
  border:1px solid transparent;color:var(--ink-2);
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
  line-height:1.5;white-space:nowrap;
}
.chip:hover{color:var(--brand);border-color:rgba(44,81,66,.3);background:rgba(44,81,66,.05)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(250,246,238,.94);
  backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid transparent;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:var(--sh-1);background:rgba(250,246,238,.98)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--brand)}
.brand-mark{width:32px;height:32px;flex-shrink:0;color:var(--accent)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-family:var(--serif);font-size:15px;font-weight:700;color:var(--brand);letter-spacing:.2px}
.brand-tag{font-size:9.5px;letter-spacing:1.8px;color:var(--ink-2);margin-top:2px}
.nav-chips{
  display:flex;align-items:center;gap:4px;flex:1;justify-content:center;
  overflow-x:auto;scrollbar-width:none;padding:4px 2px;
}
.nav-chips::-webkit-scrollbar{display:none}
.nav-chips .chip{font-size:14px;padding:9px 15px;border-radius:999px}
.nav-chips .chip.is-active{
  background:rgba(233,161,59,.18);color:var(--brand);font-weight:700;
  border-color:rgba(233,161,59,.5);
}
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-divider{width:1px;height:26px;background:var(--line)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  background:var(--surface);border:1px solid var(--line);cursor:pointer;
  align-items:center;justify-content:center;padding:0;
}
.nav-toggle span{position:relative;width:18px;height:2px;background:var(--brand);border-radius:2px;display:block;transition:background var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand);
  border-radius:2px;transition:transform var(--ease),top var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);flex-wrap:wrap}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--accent-hover)}
.crumbs .sep{opacity:.55}
.crumbs .now{color:var(--brand);font-weight:600}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background-color:#F3ECDF;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(250,246,238,.96) 0%,rgba(250,246,238,.86) 42%,rgba(250,246,238,.6) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center right;opacity:.95;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;opacity:.05;pointer-events:none;
  background-image:radial-gradient(circle at 1px 1px,#2C5142 1px,transparent 0);
  background-size:22px 22px;
}
.cat-hero .container{position:relative;z-index:2}
.cat-hero-inner{padding:56px 0 60px;min-height:288px;display:flex;flex-direction:column;justify-content:center;gap:16px;max-width:820px}
.cat-hero h1{font-size:clamp(28px,3.6vw,40px);line-height:1.38}
.cat-hero .sub{font-size:17px;color:var(--ink-2);max-width:640px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.hero-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}

/* ---------- 概述双栏 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split .figure{position:relative}
.figure-media{
  border-radius:var(--r-big);overflow:hidden;box-shadow:var(--sh-1);
  border:1px solid var(--line);aspect-ratio:16/10;background:var(--brand-soft);
}
.figure-media img{width:100%;height:100%;object-fit:cover}
.float-card{
  position:absolute;left:-18px;bottom:-22px;width:216px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);padding:16px 18px;box-shadow:var(--sh-2);
}
.float-card .fc-num{font-family:var(--serif);font-size:30px;font-weight:700;color:var(--accent-hover);line-height:1.2;font-variant-numeric:tabular-nums}
.float-card .fc-txt{font-size:13px;color:var(--ink-2);line-height:1.7}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-bottom:1px dashed var(--line);
}
.checklist li:last-child{border-bottom:0}
.checklist .dot{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;margin-top:7px;
  background:var(--brand-soft);border:1px solid rgba(44,81,66,.2);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
}
.checklist strong{display:block;font-size:16.5px;color:var(--ink);font-family:var(--serif)}
.checklist span{color:var(--ink-2);font-size:15px;line-height:1.85}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:22px;width:2px;
  background:linear-gradient(180deg,rgba(233,161,59,.6),rgba(44,81,66,.18));
}
.tl-item{position:relative;display:grid;grid-template-columns:48px 1fr;gap:24px;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:relative;z-index:2;width:48px;height:48px;border-radius:50%;
  background:var(--surface);border:1px solid var(--line);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-weight:700;font-size:17px;font-variant-numeric:tabular-nums;
  box-shadow:var(--sh-1);transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.tl-item:hover .tl-num{background:var(--accent);color:#22190A;border-color:var(--accent);transform:translateY(-2px)}
.tl-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 26px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(44,81,66,.24)}
.tl-body h3{margin-bottom:8px}
.tl-body p{color:var(--ink-2);font-size:15.5px}
.tl-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}

/* ---------- 安全要点（错位卡片） ---------- */
.card-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 26px 24px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(44,81,66,.22)}
.card .ic{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);margin-bottom:16px;
}
.card .ic svg{width:22px;height:22px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--ink-2);font-size:15.5px}
.card--lift{margin-top:26px}
.card--sink{margin-top:52px}
.card .mini-list{margin-top:14px;font-size:14.5px;color:var(--ink-2)}
.card .mini-list li{position:relative;padding-left:16px;line-height:1.9}
.card .mini-list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:1px;background:var(--accent);
}

/* ---------- 数据条 ---------- */
.metrics{background:var(--brand);color:#F3EDE1;position:relative;overflow:hidden}
.metrics::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:radial-gradient(circle at 1px 1px,#FFFFFF 1px,transparent 0);
  background-size:20px 20px;
}
.metrics .container{position:relative;z-index:2}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding:64px 0 0}
.metric .num{
  font-family:var(--serif);font-size:38px;font-weight:700;color:var(--accent);
  line-height:1.15;font-variant-numeric:tabular-nums;
}
.metric .num small{font-size:17px;margin-left:2px;color:rgba(243,237,225,.8)}
.metric .lbl{font-size:14.5px;color:rgba(243,237,225,.82);line-height:1.8;margin-top:6px}
.bars{padding:36px 0 56px;display:grid;gap:18px;max-width:860px}
.bar-row{display:grid;grid-template-columns:180px 1fr 52px;gap:16px;align-items:center;font-size:14.5px}
.bar-track{height:10px;border-radius:999px;background:rgba(243,237,225,.18);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),#F2C071);width:0;transition:width 1s ease}
.bar-val{text-align:right;color:var(--accent);font-variant-numeric:tabular-nums;font-weight:700}
.metrics-note{
  border-top:1px solid rgba(243,237,225,.18);padding:22px 0 0;
  color:rgba(243,237,225,.86);font-size:15px;display:flex;gap:20px;justify-content:space-between;flex-wrap:wrap;align-items:center;
}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 1.6fr;gap:48px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:18px 0;font-family:var(--serif);font-size:17.5px;font-weight:700;color:var(--ink);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary .arw{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
  transition:transform var(--ease),background var(--ease),border-color var(--ease);
}
.faq-item[open] summary .arw{transform:rotate(180deg);background:var(--brand-soft);border-color:rgba(44,81,66,.25)}
.faq-body{padding:0 0 20px;color:var(--ink-2);font-size:15.5px;line-height:1.9;max-width:660px}

/* ---------- CTA + 表单 ---------- */
.cta-panel{
  background:var(--brand-soft);border:1px solid rgba(44,81,66,.14);border-radius:var(--r-big);
  padding:48px;display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start;
}
.cta-panel h2{margin-bottom:14px}
.cta-panel .lead{color:var(--ink-2);font-size:15.5px}
.cta-points{margin-top:22px;display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);align-items:flex-start}
.cta-points li svg{width:18px;height:18px;flex-shrink:0;margin-top:6px;color:var(--ok)}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink)}
.field input[type="text"],.field input[type="tel"],.field textarea{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#FDFBF6;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{height:104px;padding:12px 14px;line-height:1.8;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,161,59,.18);background:#fff}
.field .err{display:none;font-size:13px;color:var(--warn);margin-top:6px}
.field.has-error input,.field.has-error textarea{border-color:var(--warn)}
.field.has-error .err{display:block}
.opt-row{display:flex;gap:8px;flex-wrap:wrap}
.opt{
  position:relative;display:inline-flex;align-items:center;
}
.opt input{position:absolute;opacity:0;width:1px;height:1px}
.opt span{
  display:inline-flex;align-items:center;padding:9px 15px;border-radius:999px;font-size:13.5px;
  border:1px solid var(--line);color:var(--ink-2);background:#FDFBF6;cursor:pointer;
  transition:all var(--ease);min-height:40px;
}
.opt span:hover{border-color:rgba(44,81,66,.35);color:var(--brand)}
.opt input:checked + span{background:rgba(233,161,59,.18);border-color:rgba(233,161,59,.55);color:var(--brand);font-weight:600}
.opt input:focus-visible + span{outline:2px solid var(--accent);outline-offset:2px}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--ink-2);line-height:1.75;margin:4px 0 18px}
.consent input{width:18px;height:18px;margin-top:4px;accent-color:var(--accent);flex-shrink:0}
.consent a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.form-msg{font-size:13.5px;color:var(--ok);display:none}
.form-msg.show{display:block}

/* ---------- 站内互链 ---------- */
.link-chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.link-chips .chip{
  background:var(--surface);border-color:var(--line);padding:10px 18px;font-size:14.5px;box-shadow:var(--sh-1);
}
.link-chips .chip:hover{border-color:var(--accent);color:var(--accent-hover);transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand);color:#EDE7DA;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{color:var(--accent)}
.footer-brand .brand-name{color:#F6F2E7;font-family:var(--serif);font-size:15.5px}
.footer-col h4{color:#F6F2E7;font-size:15px;margin-bottom:16px;letter-spacing:.4px}
.footer-col p{color:rgba(237,231,218,.78);font-size:14.5px;line-height:1.9}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a,.footer-col ul span{color:rgba(237,231,218,.78);font-size:14.5px;transition:color var(--ease)}
.footer-col ul a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(237,231,218,.16);padding:20px 0 32px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(237,231,218,.7);
}
.footer-bottom .fb-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom .fb-links a{color:rgba(237,231,218,.7)}
.footer-bottom .fb-links a:hover{color:var(--accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--pad-sec:64px}
  .nav-chips{
    position:fixed;left:0;right:0;top:60px;bottom:0;background:var(--surface);
    flex-direction:column;align-items:stretch;justify-content:flex-start;gap:8px;
    padding:22px 20px 40px;display:none;z-index:70;overflow-y:auto;border-top:1px solid var(--line);
  }
  body.nav-open .nav-chips{display:flex}
  .nav-chips .chip{font-size:15.5px;padding:14px 16px;border-radius:var(--r-btn);border-color:var(--line);justify-content:flex-start;background:#FDFBF6}
  .nav-chips .chip.is-active{background:rgba(233,161,59,.18)}
  .nav-toggle{display:inline-flex}
  .nav-wrap{height:60px}
  .split{grid-template-columns:1fr;gap:36px}
  .float-card{position:static;width:100%;margin-top:16px;box-shadow:var(--sh-1)}
  .card-row{grid-template-columns:1fr 1fr}
  .card--lift,.card--sink{margin-top:0}
  .metrics-grid{grid-template-columns:1fr 1fr;gap:26px}
  .faq-wrap{grid-template-columns:1fr;gap:12px}
  .cta-panel{grid-template-columns:1fr;padding:34px;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  h2{font-size:24px}
  .cat-hero-inner{padding:44px 0 46px;min-height:0}
  .nav-divider{display:none}
  .brand-name{font-size:13.5px}
  .nav-right .btn{padding:10px 15px;font-size:14px}
  .card-row{grid-template-columns:1fr;gap:18px}
  .bar-row{grid-template-columns:1fr;gap:8px}
  .bar-val{text-align:left}
  .tl-item{grid-template-columns:40px 1fr;gap:16px}
  .tl-num{width:40px;height:40px;font-size:15px}
  .timeline::before{left:19px}
  .tl-body{padding:20px}
}
@media (max-width:520px){
  :root{--pad-sec:48px}
  .metrics-grid{grid-template-columns:1fr;gap:22px;padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-panel{padding:24px 20px;border-radius:18px}
  .form-card{padding:20px}
  .hero-actions .btn{width:100%}
  .metric .num{font-size:32px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --brand:#2C5142;
  --brand-deep:#224035;
  --brand-soft:#E8F0E9;
  --accent:#E9A13B;
  --accent-hover:#C97F1E;
  --bg:#FAF6EE;
  --surface:#FFFFFF;
  --ink:#1D2621;
  --ink-2:#5B665E;
  --line:#E6DFD2;
  --ok:#3E8E5A;
  --warn:#C4553B;
  --info:#4A7C8C;
  --radius-btn:10px;
  --radius-img:14px;
  --radius-card:16px;
  --radius-lg:22px;
  --shadow-1:0 1px 2px rgba(29,38,33,.04),0 8px 24px -12px rgba(44,81,66,.16);
  --shadow-2:0 2px 4px rgba(29,38,33,.06),0 16px 36px -14px rgba(44,81,66,.26);
  --section-y:88px;
  --font-serif:"Songti SC","Noto Serif SC","Source Han Serif SC",Georgia,serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --honeycomb:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='48' viewBox='0 0 56 48'%3E%3Cpath d='M14 1l12 7v14l-12 7L2 22V8z' fill='none' stroke='%232C5142' stroke-opacity='0.07'/%3E%3Cpath d='M42 25l12 7v14l-12 7-12-7V32z' fill='none' stroke='%232C5142' stroke-opacity='0.07'/%3E%3C/svg%3E");
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.95;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
a:hover{color:var(--accent-hover)}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink);margin:0;line-height:1.35;font-weight:700}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;color:inherit;border:0;background:none;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,246,238,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:11px;color:var(--brand);flex:0 0 auto}
.brand:hover{color:var(--brand)}
.brand-mark{width:32px;height:32px;color:var(--accent);flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-family:var(--font-serif);font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--brand)}
.brand-tag{font-size:10px;letter-spacing:.2em;color:var(--ink-2);margin-top:2px}
.nav-chips{display:flex;align-items:center;gap:6px;margin-left:auto}
.chip{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:999px;font-size:14px;color:var(--ink-2);
  border:1px solid transparent;white-space:nowrap;
  transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease;
}
.chip:hover{color:var(--brand);background:var(--brand-soft);border-color:var(--line);transform:translateY(-1px)}
.chip.is-active{background:var(--brand-soft);color:var(--brand);font-weight:700;border-color:#CFE0D4}
.nav-right{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.nav-divider{width:1px;height:24px;background:var(--line)}
.nav-toggle{display:none;position:relative;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface)}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--brand);border-radius:2px;content:"";transform:translateX(-50%);
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{left:0;transform:none;top:-6px}
.nav-toggle span::after{left:0;transform:none;top:6px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#2A1F08;box-shadow:0 8px 20px -12px rgba(201,127,30,.7)}
.btn-primary:hover{background:var(--accent-hover);color:#2A1F08;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost:hover{background:rgba(44,81,66,.08);color:var(--brand);transform:translateY(-1px)}
.btn-line{height:auto;padding:0;color:var(--brand);border-bottom:3px solid var(--accent);border-radius:0}
.btn-line:hover{color:var(--accent-hover);border-bottom-color:var(--accent-hover)}
.btn-line::after{content:"→";margin-left:6px}

/* ---------- Page Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:40px 0 60px;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  min-height:300px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(250,246,238,.96) 0%,rgba(250,246,238,.9) 46%,rgba(232,240,233,.82) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;background-image:var(--honeycomb);background-size:56px 48px;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#BFC7BE}
.breadcrumb .current{color:var(--brand);font-weight:600}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 13px;
  border-radius:999px;background:var(--brand-soft);border:1px solid #CFE0D4;
  font-size:13px;color:var(--brand);font-weight:600;letter-spacing:.02em;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.page-hero h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.35;
  margin:18px 0 14px;max-width:820px;
}
.page-hero .lede{max-width:700px;color:var(--ink-2);font-size:17px;margin-bottom:26px}
.hero-chips{display:flex;gap:10px;flex-wrap:wrap}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 14px;
  border-radius:999px;background:var(--surface);border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);transition:border-color .18s ease,color .18s ease,transform .18s ease;
}
.tag:hover{border-color:var(--accent);color:var(--brand);transform:translateY(-1px)}
.tag b{color:var(--brand);font-weight:700}

/* ---------- Sections ---------- */
.section{padding:var(--section-y) 0}
.section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .kicker{
  display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--accent-hover);
  font-weight:700;margin-bottom:12px;text-transform:uppercase;
}
.section-head h2{font-size:28px;margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:16.5px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- Device 2x2 grid ---------- */
.device-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.device-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.device-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D8D0BE}
.device-card figure{margin:0;aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft)}
.device-card img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.device-card:hover img{transform:scale(1.04)}
.device-body{padding:24px 26px 28px}
.device-body .d-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.device-body h3{font-size:20px}
.device-body .badge{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
}
.device-body p{color:var(--ink-2);font-size:15.5px;margin-bottom:14px}
.device-list li{
  position:relative;padding-left:18px;color:var(--ink-2);font-size:15px;line-height:1.85;margin-bottom:8px;
}
.device-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--accent);
}
.device-list li:last-child{margin-bottom:0}

/* ---------- Compare table ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius-card);box-shadow:var(--shadow-1);border:1px solid var(--line);background:var(--surface)}
.compare-table{width:100%;border-collapse:collapse;min-width:680px}
.compare-table thead th{
  background:var(--brand);color:#F2EDE3;font-family:var(--font-sans);
  font-size:14px;font-weight:600;text-align:left;padding:16px 20px;letter-spacing:.04em;
}
.compare-table tbody td{
  padding:16px 20px;border-top:1px solid var(--line);font-size:15px;color:var(--ink-2);vertical-align:top;
}
.compare-table tbody tr:nth-child(even){background:#FCFAF5}
.compare-table tbody td:first-child{color:var(--ink);font-weight:700;width:22%}
.compare-table tbody td:last-child{color:var(--ink-2)}
.table-note{font-size:13px;color:var(--ink-2);margin-top:14px}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.step .idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:50%;background:var(--accent);color:#2A1F08;
  font-weight:700;font-size:17px;margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;margin-bottom:10px}
.step p{color:var(--ink-2);font-size:15px;line-height:1.85}

/* ---------- Data bars ---------- */
.metrics-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:40px 40px 32px;box-shadow:var(--shadow-1);
  background-image:var(--honeycomb);background-size:56px 48px;
}
.metrics-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:26px}
.metrics-head h3{font-size:22px}
.metrics-head p{color:var(--ink-2);font-size:15px;max-width:520px;margin:8px 0 0}
.metrics-head .big{font-size:38px;font-weight:700;color:var(--accent);line-height:1;font-variant-numeric:tabular-nums}
.metrics-head .big small{display:block;font-size:13px;color:var(--ink-2);font-weight:500;margin-top:8px;letter-spacing:.02em}
.bar-row{
  display:grid;grid-template-columns:220px 1fr 66px;align-items:center;gap:18px;
  padding:14px 0;border-bottom:1px dashed var(--line);
}
.bar-row:last-child{border-bottom:0}
.bar-label{font-size:15px;color:var(--ink);font-weight:600}
.bar-track{height:10px;border-radius:999px;background:var(--brand-soft);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#E9A13B,#EFBE6E)}
.bar-val{text-align:right;font-size:15px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:20px 0;font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--ink);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:9px;height:9px;margin-top:8px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(45deg);transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item .faq-body{padding:0 0 22px;max-width:820px}
.faq-item .faq-body p{color:var(--ink-2);font-size:15.5px;line-height:1.9}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;background:var(--brand);color:#F2EDE3;
  border-radius:var(--radius-lg);padding:56px 52px;
}
.cta-panel::after{content:"";position:absolute;inset:0;background-image:var(--honeycomb);background-size:56px 48px;opacity:.5}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr .9fr;gap:40px;align-items:center}
.cta-panel h2{color:#FFFFFF;font-size:30px;margin-bottom:16px}
.cta-panel p{color:rgba(242,237,227,.86);font-size:16px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.cta-panel .btn-ghost{color:#F2EDE3;border-color:rgba(242,237,227,.55)}
.cta-panel .btn-ghost:hover{background:rgba(242,237,227,.14);color:#FFFFFF}
.cta-card{
  position:relative;z-index:2;background:rgba(255,255,255,.08);border:1px solid rgba(242,237,227,.24);
  border-radius:var(--radius-card);padding:26px 24px;
}
.cta-card h4{color:#FFFFFF;font-size:17px;margin-bottom:14px}
.cta-card li{color:rgba(242,237,227,.88);font-size:14.5px;line-height:1.9;padding-left:16px;position:relative;margin-bottom:8px}
.cta-card li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.cta-card li:last-child{margin-bottom:0}

/* ---------- Link chips ---------- */
.link-chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.link-chips .tag{height:36px;font-size:14px}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(240,236,227,.82);padding:72px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(242,237,227,.16)}
.footer-brand{display:flex;align-items:center;gap:11px;color:var(--accent);margin-bottom:16px}
.footer-brand .brand-name{color:#FFFFFF;font-family:var(--font-serif);font-size:16px;font-weight:700}
.footer-col p{font-size:14.5px;line-height:1.9;color:rgba(240,236,227,.72);margin:0}
.footer-col h4{color:#FFFFFF;font-size:15px;margin-bottom:16px;font-family:var(--font-sans);letter-spacing:.04em}
.footer-col ul li{margin-bottom:10px;font-size:14.5px;color:rgba(240,236,227,.72)}
.footer-col ul li a{color:rgba(240,236,227,.78)}
.footer-col ul li a:hover{color:var(--accent)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;padding-top:22px;flex-wrap:wrap}
.footer-bottom p{font-size:13.5px;color:rgba(240,236,227,.6);margin:0}
.fb-links{display:flex;gap:20px;flex-wrap:wrap}
.fb-links a{font-size:13.5px;color:rgba(240,236,227,.72)}
.fb-links a:hover{color:var(--accent)}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
}
@media (max-width:1023px){
  :root{--section-y:64px}
  .nav-chips{
    position:fixed;left:0;right:0;top:60px;bottom:0;
    flex-direction:column;align-items:stretch;gap:8px;
    background:var(--bg);padding:24px 20px 100px;margin:0;
    overflow-y:auto;transform:translateY(-10px);opacity:0;visibility:hidden;
    transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
    border-top:1px solid var(--line);
  }
  body.nav-open .nav-chips{opacity:1;visibility:visible;transform:none}
  .nav-chips .chip{height:48px;border-radius:12px;font-size:15.5px;padding:0 16px;justify-content:flex-start}
  .nav-chips .chip.is-active{background:var(--brand-soft)}
  .nav-toggle{display:block}
  .nav-divider{display:none}
  .nav-right .btn-primary{display:none}
  .nav-wrap{height:60px}
  .device-grid{grid-template-columns:1fr;gap:20px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .bar-row{grid-template-columns:160px 1fr 60px;gap:14px}
}
@media (max-width:767px){
  :root{--section-y:48px}
  body{font-size:16px}
  .container{padding:0 20px}
  .page-hero{padding:28px 0 44px;min-height:0}
  .page-hero h1{margin:14px 0 12px}
  .page-hero .lede{font-size:15.5px}
  .section-head h2{font-size:24px}
  .device-body{padding:20px}
  .metrics-panel{padding:28px 22px 22px}
  .bar-row{grid-template-columns:1fr;gap:8px;padding:16px 0}
  .bar-val{text-align:left}
  .cta-panel{padding:36px 24px}
  .cta-panel h2{font-size:24px}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:56px 0 24px}
}
@media (max-width:479px){
  .brand-name{font-size:14.5px}
  .brand-tag{display:none}
  .btn{height:42px;padding:0 18px;font-size:14.5px}
  .hero-chips{gap:8px}
  .tag{font-size:12.5px;padding:0 12px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .device-card:hover,.step:hover,.btn:hover,.chip:hover{transform:none}
}

/* roulang page: category4 */
/* ===================== 设计变量 ===================== */
:root{
  --brand:#2C5142;
  --brand-soft:#E8F0E9;
  --accent:#E9A13B;
  --accent-hover:#C97F1E;
  --accent-soft:#FBEFD9;
  --bg:#FAF6EE;
  --surface:#FFFFFF;
  --ink:#1D2621;
  --ink-2:#5B665E;
  --line:#E6DFD2;
  --success:#3E8E5A;
  --warn:#C4553B;
  --info:#4A7C8C;

  --r-btn:10px;
  --r-img:14px;
  --r-card:16px;
  --r-lg:22px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(29,38,33,.04);
  --sh-2:0 1px 2px rgba(29,38,33,.04), 0 8px 24px -12px rgba(44,81,66,.16);
  --sh-3:0 2px 6px rgba(29,38,33,.06), 0 18px 36px -16px rgba(44,81,66,.26);

  --t:180ms ease;
  --serif:"Songti SC","Noto Serif SC","Source Han Serif SC",Georgia,serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ===================== reset / base ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.95;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;line-height:1.35}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--accent-soft);color:var(--brand)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

/* ===================== 容器 / 排版 ===================== */
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.02em;margin-bottom:14px;
}
.section-head h2{font-size:28px;margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:16px}
.lead-narrow{max-width:760px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;background:none;cursor:pointer;
  transition:transform var(--t),background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--accent);color:#2A2113;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:rgba(44,81,66,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-quiet{color:var(--brand);text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:3px;text-underline-offset:4px;padding:11px 4px}
.btn-quiet:hover{color:var(--accent-hover)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;pointer-events:none}
.btn-sm{min-height:38px;padding:8px 15px;font-size:14px}

/* ===================== 徽章 / 标签 ===================== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;line-height:1.4;
}
.badge-accent{background:var(--accent-soft);color:#8A5A12}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}

/* ===================== 页头 / 导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,246,238,.94);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color var(--t),box-shadow var(--t);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:30px;height:30px;flex:none;color:var(--accent)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-family:var(--serif);font-size:15.5px;font-weight:700;color:var(--brand);letter-spacing:.01em}
.brand-tag{font-size:10px;letter-spacing:.2em;color:var(--ink-2);text-transform:uppercase}

.nav-chips{display:flex;align-items:center;gap:6px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex:none;padding:8px 14px;border-radius:var(--r-pill);
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  border:1px solid transparent;
  transition:color var(--t),background-color var(--t),border-color var(--t);
}
.chip:hover{color:var(--brand);background:#fff;border-color:var(--line)}
.chip.is-active{
  background:var(--accent-soft);
  border-color:rgba(233,161,59,.5);
  color:var(--brand);font-weight:700;
}
.nav-right{display:flex;align-items:center;gap:14px;flex:none}
.nav-divider{width:1px;height:24px;background:var(--line)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before{
  content:"";position:absolute;left:50%;width:18px;height:1.8px;background:var(--brand);
  border-radius:2px;transform:translateX(-50%);transition:transform var(--t),opacity var(--t);
}
.nav-toggle span{top:21px}
.nav-toggle span::before{top:-6px}
.nav-toggle[aria-expanded="true"] span{transform:translateX(-50%) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(-90deg);top:0}

/* ===================== 页面 Hero ===================== */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero-bg{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(250,246,238,.96) 0%,rgba(250,246,238,.84) 55%,rgba(250,246,238,.97) 100%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
}
.page-hero-inner{position:relative;padding:38px 0 58px;max-width:860px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-bottom:20px;flex-wrap:wrap}
.crumbs a:hover{color:var(--accent-hover)}
.crumbs .sep{opacity:.5}
.crumbs .now{color:var(--brand);font-weight:600}
.page-hero h1{font-size:clamp(30px,4.2vw,46px);margin-bottom:16px}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:660px;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.hero-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}

/* ===================== 数据条 ===================== */
.stat-shell{margin-top:-34px;position:relative;z-index:2}
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:8px;
  background:linear-gradient(120deg,#E9A13B 0%,#F2BC66 100%);
  border-radius:var(--r-lg);padding:28px 26px;
  box-shadow:var(--sh-3);
}
.stat-item{padding:0 16px;border-left:1px solid rgba(42,33,19,.16)}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{font-size:clamp(30px,3.4vw,40px);font-weight:700;line-height:1.05;color:#2A2113;font-variant-numeric:tabular-nums}
.stat-num small{font-size:14px;font-weight:700;margin-left:3px}
.stat-label{font-size:13.5px;color:#5A4321;margin-top:6px;line-height:1.6}

/* ===================== 现象清单 ===================== */
.scene-list{display:grid;gap:14px}
.scene{
  display:grid;grid-template-columns:52px 1fr auto;gap:20px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 24px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.scene:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(44,81,66,.22)}
.scene-num{
  width:44px;height:44px;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);font-weight:700;display:grid;place-items:center;font-size:15px;
}
.scene h3{font-size:19px;margin-bottom:6px}
.scene p{margin:0;font-size:15px;color:var(--ink-2);line-height:1.8}
.scene-tag{
  font-size:12.5px;color:#8A5A12;border:1px solid rgba(233,161,59,.55);
  background:var(--accent-soft);padding:5px 12px;border-radius:var(--r-pill);white-space:nowrap;
}

/* ===================== 排查顺序步骤 ===================== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
.step{
  position:relative;padding:24px 20px 22px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-idx{
  width:34px;height:34px;border-radius:var(--r-pill);background:var(--brand);color:#F4EFE4;
  display:grid;place-items:center;font-size:14px;font-weight:700;margin-bottom:14px;
}
.step h4{font-size:16.5px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-2);line-height:1.8;margin:0}

/* ===================== FAQ ===================== */
.faq-layout{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start}
.faq-aside h2{font-size:28px;margin-bottom:14px}
.faq-aside p{font-size:15px;color:var(--ink-2);line-height:1.85}
.faq-aside .badge{margin-top:18px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;gap:20px;align-items:flex-start;justify-content:space-between;
  padding:18px 0;font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.7;
  transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-icon{flex:none;width:22px;height:22px;margin-top:6px;color:var(--accent);transition:transform var(--t)}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-item[open] summary{color:var(--brand)}
.faq-body{padding:0 46px 20px 0;font-size:15.5px;line-height:1.9;color:var(--ink-2)}
.faq-body p{margin:0 0 10px}
.faq-body strong{color:var(--brand);font-weight:600}

/* ===================== CTA ===================== */
.cta-panel{
  display:grid;grid-template-columns:1.15fr .85fr;
  background:var(--brand);border-radius:var(--r-lg);overflow:hidden;
  color:#F1ECE1;box-shadow:var(--sh-3);
}
.cta-copy{padding:52px 48px}
.cta-copy h2{color:#fff;font-size:30px;margin-bottom:14px}
.cta-copy p{color:rgba(241,236,225,.82);font-size:16px;margin-bottom:26px}
.cta-copy .btn-ghost{border-color:rgba(244,239,228,.55);color:#F6F1E6}
.cta-copy .btn-ghost:hover{background:rgba(244,239,228,.14)}
.cta-media{position:relative;min-height:300px}
.cta-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cta-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(44,81,66,.55),rgba(44,81,66,0))}

/* ===================== 互链 ===================== */
.cross-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cross-links a{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--brand);
  font-size:14px;font-weight:600;transition:var(--t);
}
.cross-links a:hover{border-color:var(--accent);background:var(--accent-soft);transform:translateY(-2px)}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--brand);color:#EDE7DA;padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(237,231,218,.18)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{color:var(--accent)}
.footer-brand .brand-name{font-family:var(--serif);font-size:16px;font-weight:700;color:#fff}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(237,231,218,.72);margin:0}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-family:var(--sans);letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col li a,.footer-col li span{font-size:14px;color:rgba(237,231,218,.76);transition:color var(--t)}
.footer-col li a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:24px;flex-wrap:wrap}
.footer-bottom p{font-size:13px;color:rgba(237,231,218,.62);margin:0}
.fb-links{display:flex;gap:18px;flex-wrap:wrap}
.fb-links a{font-size:13px;color:rgba(237,231,218,.7);transition:color var(--t)}
.fb-links a:hover{color:var(--accent)}

/* ===================== 弹层与表单 ===================== */
.modal{position:fixed;inset:0;z-index:200;display:none}
.modal.is-open{display:block}
.modal-mask{position:absolute;inset:0;background:rgba(29,38,33,.45)}
.modal-card{
  position:relative;width:min(560px,calc(100% - 40px));
  margin:8vh auto 0;background:var(--surface);border-radius:var(--r-lg);
  padding:34px 34px 30px;box-shadow:var(--sh-3);max-height:84vh;overflow:auto;
}
.modal-card h3{font-size:22px;margin-bottom:10px}
.modal-card .modal-desc{font-size:14.5px;color:var(--ink-2);margin-bottom:22px}
.modal-close{
  position:absolute;top:16px;right:16px;width:38px;height:38px;
  display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;color:var(--ink-2);transition:var(--t);
}
.modal-close:hover{color:var(--brand);border-color:var(--brand)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:var(--ink)}
.field input,.field textarea{
  width:100%;min-height:44px;padding:10px 13px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#FCFAF5;transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.75}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,161,59,.2)}
.choice-row{display:flex;flex-wrap:wrap;gap:9px}
.choice{position:relative}
.choice input{position:absolute;opacity:0;pointer-events:none}
.choice span{
  display:inline-block;padding:8px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);font-size:13.5px;color:var(--ink-2);cursor:pointer;transition:var(--t);
}
.choice input:checked + span{background:var(--accent-soft);border-color:var(--accent);color:var(--brand);font-weight:600}
.choice input:focus-visible + span{outline:2px solid var(--accent);outline-offset:2px}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-2);line-height:1.75;margin-top:6px}
.consent input{margin-top:4px;width:16px;height:16px;accent-color:var(--brand)}
.consent a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}

/* ===================== 响应式 ===================== */
@media (max-width:1279px){
  .container{padding:0 22px}
  .faq-layout{grid-template-columns:260px 1fr;gap:36px}
}
@media (max-width:1023px){
  .nav-toggle{display:block}
  .nav-chips{
    position:fixed;left:0;right:0;top:60px;bottom:0;
    flex-direction:column;align-items:stretch;gap:10px;
    margin-left:0;padding:22px 20px 130px;
    background:var(--bg);border-top:1px solid var(--line);
    opacity:0;transform:translateY(-8px);pointer-events:none;
    transition:opacity var(--t),transform var(--t);overflow-y:auto;
  }
  .nav-chips.is-open{opacity:1;transform:none;pointer-events:auto}
  .nav-chips .chip{
    font-size:16px;padding:14px 16px;border-radius:12px;
    background:#fff;border-color:var(--line);
  }
  .nav-chips .chip.is-active{background:var(--accent-soft);border-color:var(--accent)}
  .nav-wrap{min-height:60px}
  .nav-divider{display:none}
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .step{display:flex;gap:16px;align-items:flex-start}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stat-bar{grid-template-columns:repeat(2,1fr);gap:22px}
  .stat-item{padding:0;border-left:0}
  .faq-layout{grid-template-columns:1fr;gap:24px}
  .cta-panel{grid-template-columns:1fr}
  .cta-media{min-height:220px;order:-1}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.9}
  .section{padding:48px 0}
  .section-head h2{font-size:24px}
  .page-hero-inner{padding:28px 0 44px}
  .hero-sub{font-size:15.5px}
  .scene{grid-template-columns:1fr;gap:14px;padding:18px 20px}
  .scene-tag{justify-self:start}
  .steps{grid-template-columns:1fr}
  .stat-shell{margin-top:-20px}
  .stat-bar{padding:22px 20px;border-radius:var(--r-card)}
  .cta-copy{padding:34px 24px}
  .cta-copy h2{font-size:24px}
  .faq-body{padding-right:8px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .modal-card{margin:0;width:100%;max-height:100%;height:100%;border-radius:0;padding:26px 20px 34px}
}
@media (max-width:479px){
  .container{padding:0 20px}
  .brand-name{font-size:14.5px}
  .btn{padding:10px 16px;font-size:14.5px}
  .hero-actions .btn{flex:1 1 auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:1ms !important;animation-duration:1ms !important}
  html{scroll-behavior:auto}
  .scene:hover,.step:hover,.btn:hover,.cross-links a:hover{transform:none}
}