/* roulang page: index */
:root{
  --bg:#0A0B0D;
  --bg-2:#101215;
  --card:#14171A;
  --card-hi:#181C20;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.16);
  --primary:#12D9A0;
  --accent:#F5C24B;
  --text:#F3F5F4;
  --muted:#A2AAA8;
  --dim:#6D7674;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 0 0 1px rgba(255,255,255,.06),0 18px 40px rgba(0,0,0,.55);
  --shadow-hi:0 0 0 1px rgba(18,217,160,.32),0 22px 48px rgba(0,0,0,.6);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:260ms cubic-bezier(.22,.61,.36,1);
  --font-cn:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --shell:1200px;
  --sec-y:clamp(56px,7vw,104px);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-cn);font-size:16px;line-height:1.9;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.15;letter-spacing:-.01em;}
p{margin:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-y) 0;position:relative;}
.section.alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:44px;}
.sec-kicker{display:inline-block;font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--primary);text-transform:uppercase;margin-bottom:12px;}
.sec-title{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;line-height:1.14;}
.sec-note{max-width:420px;color:var(--muted);font-size:15px;line-height:1.85;}
.link-more{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:14px;font-weight:600;border-bottom:1px solid rgba(18,217,160,.35);padding-bottom:2px;transition:var(--t);}
.link-more:hover{border-bottom-color:var(--primary);transform:translateX(3px);}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(10,11,13,.88);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);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,rgba(18,217,160,.55),transparent);pointer-events:none;}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;flex:0 0 auto;}
.brand-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(140deg,rgba(18,217,160,.24),rgba(18,217,160,.02));border:1px solid rgba(18,217,160,.45);color:var(--primary);font-size:14px;box-shadow:0 0 18px rgba(18,217,160,.22);}
.brand-text{font-size:16px;letter-spacing:.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-item{position:relative;padding:10px 14px;font-size:15px;color:var(--muted);border-radius:8px;transition:color var(--t),background var(--t);}
.nav-item:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-item.active{color:var(--primary);}
.nav-item.active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(18,217,160,.9);}
.nav-cta{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--r-btn);background:var(--primary);color:#06231A;font-weight:700;font-size:14px;transition:transform var(--t),box-shadow var(--t),filter var(--t);box-shadow:0 0 0 1px rgba(18,217,160,.4),0 10px 26px rgba(18,217,160,.18);}
.nav-cta:hover{filter:brightness(1.08);transform:translateY(-2px);color:#06231A;}
.nav-cta:active{transform:translateY(1px);}
.nav-toggle{display:none;margin-left:auto;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-2);background:transparent;color:var(--text);font-size:16px;}
.offcanvas.offcanvas-end{background:#07080A;color:var(--text);border-left:1px solid var(--line);width:min(86vw,320px);}
.offcanvas-header{border-bottom:1px solid var(--line);}
.offcanvas-title{font-size:15px;font-weight:700;}
.btn-close{filter:invert(1) grayscale(1) brightness(1.6);}
.m-nav{display:flex;flex-direction:column;gap:6px;padding:20px 0;}
.m-nav a{padding:14px 16px;border-radius:10px;border:1px solid transparent;color:var(--muted);font-size:16px;transition:var(--t);animation:mIn .4s var(--ease) both;}
.m-nav a.active{color:var(--primary);border-color:rgba(18,217,160,.35);background:rgba(18,217,160,.06);}
.m-nav a:nth-child(1){animation-delay:.05s}
.m-nav a:nth-child(2){animation-delay:.11s}
.m-nav a:nth-child(3){animation-delay:.17s}
@keyframes mIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.m-cta{margin-top:14px;display:block;text-align:center;padding:14px;border-radius:var(--r-btn);background:var(--primary);color:#06231A;font-weight:700;}

/* ---------- buttons ---------- */
.btn-neon{position:relative;overflow:hidden;display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:var(--r-btn);background:var(--primary);color:#06231A;font-weight:700;font-size:15px;border:0;cursor:pointer;transition:transform var(--t),box-shadow var(--t),filter var(--t);box-shadow:0 0 0 1px rgba(18,217,160,.4),0 14px 30px rgba(18,217,160,.18);}
.btn-neon:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(18,217,160,.7),0 18px 38px rgba(18,217,160,.3);color:#06231A;}
.btn-neon:active{transform:translateY(1px);}
.btn-neon::after{content:"";position:absolute;top:0;left:-130%;width:55%;height:100%;background:linear-gradient(105deg,transparent,rgba(255,255,255,.55),transparent);transform:skewX(-18deg);transition:left 420ms var(--ease);}
.btn-neon:hover::after{left:140%;}
.btn-line{display:inline-flex;align-items:center;gap:9px;padding:12px 24px;border-radius:var(--r-btn);background:transparent;border:1px solid rgba(18,217,160,.55);color:var(--primary);font-weight:600;font-size:15px;cursor:pointer;transition:transform var(--t),background var(--t),box-shadow var(--t),border-color var(--t);}
.btn-line:hover{background:rgba(18,217,160,.08);border-color:var(--primary);transform:translateY(-2px);box-shadow:0 0 22px rgba(18,217,160,.18);color:var(--primary);}
.btn-line:active{transform:translateY(1px);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:14px;font-weight:600;padding:6px 0;border-bottom:1px solid transparent;transition:var(--t);}
.btn-text:hover{color:var(--primary);border-bottom-color:rgba(18,217,160,.5);}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--bg);border-bottom:1px solid var(--line);}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center right;opacity:.32;}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,11,13,.96) 24%,rgba(10,11,13,.72) 58%,rgba(10,11,13,.9) 100%);}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:74px 74px;-webkit-mask-image:radial-gradient(ellipse at 62% 42%,#000 12%,transparent 74%);mask-image:radial-gradient(ellipse at 62% 42%,#000 12%,transparent 74%);pointer-events:none;}
.hero-scan{position:absolute;top:-25%;left:-40%;width:38%;height:150%;background:linear-gradient(100deg,transparent,rgba(18,217,160,.12),transparent);transform:skewX(-14deg);animation:scanMove 11s linear infinite;pointer-events:none;}
@keyframes scanMove{0%{left:-40%}100%{left:135%}}
.hero-inner{position:relative;padding:clamp(72px,11vw,132px) 0 clamp(56px,7vw,86px);max-width:860px;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:var(--r-pill);border:1px solid rgba(18,217,160,.35);background:rgba(18,217,160,.07);color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.04em;margin-bottom:26px;}
.hero h1{font-size:clamp(2.4rem,6vw,4.6rem);font-weight:900;line-height:1.06;letter-spacing:-.02em;margin-bottom:22px;}
.hero h1 em{font-style:normal;color:var(--primary);text-shadow:0 0 32px rgba(18,217,160,.35);}
.hero-sub{font-size:clamp(15px,1.6vw,18px);color:var(--muted);max-width:560px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:60px;padding-top:34px;border-top:1px solid var(--line);}
.stat-num{font-family:var(--font-mono);font-size:clamp(1.5rem,2.6vw,2rem);font-weight:500;letter-spacing:.06em;color:var(--primary);line-height:1.2;}
.stat-label{font-size:13px;color:var(--dim);margin-top:6px;}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:10px;}
.timeline::before{content:"";position:absolute;left:50%;top:8px;bottom:8px;width:1px;background:linear-gradient(180deg,transparent,var(--line-2) 12%,var(--line-2) 88%,transparent);transform:translateX(-.5px);}
.tl-item{display:grid;grid-template-columns:1fr 132px 1fr;align-items:center;gap:0;padding:12px 0;position:relative;}
.tl-time{grid-column:2;text-align:center;font-family:var(--font-mono);font-size:14px;font-weight:500;letter-spacing:.06em;color:var(--dim);transition:color var(--t);}
.tl-time::before{content:"";display:block;width:9px;height:9px;margin:0 auto 12px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 5px rgba(18,217,160,.1);transition:transform var(--t),box-shadow var(--t);}
.tl-item:hover .tl-time{color:var(--primary);}
.tl-item:hover .tl-time::before{transform:scale(1.4);box-shadow:0 0 0 7px rgba(18,217,160,.16);}
.tl-card{grid-column:3;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:22px 26px;box-shadow:var(--shadow);transition:var(--t);}
.tl-item:nth-child(even) .tl-card{grid-column:1;text-align:right;}
.tl-item:hover .tl-card{box-shadow:var(--shadow-hi);transform:translateY(-3px);}
.tl-card h3{font-size:1.05rem;font-weight:700;margin-bottom:8px;}
.tl-card p{color:var(--muted);font-size:14.5px;line-height:1.8;}
.chip{display:inline-flex;align-items:center;margin-top:12px;padding:3px 12px;border-radius:var(--r-pill);border:1px solid var(--line-2);color:var(--dim);font-size:12px;letter-spacing:.04em;}

/* ---------- speakers ---------- */
.speaker-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.speaker-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);transition:var(--t);}
.speaker-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hi);}
.ratio-34{aspect-ratio:3/4;overflow:hidden;background:#0d0f11;}
.ratio-34 img{width:100%;height:100%;object-fit:cover;transition:transform 520ms var(--ease);}
.speaker-card:hover .ratio-34 img{transform:scale(1.05);}
.speaker-body{padding:20px 22px 24px;}
.speaker-name{font-size:1.05rem;font-weight:800;}
.speaker-role{font-size:13px;color:var(--primary);font-family:var(--font-mono);letter-spacing:.05em;margin:6px 0 10px;}
.speaker-line{font-size:14px;color:var(--muted);line-height:1.8;}

/* ---------- tickets ---------- */
.ticket-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start;}
.ticket{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:30px 28px 32px;box-shadow:var(--shadow);transition:var(--t);}
.ticket:hover{box-shadow:var(--shadow-hi);}
.ticket.featured{transform:translateY(-12px);border-color:rgba(18,217,160,.6);background:linear-gradient(180deg,rgba(18,217,160,.06),rgba(18,217,160,0) 46%),var(--card);}
.ticket.featured:hover{transform:translateY(-16px);}
.ticket-flag{position:absolute;top:-13px;left:28px;padding:3px 14px;border-radius:var(--r-pill);background:var(--accent);color:#3A2A00;font-size:12px;font-weight:700;letter-spacing:.06em;}
.ticket-name{font-size:1.15rem;font-weight:800;}
.ticket-tag{display:block;font-size:13px;color:var(--dim);margin:8px 0 20px;font-family:var(--font-mono);letter-spacing:.05em;}
.ticket-price{font-family:var(--font-mono);font-size:1.5rem;color:var(--accent);letter-spacing:.05em;margin-bottom:22px;}
.ticket ul{display:flex;flex-direction:column;gap:12px;margin-bottom:28px;}
.ticket li{display:flex;gap:10px;font-size:14.5px;color:var(--muted);line-height:1.7;}
.ticket li i{color:var(--primary);font-size:12px;margin-top:7px;}
.ticket .btn-line,.ticket .btn-neon{width:100%;justify-content:center;}

/* ---------- signup ---------- */
.signup{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.signup-copy h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800;line-height:1.16;margin-bottom:20px;}
.signup-copy p{color:var(--muted);font-size:15.5px;line-height:1.9;margin-bottom:16px;}
.trust-list{margin-top:28px;display:flex;flex-direction:column;gap:14px;}
.trust-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--muted);}
.trust-list i{color:var(--primary);margin-top:7px;font-size:12px;}
.form-card{background:linear-gradient(180deg,rgba(18,217,160,.05),rgba(18,217,160,0) 42%),var(--card);border:1px solid rgba(18,217,160,.28);border-radius:var(--r-card);padding:32px 30px 34px;box-shadow:0 0 0 1px rgba(18,217,160,.12),0 24px 52px rgba(0,0,0,.6);}
.form-title{font-size:1.1rem;font-weight:800;margin-bottom:6px;}
.form-hint{font-size:13px;color:var(--dim);margin-bottom:24px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:8px;letter-spacing:.02em;}
.field .req{color:var(--accent);}
.form-control,.form-select{width:100%;background:#14171A;border:1px solid var(--line-2);border-radius:var(--r-input);padding:12px 14px;font-size:15px;color:var(--text);transition:border-color var(--t),box-shadow var(--t);}
.form-control::placeholder{color:var(--dim);}
.form-control:focus,.form-select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(18,217,160,.12);background:#14171A;color:var(--text);}
.form-select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:44px;}
textarea.form-control{min-height:104px;resize:vertical;line-height:1.8;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--dim);line-height:1.7;margin:6px 0 22px;}
.consent input{appearance:none;-webkit-appearance:none;flex:0 0 auto;width:18px;height:18px;margin-top:3px;border:1px solid var(--line-2);border-radius:5px;background:#14171A;cursor:pointer;position:relative;transition:var(--t);}
.consent input:checked{background:var(--primary);border-color:var(--primary);}
.consent input:checked::after{content:"";position:absolute;left:5px;top:1px;width:6px;height:11px;border-right:2px solid #06231A;border-bottom:2px solid #06231A;transform:rotate(40deg);}
.form-ok{display:none;margin-top:18px;padding:14px 16px;border-radius:var(--r-input);border:1px solid rgba(18,217,160,.4);background:rgba(18,217,160,.08);color:var(--primary);font-size:14px;}
.form-ok.show{display:block;}

/* ---------- news ---------- */
.news-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:38px;}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.news-item{height:100%;}
.news-link{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--shadow);transition:var(--t);position:relative;overflow:hidden;}
.news-link::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--primary);transform:scaleY(0);transform-origin:top;transition:transform var(--t);}
.news-link:hover{transform:translateY(-4px);box-shadow:var(--shadow-hi);}
.news-link:hover::before{transform:scaleY(1);}
.news-link:hover .news-title{color:var(--primary);}
.news-title{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:10px;transition:color var(--t);}
.news-desc{font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:12.5px;color:var(--dim);font-family:var(--font-mono);letter-spacing:.04em;}
.badge-tag{display:inline-flex;align-items:center;padding:2px 11px;border-radius:var(--r-pill);background:rgba(18,217,160,.1);border:1px solid rgba(18,217,160,.3);color:var(--primary);font-size:12px;font-family:var(--font-cn);letter-spacing:.02em;}
.news-empty{grid-column:1/-1;text-align:center;padding:56px 24px;border:1px dashed var(--line-2);border-radius:var(--r-card);color:var(--dim);}
.news-empty i{font-size:26px;color:var(--primary);opacity:.6;display:block;margin-bottom:14px;}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card)!important;margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow);transition:var(--t);}
.accordion-item:hover{border-color:var(--line-2);}
.accordion-button{background:transparent;color:var(--text);font-size:16px;font-weight:600;padding:20px 24px;box-shadow:none!important;border:0;}
.accordion-button:not(.collapsed){color:var(--primary);background:rgba(18,217,160,.05);box-shadow:inset 3px 0 0 var(--primary)!important;}
.accordion-button::after{background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;width:auto;height:auto;display:grid;place-items:center;color:var(--primary);transition:transform var(--t);}
.accordion-button:not(.collapsed)::after{content:"\f068";transform:none;}
.accordion-body{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.85;border-top:1px solid var(--line);padding-top:18px;}

/* ---------- cta strip ---------- */
.cta-strip{position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-2);}
.cta-strip .shell{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;padding-top:52px;padding-bottom:52px;}
.cta-strip h2{font-size:clamp(1.35rem,2.4vw,1.9rem);font-weight:800;line-height:1.3;}
.cta-strip p{color:var(--muted);font-size:14.5px;margin-top:10px;}

/* ---------- footer ---------- */
.site-footer{background:#07080A;border-top:1px solid var(--line);padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px;}
.foot-brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:16px;margin-bottom:18px;}
.foot-intro{color:var(--dim);font-size:14px;line-height:1.9;max-width:320px;}
.foot-title{font-size:13px;letter-spacing:.08em;color:var(--muted);margin-bottom:20px;font-weight:700;}
.foot-links{display:flex;flex-direction:column;gap:12px;}
.foot-links a{font-size:14px;color:var(--dim);transition:var(--t);}
.foot-links a:hover{color:var(--primary);transform:translateX(3px);}
.foot-info{font-size:14px;color:var(--dim);line-height:2;font-family:var(--font-mono);letter-spacing:.02em;}
.foot-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;font-size:13px;color:var(--dim);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (min-width:1400px){
  :root{--shell:1240px;}
}
@media (max-width:1199px){
  .shell{padding:0 22px;}
  .signup{gap:40px;}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .speaker-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .ticket-grid{grid-template-columns:1fr;gap:20px;}
  .ticket.featured{transform:none;}
  .ticket.featured:hover{transform:translateY(-4px);}
  .signup{grid-template-columns:1fr;gap:36px;}
  .news-grid{grid-template-columns:1fr;}
  .timeline::before{left:9px;}
  .tl-item{grid-template-columns:1fr;padding-left:38px;padding-right:0;}
  .tl-time{grid-column:1;text-align:left;margin-bottom:12px;display:flex;align-items:center;gap:12px;}
  .tl-time::before{margin:0;}
  .tl-card,.tl-item:nth-child(even) .tl-card{grid-column:1;text-align:left;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .shell{padding:0 18px;}
  .section{padding:56px 0;}
  .hero-inner{padding:64px 0 48px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:44px;}
  .sec-head{margin-bottom:30px;}
  .hero-actions{gap:12px;}
  .btn-neon,.btn-line{padding:12px 20px;font-size:14.5px;}
  .foot-grid{grid-template-columns:1fr;gap:30px;padding-bottom:38px;}
  .cta-strip .shell{padding-top:42px;padding-bottom:42px;}
  .form-card{padding:26px 20px 28px;}
  .speaker-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:14px;padding-bottom:10px;-webkit-overflow-scrolling:touch;}
  .speaker-grid::-webkit-scrollbar{height:5px;}
  .speaker-grid::-webkit-scrollbar-thumb{background:rgba(18,217,160,.3);border-radius:9px;}
  .speaker-card{flex:0 0 74%;scroll-snap-align:start;}
}
@media (max-width:520px){
  .hero h1{font-size:clamp(1.85rem,8.6vw,2.5rem);}
  .speaker-card{flex:0 0 84%;}
  .news-link,.tl-card{padding:20px 18px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:400px){
  .shell{padding:0 14px;}
  .hero-stats{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;}
  .reveal{opacity:1;transform:none;}
  .hero-scan{opacity:.3;}
}

/* roulang page: article */
:root{
  --bg:#0A0B0D;
  --bg-2:#101215;
  --bg-3:#07080A;
  --card:#14171A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --primary:#12D9A0;
  --primary-dim:rgba(18,217,160,.16);
  --primary-soft:rgba(18,217,160,.30);
  --amber:#F5C24B;
  --text:#F3F5F4;
  --muted:#A2AAA8;
  --weak:#6D7674;
  --r-lg:14px;
  --r-md:12px;
  --r-sm:10px;
  --shadow-card:0 0 0 1px rgba(255,255,255,.06), 0 18px 40px rgba(0,0,0,.55);
  --shadow-hover:0 0 0 1px rgba(18,217,160,.30), 0 22px 48px rgba(0,0,0,.62);
  --ease:cubic-bezier(.22,.61,.36,1);
  --shell:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease),border-color .24s var(--ease),background-color .24s var(--ease)}
a:hover{color:var(--primary)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:var(--primary);color:#0A0B0D}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px}
.row{--bs-gutter-x:24px;--bs-gutter-y:24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,11,13,.90);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(18,217,160,0),rgba(18,217,160,.55),rgba(18,217,160,0));
  opacity:.75;
}
.header-inner{height:68px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),#0EAE83);
  color:#08120F;font-size:15px;
  box-shadow:0 0 0 1px rgba(18,217,160,.45),0 0 18px rgba(18,217,160,.32);
}
.brand-text{font-size:17px;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-item{
  position:relative;padding:8px 14px;border-radius:8px;
  font-size:15px;color:var(--muted);
  transition:color .24s var(--ease),background-color .24s var(--ease);
}
.nav-item:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-item.active{color:var(--primary)}
.nav-item.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(18,217,160,.85);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn-neon{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-sm);border:0;
  background:var(--primary);color:#07120E;font-weight:700;font-size:15px;
  position:relative;overflow:hidden;
  transition:transform .24s var(--ease),filter .24s var(--ease),box-shadow .24s var(--ease);
  box-shadow:0 0 0 1px rgba(18,217,160,.35),0 10px 26px rgba(18,217,160,.18);
}
.btn-neon:hover{color:#07120E;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(18,217,160,.6),0 16px 34px rgba(18,217,160,.26)}
.btn-neon:active{transform:translateY(1px)}
.btn-neon::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(115deg,transparent,rgba(255,255,255,.55),transparent);
  transition:left .38s var(--ease);
}
.btn-neon:hover::after{left:140%}
.btn-neon-sm{padding:9px 18px;font-size:14px}
.btn-outline-neon{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-sm);
  border:1px solid var(--primary);background:transparent;color:var(--primary);
  font-weight:600;font-size:15px;
  transition:transform .24s var(--ease),background-color .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-outline-neon:hover{background:var(--primary-dim);color:var(--primary);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(18,217,160,.4)}
.btn-outline-neon:active{transform:translateY(1px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;padding:4px 0;
  color:var(--muted);font-size:15px;font-weight:600;
  border-bottom:1px solid transparent;
}
.btn-ghost:hover{color:var(--primary);border-bottom-color:var(--primary)}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:10px;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);cursor:pointer;
}
.menu-toggle:hover{border-color:var(--primary-soft);color:var(--primary)}
.mobile-panel{
  position:fixed;inset:0;z-index:90;background:var(--bg-3);
  padding:86px 24px 32px;display:none;flex-direction:column;gap:4px;
}
.mobile-panel.is-open{display:flex}
.mobile-panel .nav-item{
  border-radius:0;border-bottom:1px solid var(--line);
  padding:16px 4px;font-size:17px;color:var(--text);
}
.mobile-panel .nav-item.active{color:var(--primary);background:transparent}
.mobile-panel .nav-item.active::after{left:0;right:auto;width:22px;bottom:-1px}
.mobile-cta{margin-top:22px}
.mobile-close{
  position:absolute;top:20px;right:20px;width:42px;height:42px;border-radius:10px;
  background:transparent;border:1px solid var(--line);color:var(--text);
  display:grid;place-items:center;cursor:pointer;
}
.mobile-close:hover{border-color:var(--primary);color:var(--primary)}

/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:56px 0 52px;background:var(--bg-2)}
.article-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.30}
.article-hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,11,13,.86),rgba(10,11,13,.94))}
.article-hero-grid{
  position:absolute;inset:0;opacity:.35;
  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;
}
.article-hero-inner{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:22px}
.crumb a{padding:4px 12px;border-radius:999px;background:rgba(255,255,255,.05);color:var(--muted)}
.crumb a:hover{color:var(--primary);box-shadow:inset 0 0 0 1px var(--primary-soft)}
.crumb span{color:var(--weak)}
.crumb-current{padding:4px 12px;border-radius:999px;background:var(--primary-dim);color:var(--primary)}
.article-title{
  font-size:clamp(1.8rem,3.4vw,2.9rem);line-height:1.24;font-weight:900;letter-spacing:-.02em;
  max-width:940px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:24px;font-size:13px;color:var(--muted)}
.meta-item{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.05);box-shadow:inset 0 0 0 1px var(--line)}
.meta-item i{color:var(--primary);font-size:12px}
.meta-item.meta-cat{background:var(--primary-dim);color:var(--primary);box-shadow:inset 0 0 0 1px rgba(18,217,160,.28)}
.meta-mono{font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.04em;font-weight:500}

/* ---------- layout ---------- */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:48px;align-items:start}
.article-cover{
  margin:0 0 34px;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-card);position:relative;aspect-ratio:16/9;background:var(--card);
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-cover figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:10px 18px;
  font-size:12px;color:var(--muted);background:linear-gradient(180deg,transparent,rgba(7,8,10,.88));
}

/* ---------- article body ---------- */
.article-body{max-width:760px;font-size:16px;line-height:1.9;color:#E4E8E6}
.article-body > * + *{margin-top:1.2em}
.article-body p{margin:0}
.article-body > p + p{margin-top:1.2em}
.article-body h2{
  font-size:clamp(1.35rem,2.2vw,1.72rem);line-height:1.35;font-weight:800;
  margin-top:2.4em;padding-left:16px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 12px rgba(18,217,160,.7);
}
.article-body h3{font-size:1.15rem;font-weight:700;margin-top:1.9em;color:var(--text)}
.article-body a{color:var(--primary);border-bottom:1px solid var(--primary-soft)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body strong{color:#FFFFFF}
.article-body ul,.article-body ol{margin:1.2em 0;padding-left:0}
.article-body li{position:relative;padding-left:22px;margin:.6em 0;color:var(--muted)}
.article-body ul > li::before{
  content:"";position:absolute;left:4px;top:.82em;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px rgba(18,217,160,.55);
}
.article-body ol{counter-reset:ln}
.article-body ol > li{counter-increment:ln}
.article-body ol > li::before{
  content:counter(ln);position:absolute;left:0;top:.35em;
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:12px;color:var(--primary);
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--primary);
  background:var(--bg-2);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--muted);
}
.article-body img{border-radius:var(--r-md);margin:1.6em auto;box-shadow:var(--shadow-card)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:10px;font-size:12px;color:var(--weak);text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--bg-2);color:var(--text)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* ---------- toc ---------- */
.article-aside{position:sticky;top:96px}
.toc-toggle{
  display:none;width:100%;align-items:center;justify-content:space-between;
  padding:12px 16px;border-radius:var(--r-sm);background:var(--card);
  border:1px solid var(--line);color:var(--text);font-weight:600;cursor:pointer;
}
.toc-toggle:hover{border-color:var(--primary-soft);color:var(--primary)}
.toc-card{
  background:var(--card);border-radius:var(--r-lg);padding:22px 20px;
  box-shadow:var(--shadow-card);
}
.toc-title{
  font-size:12px;letter-spacing:.14em;color:var(--weak);margin-bottom:14px;
  font-family:"JetBrains Mono",ui-monospace,monospace;text-transform:uppercase;
}
.toc-list li{margin:0}
.toc-list a{
  display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--muted);
  border-left:2px solid transparent;line-height:1.5;
}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.toc-list a.is-active{color:var(--primary);border-left-color:var(--primary);background:var(--primary-dim)}
.toc-list li.toc-h3 a{padding-left:22px;font-size:13px;color:var(--weak)}

/* ---------- tags & share ---------- */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:40px;padding-top:26px;border-top:1px solid var(--line);
}
.tag{
  padding:6px 14px;border-radius:999px;font-size:13px;color:var(--muted);
  background:rgba(255,255,255,.05);box-shadow:inset 0 0 0 1px var(--line);
}
.tag:hover{color:var(--primary);box-shadow:inset 0 0 0 1px var(--primary-soft)}
.share-group{margin-left:auto;display:flex;align-items:center;gap:8px}
.share-btn{
  width:36px;height:36px;border-radius:999px;display:grid;place-items:center;
  background:rgba(255,255,255,.05);color:var(--muted);font-size:14px;
  box-shadow:inset 0 0 0 1px var(--line);
}
.share-btn:hover{color:var(--primary);box-shadow:inset 0 0 0 1px var(--primary-soft)}

/* ---------- inline cta ---------- */
.inline-cta{
  margin-top:48px;border-radius:var(--r-lg);padding:30px 32px;
  background:linear-gradient(135deg,rgba(18,217,160,.14),rgba(18,217,160,.03));
  box-shadow:0 0 0 1px rgba(18,217,160,.28),0 18px 40px rgba(0,0,0,.5);
}
.inline-cta h2{font-size:1.3rem;font-weight:800}
.inline-cta p{margin-top:12px;color:var(--muted);font-size:15px;max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px;align-items:center}

/* ---------- related ---------- */
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.eyebrow{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:12px;letter-spacing:.16em;
  color:var(--primary);margin-bottom:10px;
}
.section-title{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:800;line-height:1.3}
.related-list{display:flex;flex-direction:column;gap:18px}
.related-item{
  display:flex;gap:20px;align-items:flex-start;
  background:var(--card);border-radius:var(--r-lg);padding:18px;
  box-shadow:var(--shadow-card);position:relative;overflow:hidden;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.related-item::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;border-radius:2px;
  background:var(--primary);transform:scaleY(0);transform-origin:top;
  transition:transform .28s var(--ease);
}
.related-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.related-item:hover::before{transform:scaleY(1)}
.related-thumb{
  flex:0 0 168px;aspect-ratio:16/11;border-radius:var(--r-md);overflow:hidden;background:var(--bg-2);
}
.related-thumb img{width:100%;height:100%;object-fit:cover}
.related-copy{flex:1 1 auto;min-width:0}
.related-copy h3{font-size:17px;font-weight:700;line-height:1.5}
.related-item:hover .related-copy h3{color:var(--primary)}
.related-copy p{margin-top:8px;font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;font-size:12px;color:var(--weak)}
.badge-soft{
  padding:4px 12px;border-radius:999px;font-size:12px;
  background:var(--primary-dim);color:var(--primary);font-weight:600;
}
.back-entry{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  margin-top:40px;padding-top:28px;border-top:1px solid var(--line);
}

/* ---------- final cta ---------- */
.final-cta{padding:0 0 96px}
.final-cta-inner{
  border-radius:18px;padding:52px 48px;
  background:radial-gradient(120% 160% at 12% 0%,rgba(18,217,160,.18),rgba(16,18,21,0) 58%),var(--bg-2);
  box-shadow:0 0 0 1px rgba(18,217,160,.24),0 24px 60px rgba(0,0,0,.6);
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.final-cta-copy{max-width:620px}
.final-cta h2{font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.28}
.final-cta p{margin-top:14px;color:var(--muted);font-size:15px}

/* ---------- empty state ---------- */
.empty-state{
  background:var(--card);border-radius:var(--r-lg);padding:52px 32px;text-align:center;
  box-shadow:var(--shadow-card);
}
.empty-state i{font-size:34px;color:var(--primary);opacity:.85}
.empty-state h2{margin-top:18px;font-size:1.35rem}
.empty-state p{margin-top:12px;color:var(--muted);font-size:15px}
.empty-state .btn-neon{margin-top:24px}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-3);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px}
.foot-intro{margin-top:16px;color:var(--muted);font-size:14px;max-width:320px;line-height:1.85}
.foot-title{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:13px;letter-spacing:.08em;
  color:var(--weak);margin-bottom:16px;
}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:14px;color:var(--muted)}
.foot-links a:hover{color:var(--primary)}
.foot-info{font-size:14px;color:var(--muted);line-height:2}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  margin-top:52px;padding:22px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--weak);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- breakpoints ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:36px}
  .foot-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .menu-toggle{display:grid}
  .header-actions .btn-neon{display:none}
  .article-layout{grid-template-columns:1fr;gap:28px}
  .article-aside{position:static;order:-1}
  .toc-toggle{display:flex}
  .toc-card{display:none;margin-top:12px}
  .toc-card.is-open{display:block}
  .section{padding:64px 0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .final-cta-inner{padding:40px 32px}
}
@media (max-width:767px){
  .shell{padding:0 18px}
  .header-inner{height:60px}
  .brand-text{font-size:16px}
  .article-hero{padding:36px 0}
  .article-meta{gap:8px;font-size:12px}
  .meta-item{padding:5px 12px}
  .article-cover{margin-bottom:26px}
  .article-body{font-size:15.5px}
  .related-item{flex-direction:column;gap:14px}
  .related-thumb{flex:0 0 auto;width:100%;aspect-ratio:16/9}
  .inline-cta{padding:24px 20px}
  .final-cta{padding-bottom:72px}
  .final-cta-inner{padding:32px 22px;flex-direction:column;align-items:flex-start}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{justify-content:flex-start}
  .section{padding:52px 0}
}
@media (max-width:419px){
  .shell{padding:0 14px}
  .brand-text{font-size:15px}
  .article-title{font-size:1.5rem}
  .btn-neon,.btn-outline-neon{padding:10px 16px;font-size:14px}
  .cta-actions{gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --bg:#0A0B0D;
  --bg-elev:#101215;
  --card:#14171A;
  --card-2:#181C20;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --main:#12D9A0;
  --main-soft:rgba(18,217,160,.12);
  --main-line:rgba(18,217,160,.34);
  --amber:#F5C24B;
  --text:#F3F5F4;
  --muted:#A2AAA8;
  --dim:#6D7674;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:0 0 0 1px rgba(255,255,255,.06),0 18px 40px rgba(0,0,0,.55);
  --shadow-hover:0 0 0 1px rgba(18,217,160,.3),0 18px 40px rgba(0,0,0,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::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:var(--sans);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease),opacity .24s var(--ease)}
a:hover{color:var(--main)}
button,input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:4px}
::selection{background:rgba(18,217,160,.3)}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(10,11,13,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,217,160,.55),transparent);
}
.head-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--text);flex-shrink:0}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;border-radius:10px;
  background:linear-gradient(135deg,rgba(18,217,160,.24),rgba(18,217,160,.04));
  box-shadow:inset 0 0 0 1px rgba(18,217,160,.38);
  color:var(--main);font-size:15px;flex-shrink:0;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{
  position:relative;padding:8px 14px;font-size:15px;color:var(--muted);border-radius:999px;
  transition:color .24s var(--ease),background .24s var(--ease);
}
.nav-item:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-item.active{color:var(--main)}
.nav-item.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--main);box-shadow:0 0 8px rgba(18,217,160,.85);
}
.head-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--text);font-size:16px;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.nav-toggle:hover{border-color:var(--main-line);color:var(--main)}

.mobile-panel{
  position:fixed;inset:0;z-index:1100;background:rgba(7,8,10,.98);
  transform:translateY(-102%);transition:transform .38s var(--ease);
  padding:24px;display:flex;flex-direction:column;gap:6px;
}
.mobile-panel.open{transform:translateY(0)}
.mobile-panel .m-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.mobile-panel a.m-link{
  display:block;padding:16px 4px;font-size:18px;font-weight:700;color:var(--text);
  border-bottom:1px solid var(--line);opacity:0;transform:translateY(10px);
}
.mobile-panel.open a.m-link{animation:mIn .42s var(--ease) forwards}
.mobile-panel.open a.m-link:nth-child(2){animation-delay:.06s}
.mobile-panel.open a.m-link:nth-child(3){animation-delay:.12s}
.mobile-panel.open a.m-link:nth-child(4){animation-delay:.18s}
@keyframes mIn{to{opacity:1;transform:translateY(0)}}
.m-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--text);font-size:17px}

/* ============ 按钮 ============ */
.btn-neon,.btn-ghost,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-size:15px;font-weight:700;
  padding:11px 22px;border:1px solid transparent;cursor:pointer;
  position:relative;overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),filter .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-neon{background:var(--main);color:#06110D}
.btn-neon:hover{color:#06110D;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(18,217,160,.6),0 12px 28px rgba(18,217,160,.18)}
.btn-neon:active{transform:translateY(1px)}
.btn-neon::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.5) 50%,transparent 70%);
  transform:translateX(-130%);transition:transform .38s var(--ease);
}
.btn-neon:hover::after{transform:translateX(130%)}
.btn-ghost{background:transparent;border-color:var(--main-line);color:var(--main)}
.btn-ghost:hover{background:var(--main-soft);border-color:var(--main);color:var(--main);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-soft{background:var(--card);border-color:var(--line);color:var(--muted)}
.btn-soft:hover{color:var(--text);border-color:var(--line-strong);transform:translateY(-2px)}
.btn-sm{padding:8px 16px;font-size:14px}

/* ============ 分类页头 ============ */
.cat-banner{
  position:relative;overflow:hidden;min-height:360px;
  display:flex;align-items:flex-end;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
}
.cat-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,13,.7) 0%,rgba(10,11,13,.86) 55%,rgba(10,11,13,.96) 100%);
}
.cat-banner::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:72px 72px;
}
.banner-inner{position:relative;z-index:2;padding:64px 0 46px;width:100%}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--main)}
.crumb .sep{color:var(--dim)}
.crumb .now{color:var(--text)}
.cat-banner h1{
  font-size:clamp(2rem,4.6vw,3.2rem);line-height:1.14;font-weight:900;letter-spacing:-.02em;
  max-width:820px;
}
.cat-banner h1 em{font-style:normal;color:var(--main)}
.banner-lead{max-width:700px;margin-top:16px;color:var(--muted);font-size:16px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

.badge-soft,.badge-main{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;border:1px solid var(--line);background:rgba(255,255,255,.045);color:var(--muted);
}
.badge-main{background:var(--main-soft);border-color:var(--main-line);color:var(--main)}
.badge-amber{background:rgba(245,194,75,.1);border-color:rgba(245,194,75,.35);color:var(--amber)}

/* ============ 主布局 ============ */
.layout{
  display:grid;grid-template-columns:258px minmax(0,1fr);gap:52px;
  padding:80px 0 96px;
}
.side-nav{
  position:sticky;top:92px;align-self:start;
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--card);padding:18px;
  box-shadow:var(--shadow-card);
}
.side-title{font-size:12px;letter-spacing:.08em;color:var(--dim);margin-bottom:12px}
.side-nav a{
  display:block;padding:9px 12px;border-radius:9px;font-size:14px;color:var(--muted);
  border-left:2px solid transparent;transition:all .24s var(--ease);
}
.side-nav a:hover{color:var(--text);background:rgba(255,255,255,.045);border-left-color:var(--main)}
.side-nav .side-cta{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.side-nav .side-cta .btn-neon,.side-nav .side-cta .btn-ghost{width:100%;padding:10px 14px;font-size:14px}

.block{margin-bottom:60px;scroll-margin-top:100px}
.block:last-child{margin-bottom:0}
.block h2{
  font-size:clamp(1.35rem,2.4vw,1.75rem);font-weight:800;line-height:1.3;
  display:flex;align-items:center;gap:12px;margin-bottom:16px;
}
.block h2::before{
  content:"";width:5px;height:22px;border-radius:3px;background:var(--main);
  box-shadow:0 0 10px rgba(18,217,160,.65);flex-shrink:0;
}
.block h3{font-size:1.05rem;font-weight:700;margin:26px 0 10px}
.block p{color:var(--muted);margin-bottom:16px}
.block p:last-child{margin-bottom:0}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}

.mini-card{
  border:1px solid var(--line);background:var(--card);border-radius:var(--radius-card);
  padding:22px;transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--main-line)}
.mini-card h4{margin:0 0 8px;font-size:16px;font-weight:700;color:var(--text)}
.mini-card p{margin:0;font-size:14px;color:var(--muted);line-height:1.8}
.mini-icon{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;margin-bottom:14px;
  background:var(--main-soft);color:var(--main);font-size:15px;
}

.timeline{border-top:1px solid var(--line)}
.tl-item{
  display:grid;grid-template-columns:104px minmax(0,1fr);gap:22px;
  padding:18px 0;border-bottom:1px dashed var(--line);
}
.tl-time{
  font-family:var(--mono);font-size:14px;font-weight:500;letter-spacing:.06em;color:var(--main);
}
.tl-body h4{margin:0 0 4px;font-size:15.5px;font-weight:700}
.tl-body p{margin:0;font-size:14px;color:var(--muted)}

.check-list li{
  position:relative;padding-left:28px;color:var(--muted);margin-bottom:12px;font-size:15px;line-height:1.85;
}
.check-list li::before{
  content:"";position:absolute;left:2px;top:11px;width:11px;height:6px;
  border-left:2px solid var(--main);border-bottom:2px solid var(--main);
  transform:rotate(-45deg);
}

.note{
  border-left:3px solid var(--main);background:rgba(18,217,160,.06);
  border-radius:0 var(--radius-img) var(--radius-img) 0;padding:16px 20px;color:var(--text);font-size:15px;
  margin:18px 0;
}
.note.warn{border-left-color:var(--amber);background:rgba(245,194,75,.07)}
.note strong{color:var(--main);font-weight:700}
.note.warn strong{color:var(--amber)}

.steps{counter-reset:st;display:grid;gap:14px}
.steps li{
  counter-increment:st;position:relative;padding:18px 22px 18px 62px;
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg-elev);
  color:var(--muted);font-size:14.5px;
}
.steps li::before{
  content:counter(st,decimal-leading-zero);position:absolute;left:20px;top:17px;
  font-family:var(--mono);font-size:14px;letter-spacing:.06em;color:var(--main);
}
.steps li strong{display:block;color:var(--text);font-size:15.5px;font-weight:700;margin-bottom:4px}

.subscribe-box{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg-elev);
  padding:24px;display:flex;gap:14px;flex-wrap:wrap;align-items:center;
}
.subscribe-box input{
  flex:1 1 240px;min-width:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-btn);
  color:var(--text);padding:12px 16px;font-size:15px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.subscribe-box input::placeholder{color:var(--dim)}
.subscribe-box input:focus{outline:none;border-color:var(--main);box-shadow:0 0 0 4px rgba(18,217,160,.12)}
.form-hint{width:100%;font-size:12.5px;color:var(--dim)}

.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;margin-top:8px}
.split img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-card)}
.split h3{margin-top:0;font-size:clamp(1.2rem,2.2vw,1.5rem);font-weight:800}
.split p{font-size:15px}

/* ============ FAQ ============ */
.faq-wrap{margin-top:6px}
.faq-wrap .accordion-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  margin-top:12px;overflow:hidden;
}
.faq-wrap .accordion-button{
  background:transparent;color:var(--text);font-weight:600;font-size:16px;
  padding:19px 22px;box-shadow:none;border:0;line-height:1.6;
}
.faq-wrap .accordion-button:not(.collapsed){
  background:rgba(18,217,160,.055);color:var(--main);
  box-shadow:inset 3px 0 0 0 var(--main);
}
.faq-wrap .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;font-size:20px;line-height:1;
  color:var(--main);display:grid;place-items:center;transform:none;
}
.faq-wrap .accordion-button:not(.collapsed)::after{content:"−"}
.faq-wrap .accordion-button:focus{box-shadow:none;outline:none}
.faq-wrap .accordion-body{padding:0 22px 22px;color:var(--muted);font-size:15px;line-height:1.85}

/* ============ CTA ============ */
.cta-band{
  margin:0 0 96px;
  border:1px solid var(--main-line);border-radius:18px;
  background:linear-gradient(135deg,rgba(18,217,160,.1),rgba(18,217,160,.015));
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800;margin-bottom:10px;line-height:1.3}
.cta-band p{color:var(--muted);margin:0;max-width:560px;font-size:15px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:#07080A;border-top:1px solid var(--line);padding-top:64px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;margin-bottom:14px}
.foot-intro{color:var(--muted);font-size:14px;margin:0;max-width:330px;line-height:1.85}
.foot-title{font-size:13px;letter-spacing:.08em;color:var(--dim);margin:0 0 14px}
.foot-links{display:flex;flex-direction:column;gap:10px;font-size:14px}
.foot-links a{color:var(--muted)}
.foot-links a:hover{color:var(--main)}
.foot-info{font-size:14px;color:var(--muted);line-height:2}
.foot-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .layout{gap:40px}
}
@media (max-width:1199px){
  .layout{grid-template-columns:226px minmax(0,1fr);gap:32px;padding:68px 0 84px}
  .cta-band{padding:40px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .head-actions .btn-neon{display:none}
  .mobile-panel{display:flex}
  .layout{grid-template-columns:1fr;gap:34px;padding:56px 0 72px}
  .side-nav{position:static}
  .grid-3{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cat-banner{min-height:330px}
}
@media (max-width:767px){
  .shell{padding:0 18px}
  .head-inner{height:60px;gap:12px}
  .brand{font-size:15.5px}
  .brand-mark{width:30px;height:30px;font-size:13px}
  .banner-inner{padding:52px 0 36px}
  .cat-banner{min-height:300px}
  .layout{padding:48px 0 60px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .tl-item{grid-template-columns:1fr;gap:6px}
  .cta-band{padding:28px;flex-direction:column;align-items:flex-start;margin-bottom:64px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .block{margin-bottom:48px}
  .subscribe-box{padding:18px}
  .btn-neon,.btn-ghost{padding:10px 18px;font-size:14.5px}
}
@media (max-width:400px){
  .brand-text{font-size:14.5px}
  .cat-banner h1{font-size:1.75rem}
  .cta-actions{width:100%}
  .cta-actions .btn-neon,.cta-actions .btn-ghost{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg:#0A0B0D;
  --bg-2:#101215;
  --card:#14171A;
  --line:rgba(255,255,255,.08);
  --primary:#12D9A0;
  --primary-soft:rgba(18,217,160,.12);
  --accent:#F5C24B;
  --text:#F3F5F4;
  --text-2:#A2AAA8;
  --text-3:#6D7674;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 0 0 1px rgba(255,255,255,.06),0 18px 40px rgba(0,0,0,.55);
  --shadow-hover:0 0 0 1px rgba(18,217,160,.30),0 22px 48px rgba(0,0,0,.60);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sec-space:104px;
}
*,*::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:var(--font-sans);font-size:16px;line-height:1.9;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;line-height:1.16}
p{margin:0}
ul{margin:0;padding:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
img{max-width:100%;display:block}
button{font-family:inherit}
::selection{background:rgba(18,217,160,.3);color:#04211A}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
section[id],div[id]{scroll-margin-top:92px}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sec{padding:var(--sec-space) 0}
.sec-tight{padding:64px 0}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1035;
  background:rgba(10,11,13,.94);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  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,rgba(18,217,160,.55),transparent);
  pointer-events:none;
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:14px;
  box-shadow:inset 0 0 0 1px rgba(18,217,160,.28);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-item{
  position:relative;padding:10px 14px;font-size:15px;color:var(--text-2);border-radius:8px;
}
.nav-item::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:transparent;transition:background .24s var(--ease),box-shadow .24s var(--ease);
}
.nav-item:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-item.active{color:var(--primary);font-weight:600}
.nav-item.active::after{background:var(--primary);box-shadow:0 0 10px rgba(18,217,160,.8)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;color:var(--text);
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.nav-toggle:hover{border-color:rgba(18,217,160,.5);color:var(--primary)}

/* ---------- 按钮 ---------- */
.btn{
  --bs-btn-focus-box-shadow:none;
  border-radius:var(--r-btn);font-weight:700;letter-spacing:.02em;border:1px solid transparent;
  transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn-neon{background:var(--primary);color:#04211A;padding:13px 26px;position:relative;overflow:hidden}
.btn-neon::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);transition:left .4s var(--ease);
}
.btn-neon:hover{background:#2FEBB5;color:#04211A;transform:translateY(-2px);box-shadow:0 12px 28px rgba(18,217,160,.28)}
.btn-neon:hover::after{left:120%}
.btn-neon:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--primary);border-color:rgba(18,217,160,.5);padding:13px 26px}
.btn-ghost:hover{background:rgba(18,217,160,.08);color:var(--primary);border-color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-quiet{
  background:transparent;color:var(--text-2);padding:10px 4px;border:0;
  border-bottom:1px solid rgba(255,255,255,.18);border-radius:0;
}
.btn-quiet:hover{color:var(--primary);border-bottom-color:var(--primary)}
.btn-nav{padding:9px 18px;font-size:14px}
.btn-sm-pad{padding:10px 20px;font-size:14px}

/* ---------- 通栏页头 ---------- */
.cat-hero{
  position:relative;overflow:hidden;display:flex;align-items:flex-end;
  min-height:400px;padding:104px 0 64px;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,13,.90) 0%,rgba(10,11,13,.68) 45%,rgba(10,11,13,.96) 100%);
}
.cat-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:76px 76px;
}
.cat-hero .shell{position:relative;z-index:2}
.crumbs{display:flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--text-3);margin-bottom:22px}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:var(--text-3)}
.cat-hero h1{
  font-size:clamp(2.4rem,6vw,4.6rem);font-weight:900;letter-spacing:-.02em;line-height:1.06;
}
.hero-sub{margin-top:20px;max-width:640px;color:var(--text-2);font-size:clamp(1rem,1.5vw,1.125rem);line-height:1.9}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:18px 48px;margin-top:38px;padding-top:24px;
  border-top:1px solid var(--line);
}
.fact{display:flex;flex-direction:column;gap:2px}
.fact b{font-family:var(--font-mono);font-size:15px;font-weight:500;letter-spacing:.06em;color:var(--text)}
.fact span{font-size:12px;color:var(--text-3);letter-spacing:.04em}

/* ---------- 筛选胶囊 ---------- */
.filter-bar{position:relative;z-index:5;margin-top:-34px}
.filter-inner{
  display:flex;gap:10px;overflow-x:auto;padding:14px 16px;
  background:var(--bg-2);border-radius:var(--r-pill);
  box-shadow:var(--shadow);scrollbar-width:none;
}
.filter-inner::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;padding:9px 20px;border-radius:var(--r-pill);font-size:14px;
  color:var(--text-2);border:1px solid var(--line);white-space:nowrap;
  transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease),transform .22s var(--ease);
}
.pill:hover{color:var(--text);border-color:rgba(18,217,160,.45);transform:translateY(-1px)}
.pill.is-active{background:var(--primary);color:#04211A;font-weight:700;border-color:transparent}

/* ---------- 板块标题 ---------- */
.sec-head{max-width:740px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);
  font-size:12px;letter-spacing:.16em;color:var(--primary);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary)}
.sec-head.center .eyebrow::before{display:none}
.sec-title{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;letter-spacing:-.01em}
.sec-sub{margin-top:16px;color:var(--text-2);font-size:15px;line-height:1.9}

/* ---------- 通道卡片 ---------- */
.ch-card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--card);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.ch-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;z-index:3;
  background:transparent;transition:background .28s var(--ease);
}
.ch-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.ch-card:hover::before{background:var(--primary)}
.ch-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:#0d0f12}
.ch-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.ch-card:hover .ch-thumb img{transform:scale(1.04)}
.ch-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,13,0) 42%,rgba(10,11,13,.78) 100%);
}
.ch-badge{position:absolute;left:16px;top:16px;z-index:2}
.ch-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.ch-title{font-size:17px;font-weight:700;line-height:1.55;transition:color .22s var(--ease)}
.ch-card:hover .ch-title{color:var(--primary)}
.ch-desc{font-size:14px;color:var(--text-2);line-height:1.85}
.ch-meta{
  margin-top:auto;padding-top:14px;display:flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--text-3);
  border-top:1px solid var(--line);
}
.ch-meta i{color:var(--primary);font-size:11px}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;
  border-radius:var(--r-pill);font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  background:rgba(18,217,160,.10);color:var(--primary);border:1px solid rgba(18,217,160,.26);
  backdrop-filter:blur(6px);
}
.tag-accent{background:rgba(245,194,75,.12);color:var(--accent);border-color:rgba(245,194,75,.3)}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  background:
    radial-gradient(120% 100% at 0% 0%,rgba(18,217,160,.14),transparent 55%),
    var(--bg-2);
  box-shadow:var(--shadow);padding:48px 44px;
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,217,160,.6),transparent);
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:800}
.cta-band p{margin-top:14px;color:var(--text-2);font-size:15px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-side{display:flex;flex-direction:column;gap:12px;justify-content:center}
.cta-point{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2)}
.cta-point i{color:var(--primary);margin-top:7px;font-size:12px}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  position:relative;background:var(--card);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:28px 24px;height:100%;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-num{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;color:var(--primary);
  display:block;margin-bottom:16px;
}
.step h3{font-size:16px;font-weight:700;margin-bottom:10px}
.step p{font-size:14px;color:var(--text-2);line-height:1.85}

/* ---------- 图文交替 ---------- */
.alt-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.alt-row + .alt-row{margin-top:88px}
.alt-row.flip .alt-media{order:2}
.alt-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow);aspect-ratio:16/11;background:#0d0f12;
}
.alt-media img{width:100%;height:100%;object-fit:cover}
.alt-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(10,11,13,.18),rgba(10,11,13,.55));
}
.alt-copy h2{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:800;line-height:1.28}
.alt-copy p{margin-top:18px;color:var(--text-2);font-size:15px;line-height:1.95}
.check-list{list-style:none;margin-top:24px;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.8}
.check-list i{color:var(--primary);font-size:12px;margin-top:8px}

/* ---------- FAQ ---------- */
.accordion-item{
  background:var(--card);border:0!important;border-radius:var(--r-card)!important;
  margin-top:12px;overflow:hidden;box-shadow:var(--shadow);
}
.accordion-button{
  position:relative;background:transparent!important;color:var(--text);
  font-size:16px;font-weight:600;line-height:1.6;padding:20px 64px 20px 22px;
  box-shadow:none!important;border-radius:var(--r-card)!important;
}
.accordion-button:hover{color:var(--primary)}
.accordion-button:not(.collapsed){color:var(--primary);background:rgba(18,217,160,.05)!important}
.accordion-button::after{
  content:"";width:16px;height:2px;flex:0 0 16px;margin-left:auto;
  background:var(--text-2);border-radius:2px;
  transition:background .24s var(--ease);
}
.accordion-button:not(.collapsed)::after{background:var(--primary);transform:none!important;background-image:none!important}
.accordion-button::before{
  content:"";position:absolute;right:22px;top:calc(50% - 1px);width:16px;height:2px;
  background:var(--text-2);border-radius:2px;transform:rotate(90deg);
  transition:transform .28s var(--ease),opacity .24s var(--ease),background .24s var(--ease);
}
.accordion-button:not(.collapsed)::before{transform:rotate(0);opacity:0;background:var(--primary)}
.accordion-body{
  padding:0 22px 24px;color:var(--text-2);font-size:15px;line-height:1.9;
  border-left:3px solid var(--primary);margin-left:0;
}
.accordion-item:has(.accordion-button:not(.collapsed)){box-shadow:var(--shadow-hover)}

/* ---------- 页脚 ---------- */
.site-footer{background:#07080A;border-top:1px solid var(--line);padding:72px 0 28px;margin-top:8px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;margin-bottom:16px}
.foot-intro{margin:0;color:var(--text-2);font-size:14px;line-height:1.9;max-width:340px}
.foot-title{font-size:13px;letter-spacing:.08em;color:var(--text-3);margin:0 0 18px}
.foot-links{display:flex;flex-direction:column;gap:12px}
.foot-links a{font-size:14px;color:var(--text-2)}
.foot-links a:hover{color:var(--primary)}
.foot-info{font-size:14px;color:var(--text-2);line-height:2}
.foot-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:56px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- 移动端抽屉 ---------- */
.mobile-nav{background:var(--bg-2)!important;color:var(--text);border-left:1px solid var(--line);width:300px}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.mobile-nav .offcanvas-body{padding:24px 20px}
.mobile-nav .m-link{
  display:block;padding:16px 4px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mobile-nav .m-link:hover{color:var(--text)}
.mobile-nav .m-link.active{color:var(--primary);font-weight:700}
.btn-close-neon{
  width:36px;height:36px;border-radius:9px;border:1px solid var(--line);
  background:transparent;color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;
}
.btn-close-neon:hover{color:var(--primary);border-color:rgba(18,217,160,.45)}

/* ---------- 入场动效 ---------- */
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.reveal{animation:rise .6s var(--ease) backwards}
.reveal.d1{animation-delay:.06s}
.reveal.d2{animation-delay:.12s}
.reveal.d3{animation-delay:.18s}
.reveal.d4{animation-delay:.24s}
.reveal.d5{animation-delay:.3s}
.reveal.d6{animation-delay:.36s}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  :root{--sec-space:96px}
}
@media (max-width:1199px){
  :root{--sec-space:88px}
  .alt-row{gap:40px}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-nav{display:none}
  .header-inner{height:62px}
  .cat-hero{min-height:360px;padding:88px 0 52px}
  .filter-bar{margin-top:-26px}
  .alt-row{grid-template-columns:1fr;gap:28px}
  .alt-row.flip .alt-media{order:0}
  .alt-row + .alt-row{margin-top:64px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  :root{--sec-space:56px}
  .shell{padding:0 18px}
  .sec-tight{padding:48px 0}
  .header-inner{gap:12px}
  .brand-text{font-size:15px}
  .cat-hero{padding:76px 0 44px;min-height:320px}
  .hero-cta{gap:10px}
  .hero-cta .btn{flex:1 1 100%;text-align:center}
  .hero-facts{gap:14px 26px;margin-top:28px;padding-top:20px}
  .cta-band{padding:32px 22px;border-radius:16px}
  .cta-actions .btn{flex:1 1 100%;text-align:center}
  .steps{grid-template-columns:1fr;gap:14px}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-bottom{flex-direction:column;gap:8px;margin-top:40px}
  .accordion-button{font-size:15px;padding:18px 56px 18px 18px}
  .accordion-button::before{right:18px}
  .accordion-body{padding:0 18px 20px;font-size:14px}
}
@media (max-width:399px){
  .brand-text{font-size:14px}
  .sec-title{font-size:1.4rem}
  .pill{padding:8px 16px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}