/* roulang page: index */
:root{
  --c-brand:#6B2BF6;
  --c-brand-2:#8B5CF6;
  --c-brand-soft:#EFE9FF;
  --c-accent:#14E0C8;
  --c-accent-deep:#0B8C7D;
  --c-accent-soft:#DFFBF6;
  --c-promo:#FF8A1E;
  --c-promo-2:#FFB020;
  --c-bg:#F7F5FF;
  --c-surface:#FFFFFF;
  --c-line:#E8E4F5;
  --c-ink:#0E0A1F;
  --c-ink-2:#1A1230;
  --c-text:#171129;
  --c-text-2:#5B5470;
  --c-text-3:#8E88A3;
  --c-ok:#17A673;
  --c-warn:#E8A317;
  --c-err:#E5484D;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(23,17,41,.06);
  --sh-2:0 12px 32px -12px rgba(107,43,246,.18);
  --sh-3:0 24px 56px -20px rgba(107,43,246,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-brand);text-decoration:none;transition:color .18s var(--ease),text-decoration-color .18s var(--ease)}
a:hover{color:#5520cc;text-decoration:underline;text-underline-offset:3px}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(30px,4.6vw,56px);font-weight:900;line-height:1.16;letter-spacing:.01em}
h2{font-size:clamp(24px,2.8vw,36px);font-weight:800;line-height:1.25;letter-spacing:.01em}
h3{font-size:20px;font-weight:700;line-height:1.4}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-brand);color:#fff;padding:10px 16px;border-radius:0 0 12px 0;z-index:999}
.skip-link:focus{left:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.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:700;line-height:1;
  border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--sh-3);color:#fff;text-decoration:none}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-promo{background:linear-gradient(135deg,var(--c-promo),var(--c-promo-2));color:#3a1a00;box-shadow:0 12px 28px -14px rgba(255,138,30,.65)}
.btn-promo:hover{filter:brightness(1.06);transform:translateY(-1px);color:#3a1a00;text-decoration:none}
.btn-promo:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-brand-soft);transform:translateY(-1px);text-decoration:none}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.35);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.16);color:#fff;text-decoration:none;transform:translateY(-1px)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none!important;filter:none!important}
.btn.is-loading{position:relative;color:transparent!important}
.btn.is-loading::after{
  content:"";position:absolute;right:18px;top:50%;width:16px;height:16px;margin-top:-8px;
  border:2px solid rgba(255,255,255,.5);border-top-color:#fff;border-radius:50%;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;font-size:14px;font-weight:600;line-height:1}
.badge-cat{background:var(--c-brand-soft);color:var(--c-brand)}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent-deep)}
.badge-promo{background:linear-gradient(135deg,var(--c-promo),var(--c-promo-2));color:#3a1a00}
.badge-clip{clip-path:polygon(0 0,100% 0,100% 70%,82% 100%,0 100%)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(23,17,41,.35);background:rgba(255,255,255,.92)}
.nav-inner{
  display:flex;align-items:center;gap:20px;
  height:64px;transition:height .2s var(--ease);
}
.site-header.is-scrolled .nav-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:17px;color:var(--c-text);letter-spacing:.01em;flex:0 0 auto}
.brand:hover{text-decoration:none;color:var(--c-text)}
.brand-mark{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  clip-path:polygon(0 0,100% 0,100% 72%,74% 100%,0 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;font-weight:900;
  box-shadow:var(--sh-2);
}
.brand-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:8px;flex:1 1 auto}
.nav-link{
  position:relative;font-size:14px;font-weight:600;color:var(--c-text-2);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;border-radius:2px;
  background:var(--c-brand);transition:width .2s var(--ease);
}
.nav-link:hover{color:var(--c-brand);text-decoration:none}
.nav-link:hover::after,.nav-link.active::after{width:18px}
.nav-link.active{color:var(--c-text)}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.cmd-search{
  position:relative;display:flex;align-items:center;
  width:260px;height:40px;padding:0 10px 0 34px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);
  transition:width .22s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.cmd-search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--c-text-3);fill:none;stroke-width:2}
.cmd-search input{width:100%;border:0;background:none;font-size:14px;outline:none}
.cmd-search input::placeholder{color:var(--c-text-3)}
.cmd-search:focus-within{width:320px;border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(107,43,246,.14)}
.kbd{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-size:11px;color:var(--c-text-3);border:1px solid var(--c-line);
  border-radius:6px;padding:1px 6px;background:#faf9ff;
}
.nav-quick{font-size:14px;font-weight:600;color:var(--c-text-2)}
.nav-quick:hover{color:var(--c-brand);text-decoration:none}
.burger{display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:var(--r-sm);align-items:center;justify-content:center;background:#fff}
.burger span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.mobile-only-icon{display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:var(--r-sm);align-items:center;justify-content:center;background:#fff}
.mobile-only-icon svg{width:18px;height:18px;stroke:var(--c-text);fill:none;stroke-width:2}

.drawer-mask{position:fixed;inset:0;background:rgba(14,10,31,.5);opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s;z-index:130}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,340px);z-index:140;
  background:#fff;transform:translateX(102%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;padding:18px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--c-text-2)}
.drawer-search{display:flex;align-items:center;height:44px;border:1px solid var(--c-line);border-radius:var(--r-sm);padding:0 12px;margin-bottom:14px;background:#faf9ff}
.drawer-search input{border:0;background:none;outline:none;width:100%;font-size:14px}
.drawer-nav a{display:flex;align-items:center;height:44px;font-size:15px;font-weight:600;color:var(--c-text);border-bottom:1px solid var(--c-line)}
.drawer-nav a.active{color:var(--c-brand)}
.drawer-foot{margin-top:auto;padding-top:18px;display:flex;flex-direction:column;gap:10px}
.drawer-foot .tel{font-size:14px;color:var(--c-text-2)}

/* ---------- Hero ---------- */
.sec-hero{
  position:relative;overflow:hidden;color:#fff;
  background:radial-gradient(120% 130% at 82% 8%,rgba(107,43,246,.55) 0%,rgba(14,10,31,0) 58%),linear-gradient(160deg,var(--c-ink) 0%,var(--c-ink-2) 62%,#221741 100%);
  padding:76px 0 64px;
}
.sec-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:48px 48px;opacity:.55;pointer-events:none;
}
.sec-hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,224,200,.28),rgba(20,224,200,0) 66%);pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px}
.hero-eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(20,224,200,.18)}
.hero-eyebrow span{font-size:13px;font-weight:600;color:rgba(255,255,255,.78);letter-spacing:.02em}
.sec-hero h1{color:#fff;margin-bottom:16px}
.sec-hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--c-accent),#7DE9FF);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:rgba(255,255,255,.76);max-width:520px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-media{position:relative}
.hero-media .frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 40px 80px -40px rgba(0,0,0,.8);
  aspect-ratio:16/10;background:#1c1533;
}
.hero-media .frame img{width:100%;height:100%;object-fit:cover}
.hero-media .float-card{
  position:absolute;left:-18px;bottom:-20px;background:#fff;color:var(--c-text);
  border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-3);min-width:180px;
}
.hero-media .float-card b{display:block;font-size:20px;font-weight:900;color:var(--c-brand)}
.hero-media .float-card small{font-size:12px;color:var(--c-text-3)}
.stat-row{
  position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  margin-top:48px;padding-top:28px;border-top:1px solid rgba(255,255,255,.12);
}
.stat b{display:block;font-size:clamp(20px,2.4vw,28px);font-weight:900;color:#fff;font-variant-numeric:tabular-nums}
.stat span{font-size:13px;color:rgba(255,255,255,.62)}

/* ---------- 通用板块 ---------- */
.sec{padding:96px 0}
.sec-tight{padding:64px 0}
.sec-alt{background:#fff}
.sec-dark{background:linear-gradient(165deg,var(--c-ink) 0%,var(--c-ink-2) 100%);color:#fff}
.sec-dark h2,.sec-dark h3{color:#fff}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head .lead{max-width:660px}
.sec-kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-brand);text-transform:uppercase;margin-bottom:10px}
.sec-dark .sec-kicker{color:var(--c-accent)}
.sec-sub{margin-top:12px;font-size:16px;color:var(--c-text-2);max-width:720px}
.sec-dark .sec-sub{color:rgba(255,255,255,.7)}
.sec-more{font-size:14px;font-weight:700;color:var(--c-brand);white-space:nowrap}
.sec-more:hover{text-decoration:underline;text-underline-offset:4px}
.sec-dark .sec-more{color:var(--c-accent)}

/* ---------- 优惠阶梯 ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-bottom:40px}
.card-tier{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:26px 22px 24px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card-tier:nth-child(1){margin-bottom:0}
.card-tier:nth-child(2){margin-bottom:12px}
.card-tier:nth-child(3){margin-bottom:24px}
.card-tier:nth-child(4){margin-bottom:36px}
.card-tier:hover{transform:translateY(-3px);border-color:rgba(107,43,246,.3);box-shadow:var(--sh-2)}
.card-tier.is-feature{border:2px solid var(--c-brand);box-shadow:var(--sh-3)}
.tier-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.tier-no{font-size:13px;font-weight:800;color:var(--c-text-3);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.tier-flag{
  position:absolute;top:-1px;right:18px;padding:5px 12px 7px;font-size:12px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  clip-path:polygon(0 0,100% 0,100% 100%,50% 78%,0 100%);
}
.card-tier h3{margin-bottom:8px}
.tier-cond{font-size:13px;color:var(--c-text-3);padding-bottom:14px;border-bottom:1px dashed var(--c-line);margin-bottom:16px}
.tier-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px;flex:1}
.tier-list li{position:relative;padding-left:24px;font-size:14px;color:var(--c-text-2);line-height:1.65}
.tier-list li::before{
  content:"";position:absolute;left:0;top:6px;width:14px;height:14px;border-radius:4px;
  background:var(--c-brand-soft);
}
.tier-list li::after{
  content:"";position:absolute;left:4px;top:10px;width:6px;height:3px;
  border-left:2px solid var(--c-brand);border-bottom:2px solid var(--c-brand);transform:rotate(-45deg);
}
.card-tier.is-feature .tier-list li::before{background:#E4DAFF}

/* ---------- 套餐对比 ---------- */
.tbl-wrap{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
}
.tbl-plan{width:100%;border-collapse:collapse;font-size:15px}
.tbl-plan th,.tbl-plan td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--c-line)}
.tbl-plan thead th{
  position:sticky;top:64px;z-index:5;background:#fbfaff;font-size:14px;font-weight:800;color:var(--c-text);
}
.tbl-plan thead th:first-child{left:0;z-index:6}
.tbl-plan tbody th{
  position:sticky;left:0;background:#fbfaff;font-weight:600;font-size:14px;color:var(--c-text-2);z-index:4;min-width:160px;
}
.tbl-plan td{color:var(--c-text-2);font-size:14px}
.tbl-plan .col-feature{background:var(--c-brand-soft)}
.tbl-plan thead .col-feature{background:#E6DCFF}
.tbl-plan tbody tr:last-child th,.tbl-plan tbody tr:last-child td{border-bottom:0}
.tbl-plan tr.group th{
  background:var(--c-bg);font-weight:800;color:var(--c-text);font-size:13px;letter-spacing:.04em;
}
.mark-yes,.mark-no{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;font-size:12px;font-weight:900}
.mark-yes{background:rgba(23,166,115,.14);color:var(--c-ok)}
.mark-no{background:rgba(142,136,163,.16);color:var(--c-text-3)}
.tbl-mobile{display:none;flex-direction:column;gap:16px}
.plan-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1)}
.plan-card.is-feature{border:2px solid var(--c-brand)}
.plan-card h3{margin-bottom:6px}
.plan-card .price-note{font-size:13px;color:var(--c-text-3);margin-bottom:14px}
.plan-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--c-line);font-size:14px}
.plan-row:last-child{border-bottom:0}
.plan-row span:first-child{color:var(--c-text-2)}

/* ---------- 倒计时 ---------- */
.countdown-band{
  color:#fff;border-radius:var(--r-lg);overflow:hidden;
  background:linear-gradient(115deg,var(--c-brand) 0%,#7B33FF 46%,var(--c-promo) 100%);
  box-shadow:var(--sh-3);
}
.cd-inner{display:flex;align-items:center;gap:32px;padding:32px 36px;flex-wrap:wrap}
.cd-text{flex:1 1 260px;min-width:240px}
.cd-text h2{font-size:clamp(20px,2.4vw,28px);color:#fff;margin-bottom:6px}
.cd-text p{font-size:14px;color:rgba(255,255,255,.86)}
.cd-clock{display:flex;align-items:center;gap:8px}
.cd-num{
  min-width:64px;height:56px;border-radius:var(--r-sm);background:rgba(14,10,31,.72);
  display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;
  font-variant-numeric:tabular-nums;
}
.cd-num b{font-size:22px;font-weight:900;line-height:1.1}
.cd-num small{font-size:11px;color:rgba(255,255,255,.6)}
.cd-sep{font-size:20px;font-weight:900;color:rgba(255,255,255,.7)}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.form-panel{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:28px;box-shadow:var(--sh-1)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--c-text)}
.field .req{color:var(--c-err)}
.input,.select,.textarea{
  width:100%;height:46px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  padding:0 14px;background:#fff;outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.textarea{height:auto;min-height:120px;padding:12px 14px;resize:vertical;line-height:1.7}
.input:focus,.select:focus,.textarea:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(107,43,246,.14)}
.field.has-error .input,.field.has-error .select,.field.has-error .textarea{border-color:var(--c-err);box-shadow:0 0 0 3px rgba(229,72,77,.12)}
.field .err-msg{display:none;margin-top:6px;font-size:12px;color:var(--c-err)}
.field.has-error .err-msg{display:block}
.checkbox-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-text-2);line-height:1.6}
.checkbox-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--c-brand);flex:0 0 auto}
.form-alert{
  display:none;margin-bottom:18px;padding:12px 14px;border-radius:var(--r-sm);font-size:14px;font-weight:600;
}
.form-alert.ok{display:block;background:rgba(23,166,115,.12);color:#0f7a55;border:1px solid rgba(23,166,115,.28)}
.form-alert.bad{display:block;background:rgba(229,72,77,.1);color:#a5252a;border:1px solid rgba(229,72,77,.26)}
.contact-card{background:linear-gradient(160deg,var(--c-ink) 0%,var(--c-ink-2) 100%);color:#fff;border-radius:var(--r-md);padding:28px;box-shadow:var(--sh-2)}
.contact-card h3{color:#fff;margin-bottom:16px}
.contact-item{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.contact-item:last-child{border-bottom:0}
.contact-item .ci-icon{
  width:36px;height:36px;flex:0 0 auto;border-radius:10px;background:rgba(20,224,200,.14);
  display:flex;align-items:center;justify-content:center;color:var(--c-accent);font-size:15px;font-weight:800;
}
.contact-item b{display:block;font-size:15px;font-weight:700}
.contact-item span{font-size:13px;color:rgba(255,255,255,.66)}

/* ---------- 资讯卡片（CMS） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:rgba(107,43,246,.3);box-shadow:var(--sh-2)}
.news-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--c-line)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-thumb .badge{position:absolute;left:12px;top:12px}
.news-thumb.is-fallback{background:linear-gradient(135deg,#ece7fb,#f6f3ff)}
.news-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.news-title{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:8px}
.news-title a{color:var(--c-text)}
.news-title a:hover{color:var(--c-brand);text-decoration:none}
.news-desc{
  font-size:14px;color:var(--c-text-2);line-height:1.7;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3)}
.news-meta .arrow{color:var(--c-brand);font-weight:800;transition:transform .2s var(--ease)}
.news-card:hover .news-meta .arrow{transform:translateX(3px)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-md);
}
.empty-state .es-icon{width:48px;height:48px;margin:0 auto 14px;border-radius:14px;background:var(--c-brand-soft);display:flex;align-items:center;justify-content:center;color:var(--c-brand);font-size:22px;font-weight:900}
.empty-state p{font-size:14px;color:var(--c-text-3);margin-bottom:16px}

/* ---------- FAQ ---------- */
.faq-list{max-width:840px;margin:0 auto;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1)}
.faq-item + .faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:18px;font-weight:600;color:var(--c-text);background:none;
  transition:background-color .18s var(--ease);
}
.faq-q:hover{background:#fbfaff}
.faq-q .plus{
  width:24px;height:24px;flex:0 0 auto;position:relative;
  transition:transform .22s var(--ease),color .22s var(--ease);color:var(--c-text-3);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:14px;height:2px}
.faq-q .plus::after{width:2px;height:14px}
.faq-item.open .faq-q{color:var(--c-brand)}
.faq-item.open .faq-q .plus{transform:rotate(45deg);color:var(--c-brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
.faq-a .inner{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--c-text-2)}

/* ---------- CTA 收尾 ---------- */
.sec-cta{padding:0 0 96px}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(150deg,var(--c-ink) 0%,#241640 58%,#33186b 100%);
  color:#fff;padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-3);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:40px 40px;pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.74);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff;font-weight:900;font-size:17px}
.footer-brand .brand-mark{box-shadow:none}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.58);max-width:320px}
.site-footer h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.03em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-links a:hover{color:#fff;text-decoration:none}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.66);margin-bottom:10px}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:960px}
  .nav-links{gap:16px}
  .cmd-search{width:200px}
  .cmd-search:focus-within{width:240px}
}
@media (max-width:1023px){
  .container{max-width:720px}
  .nav-links,.nav-quick{display:none}
  .cmd-search{display:none}
  .burger,.mobile-only-icon{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media .frame{aspect-ratio:16/9}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:20px}
  .tier-grid{grid-template-columns:repeat(2,1fr);padding-bottom:0}
  .card-tier{margin-bottom:0!important}
  .form-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .sec{padding:64px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px}
  .tbl-wrap{display:none}
  .tbl-mobile{display:flex}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 28px}
}
@media (max-width:767px){
  .container{max-width:100%;padding:0 16px}
  .sec{padding:56px 0}
  .sec-hero{padding:52px 0 48px}
  .hero-media .float-card{left:12px;bottom:-16px}
  .hero-actions .btn{width:100%;height:48px}
  .tier-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .cd-inner{padding:24px 20px;gap:20px}
  .cd-num{min-width:56px;height:52px}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .form-panel{padding:20px}
  .faq-q{font-size:16px;padding:16px}
  .faq-a .inner{padding:0 16px 18px}
  .site-footer{padding:48px 0 0}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .stat-row{grid-template-columns:1fr 1fr}
  .sec-head h2{font-size:24px}
  .cd-clock{width:100%}
}

/* roulang page: article */
:root{
  --c-brand:#6B2BF6;
  --c-brand-2:#8B5CF6;
  --c-brand-soft:#EFE9FF;
  --c-accent:#14E0C8;
  --c-accent-deep:#0B7F72;
  --c-accent-soft:#DEFBF6;
  --c-promo:#FF8A1E;
  --c-promo-2:#FFB020;
  --c-bg:#F7F5FF;
  --c-surface:#FFFFFF;
  --c-line:#E8E4F5;
  --c-ink:#0E0A1F;
  --c-ink-2:#1A1230;
  --c-text:#171129;
  --c-text-2:#5B5470;
  --c-text-3:#8E88A3;
  --ok:#17A673;
  --warn:#E8A317;
  --err:#E5484D;
  --r-sm:8px;
  --r:12px;
  --r-md:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(23,17,41,.06);
  --sh-2:0 12px 32px -12px rgba(107,43,246,.18);
  --sh-3:0 24px 56px -20px rgba(107,43,246,.28);
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",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(--c-text);background:var(--c-bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--c-brand);text-decoration:none;text-underline-offset:3px;transition:color .18s ease,border-color .18s ease}
a:hover{color:#4C16C9;text-decoration:underline}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:.01em}
p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sec{padding:96px 0}
.sec-head{margin-bottom:40px;max-width:720px}
.sec-head h2{font-size:clamp(24px,2.8vw,36px);font-weight:800;color:var(--c-text)}
.sec-head p{margin-top:12px;color:var(--c-text-2);font-size:15px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-brand);background:var(--c-brand-soft);padding:5px 12px;border-radius:999px;margin-bottom:16px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--c-line);transition:height .2s ease,box-shadow .2s ease,background .2s ease}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height .2s ease}
.site-header.is-scrolled{box-shadow:var(--sh-2);background:rgba(255,255,255,.96)}
.site-header.is-scrolled .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-text);font-weight:800;font-size:16px}
.brand:hover{text-decoration:none;color:var(--c-text)}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));color:#fff;font-size:12px;font-weight:800;letter-spacing:.02em;clip-path:polygon(0 0,78% 0,100% 22%,100% 100%,0 100%)}
.brand-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto}
.nav-link{position:relative;display:inline-block;padding:8px 12px;font-size:14px;font-weight:500;color:var(--c-text-2);border-radius:8px;white-space:nowrap}
.nav-link:hover{color:var(--c-text);background:var(--c-brand-soft);text-decoration:none}
.nav-link.active{color:var(--c-brand);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:12px;bottom:2px;width:18px;height:2px;border-radius:2px;background:var(--c-brand)}
.header-tools{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto}
.cmd-search{position:relative;display:flex;align-items:center;width:260px;height:40px;padding:0 10px;gap:8px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r);transition:width .2s ease,box-shadow .2s ease,border-color .2s ease}
.cmd-search:focus-within{width:320px;border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(107,43,246,.16)}
.cmd-search svg{flex:0 0 auto;width:16px;height:16px;color:var(--c-text-3)}
.cmd-search input{flex:1 1 auto;min-width:0;border:0;outline:none;background:transparent;font-size:14px}
.cmd-search input::placeholder{color:var(--c-text-3)}
.kbd{flex:0 0 auto;font-size:11px;font-weight:600;color:var(--c-text-3);border:1px solid var(--c-line);border-bottom-width:2px;border-radius:6px;padding:1px 5px;background:#FBFAFF}
.tool-link{font-size:14px;font-weight:500;color:var(--c-text-2);white-space:nowrap}
.tool-link:hover{color:var(--c-brand);text-decoration:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--r);font-size:15px;font-weight:600;padding:0 22px;height:46px;cursor:pointer;transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,background-color .18s ease,color .18s ease,filter .18s ease;text-decoration:none}
.btn:hover{text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--sh-3);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.btn-outline{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-outline:hover{background:var(--c-brand-soft);color:var(--c-brand);transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.nav-burger{display:none;width:40px;height:40px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r);align-items:center;justify-content:center}
.nav-burger span{display:block;width:16px;height:2px;background:var(--c-text);border-radius:2px;position:relative}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--c-text);border-radius:2px}
.nav-burger span::before{top:-5px}
.nav-burger span::after{top:5px}
.drawer-mask{position:fixed;inset:0;background:rgba(14,10,31,.44);opacity:0;visibility:hidden;transition:opacity .2s ease;z-index:70}
.drawer-mask.open{opacity:1;visibility:visible}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:#fff;z-index:80;transform:translateX(102%);transition:transform .26s cubic-bezier(.2,.7,.3,1);padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto}
.nav-drawer.open{transform:translateX(0)}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;border:1px solid var(--c-line);border-radius:var(--r)}
.drawer-search input{border:0;outline:none;flex:1 1 auto;font-size:14px;background:transparent}
.drawer-links{display:flex;flex-direction:column;border-top:1px solid var(--c-line)}
.drawer-links a{height:44px;display:flex;align-items:center;font-size:15px;color:var(--c-text);border-bottom:1px solid var(--c-line)}
.drawer-links a:hover{color:var(--c-brand);text-decoration:none}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.drawer-foot p{font-size:13px;color:var(--c-text-3)}

/* ---------- article head ---------- */
.sec-posthead{background:linear-gradient(180deg,#F3EFFF 0%,var(--c-bg) 100%);border-bottom:1px solid var(--c-line);padding:40px 0 44px;position:relative;overflow:hidden}
.sec-posthead::after{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(107,43,246,.16),rgba(107,43,246,0) 68%)}
.posthead-inner{position:relative;z-index:1;max-width:900px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb span{color:var(--c-text-3)}
.posthead-inner h1{font-size:clamp(28px,3.6vw,46px);font-weight:900;color:var(--c-text);margin-bottom:18px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-text-2);font-variant-numeric:tabular-nums}
.meta-row .sep{color:var(--c-line)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;font-size:13px;font-weight:600;background:var(--c-brand-soft);color:var(--c-brand)}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent-deep)}
.badge-promo{background:#FFF1E0;color:#B8560A}

/* ---------- article layout ---------- */
.sec-article{padding:64px 0 88px}
.post-layout{display:grid;grid-template-columns:minmax(0,780px) 220px;gap:48px;justify-content:center;align-items:start}
.post-main{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:40px;box-shadow:var(--sh-1)}
.article-body{font-size:17px;line-height:1.9;color:var(--c-text);overflow-wrap:break-word}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:24px;font-weight:800;margin:2em 0 .8em;padding-left:12px;border-left:4px solid var(--c-brand);color:var(--c-text)}
.article-body h3{font-size:19px;font-weight:700;margin:1.6em 0 .6em;color:var(--c-text)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.2em}
.article-body li{margin-bottom:.5em;position:relative}
.article-body ul li{list-style:none}
.article-body ul li::before{content:"";position:absolute;left:-1.1em;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--c-brand);opacity:.75}
.article-body ol li{list-style:decimal}
.article-body blockquote{margin:1.4em 0;padding:16px 20px;border-left:3px solid var(--c-brand);background:var(--c-brand-soft);border-radius:var(--r-sm);color:var(--c-text-2);font-size:16px}
.article-body img{border-radius:var(--r);margin:1.4em 0 .6em}
.article-body figure{margin:0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-text-3);margin-bottom:1.4em}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-body th{background:#FAF8FF;font-weight:700}
.article-body tbody tr:nth-child(even){background:#FCFBFF}
.article-body a{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px}
.article-body code{background:#F3F0FF;border-radius:6px;padding:2px 6px;font-size:15px}
.post-toc{position:sticky;top:96px;border:1px solid var(--c-line);background:var(--c-surface);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1)}
.post-toc h4{font-size:13px;font-weight:700;color:var(--c-text-3);letter-spacing:.08em;margin-bottom:12px;text-transform:uppercase}
.post-toc a{display:block;font-size:14px;color:var(--c-text-2);padding:6px 0 6px 10px;border-left:2px solid transparent;line-height:1.5}
.post-toc a:hover{color:var(--c-brand);border-left-color:var(--c-brand);text-decoration:none}
.tagline{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--c-line)}
.tagline strong{font-size:13px;color:var(--c-text-3);font-weight:600}
.empty-state{text-align:center;padding:56px 24px}
.empty-state svg{width:48px;height:48px;color:var(--c-brand-2);opacity:.6;margin:0 auto 16px}
.empty-state p{font-size:14px;color:var(--c-text-3);margin-bottom:18px}

/* ---------- related ---------- */
.sec-related{padding:0 0 88px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-post{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;display:flex;flex-direction:column}
.card-post:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(107,43,246,.3)}
.post-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#F1EEFB}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card-post:hover .post-thumb img{transform:scale(1.03)}
.img-fallback{background:#EFEDF7}
.post-thumb .badge{position:absolute;left:12px;top:12px}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.post-body h3{font-size:17px;font-weight:700;line-height:1.45}
.post-body h3 a{color:var(--c-text)}
.post-body h3 a:hover{color:var(--c-brand);text-decoration:none}
.post-body p{font-size:14px;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;padding-top:10px;border-top:1px solid var(--c-line)}
.post-foot .arrow{color:var(--c-brand);font-weight:700}

/* ---------- faq ---------- */
.sec-faq{padding:88px 0}
.faq-list{max-width:840px;margin:0 auto;border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;background:none;border:0;padding:22px 0;font-size:18px;font-weight:600;color:var(--c-text)}
.faq-q:hover{color:var(--c-brand)}
.faq-icon{flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .22s ease,color .22s ease;color:var(--c-text-3)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--c-brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a p{padding:0 0 22px;font-size:15px;line-height:1.8;color:var(--c-text-2)}

/* ---------- cta ---------- */
.sec-cta{padding:0 0 96px}
.cta-band{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;background:linear-gradient(120deg,var(--c-brand),var(--c-brand-2));border-radius:var(--r-lg);padding:40px;color:#fff;box-shadow:var(--sh-3);position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.12)}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;color:#fff;position:relative;z-index:1}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.86);position:relative;z-index:1}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}
.cta-actions .btn-primary{background:#fff;color:var(--c-brand);box-shadow:0 10px 24px -12px rgba(0,0,0,.45)}
.cta-actions .btn-primary:hover{color:var(--c-brand);filter:none;background:#F6F3FF}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.74);padding:72px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;margin-bottom:16px}
.footer-brand .brand-mark{width:32px;height:32px;font-size:11px}
.site-footer p{line-height:1.8;color:rgba(255,255,255,.66)}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px}
.footer-links a:hover{color:#fff;text-decoration:none}
.footer-contact{display:flex;flex-direction:column;gap:10px;color:rgba(255,255,255,.7)}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55)}

@media (max-width:1279px){
  .container{max-width:960px}
  .post-layout{grid-template-columns:minmax(0,780px);gap:0}
  .post-toc{display:none}
}
@media (max-width:1023px){
  .container{max-width:720px}
  .sec{padding:72px 0}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-links,.cmd-search,.tool-link{display:none}
  .nav-burger{display:flex}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .sec{padding:56px 0}
  .sec-article{padding:40px 0 64px}
  .post-main{padding:22px;border-radius:var(--r)}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px}
  .grid-3{grid-template-columns:1fr}
  .btn{width:100%;height:48px}
  .cta-actions{width:100%}
  .cta-band{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .header-tools{gap:8px}
}
@media (max-width:520px){
  .posthead-inner h1{font-size:26px}
  .meta-row{font-size:12px}
  .post-foot{font-size:12px}
}

/* roulang page: category1 */
:root{
  --c-brand:#6B2BF6;
  --c-brand-2:#8B5CF6;
  --c-brand-soft:#EFE9FF;
  --c-accent:#14E0C8;
  --c-accent-soft:#E4FBF7;
  --c-accent-ink:#0B7A6C;
  --c-promo:#FF8A1E;
  --c-promo-2:#FFB020;
  --c-bg:#F7F5FF;
  --c-surface:#FFFFFF;
  --c-line:#E8E4F5;
  --c-ink:#0E0A1F;
  --c-ink-2:#1A1230;
  --c-text:#171129;
  --c-text-2:#5B5470;
  --c-text-3:#8E88A3;
  --c-ok:#17A673;
  --c-warn:#E8A317;
  --c-err:#E5484D;
  --r-sm:10px;
  --r:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(23,17,41,.06);
  --sh-2:0 12px 32px -12px rgba(107,43,246,.18);
  --sh-3:0 24px 56px -20px rgba(107,43,246,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-brand);text-decoration:none;text-underline-offset:3px;transition:color .18s var(--ease)}
a:hover{color:var(--c-brand-2);text-decoration:underline}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.01em}
h1{font-size:clamp(30px,4.6vw,56px);font-weight:900}
h2{font-size:clamp(24px,2.8vw,36px);font-weight:800}
h3{font-size:20px;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;text-decoration:none;cursor:pointer;
  transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{background:var(--c-brand-2);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-primary[disabled],.btn-primary.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-brand-soft);color:var(--c-brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.28);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.2);color:#fff}
.btn-promo{background:linear-gradient(135deg,var(--c-promo),var(--c-promo-2));color:#341700;font-weight:700}
.btn-promo:hover{color:#341700;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 32px -14px rgba(255,138,30,.6)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn .spin{
  width:16px;height:16px;border-radius:50%;border:2px solid rgba(255,255,255,.45);
  border-top-color:#fff;animation:spin .8s linear infinite;display:none
}
.btn.is-loading .spin{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;background:var(--c-brand-soft);color:var(--c-brand);
}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent-ink)}
.tag-plain{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-pill);
  font-size:13px;color:var(--c-text-2);border:1px solid var(--c-line);background:#fff;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--c-line);transition:box-shadow .2s var(--ease);
}
.site-header.scrolled{box-shadow:var(--sh-2)}
.header-inner{
  display:flex;align-items:center;gap:28px;height:64px;transition:height .2s var(--ease)
}
.site-header.scrolled .header-inner{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand-mark{
  width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));color:#fff;
  font-size:13px;font-weight:800;letter-spacing:.02em;
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
}
.brand-name{font-size:16px;font-weight:800;color:var(--c-text);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;flex:1}
.nav-link{
  position:relative;font-size:14px;color:var(--c-text-2);text-decoration:none;padding:20px 0;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:12px;width:0;height:2px;border-radius:2px;
  background:var(--c-brand);transform:translateX(-50%);transition:width .22s var(--ease)
}
.nav-link:hover{color:var(--c-text);text-decoration:none}
.nav-link:hover::after{width:18px;background:var(--c-line)}
.nav-link.active{color:var(--c-brand);font-weight:600}
.nav-link.active::after{width:18px;background:var(--c-brand)}
.header-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.command-search{
  display:flex;align-items:center;gap:8px;width:260px;height:40px;padding:0 10px 0 12px;
  background:#fff;border:1px solid var(--c-line);border-radius:12px;
  transition:width .22s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease)
}
.command-search:focus-within{width:320px;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(107,43,246,.16)}
.command-search svg{flex-shrink:0;color:var(--c-text-3)}
.command-search input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px;height:100%
}
.command-search input::placeholder{color:var(--c-text-3)}
.cmd-kbd{
  flex-shrink:0;font-size:11px;color:var(--c-text-3);background:var(--c-bg);
  border:1px solid var(--c-line);border-radius:6px;padding:2px 6px;line-height:1.4
}
.quick-link{font-size:14px;color:var(--c-text-2);white-space:nowrap}
.quick-link:hover{color:var(--c-brand);text-decoration:none}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  align-items:center;justify-content:center;background:#fff
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--c-text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--c-text);border-radius:2px
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.search-icon-btn{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  align-items:center;justify-content:center;background:#fff;color:var(--c-text-2)
}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,10,31,.45);opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:90
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);background:#fff;z-index:100;
  transform:translateX(102%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;padding:20px;gap:18px;box-shadow:var(--sh-3)
}
.drawer.open{transform:translateX(0)}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;border:1px solid var(--c-line);border-radius:12px;background:var(--c-bg)}
.drawer-search input{flex:1;min-width:0;border:0;background:transparent;outline:0;font-size:14px}
.drawer-nav{display:flex;flex-direction:column;flex:1}
.drawer-nav a{
  display:flex;align-items:center;height:44px;font-size:15px;color:var(--c-text);
  border-bottom:1px solid var(--c-line);text-decoration:none
}
.drawer-nav a:hover{color:var(--c-brand);text-decoration:none}
.drawer-nav a.active{color:var(--c-brand);font-weight:700}
.drawer-foot{border-top:1px solid var(--c-line);padding-top:16px;display:flex;flex-direction:column;gap:10px}
.drawer-foot .meta{font-size:13px;color:var(--c-text-3)}

/* ============ 页头 ============ */
.page-head{
  position:relative;overflow:hidden;color:#fff;padding:72px 0 64px;
  background:
    radial-gradient(680px 340px at 82% 8%, rgba(107,43,246,.55), transparent 65%),
    linear-gradient(160deg,var(--c-ink) 0%,var(--c-ink-2) 100%);
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:48px 48px;opacity:.55;pointer-events:none
}
.page-head::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,224,200,.32),transparent 68%);pointer-events:none
}
.page-head .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .crumb-current{color:#fff;font-weight:600}
.page-head h1{max-width:900px;color:#fff}
.page-head-sub{max-width:660px;margin-top:18px;font-size:17px;color:rgba(255,255,255,.76)}
.page-head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.page-head-tags .badge{background:rgba(255,255,255,.12);color:#fff}
.page-head-tags .badge-accent{background:rgba(20,224,200,.16);color:#8DF4E6}
.page-head-tags .tag-plain{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.18);color:rgba(255,255,255,.72)}

/* ============ 板块 ============ */
.sec{padding:var(--sec-y) 0}
.sec-alt{background:var(--c-surface)}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head h2{position:relative;padding-left:16px}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:var(--c-brand)
}
.sec-head p{margin-top:14px;color:var(--c-text-2);font-size:16px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.sec-head-row .sec-head{margin-bottom:0}

/* ============ 清单区 左3右9 ============ */
.layout-3-9{display:grid;grid-template-columns:3fr 9fr;gap:32px;align-items:start}
.filter-aside{
  position:sticky;top:88px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r);padding:22px;box-shadow:var(--sh-1)
}
.filter-title{font-size:13px;font-weight:700;color:var(--c-text-3);letter-spacing:.08em;margin-bottom:12px}
.filter-group{margin-bottom:20px}
.filter-group:last-of-type{margin-bottom:0}
.filter-list{display:flex;flex-direction:column;gap:4px}
.filter-item{
  display:flex;align-items:center;justify-content:space-between;gap:8px;height:40px;padding:0 12px;
  border-radius:10px;font-size:14px;color:var(--c-text-2);text-decoration:none;transition:background-color .18s var(--ease),color .18s var(--ease)
}
.filter-item:hover{background:var(--c-brand-soft);color:var(--c-brand);text-decoration:none}
.filter-item.current{background:var(--c-brand-soft);color:var(--c-brand);font-weight:700}
.filter-item .count{font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.filter-item.current .count{color:var(--c-brand)}
.filter-note{
  margin-top:20px;padding:16px;border-radius:12px;background:var(--c-bg);
  border:1px solid var(--c-line);font-size:13px;color:var(--c-text-2);line-height:1.7
}
.filter-note strong{display:block;color:var(--c-text);font-size:14px;margin-bottom:6px}

/* 竖向图文列表卡 */
.vlist{display:flex;flex-direction:column;gap:22px}
.vcard{
  display:grid;grid-template-columns:300px 1fr;gap:24px;padding:20px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r);
  box-shadow:var(--sh-1);transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)
}
.vcard:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(107,43,246,.3)}
.thumb{
  position:relative;overflow:hidden;border-radius:12px;aspect-ratio:4/3;
  background:linear-gradient(135deg,#F1ECFF,#E4FBF7)
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.thumb.img-fallback::after{
  content:"图片暂不可用";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--c-text-3);background:#F1EEF9
}
.vcard:hover .thumb img{transform:scale(1.03)}
.vcard-body{display:flex;flex-direction:column;gap:12px;min-width:0}
.vcard-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.vcard-body h3{font-size:20px}
.vcard-body p{color:var(--c-text-2);font-size:15px}
.vcard-list{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.vcard-list li{position:relative;padding-left:22px;font-size:14px;color:var(--c-text-2)}
.vcard-list li::before{
  content:"";position:absolute;left:4px;top:9px;width:8px;height:8px;border-radius:2px;
  background:var(--c-brand-soft);border:1.5px solid var(--c-brand)
}
.vcard-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:auto;padding-top:10px;border-top:1px solid var(--c-line)}
.vcard-foot .meta{font-size:13px;color:var(--c-text-3)}

/* ============ 场景卡 ============ */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.scene-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r);
  padding:26px 22px;box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(107,43,246,.3)}
.scene-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--c-brand-soft);color:var(--c-brand);margin-bottom:16px
}
.scene-card h3{font-size:18px;margin-bottom:10px}
.scene-card p{font-size:14px;color:var(--c-text-2)}
.scene-card .scene-tip{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--c-line);
  font-size:13px;color:var(--c-accent-ink)
}

/* ============ 流程（暗区） ============ */
.sec-dark{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(520px 300px at 12% 100%, rgba(20,224,200,.18), transparent 70%),
    linear-gradient(160deg,var(--c-ink) 0%,var(--c-ink-2) 100%)
}
.sec-dark::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:48px 48px;pointer-events:none
}
.sec-dark .container{position:relative;z-index:2}
.sec-dark .sec-head h2{color:#fff}
.sec-dark .sec-head p{color:rgba(255,255,255,.7)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.flow-step{
  position:relative;padding:26px 22px 24px;border-radius:var(--r);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  transition:background-color .18s var(--ease),transform .18s var(--ease)
}
.flow-step:hover{background:rgba(255,255,255,.09);transform:translateY(-3px)}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;
  border-radius:10px;background:rgba(20,224,200,.2);color:#8DF4E6;font-weight:800;font-size:15px;
  font-variant-numeric:tabular-nums;margin-bottom:16px
}
.flow-step h3{color:#fff;font-size:18px;margin-bottom:10px}
.flow-step p{font-size:14px;color:rgba(255,255,255,.7)}
.flow-line{position:absolute;left:0;right:0;top:44px;height:1px;background:rgba(255,255,255,.1);display:none}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:first-child{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:18px;font-weight:600;color:var(--c-text);
  transition:color .18s var(--ease)
}
.faq-q:hover{color:var(--c-brand)}
.faq-q .plus{
  flex-shrink:0;width:26px;height:26px;position:relative;border-radius:50%;
  border:1px solid var(--c-line);transition:transform .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease)
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-text-2);border-radius:2px;
  transform:translate(-50%,-50%);transition:background-color .22s var(--ease)
}
.faq-q .plus::before{width:11px;height:1.5px}
.faq-q .plus::after{width:1.5px;height:11px}
.faq-item.open .faq-q{color:var(--c-brand)}
.faq-item.open .faq-q .plus{transform:rotate(45deg);border-color:var(--c-brand);background:var(--c-brand-soft)}
.faq-item.open .faq-q .plus::before,.faq-item.open .faq-q .plus::after{background:var(--c-brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
.faq-a-inner{padding:0 0 24px;font-size:15px;line-height:1.8;color:var(--c-text-2);max-width:760px}

/* ============ 表单 / CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);padding:40px;
  background:linear-gradient(120deg,var(--c-brand) 0%,var(--c-brand-2) 58%,#5B21D6 100%);
  color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--sh-3)
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),transparent 68%)
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);position:relative;z-index:2}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.82);font-size:15px;max-width:560px;position:relative;z-index:2}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}
.cta-band .btn-light{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.14)}
.cta-band .btn-light:hover{background:#fff;color:var(--c-brand)}
.cta-band .btn-promo{background:#fff;color:var(--c-brand)}
.cta-band .btn-promo:hover{color:var(--c-brand);filter:none;box-shadow:0 14px 30px -14px rgba(0,0,0,.4)}

.form-layout{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start;margin-top:44px}
.form-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r);
  padding:28px;box-shadow:var(--sh-1)
}
.form-card h3{font-size:20px;margin-bottom:8px}
.form-card .form-desc{font-size:14px;color:var(--c-text-2);margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--c-text)}
.field .req{color:var(--c-err)}
.field input[type=text],.field input[type=tel],.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--c-line);border-radius:12px;
  background:#fff;font-size:15px;outline:0;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease)
}
.field textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(107,43,246,.14)}
.field.is-error input,.field.is-error select,.field.is-error textarea{border-color:var(--c-err)}
.field .field-tip{display:none;margin-top:6px;font-size:12px;color:var(--c-err)}
.field.is-error .field-tip{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;margin-bottom:20px}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--c-brand);flex-shrink:0}
.check-row label{font-size:13px;color:var(--c-text-2);line-height:1.65}
.alert{display:none;border-radius:12px;padding:12px 16px;font-size:14px;margin-bottom:20px}
.alert.show{display:block}
.alert-ok{background:#E7F7F1;color:#0F6B4C}
.alert-err{background:#FDECEC;color:#A1282C;margin:12px 0 0}
.form-side{display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r);
  padding:24px;box-shadow:var(--sh-1)
}
.side-card h4{font-size:16px;margin-bottom:14px}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list li{display:flex;gap:12px;font-size:14px;color:var(--c-text-2)}
.side-list .k{color:var(--c-text);font-weight:600;min-width:74px;flex-shrink:0}
.side-warn{background:var(--c-brand-soft);border-color:transparent}
.side-warn h4{color:var(--c-brand)}
.side-warn p{font-size:14px;color:#4A3C82}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0;position:relative;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:52px 52px;pointer-events:none;opacity:.6
}
.site-footer .container{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:30px;height:30px;font-size:12px}
.footer-brand span:last-child{font-size:16px;font-weight:800;color:#fff}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);text-decoration:none}
.footer-links a:hover{color:#fff}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.66);line-height:1.7}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5)
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:960px}
  .command-search{width:210px}
  .command-search:focus-within{width:260px}
  .vcard{grid-template-columns:260px 1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .container{max-width:720px;padding:0 20px}
  .nav-links{display:none}
  .command-search{display:none}
  .quick-link{display:none}
  .search-icon-btn{display:inline-flex}
  .nav-toggle{display:inline-flex}
  .layout-3-9{grid-template-columns:1fr;gap:24px}
  .filter-aside{position:static}
  .filter-list{flex-direction:row;flex-wrap:wrap;gap:8px}
  .filter-item{height:36px;border:1px solid var(--c-line);border-radius:var(--r-pill)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .form-layout{grid-template-columns:1fr}
  .vcard{grid-template-columns:220px 1fr}
  :root{--sec-y:72px}
}
@media (max-width:767px){
  .container{max-width:100%;padding:0 16px}
  :root{--sec-y:56px}
  .page-head{padding:48px 0 44px}
  .page-head-sub{font-size:15px}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .vcard{grid-template-columns:1fr;padding:16px;gap:16px}
  .thumb{aspect-ratio:16/9}
  .vcard-foot{flex-direction:column;align-items:stretch;gap:10px}
  .vcard-foot .btn{width:100%}
  .cta-band{padding:28px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%;height:48px}
  .form-row{grid-template-columns:1fr}
  .btn{height:48px}
  .btn-sm{height:42px}
  .footer-grid{grid-template-columns:1fr}
  .sec-head-row{flex-direction:column;align-items:flex-start}
  .faq-q{font-size:16px;padding:18px 0}
}

/* roulang page: category2 */
:root{
  --c-brand:#6B2BF6;
  --c-brand-2:#8B5CF6;
  --c-brand-soft:#EFE9FF;
  --c-accent:#14E0C8;
  --c-promo:#FF8A1E;
  --c-promo-2:#FFB020;
  --c-bg:#F7F5FF;
  --c-surface:#FFFFFF;
  --c-line:#E8E4F5;
  --c-ink:#0E0A1F;
  --c-ink-2:#1A1230;
  --c-text:#171129;
  --c-text-2:#5B5470;
  --c-text-3:#8E88A3;
  --ok:#17A673;
  --warn:#E8A317;
  --err:#E5484D;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(23,17,41,.06);
  --sh-2:0 12px 32px -12px rgba(107,43,246,.18);
  --sh-3:0 24px 56px -20px rgba(107,43,246,.28);
  --sp:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-brand);text-decoration:none;transition:color .18s ease}
a:hover{color:#54209e;text-decoration:underline;text-underline-offset:3px}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.scrolled{background:rgba(255,255,255,.96);box-shadow:0 10px 28px -18px rgba(23,17,41,.35)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:64px;transition:height .2s ease}
.site-header.scrolled .nav-wrap{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--c-text);letter-spacing:.01em;white-space:nowrap}
.brand:hover{color:var(--c-text);text-decoration:none}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  color:#fff;font-size:12px;font-weight:800;letter-spacing:.03em;
  clip-path:polygon(0 0,78% 0,100% 22%,100% 100%,22% 100%,0 78%);
  flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;padding:8px 12px;border-radius:8px;
  font-size:14px;font-weight:500;color:var(--c-text-2);white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--c-text);background:var(--c-brand-soft);text-decoration:none}
.nav-link.active{color:var(--c-brand);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--c-brand);
}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.command-search{
  position:relative;display:flex;align-items:center;
  width:260px;height:38px;padding:0 10px 0 34px;
  border:1px solid var(--c-line);border-radius:12px;background:#fff;
  transition:width .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.command-search:focus-within{width:320px;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(107,43,246,.14)}
.command-search svg{position:absolute;left:11px;width:16px;height:16px;color:var(--c-text-3)}
.command-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px}
.command-search input::placeholder{color:var(--c-text-3)}
.kbd{font-size:11px;color:var(--c-text-3);background:var(--c-bg);border:1px solid var(--c-line);border-radius:6px;padding:1px 5px;flex:0 0 auto}
.nav-quick{font-size:14px;font-weight:600;color:var(--c-text-2);white-space:nowrap}
.nav-quick:hover{color:var(--c-brand);text-decoration:none}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--c-line);border-radius:12px;
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
  transition:border-color .18s ease,background .18s ease;
}
.nav-toggle:hover{border-color:var(--c-brand);background:var(--c-brand-soft)}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--c-text)}
.mobile-drawer{
  position:fixed;top:0;right:0;z-index:90;
  width:min(360px,88vw);height:100%;
  background:#fff;border-left:1px solid var(--c-line);
  transform:translateX(102%);transition:transform .24s cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;padding:20px;gap:18px;overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(14,10,31,.42);
  opacity:0;transition:opacity .24s ease;
}
.drawer-mask.show{opacity:1}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  font-size:20px;line-height:1;cursor:pointer;color:var(--c-text-2);
}
.drawer-close:hover{border-color:var(--c-brand);color:var(--c-brand)}
.drawer-search input{
  width:100%;height:44px;border:1px solid var(--c-line);border-radius:12px;padding:0 14px;outline:0;
}
.drawer-search input:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(107,43,246,.14)}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  display:flex;align-items:center;height:44px;font-size:15px;color:var(--c-text-2);
  border-bottom:1px solid var(--c-line);
}
.drawer-links a.active{color:var(--c-brand);font-weight:700}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.drawer-foot p{font-size:13px;color:var(--c-text-3)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,background .18s ease,color .18s ease,filter .18s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:linear-gradient(180deg,var(--c-brand),#5c21e2);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--sh-3);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border-color:var(--c-brand);color:var(--c-brand);background:#fff}
.btn-outline:hover{background:var(--c-brand-soft);color:var(--c-brand)}
.btn-outline-dark{border-color:rgba(255,255,255,.45);color:#fff;background:rgba(255,255,255,.06)}
.btn-outline-dark:hover{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.7)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed}

/* ---------- 板块通用 ---------- */
.sec{padding:var(--sp) 0}
.sec-soft{background:var(--c-bg)}
.sec-white{background:#fff}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-kicker{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--c-brand);background:var(--c-brand-soft);border-radius:var(--r-pill);
  padding:5px 12px;margin-bottom:14px;
}
.sec-title{font-size:clamp(24px,2.8vw,34px);line-height:1.3;font-weight:800;letter-spacing:.01em}
.sec-desc{margin-top:14px;font-size:16px;color:var(--c-text-2);max-width:680px}

/* ---------- Hero ---------- */
.sec-hero{position:relative;overflow:hidden;background:var(--c-ink);color:#fff;padding:84px 0 68px}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.3}
.sec-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:48px 48px;
}
.sec-hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(118deg,rgba(14,10,31,.95) 0%,rgba(14,10,31,.8) 46%,rgba(26,18,48,.9) 100%);
}
.hero-glow{
  position:absolute;z-index:2;top:-180px;right:-120px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(107,43,246,.6),transparent 68%);
}
.hero-inner{position:relative;z-index:3}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.35)}
.hero-badge{
  display:inline-block;font-size:13px;font-weight:600;padding:6px 13px;border-radius:var(--r-pill);
  background:rgba(20,224,200,.14);border:1px solid rgba(20,224,200,.32);color:#84f4e6;margin-bottom:20px;
}
.sec-hero h1{
  font-size:clamp(30px,4.6vw,52px);line-height:1.18;font-weight:900;letter-spacing:.01em;max-width:900px;
}
.hero-sub{margin-top:18px;font-size:17px;color:rgba(255,255,255,.76);max-width:620px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:46px;padding-top:28px;border-top:1px solid rgba(255,255,255,.12);
}
.stat-num{display:block;font-size:26px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.stat-label{display:block;font-size:13px;color:rgba(255,255,255,.6);margin-top:6px}

/* ---------- 概览数据卡 ---------- */
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.data-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:24px;
  box-shadow:var(--sh-1);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.data-card:hover{border-color:rgba(107,43,246,.3);box-shadow:var(--sh-2);transform:translateY(-3px)}
.data-num{font-size:22px;font-weight:800;color:var(--c-brand);font-variant-numeric:tabular-nums}
.data-label{font-size:15px;font-weight:700;margin-top:8px}
.data-note{font-size:14px;color:var(--c-text-2);margin-top:8px}

/* ---------- 交错双列 ---------- */
.zigzag{display:flex;flex-direction:column;gap:28px}
.zigzag-item{
  display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--sh-1);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.zigzag-item:hover{border-color:rgba(107,43,246,.3);box-shadow:var(--sh-2);transform:translateY(-3px)}
.zigzag-item.reverse .zz-media{order:2}
.media{position:relative;aspect-ratio:4/3;border-radius:var(--r-sm);overflow:hidden;background:var(--c-line)}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.zigzag-item:hover .media img{transform:scale(1.03)}
.media img.is-broken{opacity:0}
.zz-tag{
  display:inline-block;font-size:13px;font-weight:600;line-height:1;padding:7px 11px;border-radius:var(--r-pill);
  background:rgba(20,224,200,.14);color:#0d8b7c;margin-bottom:14px;
}
.zz-title{font-size:20px;font-weight:700;line-height:1.45}
.zz-desc{font-size:15px;color:var(--c-text-2);margin-top:12px}
.zz-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.zz-list li{position:relative;padding-left:24px;font-size:15px;color:var(--c-text-2)}
.zz-list li::before{
  content:"";position:absolute;left:4px;top:9px;width:8px;height:8px;border-radius:2px;
  background:var(--c-brand);transform:rotate(45deg);
}

/* ---------- 分档排查 ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:end}
.tier-card{
  position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh-1);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.tier-card:hover{border-color:rgba(107,43,246,.3);box-shadow:var(--sh-2);transform:translateY(-3px)}
.tier-grid .tier-card:nth-child(1){margin-bottom:36px}
.tier-grid .tier-card:nth-child(2){margin-bottom:18px}
.tier-grid .tier-card:nth-child(3){border-color:var(--c-brand);background:linear-gradient(180deg,#fff 0%,var(--c-brand-soft) 100%);box-shadow:var(--sh-2)}
.tier-flag{
  position:absolute;top:0;right:20px;padding:6px 12px;font-size:12px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--c-promo),var(--c-promo-2));
  clip-path:polygon(0 0,100% 0,100% 100%,50% 82%,0 100%);
  padding-bottom:14px;
}
.tier-no{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;
  background:var(--c-brand-soft);color:var(--c-brand);font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;
}
.tier-name{font-size:18px;font-weight:700;margin-top:14px}
.tier-text{font-size:14px;color:var(--c-text-2);margin-top:8px}
.tier-steps{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.tier-steps li{position:relative;padding-left:18px;font-size:14px;color:var(--c-text-2)}
.tier-steps li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--c-accent)}

/* ---------- 对照表 ---------- */
.tbl-wrap{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden}
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.cmp{width:100%;border-collapse:collapse;min-width:680px;font-size:15px}
.cmp th,.cmp td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--c-line);vertical-align:top}
.cmp thead th{background:var(--c-brand-soft);font-size:14px;font-weight:700;color:var(--c-text);white-space:nowrap}
.cmp tbody tr:nth-child(even){background:#FBF9FF}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp td:first-child{font-weight:600;white-space:nowrap}
.cmp .cell-tag{
  display:inline-block;font-size:12px;font-weight:600;padding:4px 9px;border-radius:var(--r-pill);
  background:rgba(107,43,246,.1);color:var(--c-brand);
}
.cmp .cell-tag.warn{background:rgba(232,163,23,.14);color:#9a6a05}
.cmp .cell-tag.ok{background:rgba(23,166,115,.14);color:#0d7a54}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.form-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1)}
.alert{display:none;border-radius:12px;padding:12px 14px;font-size:14px;margin-bottom:18px}
.alert-ok{display:block;background:#E8F7F1;color:#0d7a54;border:1px solid rgba(23,166,115,.3)}
.alert-err{background:#FDECEC;color:#a52326;border:1px solid rgba(229,72,77,.3);margin:14px 0 0}
.alert-err.show{display:block}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:46px;border:1px solid var(--c-line);border-radius:12px;padding:0 14px;background:#fff;outline:0;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;min-height:118px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(107,43,246,.14)}
.field.error input,.field.error select,.field.error textarea{border-color:var(--err);box-shadow:0 0 0 3px rgba(229,72,77,.12)}
.field .err-msg{display:none;font-size:12px;color:var(--err);margin-top:6px}
.field.error .err-msg{display:block}
.checkbox-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-text-2);margin-bottom:20px}
.checkbox-row input{width:18px;height:18px;margin-top:2px;flex:0 0 auto;accent-color:var(--c-brand)}
.form-note{font-size:13px;color:var(--c-text-3);margin-top:14px}
.contact-card{background:var(--c-ink-2);color:rgba(255,255,255,.8);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-2)}
.contact-card h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:8px}
.contact-card > p{font-size:14px;color:rgba(255,255,255,.62);margin-bottom:20px}
.contact-item{padding:14px 0;border-top:1px solid rgba(255,255,255,.1)}
.contact-item span{display:block;font-size:13px;color:rgba(255,255,255,.55)}
.contact-item strong{display:block;font-size:15px;color:#fff;font-weight:600;margin-top:4px}

/* ---------- FAQ ---------- */
.faq-list{max-width:840px;margin:0 auto;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:0;text-align:left;font-size:17px;font-weight:600;
  cursor:pointer;color:var(--c-text);transition:color .18s ease;
}
.faq-q:hover{color:var(--c-brand)}
.faq-icon{flex:0 0 auto;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;font-size:20px;color:var(--c-text-3);transition:transform .22s ease,color .22s ease}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--c-brand)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--c-text-2)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#fff;padding:64px 0;
  background:linear-gradient(120deg,var(--c-ink) 0%,#2A1A56 56%,#3B1C7C 100%);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:52px 52px;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;line-height:1.3}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.72);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-grid p{font-size:14px;color:rgba(255,255,255,.6);max-width:320px}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.68);font-size:14px}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(255,255,255,.68)}
.footer-bottom{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:22px;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sp:80px}
  .command-search{width:220px}
  .command-search:focus-within{width:280px}
}
@media (max-width:1023px){
  :root{--sp:72px}
  .nav-links{display:none}
  .nav-quick{display:none}
  .nav-toggle{display:inline-flex}
  .command-search{display:none}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--sp:56px}
  .container{padding:0 16px}
  .sec-hero{padding:64px 0 56px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:18px}
  .data-grid{grid-template-columns:1fr}
  .zigzag-item{grid-template-columns:1fr;gap:20px;padding:18px}
  .zigzag-item.reverse .zz-media{order:0}
  .zz-title{font-size:18px}
  .tier-grid{grid-template-columns:1fr}
  .tier-grid .tier-card:nth-child(1),
  .tier-grid .tier-card:nth-child(2){margin-bottom:0}
  .form-card,.contact-card{padding:20px}
  .faq-q{font-size:16px;padding:18px}
  .faq-a p{padding:0 18px 18px}
  .cta-actions{width:100%}
  .btn{width:100%;height:48px}
  .nav-toggle{width:44px;height:44px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr}
  .sec-title{font-size:22px}
}

/* roulang page: category3 */
:root{
  --c-brand:#6B2BF6;
  --c-brand-2:#8B5CF6;
  --c-brand-soft:#EFE9FF;
  --c-accent:#14E0C8;
  --c-accent-deep:#0B7F72;
  --c-promo:#FF8A1E;
  --c-promo-2:#FFB020;
  --c-bg:#F7F5FF;
  --c-surface:#FFFFFF;
  --c-line:#E8E4F5;
  --c-ink:#0E0A1F;
  --c-ink-2:#1A1230;
  --c-text:#171129;
  --c-text-2:#5B5470;
  --c-text-3:#8E88A3;
  --c-success:#17A673;
  --c-warn:#E8A317;
  --c-danger:#E5484D;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(23,17,41,.06);
  --sh-2:0 12px 32px -12px rgba(107,43,246,.18);
  --sh-3:0 24px 56px -20px rgba(107,43,246,.28);
  --container:1200px;
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-brand);text-decoration:none;text-underline-offset:3px;transition:color .18s cubic-bezier(.2,.7,.3,1)}
a:hover{color:#5520CE;text-decoration:underline}
button{font:inherit;color:inherit}
input,select,textarea{font:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:.01em;line-height:1.25}
h1{font-size:clamp(30px,4.6vw,52px);font-weight:900}
h2{font-size:clamp(24px,2.8vw,36px);font-weight:800}
h3{font-size:20px;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);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,.94);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-header.is-shrink{box-shadow:0 12px 30px -20px rgba(23,17,41,.45);background:rgba(255,255,255,.92)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height .22s ease}
.site-header.is-shrink .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-text);text-decoration:none}
.brand:hover{text-decoration:none;color:var(--c-text)}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  color:#fff;font-weight:900;font-size:14px;letter-spacing:.02em;
  border-radius:10px;
  clip-path:polygon(0 0,72% 0,100% 28%,100% 100%,0 100%);
  box-shadow:var(--sh-2);
}
.brand-text{font-size:17px;font-weight:800;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:14px}
.nav-link{
  position:relative;font-size:14px;font-weight:600;color:var(--c-text-2);
  padding:6px 0;text-decoration:none;white-space:nowrap;
}
.nav-link:hover{color:var(--c-brand);text-decoration:none}
.nav-link.active{color:var(--c-text)}
.nav-link.active::after{
  content:"";position:absolute;left:0;bottom:-2px;width:18px;height:2px;
  background:var(--c-brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:260px;height:38px;padding:0 10px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);
  transition:width .22s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.command-search:focus-within{
  width:320px;border-color:var(--c-brand);
  box-shadow:0 0 0 4px rgba(107,43,246,.14);
}
.command-search svg{flex:0 0 auto;width:16px;height:16px;color:var(--c-text-3)}
.command-search input{
  flex:1 1 auto;min-width:0;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--c-text);
}
.command-search input::placeholder{color:var(--c-text-3)}
.command-search kbd{
  flex:0 0 auto;font-family:inherit;font-size:11px;font-weight:700;color:var(--c-text-2);
  background:#F3F0FC;border:1px solid var(--c-line);border-radius:6px;padding:2px 6px;
}
.header-link{font-size:14px;font-weight:600;color:var(--c-text-2);white-space:nowrap}
.header-link:hover{color:var(--c-brand);text-decoration:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border:1px solid transparent;border-radius:var(--r-sm);
  font-size:15px;font-weight:700;cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:transform .18s cubic-bezier(.2,.7,.3,1),filter .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--sh-3);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--c-brand);border-color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-brand-soft);color:var(--c-brand)}
.btn-light{background:#fff;color:var(--c-ink)}
.btn-light:hover{filter:brightness(.97);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;cursor:not-allowed;pointer-events:none}
.menu-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);cursor:pointer;
}
.menu-toggle span{display:block;width:16px;height:2px;background:var(--c-text);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--c-text);border-radius:2px}
.menu-toggle span::before{top:-5px}
.menu-toggle span::after{top:5px}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(340px,86vw);z-index:90;
  background:#fff;box-shadow:-20px 0 60px -30px rgba(23,17,41,.5);
  transform:translateX(102%);transition:transform .26s cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;padding:18px 20px 26px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-close{width:36px;height:36px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-sm);cursor:pointer;font-size:18px;line-height:1}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;
  border:1px solid var(--c-line);border-radius:var(--r-sm);background:#FBF9FF;margin-bottom:18px;
}
.drawer-search input{flex:1;border:0;background:transparent;outline:0;font-size:14px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  display:flex;align-items:center;height:44px;padding:0 4px;font-size:15px;font-weight:600;
  color:var(--c-text-2);border-bottom:1px solid var(--c-line);text-decoration:none;
}
.drawer-nav a.active{color:var(--c-brand)}
.drawer-foot{margin-top:auto;padding-top:20px;display:grid;gap:12px}
.drawer-foot p{font-size:13px;color:var(--c-text-3)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,10,31,.42);z-index:85;opacity:0;pointer-events:none;transition:opacity .24s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}

/* ============ 页头 ============ */
.page-head{
  background:linear-gradient(180deg,#fff 0%,#F4F0FF 100%);
  border-bottom:1px solid var(--c-line);
  padding:52px 0 56px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--c-text-2)}
.crumb span.sep{color:#C9C3DC}
.page-head h1{max-width:900px;margin-bottom:18px}
.page-head .lede{max-width:720px;font-size:17px;color:var(--c-text-2)}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  font-size:13px;font-weight:600;background:var(--c-brand-soft);color:var(--c-brand);
}
.tag-accent{background:rgba(20,224,200,.16);color:var(--c-accent-deep)}
.tag-warm{background:rgba(255,138,30,.14);color:#B25A05}

/* ============ 板块壳 ============ */
.sec{padding:var(--sec-y) 0}
.sec-tight{padding:64px 0}
.sec-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--c-brand);letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--c-brand);border-radius:2px}
.sec-head p{margin-top:14px;color:var(--c-text-2);font-size:16px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .eyebrow{justify-content:center}

/* ============ 信号卡 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(107,43,246,.3)}
.card-num{
  width:38px;height:38px;display:grid;place-items:center;border-radius:10px;
  background:var(--c-brand-soft);color:var(--c-brand);font-weight:900;font-size:15px;
  clip-path:polygon(0 0,74% 0,100% 26%,100% 100%,0 100%);
  margin-bottom:16px;
}
.card h3{margin-bottom:10px}
.card p{font-size:15px;color:var(--c-text-2)}
.card ul{margin-top:14px;display:grid;gap:8px}
.card ul li{position:relative;padding-left:16px;font-size:14px;color:var(--c-text-2)}
.card ul li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:2px;background:var(--c-brand-2)}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:52px;max-width:900px}
.timeline::before{
  content:"";position:absolute;left:17px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--c-brand),rgba(107,43,246,.08));
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:36px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-52px;top:0;width:36px;height:36px;border-radius:50%;
  background:#fff;border:2px solid var(--c-brand);color:var(--c-brand);
  display:grid;place-items:center;font-weight:900;font-size:14px;box-shadow:var(--sh-1);
}
.tl-item h3{margin-bottom:8px;font-size:19px}
.tl-item p{color:var(--c-text-2);font-size:15px;max-width:700px}
.tl-hint{
  display:inline-flex;align-items:center;gap:8px;margin-top:12px;
  font-size:13px;font-weight:600;color:var(--c-accent-deep);
  background:rgba(20,224,200,.12);border-radius:999px;padding:5px 12px;
}

/* ============ 对照表 ============ */
.tbl-wrap{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
}
.tbl-scroll{overflow-x:auto}
table.tbl-plan{width:100%;border-collapse:collapse;min-width:720px}
.tbl-plan th,.tbl-plan td{
  padding:16px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--c-line);
  vertical-align:top;
}
.tbl-plan thead th{
  background:#FBF9FF;color:var(--c-text);font-weight:800;font-size:14px;
  position:sticky;top:0;z-index:2;
}
.tbl-plan tbody tr:nth-child(even){background:#FCFBFF}
.tbl-plan td:first-child,.tbl-plan th:first-child{font-weight:700;color:var(--c-text)}
.tbl-plan .col-good{background:rgba(23,166,115,.08)}
.tbl-plan .col-bad{background:rgba(229,72,77,.06)}
.mark-ok,.mark-no{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px}
.mark-ok{color:var(--c-success)}
.mark-no{color:var(--c-danger)}
.tbl-note{margin-top:16px;font-size:13px;color:var(--c-text-3)}

/* ============ 图文案例 ============ */
.case-row{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.case-row + .case-row{margin-top:56px}
.case-row.reverse .case-text{order:2}
.case-row.reverse .case-media{order:1}
.media{
  border-radius:var(--r-md);overflow:hidden;background:linear-gradient(135deg,#EFE9FF,#E3FBF7);
  box-shadow:var(--sh-2);aspect-ratio:16/10;
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .3s cubic-bezier(.2,.7,.3,1)}
.media:hover img{transform:scale(1.03)}
.case-text h3{margin-bottom:12px}
.case-text p{color:var(--c-text-2);font-size:15.5px;margin-bottom:14px}
.case-list{display:grid;gap:10px;margin-top:6px}
.case-list li{display:flex;gap:10px;font-size:14.5px;color:var(--c-text-2)}
.check{
  flex:0 0 auto;width:20px;height:20px;margin-top:3px;border-radius:6px;
  background:var(--c-brand-soft);color:var(--c-brand);display:grid;place-items:center;
  font-size:12px;font-weight:900;
}

/* ============ 自查清单 ============ */
.checklist{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;
}
.check-item{
  display:flex;align-items:flex-start;gap:12px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-sm);padding:16px 18px;font-size:15px;color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.check-item:hover{border-color:rgba(107,43,246,.3);box-shadow:var(--sh-1);transform:translateY(-2px)}
.check-item small{display:block;color:var(--c-text-3);font-size:13px;margin-top:4px}

/* ============ 数据带 ============ */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  background:var(--c-ink);border-radius:var(--r-lg);padding:34px 30px;color:#fff;
  position:relative;overflow:hidden;
}
.stats::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(107,43,246,.55),rgba(107,43,246,0) 70%);
}
.stat{position:relative;z-index:1}
.stat b{display:block;font-size:clamp(24px,3vw,34px);font-weight:900;font-variant-numeric:tabular-nums;letter-spacing:.01em}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:rgba(255,255,255,.66)}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:first-child{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:22px 2px;cursor:pointer;text-align:left;
  font-size:18px;font-weight:600;color:var(--c-text);
}
.faq-q:hover{color:var(--c-brand)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;position:relative;border-radius:50%;
  background:var(--c-brand-soft);transition:transform .22s cubic-bezier(.2,.7,.3,1),background .22s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--c-brand);border-radius:2px;
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:#fff;box-shadow:inset 0 0 0 1px var(--c-brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a p{padding:0 44px 22px 2px;font-size:15px;line-height:1.8;color:var(--c-text-2)}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(120deg,var(--c-ink) 0%,var(--c-ink-2) 55%,#2A1750 100%);
  color:#fff;padding:48px 44px;display:flex;align-items:center;gap:32px;justify-content:space-between;
  box-shadow:var(--sh-3);
}
.cta-band::after{
  content:"";position:absolute;left:-40px;bottom:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,224,200,.28),rgba(20,224,200,0) 70%);
}
.cta-band > div{position:relative;z-index:1}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;color:#fff}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 表单区 ============ */
.form-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.panel{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:28px;box-shadow:var(--sh-1)}
.field{display:grid;gap:8px;margin-bottom:16px}
.field label{font-size:14px;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#FDFCFF;color:var(--c-text);outline:0;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(107,43,246,.14);
}
.field .err{font-size:12px;color:var(--c-danger);display:none}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--c-danger)}
.field.has-error .err{display:block}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--c-text-2);margin:4px 0 18px}
.agree input{width:18px;height:18px;margin-top:2px;accent-color:var(--c-brand)}
.alert{
  display:none;border-radius:var(--r-sm);padding:12px 14px;font-size:14px;margin-bottom:16px;
}
.alert.is-ok{display:block;background:rgba(23,166,115,.1);color:#0F7A54;border:1px solid rgba(23,166,115,.28)}
.info-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:28px;box-shadow:var(--sh-1)}
.info-card h3{margin-bottom:16px}
.info-row{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--c-line);font-size:14.5px;color:var(--c-text-2)}
.info-row:last-child{border-bottom:0}
.info-row b{color:var(--c-text);font-weight:700;flex:0 0 84px}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px}
.footer-brand .brand-mark{width:32px;height:32px;font-size:13px}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6)}
.site-footer h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-links a:hover{color:#fff;text-decoration:none}
.footer-contact{display:grid;gap:10px;font-size:14px;color:rgba(255,255,255,.6)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.img-fallback{background:#E4E0F1}

/* ============ 断点 ============ */
@media (max-width:1279px){
  .container{max-width:960px}
}
@media (max-width:1023px){
  :root{--sec-y:76px}
  .container{max-width:720px}
  .nav-links{display:none}
  .command-search{display:none}
  .header-link{display:none}
  .menu-toggle{display:inline-flex}
  .grid-3{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .checklist{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--sec-y:56px}
  .container{max-width:100%;padding:0 16px}
  .page-head{padding:34px 0 40px}
  .header-inner{gap:12px}
  .brand-text{font-size:15.5px}
  .btn{height:48px;width:100%}
  .btn-sm{height:44px;width:auto}
  .grid-3{grid-template-columns:1fr}
  .case-row{grid-template-columns:1fr;gap:20px}
  .case-row.reverse .case-text{order:1}
  .case-row.reverse .case-media{order:2}
  .timeline{padding-left:44px}
  .tl-dot{left:-44px;width:32px;height:32px;font-size:13px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 22px}
  .cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .stats{padding:26px 20px;gap:16px}
  .faq-q{font-size:16.5px}
  .faq-a p{padding-right:8px}
  .panel,.info-card{padding:20px}
}
@media (max-width:519px){
  .head-meta{gap:8px}
  .stats{grid-template-columns:1fr}
  .cta-actions .btn{width:100%}
}