/* roulang page: index */
:root{
  --c-primary:#0F3B2E;
  --c-primary-deep:#092A20;
  --c-primary-soft:#1E6A52;
  --c-accent:#FF6B2C;
  --c-accent-soft:#F5B53F;
  --c-bg:#F6F4EE;
  --c-bg-alt:#EDEAE1;
  --c-surface:#FFFFFF;
  --c-surface-dark:rgba(255,255,255,.06);
  --c-ink:#16211C;
  --c-ink-2:#5A6560;
  --c-ink-3:#8B948F;
  --c-line:#E2DED3;
  --c-line-dark:rgba(255,255,255,.12);
  --c-ok:#1E8E5A;
  --c-warn:#C9861A;
  --c-err:#C0392B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,59,46,.06);
  --sh-2:0 12px 32px -12px rgba(15,59,46,.18);
  --sh-3:0 18px 40px -16px rgba(15,59,46,.26);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sp-section:clamp(56px,8vw,104px);
}
*,*::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:17px;
  line-height:1.88;
  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:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;line-height:1.3;color:var(--c-ink)}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.nums{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;line-height:1.2;
  transition:transform 200ms cubic-bezier(.2,.7,.2,1),box-shadow 200ms cubic-bezier(.2,.7,.2,1),background-color 200ms ease,color 200ms ease,border-color 200ms ease;
}
.btn i{font-size:14px}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-2)}
.btn--primary:hover{background:#ef5c1e;transform:translateY(-1px)}
.btn--primary:active{transform:translateY(1px);box-shadow:none}
.btn--ghost{border:1px solid var(--c-primary);color:var(--c-primary);background:transparent}
.btn--ghost:hover{background:rgba(15,59,46,.08);transform:translateY(-1px)}
.btn--ghost:active{transform:translateY(1px)}
.btn--text{color:var(--c-primary);padding:0;border-radius:0;text-decoration:underline;text-underline-offset:3px;font-weight:600}
.btn--text:hover{color:var(--c-accent)}
.btn--block{width:100%}
.btn--light{background:#fff;color:var(--c-primary)}
.btn--light:hover{background:#f2efe7}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- top bar ---------- */
.topbar{background:var(--c-primary-deep);color:rgba(255,255,255,.78);font-size:13px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:16px}
.topbar__left{display:flex;align-items:center;gap:8px}
.topbar__left i{color:var(--c-accent-soft)}
.topbar__right{display:flex;align-items:center;gap:18px}
.topbar__right a{color:rgba(255,255,255,.78);transition:color 200ms ease}
.topbar__right a:hover{color:#fff}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-line);box-shadow:var(--sh-1)}
.nav{display:flex;align-items:center;gap:28px;height:74px;position:relative}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.logo__mark{position:relative;width:40px;height:40px;border-radius:var(--r-md);background:var(--c-primary);overflow:hidden;flex:0 0 auto}
.logo__mark::after{content:"";position:absolute;inset:-10%;background:linear-gradient(115deg,transparent 42%,var(--c-accent) 42%,var(--c-accent) 62%,transparent 62%)}
.logo__text{display:flex;flex-direction:column;line-height:1.2}
.logo__name{font-size:17px;font-weight:700;color:var(--c-primary);letter-spacing:-0.01em}
.logo__sub{font-size:12px;color:var(--c-ink-3);letter-spacing:.08em}
.nav__list{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav__item{position:relative}
.nav__link{display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border-radius:var(--r-md);font-size:15.5px;font-weight:600;color:var(--c-ink-2);transition:color 200ms ease,background-color 200ms ease}
.nav__link:hover{color:var(--c-primary);background:var(--c-bg-alt)}
.nav__item.is-active .nav__link{color:var(--c-primary)}
.nav__item.is-active .nav__link::after{content:"";position:absolute;left:14px;right:14px;bottom:-27px;height:2px;background:var(--c-accent);border-radius:2px}
.nav__actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav__actions .btn{padding:10px 20px;font-size:15px}
.mega-toggle i{transition:transform 200ms ease}
.nav__item.has-mega:hover .mega-toggle i,.nav__item.has-mega:focus-within .mega-toggle i{transform:rotate(180deg)}

/* ---------- mega ---------- */
.mega{
  position:absolute;top:calc(100% + 8px);right:0;width:820px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:24px;display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity 200ms ease,transform 200ms ease,visibility 200ms;
}
.nav__item.has-mega:hover .mega,.nav__item.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega__title{font-size:13px;font-weight:700;color:var(--c-ink-3);letter-spacing:.1em;margin-bottom:12px}
.mega__links li+li{margin-top:6px}
.mega__links a{font-size:15px;color:var(--c-ink-2);display:inline-block;padding:3px 0;transition:color 200ms ease,transform 200ms ease}
.mega__links a:hover{color:var(--c-accent);transform:translateX(3px)}
.mega__news li+li{margin-top:14px;padding-top:14px;border-top:1px dashed var(--c-line)}
.mega__news a{display:block}
.mega__news strong{display:block;font-size:14px;font-weight:600;color:var(--c-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mega__news span{font-size:12px;color:var(--c-ink-3);font-family:var(--font-num)}
.mega__news a:hover strong{color:var(--c-primary-soft)}
.mega__card{display:block;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;background:var(--c-bg);transition:box-shadow 200ms ease,transform 200ms ease}
.mega__card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.mega__card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;background:var(--c-bg-alt)}
.mega__card-body{padding:12px 14px 14px}
.mega__card-body strong{display:block;font-size:15px;margin-bottom:4px}
.mega__card-body span{font-size:13px;color:var(--c-ink-2)}

/* ---------- drawer ---------- */
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--c-line);align-items:center;justify-content:center;color:var(--c-primary);font-size:18px}
.drawer-mask{position:fixed;inset:0;background:rgba(9,42,32,.55);opacity:0;visibility:hidden;transition:opacity 200ms ease,visibility 200ms;z-index:70}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);background:var(--c-surface);z-index:80;transform:translateX(105%);transition:transform 260ms cubic-bezier(.2,.7,.2,1);overflow-y:auto;padding:20px}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer__close{width:40px;height:40px;border-radius:var(--r-md);border:1px solid var(--c-line);font-size:16px;color:var(--c-primary)}
.drawer__list>li+li{margin-top:6px}
.drawer__list a{display:block;padding:12px 14px;border-radius:var(--r-md);font-size:16px;font-weight:600;color:var(--c-ink-2)}
.drawer__list a:hover{background:var(--c-bg-alt);color:var(--c-primary)}
.drawer__list li.is-active a{background:rgba(15,59,46,.08);color:var(--c-primary)}
.drawer__group-title{font-size:13px;letter-spacing:.1em;color:var(--c-ink-3);margin:22px 0 10px;font-weight:700}
.drawer__sub li a{padding:10px 14px;font-size:15px;font-weight:500}
.drawer__cta{margin-top:22px}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--c-primary-deep);color:#fff;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.9;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(9,42,32,.94) 0%,rgba(9,42,32,.82) 46%,rgba(9,42,32,.42) 100%);
}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:clamp(56px,7vw,92px) 24px}
.hero__badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);background:rgba(245,181,63,.16);border:1px solid rgba(245,181,63,.42);color:var(--c-accent-soft);font-size:13px;font-weight:600;margin-bottom:20px}
.hero h1{color:#fff;font-size:clamp(26px,3.6vw,44px);margin-bottom:18px;max-width:16em}
.hero__lead{font-size:clamp(16px,1.5vw,18px);line-height:1.8;color:rgba(255,255,255,.82);max-width:34em;margin-bottom:28px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero__points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:rgba(255,255,255,.78)}
.hero__points li{display:flex;align-items:center;gap:8px}
.hero__points i{color:var(--c-accent)}
.hero__panel{background:rgba(255,255,255,.07);border:1px solid var(--c-line-dark);border-radius:var(--r-lg);padding:24px;backdrop-filter:blur(2px)}
.hero__panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;font-size:14px;color:rgba(255,255,255,.72)}
.hero__panel-head b{color:#fff;font-size:15px}
.kpi-mini{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.kpi-mini__item{background:rgba(255,255,255,.05);border:1px solid var(--c-line-dark);border-radius:var(--r-md);padding:14px 16px}
.kpi-mini__num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:34px;font-weight:700;color:#fff;line-height:1.1}
.kpi-mini__num small{font-size:15px;font-weight:600;margin-left:3px;color:var(--c-accent-soft)}
.kpi-mini__label{font-size:13px;color:rgba(255,255,255,.7);margin-top:6px}

/* ---------- sections ---------- */
.section{padding:var(--sp-section) 0}
.section--alt{background:var(--c-bg-alt)}
.section--tight{padding-top:calc(var(--sp-section) * .62)}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section__title{font-size:clamp(22px,2.6vw,34px)}
.section__desc{color:var(--c-ink-2);font-size:16px;max-width:44em;margin-top:12px;line-height:1.85}
.section__head .btn--text{white-space:nowrap}

/* ---------- kpi ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.kpi-card{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--sh-1);transition:box-shadow 200ms ease,transform 200ms ease}
.kpi-card:nth-child(even){background:var(--c-bg-alt)}
.kpi-card:nth-child(odd){border-left:3px solid var(--c-accent)}
.kpi-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px)}
.kpi-card__num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:40px;font-weight:700;color:var(--c-primary);line-height:1.05}
.kpi-card__num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--c-primary-soft)}
.kpi-card__label{font-size:15px;color:var(--c-ink-2);margin-top:10px}
.badge{display:inline-flex;align-items:center;gap:6px;margin-top:14px;padding:4px 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600}
.badge--soft{background:rgba(245,181,63,.18);color:#8a5d08}
.badge--ok{background:rgba(30,142,90,.12);color:var(--c-ok)}
.badge--primary{background:rgba(15,59,46,.1);color:var(--c-primary)}

/* ---------- matrix ---------- */
.matrix{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);transition:box-shadow 200ms ease,transform 200ms ease;position:relative;display:flex;flex-direction:column}
.card:hover{box-shadow:var(--sh-3);transform:translateY(-2px)}
.card:hover .card__arrow{transform:translateX(4px)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);background:rgba(15,59,46,.1);color:var(--c-primary);font-size:12.5px;font-weight:600}
.card__arrow{margin-top:auto;color:var(--c-accent);font-size:14px;transition:transform 200ms ease;display:inline-flex;align-items:center;gap:6px;font-weight:600}
.card--feature{grid-column:span 8;flex-direction:row;overflow:hidden}
.card--feature .card__body{padding:32px;display:flex;flex-direction:column;gap:14px;flex:1 1 55%}
.card--feature img{flex:1 1 45%;width:45%;aspect-ratio:4/3;object-fit:cover;border-radius:0;background:var(--c-bg-alt)}
.card--mid{grid-column:span 4;padding:28px;gap:14px}
.card--low{grid-column:span 4;padding:26px;gap:12px}
.card--dark{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.card--dark h3,.card--dark .card__arrow{color:#fff}
.card--dark .tag{background:rgba(255,255,255,.14);color:var(--c-accent-soft)}
.card--dark p{color:rgba(255,255,255,.8)}
.card h3{font-size:20px}
.card p{font-size:15px;color:var(--c-ink-2);line-height:1.85;margin:0}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:40px}
.compare__col{border-radius:var(--r-lg);padding:28px;border:1px solid var(--c-line);background:var(--c-bg-alt)}
.compare__col--hl{background:var(--c-surface);border:1.5px solid var(--c-primary);box-shadow:var(--sh-2)}
.compare__col h3{font-size:20px;margin-bottom:16px}
.compare__col li{display:flex;gap:10px;font-size:15.5px;line-height:1.8;color:var(--c-ink-2);padding:6px 0}
.compare__col i{font-size:13px;margin-top:7px;flex:0 0 auto}
.compare__col--hl i{color:var(--c-accent)}
.compare__col:not(.compare__col--hl) i{color:var(--c-ink-3)}
.bars{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:28px;display:grid;gap:22px}
.bars__row{display:grid;grid-template-columns:150px 1fr 90px;align-items:center;gap:18px;font-size:15px}
.bars__label{color:var(--c-ink-2)}
.bars__track{height:10px;border-radius:var(--r-pill);background:var(--c-bg-alt);overflow:hidden}
.bars__fill{height:100%;border-radius:var(--r-pill);background:var(--c-primary);transition:width 600ms cubic-bezier(.2,.7,.2,1)}
.bars__fill--accent{background:var(--c-accent)}
.bars__val{text-align:right;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:700;color:var(--c-primary)}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:box-shadow 200ms ease,transform 200ms ease}
.news-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px)}
.news-card__media{position:relative;display:block}
.news-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;background:var(--c-bg-alt)}
.news-card__cat{position:absolute;top:12px;left:12px;padding:4px 12px;border-radius:var(--r-pill);background:rgba(9,42,32,.82);color:#fff;font-size:12.5px;font-weight:600}
.news-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card__title{font-size:16px;line-height:1.55}
.news-card__title a:hover{color:var(--c-primary-soft)}
.news-card__desc{font-size:14px;color:var(--c-ink-2);line-height:1.8;margin:0}
.news-card__meta{margin-top:auto;padding-top:10px;border-top:1px dashed var(--c-line);font-size:13px;color:var(--c-ink-3);display:flex;align-items:center;gap:8px}
.news-card__meta time{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.empty-state{grid-column:1/-1;border:1px dashed var(--c-line);border-radius:var(--r-lg);padding:48px 24px;text-align:center;background:var(--c-surface)}
.empty-state i{font-size:26px;color:var(--c-ink-3);margin-bottom:12px;display:block}
.empty-state p{color:var(--c-ink-2);font-size:15px;margin-bottom:18px}
.skeleton{border-radius:var(--r-md);background:linear-gradient(90deg,var(--c-bg-alt) 25%,#f8f6f1 37%,var(--c-bg-alt) 63%);background-size:400% 100%;animation:sk 1.4s ease infinite}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------- faq ---------- */
.faq{max-width:800px;margin:0 auto}
.faq__item{border-bottom:1px solid var(--c-line)}
.faq__item:first-child{border-top:1px solid var(--c-line)}
.faq__q{width:100%;display:flex;align-items:center;gap:14px;padding:22px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--c-primary);transition:color 200ms ease}
.faq__q:hover{color:var(--c-accent)}
.faq__num{flex:0 0 auto;width:30px;height:30px;border-radius:var(--r-sm);background:rgba(15,59,46,.08);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-family:var(--font-num);font-size:14px;font-weight:700}
.faq__q span{flex:1}
.faq__q i{transition:transform 200ms ease;color:var(--c-ink-3);font-size:14px}
.faq__item.is-open .faq__q i{transform:rotate(180deg)}
.faq__skeleton{display:none}
.faq__panel{max-height:0;overflow:hidden;transition:max-height 220ms ease}
.faq__item.is-open .faq__panel{max-height:320px}
.faq__a{padding:0 4px 22px 48px;font-size:15px;line-height:1.9;color:var(--c-ink-2)}

/* ---------- form ---------- */
.contact{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.contact__info h2{font-size:clamp(22px,2.6vw,34px);margin-bottom:18px}
.contact__info p{color:var(--c-ink-2);font-size:16px}
.contact__list{margin-top:24px;display:grid;gap:14px}
.contact__list li{display:flex;gap:12px;font-size:15.5px;color:var(--c-ink-2)}
.contact__list i{color:var(--c-accent);margin-top:6px}
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:32px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink-2);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;padding:14px 16px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  font-size:15.5px;min-height:46px;transition:border-color 200ms ease,box-shadow 200ms ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,59,46,.18);outline:none}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--c-err)}
.field__error{display:none;margin-top:6px;font-size:12px;color:var(--c-err)}
.field.has-error .field__error{display:block}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-ink-2);line-height:1.7}
.checkbox input{width:18px;height:18px;margin-top:5px;flex:0 0 auto;accent-color:var(--c-primary)}
.form-note{margin-top:14px;font-size:13px;color:var(--c-ink-3)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer__brand .logo__mark{background:rgba(255,255,255,.1)}
.footer__brand-name{color:#fff;font-size:17px;font-weight:700;margin:14px 0 10px}
.footer__brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin:0;max-width:22em}
.footer__col h4{font-size:15px;color:#fff;margin-bottom:18px}
.footer__links li+li{margin-top:10px}
.footer__links a{font-size:14px;color:rgba(255,255,255,.72);transition:color 200ms ease,transform 200ms ease;display:inline-block}
.footer__links a:hover{color:#fff;transform:translateX(2px)}
.footer__bottom{border-top:1px solid var(--c-line-dark);padding:20px 0;font-size:13px;color:rgba(255,255,255,.55);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{max-width:1080px}
  .mega{width:700px;grid-template-columns:1fr 1fr}
  .mega__card{display:none}
}
@media (max-width:991px){
  .container{padding:0 20px}
  .nav__list,.nav__actions .btn--text{display:none}
  .nav-toggle{display:inline-flex}
  .nav__actions{margin-left:auto}
  .hero__inner{grid-template-columns:1fr;gap:32px;padding:56px 20px}
  .hero::after{background:linear-gradient(180deg,rgba(9,42,32,.92) 0%,rgba(9,42,32,.84) 60%,rgba(9,42,32,.9) 100%)}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .card--feature{grid-column:span 2;flex-direction:column}
  .card--feature img{width:100%;aspect-ratio:16/9}
  .card--mid,.card--low{grid-column:span 1}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .compare{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr;gap:32px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .section__head{margin-bottom:28px}
  .matrix{grid-template-columns:1fr}
  .card--feature{grid-column:span 1}
  .card--mid,.card--low{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .kpi-mini{grid-template-columns:1fr 1fr}
  .bars__row{grid-template-columns:110px 1fr 72px;gap:12px;font-size:14px}
  .form-card{padding:22px}
  .footer__grid{grid-template-columns:1fr}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .topbar__inner{justify-content:center;text-align:center}
  .topbar__left{display:none}
  .logo__sub{display:none}
  .hero__actions .btn{width:100%}
  .kpi-mini{grid-template-columns:1fr}
  .hero__points{flex-direction:column;gap:8px}
  .faq__a{padding-left:4px}
  .footer__bottom{justify-content:center;text-align:center}
}

/* roulang page: article */
:root{
  --c-primary:#0F3B2E;
  --c-primary-deep:#092A20;
  --c-primary-soft:#1E6A52;
  --c-accent:#FF6B2C;
  --c-accent-deep:#E85A1C;
  --c-accent-soft:#F5B53F;
  --c-bg:#F6F4EE;
  --c-bg-alt:#EDEAE1;
  --c-surface:#FFFFFF;
  --c-surface-dark:rgba(255,255,255,.06);
  --c-ink:#16211C;
  --c-ink-2:#5A6560;
  --c-ink-3:#8B948F;
  --c-line:#E2DED3;
  --c-line-dark:rgba(255,255,255,.12);
  --ok:#1E8E5A;
  --warn:#C9861A;
  --err:#C0392B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,59,46,.06);
  --sh-2:0 12px 32px -12px rgba(15,59,46,.18);
  --sh-3:0 18px 40px -16px rgba(15,59,46,.26);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
  --sp-section:clamp(56px,8vw,104px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3;color:var(--c-ink)}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-2)}
.btn--primary:hover{background:var(--c-accent-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn--primary:active{transform:translateY(1px);box-shadow:none}
.btn--ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn--ghost:hover{background:rgba(15,59,46,.08);color:var(--c-primary)}
.btn--light{background:#fff;color:var(--c-primary)}
.btn--light:hover{background:#fff;color:var(--c-accent);transform:translateY(-1px)}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;text-decoration:underline;text-underline-offset:3px}
.link-more:hover{color:var(--c-accent)}
.link-more i{transition:transform .2s var(--ease)}
.link-more:hover i{transform:translateX(4px)}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-primary-deep);color:rgba(255,255,255,.78);font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:16px}
.topbar__links{display:flex;align-items:center;gap:18px}
.topbar__links a{color:rgba(255,255,255,.82)}
.topbar__links a:hover{color:var(--c-accent-soft)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(246,244,238,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--c-line);
}
.nav{display:flex;align-items:center;gap:28px;min-height:76px}
.logo{display:inline-flex;align-items:center;gap:12px;color:var(--c-ink)}
.logo:hover{color:var(--c-ink)}
.logo__mark{
  position:relative;width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--c-primary);overflow:hidden;box-shadow:var(--sh-1);
}
.logo__mark::after{
  content:"";position:absolute;left:-8px;top:50%;width:56px;height:9px;
  background:var(--c-accent);transform:rotate(-32deg) translateY(-50%);
}
.logo__text{display:flex;flex-direction:column;line-height:1.15}
.logo__name{font-size:18px;font-weight:700;letter-spacing:-.01em}
.logo__sub{font-size:12px;color:var(--c-ink-3);letter-spacing:.04em}
.nav__list{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav__item{position:relative}
.nav__link{
  display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border-radius:var(--r-md);
  background:none;border:none;color:var(--c-ink-2);font-size:15px;font-weight:600;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav__link:hover{color:var(--c-primary);background:rgba(15,59,46,.06)}
.nav__item.is-active .nav__link{color:var(--c-primary)}
.nav__item.is-active .nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.nav__actions{display:flex;align-items:center;gap:12px}
.nav__actions .nav__link{font-size:15px}
.has-mega{position:relative}
.has-mega:hover .mega,.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translate(-50%,0)}
.mega{
  position:absolute;top:calc(100% + 8px);left:50%;width:800px;
  transform:translate(-50%,-6px);opacity:0;visibility:hidden;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-2);
  padding:26px;display:grid;grid-template-columns:1.1fr 1.1fr 1fr;gap:24px;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  z-index:70;
}
.mega__title{font-size:13px;font-weight:700;color:var(--c-ink-3);letter-spacing:.08em;margin-bottom:12px}
.mega__links li{margin-bottom:8px}
.mega__links a{font-size:14px;color:var(--c-ink-2);display:block;padding:4px 0}
.mega__links a:hover{color:var(--c-accent);transform:translateX(2px)}
.mega__news li{margin-bottom:12px}
.mega__news a{display:block}
.mega__news strong{display:block;font-size:14px;font-weight:600;color:var(--c-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mega__news span{display:block;font-size:12px;color:var(--c-ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mega__card{background:var(--c-bg-alt);border-radius:var(--r-md);overflow:hidden;border:1px solid var(--c-line)}
.mega__card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mega__card-body{padding:12px}
.mega__card-body strong{display:block;font-size:14px;margin-bottom:4px}
.mega__card-body span{font-size:12px;color:var(--c-ink-2)}
.nav__toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--c-line);
  background:#fff;color:var(--c-primary);align-items:center;justify-content:center;
}
.nav__drawer{
  display:none;position:fixed;inset:0;z-index:90;pointer-events:none;
}
.nav__drawer.is-open{pointer-events:auto}
.drawer__mask{position:absolute;inset:0;background:rgba(9,42,32,.55);opacity:0;transition:opacity .25s var(--ease)}
.nav__drawer.is-open .drawer__mask{opacity:1}
.drawer__panel{
  position:absolute;top:0;right:0;width:86%;max-width:360px;height:100%;background:var(--c-bg);
  padding:22px;overflow-y:auto;transform:translateX(100%);transition:transform .28s var(--ease);
  box-shadow:var(--sh-3);
}
.nav__drawer.is-open .drawer__panel{transform:translateX(0)}
.drawer__close{width:40px;height:40px;border-radius:var(--r-md);border:1px solid var(--c-line);background:#fff;color:var(--c-primary)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer__list li{border-bottom:1px solid var(--c-line)}
.drawer__list a{display:block;padding:14px 0;font-size:16px;font-weight:600;color:var(--c-ink)}
.drawer__cta{margin-top:20px}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:22px 0 0;font-size:13px;color:var(--c-ink-3)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{color:var(--c-line)}
.breadcrumb .current{color:var(--c-ink-3);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-head{padding:16px 0 0;max-width:860px}
.article-head__cat{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(15,59,46,.1);color:var(--c-primary);font-size:13px;font-weight:600;margin-bottom:16px;
}
.article-head h1{font-size:44px;margin-bottom:18px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--c-ink-3)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--c-primary-soft)}
.article-cover{margin:32px 0 0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--c-bg-alt)}
.article-cover img{width:100%;aspect-ratio:21/9;object-fit:cover}

/* ---------- 文章主体布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,8fr) minmax(0,3fr);
  gap:48px;align-items:start;padding:var(--sp-section) 0;
}
.article-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:clamp(24px,4vw,48px);box-shadow:var(--sh-1);max-width:860px;
  font-size:17px;line-height:1.9;color:#243029;
}
.article-body p{margin:0 0 1em}
.article-body h2{font-size:34px;margin:40px 0 16px;padding-bottom:10px;position:relative}
.article-body h2::after{content:"";position:absolute;left:0;bottom:0;width:56px;height:3px;border-radius:2px;background:var(--c-accent)}
.article-body h3{font-size:24px;margin:28px 0 12px}
.article-body h4{font-size:20px;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1em;padding-left:4px}
.article-body ul li,.article-body ol li{padding:6px 0 6px 22px;position:relative}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:16px;width:7px;height:7px;border-radius:2px;
  background:var(--c-accent);transform:rotate(45deg);
}
.article-body ol{counter-reset:item}
.article-body ol li{counter-increment:item}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:8px;width:20px;height:20px;border-radius:6px;
  background:rgba(15,59,46,.1);color:var(--c-primary);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;font-family:var(--font-num);
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--c-bg);
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:20px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-ink-3);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-body th{background:var(--c-bg-alt);font-weight:700}
.article-body tbody tr:nth-child(even){background:rgba(237,234,225,.5)}
.article-body a{color:var(--c-primary-soft);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-accent)}
.article-body code{
  font-family:var(--font-num);background:var(--c-bg-alt);padding:2px 6px;border-radius:6px;font-size:15px;
}
.article-empty{
  text-align:center;padding:64px 24px;border:1px dashed var(--c-line);border-radius:var(--r-lg);background:#fff;
}
.article-empty i{font-size:34px;color:var(--c-ink-3);margin-bottom:14px;display:block}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{color:var(--c-ink-2);font-size:15px}
.article-empty .btn{margin-top:18px}

/* ---------- 目录与侧栏 ---------- */
.article-aside{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px}
.toc{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1)}
.toc__title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-ink-3);margin-bottom:14px}
.toc ol{position:relative;padding-left:16px;border-left:1px solid var(--c-line)}
.toc li{margin-bottom:10px}
.toc a{font-size:14px;color:var(--c-ink-2);display:block;line-height:1.6}
.toc a:hover{color:var(--c-accent)}
.toc a.is-current{color:var(--c-primary);font-weight:700}
.aside-card{background:var(--c-primary-deep);border-radius:var(--r-lg);padding:22px;color:rgba(255,255,255,.82)}
.aside-card h4{color:#fff;font-size:17px;margin-bottom:8px}
.aside-card p{font-size:14px;line-height:1.8;margin-bottom:16px}
.aside-card .btn{width:100%}

/* ---------- 标签与分享 ---------- */
.article-foot{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;margin-top:32px;padding-top:24px;border-top:1px solid var(--c-line)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-bg-alt);color:var(--c-ink-2);font-size:13px;border:1px solid var(--c-line);
  transition:all .2s var(--ease);
}
.tag:hover{background:rgba(15,59,46,.1);color:var(--c-primary);border-color:transparent}
.share{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-ink-3)}
.share__btn{
  width:36px;height:36px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;
  color:var(--c-ink-2);display:inline-flex;align-items:center;justify-content:center;transition:all .2s var(--ease);
}
.share__btn:hover{color:var(--c-accent);border-color:var(--c-accent);transform:translateY(-2px)}

/* ---------- 相关推荐 ---------- */
.section{padding:var(--sp-section) 0}
.section--alt{background:var(--c-bg-alt)}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section__head h2{font-size:34px}
.section__head p{color:var(--c-ink-2);font-size:15px;margin:8px 0 0}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.post-card__media{position:relative;background:var(--c-bg-alt)}
.post-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md) var(--r-md) 0 0}
.post-card__badge{
  position:absolute;left:12px;top:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(9,42,32,.86);color:#fff;font-size:12px;font-weight:600;
}
.post-card__body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card__body h3{font-size:16px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__body p{font-size:14px;color:var(--c-ink-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-ink-3);
  display:flex;align-items:center;gap:8px;font-family:var(--font-num);
}

/* ---------- 返回与 CTA 条 ---------- */
.back-row{display:flex;justify-content:center;padding:0 0 40px}
.cta-bar{background:var(--c-primary-deep);position:relative;overflow:hidden}
.cta-bar::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent rgba(255,255,255,.2),transparent);
}
.cta-bar .container{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;padding-top:40px;padding-bottom:40px}
.cta-bar h2{color:#fff;font-size:24px}
.cta-bar p{color:rgba(255,255,255,.72);font-size:15px;margin:6px 0 0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:var(--sp-section)}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer__brand .logo__mark{margin-bottom:14px}
.footer__brand-name{color:#fff;font-size:18px;font-weight:700;margin-bottom:10px}
.footer__brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68);max-width:34ch}
.footer__col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer__links li{margin-bottom:10px}
.footer__links a{color:rgba(255,255,255,.72);font-size:14px;transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.footer__links a:hover{color:#fff;transform:translateX(2px)}
.footer__bottom{
  margin-top:48px;border-top:1px solid var(--c-line-dark);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:1080px}
  .article-head h1{font-size:38px}
  .article-body h2{font-size:30px}
  .nav{gap:18px}
}
@media (max-width:991px){
  .nav__list,.nav__actions .btn{display:none}
  .nav__toggle{display:inline-flex}
  .nav__drawer{display:block}
  .article-layout{grid-template-columns:1fr;gap:32px;padding:56px 0}
  .article-aside{position:static;order:2}
  .toc{display:none}
  .article-body{max-width:none}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .mega{display:none}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .article-head h1{font-size:27px}
  .article-head{padding-top:12px}
  .article-body{padding:22px;font-size:16px}
  .article-body h2{font-size:22px;margin-top:32px}
  .article-body h3{font-size:19px}
  .article-body h4{font-size:17px}
  .section__head{flex-direction:column;align-items:flex-start;gap:8px}
  .section__head h2{font-size:24px}
  .grid-3{grid-template-columns:1fr;gap:16px}
  .breadcrumb .current{max-width:100%;white-space:normal}
  .cta-bar .container{flex-direction:column;align-items:flex-start}
  .share{width:100%}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .topbar .container{flex-direction:column;align-items:flex-start;padding:8px 16px;gap:6px}
  .article-cover img{aspect-ratio:16/9}
  .btn{width:100%}
  .btn--inline{width:auto}
  .footer__grid{grid-template-columns:1fr;gap:24px}
  .footer__bottom{flex-direction:column}
  .article-foot{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --c-primary:#0F3B2E;
  --c-primary-deep:#092A20;
  --c-primary-soft:#1E6A52;
  --c-accent:#FF6B2C;
  --c-accent-soft:#F5B53F;
  --c-bg:#F6F4EE;
  --c-bg-alt:#EDEAE1;
  --c-surface:#FFFFFF;
  --c-surface-dark:rgba(255,255,255,.06);
  --c-ink:#16211C;
  --c-ink-2:#5A6560;
  --c-ink-3:#8B948F;
  --c-line:#E2DED3;
  --c-line-dark:rgba(255,255,255,.12);
  --c-ok:#1E8E5A;
  --c-warn:#C9861A;
  --c-err:#C0392B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,59,46,.06);
  --sh-2:0 12px 32px -12px rgba(15,59,46,.18);
  --sh-3:0 18px 40px -16px rgba(15,59,46,.26);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
  --sec-gap:clamp(56px,8vw,104px);
}
*,*::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:17px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-accent);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.01em;line-height:1.3;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;line-height:1.2;
  border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn i{font-size:14px;}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn--primary:hover{background:#EA5A18;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:translateY(1px);box-shadow:none;}
.btn--ghost{border-color:rgba(15,59,46,.32);color:var(--c-primary);background:transparent;}
.btn--ghost:hover{background:rgba(15,59,46,.08);color:var(--c-primary);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(1px);}
.btn--light{background:#fff;color:var(--c-primary);}
.btn--light:hover{background:#fff;color:var(--c-primary);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--outline-light{border-color:rgba(255,255,255,.45);color:#fff;background:transparent;}
.btn--outline-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.12);}
.btn--link{padding:0;border-radius:0;color:var(--c-primary);border-bottom:1px solid rgba(15,59,46,.35);}
.btn--link:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}
.btn.is-disabled,.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(15,59,46,.08);color:var(--c-primary);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.tag--accent{background:rgba(255,107,44,.12);color:#C64A12;}
.tag--gold{background:rgba(245,181,63,.2);color:#9A6B0C;}
.tag--dark{background:var(--c-surface-dark);color:#fff;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;background:rgba(30,142,90,.12);color:var(--c-ok);
}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-primary-deep);color:rgba(255,255,255,.78);font-size:13px;}
.topbar__inner{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:36px;flex-wrap:wrap;}
.topbar__links{display:flex;align-items:center;gap:18px;}
.topbar__links a{color:rgba(255,255,255,.78);}
.topbar__links a:hover{color:#fff;}

/* ---------- 头部与导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,238,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
}
.nav{display:flex;align-items:center;gap:24px;min-height:76px;}
.logo{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.logo__mark{
  position:relative;width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:var(--c-primary);overflow:hidden;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
}
.logo__mark::before{
  content:"";position:absolute;inset:-6px -14px auto auto;width:34px;height:52px;
  background:var(--c-accent);transform:rotate(24deg);
}
.logo__mark::after{
  content:"";position:absolute;left:0;bottom:0;width:60%;height:5px;
  background:var(--c-accent-soft);
}
.logo__text{display:flex;flex-direction:column;line-height:1.2;}
.logo__name{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
.logo__sub{font-size:12px;color:var(--c-ink-3);letter-spacing:.04em;}

.nav__list{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav__item{position:relative;}
.nav__link{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;color:var(--c-ink-2);
  position:relative;white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav__link:hover{color:var(--c-primary);background:rgba(15,59,46,.06);}
.nav__item.is-active > .nav__link{color:var(--c-primary);}
.nav__item.is-active > .nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.nav__link i{font-size:11px;transition:transform .2s var(--ease);}

.nav__actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav__burger{
  display:none;width:42px;height:42px;border-radius:var(--r-md);
  background:rgba(15,59,46,.06);color:var(--c-primary);font-size:17px;
}

/* Mega 面板 */
.has-mega .mega{
  position:absolute;top:calc(100% + 8px);right:0;width:760px;
  background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-2);
  border:1px solid var(--c-line);
  padding:24px;display:grid;grid-template-columns:1.1fr 1.1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  z-index:80;
}
.has-mega:hover .mega,.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0);}
.has-mega:hover .nav__link i,.has-mega:focus-within .nav__link i{transform:rotate(180deg);}
.mega__title{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--c-ink-3);margin-bottom:12px;text-transform:uppercase;}
.mega__links li{margin-bottom:4px;}
.mega__links a{display:block;font-size:14px;color:var(--c-ink-2);padding:6px 8px;border-radius:var(--r-sm);}
.mega__links a:hover{background:var(--c-bg-alt);color:var(--c-primary);}
.mega__news li{margin-bottom:12px;}
.mega__news a{display:block;padding:10px 12px;border-radius:var(--r-md);border:1px solid var(--c-line);}
.mega__news a:hover{border-color:rgba(15,59,46,.3);background:var(--c-bg);}
.mega__news strong{display:block;font-size:14px;color:var(--c-ink);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.mega__news span{display:block;font-size:12px;color:var(--c-ink-3);margin-top:4px;}
.mega__card{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--c-line);background:var(--c-bg);}
.mega__card img{aspect-ratio:16/10;object-fit:cover;width:100%;background:var(--c-bg-alt);}
.mega__card-body{padding:12px;}
.mega__card-body strong{display:block;font-size:14px;color:var(--c-ink);}
.mega__card-body p{font-size:12.5px;color:var(--c-ink-3);margin:6px 0 0;line-height:1.6;}

/* ---------- Hero（图文并列型） ---------- */
.hero{padding:clamp(40px,6vw,80px) 0 clamp(48px,6vw,72px);position:relative;overflow:hidden;}
.hero::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:100%;
  background:radial-gradient(900px 380px at 12% 0%,rgba(15,59,46,.07),transparent 70%);
  pointer-events:none;
}
.hero__grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero__eyebrow{margin-bottom:18px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.hero h1{font-size:44px;line-height:1.24;margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--c-primary);position:relative;}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;
  background:rgba(255,107,44,.22);border-radius:4px;z-index:-1;
}
.hero__lead{font-size:18px;max-width:640px;margin-bottom:28px;color:var(--c-ink-2);}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px;}
.hero__points{display:flex;gap:22px;flex-wrap:wrap;font-size:14px;color:var(--c-ink-2);}
.hero__points span{display:inline-flex;align-items:center;gap:8px;}
.hero__points i{color:var(--c-accent);font-size:13px;}

.hero__media{position:relative;}
.hero__media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);background:var(--c-bg-alt);
  box-shadow:var(--sh-2);
}
.hero__media::after{
  content:"";position:absolute;inset:auto -14px -14px auto;width:120px;height:120px;
  border-radius:var(--r-lg);background:linear-gradient(135deg,rgba(255,107,44,.22),rgba(15,59,46,.12));
  z-index:-1;
}
.hero__float{
  position:absolute;left:-18px;bottom:22px;
  background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-2);
  padding:14px 18px;border:1px solid var(--c-line);min-width:190px;
}
.hero__float .num{display:block;font-size:26px;font-weight:700;color:var(--c-primary);line-height:1.1;}
.hero__float small{display:block;font-size:12.5px;color:var(--c-ink-3);margin-top:4px;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-gap) 0;}
.section--alt{background:var(--c-bg-alt);}
.section--dark{background:var(--c-primary-deep);color:rgba(255,255,255,.78);}
.section--dark h2,.section--dark h3{color:#fff;}
.section--dark .section__desc{color:rgba(255,255,255,.7);}
.section__head{max-width:820px;margin-bottom:44px;}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section__head h2{font-size:34px;margin-bottom:14px;}
.section__desc{font-size:16.5px;color:var(--c-ink-2);}
.section__kicker{display:block;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-accent);margin-bottom:12px;}

/* ---------- 编号清单 ---------- */
.steps{max-width:820px;margin:0 auto;}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:24px;
  padding:26px 0;border-bottom:1px solid var(--c-line);
  transition:transform .25s var(--ease);
}
.step:first-child{border-top:1px solid var(--c-line);}
.step:hover{transform:translateX(4px);}
.step__no{
  width:56px;height:56px;border-radius:var(--r-md);
  display:flex;align-items:center;justify-content:center;
  background:rgba(15,59,46,.08);color:var(--c-primary);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:700;
}
.step:hover .step__no{background:var(--c-accent);color:#fff;}
.step__body h3{font-size:20px;margin-bottom:8px;}
.step__body p{font-size:15.5px;color:var(--c-ink-2);margin:0;}
.step__meta{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--c-ink-3);margin-top:10px;}

/* ---------- 要点卡 ---------- */
.point-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.point-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  position:relative;overflow:hidden;
}
.point-card::before{
  content:"";position:absolute;left:0;top:0;width:3px;height:100%;
  background:var(--c-accent);transform:scaleY(0);transform-origin:top;
  transition:transform .25s var(--ease);
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(15,59,46,.18);}
.point-card:hover::before{transform:scaleY(1);}
.point-card__icon{
  width:44px;height:44px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;
  background:rgba(15,59,46,.08);color:var(--c-primary);font-size:17px;margin-bottom:18px;
}
.point-card h3{font-size:20px;margin-bottom:10px;}
.point-card p{font-size:15.5px;margin:0 0 14px;}
.point-card ul{display:flex;flex-direction:column;gap:6px;}
.point-card li{position:relative;padding-left:20px;font-size:14.5px;color:var(--c-ink-2);}
.point-card li::before{
  content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:2px;
  background:var(--c-accent-soft);
}

/* ---------- 分隔斜线 ---------- */
.ruler{
  height:6px;width:100%;
  background-image:repeating-linear-gradient(115deg,rgba(15,59,46,.18) 0 5px,transparent 5px 16px);
  border-radius:3px;
}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;}
.faq__item{border-bottom:1px solid var(--c-line);}
.faq__item:first-child{border-top:1px solid var(--c-line);}
.faq__q{
  width:100%;display:flex;align-items:flex-start;gap:16px;
  padding:22px 0;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-primary);
  transition:color .2s var(--ease);
}
.faq__q:hover{color:var(--c-accent);}
.faq__q .no{
  flex-shrink:0;width:28px;height:28px;border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;
  background:rgba(15,59,46,.08);color:var(--c-primary);
  font-family:var(--font-num);font-size:13px;font-weight:700;margin-top:2px;
}
.faq__q .txt{flex:1;}
.faq__q .arrow{color:var(--c-ink-3);font-size:13px;margin-top:6px;transition:transform .2s var(--ease);}
.faq__item.is-open .faq__q{color:var(--c-accent);}
.faq__item.is-open .faq__q .arrow{transform:rotate(180deg);color:var(--c-accent);}
.faq__a{display:none;padding:0 44px 20px 44px;font-size:15px;line-height:1.9;color:var(--c-ink-2);}
.faq__item.is-open .faq__a{display:block;}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--c-primary-deep);
  background-image:linear-gradient(90deg,rgba(9,42,32,.94),rgba(9,42,32,.78)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-radius:var(--r-lg);
  padding:clamp(32px,5vw,52px);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  color:rgba(255,255,255,.8);
  box-shadow:var(--sh-2);
}
.cta-band h3{font-size:26px;color:#fff;margin-bottom:10px;}
.cta-band p{margin:0;font-size:15.5px;max-width:640px;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:var(--sec-gap);}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer__brand{display:flex;flex-direction:column;gap:12px;align-items:flex-start;}
.footer__brand .logo__mark{width:36px;height:36px;}
.footer__brand-name{font-size:17px;font-weight:700;color:#fff;}
.footer__brand p{font-size:14px;line-height:1.8;margin:0;color:rgba(255,255,255,.66);}
.footer__col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer__links{display:flex;flex-direction:column;gap:10px;}
.footer__links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block;}
.footer__links a:hover{color:#fff;transform:translateX(2px);}
.footer__bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--c-line-dark);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:1080px;}
  .has-mega .mega{width:700px;}
}
@media (max-width:991px){
  .nav{flex-wrap:wrap;min-height:68px;gap:12px;}
  .nav__burger{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .nav__list{
    display:none;order:5;width:100%;flex-direction:column;align-items:stretch;
    gap:2px;margin:0 0 16px;padding:12px;background:#fff;border:1px solid var(--c-line);
    border-radius:var(--r-lg);box-shadow:var(--sh-2);
  }
  .nav__list.is-open{display:flex;}
  .nav__item{width:100%;}
  .nav__link{width:100%;justify-content:space-between;padding:12px 14px;}
  .nav__item.is-active > .nav__link::after{display:none;}
  .nav__item.is-active > .nav__link{background:rgba(15,59,46,.08);color:var(--c-primary);}
  .nav__actions{order:4;margin-left:0;width:100%;display:none;padding-bottom:16px;}
  .nav__actions.is-open{display:flex;}
  .nav__actions .btn--primary{width:100%;}
  .has-mega{width:100%;}
  .has-mega .mega{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border-radius:var(--r-md);grid-template-columns:1fr;
    padding:16px;display:none;margin-top:6px;
  }
  .has-mega.is-open .mega{display:grid;}
  .has-mega:hover .mega{display:none;}
  .has-mega.is-open:hover .mega{display:grid;}
  .hero__grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:34px;}
  .hero__media{order:-1;}
  .hero__media img{aspect-ratio:16/9;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85;}
  .container{padding:0 20px;}
  .hero h1{font-size:28px;}
  .hero__lead{font-size:16.5px;}
  .section__head h2{font-size:24px;}
  .point-grid{grid-template-columns:1fr;}
  .step{grid-template-columns:48px 1fr;gap:16px;padding:22px 0;}
  .step__no{width:44px;height:44px;font-size:18px;}
  .step__body h3{font-size:18px;}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:flex-start;}
  .cta-band h3{font-size:21px;}
  .faq__a{padding-left:0;padding-right:0;}
  .topbar__inner{justify-content:center;}
  .footer__grid{grid-template-columns:1fr;}
  .footer__bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  .hero h1{font-size:26px;}
  .hero__actions{flex-direction:column;align-items:stretch;}
  .hero__actions .btn{width:100%;}
  .hero__float{left:0;bottom:12px;padding:10px 14px;min-width:160px;}
  .hero__float .num{font-size:22px;}
  .cta-band__actions{width:100%;flex-direction:column;}
  .cta-band__actions .btn{width:100%;}
  .logo__sub{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --c-primary:#0F3B2E;
  --c-primary-deep:#092A20;
  --c-primary-soft:#1E6A52;
  --c-accent:#FF6B2C;
  --c-accent-soft:#F5B53F;
  --c-bg:#F6F4EE;
  --c-bg-alt:#EDEAE1;
  --c-surface:#FFFFFF;
  --c-surface-dark:rgba(255,255,255,.06);
  --c-ink:#16211C;
  --c-ink-2:#5A6560;
  --c-ink-3:#8B948F;
  --c-line:#E2DED3;
  --c-ok:#1E8E5A;
  --c-warn:#C9861A;
  --c-err:#C0392B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,59,46,.06);
  --sh-2:0 12px 32px -12px rgba(15,59,46,.18);
  --sh-3:0 18px 40px -16px rgba(15,59,46,.26);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.01em;line-height:1.3}
h1{font-size:clamp(26px,4.2vw,44px)}
h2{font-size:clamp(22px,3vw,34px)}
h3{font-size:clamp(19px,2.2vw,24px)}
h4{font-size:clamp(17px,1.8vw,20px)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-accent)}
img{max-width:100%;display:block;border-radius:var(--r-md);background:var(--c-bg-alt)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:clamp(56px,8vw,104px) 0}
.section--alt{background:var(--c-bg-alt)}
.section__head{max-width:780px;margin:0 auto clamp(28px,4vw,44px);text-align:center}
.section__head p{margin-top:14px;font-size:16px;color:var(--c-ink-2)}
.eyebrow{
  display:inline-block;margin-bottom:14px;padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(15,59,46,.08);color:var(--c-primary);
  font-size:13px;font-weight:700;letter-spacing:.04em;
}
.lead{max-width:760px;font-size:17px;line-height:1.9}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border:1px solid transparent;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
}
.btn i{font-size:14px}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px -10px rgba(255,107,44,.7)}
.btn--primary:hover{background:#F15C1B;color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(255,107,44,.8)}
.btn--primary:active{transform:translateY(1px);box-shadow:none}
.btn--ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn--ghost:hover{background:rgba(15,59,46,.08);color:var(--c-primary);transform:translateY(-1px)}
.btn--ghost:active{transform:translateY(1px)}
.btn--light{background:#fff;color:var(--c-primary)}
.btn--light:hover{background:#F6F4EE;color:var(--c-primary);transform:translateY(-1px)}
.btn--block{width:100%}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.link-arrow:hover{color:var(--c-accent)}
.link-arrow i{transition:transform .2s var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,238,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
}
.nav{display:flex;align-items:center;gap:28px;min-height:76px;flex-wrap:wrap}
.nav__checkbox{position:absolute;opacity:0;pointer-events:none}
.logo{display:flex;align-items:center;gap:12px;color:var(--c-ink)}
.logo:hover{color:var(--c-ink)}
.logo__mark{width:30px;height:30px;border-radius:9px;background:var(--c-primary);position:relative;overflow:hidden;flex:0 0 auto}
.logo__mark::after{content:"";position:absolute;inset:0;background:linear-gradient(112deg,transparent 44%,var(--c-accent) 44%,var(--c-accent) 66%,transparent 66%)}
.logo__text{display:flex;flex-direction:column;line-height:1.15}
.logo__name{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em}
.logo__sub{font-size:12px;color:var(--c-ink-3)}
.nav__list{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav__item{position:relative}
.nav__link{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border:0;background:transparent;border-radius:var(--r-md);
  font-size:15px;font-weight:600;color:var(--c-ink-2);cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav__link:hover{background:rgba(15,59,46,.07);color:var(--c-primary)}
.nav__item.is-active .nav__link{color:var(--c-primary)}
.nav__item.is-active .nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.nav__actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.mega-toggle i{font-size:11px;transition:transform .2s var(--ease)}
.nav__item.has-mega:hover .mega-toggle i,
.nav__item.has-mega:focus-within .mega-toggle i{transform:rotate(180deg)}
.mega{
  position:absolute;top:calc(100% + 8px);right:0;width:780px;max-width:calc(100vw - 48px);
  display:grid;grid-template-columns:1.1fr 1.2fr 1fr;gap:24px;
  padding:24px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.nav__item.has-mega:hover .mega,
.nav__item.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega__title{font-size:13px;font-weight:700;color:var(--c-ink-3);letter-spacing:.06em;margin-bottom:12px}
.mega__links li + li{margin-top:8px}
.mega__links a{font-size:14px;color:var(--c-ink-2)}
.mega__links a:hover{color:var(--c-accent)}
.mega__news li + li{margin-top:14px}
.mega__news a{display:block}
.mega__news strong{display:block;font-size:14px;font-weight:600;color:var(--c-ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mega__news span{display:block;font-size:12px;color:var(--c-ink-3);margin-top:2px}
.mega__card{display:block;border-radius:var(--r-md);overflow:hidden;background:var(--c-bg-alt)}
.mega__card img{aspect-ratio:16/9;object-fit:cover;border-radius:0;width:100%}
.mega__card b{display:block;padding:10px 12px 4px;font-size:14px;color:var(--c-ink)}
.mega__card em{display:block;padding:0 12px 12px;font-style:normal;font-size:12px;color:var(--c-ink-3)}
.nav__burger{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border:1px solid var(--c-line);border-radius:var(--r-md);
  background:var(--c-surface);color:var(--c-primary);cursor:pointer;
}

/* ============ Hero（居中窄栏） ============ */
.hero--center{
  padding:clamp(56px,7vw,96px) 0 clamp(44px,5vw,64px);
  background:linear-gradient(180deg,var(--c-bg-alt) 0%,var(--c-bg) 100%);
  border-bottom:1px solid var(--c-line);
}
.hero__inner{max-width:840px;margin:0 auto;text-align:center}
.hero__inner h1{margin-bottom:18px}
.hero__sub{font-size:clamp(16px,1.8vw,18px);line-height:1.85;color:var(--c-ink-2);max-width:680px;margin:0 auto}
.hero__meta{
  display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;
  margin-top:22px;font-size:13px;color:var(--c-ink-3);
}
.hero__meta span{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.hero__meta .dot{color:var(--c-line)}
.hero__cta{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:30px}

/* ============ 步骤条 ============ */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px}
.steps::before{
  content:"";position:absolute;top:23px;left:12%;right:12%;height:2px;
  background:repeating-linear-gradient(90deg,var(--c-line) 0 10px,transparent 10px 18px);
}
.step{position:relative;text-align:center;padding:0 6px}
.step__node{
  position:relative;z-index:1;width:46px;height:46px;margin:0 auto 16px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-surface);border:2px solid var(--c-primary);border-radius:var(--r-pill);
  font-family:var(--font-num);font-size:17px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.step:nth-child(4) .step__node{border-color:var(--c-accent);color:var(--c-accent)}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:15px;line-height:1.8;color:var(--c-ink-2);margin:0}

/* ============ 双列卡矩阵（左大右小错位） ============ */
.matrix{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.card__body{padding:22px 24px 24px}
.card__tag{
  display:inline-block;margin-bottom:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(15,59,46,.1);color:var(--c-primary);font-size:12px;font-weight:700;
}
.card__body h3{margin-bottom:10px}
.card__body p{font-size:15px;line-height:1.8;color:var(--c-ink-2)}
.card--big .card__media img{aspect-ratio:16/9}
.card--big .card__body{padding:26px 28px 28px}
.card--big .card__body h3{font-size:26px}
.matrix__side{display:grid;gap:24px}
.matrix__side .card:last-child{margin-top:36px}
.matrix__side .card__body{padding:18px 20px 20px}
.matrix__side .card__body h3{font-size:19px}
.matrix__side .card__body p{font-size:14px}
.mini-arrow{display:inline-flex;align-items:center;gap:8px;margin-top:14px;font-size:14px;font-weight:700;color:var(--c-primary)}
.card:hover .mini-arrow i{transform:translateX(4px)}
.mini-arrow i{transition:transform .2s var(--ease)}

/* ============ 数据条 ============ */
.bars{display:grid;gap:22px;max-width:900px;margin:0 auto}
.bar-row{display:grid;grid-template-columns:170px 1fr 72px;align-items:center;gap:18px}
.bar-row .bar-label{font-size:15px;font-weight:600;color:var(--c-ink)}
.bar-track{height:10px;border-radius:var(--r-pill);background:var(--c-line);overflow:hidden}
.bar-fill{height:100%;border-radius:var(--r-pill);background:var(--c-primary);width:0;transition:width .8s var(--ease)}
.bar-fill--accent{background:var(--c-accent)}
.bar-value{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:15px;font-weight:700;color:var(--c-primary);text-align:right}

/* ============ FAQ ============ */
.faq{max-width:820px;margin:0 auto}
.faq__item{border-bottom:1px solid var(--c-line);background:transparent}
.faq__item:first-child{border-top:1px solid var(--c-line)}
.faq__q{
  display:flex;align-items:center;gap:14px;width:100%;
  padding:20px 4px;background:transparent;border:0;cursor:pointer;
  font-size:17px;font-weight:700;color:var(--c-primary);text-align:left;
  list-style:none;
}
.faq__q::-webkit-details-marker{display:none}
.faq__num{
  flex:0 0 auto;width:28px;height:28px;display:flex;align-items:center;justify-content:center;
  background:rgba(15,59,46,.09);border-radius:var(--r-sm);
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--c-primary);
}
.faq__q i{margin-left:auto;font-size:13px;color:var(--c-ink-3);transition:transform .2s var(--ease)}
.faq__item[open] .faq__q i{transform:rotate(180deg)}
.faq__a{padding:0 4px 20px 46px;font-size:15px;line-height:1.9;color:var(--c-ink-2)}

/* ============ 表单 ============ */
.form-wrap{max-width:640px;margin:0 auto}
.form-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:clamp(24px,4vw,36px);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:700;color:var(--c-ink);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;padding:14px;border:1px solid var(--c-line);border-radius:var(--r-md);
  background:#fff;color:var(--c-ink);font-size:15px;min-height:44px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,59,46,.18);
}
.field.is-error input,.field.is-error select{border-color:var(--c-err);background:rgba(192,57,43,.06)}
.field__err{display:block;margin-top:6px;font-size:12px;color:var(--c-err)}
.check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-ink-2);line-height:1.7}
.check input{width:18px;height:18px;min-height:0;flex:0 0 auto;margin-top:3px;accent-color:var(--c-primary)}
.form-note{margin-top:16px;font-size:13px;color:var(--c-ink-3);text-align:center}

/* ============ CTA 条 ============ */
.cta{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background-image:linear-gradient(90deg,rgba(9,42,32,.92),rgba(9,42,32,.78)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:clamp(32px,5vw,48px);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta h2{color:#fff;font-size:clamp(20px,2.6vw,28px);margin-bottom:8px}
.cta p{color:rgba(255,255,255,.76);font-size:15px;margin:0;max-width:560px}
.cta__actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.72);padding:clamp(48px,6vw,72px) 0 0;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer__brand .logo__mark{margin-bottom:14px}
.footer__brand-name{font-size:18px;font-weight:700;color:#fff;margin-bottom:10px}
.footer__brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:320px}
.footer__col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer__links li + li{margin-top:10px}
.footer__links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.footer__links a:hover{color:#fff;transform:translateX(2px)}
.footer__bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:1080px}
  .mega{width:680px}
}
@media (max-width:991px){
  .nav{gap:16px}
  .nav__burger{display:inline-flex;margin-left:auto;order:2}
  .logo{order:1}
  .nav__list,.nav__actions{
    display:none;order:3;width:100%;flex-direction:column;align-items:stretch;gap:4px;
    padding-top:14px;margin-left:0;
  }
  .nav__checkbox:checked ~ .nav__list,
  .nav__checkbox:checked ~ .nav__actions{display:flex}
  .nav__actions{padding-bottom:8px}
  .nav__item.is-active .nav__link::after{display:none}
  .nav__item.is-active .nav__link{background:rgba(15,59,46,.08)}
  .nav__link{justify-content:space-between;width:100%}
  .mega{display:none}
  .matrix{grid-template-columns:1fr}
  .matrix__side{grid-template-columns:1fr 1fr}
  .matrix__side .card:last-child{margin-top:0}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .steps{grid-template-columns:1fr;gap:28px}
  .steps::before{left:23px;right:auto;top:12px;bottom:12px;width:2px;height:auto;background:repeating-linear-gradient(180deg,var(--c-line) 0 10px,transparent 10px 18px)}
  .step{display:grid;grid-template-columns:46px 1fr;gap:16px;text-align:left;padding:0}
  .step__node{margin:0}
  .step h3{margin-bottom:6px}
  .matrix__side{grid-template-columns:1fr}
  .bar-row{grid-template-columns:1fr;gap:8px}
  .bar-value{text-align:left}
  .cta{flex-direction:column;align-items:flex-start}
  .footer__grid{grid-template-columns:1fr}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .hero__cta .btn{width:100%}
  .cta__actions{width:100%}
  .cta__actions .btn{width:100%}
  .section{padding:56px 0}
  .faq__a{padding-left:4px}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#0F3B2E;
  --c-primary-deep:#092A20;
  --c-primary-soft:#1E6A52;
  --c-accent:#FF6B2C;
  --c-accent-soft:#F5B53F;
  --c-bg:#F6F4EE;
  --c-bg-alt:#EDEAE1;
  --c-surface:#FFFFFF;
  --c-surface-dark:rgba(255,255,255,.06);
  --c-ink:#16211C;
  --c-ink-2:#5A6560;
  --c-ink-3:#8B948F;
  --c-line:#E2DED3;
  --c-line-dark:rgba(255,255,255,.12);
  --c-success:#1E8E5A;
  --c-warn:#C9861A;
  --c-error:#C0392B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,59,46,.06);
  --sh-2:0 12px 32px -12px rgba(15,59,46,.18);
  --sh-3:0 18px 40px -16px rgba(15,59,46,.26);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sec-gap:clamp(56px,8vw,104px);
}

/* ============ 基础 reset ============ */
*,*::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:17px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{list-style:none;padding:0;}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s cubic-bezier(.2,.7,.2,1);}
a:hover{color:var(--c-accent);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1{font-size:44px;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
h2{font-size:34px;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
h3{font-size:24px;line-height:1.35;font-weight:700;letter-spacing:-.01em;}
h4{font-size:20px;line-height:1.4;font-weight:700;}
p{color:var(--c-ink-2);}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:var(--r-sm);}
::selection{background:rgba(255,107,44,.24);}

/* ============ 容器与通用 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-gap) 0;}
.section--alt{background:var(--c-bg-alt);}
.section--dark{background:var(--c-primary-deep);color:#fff;}
.section__head{max-width:820px;margin-bottom:40px;}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section__head h2{margin-bottom:12px;}
.section__head p{font-size:17px;max-width:820px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-primary-soft);
  background:rgba(15,59,46,.08);
  padding:6px 14px;border-radius:var(--r-pill);
  margin-bottom:18px;
}
.section--dark .eyebrow{color:var(--c-accent-soft);background:rgba(255,255,255,.08);}
.lead{font-size:18px;line-height:1.9;color:var(--c-ink-2);max-width:820px;}
.txt-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1.2;
  border:1px solid transparent;
  transition:transform .2s cubic-bezier(.2,.7,.2,1),box-shadow .2s cubic-bezier(.2,.7,.2,1),
             background-color .2s cubic-bezier(.2,.7,.2,1),color .2s cubic-bezier(.2,.7,.2,1),
             border-color .2s cubic-bezier(.2,.7,.2,1);
}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-2);}
.btn--primary:hover{background:#e85c1f;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn--primary:active{transform:translateY(1px);box-shadow:none;}
.btn--ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn--ghost:hover{background:rgba(15,59,46,.08);color:var(--c-primary);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(1px);}
.btn--light{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.04);}
.btn--light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}
.btn--link{color:var(--c-primary);padding:4px 0;font-weight:700;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.btn--link:hover{color:var(--c-accent);}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:700;
  background:rgba(15,59,46,.10);color:var(--c-primary);
}
.tag--accent{background:rgba(255,107,44,.14);color:#c3481a;}
.tag--light{background:rgba(255,255,255,.14);color:#fff;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;font-family:var(--font-num);
}
.badge--ok{background:rgba(30,142,90,.12);color:var(--c-success);}
.badge--warn{background:rgba(201,134,26,.12);color:var(--c-warn);}
.badge--err{background:rgba(192,57,43,.12);color:var(--c-error);}

/* ============ 顶部 header / 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,238,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.logo{display:inline-flex;align-items:center;gap:12px;color:var(--c-ink);}
.logo:hover{color:var(--c-ink);}
.logo__mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:10px;
  background:var(--c-primary);position:relative;overflow:hidden;display:inline-block;
}
.logo__mark::before{
  content:"";position:absolute;top:-6px;left:14px;width:9px;height:52px;
  background:var(--c-accent);transform:rotate(22deg);
}
.logo__mark::after{
  content:"";position:absolute;bottom:6px;left:6px;width:12px;height:3px;
  background:var(--c-accent-soft);border-radius:2px;
}
.logo__text{display:flex;flex-direction:column;line-height:1.2;}
.logo__name{font-size:17px;font-weight:700;letter-spacing:-.01em;}
.logo__sub{font-size:12px;color:var(--c-ink-3);letter-spacing:.04em;}
.nav__panel{display:flex;align-items:center;gap:26px;}
.nav__list{display:flex;align-items:center;gap:4px;}
.nav__item{position:relative;}
.nav__link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 13px;border-radius:var(--r-pill);
  font-size:15px;color:var(--c-ink);font-weight:500;
  transition:background-color .2s,color .2s;
}
.nav__link:hover{background:rgba(15,59,46,.07);color:var(--c-primary);}
.nav__item.is-active > .nav__link{color:var(--c-primary);font-weight:700;}
.nav__item.is-active > .nav__link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:-2px;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.nav__actions{display:flex;align-items:center;gap:14px;}
.nav__actions .btn--primary{padding:10px 20px;font-size:14px;}

/* Mega 面板 */
.has-mega > .mega-toggle{cursor:pointer;}
.mega{
  position:absolute;top:calc(100% + 10px);right:0;width:820px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-2);
  padding:24px;display:grid;grid-template-columns:1.1fr 1.1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s cubic-bezier(.2,.7,.2,1),transform .2s cubic-bezier(.2,.7,.2,1),visibility .2s;
  z-index:90;
}
.has-mega:hover .mega,
.has-mega:focus-within .mega,
.has-mega.is-open .mega{opacity:1;visibility:visible;transform:translateY(0);}
.mega__title{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--c-ink-3);margin-bottom:12px;}
.mega__links li{margin-bottom:8px;}
.mega__links a{font-size:14px;color:var(--c-ink-2);}
.mega__links a:hover{color:var(--c-accent);}
.mega__news li{margin-bottom:12px;}
.mega__news a{display:block;}
.mega__news strong{display:block;font-size:14px;font-weight:600;color:var(--c-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.mega__news span{display:block;font-size:12px;color:var(--c-ink-3);}
.mega__news a:hover strong{color:var(--c-accent);}
.mega__card{
  display:block;border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;background:var(--c-bg);
}
.mega__card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--c-bg-alt);}
.mega__card-body{padding:12px 14px 14px;}
.mega__card-body strong{display:block;font-size:14px;color:var(--c-ink);margin-bottom:4px;}
.mega__card-body span{font-size:12px;color:var(--c-ink-3);line-height:1.6;display:block;}
.mega__card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);transition:.2s;}
.nav__burger{display:none;width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--c-line);background:var(--c-surface);}
.nav__burger span{display:block;width:18px;height:2px;background:var(--c-ink);margin:4px auto;border-radius:2px;transition:.2s;}
.nav__burger[aria-expanded="true"] span:nth-child(1){transform:translateY(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(-6px) rotate(-45deg);}

/* ============ 深色 Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--c-primary-deep);color:#fff;}
.hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.34;
}
.hero--dark::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(9,42,32,.84) 0%,rgba(9,42,32,.80) 55%,rgba(9,42,32,.90) 100%);
}
.hero__inner{position:relative;z-index:2;padding:clamp(40px,6vw,72px) 24px clamp(48px,7vw,84px);}
.crumb{font-size:13px;color:rgba(255,255,255,.66);margin-bottom:22px;}
.crumb a{color:rgba(255,255,255,.76);}
.crumb a:hover{color:var(--c-accent-soft);}
.crumb span{margin:0 8px;color:rgba(255,255,255,.4);}
.hero__grid{display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center;}
.hero h1{color:#fff;margin-bottom:18px;}
.hero__sub{font-size:18px;line-height:1.9;color:rgba(255,255,255,.82);max-width:640px;margin-bottom:26px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero__side{
  background:var(--c-surface-dark);
  border:1px solid var(--c-line-dark);
  border-radius:var(--r-lg);
  padding:24px;
  backdrop-filter:blur(4px);
}
.hero__side h2{font-size:17px;color:#fff;margin-bottom:16px;letter-spacing:0;}
.hero__facts li{
  display:flex;justify-content:space-between;gap:14px;
  padding:11px 0;border-bottom:1px dashed var(--c-line-dark);
  font-size:14px;color:rgba(255,255,255,.78);
}
.hero__facts li:last-child{border-bottom:0;}
.hero__facts strong{color:var(--c-accent-soft);font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:700;}

/* ============ 对照表 ============ */
.table-wrap{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;
}
.ctable{width:100%;border-collapse:collapse;}
.ctable caption{text-align:left;padding:20px 24px 6px;font-size:14px;color:var(--c-ink-3);}
.ctable thead th{
  background:var(--c-primary);color:#fff;
  font-size:14px;font-weight:700;text-align:left;
  padding:16px 24px;letter-spacing:.02em;
}
.ctable tbody tr:nth-child(odd){background:var(--c-bg);}
.ctable tbody tr:nth-child(even){background:var(--c-bg-alt);}
.ctable tbody tr{transition:background-color .2s;}
.ctable tbody tr:hover{background:rgba(255,107,44,.07);}
.ctable td{
  padding:18px 24px;font-size:15px;line-height:1.8;
  color:var(--c-ink-2);border-top:1px solid var(--c-line);
  vertical-align:top;
}
.ctable td:first-child{font-weight:700;color:var(--c-ink);width:22%;}
.ctable td:last-child{width:40%;}
.ctable__note{
  display:flex;gap:10px;align-items:flex-start;
  margin-top:18px;font-size:14px;color:var(--c-ink-3);
}
.ctable__note i{color:var(--c-primary-soft);margin-top:5px;}

/* ============ 折叠面板 ============ */
.acc-list{border-top:1px solid var(--c-line);}
.acc{
  border-bottom:1px solid var(--c-line);
  background:transparent;
}
.acc summary{
  display:flex;align-items:center;gap:16px;
  padding:22px 4px;font-size:17px;font-weight:700;color:var(--c-primary);
  cursor:pointer;list-style:none;
  transition:color .2s;
}
.acc summary::-webkit-details-marker{display:none;}
.acc summary:hover{color:var(--c-accent);}
.acc__no{
  flex:0 0 34px;width:34px;height:34px;border-radius:var(--r-sm);
  background:rgba(15,59,46,.10);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:14px;font-weight:700;
}
.acc summary i{margin-left:auto;font-size:13px;color:var(--c-ink-3);transition:transform .2s cubic-bezier(.2,.7,.2,1);}
.acc[open] summary i{transform:rotate(180deg);}
.acc__body{padding:0 4px 24px 54px;font-size:15px;line-height:1.9;color:var(--c-ink-2);max-width:820px;}
.acc__body ul{margin-top:10px;}
.acc__body li{
  position:relative;padding-left:18px;margin-bottom:6px;
}
.acc__body li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;
  background:var(--c-accent-soft);
}

/* ============ 两列图文卡 ============ */
.fig-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.figcard{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s cubic-bezier(.2,.7,.2,1),box-shadow .2s cubic-bezier(.2,.7,.2,1);
}
.figcard:hover{transform:translateY(-2px);box-shadow:var(--sh-3);}
.figcard img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--c-bg-alt);}
.figcard__body{padding:26px 26px 28px;}
.figcard__body h3{margin:12px 0 10px;}
.figcard__body p{font-size:15px;line-height:1.9;}
.figcard__list{margin-top:16px;}
.figcard__list li{
  display:flex;gap:10px;font-size:14px;color:var(--c-ink-2);padding:6px 0;
}
.figcard__list i{color:var(--c-accent);margin-top:6px;font-size:12px;}

/* ============ CTA 条 ============ */
.cta-band{background:var(--c-primary-deep);color:#fff;position:relative;overflow:hidden;}
.cta-band__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.22;
}
.cta-band__inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:clamp(36px,5vw,56px) 24px;flex-wrap:wrap;
}
.cta-band h2{font-size:28px;color:#fff;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;max-width:640px;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary-deep);color:#fff;padding:64px 0 0;}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px;}
.footer__brand .logo__mark{margin-bottom:14px;}
.footer__brand-name{font-size:18px;font-weight:700;margin-bottom:10px;}
.footer__brand p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.8;max-width:320px;}
.footer__col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer__links li{margin-bottom:10px;}
.footer__links a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;transition:color .2s,transform .2s;}
.footer__links a:hover{color:#fff;transform:translateX(2px);}
.footer__bottom{
  border-top:1px solid var(--c-line-dark);
  padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 状态样式 ============ */
.is-loading{
  background:linear-gradient(90deg,var(--c-bg-alt) 25%,#f4f2ec 37%,var(--c-bg-alt) 63%);
  background-size:400% 100%;
  animation:skeleton 1.4s ease infinite;
  border-radius:var(--r-sm);color:transparent;
}
@keyframes skeleton{0%{background-position:100% 50%;}100%{background-position:0 50%;}}
.empty{
  border:1px dashed var(--c-line);border-radius:var(--r-lg);
  padding:38px 24px;text-align:center;color:var(--c-ink-3);background:var(--c-surface);
}
.empty i{font-size:24px;color:var(--c-line);display:block;margin-bottom:12px;}
.is-error{border-color:var(--c-error) !important;}
.form-msg{font-size:13px;color:var(--c-error);margin-top:6px;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:1080px;}
  h1{font-size:38px;}
  h2{font-size:30px;}
  .mega{width:720px;}
}
@media (max-width:991px){
  .container{padding:0 20px;}
  h1{font-size:30px;}
  h2{font-size:23px;}
  h3{font-size:20px;}
  .nav{height:68px;}
  .nav__burger{display:block;}
  .nav__panel{
    position:fixed;top:68px;left:0;right:0;bottom:0;
    background:var(--c-bg);
    flex-direction:column;align-items:stretch;gap:0;
    padding:18px 20px 40px;overflow-y:auto;
    transform:translateX(100%);
    transition:transform .26s cubic-bezier(.2,.7,.2,1);
    box-shadow:var(--sh-3);
  }
  .nav__panel.is-open{transform:translateX(0);}
  .nav__list{flex-direction:column;align-items:stretch;gap:2px;border-bottom:1px solid var(--c-line);padding-bottom:12px;}
  .nav__link{padding:14px 12px;font-size:16px;border-radius:var(--r-md);}
  .nav__item.is-active > .nav__link::after{display:none;}
  .nav__item.is-active > .nav__link{background:rgba(255,107,44,.12);}
  .nav__actions{flex-direction:column;align-items:stretch;gap:12px;margin-top:18px;}
  .nav__actions .btn--primary{width:100%;padding:14px 20px;font-size:15px;}
  .has-mega{width:100%;}
  .mega-toggle{width:100%;justify-content:space-between;}
  .mega{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:1px solid var(--c-line);margin-top:8px;
    grid-template-columns:1fr;display:none;
  }
  .has-mega.is-open .mega{display:grid;}
  .hero__grid{grid-template-columns:1fr;gap:28px;}
  .hero__side{max-width:560px;}
  .fig-grid{grid-template-columns:1fr;gap:22px;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px;}
  .ctable td:first-child{width:26%;}
  .ctable td:last-child{width:34%;}
}
@media (max-width:767px){
  body{font-size:16px;}
  h1{font-size:26px;}
  h2{font-size:22px;}
  h3{font-size:19px;}
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  .section__head{margin-bottom:26px;}
  .hero__inner{padding:32px 16px 44px;}
  .hero__sub{font-size:16px;}
  .hero__actions .btn{width:100%;}
  .table-wrap{border-radius:var(--r-md);background:transparent;border:0;box-shadow:none;overflow:visible;}
  .ctable caption{padding:0 0 12px;}
  .ctable thead{display:none;}
  .ctable,.ctable tbody,.ctable tr,.ctable td{display:block;width:100%;}
  .ctable tbody tr{
    background:var(--c-surface) !important;
    border:1px solid var(--c-line);border-radius:var(--r-lg);
    box-shadow:var(--sh-1);margin-bottom:16px;padding:6px 2px;
  }
  .ctable td{border-top:0;border-bottom:1px dashed var(--c-line);padding:12px 18px;}
  .ctable tbody tr td:last-child{border-bottom:0;}
  .ctable td::before{
    content:attr(data-label);
    display:block;font-size:12px;letter-spacing:.04em;
    color:var(--c-ink-3);margin-bottom:4px;font-weight:700;
  }
  .ctable td:first-child,.ctable td:last-child{width:auto;}
  .acc summary{padding:18px 2px;font-size:16px;}
  .acc__body{padding:0 2px 20px 50px;}
  .figcard__body{padding:20px;}
  .cta-band__inner{padding:36px 16px;}
  .cta-band h2{font-size:21px;}
  .cta-band__actions .btn{width:100%;}
  .footer__grid{grid-template-columns:1fr;gap:26px;}
  .footer__bottom{flex-direction:column;gap:8px;}
  .section--dark .mega{display:none;}
}
@media (max-width:575px){
  .logo__sub{display:none;}
  .hero__facts li{flex-direction:column;gap:2px;}
  .figcard__body h3{font-size:18px;}
}