/* roulang page: index */
:root{
  --brand-900:#0B3F35;--brand-700:#0E5B4C;--brand-500:#2E8571;--brand-200:#A8CFC2;--brand-050:#EAF3EF;
  --accent-600:#B96A21;--accent-500:#D08A33;--accent-100:#F7E7CE;
  --bg:#F8F5EF;--surface:#FFFFFF;--surface-alt:#F1EDE4;--ink-900:#14201D;--ink-700:#33413D;--ink-500:#5F6F6A;--line:#E3DED3;
  --ok:#2F7D5B;--warn:#C9761F;--err:#B4453A;
  --grad-brand:linear-gradient(115deg,#0E5B4C 0%,#2E8571 55%,#D08A33 100%);
  --r-sm:10px;--r-md:16px;--r-lg:24px;--r-xl:32px;--pill:999px;
  --sh-1:0 2px 8px rgba(20,32,29,.06);--sh-2:0 12px 32px rgba(20,32,29,.10);--sh-3:0 24px 60px rgba(14,91,76,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:var(--font-cn);font-size:16px;line-height:1.85;color:var(--ink-700);background:var(--bg);-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.3;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input{font-family:inherit;}
:focus-visible{outline:3px solid var(--accent-100);outline-offset:2px;border-radius:var(--r-sm);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(248,245,239,.92);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:box-shadow .24s var(--ease),border-color .24s var(--ease);}
.site-header.is-scrolled{box-shadow:var(--sh-1);border-bottom-color:var(--line);}
.header-inner{display:flex;align-items:center;gap:28px;min-height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:34px;height:34px;border-radius:12px;background:var(--grad-brand);display:grid;place-items:center;color:#fff;font-size:15px;box-shadow:var(--sh-1);}
.brand-text{font-weight:800;font-size:18px;color:var(--brand-900);letter-spacing:-.2px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:22px;flex:1 1 auto;}
.nav-link{position:relative;font-size:15px;color:var(--ink-700);padding:6px 2px;transition:color .2s var(--ease);}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);font-weight:700;}
.header-side{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--pill);box-shadow:var(--sh-1);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.nav-search i{color:var(--ink-500);font-size:13px;}
.nav-search input{border:0;outline:none;background:transparent;font-size:14px;color:var(--ink-900);width:150px;}
.nav-search input::placeholder{color:var(--ink-500);}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-050);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);flex-direction:column;justify-content:center;align-items:center;gap:5px;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--r-md);font-size:15px;font-weight:600;transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),filter .22s var(--ease);}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
.btn-secondary{background:transparent;color:var(--brand-700);border:1.5px solid var(--brand-700);}
.btn-secondary:hover{background:var(--brand-050);transform:translateY(-1px);}
.btn-secondary:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:14px;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);border-bottom:1px solid var(--brand-700);padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease);}
.link-more:hover{color:var(--accent-600);border-color:var(--accent-600);}

/* ---------- drawer ---------- */
.drawer{position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;background:var(--surface);border-radius:24px 0 0 24px;box-shadow:var(--sh-3);transform:translateX(102%);transition:transform .26s var(--ease);z-index:90;display:flex;flex-direction:column;padding:20px;}
.drawer.is-open{transform:translateX(0);}
.drawer-mask{position:fixed;inset:0;background:rgba(20,32,29,.42);opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);z-index:80;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{width:38px;height:38px;border-radius:12px;background:var(--surface-alt);color:var(--ink-700);font-size:16px;}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px;flex:1 1 auto;}
.drawer-nav a{display:flex;align-items:center;height:48px;padding:0 12px;border-radius:14px;font-size:16px;color:var(--ink-700);}
.drawer-nav a.is-active{background:var(--brand-050);color:var(--brand-700);font-weight:700;}
.drawer-cta{width:100%;margin-top:12px;}

/* ---------- hero ---------- */
.hero{padding:44px 0 0;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.4px;color:var(--brand-700);background:var(--brand-050);border:1px solid var(--brand-200);border-radius:var(--pill);padding:6px 14px;}
.hero h1{font-size:48px;font-weight:800;letter-spacing:-.5px;line-height:1.15;margin:20px 0 18px;}
.hero-sub{font-size:17px;color:var(--ink-700);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-visual{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:5/4;}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(14,91,76,.42) 0%,rgba(46,133,113,.20) 55%,rgba(208,138,51,.24) 100%);}
.hero-float{position:absolute;right:20px;bottom:20px;z-index:2;background:#fff;border-radius:var(--r-lg);padding:14px 20px;box-shadow:var(--sh-2);display:flex;align-items:center;gap:12px;}
.hero-float-num{font-size:26px;font-weight:800;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.hero-float-txt{font-size:13px;color:var(--ink-500);line-height:1.5;max-width:130px;}
.hero-strip{display:flex;flex-wrap:wrap;gap:16px;margin-top:40px;}
.badge-card{flex:1 1 200px;display:flex;align-items:center;gap:12px;padding:14px 18px;background:var(--surface);border:1px solid transparent;border-radius:var(--pill);box-shadow:var(--sh-1);background-image:linear-gradient(var(--surface),var(--surface)),var(--grad-brand);background-origin:border-box;background-clip:padding-box,border-box;transition:transform .22s var(--ease),box-shadow .22s var(--ease);}
.badge-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.badge-num{font-size:24px;font-weight:800;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1;}
.badge-txt{font-size:13px;color:var(--ink-500);line-height:1.45;}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--surface-alt);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-title{font-size:32px;font-weight:700;margin:16px 0 12px;}
.section-desc{font-size:16px;color:var(--ink-700);}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- topic cards ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.topic-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-200);}
.topic-media{aspect-ratio:16/9;overflow:hidden;}
.topic-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.topic-card:hover .topic-media img{transform:scale(1.03);}
.topic-body{padding:28px;display:flex;flex-direction:column;gap:14px;flex:1 1 auto;}
.topic-index{font-size:13px;font-weight:700;color:var(--accent-600);letter-spacing:1px;}
.topic-body h3{font-size:21px;}
.topic-body p{font-size:15px;color:var(--ink-700);}
.topic-points{display:flex;flex-wrap:wrap;gap:8px;}
.topic-points li{font-size:13px;color:var(--brand-700);background:var(--brand-050);border-radius:var(--pill);padding:4px 12px;}

/* ---------- compare table ---------- */
.compare-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.compare-scroll{overflow-x:auto;}
.compare-table{width:100%;min-width:780px;border-collapse:separate;border-spacing:0;font-size:14.5px;}
.compare-table th,.compare-table td{padding:0 20px;height:56px;text-align:center;border-bottom:1px solid var(--line);color:var(--ink-700);}
.compare-table thead th{position:sticky;top:0;background:var(--surface);font-weight:700;color:var(--ink-900);font-size:15px;height:64px;z-index:2;}
.compare-table th.col-benefit,.compare-table td.col-benefit{text-align:left;font-weight:600;color:var(--ink-900);min-width:190px;}
.compare-table tbody tr:nth-child(even) td{background:var(--surface-alt);}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table .is-featured{background:var(--brand-050);position:relative;box-shadow:inset 2px 0 0 var(--brand-500),inset -2px 0 0 var(--accent-500);}
.pill-tag{display:inline-block;margin-left:8px;font-size:12px;font-weight:700;color:#fff;background:var(--accent-500);border-radius:var(--pill);padding:2px 10px;vertical-align:middle;}
.cell-yes{color:var(--brand-700);font-weight:700;}
.cell-no{color:var(--ink-500);}
.compare-note{margin-top:16px;font-size:13px;color:var(--ink-500);}

/* ---------- tiers ---------- */
.tier-list{display:flex;flex-direction:column;gap:32px;}
.tier-item{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);padding:28px;box-shadow:var(--sh-1);transition:box-shadow .24s var(--ease),border-color .24s var(--ease);}
.tier-item:hover{box-shadow:var(--sh-2);border-color:var(--brand-200);}
.tier-item:nth-child(even){grid-template-columns:7fr 5fr;}
.tier-item:nth-child(even) .tier-media{order:2;}
.tier-item:nth-child(even) .tier-body{order:1;}
.tier-media{aspect-ratio:16/10;border-radius:var(--r-lg);overflow:hidden;}
.tier-media img{width:100%;height:100%;object-fit:cover;}
.tier-body{padding:8px 8px 8px 0;}
.tier-name{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:700;color:var(--ink-900);}
.tier-name span{font-size:13px;font-weight:700;color:var(--brand-700);background:var(--brand-050);border-radius:var(--pill);padding:4px 12px;}
.tier-body>p{margin-top:12px;font-size:15px;}
.tier-points{margin:18px 0;display:flex;flex-direction:column;gap:10px;}
.tier-points li{display:flex;gap:10px;font-size:15px;color:var(--ink-700);}
.tier-points i{color:var(--brand-500);margin-top:6px;font-size:12px;}

/* ---------- preview strip ---------- */
.strip-wrap{position:relative;}
.strip{display:flex;gap:24px;overflow-x:auto;padding:6px 6px 22px;scroll-snap-type:x mandatory;}
.strip::-webkit-scrollbar{height:8px;}
.strip::-webkit-scrollbar-thumb{background:var(--brand-200);border-radius:var(--pill);}
.strip::-webkit-scrollbar-track{background:var(--surface-alt);border-radius:var(--pill);}
.preview-card{position:relative;flex:0 0 calc((100% - 72px)/3.5);min-width:280px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);scroll-snap-align:start;transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);}
.preview-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-200);}
.preview-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.preview-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.9);}
.preview-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,63,53,.05) 0%,rgba(11,63,53,.72) 100%);}
.lock-tag{position:absolute;top:12px;right:12px;z-index:2;width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.92);color:var(--brand-700);display:grid;place-items:center;font-size:13px;box-shadow:var(--sh-1);}
.preview-unlock{position:absolute;left:16px;bottom:14px;z-index:2;display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:#fff;border-bottom:1px solid rgba(255,255,255,.7);padding-bottom:2px;}
.preview-body{padding:20px;}
.preview-body h3{font-size:17px;line-height:1.5;margin-bottom:12px;}
.preview-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-500);}
.chip{display:inline-block;font-size:12px;font-weight:600;color:var(--brand-700);background:var(--brand-050);border-radius:var(--pill);padding:3px 10px;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;}
.step-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.step-num{font-size:13px;font-weight:800;color:var(--accent-600);letter-spacing:1px;font-variant-numeric:tabular-nums;}
.step-item h3{font-size:17px;margin:12px 0 8px;}
.step-item p{font-size:14px;color:var(--ink-700);}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-aside p{margin-top:16px;font-size:15px;color:var(--ink-700);}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:border-color .22s var(--ease);}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad-brand);transform:scaleY(0);transform-origin:top;transition:transform .22s var(--ease);}
.faq-item.is-open{border-color:var(--brand-200);}
.faq-item.is-open::before{transform:scaleY(1);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:14px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);}
.faq-q i{color:var(--brand-700);font-size:14px;transition:transform .22s var(--ease);flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-item.is-open .faq-a{max-height:360px;}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--ink-700);}

/* ---------- cta ---------- */
.cta-banner{background:var(--grad-brand);border-radius:var(--r-xl);padding:48px 56px;display:flex;align-items:center;justify-content:space-between;gap:32px;min-height:210px;box-shadow:var(--sh-2);}
.cta-banner h2{color:#fff;font-size:30px;}
.cta-banner p{color:rgba(255,255,255,.92);font-size:15px;margin-top:12px;max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1.5px solid rgba(255,255,255,.75);}
.btn-ghost:hover{background:rgba(255,255,255,.24);transform:translateY(-1px);}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-200);}
.news-card__link{display:block;height:100%;}
.news-card__media{aspect-ratio:16/9;overflow:hidden;}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.news-card:hover .news-card__media img{transform:scale(1.03);}
.news-card__body{padding:24px 28px 28px;display:flex;flex-direction:column;gap:12px;}
.news-card__title{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__excerpt{font-size:14.5px;color:var(--ink-700);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-500);border-top:1px solid var(--line);padding-top:14px;margin-top:2px;}
.empty-state{grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:14px;padding:64px 24px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-lg);color:var(--ink-500);}
.empty-state i{font-size:26px;color:var(--brand-200);}
.skeleton{background:linear-gradient(90deg,var(--surface-alt) 25%,#e8e2d5 37%,var(--surface-alt) 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:var(--r-lg);height:260px;}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#E7EFEB;margin-top:88px;position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-brand);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 24px 40px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;color:rgba(231,239,235,.78);max-width:300px;}
.footer-lang{display:flex;gap:10px;margin-top:20px;}
.footer-lang a{font-size:13px;padding:5px 14px;border-radius:var(--pill);border:1px solid rgba(231,239,235,.32);color:rgba(231,239,235,.82);transition:background-color .2s var(--ease),color .2s var(--ease);}
.footer-lang a.is-active,.footer-lang a:hover{background:rgba(231,239,235,.14);color:#fff;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700;}
.footer-col li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:14px;color:rgba(231,239,235,.78);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--brand-200);}
.footer-bottom{border-top:1px solid rgba(231,239,235,.16);padding:20px 24px 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(231,239,235,.66);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .hero h1{font-size:42px;}
  .preview-card{flex:0 0 calc((100% - 48px)/2.4);}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{gap:16px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero h1{font-size:36px;}
  .topic-grid{grid-template-columns:1fr;}
  .tier-item,.tier-item:nth-child(even){grid-template-columns:1fr;gap:24px;}
  .tier-item:nth-child(even) .tier-media,.tier-item:nth-child(even) .tier-body{order:0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .section{padding:64px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding-top:48px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .hero{padding-top:32px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-visual{aspect-ratio:auto;height:300px;border-radius:var(--r-lg);}
  .hero-visual img{height:300px;}
  .hero-float{padding:12px 16px;}
  .badge-card{flex:1 1 calc(50% - 8px);}
  .section{padding:48px 0;}
  .section-title{font-size:23px;}
  .topic-body,.news-card__body{padding:20px;}
  .compare-table{min-width:640px;}
  .preview-card{flex:0 0 78%;min-width:0;}
  .steps{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:32px 24px;border-radius:var(--r-lg);}
  .cta-banner h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:8px;padding:40px 16px 24px;}
  .footer-col{border-bottom:1px solid rgba(231,239,235,.16);padding:14px 0;}
  .footer-col h4{margin-bottom:0;display:flex;align-items:center;justify-content:space-between;cursor:pointer;}
  .footer-col h4::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:rgba(231,239,235,.6);}
  .footer-col.is-open h4::after{content:"\f068";}
  .footer-col ul{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
  .footer-col.is-open ul{max-height:280px;margin-top:14px;}
  .footer-bottom{flex-direction:column;padding:18px 16px 26px;}
  .site-footer{margin-top:48px;}
}
@media (max-width:480px){
  .hero h1{font-size:27px;}
  .brand-text{font-size:16px;}
  .badge-card{flex:1 1 100%;}
  .hero-actions .btn{width:100%;}
}

/* roulang page: article */
:root{
  --brand-900:#0B3F35;--brand-700:#0E5B4C;--brand-500:#2E8571;--brand-200:#A8CFC2;--brand-050:#EAF3EF;
  --accent-600:#B96A21;--accent-500:#D08A33;--accent-100:#F7E7CE;
  --bg:#F8F5EF;--surface:#FFFFFF;--surface-alt:#F1EDE4;
  --ink-900:#14201D;--ink-700:#33413D;--ink-500:#5F6F6A;--line:#E3DED3;
  --ok:#2F7D5B;--warn:#C9761F;--err:#B4453A;
  --grad-brand:linear-gradient(115deg,#0E5B4C 0%,#2E8571 55%,#D08A33 100%);
  --r-sm:10px;--r-md:16px;--r-lg:24px;--r-xl:32px;
  --sh-1:0 2px 8px rgba(20,32,29,.06);
  --sh-2:0 12px 32px rgba(20,32,29,.10);
  --sh-3:0 24px 60px rgba(14,91,76,.18);
  --s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:24px;--s6:32px;--s7:48px;--s8:64px;--s9:96px;
  --font-cn:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink-700);
  font-family:var(--font-cn);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--brand-700);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--accent-600)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3}
p{margin:0 0 var(--s4)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}
:focus-visible{outline:3px solid var(--accent-100);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-700);color:#fff;padding:10px 18px;border-radius:0 0 var(--r-md) 0;z-index:200}
.skip-link:focus{left:0;color:#fff}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(248,245,239,.86);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;transition:box-shadow .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(248,245,239,.94);box-shadow:var(--sh-1);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:var(--s5);height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad-brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  box-shadow:var(--sh-1);
}
.brand-text{font-size:19px;font-weight:800;color:var(--brand-900);letter-spacing:-.3px}
.brand:hover .brand-text{color:var(--brand-700)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:var(--s5)}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:var(--r-md);font-size:15px;color:var(--ink-700);font-weight:500;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-link:hover{background:var(--brand-050);color:var(--brand-700)}
.nav-link.is-active{color:var(--brand-700);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--grad-brand);
}
.header-side{display:flex;align-items:center;gap:var(--s3);margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;width:220px;
  background:var(--surface);border:1px solid var(--line);border-radius:32px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-search i{color:var(--ink-500);font-size:13px}
.nav-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink-900)}
.nav-search input::placeholder{color:var(--ink-500)}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-050)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-md);border:1px solid var(--line);
  background:var(--surface);flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);transition:transform .24s var(--ease),opacity .24s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-md);font-size:15px;font-weight:600;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),filter .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:14px}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-3);color:#fff}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border:1.5px solid var(--brand-700);color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700)}
.btn-light{background:#fff;color:var(--brand-700);box-shadow:var(--sh-1)}
.btn-light:hover{color:var(--brand-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.link-more{font-size:14px;font-weight:600;color:var(--brand-700);border-bottom:1px solid var(--brand-200);padding-bottom:2px}
.link-more:hover{color:var(--accent-600);border-bottom-color:var(--accent-500)}

/* ============ 文章头部 ============ */
.article-hero{padding:36px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);margin-bottom:18px}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink-900);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:38px;font-weight:800;letter-spacing:-.5px;line-height:1.22;max-width:900px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--ink-500)}
.article-meta .dot{color:var(--line)}
.meta-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-050);color:var(--brand-700);font-weight:600;font-size:12px;
}
.hero-rule{margin-top:24px;height:1px;background:var(--line)}

/* ============ 布局 ============ */
.article-main{padding:48px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.article-col{min-width:0}
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}

/* ============ 正文排版 ============ */
.article-body{
  counter-reset:h2counter;font-size:17px;line-height:1.9;color:var(--ink-700);max-width:860px;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  counter-increment:h2counter;position:relative;padding-left:46px;
  font-size:26px;line-height:1.4;margin:48px 0 18px;color:var(--ink-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:1.05em;border-radius:2px;background:var(--grad-brand);
}
.article-body h2::after{
  content:counter(h2counter,decimal-leading-zero);
  position:absolute;left:14px;top:.36em;font-size:14px;font-weight:800;
  color:var(--accent-600);font-variant-numeric:tabular-nums;
}
.article-body h3{font-size:20px;margin:32px 0 12px;color:var(--ink-900);font-weight:700}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--ink-900)}
.article-body a{color:var(--brand-700);border-bottom:1px solid var(--brand-200)}
.article-body a:hover{color:var(--accent-600);border-bottom-color:var(--accent-500)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--brand-500);
}
.article-body ol{counter-reset:olcounter}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:olcounter}
.article-body ol li::before{
  content:counter(olcounter);position:absolute;left:0;top:.35em;
  width:20px;height:20px;border-radius:7px;background:var(--brand-050);color:var(--brand-700);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--surface-alt);
  border-left:4px solid var(--accent-500);border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--ink-700);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:24px 0 8px;width:100%;object-fit:cover;box-shadow:var(--sh-1)}
.article-body figure{margin:24px 0}
.article-body figcaption,.article-body .img-caption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:2px}
.article-body table{width:100%;border-collapse:collapse;font-size:14px;margin:0}
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);margin:24px 0}
.article-body th,.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line)}
.article-body th{background:var(--surface-alt);color:var(--ink-900);font-weight:600;white-space:nowrap}
.article-body tr:last-child td{border-bottom:0}
.article-body pre,.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-body pre{
  background:var(--surface-alt);border-radius:var(--r-md);padding:18px 20px;overflow-x:auto;
  font-size:13.5px;line-height:1.7;margin:24px 0;color:var(--ink-900);
}
.article-body :not(pre) > code{background:var(--surface-alt);border-radius:6px;padding:2px 6px;font-size:14px;color:var(--accent-600)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ============ 标签 ============ */
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 0;padding-top:24px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
  background:var(--brand-050);color:var(--brand-700);font-size:13px;font-weight:600;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.tag:hover{background:var(--brand-200);transform:translateY(-2px)}

/* ============ 上下篇 ============ */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
.post-nav a{
  display:block;padding:20px 22px;border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--surface);box-shadow:var(--sh-1);color:var(--ink-900);
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.post-nav a:hover{box-shadow:var(--sh-2);border-color:var(--brand-200);transform:translateY(-2px);color:var(--ink-900)}
.post-nav .dir{display:block;font-size:12px;color:var(--accent-600);font-weight:700;margin-bottom:8px;letter-spacing:.4px}
.post-nav .ttl{font-size:16px;font-weight:700;line-height:1.5}
.post-nav .sub{font-size:13px;color:var(--ink-500);margin-top:6px}
.post-nav .is-next{text-align:right}

/* ============ 相关推荐 ============ */
.related{margin-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-head h2{font-size:26px}
.section-head p{font-size:14px;color:var(--ink-500);margin:6px 0 0}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;color:inherit;
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.card:hover{box-shadow:var(--sh-2);border-color:var(--brand-200);transform:translateY(-3px);color:inherit}
.card-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-alt)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-tag{align-self:flex-start;display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--brand-050);color:var(--brand-700);font-size:12px;font-weight:600}
.card-title{font-size:17px;font-weight:700;line-height:1.5;color:var(--ink-900)}
.card-desc{font-size:14px;color:var(--ink-500);line-height:1.7;margin:0}
.card-time{font-size:12.5px;color:var(--ink-500);margin-top:auto;padding-top:8px;border-top:1px solid var(--line)}

/* ============ 侧栏 ============ */
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--accent-500);font-size:14px}
.toc-list{display:flex;flex-direction:column;gap:2px;border-left:2px solid var(--line);padding-left:0}
.toc-list a{
  display:block;padding:7px 12px;font-size:14px;color:var(--ink-700);border-left:2px solid transparent;
  margin-left:-2px;line-height:1.55;transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.toc-list a:hover{color:var(--brand-700);background:var(--brand-050)}
.toc-list a.is-current{color:var(--brand-700);font-weight:700;border-left-color:var(--accent-500)}
.toc-empty{font-size:13px;color:var(--ink-500)}
.member-card{background:var(--grad-brand);border:0;color:#fff;box-shadow:var(--sh-2)}
.member-card h3{color:#fff}
.member-card h3 i{color:#fff}
.member-card p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.92);margin-bottom:18px}
.member-card .btn{width:100%}
.member-badges{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.member-badges span{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.42);color:#fff;font-size:12px;font-weight:600;
}
.channel-list{display:flex;flex-direction:column;gap:6px}
.channel-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:14px;font-size:14px;color:var(--ink-700);background:var(--surface-alt);
  transition:background .22s var(--ease),color .22s var(--ease);
}
.channel-list a:hover{background:var(--brand-050);color:var(--brand-700)}
.channel-list i{font-size:11px;color:var(--brand-500)}

/* ============ 空态 ============ */
.empty-state{
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;
  padding:64px 28px;background:var(--surface);border:1px dashed var(--line);
  border-radius:var(--r-xl);box-shadow:var(--sh-1);
}
.empty-state i{font-size:34px;color:var(--brand-200)}
.empty-state h2{font-size:22px}
.empty-state p{font-size:15px;color:var(--ink-500);margin:0}
.loading-line{height:12px;border-radius:6px;background:linear-gradient(90deg,var(--surface-alt) 25%,#E7E2D7 50%,var(--surface-alt) 75%);background-size:200% 100%;animation:sk 1.4s linear infinite}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ============ CTA ============ */
.cta-wrap{padding:0 0 88px}
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:var(--grad-brand);color:#fff;border-radius:var(--r-xl);padding:44px 48px;box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:30px;line-height:1.3;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.92);font-size:15px;margin:0;max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:#EFEAE0;border-top:3px solid transparent;position:relative;padding-top:56px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-brand)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px}
.footer-brand .brand-text{color:#fff;font-size:19px;font-weight:800;display:inline-block;margin-bottom:14px}
.footer-brand p{font-size:14px;color:rgba(239,234,224,.72);line-height:1.8;margin:0 0 18px;max-width:320px}
.footer-lang{display:flex;gap:8px}
.footer-lang a{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;font-size:13px;
  border:1px solid rgba(239,234,224,.28);color:rgba(239,234,224,.8);
}
.footer-lang a.is-active{background:rgba(255,255,255,.12);color:#fff;border-color:transparent}
.footer-lang a:hover{color:var(--brand-200)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(239,234,224,.74);transition:color .22s var(--ease)}
.footer-col a:hover{color:var(--brand-200)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:22px 0;border-top:1px solid rgba(239,234,224,.14);font-size:13px;color:rgba(239,234,224,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px}
}
@media (max-width:1023px){
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;width:84vw;max-width:360px;
    background:var(--surface);flex-direction:column;align-items:stretch;gap:6px;
    padding:88px 20px 28px;margin:0;border-radius:24px 0 0 24px;
    transform:translateX(105%);transition:transform .26s var(--ease);
    box-shadow:var(--sh-3);z-index:70;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{height:48px;padding:0 16px;font-size:16px}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{background:var(--brand-050)}
  .header-inner{height:64px;gap:12px}
  .article-layout{grid-template-columns:1fr;gap:40px}
  .article-side{position:static}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-title{font-size:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px 32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .article-hero{padding-top:24px}
  .article-main{padding:32px 0 64px}
  .article-title{font-size:28px}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:22px;padding-left:38px;margin-top:36px}
  .article-body h2::after{left:12px;font-size:13px}
  .article-body h3{font-size:18px}
  .card-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav .is-next{text-align:left}
  .cta-band{padding:28px 22px;gap:22px}
  .cta-band h2{font-size:23px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
  .section-head{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .brand-text{font-size:17px}
  .btn-sm{height:38px;padding:0 14px;font-size:13px}
  .article-title{font-size:25px}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B3F35;--brand-700:#0E5B4C;--brand-500:#2E8571;--brand-200:#A8CFC2;--brand-050:#EAF3EF;
  --accent-600:#B96A21;--accent-500:#D08A33;--accent-100:#F7E7CE;
  --bg:#F8F5EF;--surface:#FFFFFF;--surface-alt:#F1EDE4;
  --ink-900:#14201D;--ink-700:#33413D;--ink-500:#5F6F6A;--line:#E3DED3;
  --ok:#2F7D5B;--warn:#C9761F;--err:#B4453A;
  --grad-brand:linear-gradient(115deg,#0E5B4C 0%,#2E8571 55%,#D08A33 100%);
  --r-sm:10px;--r-md:16px;--r-lg:24px;--r-xl:32px;--r-pill:999px;
  --sh-1:0 2px 8px rgba(20,32,29,.06);--sh-2:0 12px 32px rgba(20,32,29,.10);--sh-3:0 24px 60px rgba(14,91,76,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sp-section:88px;
  --font-cn:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font-cn);background:var(--bg);color:var(--ink-700);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
h1,h2,h3,h4{color:var(--ink-900);font-weight:700;line-height:1.3}
ul,ol{padding:0;list-style:none}
a{color:var(--brand-700);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--accent-600)}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid var(--accent-100);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:90;height:64px;background:rgba(248,245,239,.86);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:box-shadow .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease)}
.site-header.is-scrolled{background:rgba(248,245,239,.94);box-shadow:var(--sh-1);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--grad-brand);color:#fff;display:grid;place-items:center;font-size:16px;box-shadow:var(--sh-1)}
.brand-text{font-size:19px;font-weight:800;color:var(--brand-900);letter-spacing:-.2px}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;padding:9px 14px;border-radius:var(--r-sm);font-size:15px;font-weight:500;color:var(--ink-700);white-space:nowrap}
.nav-link:hover{color:var(--brand-700);background:var(--brand-050)}
.nav-link.is-active{color:var(--brand-700);font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--grad-brand)}
.header-side{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);color:var(--ink-500);transition:border-color .22s var(--ease),box-shadow .22s var(--ease)}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-050)}
.nav-search i{font-size:13px}
.nav-search input{width:150px;border:0;background:transparent;outline:none;font-size:14px}
.nav-search input::placeholder{color:var(--ink-500)}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:var(--surface);flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .24s var(--ease),opacity .24s var(--ease)}
.nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-active span:nth-child(2){opacity:0}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--r-md);border:1.5px solid transparent;font-size:15.5px;font-weight:600;line-height:1;transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease)}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-3);color:#fff}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-900);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:14px}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:20px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500)}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink-900);font-weight:600}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:36px 0 64px}
.page-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(760px 400px at 88% -10%,rgba(46,133,113,.16),transparent 72%),radial-gradient(560px 320px at 4% 100%,rgba(208,138,51,.12),transparent 70%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:52px;align-items:center;padding-top:26px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-pill);background:var(--brand-050);color:var(--brand-700);font-size:12.5px;font-weight:700;letter-spacing:.4px}
.hero-copy h1{margin:18px 0 0;font-size:clamp(30px,3.6vw,48px);font-weight:800;letter-spacing:-.5px;line-height:1.15}
.hero-lead{margin-top:18px;max-width:620px;font-size:17px;line-height:1.85;color:var(--ink-700)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-media{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-2);background:var(--surface-alt)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(14,91,76,.30),rgba(208,138,51,.22));pointer-events:none}
.hero-float{position:absolute;right:18px;bottom:18px;z-index:2;display:flex;flex-direction:column;gap:2px;padding:14px 20px;background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-2)}
.hero-float strong{font-size:26px;font-weight:800;color:var(--brand-700);line-height:1.1;font-variant-numeric:tabular-nums}
.hero-float span{font-size:12px;color:var(--ink-500)}
.badge-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.stat-badge{display:flex;align-items:center;gap:12px;padding:12px 20px;border:1px solid transparent;border-radius:var(--r-pill);background:linear-gradient(#fff,#fff) padding-box,var(--grad-brand) border-box;box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.stat-badge:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.stat-badge strong{font-size:22px;font-weight:800;color:var(--brand-700);line-height:1;font-variant-numeric:tabular-nums}
.stat-badge span{font-size:12.5px;color:var(--ink-500)}

/* ---------- section ---------- */
.section{padding:var(--sp-section) 0}
.section-alt{background:var(--surface-alt)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{margin-top:16px;font-size:clamp(23px,2.6vw,32px);font-weight:700;letter-spacing:-.3px;line-height:1.3}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-700)}

/* ---------- long list ---------- */
.long-list{max-width:1000px;margin:0 auto;border-top:1px solid var(--line)}
.list-item{display:grid;grid-template-columns:320px minmax(0,1fr);gap:30px;padding:28px 20px;border-bottom:1px solid var(--line);border-radius:var(--r-md);transition:background .24s var(--ease),box-shadow .24s var(--ease)}
.list-item:hover{background:var(--surface);box-shadow:var(--sh-1)}
.item-media{display:block;border-radius:var(--r-md);overflow:hidden;background:var(--surface-alt);aspect-ratio:16/9}
.item-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.list-item:hover .item-media img{transform:scale(1.03)}
.item-top{display:flex;align-items:center;gap:14px;margin-bottom:10px}
.item-index{font-size:15px;font-weight:800;color:var(--accent-500);letter-spacing:.6px;font-variant-numeric:tabular-nums}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);background:var(--brand-050);color:var(--brand-700);font-size:12.5px;font-weight:600}
.item-body h3{font-size:21px;font-weight:700}
.item-body>p{margin-top:10px;font-size:15.5px;line-height:1.85;color:var(--ink-700)}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-sm);background:var(--surface-alt);border:1px solid var(--line);color:var(--ink-700);font-size:12.5px}
.list-item:hover .chip{background:var(--brand-050);border-color:var(--brand-200)}
.text-link{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;font-weight:600;color:var(--brand-700);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.text-link:hover{color:var(--accent-600)}
.text-link i{font-size:12px;transition:transform .22s var(--ease)}
.text-link:hover i{transform:translateX(3px)}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.flow-step{position:relative;padding:28px 24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-200)}
.flow-num{display:block;font-size:26px;font-weight:800;letter-spacing:-1px;color:var(--accent-500);font-variant-numeric:tabular-nums;line-height:1}
.flow-step h3{margin-top:14px;font-size:17px;font-weight:700}
.flow-step p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--ink-500)}

/* ---------- fit ---------- */
.fit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.fit-card{display:flex;gap:18px;padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)}
.fit-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-200)}
.fit-icon{flex-shrink:0;width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--brand-050);color:var(--brand-700);font-size:17px}
.fit-card h3{font-size:17.5px;font-weight:700}
.fit-card p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--ink-700)}

/* ---------- faq ---------- */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{position:relative;margin-bottom:12px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow .24s var(--ease),border-color .24s var(--ease)}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad-brand);opacity:0;transition:opacity .24s var(--ease)}
.faq-item.is-open{box-shadow:var(--sh-2);border-color:var(--brand-200)}
.faq-item.is-open::before{opacity:1}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;min-height:56px;padding:14px 24px;background:none;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900)}
.faq-q i{flex-shrink:0;font-size:14px;color:var(--brand-700);transition:transform .24s var(--ease)}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-700)}

/* ---------- cta band ---------- */
.cta-band{display:grid;grid-template-columns:1fr 2fr;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2)}
.cta-visual{background:var(--grad-brand);min-height:100%}
.cta-body{display:flex;flex-direction:column;justify-content:center;gap:14px;padding:38px 42px}
.cta-body h2{font-size:clamp(21px,2.2vw,27px);font-weight:700}
.cta-body p{font-size:15px;color:var(--ink-700)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--brand-900);color:#D9E3DF;padding-top:64px;margin-top:8px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-brand)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-text{display:inline-block;font-size:20px;color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#A9BDB7}
.footer-lang{display:flex;gap:8px;margin-top:18px}
.footer-lang a{padding:5px 14px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.2);font-size:12.5px;color:#C9D8D2}
.footer-lang a.is-active{background:rgba(255,255,255,.12);color:#fff}
.footer-lang a:hover{color:#fff;border-color:var(--brand-200)}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.4px}
.footer-col ul{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:13.5px;line-height:1.7;color:#A9BDB7}
.footer-col a{color:#C9D8D2;font-size:13.5px}
.footer-col a:hover{color:var(--brand-200)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;padding-top:22px;padding-bottom:28px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#8FA6A0}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  :root{--sp-section:76px}
  .hero-grid{gap:40px}
}
@media (max-width:1023px){
  :root{--sp-section:64px}
  .container{padding:0 20px}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .main-nav{position:fixed;top:0;right:0;z-index:95;width:84vw;max-width:340px;height:100vh;flex-direction:column;align-items:stretch;gap:6px;padding:88px 22px 32px;background:var(--surface);border-radius:var(--r-lg) 0 0 var(--r-lg);box-shadow:var(--sh-3);transform:translateX(105%);transition:transform .26s var(--ease);overflow-y:auto}
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{padding:0 16px;height:48px;display:flex;align-items:center;font-size:16px}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{background:var(--brand-050)}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .page-hero{padding-bottom:52px}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-body{padding:32px 28px}
}
@media (max-width:767px){
  :root{--sp-section:48px}
  .container{padding:0 16px}
  body{font-size:16px}
  .hero-copy h1{font-size:30px}
  .hero-lead{font-size:16px}
  .hero-media{border-radius:var(--r-lg)}
  .hero-media img{aspect-ratio:16/10}
  .badge-row{gap:10px}
  .stat-badge{padding:10px 16px}
  .stat-badge strong{font-size:19px}
  .list-item{grid-template-columns:1fr;gap:16px;padding:24px 12px}
  .item-body h3{font-size:19px}
  .fit-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr}
  .cta-visual{min-height:14px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
  .header-side .btn-sm{display:none}
}
@media (max-width:480px){
  .hero-actions .btn{width:100%}
  .section-head{margin-bottom:32px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B3F35;
  --brand-700:#0E5B4C;
  --brand-500:#2E8571;
  --brand-200:#A8CFC2;
  --brand-050:#EAF3EF;
  --accent-600:#B96A21;
  --accent-500:#D08A33;
  --accent-100:#F7E7CE;
  --bg:#F8F5EF;
  --surface:#FFFFFF;
  --surface-alt:#F1EDE4;
  --ink-900:#14201D;
  --ink-700:#33413D;
  --ink-500:#5F6F6A;
  --line:#E3DED3;
  --ok:#2F7D5B;
  --warn:#C9761F;
  --err:#B4453A;
  --grad-brand:linear-gradient(115deg,#0E5B4C 0%,#2E8571 55%,#D08A33 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,32,29,.06);
  --sh-2:0 12px 32px rgba(20,32,29,.10);
  --sh-3:0 24px 60px rgba(14,91,76,.18);
  --font-cn:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--accent-600);}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:-.2px;}
h1{font-size:clamp(28px,3.6vw,46px);font-weight:800;line-height:1.15;letter-spacing:-.5px;}
h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.3;}
h3{font-size:20px;font-weight:700;line-height:1.45;}
p{margin:0;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;}
input,button{outline:none;}
:focus-visible{outline:3px solid var(--accent-100);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-alt{background:var(--surface-alt);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head p{margin-top:14px;font-size:16.5px;color:var(--ink-700);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.6px;
  color:var(--brand-700);background:var(--brand-050);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:16px;
}
.eyebrow i{font-size:11px;color:var(--accent-500);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  height:64px;
  background:rgba(248,245,239,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease),background .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(248,245,239,.97);}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:var(--r-sm);
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-size:14px;
  box-shadow:var(--sh-1);
}
.brand-text{font-size:17px;font-weight:800;color:var(--brand-900);letter-spacing:-.3px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 13px;border-radius:var(--r-sm);
  font-size:15px;color:var(--ink-700);white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-050);}
.nav-link.is-active{color:var(--brand-700);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  background:var(--grad-brand);border-radius:2px;
}
.header-side{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  color:var(--ink-500);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-search i{font-size:13px;}
.nav-search input{
  border:0;background:transparent;width:150px;
  font-size:14px;color:var(--ink-900);
}
.nav-search input::placeholder{color:var(--ink-500);}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-050);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);cursor:pointer;padding:0 11px;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--brand-900);transition:transform .22s var(--ease),opacity .22s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;cursor:pointer;border:0;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-3);color:#fff;}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;color:var(--brand-700);border:1.5px solid var(--brand-700);}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);}
.btn-light{background:rgba(255,255,255,.94);color:var(--brand-900);}
.btn-light:hover{background:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);color:var(--brand-900);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:var(--r-sm);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand-700);
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
}
.btn-text:hover{color:var(--accent-600);}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--ink-500);padding:28px 0 18px;
}
.crumbs a{color:var(--ink-500);}
.crumbs a:hover{color:var(--brand-700);}
.crumbs .sep{color:var(--line);}
.crumbs .current{color:var(--ink-900);font-weight:600;}

/* ============ Hero ============ */
.page-hero{padding-bottom:8px;}
.hero-panel{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--sh-2);
  display:grid;grid-template-rows:1fr auto;
  min-height:520px;
}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(11,63,53,.94) 0%,rgba(14,91,76,.82) 48%,rgba(208,138,51,.55) 100%);
}
.hero-copy{position:relative;z-index:2;padding:56px 48px 32px;max-width:780px;color:#fff;}
.hero-copy .eyebrow{background:rgba(255,255,255,.16);color:#fff;}
.hero-copy .eyebrow i{color:var(--accent-100);}
.hero-copy h1{color:#fff;max-width:720px;}
.hero-copy p{margin-top:18px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.88);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6);}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
.hero-stats{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:12px;
  padding:0 48px 40px;
}
.stat-badge{
  display:inline-flex;align-items:center;gap:12px;
  background:var(--surface);border:1px solid transparent;
  border-radius:var(--r-pill);padding:10px 22px;
  box-shadow:var(--sh-1);
  background-image:linear-gradient(var(--surface),var(--surface)),var(--grad-brand);
  background-origin:border-box;background-clip:padding-box,border-box;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.stat-badge:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.stat-badge b{
  font-size:24px;font-weight:800;color:var(--brand-700);
  font-variant-numeric:tabular-nums;line-height:1;
}
.stat-badge span{font-size:12.5px;color:var(--ink-500);}

/* ============ 双列错落卡 ============ */
.bento{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start;}
.bento-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.bento-card:hover{box-shadow:var(--sh-2);border-color:var(--brand-200);transform:translateY(-2px);}
.bento-card .card-media{position:relative;overflow:hidden;}
.bento-card .card-media img{width:100%;height:200px;object-fit:cover;transition:transform .24s var(--ease);}
.bento-card:hover .card-media img{transform:scale(1.03);}
.bento-card.is-tall .card-media img{height:248px;}
.bento-body{padding:24px 26px 26px;}
.bento-body h3{margin-bottom:10px;font-size:19.5px;}
.bento-body p{font-size:15px;color:var(--ink-700);}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-block;font-size:12.5px;color:var(--brand-700);
  background:var(--brand-050);border-radius:var(--r-pill);
  padding:5px 13px;font-weight:600;
}
.bento-card.is-wide{
  grid-column:1 / -1;position:relative;min-height:400px;
  display:flex;align-items:flex-end;border:0;
}
.bento-card.is-wide .card-media{position:absolute;inset:0;}
.bento-card.is-wide .card-media img{height:100%;width:100%;}
.bento-card.is-wide::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,63,53,0) 32%,rgba(11,63,53,.86) 100%);
}
.wide-body{position:relative;z-index:2;padding:36px 40px;max-width:720px;color:#fff;}
.wide-body .tag{background:rgba(255,255,255,.18);color:#fff;}
.wide-body h3{color:#fff;font-size:clamp(22px,2.4vw,30px);margin:14px 0 12px;}
.wide-body p{color:rgba(255,255,255,.9);font-size:15.5px;}
.bento-note{
  background:var(--surface-alt);border:1px dashed var(--brand-200);
  border-radius:var(--r-lg);padding:28px;
}
.bento-note h3{font-size:18px;margin-bottom:10px;}
.bento-note p{font-size:14.5px;color:var(--ink-700);margin-bottom:14px;}

/* ============ 路径节点 ============ */
.step-track{
  position:relative;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));
  gap:20px;
}
.step-track::before{
  content:"";position:absolute;left:1%;right:1%;top:17px;height:2px;
  background:var(--grad-brand);opacity:.3;border-radius:2px;
}
.step{position:relative;padding-top:52px;}
.step-dot{
  position:absolute;top:0;left:0;
  width:36px;height:36px;border-radius:50%;
  background:var(--surface);border:2px solid var(--brand-500);
  color:var(--brand-700);font-weight:800;font-size:13px;
  display:grid;place-items:center;box-shadow:var(--sh-1);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17.5px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--ink-700);}

/* ============ 清单与标签 ============ */
.split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.split-copy p{margin-top:16px;font-size:16px;color:var(--ink-700);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;list-style:none;}
.tag-row li{
  font-size:13.5px;color:var(--brand-900);background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:7px 16px;box-shadow:var(--sh-1);
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.tag-row li:hover{border-color:var(--brand-200);color:var(--accent-600);transform:translateY(-2px);}
.checklist{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:15px 18px;font-size:15px;color:var(--ink-700);box-shadow:var(--sh-1);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.checklist li:hover{border-color:var(--brand-200);box-shadow:var(--sh-2);}
.checklist i{color:var(--brand-500);font-size:14px;margin-top:5px;}

/* ============ 数据对照卡 ============ */
.fact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.fact-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.fact-card:hover{box-shadow:var(--sh-2);border-color:var(--brand-200);}
.fact-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px;}
.fact-head h3{font-size:19px;}
.fact-num{
  font-size:26px;font-weight:800;color:var(--accent-500);
  font-variant-numeric:tabular-nums;line-height:1;
}
.fact-card p{font-size:15px;color:var(--ink-700);}
.fact-meta{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;
  font-size:12.5px;color:var(--ink-500);
}
.fact-meta span{background:var(--surface-alt);border-radius:var(--r-pill);padding:5px 12px;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;position:relative;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;
  background:var(--grad-brand);border-radius:0 4px 4px 0;
  opacity:0;transition:opacity .22s var(--ease);
}
.faq-item.is-open{border-color:var(--brand-200);box-shadow:var(--sh-2);}
.faq-item.is-open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:16px 24px;background:transparent;border:0;
  font-size:16px;font-weight:600;color:var(--ink-900);text-align:left;cursor:pointer;
}
.faq-q i{color:var(--brand-500);font-size:14px;transition:transform .2s var(--ease);flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--accent-500);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease);}
.faq-a p{padding:0 24px 20px;font-size:15px;color:var(--ink-700);}

/* ============ CTA 条 ============ */
.cta-bar{
  position:relative;display:grid;grid-template-columns:minmax(0,33%) minmax(0,1fr);
  align-items:center;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
.cta-art{
  align-self:stretch;min-height:150px;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-size:34px;
}
.cta-body{
  padding:32px 40px;display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}
.cta-body h3{font-size:22px;margin-bottom:8px;}
.cta-body p{font-size:15px;color:var(--ink-700);max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--brand-900);color:#E7EFEA;margin-top:88px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-brand);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;
  padding:64px 0 40px;
}
.footer-brand .brand-text{font-size:20px;color:#fff;font-weight:800;}
.footer-brand p{
  color:rgba(231,239,234,.76);font-size:14px;line-height:1.8;
  margin:14px 0 18px;max-width:330px;
}
.footer-lang{display:flex;gap:8px;}
.footer-lang a{
  padding:6px 15px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.22);color:rgba(231,239,234,.82);font-size:13px;
}
.footer-lang a:hover{color:#fff;border-color:var(--brand-200);}
.footer-lang a.is-active{background:var(--brand-700);color:#fff;border-color:transparent;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul{list-style:none;display:grid;gap:11px;}
.footer-col a,.footer-col span{color:rgba(231,239,234,.76);font-size:14px;}
.footer-col a:hover{color:var(--brand-200);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 32px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(231,239,234,.62);
}

/* ============ 状态样式 ============ */
.is-empty{
  text-align:center;padding:56px 24px;background:var(--surface);
  border:1px dashed var(--line);border-radius:var(--r-lg);color:var(--ink-500);
}
.is-empty i{font-size:30px;color:var(--brand-200);display:block;margin-bottom:14px;}
.skeleton{
  background:linear-gradient(90deg,var(--surface-alt) 25%,#E7E2D6 50%,var(--surface-alt) 75%);
  background-size:200% 100%;animation:sk 1.4s linear infinite;border-radius:var(--r-md);
}
@keyframes sk{0%{background-position:200% 0;}100%{background-position:-200% 0;}}
.form-error{
  border:1px solid var(--err)!important;border-radius:var(--r-md);
}
.form-error-text{font-size:13px;color:var(--err);margin-top:6px;}
.form-success{
  border-top:3px solid var(--ok);background:var(--brand-050);
  border-radius:0 0 var(--r-md) var(--r-md);padding:14px 18px;
  font-size:14px;color:var(--ok);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 20px;}
  .hero-copy{padding:48px 40px 28px;}
  .hero-stats{padding:0 40px 32px;}
  .split,.faq-wrap{gap:40px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .nav-toggle{display:flex;}
  .nav-search{display:none;}
  .main-nav{
    position:fixed;top:0;right:0;z-index:60;
    width:84vw;max-width:360px;height:100vh;
    background:var(--surface);
    flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 22px 28px;margin:0;
    border-radius:var(--r-lg) 0 0 var(--r-lg);
    box-shadow:var(--sh-3);overflow-y:auto;
    transform:translateX(105%);
    transition:transform .26s var(--ease);
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{height:48px;font-size:16px;padding:0 14px;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{background:var(--brand-050);}
  .step-track{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  .step-track::before{display:none;}
  .split,.faq-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-bar{grid-template-columns:1fr;}
  .cta-art{min-height:96px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .container{padding:0 16px;}
  .header-side .btn-sm{display:none;}
  .hero-panel{border-radius:var(--r-lg);min-height:auto;}
  .hero-copy{padding:36px 22px 24px;}
  .hero-copy p{font-size:16px;}
  .hero-stats{padding:0 22px 28px;}
  .stat-badge{padding:9px 16px;gap:10px;}
  .stat-badge b{font-size:20px;}
  .bento{grid-template-columns:1fr;gap:18px;}
  .bento-card.is-wide{min-height:320px;}
  .bento-card .card-media img,.bento-card.is-tall .card-media img{height:190px;}
  .wide-body{padding:26px 22px;}
  .step-track{grid-template-columns:1fr;}
  .checklist{grid-template-columns:1fr;}
  .fact-grid{grid-template-columns:1fr;}
  .cta-body{padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .crumbs{padding:20px 0 14px;}
}
@media (max-width:480px){
  .hero-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B3F35;
  --brand-700:#0E5B4C;
  --brand-500:#2E8571;
  --brand-200:#A8CFC2;
  --brand-050:#EAF3EF;
  --accent-600:#B96A21;
  --accent-500:#D08A33;
  --accent-100:#F7E7CE;
  --bg:#F8F5EF;
  --surface:#FFFFFF;
  --surface-alt:#F1EDE4;
  --ink-900:#14201D;
  --ink-700:#33413D;
  --ink-500:#5F6F6A;
  --line:#E3DED3;
  --ok:#2F7D5B;
  --warn:#C9761F;
  --err:#B4453A;
  --grad-brand:linear-gradient(115deg,#0E5B4C 0%,#2E8571 55%,#D08A33 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --sh-1:0 2px 8px rgba(20,32,29,.06);
  --sh-2:0 12px 32px rgba(20,32,29,.10);
  --sh-3:0 24px 60px rgba(14,91,76,.18);
  --dur:240ms;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid var(--accent-100);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand-200);color:var(--brand-900)}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(248,245,239,.86);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  transition:box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(248,245,239,.95);
  box-shadow:var(--sh-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:64px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:36px;height:36px;
  border-radius:12px;
  background:var(--grad-brand);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:15px;
  box-shadow:var(--sh-1);
}
.brand-text{
  font-size:17px;
  font-weight:800;
  color:var(--ink-900);
  letter-spacing:-.2px;
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:6px;
}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--ink-700);
  border-radius:10px;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-050)}
.nav-link.is-active{color:var(--brand-700);font-weight:700}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:1px;
  height:2px;
  border-radius:2px;
  background:var(--grad-brand);
}
.header-side{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:34px;
  padding:0 14px;
  border-radius:999px;
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--ink-500);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-search input{
  width:132px;
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
  color:var(--ink-900);
}
.nav-search input::placeholder{color:var(--ink-500)}
.nav-search:focus-within{
  border-color:var(--brand-500);
  box-shadow:0 0 0 3px var(--brand-050);
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--surface);
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--brand-700);
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.nav-toggle:hover{border-color:var(--brand-200);box-shadow:var(--sh-1)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-backdrop{
  position:fixed;
  inset:0;
  background:rgba(20,32,29,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
  z-index:65;
}
.nav-backdrop.is-show{opacity:1;visibility:visible}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-md);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease),filter var(--dur) var(--ease),color var(--dur) var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-brand);
  color:#fff;
  box-shadow:var(--sh-1);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.btn-outline{
  background:transparent;
  border-color:var(--brand-700);
  color:var(--brand-700);
}
.btn-outline:hover{background:var(--brand-050);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:12px}
.link-text{
  color:var(--brand-700);
  font-weight:600;
  font-size:15px;
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:4px;
  transition:color var(--dur) var(--ease);
}
.link-text:hover{color:var(--accent-600)}
.link-text i{font-size:12px;margin-left:4px;transition:transform var(--dur) var(--ease)}
.link-text:hover i{transform:translateX(3px)}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:22px 0 0;
  font-size:13px;
  color:var(--ink-500);
}
.breadcrumb a{transition:color var(--dur) var(--ease)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink-900)}

/* ============ 首屏 ============ */
.page-hero{padding:8px 0 72px}
.page-hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:52px;
  align-items:center;
  padding-top:32px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand-700);
  background:var(--brand-050);
  border-radius:999px;
  padding:6px 16px;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:16px;height:2px;
  border-radius:2px;
  background:var(--grad-brand);
}
.hero-copy h1{
  font-size:46px;
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.5px;
  color:var(--ink-900);
  margin-bottom:20px;
}
.hero-lead{
  font-size:17px;
  line-height:1.9;
  color:var(--ink-700);
  max-width:560px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin:28px 0 30px;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.stat-badge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 20px;
  border-radius:999px;
  border:1px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-brand);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.stat-badge:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.stat-num{
  font-size:22px;
  font-weight:800;
  color:var(--brand-700);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.stat-label{font-size:13px;color:var(--ink-500);line-height:1.4}
.hero-media{
  position:relative;
  border-radius:var(--r-xl);
  overflow:hidden;
  box-shadow:var(--sh-2);
  aspect-ratio:16/11;
  background:var(--surface-alt);
}
.hero-media img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:var(--grad-brand);
  opacity:.22;
  pointer-events:none;
}
.hero-float{
  position:absolute;
  right:20px;
  bottom:20px;
  z-index:2;
  background:#fff;
  border-radius:var(--r-md);
  padding:14px 20px;
  box-shadow:var(--sh-2);
  display:flex;
  flex-direction:column;
  line-height:1.3;
}
.hero-float .stat-num{font-size:24px}
.hero-float .stat-label{font-size:12px}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-alt{background:var(--surface-alt)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{
  font-size:32px;
  font-weight:700;
  line-height:1.3;
  color:var(--ink-900);
  letter-spacing:-.3px;
  margin-bottom:14px;
}
.section-head p{font-size:16px;color:var(--ink-700)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ============ 编号条目 ============ */
.numbered-list{border-top:1px solid var(--line)}
.numbered-item{
  display:grid;
  grid-template-columns:112px 1fr;
  gap:32px;
  padding:36px 24px;
  margin:0 -24px;
  border-bottom:1px solid var(--line);
  border-radius:var(--r-md);
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.numbered-item:hover{
  background:linear-gradient(90deg,rgba(234,243,239,.95) 0%,rgba(234,243,239,.25) 70%,rgba(234,243,239,0) 100%);
}
.num{
  font-size:56px;
  font-weight:800;
  line-height:1;
  font-variant-numeric:tabular-nums;
  color:var(--accent-500);
  -webkit-text-stroke:2px var(--accent-500);
  opacity:.85;
}
@supports (-webkit-text-stroke:2px #000){
  .num{color:transparent;-webkit-text-stroke:2px var(--accent-500);opacity:1}
}
.item-body h3{
  font-size:21px;
  font-weight:700;
  color:var(--ink-900);
  line-height:1.45;
  margin-bottom:10px;
}
.item-body p{
  font-size:16px;
  color:var(--ink-700);
  max-width:760px;
  margin-bottom:16px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-050);
  color:var(--brand-700);
  font-size:13px;
  font-weight:600;
  border:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.tag i{font-size:11px;color:var(--brand-500)}
.tag:hover{border-color:var(--brand-200);transform:translateY(-1px)}

/* ============ 等级阶梯 ============ */
.ladder-wrap{padding-top:8px}
.ladder{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  align-items:end;
}
.ladder-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px 24px;
  box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.ladder-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-200)}
.ladder-card:nth-child(1){min-height:222px}
.ladder-card:nth-child(2){min-height:252px}
.ladder-card:nth-child(3){min-height:282px}
.ladder-card:nth-child(4){
  min-height:312px;
  border-color:var(--brand-500);
  background:linear-gradient(180deg,rgba(234,243,239,.85) 0%,#fff 60%);
  box-shadow:var(--sh-2);
}
.ladder-card:nth-child(4)::after{
  content:"含多账号协同";
  position:absolute;
  top:-13px;
  right:20px;
  background:var(--grad-brand);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
}
.ladder-step{
  font-size:12px;
  font-weight:800;
  letter-spacing:.1em;
  color:var(--accent-600);
  font-variant-numeric:tabular-nums;
  margin-bottom:12px;
}
.ladder-card h3{
  font-size:19px;
  font-weight:700;
  color:var(--ink-900);
  margin-bottom:10px;
}
.ladder-card p{
  font-size:14px;
  line-height:1.8;
  color:var(--ink-500);
  margin-bottom:18px;
}
.ladder-card ul li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14px;
  color:var(--ink-700);
  margin-bottom:10px;
  line-height:1.6;
}
.ladder-card ul li i{
  color:var(--brand-500);
  font-size:12px;
  margin-top:7px;
  flex-shrink:0;
}

/* ============ 内容形式 ============ */
.format-grid{
  display:grid;
  grid-template-columns:1fr 1.05fr;
  gap:56px;
  align-items:center;
}
.format-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  aspect-ratio:4/3;
  box-shadow:var(--sh-2);
  background:var(--surface-alt);
}
.format-media img{width:100%;height:100%;object-fit:cover}
.format-tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.format-tags .tag{
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--ink-700);
  font-weight:500;
  padding:10px 18px;
  font-size:14px;
}
.format-tags .tag:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-200);transform:translateY(-2px)}
.format-list{margin-top:28px}
.format-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  color:var(--ink-700);
}
.format-list li i{color:var(--accent-500);margin-top:8px;font-size:12px}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:48px;
  align-items:start;
}
.faq-aside h2{
  font-size:32px;
  font-weight:700;
  line-height:1.3;
  color:var(--ink-900);
  letter-spacing:-.3px;
  margin-bottom:14px;
}
.faq-aside p{font-size:15px;color:var(--ink-700);margin-bottom:22px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:4px;
  background:var(--grad-brand);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform var(--dur) var(--ease);
}
.faq-item.is-open{border-color:var(--brand-200);box-shadow:var(--sh-2)}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 22px;
  background:none;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
  cursor:pointer;
}
.faq-q .faq-icon{
  flex-shrink:0;
  width:26px;height:26px;
  border-radius:50%;
  background:var(--brand-050);
  color:var(--brand-700);
  display:grid;
  place-items:center;
  font-size:12px;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--brand-700);color:#fff}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 200ms ease-out;
}
.faq-a p{
  padding:0 22px 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-700);
}

/* ============ CTA 通栏 ============ */
.cta-section{padding:0 0 88px}
.cta-strip{
  display:grid;
  grid-template-columns:1fr 2fr;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
}
.cta-strip-left{
  background:var(--grad-brand);
  color:#fff;
  padding:40px 34px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:10px;
}
.cta-strip-left strong{
  font-size:22px;
  font-weight:800;
  line-height:1.35;
  letter-spacing:-.2px;
}
.cta-strip-left span{font-size:13px;color:rgba(255,255,255,.86)}
.cta-strip-right{
  padding:40px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-strip-right p{
  font-size:15px;
  color:var(--ink-700);
  max-width:520px;
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 状态样式（空态 / 加载 / 错误） ============ */
.state-box{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  padding:64px 24px;
  text-align:center;
  background:var(--surface);
  border:1px dashed var(--line);
  border-radius:var(--r-lg);
}
.state-box i{font-size:28px;color:var(--brand-500)}
.state-box p{font-size:15px;color:var(--ink-500)}
.empty-state{background:var(--surface-alt);border-style:dashed}
.error-state{border-color:var(--err);border-style:solid}
.error-state i{color:var(--err)}
.error-state p{color:var(--err)}
.skeleton{
  border-radius:var(--r-md);
  background:linear-gradient(90deg,var(--surface-alt) 25%,#e7e1d4 37%,var(--surface-alt) 63%);
  background-size:400% 100%;
  animation:shimmer 1.4s infinite linear;
}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:0 0}}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--brand-900);
  color:#CFE0DA;
  padding:64px 0 0;
  margin-top:0;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:var(--grad-brand);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand-text{
  display:block;
  color:#fff;
  font-size:20px;
  font-weight:800;
  margin-bottom:14px;
}
.footer-brand p{font-size:14px;line-height:1.8;color:#A9C4BB;max-width:330px}
.footer-lang{display:flex;gap:10px;margin-top:20px}
.footer-lang a{
  font-size:13px;
  padding:5px 14px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.2);
  color:#CFE0DA;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.footer-lang a:hover{background:rgba(255,255,255,.1);color:#fff}
.footer-lang a.is-active{background:rgba(255,255,255,.14);color:#fff;border-color:transparent}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-col li{margin-bottom:10px;font-size:14px;color:#A9C4BB;line-height:1.7}
.footer-col a{color:#A9C4BB;transition:color var(--dur) var(--ease)}
.footer-col a:hover{color:var(--brand-200)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding-top:20px;
  padding-bottom:32px;
  font-size:13px;
  color:#8FAFA6;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero-copy h1{font-size:40px}
  .nav-search input{width:104px}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .cta-section{padding:0 0 64px}
  .nav-toggle{display:flex}
  .nav-search{display:none}
  .main-nav{
    position:fixed;
    top:0;right:0;
    width:84vw;
    max-width:360px;
    height:100vh;
    margin:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:84px 20px 32px;
    background:var(--surface);
    border-radius:24px 0 0 24px;
    box-shadow:var(--sh-3);
    transform:translateX(105%);
    transition:transform 260ms var(--ease);
    z-index:70;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{
    display:flex;
    align-items:center;
    height:48px;
    padding:0 16px;
    font-size:16px;
    border-radius:14px;
  }
  .nav-link.is-active{background:var(--brand-050)}
  .nav-link.is-active::after{display:none}
  .page-hero{padding:4px 0 48px}
  .page-hero-grid{grid-template-columns:1fr;gap:36px;padding-top:24px}
  .hero-copy h1{font-size:34px}
  .hero-lead{max-width:none}
  .hero-media{order:2;aspect-ratio:16/10}
  .numbered-item{grid-template-columns:88px 1fr;gap:24px;padding:30px 20px;margin:0 -20px}
  .num{font-size:44px}
  .ladder{grid-template-columns:repeat(2,1fr);align-items:stretch}
  .ladder-card{min-height:auto !important}
  .ladder-card:nth-child(4)::after{right:16px}
  .format-grid{grid-template-columns:1fr;gap:36px}
  .format-media{order:2}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .cta-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .cta-section{padding:0 0 48px}
  .header-inner{gap:12px}
  .brand-text{font-size:16px}
  .header-side .btn{display:none}
  .hero-copy h1{font-size:29px;letter-spacing:-.3px}
  .hero-lead{font-size:16px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 auto;padding:0 18px}
  .hero-badges{gap:10px}
  .stat-badge{padding:9px 16px}
  .stat-num{font-size:19px}
  .stat-label{font-size:12px}
  .hero-float{right:14px;bottom:14px;padding:12px 16px}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:23px}
  .faq-aside h2{font-size:23px}
  .numbered-item{grid-template-columns:1fr;gap:12px;padding:24px 16px;margin:0 -16px}
  .num{font-size:38px}
  .item-body h3{font-size:18px}
  .item-body p{font-size:15px}
  .ladder{grid-template-columns:1fr}
  .cta-strip-left{padding:28px 24px}
  .cta-strip-right{padding:28px 24px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px;padding-top:18px;padding-bottom:26px}
}
@media (max-width:480px){
  .hero-copy h1{font-size:26px}
  .hero-badges{flex-direction:column;align-items:flex-start}
  .stat-badge{width:100%}
  .btn{height:44px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}