/* roulang page: index */
:root{
  --ink:#13544A;
  --ink-deep:#0C1F1D;
  --ink-light:#1F7A69;
  --orange:#E4652B;
  --mint:#3FD6B0;
  --paper:#F6F3ED;
  --white:#FFFFFF;
  --text:#1E2624;
  --text-2:#5A6A66;
  --line:#E3DED5;
  --danger:#DC3B3B;
  --r-btn:10px;
  --r-card:14px;
  --r-lg:18px;
  --sh-1:0 1px 2px rgba(12,31,29,.06),0 8px 24px rgba(12,31,29,.06);
  --sh-2:0 14px 36px rgba(12,31,29,.12);
  --c:1200px;
  --num-font:"DIN Alternate","Helvetica Neue",Arial,"PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink-light);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;color:var(--ink-deep);font-weight:700;letter-spacing:.2px}
h1{font-size:clamp(30px,4.4vw,50px);line-height:1.18}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
h3{font-size:20px;line-height:1.4;font-weight:600}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.container{width:100%;max-width:var(--c);margin:0 auto;padding:0 24px}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.grid-margin-y{margin-top:-24px}
.grid-margin-y>.cell{margin-top:24px}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,243,237,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:0 6px 22px rgba(12,31,29,.07)}
.nav-inner{
  display:grid;grid-template-columns:minmax(0,55fr) minmax(0,45fr);
  align-items:center;gap:24px;height:64px;transition:height .25s ease;
}
.site-header.is-scrolled .nav-inner{height:56px}
.nav-left{display:flex;align-items:center;gap:18px;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,#13544A,#1F7A69);
  color:#fff;font-size:17px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{font-size:19px;font-weight:700;color:var(--ink-deep);letter-spacing:.4px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;min-width:0}
.nav-link{
  position:relative;display:inline-block;padding:8px 11px;
  font-size:15px;font-weight:500;color:var(--text);border-radius:8px;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;
  background:var(--orange);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--ink);background:rgba(19,84,74,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::before{
  content:"";position:absolute;left:2px;top:50%;transform:translateY(-50%);
  width:2px;height:16px;background:var(--orange);border-radius:2px;
}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:12px;min-width:0}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  flex:1 1 auto;max-width:280px;transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{color:var(--text-2);font-size:13px}
.nav-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px;line-height:1.4}
.nav-search input::placeholder{color:#9AA6A1}
.nav-search:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(19,84,74,.1)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink-deep);
  align-items:center;justify-content:center;cursor:pointer;
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(12,31,29,.45);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:#fff;z-index:80;padding:22px;
  display:flex;flex-direction:column;gap:4px;overflow-y:auto;
  transform:translateX(102%);transition:transform .3s ease;
  box-shadow:-20px 0 44px rgba(12,31,29,.18);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;color:var(--ink-deep);
}
.drawer a.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 12px;border-radius:10px;
  font-size:16px;color:var(--text);font-weight:500;
}
.drawer a.drawer-link.is-active{color:var(--ink);font-weight:700;background:rgba(19,84,74,.06)}
.drawer a.drawer-link:hover{background:rgba(19,84,74,.05);color:var(--ink)}
.drawer-foot{margin-top:18px;border-top:1px solid var(--line);padding-top:18px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;text-align:center;transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(228,101,43,.24)}
.btn-primary:hover{background:#cf5520;color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(228,101,43,.3)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:rgba(19,84,74,.08);color:var(--ink);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-light:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--ink)}
.text-link i{transition:transform .2s ease}
.text-link:hover i{transform:translateX(4px)}
.text-link:hover{color:var(--orange)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:52px 0 76px;
  background:
    radial-gradient(880px 420px at 90% -12%,rgba(63,214,176,.18),transparent 62%),
    linear-gradient(180deg,#F6F3ED 0%,#F1EDE3 100%);
}
.hero::before{
  content:"";position:absolute;left:-90px;bottom:-140px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(19,84,74,.08),transparent 70%);
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:minmax(0,55fr) minmax(0,45fr);
  gap:52px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.8px;color:var(--ink);
  background:rgba(19,84,74,.08);border:1px solid rgba(19,84,74,.15);
}
.hero h1{margin:20px 0 16px}
.hero-sub{max-width:34em;font-size:17px;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 32px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
  padding-top:24px;border-top:1px solid var(--line);
}
.hero-stats strong{display:block;font-family:var(--num-font);font-size:26px;line-height:1.2;color:var(--orange)}
.hero-stats span{display:block;font-size:13px;color:var(--text-2);line-height:1.6}
.hero-visual{position:relative}
.hero-visual>img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-2);
  background:#E8E3D9;
}
.hero-float{
  position:absolute;left:-18px;bottom:-20px;max-width:258px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:16px 18px;
}
.hero-float .hf-label{font-size:12px;font-weight:600;letter-spacing:.6px;color:var(--ink-light)}
.hero-float .hf-title{font-size:16px;font-weight:700;color:var(--ink-deep);margin:6px 0 4px;line-height:1.5}
.hero-float .hf-desc{font-size:13px;color:var(--text-2);line-height:1.65}

/* ---------- sections ---------- */
.section{padding:76px 0}
.section-white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-dark{background:var(--ink-deep);color:rgba(255,255,255,.86)}
.section-dark h2,.section-dark h3{color:#fff}
.section-dark .sec-desc{color:rgba(255,255,255,.66)}
.section-head{max-width:680px;margin-bottom:40px}
.sec-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:6px;background:rgba(19,84,74,.1);
  font-family:var(--num-font);font-size:12px;font-weight:700;color:var(--ink);
  margin-right:12px;vertical-align:middle;
}
.sec-title{display:flex;align-items:center;gap:12px}
.sec-title::before{content:"";width:3px;height:26px;border-radius:2px;background:var(--orange);flex:none}
.sec-desc{margin:14px 0 0;font-size:16px;color:var(--text-2);max-width:62ch}
.section-dark .sec-index{background:rgba(63,214,176,.16);color:var(--mint)}

/* ---------- cards ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6D0C4}
.card-media{position:relative;overflow:hidden;background:#E8E3D9}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:52%;
  background:linear-gradient(180deg,rgba(12,31,29,0),rgba(12,31,29,.55));
}
.card-media .media-tag{
  position:absolute;left:14px;bottom:12px;z-index:2;color:#fff;
  font-size:13px;font-weight:600;letter-spacing:.4px;
}
.card-body{padding:22px}
.card-title{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink-deep);margin-bottom:8px}
.card:hover .card-title{color:var(--ink)}
.card-desc{font-size:14px;line-height:1.8;color:var(--text-2);margin:0}
.card-meta{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
}
.badge-cat{background:rgba(19,84,74,.1);color:var(--ink)}
.badge-time{background:rgba(228,101,43,.12);color:#B14A1B}
.badge-mint{background:rgba(63,214,176,.18);color:#1B7D63}
.badge-plain{background:var(--paper);color:var(--text-2);border:1px solid var(--line)}

/* ---------- channel grid ---------- */
.channel-card .card-media img{aspect-ratio:4/3}
.channel-points{margin-top:14px;display:grid;gap:8px}
.channel-points li{position:relative;padding-left:20px;font-size:14px;color:var(--text-2);line-height:1.7}
.channel-points li::before{
  content:"";position:absolute;left:2px;top:9px;width:8px;height:8px;border-radius:2px;
  background:var(--mint);
}

/* ---------- stats strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat-item{padding:26px 24px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-item strong{display:block;font-family:var(--num-font);font-size:32px;line-height:1.15;color:var(--orange)}
.stat-item span{display:block;margin-top:6px;font-size:14px;color:var(--text-2)}

/* ---------- timeline ---------- */
.timeline{margin-top:8px}
.tl-item{display:grid;grid-template-columns:120px 40px minmax(0,1fr);gap:0 16px;position:relative;padding-bottom:24px}
.tl-time{
  font-family:var(--num-font);font-size:14px;font-weight:700;color:var(--ink-light);
  padding-top:6px;letter-spacing:.5px;
}
.tl-axis{position:relative;display:flex;justify-content:center}
.tl-axis::before{content:"";position:absolute;top:6px;bottom:-24px;width:2px;background:var(--line)}
.tl-item:last-child .tl-axis::before{display:none}
.tl-dot{
  position:relative;z-index:1;width:12px;height:12px;margin-top:8px;border-radius:50%;
  background:#fff;border:2px solid var(--ink-light);
}
.tl-item.is-now .tl-dot{background:var(--orange);border-color:var(--orange);animation:pulse 2.2s infinite}
.tl-item.is-now .tl-time{color:var(--orange)}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 22px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.tl-card h3{font-size:17px;margin-bottom:6px}
.tl-card p{font-size:14px;color:var(--text-2);margin:0}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(228,101,43,.5)}
  70%{box-shadow:0 0 0 12px rgba(228,101,43,0)}
  100%{box-shadow:0 0 0 0 rgba(228,101,43,0)}
}

/* ---------- rank scroll ---------- */
.rank-scroll{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.rank-scroll::-webkit-scrollbar{height:8px}
.rank-scroll::-webkit-scrollbar-thumb{background:#D8D2C7;border-radius:999px}
.rank-card{
  flex:0 0 296px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.rank-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.rank-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#E8E3D9}
.rank-body{padding:18px}
.rank-no{
  font-family:var(--num-font);font-size:13px;font-weight:700;color:var(--orange);letter-spacing:1px;
}
.rank-body h3{font-size:17px;margin:6px 0 6px}
.rank-body p{font-size:14px;color:var(--text-2);margin:0}
.rank-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:13px;color:var(--text-2)}

/* ---------- plans ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start}
.plan{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh-1);height:100%;
  transition:transform .22s ease,box-shadow .22s ease;
}
.plan:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.plan.is-featured{border-color:#E9BFA6;transform:translateY(-8px);box-shadow:var(--sh-2)}
.plan.is-featured::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--orange);border-radius:var(--r-card) var(--r-card) 0 0;
}
.plan-name{font-size:18px;font-weight:700;color:var(--ink-deep)}
.plan-price{display:flex;align-items:baseline;gap:6px;margin:14px 0 6px}
.plan-price strong{font-family:var(--num-font);font-size:38px;line-height:1;color:var(--orange)}
.plan-price span{font-size:14px;color:var(--text-2)}
.plan-note{font-size:13px;color:var(--text-2);margin-bottom:18px}
.plan-list{display:grid;gap:10px;margin-bottom:24px}
.plan-list li{position:relative;padding-left:24px;font-size:14px;line-height:1.7;color:var(--text)}
.plan-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:1px;font-size:12px;color:var(--ink-light);
}

/* ---------- news ---------- */
.news-card{display:flex;flex-direction:column}
.news-card .card-body{display:flex;flex-direction:column;flex:1}
.news-title{font-size:17px;line-height:1.55;font-weight:600;color:var(--ink-deep);margin-bottom:10px}
.news-title:hover{color:var(--orange)}
.news-desc{
  font-size:14px;color:var(--text-2);line-height:1.8;margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--text-2)}
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;max-width:420px;margin:0 auto;padding:36px 20px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-state svg{width:56px;height:56px;color:#BFB9AE;margin-bottom:14px}
.empty-state p{font-size:14px;color:var(--text-2);margin:0 0 18px}

/* ---------- reviews ---------- */
.review{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);height:100%;
  transition:transform .22s ease,box-shadow .22s ease;
}
.review:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.review p{font-size:15px;line-height:1.85;color:var(--text);margin-bottom:18px}
.review-user{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:16px}
.review-avatar{
  width:42px;height:42px;border-radius:50%;flex:none;
  background:linear-gradient(135deg,#13544A,#3FD6B0);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
}
.review-user strong{display:block;font-size:15px;color:var(--ink-deep)}
.review-user span{display:block;font-size:13px;color:var(--text-2)}

/* ---------- join / form ---------- */
.join-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:52px;align-items:start}
.step-list{display:grid;gap:18px;counter-reset:step}
.step-list li{position:relative;padding-left:48px}
.step-list li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:2px;width:32px;height:32px;border-radius:9px;
  background:rgba(19,84,74,.08);color:var(--ink);
  font-family:var(--num-font);font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.step-list strong{display:block;font-size:16px;color:var(--ink-deep);margin-bottom:4px}
.step-list p{font-size:14px;color:var(--text-2);margin:0}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--sh-1);
}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:500;color:var(--text-2);margin-bottom:7px}
.field label .req{color:var(--danger)}
.input,select.input,textarea.input{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);
  border-radius:var(--r-btn);background:#fff;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
textarea.input{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical}
.input:focus{outline:0;border-color:var(--ink);background:rgba(19,84,74,.03);box-shadow:0 0 0 2px rgba(19,84,74,.14)}
.input.is-error{border-color:var(--danger);box-shadow:0 0 0 2px rgba(220,59,59,.12)}
.err-msg{display:none;font-size:13px;color:var(--danger);margin-top:6px}
.err-msg.show{display:block}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);margin:6px 0 20px}
.check-line input{width:18px;height:18px;margin-top:3px;accent-color:var(--ink);flex:none}
.form-tip{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-btn);
  background:rgba(63,214,176,.16);color:#12604B;font-size:14px;
}
.form-tip.show{display:block}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.is-open{border-color:#D6D0C4;box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink-deep);
}
.faq-q i{color:var(--ink-light);transition:transform .2s ease;font-size:14px;flex:none}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--orange)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-a-inner{padding:0 22px 20px;font-size:15px;color:var(--text-2);line-height:1.85;background:rgba(246,243,237,.6)}
.faq-item.is-open .faq-a{max-height:420px}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(135deg,#0C1F1D 0%,#13544A 100%);
  border-radius:var(--r-lg);padding:48px;color:rgba(255,255,255,.82);
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:36px;align-items:center;
}
.cta-band h2{color:#fff}
.cta-band p{font-size:15px;margin:14px 0 0;color:rgba(255,255,255,.72)}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:rgba(246,243,237,.7);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#1F7A69,#3FD6B0)}
.footer-brand .brand-text{color:#fff}
.footer-about{font-size:14px;line-height:1.9;color:rgba(246,243,237,.6);max-width:34ch}
.footer-col h4{font-size:14px;font-weight:600;letter-spacing:.8px;color:#fff;margin-bottom:18px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(246,243,237,.7)}
.footer-col a:hover{color:var(--orange);text-decoration:underline}
.footer-contact li{font-size:14px;color:rgba(246,243,237,.7);line-height:1.8}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,243,237,.55);
}
.footer-bottom a{color:rgba(246,243,237,.7)}
.footer-bottom a:hover{color:var(--orange)}

@media (max-width:1279px){
  .container{max-width:1080px}
}
@media (max-width:1023px){
  .nav-inner{display:flex;align-items:center;justify-content:space-between;height:56px}
  .main-nav,.nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .nav-right .btn{display:none}
  .hero{padding:40px 0 56px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:40px}
  .hero-visual{order:-1}
  .hero-float{position:static;max-width:none;margin-top:16px;left:auto;bottom:auto}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .plan-grid{grid-template-columns:minmax(0,1fr)}
  .plan.is-featured{transform:none}
  .join-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:36px}
  .cta-band .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:52px 0}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .tl-item{grid-template-columns:88px 28px minmax(0,1fr);gap:0 12px}
  .tl-time{font-size:13px}
  .form-row{grid-template-columns:minmax(0,1fr)}
  .form-card{padding:22px}
  .rank-card{flex:0 0 82vw}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  .hero h1{font-size:27px}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .cta-band .cta-actions .btn{width:100%}
  .cta-band{padding:28px 22px}
  .stat-item{padding:20px 18px}
  .stat-item strong{font-size:26px}
}

/* roulang page: article */
:root{
  --primary:#13544A;
  --primary-dark:#0C1F1D;
  --primary-light:#1F7A69;
  --accent:#E4652B;
  --accent-dark:#C9551F;
  --cyan:#3FD6B0;
  --paper:#F6F3ED;
  --card:#FFFFFF;
  --ink:#1E2624;
  --ink-2:#5A6A66;
  --line:#E3DED5;
  --danger:#DC3B3B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,31,29,.06),0 8px 24px rgba(12,31,29,.06);
  --sh-2:0 14px 36px rgba(12,31,29,.12);
  --sans-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  --sans-num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary-light);text-decoration:none;background-color:transparent;}
a:hover{color:var(--primary-light);}
p{margin:0 0 1.15em;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--primary-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,243,237,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .25s,box-shadow .25s,border-color .25s;
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(12,31,29,.07);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;}
.nav-left{display:flex;align-items:center;gap:32px;min-width:0;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--primary-light),var(--primary-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;letter-spacing:0;
}
.brand-text{font-size:18px;font-weight:700;color:var(--primary-dark);letter-spacing:.5px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink);
  padding:6px 0;text-decoration:none;transition:color .2s;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .25s;
}
.nav-link:hover{color:var(--primary-light);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--primary);font-weight:700;}
.nav-link.is-active::after{width:100%;background:var(--primary);}
.nav-right{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search i{position:absolute;left:13px;font-size:13px;color:var(--ink-2);pointer-events:none;}
.nav-search input{
  width:220px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;padding:0 14px 0 36px;font-size:14px;color:var(--ink);
  outline:none;transition:border-color .2s,box-shadow .2s;
}
.nav-search input::placeholder{color:#9AA6A2;}
.nav-search input:focus{border-color:var(--primary-light);box-shadow:0 0 0 3px rgba(31,122,105,.14);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);
  border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;
  text-decoration:none;cursor:pointer;
  transition:transform .2s,box-shadow .2s,background-color .2s,color .2s,border-color .2s;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(228,101,43,.26);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 26px rgba(228,101,43,.34);}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent;}
.btn-outline:hover{background:rgba(19,84,74,.08);color:var(--primary);}
.btn-light{background:#fff;color:var(--primary-dark);}
.btn-light:hover{background:#F0ECE3;color:var(--primary-dark);transform:translateY(-2px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;color:var(--primary-dark);font-size:16px;
}
.nav-toggle:hover{border-color:var(--primary-light);color:var(--primary-light);}

.mobile-drawer{
  position:fixed;left:0;right:0;top:64px;z-index:70;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 18px 40px rgba(12,31,29,.14);
  padding:8px 24px 20px;
  transform:translateY(-14px);opacity:0;visibility:hidden;
  transition:transform .24s ease,opacity .24s ease,visibility .24s;
}
.mobile-drawer.is-open{transform:none;opacity:1;visibility:visible;}
.mobile-drawer a{
  display:block;height:48px;line-height:48px;font-size:16px;
  color:var(--ink);text-decoration:none;border-bottom:1px dashed var(--line);
}
.mobile-drawer a:last-of-type{border-bottom:none;}
.mobile-drawer a.is-active{color:var(--primary);font-weight:700;}
.mobile-drawer .btn{width:100%;margin-top:12px;}

/* ---------- page head ---------- */
.article-hero{
  padding:40px 0 40px;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--paper) 100%);
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);}
.breadcrumb a{color:var(--ink-2);text-decoration:none;transition:color .2s;}
.breadcrumb a:hover{color:var(--primary-light);}
.breadcrumb .sep{color:#BEB6A8;}
.breadcrumb .current{color:var(--primary);}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(19,84,74,.10);color:var(--primary);
}
.badge-accent{background:rgba(228,101,43,.12);color:var(--accent);}
.badge-cyan{background:rgba(63,214,176,.18);color:#1B7A63;}
.article-hero h1{
  font-size:clamp(26px,3.6vw,44px);line-height:1.24;font-weight:700;
  color:var(--primary-dark);margin:18px 0 20px;max-width:940px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;font-size:13.5px;color:var(--ink-2);}
.meta-row span{padding:0 14px;border-right:1px solid var(--line);line-height:1.6;}
.meta-row span:first-child{padding-left:0;}
.meta-row span:last-child{border-right:none;padding-right:0;}
.meta-row i{margin-right:6px;font-size:12px;color:var(--primary-light);}

/* ---------- article layout ---------- */
.article-section{padding:56px 0 72px;}
.article-layout{display:flex;flex-wrap:nowrap;gap:48px;justify-content:center;align-items:flex-start;}
.article-main{flex:1 1 auto;max-width:760px;min-width:0;}
.article-aside{display:none;flex:0 0 296px;width:296px;}

.toc-fold{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 18px;margin-bottom:22px;box-shadow:var(--sh-1);
}
.toc-fold summary{
  font-size:15px;font-weight:600;color:var(--primary-dark);
  cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;
}
.toc-fold summary::-webkit-details-marker{display:none;}
.toc-fold summary::after{content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--ink-2);}
.toc-fold[open] summary::after{content:"\f106";}
.toc-fold .toc-list{margin-top:10px;}

.article-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px 44px;box-shadow:var(--sh-1);
  font-size:17px;line-height:1.9;color:var(--ink);
  word-wrap:break-word;overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:26px;line-height:1.35;font-weight:600;color:var(--primary-dark);
  margin:40px 0 16px;padding-left:14px;border-left:3px solid var(--accent);
}
.article-body h3{font-size:20px;line-height:1.45;margin:30px 0 12px;color:var(--primary-dark);}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--primary);}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 18px;list-style:revert;}
.article-body li{margin-bottom:8px;}
.article-body a{color:var(--primary-light);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--accent);}
.article-body img{border-radius:12px;margin:24px auto;box-shadow:var(--sh-1);}
.article-body blockquote{
  margin:26px 0;padding:16px 22px;background:var(--paper);
  border-left:3px solid var(--accent);border-radius:0 12px 12px 0;
  color:#3C4744;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--paper);font-weight:600;color:var(--primary-dark);}
.article-body code{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:14px;}
.article-body pre{
  background:var(--primary-dark);color:#E8F1EE;border-radius:12px;
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;border:none;color:inherit;padding:0;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:34px 0;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px;}

.empty-state{
  max-width:420px;margin:0 auto;text-align:center;padding:56px 24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--paper);color:var(--primary-light);font-size:24px;
}
.empty-state p{font-size:14px;color:var(--ink-2);margin:0 0 20px;}

/* ---------- tags / prevnext ---------- */
.tag-block{margin-top:30px;}
.tag-block h4{font-size:13px;letter-spacing:.1em;color:var(--ink-2);margin-bottom:12px;font-weight:600;}
.tag-group{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--paper);border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);text-decoration:none;transition:.2s;
}
.tag:hover{background:rgba(19,84,74,.10);border-color:var(--primary-light);color:var(--primary);}

.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:30px;}
.pn-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;text-decoration:none;box-shadow:var(--sh-1);
  transition:transform .22s,box-shadow .22s,border-color .22s;
}
.pn-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--primary-light);}
.pn-label{font-size:12px;letter-spacing:.08em;color:var(--ink-2);display:flex;align-items:center;gap:8px;}
.pn-label i{color:var(--accent);}
.pn-title{font-size:16px;font-weight:600;line-height:1.5;color:var(--primary-dark);margin-top:10px;}
.pn-card:hover .pn-title{color:var(--primary-light);}
.pn-card.next{text-align:right;}
.pn-card.next .pn-label{justify-content:flex-end;}

/* ---------- aside ---------- */
.toc-card,.side-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:22px;box-shadow:var(--sh-1);margin-bottom:22px;
}
.toc-card{position:sticky;top:88px;}
.toc-card h4,.side-card h4{
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--ink-2);
  margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.toc-card h4::before,.side-card h4::before{
  content:"";width:3px;height:14px;background:var(--accent);border-radius:2px;
}
.toc-list a{
  display:block;font-size:14px;line-height:1.55;color:var(--ink-2);
  padding:7px 0 7px 12px;border-left:2px solid transparent;
  text-decoration:none;transition:color .2s,border-color .2s;
  overflow:hidden;text-overflow:ellipsis;
}
.toc-list a:hover{color:var(--primary-light);}
.toc-list a.is-current{color:var(--primary);border-left-color:var(--accent);font-weight:600;}
.side-list li{padding:12px 0;border-bottom:1px dashed var(--line);}
.side-list li:last-child{border-bottom:none;padding-bottom:0;}
.side-list a{display:block;font-size:14px;font-weight:600;color:var(--primary-dark);line-height:1.55;text-decoration:none;}
.side-list a:hover{color:var(--primary-light);}
.side-list .side-meta{font-size:12.5px;color:var(--ink-2);margin-top:4px;}
.side-cta{
  background:linear-gradient(150deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;border:none;
}
.side-cta h4{color:rgba(255,255,255,.72);}
.side-cta h4::before{background:var(--cyan);}
.side-cta p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);margin:0 0 16px;}
.side-cta .btn{width:100%;}

/* ---------- related ---------- */
.related-section{padding:0 0 80px;}
.section-head{margin-bottom:28px;}
.section-head .section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.12em;color:var(--accent);
  text-transform:uppercase;margin-bottom:10px;
}
.section-head .section-eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;text-decoration:none;
  box-shadow:var(--sh-1);transition:transform .24s,box-shadow .24s;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.post-card .pc-media{position:relative;background:var(--paper);}
.post-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.post-card .pc-badge{position:absolute;top:12px;left:12px;}
.post-card .pc-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-card h3{
  font-size:17px;line-height:1.5;color:var(--primary-dark);margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover h3{color:var(--primary-light);}
.post-card p{
  font-size:14px;line-height:1.75;color:var(--ink-2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .pc-foot{
  margin-top:auto;font-size:12.5px;color:var(--ink-2);
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px dashed var(--line);padding-top:14px;
}
.post-card .pc-foot .more{color:var(--accent);font-weight:600;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;background:var(--primary-dark);color:#fff;
  padding:72px 0;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(12,31,29,.94) 0%,rgba(12,31,29,.68) 100%);
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;}
.cta-inner h2{color:#fff;font-size:clamp(24px,2.8vw,32px);line-height:1.35;margin-bottom:14px;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15.5px;margin:0;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-actions .btn-outline{border-color:rgba(255,255,255,.55);color:#fff;}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.14);color:#fff;}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-dark);color:rgba(246,243,237,.72);padding-top:64px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.25fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--cyan),var(--primary-light));}
.footer-brand .brand-text{color:#fff;font-size:18px;font-weight:700;letter-spacing:.5px;}
.footer-about{font-size:14px;line-height:1.9;color:rgba(246,243,237,.64);margin:18px 0 0;max-width:340px;}
.footer-col h4{
  font-size:13.5px;font-weight:600;letter-spacing:.1em;color:#fff;margin:0 0 18px;
}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:11px;}
.footer-col a{color:rgba(246,243,237,.72);text-decoration:none;transition:color .2s;}
.footer-col a:hover{color:var(--accent);text-decoration:underline;}
.footer-contact li{color:rgba(246,243,237,.64);line-height:1.85;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(246,243,237,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-aside{display:none;}
  .article-layout{gap:0;}
  .article-main{max-width:760px;margin:0 auto;}
}
@media (min-width:1280px){
  .article-aside{display:block;}
  .toc-fold{display:none;}
}
@media (max-width:1023px){
  .container{padding:0 22px;}
  .main-nav{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{height:60px;}
  .brand-text{font-size:17px;}
  .mobile-drawer{top:60px;}
  .cta-inner{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .article-hero{padding:28px 0 30px;}
  .article-body{padding:24px 20px;font-size:16px;line-height:1.85;border-radius:var(--r-md);}
  .article-body h2{font-size:22px;margin:32px 0 14px;}
  .article-body h3{font-size:18px;}
  .article-section{padding:36px 0 56px;}
  .meta-row span{padding:0 10px;font-size:13px;}
  .prevnext{grid-template-columns:1fr;}
  .pn-card.next{text-align:left;}
  .pn-card.next .pn-label{justify-content:flex-start;}
  .card-grid{grid-template-columns:1fr;}
  .related-section{padding-bottom:56px;}
  .cta-band{padding:52px 0;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .nav-right .btn-sm{display:none;}
}
@media (max-width:399px){
  .brand-text{font-size:16px;}
  .article-body{padding:20px 16px;}
}

/* roulang page: category1 */
:root{
  --ink-900:#0C1F1D;
  --ink-800:#13544A;
  --ink-700:#17series;
  --ink-600:#1F7A69;
  --orange:#E4652B;
  --orange-dark:#C8521F;
  --mint:#3FD6B0;
  --paper:#F6F3ED;
  --white:#FFFFFF;
  --text:#1E2624;
  --muted:#5A6A66;
  --line:#E3DED5;
  --danger:#DC3B3B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --sh-1:0 1px 2px rgba(12,31,29,.06),0 8px 24px rgba(12,31,29,.06);
  --sh-2:0 14px 36px rgba(12,31,29,.12);
  --font-num:"DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,
*::before,
*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink-600);text-decoration:none;transition:color .2s ease,background-color .2s ease}
a:hover{color:var(--orange)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3}
p{margin:0 0 1.15em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--ink-800);outline-offset:2px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-head{margin-bottom:40px;max-width:820px}
.sec-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:30px;height:30px;
  border-radius:8px;
  background:rgba(19,84,74,.08);
  color:var(--ink-800);
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  letter-spacing:.5px;
  margin-bottom:14px;
}
.sec-title{
  position:relative;
  padding-left:16px;
  font-size:clamp(24px,2.6vw,32px);
  font-weight:600;
  letter-spacing:.2px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;top:.18em;bottom:.18em;
  width:3px;
  border-radius:3px;
  background:var(--orange);
}
.sec-desc{
  margin-top:16px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
  max-width:760px;
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:15.5px;
  font-weight:600;
  cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(228,101,43,.24)}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--ink-800);border-color:var(--ink-800)}
.btn-outline:hover{background:rgba(19,84,74,.08);color:var(--ink-800);transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* 徽章与标签 */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 11px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  line-height:1;
  letter-spacing:.2px;
}
.badge-cat{background:rgba(19,84,74,.09);color:var(--ink-800)}
.badge-time{background:#EFEAE0;color:var(--muted)}
.badge-hot{background:rgba(228,101,43,.12);color:var(--orange-dark)}
.tag{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:14px;
  font-weight:500;
  transition:.2s;
}
.tag:hover{border-color:var(--ink-800);color:var(--ink-800)}
.tag.is-on{background:rgba(19,84,74,.08);border-color:rgba(19,84,74,.28);color:var(--ink-800);font-weight:600}

/* 头部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(246,243,237,.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(12,31,29,.08);background:rgba(246,243,237,.98)}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:64px;
}
.nav-left{display:flex;align-items:center;gap:34px;min-width:0}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:grid;
  place-items:center;
  width:34px;height:34px;
  border-radius:9px;
  background:var(--ink-800);
  color:#fff;
  font-size:16px;
  font-weight:700;
}
.brand-text{
  font-size:18px;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:.4px;
}
.brand:hover .brand-text{color:var(--ink-800)}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:64px;
  padding:0 14px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:16px;
  height:2px;
  border-radius:2px;
  background:var(--ink-800);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--ink-800)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink-800);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1);background:var(--orange)}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  width:236px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  transition:.2s;
}
.nav-search:focus-within{border-color:var(--ink-800);box-shadow:0 0 0 3px rgba(19,84,74,.08)}
.nav-search i{color:var(--muted);font-size:14px}
.nav-search input{
  flex:1;
  min-width:0;
  border:0;
  outline:none;
  background:transparent;
  font-size:14.5px;
  color:var(--text);
}
.nav-search input::placeholder{color:#9AA6A2}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--ink-800);
  font-size:17px;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--ink-800)}
.drawer-cta{display:none}
.nav-scrim{
  position:fixed;
  inset:0;
  background:rgba(12,31,29,.42);
  opacity:0;
  visibility:hidden;
  transition:.28s;
  z-index:75;
}
.nav-scrim.is-on{opacity:1;visibility:visible}

/* 面包屑 */
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.62);
  margin-bottom:20px;
}
.crumbs a{color:rgba(255,255,255,.72)}
.crumbs a:hover{color:var(--mint)}
.crumbs .sep{opacity:.5}
.crumbs .now{color:#fff}

/* 首屏 */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--ink-900);
  padding:74px 0 62px;
  color:#fff;
}
.hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.34;
}
.hero-veil{
  position:absolute;
  inset:0;
  background:linear-gradient(105deg,rgba(12,31,29,.95) 0%,rgba(12,31,29,.82) 46%,rgba(12,31,29,.52) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:960px}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid rgba(63,214,176,.45);
  background:rgba(63,214,176,.12);
  color:var(--mint);
  font-size:13px;
  font-weight:600;
  letter-spacing:.4px;
  margin-bottom:22px;
}
.page-hero h1{
  color:#fff;
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.18;
  font-weight:700;
  letter-spacing:.3px;
  max-width:16em;
}
.hero-lead{
  margin-top:22px;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.82);
  max-width:640px;
}
.anchor-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-top:44px;
  padding-top:32px;
  border-top:1px solid rgba(255,255,255,.14);
}
.hero-stats .st-num{
  display:block;
  font-family:var(--font-num);
  font-size:30px;
  font-weight:700;
  color:var(--mint);
  letter-spacing:.5px;
  line-height:1.2;
}
.hero-stats .st-num small{font-size:15px;font-weight:600;margin-left:2px}
.hero-stats .st-label{
  display:block;
  margin-top:6px;
  font-size:13.5px;
  color:rgba(255,255,255,.66);
}

/* 筛选条 */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
}
.filter-tags{display:flex;flex-wrap:wrap;gap:10px}
.filter-note{font-size:13.5px;color:var(--muted)}

/* 主题卡片流 */
.topic-list{margin-top:32px}
.topic-card{
  display:grid;
  grid-template-columns:minmax(0,42%) minmax(0,1fr);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .28s ease,box-shadow .28s ease;
  margin-bottom:24px;
}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.topic-card:hover h3{color:var(--ink-800)}
.topic-media{position:relative;background:#EDE8DF;overflow:hidden;min-height:100%}
.topic-media img{width:100%;height:100%;object-fit:cover;min-height:238px;transition:transform .5s ease}
.topic-card:hover .topic-media img{transform:scale(1.03)}
.topic-index{
  position:absolute;
  left:16px;top:16px;
  display:grid;
  place-items:center;
  width:38px;height:38px;
  border-radius:10px;
  background:rgba(12,31,29,.72);
  color:#fff;
  font-family:var(--font-num);
  font-size:14px;
  font-weight:700;
  letter-spacing:.5px;
  backdrop-filter:blur(4px);
}
.topic-body{padding:26px 28px;display:flex;flex-direction:column}
.meta-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.topic-body h3{
  font-size:21px;
  font-weight:600;
  line-height:1.45;
  margin-bottom:12px;
  transition:color .2s ease;
}
.topic-body > p{
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.fact-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:4px;
  padding-top:16px;
  border-top:1px dashed var(--line);
}
.fact-list li{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13.5px;
  color:var(--muted);
}
.fact-list i{color:var(--ink-600);font-size:12.5px}
.card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-top:auto;
  padding-top:18px;
}
.heat{font-size:13px;color:var(--orange-dark);font-weight:600;font-family:var(--font-num);letter-spacing:.4px}

/* 分页 */
.pager{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  margin-top:44px;
}
.pager a,
.pager span{
  display:grid;
  place-items:center;
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--text);
  font-family:var(--font-num);
  font-size:15px;
  font-weight:600;
  transition:.2s;
}
.pager a:hover{border-color:var(--ink-800);color:var(--ink-800);transform:translateY(-2px)}
.pager .is-current{background:var(--ink-800);border-color:var(--ink-800);color:#fff}
.pager .pager-more{border:0;background:transparent;color:var(--muted)}

/* 更新日历 */
.calendar-wrap{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:34px 34px 14px;
  box-shadow:var(--sh-1);
}
.timeline{position:relative;padding-left:28px}
.timeline::before{
  content:"";
  position:absolute;
  left:5px;top:8px;bottom:22px;
  width:2px;
  background:var(--line);
}
.tl-item{position:relative;padding:0 0 26px 0}
.tl-item::before{
  content:"";
  position:absolute;
  left:-28px;top:9px;
  width:12px;height:12px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--line);
}
.tl-item.is-now::before{border-color:var(--orange);background:var(--orange);box-shadow:0 0 0 5px rgba(228,101,43,.16)}
.tl-time{
  display:inline-block;
  font-family:var(--font-num);
  font-size:13.5px;
  font-weight:700;
  color:var(--ink-800);
  letter-spacing:.6px;
  margin-bottom:6px;
}
.tl-item.is-now .tl-time{color:var(--orange-dark)}
.tl-item h3{font-size:17.5px;font-weight:600;margin-bottom:6px}
.tl-item p{color:var(--muted);font-size:15px;margin:0;max-width:720px}

/* 参与步骤 */
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
  margin-top:36px;
}
.step-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-no{
  display:inline-block;
  font-family:var(--font-num);
  font-size:14px;
  font-weight:700;
  color:var(--orange);
  letter-spacing:1px;
  margin-bottom:12px;
}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.step-card p{color:var(--muted);font-size:15px;margin:0}

/* FAQ */
.faq-list{max-width:860px;margin-top:34px}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{border-color:rgba(19,84,74,.35);box-shadow:var(--sh-1)}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  padding:18px 22px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
  cursor:pointer;
}
.faq-q:hover{color:var(--ink-800)}
.faq-icon{
  flex:0 0 auto;
  display:grid;
  place-items:center;
  width:26px;height:26px;
  border-radius:8px;
  background:rgba(19,84,74,.08);
  color:var(--ink-800);
  font-size:12px;
  transition:transform .24s ease,background-color .24s ease,color .24s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--orange);color:#fff}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
  background:#FBF9F5;
}
.faq-a p{
  margin:0;
  padding:2px 22px 20px;
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
}

/* 底部 CTA */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink-900);
  border-radius:var(--r-lg);
  padding:52px 48px;
  color:#fff;
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);
  gap:36px;
  align-items:center;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-90px;top:-90px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(63,214,176,.24) 0%,rgba(63,214,176,0) 68%);
}
.cta-band h2{
  color:#fff;
  font-size:clamp(23px,2.5vw,30px);
  font-weight:600;
  line-height:1.35;
  margin-bottom:14px;
}
.cta-band p{
  margin:0;
  color:rgba(255,255,255,.76);
  font-size:15.5px;
  max-width:560px;
}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.cta-actions .btn{width:100%}
.cta-note{font-size:13px;color:rgba(255,255,255,.6);width:100%;text-align:center}

/* 页脚 */
.site-footer{
  margin-top:96px;
  background:var(--ink-900);
  color:rgba(246,243,237,.7);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.2fr 1fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:var(--mint)}
.footer-brand .brand-text{color:#fff;font-size:17px}
.footer-about{font-size:14px;line-height:1.9;color:rgba(246,243,237,.66);margin:0;max-width:340px}
.footer-col h4{
  color:#fff;
  font-size:14px;
  font-weight:600;
  letter-spacing:1px;
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:11px;font-size:14px;line-height:1.7}
.footer-col a{color:rgba(246,243,237,.7)}
.footer-col a:hover{color:var(--orange);text-decoration:underline}
.footer-contact li{color:rgba(246,243,237,.62)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 26px;
  font-size:13px;
  color:rgba(246,243,237,.5);
}

/* 响应式 */
@media (max-width:1279px){
  .nav-search{width:190px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .nav-toggle{display:grid}
  .nav-right .btn-primary{display:none}
  .main-nav{
    position:fixed;
    top:0;left:0;
    width:min(320px,86vw);
    height:100vh;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:84px 22px 26px;
    background:#fff;
    box-shadow:0 0 44px rgba(12,31,29,.2);
    transform:translateX(-102%);
    transition:transform .3s ease;
    z-index:78;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:none}
  .main-nav .nav-link{
    height:48px;
    width:100%;
    padding:0;
    font-size:16px;
    border-bottom:1px solid var(--line);
  }
  .main-nav .nav-link::after{display:none}
  .main-nav .nav-link.is-active{color:var(--ink-800)}
  .main-nav .nav-link.is-active::before{
    content:"";
    position:absolute;
    left:-22px;top:14px;bottom:14px;
    width:2px;
    background:var(--orange);
    border-radius:2px;
  }
  .nav-link{position:relative}
  .drawer-cta{
    display:flex;
    width:100%;
    margin-top:22px;
  }
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .steps{grid-template-columns:1fr;gap:16px}
  .cta-band{grid-template-columns:1fr;padding:40px 30px;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .page-hero{padding:56px 0 48px}
  .topic-card{
    grid-template-columns:1fr;
  }
  .topic-media img{min-height:0;aspect-ratio:16/9;height:auto}
  .topic-body{padding:22px 20px}
  .topic-body h3{font-size:19px}
  .calendar-wrap{padding:24px 20px 6px}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-about{max-width:none}
}
@media (max-width:519px){
  body{font-size:16px}
  .brand-text{font-size:16px}
  .nav-inner{gap:12px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-stats .st-num{font-size:25px}
  .anchor-row .btn{width:100%}
  .filter-bar{padding:16px}
  .cta-band{padding:32px 20px}
  .pager a,.pager span{width:38px;height:38px;font-size:14px}
  .pager{gap:8px}
}

/* roulang page: category2 */
:root{
  --ink:#13544A;
  --ink-dark:#0C1F1D;
  --ink-deep:#08211E;
  --ink-light:#1F7A69;
  --accent:#E4652B;
  --accent-dark:#C9521F;
  --mint:#3FD6B0;
  --paper:#F6F3ED;
  --white:#FFFFFF;
  --text:#1E2624;
  --text-2:#5A6A66;
  --line:#E3DED5;
  --error:#DC3B3B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,31,29,.06),0 8px 24px rgba(12,31,29,.06);
  --sh-2:0 14px 36px rgba(12,31,29,.12);
  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"Barlow","DIN Alternate","HarmonyOS Sans","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;padding:64px 0 0;font-family:var(--font);font-size:16px;line-height:1.85;color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
ul,ol,li{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink-light);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.grid-padding-x{margin-left:-12px;margin-right:-12px}
.grid-padding-x>.cell{padding-left:12px;padding-right:12px}
.grid-padding-y{margin-top:-12px;margin-bottom:-12px}
.grid-padding-y>.cell{padding-top:12px;padding-bottom:12px}
::selection{background:rgba(228,101,43,.2)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-sm);font-size:15px;font-weight:600;line-height:1;cursor:pointer;transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(228,101,43,.26)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 26px rgba(228,101,43,.32)}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:rgba(19,84,74,.08);color:var(--ink)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.46);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 32px;font-size:16px}
.btn:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink)}
.text-link i{transition:transform .2s ease}
.text-link:hover i{transform:translateX(4px)}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;height:64px;background:var(--paper);border-bottom:1px solid transparent;transition:height .25s ease,background .25s ease,border-color .25s ease,box-shadow .25s ease}
.site-header.is-scrolled{height:56px;background:var(--white);border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-left{display:flex;align-items:center;gap:28px;min-width:0}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:32px;height:32px;border-radius:9px;background:var(--ink);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700;line-height:1}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.4px;color:var(--ink-dark)}
.brand:hover .brand-text{color:var(--ink)}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{position:relative;display:inline-block;padding:8px 12px;font-size:15px;font-weight:500;color:var(--text-2);border-radius:8px;transition:color .2s ease}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search i{position:absolute;left:13px;font-size:13px;color:var(--text-2);pointer-events:none}
.nav-search input{width:224px;height:38px;padding:0 14px 0 34px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--white);font-size:14px;color:var(--text);outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.nav-search input::placeholder{color:#98A39F}
.nav-search input:focus{border-color:var(--ink);box-shadow:0 0 0 2px rgba(19,84,74,.16)}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--white);color:var(--ink);place-items:center;font-size:16px}

/* ---------- 页面首屏 ---------- */
.page-hero{position:relative;background:var(--ink-dark);color:#fff;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:.42}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,31,29,.62) 0%,rgba(12,31,29,.9) 100%)}
.hero-inner{position:relative;z-index:2;padding-top:56px;padding-bottom:68px;max-width:900px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(246,243,237,.62);margin-bottom:22px}
.breadcrumb a{color:rgba(246,243,237,.72)}
.breadcrumb a:hover{color:var(--mint)}
.breadcrumb .sep{color:rgba(246,243,237,.36)}
.breadcrumb .current{color:var(--mint)}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:1.2px;color:var(--mint);margin-bottom:16px}
.hero-kicker .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(228,101,43,.22)}
.hero-title{font-size:clamp(30px,4.4vw,50px);line-height:1.18;font-weight:700;letter-spacing:-.5px;color:#fff}
.hero-lead{margin-top:20px;max-width:640px;font-size:16.5px;line-height:1.85;color:rgba(246,243,237,.78)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-tags .tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);font-size:13px;color:rgba(246,243,237,.88)}

/* ---------- 统计条 ---------- */
.stat-strip{background:var(--white);border-bottom:1px solid var(--line)}
.stat-item{display:flex;align-items:baseline;gap:12px;padding:28px 0}
.stat-num{font-family:var(--font-num);font-size:clamp(30px,3.4vw,42px);font-weight:700;line-height:1;color:var(--accent)}
.stat-label{font-size:14px;color:var(--text-2)}
.stat-grid>.cell+.cell{border-left:1px solid var(--line)}
.stat-grid>.cell+.cell .stat-item{padding-left:28px}

/* ---------- 板块骨架 ---------- */
.section{padding:76px 0}
.section--tight{padding:56px 0}
.section--paper{background:var(--paper)}
.section--white{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;gap:18px;margin-bottom:36px}
.section-mark{flex:0 0 3px;align-self:stretch;background:var(--accent);border-radius:2px;min-height:64px}
.section-num{display:block;font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:2px;color:var(--accent);margin-bottom:8px}
.section-title{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:600;letter-spacing:-.3px;color:var(--ink-dark)}
.section-desc{margin-top:12px;max-width:660px;font-size:15px;color:var(--text-2)}

/* ---------- 密排编号列表 ---------- */
.ver-list{border-top:1px solid var(--line)}
.ver-item{display:grid;grid-template-columns:56px 1fr 108px;gap:24px;align-items:start;padding:22px 8px;border-bottom:1px dashed var(--line);transition:background .2s ease,padding .2s ease}
.ver-item:hover{background:var(--white);padding-left:16px;padding-right:16px}
.ver-index{font-family:var(--font-num);font-size:20px;font-weight:700;line-height:1.6;color:#B9C3BF;transition:color .2s ease}
.ver-item:hover .ver-index{color:var(--accent)}
.ver-title{font-size:18px;line-height:1.55;font-weight:600;color:var(--ink-dark);transition:color .2s ease}
.ver-item:hover .ver-title{color:var(--ink)}
.ver-summary{margin-top:6px;font-size:14.5px;line-height:1.7;color:var(--text-2)}
.ver-time{font-family:var(--font-num);font-size:13.5px;color:var(--text-2);text-align:right;line-height:1.9;white-space:nowrap}
.ver-flag{display:inline-flex;align-items:center;height:22px;padding:0 10px;margin-right:8px;border-radius:var(--r-pill);font-size:12px;font-weight:600;background:rgba(19,84,74,.08);color:var(--ink);vertical-align:middle}
.ver-flag.is-accent{background:rgba(228,101,43,.12);color:var(--accent-dark)}

/* ---------- 分页 ---------- */
.pager{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;margin-top:44px}
.page-btn{display:grid;place-items:center;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--white);font-family:var(--font-num);font-size:14px;color:var(--text-2);transition:all .2s ease}
.page-btn:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px)}
.page-btn.is-active{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:700}
.page-btn.is-active:hover{transform:none;color:#fff}
.page-btn.is-disabled{opacity:.45;cursor:not-allowed}
.pager-total{width:100%;text-align:center;margin-top:14px;font-size:13px;color:var(--text-2)}

/* ---------- 卡片 ---------- */
.card{height:100%;background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);padding:26px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6D0C5}
.card-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:rgba(19,84,74,.08);color:var(--ink);font-size:16px;margin-bottom:18px}
.card-title{font-size:19px;font-weight:600;line-height:1.45;color:var(--ink-dark)}
.card:hover .card-title{color:var(--ink)}
.card-text{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-2)}
.card-list{margin-top:16px;display:grid;gap:8px}
.card-list li{position:relative;padding-left:20px;font-size:14px;color:var(--text-2)}
.card-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--mint)}

/* ---------- 图文分区 ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#E9E4DA}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,31,29,0) 45%,rgba(12,31,29,.5) 100%)}
.split-caption{position:absolute;left:20px;right:20px;bottom:18px;z-index:2;color:#fff;font-size:14px}
.split-caption strong{display:block;font-size:16px;font-weight:600;margin-bottom:2px}
.step-list{display:grid;gap:14px;margin-top:24px}
.step-list li{display:flex;gap:14px;align-items:flex-start}
.step-no{flex:0 0 30px;height:30px;border-radius:9px;background:rgba(19,84,74,.08);color:var(--ink);font-family:var(--font-num);font-size:13px;font-weight:700;display:grid;place-items:center}
.step-text{font-size:14.5px;color:var(--text-2);line-height:1.8}
.step-text b{color:var(--ink-dark);font-weight:600}
.split-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.is-open{border-color:rgba(19,84,74,.34);box-shadow:var(--sh-1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);transition:color .2s ease}
.faq-q:hover{color:var(--ink)}
.faq-q:focus-visible{outline:2px solid var(--ink);outline-offset:-2px}
.faq-icon{flex:0 0 auto;font-size:14px;color:var(--ink-light);transition:transform .25s ease,color .25s ease}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--text-2);background:rgba(246,243,237,.6)}

/* ---------- 通栏 CTA ---------- */
.cta-band{position:relative;background:var(--ink-deep);color:#fff;padding:72px 0;overflow:hidden}
.cta-band::before{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;background:rgba(63,214,176,.08)}
.cta-band::after{content:"";position:absolute;left:-140px;bottom:-160px;width:320px;height:320px;border-radius:50%;background:rgba(228,101,43,.1)}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-copy h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:600;color:#fff}
.cta-copy p{margin-top:12px;max-width:560px;font-size:15px;color:rgba(246,243,237,.76)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-dark);color:rgba(246,243,237,.7);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1.2fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.14)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:var(--accent)}
.footer-brand .brand-text{color:#fff}
.footer-about{font-size:14px;line-height:1.85;color:rgba(246,243,237,.6);max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;letter-spacing:1.4px;color:#fff;margin-bottom:18px}
.footer-col ul li{margin-bottom:11px;font-size:14px}
.footer-col a{color:rgba(246,243,237,.7)}
.footer-col a:hover{color:var(--accent);text-decoration:underline}
.footer-contact li{font-size:13.5px;line-height:1.8;color:rgba(246,243,237,.58)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding:22px 0 26px;font-size:13px;color:rgba(246,243,237,.5)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-search{display:none}
  .nav-toggle{display:grid}
  .main-nav{position:fixed;top:64px;left:0;right:0;bottom:0;z-index:75;flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 32px;background:var(--white);border-top:1px solid var(--line);overflow-y:auto;transform:translateX(-100%);transition:transform .28s ease}
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{padding:0 8px;line-height:48px;font-size:16px;border-radius:0;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--ink);box-shadow:inset 3px 0 0 var(--accent);padding-left:16px}
  .site-header.is-scrolled .main-nav{top:56px}
  .stat-grid>.cell+.cell{border-left:0}
  .stat-grid>.cell+.cell .stat-item{padding-left:0}
  .split{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-about{max-width:none}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section--tight{padding:44px 0}
  .hero-inner{padding-top:40px;padding-bottom:52px}
  .hero-lead{font-size:15.5px}
  .stat-item{padding:22px 0}
  .ver-item{grid-template-columns:40px 1fr;gap:12px;padding:20px 4px}
  .ver-item:hover{padding-left:8px;padding-right:8px}
  .ver-index{font-size:17px}
  .ver-title{font-size:16.5px}
  .ver-time{grid-column:2;text-align:left;margin-top:-4px;font-size:13px}
  .card{padding:22px}
  .cta-band{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-text{font-size:15.5px}
  .hero-tags .tag{font-size:12px;height:30px;padding:0 12px}
  .btn-lg{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --ink:#13544A;
  --ink-deep:#0C1F1D;
  --ink-light:#1F7A69;
  --orange:#E4652B;
  --orange-deep:#C9501C;
  --mint:#3FD6B0;
  --paper:#F6F3ED;
  --white:#FFFFFF;
  --text:#1E2624;
  --text-2:#5A6A66;
  --line:#E3DED5;
  --danger:#DC3B3B;
  --r-btn:10px;
  --r-card:14px;
  --r-big:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,31,29,.06),0 8px 24px rgba(12,31,29,.06);
  --sh-2:0 14px 36px rgba(12,31,29,.12);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:72px; --sp-9:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  background-image:radial-gradient(rgba(19,84,74,.035) 1px,transparent 1px);
  background-size:22px 22px;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink-light);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--orange);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--ink);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:600;letter-spacing:.2px;}
p{margin:0 0 1.15em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:72px 0;}
.section-tight{padding:48px 0;}
.section-head{margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;color:var(--ink-light);
  text-transform:uppercase;margin-bottom:10px;
}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35;position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--ink) 0%,var(--mint) 100%);
}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15px;max-width:760px;}
.num-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:7px;background:rgba(19,84,74,.08);
  color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.5px;margin-right:10px;
  vertical-align:middle;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,243,237,.94);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.97);
  border-bottom-color:var(--line);
  box-shadow:0 6px 18px rgba(12,31,29,.06);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:64px;transition:min-height .2s ease;
}
.site-header.is-scrolled .nav-inner{min-height:56px;}
.nav-left{display:flex;align-items:center;gap:28px;flex:1 1 auto;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--ink) 0%,var(--ink-light) 100%);
  color:#fff;font-size:17px;font-weight:700;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(19,84,74,.28);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.4px;white-space:nowrap;color:var(--text);}
.main-nav{display:flex;align-items:center;gap:6px;min-width:0;}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;font-size:15px;font-weight:500;
  color:var(--text-2);border-radius:8px;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--ink);background:rgba(19,84,74,.05);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:700;background:rgba(19,84,74,.07);}
.nav-link.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:3px;background:var(--orange);
}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 14px;height:40px;width:230px;transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(19,84,74,.1);}
.nav-search i{color:var(--text-2);font-size:13px;}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;font-size:14px;height:38px;
}
.nav-search input::placeholder{color:#93A29D;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:var(--white);color:var(--ink);font-size:16px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--ink);}
.mobile-drawer{
  display:none;background:var(--white);border-bottom:1px solid var(--line);
  box-shadow:0 16px 30px rgba(12,31,29,.1);
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .drawer-inner{padding:12px 24px 20px;}
.mobile-drawer a{
  display:block;font-size:16px;line-height:48px;color:var(--text);border-bottom:1px dashed var(--line);
}
.mobile-drawer a.is-active{color:var(--ink);font-weight:700;border-left:3px solid var(--orange);padding-left:10px;}
.mobile-drawer .btn{margin-top:16px;width:100%;justify-content:center;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;line-height:1;padding:0 22px;height:46px;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;font-size:14px;padding:0 18px;}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 18px rgba(228,101,43,.26);}
.btn-primary:hover{background:var(--orange-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(228,101,43,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:rgba(19,84,74,.08);color:var(--ink);transform:translateY(-2px);}
.btn-light{background:var(--white);color:var(--ink);border-color:var(--line);}
.btn-light:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-text i{transition:transform .18s ease;}
.btn-text:hover{color:var(--orange);}
.btn-text:hover i{transform:translateX(4px);}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1;background:rgba(19,84,74,.09);color:var(--ink);
}
.badge-time{background:#F1EDE4;color:#7A6A4E;}
.badge-hot{background:rgba(228,101,43,.12);color:var(--orange-deep);}
.badge-mint{background:rgba(63,214,176,.18);color:#17705C;}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{
  background:var(--white);border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:14px 0;font-size:13px;color:var(--text-2);
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{color:#C6C0B4;}
.breadcrumb .current{color:var(--ink);font-weight:600;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background-color:var(--ink-deep);
  background-image:linear-gradient(115deg,rgba(12,31,29,.94) 0%,rgba(12,31,29,.78) 42%,rgba(19,84,74,.6) 100%),
    url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,214,176,.22) 0%,transparent 68%);
}
.page-hero .hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;
  align-items:center;padding:64px 0 68px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.hero-tags .badge{background:rgba(255,255,255,.14);color:#DFF5EF;}
.hero-tags .badge.accent{background:rgba(228,101,43,.9);color:#fff;}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4vw,46px);line-height:1.2;font-weight:700;letter-spacing:.5px;
}
.page-hero h1 em{font-style:normal;color:var(--mint);}
.hero-sub{margin-top:18px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.82);max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-anchors{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.16);
}
.hero-anchors a{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:rgba(255,255,255,.85);
  padding:7px 14px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.22);
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.hero-anchors a:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-big);
  border:1px solid rgba(255,255,255,.16);box-shadow:0 24px 50px rgba(0,0,0,.35);
}
.hero-float{
  position:absolute;left:-18px;bottom:-20px;background:var(--white);color:var(--text);
  border-radius:14px;padding:14px 18px;box-shadow:var(--sh-2);border:1px solid var(--line);
  min-width:190px;
}
.hero-float strong{display:block;font-size:24px;line-height:1.2;color:var(--orange);font-weight:700;}
.hero-float span{font-size:13px;color:var(--text-2);}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.16);
  border-top:1px solid rgba(255,255,255,.16);position:relative;z-index:2;
}
.hero-stats div{background:rgba(12,31,29,.55);padding:18px 20px;}
.hero-stats strong{display:block;font-size:26px;font-weight:700;color:var(--mint);line-height:1.2;}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.7);}

/* ---------- filter bar ---------- */
.filter-bar{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:18px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-top:-36px;position:relative;z-index:5;
}
.filter-left{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.filter-label{font-size:13px;font-weight:600;color:var(--text-2);margin-right:4px;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);background:#F4F1EA;border:1px solid transparent;cursor:pointer;
  transition:all .18s ease;
}
.chip:hover{color:var(--ink);background:rgba(19,84,74,.08);}
.chip.is-active{background:var(--ink);color:#fff;border-color:var(--ink);}
.filter-right{display:flex;align-items:center;gap:10px;}
.select-wrap{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--white);
}
.select-wrap i{font-size:12px;color:var(--text-2);}
.select-wrap select{border:0;outline:none;background:transparent;font-size:14px;color:var(--text);cursor:pointer;}

/* ---------- card waterfall ---------- */
.waterfall{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:32px;
}
.wf-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.wf-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6CFC2;}
.wf-media{position:relative;overflow:hidden;background:#EDE9E1;}
.wf-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.wf-card:hover .wf-media img{transform:scale(1.04);}
.wf-media .media-badge{
  position:absolute;left:14px;top:14px;
}
.wf-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.wf-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.wf-body h3{font-size:19px;line-height:1.45;font-weight:600;}
.wf-body h3 a{color:var(--text);}
.wf-card:hover .wf-body h3 a{color:var(--ink);}
.wf-body .desc{font-size:15px;color:var(--text-2);line-height:1.8;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.wf-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
}
.wf-foot .stock{font-size:13px;color:var(--text-2);}
.wf-foot .stock b{color:var(--orange);font-size:15px;}

/* ---------- steps ---------- */
.steps-panel{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-big);
  box-shadow:var(--sh-1);padding:36px;display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start;
}
.step-list{counter-reset:step;}
.step-item{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line);
}
.step-item:last-child{border-bottom:0;padding-bottom:0;}
.step-item .step-no{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(19,84,74,.08);color:var(--ink);font-weight:700;font-size:14px;
}
.step-item.is-current .step-no{background:var(--orange);color:#fff;box-shadow:0 0 0 5px rgba(228,101,43,.14);}
.step-item h4{font-size:16px;margin-bottom:4px;}
.step-item p{margin:0;font-size:14px;color:var(--text-2);line-height:1.75;}
.steps-aside{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
}
.steps-aside h4{font-size:16px;margin-bottom:14px;}
.progress-row{margin-bottom:18px;}
.progress-row .row-top{display:flex;justify-content:space-between;font-size:13px;color:var(--text-2);margin-bottom:8px;}
.progress-row .row-top b{color:var(--ink);}
.progress-track{height:8px;border-radius:var(--r-pill);background:#E8E3D9;overflow:hidden;}
.progress-track span{display:block;height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--ink-light),var(--mint));}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2);
  padding:8px 0;border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list i{color:var(--mint);margin-top:5px;font-size:13px;}

/* ---------- highlight strip ---------- */
.strip{
  background:var(--ink-deep);color:#fff;border-radius:var(--r-big);
  padding:40px;display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center;
  position:relative;overflow:hidden;
}
.strip::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(228,101,43,.32) 0%,transparent 70%);
}
.strip h3{color:#fff;font-size:clamp(20px,2.2vw,26px);line-height:1.4;position:relative;z-index:2;}
.strip p{color:rgba(255,255,255,.76);font-size:15px;margin:14px 0 0;position:relative;z-index:2;max-width:540px;}
.strip .strip-actions{display:flex;gap:14px;justify-content:flex-end;position:relative;z-index:2;flex-wrap:wrap;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:#D6CFC2;}
.faq-item.is-open{border-color:var(--ink);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;text-align:left;cursor:pointer;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);line-height:1.5;
}
.faq-q i{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:rgba(19,84,74,.08);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-size:12px;transition:transform .2s ease,background-color .2s ease;
}
.faq-item.is-open .faq-q i{transform:rotate(45deg);background:var(--orange);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .24s ease;
  background:#FBF9F5;
}
.faq-a p{margin:0;padding:0 22px 20px;font-size:15px;color:var(--text-2);line-height:1.85;}

/* ---------- CTA + form ---------- */
.cta-panel{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-big);
  box-shadow:var(--sh-1);overflow:hidden;
  display:grid;grid-template-columns:1fr 1fr;
}
.cta-left{padding:40px;background:linear-gradient(160deg,rgba(19,84,74,.06),rgba(63,214,176,.1));}
.cta-left h2{font-size:clamp(22px,2.4vw,30px);line-height:1.4;padding-left:0;}
.cta-left h2::before{display:none;}
.cta-left p{color:var(--text-2);font-size:15px;margin-top:14px;}
.cta-left .check-list{margin-top:20px;}
.cta-right{padding:40px;}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:8px;}
.form-row input,.form-row select,.form-row textarea{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--white);outline:none;transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.form-row textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  border-color:var(--ink);box-shadow:0 0 0 3px rgba(19,84,74,.1);background:#FCFBF8;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-2);line-height:1.7;margin:6px 0 20px;}
.consent input{width:16px;height:16px;margin-top:4px;accent-color:var(--ink);flex:0 0 auto;}
.form-right .btn{width:100%;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.1fr 1fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--mint) 0%,var(--ink-light) 100%);color:#08211D;}
.footer-brand .brand-text{color:#fff;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:0;max-width:340px;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;letter-spacing:1px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;font-size:14px;}
.footer-col ul li a{color:rgba(246,243,237,.7);}
.footer-col ul li a:hover{color:var(--orange);text-decoration:underline;}
.footer-contact li{color:rgba(255,255,255,.6);line-height:1.8;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media screen and (max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .nav-search{display:none;}
  .page-hero .hero-inner{grid-template-columns:1fr;gap:36px;padding:48px 0 56px;}
  .hero-visual img{aspect-ratio:16/9;}
  .hero-float{left:auto;right:16px;bottom:-16px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .steps-panel{grid-template-columns:1fr;padding:28px;}
  .strip{grid-template-columns:1fr;padding:30px;}
  .strip .strip-actions{justify-content:flex-start;}
  .cta-panel{grid-template-columns:1fr;}
  .cta-left,.cta-right{padding:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:56px 0;}
}
@media screen and (max-width:767px){
  .container{padding:0 18px;}
  .waterfall{grid-template-columns:1fr;gap:20px;}
  .filter-bar{margin-top:-24px;padding:14px;}
  .filter-right{width:100%;justify-content:space-between;}
  .form-grid{grid-template-columns:1fr;}
  .hero-stats div{padding:14px 16px;}
  .hero-stats strong{font-size:22px;}
  .cta-left,.cta-right{padding:24px;}
  .faq-q{padding:16px;font-size:15px;}
  .faq-a p{padding:0 16px 18px;}
}
@media screen and (max-width:519px){
  .brand-text{font-size:15px;}
  .page-hero h1{font-size:26px;}
  .hero-actions .btn{width:100%;}
  .hero-float{position:static;margin-top:16px;width:100%;}
  .wf-body{padding:18px;}
  .section{padding:48px 0;}
  .footer-grid{grid-template-columns:1fr;}
}

/* roulang page: category4 */
:root{
  --ink:#13544A;
  --ink-deep:#0C1F1D;
  --ink-soft:#1F7A69;
  --orange:#E4652B;
  --orange-dark:#C9531F;
  --mint:#3FD6B0;
  --paper:#F6F3ED;
  --card:#FFFFFF;
  --text:#1E2624;
  --muted:#5A6A66;
  --line:#E3DED5;
  --danger:#DC3B3B;
  --r-btn:10px;
  --r-card:14px;
  --r-lg:18px;
  --sh-1:0 1px 2px rgba(12,31,29,.06),0 8px 24px rgba(12,31,29,.06);
  --sh-2:0 14px 36px rgba(12,31,29,.12);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  background-image:radial-gradient(rgba(19,84,74,.045) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink-soft);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--orange);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:.01em;}
p{margin:0 0 1.15em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1200px;padding:0 32px;}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,243,237,.92);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 18px rgba(12,31,29,.06);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:var(--nav-h);transition:min-height .2s ease;
}
.site-header.is-scrolled .nav-inner{min-height:56px;}
.nav-left{display:flex;align-items:center;gap:28px;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,var(--ink) 0%,var(--ink-deep) 100%);
  color:#fff;font-size:17px;font-weight:700;letter-spacing:0;
  box-shadow:0 6px 14px rgba(12,31,29,.18);
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--muted);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--ink);background:rgba(19,84,74,.06);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:700;box-shadow:inset 2px 0 0 var(--ink);padding-left:14px;}
.nav-link.is-active::after{transform:scaleX(1);background:var(--ink);}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--muted);min-width:230px;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.nav-search input{border:none;background:transparent;outline:none;width:100%;font-size:14px;}
.nav-search input::placeholder{color:#98A6A2;}
.nav-search:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(19,84,74,.12);background:#fff;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink);font-size:16px;
}
.nav-toggle:hover{border-color:var(--ink);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(228,101,43,.24);}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(228,101,43,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:rgba(19,84,74,.08);color:var(--ink);transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);padding:6px 0;}
.btn-text i{transition:transform .18s ease;}
.btn-text:hover{color:var(--orange);}
.btn-text:hover i{transform:translateX(4px);}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0;}
.section-sm{padding:48px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:32px;}
.section-num{
  display:inline-block;font-family:var(--font-num);font-size:13px;font-weight:600;
  color:var(--orange);letter-spacing:.14em;margin-bottom:10px;
}
.section-title{
  position:relative;font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:600;
  padding-left:16px;margin-bottom:12px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;background:var(--ink);
}
.section-desc{font-size:15.5px;color:var(--muted);line-height:1.9;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(19,84,74,.09);color:var(--ink);
}
.badge-orange{background:rgba(228,101,43,.12);color:var(--orange-dark);}
.badge-mint{background:rgba(63,214,176,.18);color:#17715D;}
.badge-time{background:rgba(90,106,102,.1);color:var(--muted);}
.divider{height:1px;background:var(--line);border:none;margin:0;}

/* ---------- 面包屑 ---------- */
.crumbs{padding:20px 0 0;font-size:13px;color:var(--muted);}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--orange);}
.crumbs span.sep{margin:0 8px;color:#B9C2BE;}
.crumbs .current{color:var(--ink);font-weight:600;}

/* ---------- Hero ---------- */
.hero{padding:28px 0 56px;}
.hero-grid{display:grid;grid-template-columns:minmax(0,55fr) minmax(0,45fr);gap:48px;align-items:center;}
.hero-eyebrow{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);letter-spacing:.08em;margin-bottom:16px;}
.hero-eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(63,214,176,.18);}
.hero-title{
  font-size:clamp(30px,4.2vw,48px);line-height:1.18;font-weight:700;letter-spacing:.005em;
  margin-bottom:18px;
}
.hero-title .hl{
  background:linear-gradient(180deg,transparent 66%,rgba(63,214,176,.42) 66%);
  padding:0 2px;
}
.hero-sub{font-size:17px;color:var(--muted);line-height:1.85;max-width:520px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;border-top:1px solid var(--line);padding-top:22px;}
.hero-stats .num{font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--orange);line-height:1.2;}
.hero-stats .lbl{font-size:13px;color:var(--muted);line-height:1.6;}
.hero-visual{position:relative;}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  border:1px solid var(--line);aspect-ratio:4/3;background:#E7E2D8;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,31,29,0) 42%,rgba(12,31,29,.62) 100%);
}
.hero-card{
  position:absolute;left:-18px;bottom:22px;z-index:2;
  width:min(262px,80%);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px 18px;box-shadow:var(--sh-2);
}
.hero-card h4{font-size:15px;font-weight:600;margin-bottom:6px;}
.hero-card p{font-size:13px;color:var(--muted);line-height:1.7;margin:0;}
.hero-card .mini{display:flex;align-items:center;gap:8px;font-family:var(--font-num);font-size:12px;color:var(--orange-dark);margin-bottom:8px;}

/* ---------- 主列 + 侧栏 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;}
.main-col{min-width:0;}
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.panel h3{font-size:17px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.panel h3 i{color:var(--ink-soft);font-size:14px;}
.panel p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;}
.panel-dark{background:var(--ink-deep);border-color:rgba(255,255,255,.14);color:#fff;}
.panel-dark h3{color:#fff;}
.panel-dark p{color:rgba(255,255,255,.72);}
.panel-dark .num{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--mint);}

/* 导语块 */
.lead-box{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--ink);
  border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--sh-1);
  margin-bottom:28px;
}
.lead-box p{font-size:16px;color:var(--text);line-height:1.9;margin:0 0 14px;}
.lead-box p:last-child{margin-bottom:0;}
.anchor-row{display:flex;flex-wrap:wrap;gap:10px;}
.anchor-row a{
  display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line);background:var(--paper);
  font-size:13.5px;font-weight:600;color:var(--ink);
}
.anchor-row a:hover{background:rgba(19,84,74,.08);border-color:var(--ink);color:var(--ink);}

/* 要点卡 */
.point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.point-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6CFC2;}
.point-media{aspect-ratio:16/9;overflow:hidden;background:#E7E2D8;}
.point-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.point-card:hover .point-media img{transform:scale(1.04);}
.point-body{padding:20px 22px 22px;}
.point-body h3{font-size:19px;font-weight:600;margin-bottom:10px;line-height:1.4;transition:color .2s ease;}
.point-card:hover .point-body h3{color:var(--ink);}
.point-body p{font-size:14.5px;color:var(--muted);line-height:1.85;margin:0 0 12px;}
.point-meta{display:flex;flex-wrap:wrap;gap:8px;}

/* 适用场景 */
.scene-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.scene-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.scene-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.scene-item h3{font-size:17px;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:8px;}
.scene-item h3 i{color:var(--mint);font-size:13px;}
.scene-item p{font-size:14.5px;color:var(--muted);line-height:1.85;margin:0;}

/* 步骤 */
.steps{border-left:2px solid var(--line);padding-left:0;margin-left:6px;}
.step{position:relative;padding:0 0 26px 30px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:-7px;top:8px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:2px solid var(--line);
}
.step.is-current::before{background:var(--orange);border-color:var(--orange);box-shadow:0 0 0 5px rgba(228,101,43,.16);}
.step .step-no{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--orange);letter-spacing:.1em;}
.step h3{font-size:17.5px;font-weight:600;margin:4px 0 8px;}
.step p{font-size:14.5px;color:var(--muted);line-height:1.85;margin:0;}

/* 误区对照 */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.compare-col{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);}
.compare-col.warn{border-top:3px solid var(--danger);}
.compare-col.good{border-top:3px solid var(--ink-soft);}
.compare-col h3{font-size:16px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.compare-col.warn h3 i{color:var(--danger);}
.compare-col.good h3 i{color:var(--ink-soft);}
.compare-col li{
  position:relative;padding-left:16px;font-size:14.5px;color:var(--muted);line-height:1.8;margin-bottom:12px;
}
.compare-col li:last-child{margin-bottom:0;}
.compare-col li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--line);}
.compare-col.good li::before{background:var(--mint);}

/* 标签云 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud a{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:999px;
  background:var(--paper);border:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.tag-cloud a:hover{background:rgba(19,84,74,.09);border-color:rgba(19,84,74,.28);color:var(--ink);}

/* 侧栏推荐 */
.rec-list li{padding:14px 0;border-bottom:1px dashed var(--line);}
.rec-list li:first-child{padding-top:0;}
.rec-list li:last-child{border-bottom:none;padding-bottom:0;}
.rec-list a{font-size:15px;font-weight:600;color:var(--text);display:block;margin-bottom:6px;}
.rec-list a:hover{color:var(--orange);}
.rec-list .rec-meta{font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:10px;}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#D6CFC2;}
.faq-item.is-open{border-color:rgba(19,84,74,.35);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q i{color:var(--ink-soft);font-size:14px;transition:transform .2s ease;flex-shrink:0;}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--orange);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a .faq-a-inner{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.9;background:linear-gradient(180deg,rgba(246,243,237,0) 0%,rgba(246,243,237,.85) 100%);}
.faq-item.is-open .faq-a{max-height:400px;}

/* 侧栏 FAQ 小卡 */
.mini-faq{font-size:14px;color:var(--muted);line-height:1.8;}
.mini-faq strong{display:block;color:var(--text);font-size:14.5px;font-weight:600;margin-bottom:8px;}

/* 通栏 CTA */
.cta-band{
  background:var(--ink-deep);
  background-image:linear-gradient(120deg,rgba(19,84,74,.85) 0%,rgba(12,31,29,.94) 60%),
                   url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  border-radius:var(--r-lg);padding:44px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  color:#fff;box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.4vw,28px);line-height:1.35;margin-bottom:10px;font-weight:600;}
.cta-band p{color:rgba(255,255,255,.74);font-size:15px;margin:0;max-width:600px;line-height:1.85;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-outline{color:#fff;border-color:rgba(255,255,255,.5);}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.14);color:#fff;}

/* 表单 */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:500;color:var(--muted);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);background:#FCFBF8;box-shadow:0 0 0 3px rgba(19,84,74,.1);
}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);line-height:1.7;margin:4px 0 20px;}
.checkbox input{width:18px;height:18px;margin-top:2px;accent-color:var(--ink);}

/* 页脚 */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.68);margin-top:80px;padding:64px 0 26px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1fr;gap:40px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.14);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.site-footer .brand-mark{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);box-shadow:none;}
.site-footer .brand-text{color:#fff;font-size:17px;font-weight:700;}
.footer-about{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);margin:0;max-width:340px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;font-size:13.5px;line-height:1.7;}
.footer-col ul li a{color:rgba(255,255,255,.7);}
.footer-col ul li a:hover{color:var(--orange);text-decoration:underline;}
.footer-contact li{color:rgba(255,255,255,.6);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:12.5px;color:rgba(255,255,255,.48);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px;}
  .hero-grid{gap:36px;}
}
@media (max-width:1023px){
  .layout{grid-template-columns:minmax(0,1fr);}
  .side-col{position:static;top:auto;flex-direction:row;flex-wrap:wrap;}
  .side-col .panel{flex:1 1 calc(50% - 10px);min-width:260px;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .hero-visual{order:-1;}
  .hero-card{left:16px;bottom:16px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:60px 0;}
}
@media (max-width:860px){
  .main-nav{
    display:none;position:fixed;left:0;right:0;top:56px;z-index:90;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:8px 16px 18px;box-shadow:0 18px 30px rgba(12,31,29,.12);
  }
  body.nav-open .main-nav{display:flex;}
  .nav-link{font-size:16px;line-height:48px;padding:0 12px;border-radius:8px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{box-shadow:inset 2px 0 0 var(--ink);}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .main-nav .drawer-cta{margin-top:12px;padding:12px 12px 0;border-top:1px solid var(--line);}
  .main-nav .drawer-cta .btn{width:100%;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .point-grid{grid-template-columns:minmax(0,1fr);}
  .scene-list{grid-template-columns:minmax(0,1fr);}
  .compare{grid-template-columns:minmax(0,1fr);}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .form-row{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:32px 24px;}
  .side-col .panel{flex:1 1 100%;}
}
@media (max-width:520px){
  .section{padding:48px 0;}
  .hero{padding:16px 0 44px;}
  .hero-title{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .brand-text{font-size:16px;}
  .lead-box{padding:20px;}
  .faq-q{padding:16px 16px;font-size:15px;}
  .faq-a .faq-a-inner{padding:0 16px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{width:100%;}
}