/* roulang page: index */
:root{
  --brand-900:#0B3B34;--brand-700:#0F6B5C;--brand-500:#17907C;--brand-100:#E4F0EC;
  --accent-600:#C2591F;--accent-500:#E0662F;--accent-100:#FBE9DD;
  --bg:#F7F5F0;--surface:#FFFFFF;--surface-2:#F1EFE8;
  --ink:#12221F;--ink-2:#3C4B47;--muted:#5C6B66;--line:#E3E1DA;
  --ok:#2E8C74;--warn:#C99A2E;--err:#C0392B;
  --lv1:#8FA8A1;--lv2:#2E8C74;--lv3:#0B5248;--lv4:#C2591F;
  --shadow-1:0 1px 2px rgba(18,34,31,.06),0 8px 24px -12px rgba(18,34,31,.14);
  --shadow-2:0 12px 32px -14px rgba(18,34,31,.22);
  --r-xs:6px;--r-sm:10px;--r-md:14px;--r-lg:20px;--r-pill:999px;
  --sect:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:0;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--brand-900)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.35;letter-spacing:-.01em}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sect) 0}
.section-tight{padding:64px 0}
.section-head{margin-bottom:40px;max-width:760px}
.section-head h2{font-size:31px;font-weight:600;color:var(--ink)}
.section-head p{margin-top:12px;color:var(--muted);font-size:15px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-700);letter-spacing:.04em}
.eyebrow::before{content:"";width:14px;height:2px;border-radius:2px;background:var(--brand-500)}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.head-row .section-head{margin-bottom:0}
.link-more{font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px}
.link-more::after{content:"›";font-size:18px;line-height:1}
.link-more:hover{color:var(--accent-600)}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:50;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--brand-900)}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:var(--r-sm);background:var(--brand-100);color:var(--brand-700)}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-.01em;color:var(--brand-900)}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{padding:8px 14px;border-radius:var(--r-pill);font-size:15px;color:var(--ink-2);transition:background .16s ease,color .16s ease}
.nav-link:hover{background:var(--brand-100);color:var(--brand-700)}
.nav-link.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-box{position:relative;display:flex;align-items:center;width:220px}
.search-box svg{position:absolute;left:13px;color:var(--muted);pointer-events:none}
.search-box input{width:100%;height:38px;padding:0 14px 0 38px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--surface-2);color:var(--ink);font-size:14px;outline:none;transition:border-color .16s ease,box-shadow .16s ease,background .16s ease}
.search-box input::placeholder{color:var(--muted)}
.search-box input:focus{border-color:var(--brand-500);background:var(--surface);box-shadow:0 0 0 3px rgba(23,144,124,.18)}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);cursor:pointer;padding:0;place-items:center;gap:4px}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-2)}
.menu-toggle:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-pill);font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;transition:transform .16s ease,background .16s ease,color .16s ease,box-shadow .16s ease,border-color .16s ease}
.btn-primary{background:var(--accent-500);color:#fff}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-900)}
.btn-ghost{background:transparent;color:var(--brand-700);padding:0;height:auto;text-decoration:underline;text-underline-offset:5px;border-radius:0}
.btn-ghost:hover{color:var(--accent-600)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn .spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* 首屏 */
.hero{background:linear-gradient(180deg,var(--bg) 0%,#FFFFFF 100%);border-bottom:1px solid var(--line);padding:76px 0 68px}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.hero-copy h1{font-size:46px;font-weight:700;line-height:1.24;letter-spacing:-.01em;color:var(--brand-900);margin-top:18px}
.hero-sub{margin-top:16px;font-size:17px;color:var(--ink-2);max-width:560px;line-height:1.8}
.hero-cta{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.hero-points{display:flex;gap:26px;margin-top:32px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);flex:0 0 auto}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3.2;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-2)}
.level-float{position:absolute;left:-18px;bottom:-22px;width:262px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-2);padding:18px 20px}
.lf-head{display:flex;align-items:center;gap:10px;padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:12px}
.lf-name{font-size:15px;font-weight:600;color:var(--ink)}
.lf-list li{display:flex;align-items:baseline;gap:8px;font-size:13px;color:var(--muted);line-height:2}
.lf-list b{font-size:16px;font-weight:700;color:var(--brand-900);font-variant-numeric:tabular-nums;min-width:52px;display:inline-block}

/* 徽章 */
.badge{display:inline-flex;align-items:center;justify-content:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em}
.level-badge{display:inline-grid;place-items:center;height:24px;min-width:34px;padding:0 9px;border-radius:var(--r-pill);font-size:12px;font-weight:700;color:#fff;letter-spacing:.03em}
.lv1{background:var(--lv1)}
.lv2{background:var(--lv2)}
.lv3{background:var(--lv3)}
.lv4{background:linear-gradient(135deg,var(--accent-500),#14231F)}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:var(--r-pill);background:var(--surface-2);color:var(--ink-2);font-size:12.5px;font-weight:500}

/* 指标条 */
.stats{background:var(--surface);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr))}
.stat{padding:28px 22px;border-left:1px solid var(--line)}
.stat:first-child{border-left:none;padding-left:0}
.stat-num{font-size:28px;font-weight:700;color:var(--brand-900);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-num small{font-size:14px;font-weight:600;color:var(--brand-700);margin-left:4px}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--muted)}

/* 权益对照表 */
.table-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);overflow:hidden}
.table-wrap{overflow-x:auto;position:relative}
.table-wrap::after{content:"";position:absolute;top:0;right:0;width:36px;height:100%;background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.92));pointer-events:none}
.benefit-table{width:100%;min-width:880px;border-collapse:collapse}
.benefit-table th,.benefit-table td{padding:0 20px;text-align:left;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--ink-2)}
.benefit-table thead th{position:sticky;top:68px;z-index:6;height:60px;background:var(--surface);font-weight:600;color:var(--ink);vertical-align:middle;border-bottom:1px solid var(--line)}
.benefit-table thead th .th-name{display:block;font-size:15px;font-weight:600}
.benefit-table thead th .th-lv{display:block;font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.06em}
.benefit-table thead th.col-item{width:230px}
.benefit-table tbody tr{height:56px}
.benefit-table tbody tr:nth-child(even) td,.benefit-table tbody tr:nth-child(even) th{background:#FAF9F5}
.benefit-table tbody tr:hover td,.benefit-table tbody tr:hover th{background:var(--brand-100)}
.benefit-table .col-item{position:sticky;left:0;z-index:4;background:var(--surface);font-weight:600;color:var(--ink);border-right:1px solid var(--line)}
.benefit-table tbody tr:nth-child(even) .col-item{background:#FAF9F5}
.benefit-table tbody tr:hover .col-item{background:var(--brand-100)}
.benefit-table .recommend{position:relative;background:var(--accent-100)}
.benefit-table tbody tr:nth-child(even) td.recommend{background:var(--accent-100)}
.benefit-table tbody tr:hover td.recommend{background:#F8DDC8}
.rec-badge{position:absolute;top:0;left:50%;transform:translate(-50%,-50%);display:inline-flex;align-items:center;height:22px;padding:0 12px;border-radius:var(--r-pill);background:var(--accent-500);color:#fff;font-size:12px;font-weight:700;letter-spacing:.04em}
.group-row th{height:52px;padding:0 20px;background:var(--surface-2);font-size:16px;font-weight:600;color:var(--brand-900);border-bottom:1px solid var(--line);border-top:1px solid var(--line);position:sticky;left:0}
.ic-yes{color:var(--ok);font-weight:700;font-size:16px}
.ic-no{color:#BFC3BE;font-weight:600}
.table-note{margin-top:16px;font-size:13.5px;color:var(--muted)}

/* 等级卡 */
.level-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.level-card{position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .18s ease,box-shadow .18s ease}
.level-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.level-card .bar{height:6px}
.level-card .lc-body{padding:26px 24px 24px;display:flex;flex-direction:column;flex:1}
.lc-top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.lc-name{font-size:20px;font-weight:600;color:var(--ink)}
.lc-desc{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.lc-list{display:grid;gap:10px;margin-bottom:22px}
.lc-list li{display:flex;gap:9px;font-size:14px;color:var(--ink-2);line-height:1.7}
.lc-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--brand-500)}
.lc-cta{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-700)}
.lc-cta:hover{color:var(--accent-600)}
.level-card.is-lv4{background:linear-gradient(140deg,var(--accent-500) 0%,#8C3D14 42%,#14231F 100%);border-color:transparent;color:#fff}
.level-card.is-lv4 .lc-name,.level-card.is-lv4 .lc-desc,.level-card.is-lv4 .lc-list li,.level-card.is-lv4 .lc-cta{color:#fff}
.level-card.is-lv4 .lc-desc{color:rgba(255,255,255,.78)}
.level-card.is-lv4 .lc-list li::before{background:rgba(255,255,255,.85)}
.level-card.is-lv4 .lc-cta{text-decoration:underline;text-underline-offset:6px}
.level-card.is-lv4 .lc-cta:hover{color:var(--accent-100)}

/* 专属内容 */
.content-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.content-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .18s ease,box-shadow .18s ease}
.content-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.content-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.cc-body{padding:20px 22px 24px;position:relative}
.cc-body h3{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:10px}
.cc-body h3 a{color:inherit}
.cc-body h3 a:hover{color:var(--brand-700)}
.cc-excerpt{position:relative;font-size:14px;color:var(--muted);line-height:1.85;max-height:3.7em;overflow:hidden}
.cc-excerpt::after{content:"";position:absolute;right:0;bottom:0;width:70%;height:1.85em;background:linear-gradient(90deg,rgba(255,255,255,0),var(--surface) 78%)}
.cc-lock{position:absolute;right:20px;bottom:20px;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--accent-100);color:var(--accent-600)}
.cc-meta{margin-top:16px;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted)}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px;align-items:start}
.lead-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .18s ease,box-shadow .18s ease}
.lead-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.lead-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.lead-body{padding:22px 24px 26px}
.lead-body h3{font-size:21px;font-weight:600;margin:12px 0 10px}
.lead-body h3 a{color:var(--ink)}
.lead-body h3 a:hover{color:var(--brand-700)}
.lead-body p{font-size:14.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-side{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);padding:8px 22px}
.mini-list li{border-bottom:1px solid var(--line);padding:16px 0}
.mini-list li:last-child{border-bottom:none}
.mini-list a{display:block;font-size:15px;font-weight:600;color:var(--ink);line-height:1.6}
.mini-list a:hover{color:var(--brand-700)}
.mini-meta{display:flex;align-items:center;gap:12px;margin-top:8px;font-size:12.5px;color:var(--muted)}
.meta{display:flex;align-items:center;gap:12px;margin-top:14px;font-size:13px;color:var(--muted)}
.meta .dot::before{content:"·";margin-right:12px;color:var(--line)}
.empty-state{display:flex;align-items:center;gap:12px;padding:34px 24px;border:1px dashed var(--line);border-radius:var(--r-md);background:var(--surface);color:var(--muted);font-size:14.5px}
.empty-state svg{flex:0 0 auto;color:var(--brand-500)}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);padding:8px 28px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;min-height:56px;padding:14px 0;background:none;border:none;text-align:left;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;transition:color .16s ease}
.faq-q:hover{color:var(--brand-700)}
.faq-q:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:var(--r-xs)}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:0;width:18px;height:2px;border-radius:2px;background:var(--brand-700);transform:translateY(-50%);transition:transform .2s ease,opacity .2s ease}
.faq-icon::after{transform:translateY(-50%) rotate(90deg)}
.faq-item.open .faq-icon::after{transform:translateY(-50%) rotate(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-a p{padding:0 40px 22px 0;font-size:14.5px;color:var(--muted);line-height:1.8}

/* CTA 表单 */
.cta-band{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:center}
.cta-copy h2{font-size:30px;font-weight:600;color:var(--brand-900)}
.cta-copy p{margin-top:14px;font-size:15.5px;color:var(--ink-2);max-width:420px}
.apply-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);padding:28px}
.form-row{margin-bottom:18px}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.input{width:100%;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);color:var(--ink);outline:none;transition:border-color .16s ease,box-shadow .16s ease}
.input::placeholder{color:var(--muted)}
.input:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,144,124,.18)}
.input.is-error{border-color:var(--err);box-shadow:0 0 0 3px rgba(192,57,43,.12)}
.err-msg{display:none;margin-top:8px;font-size:12px;color:var(--err)}
.err-msg.show{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);margin-bottom:20px}
.check-row input{width:16px;height:16px;margin-top:5px;accent-color:var(--brand-500);flex:0 0 auto}
.form-ok{display:none;align-items:center;gap:10px;padding:14px 16px;border-radius:var(--r-sm);background:var(--brand-100);color:var(--brand-900);font-size:14px;font-weight:600;margin-top:16px}
.form-ok.show{display:flex}
.form-ok svg{color:var(--brand-500);flex:0 0 auto}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.76);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff}
.footer-brand .brand-text{color:#fff}
.footer-desc{margin-top:16px;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.66);max-width:320px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px;font-size:13.5px}
.footer-col a{color:rgba(255,255,255,.72)}
.footer-col a:hover{color:var(--accent-100)}
.footer-col span{color:rgba(255,255,255,.72)}
.footer-bottom{margin-top:52px;border-top:1px solid rgba(255,255,255,.14);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.58)}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(18,34,31,.45);opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:60}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:var(--surface);z-index:70;transform:translateX(102%);transition:transform .24s ease;display:flex;flex-direction:column;padding:20px 22px 28px;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:34px;height:34px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);font-size:18px;line-height:1;color:var(--ink-2);cursor:pointer}
.drawer-search{margin-bottom:18px}
.drawer-search input{width:100%;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface-2);outline:none}
.drawer-search input:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,144,124,.18);background:var(--surface)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-nav a{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:var(--r-sm);font-size:15px;color:var(--ink-2)}
.drawer-nav a:hover{background:var(--brand-100);color:var(--brand-700)}
.drawer-nav a.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}

/* 响应式 */
@media (max-width:1279px){
  .hero-copy h1{font-size:42px}
  .container{padding:0 24px}
}
@media (max-width:1023px){
  :root{--sect:72px}
  .main-nav,.search-box{display:none}
  .menu-toggle{display:grid}
  .hero{padding:56px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-copy h1{font-size:36px}
  .hero-visual img{aspect-ratio:16/9}
  .level-float{left:16px;bottom:-18px;width:250px}
  .stats-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .stat{border-left:1px solid var(--line);padding:22px 18px}
  .stat:nth-child(3n+1){border-left:none;padding-left:0}
  .level-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .content-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .benefit-table thead th{top:68px}
}
@media (max-width:767px){
  :root{--sect:48px}
  .container{padding:0 16px}
  body{font-size:15.5px}
  .brand-text{font-size:17px}
  .hero-copy h1{font-size:31px}
  .hero-sub{font-size:15.5px}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%}
  .hero-points{gap:14px;flex-direction:column}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(3n+1){border-left:1px solid var(--line);padding-left:18px}
  .stat:nth-child(2n+1){border-left:none;padding-left:0}
  .section-head h2{font-size:25px}
  .cta-copy h2{font-size:24px}
  .level-grid{grid-template-columns:1fr}
  .content-grid{grid-template-columns:1fr}
  .level-float{position:static;width:100%;margin-top:16px}
  .faq-wrap{padding:6px 18px}
  .faq-a p{padding-right:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .benefit-table thead th{top:68px;height:56px}
  .benefit-table thead th.col-item{width:170px}
  .benefit-table .col-item{font-size:13.5px}
  .apply-card{padding:22px}
}
@media (max-width:400px){
  .hero-copy h1{font-size:27px}
  .stat-num{font-size:23px}
  .btn{padding:0 18px;font-size:14.5px}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
  --brand-900:#0B3B34;
  --brand-700:#0F6B5C;
  --brand-500:#17907C;
  --brand-100:#E4F0EC;
  --accent-600:#C2591F;
  --accent-500:#E0662F;
  --accent-100:#FBE9DD;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#F1EFE8;
  --ink:#12221F;
  --ink-2:#3C4B47;
  --muted:#5C6B66;
  --line:#E3E1DA;
  --ok:#2E8C74;
  --warn:#C99A2E;
  --err:#C0392B;
  --l1:#8FA8A1;
  --l2:#2E8C74;
  --l3:#0B5248;
  --l4:#C2591F;
  --shadow-1:0 1px 2px rgba(18,34,31,.06), 0 8px 24px -12px rgba(18,34,31,.14);
  --shadow-2:0 12px 32px -14px rgba(18,34,31,.22);
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sec:96px;
  --font-cn:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote,ul,ol,dl{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease,background-color .16s ease,border-color .16s ease;}
a:hover{color:var(--brand-900);}
img{max-width:100%;display:block;}
button,input,select,textarea{font:inherit;color:inherit;}
svg{display:block;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
::selection{background:var(--brand-100);color:var(--brand-900);}

/* ============ 容器与栅格 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.grid{display:grid;gap:24px;}
.section{padding:var(--sec) 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head h2{
  font-size:32px;
  font-weight:600;
  letter-spacing:-.01em;
  color:var(--brand-900);
  line-height:1.35;
}
.section-head p{
  margin-top:14px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--brand-700);
}
.eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  background:var(--brand-500);
  border-radius:2px;
}
.tnum{font-variant-numeric:tabular-nums;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn-primary{
  background:var(--accent-500);
  color:#fff;
  box-shadow:0 8px 20px -12px rgba(194,89,31,.7);
}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);background:var(--accent-600);}
.btn-outline{
  background:transparent;
  border-color:var(--brand-700);
  color:var(--brand-700);
}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-900);border-color:var(--brand-900);}
.btn-ghost{
  background:transparent;
  border:none;
  color:var(--brand-700);
  padding:0 8px;
  height:auto;
  text-decoration:underline;
  text-underline-offset:4px;
}
.btn-ghost:hover{color:var(--brand-900);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn.is-loading{pointer-events:none;opacity:.85;}
.btn.is-loading::after{
  content:"";
  width:14px;height:14px;
  border-radius:50%;
  border:2px solid rgba(255,255,255,.55);
  border-top-color:#fff;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  font-weight:600;
  line-height:1;
}
.badge-cat{background:var(--brand-100);color:var(--brand-900);}
.badge-soft{background:var(--surface-2);color:var(--ink-2);font-weight:500;}
.badge-accent{background:var(--accent-100);color:var(--accent-600);}
.badge-l1{background:rgba(143,168,161,.16);color:#5D746E;border:1px solid rgba(143,168,161,.5);}
.badge-l2{background:rgba(46,140,116,.14);color:#1F6B58;border:1px solid rgba(46,140,116,.45);}
.badge-l3{background:rgba(11,82,72,.12);color:var(--brand-900);border:1px solid rgba(11,82,72,.4);}
.badge-l4{background:linear-gradient(135deg,var(--accent-500),#14231F);color:#fff;border:1px solid transparent;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 28px -20px rgba(18,34,31,.42);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:11px;
  background:var(--brand-100);
  color:var(--brand-700);
}
.brand-text{
  font-size:19px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--brand-900);
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
}
.nav-link:hover{background:var(--brand-100);color:var(--brand-900);}
.nav-link.active{color:var(--brand-700);font-weight:600;background:var(--brand-100);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--brand-500);
}
.header-right{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  width:224px;
  height:42px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:var(--surface-2);
  color:var(--muted);
  transition:border-color .16s ease,box-shadow .16s ease,background-color .16s ease;
}
.search-box:focus-within{
  background:var(--surface);
  border-color:var(--brand-500);
  box-shadow:0 0 0 2px rgba(23,144,124,.22);
}
.search-box input{
  flex:1;
  min-width:0;
  border:none;
  background:transparent;
  font-size:14px;
  outline:none;
  color:var(--ink);
}
.search-box input::placeholder{color:var(--muted);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--surface);
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--brand-900);
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.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);}
.mobile-drawer{
  border-top:1px solid var(--line);
  background:var(--surface);
  padding:12px 0 20px;
}
.mobile-drawer[hidden]{display:none;}
.mobile-drawer a{
  display:flex;
  align-items:center;
  height:48px;
  padding:0 4px;
  font-size:15.5px;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a:hover,.mobile-drawer a.active{color:var(--brand-700);background:var(--brand-100);}
.mobile-drawer .drawer-cta{margin-top:16px;}

/* ============ 文章首屏 ============ */
.article-hero{
  position:relative;
  background:
    linear-gradient(120deg,rgba(11,59,52,.94),rgba(15,107,92,.88)),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  color:#fff;
  padding:56px 0 52px;
}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.72);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.breadcrumb .sep{color:rgba(255,255,255,.45);}
.breadcrumb .current{
  max-width:520px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:#fff;
}
.article-hero .badge-cat{
  background:rgba(255,255,255,.14);
  color:#fff;
  border:1px solid rgba(255,255,255,.28);
}
.article-hero h1{
  margin-top:18px;
  font-size:44px;
  font-weight:700;
  line-height:1.32;
  letter-spacing:-.01em;
  max-width:900px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.2);
  font-size:13.5px;
  color:rgba(255,255,255,.78);
}
.article-meta .dot{
  width:4px;height:4px;
  border-radius:50%;
  background:rgba(255,255,255,.5);
}
.article-meta .strong{color:#fff;font-weight:600;}

/* ============ 正文布局 ============ */
.article-wrap{
  padding:56px 0 0;
  background:var(--bg);
}
.article-shell{
  max-width:820px;
  margin:0 auto;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  padding:48px 56px 40px;
}
.article-body{max-width:760px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--ink-2);}
.article-body > * + *{margin-top:1.2em;}
.article-body h2{
  margin-top:2em;
  font-size:28px;
  font-weight:600;
  line-height:1.45;
  color:var(--brand-900);
  letter-spacing:-.01em;
  padding-left:14px;
  border-left:3px solid var(--brand-500);
}
.article-body h3{
  margin-top:1.7em;
  font-size:21px;
  font-weight:600;
  line-height:1.5;
  color:var(--ink);
}
.article-body h4{
  margin-top:1.4em;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
}
.article-body p{color:var(--ink-2);}
.article-body strong{color:var(--ink);font-weight:600;}
.article-body a{
  color:var(--brand-700);
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
}
.article-body a:hover{color:var(--brand-900);text-decoration-thickness:2px;}
.article-body ul,.article-body ol{margin-left:1.5em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.5em 0;}
.article-body li::marker{color:var(--brand-500);}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  background:var(--surface-2);
  border-left:3px solid var(--brand-500);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--ink-2);
}
.article-body blockquote p{margin:0;}
.article-body img{
  width:100%;
  border-radius:var(--r-md);
  margin:1.6em 0 .6em;
  object-fit:cover;
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{
  font-size:13px;
  color:var(--muted);
  text-align:center;
  line-height:1.7;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  font-size:14.5px;
  margin:1.6em 0;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  overflow:hidden;
}
.article-body thead th{
  background:var(--surface-2);
  color:var(--brand-900);
  font-weight:600;
  text-align:left;
  padding:12px 14px;
  border-bottom:1px solid var(--line);
}
.article-body tbody td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
  color:var(--ink-2);
  font-variant-numeric:tabular-nums;
}
.article-body tbody tr:nth-child(even){background:#FAF9F5;}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body hr{
  border:none;
  border-top:1px solid var(--line);
  margin:2.2em 0;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;
  background:var(--surface-2);
  padding:2px 6px;
  border-radius:var(--r-xs);
  color:var(--brand-900);
}

/* ============ 会员锁定段 ============ */
.member-lock{
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
  margin:40px auto 0;
  max-width:820px;
  padding:22px 26px;
  min-height:96px;
  background:var(--accent-100);
  border:1px dashed rgba(194,89,31,.42);
  border-radius:var(--r-md);
}
.lock-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  flex-shrink:0;
  border-radius:50%;
  background:#fff;
  color:var(--accent-600);
  box-shadow:var(--shadow-1);
}
.lock-text{flex:1;min-width:220px;}
.lock-text strong{
  display:block;
  font-size:16px;
  color:var(--ink);
  margin-bottom:4px;
}
.lock-text p{
  font-size:14px;
  color:var(--ink-2);
  line-height:1.7;
}
.member-lock .btn{flex-shrink:0;}

/* ============ 空态 ============ */
.empty-state{
  text-align:center;
  padding:56px 24px;
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
}
.empty-state .empty-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:56px;height:56px;
  margin:0 auto 18px;
  border-radius:50%;
  background:#fff;
  color:var(--muted);
  box-shadow:var(--shadow-1);
}
.empty-state h2{font-size:20px;font-weight:600;color:var(--ink);}
.empty-state p{margin-top:10px;color:var(--muted);font-size:14.5px;}
.empty-state .btn{margin-top:22px;}

/* ============ 相关推荐 ============ */
.related{padding:72px 0 0;}
.related-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:26px;
}
.related-head h2{font-size:26px;font-weight:600;color:var(--brand-900);letter-spacing:-.01em;}
.related-head p{font-size:14px;color:var(--muted);margin-top:8px;}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.related-card{
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.related-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:#D6D3C9;
}
.related-card h3{
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  color:var(--ink);
}
.related-card p{
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
}
.related-card .rc-foot{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.related-card .rc-foot .badge{height:24px;font-size:12px;padding:0 10px;}

/* ============ 底部动作区 ============ */
.article-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  max-width:820px;
  margin:40px auto 0;
  padding:20px 0 0;
  border-top:1px solid var(--line);
  font-size:14px;
  color:var(--muted);
}

/* ============ 开通 CTA ============ */
.cta-band{
  background:var(--brand-900);
  color:#fff;
  padding:72px 0;
  margin-top:88px;
}
.cta-inner{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:center;
}
.cta-copy h2{
  font-size:30px;
  font-weight:600;
  line-height:1.4;
  letter-spacing:-.01em;
}
.cta-copy p{
  margin-top:14px;
  font-size:15px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
}
.cta-points{margin-top:22px;display:grid;gap:10px;}
.cta-points li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14.5px;
  color:rgba(255,255,255,.86);
}
.cta-points svg{color:var(--brand-500);flex-shrink:0;}
.cta-form{
  background:var(--surface);
  color:var(--ink);
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:var(--shadow-2);
}
.cta-form h3{font-size:19px;font-weight:600;color:var(--brand-900);}
.cta-form .form-hint{font-size:13.5px;color:var(--muted);margin-top:8px;}
.field{margin-top:18px;}
.field label{
  display:block;
  font-size:13.5px;
  font-weight:600;
  color:var(--ink-2);
  margin-bottom:8px;
}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--surface);
  font-size:15px;
  outline:none;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);}
.field input:focus,.field textarea:focus{
  border-color:var(--brand-500);
  box-shadow:0 0 0 2px rgba(23,144,124,.22);
}
.field.has-error input,.field.has-error textarea{border-color:var(--err);}
.field .err-msg{
  display:none;
  margin-top:8px;
  font-size:12.5px;
  color:var(--err);
}
.field.has-error .err-msg{display:block;}
.check-row{
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin-top:18px;
  font-size:13.5px;
  color:var(--muted);
  line-height:1.7;
}
.check-row input{margin-top:4px;width:16px;height:16px;accent-color:var(--brand-500);}
.check-row a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.form-actions{margin-top:22px;}
.form-note{
  margin-top:14px;
  font-size:12.5px;
  color:var(--muted);
  text-align:center;
}
.form-success{
  display:none;
  margin-top:18px;
  padding:14px 16px;
  background:var(--brand-100);
  border:1px solid rgba(23,144,124,.35);
  border-radius:var(--r-sm);
  font-size:14px;
  color:var(--brand-900);
}
.form-success.is-visible{display:block;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.78);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.68);
  max-width:320px;
}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a{color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--accent-100);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sec:80px;}
  .article-hero h1{font-size:38px;}
}
@media (max-width:1023px){
  :root{--sec:72px;}
  .main-nav{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:64px;}
  .header-right{gap:10px;}
  .article-shell{padding:36px 32px 32px;}
  .article-hero{padding:44px 0 40px;}
  .article-hero h1{font-size:33px;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-desc{max-width:none;}
}
@media (max-width:767px){
  :root{--sec:48px;}
  body{font-size:15px;}
  .container{padding:0 16px;}
  .section-head h2{font-size:24px;}
  .article-hero{padding:32px 0 30px;}
  .article-hero h1{font-size:27px;line-height:1.4;}
  .breadcrumb{font-size:12.5px;margin-bottom:16px;}
  .breadcrumb .current{max-width:200px;}
  .article-wrap{padding:32px 0 0;}
  .article-shell{padding:26px 18px 24px;border-radius:var(--r-md);}
  .article-body{font-size:15px;line-height:1.85;}
  .article-body h2{font-size:22px;margin-top:1.7em;}
  .article-body h3{font-size:18px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;font-size:13.5px;}
  .member-lock{padding:18px;gap:14px;}
  .member-lock .btn{width:100%;}
  .related{padding:48px 0 0;}
  .related-head{flex-direction:column;align-items:flex-start;}
  .related-grid{grid-template-columns:1fr;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:48px 0;margin-top:56px;}
  .cta-copy h2{font-size:23px;}
  .cta-form{padding:22px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{height:46px;}
}
@media (max-width:400px){
  .brand-text{font-size:17px;}
  .article-hero h1{font-size:24px;}
  .section-head h2{font-size:21px;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B3B34;
  --brand-700:#0F6B5C;
  --brand-500:#17907C;
  --brand-100:#E4F0EC;
  --accent-600:#C2591F;
  --accent-500:#E0662F;
  --accent-100:#FBE9DD;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#F1EFE8;
  --ink:#12221F;
  --ink-2:#3C4B47;
  --muted:#5C6B66;
  --line:#E3E1DA;
  --ok:#2E8C74;
  --warn:#C99A2E;
  --err:#C0392B;
  --l1:#8FA8A1;
  --l2:#2E8C74;
  --l3:#0B5248;
  --l4:#C2591F;
  --shadow-1:0 1px 2px rgba(18,34,31,.06),0 8px 24px -12px rgba(18,34,31,.14);
  --shadow-2:0 12px 32px -14px rgba(18,34,31,.22);
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --header-h:68px;
  --font-cn:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::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);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease,background-color .16s ease}
a:hover{color:var(--brand-900)}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-0.01em}
h1{font-size:46px;font-weight:700;line-height:1.25}
h2{font-size:31px;font-weight:600;line-height:1.35}
h3{font-size:21px;font-weight:600;line-height:1.5}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.nums,.stat-value,.cell-value,td.n{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:var(--r-xs)}

/* ---------- 容器 ---------- */
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.reading{max-width:800px;margin:0 auto}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--surface-2)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px;margin-bottom:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-700);margin-bottom:14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);display:block}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;background:transparent;color:var(--ink);
  transition:background-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:var(--surface)}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-900)}
.btn-ghost{color:var(--brand-700);padding:0 8px;height:auto;border-radius:var(--r-xs)}
.btn-ghost:hover{color:var(--brand-900);text-decoration:underline;text-underline-offset:4px}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.8}
.btn.is-loading::before{
  content:"";width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.6;
}
.badge-soft{background:var(--surface-2);color:var(--ink-2)}
.badge-brand{background:var(--brand-100);color:var(--brand-900)}
.badge-accent{background:var(--accent-100);color:var(--accent-600)}
.badge-l1{background:rgba(143,168,161,.18);color:#4A615B}
.badge-l2{background:rgba(46,140,116,.16);color:#1F6552}
.badge-l3{background:rgba(11,82,72,.14);color:var(--l3)}
.badge-l4{background:linear-gradient(120deg,var(--accent-500),#14231F);color:#fff}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--ink-2);font-size:12.5px;
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{
  height:var(--header-h);
  display:flex;align-items:center;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{color:var(--brand-700);display:inline-flex}
.brand-text{font-size:19px;font-weight:700;color:var(--brand-900);letter-spacing:-0.01em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-link{
  display:inline-block;padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);
}
.nav-link:hover{background:var(--brand-100);color:var(--brand-900)}
.nav-link.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{position:relative}
.search-box input{
  width:220px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--bg);
  padding:0 16px 0 40px;font-size:14px;color:var(--ink);
  transition:border-color .16s ease,box-shadow .16s ease,background-color .16s ease;
}
.search-box input::placeholder{color:var(--muted)}
.search-box input:focus{outline:none;background:var(--surface);border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(23,144,124,.28)}
.search-box svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--muted)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--surface);cursor:pointer;
  align-items:center;justify-content:center;color:var(--ink);
}
.nav-toggle:hover{background:var(--brand-100)}
.drawer{
  display:none;border-top:1px solid var(--line);background:var(--surface);
  padding:12px 0 20px;
}
.drawer.open{display:block}
.drawer .drawer-link{
  display:flex;align-items:center;height:48px;padding:0 24px;
  font-size:15px;color:var(--ink-2);font-weight:500;
}
.drawer .drawer-link:hover{background:var(--brand-100);color:var(--brand-900)}
.drawer .drawer-link.active{color:var(--brand-700);font-weight:600;background:var(--brand-100)}
.drawer-foot{padding:16px 24px 0;display:grid;gap:12px}
.drawer-foot input{
  height:48px;border-radius:var(--r-sm);border:1px solid var(--line);
  padding:0 16px;font-size:15px;width:100%;
}
.drawer-foot input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(23,144,124,.28)}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(180deg,var(--bg) 0%,#FFFFFF 100%);
  padding:72px 0 0;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{margin-bottom:18px}
.hero .lede{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:20px;font-size:14px;color:var(--muted)}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand-500)}
.hero-media{position:relative}
.hero-media img{
  width:100%;height:400px;object-fit:cover;
  border-radius:var(--r-lg);box-shadow:var(--shadow-2);
}
.hero-float{
  position:absolute;left:-28px;bottom:-28px;
  width:250px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow-2);padding:20px;
}
.hero-float .hf-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.hero-float .hf-title{font-size:14px;font-weight:600;color:var(--ink)}
.hero-float dl{display:grid;gap:10px;margin:0}
.hero-float .hf-row{display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px dashed var(--line);padding-bottom:8px}
.hero-float .hf-row:last-child{border-bottom:none;padding-bottom:0}
.hero-float dt{font-size:13px;color:var(--muted)}
.hero-float dd{margin:0;font-size:17px;font-weight:700;color:var(--brand-900);font-variant-numeric:tabular-nums}

/* ---------- 指标条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid var(--line);margin-top:64px;
}
.stats li{padding:26px 24px;border-right:1px solid var(--line)}
.stats li:first-child{padding-left:0}
.stats li:last-child{border-right:none}
.stat-value{display:block;font-size:30px;font-weight:700;color:var(--brand-900);line-height:1.2}
.stat-label{display:block;font-size:13.5px;color:var(--muted);margin-top:4px}

/* ---------- 对比表 ---------- */
.table-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-1);overflow:hidden;
}
.table-scroll{overflow:visible}
table.benefit{width:100%;border-collapse:collapse;font-size:15px}
table.benefit caption{text-align:left;padding:22px 28px 0;font-size:14px;color:var(--muted)}
table.benefit thead th{
  position:sticky;top:var(--header-h);z-index:4;
  background:var(--surface);height:56px;padding:0 18px;
  font-size:14.5px;font-weight:600;color:var(--ink);text-align:center;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
table.benefit thead th:first-child{text-align:left;padding-left:28px}
table.benefit thead th .th-sub{display:block;font-size:12px;font-weight:500;color:var(--muted)}
table.benefit th.is-recommend{background:var(--accent-100);color:var(--accent-600);position:relative}
table.benefit td.is-recommend{background:#FEFA F7}
table.benefit td.is-recommend{background:#FDF6F1}
table.benefit tbody tr:nth-child(even) td{background:#FAF9F5}
table.benefit tbody tr:nth-child(even) td.is-recommend{background:#FBF1E9}
table.benefit td{
  height:56px;padding:0 18px;text-align:center;color:var(--ink-2);
  border-bottom:1px solid var(--line);font-size:14.5px;
}
table.benefit td:first-child{
  text-align:left;font-weight:600;color:var(--ink);padding-left:28px;
  position:sticky;left:0;z-index:2;background:var(--surface);
}
table.benefit tbody tr:nth-child(even) td:first-child{background:#FAF9F5}
table.benefit tr.group-row td{
  height:auto;padding:20px 28px 10px;text-align:left;
  font-size:16px;font-weight:600;color:var(--brand-900);
  background:var(--surface)!important;border-bottom:1px solid var(--line);
}
table.benefit tr:last-child td{border-bottom:none}
.tick{display:inline-flex;color:var(--ok)}
.dash{color:#B9BDB6}
.cell-value{font-weight:600;color:var(--ink)}
.pill-rec{
  position:absolute;top:-1px;left:50%;transform:translate(-50%,-50%);
  background:var(--accent-500);color:#fff;font-size:12px;font-weight:600;
  padding:3px 12px;border-radius:var(--r-pill);white-space:nowrap;
}
.scroll-hint{display:none;font-size:13px;color:var(--muted);padding:12px 28px 0}

/* ---------- 要点卡 ---------- */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.point-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease,transform .18s ease;
}
.point-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.point-icon{
  width:44px;height:44px;border-radius:var(--r-sm);background:var(--brand-100);
  color:var(--brand-700);display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.point-card h3{font-size:19px;margin-bottom:10px}
.point-card p{font-size:14.5px;color:var(--muted);margin-bottom:16px}
.point-list{display:grid;gap:8px}
.point-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2)}
.point-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);margin-top:9px;flex:0 0 auto}

/* ---------- 开通流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;position:relative;box-shadow:var(--shadow-1);
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:var(--r-pill);
  background:var(--brand-900);color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);margin-bottom:0}

/* ---------- 内容预览 ---------- */
.preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.preview-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease,transform .18s ease;
}
.preview-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.preview-card img{width:100%;height:180px;object-fit:cover;background:var(--surface-2)}
.preview-body{padding:22px;position:relative}
.preview-body h3{font-size:17px;margin-bottom:10px}
.preview-body p{
  font-size:14px;color:var(--muted);margin-bottom:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.preview-lock{
  position:absolute;right:20px;bottom:18px;display:inline-flex;align-items:center;gap:5px;
  font-size:12.5px;color:var(--accent-600);background:var(--accent-100);
  padding:3px 10px;border-radius:var(--r-pill);
}
.preview-fade{
  position:absolute;left:0;right:0;bottom:56px;height:46px;
  background:linear-gradient(180deg,rgba(255,255,255,0) 0%,#fff 100%);
  pointer-events:none;
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:none;cursor:pointer;
  min-height:56px;padding:16px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:16.5px;font-weight:600;color:var(--ink);text-align:left;
  transition:color .16s ease;
}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--brand-700);font-size:16px;line-height:1;transition:transform .2s ease,background-color .16s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand-100)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-a p{padding:0 0 20px;font-size:15px;color:var(--ink-2);line-height:1.85;max-width:820px}

/* ---------- CTA + 表单 ---------- */
.cta-panel{
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);padding:48px;
  display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;
}
.cta-panel h2{font-size:28px;margin-bottom:14px}
.cta-panel .cta-note{font-size:15px;color:var(--ink-2);margin-bottom:22px}
.cta-meta{display:grid;gap:10px;font-size:14px;color:var(--muted)}
.cta-meta li{display:flex;gap:10px;align-items:flex-start}
.cta-meta li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);margin-top:9px;flex:0 0 auto}
.form{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:28px}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink)}
.form-input{
  width:100%;height:48px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--surface);
  padding:0 16px;font-size:15px;color:var(--ink);font-family:inherit;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.form-input::placeholder{color:var(--muted)}
.form-input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(23,144,124,.28)}
.form-input.has-error{border-color:var(--err);box-shadow:0 0 0 2px rgba(192,57,43,.18)}
.form-error{display:none;font-size:12.5px;color:var(--err);margin-top:6px}
.form-error.show{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);margin-bottom:18px}
.check-row input{margin-top:5px;width:16px;height:16px;accent-color:var(--brand-500)}
.form-success{
  display:none;margin-top:16px;padding:14px 16px;border-radius:var(--r-sm);
  background:var(--brand-100);color:var(--brand-900);font-size:14px;
}
.form-success.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#CFE0DA;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 40px;
}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-mark{color:#7FC8B6}
.footer-desc{font-size:14px;color:#A9C2BB;margin-top:16px;max-width:320px;line-height:1.75}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:#A9C2BB}
.footer-col a:hover{color:var(--accent-100)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8FA8A1;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{gap:40px}
  .hero-float{left:-16px;bottom:-20px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .main-nav,.search-box{display:none}
  .nav-toggle{display:inline-flex}
  h1{font-size:36px}
  h2{font-size:27px}
  .hero{padding-top:48px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media img{height:320px}
  .hero-float{position:static;width:100%;margin-top:20px;left:auto;bottom:auto}
  .stats{grid-template-columns:repeat(2,1fr);margin-top:40px}
  .stats li{border-right:none;padding:20px 0}
  .stats li:nth-child(odd){padding-right:20px}
  .point-grid,.preview-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .cta-panel{grid-template-columns:1fr;padding:32px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .scroll-hint{display:block}
  table.benefit{min-width:760px}
  table.benefit thead th{position:static}
  table.benefit td:first-child{position:static}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section--tight{padding:40px 0}
  h1{font-size:31px}
  h2{font-size:24px}
  h3{font-size:19px}
  .hero-actions .btn{width:100%}
  .point-grid,.preview-grid,.steps,.footer-grid{grid-template-columns:1fr}
  .cta-panel{padding:24px}
  .form{padding:20px}
  .footer-grid{padding:44px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-media img{height:240px}
}
@media (max-width:400px){
  h1{font-size:28px}
  .stat-value{font-size:25px}
  .btn{padding:0 18px;font-size:14px}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B3B34;
  --brand-700:#0F6B5C;
  --brand-500:#17907C;
  --brand-100:#E4F0EC;
  --accent-600:#C2591F;
  --accent-500:#E0662F;
  --accent-100:#FBE9DD;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#F1EFE8;
  --ink:#12221F;
  --ink-2:#3C4B47;
  --muted:#5C6B66;
  --line:#E3E1DA;
  --ok:#2E8C74;
  --warn:#C99A2E;
  --err:#C0392B;
  --l1:#8FA8A1;
  --l2:#2E8C74;
  --l3:#0B5248;
  --l4a:#C2591F;
  --l4b:#14231F;
  --shadow-1:0 1px 2px rgba(18,34,31,.06), 0 8px 24px -12px rgba(18,34,31,.14);
  --shadow-2:0 12px 32px -14px rgba(18,34,31,.22);
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --font:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease;}
a:hover{color:var(--accent-600);}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;line-height:1.3;}
h1{font-size:46px;font-weight:700;}
h2{font-size:31px;font-weight:600;}
h3{font-size:21px;font-weight:600;}
p{margin:0 0 1.2em;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-700);
  letter-spacing:.06em;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand-500);border-radius:2px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);margin:0;font-size:16px;}
.lead{color:var(--ink-2);}
.text-muted{color:var(--muted);}
.small{font-size:14px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 10px 22px -14px rgba(224,102,47,.85);}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent;}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-900);}
.btn-ghost{color:var(--brand-700);padding:0 8px;height:auto;background:none;}
.btn-ghost:hover{color:var(--accent-600);text-decoration:underline;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn.is-loading{pointer-events:none;opacity:.75;min-width:150px;}
.spinner{
  width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;
  animation:spin .7s linear infinite;display:none;
}
.btn.is-loading .spinner{display:inline-block;}
.btn.is-loading .btn-label{opacity:.9;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.6;
}
.badge-soft{background:var(--surface-2);color:var(--ink-2);}
.badge-brand{background:var(--brand-100);color:var(--brand-900);}
.badge-accent{background:var(--accent-100);color:var(--accent-600);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--brand-900);}
.brand:hover{color:var(--brand-900);}
.brand-mark{display:inline-flex;color:var(--brand-700);}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.01em;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;
  padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--ink-2);font-weight:500;
  transition:background-color .16s ease,color .16s ease;
}
.nav-link:hover{background:var(--brand-100);color:var(--brand-900);}
.nav-link.active{color:var(--brand-700);background:var(--brand-100);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:224px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--muted);
  transition:border-color .16s ease,box-shadow .16s ease,background-color .16s ease;
}
.search-box:focus-within{background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(23,144,124,.28);}
.search-box input{
  border:0;outline:0;background:transparent;width:100%;
  font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--muted);}
.nav-toggle{
  display:none;width:42px;height:42px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);
  color:var(--brand-900);cursor:pointer;
}
.nav-toggle:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.nav-toggle svg{width:20px;height:20px;}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:var(--surface);
  padding:12px 24px 20px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .nav-link{height:48px;width:100%;border-radius:var(--r-sm);padding:0 14px;}
.mobile-drawer .search-box{width:100%;margin:10px 0 14px;}
.mobile-drawer .btn{width:100%;}

/* ---------- hero ---------- */
.page-hero{
  background:linear-gradient(180deg,var(--bg) 0%,#FFFFFF 100%);
  padding:72px 0 80px;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.crumb{font-size:14px;color:var(--muted);margin-bottom:20px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand-700);}
.crumb span{margin:0 8px;color:#B9B6AD;}
.page-hero h1{margin-bottom:16px;max-width:15em;}
.page-hero .lead{font-size:17px;max-width:36em;margin-bottom:26px;}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;height:340px;object-fit:cover;
  border-radius:var(--r-lg);box-shadow:var(--shadow-2);
  background:var(--surface-2);
}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow-2);
  padding:16px 20px;min-width:216px;
}
.hero-float .badge{margin-bottom:10px;}
.hero-float .hf-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;font-size:14px;color:var(--ink-2);}
.hero-float .hf-row strong{font-size:17px;color:var(--brand-900);font-weight:700;}

/* ---------- stat strip ---------- */
.stat-strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--surface);
}
.stat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;}
.stat-item{padding:26px 22px;border-left:1px solid var(--line);}
.stat-item:first-child{border-left:0;}
.stat-item strong{display:block;font-size:27px;font-weight:700;color:var(--brand-900);letter-spacing:-.02em;}
.stat-item span{display:block;font-size:13.5px;color:var(--muted);margin-top:2px;}

/* ---------- tier ladder ---------- */
.ladder{display:flex;flex-direction:column;gap:22px;}
.tier{
  display:grid;grid-template-columns:8px 1fr;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
}
.tier:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.tier-band{width:8px;}
.tier-l1 .tier-band{background:var(--l1);}
.tier-l2 .tier-band{background:var(--l2);}
.tier-l3 .tier-band{background:var(--l3);}
.tier-l4 .tier-band{background:linear-gradient(180deg,var(--l4a),var(--l4b));}
.tier-body{padding:26px 30px 24px;}
.tier-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:14px;}
.tier-badge{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:52px;height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:700;color:#fff;letter-spacing:.04em;
}
.tier-l1 .tier-badge{background:var(--l1);}
.tier-l2 .tier-badge{background:var(--l2);}
.tier-l3 .tier-badge{background:var(--l3);}
.tier-l4 .tier-badge{background:linear-gradient(120deg,var(--l4a),var(--l4b));}
.tier-head h3{font-size:21px;}
.tier-step{margin-left:auto;font-size:13px;color:var(--muted);}
.tier-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px 26px;margin-bottom:18px;}
.tier-list li{position:relative;padding-left:18px;font-size:15px;color:var(--ink-2);}
.tier-list li::before{
  content:"";position:absolute;left:0;top:.78em;
  width:7px;height:7px;border-radius:50%;background:var(--brand-500);
}
.tier-l1 .tier-list li::before{background:var(--l1);}
.tier-l2 .tier-list li::before{background:var(--l2);}
.tier-l3 .tier-list li::before{background:var(--l3);}
.tier-l4 .tier-list li::before{background:var(--l4a);}
.tier-cond{
  display:flex;align-items:flex-start;gap:10px;
  background:var(--surface-2);border-radius:var(--r-sm);
  padding:12px 16px;font-size:14px;color:var(--ink-2);
}
.tier-cond strong{color:var(--brand-900);font-weight:600;}
.tier-indent-1{margin-left:22px;}
.tier-indent-2{margin-left:44px;}
.tier-indent-3{margin-left:66px;}

/* ---------- upgrade flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.flow-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--shadow-1);position:relative;
  transition:transform .18s ease,box-shadow .18s ease;
}
.flow-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.flow-card::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:13px;font-weight:700;color:var(--brand-500);
  letter-spacing:.08em;margin-bottom:12px;
}
.flow-card h3{font-size:18px;margin-bottom:8px;}
.flow-card p{font-size:14.5px;color:var(--muted);margin:0;}

/* ---------- scenario cards ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.card-media img{width:100%;height:186px;object-fit:cover;background:var(--surface-2);}
.card-body{padding:24px;}
.card-body h3{font-size:19px;margin-bottom:10px;}
.card-body p{font-size:14.5px;color:var(--muted);margin-bottom:14px;}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);}

/* ---------- criteria list ---------- */
.criteria{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.criteria-list{border-top:1px solid var(--line);}
.criteria-item{
  display:grid;grid-template-columns:150px 1fr;gap:20px;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.criteria-item dt{font-weight:600;color:var(--brand-900);font-size:15px;}
.criteria-item dd{margin:0;font-size:15px;color:var(--ink-2);}
.media-panel img{width:100%;height:300px;object-fit:cover;border-radius:var(--r-md);box-shadow:var(--shadow-1);background:var(--surface-2);}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:14px 4px;background:none;border:0;cursor:pointer;
  text-align:left;font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color .16s ease;
}
.faq-q:hover{color:var(--brand-700);}
.faq-q:focus-visible{outline:2px solid var(--brand-500);outline-offset:-2px;}
.faq-icon{
  flex:0 0 auto;position:relative;width:22px;height:22px;border-radius:50%;
  background:var(--brand-100);color:var(--brand-700);
  transition:transform .2s ease,background-color .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:2px;}
.faq-icon::after{width:2px;height:11px;transition:opacity .2s ease;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--accent-100);color:var(--accent-600);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a p{padding:0 40px 20px 4px;margin:0;color:var(--ink-2);font-size:15px;}
.faq-item.is-open .faq-a{max-height:340px;}

/* ---------- cta / form ---------- */
.cta-band{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.cta-left h2{font-size:29px;margin-bottom:14px;}
.cta-left p{color:var(--ink-2);}
.cta-points li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);margin-bottom:6px;}
.cta-points li::before{
  content:"";position:absolute;left:0;top:.8em;width:8px;height:8px;border-radius:50%;
  background:var(--accent-500);
}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-1);padding:30px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px;}
.field input[type="text"],.field input[type="email"],.field input[type="tel"],.field select{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);color:var(--ink);outline:none;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.field input::placeholder{color:var(--muted);}
.field input:focus,.field select:focus{border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(23,144,124,.28);}
.field.has-error input,.field.has-error select{border-color:var(--err);box-shadow:0 0 0 2px rgba(192,57,43,.18);}
.field-error{display:none;font-size:12.5px;color:var(--err);margin-top:6px;}
.field.has-error .field-error{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--muted);margin-bottom:18px;}
.check-row input{margin-top:5px;width:16px;height:16px;accent-color:var(--brand-700);}
.form-note{font-size:13px;color:var(--muted);margin:14px 0 0;}
.form-status{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-sm);
  font-size:14px;
}
.form-status.is-ok{display:block;background:var(--brand-100);color:var(--brand-900);}
.form-status.is-err{display:block;background:#FBEAE7;color:var(--err);}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#D8E4E0;padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.site-footer .brand{color:#fff;}
.site-footer .brand-mark{color:#7FC9B7;}
.site-footer .brand-text{color:#fff;}
.footer-desc{font-size:14px;color:#A9C3BC;margin:14px 0 0;max-width:32em;}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600;}
.footer-col ul li{margin-bottom:9px;font-size:14px;}
.footer-col a{color:#B9D2CB;}
.footer-col a:hover{color:var(--accent-100);}
.footer-col span{color:#A9C3BC;}
.footer-bottom{
  margin-top:46px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#9DB8B1;
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
  h1{font-size:42px;}
  .tier-indent-3{margin-left:44px;}
  .tier-indent-2{margin-left:30px;}
  .tier-indent-1{margin-left:15px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .main-nav,.header-actions .search-box,.header-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media img{height:290px;}
  .hero-float{left:16px;bottom:-20px;}
  .stat-grid{grid-template-columns:repeat(3,1fr);}
  .stat-item{border-left:0;border-top:1px solid var(--line);}
  .stat-item:nth-child(-n+3){border-top:0;}
  .stat-item:nth-child(3n+1){border-left:0;}
  .tier-list{grid-template-columns:repeat(2,1fr);}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .criteria,.cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .section{padding:48px 0;}
  .container{padding:0 16px;}
  h1{font-size:31px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .page-hero{padding:44px 0 56px;}
  .page-hero .lead{font-size:15.5px;}
  .hero-cta .btn{width:100%;}
  .hero-float{position:static;margin-top:16px;min-width:0;box-shadow:var(--shadow-1);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat-item{padding:20px 16px;}
  .stat-item strong{font-size:23px;}
  .tier-indent-1,.tier-indent-2,.tier-indent-3{margin-left:0;}
  .tier-body{padding:22px 20px;}
  .tier-list{grid-template-columns:1fr;}
  .flow-grid,.scene-grid{grid-template-columns:1fr;}
  .criteria-item{grid-template-columns:1fr;gap:6px;}
  .faq-a p{padding-right:8px;}
  .form-card{padding:22px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:400px){
  h1{font-size:28px;}
  .brand-text{font-size:17px;}
  .btn{padding:0 18px;font-size:14px;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B3B34;
  --brand-700:#0F6B5C;
  --brand-500:#17907C;
  --brand-100:#E4F0EC;
  --accent-600:#C2591F;
  --accent-500:#E0662F;
  --accent-100:#FBE9DD;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#F1EFE8;
  --ink:#12221F;
  --ink-2:#3C4B47;
  --muted:#5C6B66;
  --line:#E3E1DA;
  --ok:#2E8C74;
  --warn:#C99A2E;
  --err:#C0392B;
  --l1:#8FA8A1;
  --l2:#2E8C74;
  --l3:#0B5248;
  --l4a:#C2591F;
  --l4b:#14231F;
  --shadow-1:0 1px 2px rgba(18,34,31,.06),0 8px 24px -12px rgba(18,34,31,.14);
  --shadow-2:0 12px 32px -14px rgba(18,34,31,.22);
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sp-section:96px;
  --font: "HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent-600);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-0.01em;}
h2{font-size:31px;font-weight:600;line-height:1.35;}
h3{font-size:21px;font-weight:600;line-height:1.5;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;color:var(--brand-700);border-color:var(--brand-700);}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700);}
.btn-ghost{background:transparent;color:var(--brand-700);padding:0 4px;height:auto;}
.btn-ghost:hover{color:var(--accent-600);text-decoration:underline;text-underline-offset:5px;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}
.btn.is-loading{pointer-events:none;opacity:.85;}
.spinner{
  width:16px;height:16px;border:2px solid rgba(255,255,255,.45);
  border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:none;
}
.btn.is-loading .spinner{display:inline-block;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:50;background:var(--surface);
  border-bottom:1px solid var(--line);transition:box-shadow .2s ease;
}
.site-header.scrolled{box-shadow:var(--shadow-1);}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--brand-900);flex:0 0 auto;}
.brand:hover{color:var(--brand-900);}
.brand-mark{display:inline-flex;color:var(--brand-700);}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-0.01em;}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.nav-link{
  display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--ink-2);transition:background-color .16s ease,color .16s ease;
}
.nav-link:hover{background:var(--brand-100);color:var(--brand-700);}
.nav-link.active{color:var(--brand-700);font-weight:600;background:var(--brand-100);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;gap:8px;width:222px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:var(--surface-2);
  transition:border-color .16s ease,box-shadow .16s ease,background-color .16s ease;
}
.search-box:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(23,144,124,.22);background:var(--surface);}
.search-box svg{flex:0 0 auto;color:var(--muted);}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink);}
.search-box input::placeholder{color:var(--muted);}
.hamburger{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);cursor:pointer;align-items:center;justify-content:center;color:var(--ink-2);
}
.hamburger:hover{background:var(--brand-100);color:var(--brand-700);}
.drawer{display:none;border-top:1px solid var(--line);background:var(--surface);padding:12px 24px 20px;}
.drawer.open{display:block;}
.drawer a{display:flex;align-items:center;height:48px;padding:0 12px;border-radius:var(--r-sm);color:var(--ink-2);font-size:16px;}
.drawer a:hover,.drawer a.active{background:var(--brand-100);color:var(--brand-700);}
.drawer .drawer-search{margin:10px 0 14px;}
.drawer .btn{width:100%;}

/* ============ Hero ============ */
.page-hero{
  background:linear-gradient(180deg,var(--bg) 0%,#FFFFFF 100%);
  padding:72px 0 64px;border-bottom:1px solid var(--line);
}
.hero-inner{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;color:var(--brand-700);
  background:var(--brand-100);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);}
.page-hero h1{font-size:46px;font-weight:700;line-height:1.24;letter-spacing:-0.01em;}
.hero-sub{font-size:18px;color:var(--ink-2);margin-top:16px;max-width:560px;}
.hero-desc{font-size:15px;color:var(--muted);margin-top:12px;max-width:600px;}
.hero-cta{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap;}
.hero-media{position:relative;}
.hero-media img{width:100%;height:360px;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-2);}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow-2);padding:16px 18px;width:250px;
}
.hero-float .hf-top{display:flex;align-items:center;gap:8px;margin-bottom:12px;}
.hero-float .hf-title{font-size:14px;font-weight:600;color:var(--ink);}
.hf-stats{display:flex;justify-content:space-between;gap:10px;}
.hf-stats div{text-align:left;}
.hf-num{font-variant-numeric:tabular-nums;font-size:18px;font-weight:700;color:var(--brand-700);display:block;line-height:1.3;}
.hf-label{font-size:12px;color:var(--muted);}
.metric-bar{border-top:1px solid var(--line);margin-top:56px;padding-top:28px;}
.metric-list{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric-list li{border-left:2px solid var(--brand-100);padding-left:16px;}
.metric-num{font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;color:var(--brand-900);display:block;line-height:1.3;}
.metric-text{font-size:14px;color:var(--muted);}
.metric-text strong{font-weight:600;}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-section) 0;}
.section-alt{background:var(--surface-2);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head p{color:var(--muted);font-size:15px;margin-top:14px;}
.section-head .kicker{
  display:inline-block;font-size:13px;font-weight:600;color:var(--accent-600);
  letter-spacing:.08em;margin-bottom:12px;
}
.section-split{display:grid;grid-template-columns:1fr 1.35fr;gap:56px;align-items:start;}

/* ============ 徽章 / 标签 ============ */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--ink-2);font-size:12.5px;font-weight:500;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;color:#fff;
}
.badge-l1{background:var(--l1);}
.badge-l2{background:var(--l2);}
.badge-l3{background:var(--l3);}
.badge-l4{background:linear-gradient(100deg,var(--l4a),var(--l4b));}
.badge-soft{background:var(--accent-100);color:var(--accent-600);}

/* ============ 筛选标签行 ============ */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;padding:24px 0 0;
}
.filter-chip{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface);color:var(--ink-2);
  font-size:14px;font-weight:500;cursor:default;
}
.filter-chip.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;}

/* ============ 内容网格 ============ */
.content-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:36px;}
.content-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .18s ease,transform .18s ease;
}
.content-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;height:212px;object-fit:cover;transition:transform .3s ease;}
.content-card:hover .card-media img{transform:scale(1.02);}
.lock-badge{
  position:absolute;top:14px;right:14px;display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 12px;border-radius:var(--r-pill);background:rgba(11,59,52,.86);
  color:#fff;font-size:12.5px;font-weight:600;backdrop-filter:blur(2px);
}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.card-body h3{font-size:19px;}
.card-desc{
  position:relative;margin-top:10px;font-size:14.5px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc::after{
  content:"";position:absolute;right:0;bottom:0;width:64px;height:100%;
  background:linear-gradient(90deg,rgba(255,255,255,0),var(--surface));
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);
}
.card-foot .link-arrow{color:var(--brand-700);font-weight:600;}
.card-foot .link-arrow:hover{color:var(--accent-600);}

/* ============ 翻页 ============ */
.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:44px;}
.pager a,.pager span{
  display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);
  font-size:14px;color:var(--ink-2);
}
.pager a:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-100);}
.pager .current{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600;}
.pager .is-disabled{opacity:.45;cursor:not-allowed;}

/* ============ 清单区 ============ */
.check-list{display:grid;gap:18px;}
.check-item{
  display:grid;grid-template-columns:40px 1fr;gap:16px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 24px;box-shadow:var(--shadow-1);
}
.check-icon{
  width:40px;height:40px;border-radius:var(--r-sm);background:var(--brand-100);
  display:flex;align-items:center;justify-content:center;color:var(--brand-700);
}
.check-item h3{font-size:18px;}
.check-item p{font-size:14.5px;color:var(--muted);margin-top:8px;}

/* ============ 时间线 ============ */
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:0;right:0;top:22px;height:1px;background:var(--line);
}
.step{position:relative;padding-top:0;}
.step-dot{
  width:44px;height:44px;border-radius:50%;background:var(--surface);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--brand-700);
  font-variant-numeric:tabular-nums;position:relative;z-index:1;box-shadow:var(--shadow-1);
}
.step h3{font-size:17px;margin-top:18px;}
.step p{font-size:14px;color:var(--muted);margin-top:8px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;padding:16px 0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand-700);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand-700);
  font-size:16px;line-height:1;transition:transform .2s ease,background-color .2s ease,color .2s ease;
}
.faq-item.open .faq-icon{background:var(--brand-700);color:#fff;border-color:var(--brand-700);transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a p{padding:0 44px 20px 0;font-size:15px;color:var(--muted);line-height:1.85;}

/* ============ CTA + 表单 ============ */
.cta-section{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.cta-copy h2{font-size:29px;}
.cta-copy p{color:var(--muted);margin-top:16px;font-size:15px;}
.cta-points{margin-top:24px;display:grid;gap:12px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--ink-2);}
.cta-points svg{flex:0 0 auto;margin-top:5px;color:var(--brand-500);}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);padding:32px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.field input[type="text"],.field input[type="email"],.field input[type="tel"]{
  width:100%;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);color:var(--ink);outline:none;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.field input::placeholder{color:var(--muted);}
.field input:focus{border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(23,144,124,.22);}
.field.has-error input{border-color:var(--err);}
.field .err-msg{display:none;font-size:12.5px;color:var(--err);margin-top:6px;}
.field.has-error .err-msg{display:block;}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);margin-bottom:20px;}
.agree input{margin-top:4px;width:16px;height:16px;accent-color:var(--brand-700);}
.form-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.form-note{font-size:13px;color:var(--muted);}
.form-status{display:none;margin-top:16px;padding:14px 16px;border-radius:var(--r-sm);font-size:14px;}
.form-status.is-ok{display:block;background:var(--brand-100);color:var(--brand-900);border:1px solid rgba(23,144,124,.3);}
.form-status.is-err{display:block;background:#FBE9E7;color:var(--err);border:1px solid rgba(192,57,43,.28);}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:#D5E3DF;padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.site-footer .brand{color:#fff;}
.site-footer .brand:hover{color:#fff;}
.site-footer .brand-mark{color:#7FC3B4;}
.footer-desc{font-size:14px;color:#A9C1BB;margin-top:16px;max-width:300px;line-height:1.8;}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col span{font-size:14px;color:#A9C1BB;}
.footer-col a:hover{color:var(--accent-100);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA8A1;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 22px;}
  .search-box{width:190px;}
  .page-hero h1{font-size:42px;}
}
@media (max-width:1023px){
  :root{--sp-section:72px;}
  .main-nav{display:none;}
  .search-box{display:none;}
  .hamburger{display:inline-flex;}
  .header-inner{gap:16px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-media img{height:300px;}
  .hero-float{position:static;margin-top:20px;width:100%;}
  .metric-list{grid-template-columns:repeat(2,1fr);}
  .section-split{grid-template-columns:1fr;gap:32px;}
  .timeline{grid-template-columns:repeat(2,1fr);gap:28px;}
  .timeline::before{display:none;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--sp-section:48px;}
  body{font-size:15px;}
  .container{padding:0 16px;}
  .page-hero{padding:44px 0 40px;}
  .page-hero h1{font-size:31px;}
  .hero-sub{font-size:16px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .hero-cta .btn{width:100%;}
  .metric-list{grid-template-columns:1fr;gap:18px;}
  .content-grid{grid-template-columns:1fr;gap:20px;}
  .card-media img{height:188px;}
  .timeline{grid-template-columns:1fr;}
  .pager a,.pager span{min-width:38px;height:38px;padding:0 10px;font-size:13.5px;}
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:400px){
  .page-hero h1{font-size:28px;}
  .brand-text{font-size:17px;}
  .filter-chip{height:34px;padding:0 14px;font-size:13px;}
}

/* roulang page: category4 */
:root{
  --brand-900:#0B3B34;
  --brand-700:#0F6B5C;
  --brand-500:#17907C;
  --brand-100:#E4F0EC;
  --accent-600:#C2591F;
  --accent-500:#E0662F;
  --accent-100:#FBE9DD;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#F1EFE8;
  --ink:#12221F;
  --ink-2:#3C4B47;
  --muted:#5C6B66;
  --line:#E3E1DA;
  --ok:#2E8C74;
  --warn:#C99A2E;
  --err:#C0392B;
  --l1:#8FA8A1;
  --l2:#2E8C74;
  --l3:#0B5248;
  --l4:#C2591F;
  --shadow-1:0 1px 2px rgba(18,34,31,.06),0 8px 24px -12px rgba(18,34,31,.14);
  --shadow-2:0 12px 32px -14px rgba(18,34,31,.22);
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sec-desktop:96px;
  --sec-tablet:72px;
  --sec-mobile:48px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--brand-900)}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink)}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
h1{font-size:46px;line-height:1.22;font-weight:700}
h2{font-size:31px;line-height:1.32;font-weight:600}
h3{font-size:21px;line-height:1.44;font-weight:600}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:var(--r-xs)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--brand-900);flex:0 0 auto}
.brand:hover{color:var(--brand-900)}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--brand-100);color:var(--brand-700)}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.01em}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:var(--r-pill);
  color:var(--ink-2);font-size:15px;white-space:nowrap;
}
.nav-link:hover{background:var(--brand-100);color:var(--brand-700)}
.nav-link.active{color:var(--brand-700);background:var(--brand-100);font-weight:600}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:224px;
  padding:0 14px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--muted);
}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink)}
.search-box input::placeholder{color:var(--muted)}
.search-box:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(23,144,124,.28);background:var(--surface)}
.nav-toggle{
  display:none;width:44px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);cursor:pointer;align-items:center;justify-content:center
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-2)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--surface);padding:12px 0 20px}
.mobile-drawer.is-open{display:block}
.drawer-link{display:flex;align-items:center;height:48px;padding:0 24px;color:var(--ink-2);font-size:16px;border-radius:0}
.drawer-link:hover,.drawer-link.active{background:var(--brand-100);color:var(--brand-700)}
.drawer-search{margin:8px 24px 12px;width:auto}
.drawer-cta{margin:0 24px;width:calc(100% - 48px);justify-content:center}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background-color .16s ease,color .16s ease,transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:0 8px 20px -12px rgba(224,102,47,.9)}
.btn-accent:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px)}
.btn-accent:active{transform:translateY(0);background:var(--accent-600)}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-900)}
.btn-ghost{color:var(--brand-700);background:transparent;padding:0 6px;height:auto}
.btn-ghost:hover{color:var(--brand-900);text-decoration:underline}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn.is-loading{pointer-events:none}
.spinner{display:none;width:15px;height:15px;border:2px solid rgba(255,255,255,.5);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
.btn.is-loading .spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ page hero ============ */
.page-hero{
  position:relative;
  background-image:linear-gradient(100deg,rgba(247,245,240,.96) 0%,rgba(247,245,240,.86) 46%,rgba(255,255,255,.6) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--line);
  padding:64px 0 56px;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand-700)}
.crumbs .sep{color:#b9b6ac}
.page-hero h1{max-width:760px}
.hero-sub{margin-top:16px;max-width:640px;color:var(--ink-2);font-size:17px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);font-size:13px;
}
.tag-accent{background:var(--accent-100);border-color:#f3d5c2;color:var(--accent-600)}

/* ============ sections ============ */
.section{padding:var(--sec-desktop) 0}
.section-tight{padding:56px 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head p{margin-top:12px;color:var(--muted)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-700);
  font-weight:600;letter-spacing:.04em;margin-bottom:12px;
}
.eyebrow::before{content:"";width:14px;height:2px;background:var(--brand-500);border-radius:2px}

/* ============ help layout ============ */
.help-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;align-items:start}
.rail{position:sticky;top:92px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-1)}
.rail h3{font-size:16px;margin-bottom:14px}
.rail-list li+li{margin-top:4px}
.rail-list a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--r-sm);
  color:var(--ink-2);font-size:15px;
}
.rail-list a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--l1);flex:0 0 auto;transition:background-color .16s ease}
.rail-list a:hover{background:var(--brand-100);color:var(--brand-900)}
.rail-list a:hover::before{background:var(--brand-500)}
.rail-list a.is-current{background:var(--brand-100);color:var(--brand-900);font-weight:600}
.rail-list a.is-current::before{background:var(--accent-500)}
.rail-note{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.7}
.rail-note a{display:inline-block;margin-top:6px;font-weight:600}

.faq-group{margin-bottom:40px}
.faq-group:last-child{margin-bottom:0}
.faq-group-head{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.faq-group-head h3{font-size:20px}
.group-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--ink-2);font-size:12px;font-weight:600;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;
  min-height:56px;padding:14px 0;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px;border-radius:50%;background:var(--brand-100)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-700);border-radius:2px;transform:translate(-50%,-50%);transition:transform .2s ease,opacity .2s ease}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-q[aria-expanded="true"]{color:var(--brand-900)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a-inner{padding:0 0 20px;color:var(--ink-2);font-size:15.5px;line-height:1.85;max-width:720px}
.faq-a-inner ul{margin-top:10px}
.faq-a-inner li{position:relative;padding-left:18px;margin-bottom:6px}
.faq-a-inner li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand-500)}

/* ============ contact ============ */
.contact-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:32px;align-items:start}
.form-card,.info-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1)}
.form-card{padding:32px}
.info-card{overflow:hidden;display:flex;flex-direction:column}
.info-card figure{margin:0}
.info-card img{width:100%;height:180px;object-fit:cover}
.info-card-body{padding:26px 28px 30px}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.control{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);outline:none;transition:border-color .16s ease,box-shadow .16s ease;
}
textarea.control{height:auto;min-height:132px;padding:12px 14px;line-height:1.7;resize:vertical}
select.control{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.control::placeholder{color:var(--muted)}
.control:focus{border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(23,144,124,.28)}
.control.has-error{border-color:var(--err);box-shadow:0 0 0 2px rgba(192,57,43,.18)}
.err-msg{display:none;margin-top:6px;font-size:12.5px;color:var(--err)}
.err-msg.is-shown{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);line-height:1.7}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand-500);flex:0 0 auto}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:4px}
.form-hint{font-size:13px;color:var(--muted)}
.form-success{
  display:none;align-items:flex-start;gap:12px;margin-bottom:22px;padding:16px 18px;
  background:#EAF5F1;border:1px solid #c8e3da;border-radius:var(--r-md);color:var(--brand-900);font-size:14.5px;
}
.form-success.is-shown{display:flex}
.form-success .dot{width:10px;height:10px;border-radius:50%;background:var(--ok);margin-top:8px;flex:0 0 auto}
.info-card h3{margin-bottom:10px}
.info-list{margin-top:18px}
.info-list li{display:flex;gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:14.5px;color:var(--ink-2)}
.info-list li strong{flex:0 0 78px;color:var(--ink);font-weight:600}
.tier-line{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tier-chip{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);font-size:12.5px;color:#fff;font-weight:600}
.tier-chip.l1{background:var(--l1)}
.tier-chip.l2{background:var(--l2)}
.tier-chip.l3{background:var(--l3)}
.tier-chip.l4{background:linear-gradient(90deg,var(--l4),#14231F)}

/* ============ stats strip ============ */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 32px;box-shadow:var(--shadow-1);
}
.stat-value{font-size:28px;font-weight:700;color:var(--brand-900);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--muted)}

/* ============ cta ============ */
.cta-band{
  background:linear-gradient(180deg,#FFFDFA,#F7F1E9);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-inner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center}
.cta-inner h2{max-width:560px}
.cta-inner p{margin-top:12px;color:var(--ink-2);max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ footer ============ */
.site-footer{background:var(--brand-900);color:#D9E6E2;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.site-footer .brand{color:#fff}
.site-footer .brand-mark{background:rgba(255,255,255,.1);color:#9FD6C8}
.footer-desc{margin-top:16px;font-size:14px;color:#A9C2BC;max-width:320px;line-height:1.8}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:#A9C2BC}
.footer-col ul li a{color:#A9C2BC}
.footer-col ul li a:hover{color:var(--accent-100)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:#8FA8A1;
}

/* ============ responsive ============ */
@media (max-width:1279px){
  h1{font-size:42px}
  .help-layout{gap:36px}
}
@media (max-width:1023px){
  .main-nav,.header-actions .search-box,.header-actions .btn-accent{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{gap:16px}
  h1{font-size:36px}
  h2{font-size:27px}
  .section{padding:var(--sec-tablet) 0}
  .help-layout{grid-template-columns:1fr;gap:28px}
  .rail{position:static}
  .contact-layout{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr);padding:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr}
}
@media (max-width:767px){
  .container{padding:0 16px}
  h1{font-size:31px}
  h2{font-size:24px}
  h3{font-size:19px}
  body{font-size:15px;line-height:1.8}
  .section{padding:var(--sec-mobile) 0}
  .section-tight{padding:40px 0}
  .page-hero{padding:40px 0 36px;background-position:center}
  .hero-sub{font-size:15.5px}
  .btn{width:100%;justify-content:center}
  .cta-actions{flex-direction:column;width:100%}
  .form-actions .btn{width:100%}
  .form-card{padding:24px 20px}
  .info-card-body{padding:22px 20px 26px}
  .faq-q{font-size:15.5px}
  .stats{grid-template-columns:1fr 1fr;gap:18px;padding:20px}
  .stat-value{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:400px){
  h1{font-size:27px}
  .stats{grid-template-columns:1fr}
  .brand-text{font-size:17px}
}