/* roulang page: index */
:root{
  --ink:#123B36;
  --bamboo:#3F8F7A;
  --amber:#D9772B;
  --cinnabar:#B23A2E;
  --paper:#F7F4EC;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --text:#1D2523;
  --text-2:#5C6B66;
  --text-3:#8A948F;
  --line:#E3DED2;
  --rule:#D8D2C6;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(18,59,54,.06);
  --shadow-2:0 14px 34px -20px rgba(18,59,54,.35);
  --gap:24px;
  --space-section:104px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--amber);}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--text);font-weight:700;letter-spacing:0;}
h1,h2{font-family:var(--font-serif);line-height:1.3;}
h1{font-size:44px;line-height:1.28;}
h2{font-size:30px;line-height:1.32;}
h3{font-size:21px;line-height:1.45;font-weight:700;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.25em;}
li{margin-bottom:.45em;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}
.section{padding:var(--space-section) 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--surface-2);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--bamboo);text-transform:uppercase;margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:26px;height:2px;background:var(--amber);border-radius:2px;}
.section-head p{color:var(--text-2);font-size:16.5px;margin:0;}
.lead{color:var(--text-2);font-size:17px;max-width:820px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,236,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -20px rgba(18,59,54,.55);}
.nav-wrap{
  display:flex;align-items:center;gap:20px;
  min-height:68px;padding:10px 0;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-serif);font-size:20px;font-weight:700;
  color:var(--ink);white-space:nowrap;flex:0 0 auto;
}
.brand:hover{color:var(--ink);}
.brand__mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;letter-spacing:.02em;
}
.brand__sub{font-family:var(--font-sans);font-size:12px;font-weight:500;color:var(--text-3);display:block;line-height:1.2;}
.chip-nav{
  flex:1 1 auto;display:flex;align-items:center;gap:8px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:4px 2px;
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:38px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:transparent;
  color:var(--text-2);font-size:14.5px;font-weight:600;white-space:nowrap;
}
.chip:hover{background:rgba(18,59,54,.08);color:var(--ink);}
.chip.is-active,.chip[aria-current="page"]{background:var(--ink);border-color:var(--ink);color:#fff;}
.chip.is-active:hover,.chip[aria-current="page"]:hover{background:var(--bamboo);border-color:var(--bamboo);color:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);
  background:var(--surface);
}
.icon-btn:hover{background:rgba(18,59,54,.08);color:var(--ink);border-color:var(--bamboo);}
.menu-toggle{display:none;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:600;line-height:1;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--ink);color:#fff;box-shadow:var(--shadow-1);}
.btn--primary:hover{background:var(--bamboo);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn--ghost{background:transparent;color:var(--ink);border:1px solid var(--ink);}
.btn--ghost:hover{background:rgba(18,59,54,.08);color:var(--ink);transform:translateY(-2px);}
.btn--link{
  padding:0;height:auto;color:var(--ink);font-weight:600;
  text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px;
}
.btn--link:hover{color:var(--amber);}
.btn--light{background:#fff;color:var(--ink);}
.btn--light:hover{background:var(--amber);color:#fff;transform:translateY(-2px);}
.btn[disabled]{opacity:.45;pointer-events:none;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;
  background:rgba(63,143,122,.14);color:#2C6C5C;
}
.badge--time{background:var(--surface-2);color:var(--text-2);}
.badge--pick{background:rgba(217,119,43,.15);color:#A25618;}
.badge--hot{background:rgba(178,58,46,.12);color:var(--cinnabar);}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--text-3);}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(90deg,rgba(18,59,54,.93) 0%,rgba(18,59,54,.86) 46%,rgba(18,59,54,.62) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.10;
  background-image:
    radial-gradient(circle at 12% 24%,rgba(255,255,255,.9) 0 8px,transparent 9px),
    radial-gradient(circle at 82% 18%,rgba(255,255,255,.7) 0 5px,transparent 6px),
    radial-gradient(circle at 62% 82%,rgba(255,255,255,.6) 0 10px,transparent 11px);
}
.hero__inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:56px;align-items:center;
  padding:88px 0 96px;
}
.hero__kicker{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:rgba(217,119,43,.20);color:#F6D9BF;border:1px solid rgba(217,119,43,.45);
  font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero h1{
  color:#fff;font-size:46px;line-height:1.26;margin-bottom:18px;letter-spacing:0;
}
.hero__sub{
  color:rgba(255,255,255,.86);font-size:17.5px;line-height:1.9;max-width:620px;margin-bottom:30px;
}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px;}
.hero__facts{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;border-top:1px solid rgba(255,255,255,.18);padding-top:24px;max-width:640px;
}
.hero__fact strong{display:block;font-family:var(--font-serif);font-size:26px;color:#fff;line-height:1.2;}
.hero__fact span{font-size:13px;color:rgba(255,255,255,.7);}
.hero__card{
  background:rgba(255,255,255,.97);
  border-radius:var(--radius-card);
  border:1px solid rgba(255,255,255,.4);
  box-shadow:0 26px 60px -34px rgba(0,0,0,.6);
  overflow:hidden;
}
.hero__card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero__card-body{padding:20px 22px 24px;}
.hero__card-body h2{font-size:19px;margin-bottom:8px;font-family:var(--font-sans);}
.hero__card-body p{font-size:14.5px;color:var(--text-2);margin-bottom:14px;line-height:1.8;}

/* ---------- feature strip ---------- */
.feature-strip{
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.feature-strip__grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
}
.feature-cell{
  padding:28px 24px;border-right:1px solid var(--line);
}
.feature-cell:last-child{border-right:0;}
.feature-cell i{color:var(--bamboo);font-size:18px;margin-bottom:10px;display:block;}
.feature-cell h3{font-size:16.5px;margin-bottom:6px;}
.feature-cell p{font-size:14px;color:var(--text-2);margin:0;line-height:1.75;}

/* ---------- topic cover ---------- */
.topic-cover{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:48px;align-items:center;
}
.topic-cover__media{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-2);position:relative;
}
.topic-cover__media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.topic-cover__tag{
  position:absolute;left:16px;top:16px;
  background:rgba(18,59,54,.9);color:#fff;font-size:12.5px;font-weight:600;
  padding:6px 12px;border-radius:999px;
}
.topic-cover h2{margin-bottom:16px;}
.topic-cover p{font-size:16.5px;color:var(--text-2);}
.topic-cover ul{list-style:none;padding:0;margin:22px 0 26px;}
.topic-cover ul li{
  position:relative;padding-left:26px;font-size:15.5px;color:var(--text-2);margin-bottom:10px;
}
.topic-cover ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:9px;height:9px;border-radius:3px;
  background:var(--amber);transform:rotate(45deg);
}

/* ---------- toc numbering ---------- */
.toc-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);
}
.toc-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 22px 24px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.toc-item:hover{transform:translateY(-2px);border-color:rgba(63,143,122,.4);box-shadow:var(--shadow-2);}
.toc-item__no{
  font-family:var(--font-serif);font-size:22px;font-weight:700;color:var(--amber);
  line-height:1;flex:0 0 auto;padding-top:2px;
}
.toc-item h3{font-size:17.5px;margin-bottom:6px;}
.toc-item p{font-size:14px;color:var(--text-2);margin:0 0 10px;line-height:1.75;}

/* ---------- card grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-2px);border-color:rgba(63,143,122,.4);box-shadow:var(--shadow-2);}
.card__media{overflow:hidden;}
.card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.card:hover .card__media img{transform:scale(1.04);}
.card__body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.card__body h3{font-size:18px;margin-bottom:8px;}
.card__body p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin-bottom:14px;}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;}

/* ---------- news list ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.news-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:20px 22px;min-height:56px;display:flex;flex-direction:column;gap:8px;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.news-item:hover{border-color:rgba(63,143,122,.45);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.news-item__title{font-size:17px;font-weight:700;color:var(--text);line-height:1.55;display:block;}
.news-item__title:hover{color:var(--amber);}
.news-item__sum{
  font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--text-3);}
.news-item__meta .go{color:var(--ink);font-weight:600;}
.news-item__meta .go:hover{color:var(--amber);}
.empty-state{
  grid-column:1/-1;
  border:1px dashed var(--rule);border-radius:var(--radius-card);
  background:rgba(255,255,255,.7);
  padding:40px 24px;text-align:center;color:var(--text-2);
}
.empty-state i{font-size:26px;color:var(--bamboo);display:block;margin-bottom:12px;}
.empty-state p{margin:0 0 14px;font-size:15.5px;}

/* ---------- rails ---------- */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.rail{display:flex;gap:var(--gap);overflow-x:auto;padding:4px 4px 18px;scroll-snap-type:x mandatory;}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:var(--rule);border-radius:6px;}
.rail .card{flex:0 0 300px;scroll-snap-align:start;}

/* ---------- stats / ranking ---------- */
.stats-band{background:var(--ink);color:#fff;border-radius:20px;padding:44px 44px 40px;position:relative;overflow:hidden;}
.stats-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,143,122,.42),transparent 68%);
}
.stats-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;}
.stat strong{display:block;font-family:var(--font-serif);font-size:34px;line-height:1.1;color:#fff;}
.stat span{font-size:13.5px;color:rgba(255,255,255,.72);}
.stat em{display:block;font-style:normal;font-size:13px;color:var(--amber);font-weight:600;margin-top:6px;}

.rank-list{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--surface);}
.rank-row{
  display:grid;grid-template-columns:56px minmax(0,1.4fr) minmax(0,1fr) 120px;
  align-items:center;gap:16px;padding:16px 22px;border-bottom:1px solid var(--line);
  font-size:15px;
}
.rank-row:last-child{border-bottom:0;}
.rank-row:hover{background:rgba(18,59,54,.04);}
.rank-row__no{font-family:var(--font-serif);font-weight:700;color:var(--bamboo);}
.rank-row__no.is-top{color:var(--amber);}
.rank-row__name{font-weight:600;}
.rank-row__desc{color:var(--text-2);font-size:14px;}
.rank-row__val{text-align:right;font-weight:600;color:var(--ink);}

/* ---------- split steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);counter-reset:step;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-1);position:relative;
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-family:var(--font-serif);font-size:15px;font-weight:700;color:var(--cinnabar);
  display:block;margin-bottom:12px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--text-2);margin:0;line-height:1.8;}

/* ---------- cta bar ---------- */
.save-bar{
  background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.save-bar__inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;padding:26px 0;flex-wrap:wrap;
}
.save-bar__text{font-size:16px;color:var(--text);font-weight:600;}
.save-bar__text span{display:block;font-size:13.5px;color:var(--text-3);font-weight:400;margin-top:2px;}
.save-bar__actions{display:flex;gap:12px;flex-wrap:wrap;}
.save-bar .btn{height:44px;}
.toast{
  position:fixed;left:50%;bottom:34px;transform:translateX(-50%) translateY(14px);
  background:var(--ink);color:#fff;font-size:14px;padding:10px 18px;border-radius:999px;
  opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;z-index:200;
}
.toast.is-on{opacity:1;transform:translateX(-50%) translateY(0);}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.34fr) minmax(0,.66fr);gap:48px;align-items:start;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  min-height:56px;padding:16px 8px;background:transparent;font-size:16.5px;font-weight:600;color:var(--text);
  transition:background-color .18s ease;
}
.faq-q:hover{background:rgba(18,59,54,.04);}
.faq-item.is-open .faq-q{font-weight:700;color:var(--ink);}
.faq-q__ico{
  flex:0 0 auto;width:24px;height:24px;border-radius:7px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;color:var(--bamboo);
  transition:transform .2s ease,background-color .2s ease,color .2s ease;
}
.faq-item.is-open .faq-q__ico{background:var(--ink);border-color:var(--ink);color:#fff;transform:rotate(45deg);}
.faq-a{display:none;padding:0 8px 20px 46px;color:var(--text-2);font-size:15px;line-height:1.85;}
.faq-item.is-open .faq-a{display:block;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.78);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.1fr);gap:40px;}
.site-footer h4{color:#fff;font-size:15.5px;margin-bottom:16px;font-weight:700;}
.site-footer .brand{color:#fff;margin-bottom:14px;}
.site-footer .brand__mark{background:#fff;color:var(--ink);}
.site-footer .brand__sub{color:rgba(255,255,255,.6);}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);}
.site-footer ul{list-style:none;padding:0;margin:0;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul li a{color:rgba(255,255,255,.78);font-size:14.5px;}
.site-footer ul li a:hover{color:var(--amber);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.78);font-size:14.5px;}
.footer-contact i{color:var(--bamboo);margin-top:4px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:var(--amber);}

/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
  h1{font-size:36px;}
  .hero h1{font-size:36px;}
  h2{font-size:27px;}
  .section{padding:76px 0;}
  .hero__inner{grid-template-columns:1fr;gap:40px;padding:64px 0 72px;}
  .hero__card{max-width:520px;}
  .feature-strip__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .feature-cell:nth-child(2){border-right:0;}
  .feature-cell:nth-child(1),.feature-cell:nth-child(2){border-bottom:1px solid var(--line);}
  .topic-cover{grid-template-columns:1fr;gap:32px;}
  .toc-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .rank-row{grid-template-columns:44px minmax(0,1.4fr) minmax(0,1fr) 96px;}
}
@media screen and (max-width:640px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  h1{font-size:29px;}
  .hero h1{font-size:29px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
  .nav-wrap{min-height:60px;gap:12px;flex-wrap:wrap;padding:8px 0;}
  .brand{font-size:18px;flex:1 1 auto;}
  .nav-actions .btn--primary{display:none;}
  .menu-toggle{display:inline-flex;}
  .chip-nav{order:3;flex:1 0 100%;padding-bottom:6px;}
  .hero__facts{grid-template-columns:1fr;}
  .hero__fact{display:flex;align-items:baseline;gap:10px;}
  .hero__fact strong{font-size:22px;}
  .feature-strip__grid{grid-template-columns:1fr;}
  .feature-cell{border-right:0;border-bottom:1px solid var(--line);padding:22px 18px;}
  .feature-cell:last-child{border-bottom:0;}
  .toc-grid,.card-grid,.news-grid,.stats-grid,.steps{grid-template-columns:1fr;}
  .rail .card{flex:0 0 84%;}
  .stats-band{padding:30px 22px;border-radius:16px;}
  .rank-row{grid-template-columns:34px minmax(0,1fr);gap:10px;padding:14px 16px;}
  .rank-row__desc,.rank-row__val{grid-column:2;}
  .rank-row__val{text-align:left;}
  .footer-grid{grid-template-columns:1fr;}
  .save-bar__inner{flex-direction:column;align-items:flex-start;}
  .save-bar__actions{width:100%;}
  .save-bar__actions .btn{flex:1 1 auto;}
  .faq-q{font-size:15.5px;}
  .faq-a{padding-left:8px;}
}

/* roulang page: article */
:root{
  --ink:#123B36;
  --bamboo:#3F8F7A;
  --amber:#D9772B;
  --cinnabar:#B23A2E;
  --paper:#F7F4EC;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --text:#1D2523;
  --text-2:#5C6B66;
  --text-3:#8A948F;
  --border:#E3DED2;
  --divider:#D8D2C6;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(18,59,54,.06);
  --shadow-2:0 14px 34px -20px rgba(18,59,54,.35);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.container--narrow{max-width:860px}
::selection{background:rgba(63,143,122,.24)}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,236,.94);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px -20px rgba(18,59,54,.55)}
.header-inner{display:flex;align-items:center;gap:22px;min-height:68px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;text-decoration:none}
.brand__mark{
  width:40px;height:40px;border-radius:12px;background:var(--ink);color:#F3EFE4;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;letter-spacing:.06em;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--ink)}
.brand__sub{font-size:11.5px;font-weight:500;color:var(--text-3);letter-spacing:.08em;margin-top:3px}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:12px;
  background:var(--surface);color:var(--ink);cursor:pointer;margin-left:auto;
  align-items:center;justify-content:center;transition:background .18s,border-color .18s;
}
.menu-toggle:hover{background:rgba(18,59,54,.07);border-color:var(--bamboo)}
.nav-wrap{flex:1 1 auto;min-width:0;display:flex;justify-content:center}
.chip-nav{display:flex;gap:8px;overflow-x:auto;padding:4px 2px;scrollbar-width:none}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:999px;border:1px solid var(--border);background:transparent;color:var(--text-2);
  font-size:14.5px;font-weight:500;white-space:nowrap;transition:background .18s,color .18s,border-color .18s,transform .18s;
}
.chip:hover{background:rgba(18,59,54,.08);color:var(--ink);border-color:rgba(18,59,54,.22)}
.chip:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.chip.is-active{background:var(--ink);border-color:var(--ink);color:#FFFFFF}
.chip.is-active:hover{background:var(--bamboo);border-color:var(--bamboo);color:#FFFFFF}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:var(--surface);
  color:var(--ink);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
  transition:background .18s,border-color .18s,color .18s;
}
.icon-btn:hover{background:rgba(18,59,54,.07);border-color:var(--bamboo)}
.icon-btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.search-bar{border-top:1px solid var(--border);background:var(--surface)}
.search-bar[hidden]{display:none}
.search-form{display:flex;gap:12px;padding:16px 0;align-items:center}
.search-form label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.search-form input[type="search"]{
  flex:1 1 auto;height:46px;padding:0 16px;border:1px solid var(--border);border-radius:var(--radius-btn);
  background:var(--paper);color:var(--text);transition:border-color .18s,box-shadow .18s;
}
.search-form input[type="search"]:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(18,59,54,.12);
}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;transition:all .18s ease;white-space:nowrap;
}
.btn--primary{background:var(--ink);color:#FFFFFF;border-color:var(--ink)}
.btn--primary:hover{background:var(--bamboo);border-color:var(--bamboo);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn--ghost:hover{background:rgba(18,59,54,.08);transform:translateY(-2px)}
.btn--text{background:transparent;color:var(--ink);height:auto;padding:4px 0;border:0;border-radius:0;text-decoration:underline;text-underline-offset:4px}
.btn--text:hover{color:var(--amber)}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ============ Badges ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 11px;
  border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge--cat{background:rgba(63,143,122,.14);color:#2C6A5A}
.badge--time{background:var(--surface-2);color:var(--text-2)}
.badge--pick{background:rgba(217,119,43,.15);color:#9A5314}

/* ============ Breadcrumb ============ */
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:26px 0 0;font-size:13.5px;color:var(--text-3);
}
.breadcrumb a{color:var(--text-2);transition:color .18s}
.breadcrumb a:hover{color:var(--amber)}
.breadcrumb .sep{color:var(--divider)}
.breadcrumb .current{color:var(--text-3);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ Article ============ */
.article-head{padding:26px 0 0}
.article-head__meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.article-head h1{
  font-family:var(--font-serif);
  font-size:40px;line-height:1.32;font-weight:700;color:var(--ink);
  letter-spacing:.005em;
}
.article-head__lead{
  margin-top:20px;font-size:16.5px;line-height:1.95;color:var(--text-2);
  padding-left:16px;border-left:3px solid rgba(63,143,122,.5);
}
.article-cover{margin:34px 0 0;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--border);background:var(--surface-2)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{font-size:13px;color:var(--text-3);padding:12px 16px;border-top:1px solid var(--border);background:var(--surface)}

.article-body{margin-top:44px}
.entry-content{font-size:17.5px;line-height:1.92;color:var(--text)}
.entry-content > *:first-child{margin-top:0}
.entry-content p{margin:0 0 1.2em}
.entry-content h2{
  position:relative;font-family:var(--font-serif);font-size:27px;line-height:1.42;color:var(--ink);
  margin:2.1em 0 .85em;padding-left:16px;letter-spacing:.005em;
}
.entry-content h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--ink);
}
.entry-content h3{font-size:20px;font-weight:700;color:var(--text);margin:1.7em 0 .7em;line-height:1.5}
.entry-content h4{font-size:17.5px;font-weight:700;margin:1.4em 0 .6em}
.entry-content a{color:var(--ink);text-decoration:underline;text-underline-offset:4px;transition:color .18s}
.entry-content a:hover{color:var(--amber)}
.entry-content ul,.entry-content ol{margin:0 0 1.3em;padding-left:1.5em}
.entry-content ul{list-style:disc}
.entry-content ol{list-style:decimal}
.entry-content li{margin:.5em 0;padding-left:.2em}
.entry-content blockquote{
  margin:1.7em 0;padding:18px 22px;background:#EBF3EF;border-left:3px solid var(--bamboo);
  border-radius:0 12px 12px 0;color:var(--text-2);
}
.entry-content blockquote p:last-child{margin-bottom:0}
.entry-content img{border-radius:var(--radius-card);margin:1.6em 0;border:1px solid var(--border)}
.entry-content figure{margin:1.8em 0}
.entry-content figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.entry-content table{
  width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15.5px;
  border:1px solid var(--border);background:var(--surface);
}
.entry-content th,.entry-content td{padding:12px 14px;border-bottom:1px solid var(--border);text-align:left;line-height:1.7}
.entry-content th{background:var(--surface-2);font-weight:600;color:var(--ink)}
.entry-content tr:last-child td{border-bottom:0}
.entry-content pre{
  background:#11302C;color:#E6F0EB;padding:18px 20px;border-radius:14px;overflow-x:auto;
  font-size:14px;line-height:1.75;margin:1.7em 0;
}
.entry-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:var(--surface-2);padding:2px 6px;border-radius:6px;font-size:.92em;
}
.entry-content pre code{background:transparent;padding:0;color:inherit}
.entry-content hr{border:0;border-top:1px solid var(--divider);margin:2.4em 0}

.empty-state{
  border:1px dashed var(--divider);background:rgba(255,255,255,.7);border-radius:var(--radius-card);
  padding:52px 28px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--text-3)}
.empty-state h3{margin:16px 0 8px;font-size:20px;color:var(--ink)}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:22px}

/* ============ Share bar ============ */
.share-bar{
  margin:52px 0 0;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.share-bar__text{font-size:15px;color:var(--text-2)}
.share-bar__text strong{color:var(--ink);font-weight:600}
.share-bar__actions{display:flex;gap:10px;flex-wrap:wrap}

/* ============ Related ============ */
.section{padding:88px 0 0}
.section--tight{padding-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;flex-wrap:wrap}
.section-head h2{font-family:var(--font-serif);font-size:30px;line-height:1.35;color:var(--ink)}
.section-head p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:62ch}
.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);border-color:rgba(63,143,122,.4);box-shadow:var(--shadow-2)}
.card__media{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card__media img{transform:scale(1.04)}
.card__body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.card__meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.card__title{font-size:18px;font-weight:700;line-height:1.5;color:var(--ink)}
.card__title a{transition:color .18s}
.card__title a:hover{color:var(--bamboo)}
.card__desc{font-size:14.5px;line-height:1.85;color:var(--text-2)}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px}
.card__link{font-size:14px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;transition:color .18s,gap .18s}
.card__link:hover{color:var(--amber);gap:10px}

.back-row{margin-top:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--divider);padding-top:28px}

/* ============ Toast ============ */
.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,14px);
  background:var(--ink);color:#F3EFE4;padding:12px 20px;border-radius:999px;font-size:14px;
  box-shadow:0 18px 40px -20px rgba(18,59,54,.7);opacity:0;pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;z-index:200;
}
.toast.is-visible{opacity:1;transform:translate(-50%,0)}

/* ============ Back to top ============ */
.to-top{
  position:fixed;right:26px;bottom:32px;width:46px;height:46px;border-radius:14px;
  border:1px solid var(--border);background:var(--surface);color:var(--ink);cursor:pointer;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-1);
  opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease,background .18s;
  z-index:120;
}
.to-top.is-visible{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}

/* ============ Footer ============ */
.site-footer{background:var(--ink);color:#C6D6D0;margin-top:96px;padding:72px 0 26px;font-size:15px;line-height:1.85}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:40px}
.site-footer .brand__mark{background:var(--bamboo);color:#FFFFFF}
.site-footer .brand__name{color:#F3EFE4}
.site-footer .brand__sub{color:#93ACA5}
.site-footer .brand{margin-bottom:18px}
.site-footer p{color:#A9BEB8;font-size:14.5px;line-height:1.9;max-width:38ch}
.site-footer h4{color:#F3EFE4;font-size:16px;margin-bottom:18px;font-weight:600;letter-spacing:.02em}
.site-footer li{margin-bottom:12px;font-size:14.5px}
.site-footer a{color:#C6D6D0;transition:color .18s}
.site-footer a:hover{color:var(--amber)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:#A9BEB8}
.footer-contact i{color:var(--bamboo);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:#8FA7A0;
}

/* ============ Responsive ============ */
@media (max-width:1024px){
  .container{padding:0 24px}
  .header-inner{gap:14px;padding:10px 0}
  .brand__sub{display:none}
  .nav-wrap{order:3;flex:1 1 100%;justify-content:flex-start}
  .chip-nav{justify-content:flex-start;padding-bottom:8px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .article-head h1{font-size:33px}
  .section{padding-top:66px}
}
@media (max-width:640px){
  body{font-size:16px;line-height:1.88}
  .container{padding:0 18px}
  .menu-toggle{display:flex}
  .nav-wrap{display:none;order:4;flex:1 1 100%}
  .nav-wrap.is-open{display:block;border-top:1px solid var(--border);padding-top:12px;margin-top:6px}
  .nav-wrap.is-open .chip-nav{flex-direction:column;overflow:visible;gap:6px;padding:0 0 12px}
  .nav-wrap.is-open .chip{width:100%;justify-content:flex-start;height:44px;border-radius:12px}
  .header-actions .btn{display:none}
  .breadcrumb{padding-top:20px;font-size:13px}
  .article-head{padding-top:20px}
  .article-head h1{font-size:28px;line-height:1.34}
  .article-head__lead{font-size:15.5px;padding-left:13px}
  .article-cover img{aspect-ratio:4/3}
  .article-body{margin-top:32px}
  .entry-content{font-size:16.5px;line-height:1.9}
  .entry-content h2{font-size:22px}
  .entry-content h3{font-size:18.5px}
  .card-grid{grid-template-columns:1fr;gap:16px}
  .share-bar{padding:20px 18px;flex-direction:column;align-items:stretch}
  .share-bar__actions .btn{flex:1 1 auto}
  .section{padding-top:56px}
  .section-head h2{font-size:24px}
  .to-top{right:16px;bottom:18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:64px;padding:52px 0 22px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .search-form{flex-direction:column;align-items:stretch}
  .search-form .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --ink:#123B36;
  --bamboo:#3F8F7A;
  --amber:#D9772B;
  --cinnabar:#B23A2E;
  --paper:#F7F4EC;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --text:#1D2523;
  --text-2:#5C6B66;
  --text-3:#8A948F;
  --border:#E3DED2;
  --divider:#D8D2C6;
  --r-card:16px;
  --r-btn:12px;
  --r-chip:999px;
  --sh-1:0 1px 2px rgba(18,59,54,.06);
  --sh-2:0 14px 34px -20px rgba(18,59,54,.35);
  --ease:180ms cubic-bezier(.4,0,.2,1);
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--amber);}
a:focus-visible,button:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0;line-height:1.3;letter-spacing:0;}
h1{font-size:44px;}
h2{font-size:30px;}
h3{font-size:21px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}

.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--bamboo);text-transform:uppercase;margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--amber);}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16.5px;}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,236,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px -18px rgba(18,59,54,.55);background:rgba(247,244,236,.98);}
.header-inner{
  display:flex;align-items:center;gap:22px;
  min-height:70px;padding-top:10px;padding-bottom:10px;
}
.brand{
  display:flex;align-items:center;gap:11px;
  font-family:var(--serif);font-size:19px;font-weight:700;color:var(--ink);
  white-space:nowrap;flex:0 0 auto;
}
.brand__mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(150deg,var(--ink),#1c5a51);
  color:#fff;font-family:var(--sans);font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;letter-spacing:.04em;
  box-shadow:var(--sh-1);
}
.brand__sub{
  display:block;font-family:var(--sans);font-size:11.5px;font-weight:400;
  color:var(--text-3);letter-spacing:.02em;line-height:1.4;
}
.chip-nav{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;flex:1 1 auto;
  padding:4px 2px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:var(--r-chip);
  border:1px solid var(--border);background:transparent;
  color:var(--text-2);font-size:14.5px;font-weight:500;
  white-space:nowrap;transition:all var(--ease);
}
.chip:hover{background:rgba(18,59,54,.08);color:var(--ink);border-color:rgba(18,59,54,.22);}
.chip.is-active{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600;}
.chip.is-active:hover{background:var(--bamboo);border-color:var(--bamboo);color:#fff;}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);background:var(--surface);
  color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;transition:all var(--ease);
}
.icon-btn:hover{color:var(--ink);border-color:rgba(63,143,122,.5);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:all var(--ease);border:1px solid transparent;
}
.btn--primary{background:var(--ink);color:#fff;box-shadow:var(--sh-1);}
.btn--primary:hover{background:var(--bamboo);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn--ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn--ghost:hover{background:rgba(18,59,54,.08);color:var(--ink);transform:translateY(-2px);}
.btn--light{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);color:#fff;}
.btn--light:hover{background:#fff;color:var(--ink);transform:translateY(-2px);}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px;}
.menu-toggle{display:none;}
@media (max-width:1024px){
  .header-actions .btn--primary{display:none;}
  .menu-toggle{display:inline-flex;}
}
@media (max-width:860px){
  .header-inner{flex-wrap:wrap;gap:12px;}
  .chip-nav{
    order:3;width:100%;flex:1 0 100%;
  }
}
@media (max-width:640px){
  .container{padding:0 18px;}
  .header-inner{min-height:64px;}
  .brand{font-size:17px;}
}

/* ============ hero ============ */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(105deg,rgba(11,42,38,.94) 0%,rgba(18,59,54,.82) 48%,rgba(18,59,54,.52) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  color:#fff;
  padding:74px 0 80px;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  border-radius:50%;border:1px solid rgba(255,255,255,.14);
  box-shadow:0 0 0 40px rgba(255,255,255,.05),0 0 0 92px rgba(255,255,255,.03);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:24px;flex-wrap:wrap;}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:var(--amber);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:#fff;font-weight:600;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:var(--r-chip);
  background:rgba(217,119,43,.2);border:1px solid rgba(217,119,43,.55);
  color:#F6D3B4;font-size:13px;font-weight:600;letter-spacing:.04em;
  margin-bottom:20px;
}
.hero h1{color:#fff;font-size:46px;line-height:1.24;margin-bottom:20px;}
.hero h1 em{font-style:normal;color:#F0B37E;}
.hero-sub{
  font-size:17.5px;line-height:1.9;color:rgba(255,255,255,.85);
  max-width:620px;margin-bottom:32px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px;}
.hero-facts{display:flex;gap:34px;flex-wrap:wrap;}
.hero-fact strong{display:block;font-family:var(--serif);font-size:26px;color:#fff;line-height:1.2;}
.hero-fact span{font-size:13.5px;color:rgba(255,255,255,.7);}
.hero-card{
  background:rgba(255,255,255,.97);
  border-radius:var(--r-card);
  padding:16px;box-shadow:0 26px 60px -30px rgba(0,0,0,.6);
  border:1px solid rgba(255,255,255,.6);
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;}
.hero-card__body{padding:18px 6px 6px;}
.hero-card__body h3{font-size:19px;margin-bottom:8px;}
.hero-card__body p{font-size:14.5px;color:var(--text-2);line-height:1.75;}
.hero-card__meta{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 0;}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero h1{font-size:38px;}
}
@media (max-width:640px){
  .hero{padding:44px 0 56px;background-image:linear-gradient(160deg,rgba(11,42,38,.95) 0%,rgba(18,59,54,.86) 100%),url("/assets/images/backpic/back-1.png");}
  .hero h1{font-size:29px;}
  .hero-sub{font-size:16px;}
  .hero-facts{gap:22px;}
  .hero-fact strong{font-size:22px;}
}

/* ============ badges ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;line-height:1;
  padding:6px 11px;border-radius:999px;
}
.badge--cat{background:rgba(63,143,122,.12);color:#2C6D5C;}
.badge--time{background:rgba(92,107,102,.1);color:var(--text-2);}
.badge--pick{background:rgba(217,119,43,.14);color:#A55A1A;}

/* ============ stat cards ============ */
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stat-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--sh-1);transition:all var(--ease);
}
.stat-card:hover{transform:translateY(-3px);border-color:rgba(63,143,122,.4);box-shadow:var(--sh-2);}
.stat-card__num{
  font-family:var(--serif);font-size:34px;line-height:1;color:var(--ink);margin-bottom:12px;
  display:flex;align-items:baseline;gap:4px;
}
.stat-card__num small{font-size:14px;font-family:var(--sans);color:var(--text-3);font-weight:500;}
.stat-card h3{font-size:17px;margin-bottom:8px;}
.stat-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
@media (max-width:1024px){.stat-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.stat-grid{grid-template-columns:1fr;gap:14px;}}

/* ============ alternating rows ============ */
.alt-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;
  border-top:1px solid var(--divider);
}
.alt-row:first-of-type{border-top:none;padding-top:0;}
.alt-row__media{position:relative;}
.alt-row__media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);border:1px solid var(--border);
  box-shadow:var(--sh-1);
}
.alt-row__index{
  position:absolute;left:-14px;top:-14px;
  width:54px;height:54px;border-radius:14px;
  background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:19px;font-weight:700;
  box-shadow:0 14px 30px -16px rgba(18,59,54,.7);
}
.alt-row--reverse .alt-row__media{order:2;}
.alt-row__body h2{font-size:27px;margin-bottom:14px;}
.alt-row__body > p{color:var(--text-2);font-size:16px;margin-bottom:20px;}
.point-list{display:grid;gap:12px;margin-bottom:22px;}
.point-list li{
  display:flex;gap:11px;align-items:flex-start;
  font-size:15.5px;color:var(--text);line-height:1.8;
}
.point-list li i{
  color:var(--bamboo);font-size:13px;margin-top:7px;flex:0 0 auto;
}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--amber);padding-bottom:3px;
  transition:all var(--ease);
}
.text-link:hover{color:var(--amber);gap:13px;}
@media (max-width:900px){
  .alt-row{grid-template-columns:1fr;gap:26px;padding:34px 0;}
  .alt-row--reverse .alt-row__media{order:0;}
  .alt-row__body h2{font-size:23px;}
}

/* ============ scene chips ============ */
.scene-wrap{display:flex;flex-wrap:wrap;gap:12px;}
.scene-tag{
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 18px;border-radius:var(--r-chip);
  background:var(--surface);border:1px solid var(--border);
  font-size:15px;color:var(--text);box-shadow:var(--sh-1);
  transition:all var(--ease);
}
.scene-tag i{color:var(--bamboo);font-size:14px;}
.scene-tag:hover{border-color:rgba(63,143,122,.45);transform:translateY(-2px);box-shadow:var(--sh-2);}

/* ============ timeline steps ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step;}
.step{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);position:relative;transition:all var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(63,143,122,.4);}
.step__no{
  width:36px;height:36px;border-radius:11px;
  background:rgba(217,119,43,.14);color:#A55A1A;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-weight:700;font-size:16px;margin-bottom:16px;
}
.step h3{font-size:18px;margin-bottom:9px;}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
@media (max-width:1024px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.steps{grid-template-columns:1fr;gap:14px;}}

/* ============ horizontal scroll ============ */
.scroll-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap;}
.scroll-strip{
  display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 72px)/4);
  gap:24px;overflow-x:auto;padding:4px 4px 22px;scroll-snap-type:x proximity;
  scrollbar-width:thin;
}
.scroll-strip::-webkit-scrollbar{height:6px;}
.scroll-strip::-webkit-scrollbar-thumb{background:var(--divider);border-radius:99px;}
.mini-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:all var(--ease);scroll-snap-align:start;
  display:flex;flex-direction:column;
}
.mini-card:hover{transform:translateY(-3px);border-color:rgba(63,143,122,.4);box-shadow:var(--sh-2);}
.mini-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.mini-card__body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.mini-card__body h3{font-size:17px;line-height:1.5;}
.mini-card__body p{font-size:14px;color:var(--text-2);line-height:1.75;}
.mini-card__meta{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:13px;color:var(--text-3);}
@media (max-width:1024px){.scroll-strip{grid-auto-columns:calc((100% - 24px)/2);}}
@media (max-width:640px){.scroll-strip{grid-auto-columns:80%;gap:14px;}}

/* ============ faq ============ */
.faq-list{display:grid;gap:14px;max-width:880px;}
.faq-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;transition:all var(--ease);
}
.faq-item:hover{background:rgba(18,59,54,.04);}
.faq-item[open]{border-color:rgba(63,143,122,.45);box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:14px;
  min-height:56px;padding:16px 22px;
  font-size:16.5px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"?";flex:0 0 auto;
  width:26px;height:26px;border-radius:9px;
  background:rgba(217,119,43,.14);color:#A55A1A;
  font-size:13px;font-weight:700;font-family:var(--sans);
  display:flex;align-items:center;justify-content:center;
}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  margin-left:auto;font-size:12px;color:var(--text-3);transition:transform var(--ease);
}
.faq-item[open] summary{font-weight:700;}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--amber);}
.faq-item__answer{
  padding:0 22px 20px 62px;font-size:15px;line-height:1.85;color:var(--text-2);
}
@media (max-width:640px){
  .faq-item__answer{padding:0 18px 18px 18px;}
  .faq-item summary{padding:14px 18px;font-size:15.5px;}
}

/* ============ share cta ============ */
.share-bar{
  background:var(--surface-2);
  border-top:1px solid var(--divider);border-bottom:1px solid var(--divider);
  padding:34px 0;
}
.share-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.share-bar__text strong{display:block;font-family:var(--serif);font-size:20px;color:var(--ink);margin-bottom:6px;}
.share-bar__text span{font-size:14.5px;color:var(--text-2);}
.share-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.8);padding:72px 0 30px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px;font-family:var(--serif);}
.site-footer p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.72);margin-top:18px;}
.site-footer .brand{color:#fff;font-size:18px;}
.site-footer .brand__mark{background:rgba(255,255,255,.12);color:#fff;}
.site-footer .brand__sub{color:rgba(255,255,255,.55);}
.site-footer ul{display:grid;gap:11px;}
.site-footer ul a{color:rgba(255,255,255,.78);font-size:14.5px;}
.site-footer ul a:hover{color:var(--amber);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.74);}
.footer-contact i{color:var(--amber);font-size:14px;margin-top:5px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}
@media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:34px;}}
@media (max-width:640px){
  .site-footer{padding:52px 0 24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* toast */
.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,120%);
  background:var(--ink);color:#fff;font-size:14px;
  padding:12px 22px;border-radius:999px;box-shadow:var(--sh-2);
  transition:transform 260ms cubic-bezier(.4,0,.2,1);z-index:200;
}
.toast.is-show{transform:translate(-50%,0);}

/* roulang page: category2 */
:root{
  --ky-ink:#123B36;
  --ky-bamboo:#3F8F7A;
  --ky-amber:#D9772B;
  --ky-cinnabar:#B23A2E;
  --ky-paper:#F7F4EC;
  --ky-surface:#FFFFFF;
  --ky-surface-2:#EFEAE0;
  --ky-text:#1D2523;
  --ky-text-2:#5C6B66;
  --ky-text-3:#8A948F;
  --ky-border:#E3DED2;
  --ky-divider:#D8D2C6;
  --r-card:16px;
  --r-btn:12px;
  --r-chip:999px;
  --shadow-1:0 1px 2px rgba(18,59,54,.06);
  --shadow-2:0 14px 34px -20px rgba(18,59,54,.35);
  --container:1200px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
}

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

html{scroll-behavior:smooth}

body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--ky-text);
  background:var(--ky-paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;display:block;height:auto}
a{color:var(--ky-ink);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--ky-amber)}
button{font-family:inherit}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;line-height:1.32}
h1,h2{font-family:var(--font-serif)}

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
  width:100%;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,244,236,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--ky-border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px -22px rgba(18,59,54,.55)}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:70px;
  position:relative;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-serif);
  font-size:19px;
  font-weight:700;
  color:var(--ky-ink);
  white-space:nowrap;
  flex:none;
}
.brand:hover{color:var(--ky-ink)}
.brand__mark{
  width:34px;height:34px;
  border-radius:10px;
  background:var(--ky-ink);
  color:#fff;
  display:grid;place-items:center;
  font-family:var(--font-sans);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  flex:none;
}
.brand__text{letter-spacing:0}

.chip-nav{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.chip-nav::-webkit-scrollbar{display:none}

.chip{
  flex:none;
  display:inline-flex;
  align-items:center;
  padding:9px 16px;
  min-height:38px;
  border:1px solid var(--ky-border);
  border-radius:var(--r-chip);
  background:#fff;
  color:var(--ky-text-2);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:all .18s ease;
}
.chip:hover{background:rgba(18,59,54,.08);color:var(--ky-ink);border-color:rgba(63,143,122,.55)}
.chip.is-active{background:var(--ky-ink);border-color:var(--ky-ink);color:#fff}
.chip.is-active:hover{background:var(--ky-bamboo);border-color:var(--ky-bamboo);color:#fff}
.chip:focus-visible{outline:2px solid var(--ky-amber);outline-offset:2px}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
  margin-left:auto;
}
.icon-btn{
  width:44px;height:44px;
  display:grid;place-items:center;
  border:1px solid var(--ky-border);
  border-radius:12px;
  background:#fff;
  color:var(--ky-ink);
  cursor:pointer;
  transition:all .18s ease;
}
.icon-btn:hover{background:rgba(18,59,54,.08);border-color:rgba(63,143,122,.55)}
.icon-btn:focus-visible{outline:2px solid var(--ky-amber);outline-offset:2px}

.menu-toggle{
  display:none;
  width:44px;height:44px;
  place-items:center;
  border:1px solid var(--ky-border);
  border-radius:12px;
  background:#fff;
  color:var(--ky-ink);
  cursor:pointer;
  transition:all .18s ease;
}
.menu-toggle:hover{background:rgba(18,59,54,.08)}
.menu-toggle:focus-visible{outline:2px solid var(--ky-amber);outline-offset:2px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:all .18s ease;
  text-align:center;
  line-height:1.2;
}
.btn--primary{background:var(--ky-ink);border-color:var(--ky-ink);color:#fff}
.btn--primary:hover{background:var(--ky-bamboo);border-color:var(--ky-bamboo);color:#fff;transform:translateY(-2px)}
.btn--ghost{background:transparent;border-color:var(--ky-ink);color:var(--ky-ink)}
.btn--ghost:hover{background:rgba(18,59,54,.08);color:var(--ky-ink);transform:translateY(-2px)}
.btn--sm{padding:9px 16px;font-size:14px;min-height:40px}
.btn--link{
  background:none;border:none;padding:0;min-height:auto;
  color:var(--ky-ink);
  font-weight:600;
  text-decoration:underline;
  text-underline-offset:5px;
  text-decoration-thickness:1px;
}
.btn--link:hover{color:var(--ky-amber)}
.btn:focus-visible{outline:2px solid var(--ky-amber);outline-offset:2px}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:5px;
  padding:4px 11px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  line-height:1.5;
}
.badge--cat{background:rgba(63,143,122,.13);color:#2F6F5E}
.badge--time{background:var(--ky-surface-2);color:var(--ky-text-2)}
.badge--hot{background:rgba(217,119,43,.15);color:#A85B18}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 40px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-80px;right:-60px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(18,59,54,.10);
  box-shadow:inset 0 0 0 42px rgba(63,143,122,.05), inset 0 0 0 92px rgba(18,59,54,.04);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}

.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ky-text-3);
  margin-bottom:20px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--ky-text-2);font-weight:600}
.breadcrumb a:hover{color:var(--ky-amber)}
.breadcrumb .sep{color:var(--ky-divider)}
.breadcrumb .current{color:var(--ky-text);font-weight:600}

.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(217,119,43,.13);
  color:#A85B18;
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(28px,4.4vw,46px);
  color:var(--ky-ink);
  margin-bottom:16px;
  max-width:20em;
}
.hero-lead{
  font-size:17px;
  color:var(--ky-text-2);
  max-width:46em;
  line-height:1.9;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
}

.hero-figure{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--ky-border);
  box-shadow:var(--shadow-1);
  background:var(--ky-surface-2);
}
.hero-figure img{
  width:100%;
  aspect-ratio:21/9;
  object-fit:cover;
}

/* ---------- Section shell ---------- */
.section{padding:64px 0}
.section--tight{padding:40px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(24px,3vw,31px);
  color:var(--ky-ink);
  margin-bottom:8px;
}
.section-head p{
  color:var(--ky-text-2);
  font-size:15px;
  margin:0;
  max-width:52em;
}
.section-kicker{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--ky-bamboo);
  margin-bottom:10px;
}

/* ---------- Layout grid ---------- */
.catalog .grid-x{
  margin-left:-12px;
  margin-right:-12px;
}
.catalog .grid-x > .cell{
  padding:0 12px;
}

/* ---------- Sidebar TOC ---------- */
.toc-card{
  position:sticky;
  top:96px;
  background:var(--ky-surface);
  border:1px solid var(--ky-border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  padding:22px 20px;
}
.toc-card h2{
  font-size:17px;
  font-family:var(--font-sans);
  color:var(--ky-ink);
  margin-bottom:6px;
}
.toc-card .toc-hint{
  font-size:13px;
  color:var(--ky-text-3);
  margin:0 0 16px;
  line-height:1.7;
}
.toc-toggle{
  display:none;
  width:100%;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  min-height:46px;
  padding:0 14px;
  border:1px solid var(--ky-border);
  border-radius:12px;
  background:var(--ky-surface-2);
  color:var(--ky-ink);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
}
.toc-toggle i{transition:transform .2s ease}
.toc-toggle[aria-expanded="true"] i{transform:rotate(180deg)}

.toc-list li + li{margin-top:2px}
.toc-list a{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:9px 10px;
  border-radius:10px;
  font-size:14px;
  color:var(--ky-text-2);
  font-weight:600;
  line-height:1.6;
  transition:all .18s ease;
}
.toc-list a:hover{background:rgba(18,59,54,.06);color:var(--ky-ink)}
.toc-list a .num{
  font-family:var(--font-serif);
  font-size:13px;
  color:var(--ky-text-3);
  flex:none;
  min-width:20px;
}
.toc-list a:hover .num{color:var(--ky-amber)}
.toc-foot{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--ky-divider);
  font-size:13px;
  color:var(--ky-text-3);
  line-height:1.75;
}

/* ---------- Numbered entry list ---------- */
.entry-list{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.entry{
  display:grid;
  grid-template-columns:78px 1fr;
  gap:20px;
  padding:24px 26px;
  background:var(--ky-surface);
  border:1px solid var(--ky-border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:all .2s ease;
  scroll-margin-top:100px;
}
.entry:hover{
  transform:translateY(-2px);
  border-color:rgba(63,143,122,.45);
  box-shadow:var(--shadow-2);
}
.entry__num{
  font-family:var(--font-serif);
  font-size:32px;
  line-height:1;
  font-weight:700;
  color:var(--ky-divider);
  transition:color .2s ease;
  padding-top:4px;
}
.entry:hover .entry__num{color:var(--ky-amber)}
.entry__body h3{
  font-size:21px;
  font-family:var(--font-sans);
  color:var(--ky-ink);
  margin-bottom:10px;
}
.entry__body p{
  color:var(--ky-text-2);
  font-size:15.5px;
  line-height:1.85;
  margin-bottom:14px;
  max-width:60em;
}
.entry__meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.entry__foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:12px;
  border-top:1px dashed var(--ky-divider);
}
.entry__foot .note{
  font-size:13px;
  color:var(--ky-text-3);
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{
  background:var(--ky-surface);
  border:1px solid var(--ky-border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .18s ease;
}
.faq-item:hover{border-color:rgba(63,143,122,.45)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:60px;
  padding:16px 22px;
  font-size:16.5px;
  font-weight:600;
  color:var(--ky-ink);
  transition:background-color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(18,59,54,.04)}
.faq-item summary i{
  flex:none;
  color:var(--ky-bamboo);
  font-size:14px;
  transition:transform .2s ease;
}
.faq-item[open] summary{font-weight:700;background:rgba(18,59,54,.04)}
.faq-item[open] summary i{transform:rotate(45deg);color:var(--ky-amber)}
.faq-answer{
  padding:0 22px 20px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--ky-text-2);
}
.faq-answer p{margin:0}

/* ---------- CTA bar ---------- */
.cta-bar{
  background:var(--ky-surface-2);
  border:1px solid var(--ky-border);
  border-radius:var(--r-card);
  padding:26px 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:22px;
  flex-wrap:wrap;
}
.cta-bar__text strong{
  display:block;
  font-family:var(--font-serif);
  font-size:20px;
  color:var(--ky-ink);
  margin-bottom:6px;
}
.cta-bar__text span{font-size:14.5px;color:var(--ky-text-2)}
.cta-bar__actions{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- Back to top ---------- */
.back-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--ky-ink);
  padding:10px 16px;
  border:1px solid var(--ky-border);
  border-radius:999px;
  background:#fff;
  transition:all .18s ease;
}
.back-top:hover{background:rgba(18,59,54,.08);border-color:rgba(63,143,122,.5);color:var(--ky-ink)}
.back-top-row{display:flex;justify-content:center;padding:8px 0 0}

/* ---------- Toast ---------- */
.toast{
  position:fixed;
  left:50%;
  bottom:32px;
  transform:translate(-50%,16px);
  background:var(--ky-ink);
  color:#fff;
  font-size:14px;
  padding:12px 20px;
  border-radius:12px;
  box-shadow:var(--shadow-2);
  opacity:0;
  pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;
  z-index:90;
  max-width:88vw;
  text-align:center;
}
.toast.is-visible{opacity:1;transform:translate(-50%,0)}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ky-ink);
  color:#DCE6E2;
  margin-top:24px;
  padding:56px 0 28px;
}
.site-footer .brand{color:#fff;font-size:18px;margin-bottom:16px}
.site-footer .brand:hover{color:#fff}
.site-footer .brand__mark{background:#fff;color:var(--ky-ink)}
.brand__sub{
  display:block;
  font-family:var(--font-sans);
  font-size:12.5px;
  font-weight:500;
  color:rgba(220,230,226,.7);
  letter-spacing:0;
  margin-top:2px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.site-footer p{
  font-size:14px;
  line-height:1.85;
  color:rgba(220,230,226,.78);
  margin:0;
  max-width:34em;
}
.site-footer h4{
  font-size:15px;
  color:#fff;
  margin-bottom:16px;
  font-family:var(--font-sans);
}
.site-footer ul li{margin-bottom:10px}
.site-footer ul a{
  color:rgba(220,230,226,.82);
  font-size:14px;
}
.site-footer ul a:hover{color:var(--ky-amber)}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:rgba(220,230,226,.82);
}
.footer-contact i{margin-top:5px;color:var(--ky-bamboo);font-size:13px}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:13px;
  color:rgba(220,230,226,.65);
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:56px 0}
  .entry{grid-template-columns:64px 1fr;padding:22px}
  .entry__num{font-size:27px}
  .toc-card{position:static;padding:18px}
  .toc-toggle{display:flex}
  .toc-list{display:none;margin-top:14px}
  .toc-list.is-open{display:block}
  .toc-hint{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}

@media (max-width:768px){
  body{font-size:16.5px;line-height:1.88}
  .container{padding:0 18px}
  .header-inner{
    height:auto;
    min-height:64px;
    flex-wrap:wrap;
    padding:9px 0;
    gap:12px;
  }
  .menu-toggle{display:grid}
  .header-actions .btn--sm{display:none}
  .chip-nav{
    display:none;
    position:absolute;
    top:100%;
    left:-18px;
    right:-18px;
    padding:12px 18px;
    background:#fff;
    border-bottom:1px solid var(--ky-border);
    box-shadow:0 18px 30px -24px rgba(18,59,54,.6);
    flex-wrap:nowrap;
    overflow-x:auto;
    order:4;
  }
  .chip-nav.is-open{display:flex}
  .page-hero{padding:32px 0 26px}
  .page-hero::before{display:none}
  .page-hero h1{font-size:clamp(26px,7vw,32px)}
  .hero-lead{font-size:16px}
  .hero-figure img{aspect-ratio:4/3}
  .section{padding:46px 0}
  .section-head{margin-bottom:24px}
  .entry{
    grid-template-columns:1fr;
    gap:12px;
    padding:20px 18px;
  }
  .entry__num{font-size:24px;padding-top:0}
  .entry__body h3{font-size:19px}
  .entry__foot{flex-direction:column;align-items:flex-start}
  .cta-bar{padding:22px 18px}
  .cta-bar__actions{width:100%}
  .cta-bar__actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

@media (max-width:520px){
  .brand{font-size:17px}
  .brand__mark{width:30px;height:30px;font-size:12px}
  .hero-actions .btn{width:100%}
  .page-hero h1{font-size:26px}
  .faq-item summary{padding:15px 16px;font-size:15.5px}
  .faq-answer{padding:0 16px 18px;font-size:15px}
}

/* roulang page: category4 */
:root{
  --ink:#123B36;
  --ink-soft:#1B4C46;
  --bamboo:#3F8F7A;
  --bamboo-soft:#6FAF9C;
  --amber:#D9772B;
  --cinnabar:#B23A2E;
  --paper:#F7F4EC;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --text:#1D2523;
  --text-2:#5C6B66;
  --text-3:#8A948F;
  --line:#E3DED2;
  --divider:#D8D2C6;
  --r-card:16px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(18,59,54,.06);
  --sh-2:0 14px 34px -20px rgba(18,59,54,.35);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0;}
a{color:var(--ink);text-decoration:none;transition:color 180ms ease,background-color 180ms ease,border-color 180ms ease;}
a:hover{color:var(--amber);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);letter-spacing:0;margin:0;}
h1{font-size:44px;line-height:1.28;font-weight:700;}
h2{font-size:30px;line-height:1.32;font-weight:700;}
h3{font-size:21px;line-height:1.4;font-weight:700;font-family:var(--sans);}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}

.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--bamboo);
  text-transform:uppercase;margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--amber);display:inline-block;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16.5px;margin:0;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,236,.9);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow 220ms ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(18,59,54,.5);}
.header-inner{
  min-height:72px;display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand__mark{
  width:40px;height:40px;border-radius:12px;background:var(--ink);color:#F3EFE4;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:15px;font-weight:700;letter-spacing:.02em;
  box-shadow:var(--sh-1);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__name{font-family:var(--serif);font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap;}
.brand__sub{font-size:12px;color:var(--text-3);white-space:nowrap;}

.chip-nav{
  display:flex;align-items:center;gap:8px;flex:1 1 auto;
  overflow-x:auto;scrollbar-width:none;padding:6px 2px;
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:38px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:transparent;
  font-size:14px;color:var(--text-2);white-space:nowrap;
  transition:background-color 180ms ease,color 180ms ease,border-color 180ms ease;
}
.chip:hover{background:rgba(18,59,54,.08);color:var(--ink);border-color:rgba(18,59,54,.22);}
.chip.is-active{background:var(--ink);border-color:var(--ink);color:#F7F4EC;font-weight:600;}
.chip.is-active:hover{background:var(--ink-soft);color:#F7F4EC;}

.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);display:flex;align-items:center;justify-content:center;
  font-size:15px;transition:background-color 180ms ease,border-color 180ms ease,color 180ms ease;
}
.icon-btn:hover{background:rgba(18,59,54,.08);border-color:rgba(18,59,54,.24);color:var(--ink);}
.menu-btn{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background-color 180ms ease,color 180ms ease,border-color 180ms ease,transform 180ms ease,box-shadow 180ms ease;
}
.btn--primary{background:var(--ink);color:#F7F4EC;}
.btn--primary:hover{background:var(--bamboo);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn--ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn--ghost:hover{background:rgba(18,59,54,.08);color:var(--ink);}
.btn--light{background:var(--surface);color:var(--ink);border-color:var(--line);}
.btn--light:hover{background:#fff;color:var(--amber);border-color:var(--amber);}
.btn--text{background:none;border:0;padding:0;color:var(--ink);font-weight:600;text-decoration:underline;text-underline-offset:5px;}
.btn--text:hover{color:var(--amber);}
.btn[disabled]{opacity:.45;cursor:not-allowed;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:22px;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--amber);}
.breadcrumb .sep{color:var(--divider);}
.breadcrumb .current{color:var(--text);font-weight:600;}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(120deg,rgba(18,59,54,.94) 0%,rgba(18,59,54,.80) 48%,rgba(18,59,54,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover,cover;
  background-position:center,center;
  color:#EFEAE0;
  padding:76px 0 64px;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle at 18% 22%,rgba(217,119,43,.16),transparent 42%),
                   radial-gradient(circle at 82% 78%,rgba(63,143,122,.20),transparent 46%);
  opacity:.9;
}
.hero .container{position:relative;z-index:2;}
.hero .breadcrumb,.hero .breadcrumb a,.hero .breadcrumb .current{color:rgba(239,234,224,.72);}
.hero .breadcrumb .current{color:#F7F4EC;}
.hero .breadcrumb a:hover{color:var(--amber);}
.hero h1{color:#FBF8F1;max-width:860px;margin-bottom:20px;}
.hero .lead{max-width:720px;font-size:17.5px;color:rgba(239,234,224,.86);margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero-actions .btn--primary{background:var(--amber);color:#fff;}
.hero-actions .btn--primary:hover{background:#C56A22;color:#fff;}
.hero-actions .btn--ghost{border-color:rgba(239,234,224,.5);color:#F7F4EC;}
.hero-actions .btn--ghost:hover{background:rgba(247,244,236,.12);color:#fff;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;}
.stat{
  background:rgba(247,244,236,.08);border:1px solid rgba(247,244,236,.22);
  border-radius:14px;padding:14px 20px;min-width:150px;
}
.stat b{display:block;font-family:var(--serif);font-size:24px;color:#FBF8F1;line-height:1.2;}
.stat span{font-size:13px;color:rgba(239,234,224,.72);}

/* ---------- 准备清单卡片 ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
  display:flex;flex-direction:column;overflow:hidden;height:100%;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(63,143,122,.4);}
.card__media{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2);}
.card__media img{width:100%;height:100%;object-fit:cover;}
.card__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.card__meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;
}
.tag--cat{background:rgba(63,143,122,.12);color:#2F6E5D;}
.tag--time{background:var(--surface-2);color:var(--text-2);}
.tag--hot{background:rgba(217,119,43,.14);color:#A85B1D;}
.card__title{font-size:18.5px;font-family:var(--sans);font-weight:700;color:var(--ink);line-height:1.45;margin:0;}
.card__desc{color:var(--text-2);font-size:15px;margin:0;line-height:1.8;}
.card__link{margin-top:auto;font-size:14px;font-weight:600;color:var(--bamboo);}
.card__link i{font-size:12px;margin-left:6px;transition:transform 180ms ease;display:inline-block;}
.card:hover .card__link i{transform:translateX(4px);}

.prep-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);height:100%;
  transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.prep-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(63,143,122,.4);}
.prep-card .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;background:rgba(217,119,43,.12);
  color:#A85B1D;font-family:var(--serif);font-weight:700;font-size:15px;margin-bottom:16px;
}
.prep-card h3{margin-bottom:10px;font-size:18px;}
.prep-card p{color:var(--text-2);font-size:15px;margin:0;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;max-width:1060px;margin:0 auto;padding:8px 0;}
.timeline::before{
  content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;
  transform:translateX(-1px);
  background:linear-gradient(180deg,rgba(217,119,43,.35),var(--divider) 18%,var(--divider) 82%,rgba(63,143,122,.35));
}
.tl-item{
  position:relative;display:grid;grid-template-columns:1fr 92px 1fr;
  align-items:start;margin-bottom:34px;
}
.tl-item:last-child{margin-bottom:0;}
.tl-node{
  grid-column:2;justify-self:center;position:relative;z-index:2;
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-weight:700;font-size:15px;
  border:2px solid var(--paper);box-shadow:0 0 0 1px var(--divider),var(--sh-1);
  background:var(--surface);color:var(--ink);
}
.tl-item:nth-child(odd) .tl-node{background:var(--amber);color:#fff;border-color:var(--paper);}
.tl-item:nth-child(even) .tl-node{background:var(--bamboo);color:#fff;}
.tl-card{
  grid-column:1;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--sh-1);
  transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.tl-item.is-right .tl-card{grid-column:3;}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(63,143,122,.4);}
.tl-card h3{margin-bottom:10px;font-size:19px;}
.tl-card > p{color:var(--text-2);font-size:15.5px;margin:0 0 14px;}
.tl-points{margin:0 0 16px;}
.tl-points li{
  position:relative;padding-left:20px;color:var(--text-2);font-size:14.5px;line-height:1.85;
}
.tl-points li::before{
  content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:2px;
  background:var(--bamboo);transform:rotate(45deg);
}
.tl-foot{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;}
.tl-foot .tag--time{font-size:12px;}

/* ---------- 图文交错 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.split + .split{margin-top:80px;}
.split__media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);}
.split__media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.split__body h2{font-size:27px;margin-bottom:16px;}
.split__body p{color:var(--text-2);font-size:16px;}
.split--reverse .split__media{order:2;}
.split--reverse .split__body{order:1;}
.split-list{margin:20px 0 22px;}
.split-list li{
  position:relative;padding-left:26px;color:var(--text-2);font-size:15.5px;margin-bottom:10px;
}
.split-list li i{position:absolute;left:0;top:5px;color:var(--amber);font-size:14px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-wrap .accordion{border:0;background:transparent;}
.faq-wrap .accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-wrap .accordion-title{
  border:0;background:transparent;padding:18px 56px 18px 24px;
  font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.6;min-height:56px;
  display:flex;align-items:center;position:relative;
  transition:background-color 180ms ease,color 180ms ease;
}
.faq-wrap .accordion-title:hover{background:rgba(18,59,54,.04);color:var(--ink);}
.faq-wrap .accordion-title::before{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--bamboo);transition:transform 200ms ease,color 200ms ease;
}
.faq-wrap .accordion-item.is-active .accordion-title{font-weight:700;background:rgba(18,59,54,.04);}
.faq-wrap .accordion-item.is-active .accordion-title::before{content:"\f068";color:var(--amber);}
.faq-wrap .accordion-content{
  padding:0 24px 22px;border:0;background:transparent;color:var(--text-2);font-size:15px;line-height:1.85;
}
.faq-wrap .accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA 条 ---------- */
.cta-bar{
  background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-bar .inner{
  display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
  padding:30px 0;
}
.cta-bar h3{font-family:var(--sans);font-size:18px;margin:0 0 6px;}
.cta-bar p{margin:0;color:var(--text-2);font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 返回目录 ---------- */
.back-strip{
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  border:1px dashed var(--divider);border-radius:var(--r-card);
  padding:24px 26px;background:rgba(255,255,255,.6);
}
.back-strip .txt{color:var(--text-2);font-size:15px;margin:0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(239,234,224,.78);padding:72px 0 28px;margin-top:0;}
.site-footer h4{
  color:#F7F4EC;font-family:var(--sans);font-size:15px;font-weight:700;
  margin:0 0 18px;letter-spacing:.02em;
}
.site-footer .brand__mark{background:rgba(247,244,236,.12);color:#F7F4EC;}
.site-footer .brand__name{color:#F7F4EC;}
.site-footer .brand__sub{color:rgba(239,234,224,.6);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-grid p{font-size:14.5px;line-height:1.9;color:rgba(239,234,224,.72);margin:18px 0 0;max-width:340px;}
.footer-grid ul li{margin-bottom:10px;}
.footer-grid ul li a{font-size:14.5px;color:rgba(239,234,224,.78);}
.footer-grid ul li a:hover{color:var(--amber);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(239,234,224,.72);}
.footer-contact li i{margin-top:6px;color:var(--amber);font-size:13px;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(239,234,224,.16);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(239,234,224,.55);
}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:14px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  opacity:0;visibility:hidden;transition:opacity 200ms ease,visibility 200ms ease,background-color 180ms ease,color 180ms ease;
}
.to-top.is-show{opacity:1;visibility:visible;}
.to-top:hover{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  h1{font-size:36px;}
  h2{font-size:26px;}
  .section{padding:76px 0;}
  .header-inner{flex-wrap:wrap;gap:14px;padding:10px 0;}
  .brand__sub{display:none;}
  .chip-nav{order:3;width:100%;flex:1 1 100%;padding-bottom:8px;}
  .header-actions{margin-left:auto;}
  .menu-btn{display:flex;}
  .split{gap:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .tl-item{grid-template-columns:1fr 76px 1fr;}
  .tl-card{padding:20px;}
}
@media screen and (max-width:860px){
  .timeline::before{left:23px;transform:none;}
  .tl-item{grid-template-columns:48px 1fr;margin-bottom:20px;}
  .tl-node{grid-column:1;justify-self:start;width:44px;height:44px;font-size:14px;}
  .tl-item .tl-card,
  .tl-item.is-right .tl-card{grid-column:2;margin-top:0;}
  .split{grid-template-columns:1fr;gap:24px;}
  .split--reverse .split__media{order:1;}
  .split--reverse .split__body{order:2;}
  .split + .split{margin-top:56px;}
}
@media screen and (max-width:640px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  h1{font-size:29px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .hero{padding:52px 0 46px;}
  .hero .lead{font-size:16px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 100%;}
  .stat{flex:1 1 calc(50% - 7px);min-width:0;padding:12px 14px;}
  .stat b{font-size:20px;}
  .cta-bar .inner{padding:24px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .back-strip{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:52px 0 22px;}
  .to-top{right:14px;bottom:16px;}
  .breadcrumb{font-size:12.5px;}
}

/* roulang page: category3 */
:root{
  --ink:#123B36;
  --bamboo:#3F8F7A;
  --amber:#D9772B;
  --cinnabar:#B23A2E;
  --paper:#F7F4EC;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --text:#1D2523;
  --text-2:#5C6B66;
  --text-3:#8A948F;
  --border:#E3DED2;
  --rule:#D8D2C6;
  --r-card:16px;
  --r-btn:12px;
  --r-chip:999px;
  --sh-1:0 1px 2px rgba(18,59,54,.06);
  --sh-2:0 14px 34px -20px rgba(18,59,54,.35);
  --font-ui:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --nav-h:68px;
}

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

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

body{
  margin:0;
  font-family:var(--font-ui);
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{
  font-family:var(--font-serif);
  font-weight:700;
  line-height:1.3;
  letter-spacing:.01em;
  color:var(--ink);
  margin:0;
}

h1{font-size:clamp(28px,3.6vw,44px);}
h2{font-size:clamp(23px,2.4vw,31px);}
h3{font-family:var(--font-ui);font-size:20px;font-weight:700;line-height:1.45;}
h4{font-family:var(--font-ui);font-size:15px;letter-spacing:.04em;}

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

a{color:var(--ink);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--amber);}

img{max-width:100%;display:block;border:0;}

ul,ol{margin:0;padding:0;list-style:none;}

button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}

input{font:inherit;}

a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:2px;
  border-radius:6px;
}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--surface-2);}
.section--paper-line{border-top:1px solid var(--border);}

.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--text-2);font-size:16px;margin:0;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--bamboo);
  margin-bottom:10px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  background:var(--amber);
  display:inline-block;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,244,236,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(18,59,54,.55);}

.header-inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:22px;
  min-height:var(--nav-h);
}

.brand{
  display:flex;
  align-items:center;
  gap:11px;
  color:var(--ink);
  font-family:var(--font-serif);
  font-size:19px;
  font-weight:700;
  line-height:1.15;
  flex:0 0 auto;
}
.brand:hover{color:var(--ink);}
.brand__mark{
  width:36px;
  height:36px;
  border-radius:11px;
  background:var(--ink);
  color:#fff;
  display:grid;
  place-items:center;
  font-family:var(--font-ui);
  font-size:13px;
  font-weight:700;
  letter-spacing:.05em;
  flex:0 0 auto;
}
.brand__sub{
  display:block;
  font-family:var(--font-ui);
  font-size:11px;
  font-weight:500;
  color:var(--text-3);
  letter-spacing:.02em;
  margin-top:2px;
}

.chip-nav{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  overflow-x:auto;
  padding:8px 2px;
  scrollbar-width:none;
}
.chip-nav::-webkit-scrollbar{display:none;}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 16px;
  border:1px solid var(--border);
  border-radius:var(--r-chip);
  background:transparent;
  color:var(--text-2);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{background:rgba(18,59,54,.08);color:var(--ink);border-color:var(--rule);}
.chip.is-active,.chip[aria-current="page"]{
  background:var(--ink);
  border-color:var(--ink);
  color:#fff;
  font-weight:600;
}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}

.icon-btn{
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  border:1px solid var(--border);
  border-radius:var(--r-btn);
  color:var(--text-2);
  background:var(--surface);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.icon-btn:hover{background:rgba(18,59,54,.08);color:var(--ink);border-color:var(--rule);}

.nav-toggle{display:none;}

.search-panel{
  display:none;
  border-top:1px solid var(--border);
  background:var(--surface);
}
.search-panel.is-open{display:block;}
.search-form{
  display:flex;
  gap:12px;
  align-items:center;
  padding:16px 0;
}
.search-form input[type="search"]{
  flex:1 1 auto;
  height:46px;
  padding:0 16px;
  border:1px solid var(--border);
  border-radius:var(--r-btn);
  background:var(--paper);
  color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form input[type="search"]::placeholder{color:var(--text-3);}
.search-form input[type="search"]:focus{
  outline:none;
  border-color:var(--ink);
  box-shadow:0 0 0 3px rgba(18,59,54,.12);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn--primary:hover{background:var(--bamboo);border-color:var(--bamboo);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px -16px rgba(18,59,54,.8);}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn--ghost:hover{background:rgba(18,59,54,.08);color:var(--ink);}
.btn--light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.4);}
.btn--light:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn--sm{min-height:38px;padding:8px 16px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--bamboo);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:color .18s ease,border-color .18s ease,gap .18s ease;
}
.link-more:hover{color:var(--amber);border-color:var(--amber);gap:12px;}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 0;
  color:#fff;
  background:var(--ink) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,rgba(18,59,54,.95) 0%,rgba(18,59,54,.87) 48%,rgba(18,59,54,.64) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-40px;
  top:-30px;
  width:420px;
  height:420px;
  opacity:.09;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220' viewBox='0 0 220 220'%3E%3Cg fill='none' stroke='%23FFFFFF' stroke-width='2'%3E%3Cpath d='M20 140c0-19 15-34 34-34 6-18 22-30 41-30 22 0 40 15 44 36 16 2 29 15 29 31'/%3E%3Cpath d='M70 180c0-15 12-27 27-27 4-14 16-23 31-23 16 0 30 11 34 26 12 2 21 12 21 24'/%3E%3C/g%3E%3C/svg%3E") no-repeat center/contain;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}

.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.72);
  margin-bottom:20px;
}
.crumbs a{color:rgba(255,255,255,.82);}
.crumbs a:hover{color:var(--amber);}
.crumbs span.sep{opacity:.5;}
.crumbs span.current{color:#fff;font-weight:600;}

.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-chip);
  background:rgba(217,119,43,.18);
  border:1px solid rgba(217,119,43,.5);
  color:#F4D3B4;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  margin-bottom:18px;
}

.page-hero h1{
  color:#fff;
  max-width:16em;
  margin-bottom:18px;
}

.hero-lead{
  max-width:44em;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
  margin-bottom:26px;
}

.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:40px;}

.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:14px 44px;
  padding:22px 0 8px;
  border-top:1px solid rgba(255,255,255,.18);
  max-width:760px;
}
.hero-stats .stat b{
  display:block;
  font-family:var(--font-serif);
  font-size:28px;
  font-weight:700;
  color:#fff;
  line-height:1.2;
}
.hero-stats .stat span{
  font-size:13px;
  color:rgba(255,255,255,.7);
}

.hero-figure{
  margin-top:44px;
  border-radius:var(--r-card) var(--r-card) 0 0;
  overflow:hidden;
  position:relative;
  box-shadow:0 -14px 44px -24px rgba(0,0,0,.75);
}
.hero-figure img{
  width:100%;
  aspect-ratio:21/9;
  object-fit:cover;
}
.hero-figure__tag{
  position:absolute;
  left:20px;
  bottom:18px;
  padding:7px 16px;
  border-radius:var(--r-chip);
  background:rgba(18,59,54,.78);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  backdrop-filter:blur(4px);
}

/* ---------- 筛选栏 ---------- */
.filter-bar{
  position:sticky;
  top:var(--nav-h);
  z-index:60;
  background:rgba(247,244,236,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
  padding:14px 0;
}
.filter-bar .container{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}
.filter-label{
  font-size:13px;
  font-weight:600;
  color:var(--text-3);
  letter-spacing:.06em;
  flex:0 0 auto;
}
.chip-row{
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  padding:4px 2px;
  scrollbar-width:none;
  flex:1 1 auto;
}
.chip-row::-webkit-scrollbar{display:none;}

/* ---------- 卡片网格 ---------- */
.card-grid{padding-top:8px;}

.data-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .2s ease,border-color .18s ease;
}
.data-card:hover{
  transform:translateY(-2px);
  border-color:rgba(63,143,122,.4);
  box-shadow:var(--sh-2);
}
.data-card__media{display:block;position:relative;overflow:hidden;}
.data-card__media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .4s ease;
}
.data-card:hover .data-card__media img{transform:scale(1.03);}
.data-card__body{
  padding:20px 22px 22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1 1 auto;
}
.data-card__title{margin:0;font-size:19px;}
.data-card__title a{color:var(--ink);}
.data-card__title a:hover{color:var(--bamboo);}
.data-card__desc{
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  margin:0;
}
.data-card__foot{margin-top:auto;padding-top:6px;}

.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px;
}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:var(--r-chip);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1.6;
}
.badge--cat{background:rgba(63,143,122,.14);color:#2F6E5E;}
.badge--time{background:#EFEAE0;color:var(--text-2);}
.badge--pick{background:rgba(217,119,43,.16);color:#A9581A;}

/* ---------- 位置分布数据卡 ---------- */
.matrix-card{
  height:100%;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:24px 22px;
  box-shadow:var(--sh-1);
  position:relative;
  transition:transform .18s ease,box-shadow .2s ease,border-color .18s ease;
}
.matrix-card:hover{transform:translateY(-2px);border-color:rgba(63,143,122,.4);box-shadow:var(--sh-2);}
.matrix-card__num{
  font-family:var(--font-serif);
  font-size:34px;
  font-weight:700;
  color:var(--amber);
  line-height:1.1;
  letter-spacing:0;
}
.matrix-card__num small{font-size:14px;color:var(--text-3);font-family:var(--font-ui);font-weight:500;margin-left:4px;}
.matrix-card h3{margin:12px 0 8px;font-size:18px;}
.matrix-card p{font-size:14px;color:var(--text-2);line-height:1.8;margin:0 0 14px;}
.matrix-card__index{
  position:absolute;
  right:18px;
  top:16px;
  font-family:var(--font-serif);
  font-size:13px;
  font-weight:700;
  color:var(--cinnabar);
  letter-spacing:.08em;
}

/* ---------- 图文交错 ---------- */
.split-figure{
  margin:0;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--border);
  background:var(--surface);
  box-shadow:var(--sh-1);
}
.split-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}

.split-body .eyebrow{margin-bottom:12px;}
.split-body h2{margin-bottom:14px;}
.split-body > p{color:var(--text-2);font-size:16px;}

.check-list{margin:20px 0 26px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:12px 0;
  border-bottom:1px dashed var(--rule);
  font-size:15.5px;
  color:var(--text-2);
  line-height:1.8;
}
.check-list li:last-child{border-bottom:0;}
.check-list i{
  color:var(--bamboo);
  margin-top:7px;
  flex:0 0 auto;
  font-size:13px;
}
.check-list b{color:var(--text);font-weight:600;}

/* ---------- 横向推荐 ---------- */
.rail-wrap{position:relative;}
.rail{
  display:flex;
  gap:24px;
  overflow-x:auto;
  padding:6px 4px 22px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:var(--rule);border-radius:999px;}
.rail > *{
  flex:0 0 296px;
  max-width:296px;
  scroll-snap-align:start;
}

.mini-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .2s ease,border-color .18s ease;
}
.mini-card:hover{transform:translateY(-2px);border-color:rgba(63,143,122,.4);box-shadow:var(--sh-2);}
.mini-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.mini-card__body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.mini-card h3{font-size:16.5px;margin:0;}
.mini-card p{font-size:14px;color:var(--text-2);line-height:1.75;margin:0;}
.mini-card .meta-row{margin-top:auto;padding-top:6px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:rgba(63,143,122,.45);}
.faq-item.is-open{border-color:rgba(63,143,122,.55);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:56px;
  padding:16px 22px;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  transition:background-color .18s ease;
}
.faq-q:hover{background:rgba(18,59,54,.04);}
.faq-item.is-open .faq-q{font-weight:700;}
.faq-q .q-index{
  font-family:var(--font-serif);
  font-size:14px;
  font-weight:700;
  color:var(--cinnabar);
  margin-right:12px;
}
.faq-q .q-text{flex:1 1 auto;}
.faq-q .q-icon{
  width:26px;
  height:26px;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  border-radius:50%;
  background:rgba(63,143,122,.14);
  color:var(--bamboo);
  font-size:12px;
  transition:transform .2s ease,background-color .18s ease;
}
.faq-item.is-open .q-icon{transform:rotate(180deg);background:rgba(217,119,43,.18);color:var(--amber);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a__inner{
  padding:0 22px 20px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- CTA 条 ---------- */
.cta-bar{
  background:var(--surface-2);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  padding:32px 0;
}
.cta-bar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.cta-bar h3{font-size:19px;margin-bottom:6px;}
.cta-bar p{font-size:14.5px;color:var(--text-2);margin:0;}
.cta-bar__actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.78);
  padding:64px 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
}
.site-footer h4{color:#fff;margin:0 0 16px;font-size:15px;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);margin:16px 0 0;}
.site-footer a{color:rgba(255,255,255,.78);font-size:14px;}
.site-footer a:hover{color:var(--amber);}
.site-footer ul li{margin-bottom:10px;}
.site-footer .brand{color:#fff;font-size:19px;}
.site-footer .brand:hover{color:#fff;}
.site-footer .brand__mark{background:var(--bamboo);}
.site-footer .brand__sub{color:rgba(255,255,255,.55);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.72);}
.footer-contact i{margin-top:5px;color:var(--amber);font-size:13px;}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);
  margin-top:44px;
  padding-top:20px;
  font-size:13px;
  color:rgba(255,255,255,.58);
}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;
  right:22px;
  bottom:22px;
  width:46px;
  height:46px;
  border-radius:50%;
  background:var(--ink);
  color:#fff;
  display:grid;
  place-items:center;
  box-shadow:var(--sh-2);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,background-color .18s ease;
  z-index:70;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--bamboo);color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:80px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hero-stats{gap:14px 32px;}
}

@media (max-width:900px){
  .nav-toggle{display:grid;}
  .chip-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:14px 18px 20px;
    background:var(--paper);
    border-bottom:1px solid var(--border);
    box-shadow:var(--sh-2);
    overflow:visible;
  }
  .chip-nav.is-open{display:flex;}
  .chip-nav .chip{justify-content:center;padding:12px 16px;}
  .header-actions .btn--primary{display:none;}
  .filter-bar{top:64px;}
}

@media (max-width:640px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .header-inner{gap:12px;min-height:64px;}
  .brand{font-size:16.5px;}
  .brand__mark{width:32px;height:32px;border-radius:9px;font-size:12px;}
  .brand__sub{font-size:10.5px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-figure img{aspect-ratio:4/3;}
  .hero-figure__tag{left:12px;bottom:12px;font-size:12px;padding:6px 12px;}
  .faq-q{padding:14px 16px;font-size:15.5px;}
  .faq-a__inner{padding:0 16px 18px 16px;}
  .cta-bar__inner{align-items:flex-start;}
  .cta-bar__actions{width:100%;}
  .cta-bar__actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .to-top{right:16px;bottom:16px;}
  .rail > *{flex:0 0 78vw;max-width:78vw;}
}