/* roulang page: index */
:root{
  --green-900:#0A2A21;
  --green-800:#0F3D30;
  --green-700:#17614A;
  --green-500:#2E8E6C;
  --amber:#D9A441;
  --red:#C2452F;
  --bg:#F5F1E8;
  --band:#EFEAE0;
  --surface:#FFFFFF;
  --text:#15201B;
  --text-2:#5B6A62;
  --text-3:#8A968F;
  --reverse:#F4F1EA;
  --border:#E4DDD0;
  --border-dark:rgba(255,255,255,.14);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(16,35,28,.06);
  --sh2:0 8px 24px -12px rgba(16,35,28,.18);
  --sh3:0 18px 40px -20px rgba(16,35,28,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",Inter,Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .18s ease}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.01em}
p{margin:0}
::selection{background:rgba(46,142,108,.24)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--band{background:var(--band)}
.section--tight{padding:56px 0}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:10px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.btn--primary{background:var(--green-700);color:var(--reverse);box-shadow:var(--sh1)}
.btn--primary:hover{background:var(--green-500);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh1)}
.btn--ghost{background:var(--surface);color:var(--green-700);border-color:var(--green-700)}
.btn--ghost:hover{background:#EAF3EE;transform:translateY(-1px)}
.btn--light{background:var(--surface);color:var(--green-800);box-shadow:var(--sh2)}
.btn--light:hover{background:#F4F1EA;transform:translateY(-1px)}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:8px}
.btn--lg{height:52px;padding:0 28px;font-size:16px}
.btn--text{height:auto;padding:0;color:var(--green-700);font-weight:600}
.btn--text .arrow{transition:transform .18s ease;display:inline-block}
.btn--text:hover .arrow{transform:translateX(3px)}
.btn:focus-visible,a:focus-visible,summary:focus-visible,label:focus-visible{outline:2px solid var(--green-500);outline-offset:2px;border-radius:6px}
.btn[disabled]{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,241,232,.92);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-scrolled{background:#F7F4EC;box-shadow:var(--sh2)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:baseline;gap:10px;flex:0 0 auto}
.brand__mark{font-size:20px;font-weight:800;color:var(--green-800);letter-spacing:.02em}
.brand__sub{font-size:11px;font-weight:600;letter-spacing:.18em;color:var(--text-3);white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center}
.nav-link{
  position:relative;padding:10px 12px;font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:8px;transition:color .18s ease,background-color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--green-700);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--green-700);background:rgba(23,97,74,.06)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--green-800);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-mega{position:relative}
.nav-mega__trigger{
  display:inline-flex;align-items:center;gap:6px;padding:10px 12px;font-size:15px;font-weight:500;
  color:var(--text-2);border-radius:8px;transition:color .18s ease,background-color .18s ease;
}
.nav-mega__trigger:hover{color:var(--green-700);background:rgba(23,97,74,.06)}
.nav-mega__trigger svg{transition:transform .2s ease}
.mega-panel{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translate(-50%,4px);
  width:640px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);
  box-shadow:var(--sh3);padding:22px;display:grid;grid-template-columns:1.1fr 1fr 1.1fr;gap:22px;
  opacity:0;visibility:hidden;pointer-events:none;transition:opacity .12s ease,transform .12s ease,visibility .12s;
}
.nav-mega:hover .mega-panel,
.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.nav-mega:hover .nav-mega__trigger svg,
.nav-mega:focus-within .nav-mega__trigger svg{transform:rotate(180deg)}
.mega-col h4{font-size:12px;letter-spacing:.1em;color:var(--text-3);font-weight:700;margin-bottom:12px}
.mega-col a{display:block;padding:7px 0;font-size:14px;color:var(--text-2)}
.mega-col a:hover{color:var(--green-700);text-decoration:underline;text-underline-offset:3px}
.mega-card{background:var(--band);border:1px solid var(--border);border-radius:var(--r-sm);padding:12px}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:6px;background:var(--border)}
.mega-card p{font-size:13px;color:var(--text-2);margin:10px 0 12px;line-height:1.6}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-mobile{display:none;position:relative}
.nav-mobile summary{
  list-style:none;width:42px;height:42px;border:1px solid var(--border);border-radius:10px;
  background:var(--surface);display:flex;align-items:center;justify-content:center;cursor:pointer;
}
.nav-mobile summary::-webkit-details-marker{display:none}
.nav-mobile summary span{position:relative;width:16px;height:2px;background:var(--green-800);border-radius:2px;display:block}
.nav-mobile summary span::before,.nav-mobile summary span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--green-800);border-radius:2px;
}
.nav-mobile summary span::before{top:-5px}
.nav-mobile summary span::after{top:5px}
.nav-mobile[open] summary{border-color:var(--green-700)}
.nav-mobile__panel{
  position:absolute;right:0;top:calc(100% + 10px);width:280px;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--r-md);box-shadow:var(--sh3);padding:14px;
}
.nav-mobile__panel a{display:block;padding:11px 10px;border-radius:8px;font-size:15px;color:var(--text-2)}
.nav-mobile__panel a:hover{background:var(--band);color:var(--green-700)}
.nav-mobile__panel a.is-active{color:var(--green-800);font-weight:700;background:rgba(23,97,74,.07)}
.nav-mobile__panel .btn{width:100%;margin-top:10px}

/* ============ 首屏 ============ */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--border);background:var(--bg)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(45deg,rgba(23,97,74,.045) 0 2px,transparent 2px 16px),
    repeating-linear-gradient(-45deg,rgba(23,97,74,.045) 0 2px,transparent 2px 16px);
}
.hero__inner{position:relative;display:grid;grid-template-columns:5fr 6fr;gap:48px;align-items:center;padding:72px 20px}
.eyebrow{
  display:inline-block;padding:3px 12px;margin-bottom:16px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.08em;color:#8A6A1F;
  background:rgba(217,164,65,.16);border:1px solid rgba(217,164,65,.42);
}
.hero h1{font-size:clamp(28px,4vw,42px);line-height:1.28;color:var(--green-800)}
.hero__lead{margin-top:18px;font-size:17px;color:var(--text-2);max-width:520px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero__badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;color:var(--green-700);
  background:rgba(46,142,108,.1);border:1px solid rgba(46,142,108,.28);
}
.hero__visual{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border);
  box-shadow:var(--sh3);background:var(--band);
}
.hero__visual img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ============ 板块标题 ============ */
.section-head{max-width:780px;margin-bottom:34px}
.section-head h2{position:relative;padding-left:15px;font-size:clamp(22px,2.6vw,30px);color:var(--green-800)}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.22em;width:3px;height:20px;border-radius:2px;background:var(--green-700);
}
.section-head p{margin-top:12px;font-size:14px;color:var(--text-2)}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}

/* ============ 平台快选 ============ */
.platform-picker{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pf-card{
  display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh1);cursor:pointer;
  transition:transform .2s ease-out,border-color .2s ease,box-shadow .2s ease;
}
.pf-card:hover{transform:translateY(-3px);border-color:rgba(23,97,74,.4);box-shadow:var(--sh2)}
.pf-card__icon{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(46,142,108,.12);border:1px solid rgba(46,142,108,.3);color:var(--green-700);margin-bottom:14px;
}
.pf-card h3{font-size:17px;color:var(--green-800)}
.pf-card p{margin-top:8px;font-size:13px;color:var(--text-2);line-height:1.7}
.pf-card .pf-meta{display:inline-block;margin-top:12px;font-size:12px;color:var(--text-3)}
input[type="radio"].pf-radio{position:absolute;opacity:0;pointer-events:none}
input[type="radio"].pf-radio:checked + .pf-card{
  border-color:var(--green-700);box-shadow:0 0 0 2px rgba(23,97,74,.18),var(--sh2);transform:translateY(-3px);
}
input[type="radio"].pf-radio:checked + .pf-card .pf-card__icon{background:var(--green-700);color:var(--reverse);border-color:var(--green-700)}

/* ============ 卡片通用 ============ */
.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);
  box-shadow:var(--sh1);overflow:hidden;
  transition:transform .2s ease-out,border-color .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(23,97,74,.4);box-shadow:var(--sh2)}
.card__media{aspect-ratio:16/10;overflow:hidden;background:var(--band)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.card:hover .card__media img{transform:scale(1.03)}
.card__body{padding:20px}
.card__body h3{font-size:18px;color:var(--green-800)}
.card__body p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75}
.card__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 20px 20px}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;
  color:var(--green-700);background:rgba(46,142,108,.1);border:1px solid rgba(46,142,108,.26);
}
.tag--amber{color:#8A6A1F;background:rgba(217,164,65,.16);border-color:rgba(217,164,65,.42)}
.tag--red{color:#8E3222;background:rgba(194,69,47,.1);border-color:rgba(194,69,47,.32)}
.badge-corner{
  position:absolute;top:14px;left:14px;padding:4px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;color:#fff;background:var(--red);box-shadow:var(--sh1);
}

/* ============ 爆款网格 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;align-items:stretch}
.feature-card{grid-column:span 3;display:flex;flex-direction:column;position:relative}
.feature-card--lg{grid-column:span 6;grid-row:span 2}
.feature-card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--band)}
.feature-card--lg .feature-card__media{aspect-ratio:16/9}
.feature-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.feature-card:hover .feature-card__media img{transform:scale(1.03)}
.feature-card__body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto}
.feature-card__body h3{font-size:17px;color:var(--green-800)}
.feature-card--lg .feature-card__body h3{font-size:24px}
.feature-card__body p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75}
.feature-card__body .btn{margin-top:auto}

/* ============ 最新信息 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-md);box-shadow:var(--sh1);overflow:hidden;
  transition:transform .2s ease-out,border-color .2s ease,box-shadow .2s ease;
}
.post-card:hover{transform:translateY(-3px);border-color:rgba(23,97,74,.4);box-shadow:var(--sh2)}
.post-card__media{aspect-ratio:16/10;overflow:hidden;background:var(--band)}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.post-card:hover .post-card__media img{transform:scale(1.03)}
.post-card__body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto}
.post-card__title{font-size:17px;color:var(--green-800);line-height:1.5}
.post-card__title a:hover{text-decoration:underline;text-underline-offset:3px;color:var(--green-700)}
.post-card__excerpt{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__meta{display:flex;align-items:center;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--border);font-size:11px;color:var(--text-3)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 20px;border:1px dashed var(--border);
  border-radius:var(--r-md);background:var(--surface);
}
.empty-state svg{margin:0 auto 14px;color:var(--green-500)}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:16px}

/* ============ 评价轮播 ============ */
.reviews-wrap{position:relative}
.reviews-track{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(280px,320px);gap:20px;
  overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 18px;scrollbar-width:thin;
}
.reviews-track::-webkit-scrollbar{height:6px}
.reviews-track::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
.review-card{
  scroll-snap-align:start;position:relative;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-md);box-shadow:var(--sh1);padding:22px;overflow:hidden;
}
.review-card::before{
  content:"\201C";position:absolute;top:6px;right:16px;font-size:64px;line-height:1;
  color:rgba(23,97,74,.08);font-family:Georgia,serif;
}
.review-stars{display:flex;gap:3px;color:var(--amber);margin-bottom:12px}
.review-card p{font-size:14px;color:var(--text-2);line-height:1.8;min-height:76px}
.review-user{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--border)}
.review-avatar{
  width:40px;height:40px;border-radius:50%;background:rgba(46,142,108,.14);
  border:1px solid rgba(46,142,108,.3);display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--green-700);flex:0 0 auto;
}
.review-user strong{display:block;font-size:14px;color:var(--text)}
.review-user span{font-size:12px;color:var(--text-3)}
.carousel-actions{display:flex;gap:10px}
.carousel-btn{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--border);background:var(--surface);
  display:flex;align-items:center;justify-content:center;color:var(--green-700);box-shadow:var(--sh1);
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.carousel-btn:hover{background:#EAF3EE;transform:translateY(-1px);box-shadow:var(--sh2)}

/* ============ 保障条 ============ */
.assure{background:var(--green-900);color:var(--reverse);padding:34px 0}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.assure-item{display:flex;align-items:center;gap:14px}
.assure-icon{
  width:44px;height:44px;border-radius:12px;flex:0 0 auto;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--border-dark);color:#8FD3BA;background:rgba(255,255,255,.05);
}
.assure-item strong{display:block;font-size:15px;color:#FFFFFF}
.assure-item span{font-size:13px;color:rgba(244,241,234,.72)}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--green-900);border:1px solid var(--border-dark);
  border-radius:var(--r-lg);padding:56px 40px;text-align:center;color:var(--reverse);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(45deg,rgba(255,255,255,.035) 0 2px,transparent 2px 18px),
    repeating-linear-gradient(-45deg,rgba(255,255,255,.035) 0 2px,transparent 2px 18px);
}
.cta-band__inner{position:relative;max-width:640px;margin:0 auto}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);color:#FFFFFF}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(244,241,234,.78)}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px}
.cta-link{font-size:14px;color:#8FD3BA;font-weight:600;display:inline-flex;align-items:center;gap:8px;margin-top:22px}
.cta-link:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:3px}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);box-shadow:var(--sh1);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--green-800);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-plus{
  width:22px;height:22px;flex:0 0 auto;position:relative;transition:transform .18s ease;
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--green-700);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-plus::before{width:12px;height:2px}
.faq-plus::after{width:2px;height:12px}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-body{
  padding:16px 22px 20px;font-size:14px;line-height:1.8;color:var(--text-2);
  background:#FAF8F3;border-top:1px solid var(--border);
}

/* ============ 页脚 ============ */
.site-footer{background:var(--green-900);color:rgba(244,241,234,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand__mark{color:#FFFFFF}
.footer-brand .brand__sub{color:rgba(244,241,234,.55);display:block;margin-top:8px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:#FFFFFF;margin-bottom:16px;letter-spacing:.04em}
.footer-col a{display:block;font-size:14px;padding:6px 0;color:rgba(244,241,234,.72)}
.footer-col a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:3px}
.footer-col address{font-style:normal;font-size:14px;line-height:1.9}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:13px;
}
.footer-bottom span{color:rgba(244,241,234,.6)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .mega-panel{width:560px;grid-template-columns:1fr 1fr;}
  .mega-col--card{display:none}
}
@media (max-width:1023px){
  .nav-desktop{display:none}
  .nav-mobile{display:block}
  .header-actions .btn--primary{display:none}
  .header-inner{justify-content:space-between}
  .hero__inner{grid-template-columns:1fr;gap:34px;padding:52px 20px}
  .hero__visual{order:-1}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .feature-card,.feature-card--lg{grid-column:span 1;grid-row:auto}
  .platform-picker{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .assure-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:56px 0}
}
@media (max-width:767px){
  body{font-size:15px}
  .section{padding:44px 0}
  .hero__inner{padding:44px 20px}
  .hero h1{font-size:clamp(26px,7vw,32px)}
  .hero__lead{font-size:16px}
  .feature-grid,.post-grid,.grid--2,.grid--3,.grid--4,.platform-picker{grid-template-columns:1fr}
  .assure-grid{grid-template-columns:1fr;gap:16px}
  .section-head--row{flex-direction:column;align-items:flex-start}
  .cta-band{padding:40px 22px}
  .reviews-track{grid-auto-columns:minmax(260px,86%)}
  .footer-grid{grid-template-columns:1fr;gap:8px}
  .footer-col{border-top:1px solid rgba(255,255,255,.12);padding-top:16px;margin-top:8px}
  .footer-brand{border-top:0;padding-top:0;margin-top:0}
}
@media (max-width:479px){
  .hero__actions .btn,.cta-band__actions .btn{width:100%}
  .hero__badges{gap:8px}
  .btn{height:44px;padding:0 18px}
}

/* roulang page: article */
:root{
  --felt-900:#0F3D30;
  --felt-700:#17614A;
  --felt-500:#2E8E6C;
  --felt-050:#EAF3EE;
  --amber:#D9A441;
  --red:#C2452F;
  --bg:#F5F1E8;
  --surface:#FFFFFF;
  --band:#EFEAE0;
  --deep:#0A2A21;
  --ink:#15201B;
  --ink-2:#5B6A62;
  --ink-3:#8A968F;
  --line:#E4DDD0;
  --line-dark:rgba(255,255,255,.14);
  --on-deep:#F4F1EA;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,35,28,.06);
  --sh-2:0 8px 24px -12px rgba(16,35,28,.18);
  --sh-3:0 18px 40px -20px rgba(16,35,28,.28);
  --wrap:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,Inter,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--felt-700);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--felt-500);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;}
address{font-style:normal;}

.container{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 20px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:10px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--felt-700);color:#fff;box-shadow:var(--sh-1);}
.btn--primary:hover{background:var(--felt-500);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn--ghost{background:var(--surface);color:var(--felt-700);border-color:var(--felt-700);}
.btn--ghost:hover{background:var(--felt-050);color:var(--felt-700);border-color:var(--felt-500);}
.btn--light{background:#fff;color:var(--deep);}
.btn--light:hover{background:var(--felt-050);color:var(--deep);}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn--block{width:100%;}
.btn:focus-visible,a:focus-visible,summary:focus-visible,button:focus-visible{
  outline:2px solid var(--felt-500);
  outline-offset:2px;
  border-radius:8px;
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  font-size:14px;
  color:var(--felt-700);
}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 标签 / 徽章 ---------- */
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  line-height:1.6;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
}
.chip--felt{background:var(--felt-050);border-color:rgba(23,97,74,.28);color:var(--felt-700);font-weight:600;}
.chip--amber{background:#FBF3E1;border-color:rgba(217,164,65,.45);color:#8A6413;font-weight:600;}
.chip--red{background:#FBEAE6;border-color:rgba(194,69,47,.4);color:var(--red);font-weight:600;}
.chip--plain{background:transparent;border-color:var(--line);color:var(--ink-2);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#F5F1E8;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);background:#F7F4EC;}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:68px;
}
.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.15;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand__mark{font-size:18px;font-weight:800;letter-spacing:.5px;}
.brand__sub{font-size:11px;letter-spacing:2px;color:var(--ink-3);margin-top:2px;}

.nav-desktop{display:flex;align-items:center;gap:22px;margin-left:auto;}
.nav-link{
  position:relative;
  font-size:14px;
  font-weight:500;
  color:var(--ink-2);
  padding:6px 2px;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--felt-700);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--felt-700);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--felt-700);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}

.nav-mega{position:relative;}
.nav-mega__trigger{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:34px;
  padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:#fff;
  font-size:14px;
  font-weight:600;
  color:var(--ink-2);
  cursor:pointer;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.nav-mega__trigger:hover{color:var(--felt-700);border-color:rgba(23,97,74,.4);background:var(--felt-050);}
.mega-panel{
  position:absolute;
  top:calc(100% + 10px);
  left:50%;
  transform:translate(-50%,4px);
  width:680px;
  display:grid;
  grid-template-columns:1fr 1fr 1.1fr;
  gap:20px;
  padding:22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-3);
  opacity:0;
  visibility:hidden;
  transition:opacity .12s ease,transform .12s ease,visibility .12s;
}
.nav-mega:hover .mega-panel,
.nav-mega:focus-within .mega-panel{
  opacity:1;
  visibility:visible;
  transform:translate(-50%,0);
}
.mega-col h4{font-size:13px;letter-spacing:1px;color:var(--ink-3);margin-bottom:12px;font-weight:700;}
.mega-col a{
  display:block;
  font-size:14px;
  color:var(--ink-2);
  padding:6px 0;
}
.mega-col a:hover{color:var(--felt-700);}
.mega-card{
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:14px;
  background:#FBF9F4;
}
.mega-card img{
  width:100%;
  height:96px;
  object-fit:cover;
  border-radius:6px;
  margin-bottom:10px;
}
.mega-card p{font-size:13px;color:var(--ink-2);line-height:1.7;margin-bottom:10px;}

.header-actions{display:flex;align-items:center;gap:10px;}
.mobile-nav{display:none;position:relative;margin-left:auto;}
.mobile-nav summary{
  list-style:none;
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
}
.mobile-nav summary::-webkit-details-marker{display:none;}
.mobile-nav[open] summary{border-color:var(--felt-700);color:var(--felt-700);}
.mobile-panel{
  position:absolute;
  right:0;
  top:calc(100% + 10px);
  width:min(320px,86vw);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-3);
  padding:14px;
}
.mobile-panel__group{padding:8px 6px 12px;border-bottom:1px solid var(--line);}
.mobile-panel__group:last-child{border-bottom:0;padding-bottom:4px;}
.mobile-panel__group h4{font-size:12px;letter-spacing:1px;color:var(--ink-3);margin-bottom:8px;}
.mobile-panel a{display:block;padding:9px 4px;font-size:15px;color:var(--ink-2);}
.mobile-panel a:hover{color:var(--felt-700);}
.mobile-panel .btn{margin-top:10px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--band);border-bottom:1px solid var(--line);}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--ink-3);
  padding:14px 0;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--felt-700);}
.breadcrumb .sep{color:var(--ink-3);}
.breadcrumb .current{
  color:var(--ink);
  max-width:52ch;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------- 文章头部 ---------- */
.article-hero{
  background:
    radial-gradient(1200px 320px at 12% -30%,rgba(46,142,108,.14),transparent 70%),
    repeating-linear-gradient(45deg,rgba(23,97,74,.04) 0 2px,transparent 2px 14px),
    var(--bg);
  padding:56px 0 40px;
  border-bottom:1px solid var(--line);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:1px;
  color:#8A6413;
  background:#FBF3E1;
  border:1px solid rgba(217,164,65,.45);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:16px;
}
.article-title{
  font-size:clamp(28px,4vw,42px);
  line-height:1.28;
  max-width:22ch;
  margin-bottom:14px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 16px;
  font-size:14px;
  color:var(--ink-3);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--amber);display:inline-block;}

/* ---------- 正文 ---------- */
.article-main{padding:52px 0 40px;}
.article-shell{
  display:grid;
  grid-template-columns:minmax(0,760px);
  justify-content:center;
  gap:32px;
}
.article-body{
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
}
.article-body p{margin:0 0 1em;}
.article-body h2{
  position:relative;
  font-size:clamp(22px,2.6vw,30px);
  padding-left:14px;
  margin:52px 0 16px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;
  width:3px;height:20px;
  border-radius:2px;
  background:var(--felt-700);
}
.article-body h3{font-size:19px;margin:36px 0 12px;color:var(--felt-900);}
.article-body h4{font-size:16px;margin:26px 0 10px;color:var(--felt-900);}
.article-body > h2:first-child,
.article-body > h3:first-child,
.article-body > p:first-child{margin-top:0;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.2em;}
.article-body ul li{list-style:none;position:relative;padding-left:16px;margin-bottom:8px;}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--felt-500);
}
.article-body ol{counter-reset:item;list-style:none;padding-left:0;}
.article-body ol li{position:relative;padding-left:34px;margin-bottom:10px;counter-increment:item;}
.article-body ol li::before{
  content:counter(item);
  position:absolute;
  left:0;top:.28em;
  width:22px;height:22px;
  border-radius:50%;
  background:var(--felt-050);
  border:1px solid rgba(23,97,74,.3);
  color:var(--felt-700);
  font-size:12px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
}
.article-body blockquote{
  margin:24px 0;
  padding:16px 20px;
  background:#FAF8F3;
  border-left:3px solid var(--felt-700);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;
  border-radius:12px;
  margin:22px 0 10px;
  border:1px solid var(--line);
}
.article-body figure{margin:22px 0;}
.article-body figcaption,
.article-body .caption{
  font-size:13px;
  color:var(--ink-3);
  text-align:center;
}
.article-body a{color:var(--felt-700);font-weight:600;border-bottom:1px solid rgba(23,97,74,.3);}
.article-body a:hover{color:var(--felt-500);border-bottom-color:rgba(46,142,108,.6);}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;
  background:#F1EEE6;
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
}
.article-body pre{
  background:#F1EEE6;
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px 18px;
  overflow-x:auto;
  margin:20px 0;
  font-size:14px;
  line-height:1.7;
}
.article-body pre code{background:none;border:0;padding:0;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:22px 0;
  font-size:14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
}
.article-body th,.article-body td{
  padding:11px 14px;
  border-bottom:1px solid var(--line);
  text-align:left;
  vertical-align:top;
}
.article-body th{background:var(--band);font-weight:700;color:var(--felt-900);}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

.empty-state{
  background:#fff;
  border:1px dashed var(--line);
  border-radius:var(--r-md);
  padding:44px 28px;
  text-align:center;
  box-shadow:var(--sh-1);
}
.empty-state h2{padding-left:0;margin:0 0 12px;font-size:22px;}
.empty-state h2::before{display:none;}
.empty-state p{color:var(--ink-2);max-width:52ch;margin:0 auto 20px;}

/* ---------- 标签与文末 ---------- */
.article-foot{
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.tag-row .chip{cursor:pointer;}
.tag-row .chip:hover{border-color:rgba(23,97,74,.4);color:var(--felt-700);}
.foot-links{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:18px 20px;
  background:var(--band);
  border:1px solid var(--line);
  border-radius:var(--r-md);
}
.foot-links .group{display:flex;flex-wrap:wrap;gap:18px;align-items:center;}
.foot-links a{font-size:14px;font-weight:600;}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--ink-3);
}
.to-top:hover{color:var(--felt-700);}

/* ---------- 相关推荐 ---------- */
.section{padding:72px 0;}
.section--band{background:var(--band);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:34px;max-width:720px;}
.section-head .tag{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:1px;
  color:#8A6413;
  background:#FBF3E1;
  border:1px solid rgba(217,164,65,.45);
  border-radius:var(--r-pill);
  padding:4px 12px;
  margin-bottom:14px;
}
.section-head h2{
  position:relative;
  padding-left:14px;
  font-size:clamp(22px,2.6vw,30px);
  margin-bottom:10px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;
  width:3px;height:20px;
  border-radius:2px;
  background:var(--felt-700);
}
.section-head p{font-size:14px;color:var(--ink-2);}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(23,97,74,.4);
  box-shadow:var(--sh-2);
}
.card__media{position:relative;overflow:hidden;background:var(--band);}
.card__media img{width:100%;height:170px;object-fit:cover;transition:transform .2s ease-out;}
.card:hover .card__media img{transform:scale(1.03);}
.card__badge{
  position:absolute;
  left:12px;top:12px;
  font-size:12px;
  font-weight:700;
  padding:3px 10px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid rgba(23,97,74,.3);
  color:var(--felt-700);
}
.card__badge--hot{background:#FBEAE6;border-color:rgba(194,69,47,.4);color:var(--red);}
.card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card__body h3{font-size:18px;}
.card__body h3 a{color:var(--ink);}
.card__body h3 a:hover{color:var(--felt-700);}
.card__body p{font-size:14px;color:var(--ink-2);line-height:1.75;}
.card__meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--ink-3);
  padding-top:8px;
}

/* ---------- 深色 CTA ---------- */
.cta-band{
  background:
    repeating-linear-gradient(45deg,rgba(255,255,255,.035) 0 2px,transparent 2px 16px),
    var(--deep);
  border-radius:var(--r-lg);
  padding:48px 40px;
  text-align:center;
  color:var(--on-deep);
  border:1px solid var(--line-dark);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;padding:0;}
.cta-band h2::before{display:none;}
.cta-band p{color:rgba(244,241,234,.78);max-width:56ch;margin:0 auto 24px;font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;align-items:center;}
.cta-band .link-arrow{color:rgba(244,241,234,.9);}
.cta-band .link-arrow:hover{color:#fff;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;}
.faq{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:16px;
  font-weight:700;
  cursor:pointer;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary .plus{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  transition:transform .18s ease;
}
.faq summary .plus::before,
.faq summary .plus::after{
  content:"";
  position:absolute;
  background:var(--felt-700);
  border-radius:2px;
}
.faq summary .plus::before{left:0;top:10px;width:22px;height:2px;}
.faq summary .plus::after{left:10px;top:0;width:2px;height:22px;transition:opacity .18s ease;}
.faq[open] summary .plus{transform:rotate(45deg);}
.faq .faq__body{padding:0 22px 20px;font-size:14px;line-height:1.8;color:var(--ink-2);background:#FAF8F3;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:var(--on-deep);padding:64px 0 0;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand .brand__mark{font-size:18px;font-weight:800;color:#fff;display:block;}
.footer-brand .brand__sub{font-size:11px;letter-spacing:2px;color:rgba(244,241,234,.6);display:block;margin-top:4px;}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:rgba(244,241,234,.72);
  max-width:36ch;
}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;font-weight:700;}
.footer-col a{
  display:block;
  font-size:14px;
  color:rgba(244,241,234,.72);
  padding:5px 0;
  transition:color .18s ease,padding-left .18s ease;
}
.footer-col a:hover{color:#fff;padding-left:3px;text-decoration:underline;text-underline-offset:3px;}
.footer-col address{font-size:14px;line-height:1.9;color:rgba(244,241,234,.72);}
.footer-bottom{
  margin-top:44px;
  padding:18px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(244,241,234,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .mega-panel{width:600px;grid-template-columns:1fr 1fr 1fr;}
}
@media (max-width:1023px){
  .nav-desktop{display:none;}
  .header-actions{display:none;}
  .mobile-nav{display:block;}
  .mega-col--card{display:none;}
  .section{padding:52px 0;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .article-hero{padding:40px 0 32px;}
  .article-title{max-width:none;}
  .breadcrumb .current{max-width:32ch;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .section{padding:44px 0;}
  .article-main{padding:36px 0 24px;}
  .article-body{font-size:15px;}
  .article-body h2{margin-top:38px;}
  .card-grid{grid-template-columns:1fr;}
  .cta-band{padding:34px 22px;border-radius:var(--r-md);}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .foot-links{flex-direction:column;align-items:flex-start;}
  .site-footer{padding-top:48px;margin-top:52px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .btn{width:100%;}
  .header-inner .btn{width:auto;}
  .footer-grid{grid-template-columns:1fr;}
  .article-meta{font-size:13px;gap:8px 12px;}
  .breadcrumb{font-size:13px;}
  .breadcrumb .current{max-width:22ch;}
}

/* roulang page: category1 */
:root{
  --green-900:#0A2A21;
  --green-800:#0F3D30;
  --green-700:#17614A;
  --green-500:#2E8E6C;
  --green-soft:#EAF3EE;
  --amber:#D9A441;
  --amber-soft:#FBF3E2;
  --red:#C2452F;
  --red-soft:#FBEEEB;
  --bg:#F5F1E8;
  --surface:#FFFFFF;
  --band:#EFEAE0;
  --band-soft:#FAF8F3;
  --ink:#15201B;
  --ink-2:#5B6A62;
  --ink-3:#8A968F;
  --inv:#F4F1EA;
  --line:#E4DDD0;
  --line-dark:rgba(255,255,255,.14);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,35,28,.06);
  --sh-2:0 8px 24px -12px rgba(16,35,28,.18);
  --sh-3:0 18px 40px -20px rgba(16,35,28,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Inter","PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:var(--green-700);text-decoration:none}
a:hover{color:var(--green-500)}
button{font:inherit;color:inherit}
h1,h2,h3,h4{line-height:1.28;margin:0;font-weight:700;letter-spacing:.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
address{font-style:normal}
:focus-visible{outline:2px solid var(--green-700);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--band{background:var(--band)}
.section--soft{background:var(--band-soft)}
.section--tight{padding:56px 0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,241,232,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;flex-direction:column;justify-content:center;gap:2px;flex:0 0 auto}
.brand__mark{font-size:19px;font-weight:800;color:var(--green-800);letter-spacing:.02em;line-height:1.1}
.brand__sub{font-size:11px;letter-spacing:.2em;color:var(--ink-3);line-height:1.2}
.nav-desktop{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:9px 12px;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;color:var(--ink-2);transition:color .18s,background-color .18s;
}
.nav-link:hover{color:var(--green-700);background:var(--green-soft)}
.nav-link.is-active{color:var(--green-700);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;background:var(--green-700);
}
.nav-mega{position:relative;margin-left:4px}
.nav-mega__trigger{
  display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border-radius:var(--r-sm);
  background:transparent;border:1px solid transparent;font-size:15px;font-weight:500;color:var(--ink-2);
  cursor:pointer;transition:color .18s,background-color .18s,border-color .18s;
}
.nav-mega__trigger:hover{color:var(--green-700);background:var(--green-soft)}
.nav-mega__trigger svg{transition:transform .18s}
.nav-mega:hover .nav-mega__trigger svg,.nav-mega:focus-within .nav-mega__trigger svg{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 10px);right:0;
  width:min(700px,86vw);
  display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px;
  padding:22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(4px);
  transition:opacity .12s ease,transform .12s ease,visibility .12s;
}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;letter-spacing:.08em;color:var(--ink-3);margin-bottom:10px;font-weight:700}
.mega-col a{display:block;font-size:14px;color:var(--ink-2);padding:6px 0;transition:color .16s,transform .16s}
.mega-col a:hover{color:var(--green-700);transform:translateX(3px)}
.mega-card{background:var(--band-soft);border:1px solid var(--line);border-radius:var(--r-sm);padding:14px}
.mega-card img{width:100%;height:96px;object-fit:cover;border-radius:var(--r-sm);margin-bottom:10px}
.mega-card p{font-size:13px;line-height:1.65;color:var(--ink-2);margin-bottom:12px}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-mobile{display:none;position:relative;margin-left:auto}
.nav-mobile summary{
  list-style:none;cursor:pointer;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-mobile summary::-webkit-details-marker{display:none}
.nav-mobile summary span{display:block;width:16px;height:2px;border-radius:2px;background:var(--green-800)}
.nav-mobile[open] summary{border-color:var(--green-500);background:var(--green-soft)}
.nav-mobile__panel{
  position:fixed;left:0;right:0;top:68px;
  background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--sh-2);
  padding:14px 20px 20px;max-height:calc(100vh - 68px);overflow-y:auto;
}
.nav-mobile__panel a{
  display:block;padding:12px 4px;font-size:15px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.nav-mobile__panel a:last-child{border-bottom:0}
.nav-mobile__panel a.is-active{color:var(--green-700);font-weight:700}
.nav-mobile__group{margin-top:14px;font-size:12px;letter-spacing:.1em;color:var(--ink-3);font-weight:700}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:10px;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s,color .2s,transform .2s,box-shadow .2s,border-color .2s;
}
.btn--primary{background:var(--green-700);color:#fff;box-shadow:var(--sh-1)}
.btn--primary:hover{background:#1B6E54;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn--ghost{background:var(--surface);color:var(--green-700);border-color:rgba(23,97,74,.35)}
.btn--ghost:hover{background:var(--green-soft);color:var(--green-700)}
.btn--light{background:#fff;color:var(--green-800);box-shadow:var(--sh-2)}
.btn--light:hover{background:#F4F1EA;color:var(--green-800);transform:translateY(-1px)}
.btn--outline-light{background:transparent;color:var(--inv);border-color:rgba(255,255,255,.42)}
.btn--outline-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:8px}
.btn--link{
  display:inline-flex;align-items:center;gap:6px;height:auto;padding:0;
  background:none;border:0;color:var(--green-700);font-size:14px;font-weight:600;
}
.btn--link svg{transition:transform .18s}
.btn--link:hover svg{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:var(--inv);
  padding:60px 0 56px;
  background:linear-gradient(180deg,rgba(10,42,33,.9),rgba(15,61,48,.84)),
             url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.06) 0 2px,transparent 2px 14px);
}
.hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(244,241,234,.72);margin-bottom:22px}
.breadcrumb a{color:rgba(244,241,234,.72);transition:color .18s}
.breadcrumb a:hover{color:#fff}
.breadcrumb span[aria-current]{color:#fff}
.hero__tag{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.06em;font-weight:600;
  color:#F3E4C4;background:rgba(217,164,65,.16);border:1px solid rgba(217,164,65,.5);
  margin-bottom:18px;
}
.hero h1{font-size:clamp(28px,4vw,42px);color:#fff;max-width:820px}
.hero__sub{font-size:clamp(15px,1.6vw,18px);color:rgba(244,241,234,.9);margin:16px 0 0;max-width:660px}
.hero__meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.pill-dark{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--inv);background:rgba(255,255,255,.1);border:1px solid var(--line-dark);
}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ---------- generic blocks ---------- */
.section-head{max-width:760px;margin-bottom:34px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.h2-block{display:flex;align-items:center;gap:12px}
.h2-block::before{content:"";flex:0 0 auto;width:3px;height:20px;border-radius:2px;background:var(--green-700)}
.section-head h2{font-size:clamp(22px,2.6vw,30px)}
.section-head--center .h2-block{justify-content:center}
.section-head__note{margin-top:12px;font-size:14px;color:var(--ink-2)}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;
  color:var(--green-700);background:var(--green-soft);border:1px solid rgba(23,97,74,.22);
}
.tag--amber{color:#8A641E;background:var(--amber-soft);border-color:rgba(217,164,65,.5)}
.tag--red{color:var(--red);background:var(--red-soft);border-color:rgba(194,69,47,.35)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- platform cards (双列图文卡流) ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.pcard{
  display:grid;grid-template-columns:168px minmax(0,1fr);gap:20px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.pcard:hover{transform:translateY(-3px);border-color:rgba(23,97,74,.4);box-shadow:var(--sh-2)}
.pcard__media{overflow:hidden;border-radius:var(--r-sm);background:var(--band)}
.pcard__media img{width:100%;height:150px;object-fit:cover;transition:transform .2s ease-out}
.pcard:hover .pcard__media img{transform:scale(1.03)}
.pcard h3{font-size:19px;margin-bottom:8px}
.pcard__lead{font-size:14px;color:var(--ink-2);margin-bottom:12px}
.tick-list li{
  position:relative;padding-left:18px;font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:7px;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;
  background:var(--green-500);
}
.tick-list li:last-child{margin-bottom:0}

/* ---------- parameter matrix ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.mcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s;
}
.mcard:hover{transform:translateY(-3px);border-color:rgba(23,97,74,.4);box-shadow:var(--sh-2)}
.mcard__head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.mcard__icon{
  width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:var(--green-soft);color:var(--green-700);font-size:16px;font-weight:800;
}
.mcard h3{font-size:17px;margin-bottom:14px}
.mrow{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-top:1px dashed var(--line);font-size:14px}
.mrow:first-of-type{border-top:0}
.mrow dt{color:var(--ink-3);flex:0 0 auto}
.mrow dd{margin:0;color:var(--ink);font-weight:600;text-align:right}
.mrow dd em{font-style:normal;color:var(--amber);font-weight:700}

/* ---------- verify split ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center}
.split__media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3);border:1px solid var(--line)}
.split__media img{width:100%;height:340px;object-fit:cover}
.split__badge{
  position:absolute;left:16px;top:16px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;color:#fff;background:var(--red);
}
.split h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.split p{color:var(--ink-2);font-size:15px}
.check-list li{
  position:relative;padding:12px 0 12px 34px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2);
}
.check-list li:last-child{border-bottom:0}
.check-list li strong{color:var(--ink);font-weight:700}
.check-list li::before{
  content:"";position:absolute;left:0;top:19px;width:18px;height:18px;border-radius:var(--r-pill);
  border:1.5px solid var(--green-500);
  background:
    linear-gradient(45deg,transparent 44%,var(--green-500) 44% 56%,transparent 56%) no-repeat 4px 8px/10px 10px,
    linear-gradient(-45deg,transparent 44%,var(--green-500) 44% 56%,transparent 56%) no-repeat 2px 7px/6px 6px;
}

/* ---------- faq ---------- */
.faq{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.faq-item:hover{border-color:rgba(23,97,74,.35);box-shadow:var(--sh-2)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:var(--r-pill);
  display:flex;align-items:center;justify-content:center;
  background:var(--green-soft);color:var(--green-700);font-size:15px;font-weight:700;line-height:1;
  transition:transform .18s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 20px 18px;font-size:14px;line-height:1.8;color:var(--ink-2);background:var(--band-soft);padding-top:14px;border-top:1px solid var(--line)}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(135deg,var(--green-800),var(--green-900));
  color:var(--inv);padding:56px 44px;text-align:center;
  box-shadow:var(--sh-3);border:1px solid rgba(255,255,255,.1);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.45;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.07) 0 2px,transparent 2px 16px);
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);color:#fff;margin-bottom:14px}
.cta-band p{max-width:620px;margin:0 auto 26px;color:rgba(244,241,234,.86);font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* ---------- footer ---------- */
.site-footer{background:var(--green-900);color:var(--inv);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:38px}
.footer-brand .brand__mark{color:#fff;font-size:19px;font-weight:800;display:block}
.footer-brand .brand__sub{color:rgba(244,241,234,.55);font-size:11px;letter-spacing:.2em;display:block;margin-top:4px}
.footer-brand p{font-size:14px;color:rgba(244,241,234,.68);margin-top:14px;line-height:1.8}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;font-weight:700}
.footer-col a{display:block;font-size:14px;color:rgba(244,241,234,.68);padding:4px 0;transition:color .16s,text-decoration-color .16s;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px}
.footer-col a:hover{color:#fff;text-decoration-color:#fff}
.footer-col address{font-size:14px;color:rgba(244,241,234,.68);line-height:2}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 26px;font-size:13px;color:rgba(244,241,234,.6);
}

/* ---------- empty / skeleton / states ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:44px 20px;text-align:center;background:var(--surface);
  border:1px dashed var(--line);border-radius:var(--r-md);color:var(--ink-2);
}
.empty-state svg{color:var(--green-500)}
.skeleton{height:14px;border-radius:6px;background:linear-gradient(90deg,#EDE8DE 25%,#F6F3EC 37%,#EDE8DE 63%);background-size:400% 100%;animation:sk 1.4s ease infinite}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip{
  padding:7px 16px;border-radius:var(--r-pill);font-size:13px;font-weight:600;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);cursor:pointer;
  transition:background-color .18s,color .18s,border-color .18s;
}
.chip:hover{border-color:rgba(23,97,74,.4);color:var(--green-700)}
.chip.is-on{background:var(--green-700);border-color:var(--green-700);color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .mega-panel{width:min(640px,80vw);grid-template-columns:1fr 1fr;}
  .mega-col--card{display:none}
}
@media (max-width:1023px){
  .nav-desktop{display:none}
  .nav-mobile{display:block}
  .header-actions .btn span.hide-md{display:none}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr;gap:28px}
  .split__media img{height:280px}
}
@media (max-width:767px){
  .section{padding:44px 0}
  .section--tight{padding:38px 0}
  .hero{padding:44px 0 40px}
  .grid-2{grid-template-columns:1fr;gap:18px}
  .pcard{grid-template-columns:1fr}
  .pcard__media img{height:168px}
  .grid-4{grid-template-columns:1fr}
  .faq{grid-template-columns:1fr}
  .cta-band{padding:40px 22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1 / -1}
  body{font-size:15px}
}
@media (max-width:519px){
  .header-actions .btn--primary{display:none}
  .hero__actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .mcard{padding:18px}
}

/* roulang page: category2 */
:root{
  --felt-900:#0A2A21;
  --felt-800:#0F3D30;
  --felt-600:#17614A;
  --felt-400:#2E8E6C;
  --felt-050:#EAF3EE;
  --amber:#D9A441;
  --amber-050:#FBF3E2;
  --red:#C2452F;
  --red-050:#FBEBE7;
  --bg:#F5F1E8;
  --surface:#FFFFFF;
  --band:#EFEAE0;
  --soft:#FAF8F3;
  --ink:#15201B;
  --ink-2:#5B6A62;
  --ink-3:#8A968F;
  --inv:#F4F1EA;
  --line:#E4DDD0;
  --line-dark:rgba(255,255,255,.14);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(16,35,28,.06);
  --sh2:0 8px 24px -12px rgba(16,35,28,.18);
  --sh3:0 18px 40px -20px rgba(16,35,28,.28);
  --font:-apple-system,BlinkMacSystemFont,"Inter","PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--felt-600);text-decoration:none;}
a:hover{color:var(--felt-400);}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
figure{margin:0;}
:focus-visible{outline:2px solid var(--felt-600);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:10px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.btn--primary{background:var(--felt-600);color:var(--inv);box-shadow:var(--sh1);}
.btn--primary:hover{background:var(--felt-400);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2);}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh1);}
.btn--ghost{background:var(--surface);color:var(--felt-600);border-color:var(--felt-600);}
.btn--ghost:hover{background:var(--felt-050);color:var(--felt-800);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(0);}
.btn--light{background:#fff;color:var(--felt-800);}
.btn--light:hover{background:var(--felt-050);color:var(--felt-800);transform:translateY(-1px);box-shadow:var(--sh2);}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:8px;}
.btn--link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:auto;
  padding:0;
  background:none;
  border:0;
  color:var(--felt-600);
  font-weight:600;
  font-size:15px;
}
.btn--link .arrow{transition:transform .18s ease;}
.btn--link:hover .arrow{transform:translateX(3px);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  line-height:1.6;
  font-weight:600;
  border:1px solid transparent;
  white-space:nowrap;
}
.badge--green{background:var(--felt-050);color:var(--felt-600);border-color:rgba(23,97,74,.24);}
.badge--amber{background:var(--amber-050);color:#8A6415;border-color:rgba(217,164,65,.42);}
.badge--red{background:var(--red-050);color:var(--red);border-color:rgba(194,69,47,.32);}
.badge--dark{background:rgba(255,255,255,.1);color:var(--inv);border-color:var(--line-dark);}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(245,241,232,.94);
  border-bottom:1px solid var(--line);
  transition:background .2s ease, box-shadow .2s ease;
}
.site-header.is-scrolled{background:#fff;box-shadow:var(--sh2);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:68px;
}
.brand{
  display:flex;
  align-items:baseline;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand__mark{
  font-size:19px;
  font-weight:800;
  letter-spacing:.02em;
  color:var(--felt-800);
}
.brand__sub{
  font-size:11px;
  letter-spacing:.22em;
  color:var(--ink-3);
  font-weight:600;
}
.brand:hover .brand__mark{color:var(--felt-400);}

.nav-desktop{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  border-radius:8px;
  transition:color .16s ease, background .16s ease;
}
.nav-link:hover{color:var(--felt-600);background:var(--felt-050);}
.nav-link.is-active{color:var(--felt-800);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--felt-600);
}

.nav-mega{position:relative;}
.nav-mega__trigger{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 12px;
  background:none;
  border:0;
  border-radius:8px;
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  cursor:pointer;
  transition:color .16s ease, background .16s ease;
}
.nav-mega__trigger:hover,.nav-mega:focus-within .nav-mega__trigger{color:var(--felt-600);background:var(--felt-050);}
.mega-panel{
  position:absolute;
  top:calc(100% + 12px);
  right:0;
  width:760px;
  display:grid;
  grid-template-columns:1fr 1fr 1.15fr;
  gap:22px;
  padding:24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh3);
  opacity:0;
  visibility:hidden;
  transform:translateY(-4px);
  transition:opacity .12s ease, transform .12s ease, visibility .12s;
}
.nav-mega:hover .mega-panel,
.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--ink-3);
  font-weight:700;
  margin-bottom:12px;
}
.mega-col a{
  display:block;
  padding:7px 0;
  font-size:14px;
  color:var(--ink-2);
  border-bottom:1px dashed transparent;
  transition:color .16s ease, border-color .16s ease;
}
.mega-col a:hover{color:var(--felt-600);border-bottom-color:var(--line);}
.mega-card{
  background:var(--soft);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:14px;
}
.mega-card img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:10px;
  margin-bottom:12px;
}
.mega-card p{font-size:13px;line-height:1.7;color:var(--ink-2);margin-bottom:12px;}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

.mobile-nav{display:none;margin-left:auto;}
.mobile-nav summary{
  list-style:none;
  width:42px;
  height:42px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.mobile-nav summary::-webkit-details-marker{display:none;}
.mobile-nav summary span{
  position:relative;
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--felt-800);
}
.mobile-nav summary span::before,
.mobile-nav summary span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--felt-800);
}
.mobile-nav summary span::before{top:-6px;}
.mobile-nav summary span::after{top:6px;}
.mobile-nav[open] summary{border-color:var(--felt-600);box-shadow:var(--sh1);}
.mobile-nav__panel{
  position:absolute;
  left:16px;
  right:16px;
  top:68px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh3);
  padding:16px 18px;
  z-index:90;
}
.mobile-nav__panel h4{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--ink-3);
  margin:12px 0 6px;
}
.mobile-nav__panel a{
  display:block;
  padding:10px 4px;
  font-size:15px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-nav__panel a:last-of-type{border-bottom:0;}
.mobile-nav__panel .btn{margin-top:14px;width:100%;}

/* ===== 面包屑 ===== */
.crumb{
  padding:20px 0 6px;
  font-size:14px;
  color:var(--ink-3);
}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--felt-600);}
.crumb .sep{margin:0 8px;color:#C7BEB0;}
.crumb .current{color:var(--ink-2);}

/* ===== Hero ===== */
.hero{
  position:relative;
  overflow:hidden;
  background:linear-gradient(180deg,#F7F4EC 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(23,97,74,.05) 0 1px,transparent 1px 16px),
                   repeating-linear-gradient(-45deg,rgba(23,97,74,.05) 0 1px,transparent 1px 16px);
  opacity:.75;
  pointer-events:none;
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
  padding:52px 0 64px;
}
.hero-copy h1{
  font-size:clamp(28px,4vw,42px);
  color:var(--felt-900);
  margin-bottom:16px;
}
.hero-sub{
  font-size:15px;
  color:var(--ink-2);
  margin-bottom:22px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-figure{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh3);
  background:#fff;
}
.hero-figure img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
}
.hero-figure figcaption{
  position:absolute;
  left:16px;
  bottom:16px;
  padding:8px 14px;
  border-radius:var(--r-pill);
  background:rgba(10,42,33,.78);
  color:var(--inv);
  font-size:13px;
  backdrop-filter:blur(4px);
}

/* ===== 通用板块 ===== */
.section{padding:72px 0;}
.section--band{background:var(--band);}
.section--white{background:var(--surface);}
.section--deep{background:var(--felt-900);color:var(--inv);}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head h2{
  position:relative;
  padding-left:16px;
  font-size:clamp(22px,2.6vw,30px);
  color:var(--felt-900);
  margin-bottom:12px;
}
.sec-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  width:3px;
  height:20px;
  border-radius:2px;
  background:var(--felt-600);
}
.sec-head .tag{margin-bottom:14px;}
.sec-head .lead{font-size:15px;color:var(--ink-2);}
.section--deep .sec-head h2{color:var(--inv);}
.section--deep .sec-head h2::before{background:var(--amber);}
.section--deep .sec-head .lead{color:rgba(244,241,234,.72);}

/* ===== 时间线 ===== */
.timeline{position:relative;}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;
  top:14px;
  bottom:14px;
  width:2px;
  background:linear-gradient(180deg,var(--felt-600),rgba(23,97,74,.14));
}
.tl-item{
  position:relative;
  padding-left:66px;
  padding-bottom:38px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;
  left:8px;
  top:2px;
  width:24px;
  height:24px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--amber);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  font-weight:700;
  color:var(--felt-800);
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 5px var(--bg);
  z-index:1;
}
.tl-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 24px;
  box-shadow:var(--sh1);
  transition:border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.tl-body:hover{
  border-color:rgba(23,97,74,.4);
  transform:translateY(-3px);
  box-shadow:var(--sh2);
}
.tl-body h3{
  font-size:19px;
  color:var(--felt-900);
  margin-bottom:10px;
}
.tl-body p{font-size:15px;color:var(--ink-2);}
.tl-media{
  margin-top:16px;
  display:grid;
  grid-template-columns:112px minmax(0,1fr);
  gap:16px;
  align-items:center;
  padding:12px;
  background:var(--soft);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
}
.tl-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:8px;
}
.tl-media span{font-size:13px;line-height:1.7;color:var(--ink-2);}

/* ===== 动作速览 ===== */
.action-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:36px;
}
.action-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px 28px;
}
.action-item{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:14px;
  padding:18px 20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh1);
  transition:border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.action-item:hover{border-color:rgba(23,97,74,.4);box-shadow:var(--sh2);transform:translateY(-3px);}
.action-item .idx{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:34px;
  height:26px;
  padding:0 8px;
  border-radius:6px;
  background:var(--amber-050);
  border:1px solid rgba(217,164,65,.45);
  color:#8A6415;
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
}
.action-item strong{display:block;font-size:16px;color:var(--felt-900);margin-bottom:4px;}
.action-item p{font-size:14px;color:var(--ink-2);}

/* ===== 交错图文 ===== */
.zig{display:grid;gap:56px;}
.zig-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:44px;
  align-items:center;
}
.zig-row--rev .zig-fig{order:2;}
.zig-fig{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh2);
  background:#fff;
}
.zig-fig img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease;}
.zig-fig:hover img{transform:scale(1.03);}
.zig-text h3{
  font-size:22px;
  color:var(--felt-900);
  margin-bottom:12px;
}
.zig-text p{font-size:15px;color:var(--ink-2);margin-bottom:14px;}
.zig-list{margin-bottom:18px;}
.zig-list li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--ink-2);
  margin-bottom:8px;
}
.zig-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--felt-600);
}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh1);
  overflow:hidden;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(23,97,74,.34);}
.faq-item[open]{border-color:rgba(23,97,74,.45);box-shadow:var(--sh2);}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:16px;
  font-weight:700;
  color:var(--felt-900);
  cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{
  position:relative;
  flex:0 0 auto;
  width:22px;
  height:22px;
  border-radius:50%;
  border:1px solid rgba(23,97,74,.3);
  background:var(--felt-050);
  transition:transform .18s ease;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  width:10px;
  height:1.6px;
  border-radius:2px;
  background:var(--felt-600);
  transform:translate(-50%,-50%);
}
.faq-item summary .plus::after{transform:translate(-50%,-50%) rotate(90deg);}
.faq-item[open] summary .plus{transform:rotate(45deg);}
.faq-answer{
  padding:0 22px 20px;
  border-top:1px solid var(--line);
  background:var(--soft);
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
  padding-top:16px;
}

/* ===== CTA ===== */
.cta-wrap{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--felt-900);
  color:var(--inv);
  border:1px solid var(--line-dark);
  padding:56px 48px;
}
.cta-wrap::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  opacity:.16;
  pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:44px;align-items:center;}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;color:var(--inv);}
.cta-inner p{font-size:15px;color:rgba(244,241,234,.76);margin-bottom:22px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.subscribe{
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-dark);
  border-radius:var(--r-md);
  padding:22px;
}
.subscribe h3{font-size:16px;color:var(--inv);margin-bottom:6px;}
.subscribe p{font-size:13px;color:rgba(244,241,234,.68);margin-bottom:14px;}
.field{display:block;}
.field-label{display:block;font-size:14px;color:rgba(244,241,234,.82);margin-bottom:6px;}
.field-input{
  width:100%;
  height:44px;
  padding:0 14px;
  border-radius:10px;
  border:1px solid var(--line-dark);
  background:rgba(255,255,255,.94);
  color:var(--ink);
  font-size:15px;
  transition:border-color .16s ease, box-shadow .16s ease;
}
.field-input::placeholder{color:var(--ink-3);}
.field-input:focus{
  outline:none;
  border-color:var(--felt-400);
  box-shadow:0 0 0 2px rgba(46,142,108,.45);
}
.subscribe-row{display:flex;gap:10px;}
.subscribe-row .field-input{flex:1 1 auto;}
.form-tip{font-size:12px;color:rgba(244,241,234,.6);margin-top:10px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--felt-900);color:var(--inv);padding:60px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand__mark{color:var(--inv);display:block;font-size:19px;font-weight:800;}
.footer-brand .brand__sub{display:block;font-size:11px;letter-spacing:.22em;color:rgba(244,241,234,.6);margin:6px 0 14px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(244,241,234,.72);max-width:340px;}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--inv);
  margin-bottom:16px;
}
.footer-col a{
  display:block;
  font-size:14px;
  color:rgba(244,241,234,.68);
  padding:5px 0;
  transition:color .16s ease;
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-col address{
  font-style:normal;
  font-size:14px;
  line-height:1.9;
  color:rgba(244,241,234,.68);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(244,241,234,.6);
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .mega-panel{width:600px;grid-template-columns:1fr 1fr;}
  .mega-col--card{grid-column:1 / -1;}
}
@media (max-width:1023px){
  .nav-desktop{display:none;}
  .mobile-nav{display:block;}
  .header-actions{display:none;}
  .header-inner{gap:16px;}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:32px;padding:40px 0 48px;}
  .section{padding:56px 0;}
  .action-grid{grid-template-columns:minmax(0,1fr);}
  .zig-row{grid-template-columns:minmax(0,1fr);gap:26px;}
  .zig-row--rev .zig-fig{order:0;}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:28px;}
  .cta-wrap{padding:40px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .brand__sub{display:none;}
  .section{padding:44px 0;}
  .hero-copy h1{font-size:clamp(26px,7vw,32px);}
  .tl-item{padding-left:56px;padding-bottom:30px;}
  .tl-body{padding:18px;}
  .tl-media{grid-template-columns:minmax(0,1fr);}
  .zig-text h3{font-size:19px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand p{max-width:none;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .subscribe-row{flex-direction:column;}
  .subscribe-row .btn{width:100%;}
  .btn{width:100%;}
  .mobile-nav summary{width:40px;}
  .sec-head h2{padding-left:14px;}
}

/* roulang page: category3 */
:root{
  --felt-900:#0A2A21;
  --felt-800:#0F3D30;
  --felt-600:#17614A;
  --felt-400:#2E8E6C;
  --felt-tint:#EAF3EE;
  --amber:#D9A441;
  --amber-tint:#FBF3E0;
  --red:#C2452F;
  --red-tint:#FBEDEA;
  --bg:#F5F1E8;
  --surface:#FFFFFF;
  --band:#EFEAE0;
  --soft:#FAF8F3;
  --ink:#15201B;
  --ink-2:#5B6A62;
  --ink-3:#8A968F;
  --ink-inv:#F4F1EA;
  --line:#E4DDD0;
  --line-inv:rgba(255,255,255,.14);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,35,28,.06);
  --sh-2:0 8px 24px -12px rgba(16,35,28,.18);
  --sh-3:0 18px 40px -20px rgba(16,35,28,.28);
  --font:-apple-system,BlinkMacSystemFont,"Inter","PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;}

body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;color:var(--ink);}

p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}

a{color:var(--felt-600);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--felt-400);}

img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;}

button{font-family:inherit;}
input,textarea,select{font-family:inherit;font-size:15px;}

:focus-visible{outline:2px solid var(--felt-600);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:10px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  text-decoration:none;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn--primary{
  background:var(--felt-600);
  color:var(--ink-inv);
  box-shadow:var(--sh-1);
}
.btn--primary:hover{
  background:var(--felt-400);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-2);
}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn--ghost{
  background:var(--surface);
  color:var(--felt-600);
  border-color:rgba(23,97,74,.35);
}
.btn--ghost:hover{
  background:var(--felt-tint);
  color:var(--felt-600);
  border-color:var(--felt-600);
}
.btn--outline-inv{
  background:transparent;
  color:var(--ink-inv);
  border-color:rgba(255,255,255,.42);
}
.btn--outline-inv:hover{
  background:rgba(255,255,255,.1);
  border-color:#fff;
  color:#fff;
}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-sm);}
.btn[disabled],.btn.is-disabled{
  opacity:.4;
  cursor:not-allowed;
  transform:none;
  box-shadow:none;
}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  line-height:1;
  padding:6px 10px;
  border-radius:var(--r-pill);
  border:1px solid;
  font-weight:600;
  letter-spacing:.4px;
}
.tag--amber{background:var(--amber-tint);border-color:rgba(217,164,65,.45);color:#8A6418;}
.tag--green{background:var(--felt-tint);border-color:rgba(23,97,74,.28);color:var(--felt-600);}
.tag--red{background:var(--red-tint);border-color:rgba(194,69,47,.35);color:var(--red);}

.pill-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  list-style:none;
  padding:0;
  margin:22px 0 0;
}
.pill{
  font-size:13px;
  line-height:1;
  padding:9px 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-inv);
  background:rgba(255,255,255,.08);
  color:var(--ink-inv);
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}

.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:68px;
}

.brand{
  display:flex;
  flex-direction:column;
  gap:1px;
  flex:none;
  text-decoration:none;
}
.brand__mark{
  font-size:19px;
  font-weight:800;
  letter-spacing:.6px;
  line-height:1.15;
  color:var(--felt-800);
}
.brand__sub{
  font-size:10.5px;
  letter-spacing:2px;
  line-height:1.2;
  color:var(--ink-3);
}
.brand:hover .brand__mark{color:var(--felt-600);}

.nav-desktop{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 12px;
  border-radius:var(--r-sm);
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-2);
  text-decoration:none;
  position:relative;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--felt-600);background:var(--felt-tint);}
.nav-link.is-active{color:var(--felt-600);font-weight:700;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--felt-600);
}

.nav-mega{position:relative;}
.nav-mega::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:100%;
  height:14px;
}
.nav-mega__trigger{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:38px;
  padding:0 12px;
  border:0;
  background:transparent;
  border-radius:var(--r-sm);
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-2);
  cursor:pointer;
  transition:color .18s ease,background .18s ease;
}
.nav-mega__trigger:hover{color:var(--felt-600);background:var(--felt-tint);}

.mega-panel{
  position:absolute;
  top:calc(100% + 10px);
  right:0;
  width:720px;
  display:grid;
  grid-template-columns:1fr 1fr 1.1fr;
  gap:20px;
  padding:22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-3);
  opacity:0;
  visibility:hidden;
  transform:translateY(-4px);
  transition:opacity .12s ease-out,transform .12s ease-out,visibility .12s;
}
.nav-mega:hover .mega-panel,
.nav-mega:focus-within .mega-panel{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.mega-col h4{
  font-size:12px;
  letter-spacing:1.4px;
  color:var(--ink-3);
  font-weight:700;
  margin:0 0 10px;
  text-transform:uppercase;
}
.mega-col a{
  display:block;
  padding:7px 0;
  font-size:14px;
  color:var(--ink);
  border-bottom:1px dashed var(--line);
}
.mega-col a:last-child{border-bottom:0;}
.mega-col a:hover{color:var(--felt-600);}
.mega-col--card{border-left:1px solid var(--line);padding-left:20px;}
.mega-card img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-sm);
  background:var(--band);
}
.mega-card p{
  font-size:13px;
  line-height:1.7;
  color:var(--ink-2);
  margin:12px 0;
}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
}

.mobile-nav{display:none;position:relative;margin-left:auto;}
.mobile-nav summary{
  list-style:none;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 13px;
  font-size:14px;
  color:var(--ink-2);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:10px;
}
.mobile-nav summary::-webkit-details-marker{display:none;}
.mobile-nav[open] summary{border-color:var(--felt-600);color:var(--felt-600);}
.burger{
  width:14px;
  height:10px;
  position:relative;
  flex:none;
}
.burger::before,.burger::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  height:1.6px;
  background:currentColor;
  border-radius:2px;
}
.burger::before{top:0;}
.burger::after{bottom:0;}
.mobile-panel{
  position:absolute;
  right:0;
  top:calc(100% + 12px);
  width:min(84vw,320px);
  display:flex;
  flex-direction:column;
  gap:2px;
  padding:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-3);
  z-index:90;
}
.mobile-panel a{
  padding:10px 12px;
  border-radius:var(--r-sm);
  font-size:14.5px;
  color:var(--ink);
}
.mobile-panel a:hover{background:var(--felt-tint);color:var(--felt-600);}
.mobile-panel a.is-active{background:var(--felt-tint);color:var(--felt-600);font-weight:700;}
.mobile-panel .btn{margin-top:8px;width:100%;}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{
  background:var(--band);
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:14px 0;
  font-size:14px;
  color:var(--ink-3);
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--felt-600);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb em{font-style:normal;color:var(--ink-2);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  color:var(--ink-inv);
  background:
    linear-gradient(180deg,rgba(10,42,33,.93),rgba(15,61,48,.88)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(45deg,rgba(255,255,255,.035) 0 2px,transparent 2px 16px),
    repeating-linear-gradient(-45deg,rgba(255,255,255,.035) 0 2px,transparent 2px 16px);
}
.page-hero__inner{
  position:relative;
  padding:60px 20px 54px;
  max-width:860px;
}
.page-hero h1{
  color:var(--ink-inv);
  font-size:clamp(28px,4vw,42px);
  margin-bottom:16px;
}
.page-hero__sub{
  font-size:14px;
  line-height:1.7;
  color:rgba(244,241,234,.82);
  letter-spacing:.4px;
  margin:0;
}
.page-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}

/* ---------- 板块通用 ---------- */
.section{padding:72px 0;}
.section--band{background:var(--band);}
.section--soft{background:var(--soft);}

.section-head{max-width:760px;margin-bottom:34px;}
.section-title{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:clamp(22px,2.6vw,30px);
  margin:12px 0 10px;
}
.section-title::before{
  content:"";
  flex:none;
  width:3px;
  height:20px;
  border-radius:2px;
  background:var(--felt-600);
}
.section-desc{
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
  margin:0;
}

/* ---------- 筛选胶囊 ---------- */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:26px;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-2);
  font-size:13.5px;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.chip:hover{background:var(--felt-tint);color:var(--felt-600);border-color:rgba(23,97,74,.35);}
.chip.is-active{
  background:var(--felt-600);
  border-color:var(--felt-600);
  color:#fff;
  box-shadow:var(--sh-1);
}

/* ---------- 更新日志列表 ---------- */
.log-list{display:flex;flex-direction:column;gap:16px;}
.log-item{
  display:grid;
  grid-template-columns:210px 1fr;
  gap:26px;
  padding:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.log-item:hover{
  border-color:rgba(23,97,74,.4);
  box-shadow:var(--sh-2);
  transform:translateY(-3px);
}
.log-meta{display:flex;flex-direction:column;gap:8px;}
.version-pill{
  align-self:flex-start;
  font-size:13px;
  font-weight:700;
  line-height:1;
  padding:7px 14px;
  border-radius:var(--r-pill);
  color:var(--felt-600);
  background:var(--felt-tint);
  border:1px solid rgba(23,97,74,.26);
  letter-spacing:.4px;
}
.version-pill--amber{
  color:#8A6418;
  background:var(--amber-tint);
  border-color:rgba(217,164,65,.45);
}
.log-date{font-size:13px;color:var(--ink-3);letter-spacing:.4px;}
.log-body h3{font-size:18px;margin-bottom:12px;}
.log-points{list-style:none;display:flex;flex-direction:column;gap:9px;}
.log-points li{
  position:relative;
  padding-left:16px;
  font-size:14.5px;
  line-height:1.75;
  color:var(--ink-2);
}
.log-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--felt-400);
}

/* ---------- 图文准备清单 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:44px;
  align-items:center;
}
.split__media{position:relative;}
.split__media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  background:var(--band);
}
.split__media::after{
  content:"";
  position:absolute;
  inset:10px;
  border:1px solid rgba(255,255,255,.28);
  border-radius:16px;
  pointer-events:none;
}
.checklist{list-style:none;display:flex;flex-direction:column;gap:16px;margin-top:6px;}
.checklist li{
  display:grid;
  grid-template-columns:28px 1fr;
  gap:14px;
  align-items:start;
}
.checklist .num{
  width:28px;
  height:28px;
  border-radius:var(--r-sm);
  background:var(--felt-tint);
  border:1px solid rgba(23,97,74,.24);
  color:var(--felt-600);
  font-size:13px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  line-height:1;
}
.checklist h3{font-size:16px;margin-bottom:5px;}
.checklist p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0;}

/* ---------- 对比矩阵 ---------- */
.matrix-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.matrix-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.matrix-card:hover{
  border-color:rgba(23,97,74,.4);
  box-shadow:var(--sh-2);
  transform:translateY(-3px);
}
.matrix-card h3{font-size:17px;margin-bottom:4px;}
.matrix-card__note{font-size:13px;color:var(--ink-3);margin:0;}
.matrix-head{
  display:grid;
  grid-template-columns:84px 1fr 1fr;
  gap:10px;
  margin-top:16px;
}
.matrix-head span{
  font-size:12.5px;
  font-weight:700;
  text-align:center;
  padding:7px 6px;
  border-radius:var(--r-sm);
  color:var(--felt-600);
  background:var(--felt-tint);
  border:1px solid rgba(23,97,74,.2);
}
.matrix-head span:first-child{background:transparent;border-color:transparent;}
.matrix-row{
  display:grid;
  grid-template-columns:84px 1fr 1fr;
  gap:10px;
  padding:11px 0;
  border-top:1px dashed var(--line);
  font-size:13.5px;
  line-height:1.7;
}
.matrix-key{color:var(--ink-3);}
.matrix-val{color:var(--ink);}

/* ---------- 空态 ---------- */
.empty-state{
  margin-top:22px;
  padding:44px 24px;
  text-align:center;
  background:var(--surface);
  border:1px dashed var(--line);
  border-radius:var(--r-md);
}
.empty-state svg{margin:0 auto 14px;display:block;color:var(--felt-400);}
.empty-state h3{font-size:17px;margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--ink-2);max-width:520px;margin:0 auto 16px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:rgba(23,97,74,.34);box-shadow:var(--sh-2);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-marker{
  position:relative;
  width:16px;
  height:16px;
  flex:none;
  transition:transform .18s ease;
}
.faq-marker::before,.faq-marker::after{
  content:"";
  position:absolute;
  background:var(--felt-600);
  border-radius:2px;
}
.faq-marker::before{left:0;top:7px;width:16px;height:2px;}
.faq-marker::after{left:7px;top:0;width:2px;height:16px;}
.faq-item[open] .faq-marker{transform:rotate(45deg);}
.faq-body{
  padding:16px 22px 20px;
  font-size:14px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--soft);
  border-top:1px solid var(--line);
}

/* ---------- CTA 深色带 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  padding:56px 28px;
  text-align:center;
  color:var(--ink-inv);
  background:var(--felt-900);
  box-shadow:var(--sh-3);
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(45deg,rgba(255,255,255,.04) 0 2px,transparent 2px 16px),
    repeating-linear-gradient(-45deg,rgba(255,255,255,.04) 0 2px,transparent 2px 16px);
}
.cta-band > *{position:relative;}
.cta-band h2{
  color:var(--ink-inv);
  font-size:clamp(22px,2.6vw,30px);
  margin-bottom:12px;
}
.cta-band p{
  font-size:14.5px;
  color:rgba(244,241,234,.8);
  max-width:620px;
  margin:0 auto 24px;
}
.cta-band__actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:center;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;
  background:var(--felt-900);
  color:var(--ink-inv);
  padding:56px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:36px;
  padding-bottom:40px;
}
.footer-brand .brand__mark{
  display:block;
  font-size:19px;
  font-weight:800;
  letter-spacing:.6px;
  color:#fff;
}
.footer-brand .brand__sub{
  display:block;
  margin-top:3px;
  font-size:10.5px;
  letter-spacing:2px;
  color:rgba(244,241,234,.6);
}
.footer-brand p{
  margin:14px 0 0;
  font-size:14px;
  line-height:1.85;
  color:rgba(244,241,234,.66);
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
  color:var(--ink-inv);
}
.footer-col a{
  display:block;
  font-size:14px;
  line-height:1.6;
  padding:5px 0;
  color:rgba(244,241,234,.7);
}
.footer-col a:hover{
  color:#fff;
  text-decoration:underline;
  text-underline-offset:3px;
}
.footer-col address{
  font-style:normal;
  font-size:14px;
  line-height:1.9;
  color:rgba(244,241,234,.7);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  padding:18px 0 22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(244,241,234,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .mega-panel{width:620px;}
}

@media (max-width:1023px){
  .nav-desktop{display:none;}
  .mobile-nav{display:block;}
  .split{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}

@media (max-width:900px){
  .matrix-grid{grid-template-columns:1fr;}
}

@media (max-width:768px){
  body{font-size:15px;}
  .section{padding:44px 0;}
  .page-hero__inner{padding:44px 20px 40px;}
  .section-head{margin-bottom:26px;}
  .log-item{grid-template-columns:1fr;gap:14px;padding:20px;}
  .log-meta{flex-direction:row;align-items:center;gap:12px;}
  .matrix-head{grid-template-columns:72px 1fr 1fr;gap:8px;}
  .matrix-row{grid-template-columns:72px 1fr 1fr;gap:8px;font-size:13px;}
  .cta-band{padding:40px 20px;border-radius:var(--r-md);}
  .footer-grid{grid-template-columns:1fr;gap:22px;padding-bottom:28px;}
  .footer-brand p{max-width:none;}
}

@media (max-width:520px){
  .brand__sub{font-size:9px;letter-spacing:1.4px;}
  .header-actions .btn{display:none;}
  .header-inner{gap:12px;}
  .page-hero__actions .btn{width:100%;}
  .cta-band__actions .btn{width:100%;}
  .pill{font-size:12px;padding:8px 12px;}
  .faq-item summary{padding:16px;font-size:15px;}
  .faq-body{padding:14px 16px 18px;}
  .matrix-card{padding:18px;}
}

/* roulang page: category4 */
:root{
  --felt-900:#0A2A21;
  --felt-800:#0F3D30;
  --felt-700:#17614A;
  --felt-500:#2E8E6C;
  --felt-soft:#EAF3EE;
  --amber:#D9A441;
  --amber-soft:#FBF3E2;
  --red:#C2452F;
  --red-soft:#FBEDEA;
  --bg:#F5F1E8;
  --band:#EFEAE0;
  --surface:#FFFFFF;
  --text:#15201B;
  --muted:#5B6A62;
  --faint:#8A968F;
  --line:#E4DDD0;
  --line-dark:rgba(255,255,255,.14);
  --inv:#F4F1EA;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,35,28,.06);
  --sh-2:0 8px 24px -12px rgba(16,35,28,.18);
  --sh-3:0 18px 40px -20px rgba(16,35,28,.28);
  --sec-y:72px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",-apple-system,Inter,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
button{font:inherit;color:inherit;cursor:pointer;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
address{font-style:normal;}
:focus-visible{outline:2px solid var(--felt-700);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#F5F1E8;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;flex-direction:column;line-height:1.1;flex:0 0 auto;}
.brand__mark{font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--felt-800);}
.brand__sub{font-size:10.5px;letter-spacing:.2em;color:var(--muted);margin-top:4px;}
.nav-desktop{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:var(--r-sm);
  font-size:15px;color:var(--muted);white-space:nowrap;
}
.nav-link:hover{color:var(--felt-700);background:var(--felt-soft);}
.nav-link.is-active{color:var(--felt-700);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--felt-700);
}
.nav-mega{position:relative;}
.nav-mega__trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 12px;border:0;background:transparent;border-radius:var(--r-sm);
  font-size:15px;color:var(--muted);
}
.nav-mega__trigger:hover{color:var(--felt-700);background:var(--felt-soft);}
.mega-panel{
  position:absolute;top:calc(100% + 10px);right:0;
  width:660px;padding:22px;
  display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(-4px);
  transition:opacity .12s ease,transform .12s ease,visibility .12s ease;
}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:13px;letter-spacing:.12em;color:var(--faint);font-weight:700;margin-bottom:10px;}
.mega-col a{display:block;padding:7px 0;font-size:14.5px;color:var(--muted);border-bottom:1px dashed transparent;}
.mega-col a:hover{color:var(--felt-700);border-bottom-color:var(--felt-500);}
.mega-card{background:var(--band);border:1px solid var(--line);border-radius:var(--r-md);padding:14px;}
.mega-card img{border-radius:var(--r-sm);aspect-ratio:16/10;object-fit:cover;width:100%;}
.mega-card p{font-size:13px;color:var(--muted);line-height:1.7;margin:10px 0 12px;}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--felt-800);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{
  border-top:1px solid var(--line);background:var(--surface);
  padding:14px 0 22px;
}
.mobile-drawer[hidden]{display:none;}
.mobile-group{margin-bottom:14px;}
.mobile-group h4{font-size:13px;letter-spacing:.1em;color:var(--faint);margin-bottom:6px;}
.mobile-drawer a{display:block;padding:10px 12px;border-radius:var(--r-sm);font-size:15px;color:var(--muted);}
.mobile-drawer a:hover,.mobile-drawer a.is-active{background:var(--felt-soft);color:var(--felt-700);}
.mobile-drawer .btn{margin-top:10px;width:100%;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn--primary{background:var(--felt-700);color:var(--inv);box-shadow:var(--sh-1);}
.btn--primary:hover{background:var(--felt-500);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn--ghost{background:var(--surface);color:var(--felt-700);border-color:var(--felt-700);}
.btn--ghost:hover{background:var(--felt-soft);transform:translateY(-1px);}
.btn--onDark{background:var(--amber);color:#241A05;box-shadow:none;}
.btn--onDark:hover{background:#E7B657;transform:translateY(-1px);}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-sm);}
.btn--block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--felt-700);}
.link-more::after{content:"→";transition:transform .18s ease;}
.link-more:hover::after{transform:translateX(3px);}

/* ---------- badge / label ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;line-height:1.6;border:1px solid var(--line);background:var(--surface);color:var(--muted);
}
.pill--amber{background:var(--amber-soft);border-color:rgba(217,164,65,.45);color:#8A6415;}
.pill--green{background:var(--felt-soft);border-color:rgba(23,97,74,.28);color:var(--felt-700);}
.pill--red{background:var(--red-soft);border-color:rgba(194,69,47,.35);color:var(--red);}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--faint);padding-top:22px;}
.breadcrumb a{color:var(--faint);}
.breadcrumb a:hover{color:var(--felt-700);}
.breadcrumb span.sep{color:#C9C2B4;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:34px 0 56px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(105deg,rgba(10,42,33,.94) 0%,rgba(15,61,48,.86) 52%,rgba(15,61,48,.6) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  color:var(--inv);
}
.page-hero .breadcrumb{color:rgba(244,241,234,.66);}
.page-hero .breadcrumb a{color:rgba(244,241,234,.66);}
.page-hero .breadcrumb a:hover{color:#fff;}
.page-hero .breadcrumb span.sep{color:rgba(244,241,234,.35);}
.page-hero__tag{
  display:inline-block;margin:26px 0 14px;
  padding:5px 12px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.08em;
  background:rgba(217,164,65,.16);border:1px solid rgba(217,164,65,.5);color:#F0CE8A;
}
.page-hero h1{
  font-size:clamp(28px,4vw,42px);line-height:1.28;font-weight:800;letter-spacing:.01em;
  max-width:820px;
}
.page-hero__sub{font-size:14px;color:rgba(244,241,234,.75);margin-top:14px;}
.page-hero__lead{max-width:660px;margin-top:16px;font-size:16px;color:rgba(244,241,234,.86);}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-badges .pill{background:rgba(255,255,255,.09);border-color:var(--line-dark);color:rgba(244,241,234,.9);}

/* ---------- sections ---------- */
.section{padding:var(--sec-y) 0;}
.section--band{background:var(--band);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px;}
.section__titleWrap{display:flex;flex-direction:column;gap:10px;}
.section__label{
  display:inline-block;align-self:flex-start;
  padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;color:#8A6415;background:var(--amber-soft);border:1px solid rgba(217,164,65,.4);
}
.section__title{
  position:relative;padding-left:14px;
  font-size:clamp(22px,2.6vw,30px);line-height:1.32;font-weight:800;
}
.section__title::before{
  content:"";position:absolute;left:0;top:.28em;width:3px;height:20px;border-radius:2px;background:var(--felt-700);
}
.section__sub{font-size:14px;color:var(--muted);max-width:620px;}
.section__sub--lead{font-size:15px;}

/* ---------- brief cards ---------- */
.brief-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.brief{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.brief:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(23,97,74,.4);}
.brief__num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--felt-soft);color:var(--felt-700);
  font-size:14px;font-weight:800;margin-bottom:14px;
}
.brief h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.brief p{font-size:15px;color:var(--muted);line-height:1.8;}

/* ---------- alternating rows ---------- */
.alt-list{display:flex;flex-direction:column;gap:26px;}
.alt-row{
  display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.alt-row:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(23,97,74,.4);}
.alt-media{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);}
.alt-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .22s ease-out;}
.alt-row:hover .alt-media img{transform:scale(1.03);}
.alt-row:nth-child(even) .alt-media{order:2;}
.alt-index{
  display:inline-block;margin-bottom:12px;
  font-size:12px;letter-spacing:.14em;color:var(--felt-700);
  border-left:2px solid var(--amber);padding-left:8px;
}
.alt-body h3{font-size:20px;font-weight:700;margin-bottom:10px;}
.alt-body p{font-size:15.5px;color:var(--muted);line-height:1.85;}
.alt-body p + p{margin-top:10px;}
.inline-link{color:var(--felt-700);font-weight:600;border-bottom:1px solid rgba(23,97,74,.35);}
.inline-link:hover{color:var(--felt-500);border-bottom-color:var(--felt-500);}

/* ---------- checklist ---------- */
.check-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:start;}
.check-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh-1);
}
.check-card h3{font-size:19px;font-weight:700;margin-bottom:16px;}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--muted);line-height:1.75;}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:12px;border-radius:4px;
  background:var(--felt-soft);border:2px solid var(--felt-500);
}
.note-card{
  background:var(--felt-900);color:var(--inv);border-radius:var(--r-md);padding:26px;
  position:relative;overflow:hidden;
}
.note-card::after{
  content:"";position:absolute;inset:0;opacity:.05;pointer-events:none;
  background:repeating-linear-gradient(45deg,#fff 0 1px,transparent 1px 14px);
}
.note-card h3{font-size:18px;font-weight:700;margin-bottom:12px;}
.note-card p{font-size:14.5px;line-height:1.85;color:rgba(244,241,234,.82);}
.note-card p + p{margin-top:12px;}
.note-card .pill{background:rgba(217,164,65,.14);border-color:rgba(217,164,65,.45);color:#F0CE8A;margin-bottom:14px;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:700;list-style:none;cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:24px;height:24px;line-height:22px;text-align:center;
  border-radius:50%;border:1px solid var(--line);color:var(--felt-700);font-weight:700;
  transition:transform .18s ease,background-color .18s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);background:var(--felt-soft);}
.faq-item summary:hover{color:var(--felt-700);}
.faq-answer{padding:0 22px 20px;background:#FAF8F3;border-top:1px solid var(--line);}
.faq-answer p{font-size:14px;line-height:1.8;color:var(--muted);padding-top:14px;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--felt-900);color:var(--inv);
  border-radius:var(--r-lg);padding:56px 40px;text-align:center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.04;pointer-events:none;
  background:repeating-linear-gradient(45deg,#fff 0 1px,transparent 1px 16px);
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.32;}
.cta-band p{margin-top:12px;font-size:15.5px;color:rgba(244,241,234,.8);}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:28px;}
.cta-link{color:#F0CE8A;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.cta-link::after{content:"→";transition:transform .18s ease;}
.cta-link:hover::after{transform:translateX(3px);}
.cta-note{margin-top:18px;font-size:13px;color:rgba(244,241,234,.6);}

/* ---------- footer ---------- */
.site-footer{background:var(--felt-900);color:var(--inv);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;}
.footer-brand .brand__mark{color:var(--inv);font-size:20px;}
.footer-brand .brand__sub{color:rgba(244,241,234,.6);display:block;margin-top:6px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(244,241,234,.68);max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--inv);margin-bottom:14px;}
.footer-col a{display:block;font-size:14px;color:rgba(244,241,234,.68);padding:5px 0;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px;}
.footer-col a:hover{color:#fff;text-decoration-color:#fff;}
.footer-col address{font-size:14px;line-height:1.9;color:rgba(244,241,234,.68);}
.footer-bottom{
  margin-top:46px;padding:20px 0;
  border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(244,241,234,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .mega-panel{width:460px;grid-template-columns:1fr 1fr;}
  .mega-col--card{display:none;}
}
@media (max-width:1023px){
  .nav-desktop{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions{margin-left:auto;}
  .brief-grid{grid-template-columns:1fr 1fr;}
  .alt-row{grid-template-columns:1fr;gap:22px;padding:22px;}
  .alt-row:nth-child(even) .alt-media{order:0;}
  .check-wrap{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  :root{--sec-y:44px;}
  body{font-size:15px;}
  .section__head{margin-bottom:24px;}
  .page-hero{padding:26px 0 42px;}
  .brief-grid{grid-template-columns:1fr;}
  .check-list{grid-template-columns:1fr;}
  .cta-band{padding:38px 22px;border-radius:var(--r-md);}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;}
  .hero-actions{gap:10px;}
}
@media (max-width:479px){
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .header-inner{gap:12px;}
  .brand__mark{font-size:18px;}
  .brand__sub{font-size:9.5px;letter-spacing:.14em;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-link{justify-content:center;}
}