/* roulang page: index */
:root{
  --c-ink:#161A18;
  --c-ink-2:#5A6560;
  --c-ink-3:#8C948F;
  --c-primary:#143D34;
  --c-primary-2:#1E5A4C;
  --c-primary-3:#2F7A67;
  --c-accent:#C75B39;
  --c-accent-hover:#A9472B;
  --c-celadon:#7FA88F;
  --c-sand:#EADFCB;
  --c-bg:#FAF8F4;
  --c-bg-2:#F2EEE6;
  --c-line:rgba(20,61,52,.14);
  --r-sm:8px;--r-md:12px;--r-lg:18px;--r-xl:24px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(16,34,30,.05);
  --sh-2:0 1px 2px rgba(16,34,30,.05),0 14px 34px -18px rgba(16,34,30,.22);
  --sh-3:0 24px 60px -28px rgba(16,34,30,.30);
  --maxw:1200px;
  --gutter:24px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  background:var(--c-bg);color:var(--c-ink);
  font-family:var(--font-sans);font-size:16.5px;line-height:1.8;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;height:auto;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease,border-color .22s ease;}
a:hover{color:var(--c-accent);}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid rgba(199,91,57,.55);outline-offset:2px;border-radius:var(--r-sm);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;letter-spacing:-.01em;color:var(--c-ink);line-height:1.28;}
p{margin:0;}
time,.num,table,.stat-v{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter);}
.section{padding:var(--sec-y) 0;}
.section--tint{background:var(--c-bg-2);}
.section--line{border-top:1px solid var(--c-line);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;color:var(--c-primary-3);text-transform:none;margin-bottom:14px;font-weight:600;}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--c-primary-3);display:block;}
.sec-head h2{font-size:clamp(26px,3.4vw,40px);}
.sec-sub{margin-top:16px;color:var(--c-ink-2);font-size:15.5px;line-height:1.85;}
.h3{font-size:21px;font-family:var(--font-serif);font-weight:700;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-sm);font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;background:transparent;transition:all .22s ease;white-space:nowrap;}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn--primary:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.16);}
.btn--ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn--ghost:hover{background:var(--c-primary);color:#fff;transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(0);}
.btn--quiet{color:var(--c-primary);padding:8px 2px;border:0;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.btn--quiet:hover{color:var(--c-accent);}
.btn--sm{padding:11px 20px;font-size:14px;}
.btn--block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none!important;box-shadow:none;}
.btn--light{background:#fff;color:var(--c-primary);}
.btn--light:hover{background:var(--c-sand);color:var(--c-primary);transform:translateY(-1px);}
.btn--outline-light{border-color:rgba(255,255,255,.55);color:#fff;}
.btn--outline-light:hover{background:#fff;color:var(--c-primary);border-color:#fff;}

/* ---------- badge / tag ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-sand);color:var(--c-primary);font-size:13px;font-weight:600;line-height:1.5;}
.badge--celadon{background:transparent;border:1px solid var(--c-celadon);color:var(--c-primary-2);}
.badge--accent{background:transparent;border:1px solid var(--c-accent);color:var(--c-accent);}
.tags{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- header / nav ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:90;background:#fff;border-bottom:1px solid var(--c-line);
  transition:background .28s ease,box-shadow .28s ease,backdrop-filter .28s ease;}
.site-header.is-scrolled{background:rgba(250,248,244,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 1px 0 rgba(20,61,52,.10),0 12px 30px -24px rgba(16,34,30,.35);}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:76px;transition:height .28s ease;}
.site-header.is-scrolled .nav{height:64px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand__mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;display:grid;place-items:center;
  font-family:var(--font-serif);font-size:14px;font-weight:700;letter-spacing:0;}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__name{font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:0;}
.brand__sub{font-size:11.5px;color:var(--c-ink-3);letter-spacing:.06em;}
.nav__pills{display:flex;align-items:center;gap:4px;padding:5px;border-radius:var(--r-pill);background:var(--c-bg-2);}
.nav__pill{padding:9px 18px;border-radius:var(--r-pill);font-size:14.5px;font-weight:600;color:var(--c-ink-2);line-height:1.4;}
.nav__pill:hover{color:var(--c-primary);background:rgba(255,255,255,.7);}
.nav__pill.is-active{background:var(--c-sand);color:var(--c-primary);}
.nav__actions{display:flex;align-items:center;gap:16px;flex-shrink:0;}
.nav__quiet{font-size:14.5px;font-weight:600;color:var(--c-ink-2);text-decoration:underline;text-underline-offset:4px;}
.nav__quiet:hover{color:var(--c-accent);}
.nav__burger{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;position:relative;}
.nav__burger span{position:absolute;left:12px;right:12px;height:1.6px;background:var(--c-primary);border-radius:2px;transition:.25s ease;}
.nav__burger span:nth-child(1){top:16px;}
.nav__burger span:nth-child(2){top:21px;}
.nav__burger span:nth-child(3){top:26px;}

.drawer{position:fixed;inset:0;z-index:120;background:var(--c-bg);display:flex;flex-direction:column;
  transform:translateY(-102%);transition:transform .42s cubic-bezier(.22,.61,.36,1);}
.drawer.is-open{transform:translateY(0);}
.drawer__top{display:flex;align-items:center;justify-content:space-between;padding:18px var(--gutter);border-bottom:1px solid var(--c-line);}
.drawer__close{width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;
  color:var(--c-primary);font-size:22px;line-height:1;}
.drawer__nav{padding:34px var(--gutter) 24px;flex:1;overflow-y:auto;}
.drawer__link{display:block;font-family:var(--font-serif);font-size:clamp(26px,7vw,34px);font-weight:700;color:var(--c-ink);
  padding:20px 0;border-bottom:1px solid var(--c-line);}
.drawer__link.is-active{color:var(--c-accent);}
.drawer__note{margin-top:26px;color:var(--c-ink-2);font-size:14px;line-height:1.8;}
.drawer__foot{padding:18px var(--gutter) 28px;border-top:1px solid var(--c-line);background:#fff;}

/* ---------- hero ---------- */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;padding:140px 0 80px;
  background-image:linear-gradient(115deg,rgba(20,61,52,.90) 0%,rgba(20,61,52,.74) 52%,rgba(20,61,52,.62) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;color:#fff;overflow:hidden;}
.hero::after{content:"";position:absolute;inset:auto 0 0 0;height:1px;background:rgba(255,255,255,.16);}
.hero__inner{position:relative;z-index:2;max-width:860px;}
.hero__eyebrow{display:inline-flex;align-items:center;gap:10px;padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.34);font-size:13px;color:rgba(255,255,255,.92);margin-bottom:24px;}
.hero h1{color:#fff;font-size:clamp(34px,5.2vw,60px);line-height:1.2;}
.hero__lead{margin-top:22px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:660px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;}
.hero__stats{display:flex;flex-wrap:wrap;gap:0;margin-top:52px;border-top:1px solid rgba(255,255,255,.22);padding-top:26px;}
.hero__stat{padding-right:46px;margin-right:46px;border-right:1px solid rgba(255,255,255,.18);}
.hero__stat:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero__stat dt{font-size:13px;color:rgba(255,255,255,.68);margin-bottom:6px;}
.hero__stat dd{margin:0;font-family:var(--font-serif);font-size:26px;font-weight:700;color:#fff;}

/* ---------- table ---------- */
.table-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);}
.table-wrap{overflow-x:auto;}
table.compare{width:100%;border-collapse:collapse;min-width:660px;}
table.compare th,table.compare td{padding:20px 22px;text-align:left;font-size:15px;border-bottom:1px solid var(--c-line);vertical-align:middle;}
table.compare thead th{position:sticky;top:0;background:var(--c-bg-2);font-family:var(--font-serif);font-size:16px;
  color:var(--c-ink);font-weight:700;z-index:2;border-bottom:1px solid var(--c-line);}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare tbody tr:hover{background:rgba(234,223,203,.22);}
table.compare td:first-child{color:var(--c-ink-2);font-weight:600;}
table.compare .col-best{background:rgba(234,223,203,.45);position:relative;}
table.compare thead .col-best::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--c-accent);}
table.compare .rec{display:block;font-size:12.5px;color:var(--c-accent);font-weight:600;margin-top:4px;font-family:var(--font-sans);}
.mark{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;font-size:13px;font-weight:700;}
.mark--yes{background:rgba(127,168,143,.22);color:#2F7A67;}
.mark--no{background:var(--c-bg-2);color:var(--c-ink-3);}
.table-foot{padding:16px 22px;background:var(--c-bg-2);font-size:13.5px;color:var(--c-ink-2);border-top:1px solid var(--c-line);}

/* ---------- levels ---------- */
.levels{display:flex;flex-direction:column;gap:26px;}
.level{position:relative;display:grid;grid-template-columns:280px 1fr;gap:0;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;}
.level:hover{border-color:var(--c-primary-3);transform:translateY(-2px);box-shadow:var(--sh-2);}
.level:nth-child(1){margin-right:9%;}
.level:nth-child(2){margin-left:6%;margin-right:3%;}
.level:nth-child(3){margin-left:12%;}
.level:nth-child(4){margin-left:3%;margin-right:6%;}
.level__no{padding:34px 30px;background:var(--c-primary);color:#fff;display:flex;flex-direction:column;justify-content:space-between;}
.level:nth-child(2) .level__no{background:var(--c-primary-2);}
.level:nth-child(3) .level__no{background:var(--c-primary-3);}
.level:nth-child(4) .level__no{background:var(--c-celadon);}
.level__no b{font-family:var(--font-serif);font-size:56px;line-height:1;font-weight:700;display:block;}
.level__no small{font-size:13px;color:rgba(255,255,255,.8);letter-spacing:.08em;}
.level__body{padding:30px 34px;}
.level__body h3{font-size:22px;margin-bottom:10px;}
.level__body p{color:var(--c-ink-2);font-size:15.5px;}
.level__list{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}

/* ---------- preview split ---------- */
.split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:44px;align-items:start;}
.filter-panel{position:sticky;top:110px;}
.filter-panel h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;}
.filter-panel p{color:var(--c-ink-2);font-size:15.5px;}
.filter-list{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;}
.filter-pill{padding:9px 16px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;
  font-size:14px;font-weight:600;color:var(--c-ink-2);}
.filter-pill:hover{border-color:var(--c-primary-3);color:var(--c-primary);}
.filter-pill.is-active{background:var(--c-sand);border-color:var(--c-sand);color:var(--c-primary);}
.preview-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.p-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;position:relative;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;}
.p-card:hover{border-color:var(--c-primary-3);transform:translateY(-2px);box-shadow:var(--sh-2);}
.p-card__link{display:block;color:inherit;padding:0;height:100%;}
.p-card__link:hover{color:inherit;}
.p-card__media{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-2);border-bottom:1px solid var(--c-line);}
.p-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .45s cubic-bezier(.22,.61,.36,1);}
.p-card:hover .p-card__media img{transform:scale(1.03);}
.p-card__body{padding:20px 22px 22px;}
.p-card__body h3{font-size:18px;margin:12px 0 8px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.p-card:hover .p-card__body h3{color:var(--c-primary);}
.p-card__body p{color:var(--c-ink-2);font-size:14.5px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.p-card__meta{margin-top:14px;font-size:13px;color:var(--c-ink-3);}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.news-item{display:grid;grid-template-columns:96px 1fr;gap:0;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;}
.news-item:hover{border-color:var(--c-celadon);transform:translateY(-2px);box-shadow:var(--sh-2);}
.news-item__rail{background:var(--c-bg-2);border-right:1px solid var(--c-line);padding:22px 12px;text-align:center;}
.news-item__rail time{display:block;font-size:13px;color:var(--c-ink-2);font-weight:600;}
.news-item__rail span{display:block;margin-top:10px;font-size:12px;color:var(--c-ink-3);}
.news-item__body{padding:22px 24px;}
.news-item__body h3{font-size:18px;margin:12px 0 10px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item:hover h3{color:var(--c-primary);}
.news-item__body p{color:var(--c-ink-2);font-size:14.5px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item__more{display:inline-block;margin-top:14px;font-size:13.5px;font-weight:600;color:var(--c-primary);
  text-decoration:underline;text-underline-offset:4px;}
.news-item__more:hover{color:var(--c-accent);}
.news-item__link{position:absolute;inset:0;}
.empty{grid-column:1/-1;text-align:center;padding:56px 24px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);}
.empty__pic{width:88px;height:88px;margin:0 auto 18px;border-radius:var(--r-md);background:var(--c-bg-2);
  border:1px solid var(--c-line);display:grid;place-items:center;color:var(--c-ink-3);font-family:var(--font-serif);font-size:24px;}
.empty p{color:var(--c-ink-2);font-size:15px;margin-bottom:18px;}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:56px;align-items:start;}
.faq-side h2{font-size:clamp(24px,3vw,34px);}
.faq-side p{margin-top:16px;color:var(--c-ink-2);font-size:15.5px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{border:1px solid var(--c-line);border-radius:var(--r-md);background:#fff;overflow:hidden;position:relative;
  transition:border-color .25s ease;}
.faq-item.is-open{border-color:var(--c-primary-3);}
.faq-item.is-open::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--c-accent);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;
  padding:20px 24px;background:transparent;border:0;font-size:16.5px;font-weight:600;color:var(--c-ink);font-family:var(--font-sans);}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{flex-shrink:0;width:22px;height:22px;position:relative;transition:transform .28s cubic-bezier(.22,.61,.36,1);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;}
.faq-icon::before{left:0;right:0;top:10px;height:1.5px;}
.faq-icon::after{top:0;bottom:0;left:10px;width:1.5px;transition:opacity .28s ease;}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-item.is-open .faq-icon{transform:rotate(90deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s cubic-bezier(.22,.61,.36,1);}
.faq-a__inner{padding:0 24px 22px;color:var(--c-ink-2);font-size:15.5px;line-height:1.85;}

/* ---------- cta ---------- */
.cta-band{background:var(--c-primary);color:#fff;position:relative;overflow:hidden;padding:96px 0;text-align:center;}
.cta-band::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;opacity:.7;}
.cta-band__inner{position:relative;z-index:2;max-width:700px;margin:0 auto;}
.cta-band h2{color:#fff;font-size:clamp(26px,3.4vw,40px);}
.cta-band p{margin-top:16px;color:rgba(255,255,255,.82);font-size:16px;line-height:1.85;}
.cta-band .btn{margin-top:34px;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary);color:rgba(255,255,255,.78);padding:72px 0 28px;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.16);}
.footer-brand .brand__mark{background:#fff;color:var(--c-primary);}
.footer-brand .brand__name{color:#fff;}
.footer-brand .brand__sub{color:rgba(255,255,255,.6);}
.footer-brand p{margin-top:18px;line-height:1.85;color:rgba(255,255,255,.7);max-width:340px;font-size:14px;}
.footer-col h4{color:#fff;font-family:var(--font-serif);font-size:16px;margin-bottom:18px;}
.footer-col li{margin-bottom:11px;}
.footer-col a{color:rgba(255,255,255,.76);font-size:14.5px;}
.footer-col a:hover{color:var(--c-sand);}
.footer-bottom{padding-top:24px;display:flex;flex-wrap:wrap;gap:12px 26px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.56);}
.footer-bottom a{color:rgba(255,255,255,.66);}
.footer-bottom a:hover{color:var(--c-sand);}

/* ---------- form ---------- */
.form-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;color:var(--c-ink-2);margin-bottom:8px;font-weight:600;}
.field input,.field select{width:100%;height:48px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:var(--c-bg);font-family:inherit;font-size:15px;color:var(--c-ink);transition:border-color .2s ease,box-shadow .2s ease;}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-primary-3);box-shadow:0 0 0 3px rgba(47,122,103,.14);}
.field--error input{border-color:var(--c-accent);}
.field__msg{margin-top:7px;font-size:13px;color:var(--c-accent);}
.field__msg--ok{color:var(--c-primary-3);}

/* ---------- misc ---------- */
.skeleton{background:linear-gradient(90deg,var(--c-bg-2) 25%,#e9e4da 37%,var(--c-bg-2) 63%);
  background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:var(--r-sm);}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}
.reveal{opacity:0;transform:translateY(12px);}
.reveal.is-in{opacity:1;transform:none;transition:opacity .46s cubic-bezier(.22,.61,.36,1),transform .46s cubic-bezier(.22,.61,.36,1);}
.divider{height:1px;background:var(--c-line);margin:0;}
.prose-note{font-size:13.5px;color:var(--c-ink-3);}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}

@media (max-width:1279px){
  :root{--sec-y:80px;}
  .level:nth-child(n){margin-left:0;margin-right:0;}
  .level{grid-template-columns:230px 1fr;}
  .split{gap:34px;}
}
@media (max-width:1023px){
  :root{--sec-y:72px;}
  .nav__pills{display:none;}
  .nav__actions .nav__quiet{display:none;}
  .nav__burger{display:block;}
  .split{grid-template-columns:1fr;}
  .filter-panel{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:767px){
  :root{--sec-y:56px;--gutter:18px;}
  body{font-size:16px;}
  .hero{min-height:64vh;padding:120px 0 60px;}
  .hero__stats{gap:20px 0;}
  .hero__stat{padding-right:26px;margin-right:26px;}
  .levels{gap:18px;}
  .level{grid-template-columns:1fr;}
  .level__no{flex-direction:row;align-items:center;gap:16px;padding:22px 24px;}
  .level__no b{font-size:40px;}
  .level__body{padding:24px;}
  .preview-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:30px;}
  .cta-band{padding:72px 0;}
  .site-footer{padding:56px 0 24px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .news-item{grid-template-columns:78px 1fr;}
}
@media (max-width:560px){
  .hero h1{font-size:clamp(28px,8vw,36px);}
  .hero__actions .btn{width:100%;}
  .cta-band .btn{width:100%;}
  .level__list{flex-direction:column;align-items:flex-start;}
  .footer-bottom{flex-direction:column;}
}
@media print{
  .site-header,.drawer,.cta-band,.nav__actions{display:none!important;}
  body{background:#fff;color:#000;}
  .section{padding:24px 0;}
}

/* roulang page: article */
:root{
  --c-ink:#161A18;
  --c-ink-2:#5A6560;
  --c-ink-3:#8C948F;
  --c-primary:#143D34;
  --c-primary-2:#1E5A4C;
  --c-primary-3:#2F7A67;
  --c-accent:#C75B39;
  --c-accent-hover:#A9472B;
  --c-celadon:#7FA88F;
  --c-sand:#EADFCB;
  --c-bg:#FAF8F4;
  --c-bg-2:#F2EEE6;
  --c-line:rgba(20,61,52,.14);
  --c-line-strong:rgba(20,61,52,.26);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,34,30,.05);
  --sh-2:0 1px 2px rgba(16,34,30,.05),0 14px 34px -18px rgba(16,34,30,.22);
  --sh-3:0 24px 60px -28px rgba(16,34,30,.30);
  --maxw:1200px;
  --gutter:24px;
  --font-serif:"Noto Serif SC","思源宋体","Songti SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-accent);}
button{font:inherit;color:inherit;}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;letter-spacing:-.01em;margin:0;line-height:1.3;color:var(--c-ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
figure{margin:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid rgba(199,91,57,.55);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter);}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,244,.96);
  border-bottom:1px solid var(--c-line);
  transition:background .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(250,248,244,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 10px 30px -24px rgba(16,34,30,.45);
}
.nav{display:flex;align-items:center;gap:20px;height:78px;transition:height .28s var(--ease);}
.is-scrolled .nav{height:66px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--r-md);
  background:var(--c-primary);color:#F6F1E6;
  font-family:var(--font-serif);font-size:16px;font-weight:700;letter-spacing:.02em;
}
.brand__text{display:flex;flex-direction:column;line-height:1.18;}
.brand__name{font-family:var(--font-serif);font-size:16px;font-weight:700;}
.brand__sub{font-size:11.5px;color:var(--c-ink-3);letter-spacing:.04em;}
.nav__pills{display:flex;align-items:center;gap:6px;margin-left:auto;padding:5px;background:var(--c-bg-2);border-radius:var(--r-pill);border:1px solid var(--c-line);}
.nav__pill{padding:8px 16px;border-radius:var(--r-pill);font-size:14.5px;color:var(--c-ink-2);white-space:nowrap;}
.nav__pill:hover{color:var(--c-primary);background:#fff;}
.nav__pill.is-active{background:var(--c-sand);color:var(--c-primary);font-weight:600;}
.nav__actions{display:flex;align-items:center;gap:12px;}
.nav__quiet{font-size:14.5px;color:var(--c-ink-2);}
.nav__quiet:hover{color:var(--c-accent);}
.nav__burger{display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-sm);cursor:pointer;padding:0;position:relative;}
.nav__burger span{display:block;width:18px;height:1.6px;background:var(--c-primary);margin:4px auto;transition:transform .28s var(--ease),opacity .28s var(--ease);}
.nav__burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5.6px) rotate(45deg);}
.nav__burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav__burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-sm);border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn--primary{background:var(--c-accent);color:#fff;}
.btn--primary:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18);}
.btn--ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn--ghost:hover{background:var(--c-primary);color:#F6F1E6;}
.btn--quiet{padding:0;border:0;background:none;color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.btn--quiet:hover{color:var(--c-accent);background:none;}
.btn--sm{padding:10px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--c-bg);
  transform:translateY(-100%);transition:transform .34s var(--ease);
  display:flex;flex-direction:column;padding:22px var(--gutter) 28px;
  visibility:hidden;
}
.drawer.is-open{transform:translateY(0);visibility:visible;}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer__close{width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:#fff;cursor:pointer;font-size:20px;line-height:1;color:var(--c-primary);}
.drawer__nav{display:flex;flex-direction:column;gap:4px;}
.drawer__nav a{
  font-family:var(--font-serif);font-size:29px;font-weight:700;color:var(--c-primary);
  padding:14px 0;border-bottom:1px solid var(--c-line);
}
.drawer__nav a:hover{color:var(--c-accent);}
.drawer__nav a.is-active{color:var(--c-accent);}
.drawer__foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px;}
.drawer__note{font-size:13px;color:var(--c-ink-3);}

/* ---------- page shell ---------- */
.page-head{
  padding:44px 0 8px;
  background:linear-gradient(180deg,var(--c-bg-2),var(--c-bg));
  border-bottom:1px solid var(--c-line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);margin-bottom:20px;}
.breadcrumb a{color:var(--c-ink-2);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb .sep{color:var(--c-ink-3);}
.breadcrumb .now{color:var(--c-ink-3);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  background:var(--c-sand);color:var(--c-primary);
  font-size:13px;font-weight:600;letter-spacing:.01em;
}
.badge--line{background:transparent;border:1px solid var(--c-celadon);color:var(--c-primary-2);}
.badge--accent{background:transparent;border:1px solid var(--c-accent);color:var(--c-accent);}
.article-head{max-width:900px;padding-bottom:34px;}
.article-head h1{
  font-size:clamp(30px,4vw,46px);
  margin:16px 0 18px;
  line-height:1.26;
}
.article-lead{font-size:16.5px;color:var(--c-ink-2);max-width:760px;}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:22px;font-size:13.5px;color:var(--c-ink-3);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-dot{width:5px;height:5px;border-radius:50%;background:var(--c-celadon);display:inline-block;}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:48px;padding:52px 0 88px;
}
@media(min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:56px;}
}
.article-main{min-width:0;}
.cover{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);
  background:var(--c-bg-2);margin-bottom:12px;
}
.cover img{width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:0;}
.cover-cap{font-size:13px;color:var(--c-ink-3);text-align:center;margin-bottom:42px;}

/* ---------- article body ---------- */
.article-body{
  max-width:760px;margin:0 auto;
  font-size:17px;line-height:1.85;color:var(--c-ink);
}
.article-body > * + *{margin-top:1.15em;}
.article-body p{margin:0;}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);
  margin:48px 0 16px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;
  background:var(--c-celadon);border-radius:2px;
}
.article-body h3{font-size:22px;margin:34px 0 12px;}
.article-body h4{font-size:18px;margin:26px 0 10px;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;text-decoration-color:rgba(199,91,57,.5);}
.article-body a:hover{color:var(--c-accent);}
.article-body ul,.article-body ol{padding-left:4px;list-style:none;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin:10px 0;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.78em;width:6px;height:6px;border-radius:50%;background:var(--c-accent);
}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;}
.article-body ol li::before{
  content:counter(li) ".";position:absolute;left:0;top:0;
  color:var(--c-accent);font-weight:700;font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:var(--c-bg-2);border-left:3px solid var(--c-sand);
  border-radius:0 var(--r-md) var(--r-md) 0;color:var(--c-ink-2);
}
.article-body img{margin:26px auto;border-radius:var(--r-md);border:1px solid var(--c-line);}
.article-body figure figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:10px;}
.article-body table{
  margin:26px 0;font-size:15px;display:block;overflow-x:auto;white-space:nowrap;
  border:1px solid var(--c-line);border-radius:var(--r-md);
}
.article-body thead th{background:var(--c-bg-2);color:var(--c-primary);font-weight:600;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--c-line);text-align:left;}
.article-body tr:last-child td{border-bottom:0;}
.article-body pre{
  margin:26px 0;padding:18px;background:#12211D;color:#E7EDE9;border-radius:var(--r-md);
  overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body code{font-family:"SFMono-Regular",Consolas,monospace;font-size:.92em;}
.article-body p code,.article-body li code{background:var(--c-bg-2);padding:2px 6px;border-radius:6px;color:var(--c-primary-2);}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0;}

/* ---------- tail ---------- */
.tail{max-width:760px;margin:52px auto 0;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;padding-top:26px;border-top:1px solid var(--c-line);}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-bg-2);border:1px solid var(--c-line);
  font-size:13px;color:var(--c-ink-2);
}
.tag:hover{border-color:var(--c-primary-3);color:var(--c-primary);}
.tail-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.empty-state{
  max-width:760px;margin:0 auto;text-align:center;
  padding:64px 28px;background:var(--c-bg-2);
  border:1px solid var(--c-line);border-radius:var(--r-lg);
}
.empty-state__icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-ink-3);
  font-family:var(--font-serif);font-size:24px;
}
.empty-state h2{font-size:24px;margin-bottom:10px;}
.empty-state p{color:var(--c-ink-2);font-size:15px;margin-bottom:22px;}

/* ---------- toc ---------- */
.toc{display:none;}
@media(min-width:1280px){
  .toc{display:block;position:relative;}
  .toc__inner{position:sticky;top:104px;}
}
.toc h2{font-size:14px;font-family:var(--font-sans);color:var(--c-ink-3);font-weight:600;letter-spacing:.06em;margin-bottom:14px;}
.toc ol{border-left:1px solid var(--c-line);}
.toc li{margin:0;}
.toc a{
  display:block;padding:7px 0 7px 14px;font-size:14px;color:var(--c-ink-2);
  border-left:2px solid transparent;margin-left:-1.5px;line-height:1.6;
}
.toc a:hover{color:var(--c-primary);}
.toc a.is-current{color:var(--c-accent);border-left-color:var(--c-accent);font-weight:600;}

/* ---------- footer ---------- */
.site-footer{margin-top:20px;background:var(--c-primary);color:#D9E2DD;padding:72px 0 30px;}
.site-footer .brand__mark{background:#F2EEE6;color:var(--c-primary);}
.site-footer .brand__name{color:#F6F1E6;}
.site-footer .brand__sub{color:#9DB3AA;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.85;color:#AEC0B8;max-width:340px;}
.footer-col h4{font-family:var(--font-sans);font-size:14px;color:#F6F1E6;letter-spacing:.04em;margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14.5px;color:#AEC0B8;}
.footer-col a:hover{color:#F6F1E6;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(246,241,230,.16);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#9DB3AA;
}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .46s var(--ease),transform .46s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media(max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .article-layout{padding:44px 0 72px;}
}
@media(max-width:900px){
  .nav__pills,.nav__quiet{display:none;}
  .nav__burger{display:block;}
  .nav__actions{margin-left:auto;}
}
@media(max-width:767px){
  :root{--gutter:18px;}
  .page-head{padding-top:32px;}
  .article-head h1{margin:14px 0 14px;}
  .meta-row{gap:8px 16px;}
  .cover img{aspect-ratio:16/9;}
  .cover-cap{margin-bottom:32px;}
  .article-body{font-size:16px;}
  .article-body h2{margin-top:38px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:52px 0 24px;}
}
@media(max-width:560px){
  .brand__sub{display:none;}
  .btn{width:100%;}
  .nav__actions .btn--primary{width:auto;padding:10px 14px;font-size:13.5px;}
  .tail-links .btn{width:auto;}
  .article-head h1{font-size:27px;}
}
@media print{
  .site-header,.site-footer,.toc,.tail-links,.drawer{display:none !important;}
  body{background:#fff;}
  .article-body{max-width:none;}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --c-ink:#161A18;
  --c-ink-2:#5A6560;
  --c-ink-3:#8C948F;
  --c-primary:#143D34;
  --c-primary-2:#1E5A4C;
  --c-primary-3:#2F7A67;
  --c-accent:#C75B39;
  --c-accent-hover:#A9472B;
  --c-celadon:#7FA88F;
  --c-sand:#EADFCB;
  --c-bg:#FAF8F4;
  --c-bg-2:#F2EEE6;
  --c-line:rgba(20,61,52,.14);
  --r-sm:8px;--r-md:12px;--r-lg:18px;--r-xl:24px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(16,34,30,.05);
  --sh-2:0 1px 2px rgba(16,34,30,.05),0 14px 34px -18px rgba(16,34,30,.22);
  --sh-3:0 24px 60px -28px rgba(16,34,30,.30);
  --maxw:1200px;
  --gutter:24px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--c-bg);color:var(--c-ink);font-family:var(--font-sans);font-size:16.5px;line-height:1.8;font-weight:400;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;letter-spacing:-.01em;line-height:1.28;margin:0;color:var(--c-ink)}
h1{font-size:clamp(30px,4.6vw,56px)}
h2{font-size:clamp(26px,3.4vw,40px)}
h3{font-size:20px}
h4{font-size:16px;font-weight:700;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea{font:inherit}
:focus-visible{outline:2px solid rgba(199,91,57,.55);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.tnum{font-variant-numeric:tabular-nums}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 26px;font-size:15px;font-weight:600;border-radius:var(--r-sm);border:1.5px solid transparent;transition:transform .2s cubic-bezier(.22,.61,.36,1),box-shadow .2s,background-color .2s,color .2s,border-color .2s;white-space:nowrap}
.btn--primary{background:var(--c-accent);color:#fff}
.btn--primary:hover{background:var(--c-accent-hover);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18)}
.btn--ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent}
.btn--ghost:hover{background:var(--c-primary);color:#fff;transform:translateY(-1px)}
.btn--ghost:active{transform:translateY(0)}
.btn--quiet{color:var(--c-primary);font-weight:600;padding:8px 2px;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:4px;text-decoration-color:var(--c-primary)}
.btn--quiet:hover{text-decoration-color:var(--c-accent);color:var(--c-primary-2)}
.btn--sm{padding:10px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn--block{width:100%}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--c-line);transition:background-color .25s,box-shadow .25s,backdrop-filter .25s}
.site-header.is-scrolled{background:rgba(255,255,255,.86);backdrop-filter:blur(12px);box-shadow:0 8px 24px -20px rgba(16,34,30,.45)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0;transition:padding .25s}
.site-header.is-scrolled .nav{padding:10px 0}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:var(--r-md);background:var(--c-primary);color:#fff;font-family:var(--font-serif);font-size:17px;font-weight:700;letter-spacing:.02em}
.brand__text{display:flex;flex-direction:column;line-height:1.25}
.brand__name{font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--c-ink)}
.brand__sub{font-size:12px;color:var(--c-ink-3);letter-spacing:.04em}
.nav__pills{display:flex;align-items:center;gap:4px;padding:4px;border-radius:var(--r-pill);background:var(--c-bg-2)}
.nav__pill{padding:9px 18px;border-radius:var(--r-pill);font-size:15px;color:var(--c-ink-2);transition:background-color .2s,color .2s}
.nav__pill:hover{background:#fff;color:var(--c-primary)}
.nav__pill.is-active{background:var(--c-sand);color:var(--c-primary);font-weight:600}
.nav__actions{display:flex;align-items:center;gap:14px}
.nav__quiet{font-size:14px;color:var(--c-ink-2);text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:4px;text-decoration-color:var(--c-line)}
.nav__quiet:hover{color:var(--c-accent);text-decoration-color:var(--c-accent)}
.nav__burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--c-line)}
.nav__burger span{display:block;width:20px;height:1.6px;background:var(--c-primary);margin:0 auto;transition:transform .2s,opacity .2s}
.nav__burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.nav__burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav__burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:120;background:var(--c-primary);color:#fff;display:flex;flex-direction:column;padding:28px var(--gutter) 32px;transform:translateY(-102%);transition:transform .36s cubic-bezier(.22,.61,.36,1);overflow-y:auto}
.drawer.is-open{transform:translateY(0)}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:36px}
.drawer__close{width:44px;height:44px;border:1px solid rgba(255,255,255,.28);border-radius:var(--r-sm);color:#fff;font-size:20px;line-height:1}
.drawer__nav{display:flex;flex-direction:column;gap:6px}
.drawer__link{font-family:var(--font-serif);font-size:30px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.14);color:#fff}
.drawer__link.is-active{color:var(--c-sand)}
.drawer__cta{margin-top:auto;padding-top:32px}
.drawer__cta .btn{width:100%}
body.is-locked{overflow:hidden}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);margin-bottom:18px}
.breadcrumb a{color:var(--c-ink-2);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:var(--c-line)}
.breadcrumb a:hover{color:var(--c-accent);text-decoration-color:var(--c-accent)}
.breadcrumb span[aria-current]{color:var(--c-ink-3)}
.breadcrumb .sep{color:var(--c-line)}

/* ---------- 页头 ---------- */
.page-hero{position:relative;min-height:40vh;display:flex;align-items:flex-end;padding:64px 0 48px;background-image:linear-gradient(120deg,rgba(20,61,52,.82),rgba(20,61,52,.58)),url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;color:#fff}
.page-hero::after{content:"";position:absolute;inset:auto 0 0 0;height:1px;background:rgba(255,255,255,.18)}
.page-hero .breadcrumb{color:rgba(255,255,255,.7)}
.page-hero .breadcrumb a{color:rgba(255,255,255,.9);text-decoration-color:rgba(255,255,255,.35)}
.page-hero .breadcrumb a:hover{color:#fff;text-decoration-color:#fff}
.page-hero .breadcrumb span[aria-current]{color:rgba(255,255,255,.72)}
.page-hero h1{color:#fff;max-width:20ch}
.page-hero p{color:rgba(255,255,255,.84);max-width:62ch;margin-top:18px;font-size:16px}
.page-hero .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags span{font-size:13px;padding:6px 14px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.34);color:#fff}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--c-bg-2)}
.section-head{max-width:64ch;margin-bottom:44px}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--c-accent);font-weight:600;margin-bottom:12px}
.section-head h2{margin-bottom:16px}
.section-head p{color:var(--c-ink-2);font-size:15.5px;line-height:1.85}

/* ---------- 导语区 4/8 ---------- */
.intro-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.intro-aside{position:sticky;top:104px}
.intro-aside h3{font-size:18px;margin-bottom:8px}
.intro-aside .aside-note{font-size:14px;color:var(--c-ink-3);margin-bottom:22px}
.anchor-list{border-top:1px solid var(--c-line)}
.anchor-list li{border-bottom:1px solid var(--c-line)}
.anchor-list a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 2px;font-size:15px;color:var(--c-ink-2);transition:color .2s,padding-left .2s}
.anchor-list a:hover{color:var(--c-primary);padding-left:6px}
.anchor-list a::after{content:"→";font-size:14px;color:var(--c-celadon)}
.intro-body p+p{margin-top:1.15em}
.intro-body p{color:var(--c-ink-2);font-size:16.5px}
.intro-body .lead{color:var(--c-ink);font-family:var(--font-serif);font-size:20px;line-height:1.7;margin-bottom:22px}
.intro-body ul.dotlist{margin-top:20px;display:grid;gap:10px}
.intro-body ul.dotlist li{position:relative;padding-left:20px;color:var(--c-ink-2);font-size:15.5px}
.intro-body ul.dotlist li::before{content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--c-accent)}

/* ---------- 条目网格 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.entry-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;transition:transform .22s cubic-bezier(.22,.61,.36,1),border-color .22s,box-shadow .22s;position:relative}
.entry-card:hover{transform:translateY(-2px);border-color:var(--c-primary-3);box-shadow:var(--sh-2)}
.entry-card__media{position:relative;aspect-ratio:16/10;background:var(--c-bg-2);overflow:hidden}
.entry-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.22,.61,.36,1)}
.entry-card:hover .entry-card__media img{transform:scale(1.03)}
.entry-card__body{padding:26px 28px 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.entry-card__body h3{font-size:21px;line-height:1.4;transition:color .2s}
.entry-card:hover .entry-card__body h3{color:var(--c-primary)}
.entry-card__body p{color:var(--c-ink-2);font-size:15.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:16px;border-top:1px solid var(--c-line);font-size:13.5px;color:var(--c-ink-3)}
.entry-card__foot .tnum{font-variant-numeric:tabular-nums}
.entry-card__link{position:absolute;inset:0;z-index:2}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);background:var(--c-sand);color:var(--c-primary);font-size:13px;font-weight:600;width:fit-content}
.badge--celadon{background:transparent;border:1px solid var(--c-celadon);color:var(--c-primary-2)}
.badge--accent{background:transparent;border:1px solid var(--c-accent);color:var(--c-accent)}

/* ---------- 编号清单 ---------- */
.steps{border-top:1px solid var(--c-line)}
.steps li{display:grid;grid-template-columns:120px 1fr;gap:32px;padding:34px 0;border-bottom:1px solid var(--c-line)}
.steps .num{font-family:var(--font-serif);font-size:44px;font-weight:700;color:var(--c-celadon);line-height:1;font-variant-numeric:tabular-nums}
.steps h3{margin-bottom:10px}
.steps p{color:var(--c-ink-2);font-size:15.5px;max-width:70ch}
.steps .meta{margin-top:14px;display:flex;flex-wrap:wrap;gap:10px}
.steps .meta span{font-size:13px;color:var(--c-ink-3);border:1px solid var(--c-line);border-radius:var(--r-pill);padding:4px 12px;font-variant-numeric:tabular-nums}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-grid .section-head{margin-bottom:0}
.accordion{display:grid;gap:12px}
.acc-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;transition:border-color .2s}
.acc-item.is-open{border-color:var(--c-primary-3)}
.acc-trigger{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;padding:20px 22px;font-size:16.5px;font-weight:600;color:var(--c-ink);border-left:2px solid transparent;transition:border-color .2s,color .2s}
.acc-item.is-open .acc-trigger{border-left-color:var(--c-accent);color:var(--c-primary)}
.acc-trigger:hover{color:var(--c-primary)}
.acc-icon{position:relative;flex:0 0 auto;width:16px;height:16px;transition:transform .28s cubic-bezier(.22,.61,.36,1)}
.acc-icon::before,.acc-icon::after{content:"";position:absolute;background:var(--c-primary-3);border-radius:2px}
.acc-icon::before{left:0;top:7px;width:16px;height:1.6px}
.acc-icon::after{left:7px;top:0;width:1.6px;height:16px;transition:transform .28s,opacity .28s}
.acc-item.is-open .acc-icon{transform:rotate(90deg)}
.acc-item.is-open .acc-icon::after{transform:scaleY(0);opacity:0}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .28s cubic-bezier(.22,.61,.36,1)}
.acc-panel__inner{padding:0 22px 22px;color:var(--c-ink-2);font-size:15.5px;line-height:1.85}
.acc-panel__inner p+p{margin-top:.9em}

/* ---------- 小尺寸 CTA 条 ---------- */
.cta-band{background:var(--c-primary);color:#fff;border-radius:var(--r-lg);padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:14px 14px}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.78);font-size:15.5px;max-width:56ch}
.cta-band .btn{flex:0 0 auto}

/* ---------- 互链区 ---------- */
.related-links{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:12px}
.related-links a{display:flex;flex-direction:column;gap:8px;padding:24px 26px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);transition:border-color .2s,transform .2s,box-shadow .2s}
.related-links a:hover{border-color:var(--c-primary-3);transform:translateY(-2px);box-shadow:var(--sh-2)}
.related-links strong{font-family:var(--font-serif);font-size:19px;color:var(--c-ink)}
.related-links span{font-size:14.5px;color:var(--c-ink-2)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary);color:rgba(255,255,255,.78);padding:80px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.14)}
.footer-brand .brand{margin-bottom:18px}
.footer-brand .brand__name,.footer-brand .brand__mark{color:#fff}
.footer-brand .brand__mark{background:rgba(255,255,255,.12)}
.footer-brand .brand__sub{color:rgba(255,255,255,.6)}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.7);max-width:44ch}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-family:var(--font-sans);font-weight:600;letter-spacing:.04em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-top:22px;font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .46s cubic-bezier(.22,.61,.36,1),transform .46s cubic-bezier(.22,.61,.36,1)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .section{padding:80px 0}
  .intro-grid,.faq-grid{gap:40px}
}
@media (max-width:1023px){
  .nav__pills{display:none}
  .nav__quiet{display:none}
  .nav__burger{display:flex}
  .section{padding:72px 0}
  .intro-grid,.faq-grid{grid-template-columns:1fr;gap:32px}
  .intro-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .entry-grid{gap:22px}
  .entry-card__body{padding:22px}
  .steps li{grid-template-columns:84px 1fr;gap:22px;padding:26px 0}
  .steps .num{font-size:34px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 30px}
}
@media (max-width:767px){
  :root{--gutter:18px}
  body{font-size:16px}
  .site-header .brand__sub{display:none}
  .nav__actions .btn--primary{display:none}
  .page-hero{min-height:36vh;padding:48px 0 38px}
  .section,.section--tight{padding:56px 0}
  .section-head{margin-bottom:32px}
  .entry-grid{grid-template-columns:1fr}
  .related-links{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:60px 0 24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  h1{font-size:clamp(26px,7.6vw,34px)}
  h2{font-size:clamp(22px,6vw,28px)}
  .btn{width:100%}
  .btn--sm{width:auto}
  .cta-band .btn{width:100%}
  .drawer__link{font-size:24px}
  .entry-card__body h3{font-size:19px}
}
@media print{
  .site-header,.drawer,.cta-band,.site-footer{display:none}
  body{background:#fff;color:#000;font-size:12pt}
  .entry-card,.acc-item{break-inside:avoid}
}

/* roulang page: category2 */
:root{
  --c-ink:#161A18;
  --c-ink-2:#5A6560;
  --c-ink-3:#8C948F;
  --c-primary:#143D34;
  --c-primary-2:#1E5A4C;
  --c-primary-3:#2F7A67;
  --c-accent:#C75B39;
  --c-accent-hover:#A9472B;
  --c-celadon:#7FA88F;
  --c-sand:#EADFCB;
  --c-bg:#FAF8F4;
  --c-bg-2:#F2EEE6;
  --c-line:rgba(20,61,52,.14);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,34,30,.05);
  --sh-2:0 1px 2px rgba(16,34,30,.05),0 14px 34px -18px rgba(16,34,30,.22);
  --sh-3:0 24px 60px -28px rgba(16,34,30,.30);
  --maxw:1200px;
  --gutter:24px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:600;letter-spacing:-.01em;line-height:1.32;color:var(--c-ink);}
p{margin:0;}
time,.num{font-variant-numeric:tabular-nums;}
::selection{background:var(--c-sand);color:var(--c-primary);}
:focus-visible{outline:2px solid rgba(199,91,57,.55);outline-offset:2px;border-radius:4px;}
body.no-scroll{overflow:hidden;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:var(--r-sm);
  border:1.5px solid transparent;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn--primary:hover{background:var(--c-accent-hover);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18);}
.btn--outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn--outline:hover{background:var(--c-primary);color:#fff;transform:translateY(-1px);}
.btn--outline:active{transform:translateY(0);}
.btn--quiet{background:transparent;color:var(--c-primary);padding:14px 4px;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1.5px;}
.btn--quiet:hover{text-decoration-color:var(--c-accent);color:var(--c-accent-hover);}
.btn--sm{padding:10px 18px;font-size:14px;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:background-color .28s ease,border-color .28s ease,backdrop-filter .28s ease;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:rgba(20,61,52,.18);
}
.nav{display:flex;align-items:center;gap:24px;height:76px;transition:height .28s ease;}
.site-header.is-stuck .nav{height:64px;}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0;}
.brand__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:var(--c-primary);color:var(--c-sand);
  font-family:var(--font-serif);font-size:16px;font-weight:700;letter-spacing:.02em;
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__name{font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--c-primary);letter-spacing:-.01em;}
.brand__sub{font-size:11.5px;color:var(--c-ink-3);letter-spacing:.04em;}
.nav__pills{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav__pill{
  padding:9px 16px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:var(--c-ink-2);
  transition:background-color .2s ease,color .2s ease;
}
.nav__pill:hover{background:var(--c-bg-2);color:var(--c-primary);}
.nav__pill.is-active{background:var(--c-sand);color:var(--c-primary);font-weight:600;}
.nav__actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav__quiet{font-size:14.5px;color:var(--c-ink-2);text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px;}
.nav__quiet:hover{color:var(--c-accent);text-decoration-color:var(--c-accent);}
.nav__burger{display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--c-line);align-items:center;justify-content:center;flex-direction:column;gap:5px;}
.nav__burger span{display:block;width:18px;height:1.5px;background:var(--c-primary);transition:transform .24s ease,opacity .24s ease;}
.nav__burger.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav__burger.is-open span:nth-child(2){opacity:0;}
.nav__burger.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

.drawer{
  position:fixed;inset:0;z-index:130;
  background:var(--c-primary);color:#fff;
  padding:96px var(--gutter) 32px;
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-14px);
  transition:opacity .28s ease,transform .28s cubic-bezier(.22,.61,.36,1),visibility .28s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer__close{position:absolute;top:22px;right:22px;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.28);color:#fff;font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;}
.drawer__close:hover{background:rgba(255,255,255,.12);}
.drawer__nav{display:flex;flex-direction:column;gap:6px;}
.drawer__nav a{
  font-family:var(--font-serif);font-size:clamp(24px,7vw,32px);font-weight:600;
  padding:14px 0;border-bottom:1px solid rgba(255,255,255,.14);
  color:#fff;transition:color .2s ease,padding-left .2s ease;
}
.drawer__nav a:hover{color:var(--c-sand);padding-left:8px;}
.drawer__nav a.is-active{color:var(--c-sand);}
.drawer__cta{margin-top:auto;padding-top:26px;}
.drawer__cta .btn{width:100%;}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;overflow:hidden;
  background-color:var(--c-primary);
  background-image:linear-gradient(180deg,rgba(20,61,52,.82),rgba(20,61,52,.68)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:#fff;
  padding:64px 0 56px;
  min-height:40vh;
  display:flex;align-items:center;
}
.page-head__inner{position:relative;z-index:2;max-width:860px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;}
.breadcrumb a{color:rgba(255,255,255,.86);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--c-sand);text-decoration:underline;text-underline-offset:4px;}
.breadcrumb span[aria-current]{color:#fff;}
.breadcrumb .sep{opacity:.5;}
.page-head__tag{
  display:inline-block;margin-bottom:18px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(234,223,203,.16);border:1px solid rgba(234,223,203,.34);
  color:var(--c-sand);font-size:13px;letter-spacing:.05em;
}
.page-head h1{
  color:#fff;
  font-size:clamp(30px,4.4vw,48px);
  line-height:1.24;
  margin-bottom:18px;
  text-shadow:0 12px 34px rgba(0,0,0,.28);
}
.page-head__desc{font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);max-width:720px;margin-bottom:28px;}
.page-head__actions{display:flex;flex-wrap:wrap;gap:14px;}
.page-head .btn--outline{border-color:rgba(255,255,255,.6);color:#fff;}
.page-head .btn--outline:hover{background:#fff;color:var(--c-primary);border-color:#fff;}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--c-bg-2);}
.section__head{max-width:720px;margin-bottom:48px;}
.section__kicker{display:block;font-size:13px;letter-spacing:.14em;color:var(--c-accent);font-weight:600;margin-bottom:12px;}
.section__title{font-size:clamp(26px,3.4vw,38px);margin-bottom:16px;}
.section__desc{font-size:15.5px;line-height:1.85;color:var(--c-ink-2);}

/* ---------- 快讯条 ---------- */
.ticker{
  border:1px solid var(--c-line);border-radius:var(--r-lg);background:#fff;
  display:flex;align-items:center;gap:18px;padding:16px 22px;margin-top:-34px;
  position:relative;z-index:5;box-shadow:var(--sh-2);
}
.ticker__label{
  flex-shrink:0;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-sand);color:var(--c-primary);font-size:13px;font-weight:600;
}
.ticker__text{font-size:14.5px;color:var(--c-ink-2);}
.ticker__text strong{color:var(--c-ink);font-weight:600;}

/* ---------- 导语区 ---------- */
.intro-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.intro-side{position:sticky;top:104px;}
.intro-side__title{font-size:22px;margin-bottom:10px;}
.intro-side__note{font-size:14px;color:var(--c-ink-3);margin-bottom:22px;}
.anchor-list{border-top:1px solid var(--c-line);}
.anchor-list li{border-bottom:1px solid var(--c-line);}
.anchor-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 2px;font-size:14.5px;color:var(--c-ink-2);
  transition:color .2s ease,padding-left .2s ease;
}
.anchor-list a::after{content:"→";font-size:13px;color:var(--c-ink-3);transition:transform .2s ease,color .2s ease;}
.anchor-list a:hover{color:var(--c-primary);padding-left:6px;}
.anchor-list a:hover::after{color:var(--c-accent);transform:translateX(3px);}
.intro-body p{font-size:16.5px;line-height:1.9;color:var(--c-ink-2);margin-bottom:22px;}
.intro-body p:last-child{margin-bottom:0;}
.intro-body p em{font-style:normal;color:var(--c-ink);}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.tile{
  position:relative;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.tile:hover{border-color:var(--c-celadon);transform:translateY(-2px);box-shadow:var(--sh-2);}
.tile__media{aspect-ratio:4/3;background:var(--c-bg-2);border-bottom:1px solid var(--c-line);overflow:hidden;}
.tile__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.22,.61,.36,1);}
.tile:hover .tile__media img{transform:scale(1.03);}
.tile__body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.tile__title{font-size:19px;line-height:1.45;color:var(--c-ink);transition:color .22s ease;}
.tile:hover .tile__title{color:var(--c-primary);}
.tile__text{font-size:14.5px;line-height:1.8;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.tile__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--c-line);}
.tile__meta{font-size:13px;color:var(--c-ink-3);}
.tile__link{font-size:14px;font-weight:600;color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1.5px;}
.tile:hover .tile__link{text-decoration-color:var(--c-accent);color:var(--c-accent-hover);}
.tile__overlay{position:absolute;inset:0;z-index:3;border-radius:var(--r-lg);}
.badge{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-sand);color:var(--c-primary);font-size:12.5px;font-weight:600;
}
.badge--celadon{background:rgba(127,168,143,.16);border:1px solid rgba(47,122,103,.35);color:var(--c-primary-2);}
.badge--accent{background:rgba(199,91,57,.1);border:1px solid rgba(199,91,57,.35);color:var(--c-accent-hover);}

/* ---------- 横向卡带 ---------- */
.rail{position:relative;}
.rail__track{
  display:flex;gap:20px;overflow-x:auto;padding:6px 2px 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
}
.rail__track::-webkit-scrollbar{height:8px;}
.rail__track::-webkit-scrollbar-thumb{background:rgba(20,61,52,.2);border-radius:var(--r-pill);}
.rail__track::-webkit-scrollbar-track{background:transparent;}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:26px;display:flex;flex-direction:column;gap:14px;
  transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.rail-card:hover{border-color:var(--c-celadon);transform:translateY(-2px);box-shadow:var(--sh-2);}
.rail-card__no{font-family:var(--font-serif);font-size:30px;font-weight:700;color:var(--c-accent);line-height:1;}
.rail-card__title{font-size:18px;line-height:1.45;}
.rail-card__list{display:flex;flex-direction:column;gap:9px;margin-top:2px;}
.rail-card__list li{
  display:flex;gap:10px;font-size:14px;line-height:1.75;color:var(--c-ink-2);
  padding-left:16px;position:relative;
}
.rail-card__list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-celadon);
}
.rail-card__foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-ink-3);}
.rail__hint{font-size:13px;color:var(--c-ink-3);margin-top:2px;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-side h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px;}
.faq-side p{font-size:15px;line-height:1.85;color:var(--c-ink-2);}
.faq{border-top:1px solid var(--c-line);}
.faq__item{border-bottom:1px solid var(--c-line);position:relative;}
.faq__item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;background:transparent;
  transition:background-color .24s ease;
}
.faq__item.is-open::before{background:var(--c-accent);}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px 22px 18px;text-align:left;
  font-family:var(--font-serif);font-size:17.5px;font-weight:600;line-height:1.5;color:var(--c-ink);
  transition:color .22s ease;
}
.faq__q:hover{color:var(--c-primary-2);}
.faq__icon{position:relative;flex:0 0 18px;width:18px;height:18px;transition:transform .28s ease;}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;background:var(--c-primary-3);border-radius:2px;transition:background-color .22s ease;
}
.faq__icon::before{left:0;top:8px;width:18px;height:1.5px;}
.faq__icon::after{top:0;left:8px;width:1.5px;height:18px;}
.faq__item.is-open .faq__icon{transform:rotate(90deg);}
.faq__item.is-open .faq__icon::after{background:var(--c-accent);}
.faq__a{max-height:0;overflow:hidden;transition:max-height .28s cubic-bezier(.22,.61,.36,1);}
.faq__a p{padding:0 4px 24px 18px;font-size:15.5px;line-height:1.9;color:var(--c-ink-2);}

/* ---------- 小尺寸 CTA 条 ---------- */
.cta-bar{
  background:var(--c-primary);
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:18px 18px;
  border-radius:var(--r-lg);
  padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  color:#fff;
}
.cta-bar__title{font-family:var(--font-serif);font-size:22px;font-weight:600;margin-bottom:8px;color:#fff;}
.cta-bar__text{font-size:14.5px;color:rgba(255,255,255,.78);line-height:1.75;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary);color:#fff;margin-top:96px;padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.14);}
.footer-brand .brand__mark{background:rgba(234,223,203,.14);color:var(--c-sand);border:1px solid rgba(234,223,203,.28);}
.footer-brand .brand__name{color:#fff;}
.footer-brand .brand__sub{color:rgba(255,255,255,.6);}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px;}
.footer-col h4{font-family:var(--font-sans);font-size:14px;font-weight:600;color:var(--c-sand);letter-spacing:.06em;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:24px;font-size:13px;color:rgba(255,255,255,.55);}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .46s cubic-bezier(.22,.61,.36,1),transform .46s cubic-bezier(.22,.61,.36,1);}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- 图片占位 ---------- */
.ph{background:var(--c-bg-2);border:1px solid var(--c-line);border-radius:var(--r-md);}

/* ---------- 响应式 ---------- */
@media (max-width:1099px){
  .intro-grid,.faq-grid{grid-template-columns:1fr;gap:36px;}
  .intro-side{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav__pills{display:none;}
  .nav__quiet{display:none;}
  .nav__burger{display:flex;}
  .nav__actions{gap:10px;}
}
@media (max-width:768px){
  :root{--gutter:18px;}
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .section__head{margin-bottom:34px;}
  .card-grid{grid-template-columns:1fr;}
  .page-head{padding:48px 0 44px;min-height:auto;}
  .page-head__desc{font-size:15px;}
  .page-head__actions .btn{width:100%;}
  .cta-bar{padding:28px 22px;border-radius:var(--r-md);}
  .cta-bar .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:56px 0 24px;margin-top:64px;}
  .ticker{flex-direction:column;align-items:flex-start;gap:10px;margin-top:-24px;}
}
@media (max-width:560px){
  body{font-size:15.5px;}
  .page-head h1{font-size:26px;}
  .section__title{font-size:24px;}
  .tile__body{padding:18px 20px 20px;}
  .rail-card{flex:0 0 84%;}
  .faq__q{font-size:16px;padding:18px 2px 18px 14px;}
  .btn{padding:13px 20px;width:100%;}
  .nav__actions .btn--sm{width:auto;padding:9px 14px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}
@media print{
  .site-header,.drawer,.cta-bar,.site-footer{display:none;}
  body{background:#fff;color:#000;}
}