/* roulang page: index */
:root{
  --blue-50:#EEF4FF;--blue-100:#DCE7FF;--blue-300:#9CB8F5;--blue-500:#2E6BE6;--blue-600:#1A57CC;--blue-700:#144399;--blue-900:#0E2E6B;
  --amber:#F08A24;--amber-600:#D9760F;--amber-soft:#FFF3E4;--amber-ink:#3A2405;
  --teal:#12A594;--teal-soft:#E6F7F4;--rose:#D4685E;--rose-soft:#FCEDEB;
  --bg:#F5F8FD;--bg-alt:#EDF3FC;--card:#FFFFFF;--line:#E2EAF6;--line-strong:#CFDCF0;
  --ink:#101B2E;--ink-2:#55688A;--ink-3:#8695AE;
  --r-lg:16px;--r-md:14px;--r-sm:12px;--r-btn:10px;--r-pill:999px;
  --sh1:0 1px 2px rgba(16,42,80,.05),0 1px 3px rgba(16,42,80,.04);
  --sh2:0 8px 24px -10px rgba(16,42,80,.14),0 2px 6px rgba(16,42,80,.05);
  --sh3:0 16px 36px -14px rgba(16,42,80,.22);
  --gap-section:96px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,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:1.75;color:var(--ink);background:var(--bg);font-weight:400}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;background:var(--bg-alt)}
a{color:var(--blue-600);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--blue-700)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:3px solid rgba(46,107,230,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--gap-section) 0}
.section--alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-title{position:relative;font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.01em;padding-left:16px}
.section-title::before{content:"";position:absolute;left:0;top:6px;width:3px;height:18px;background:var(--blue-500);border-radius:2px}
.section-sub{font-size:14px;color:var(--ink-2);margin-top:8px;padding-left:16px;max-width:620px}
.link-more{font-size:14px;color:var(--blue-600);display:inline-flex;align-items:center;gap:6px;font-weight:600}
.link-more:hover{text-decoration:underline}
.link-arrow{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-arrow::after{content:"→";transition:transform .18s ease-out}
.link-arrow:hover::after{transform:translateX(3px)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.08em;color:var(--blue-700);background:var(--blue-50);border:1px solid var(--blue-100);padding:6px 14px;border-radius:var(--r-pill);font-weight:600}
.badge{display:inline-block;font-size:12.5px;line-height:1.6;padding:3px 12px;border-radius:var(--r-pill);background:var(--blue-50);color:var(--blue-700);font-weight:600}
.badge--amber{background:var(--amber-soft);color:var(--amber-ink)}
.badge--teal{background:var(--teal-soft);color:#0C7A6D}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;min-width:44px}
.btn--primary{background:var(--blue-500);color:#fff;box-shadow:var(--sh1)}
.btn--primary:hover{background:var(--blue-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh1)}
.btn--ghost{background:#fff;color:var(--blue-600);border:1px solid var(--line-strong)}
.btn--ghost:hover{background:var(--blue-50);color:var(--blue-700);border-color:var(--blue-300)}
.btn--ghost:active{background:var(--blue-100)}
.btn--amber{background:var(--amber);color:var(--amber-ink);box-shadow:var(--sh1)}
.btn--amber:hover{background:var(--amber-600);color:var(--amber-ink);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn--amber:active{transform:translateY(0)}
.btn[disabled],.btn.is-loading{opacity:.62;cursor:not-allowed;transform:none!important;box-shadow:none}
.btn--block{width:100%}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:saturate(160%) blur(6px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand__mark{width:38px;height:38px;border-radius:12px;background:var(--blue-500);display:flex;align-items:center;justify-content:center;color:#fff;flex:0 0 auto;box-shadow:var(--sh1)}
.brand__text{display:flex;flex-direction:column;line-height:1.25}
.brand__text strong{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.brand__text em{font-style:normal;font-size:12.5px;color:var(--ink-3);letter-spacing:.04em}
.main-nav{display:flex;align-items:center}
.main-nav>ul{display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-item>a,.nav-item>button{display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:8px;font-size:15px;color:var(--ink-2);font-weight:500;transition:color .18s ease-out,background-color .18s ease-out}
.nav-item>a:hover,.nav-item>button:hover{color:var(--ink);background:var(--blue-50)}
.nav-item.is-active>a{color:var(--ink);font-weight:700;background:var(--blue-50)}
.nav-item.is-active>a::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--blue-500);border-radius:2px}
.nav-item>button .caret{transition:transform .18s ease-out}
.nav-item:hover>button .caret,.nav-item.is-open>button .caret{transform:rotate(180deg)}
.header-cta{display:flex;align-items:center;gap:12px}
.header-cta .btn{height:42px;padding:0 20px;font-size:14px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line-strong);align-items:center;justify-content:center;color:var(--ink)}
.nav-toggle:hover{background:var(--blue-50);border-color:var(--blue-300)}

/* Mega 面板 */
.mega-panel{position:absolute;top:calc(100% + 12px);left:50%;width:880px;max-width:calc(100vw - 48px);transform:translate(-50%,8px);background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh2);padding:26px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s ease-out,transform .18s ease-out,visibility .18s ease-out}
.nav-item:hover .mega-panel,.nav-item:focus-within .mega-panel,.nav-item.is-open .mega-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.mega-grid{display:grid;grid-template-columns:1.1fr 1fr .9fr;gap:28px}
.mega-col h4{font-size:12.5px;letter-spacing:.1em;color:var(--ink-3);font-weight:700;margin-bottom:14px}
.mega-col ul li+li{margin-top:4px}
.mega-col ul a{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);padding:6px 8px;border-radius:8px;transition:color .18s ease-out,background-color .18s ease-out,transform .18s ease-out}
.mega-col ul a:hover{color:var(--blue-600);background:var(--blue-50);transform:translateX(2px)}
.mega-promo{background:var(--blue-50);border:1px solid var(--blue-100);border-radius:var(--r-sm);padding:18px;display:flex;flex-direction:column;gap:10px}
.mega-promo strong{font-size:15px;color:var(--ink)}
.mega-promo p{font-size:13px;color:var(--ink-2);line-height:1.7}

/* 移动抽屉 */
.mobile-drawer{position:fixed;inset:0;background:#fff;z-index:80;transform:translateX(100%);transition:transform .24s ease-out;overflow-y:auto;padding:20px 24px 40px;display:none}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;color:var(--ink)}
.drawer-close:hover{background:var(--blue-50)}
.drawer-links a{display:block;padding:14px 4px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);font-weight:500}
.drawer-links a:hover{color:var(--blue-600)}
.drawer-links a.is-active{color:var(--blue-700);font-weight:700}
.drawer-cta{margin-top:24px}

/* Hero */
.hero{position:relative;overflow:hidden;background:#fff;padding:96px 0}
.hero::before{content:"";position:absolute;top:-80px;right:-160px;width:680px;height:680px;background:linear-gradient(180deg,var(--blue-50),rgba(238,244,255,0));border-radius:50%;z-index:0}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;opacity:.35;mask-image:linear-gradient(90deg,rgba(0,0,0,.5),transparent 70%);z-index:0;pointer-events:none}
.hero__grid{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero__copy h1{font-size:40px;line-height:1.3;font-weight:700;letter-spacing:-.02em;margin:20px 0 18px}
.hero__lead{font-size:16px;color:var(--ink-2);max-width:38ch;line-height:1.75}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 26px}
.hero__trust{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;border-top:1px solid var(--line);padding-top:22px}
.hero__trust li{font-size:13px;color:var(--ink-2);line-height:1.6}
.hero__trust strong{display:block;font-size:18px;color:var(--ink);font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.hero__media{position:relative}
.hero__media img{width:100%;aspect-ratio:21/9;min-height:280px;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh2)}
.float-card{position:absolute;left:-28px;bottom:-30px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);box-shadow:var(--sh3);padding:18px 20px;min-width:216px}
.float-card span{display:block;font-size:12.5px;color:var(--ink-3);letter-spacing:.06em}
.float-card strong{display:block;font-size:26px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--blue-700);margin-top:2px}
.float-card em{font-style:normal;display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:#0C7A6D;background:var(--teal-soft);border-radius:var(--r-pill);padding:2px 10px;margin-top:8px}

/* 指标看板 */
.metric-board{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);overflow:hidden;transition:box-shadow .18s ease-out,border-color .18s ease-out,transform .18s ease-out}
.metric-card:hover{box-shadow:var(--sh2);border-color:var(--blue-300);transform:translateY(-2px)}
.metric-card__num{background:var(--blue-50);padding:20px 24px 16px;display:flex;align-items:baseline;gap:6px}
.metric-card__num strong{font-size:34px;font-weight:700;letter-spacing:-.02em;color:var(--blue-700);font-variant-numeric:tabular-nums;line-height:1}
.metric-card__num span{font-size:14px;color:var(--blue-600);font-weight:600}
.metric-card__body{padding:16px 24px 22px}
.metric-card__body h3{font-size:15px;font-weight:600;margin-bottom:6px}
.metric-card__body p{font-size:13px;color:var(--ink-2);line-height:1.7}
.trend{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;font-weight:600;padding:2px 10px;border-radius:var(--r-pill);margin-top:10px}
.trend--up{background:var(--teal-soft);color:#0C7A6D}
.trend--flat{background:var(--amber-soft);color:var(--amber-ink)}

/* 服务矩阵 */
.service-matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .18s ease-out,border-color .18s ease-out,transform .18s ease-out}
.svc-card:hover{box-shadow:var(--sh3);border-color:var(--blue-300);transform:translateY(-2px)}
.svc-card--wide{grid-column:span 2;flex-direction:row}
.svc-card--wide .svc-card__img{width:46%;aspect-ratio:3/2;object-fit:cover;height:100%}
.svc-card--wide .svc-card__body{padding:28px}
.svc-card__body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.svc-card__idx{width:40px;height:40px;border-radius:12px;background:var(--blue-50);color:var(--blue-600);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;letter-spacing:.02em;font-variant-numeric:tabular-nums}
.svc-card h3{font-size:19px;font-weight:600;line-height:1.4}
.svc-card p{font-size:14px;color:var(--ink-2);line-height:1.75}
.svc-card .link-arrow{margin-top:auto;padding-top:6px}

/* 结果对比 */
.compare-block{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:28px}
.compare-col h3{font-size:20px;font-weight:600;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.compare-col ul li{position:relative;padding-left:22px;font-size:14.5px;color:var(--ink-2);line-height:1.8;padding-top:9px;padding-bottom:9px;border-top:1px solid var(--line)}
.compare-col ul li:first-child{border-top:none;padding-top:0}
.compare-col ul li::before{content:"";position:absolute;left:0;top:19px;width:8px;height:8px;border-radius:50%}
.compare-col--before ul li::before{background:var(--rose)}
.compare-col--before h3{color:var(--ink)}
.compare-col--after{background:#fff;border-color:var(--blue-300);box-shadow:var(--sh2)}
.compare-col--after ul li::before{background:var(--teal)}
.compare-col--after ul li:first-child::before{top:10px}
.compare-cta{margin-top:32px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.compare-cta p{font-size:14px;color:var(--ink-2)}

/* 信息动态 */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .18s ease-out,border-color .18s ease-out,transform .18s ease-out}
.news-card:hover{box-shadow:var(--sh3);border-color:var(--blue-300);transform:translateY(-2px)}
.news-card__media{display:block;background:var(--bg-alt)}
.news-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-card__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card h3 a{color:var(--ink)}
.news-card h3 a:hover{color:var(--blue-600)}
.news-card__excerpt{font-size:14px;color:var(--ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card__foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-3)}
.news-empty{grid-column:1/-1;min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-lg);text-align:center;padding:40px 24px}
.news-empty p{font-size:14px;color:var(--ink-2)}

/* FAQ */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);overflow:hidden}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-item h3{margin:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;padding:22px 26px;font-size:17px;font-weight:600;color:var(--ink);transition:background-color .18s ease-out}
.faq-q:hover{background:var(--blue-50)}
.faq-q .sign{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--blue-50);color:var(--blue-600);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;transition:transform .2s ease-out,background-color .2s ease-out}
.faq-item.is-open .faq-q .sign{background:var(--blue-500);color:#fff;transform:rotate(45deg)}
.faq-a{display:none;padding:0 26px 24px;font-size:14.5px;color:var(--ink-2);line-height:1.75;max-width:76ch}
.faq-item.is-open .faq-a{display:block}

/* 转化表单 */
.cta-form{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start}
.cta-form__intro h2{font-size:28px;font-weight:700;line-height:1.3;letter-spacing:-.01em;margin-bottom:16px}
.cta-form__intro p{font-size:15px;color:var(--ink-2);line-height:1.8;max-width:42ch}
.cta-points{margin-top:26px;display:grid;gap:14px}
.cta-points li{display:flex;gap:12px;font-size:14.5px;color:var(--ink-2);line-height:1.7}
.cta-points .dot{flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--blue-50);color:var(--blue-600);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;margin-top:3px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh2);padding:28px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;height:48px;border:1px solid var(--line-strong);border-radius:var(--r-btn);padding:0 14px;font-size:15px;background:#fff;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.field textarea{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--blue-300)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px rgba(46,107,230,.35)}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--rose);box-shadow:0 0 0 3px rgba(212,104,94,.18)}
.field .hint{display:none;font-size:12.5px;color:var(--rose);margin-top:6px}
.field.has-error .hint{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--ink-2);line-height:1.7;margin-bottom:20px}
.check-row input{width:18px;height:18px;margin-top:3px;flex:0 0 auto;accent-color:var(--blue-500)}
.check-row.has-error{color:var(--rose)}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:14px;text-align:center}
.form-success{display:none;text-align:center;padding:18px 6px}
.form-success__icon{width:56px;height:56px;border-radius:50%;background:var(--teal-soft);color:var(--teal);display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.form-success h3{font-size:20px;font-weight:600;margin-bottom:10px}
.form-success p{font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:20px}
.spinner{width:16px;height:16px;border:2px solid rgba(58,36,5,.3);border-top-color:var(--amber-ink);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.is-hidden{display:none!important}

/* 页脚 */
.site-footer{background:var(--blue-900);color:rgba(255,255,255,.72);border-top:1px solid rgba(255,255,255,.18);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;margin-bottom:16px}
.footer-brand__mark{width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center}
.footer-brand strong{font-size:16px;font-weight:700}
.site-footer p{font-size:13.5px;line-height:1.8}
.site-footer h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px}
.site-footer ul li+li{margin-top:10px}
.site-footer ul a{font-size:13.5px;color:rgba(255,255,255,.72)}
.site-footer ul a:hover{color:#fff;text-decoration:underline}
.footer-contact li{font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.8}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.6)}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}

/* 响应式 */
@media (max-width:1279px){
  .hero__grid{grid-template-columns:6fr 5fr;gap:40px}
  .hero__copy h1{font-size:36px}
  .mega-panel{width:760px}
}
@media (max-width:1023px){
  :root{--gap-section:72px}
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .mobile-drawer{display:block}
  .header-cta .btn{display:none}
  .hero{padding:64px 0}
  .hero__grid{grid-template-columns:1fr;gap:40px}
  .hero__copy h1{font-size:32px}
  .hero__media img{aspect-ratio:16/9}
  .float-card{left:16px;bottom:-24px}
  .metric-board{grid-template-columns:repeat(2,1fr)}
  .service-matrix{grid-template-columns:repeat(2,1fr)}
  .svc-card--wide{grid-column:span 2;flex-direction:column}
  .svc-card--wide .svc-card__img{width:100%;height:auto;aspect-ratio:3/2}
  .news-list{grid-template-columns:repeat(2,1fr)}
  .compare-block{grid-template-columns:1fr}
  .cta-form{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--gap-section:56px}
  .container{padding:0 20px}
  .header-inner{height:60px}
  .brand__text strong{font-size:15px}
  .brand__text em{display:none}
  .hero{padding:56px 0}
  .hero__copy h1{font-size:30px}
  .hero__trust{grid-template-columns:repeat(2,1fr);gap:14px}
  .section-title{font-size:22px}
  .section-head{margin-bottom:28px}
  .news-list{grid-template-columns:1fr}
  .service-matrix{grid-template-columns:1fr}
  .svc-card--wide{grid-column:span 1}
  .svc-card--wide .svc-card__body{padding:22px}
  .compare-col{padding:22px}
  .faq-q{padding:18px 20px;font-size:16px}
  .faq-a{padding:0 20px 20px}
  .form-card{padding:22px}
  .cta-form__intro h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding-top:48px}
}
@media (max-width:519px){
  .hero__actions .btn{width:100%}
  .metric-board{grid-template-columns:1fr}
  .float-card{position:static;margin-top:16px;left:auto;bottom:auto}
  .cta-form .btn--block{max-width:360px;margin:0 auto;display:flex}
  .compare-cta .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --brand-50:#EEF4FF;
  --brand-100:#DCE7FF;
  --brand-300:#9CB8F5;
  --brand-500:#2E6BE6;
  --brand-600:#1A57CC;
  --brand-700:#144399;
  --brand-900:#0E2E6B;
  --amber:#F08A24;
  --amber-50:#FFF3E4;
  --amber-ink:#3A2405;
  --green:#12A594;
  --red:#D4685E;
  --bg:#F5F8FD;
  --bg-alt:#EDF3FC;
  --card:#FFFFFF;
  --border:#E2EAF6;
  --border-strong:#CFDCF0;
  --ink:#101B2E;
  --ink-2:#55688A;
  --ink-3:#8695AE;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --sh1:0 1px 2px rgba(16,42,80,.05),0 1px 3px rgba(16,42,80,.04);
  --sh2:0 8px 24px -10px rgba(16,42,80,.14),0 2px 6px rgba(16,42,80,.05);
  --sh3:0 16px 36px -14px rgba(16,42,80,.22);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,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:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-700)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:3px solid rgba(46,107,230,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand__mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:linear-gradient(150deg,var(--brand-500),var(--brand-700));
  color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh1);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__text strong{font-size:15.5px;font-weight:700;letter-spacing:.01em}
.brand__text em{font-style:normal;font-size:12px;color:var(--ink-3);letter-spacing:.06em;margin-top:2px}
.main-nav ul{display:flex;align-items:center;gap:2px;list-style:none}
.nav-item{position:relative}
.nav-item>a,.nav-item>button{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 12px;border-radius:8px;
  font-size:14.5px;color:var(--ink-2);
  position:relative;transition:color .18s ease-out,background .18s ease-out;
}
.nav-item>a::after,.nav-item>button::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--brand-500);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-item>a:hover,.nav-item>button:hover{color:var(--ink);background:var(--brand-50)}
.nav-item>a:hover::after,.nav-item>button:hover::after,
.nav-item.is-active>a::after,.nav-item.is-open>button::after{transform:scaleX(1)}
.nav-item.is-active>a{color:var(--brand-700);background:var(--brand-50);font-weight:600}
.caret{transition:transform .2s ease-out}
.nav-item.is-open .caret{transform:rotate(180deg)}
.header-actions{display:flex;align-items:center;gap:12px}
.hamburger{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--border-strong);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Mega 面板 */
.mega-panel{
  position:absolute;top:calc(100% + 14px);left:50%;transform:translateX(-50%) translateY(-6px);
  width:660px;background:#fff;border:1px solid var(--border);border-radius:16px;
  box-shadow:var(--sh2);padding:22px;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .18s ease-out,transform .18s ease-out,visibility .18s;
}
.nav-item.is-open .mega-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.mega-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.mega-col h4{font-size:12.5px;font-weight:600;color:var(--ink-3);letter-spacing:.1em;margin-bottom:10px}
.mega-col ul{list-style:none}
.mega-col ul li a{
  display:block;padding:7px 9px;border-radius:8px;
  font-size:14px;color:var(--ink-2);transition:transform .18s ease-out,color .18s ease-out,background .18s ease-out;
}
.mega-col ul li a:hover{color:var(--brand-600);background:var(--brand-50);transform:translateX(2px)}

/* 移动抽屉 */
.mobile-drawer{display:none}
.nav-locked{overflow:hidden}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.btn--primary{background:var(--brand-500);color:#fff;box-shadow:var(--sh1)}
.btn--primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh1)}
.btn--ghost{background:#fff;color:var(--brand-600);border-color:var(--border-strong)}
.btn--ghost:hover{background:var(--brand-50);color:var(--brand-700);border-color:var(--brand-300)}
.btn--amber{background:var(--amber);color:var(--amber-ink);box-shadow:var(--sh1)}
.btn--amber:hover{background:#DE7A16;color:var(--amber-ink);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn--amber:active{transform:translateY(0)}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-loading{opacity:.62;cursor:not-allowed;transform:none;box-shadow:none}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge--brand{background:var(--brand-50);color:var(--brand-700);border:1px solid var(--brand-100)}
.badge--amber{background:var(--amber-50);color:var(--amber-ink);border:1px solid #F7DDBB}
.badge--green{background:#E7F7F4;color:#0B7C6F;border:1px solid #C8EDE7}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600)}
.link-arrow:hover{text-decoration:underline;color:var(--brand-700)}

/* ============ 文章头部 ============ */
.page-hero{
  background:#fff;
  border-bottom:1px solid var(--border);
  padding:34px 0 40px;
  position:relative;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;top:-60px;right:-80px;width:420px;height:280px;
  background:radial-gradient(circle at 70% 30%,rgba(46,107,230,.09),rgba(46,107,230,0) 70%);
  pointer-events:none;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);flex-wrap:wrap}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand-600);text-decoration:underline}
.breadcrumb .current{color:var(--ink);font-weight:500;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{margin-top:20px;max-width:820px;position:relative;z-index:1}
.article-head__meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:16px}
.article-head h1{
  font-size:40px;font-weight:700;letter-spacing:-.02em;line-height:1.28;
  padding-left:16px;border-left:4px solid var(--brand-500);
}
.article-head__sub{margin-top:16px;color:var(--ink-2);font-size:15px;display:flex;flex-wrap:wrap;gap:18px}
.article-head__sub span{display:inline-flex;align-items:center;gap:7px}
.article-head__sub svg{color:var(--brand-300)}

/* ============ 正文布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:44px;align-items:start;
  padding:56px 0 72px;
}
.article-body{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:40px 44px;box-shadow:var(--sh1);
  max-width:860px;font-size:16.5px;line-height:1.85;color:var(--ink);
  overflow-wrap:break-word;
}
.article-body h2{
  font-size:24px;margin:42px 0 16px;padding-left:14px;
  border-left:3px solid var(--brand-500);line-height:1.4;
}
.article-body h2:first-child{margin-top:0}
.article-body h3{
  font-size:19px;font-weight:600;margin:32px 0 12px;
  padding-bottom:9px;border-bottom:1px solid var(--border);
}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--brand-700)}
.article-body p{margin:0 0 1.15em}
.article-body ul,.article-body ol{padding-left:1.5em;margin:0 0 1.2em}
.article-body li{margin-bottom:.45em}
.article-body ul li::marker{color:var(--brand-500)}
.article-body ol li::marker{color:var(--brand-600);font-weight:600}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;background:var(--brand-50);
  border-left:3px solid var(--brand-500);border-radius:0 12px 12px 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:26px auto;box-shadow:var(--sh1)}
.article-body figure{margin:26px 0}
.article-body figure img{margin:0}
.article-body figcaption{font-size:13.5px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-700)}
.article-body hr{border:0;border-top:1px dashed var(--border-strong);margin:38px 0}
.article-body table{
  display:block;width:100%;max-width:100%;overflow-x:auto;
  border-collapse:collapse;font-size:14.5px;margin:24px 0;
}
.article-body th,.article-body td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.article-body th{background:var(--bg-alt);font-weight:600;color:var(--brand-700)}
.article-body code{background:var(--bg-alt);padding:2px 6px;border-radius:6px;font-size:14px;color:var(--brand-700)}

.article-empty{
  text-align:center;padding:56px 20px;color:var(--ink-2);
}
.article-empty svg{color:var(--brand-300);margin-bottom:16px}
.article-empty h2{font-size:22px;color:var(--ink);border:0;padding:0;margin:0 0 10px}
.article-empty p{margin-bottom:22px;font-size:15px}

/* 侧栏 */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.aside-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh1);
}
.aside-card h3{
  font-size:15px;font-weight:700;margin:0 0 14px;
  padding-left:10px;border-left:3px solid var(--brand-500);line-height:1.2;
}
.aside-nav{list-style:none}
.aside-nav li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 0;font-size:14px;color:var(--ink-2);
  border-bottom:1px dashed var(--border);
  transition:color .18s ease-out,transform .18s ease-out;
}
.aside-nav li:last-child a{border-bottom:0}
.aside-nav li a:hover{color:var(--brand-600);transform:translateX(2px)}
.aside-nav li a svg{flex:0 0 auto;color:var(--brand-300)}
.aside-info{list-style:none;font-size:14px;color:var(--ink-2)}
.aside-info li{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px dashed var(--border)}
.aside-info li:last-child{border-bottom:0}
.aside-info li span:first-child{color:var(--ink-3)}
.aside-card--cta{background:var(--brand-900);border-color:var(--brand-900);color:#fff}
.aside-card--cta h3{color:#fff;border-left-color:var(--amber)}
.aside-card--cta p{font-size:14px;color:rgba(255,255,255,.76);margin-bottom:16px}
.aside-card--cta .btn{width:100%}

/* ============ 相关栏目 ============ */
.section{padding:76px 0}
.section--alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{
  font-size:28px;padding-left:14px;border-left:3px solid var(--brand-500);line-height:1.2;
}
.section-head p{margin-top:10px;color:var(--ink-2);font-size:15px;max-width:640px}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh3);border-color:var(--brand-300)}
.rel-card__media{aspect-ratio:16/9;background:var(--bg-alt);overflow:hidden}
.rel-card__media img{width:100%;height:100%;object-fit:cover}
.rel-card__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card__body h3{font-size:17px;font-weight:700;line-height:1.45}
.rel-card__body p{font-size:14px;color:var(--ink-2);line-height:1.7}
.rel-card__foot{margin-top:auto;padding-top:8px}

/* ============ FAQ ============ */
.faq-list{max-width:900px}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-700)}
.faq-item summary .plus{
  flex:0 0 28px;width:28px;height:28px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;transition:transform .2s ease-out,background .2s ease-out;
}
.faq-item[open] summary .plus{transform:rotate(45deg);background:var(--brand-100)}
.faq-item .faq-answer{padding:0 0 22px;color:var(--ink-2);font-size:15px;max-width:760px;line-height:1.8}

/* ============ CTA 表单 ============ */
.cta-block{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:40px;align-items:start;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:44px;box-shadow:var(--sh2);
}
.cta-intro h2{font-size:28px;padding-left:14px;border-left:3px solid var(--brand-500);margin-bottom:16px}
.cta-intro p{color:var(--ink-2);font-size:15px;margin-bottom:20px;max-width:560px}
.cta-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.cta-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2)}
.cta-list li svg{flex:0 0 auto;color:var(--green);margin-top:5px}
.cta-form{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--r-sm);
  padding:26px 24px;
}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink)}
.field .req{color:var(--red)}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:10px 14px;
  font-family:inherit;font-size:15px;color:var(--ink);
  background:#fff;border:1px solid var(--border-strong);border-radius:var(--r-btn);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2355688A' stroke-width='2.4' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(46,107,230,.18);
}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--red);box-shadow:0 0 0 3px rgba(212,104,94,.14)}
.field .err{display:none;margin-top:6px;font-size:12.5px;color:#B4463C}
.field.has-error .err{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--ink-2);margin-bottom:18px}
.check-row input{width:18px;height:18px;min-height:18px;margin-top:3px;accent-color:var(--brand-500)}
.cta-form .btn{width:100%}
.form-success{
  display:none;text-align:center;padding:26px 16px;
  background:#E7F7F4;border:1px solid #C8EDE7;border-radius:var(--r-sm);color:#0B6E62;
}
.form-success h3{font-size:18px;color:#0B6E62;margin-bottom:10px}
.form-success p{font-size:14px;margin-bottom:18px}
.form-success.is-visible{display:block}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);color:rgba(255,255,255,.72);
  border-top:1px solid rgba(255,255,255,.14);
  padding:60px 0 0;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:34px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand__mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;
}
.footer-brand strong{color:#fff;font-size:15.5px}
.site-footer p{font-size:14px;line-height:1.8;max-width:340px}
.site-footer h4{color:#fff;font-size:14px;font-weight:600;letter-spacing:.06em;margin-bottom:16px}
.site-footer ul{list-style:none}
.site-footer ul li{margin-bottom:10px;font-size:14px}
.site-footer ul li a{color:rgba(255,255,255,.72)}
.site-footer ul li a:hover{color:#fff;text-decoration:underline}
.footer-contact li{color:rgba(255,255,255,.72)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;
  gap:14px;font-size:13px;color:rgba(255,255,255,.6);flex-wrap:wrap;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px}
  .article-body{padding:34px 32px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .hamburger{display:inline-flex}
  .header-actions .btn{display:none}
  .mobile-drawer{
    display:block;position:fixed;left:0;right:0;top:60px;bottom:0;z-index:70;
    background:#fff;padding:18px 20px 48px;overflow-y:auto;
    transform:translateX(102%);visibility:hidden;
    transition:transform .22s ease-out,visibility .22s;
    border-top:1px solid var(--border);
  }
  .mobile-drawer.is-open{transform:translateX(0);visibility:visible}
  .mobile-drawer .drawer-title{font-size:12.5px;letter-spacing:.1em;color:var(--ink-3);margin:18px 0 8px}
  .mobile-drawer a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:48px;padding:0 12px;border-radius:10px;
    font-size:15px;color:var(--ink-2);border:1px solid transparent;
  }
  .mobile-drawer a:hover,.mobile-drawer a.is-active{background:var(--brand-50);color:var(--brand-700);border-color:var(--brand-100)}
  .mobile-drawer .btn{width:100%;margin-top:22px}
  .article-layout{grid-template-columns:minmax(0,1fr);padding:40px 0 56px}
  .article-aside{position:static;flex-direction:column}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-block{grid-template-columns:minmax(0,1fr);padding:32px 26px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .header-inner{height:60px}
  .site-header .brand__text strong{font-size:14.5px}
  .article-head h1{font-size:30px}
  .section{padding:56px 0}
  .section-head h2{font-size:22px}
  .article-body{padding:28px 22px;font-size:16px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-block{padding:26px 20px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .brand__text em{display:none}
  .article-head h1{font-size:25px;padding-left:12px}
  .article-body{padding:22px 18px}
  .cta-form{padding:20px 16px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .cta-block .btn,.cta-form .btn{max-width:360px;margin:0 auto;width:100%;display:flex}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --blue-50:#EEF4FF; --blue-100:#DCE7FF; --blue-300:#9CB8F5;
  --blue-500:#2E6BE6; --blue-600:#1A57CC; --blue-700:#144399; --blue-900:#0E2E6B;
  --amber:#F08A24; --amber-deep:#D2741A; --amber-soft:#FFF3E4; --amber-ink:#3A2405;
  --pos:#12A594; --pos-soft:#E4F6F3; --neg:#D4685E; --neg-soft:#FBEDEB;
  --bg:#F5F8FD; --card:#FFFFFF; --alt:#EDF3FC; --line:#E2EAF6; --line-strong:#CFDCF0;
  --paper:#FBF7EF; --paper-line:#E7DECB;
  --ink:#101B2E; --ink-2:#55688A; --ink-3:#8695AE;
  --r-card:16px; --r-sub:12px; --r-btn:10px; --r-pill:999px;
  --sh1:0 1px 2px rgba(16,42,80,.05), 0 1px 3px rgba(16,42,80,.04);
  --sh2:0 8px 24px -10px rgba(16,42,80,.14), 0 2px 6px rgba(16,42,80,.05);
  --sh-hover:0 16px 36px -14px rgba(16,42,80,.22);
  --ring:0 0 0 3px rgba(46,107,230,.35);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,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:1.75;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-sub)}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--blue-600);text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,text-decoration-color .18s ease-out}
a:hover{color:var(--blue-700);text-decoration:underline}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:8px}
::selection{background:var(--blue-100);color:var(--blue-900)}

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

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand__mark{
  width:36px;height:36px;flex:none;border-radius:11px;
  background:var(--blue-900);color:#fff;display:grid;place-items:center;
  box-shadow:0 3px 0 0 rgba(14,46,107,.18);
}
.brand__text strong{display:block;font-size:15.5px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.brand__text em{display:block;font-style:normal;font-size:12px;color:var(--ink-3);letter-spacing:.05em}

.main-nav{margin-left:auto}
.main-nav > ul{display:flex;align-items:center;gap:2px}
.nav-item{position:relative}
.nav-item > a,
.nav-item > button{
  display:inline-flex;align-items:center;gap:6px;
  min-height:44px;padding:0 13px;border-radius:8px;
  font-size:14.5px;color:var(--ink-2);
  transition:color .18s ease-out,background-color .18s ease-out;
}
.nav-item > a:hover,
.nav-item > button:hover{color:var(--ink);background:var(--blue-50);text-decoration:none}
.nav-item.is-active > a{color:var(--ink);font-weight:600}
.nav-item.is-active > a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:6px;height:2px;
  border-radius:2px;background:var(--blue-600);
}
.caret{transition:transform .18s ease-out}
.nav-item.is-open .caret{transform:rotate(180deg)}

.mega-panel{
  position:absolute;top:calc(100% + 10px);right:0;
  width:720px;max-width:calc(100vw - 48px);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh2);padding:24px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .18s ease-out,transform .18s ease-out,visibility .18s;
  transition-delay:.15s;
}
.mega-panel::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
.nav-item:hover .mega-panel,
.nav-item.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);transition-delay:0s}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}
.mega-col h4{
  font-size:12.5px;font-weight:700;letter-spacing:.12em;color:var(--ink-3);
  text-transform:uppercase;margin-bottom:10px;
}
.mega-col ul{display:flex;flex-direction:column;gap:2px}
.mega-col ul a{
  display:block;padding:7px 8px;border-radius:8px;font-size:14px;color:var(--ink-2);
  transition:transform .16s ease-out,color .16s ease-out,background-color .16s ease-out;
}
.mega-col ul a:hover{color:var(--blue-600);background:var(--blue-50);transform:translateX(2px);text-decoration:none}
.mega-card{
  display:block;border:1px solid var(--line-strong);border-radius:var(--r-sub);
  background:var(--blue-50);padding:16px;
}
.mega-card:hover{text-decoration:none;border-color:var(--blue-300);box-shadow:var(--sh1)}
.mega-card strong{display:block;font-size:14.5px;color:var(--blue-900);margin-bottom:4px}
.mega-card span{font-size:13px;color:var(--ink-2)}

.header-cta{flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line-strong);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--blue-50)}
.nav-toggle svg{stroke:var(--ink)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn:hover{text-decoration:none}
.btn--primary{
  background:var(--blue-500);color:#fff;
  box-shadow:0 3px 0 0 rgba(20,67,153,.55);
}
.btn--primary:hover{background:var(--blue-700);transform:translateY(-1px);box-shadow:var(--sh2),0 3px 0 0 rgba(14,46,107,.5)}
.btn--primary:active{transform:translateY(0);box-shadow:0 2px 0 0 rgba(20,67,153,.55)}
.btn--ghost{
  background:#fff;color:var(--blue-700);border-color:var(--line-strong);
}
.btn--ghost:hover{background:var(--blue-50);border-color:var(--blue-300)}
.btn--amber{
  background:var(--amber);color:var(--amber-ink);
  box-shadow:0 3px 0 0 rgba(154,82,10,.45);
}
.btn--amber:hover{background:var(--amber-deep);color:var(--amber-ink);transform:translateY(-1px);box-shadow:var(--sh2),0 3px 0 0 rgba(120,63,6,.45)}
.btn--amber:active{transform:translateY(0);box-shadow:0 2px 0 0 rgba(154,82,10,.4)}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.85}
.btn.is-loading::after{
  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;
}
.btn--amber.is-loading::after{border-color:rgba(58,36,5,.35);border-top-color:var(--amber-ink)}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- Badges / tags ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  background:var(--blue-50);color:var(--blue-700);
  border:1px solid var(--blue-100);
}
.tag--amber{background:var(--amber-soft);color:var(--amber-ink);border-color:#F6DCBC}
.tag--pos{background:var(--pos-soft);color:#0B6E63;border-color:#C4EBE5}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--ink-3);margin-bottom:20px;
}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--blue-600)}
.breadcrumb .sep{color:#C3CEDF}
.breadcrumb .current{color:var(--ink);font-weight:600}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--paper) 0%,#F1F6FD 100%);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(46,107,230,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,107,230,.07) 1px,transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 45%,#000 100%);
  mask-image:linear-gradient(90deg,transparent 0%,#000 45%,#000 100%);
}
.hero-inner{
  position:relative;
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
  padding:88px 0 92px;
}
.hero-copy h1{
  font-size:40px;font-weight:700;letter-spacing:-.02em;line-height:1.25;
  margin:18px 0 18px;color:var(--ink);
}
.hero-copy h1 span{color:var(--blue-600)}
.hero-sub{
  font-size:17px;line-height:1.85;color:var(--ink-2);max-width:34em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  margin-top:36px;padding-top:24px;border-top:1px dashed var(--paper-line);
}
.hero-stats li strong{
  display:block;font-size:19px;font-weight:700;color:var(--blue-900);letter-spacing:-.02em;
}
.hero-stats li span{display:block;font-size:12.5px;color:var(--ink-3);margin-top:2px;letter-spacing:.02em}

.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-card);
  border:2px solid var(--blue-900);
  box-shadow:8px 8px 0 0 rgba(14,46,107,.12);
  background:var(--alt);
}
.hero-mini{
  position:absolute;left:-26px;bottom:-26px;
  width:246px;background:#fff;border:1px solid var(--line-strong);
  border-radius:var(--r-sub);box-shadow:var(--sh2);padding:16px 18px;
}
.hero-mini .mini-label{font-size:12.5px;letter-spacing:.08em;color:var(--ink-3)}
.hero-mini .mini-value{
  display:flex;align-items:baseline;gap:6px;margin-top:4px;
}
.hero-mini .mini-value b{font-size:30px;font-weight:700;letter-spacing:-.02em;color:var(--blue-900)}
.hero-mini .mini-value i{font-style:normal;font-size:13px;color:var(--ink-2)}
.hero-mini .mini-bar{
  height:6px;border-radius:999px;background:var(--blue-50);margin-top:12px;overflow:hidden;
}
.hero-mini .mini-bar i{display:block;height:100%;width:86%;background:var(--pos);border-radius:999px}

/* ---------- Layout ---------- */
.content-wrap{padding:72px 0 88px;background:var(--bg)}
.content-grid{display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;align-items:start}

/* ---------- Anchor nav ---------- */
.anchor-nav{position:sticky;top:104px}
.anchor-card{
  background:var(--paper);border:2px solid var(--blue-900);border-radius:var(--r-card);
  box-shadow:6px 6px 0 0 rgba(14,46,107,.1);padding:22px 20px;
}
.anchor-card h2{
  font-size:12.5px;letter-spacing:.14em;font-weight:700;color:var(--blue-900);
  text-transform:uppercase;margin-bottom:14px;
}
.anchor-card ol{display:flex;flex-direction:column;gap:2px;counter-reset:anc}
.anchor-card ol li a{
  display:flex;gap:10px;align-items:flex-start;
  padding:9px 10px;border-radius:8px;font-size:14px;color:var(--ink-2);
  line-height:1.5;
  transition:background-color .16s ease-out,color .16s ease-out,transform .16s ease-out;
}
.anchor-card ol li a::before{
  counter-increment:anc;
  content:counter(anc,decimal-leading-zero);
  font-size:12px;font-weight:700;color:var(--blue-300);
  letter-spacing:.04em;flex:none;padding-top:1px;
}
.anchor-card ol li a:hover{
  background:#fff;color:var(--blue-700);transform:translateX(2px);text-decoration:none;
}
.anchor-card ol li a.is-current{background:#fff;color:var(--blue-700);font-weight:600}
.anchor-note{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--paper-line);
  font-size:13px;line-height:1.7;color:var(--ink-2);
}
.anchor-note b{color:var(--blue-900)}

.anchor-inline{display:none}

/* ---------- Longform ---------- */
.longform{max-width:820px}
.block{margin-bottom:56px;scroll-margin-top:100px}
.block:last-child{margin-bottom:0}
.block h2{
  display:flex;align-items:center;gap:14px;
  font-size:28px;font-weight:700;letter-spacing:-.02em;margin-bottom:18px;
}
.block h2 .num{
  flex:none;display:grid;place-items:center;
  width:44px;height:44px;border-radius:12px;
  background:var(--blue-50);color:var(--blue-700);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  border:1px solid var(--blue-100);
}
.block h2::after{
  content:"";flex:none;width:3px;height:18px;border-radius:2px;
  background:var(--blue-600);order:-1;margin-right:-6px;
  display:none;
}
.block h3{
  font-size:19px;font-weight:600;margin:28px 0 12px;
  padding-bottom:8px;border-bottom:1px solid var(--line);
}
.block p{color:var(--ink-2);margin-bottom:16px;max-width:36em}
.block p strong{color:var(--ink);font-weight:600}
.block a{font-weight:600}

.log-card{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue-300);
  border-radius:var(--r-sub);padding:20px 22px;box-shadow:var(--sh1);
  margin:20px 0 24px;
}
.log-card .log-head{
  display:flex;align-items:center;gap:10px;margin-bottom:12px;
}
.log-card .log-head span{
  font-size:12.5px;letter-spacing:.1em;color:var(--ink-3);font-weight:700;
}
.log-card ul{display:flex;flex-direction:column;gap:10px}
.log-card ul li{
  position:relative;padding-left:22px;font-size:15px;color:var(--ink-2);line-height:1.7;
}
.log-card ul li::before{
  content:"";position:absolute;left:0;top:9px;
  width:8px;height:8px;border-radius:3px;background:var(--blue-300);
}
.log-card ul li b{color:var(--ink);font-weight:600}

.callout{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--amber-soft);border:1px solid #F6DCBC;border-radius:var(--r-sub);
  padding:18px 20px;margin:24px 0;
}
.callout svg{flex:none;margin-top:3px;stroke:var(--amber-deep)}
.callout p{margin:0;color:var(--amber-ink);font-size:15px;line-height:1.75}

.figure-block{margin:26px 0 30px}
.figure-block img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-sub);
  border:1px solid var(--line-strong);background:var(--alt);
}
.figure-block figcaption{
  margin-top:10px;font-size:13px;color:var(--ink-3);line-height:1.6;
}

.step-list{counter-reset:step;display:flex;flex-direction:column;gap:0;margin:22px 0 6px}
.step-list li{
  position:relative;padding:0 0 24px 46px;
  border-left:2px dashed var(--paper-line);margin-left:15px;
}
.step-list li:last-child{border-left-color:transparent;padding-bottom:0}
.step-list li::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:-16px;top:-2px;
  width:32px;height:32px;border-radius:10px;
  display:grid;place-items:center;
  background:var(--blue-900);color:#fff;font-size:13px;font-weight:700;
}
.step-list li h4{font-size:16.5px;font-weight:600;margin-bottom:6px;color:var(--ink)}
.step-list li p{margin:0;font-size:15px;color:var(--ink-2)}

.mini-matrix{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:22px 0 8px;
}
.mini-matrix div{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sub);
  padding:16px 18px;box-shadow:var(--sh1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.mini-matrix div:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--blue-300)}
.mini-matrix h4{font-size:15.5px;font-weight:600;margin-bottom:6px}
.mini-matrix p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-block{margin-top:64px;padding-top:56px;border-top:2px solid var(--paper-line)}
.faq-block > h2{
  display:flex;align-items:center;gap:12px;
  font-size:28px;letter-spacing:-.02em;margin-bottom:24px;
}
.faq-block > h2::before{
  content:"";width:3px;height:20px;border-radius:2px;background:var(--blue-600);
}
.faq-list{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item h3{margin:0;font-size:17px;font-weight:600}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:20px 24px;min-height:44px;
  color:var(--ink);transition:background-color .18s ease-out;
}
.faq-q:hover{background:var(--blue-50)}
.faq-q .plus{
  flex:none;width:26px;height:26px;border-radius:8px;
  background:var(--blue-50);color:var(--blue-700);
  display:grid;place-items:center;font-size:17px;font-weight:700;line-height:1;
  transition:transform .2s ease-out,background-color .2s ease-out;
}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);background:var(--blue-100)}
.faq-a{
  display:none;padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-2);
}
.faq-item.is-open .faq-a{display:block}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--blue-900);
  border-top:1px solid rgba(255,255,255,.16);
  padding:64px 0;
}
.cta-grid{display:grid;grid-template-columns:1fr 420px;gap:48px;align-items:center}
.cta-copy h2{
  color:#fff;font-size:28px;letter-spacing:-.02em;margin-bottom:14px;
}
.cta-copy p{color:rgba(255,255,255,.76);font-size:15.5px;max-width:32em;margin-bottom:18px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px}
.cta-points span{
  font-size:13px;color:rgba(255,255,255,.82);
  border:1px solid rgba(255,255,255,.24);border-radius:var(--r-pill);
  padding:5px 14px;
}
.cta-card{
  background:#fff;border-radius:var(--r-card);padding:26px;
  box-shadow:0 18px 40px -18px rgba(0,0,0,.5);
}
.cta-card h3{font-size:17px;font-weight:600;margin-bottom:6px}
.cta-card .form-hint{font-size:13px;color:var(--ink-3);margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field input{
  width:100%;height:48px;padding:0 14px;
  background:#fff;border:1px solid var(--line-strong);border-radius:var(--r-btn);
  font-size:15px;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field input::placeholder{color:#A9B6CB}
.field input:hover{border-color:var(--blue-300)}
.field input:focus{
  outline:none;border-color:var(--blue-500);box-shadow:var(--ring);
}
.field.is-error input{border-color:var(--neg);box-shadow:0 0 0 3px rgba(212,104,94,.22)}
.field .msg{display:none;font-size:12.5px;margin-top:6px}
.field.is-error .msg{display:block;color:var(--neg)}
.cta-card .btn{width:100%}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:12px;line-height:1.6}
.form-success{
  display:none;background:var(--pos-soft);border:1px solid #BFE9E2;border-radius:var(--r-sub);
  padding:22px;text-align:center;
}
.form-success.is-visible{display:block}
.form-success strong{display:block;font-size:16.5px;color:#0B6E63;margin-bottom:6px}
.form-success p{font-size:14px;color:#12675D;margin-bottom:14px}
.form-success .btn{width:auto}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--blue-900);color:rgba(255,255,255,.72);
  border-top:1px solid rgba(255,255,255,.18);
  padding:56px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand__mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:rgba(255,255,255,.12);display:grid;place-items:center;
}
.footer-brand strong{color:#fff;font-size:15.5px;font-weight:700}
.site-footer p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.66);max-width:30em}
.site-footer h4{
  font-size:12.5px;letter-spacing:.12em;font-weight:700;
  color:rgba(255,255,255,.55);margin-bottom:14px;
}
.site-footer ul{display:flex;flex-direction:column;gap:9px}
.site-footer ul a{font-size:14px;color:rgba(255,255,255,.72)}
.site-footer ul a:hover{color:#fff;text-decoration:underline}
.footer-contact li{font-size:13.5px;color:rgba(255,255,255,.66)}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  border-top:1px solid rgba(255,255,255,.16);
  padding:18px 0 24px;font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,46,107,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s;
  z-index:300;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);
  background:#fff;z-index:310;transform:translateX(100%);
  transition:transform .26s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;box-shadow:-12px 0 32px -14px rgba(16,42,80,.3);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;border-bottom:1px solid var(--line);height:60px;flex:none;
}
.drawer-head strong{font-size:15px;color:var(--ink)}
.drawer-close{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line-strong);background:#fff;
}
.drawer-close:hover{background:var(--blue-50)}
.drawer-body{padding:16px 20px 32px;overflow-y:auto;flex:1}
.drawer-body > ul > li{border-bottom:1px solid var(--line)}
.drawer-body > ul > li > a,
.drawer-body > ul > li > button{
  display:flex;align-items:center;justify-content:space-between;
  width:100%;min-height:52px;font-size:15.5px;color:var(--ink-2);text-align:left;
}
.drawer-body > ul > li > a:hover,
.drawer-body > ul > li > button:hover{color:var(--blue-600);text-decoration:none}
.drawer-body > ul > li.is-active > a{color:var(--blue-700);font-weight:600}
.drawer-sub{display:none;padding:0 0 14px 12px}
.drawer-sub.is-open{display:block}
.drawer-sub li a{display:block;padding:9px 0;font-size:14px;color:var(--ink-2)}
.drawer-sub li a:hover{color:var(--blue-600)}
.drawer-cta{margin-top:22px}
.drawer-cta .btn{width:100%}
.drawer-note{margin-top:20px;font-size:12.5px;color:var(--ink-3);line-height:1.7}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .hero-inner{gap:40px;padding:72px 0 76px}
  .hero-copy h1{font-size:36px}
  .content-grid{grid-template-columns:236px minmax(0,1fr);gap:36px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:56px 0 64px}
  .hero-figure{order:2}
  .hero-mini{position:static;width:100%;margin-top:16px;left:auto;bottom:auto}
  .hero-stats{grid-template-columns:repeat(4,1fr);gap:14px}
  .content-grid{grid-template-columns:1fr;gap:0}
  .anchor-nav{display:none}
  .anchor-inline{
    display:block;margin-bottom:32px;background:var(--paper);
    border:2px solid var(--blue-900);border-radius:var(--r-card);
    box-shadow:5px 5px 0 0 rgba(14,46,107,.1);padding:18px;
  }
  .anchor-inline summary{
    cursor:pointer;font-size:14.5px;font-weight:600;color:var(--blue-900);
    list-style:none;display:flex;align-items:center;justify-content:space-between;
  }
  .anchor-inline summary::-webkit-details-marker{display:none}
  .anchor-inline summary::after{content:"＋";color:var(--blue-600);font-weight:700}
  .anchor-inline[open] summary::after{content:"－"}
  .anchor-inline ol{display:flex;flex-direction:column;gap:2px;margin-top:12px}
  .anchor-inline ol a{display:block;padding:9px 0;font-size:14px;color:var(--ink-2);border-bottom:1px dashed var(--paper-line)}
  .anchor-inline ol li:last-child a{border-bottom:0}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .cta-card{max-width:560px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .block h2{font-size:24px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .header-inner{height:60px}
  .site-header{height:60px}
  .brand__text em{display:none}
  .brand__text strong{font-size:14.5px}
  .hero-copy h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:16px;padding-top:20px;margin-top:28px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-figure img{aspect-ratio:16/11;box-shadow:5px 5px 0 0 rgba(14,46,107,.12)}
  .content-wrap{padding:48px 0 64px}
  .block{margin-bottom:44px}
  .block h2{font-size:22px;gap:12px}
  .block h2 .num{width:38px;height:38px;font-size:14px;border-radius:10px}
  .block h3{font-size:18px}
  .mini-matrix{grid-template-columns:1fr}
  .faq-block{margin-top:48px;padding-top:40px}
  .faq-block > h2{font-size:22px}
  .faq-q{padding:17px 18px;font-size:16px}
  .faq-a{padding:0 18px 20px}
  .cta-band{padding:48px 0}
  .cta-copy h2{font-size:22px}
  .cta-card{padding:22px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:44px}
  .footer-bottom{font-size:12.5px}
}
@media (max-width:480px){
  .hero-copy h1{font-size:26px;line-height:1.3}
  .hero-actions .btn{width:100%}
  .hero-stats li strong{font-size:17px}
  .cta-card .btn,
  .form-success .btn{max-width:360px;width:100%;margin:0 auto}
  .form-success .btn{display:flex}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
    --blue-50:#EEF4FF;
    --blue-100:#DCE7FF;
    --blue-300:#9CB8F5;
    --blue-500:#2E6BE6;
    --blue-600:#1A57CC;
    --blue-700:#144399;
    --blue-900:#0E2E6B;
    --amber:#F08A24;
    --amber-soft:#FFF3E4;
    --amber-ink:#3A2405;
    --pos:#12A594;
    --neg:#D4685E;
    --bg:#F5F8FD;
    --card:#FFFFFF;
    --alt:#EDF3FC;
    --line:#E2EAF6;
    --line-strong:#CFDCF0;
    --ink:#101B2E;
    --ink-2:#55688A;
    --ink-3:#8695AE;
    --r-lg:16px;
    --r-md:12px;
    --r-sm:10px;
    --r-pill:999px;
    --sh1:0 1px 2px rgba(16,42,80,.05),0 1px 3px rgba(16,42,80,.04);
    --sh2:0 8px 24px -10px rgba(16,42,80,.14),0 2px 6px rgba(16,42,80,.05);
    --sh-hover:0 16px 36px -14px rgba(16,42,80,.22);
    --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:var(--font);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-radius:var(--r-md);}
  a{color:var(--blue-600);text-decoration:none;}
  a:hover{text-decoration:underline;}
  button{font-family:inherit;}
  h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
  p{margin:0 0 1.1em;}
  ul,ol{margin:0;padding:0;list-style:none;}
  table{border-collapse:collapse;width:100%;}
  :focus-visible{outline:3px solid rgba(46,107,230,.35);outline-offset:2px;border-radius:8px;}

  .container{max-width:1200px;margin:0 auto;padding:0 24px;}
  .section{padding:96px 0;}
  .section--tight{padding:64px 0;}
  .section--alt{background:var(--alt);}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
  .section-head h2{font-size:28px;position:relative;padding-left:16px;}
  .section-head h2::before{
    content:"";position:absolute;left:0;top:6px;width:3px;height:18px;border-radius:2px;background:var(--blue-500);
  }
  .section-head p{margin:8px 0 0;color:var(--ink-2);font-size:15px;max-width:620px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;
    color:var(--blue-700);background:var(--blue-50);border:1px solid var(--blue-100);
    padding:6px 12px;border-radius:var(--r-pill);font-weight:600;
  }

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
    backdrop-filter:saturate(150%) blur(6px);
    border-bottom:1px solid var(--line);
    box-shadow:var(--sh1);
  }
  .header-inner{display:flex;align-items:center;gap:24px;height:72px;}
  .brand{display:flex;align-items:center;gap:12px;color:var(--ink);flex:0 0 auto;}
  .brand:hover{text-decoration:none;}
  .brand__mark{
    width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
    background:var(--blue-50);color:var(--blue-600);border:1px solid var(--blue-100);
  }
  .brand__text{display:flex;flex-direction:column;line-height:1.25;}
  .brand__text strong{font-size:16px;font-weight:700;color:var(--ink);}
  .brand__text em{font-style:normal;font-size:11.5px;color:var(--ink-3);letter-spacing:.06em;}
  .main-nav{margin-left:auto;}
  .main-nav > ul{display:flex;align-items:center;gap:4px;}
  .nav-item{position:relative;}
  .nav-item > a,
  .nav-item > button{
    display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 12px;
    font-size:14px;color:var(--ink-2);background:transparent;border:0;border-radius:8px;
    cursor:pointer;transition:color .16s ease-out,background-color .16s ease-out;
  }
  .nav-item > a::after,
  .nav-item > button::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
    background:var(--blue-500);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
  }
  .nav-item:hover > a,
  .nav-item:hover > button{color:var(--ink);background:var(--blue-50);text-decoration:none;}
  .nav-item:hover > a::after,
  .nav-item:hover > button::after{transform:scaleX(1);}
  .nav-item.is-active > a{color:var(--ink);background:var(--blue-50);font-weight:600;}
  .nav-item.is-active > a::after{transform:scaleX(1);}
  .caret{transition:transform .18s ease-out;}
  .nav-item.open .caret{transform:rotate(180deg);}

  .mega-panel{
    position:absolute;top:calc(100% + 12px);right:0;width:720px;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--sh2);padding:24px;display:none;
  }
  .nav-item.open .mega-panel{display:block;}
  .mega-grid{display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:24px;}
  .mega-col h4{
    font-size:12.5px;letter-spacing:.14em;color:var(--ink-3);font-weight:600;margin-bottom:12px;
  }
  .mega-col ul li{margin-bottom:8px;}
  .mega-col ul li a{
    font-size:14px;color:var(--ink-2);display:inline-block;
    transition:color .16s ease-out,transform .16s ease-out;
  }
  .mega-col ul li a:hover{color:var(--blue-600);transform:translateX(2px);text-decoration:none;}
  .mega-card{
    background:var(--blue-50);border:1px solid var(--blue-100);border-radius:var(--r-md);
    padding:16px;display:flex;gap:14px;align-items:flex-start;
  }
  .mega-card img{width:64px;height:64px;object-fit:cover;border-radius:10px;background:var(--alt);}
  .mega-card strong{display:block;font-size:14px;margin-bottom:4px;}
  .mega-card span{font-size:13px;color:var(--ink-2);line-height:1.6;}

  .header-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .burger{
    display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
    background:#fff;color:var(--ink);cursor:pointer;
  }
  .burger:hover{background:var(--blue-50);}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;
    transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  }
  .btn:hover{text-decoration:none;}
  .btn-primary{background:var(--blue-600);color:#fff;box-shadow:var(--sh1);}
  .btn-primary:hover{background:var(--blue-700);transform:translateY(-1px);box-shadow:var(--sh2);}
  .btn-primary:active{transform:none;box-shadow:var(--sh1);}
  .btn-outline{background:#fff;color:var(--blue-600);border-color:var(--line-strong);}
  .btn-outline:hover{background:var(--blue-50);border-color:var(--blue-300);}
  .btn-amber{background:var(--amber);color:var(--amber-ink);}
  .btn-amber:hover{background:#DE7A16;transform:translateY(-1px);box-shadow:var(--sh2);}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;}
  .btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}
  .link-arrow{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
  .link-arrow:hover{text-decoration:underline;}

  /* ---------- breadcrumb ---------- */
  .breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line);}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);padding:14px 0;}
  .breadcrumb a{color:var(--ink-3);}
  .breadcrumb a:hover{color:var(--blue-600);}
  .breadcrumb .sep{color:#B9C6DC;}
  .breadcrumb .current{color:var(--ink);}

  /* ---------- page banner ---------- */
  .page-banner{
    background:#fff;
    background-image:linear-gradient(180deg,#FFFFFF 0%,#F7FAFF 100%);
    border-bottom:1px solid var(--line);
    position:relative;
    overflow:hidden;
  }
  .page-banner::after{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(#DCE7FF 1px,transparent 1px);
    background-size:22px 22px;opacity:.5;pointer-events:none;
    mask-image:linear-gradient(90deg,transparent 0%,#000 60%);
    -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 60%);
  }
  .banner-grid{
    position:relative;z-index:1;display:grid;grid-template-columns:1.35fr .95fr;gap:48px;
    padding:64px 0 60px;align-items:start;
  }
  .page-banner h1{font-size:40px;margin:16px 0 16px;}
  .page-banner .lede{font-size:16px;color:var(--ink-2);max-width:560px;}
  .banner-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
  .quick-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
  .quick-links a{
    font-size:13.5px;color:var(--blue-700);background:var(--blue-50);border:1px solid var(--blue-100);
    padding:7px 14px;border-radius:var(--r-pill);transition:background-color .16s ease-out,border-color .16s ease-out;
  }
  .quick-links a:hover{background:var(--blue-100);border-color:var(--blue-300);text-decoration:none;}

  .legend-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--sh2);padding:24px;
  }
  .legend-card h3{font-size:17px;margin-bottom:6px;}
  .legend-card p{font-size:13.5px;color:var(--ink-2);margin-bottom:18px;}
  .legend-list li{
    display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-top:1px solid var(--line);font-size:14px;color:var(--ink-2);
  }
  .legend-list li:first-child{border-top:0;padding-top:0;}
  .legend-list strong{display:block;font-size:14px;color:var(--ink);font-weight:600;}

  .dot{width:12px;height:12px;border-radius:50%;flex:0 0 auto;margin-top:6px;display:inline-block;}
  .dot--pos{background:var(--pos);}
  .dot--amber{background:var(--amber);}
  .dot--muted{background:#C6D3E6;}

  /* ---------- matrix ---------- */
  .matrix-toolbar{
    display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
    margin-bottom:18px;
  }
  .matrix-toolbar .hint{font-size:13.5px;color:var(--ink-3);}
  .matrix-scroll{
    overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--sh1);
  }
  table.matrix{min-width:880px;font-size:14.5px;}
  table.matrix thead th{
    background:var(--blue-50);color:var(--blue-900);text-align:left;font-weight:600;
    font-size:13.5px;letter-spacing:.04em;padding:16px 20px;border-bottom:1px solid var(--line-strong);
    white-space:nowrap;
  }
  table.matrix thead th:first-child{border-top-left-radius:var(--r-lg);}
  table.matrix thead th:last-child{border-top-right-radius:var(--r-lg);}
  table.matrix tbody th{
    text-align:left;font-weight:600;color:var(--ink);background:#fff;
    position:sticky;left:0;z-index:2;padding:16px 20px;border-bottom:1px solid var(--line);
    box-shadow:1px 0 0 var(--line);white-space:nowrap;
  }
  table.matrix tbody td{
    padding:16px 20px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top;
  }
  table.matrix tbody tr:last-child th,
  table.matrix tbody tr:last-child td{border-bottom:0;}
  table.matrix tbody tr:hover td{background:#FAFCFF;}
  .cell-mark{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--ink);}
  .cell-mark .dot{margin-top:0;width:10px;height:10px;}
  .cell-note{display:block;font-size:13px;color:var(--ink-3);margin-top:4px;}

  .matrix-note{
    display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px;
  }
  .matrix-note div{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
    padding:18px 20px;box-shadow:var(--sh1);font-size:14px;color:var(--ink-2);
  }
  .matrix-note strong{display:block;color:var(--ink);font-size:15px;margin-bottom:6px;}

  /* ---------- cards ---------- */
  .card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
  .card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:26px;box-shadow:var(--sh1);
    transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
    display:flex;flex-direction:column;
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--blue-300);}
  .card__icon{
    width:40px;height:40px;border-radius:12px;background:var(--blue-50);color:var(--blue-600);
    display:grid;place-items:center;border:1px solid var(--blue-100);margin-bottom:16px;
  }
  .card h3{font-size:18px;margin-bottom:10px;}
  .card p{font-size:14.5px;color:var(--ink-2);margin-bottom:16px;}
  .card .link-arrow{margin-top:auto;}

  .card--wide{grid-column:span 2;}
  .card--media{padding:0;overflow:hidden;}
  .card--media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:0;background:var(--alt);}
  .card--media .card__body{padding:24px 26px 26px;}

  /* ---------- scenario split ---------- */
  .split{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
  .split-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh1);
  }
  .split-card h3{font-size:19px;margin-bottom:14px;display:flex;align-items:center;gap:10px;}
  .split-card ul li{
    display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);padding:10px 0;border-top:1px dashed var(--line);
  }
  .split-card ul li:first-child{border-top:0;padding-top:0;}
  .tag{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
    font-size:12.5px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  }
  .tag--blue{background:var(--blue-50);color:var(--blue-700);}
  .tag--amber{background:var(--amber-soft);color:var(--amber-ink);}
  .tag--green{background:#E4F6F2;color:#0B6E63;}

  /* ---------- steps ---------- */
  .check-list li{
    display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2);
  }
  .check-list li:last-child{border-bottom:0;}
  .step-no{
    flex:0 0 auto;width:32px;height:32px;border-radius:10px;background:var(--blue-50);
    color:var(--blue-700);display:grid;place-items:center;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  }
  .check-list strong{display:block;color:var(--ink);font-size:15px;margin-bottom:2px;}

  /* ---------- faq ---------- */
  .faq-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);overflow:hidden;}
  .faq-item + .faq-item{border-top:1px solid var(--line);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
    background:transparent;border:0;padding:24px 26px;cursor:pointer;text-align:left;
    color:var(--ink);transition:background-color .16s ease-out;
  }
  .faq-q:hover{background:#FAFCFF;}
  .faq-q h3{font-size:17px;font-weight:600;}
  .faq-icon{
    flex:0 0 auto;width:28px;height:28px;border-radius:50%;background:var(--blue-50);color:var(--blue-600);
    display:grid;place-items:center;font-size:16px;line-height:1;transition:transform .2s ease-out,background-color .16s ease-out;
  }
  .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--blue-100);}
  .faq-a{padding:0 26px 24px;font-size:15px;color:var(--ink-2);display:none;}
  .faq-item.open .faq-a{display:block;}

  /* ---------- cta bar ---------- */
  .cta-bar{
    background:var(--blue-900);color:#fff;border-radius:var(--r-lg);
    padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
    box-shadow:var(--sh2);
  }
  .cta-bar h2{font-size:24px;margin-bottom:8px;}
  .cta-bar p{color:rgba(255,255,255,.78);font-size:14.5px;margin:0;max-width:620px;}
  .cta-bar .actions{display:flex;gap:12px;flex:0 0 auto;flex-wrap:wrap;}

  /* ---------- footer ---------- */
  .site-footer{
    background:var(--blue-900);color:rgba(255,255,255,.72);
    border-top:1px solid rgba(255,255,255,.14);margin-top:0;padding:64px 0 0;
  }
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
  .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;color:#fff;}
  .footer-brand__mark{
    width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
    background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
  }
  .footer-brand strong{font-size:16px;color:#fff;}
  .site-footer p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.66);}
  .site-footer h4{font-size:13px;letter-spacing:.14em;color:rgba(255,255,255,.92);margin-bottom:16px;font-weight:600;}
  .site-footer ul li{margin-bottom:10px;font-size:14px;}
  .site-footer ul li a{color:rgba(255,255,255,.72);transition:color .16s ease-out;}
  .site-footer ul li a:hover{color:#fff;text-decoration:underline;}
  .footer-contact li{color:rgba(255,255,255,.7);}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);
  }

  /* ---------- drawer ---------- */
  .drawer-mask{
    position:fixed;inset:0;background:rgba(14,46,107,.4);opacity:0;visibility:hidden;
    transition:opacity .2s ease-out,visibility .2s ease-out;z-index:80;
  }
  .drawer-mask.show{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);background:#fff;z-index:90;
    transform:translateX(102%);transition:transform .24s ease-out;
    display:flex;flex-direction:column;box-shadow:-12px 0 40px -18px rgba(16,42,80,.35);
  }
  .drawer.show{transform:translateX(0);}
  .drawer__head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);}
  .drawer__head strong{font-size:15px;}
  .drawer__close{
    width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--ink);
  }
  .drawer__close:hover{background:var(--blue-50);}
  .drawer__body{padding:16px 20px 32px;overflow-y:auto;}
  .drawer__body a{
    display:block;padding:14px 12px;border-radius:10px;color:var(--ink-2);font-size:15px;
  }
  .drawer__body a:hover,.drawer__body a.is-active{background:var(--blue-50);color:var(--blue-700);text-decoration:none;}
  .drawer__cta{margin-top:16px;}

  /* ---------- responsive ---------- */
  @media (max-width:1279px){
    .mega-panel{width:640px;}
    .card-grid{grid-template-columns:repeat(2,1fr);}
    .card--wide{grid-column:span 2;}
  }
  @media (max-width:1023px){
    .main-nav{display:none;}
    .burger{display:inline-flex;align-items:center;justify-content:center;}
    .header-cta .btn{display:none;}
    .banner-grid{grid-template-columns:1fr;gap:32px;padding:48px 0 44px;}
    .page-banner h1{font-size:32px;}
    .matrix-note{grid-template-columns:1fr;}
    .split{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:767px){
    body{font-size:15.5px;}
    .container{padding:0 20px;}
    .section{padding:56px 0;}
    .section--tight{padding:44px 0;}
    .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
    .section-head h2{font-size:22px;}
    .page-banner h1{font-size:30px;}
    .card-grid{grid-template-columns:1fr;}
    .card--wide{grid-column:span 1;}
    .cta-bar{flex-direction:column;align-items:flex-start;padding:28px 22px;}
    .cta-bar .actions{width:100%;}
    .cta-bar .actions .btn{width:100%;max-width:360px;}
    .faq-q{padding:20px;}
    .faq-a{padding:0 20px 20px;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;gap:8px;}
    .banner-actions .btn{width:100%;max-width:360px;}
  }
  @media (max-width:480px){
    .page-banner h1{font-size:26px;}
    .brand__text em{display:none;}
    .brand__text strong{font-size:14.5px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;}
  }

/* roulang page: category4 */
:root{
  --c-50:#EEF4FF;--c-100:#DCE7FF;--c-300:#9CB8F5;--c-500:#2E6BE6;--c-600:#1A57CC;--c-700:#144399;--c-900:#0E2E6B;
  --amber:#F08A24;--amber-soft:#FFF3E4;--amber-ink:#3A2405;--amber-deep:#D2731A;
  --green:#12A594;--green-soft:#E4F6F3;--red:#D4685E;--red-soft:#FCEDEB;
  --bg:#F5F8FD;--card:#FFFFFF;--alt:#EDF3FC;--line:#E2EAF6;--line-strong:#CFDCF0;
  --ink:#101B2E;--ink2:#55688A;--ink3:#8695AE;
  --r-lg:16px;--r-md:12px;--r-sm:10px;--r-pill:999px;
  --sh1:0 1px 2px rgba(16,42,80,.05),0 1px 3px rgba(16,42,80,.04);
  --sh2:0 8px 24px -10px rgba(16,42,80,.14),0 2px 6px rgba(16,42,80,.05);
  --sh-hover:0 16px 36px -14px rgba(16,42,80,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,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:1.75;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--c-600);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--c-700);text-decoration:underline}
img{max-width:100%;display:block;border-radius:var(--r-md);background:var(--alt)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(46,107,230,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh1)}
.header-inner{height:72px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand__mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--c-500);color:#fff;box-shadow:var(--sh1)}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__text strong{font-size:16px;font-weight:700;letter-spacing:.2px}
.brand__text em{font-style:normal;font-size:12.5px;color:var(--ink3);letter-spacing:.6px}
.main-nav{margin-left:auto}
.main-nav>ul{display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-item>a,.nav-item>button{display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 12px;border-radius:8px;font-size:15px;color:var(--ink2);text-decoration:none;transition:color .18s var(--ease),background .18s var(--ease);white-space:nowrap}
.nav-item>a:hover,.nav-item>button:hover{color:var(--ink);background:var(--c-50);text-decoration:none}
.nav-item>a::after,.nav-item>button::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:transparent;transition:background .18s var(--ease)}
.nav-item>a:hover::after,.nav-item>button:hover::after{background:var(--c-500)}
.nav-item.is-active>a{color:var(--ink);font-weight:600;background:var(--c-50)}
.nav-item.is-active>a::after{background:var(--c-500)}
.caret{transition:transform .18s var(--ease)}
.nav-item.is-open .caret{transform:rotate(180deg)}
.header-cta{flex:0 0 auto}
.mega-panel{position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(-6px);width:720px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh2);padding:22px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s}
.nav-item.is-open .mega-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px}
.mega-col h4{font-size:12.5px;letter-spacing:.14em;color:var(--ink3);font-weight:600;text-transform:uppercase;margin-bottom:10px}
.mega-col ul{display:flex;flex-direction:column;gap:4px}
.mega-col a{display:block;font-size:14px;color:var(--ink2);padding:6px 8px;border-radius:8px;transition:transform .16s var(--ease),color .16s var(--ease),background .16s var(--ease)}
.mega-col a:hover{color:var(--c-600);background:var(--c-50);transform:translateX(2px);text-decoration:none}
.mega-col .mega-card{display:flex;gap:10px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--alt);margin-top:10px}
.mega-col .mega-card img{width:56px;height:42px;object-fit:cover;border-radius:8px}
.mega-col .mega-card span{font-size:13px;color:var(--ink2);line-height:1.5}
.hamburger{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--ink);background:#fff}
.hamburger:hover{background:var(--c-50);border-color:var(--c-300)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:var(--r-sm);font-size:15px;font-weight:600;text-decoration:none;transition:all .18s var(--ease);border:1px solid transparent}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-500);color:#fff;box-shadow:var(--sh1)}
.btn-primary:hover{background:var(--c-700);color:#fff;box-shadow:var(--sh2)}
.btn-outline{background:#fff;color:var(--c-600);border-color:var(--c-300)}
.btn-outline:hover{background:var(--c-50);color:var(--c-700)}
.btn-amber{background:var(--amber);color:var(--amber-ink);box-shadow:var(--sh1)}
.btn-amber:hover{background:var(--amber-deep);color:#2A1A03;box-shadow:var(--sh2)}
.btn-ghost{color:var(--c-600);font-weight:600;padding:0 4px;min-height:auto}
.btn-ghost:hover{text-decoration:underline}
.btn[disabled],.btn.is-loading{opacity:.62;cursor:not-allowed;transform:none;box-shadow:none}
.btn-icon{width:18px;height:18px;flex:0 0 auto}
.spinner{width:16px;height:16px;border-radius:50%;border:2px solid rgba(255,255,255,.5);border-top-color:#fff;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- banner ---------- */
.page-banner{position:relative;background-image:linear-gradient(96deg,rgba(14,46,107,.96) 0%,rgba(14,46,107,.88) 48%,rgba(20,67,153,.66) 100%),url("/assets/images/backpic/back-3.png");background-size:cover;background-position:center;color:#fff;border-bottom:1px solid var(--c-700)}
.page-banner__inner{padding:56px 0 48px}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:#fff}
.stamp{display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.12);border:1px dashed rgba(255,255,255,.42);font-size:12.5px;letter-spacing:.1em;color:#fff;margin-bottom:16px}
.page-banner h1{font-size:40px;line-height:1.3;font-weight:700;letter-spacing:-.01em;max-width:820px}
.page-banner p.lead{margin-top:16px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.84);max-width:680px}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.banner-actions .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.banner-actions .btn-outline:hover{background:rgba(255,255,255,.14);color:#fff}
.banner-stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:36px;padding-top:24px;border-top:1px solid rgba(255,255,255,.18)}
.banner-stats div{display:flex;flex-direction:column;gap:2px}
.banner-stats strong{font-size:24px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.banner-stats span{font-size:13px;color:rgba(255,255,255,.7)}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section--alt{background:var(--alt)}
.section--tight{padding-top:64px}
.section-head{margin-bottom:40px;max-width:760px}
.section-head .kicker{display:inline-block;font-size:12.5px;letter-spacing:.16em;color:var(--c-600);font-weight:600;margin-bottom:12px}
.section-head h2{position:relative;font-size:28px;line-height:1.3;font-weight:700;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:3px;background:var(--c-500)}
.section-head p{margin-top:14px;color:var(--ink2);font-size:15.5px;line-height:1.8}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}

/* ---------- quick grid ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.quick-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--sh1);transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);overflow:hidden}
.quick-card::before{content:"";position:absolute;inset:0 0 auto 0;height:6px;background:repeating-linear-gradient(135deg,var(--c-500) 0 8px,var(--c-100) 8px 16px)}
.quick-card:hover{transform:translateY(-2px);border-color:var(--c-300);box-shadow:var(--sh-hover)}
.quick-card .num{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--c-50);color:var(--c-700);font-size:13px;font-weight:700;letter-spacing:.02em;margin-bottom:14px;font-variant-numeric:tabular-nums}
.quick-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.quick-card p{font-size:14px;color:var(--ink2);line-height:1.75;min-height:66px}
.quick-card .link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;margin-top:10px}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.faq-group{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:8px 26px;box-shadow:var(--sh1)}
.faq-group__head{display:flex;align-items:center;gap:12px;padding:20px 0 16px;border-bottom:1px dotted var(--line-strong)}
.faq-group__head h3{font-size:18px;font-weight:600}
.faq-group__head .tag{font-size:12.5px;padding:3px 10px;border-radius:var(--r-pill);background:var(--c-50);color:var(--c-700);font-weight:600}
.faq-list{padding-bottom:8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{margin:0}
.faq-q button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:18px 0;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;min-height:44px}
.faq-q button:hover{color:var(--c-700)}
.faq-icon{position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:var(--c-50);border:1px solid var(--line-strong)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-600);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.faq-icon::before{left:6px;right:6px;top:10px;height:2px}
.faq-icon::after{top:6px;bottom:6px;left:10px;width:2px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-item.is-open .faq-icon{background:var(--c-500);border-color:var(--c-500)}
.faq-item.is-open .faq-icon::before{background:#fff}
.faq-item.is-open .faq-icon::after{background:#fff}
.faq-a{display:none;padding:0 0 20px}
.faq-item.is-open .faq-a{display:block;animation:fadeUp .22s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.faq-a p{font-size:15px;color:var(--ink2);line-height:1.8;max-width:60ch}

/* ---------- note band ---------- */
.note-band{display:grid;grid-template-columns:1.15fr 1fr;gap:32px;align-items:stretch}
.note-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh1)}
.note-card h3{font-size:20px;font-weight:600;margin-bottom:12px}
.note-card p{font-size:15px;color:var(--ink2);line-height:1.8;margin-bottom:16px}
.check-list{display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--ink2);line-height:1.7}
.check-list li svg{flex:0 0 auto;margin-top:5px;color:var(--green)}
.notice-card{display:flex;flex-direction:column;gap:16px;background:#fff;border:1px solid var(--line-strong);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh2)}
.notice-card img{width:100%;height:180px;object-fit:cover;border-radius:var(--r-md)}
.notice-card .stamp-inline{align-self:flex-start;font-size:12.5px;padding:4px 12px;border-radius:var(--r-pill);background:var(--amber-soft);color:var(--amber-ink);font-weight:600;letter-spacing:.04em}
.notice-card h4{font-size:17px;font-weight:600}
.notice-card p{font-size:14px;color:var(--ink2);line-height:1.75}

/* ---------- cta / form ---------- */
.cta-layout{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start}
.cta-info h2{position:relative;font-size:28px;font-weight:700;line-height:1.35;padding-left:16px;margin-bottom:16px}
.cta-info h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--c-500)}
.cta-info>p{color:var(--ink2);font-size:15.5px;line-height:1.8;margin-bottom:24px}
.info-rows{display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.info-row{display:flex;justify-content:space-between;gap:16px;padding:14px 18px;background:#fff;font-size:14.5px}
.info-row span:first-child{color:var(--ink2)}
.info-row span:last-child{color:var(--ink);font-weight:600}
.cta-info .tip{margin-top:18px;font-size:13.5px;color:var(--ink3);line-height:1.7}
.cta-form{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;box-shadow:var(--sh2)}
.cta-form h3{font-size:20px;font-weight:600;margin-bottom:6px}
.cta-form .form-sub{font-size:14px;color:var(--ink3);margin-bottom:22px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:var(--ink)}
.field label .req{color:var(--red);margin-left:2px}
.field input,.field select,.field textarea{width:100%;min-height:46px;padding:11px 14px;border:1px solid var(--line-strong);border-radius:var(--r-sm);background:#fff;font-size:15px;color:var(--ink);transition:border-color .18s var(--ease),box-shadow .18s var(--ease)}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--ink3)}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--c-300)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-500);box-shadow:0 0 0 3px rgba(46,107,230,.18)}
.field .hint{font-size:12.5px;color:var(--ink3);margin-top:6px}
.field-error{display:none;font-size:12.5px;color:var(--red);margin-top:6px}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--red);background:var(--red-soft)}
.field.has-error .field-error{display:block}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.check-field{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px}
.check-field input{width:18px;height:18px;min-height:18px;margin-top:3px;accent-color:var(--c-500)}
.check-field label{font-size:13.5px;color:var(--ink2);line-height:1.7;font-weight:400;cursor:pointer}
.check-field.has-error label{color:var(--red)}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-actions .btn{min-width:180px}
.form-status{font-size:13.5px;color:var(--ink3)}
.form-success{display:none;text-align:center;padding:34px 20px;border-radius:var(--r-lg);background:var(--green-soft);border:1px solid rgba(18,165,148,.35)}
.form-success.is-visible{display:block;animation:fadeUp .24s var(--ease)}
.form-success svg{color:var(--green);margin:0 auto 14px}
.form-success h4{font-size:19px;font-weight:600;margin-bottom:8px}
.form-success p{font-size:14.5px;color:var(--ink2);line-height:1.8;max-width:44ch;margin:0 auto 18px}

/* ---------- bottom strip ---------- */
.promise{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.promise-item{background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-md);padding:22px 24px}
.promise-item h4{font-size:16px;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.promise-item h4 svg{color:var(--c-500)}
.promise-item p{font-size:14px;color:var(--ink2);line-height:1.75}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:120;visibility:hidden;pointer-events:none}
.drawer.is-open{visibility:visible;pointer-events:auto}
.drawer__mask{position:absolute;inset:0;background:rgba(14,46,107,.5);opacity:0;transition:opacity .2s var(--ease)}
.drawer.is-open .drawer__mask{opacity:1}
.drawer__panel{position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);background:#fff;box-shadow:var(--sh-hover);transform:translateX(100%);transition:transform .24s var(--ease);display:flex;flex-direction:column;overflow-y:auto}
.drawer.is-open .drawer__panel{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#fff;z-index:2}
.drawer__head strong{font-size:15px}
.drawer__close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--ink)}
.drawer__close:hover{background:var(--c-50)}
.drawer__body{padding:14px 20px 32px}
.drawer__body a.dnav{display:flex;align-items:center;justify-content:space-between;min-height:48px;font-size:15px;color:var(--ink2);border-bottom:1px solid var(--line)}
.drawer__body a.dnav:hover,.drawer__body a.dnav.is-active{color:var(--c-700);font-weight:600;text-decoration:none}
.drawer__body a.dnav.is-active::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--c-500);margin-right:10px}
.drawer__group{margin-top:22px}
.drawer__group h4{font-size:12.5px;letter-spacing:.14em;color:var(--ink3);font-weight:600;margin-bottom:10px}
.drawer__group a{display:block;font-size:14px;color:var(--ink2);padding:7px 0}
.drawer__foot{margin-top:26px}

/* ---------- footer ---------- */
.site-footer{background:var(--c-900);color:rgba(255,255,255,.72);border-top:1px solid rgba(255,255,255,.22);padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand__mark{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:rgba(255,255,255,.12)}
.footer-brand strong{color:#fff;font-size:15.5px;line-height:1.4}
.site-footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px}
.site-footer p{line-height:1.8;font-size:13.5px;max-width:34ch}
.site-footer ul{display:flex;flex-direction:column;gap:10px}
.site-footer a{color:rgba(255,255,255,.72)}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-contact li{color:rgba(255,255,255,.72)}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .mega-panel{width:640px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .hamburger{display:inline-flex}
  .header-cta{display:none}
  .quick-grid{grid-template-columns:1fr 1fr}
  .faq-wrap{grid-template-columns:1fr}
  .note-band{grid-template-columns:1fr}
  .cta-layout{grid-template-columns:1fr}
  .promise{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .header-inner{height:60px;gap:12px}
  .brand__text strong{font-size:14.5px}
  .brand__text em{font-size:11.5px}
  .page-banner__inner{padding:36px 0 34px}
  .page-banner h1{font-size:30px}
  .page-banner p.lead{font-size:15px}
  .banner-stats{gap:20px;margin-top:26px}
  .banner-stats strong{font-size:20px}
  .section{padding:56px 0}
  .section--tight{padding-top:44px}
  .section-head h2{font-size:22px}
  .quick-grid{grid-template-columns:1fr;gap:16px}
  .quick-card p{min-height:auto}
  .faq-group{padding:4px 20px}
  .faq-q button{font-size:15px}
  .cta-form{padding:22px}
  .field-row{grid-template-columns:1fr}
  .cta-info h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:44px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:480px){
  .banner-actions{flex-direction:column;align-items:stretch}
  .banner-actions .btn{width:100%;max-width:360px;margin:0 auto}
  .form-actions .btn{width:100%;max-width:360px}
  .info-row{flex-direction:column;gap:4px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category3 */
:root{
  --blue-50:#EEF4FF;
  --blue-100:#DCE7FF;
  --blue-300:#9CB8F5;
  --blue-500:#2E6BE6;
  --blue-600:#1A57CC;
  --blue-700:#144399;
  --blue-900:#0E2E6B;
  --amber:#F08A24;
  --amber-soft:#FFF3E4;
  --amber-deep:#C96E12;
  --amber-text:#3A2405;
  --teal:#12A594;
  --teal-soft:#E4F6F3;
  --rose:#D4685E;
  --rose-soft:#FBEDEB;
  --page:#F5F8FD;
  --card:#FFFFFF;
  --alt:#EDF3FC;
  --line:#E2EAF6;
  --line-strong:#CFDCF0;
  --ink:#101B2E;
  --ink-2:#55688A;
  --ink-3:#8695AE;
  --r-card:16px;
  --r-sub:12px;
  --r-ctl:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,42,80,.05), 0 1px 3px rgba(16,42,80,.04);
  --sh-2:0 8px 24px -10px rgba(16,42,80,.14), 0 2px 6px rgba(16,42,80,.05);
  --sh-hover:0 16px 36px -14px rgba(16,42,80,.22);
  --ease:180ms ease-out;
  --gap:24px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,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:1.75;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px;}
a{color:var(--blue-600);text-decoration:none;transition:color var(--ease),border-color var(--ease);}
a:hover{color:var(--blue-700);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--ink);}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(46,107,230,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.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;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-ctl);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  text-align:center;
}
.btn--primary{background:var(--blue-500);color:#fff;box-shadow:var(--sh-1);}
.btn--primary:hover{background:var(--blue-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn--ghost{background:#fff;color:var(--blue-600);border-color:var(--line-strong);}
.btn--ghost:hover{background:var(--blue-50);color:var(--blue-700);border-color:var(--blue-300);}
.btn--amber{background:var(--amber);color:var(--amber-text);box-shadow:var(--sh-1);}
.btn--amber:hover{background:var(--amber-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--amber:active{transform:translateY(0);}
.btn[disabled],.btn.is-loading{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none;}
.text-link{font-weight:600;display:inline-flex;align-items:center;gap:6px;min-height:44px;}
.text-link:hover{text-decoration:underline;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:var(--blue-50);color:var(--blue-700);border:1px solid var(--blue-100);
}
.tag--amber{background:var(--amber-soft);color:var(--amber-text);border-color:#F6DCBB;}
.tag--teal{background:var(--teal-soft);color:#0B7A6E;border-color:#C7EBE5;}
.tag--rose{background:var(--rose-soft);color:#9E453D;border-color:#F2D6D2;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand__mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--blue-500);color:#fff;box-shadow:var(--sh-1);flex:0 0 auto;
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__text strong{font-size:16px;font-weight:700;letter-spacing:.01em;}
.brand__text em{font-style:normal;font-size:12.5px;color:var(--ink-3);letter-spacing:.06em;}
.main-nav{margin-left:auto;}
.main-nav > ul{display:flex;align-items:center;gap:4px;}
.nav-item{position:relative;}
.nav-item > a,.nav-item > button{
  display:inline-flex;align-items:center;gap:6px;
  min-height:44px;padding:0 14px;border-radius:8px;border:0;background:transparent;
  color:var(--ink-2);font-size:15px;font-weight:500;
  transition:color var(--ease),background var(--ease);
}
.nav-item > a:hover,.nav-item > button:hover{color:var(--ink);background:var(--blue-50);}
.nav-item.is-active > a{color:var(--ink);font-weight:600;background:var(--blue-50);}
.nav-item.is-active > a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--blue-500);
}
.caret{transition:transform var(--ease);}
.nav-item.is-open .caret{transform:rotate(180deg);}
.header-cta{display:flex;align-items:center;gap:10px;margin-left:12px;}
.header-cta .btn{min-height:44px;padding:0 18px;}
.burger{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line-strong);
  background:#fff;align-items:center;justify-content:center;color:var(--ink);margin-left:auto;
}
.burger:hover{background:var(--blue-50);border-color:var(--blue-300);}

/* mega */
.mega-panel{
  position:absolute;top:calc(100% + 10px);right:0;width:min(760px,86vw);
  background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-2);
  padding:22px;opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity 150ms ease-out,transform 150ms ease-out,visibility 150ms;
}
.nav-item.is-open .mega-panel,.mega-panel:hover{opacity:1;visibility:visible;transform:translateY(0);}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:22px;}
.mega-col h4{
  font-size:12.5px;letter-spacing:.14em;color:var(--ink-3);font-weight:600;margin-bottom:10px;
  text-transform:uppercase;
}
.mega-col ul li{margin-bottom:2px;}
.mega-col ul li a{
  display:block;padding:7px 8px;border-radius:8px;font-size:14px;color:var(--ink-2);
  transition:transform var(--ease),color var(--ease),background var(--ease);
}
.mega-col ul li a:hover{color:var(--blue-600);background:var(--blue-50);transform:translateX(2px);}
.mega-card{
  background:var(--alt);border:1px solid var(--line);border-radius:12px;padding:16px;
}
.mega-card h4{color:var(--blue-700);letter-spacing:.06em;}
.mega-card p{font-size:13.5px;color:var(--ink-2);margin-bottom:12px;}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,27,46,.45);opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(340px,88vw);
  background:#fff;z-index:90;transform:translateX(102%);
  transition:transform 220ms ease-out;display:flex;flex-direction:column;
  border-left:1px solid var(--line);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);}
.drawer-head strong{font-size:15px;}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line-strong);background:#fff;display:grid;place-items:center;}
.drawer-close:hover{background:var(--blue-50);}
.drawer-body{padding:12px 12px 24px;overflow-y:auto;}
.drawer-body a{
  display:block;padding:13px 14px;border-radius:10px;color:var(--ink);font-size:15px;font-weight:500;
}
.drawer-body a:hover{background:var(--blue-50);}
.drawer-body a.is-active{background:var(--blue-50);color:var(--blue-700);font-weight:600;}
.drawer-body .drawer-sub{padding:12px 14px 6px;font-size:12.5px;letter-spacing:.14em;color:var(--ink-3);text-transform:uppercase;}
.drawer-foot{padding:16px 20px 26px;border-top:1px solid var(--line);}

/* ---------- banner ---------- */
.breadcrumb{
  font-size:14px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:20px 0 0;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--blue-600);text-decoration:underline;}
.breadcrumb .sep{color:#B9C6DB;}
.breadcrumb .current{color:var(--ink);font-weight:500;}
.page-banner{
  position:relative;overflow:hidden;border-radius:0 0 24px 24px;
  background:var(--blue-900);
}
.page-banner__bg{
  position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;opacity:.30;
}
.page-banner__veil{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,46,107,.94) 0%,rgba(20,67,153,.86) 46%,rgba(26,87,204,.66) 100%);
}
.page-banner__inner{position:relative;padding:52px 0 56px;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:40px;align-items:center;}
.page-banner__eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  color:#DCE7FF;font-size:12.5px;letter-spacing:.12em;font-weight:600;
}
.page-banner h1{color:#fff;font-size:36px;margin:16px 0 14px;letter-spacing:-.01em;}
.page-banner p{color:rgba(255,255,255,.82);font-size:16px;max-width:36em;}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.page-banner .btn--ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.42);}
.page-banner .btn--ghost:hover{background:rgba(255,255,255,.22);color:#fff;border-color:#fff;}
.banner-metrics{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;
  background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.22);
  border-radius:16px;overflow:hidden;
}
.banner-metrics div{background:rgba(9,30,73,.62);padding:16px 18px;}
.banner-metrics b{display:block;color:#fff;font-size:20px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums;}
.banner-metrics span{display:block;color:rgba(255,255,255,.7);font-size:12.5px;margin-top:4px;}

/* ---------- section base ---------- */
.section{padding:88px 0;}
.section--alt{background:var(--alt);}
.section--tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;
  color:var(--blue-700);font-weight:700;text-transform:uppercase;
}
.section-head .eyebrow::before{content:"";width:3px;height:18px;background:var(--blue-500);border-radius:2px;}
.section-head h2{font-size:28px;margin:12px 0 12px;}
.section-head p{color:var(--ink-2);font-size:16px;max-width:34em;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:26px;width:2px;
  background:linear-gradient(180deg,var(--blue-300),var(--line-strong));border-radius:2px;
}
.tl-item{position:relative;display:grid;grid-template-columns:48px minmax(0,1fr);gap:24px;padding-bottom:36px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:relative;z-index:2;width:48px;height:48px;border-radius:14px;
  background:#fff;border:2px solid var(--blue-300);color:var(--blue-700);
  display:grid;place-items:center;font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;
  box-shadow:var(--sh-1);
}
.tl-item:hover .tl-dot{border-color:var(--blue-500);background:var(--blue-50);}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px 28px;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--blue-300);}
.tl-card__top{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px;}
.tl-card h3{font-size:20px;}
.tl-card p{color:var(--ink-2);font-size:15.5px;max-width:40em;}
.tl-media{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:22px;align-items:start;}
.tl-media img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--alt);box-shadow:var(--sh-1);}
.tl-note{
  display:flex;gap:10px;align-items:flex-start;margin-top:16px;padding:14px 16px;
  background:var(--blue-50);border:1px dashed var(--line-strong);border-radius:12px;
  font-size:14px;color:var(--blue-700);
}
.tl-note svg{flex:0 0 auto;margin-top:3px;}

/* ---------- scenario cards ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);}
.scene-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--blue-300);}
.scene-card .icon{
  width:40px;height:40px;border-radius:12px;background:var(--blue-50);color:var(--blue-600);
  display:grid;place-items:center;margin-bottom:16px;
}
.scene-card h3{font-size:17px;margin-bottom:8px;}
.scene-card p{font-size:14px;color:var(--ink-2);margin:0;}

/* ---------- symptom matrix ---------- */
.symptom-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.symptom{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sub);
  padding:22px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:12px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.symptom:hover{border-color:var(--blue-300);box-shadow:var(--sh-2);}
.symptom-head{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;}
.dot{width:8px;height:8px;border-radius:50%;flex:0 0 auto;}
.dot--teal{background:var(--teal);}
.dot--amber{background:var(--amber);}
.dot--rose{background:var(--rose);}
.symptom dl{margin:0;display:grid;grid-template-columns:68px minmax(0,1fr);gap:6px 12px;}
.symptom dt{font-size:12.5px;color:var(--ink-3);letter-spacing:.04em;}
.symptom dd{margin:0;font-size:14px;color:var(--ink-2);}

/* ---------- evidence ---------- */
.evidence{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.evidence-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
}
.evidence-card .num{
  font-size:32px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums;
  color:var(--blue-700);display:block;margin-bottom:6px;
}
.evidence-card h3{font-size:17px;margin-bottom:8px;}
.evidence-card p{font-size:14px;color:var(--ink-2);margin:0;}
.evidence-card img{width:100%;aspect-ratio:3/2;object-fit:cover;background:var(--alt);margin-bottom:16px;}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;padding:20px 0;display:flex;align-items:center;
  justify-content:space-between;gap:18px;text-align:left;
}
.faq-q:hover h3{color:var(--blue-600);}
.faq-q h3{font-size:17px;font-weight:600;margin:0;transition:color var(--ease);}
.faq-icon{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--line-strong);background:#fff;
  display:grid;place-items:center;flex:0 0 auto;color:var(--blue-600);transition:transform var(--ease),background var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--blue-50);border-color:var(--blue-300);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out;}
.faq-a__inner{padding:0 0 22px;color:var(--ink-2);font-size:15px;max-width:56em;}
.faq-item.is-open .faq-a{max-height:420px;}

/* ---------- cta form ---------- */
.cta-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-2);
  padding:36px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:40px;
}
.cta-points li{
  display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--ink-2);
}
.cta-points li:last-child{border-bottom:0;}
.cta-points svg{flex:0 0 auto;margin-top:4px;color:var(--teal);}
.cta-form .field{margin-bottom:16px;}
.cta-form label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.cta-form input[type="text"],.cta-form input[type="tel"],.cta-form select,.cta-form textarea{
  width:100%;min-height:46px;padding:11px 14px;border:1px solid var(--line-strong);
  border-radius:var(--r-ctl);background:#fff;color:var(--ink);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.cta-form textarea{min-height:96px;resize:vertical;}
.cta-form input:hover,.cta-form select:hover,.cta-form textarea:hover{border-color:var(--blue-300);}
.cta-form input:focus,.cta-form select:focus,.cta-form textarea:focus{
  outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px rgba(46,107,230,.18);
}
.cta-form .field.has-error input,.cta-form .field.has-error select,.cta-form .field.has-error textarea{
  border-color:var(--rose);box-shadow:0 0 0 3px rgba(212,104,94,.14);
}
.field-msg{display:none;font-size:12.5px;color:#9E453D;margin-top:6px;}
.field.has-error .field-msg{display:block;}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--ink-2);}
.check-row input{width:18px;height:18px;margin-top:4px;accent-color:var(--blue-500);}
.cta-form .btn{width:100%;}
.form-success{
  display:none;background:var(--teal-soft);border:1px solid #BFE8E2;border-radius:16px;
  padding:28px;text-align:center;
}
.form-success.is-visible{display:block;}
.form-success h3{font-size:19px;margin-bottom:8px;color:#0B7A6E;}
.form-success p{font-size:14.5px;color:var(--ink-2);}
.spinner{
  width:16px;height:16px;border-radius:50%;border:2px solid rgba(58,36,5,.3);
  border-top-color:var(--amber-text);animation:spin .7s linear infinite;display:inline-block;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- footer ---------- */
.site-footer{background:var(--blue-900);color:rgba(255,255,255,.72);border-top:1px solid rgba(255,255,255,.16);margin-top:8px;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding:56px 0 36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand__mark{width:34px;height:34px;border-radius:10px;background:rgba(255,255,255,.12);display:grid;place-items:center;}
.footer-brand strong{color:#fff;font-size:16px;}
.site-footer h4{color:#fff;font-size:14px;letter-spacing:.08em;margin-bottom:14px;font-weight:600;}
.site-footer p{font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.8;}
.site-footer ul li{margin-bottom:6px;}
.site-footer ul li a{color:rgba(255,255,255,.72);font-size:14px;display:inline-block;padding:3px 0;}
.site-footer ul li a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{font-size:13.5px;color:rgba(255,255,255,.72);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:18px 0 28px;display:flex;flex-wrap:wrap;
  gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .page-banner h1{font-size:32px;}
  .section{padding:76px 0;}
}
@media (max-width:1023px){
  .main-nav,.header-cta{display:none;}
  .burger{display:inline-flex;}
  .header-inner{min-height:60px;}
  .page-banner__inner{grid-template-columns:1fr;gap:28px;padding:40px 0 44px;}
  .page-banner{border-radius:0 0 20px 20px;}
  .page-banner h1{font-size:28px;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .symptom-list,.evidence{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-wrap{grid-template-columns:1fr;gap:28px;padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 28px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .brand__text em{display:none;}
  .brand__text strong{font-size:14.5px;}
  .page-banner h1{font-size:23px;}
  .page-banner p{font-size:15px;}
  .banner-actions .btn{width:100%;}
  .section-head h2{font-size:22px;}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:12px;}
  .tl-item{grid-template-columns:38px minmax(0,1fr);gap:14px;}
  .tl-dot{width:38px;height:38px;border-radius:12px;font-size:13.5px;}
  .timeline::before{left:18px;}
  .tl-card{padding:20px;}
  .tl-card h3{font-size:18px;}
  .tl-media{grid-template-columns:1fr;}
  .tl-media img{aspect-ratio:16/9;}
  .scene-grid,.symptom-list,.evidence{grid-template-columns:1fr;}
  .cta-form .btn{max-width:360px;margin:0 auto;display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:480px){
  .page-banner h1{font-size:21px;}
  .banner-metrics{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}