/* roulang page: index */
:root{
  --bg:#0A0B10;
  --bg-block:#101219;
  --bg-card:#171A24;
  --bg-soft:#F5F7FA;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#ECEFF4;
  --muted:#9AA3B2;
  --pink:#FF2D7A;
  --cyan:#14E3D2;
  --amber:#FFB020;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.75);
  --shadow-hover:0 10px 30px -12px rgba(255,45,122,.35);
  --container:1240px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;line-height:1.85;font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--cyan);text-decoration:none;transition:color .2s}
a:hover{text-decoration:underline;text-underline-offset:3px}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text)}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.18;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3}
h3{font-size:20px;line-height:1.5}
p{margin:0}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 clamp(16px,4vw,40px)}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(10,11,16,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,rgba(255,45,122,0) 0%,#FF2D7A 34%,#14E3D2 66%,rgba(20,227,210,0) 100%);opacity:.85}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.01em;color:var(--text);white-space:nowrap}
.brand:hover{text-decoration:none;color:#fff}
.brand-mark{position:relative;flex:0 0 auto;width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,#FF2D7A,#14E3D2);box-shadow:0 6px 18px -8px rgba(255,45,122,.85),inset 0 0 0 1px rgba(255,255,255,.14)}
.brand-mark::after{content:"";position:absolute;inset:9px;border-radius:3px;background:#0A0B10}
.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
.nav-link{position:relative;display:inline-block;padding:10px 12px;font-size:15px;color:var(--muted);border-radius:10px;transition:color .2s,background .2s,transform .2s}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);text-decoration:none;transform:translateY(-1px)}
.nav-link.is-active{color:#fff;text-shadow:0 0 14px rgba(255,45,122,.6)}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:linear-gradient(90deg,#FF2D7A,#14E3D2)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:4px;width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid var(--line);cursor:pointer;padding:0 10px}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text)}
.nav-toggle:hover{border-color:rgba(20,227,210,.5)}
.nav-toggle:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.mobile-drawer{display:none;position:fixed;left:0;right:0;top:68px;bottom:0;z-index:70;background:rgba(10,11,16,.98);padding:14px clamp(16px,4vw,40px) 40px;overflow-y:auto}
body.drawer-open .mobile-drawer{display:block}
.drawer-link{display:flex;align-items:center;height:56px;padding:0 14px;color:var(--text);font-size:16px;border-left:3px solid transparent;border-bottom:1px solid var(--line)}
.drawer-link:hover{text-decoration:none;background:rgba(255,255,255,.05)}
.drawer-link.is-active{border-left-color:var(--pink);background:rgba(255,45,122,.1)}
.drawer-cta{margin-top:18px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;text-align:center;transition:filter .2s,transform .15s,background .2s,border-color .2s,color .2s,box-shadow .2s}
.btn:hover{text-decoration:none}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.btn--primary{background:linear-gradient(45deg,#FF2D7A,#14E3D2);color:#0A0B10}
.btn--primary:hover{filter:brightness(1.08);box-shadow:0 10px 30px -12px rgba(255,45,122,.7)}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--cyan)}
.btn--ghost:hover{background:rgba(20,227,210,.12);border-color:rgba(20,227,210,.5)}
.btn--ghost:active{transform:translateY(1px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn--pill{border-radius:999px}
.text-link{color:var(--cyan);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.text-link:hover{text-decoration:underline;text-underline-offset:3px;color:#5ff6ea}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;transform:scale(1.02)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,11,16,.94) 0%,rgba(10,11,16,.58) 52%,rgba(10,11,16,.22) 100%)}
.hero-lines{position:absolute;inset:0;opacity:.5;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 88%);mask-image:linear-gradient(180deg,#000,transparent 88%)}
.hero-inner{position:relative;z-index:2;padding:clamp(56px,8vw,112px) 0 clamp(48px,7vw,96px)}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;padding:6px 14px;border-radius:999px;background:rgba(255,45,122,.12);border:1px solid rgba(255,45,122,.4);color:#ffd0e2;font-size:13px;letter-spacing:.04em;margin-bottom:22px}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);display:block}
.hero-title{margin-bottom:20px;max-width:15em}
.hero-title em{font-style:normal;background:linear-gradient(90deg,#FF2D7A,#14E3D2);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:#C7CEDA;font-size:clamp(15px,1.3vw,18px);max-width:34em;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.metric-row{display:flex;flex-wrap:wrap;gap:12px}
.metric{flex:1 1 150px;min-width:140px;padding:14px 16px;border-radius:14px;background:rgba(23,26,36,.72);border:1px solid var(--line);backdrop-filter:blur(6px)}
.metric b{display:block;font-size:24px;line-height:1.2;color:#fff;font-variant-numeric:tabular-nums}
.metric span{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.hero-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-panel);overflow:hidden;box-shadow:0 30px 60px -30px rgba(0,0,0,.95)}
.hero-card__media{aspect-ratio:16/10;overflow:hidden;position:relative}
.hero-card__media img{width:100%;height:100%;object-fit:cover}
.hero-card__body{padding:22px 22px 26px}
.chip{display:inline-block;font-size:12px;letter-spacing:.08em;padding:4px 12px;border-radius:999px;border:1px solid rgba(255,176,32,.45);color:var(--amber);margin-bottom:12px}
.hero-card__body h2{font-size:21px;line-height:1.45;margin-bottom:10px}
.hero-card__body p{color:var(--muted);font-size:15px;margin-bottom:16px}
.mini-list li{position:relative;padding-left:18px;color:#C7CEDA;font-size:14.5px;line-height:1.9}
.mini-list li::before{content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:2px;background:linear-gradient(135deg,#FF2D7A,#14E3D2)}

/* ---------- sections ---------- */
.section{padding:clamp(56px,7.5vw,110px) 0;position:relative}
.section--alt{background:var(--bg-block);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:clamp(32px,4vw,56px)}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.14em;color:var(--cyan);margin-bottom:14px}
.section-title{margin-bottom:14px}
.section-desc{color:var(--muted);font-size:16px;max-width:660px}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:clamp(28px,3.5vw,48px)}

/* ---------- pain list ---------- */
.pain-list{border-bottom:1px solid var(--line)}
.pain-item{display:grid;grid-template-columns:110px 1fr;gap:clamp(16px,3vw,36px);align-items:start;padding:clamp(22px,3vw,34px) 0;border-top:1px solid var(--line)}
.pain-item:nth-child(2){padding-left:clamp(0px,3vw,44px)}
.pain-item:nth-child(3){padding-left:clamp(0px,6vw,88px)}
.pain-num{font-size:clamp(34px,4vw,44px);font-weight:800;line-height:1;color:rgba(255,45,122,.16);-webkit-text-stroke:1.4px rgba(255,45,122,.85);font-variant-numeric:tabular-nums}
.pain-body h3{margin-bottom:10px;font-size:21px}
.pain-body p{color:var(--muted);max-width:62ch}

/* ---------- z rows ---------- */
.zrow{margin-bottom:clamp(36px,4.5vw,64px)!important;align-items:center}
.zrow:last-child{margin-bottom:0!important}
.z-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.z-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.z-text .zh-index{display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--amber);margin-bottom:12px}
.z-text h3{font-size:clamp(21px,2.2vw,26px);margin-bottom:14px}
.z-text p{color:var(--muted);margin-bottom:14px}
.check-list li{position:relative;padding-left:22px;color:#C7CEDA;font-size:15px;line-height:2}
.check-list li::before{content:"";position:absolute;left:0;top:13px;width:11px;height:2px;border-radius:2px;background:linear-gradient(90deg,#FF2D7A,#14E3D2)}

/* ---------- stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2.4vw,32px);margin-top:clamp(24px,3vw,40px)}
.stat{padding-bottom:16px;border-bottom:1px solid var(--line)}
.stat-num{font-size:clamp(28px,3.2vw,42px);font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;background:linear-gradient(90deg,#FF2D7A,#14E3D2);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-label{display:block;color:#C7CEDA;font-size:15px;margin-top:8px}
.stat-note{display:block;color:var(--muted);font-size:13.5px;margin-top:4px}
.stat-track{height:6px;border-radius:99px;background:rgba(255,255,255,.07);overflow:hidden;margin-top:14px}
.stat-fill{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#FF2D7A,#14E3D2)}

/* ---------- cards ---------- */
.card{display:flex;flex-direction:column;height:100%;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-4px);border-color:rgba(255,45,122,.45);box-shadow:var(--shadow-hover)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0d0f16}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.card:hover .card-media img{transform:scale(1.05)}
.badge{position:absolute;top:12px;left:12px;font-size:12px;line-height:1;padding:6px 11px;border-radius:999px;background:rgba(10,11,16,.78);border:1px solid rgba(20,227,210,.42);color:var(--cyan);backdrop-filter:blur(6px)}
.card-body{display:flex;flex-direction:column;flex:1 1 auto;padding:20px 20px 22px}
.card-title{font-size:18px;line-height:1.5;margin-bottom:10px}
.card-title a{color:var(--text)}
.card-title a:hover{color:var(--cyan);text-decoration:none}
.card-desc{color:var(--muted);font-size:14.5px;margin-bottom:18px}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.time{color:var(--amber);font-size:13.5px;font-variant-numeric:tabular-nums}
.empty-state{border:1px dashed rgba(255,255,255,.22);border-radius:var(--r-card);padding:40px 24px;text-align:center;color:var(--muted)}
.empty-state .text-link{margin-top:10px}

/* ---------- panel / form ---------- */
.panel{background:var(--bg-block);border:1px solid var(--line);border-radius:var(--r-panel);padding:clamp(24px,3.2vw,44px)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px}
.input{width:100%;height:48px;padding:0 14px;border-radius:12px;background:rgba(10,11,16,.72);border:1px solid var(--line);color:var(--text);transition:border-color .2s,box-shadow .2s}
.input::placeholder{color:#6B7484}
.input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(20,227,210,.16)}
.form-hint{font-size:13.5px;color:var(--muted);margin-top:12px}
.notice-ok{color:var(--cyan);font-size:14px;margin-top:12px}
.notice-err{color:var(--pink);font-size:14px;margin-top:12px}
.info-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;height:100%}
.info-card h3{font-size:17px;margin-bottom:10px}
.info-card p{color:var(--muted);font-size:14.5px}

/* ---------- quotes ---------- */
.quotes{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 20px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.quotes::-webkit-scrollbar{height:6px}
.quotes::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:99px}
.quote{flex:0 0 min(360px,84vw);scroll-snap-align:start;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-card)}
.quote::before{content:"\201C";display:block;font-size:56px;line-height:.7;color:rgba(20,227,210,.35);margin-bottom:14px}
.quote p{color:#C7CEDA;font-size:15px;margin-bottom:18px}
.quote footer{font-size:13.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}
.quote footer b{display:block;color:var(--text);font-size:14.5px;margin-bottom:2px}

/* ---------- FAQ ---------- */
.faq-wrap{background:var(--bg-soft);border-radius:var(--r-panel);padding:clamp(18px,2.6vw,32px);box-shadow:0 30px 60px -40px rgba(0,0,0,.9)}
.faq-item{border-bottom:1px solid rgba(19,23,34,.1)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:12px 16px;background:none;border:0;border-left:3px solid rgba(255,45,122,.28);text-align:left;color:#131722;font-size:16px;font-weight:600;cursor:pointer;transition:border-color .2s,background .2s}
.faq-q:hover{background:rgba(255,45,122,.05);border-left-color:var(--pink)}
.faq-q:focus-visible{outline:2px solid #0f7f76;outline-offset:2px}
.faq-icon{flex:0 0 auto;width:20px;height:20px;transition:transform .3s ease;color:#FF2D7A}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-item.open .faq-q{border-left-color:var(--pink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-item.open .faq-a{max-height:400px}
.faq-a p{padding:4px 18px 20px;color:#414A5A;font-size:15px;line-height:1.8}

/* ---------- cta ---------- */
.cta-panel{position:relative;border-radius:var(--r-panel);padding:clamp(28px,4vw,56px);background:linear-gradient(120deg,rgba(255,45,122,.16),rgba(20,227,210,.1));overflow:hidden}
.cta-panel::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(120deg,#FF2D7A,#14E3D2);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.cta-panel h2{margin-bottom:14px}
.cta-panel p{color:#C7CEDA;max-width:62ch;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- footer ---------- */
.site-footer{background:#08090E;border-top:1px solid var(--line);padding:clamp(40px,5vw,72px) 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:clamp(24px,3vw,40px)}
.footer-brand p{color:var(--muted);font-size:14.5px;margin:16px 0 18px;max-width:34ch}
.social{display:flex;gap:10px}
.social a{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;border:1px solid var(--line-strong);color:var(--muted);transition:color .2s,border-color .2s,transform .2s}
.social a:hover{color:var(--cyan);border-color:rgba(20,227,210,.6);transform:translateY(-2px);text-decoration:none}
.footer-col h3{font-size:15px;margin-bottom:16px;color:#fff;letter-spacing:.03em}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted);font-size:14.5px}
.footer-col a:hover{color:var(--cyan);text-decoration:none}
.footer-col span{color:var(--muted);font-size:14.5px}
.copy-bar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);margin-top:clamp(28px,3.5vw,44px);padding-top:20px;color:var(--muted);font-size:13.5px}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-link{padding:10px 9px;font-size:14.5px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .hero-inner{padding:56px 0 64px}
  .hero-title{max-width:none}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  body{font-size:16px}
  .pain-item{grid-template-columns:64px 1fr;gap:16px}
  .pain-item:nth-child(2),.pain-item:nth-child(3){padding-left:0}
  .zrow{margin-bottom:32px!important}
  .stat-grid{grid-template-columns:1fr 1fr;gap:18px}
  .hero-actions .btn{flex:1 1 100%}
  .head-row{align-items:flex-start}
}
@media (max-width:520px){
  .brand{font-size:16px}
  .hero{min-height:520px}
  .stat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions .btn{flex:1 1 100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --bg:#0A0B10;
  --panel:#101219;
  --card:#171A24;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#ECEFF4;
  --muted:#9AA3B2;
  --brand:#FF2D7A;
  --brand2:#14E3D2;
  --amber:#FFB020;
  --radius-s:12px;
  --radius-m:16px;
  --radius-l:20px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.75);
  --shadow-hi:0 10px 30px -12px rgba(255,45,122,.35);
  --maxw:1240px;
  --pad:clamp(16px,4vw,40px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.01em;color:var(--text);margin:0}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.18;margin:0 0 .5em}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;margin:0 0 .9em}
h3{font-size:21px;line-height:1.5;margin:0 0 .6em}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
a{color:var(--brand2);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:#5cf3e6;text-decoration:underline;text-underline-offset:3px}
img{max-width:100%;display:block;border-radius:14px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--brand2);outline-offset:3px;border-radius:6px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);width:100%}
.section{padding:96px 0}
.section--tight{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand2);margin-bottom:14px;font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand2);display:block}
.lead{color:var(--muted);font-size:17px;max-width:760px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,11,16,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand) 30%,var(--brand2) 70%,transparent);
}
.header-inner{display:flex;align-items:center;gap:26px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.logo:hover{text-decoration:none}
.logo-mark{
  width:26px;height:26px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand),var(--brand2));
  box-shadow:0 0 18px rgba(255,45,122,.55);
  position:relative;flex:0 0 auto;
}
.logo-mark::after{
  content:"";position:absolute;inset:7px;border-radius:3px;
  background:var(--bg);
}
.logo-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.02em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:14.5px;
  color:var(--muted);
  border-radius:var(--radius-s);
  transition:color .2s ease,transform .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);text-decoration:none;transform:translateY(-1px)}
.nav-link.is-active{color:var(--text);text-shadow:0 0 14px rgba(255,45,122,.6)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand2));
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:var(--radius-s);
  background:transparent;border:1px solid var(--line-strong);
  position:relative;
}
.nav-toggle span{
  position:absolute;left:11px;right:11px;height:2px;border-radius:2px;
  background:var(--text);transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle span:nth-child(1){top:14px}
.nav-toggle span:nth-child(2){top:20px}
.nav-toggle span:nth-child(3){top:26px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-s);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;
  transition:filter .2s ease,transform .15s ease,background .2s ease,border-color .2s ease,color .2s ease;
  text-decoration:none;white-space:nowrap;
}
.btn:hover{text-decoration:none}
.btn-primary{
  background:linear-gradient(45deg,var(--brand),var(--brand2));
  color:#0A0B10;
  box-shadow:0 10px 26px -14px rgba(255,45,122,.85);
}
.btn-primary:hover{filter:brightness(1.08);color:#0A0B10;box-shadow:0 14px 34px -14px rgba(20,227,210,.75)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:transparent;border-color:rgba(20,227,210,.45);color:var(--brand2);
}
.btn-ghost:hover{background:rgba(20,227,210,.12);color:var(--brand2)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:22px 0 0;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand2)}
.breadcrumb .sep{color:rgba(255,255,255,.28)}
.breadcrumb .current{color:var(--muted)}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  margin-top:24px;
  border-radius:var(--radius-l);
  overflow:hidden;
  border:1px solid var(--line);
  background-image:
    linear-gradient(100deg,rgba(10,11,16,.95) 0%,rgba(10,11,16,.72) 46%,rgba(10,11,16,.32) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  padding:clamp(34px,5vw,68px);
  box-shadow:var(--shadow);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:46px 46px;
  pointer-events:none;
}
.cat-hero-inner{position:relative;max-width:760px}
.cat-hero h1{margin-bottom:.45em}
.cat-hero h1 em{
  font-style:normal;
  background:linear-gradient(90deg,var(--brand),var(--brand2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--muted);font-size:17.5px;line-height:1.8;margin-bottom:26px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px}
.hero-stat{
  background:rgba(23,26,36,.86);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:14px 20px;
  min-width:150px;
}
.hero-stat b{
  display:block;font-size:24px;font-weight:700;color:var(--text);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.hero-stat span{font-size:13px;color:var(--muted)}

/* ---------- Layout ---------- */
.layout-row{align-items:flex-start}
.col-main{padding-right:22px}
.col-side{padding-left:22px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:34px}
.section-head .lead{margin:0}
.section-head h2{margin-bottom:0}

/* ---------- Feed list ---------- */
.feed{border-top:1px solid var(--line)}
.feed-item{
  display:flex;gap:22px;
  padding:28px 0;
  border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.feed-item:hover{background:rgba(255,255,255,.02)}
.feed-thumb{
  position:relative;
  flex:0 0 210px;
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(135deg,#1d2130,#12141c);
}
.feed-thumb img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.feed-item:hover .feed-thumb img{transform:scale(1.05)}
.badge{
  position:absolute;top:10px;left:10px;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:999px;
  background:rgba(10,11,16,.82);
  border:1px solid rgba(255,45,122,.5);
  color:#ffd0e4;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.feed-body{flex:1 1 auto;min-width:0}
.feed-body h3{font-size:20px;margin-bottom:.5em;transition:color .2s ease}
.feed-item:hover .feed-body h3{color:var(--brand2)}
.feed-body p{font-size:15.5px;color:var(--muted);margin-bottom:.55em;line-height:1.8}
.feed-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin-top:4px}
.feed-meta .time{color:var(--amber);font-variant-numeric:tabular-nums}
.feed-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.24)}

/* ---------- Side sticky ---------- */
.sticky-panel{
  position:sticky;top:96px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:26px 24px;
  box-shadow:var(--shadow);
}
.panel-title{font-size:13px;letter-spacing:.14em;color:var(--brand2);font-weight:600;margin-bottom:18px}
.anchor-list{border-left:2px solid rgba(255,45,122,.35);padding-left:0}
.anchor-list li{position:relative}
.anchor-list a{
  display:block;
  padding:9px 0 9px 18px;
  font-size:14.5px;
  color:var(--muted);
  position:relative;
  transition:color .2s ease,padding-left .2s ease;
}
.anchor-list a::before{
  content:"";position:absolute;left:-2px;top:16px;width:6px;height:6px;border-radius:50%;
  background:var(--brand);opacity:0;transition:opacity .2s ease,transform .2s ease;
  transform:translateX(-2px);
}
.anchor-list a:hover{color:var(--text);text-decoration:none;padding-left:22px}
.anchor-list a:hover::before{opacity:1}
.side-note{
  margin-top:22px;padding-top:20px;border-top:1px solid var(--line);
  font-size:14px;color:var(--muted);line-height:1.8;
}
.side-note strong{color:var(--text);font-weight:600}

/* ---------- Rhythm timeline ---------- */
.rhythm{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.rhythm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.rhythm-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:28px 26px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.rhythm-item:hover{transform:translateY(-4px);border-color:rgba(255,45,122,.45);box-shadow:var(--shadow-hi)}
.rhythm-item .num{
  display:block;font-size:13px;letter-spacing:.18em;color:var(--brand2);margin-bottom:14px;font-weight:600;
}
.rhythm-item h3{font-size:19px;margin-bottom:.5em}
.rhythm-item p{font-size:15px;color:var(--muted);margin:0;line-height:1.8}

/* ---------- Metrics ---------- */
.metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{
  padding:24px 0;
  border-top:1px solid var(--line);
  position:relative;
}
.metric::after{
  content:"";position:absolute;top:-1px;left:0;width:52px;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand2));
}
.metric b{display:block;font-size:38px;line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.metric b i{font-style:normal;font-size:17px;color:var(--muted);margin-left:6px;font-weight:500}
.metric span{display:block;font-size:14px;color:var(--muted);margin-top:8px}

/* ---------- Value blocks ---------- */
.value-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.value-media{border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.value-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.value-list li{
  display:flex;gap:16px;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.value-list li:last-child{border-bottom:none}
.value-list .idx{
  flex:0 0 40px;
  font-size:20px;font-weight:700;
  font-variant-numeric:tabular-nums;
  color:transparent;
  -webkit-text-stroke:1px rgba(255,45,122,.75);
  line-height:1.5;
}
.value-list h3{font-size:17.5px;margin-bottom:.35em}
.value-list p{font-size:15px;color:var(--muted);margin:0;line-height:1.8}

/* ---------- FAQ ---------- */
.faq-wrap{background:#F5F7FA;border-radius:var(--radius-l);padding:clamp(28px,4vw,50px);color:#141822}
.faq-wrap h2{color:#141822}
.faq-wrap .eyebrow{color:#c2145c}
.faq-wrap .eyebrow::before{background:#c2145c}
.faq-wrap .lead{color:#4a5162}
.faq-list{margin-top:30px;border-top:1px solid rgba(20,24,34,.12)}
.faq-list details{border-bottom:1px solid rgba(20,24,34,.12)}
.faq-list summary{
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 0 14px 18px;
  font-size:16.5px;font-weight:600;color:#141822;cursor:pointer;
  position:relative;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand2));border-radius:2px;
}
.faq-list summary .chev{
  flex:0 0 auto;width:22px;height:22px;color:#c2145c;
  transition:transform .25s ease;
}
.faq-list details[open] summary .chev{transform:rotate(180deg)}
.faq-list .ans{padding:0 0 20px 18px;font-size:15px;line-height:1.85;color:#4a5162;max-width:820px}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;
  border-radius:var(--radius-l);
  padding:clamp(32px,5vw,58px);
  background:
    radial-gradient(900px 320px at 12% -20%,rgba(255,45,122,.28),transparent 60%),
    radial-gradient(700px 300px at 92% 120%,rgba(20,227,210,.24),transparent 62%),
    var(--card);
  overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;border-radius:var(--radius-l);padding:1px;
  background:linear-gradient(120deg,rgba(255,45,122,.7),rgba(20,227,210,.7),rgba(255,45,122,.2));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  pointer-events:none;
}
.cta-panel h2{max-width:640px}
.cta-panel p{color:var(--muted);max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:28px;align-items:center}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--panel);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:96px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14.5px;color:var(--muted);line-height:1.85;max-width:320px}
.footer-col h4{font-size:13px;letter-spacing:.14em;color:var(--text);margin-bottom:18px;font-weight:600}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14.5px;color:var(--muted)}
.footer-col a:hover{color:var(--brand2)}
.footer-col .txt{font-size:14.5px;color:var(--muted)}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:var(--muted);
}
.footer-bottom .hint a{color:var(--brand2)}
.socials{display:flex;gap:10px}
.socials a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line-strong);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:13px;
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.socials a:hover{color:var(--brand2);border-color:rgba(20,227,210,.6);transform:translateY(-2px);text-decoration:none}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .col-main{padding-right:0}
  .col-side{padding-left:0;margin-top:40px}
  .sticky-panel{position:static}
}
@media (max-width:1023px){
  .nav-links{
    position:fixed;top:69px;left:0;right:0;
    height:calc(100vh - 69px);
    background:#0A0B10;
    flex-direction:column;align-items:stretch;
    padding:16px var(--pad) 40px;
    gap:2px;
    overflow-y:auto;
    transform:translateY(-10px);
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
    margin-left:0;
  }
  .nav-links.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
  .nav-link{
    min-height:56px;display:flex;align-items:center;
    font-size:16px;padding-left:16px;
    border-left:2px solid transparent;
  }
  .nav-link.is-active{border-left-color:var(--brand);background:rgba(255,45,122,.06)}
  .nav-link.is-active::after{display:none}
  .nav-toggle{display:block}
  .header-actions .btn-header{display:none}
  .value-grid{grid-template-columns:1fr;gap:28px}
  .rhythm-grid{grid-template-columns:1fr}
  .metric-row{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:72px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .feed-item{flex-direction:column;gap:16px}
  .feed-thumb{flex:1 1 auto;width:100%}
  .hero-stat{flex:1 1 140px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .cat-hero{margin-top:16px;border-radius:var(--radius-m)}
}
@media (max-width:520px){
  .logo-text{font-size:16px}
  .metric-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .hero-stat{min-width:0}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --magenta:#FF2D7A;
  --cyan:#14E3D2;
  --amber:#FFB020;
  --bg:#0A0B10;
  --bg-2:#101219;
  --card:#171A24;
  --line:rgba(255,255,255,.08);
  --text:#ECEFF4;
  --muted:#9AA3B2;
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:12px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.75);
  --shadow-hover:0 10px 30px -12px rgba(255,45,122,.35);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body,p,li,td,th,input,textarea,select{font-family:var(--font)}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--cyan);text-decoration:none;transition:color .22s ease,border-color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4,h5,h6{font-family:var(--font);color:var(--text);font-weight:700;margin:0;letter-spacing:.01em}
ul,ol{margin:0;padding:0}
button{font-family:var(--font)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 clamp(16px,4vw,40px)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,11,16,.9);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,var(--magenta) 32%,var(--cyan) 68%,transparent);
}
.nav-inner{display:flex;align-items:center;gap:18px;min-height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:17.5px;letter-spacing:.02em;flex:0 0 auto}
.logo:hover{color:var(--text);text-decoration:none}
.logo-mark{
  width:26px;height:26px;border-radius:9px;position:relative;flex:0 0 auto;
  background:linear-gradient(135deg,var(--magenta),var(--cyan));
  box-shadow:0 0 18px rgba(255,45,122,.45);
}
.logo-mark::after{content:"";position:absolute;inset:7px;border-radius:4px;background:var(--bg)}
.logo-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 12px;border-radius:10px;
  font-size:14.5px;color:var(--muted);white-space:nowrap;
  transition:color .2s ease,background .2s ease,transform .2s ease;
}
.nav-link:hover{color:var(--text);text-decoration:none;background:rgba(255,255,255,.05);transform:translateY(-1px)}
.nav-link.is-active{color:var(--text);text-shadow:0 0 14px rgba(20,227,210,.35)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--magenta),var(--cyan));
  box-shadow:0 0 12px rgba(255,45,122,.6);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:10px}
.nav-cta{
  display:inline-flex;align-items:center;padding:10px 18px;border-radius:999px;
  font-size:14px;font-weight:600;color:#0A0B10;
  background:linear-gradient(45deg,var(--magenta),var(--cyan));
  border:0;transition:filter .2s ease,box-shadow .2s ease,transform .15s ease;
}
.nav-cta:hover{color:#0A0B10;text-decoration:none;filter:brightness(1.08);box-shadow:0 10px 26px -12px rgba(255,45,122,.7)}
.nav-cta:active{transform:translateY(1px)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);cursor:pointer;
}
.nav-toggle span{display:block;position:relative;width:18px;height:2px;border-radius:2px;background:var(--text)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-drawer{display:none;border-top:1px solid var(--line);background:#0B0C12}
.nav-drawer.is-open{display:block}
.nav-drawer a{
  display:block;min-height:56px;line-height:56px;padding:0 22px;
  border-left:3px solid transparent;color:var(--text);font-size:15.5px;
}
.nav-drawer a:hover{background:rgba(255,255,255,.05);text-decoration:none}
.nav-drawer a.is-active{border-left-color:var(--magenta);color:var(--cyan)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;transition:filter .2s ease,box-shadow .2s ease,transform .15s ease,background .2s ease,color .2s ease;
}
.btn-primary{background:linear-gradient(45deg,var(--magenta),var(--cyan));color:#0A0B10}
.btn-primary:hover{color:#0A0B10;text-decoration:none;filter:brightness(1.08);box-shadow:0 14px 32px -14px rgba(255,45,122,.75)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--cyan)}
.btn-ghost:hover{background:rgba(20,227,210,.12);color:var(--cyan);text-decoration:none;border-color:rgba(20,227,210,.5)}
.btn-ghost:active{transform:translateY(1px)}
.btn-pill{border-radius:999px}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:18px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);line-height:1.7}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--cyan);text-decoration:none}
.breadcrumb .sep{color:rgba(154,163,178,.55)}
.breadcrumb .crumb-mid{color:var(--muted)}
.breadcrumb .crumb-current{
  color:#C7CEDA;max-width:min(560px,60vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;margin-top:18px;padding:44px 0 52px;
  background-image:linear-gradient(100deg,rgba(10,11,16,.95) 0%,rgba(10,11,16,.72) 46%,rgba(10,11,16,.42) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
}
.article-hero .container-x{position:relative;z-index:1}
.cat-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.06em;line-height:1.6;
  color:var(--cyan);background:rgba(20,227,210,.12);border:1px solid rgba(20,227,210,.32);
}
.article-title{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.18;
  margin:20px 0 18px;
  max-width:940px;
  word-break:break-word;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px;font-size:14px;color:var(--muted);line-height:1.7}
.meta-item{display:inline-flex;align-items:center;gap:8px}
.meta-dot{width:5px;height:5px;border-radius:50%;background:var(--cyan);opacity:.8}
.meta-time{color:var(--amber);font-variant-numeric:tabular-nums;font-weight:600}

/* ---------- 主体布局 ---------- */
.main-wrap{padding:clamp(40px,5.5vw,76px) 0 clamp(56px,7vw,96px)}
.layout-grid{display:flex;flex-wrap:wrap}
.article-col{width:100%}
.sidebar-col{width:100%}
@media screen and (min-width:1024px){
  .article-col{width:70%}
  .sidebar-col{width:30%}
  .article-col{padding-right:24px}
  .sidebar-col{padding-left:4px}
}

/* ---------- 正文区 ---------- */
.article-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  padding:clamp(20px,3.6vw,46px);
  box-shadow:var(--shadow-card);
}
.article-content{max-width:820px;font-size:16.5px;line-height:1.9;color:#E2E7F0;overflow-wrap:break-word}
.article-content > *:first-child{margin-top:0}
.article-content h2{
  position:relative;font-size:clamp(22px,2.4vw,30px);line-height:1.35;
  margin:2.2em 0 .9em;padding-left:16px;color:#fff;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--magenta),var(--cyan));
}
.article-content h3{font-size:20px;line-height:1.5;margin:1.8em 0 .7em;color:#fff}
.article-content h4{font-size:17.5px;line-height:1.55;margin:1.6em 0 .6em;color:#F1F4F9}
.article-content p{margin:0 0 1.25em}
.article-content a{color:var(--cyan);border-bottom:1px solid rgba(20,227,210,.4)}
.article-content a:hover{text-decoration:none;border-bottom-color:var(--cyan)}
.article-content strong{color:#fff}
.article-content ul,.article-content ol{margin:0 0 1.25em 1.35em;padding-left:.6em}
.article-content li{margin:.42em 0}
.article-content img{border-radius:14px;margin:1.6em auto;box-shadow:var(--shadow-card)}
.article-content figure{margin:1.8em 0}
.article-content figcaption{font-size:13.5px;color:var(--muted);text-align:center;margin-top:12px}
.article-content blockquote{
  margin:1.7em 0;padding:16px 20px;border-left:3px solid var(--cyan);
  background:rgba(20,227,210,.07);border-radius:0 12px 12px 0;color:#CFD7E3;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content table{width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15px;display:block;overflow-x:auto}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
.article-content thead th{background:rgba(255,255,255,.05);color:#fff;font-weight:600}
.article-content tbody tr:nth-child(even){background:rgba(255,255,255,.028)}
.article-content code{background:rgba(255,255,255,.09);padding:2px 7px;border-radius:6px;font-size:14px;color:#F6D9E6}
.article-content pre{
  background:#0C0E15;border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;overflow-x:auto;margin:1.7em 0;
}
.article-content pre code{background:transparent;padding:0;color:#D9E2EE}
.article-content hr{border:0;height:1px;background:var(--line);margin:2.4em 0}
.article-empty{
  max-width:820px;padding:24px;border:1px dashed rgba(255,255,255,.18);
  border-radius:var(--radius-card);background:rgba(255,255,255,.02);
}
.article-empty h2{font-size:24px;margin:0 0 12px}
.article-empty p{margin:0 0 20px;color:var(--muted);font-size:15.5px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  font-size:13px;color:var(--muted);border:1px solid rgba(255,255,255,.13);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.tag:hover{color:var(--cyan);border-color:rgba(20,227,210,.45);background:rgba(20,227,210,.08);text-decoration:none}

/* ---------- 侧栏 ---------- */
.sidebar-inner{display:block}
@media screen and (min-width:1024px){
  .sidebar-inner{position:sticky;top:92px}
}
.sidebar-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;margin-bottom:20px;box-shadow:var(--shadow-card);
}
.sidebar-title{
  display:flex;align-items:center;gap:9px;
  font-size:14.5px;font-weight:700;letter-spacing:.04em;color:#fff;margin:0 0 14px;
}
.sidebar-title::before{
  content:"";width:3px;height:14px;border-radius:3px;
  background:linear-gradient(180deg,var(--magenta),var(--cyan));
}
.toc-list{list-style:none;margin:0;padding:0 0 0 14px;border-left:1px solid rgba(255,45,122,.35)}
.toc-list li{margin:0}
.toc-list a{
  display:block;padding:6px 0;font-size:14.5px;line-height:1.65;color:var(--muted);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{color:var(--cyan);text-decoration:none}
.mini-list{list-style:none;margin:0;padding:0}
.mini-list li{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.mini-list li:last-child{border-bottom:0;padding-bottom:0}
.mini-list a{display:block;font-size:15px;line-height:1.6;color:#DCE2EC}
.mini-list a:hover{color:var(--cyan);text-decoration:none}
.mini-meta{display:block;margin-top:6px;font-size:13px;color:var(--amber);font-variant-numeric:tabular-nums}
.sidebar-cta{margin-top:6px}
.sidebar-cta p{font-size:14.5px;color:var(--muted);margin:0 0 16px;line-height:1.75}
.sidebar-cta .btn{width:100%}

/* ---------- 相关推荐 ---------- */
.section-block{margin-top:clamp(48px,6vw,80px)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:26px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3}
.section-link{font-size:14.5px;color:var(--cyan);white-space:nowrap}
.related-grid{display:flex;flex-wrap:wrap;margin:0 -12px}
.related-cell{padding:0 12px 24px;width:100%}
@media screen and (min-width:640px){.related-cell{width:50%}}
@media screen and (min-width:1024px){.related-cell{width:33.3333%}}
.post-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(255,45,122,.45);box-shadow:var(--shadow-hover);text-decoration:none}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,rgba(255,45,122,.35),rgba(20,227,210,.25))}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-badge{
  position:absolute;top:12px;left:12px;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--cyan);
  background:rgba(10,11,16,.78);border:1px solid rgba(20,227,210,.35);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.post-title{
  font-size:17px;line-height:1.5;margin:0 0 10px;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.post-card:hover .post-title{color:var(--cyan)}
.post-excerpt{
  font-size:14.5px;line-height:1.7;color:var(--muted);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px}
.post-time{color:var(--amber);font-variant-numeric:tabular-nums;font-weight:600}
.post-more{color:var(--cyan);font-weight:600}

/* ---------- 返回入口 ---------- */
.back-bar{margin-top:36px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;color:var(--muted);
  padding:10px 18px;border-radius:999px;border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.back-link:hover{color:var(--cyan);border-color:rgba(20,227,210,.45);background:rgba(20,227,210,.08);text-decoration:none}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;margin-top:clamp(48px,6vw,80px);
  padding:clamp(28px,4vw,52px);border-radius:var(--radius-panel);
  background:linear-gradient(120deg,rgba(255,45,122,.14),rgba(20,227,210,.1)),var(--bg-2);
  overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;border-radius:var(--radius-panel);padding:1px;
  background:linear-gradient(120deg,var(--magenta),var(--cyan));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.cta-panel h2{font-size:clamp(22px,2.6vw,32px);line-height:1.32;margin:0 0 14px;max-width:720px}
.cta-panel p{color:var(--muted);font-size:15.5px;line-height:1.8;max-width:700px;margin:0 0 24px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- 页脚 ---------- */
.site-footer{background:#08090D;border-top:1px solid var(--line);padding:64px 0 28px;margin-top:clamp(56px,7vw,96px)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand .logo{margin-bottom:16px}
.footer-desc{font-size:14.5px;line-height:1.85;color:var(--muted);margin:0 0 16px;max-width:340px}
.footer-tip{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;
  font-size:13.5px;color:var(--muted);background:rgba(255,255,255,.04);border:1px solid var(--line);
}
.footer-tip b{color:var(--cyan);font-weight:600}
.footer-col h4{font-size:15px;margin:0 0 16px;color:#fff;letter-spacing:.03em}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links a{display:block;padding:7px 0;font-size:14.5px;color:var(--muted)}
.footer-links a:hover{color:var(--cyan);text-decoration:none}
.footer-info{font-size:14px;color:var(--muted);line-height:1.9;margin:0}
.footer-info span{color:var(--amber);font-variant-numeric:tabular-nums}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13.5px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--cyan);text-decoration:none}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1080px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions{margin-left:auto}
}
@media screen and (max-width:1023px){
  body{font-size:16px}
  .article-content{max-width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-desc{max-width:100%}
}
@media screen and (max-width:767px){
  .article-hero{padding:32px 0 40px}
  .article-title{margin:16px 0 14px}
  .article-meta{gap:8px 16px;font-size:13.5px}
  .crumb-current{max-width:52vw}
}
@media screen and (max-width:639px){
  body{font-size:15.8px;line-height:1.8}
  .article-panel{border-radius:var(--radius-card);padding:20px 18px}
  .article-content h2{padding-left:13px;font-size:21px}
  .related-grid{margin:0}
  .related-cell{padding:0 0 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-actions .btn{width:100%}
  .cta-actions{flex-direction:column;align-items:stretch}
  .back-bar .back-link{width:100%;justify-content:center}
  .breadcrumb .crumb-current{max-width:64vw}
}
@media screen and (max-width:360px){
  .logo-text{font-size:15.5px}
  .container-x{padding:0 14px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
}

/* roulang page: category2 */
:root{
  --bg:#0A0B10;
  --bg-2:#101219;
  --card:#171A24;
  --surface:#F5F7FA;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --ink:#ECEFF4;
  --ink-2:#9AA3B2;
  --ink-dark:#1B2030;
  --ink-dark-2:#5A6478;
  --brand:#FF2D7A;
  --brand-2:#14E3D2;
  --amber:#FFB020;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-img:14px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.75);
  --shadow-hover:0 10px 30px -12px rgba(255,45,122,.35);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand-2);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,opacity .2s ease}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px}
button{font-family:inherit;font-size:inherit;cursor:pointer}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:clamp(16px,4vw,40px);
  padding-right:clamp(16px,4vw,40px);
}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.18;font-weight:800;letter-spacing:.2px}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;margin-top:2em}
h3{font-size:clamp(19px,1.6vw,22px);line-height:1.5;font-weight:700}
p{font-size:16.5px;line-height:1.85}
p + p{margin-top:1.25em}
.section{padding:clamp(56px,7vw,104px) 0;position:relative}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,52px)}
.section-head h2{margin-top:0}
.section-head p{color:var(--ink-2);margin-top:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--brand-2);font-weight:600;
  padding:6px 14px;border:1px solid rgba(20,227,210,.32);
  border-radius:999px;background:rgba(20,227,210,.07);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(255,45,122,.9)}
.lead{color:var(--ink-2);font-size:17px}
strong{color:#fff;font-weight:600}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15.5px;font-weight:600;line-height:1.2;text-align:center;
  transition:transform .18s ease,filter .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(45deg,#FF2D7A,#14E3D2);color:#0A0B10;box-shadow:0 12px 26px -14px rgba(255,45,122,.85)}
.btn-primary:hover{color:#0A0B10;filter:brightness(1.08);box-shadow:0 16px 32px -12px rgba(255,45,122,.9)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--brand-2)}
.btn-ghost:hover{background:rgba(20,227,210,.12);color:var(--brand-2);border-color:rgba(20,227,210,.5)}
.btn-sm{padding:10px 20px;font-size:14.5px}
.btn-block{width:100%}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,11,16,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(255,45,122,0),#FF2D7A 35%,#14E3D2 65%,rgba(20,227,210,0));
  opacity:.85;
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:17px;letter-spacing:.4px;flex-shrink:0}
.logo:hover{color:#fff;text-decoration:none}
.logo-mark{
  position:relative;width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,#FF2D7A,#14E3D2);
  box-shadow:0 0 18px -4px rgba(255,45,122,.8);
}
.logo-mark::after{
  content:"";position:absolute;inset:8px 9px;border-radius:3px;
  background:var(--bg);transform:skewX(-12deg);
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:999px;
  color:var(--ink-2);font-size:15px;font-weight:500;
  transition:color .2s ease,background-color .2s ease,transform .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);text-decoration:none;transform:translateY(-1px)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#FF2D7A,#14E3D2);
  box-shadow:0 0 12px rgba(255,45,122,.85);
}
.nav-cta{margin-left:16px;flex-shrink:0}
.nav-toggle{
  display:none;margin-left:auto;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--ink);border-radius:10px;padding:8px 12px;font-size:14px;
}
.nav-toggle:hover{border-color:rgba(20,227,210,.5);color:var(--brand-2)}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13px;color:var(--ink-2);display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand-2)}
.breadcrumb .sep{color:rgba(255,255,255,.28)}
.breadcrumb .current{color:var(--ink-2)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:clamp(40px,5vw,72px) 0 clamp(56px,6vw,88px);
  background-image:
    linear-gradient(100deg,rgba(10,11,16,.95),rgba(10,11,16,.6) 55%,rgba(10,11,16,.24)),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 44px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 44px);
}
.hero .container{position:relative;z-index:1}
.hero-grid{margin-top:26px}
.hero h1{margin-top:18px}
.hero h1 em{font-style:normal;background:linear-gradient(45deg,#FF2D7A,#14E3D2);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:16px;font-size:clamp(17px,1.6vw,20px);color:#fff;font-weight:600;max-width:620px}
.hero-lead{margin-top:16px;color:var(--ink-2);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.hero-stats .stat-num{display:block;font-size:clamp(22px,2.4vw,30px);font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stats .stat-num span{font-size:14px;color:var(--brand-2);margin-left:3px;font-weight:600}
.hero-stats .stat-label{font-size:13.5px;color:var(--ink-2);margin-top:4px;display:block}
.hero-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-card-body{padding:24px 24px 26px}
.hero-card-body h2{font-size:20px;margin-top:12px}
.hero-card-body p{color:var(--ink-2);font-size:15px;margin-top:10px}
.hero-card .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-block;padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:1.7;font-weight:600;
  background:rgba(20,227,210,.1);color:var(--brand-2);border:1px solid rgba(20,227,210,.28);
}
.tag--brand{background:rgba(255,45,122,.12);color:#FF7EB0;border-color:rgba(255,45,122,.34)}
.tag--amber{background:rgba(255,176,32,.12);color:var(--amber);border-color:rgba(255,176,32,.3)}

/* ---------- 索引横卡 ---------- */
.index-list{display:flex;flex-direction:column;gap:16px;margin-top:8px}
.index-row{
  position:relative;display:flex;align-items:center;gap:clamp(16px,3vw,34px);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(20px,2.6vw,30px);box-shadow:var(--shadow);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.index-row::before{
  content:"";position:absolute;left:0;top:18%;bottom:18%;width:3px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,#FF2D7A,#14E3D2);opacity:.65;transition:opacity .22s ease;
}
.index-row:hover{
  transform:translateY(-4px);
  border-color:rgba(255,45,122,.45);
  box-shadow:var(--shadow),var(--shadow-hover);
}
.index-row:hover::before{opacity:1}
.index-num{
  flex:0 0 auto;min-width:88px;
  font-size:clamp(34px,4vw,46px);font-weight:900;line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:-1px;
  color:rgba(255,45,122,.9);
}
@supports (-webkit-text-stroke:1px #000){
  .index-num{color:transparent;-webkit-text-stroke:1.4px rgba(255,45,122,.9)}
}
.index-body{flex:1 1 auto;min-width:0}
.index-body h3{font-size:20px;color:#fff;transition:color .2s ease}
.index-row:hover .index-body h3{color:var(--brand-2)}
.index-body p{margin-top:10px;color:var(--ink-2);font-size:15.5px}
.index-body .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.index-arrow{
  flex:0 0 auto;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);color:var(--ink-2);
  transition:transform .22s ease,color .22s ease,border-color .22s ease,background-color .22s ease;
}
.index-row:hover .index-arrow{
  transform:translateX(4px);color:#0A0B10;border-color:transparent;
  background:linear-gradient(45deg,#FF2D7A,#14E3D2);
}
.index-arrow svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 阅读路径 ---------- */
.path-grid{align-items:center}
.path-img{border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.path-img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.path-steps{display:flex;flex-direction:column;gap:0;margin-top:28px}
.step{display:flex;gap:20px;padding:22px 0;border-top:1px solid var(--line)}
.step:last-child{border-bottom:1px solid var(--line)}
.step-no{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
  color:var(--brand-2);background:rgba(20,227,210,.09);border:1px solid rgba(20,227,210,.28);
}
.step h3{font-size:18px;margin-bottom:6px}
.step p{color:var(--ink-2);font-size:15.5px}

/* ---------- 指标条 ---------- */
.metrics{display:flex;flex-direction:column;gap:26px}
.metric .metric-top{display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.metric .metric-name{font-size:15.5px;color:var(--ink)}
.metric .metric-val{font-size:24px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums}
.metric .bar{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;margin-top:12px}
.metric .bar > i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#FF2D7A,#14E3D2)}
.metric-note{margin-top:14px;color:var(--ink-2);font-size:14px}

/* ---------- FAQ ---------- */
.faq-wrap{background:var(--surface);border-radius:var(--r-panel);padding:clamp(22px,3vw,40px);color:var(--ink-dark)}
.faq-wrap h2{color:var(--ink-dark);margin-top:0}
.faq-wrap .section-head p{color:var(--ink-dark-2)}
.faq-list{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid rgba(27,32,48,.1);border-radius:var(--r-card);
  overflow:hidden;box-shadow:0 12px 26px -22px rgba(12,17,32,.6);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(255,45,122,.4);box-shadow:0 16px 34px -22px rgba(255,45,122,.55)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:16px;
  min-height:56px;padding:14px 20px;
  font-size:16px;font-weight:700;color:var(--ink-dark);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,#FF2D7A,#14E3D2);
}
.faq-item summary .faq-icon{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(27,32,48,.16);color:#5A6478;font-size:14px;line-height:1;
  transition:transform .25s ease,color .25s ease,border-color .25s ease;
}
.faq-item[open] summary .faq-icon{transform:rotate(180deg);color:var(--brand);border-color:rgba(255,45,122,.4)}
.faq-item .faq-answer{
  padding:0 20px 20px 40px;font-size:15px;line-height:1.8;color:#404A5E;
}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;border-radius:var(--r-panel);
  padding:clamp(30px,4.6vw,60px);
  background:radial-gradient(120% 140% at 10% 0%,rgba(255,45,122,.22),rgba(10,11,16,0) 55%),
             radial-gradient(120% 140% at 100% 100%,rgba(20,227,210,.2),rgba(10,11,16,0) 55%),
             var(--card);
  border:1px solid transparent;
  background-clip:padding-box;
  box-shadow:var(--shadow);
  overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:linear-gradient(120deg,#FF2D7A,#14E3D2);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  pointer-events:none;
}
.cta-panel h2{margin-top:0}
.cta-panel p{color:var(--ink-2);margin-top:16px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;align-items:center}
.text-link{color:var(--brand-2);font-weight:600;font-size:15.5px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);margin-top:0;padding:clamp(48px,6vw,80px) 0 28px}
.footer-grid{gap:36px 24px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--ink-2);font-size:15px;max-width:320px}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-list li{margin-bottom:12px}
.footer-list a{color:var(--ink-2);font-size:15px}
.footer-list a:hover{color:var(--brand-2)}
.footer-contact li{color:var(--ink-2);font-size:15px;margin-bottom:12px}
.footer-contact b{color:var(--ink);font-weight:600}
.social{display:flex;gap:12px;margin-top:20px}
.social a{
  width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--ink-2);
}
.social a:hover{color:var(--brand-2);border-color:rgba(20,227,210,.5);background:rgba(20,227,210,.08);text-decoration:none}
.social svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--ink-2);font-size:13.5px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-link{font-size:14px;padding:8px 10px}
  .nav-cta{margin-left:10px;padding:9px 16px;font-size:14px}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;align-items:center;gap:6px}
  .nav-cta{display:none}
  .nav-links{
    position:fixed;top:68px;left:0;right:0;bottom:0;z-index:55;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(10,11,16,.98);
    padding:18px clamp(16px,4vw,40px) 40px;
    overflow-y:auto;
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}
  .nav-link{display:flex;align-items:center;height:56px;border-radius:10px;font-size:16px;padding:0 16px;border-bottom:1px solid var(--line)}
  .nav-link.is-active{background:rgba(255,255,255,.04)}
  .nav-link.is-active::after{left:0;top:14px;bottom:14px;right:auto;width:3px;height:auto;border-radius:0 3px 3px 0;background:linear-gradient(180deg,#FF2D7A,#14E3D2)}
  .index-row{flex-direction:column;align-items:flex-start}
  .index-arrow{display:none}
}
@media (max-width:767px){
  body{font-size:16px}
  .hero{padding-top:32px}
  .hero-stats{grid-template-columns:1fr;gap:14px}
  .hero-stats .stat{display:flex;align-items:baseline;gap:10px}
  .hero-stats .stat-label{margin-top:0}
  .hero-actions .btn{width:100%}
  .index-num{min-width:auto;font-size:34px}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .index-body h3{font-size:18px}
  .section{padding:56px 0}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --brand:#FF2D7A;
  --brand-2:#14E3D2;
  --amber:#FFB020;
  --bg:#0A0B10;
  --bg-block:#101219;
  --bg-card:#171A24;
  --bg-soft:#F5F7FA;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.16);
  --text:#ECEFF4;
  --muted:#9AA3B2;
  --ink:#0A0B10;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-img:14px;
  --sh-card:0 18px 40px -20px rgba(0,0,0,.75);
  --sh-hover:0 10px 30px -12px rgba(255,45,122,.35);
  --sec:clamp(56px,8vw,112px);
  --container:1240px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-2);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:#7ef4ea;text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:8px}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{list-style:none;padding:0}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.18;font-weight:700;letter-spacing:-.01em;color:#fff}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;color:#fff}
h3{font-size:20px;line-height:1.5;font-weight:600;color:#fff}
::selection{background:rgba(255,45,122,.45);color:#fff}

/* ---------- 栅格覆盖：Foundation gutter 调整为 24px ---------- */
.grid-padding-x{margin-left:-12px;margin-right:-12px}
.grid-padding-x>.cell{padding-left:12px;padding-right:12px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:clamp(16px,4vw,40px);padding-right:clamp(16px,4vw,40px)}
.section{padding:var(--sec) 0;position:relative}
.section--alt{background:var(--bg-block);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:clamp(28px,4vw,48px)}
.section-head h2{margin-top:14px}
.section-head p{margin-top:16px;color:var(--muted);font-size:16.5px;max-width:720px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.16em;color:var(--brand-2);font-weight:600}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--brand-2))}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:filter .22s ease,background .22s ease,color .22s ease,transform .18s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-primary{background:linear-gradient(45deg,var(--brand),var(--brand-2));color:var(--ink)}
.btn-primary:hover{color:var(--ink);text-decoration:none;filter:brightness(1.08);box-shadow:0 0 26px -4px rgba(255,45,122,.65)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(20,227,210,.45);color:var(--brand-2)}
.btn-ghost:hover{background:rgba(20,227,210,.12);color:var(--brand-2);text-decoration:none}
.btn-ghost:active{transform:translateY(1px)}
.btn-link{color:var(--brand-2);font-weight:600;padding:12px 4px}
.btn-link:hover{text-decoration:underline;text-underline-offset:4px}
.btn-lg{padding:15px 30px;font-size:16px;border-radius:14px}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(10,11,16,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--brand-2),transparent);
}
.nav-inner{
  max-width:var(--container);margin:0 auto;height:68px;
  padding:0 clamp(16px,4vw,40px);
  display:flex;align-items:center;gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:26px;height:26px;flex:none;border-radius:8px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 18px rgba(255,45,122,.55);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px;background:var(--bg);
  border-radius:2px;transform:rotate(45deg);
}
.brand-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center;flex-wrap:nowrap}
.nav-link{
  position:relative;padding:9px 13px;border-radius:999px;
  font-size:14.8px;color:var(--muted);white-space:nowrap;
  transition:color .2s ease,background .2s ease,transform .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.055);text-decoration:none;transform:translateY(-1px)}
.nav-link.is-active{color:#fff;text-shadow:0 0 12px rgba(255,45,122,.55)}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:-3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  box-shadow:0 0 10px rgba(255,45,122,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;flex:none;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle:hover{border-color:rgba(20,227,210,.45);background:rgba(20,227,210,.1)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  position:fixed;left:0;right:0;top:68px;bottom:0;z-index:65;
  background:rgba(10,11,16,.98);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  padding:16px clamp(16px,4vw,40px) 40px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .26s ease,transform .26s ease,visibility .26s;
  overflow-y:auto;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:none}
.mobile-drawer a{
  display:flex;align-items:center;height:56px;padding-left:16px;
  border-left:3px solid transparent;border-bottom:1px solid var(--line);
  color:var(--muted);font-size:16px;
}
.mobile-drawer a:hover{color:#fff;text-decoration:none}
.mobile-drawer a.is-active{color:#fff;border-left-color:var(--brand);text-shadow:0 0 12px rgba(255,45,122,.5)}
.mobile-drawer .drawer-cta{margin-top:24px}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:clamp(48px,8vw,104px) 0 clamp(44px,7vw,88px);
  background:
    linear-gradient(100deg,rgba(10,11,16,.96) 0%,rgba(10,11,16,.8) 42%,rgba(10,11,16,.44) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(100deg,rgba(0,0,0,.9),transparent 74%);
  mask-image:linear-gradient(100deg,rgba(0,0,0,.9),transparent 74%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:24px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand-2)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .cur{color:#c3cad6}
.page-hero h1{margin-top:16px;max-width:920px}
.hero-sub{margin-top:20px;font-size:clamp(16px,1.6vw,18px);color:#c6cdd9;max-width:780px}
.hero-stats{margin-top:38px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-width:760px}
.hero-stat{
  background:rgba(23,26,36,.75);border:1px solid var(--line);
  border-radius:14px;padding:16px 18px;
  transition:border-color .22s ease,transform .22s ease;
}
.hero-stat:hover{border-color:rgba(255,45,122,.4);transform:translateY(-3px)}
.hero-stat b{display:block;font-size:24px;line-height:1.2;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.hero-stat span{display:block;margin-top:4px;font-size:13px;color:var(--muted)}

/* ---------- 服务通道对照表 ---------- */
.spec-table{
  border:1px solid var(--line);border-radius:var(--r-panel);
  background:var(--bg-block);overflow:hidden;box-shadow:var(--sh-card);
}
.spec-row{display:grid;grid-template-columns:1.05fr 1.85fr 1.05fr}
.spec-row>div{
  padding:20px 22px;border-bottom:1px solid var(--line);
  font-size:15px;display:flex;flex-direction:column;justify-content:center;gap:5px;
  color:#c8d0dc;min-width:0;
}
.spec-head{background:linear-gradient(90deg,rgba(255,45,122,.16),rgba(20,227,210,.09))}
.spec-head>div{
  padding:15px 22px;border-bottom:1px solid var(--line);
  font-size:13px;font-weight:600;letter-spacing:.08em;color:#cfd7e2;
}
.spec-body .spec-row:nth-child(odd){background:rgba(255,255,255,.026)}
.spec-body .spec-row:last-child>div{border-bottom:0}
.spec-body .spec-row{transition:background .22s ease}
.spec-body .spec-row:hover{background:rgba(255,45,122,.07)}
.spec-name{display:flex;align-items:center;gap:10px;color:#fff;font-weight:600;font-size:15.5px}
.dot{width:8px;height:8px;border-radius:50%;flex:none;background:var(--brand);box-shadow:0 0 10px var(--brand)}
.spec-body .spec-row:nth-child(even) .dot{background:var(--brand-2);box-shadow:0 0 10px var(--brand-2)}
.time-tag{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--amber);font-variant-numeric:tabular-nums;font-weight:600}
.table-note{margin-top:16px;font-size:13.5px;color:var(--muted)}

/* ---------- 图文区 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:center}
.split-media{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-card);
}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-img)}
.split-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(10,11,16,.04),rgba(10,11,16,.55));
}
.split-body h2{margin-bottom:18px}
.split-body p{color:#c3cad6;margin-bottom:16px}
.tick-list{margin:24px 0 28px;display:grid;gap:12px}
.tick-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:#d5dbe4}
.tick-list li::before{
  content:"";flex:none;width:16px;height:16px;margin-top:6px;border-radius:5px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 12px rgba(255,45,122,.45);
}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{
  position:relative;background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 22px 26px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(255,45,122,.45);box-shadow:var(--sh-hover)}
.step-num{
  font-size:34px;font-weight:800;line-height:1;letter-spacing:.02em;
  color:transparent;-webkit-text-stroke:1px rgba(255,45,122,.9);
  font-variant-numeric:tabular-nums;
}
.step h3{margin:16px 0 10px}
.step p{font-size:15px;color:var(--muted);line-height:1.8}
.step::after{
  content:"";position:absolute;left:22px;right:22px;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));opacity:.5;
}

/* ---------- FAQ ---------- */
.faq-panel{
  background:var(--bg-soft);color:#1b2027;
  border-radius:var(--r-panel);padding:clamp(22px,3.4vw,40px);
  box-shadow:0 24px 60px -30px rgba(0,0,0,.9);
}
.faq-panel-head{margin-bottom:12px}
.faq-panel-head h2{color:#12161d}
.faq-panel-head p{margin-top:12px;color:#59616e;font-size:15.5px}
.faq-item{border-bottom:1px solid rgba(10,11,16,.1)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 0 14px 16px;border-left:3px solid var(--brand);
  cursor:pointer;font-size:16.5px;font-weight:600;color:#12161d;
  transition:color .2s ease,background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#b3005a;background:rgba(255,45,122,.05)}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(10,11,16,.22);position:relative;
  transition:transform .3s ease,border-color .3s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:#12161d;
  transform:translate(-50%,-50%);transition:opacity .2s ease;
}
.faq-icon::before{width:11px;height:1.6px}
.faq-icon::after{width:1.6px;height:11px}
.faq-item[open] .faq-icon{transform:rotate(180deg);border-color:var(--brand)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-answer{padding:0 8px 20px 16px;font-size:15px;line-height:1.8;color:#3a424e}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;text-align:center;
  border-radius:var(--r-panel);
  padding:clamp(32px,5vw,64px) clamp(22px,4vw,56px);
  background:
    linear-gradient(120deg,rgba(255,45,122,.18),rgba(20,227,210,.1)),
    var(--bg-block);
  box-shadow:var(--sh-card);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:linear-gradient(120deg,var(--brand),rgba(255,255,255,.06) 45%,var(--brand-2));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  pointer-events:none;
}
.cta-panel h2{max-width:760px;margin:0 auto}
.cta-panel p{margin:18px auto 0;max-width:660px;color:var(--muted)}
.cta-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;justify-content:center;align-items:center}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;background:var(--bg-block);border-top:1px solid var(--line);padding:clamp(40px,6vw,72px) 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px}
.footer-brand .brand{margin-bottom:16px}
.footer-note{color:var(--muted);font-size:14.5px;line-height:1.85;max-width:340px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600}
.footer-col a{display:block;color:var(--muted);font-size:14.5px;padding:6px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--brand-2);text-decoration:none;transform:translateX(3px)}
.footer-col p{color:var(--muted);font-size:14.5px;padding:4px 0}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--brand-2)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-link{padding:9px 10px;font-size:14.2px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-inner{justify-content:space-between}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr}
  .split-media{order:-1}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:860px){
  .spec-row{grid-template-columns:1fr}
  .spec-head{display:none}
  .spec-row>div{padding:16px 18px}
  .spec-row>div::before{
    content:attr(data-label);display:block;
    font-size:12.5px;letter-spacing:.06em;color:var(--muted);margin-bottom:6px;
  }
  .page-hero{background:
    linear-gradient(160deg,rgba(10,11,16,.96) 0%,rgba(10,11,16,.82) 60%,rgba(10,11,16,.62) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;}
}
@media (max-width:640px){
  body{font-size:16px;line-height:1.8}
  .hero-stats{grid-template-columns:1fr;max-width:100%}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions .btn{width:100%}
  .section{padding:56px 0}
  .brand-text{font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --bg:#0A0B10;
  --panel:#101219;
  --card:#171A24;
  --line:rgba(255,255,255,.08);
  --ink:#ECEFF4;
  --ink-2:#9AA3B2;
  --ink-3:#6E7787;
  --neon:#FF2D7A;
  --cyan:#14E3D2;
  --amber:#FFB020;
  --light:#F5F7FA;
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:12px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.75);
  --shadow-hover:0 10px 30px -12px rgba(255,45,122,.35);
  --maxw:1240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,4vw,40px)}
.section{padding:clamp(56px,8vw,110px) 0;position:relative}
.section-alt{background:var(--panel)}
.section-title{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;letter-spacing:.01em}
.section-head{max-width:820px;margin-bottom:clamp(28px,4vw,48px)}
.section-head .section-title{margin-bottom:16px}
.section-head p{color:var(--ink-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--cyan);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--neon),var(--cyan));border-radius:2px}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,11,16,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,#FF2D7A 35%,#14E3D2 70%,transparent);
  opacity:.85;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;flex:0 0 auto}
.logo:hover{text-decoration:none;color:var(--ink)}
.logo-mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,#FF2D7A,#14E3D2);
  position:relative;flex:0 0 auto;
  box-shadow:0 0 18px -4px rgba(255,45,122,.8);
}
.logo-mark::after{
  content:"";position:absolute;inset:9px;border-radius:3px;
  background:#0A0B10;
}
.logo-text{font-size:18px;letter-spacing:.02em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:10px;
  color:var(--ink-2);font-size:15px;
  transition:color .2s ease,background .2s ease,transform .2s ease;
}
.nav-link:hover{color:var(--ink);background:rgba(255,255,255,.05);transform:translateY(-1px);text-decoration:none}
.nav-link.is-active{color:var(--ink);text-shadow:0 0 14px rgba(255,45,122,.55)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:linear-gradient(90deg,#FF2D7A,#14E3D2);
}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 18px;border-radius:999px;
  font-size:14px;font-weight:600;color:#0A0B10;
  background:linear-gradient(45deg,#FF2D7A,#14E3D2);
  transition:filter .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.header-cta:hover{filter:brightness(1.08);box-shadow:0 0 22px -6px rgba(255,45,122,.85);text-decoration:none;color:#0A0B10}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease}

/* ============ 面包屑 ============ */
.breadcrumb{font-size:13px;color:var(--ink-2);margin-bottom:22px;display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{color:var(--ink-3)}
.breadcrumb .current{color:var(--ink-3)}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:clamp(48px,6vw,88px) 0 clamp(56px,7vw,96px);
  background-image:
    linear-gradient(100deg,rgba(10,11,16,.95) 0%,rgba(10,11,16,.72) 48%,rgba(10,11,16,.34) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
}
.page-hero .container{position:relative;z-index:2}
.hero-title{
  font-size:clamp(30px,4.2vw,52px);line-height:1.18;font-weight:700;
  letter-spacing:.01em;margin-bottom:18px;
}
.hero-sub{color:#C7CEDB;font-size:17px;max-width:640px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:filter .2s ease,background .2s ease,box-shadow .2s ease,transform .15s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none}
.btn-primary{background:linear-gradient(45deg,#FF2D7A,#14E3D2);color:#0A0B10}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 26px -6px rgba(255,45,122,.75)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(20,227,210,.42);color:var(--cyan)}
.btn-ghost:hover{background:rgba(20,227,210,.12);border-color:rgba(20,227,210,.7)}
.btn-ghost:active{transform:translateY(1px)}
.btn-pill{border-radius:999px}
.stat-row{display:flex;flex-wrap:wrap;gap:clamp(20px,4vw,52px)}
.stat-row li{display:flex;flex-direction:column}
.stat-row b{
  font-size:30px;line-height:1.2;font-weight:700;
  font-variant-numeric:tabular-nums;
  background:linear-gradient(90deg,#FF2D7A,#14E3D2);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-row span{font-size:13.5px;color:var(--ink-2)}
.hero-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.hero-card figure{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#232838,#12141d)}
.hero-card figure img{width:100%;height:100%;object-fit:cover}
.hero-card-body{padding:22px 24px 26px}
.hero-card-body h2{font-size:18px;font-weight:700;margin-bottom:14px}
.hero-list li{display:flex;gap:10px;padding:9px 0;border-top:1px solid var(--line);font-size:14.5px;color:var(--ink-2)}
.hero-list li:first-child{border-top:0}
.hero-list li b{color:var(--ink);font-weight:600;flex:0 0 auto}

/* ============ 卡片 ============ */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  height:100%;
  margin-bottom:0;
  padding:0;
  color:var(--ink);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,45,122,.45);box-shadow:var(--shadow-hover)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#22273a,#12141d)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,11,16,0) 45%,rgba(10,11,16,.6))}
.badge{
  position:absolute;top:12px;left:12px;z-index:2;
  display:inline-block;padding:3px 10px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;
  color:var(--cyan);background:rgba(10,11,16,.72);
  border:1px solid rgba(20,227,210,.4);
}
.card-body{padding:20px 22px 24px}
.card-body h3{font-size:19px;line-height:1.5;font-weight:700;margin-bottom:10px}
.card:hover .card-body h3{color:var(--cyan)}
.card-body p{color:var(--ink-2);font-size:15px;line-height:1.8}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.meta-time{color:var(--amber);font-size:12.5px;font-variant-numeric:tabular-nums}
.card-link{font-size:14px;color:var(--cyan);font-weight:600}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:36px;max-width:900px}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,#FF2D7A,#14E3D2);opacity:.55;
}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-33px;top:9px;width:12px;height:12px;border-radius:50%;
  background:#0A0B10;border:2px solid var(--neon);
  box-shadow:0 0 12px rgba(255,45,122,.65);
}
.tl-step{
  display:inline-block;font-size:12px;letter-spacing:.1em;
  color:var(--amber);font-variant-numeric:tabular-nums;margin-bottom:6px;
}
.tl-item h3{font-size:20px;font-weight:700;line-height:1.5;margin-bottom:8px}
.tl-item p{color:var(--ink-2);font-size:15.5px;max-width:760px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{
  display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;
  color:var(--ink-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
}

/* ============ 场景（序号错位） ============ */
.scene-list{max-width:960px}
.scene{display:flex;gap:clamp(18px,3vw,36px);padding:26px 0;border-top:1px solid var(--line)}
.scene:first-child{border-top:0;padding-top:0}
.scene-num{
  flex:0 0 auto;font-size:44px;line-height:1;font-weight:700;
  font-variant-numeric:tabular-nums;
  color:transparent;-webkit-text-stroke:1px rgba(255,45,122,.75);
}
.scene-body h3{font-size:20px;font-weight:700;margin-bottom:8px}
.scene-body p{color:var(--ink-2);font-size:15.5px}

/* ============ 数据条 ============ */
.metric{padding:22px 0 6px}
.metric-top{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:12px}
.metric-top h3{font-size:17px;font-weight:600}
.metric-num{font-size:28px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--cyan)}
.metric-num span{font-size:16px;margin-left:2px}
.bar{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#FF2D7A,#14E3D2)}
.metric p{color:var(--ink-2);font-size:14.5px;margin-top:12px}

/* ============ FAQ ============ */
.faq{max-width:900px}
.faq details{
  background:var(--light);
  border-radius:var(--radius-card);
  margin-bottom:12px;
  overflow:hidden;
  color:#141821;
  box-shadow:0 12px 30px -22px rgba(0,0,0,.9);
}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;
  font-size:16.5px;font-weight:600;
  border-left:3px solid var(--neon);
}
.faq summary::-webkit-details-marker{display:none}
.faq .chev{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(20,227,210,.6);position:relative;
  transition:transform .25s ease;
}
.faq .chev::before{
  content:"";position:absolute;left:6px;top:7px;width:7px;height:7px;
  border-right:2px solid #0f8f86;border-bottom:2px solid #0f8f86;
  transform:rotate(45deg);
}
.faq details[open] .chev{transform:rotate(180deg)}
.faq .answer{padding:6px 22px 20px 25px;font-size:15px;line-height:1.8;color:#3A4252;border-left:3px solid rgba(255,45,122,.25)}

/* ============ CTA 面板 ============ */
.cta-panel{
  border:1px solid transparent;
  border-radius:var(--radius-panel);
  background:
    linear-gradient(#101219,#101219) padding-box,
    linear-gradient(120deg,#FF2D7A,#14E3D2) border-box;
  padding:clamp(28px,4.5vw,56px);
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;inset:auto -20% -60% -20%;height:220px;
  background:radial-gradient(ellipse at center,rgba(255,45,122,.22),transparent 65%);
  pointer-events:none;
}
.cta-panel h2{font-size:clamp(23px,2.6vw,32px);font-weight:700;line-height:1.3;margin-bottom:14px}
.cta-panel p{color:var(--ink-2);max-width:680px;margin:0 auto 26px;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;position:relative;z-index:2}
.text-link{display:inline-block;font-size:14.5px;color:var(--cyan);font-weight:600}

/* ============ 页脚 ============ */
.site-footer{background:#07080C;border-top:1px solid var(--line);padding:clamp(44px,6vw,72px) 0 26px;margin-top:0}
.footer-brand{font-size:19px;font-weight:700;margin-bottom:14px}
.footer-desc{color:var(--ink-2);font-size:14.5px;max-width:360px}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row a{
  width:38px;height:38px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--ink-2);transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.social-row a:hover{color:var(--cyan);border-color:rgba(20,227,210,.55);background:rgba(20,227,210,.08);text-decoration:none}
.social-row svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.footer-title{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px;letter-spacing:.04em}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--ink-2);font-size:14.5px}
.footer-links a:hover{color:var(--cyan)}
.footer-info{color:var(--ink-2);font-size:14.5px}
.footer-info li{margin-bottom:10px;display:flex;gap:8px}
.footer-info b{color:var(--ink);font-weight:600}
.footer-bottom{
  margin-top:clamp(28px,4vw,44px);padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  color:var(--ink-3);font-size:13.5px;
}
.footer-bottom a{color:var(--ink-3)}
.footer-bottom a:hover{color:var(--cyan)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .nav-links{
    position:fixed;top:69px;left:0;right:0;bottom:0;
    background:rgba(10,11,16,.98);
    flex-direction:column;align-items:stretch;gap:0;
    padding:16px;display:none;overflow-y:auto;
  }
  .nav-links.is-open{display:flex}
  .nav-link{
    min-height:56px;display:flex;align-items:center;
    padding:0 18px;border-radius:0;border-left:3px solid transparent;
    font-size:16px;
  }
  .nav-link:hover{transform:none}
  .nav-link.is-active{background:rgba(255,45,122,.09);border-left-color:var(--neon)}
  .nav-link.is-active::after{display:none}
  .hero-card{margin-top:32px}
  .timeline{padding-left:28px}
  .tl-item::before{left:-26px}
  .section{padding:72px 0}
}
@media (max-width:639px){
  body{font-size:16px;line-height:1.8}
  .section{padding:56px 0}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .stat-row{gap:18px}
  .stat-row b{font-size:24px}
  .scene{gap:14px}
  .scene-num{font-size:34px}
  .timeline{padding-left:24px}
  .tl-item::before{left:-22px;width:10px;height:10px;top:8px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}