/* roulang page: index */
:root{
  --brand:#FF6A2C;
  --brand-2:#FF3D7F;
  --teal:#12C7B7;
  --ink:#14151B;
  --ink-soft:#1E2028;
  --paper:#F7F4EF;
  --orange-soft:#FFF1E8;
  --teal-soft:#E6FAF7;
  --text:#3A3D46;
  --muted:#6B6F7A;
  --line:rgba(20,21,27,.08);
  --line-strong:rgba(20,21,27,.14);
  --grad:linear-gradient(120deg,#FF6A2C 0%,#FF3D7F 48%,#12C7B7 100%);
  --grad-soft:linear-gradient(120deg,rgba(255,106,44,.14) 0%,rgba(255,61,127,.12) 48%,rgba(18,199,183,.14) 100%);
  --r-12:12px;
  --r-20:20px;
  --r-28:28px;
  --r-36:36px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,21,27,.06);
  --sh-2:0 18px 48px rgba(20,21,27,.12);
  --sp-96:96px;
  --sp-64:64px;
  --sp-48:48px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--paper);
  background-image:radial-gradient(rgba(20,21,27,.05) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--brand)}
button,input,textarea,select{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em;font-weight:800}
h1{font-size:clamp(2rem,4vw,3.5rem);line-height:1.15}
h2{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.25}
h3{font-size:clamp(1.15rem,1.6vw,1.45rem);line-height:1.35}
p{margin:0}
::selection{background:rgba(255,106,44,.22)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,.accordion-button:focus-visible{
  outline:3px solid rgba(255,106,44,.35);outline-offset:2px;border-radius:8px
}
.container{max-width:1280px;padding-left:24px;padding-right:24px}
.section{padding:var(--sp-96) 0}
.section-tight{padding:var(--sp-64) 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand);
  background:rgba(255,106,44,.1);border:1px solid rgba(255,106,44,.22);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:18px
}
.eyebrow i{font-size:11px}
.lead{color:var(--muted);font-size:17px;max-width:760px}
.section-head{margin-bottom:40px;max-width:820px}
.section-head p{margin-top:14px;color:var(--muted)}

/* 按钮 */
.btn-brand,.btn-ghost,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);font-weight:700;font-size:15.5px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease
}
.btn-brand{color:#fff;background-image:var(--grad);box-shadow:0 10px 26px rgba(255,61,127,.28)}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,61,127,.34)}
.btn-brand:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,61,127,.3)}
.btn-soft{background:#fff;border-color:var(--line-strong);color:var(--ink)}
.btn-soft:hover{color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.32);color:#fff}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.1)}
.btn-sm{padding:10px 18px;font-size:14px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1030;padding-top:16px;padding-bottom:10px}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--ink);
  border-radius:var(--r-28);
  padding:12px 14px 12px 20px;
  box-shadow:0 16px 40px rgba(20,21,27,.24);
  border:1px solid rgba(255,255,255,.08)
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
  background-image:var(--grad);color:#fff;font-size:18px;flex:0 0 auto
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{color:#fff;font-size:17px;font-weight:800;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11.5px;color:rgba(255,255,255,.55);letter-spacing:.12em}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:8px}
.nav-card{
  display:flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;color:rgba(255,255,255,.78);
  border:1px solid transparent;background:rgba(255,255,255,.05);
  transition:all .2s ease;white-space:nowrap
}
.nav-card i{font-size:12.5px;opacity:.85}
.nav-card:hover{color:#fff;background:rgba(255,255,255,.12)}
.nav-card.active{
  color:#fff;
  background:var(--grad-soft);
  border-color:rgba(255,255,255,.28);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.06)
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  margin-left:auto;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);
  color:#fff;width:44px;height:44px;border-radius:14px;display:grid;place-items:center;cursor:pointer
}
.offcanvas.dark-panel{background:var(--ink);color:#fff}
.offcanvas.dark-panel .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.1)}
.offcanvas.dark-panel .btn-close{filter:invert(1) grayscale(1) brightness(2)}
.m-nav-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:8px 4px}
.m-nav-card{
  display:flex;flex-direction:column;gap:8px;padding:16px;border-radius:var(--r-20);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);color:#fff;font-weight:600;font-size:14.5px
}
.m-nav-card i{font-size:18px;color:var(--teal)}
.m-nav-card.active{background:var(--grad-soft);border-color:rgba(255,255,255,.28)}
.m-cta-fixed{padding:16px 4px 4px}

/* Hero */
.hero{padding:56px 0 72px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle at 40% 40%,rgba(255,106,44,.22),rgba(255,61,127,.14) 45%,transparent 70%);
  filter:blur(10px);pointer-events:none
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;z-index:1}
.hero h1{margin-bottom:20px}
.hero h1 span{
  background-image:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent
}
.hero-sub{font-size:18px;color:var(--muted);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.pill-tag{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;
  padding:7px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink);box-shadow:var(--sh-1)
}
.pill-tag i{color:var(--teal);font-size:11px}
.hero-visual{position:relative}
.hero-card{
  position:relative;border-radius:var(--r-36);overflow:hidden;
  box-shadow:var(--sh-2);border:1px solid rgba(255,255,255,.5);background:#fff
}
.hero-card img{width:100%;height:460px;object-fit:cover}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(20,21,27,.05) 0%,rgba(20,21,27,.55) 100%)
}
.hero-wave{
  position:absolute;left:0;right:0;bottom:0;height:96px;
  background-image:var(--grad);opacity:.82;
  -webkit-mask-image:linear-gradient(to top,#000 20%,transparent);
  mask-image:linear-gradient(to top,#000 20%,transparent)
}
.float-badge{
  position:absolute;z-index:3;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-20);padding:12px 16px;box-shadow:var(--sh-2);
  display:flex;flex-direction:column;gap:2px;min-width:132px
}
.float-badge b{font-size:22px;font-weight:800;color:var(--ink);line-height:1.2}
.float-badge span{font-size:12px;color:var(--muted)}
.float-badge.b1{top:24px;left:-22px}
.float-badge.b2{bottom:96px;right:-18px}
.float-badge.b3{bottom:20px;left:26px;background:var(--ink);border-color:rgba(255,255,255,.14)}
.float-badge.b3 b{color:#fff}
.float-badge.b3 span{color:rgba(255,255,255,.65)}

/* 入口卡片带 */
.entry-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.entry-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-20);
  padding:24px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;gap:10px;height:100%
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.entry-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background-image:var(--grad);color:#fff;font-size:18px
}
.entry-card h3{font-size:17px}
.entry-card p{font-size:14.5px;color:var(--muted)}
.entry-card .arrow{margin-top:auto;font-size:13px;font-weight:700;color:var(--brand)}

/* Bento */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card-base{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-28);
  box-shadow:var(--sh-1);padding:28px;transition:transform .25s ease,box-shadow .25s ease
}
.card-base:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.bento-6{grid-column:span 6}
.bento-3{grid-column:span 3}
.bento-4{grid-column:span 4}
.bento-8{grid-column:span 8}
.bento-media{position:relative;border-radius:var(--r-28);overflow:hidden;min-height:300px}
.bento-media img{width:100%;height:100%;min-height:300px;object-fit:cover}
.bento-media-overlay{
  position:absolute;inset:0;padding:28px;display:flex;flex-direction:column;justify-content:flex-end;
  background:linear-gradient(180deg,rgba(20,21,27,.08) 0%,rgba(20,21,27,.78) 100%);color:#fff
}
.bento-media-overlay h3{color:#fff;margin-bottom:8px}
.bento-media-overlay p{color:rgba(255,255,255,.8);font-size:14.5px}
.stack-col{display:flex;flex-direction:column;gap:24px}
.mini-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-20);padding:22px;
  box-shadow:var(--sh-1);flex:1;display:flex;flex-direction:column;gap:8px;
  transition:transform .25s ease,box-shadow .25s ease
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.mini-card i{color:var(--brand);font-size:17px}
.mini-card h3{font-size:16.5px}
.mini-card p{font-size:14px;color:var(--muted)}
.dark-card{
  background:var(--ink);border-radius:var(--r-28);padding:28px;color:#F5F3EF;
  display:flex;flex-direction:column;justify-content:space-between;gap:18px;
  border:1px solid rgba(255,255,255,.12)
}
.dark-card .num{font-size:38px;font-weight:800;line-height:1;letter-spacing:-.03em}
.dark-card .num small{font-size:15px;font-weight:600;margin-left:4px}
.dark-card p{color:rgba(255,255,255,.72);font-size:14px}
.dark-card .divider{height:1px;background:rgba(255,255,255,.14)}
.list-card ul{display:flex;flex-direction:column;gap:12px;margin-top:16px}
.list-card li{display:flex;gap:10px;font-size:14.5px;color:var(--muted)}
.list-card li i{color:var(--teal);margin-top:6px;font-size:11px}
.explain-card{background:var(--orange-soft);border-color:rgba(255,106,44,.16)}
.explain-card .grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:18px}
.explain-item{background:rgba(255,255,255,.72);border-radius:var(--r-20);padding:18px}
.explain-item b{display:block;font-size:15px;color:var(--ink);margin-bottom:6px}
.explain-item span{font-size:14px;color:var(--muted)}

/* 数据带 */
.stat-band{background:var(--ink);border-radius:var(--r-36);padding:44px 40px;position:relative;overflow:hidden}
.stat-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background-image:var(--grad)
}
.stat-band::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,199,183,.22),transparent 70%)
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;z-index:1}
.stat-item{
  border:1px solid rgba(255,255,255,.14);border-radius:var(--r-20);padding:22px;
  background:rgba(255,255,255,.04)
}
.stat-item b{display:block;font-size:clamp(28px,3vw,36px);font-weight:800;color:#fff;line-height:1.1;letter-spacing:-.03em}
.stat-item span{display:block;font-size:12px;color:rgba(255,255,255,.68);letter-spacing:.06em;margin-top:8px}

/* 案例 mosaic */
.mosaic{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.mosaic-main{position:relative;border-radius:var(--r-36);overflow:hidden;box-shadow:var(--sh-2)}
.mosaic-main img{width:100%;height:100%;min-height:440px;object-fit:cover}
.mosaic-main .cap{
  position:absolute;left:0;right:0;bottom:0;padding:32px;color:#fff;
  background:linear-gradient(180deg,transparent,rgba(20,21,27,.86))
}
.mosaic-main .cap h3{color:#fff;margin-bottom:8px}
.mosaic-main .cap p{color:rgba(255,255,255,.8);font-size:14.5px;max-width:460px}
.mosaic-side{display:flex;flex-direction:column;gap:24px}
.mosaic-side .card-base{padding:0;overflow:hidden;display:flex;flex-direction:column}
.mosaic-side img{width:100%;height:172px;object-fit:cover}
.mosaic-side .body{padding:22px}
.mosaic-side h3{font-size:17px;margin-bottom:8px}
.mosaic-side p{font-size:14px;color:var(--muted)}
.mosaic-side .card-base:nth-child(2){transform:translateY(20px)}
.mosaic-side .card-base:nth-child(2):hover{transform:translateY(16px)}

/* 方案对照 */
.compare-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-28);box-shadow:var(--sh-1);overflow:hidden}
.compare-table{width:100%;border-collapse:collapse}
.compare-table th,.compare-table td{padding:18px 22px;text-align:left;font-size:15px;border-bottom:1px solid var(--line)}
.compare-table thead th{background:var(--ink);color:#fff;font-size:14px;letter-spacing:.04em;font-weight:700}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table tbody tr:hover{background:rgba(255,106,44,.04)}
.compare-table td:first-child{font-weight:700;color:var(--ink);width:22%}
.compare-table .tag-mini{
  display:inline-block;font-size:12px;font-weight:700;padding:4px 10px;border-radius:var(--r-pill);
  background:var(--teal-soft);color:#0B7A70;border:1px solid rgba(18,199,183,.25)
}
.accordion.mobile-plan .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-20)!important;overflow:hidden;margin-bottom:12px;background:#fff
}
.accordion.mobile-plan .accordion-button{
  background:#fff;color:var(--ink);font-weight:700;font-size:15.5px;padding:18px 20px;box-shadow:none
}
.accordion.mobile-plan .accordion-button:not(.collapsed){background:var(--orange-soft);color:var(--brand)}
.accordion.mobile-plan .accordion-body{font-size:14.5px;color:var(--muted);line-height:1.8}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-28);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-thumb{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-meta{display:flex;flex-wrap:wrap;gap:8px}
.news-meta span{
  font-size:12px;font-weight:600;padding:4px 11px;border-radius:var(--r-pill);
  background:rgba(20,21,27,.05);color:var(--muted)
}
.news-meta span.cat{background:var(--orange-soft);color:#C24A16}
.news-card h3{font-size:17px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-card p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13.5px;font-weight:700;color:var(--brand)}
.empty-state{
  background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-28);
  padding:48px 24px;text-align:center;color:var(--muted);font-size:15px
}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.faq-sticky{position:sticky;top:120px}
.faq-sticky p{color:var(--muted);margin-top:14px;font-size:15px}
.accordion.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-20)!important;overflow:hidden;
  margin-bottom:14px;background:#fff;box-shadow:var(--sh-1)
}
.accordion.faq-acc .accordion-button{
  background:#fff;color:var(--ink);font-weight:700;font-size:16px;padding:20px 24px;
  box-shadow:none;transition:background .2s ease
}
.accordion.faq-acc .accordion-button:not(.collapsed){background:var(--orange-soft);color:var(--brand)}
.accordion.faq-acc .accordion-button::after{
  background-image:none;content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;
  width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  background:rgba(20,21,27,.06);color:var(--ink);font-size:13px;transition:transform .2s ease
}
.accordion.faq-acc .accordion-button:not(.collapsed)::after{
  content:"\f068";background-image:none;background:var(--brand);color:#fff;transform:rotate(180deg)
}
.accordion.faq-acc .accordion-body{padding:4px 24px 22px;color:var(--muted);font-size:15px;line-height:1.85}

/* 联系 CTA */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:stretch}
.contact-info{
  background:var(--ink);border-radius:var(--r-36);padding:36px;color:#fff;
  display:flex;flex-direction:column;gap:20px;position:relative;overflow:hidden
}
.contact-info::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background-image:var(--grad)
}
.contact-info h2{color:#fff}
.contact-info p{color:rgba(255,255,255,.72);font-size:15px}
.contact-lines{display:flex;flex-direction:column;gap:14px;margin-top:auto}
.contact-line{display:flex;align-items:center;gap:12px;font-size:14.5px;color:rgba(255,255,255,.85)}
.contact-line i{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,255,255,.08);color:var(--teal);font-size:14px;flex:0 0 auto
}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-36);padding:36px;box-shadow:var(--sh-1)}
.form-label{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:8px}
.form-control,.form-select{
  height:48px;border-radius:14px;border:1px solid var(--line-strong);background:#FBFAF8;
  font-size:15px;padding:10px 16px;transition:all .2s ease
}
textarea.form-control{height:auto;min-height:120px;padding-top:14px;resize:vertical}
.form-control:focus,.form-select:focus{
  background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,106,44,.18);outline:none
}
.form-check-input{width:20px;height:20px;border-radius:6px;border-color:var(--line-strong);margin-top:3px}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand)}
.form-check-label{font-size:13.5px;color:var(--muted)}
.form-hint{font-size:13px;color:var(--muted);margin-top:10px}

/* 页脚 */
.site-footer{
  background:var(--ink);color:rgba(255,255,255,.72);margin-top:96px;
  border-radius:28px 28px 0 0;position:relative;overflow:hidden
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background-image:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{width:40px;height:40px;border-radius:13px}
.footer-brand b{color:#fff;font-size:17px;font-weight:800}
.site-footer p{font-size:14px;line-height:1.85}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7)}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55)
}
.footer-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;padding:6px 12px;
  border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.05);color:rgba(255,255,255,.75)
}

/* 响应式 */
@media (max-width:1399px){
  .container{max-width:1180px}
}
@media (max-width:1199px){
  .hero-card img{height:400px}
  .float-badge.b1{left:0}
  .float-badge.b2{right:0}
}
@media (max-width:991px){
  :root{--sp-96:64px;--sp-64:48px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero{padding:36px 0 48px}
  .hero-card img{height:340px}
  .entry-strip{grid-template-columns:1fr 1fr}
  .bento-6,.bento-3,.bento-4,.bento-8{grid-column:span 12}
  .bento{gap:20px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:16px}
  .stat-band{padding:32px 24px;border-radius:var(--r-28)}
  .mosaic{grid-template-columns:1fr}
  .mosaic-main img{min-height:320px}
  .mosaic-side{flex-direction:row;flex-wrap:wrap}
  .mosaic-side .card-base{flex:1 1 260px}
  .mosaic-side .card-base:nth-child(2){transform:none}
  .news-grid{grid-template-columns:1fr 1fr}
  .faq-grid{grid-template-columns:1fr;gap:24px}
  .faq-sticky{position:static}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding-left:16px;padding-right:16px}
  .nav-panel{padding:10px 12px;border-radius:var(--r-20)}
  .brand-text b{font-size:15.5px}
  .brand-text em{font-size:10.5px;letter-spacing:.08em}
  .hero-actions .btn-brand,.hero-actions .btn-soft{flex:1 1 100%}
  .float-badge{position:static;margin-top:12px;min-width:0;width:100%}
  .hero-visual .float-badge{display:none}
  .badge-scroll{display:flex;gap:12px;overflow-x:auto;padding:14px 0 6px;scrollbar-width:none}
  .badge-scroll::-webkit-scrollbar{display:none}
  .badge-scroll .float-badge{display:flex;position:static;flex:0 0 auto;margin:0}
  .entry-strip{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .explain-card .grid-2{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr}
  .mosaic-side{flex-direction:column}
  .footer-grid{grid-template-columns:1fr}
  .form-card,.contact-info{border-radius:var(--r-28);padding:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  h1{font-size:1.85rem}
  .card-base{padding:22px;border-radius:var(--r-20)}
  .btn-brand,.btn-soft{padding:12px 20px;font-size:15px}
}

/* roulang page: article */
:root{
  --brand:#FF6A2C;
  --brand-2:#FF3D7F;
  --brand-3:#12C7B7;
  --brand-grad:linear-gradient(120deg,#FF6A2C 0%,#FF3D7F 48%,#12C7B7 100%);
  --ink:#14151B;
  --ink-2:#1D1F27;
  --paper:#F7F4EF;
  --paper-2:#FFFFFF;
  --mint:#E6FAF7;
  --peach:#FFF1E8;
  --text:#3A3D46;
  --text-weak:#6B6F7A;
  --line:rgba(20,21,27,.08);
  --line-dark:rgba(255,255,255,.12);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --r-xl:36px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,21,27,.06);
  --sh-2:0 18px 48px rgba(20,21,27,.12);
  --sec:96px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--paper);
  background-image:
    linear-gradient(rgba(20,21,27,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,21,27,.035) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.2}
p{margin:0 0 14px}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(255,106,44,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1280px;padding-left:24px;padding-right:24px;margin:0 auto}
.text-weak{color:var(--text-weak)}
.brand-grad-text{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ============ header / nav ============ */
.site-header{position:sticky;top:0;z-index:1040;padding:16px 0 8px}
.nav-panel{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:var(--ink);
  border:1px solid var(--line-dark);
  border-radius:var(--r-pill);
  padding:10px 14px 10px 18px;
  box-shadow:var(--sh-2);
}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand:hover{color:#fff}
.brand-mark{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-grad);color:#fff;font-size:18px;flex:0 0 42px;
  box-shadow:0 8px 22px rgba(255,61,127,.32);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:17px;font-weight:800;color:#fff;letter-spacing:.2px}
.brand-text em{font-style:normal;font-size:11px;color:rgba(255,255,255,.6);letter-spacing:.16em}
.nav-links{gap:8px;align-items:center}
.nav-card{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 15px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:rgba(255,255,255,.76);
  border:1px solid transparent;transition:all .22s ease;white-space:nowrap;
}
.nav-card i{font-size:13px;opacity:.85}
.nav-card:hover{color:#fff;background:rgba(255,255,255,.08);border-color:var(--line-dark);transform:translateY(-2px)}
.nav-card.active{
  color:#fff;background:rgba(255,255,255,.1);
  border-color:transparent;
  box-shadow:0 0 0 1px rgba(255,106,44,.6),0 0 0 3px rgba(18,199,183,.18);
}
.nav-right{gap:10px;align-items:center}
.nav-toggle{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line-dark);
  background:rgba(255,255,255,.06);color:#fff;font-size:18px;
}
.nav-toggle:hover{background:rgba(255,255,255,.12)}

.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border:0;border-radius:var(--r-pill);
  background:var(--brand-grad);color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 10px 26px rgba(255,61,127,.28);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  cursor:pointer;
}
.btn-brand:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,61,127,.34)}
.btn-brand:active{transform:translateY(0);filter:brightness(.98)}
.btn-brand.btn-sm{padding:9px 16px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-pill);
  border:1px solid rgba(20,21,27,.18);background:transparent;color:var(--ink);font-weight:700;font-size:15px;
  transition:all .2s ease;
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--paper-2);color:var(--ink);font-weight:700;font-size:15px;
  box-shadow:var(--sh-1);transition:all .2s ease;
}
.btn-soft:hover{transform:translateY(-2px);box-shadow:var(--sh-2);color:var(--ink)}

/* ============ article hero ============ */
.article-hero{padding:40px 0 8px}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-weak);margin-bottom:22px}
.crumb-list li{display:flex;align-items:center;gap:10px}
.crumb-list li+li::before{content:"";width:14px;height:1px;background:rgba(20,21,27,.22);display:inline-block}
.crumb-list a:hover{color:var(--brand)}
.article-head{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:38px 40px;box-shadow:var(--sh-1);position:relative;overflow:hidden;
}
.article-head::after{
  content:"";position:absolute;right:-80px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:var(--brand-grad);opacity:.1;filter:blur(6px);pointer-events:none;
}
.tag-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);font-size:12.5px;font-weight:700;
  background:rgba(255,106,44,.1);border:1px solid rgba(255,106,44,.35);color:#C4471A;
}
.tag-pill.teal{background:rgba(18,199,183,.12);border-color:rgba(18,199,183,.38);color:#0B7C72}
.article-head h1{
  font-size:clamp(2rem,4vw,3.5rem);line-height:1.15;letter-spacing:-.02em;
  margin:18px 0 18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--text-weak)}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:rgba(20,21,27,.2)}
.share-row{display:flex;gap:10px;margin-left:auto}
.share-btn{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:var(--paper-2);
  color:var(--ink);display:grid;place-items:center;font-size:14px;cursor:pointer;transition:all .2s ease;
}
.share-btn:hover{background:var(--peach);border-color:rgba(255,106,44,.4);color:var(--brand);transform:translateY(-2px)}

.cover-wrap{margin-top:26px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1)}
.cover-wrap img{width:100%;aspect-ratio:16/7;object-fit:cover}

/* ============ layout ============ */
.article-section{padding:56px 0 var(--sec)}
.article-body{
  max-width:800px;font-size:17px;line-height:1.95;color:var(--text);
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:44px 46px;box-shadow:var(--sh-1);
}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;padding-left:18px;
  font-size:clamp(1.35rem,2.2vw,1.7rem);margin:40px 0 16px;letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:6px;border-radius:var(--r-pill);
  background:var(--brand-grad);
}
.article-body h3{font-size:22px;margin:30px 0 12px;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:0}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:24px;margin-bottom:10px;color:var(--text);
}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:3px;background:var(--brand-grad);
}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.1em;
  font-size:13px;font-weight:800;color:var(--brand);
}
.article-body img{border-radius:var(--r-md);margin:24px 0;border:1px solid var(--line)}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;background:var(--peach);
  border-left:4px solid var(--brand);border-radius:0 var(--r-md) var(--r-md) 0;color:#7A4326;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(255,106,44,.35)}
.article-body a:hover{color:var(--brand-2);border-bottom-color:var(--brand-2)}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;overflow:hidden;border-radius:var(--r-sm)}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:var(--mint);color:#0B7C72;font-weight:700}
.article-body code{background:rgba(20,21,27,.06);padding:2px 7px;border-radius:7px;font-size:14px}
.article-body strong{color:var(--ink)}

/* ============ sidebar ============ */
.side-sticky{position:sticky;top:112px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
}
.side-card.dark{
  background:var(--ink);border-color:var(--line-dark);color:#F5F3EF;
}
.side-card.dark h3,.side-card.dark .side-title{color:#fff}
.side-title{font-size:16px;font-weight:800;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.side-title i{color:var(--brand)}
.rec-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line)}
.rec-item:last-child{border-bottom:0;padding-bottom:0}
.rec-thumb{width:74px;flex:0 0 74px;border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.rec-thumb img{width:100%;height:56px;object-fit:cover}
.rec-item h4{font-size:14.5px;line-height:1.5;font-weight:700;margin-bottom:4px}
.rec-item h4 a:hover{color:var(--brand)}
.rec-item span{font-size:12px;color:var(--text-weak)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{
  font-size:12.5px;padding:6px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(20,21,27,.02);color:var(--text-weak);
}
.tag-cloud a:hover{border-color:rgba(255,106,44,.45);color:var(--brand);background:var(--peach)}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-radius:14px;background:rgba(255,255,255,.06);
  border:1px solid var(--line-dark);font-size:14px;color:rgba(255,255,255,.86);margin-bottom:10px;
}
.side-links a:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateX(3px)}

/* ============ empty state ============ */
.empty-state{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:56px 40px;text-align:center;box-shadow:var(--sh-1);max-width:760px;
}
.empty-state i{font-size:34px;color:var(--brand);margin-bottom:16px;display:block}
.empty-state h2{font-size:24px;margin-bottom:12px}
.empty-state p{color:var(--text-weak);margin-bottom:24px}

/* ============ cta ============ */
.cta-band{
  background:var(--ink);border-radius:var(--r-xl);padding:52px 48px;color:#F5F3EF;
  position:relative;overflow:hidden;margin-top:36px;
}
.cta-band::before{
  content:"";position:absolute;left:-60px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:var(--brand-grad);opacity:.22;filter:blur(10px);
}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.25rem);margin-bottom:14px;position:relative}
.cta-band p{color:rgba(255,255,255,.72);max-width:620px;position:relative}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;position:relative}
.btn-onDark{
  display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:var(--r-pill);
  border:1px solid var(--line-dark);background:rgba(255,255,255,.08);color:#fff;font-weight:700;font-size:15px;
  transition:all .2s ease;
}
.btn-onDark:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-2px)}

/* ============ footer ============ */
.site-footer{
  margin-top:var(--sec);background:var(--ink);color:rgba(255,255,255,.72);
  border-radius:var(--r-lg) var(--r-lg) 0 0;position:relative;padding:60px 0 0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--brand-grad);
  border-radius:var(--r-lg) var(--r-lg) 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.3fr;gap:38px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand b{color:#fff;font-size:17px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px}
.site-footer p{font-size:14px;line-height:1.8;margin:0}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:#fff}
.footer-badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);
  font-size:12.5px;color:rgba(255,255,255,.86);
  background:linear-gradient(120deg,rgba(255,106,44,.18),rgba(18,199,183,.18));
  border:1px solid var(--line-dark);
}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ offcanvas ============ */
.mobile-nav{background:var(--ink);color:#fff;border-left:1px solid var(--line-dark);width:320px}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line-dark)}
.mobile-nav .btn-close{filter:invert(1) grayscale(1) brightness(2)}
.mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mobile-card{
  display:flex;flex-direction:column;gap:10px;padding:16px;border-radius:var(--r-md);
  background:rgba(255,255,255,.06);border:1px solid var(--line-dark);color:#fff;font-size:14px;font-weight:600;
}
.mobile-card i{font-size:18px;color:var(--brand-3)}
.mobile-card:hover{background:rgba(255,255,255,.12);color:#fff}
.mobile-card.active{border-color:rgba(255,106,44,.7);background:rgba(255,106,44,.14)}

/* ============ responsive ============ */
@media (max-width:1399.98px){
  .container{max-width:1180px}
}
@media (max-width:1199.98px){
  :root{--sec:80px}
  .article-body{padding:38px 34px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media (max-width:991.98px){
  :root{--sec:64px}
  .site-header{padding:12px 0 6px}
  .nav-panel{padding:10px 12px}
  .brand-text b{font-size:15px}
  .article-head{padding:28px 24px}
  .article-head h1{font-size:clamp(1.7rem,6vw,2.4rem)}
  .share-row{margin-left:0;width:100%}
  .article-section{padding:40px 0 var(--sec)}
  .article-body{padding:30px 22px;font-size:16.5px}
  .side-sticky{position:static;margin-top:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:38px 26px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .article-hero{padding:26px 0 4px}
  .cover-wrap img{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .article-head{padding:24px 18px;border-radius:var(--r-lg)}
  .article-body{padding:24px 18px;border-radius:var(--r-md)}
  .article-body h3{font-size:19px}
  .cta-band{border-radius:var(--r-lg)}
  .btn-brand,.btn-ghost,.btn-soft{width:100%}
  .cta-actions .btn-onDark{width:100%}
}

/* roulang page: category1 */
:root{
  --brand:#FF6A2C;
  --brand-2:#FF3D7F;
  --brand-3:#12C7B7;
  --ink:#14151B;
  --paper:#F7F4EF;
  --paper-2:#FFF1E8;
  --paper-3:#E6FAF7;
  --text:#3A3D46;
  --muted:#6B6F7A;
  --line:rgba(20,21,27,.08);
  --line-dark:rgba(255,255,255,.12);
  --r-s:12px;
  --r-m:20px;
  --r-l:28px;
  --r-xl:36px;
  --r-pill:999px;
  --sh-s:0 2px 8px rgba(20,21,27,.06);
  --sh-l:0 18px 48px rgba(20,21,27,.12);
  --grad:linear-gradient(120deg,#FF6A2C 0%,#FF3D7F 48%,#12C7B7 100%);
  --ease:.26s cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--paper);
  background-image:radial-gradient(rgba(20,21,27,.05) 1px, transparent 1px);
  background-size:24px 24px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
a:hover{color:#E24E16;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(255,106,44,.35);outline-offset:2px;border-radius:8px;}
.container{max-width:1280px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
.section{padding:clamp(48px,7vw,96px) 0;}
.section-tint{
  background:linear-gradient(180deg,rgba(255,241,232,0) 0%,rgba(255,241,232,.75) 16%,rgba(255,241,232,.75) 84%,rgba(255,241,232,0) 100%);
}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  padding:14px 0 18px;
  background:linear-gradient(180deg,rgba(247,244,239,.97) 0%,rgba(247,244,239,.88) 60%,rgba(247,244,239,0) 100%);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:14px;
  background:var(--ink);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-pill);
  padding:10px 14px 10px 16px;
  box-shadow:0 18px 48px rgba(20,21,27,.2);
}
.brand{display:flex;align-items:center;gap:11px;color:#fff;}
.brand:hover{color:#fff;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  border-radius:14px;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;
  box-shadow:0 8px 20px rgba(255,61,127,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-text b{font-size:15.5px;font-weight:700;letter-spacing:.01em;color:#fff;}
.brand-text em{font-style:normal;font-size:11px;color:rgba(255,255,255,.58);letter-spacing:.06em;}
.nav-links{margin-left:auto;display:flex;align-items:center;gap:6px;}
.nav-card{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;
  border-radius:var(--r-pill);
  font-size:14.5px;
  color:rgba(255,255,255,.76);
  border:1px solid transparent;
  background:rgba(255,255,255,.05);
  transition:all var(--ease);
  white-space:nowrap;
}
.nav-card i{font-size:13px;opacity:.85;}
.nav-card:hover{
  color:#fff;
  background:rgba(255,255,255,.12);
  transform:translateY(-1px);
}
.nav-card.active{
  color:#fff;
  font-weight:600;
  background:
    linear-gradient(rgba(255,255,255,.16),rgba(255,255,255,.16)) padding-box,
    var(--grad) border-box;
  border:1px solid transparent;
}
.nav-right{margin-left:8px;display:flex;align-items:center;}
.nav-toggle{
  margin-left:auto;
  width:44px;height:44px;
  border-radius:14px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  color:#fff;
  font-size:17px;
}
.nav-toggle:hover{background:rgba(255,255,255,.2);}

/* ---------- Buttons ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--grad);
  color:#fff;
  border:none;
  border-radius:var(--r-pill);
  padding:13px 24px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  box-shadow:0 10px 26px rgba(255,61,127,.26);
  transition:all var(--ease);
  cursor:pointer;
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 16px 34px rgba(255,61,127,.32);}
.btn-brand:active{transform:translateY(0);}
.btn-brand:focus-visible{outline:3px solid rgba(255,106,44,.35);outline-offset:2px;}
.btn-brand.btn-sm{padding:9px 18px;font-size:14px;}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;
  color:var(--ink);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:13px 24px;
  font-size:15px;
  font-weight:600;
  transition:all var(--ease);
  cursor:pointer;
}
.btn-outline:hover{color:var(--ink);border-color:rgba(255,106,44,.45);transform:translateY(-2px);box-shadow:var(--sh-s);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;
  color:#F5F3EF;
  border:1px solid rgba(255,255,255,.28);
  border-radius:var(--r-pill);
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  transition:all var(--ease);
}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.1);transform:translateY(-2px);}

/* ---------- Hero ---------- */
.hero-section{padding:8px 0 clamp(40px,5vw,64px);}
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:14px;color:var(--muted);margin-bottom:18px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb i{font-size:10px;opacity:.5;}
.hero-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  border:1px solid var(--line);
  background:linear-gradient(135deg,#FFFFFF 0%,#FFF1E8 58%,#E6FAF7 100%);
  box-shadow:var(--sh-l);
  padding:clamp(28px,4vw,52px);
}
.hero-card::before{
  content:"";
  position:absolute;
  width:420px;height:420px;
  right:-140px;top:-180px;
  border-radius:50%;
  background:var(--grad);
  opacity:.14;
  filter:blur(10px);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.3fr .9fr;gap:clamp(24px,3vw,40px);align-items:center;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;
  color:#C2431A;
  background:rgba(255,106,44,.1);
  border:1px solid rgba(255,106,44,.22);
  padding:6px 14px;border-radius:var(--r-pill);
  margin-bottom:18px;
}
.hero-copy h1{
  font-size:clamp(2rem,4vw,3.5rem);
  line-height:1.15;
  letter-spacing:-.02em;
  color:var(--ink);
  font-weight:800;
  margin-bottom:16px;
}
.hero-sub{font-size:17px;line-height:1.8;color:var(--muted);max-width:600px;margin-bottom:22px;}
.chips{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:26px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;
  padding:7px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,106,44,.08);
  border:1px solid rgba(255,106,44,.2);
  color:#B8431A;
}
.chip.c2{background:rgba(18,199,183,.09);border-color:rgba(18,199,183,.26);color:#0E8177;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;height:clamp(200px,24vw,268px);
  object-fit:cover;
  border-radius:var(--r-l);
  box-shadow:0 18px 44px rgba(20,21,27,.18);
}
.hero-visual::after{
  content:"";
  position:absolute;inset:0;
  border-radius:var(--r-l);
  background:linear-gradient(160deg,rgba(20,21,27,.34) 0%,rgba(255,106,44,.18) 60%,rgba(18,199,183,.22) 100%);
  pointer-events:none;
}
.hero-badge{
  position:absolute;
  display:flex;flex-direction:column;gap:2px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--line);
  border-radius:16px;
  padding:10px 14px;
  box-shadow:0 12px 28px rgba(20,21,27,.16);
  z-index:2;
}
.hero-badge b{font-size:20px;color:var(--ink);line-height:1.1;}
.hero-badge span{font-size:11.5px;color:var(--muted);}
.hero-badge.b1{left:-14px;bottom:22px;}
.hero-badge.b2{right:16px;top:18px;}

/* ---------- Section head ---------- */
.sec-head{max-width:790px;margin-bottom:clamp(28px,4vw,44px);}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;
  color:#C2431A;
  background:rgba(255,106,44,.1);
  border:1px solid rgba(255,106,44,.2);
  padding:6px 14px;border-radius:var(--r-pill);
}
.sec-head h2{
  font-size:clamp(1.5rem,2.6vw,2.25rem);
  line-height:1.26;
  letter-spacing:-.01em;
  color:var(--ink);
  font-weight:700;
  margin:14px 0 12px;
}
.sec-head p{color:var(--muted);font-size:16.5px;line-height:1.75;}

/* ---------- Topic list ---------- */
.side-row{align-items:flex-start;}
.topic-list{display:flex;flex-direction:column;gap:16px;}
.topic-card{
  display:flex;gap:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:18px;
  box-shadow:var(--sh-s);
  transition:all var(--ease);
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--sh-l);border-color:rgba(255,106,44,.24);}
.topic-thumb{position:relative;flex:0 0 132px;width:132px;height:104px;border-radius:var(--r-m);overflow:hidden;}
.topic-thumb img{width:100%;height:100%;object-fit:cover;}
.thumb-icon{
  position:absolute;left:9px;bottom:9px;
  width:34px;height:34px;border-radius:12px;
  background:var(--grad);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;
  box-shadow:0 8px 18px rgba(255,61,127,.32);
}
.topic-body{flex:1;min-width:0;}
.topic-body h3{font-size:clamp(18px,1.7vw,22px);line-height:1.4;color:var(--ink);font-weight:700;margin-bottom:8px;}
.topic-body p{font-size:15px;line-height:1.75;color:var(--text);margin-bottom:12px;}
.topic-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px;}
.tag{
  font-size:12px;
  padding:4px 11px;
  border-radius:var(--r-pill);
  background:var(--paper-2);
  color:#B8431A;
  border:1px solid rgba(255,106,44,.16);
}
.tag.c2{background:var(--paper-3);color:#0E8177;border-color:rgba(18,199,183,.22);}
.tag.c3{background:rgba(20,21,27,.05);color:var(--muted);border-color:var(--line);}
.topic-more{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;
  color:#C2431A;
}
.topic-more i{transition:transform var(--ease);}
.topic-more:hover i{transform:translateX(4px);}

/* ---------- Side card ---------- */
.side-card{
  position:sticky;
  top:104px;
  background:var(--ink);
  color:#F5F3EF;
  border-radius:var(--r-l);
  padding:26px;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 22px 54px rgba(20,21,27,.24);
}
.side-card h3{font-size:19px;color:#fff;font-weight:700;margin-bottom:8px;}
.side-card > p{font-size:14px;color:rgba(255,255,255,.7);line-height:1.75;margin-bottom:20px;}
.stat-badges{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:20px;}
.stat-badge{
  padding:14px;
  border-radius:var(--r-m);
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
}
.stat-badge b{display:block;font-size:26px;line-height:1.1;color:#fff;font-weight:800;letter-spacing:-.02em;}
.stat-badge span{font-size:12px;color:rgba(255,255,255,.7);}
.side-list{display:flex;flex-direction:column;gap:12px;margin-bottom:22px;}
.side-list li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.78);line-height:1.65;}
.side-list i{color:var(--brand-3);font-size:13px;margin-top:5px;}
.side-card .btn-brand{width:100%;}

/* ---------- Check grid ---------- */
.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.check-item{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:26px 24px;
  box-shadow:var(--sh-s);
  transition:all var(--ease);
}
.check-item:hover{transform:translateY(-4px);box-shadow:var(--sh-l);}
.check-item::before{
  content:"";
  position:absolute;left:24px;top:22px;
  width:34px;height:4px;border-radius:4px;
  background:var(--grad);
}
.check-num{display:block;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--muted);margin-bottom:34px;}
.check-item h3{font-size:19px;color:var(--ink);font-weight:700;margin-bottom:10px;}
.check-item p{font-size:14.5px;line-height:1.75;color:var(--text);}

/* ---------- Timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:0;}
.timeline li{position:relative;padding:58px 26px 0 0;}
.timeline li::before{
  content:"";
  position:absolute;top:13px;left:24px;right:-6px;height:2px;
  background:linear-gradient(90deg,rgba(255,106,44,.55),rgba(255,61,127,.45),rgba(18,199,183,.5));
}
.timeline li:last-child::before{display:none;}
.timeline li::after{
  content:"";
  position:absolute;top:5px;left:0;
  width:18px;height:18px;border-radius:50%;
  background:#fff;
  border:3px solid var(--brand);
  box-shadow:0 0 0 5px rgba(255,106,44,.1);
}
.step-num{display:block;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--brand);margin-bottom:8px;}
.timeline h3{font-size:18px;color:var(--ink);font-weight:700;margin-bottom:8px;line-height:1.4;}
.timeline p{font-size:14.5px;line-height:1.75;color:var(--text);}

/* ---------- Fix table ---------- */
.fix-list{display:flex;flex-direction:column;gap:14px;}
.fix-row{
  display:grid;grid-template-columns:.9fr 1.5fr;gap:24px;align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:22px 24px;
  box-shadow:var(--sh-s);
  transition:all var(--ease);
}
.fix-row:hover{transform:translateY(-3px);box-shadow:var(--sh-l);}
.fix-sym{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:700;color:var(--ink);}
.fix-sym i{
  width:38px;height:38px;flex:0 0 38px;
  border-radius:13px;
  background:rgba(255,106,44,.12);
  color:#E24E16;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;
}
.fix-act{font-size:15px;line-height:1.75;color:var(--text);}

/* ---------- Notice ---------- */
.notice-bar{
  display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-left:4px solid transparent;
  border-image:var(--grad) 1;
  border-radius:var(--r-m);
  padding:18px 22px;
  box-shadow:var(--sh-s);
  margin-bottom:14px;
}
.notice-bar:last-child{margin-bottom:0;}
.notice-bar i{color:var(--brand);font-size:15px;}
.notice-bar b{color:var(--ink);font-size:15.5px;}
.notice-bar span{font-size:14px;color:var(--muted);margin-left:auto;}

/* ---------- FAQ ---------- */
.faq-side{position:sticky;top:104px;}
.faq-side h2{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.26;color:var(--ink);font-weight:700;margin:14px 0 12px;}
.faq-side p{font-size:16px;color:var(--muted);line-height:1.75;margin-bottom:22px;}
.accordion-item{
  background:#fff;
  border:1px solid var(--line)!important;
  border-radius:var(--r-m)!important;
  overflow:hidden;
  margin-bottom:14px;
  box-shadow:var(--sh-s);
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  background:#fff;
  color:var(--ink);
  font-size:16.5px;
  font-weight:600;
  line-height:1.6;
  padding:20px 22px;
  border-radius:var(--r-m)!important;
  box-shadow:none!important;
  transition:background var(--ease),color var(--ease);
}
.accordion-button:not(.collapsed){background:var(--paper-2);color:#B8431A;}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
.accordion-button::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:12px;
  width:32px;height:32px;
  flex:0 0 32px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:rgba(255,106,44,.12);
  background-image:none;
  color:#E24E16;
  margin-left:16px;
  transition:all var(--ease);
}
.accordion-button:not(.collapsed)::after{
  content:"\f068";
  transform:none;
  background:var(--grad);
  color:#fff;
}
.accordion-body{
  padding:4px 22px 24px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper-2);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  border-radius:var(--r-xl);
  padding:clamp(32px,5vw,60px);
  color:#F5F3EF;
  border:1px solid rgba(255,255,255,.12);
}
.cta-band::before{
  content:"";
  position:absolute;
  width:480px;height:480px;
  right:-160px;bottom:-220px;
  border-radius:50%;
  background:var(--grad);
  opacity:.28;
  filter:blur(6px);
  pointer-events:none;
}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;}
.cta-inner h2{font-size:clamp(1.4rem,2.4vw,2.1rem);line-height:1.28;color:#fff;font-weight:700;margin-bottom:12px;max-width:600px;}
.cta-inner p{font-size:16px;color:rgba(255,255,255,.72);line-height:1.75;max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:clamp(56px,7vw,96px);
  background:var(--ink);
  color:rgba(255,255,255,.72);
  border-radius:28px 28px 0 0;
  position:relative;
  padding-top:clamp(40px,5vw,68px);
}
.site-footer::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--grad);
  border-radius:28px 28px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand b{font-size:16.5px;color:#fff;font-weight:700;}
.site-footer p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.68);}
.site-footer h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.68);}
.footer-links a:hover{color:var(--brand);}
.footer-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;
  padding:7px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  color:rgba(255,255,255,.8);
}
.footer-badge i{color:var(--brand-3);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13.5px;
  color:rgba(255,255,255,.55);
}

/* ---------- Mobile offcanvas ---------- */
.mobile-nav{background:var(--ink);color:#F5F3EF;border-left:1px solid rgba(255,255,255,.12);width:320px;}
.mobile-nav .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 20px;}
.mobile-nav .btn-close{filter:invert(1) grayscale(1);opacity:.7;}
.mobile-nav .offcanvas-body{padding:20px;}
.m-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.m-card{
  display:flex;flex-direction:column;gap:10px;
  padding:16px;
  border-radius:var(--r-m);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.82);
  font-size:14px;
  line-height:1.45;
}
.m-card i{font-size:17px;color:var(--brand);}
.m-card.active{
  background:
    linear-gradient(rgba(255,255,255,.14),rgba(255,255,255,.14)) padding-box,
    var(--grad) border-box;
  border:1px solid transparent;
  color:#fff;
}
.mobile-cta{padding:16px 20px 24px;border-top:1px solid rgba(255,255,255,.12);}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .container{max-width:100%;}
  .check-grid{grid-template-columns:repeat(2,1fr);}
  .timeline{grid-template-columns:repeat(3,1fr);row-gap:34px;}
  .timeline li:nth-child(3)::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:991px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual img{height:230px;}
  .hero-badge.b1{left:12px;bottom:12px;}
  .hero-badge.b2{right:12px;top:12px;}
  .side-card,.faq-side{position:static;}
  .section{padding:64px 0;}
  .timeline{grid-template-columns:repeat(2,1fr);}
  .timeline li:nth-child(3)::before{display:block;}
  .timeline li:nth-child(2n)::before{display:none;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:48px 0;}
  .nav-panel{padding:8px 10px 8px 12px;}
  .brand-text b{font-size:14.5px;}
  .brand-text em{display:none;}
  .topic-card{flex-direction:column;gap:14px;}
  .topic-thumb{width:100%;flex:0 0 auto;height:150px;}
  .check-grid{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;}
  .timeline li{padding:44px 0 0 0;}
  .timeline li::before{display:none;}
  .timeline li::after{left:0;}
  .fix-row{grid-template-columns:1fr;gap:12px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{flex:1 1 auto;}
  .hero-actions .btn-brand,.hero-actions .btn-outline{flex:1 1 auto;}
  .stat-badges{grid-template-columns:1fr 1fr;}
  .notice-bar span{margin-left:0;}
}
@media (max-width:519px){
  .brand-text b{font-size:13.5px;}
  .stat-badge b{font-size:22px;}
  .hero-visual img{height:190px;}
  .hero-badge{padding:8px 11px;}
  .hero-badge b{font-size:17px;}
}

/* roulang page: category2 */
:root{
  --brand:#FF6A2C;
  --brand-2:#FF3D7F;
  --brand-3:#12C7B7;
  --ink:#14151B;
  --paper:#F7F4EF;
  --soft-orange:#FFF1E8;
  --soft-cyan:#E6FAF7;
  --text:#3A3D46;
  --muted:#6B6F7A;
  --line:rgba(20,21,27,.08);
  --line-dark:rgba(255,255,255,.12);
  --grad:linear-gradient(120deg,#FF6A2C 0%,#FF3D7F 48%,#12C7B7 100%);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --r-xl:36px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,21,27,.06);
  --sh-2:0 18px 48px rgba(20,21,27,.12);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han 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:16.5px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--paper);
  background-image:
    linear-gradient(rgba(20,21,27,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,21,27,.04) 1px,transparent 1px);
  background-size:24px 24px;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--brand)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;font-weight:800}
p{margin:0 0 14px}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(255,106,44,.35);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

/* ============ header / nav ============ */
.site-header{position:sticky;top:16px;z-index:1030;padding:0 0 8px}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:rgba(20,21,27,.94);
  border:1px solid var(--line-dark);
  border-radius:var(--r-pill);
  padding:10px 14px 10px 18px;
  box-shadow:0 18px 48px rgba(20,21,27,.22);
  backdrop-filter:blur(14px);
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:#fff}
.brand:hover{color:#fff;opacity:.92}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:grid;place-items:center;
  border-radius:14px;
  background:var(--grad);
  color:#fff;font-size:17px;
  box-shadow:0 8px 20px rgba(255,61,127,.32);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:15.5px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.brand-text em{font-style:normal;font-size:11.5px;color:rgba(255,255,255,.62);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-card{
  position:relative;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:rgba(255,255,255,.74);
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-card i{font-size:13px;opacity:.85}
.nav-card:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateY(-1px)}
.nav-card.active{background:rgba(255,255,255,.10);color:#fff}
.nav-card.active::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-pill);padding:1px;
  background:var(--grad);pointer-events:none;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
}
.nav-right{display:flex;align-items:center;gap:10px}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:14px;
  background:rgba(255,255,255,.08);border:1px solid var(--line-dark);
  color:#fff;font-size:16px;display:grid;place-items:center;
}
.nav-toggle:hover{background:rgba(255,255,255,.16)}

/* offcanvas */
.offcanvas.mobile-nav{background:#14151B;color:#F5F3EF;border-right:1px solid var(--line-dark);width:min(88vw,360px)}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line-dark);padding:18px 20px}
.mobile-nav .offcanvas-title{font-size:15px;color:#fff;font-weight:800}
.mobile-nav .btn-close{filter:invert(1) grayscale(1);opacity:.8}
.mobile-nav-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:20px}
.m-nav-card{
  display:flex;flex-direction:column;gap:8px;
  padding:16px 14px;border-radius:var(--r-md);
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-dark);
  color:rgba(255,255,255,.86);font-size:13.5px;font-weight:600;
}
.m-nav-card i{font-size:18px;color:var(--brand-3)}
.m-nav-card.active{background:rgba(255,106,44,.14);border-color:rgba(255,106,44,.5)}
.m-nav-card:hover{background:rgba(255,255,255,.12);color:#fff}
.mobile-nav-cta{padding:0 20px 24px}

/* ============ buttons ============ */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border:none;border-radius:var(--r-pill);
  background:var(--grad);background-size:160% 160%;color:#fff;
  font-size:14.5px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  box-shadow:0 10px 26px rgba(255,61,127,.28);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 16px 34px rgba(255,61,127,.34)}
.btn-brand:active{transform:translateY(0);filter:brightness(.96)}
.btn-brand.btn-sm{padding:9px 18px;font-size:13.5px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);
  background:transparent;border:1px solid rgba(255,255,255,.42);
  color:#fff;font-size:14.5px;font-weight:700;cursor:pointer;
  transition:background .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);border-color:rgba(255,255,255,.7)}
.btn-soft{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink);
  font-size:14px;font-weight:700;cursor:pointer;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-soft:hover{color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(255,106,44,.4)}

/* ============ hero ============ */
.cat-hero{
  position:relative;margin-top:26px;border-radius:var(--r-xl);
  overflow:hidden;min-height:560px;display:flex;align-items:center;
  background:#14151B url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  box-shadow:var(--sh-2);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(20,21,27,.94) 0%,rgba(20,21,27,.82) 42%,rgba(20,21,27,.42) 100%);
}
.cat-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:var(--grad);filter:blur(90px);opacity:.34;pointer-events:none;
}
.cat-hero .hero-inner{position:relative;z-index:2;padding:72px 56px;max-width:820px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:20px}
.crumbs a{color:rgba(255,255,255,.78)}
.crumbs a:hover{color:#fff}
.crumbs span.sep{opacity:.5}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:12.5px;font-weight:600;letter-spacing:.06em;margin-bottom:22px;
}
.hero-tag i{color:var(--brand-3)}
.cat-hero h1{
  color:#fff;font-size:clamp(2rem,4vw,3.5rem);line-height:1.15;letter-spacing:-.02em;margin-bottom:18px;
}
.cat-hero h1 .grad-text{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17.5px;line-height:1.8;color:rgba(255,255,255,.78);max-width:600px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px}
.badge-pill{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.20);
  color:#fff;
}
.badge-pill b{font-size:19px;font-weight:800;letter-spacing:-.01em}
.badge-pill small{font-size:11.5px;color:rgba(255,255,255,.66);display:block;line-height:1.3}
.badge-pill i{color:var(--brand-3);font-size:15px}

/* ============ sections ============ */
.section{padding:96px 0 0}
.section-tight{padding:64px 0 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--brand);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:3px;border-radius:2px;background:var(--grad)}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.25;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16.5px;margin:0}

/* 错位卡片流 */
.stagger-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.stagger-col{display:flex;flex-direction:column;gap:28px}
.stagger-col.offset{padding-top:64px}
.flow-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,106,44,.28)}
.flow-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EFEAE3}
.flow-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.flow-card:hover .flow-media img{transform:scale(1.04)}
.flow-media .stamp{
  position:absolute;left:16px;top:16px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(20,21,27,.72);color:#fff;font-size:12px;font-weight:700;letter-spacing:.04em;
  backdrop-filter:blur(6px);
}
.flow-body{padding:26px 26px 28px}
.flow-body h3{font-size:22px;line-height:1.35;margin-bottom:12px}
.flow-body p{color:var(--muted);font-size:15.5px;margin-bottom:18px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;color:var(--brand);
  background:var(--soft-orange);border:1px solid rgba(255,106,44,.18);
}
.chip.cyan{color:#0E9E92;background:var(--soft-cyan);border-color:rgba(18,199,183,.22)}
.chip.dark{color:var(--muted);background:#F2EFE9;border-color:var(--line)}
.metric-row{display:flex;flex-wrap:wrap;gap:10px;padding-top:18px;border-top:1px dashed rgba(20,21,27,.12)}
.metric{
  padding:8px 14px;border-radius:var(--r-pill);
  background:linear-gradient(120deg,rgba(255,106,44,.12),rgba(18,199,183,.12));
  border:1px solid rgba(255,61,127,.25);
  display:inline-flex;align-items:baseline;gap:6px;
}
.metric b{font-size:16px;color:var(--ink);font-weight:800}
.metric span{font-size:11.5px;color:var(--muted)}

/* 深色数据带 */
.data-band{
  margin-top:96px;background:#14151B;border-radius:var(--r-xl);
  padding:52px 48px;color:#F5F3EF;position:relative;overflow:hidden;
  border:1px solid rgba(255,255,255,.10);
}
.data-band::before{
  content:"";position:absolute;left:-100px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:var(--grad);filter:blur(100px);opacity:.26;
}
.data-band .band-head{position:relative;z-index:2;margin-bottom:34px;max-width:640px}
.data-band h2{color:#fff;font-size:clamp(1.4rem,2.3vw,2rem);margin-bottom:10px}
.data-band p{color:rgba(255,255,255,.68);margin:0;font-size:15.5px}
.band-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.band-item{
  padding:24px 22px;border-radius:var(--r-md);
  background:rgba(255,255,255,.06);border:1px solid var(--line-dark);
  transition:background .24s ease,transform .24s ease;
}
.band-item:hover{background:rgba(255,255,255,.11);transform:translateY(-4px)}
.band-item b{display:block;font-size:32px;font-weight:800;letter-spacing:-.02em;line-height:1.1;margin-bottom:8px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.band-item span{font-size:12.5px;color:rgba(255,255,255,.68)}

/* 自检清单 */
.check-wrap{display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:start}
.check-intro{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px 32px;box-shadow:var(--sh-1);position:sticky;top:104px;
}
.check-intro h2{font-size:24px;margin-bottom:14px}
.check-intro p{color:var(--muted);font-size:15.5px}
.check-intro .btn-soft{margin-top:10px}
.check-list{display:flex;flex-direction:column;gap:14px}
.check-item{
  display:flex;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 24px;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.check-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(18,199,183,.34)}
.check-num{
  flex:0 0 46px;width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;font-weight:800;font-size:16px;color:#fff;
  background:var(--grad);box-shadow:0 8px 18px rgba(255,61,127,.24);
}
.check-item h3{font-size:17.5px;margin-bottom:6px}
.check-item p{margin:0;color:var(--muted);font-size:15px}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:36px;align-items:start}
.faq-side{position:sticky;top:104px}
.faq-side h2{font-size:clamp(1.4rem,2.2vw,1.95rem);margin-bottom:14px}
.faq-side p{color:var(--muted);font-size:15.5px}
.faq-side .btn-soft{margin-top:12px}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md)!important;
  overflow:hidden;margin-bottom:14px;background:#fff;box-shadow:var(--sh-1);
}
.accordion-button{
  background:#fff;color:var(--ink);font-weight:700;font-size:16.5px;
  padding:22px 24px;box-shadow:none!important;gap:14px;
}
.accordion-button:not(.collapsed){background:var(--soft-orange);color:var(--brand)}
.accordion-button::after{display:none}
.accordion-button .faq-icon{
  margin-left:auto;flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:12px;
  background:var(--soft-orange);color:var(--brand);border:1px solid rgba(255,106,44,.24);
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.accordion-button:not(.collapsed) .faq-icon{transform:rotate(180deg);background:var(--grad);color:#fff;border-color:transparent}
.accordion-body{padding:0 24px 24px;color:var(--muted);font-size:15.5px;line-height:1.85;background:#fff}
.accordion-collapse{transition:height .2s ease}

/* CTA banner */
.cta-banner{
  margin-top:96px;border-radius:var(--r-xl);overflow:hidden;position:relative;
  background:#14151B;color:#F5F3EF;
  padding:56px 52px;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
  border:1px solid rgba(255,255,255,.10);
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(255,106,44,.22),rgba(255,61,127,.16) 48%,rgba(18,199,183,.18));
  pointer-events:none;
}
.cta-banner .cta-copy{position:relative;z-index:2;max-width:660px}
.cta-banner h2{color:#fff;font-size:clamp(1.4rem,2.4vw,2rem);margin-bottom:12px}
.cta-banner p{color:rgba(255,255,255,.72);margin:0;font-size:15.5px}
.cta-banner .cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px}

/* 表单区 */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:stretch;margin-top:96px}
.contact-info{
  background:#14151B;color:#F5F3EF;border-radius:var(--r-xl);padding:40px 36px;
  border:1px solid rgba(255,255,255,.10);position:relative;overflow:hidden;
}
.contact-info::after{
  content:"";position:absolute;right:-80px;bottom:-100px;width:300px;height:300px;border-radius:50%;
  background:var(--grad);filter:blur(80px);opacity:.3;
}
.contact-info h2{color:#fff;font-size:24px;margin-bottom:14px}
.contact-info p{color:rgba(255,255,255,.7);font-size:15.5px}
.contact-info ul{position:relative;z-index:2;margin-top:24px;display:flex;flex-direction:column;gap:14px}
.contact-info li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.84)}
.contact-info li i{color:var(--brand-3);margin-top:4px}
.contact-form{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:40px 36px;box-shadow:var(--sh-1);
}
.contact-form h2{font-size:24px;margin-bottom:8px}
.contact-form .form-note{color:var(--muted);font-size:14.5px;margin-bottom:26px}
.form-label{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:8px}
.form-control,.form-select{
  height:48px;border-radius:14px;border:1px solid rgba(20,21,27,.14);
  background:#FCFAF7;font-size:15px;color:var(--text);padding:10px 16px;
}
textarea.form-control{height:auto;min-height:120px;padding:14px 16px;line-height:1.7}
.form-control:focus,.form-select:focus{
  background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,106,44,.18);
}
.form-check-input{width:20px;height:20px;border-radius:6px;border-color:rgba(20,21,27,.24);margin-top:2px}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand)}
.form-check-label{font-size:13.5px;color:var(--muted)}

/* ============ footer ============ */
.site-footer{margin-top:96px;background:#14151B;color:rgba(255,255,255,.72);border-radius:28px 28px 0 0;position:relative;overflow:hidden}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding:64px 0 40px;position:relative;z-index:2}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand b{color:#fff;font-size:16.5px;font-weight:800}
.site-footer p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66)}
.footer-badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.07);border:1px solid var(--line-dark);
  font-size:12.5px;color:rgba(255,255,255,.82);
}
.footer-badge i{color:var(--brand-3)}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);display:inline-flex;align-items:center;gap:8px}
.footer-links a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:.7}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);position:relative;z-index:2;
}

/* ============ responsive ============ */
@media (max-width:1199.98px){
  .container{padding:0 20px}
  .cat-hero .hero-inner{padding:64px 40px}
  .band-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-grid > div:last-child{grid-column:span 3}
}
@media (max-width:991.98px){
  .nav-panel{border-radius:24px;padding:10px 14px}
  .section{padding-top:64px}
  .data-band,.cta-banner{margin-top:64px;padding:40px 30px}
  .contact-grid{margin-top:64px;grid-template-columns:1fr}
  .check-wrap,.faq-wrap{grid-template-columns:1fr;gap:24px}
  .check-intro,.faq-side{position:static}
  .stagger-grid{grid-template-columns:1fr;gap:24px}
  .stagger-col.offset{padding-top:0}
  .site-footer{margin-top:64px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container{padding:0 16px}
  .site-header{top:10px}
  .cat-hero{min-height:auto;border-radius:28px;margin-top:16px}
  .cat-hero .hero-inner{padding:44px 24px}
  .hero-sub{font-size:16px}
  .hero-actions{gap:10px}
  .btn-brand,.btn-ghost{padding:11px 20px;font-size:14px}
  .section{padding-top:48px}
  .section-tight{padding-top:48px}
  .section-head{margin-bottom:28px}
  .band-grid{grid-template-columns:1fr 1fr;gap:14px}
  .band-item{padding:18px 16px}
  .band-item b{font-size:26px}
  .data-band,.cta-banner{margin-top:48px;border-radius:24px;padding:32px 22px}
  .flow-body{padding:22px 20px 24px}
  .flow-body h3{font-size:19.5px}
  .check-item{padding:18px 18px;gap:14px}
  .check-num{flex:0 0 40px;width:40px;height:40px;font-size:15px}
  .contact-info,.contact-form{border-radius:24px;padding:28px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:48px 0 28px}
  .footer-grid > div:last-child{grid-column:auto}
  .cta-banner .cta-actions{width:100%}
  .cta-banner .cta-actions .btn-brand,.cta-banner .cta-actions .btn-ghost{flex:1 1 auto}
}
@media (max-width:575.98px){
  .cat-hero h1{font-size:1.85rem}
  .hero-badges{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}
  .badge-pill{flex:0 0 auto}
  .band-grid{grid-template-columns:1fr}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%}
}