/* roulang page: index */
:root{
  --bg:#0B0718;
  --bg-alt:#0F0A20;
  --bg-alt2:#120C24;
  --surface:#141026;
  --raised:#1D1738;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#F2EFFF;
  --text-2:rgba(242,239,255,.72);
  --text-3:rgba(242,239,255,.5);
  --purple:#6C4BFF;
  --purple-2:#B44BFF;
  --cyan:#3DE0D8;
  --amber:#FF8A3D;
  --grad:linear-gradient(120deg,#6C4BFF 0%,#B44BFF 100%);
  --grad-flow:linear-gradient(120deg,#6C4BFF 0%,#B44BFF 48%,#3DE0D8 100%);
  --r-card:20px;
  --r-hero:28px;
  --r-btn:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 20px 48px rgba(108,75,255,.40);
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:.35s;
  --sp:96px;
}
*,*::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:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--cyan);text-decoration:none;background-color:transparent;}
a:hover{color:#8DF3ED;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;}
:focus{outline:none;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:6px;
}
.grid-container{
  max-width:1240px;
  margin:0 auto;
  padding-left:28px;
  padding-right:28px;
  width:100%;
}
.num,.stat-num,.news-date,.num-index{font-variant-numeric:tabular-nums;}

/* ============ HEADER / NAV ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  background:rgba(11,7,24,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .35s var(--ease),background .35s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);}
.main-nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  color:var(--text);
  flex:0 0 auto;
}
.brand-mark{
  width:34px;height:34px;
  flex:0 0 34px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  background:radial-gradient(circle at 32% 28%,rgba(108,75,255,.55),rgba(11,7,24,.2) 70%);
}
.brand-mark svg{width:20px;height:20px;display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;letter-spacing:-.01em;}
.brand-sub{font-size:10.5px;color:var(--text-3);letter-spacing:.16em;margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:34px;}
.nav-links a{
  position:relative;
  display:inline-block;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
  transition:color .25s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;bottom:0;
  width:20px;height:2px;
  border-radius:2px;
  background:var(--grad);
  transform:translateX(-50%) scaleX(0);
  transition:transform .3s var(--ease);
}
.nav-links a:hover{color:var(--text);}
.nav-links a.is-active{color:var(--text);}
.nav-links a.is-active::after{transform:translateX(-50%) scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),filter var(--dur) var(--ease),border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 8px 24px rgba(108,75,255,.30);
}
.btn-primary:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 36px rgba(108,75,255,.52);}
.btn-primary:active{transform:translateY(0);filter:brightness(.94);box-shadow:0 6px 18px rgba(108,75,255,.30);}
.btn-ghost{
  border-color:rgba(255,255,255,.24);
  color:var(--text);
  background:transparent;
}
.btn-ghost:hover{color:var(--text);border-color:var(--cyan);background:rgba(61,224,216,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-2);
  cursor:pointer;
  transition:color .25s var(--ease),border-color .25s var(--ease),background-color .25s var(--ease);
}
.icon-btn:hover{color:var(--cyan);border-color:rgba(61,224,216,.5);background:rgba(61,224,216,.08);}
.icon-btn svg{width:17px;height:17px;display:block;}
.menu-toggle{display:none;}
.menu-toggle .bar{display:block;width:18px;height:1.5px;background:currentColor;border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease);}
.menu-toggle .bar + .bar{margin-top:4px;}
.menu-toggle.is-open .bar:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.menu-toggle.is-open .bar:nth-child(2){opacity:0;}
.menu-toggle.is-open .bar:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}

/* search panel */
.search-panel{
  position:fixed;
  top:72px;left:0;right:0;
  z-index:78;
  background:rgba(15,10,32,.96);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  padding:22px 0 26px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
}
.search-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.search-form{display:flex;gap:12px;align-items:center;flex-wrap:wrap;}
.search-form input{
  flex:1 1 320px;
  height:48px;
  padding:0 18px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#120E24;
  color:var(--text);
}
.search-form input::placeholder{color:var(--text-3);}
.search-form input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(61,224,216,.18);}
.search-hint{margin-top:14px;font-size:13px;color:var(--text-3);display:flex;gap:16px;flex-wrap:wrap;}
.search-hint a{color:var(--text-2);border-bottom:1px solid var(--line-strong);padding-bottom:1px;}
.search-hint a:hover{color:var(--cyan);border-bottom-color:var(--cyan);}

/* mobile drawer */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:rgba(11,7,24,.98);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  padding:26px 24px 34px;
  display:flex;
  flex-direction:column;
  transform:translateX(100%);
  transition:transform .35s var(--ease);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:44px;margin-bottom:22px;}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{
  font-size:22px;
  color:var(--text);
  line-height:56px;
  border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--cyan);}
.drawer-foot{margin-top:auto;padding-top:28px;}
.drawer-foot .btn{width:100%;}

/* ============ HERO ============ */
.hero{
  position:relative;
  min-height:82vh;
  display:flex;
  align-items:flex-end;
  padding:150px 0 66px;
  overflow:hidden;
  background:var(--bg);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.55;
  transform:scale(1.03);
}
.hero-glow{
  position:absolute;
  inset:0;
  background:
    radial-gradient(60% 55% at 12% 22%,rgba(108,75,255,.34),transparent 68%),
    radial-gradient(45% 45% at 88% 78%,rgba(61,224,216,.20),transparent 70%),
    radial-gradient(30% 30% at 62% 12%,rgba(180,75,255,.22),transparent 72%);
  pointer-events:none;
}
.hero-shade{
  position:absolute;
  inset:0;
  background:linear-gradient(to top,#0B0718 10%,rgba(11,7,24,.86) 42%,rgba(11,7,24,.34) 100%);
}
.hero-inner{position:relative;z-index:3;max-width:840px;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 13px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(20,16,38,.66);
  font-size:12.5px;
  color:var(--text-2);
  white-space:nowrap;
}
.badge b{color:var(--cyan);font-weight:600;font-variant-numeric:tabular-nums;}
.hero h1{
  font-size:clamp(30px,4.5vw,54px);
  line-height:1.15;
  letter-spacing:-.02em;
  font-weight:700;
  margin-bottom:22px;
}
.hero-lead{
  font-size:17.5px;
  line-height:1.85;
  color:var(--text-2);
  max-width:660px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:34px;}
.hero-trust{
  margin-top:30px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  font-size:12.5px;
  color:var(--text-3);
  letter-spacing:.02em;
}

/* ============ SECTIONS ============ */
.section{padding:var(--sp) 0;border-top:1px solid var(--line);}
.section-first{border-top:0;}
.section-alt{background:var(--bg-alt);}
.section-alt2{background:var(--bg-alt2);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:34px;
  flex-wrap:wrap;
}
.section-title{padding-left:18px;position:relative;}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:.2em;bottom:.25em;
  width:4px;border-radius:2px;
  background:var(--grad);
}
.section-title h2{
  font-size:clamp(23px,2.5vw,30px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
}
.section-sub{margin-top:8px;font-size:14.5px;color:var(--text-3);line-height:1.7;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:500;
  color:var(--cyan);
  white-space:nowrap;
}
.text-link .arrow{display:inline-block;transition:transform .3s var(--ease);}
.text-link:hover .arrow{transform:translateX(4px);}

/* stats */
.stat{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  height:100%;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,75,255,.4);}
.stat-num{display:block;font-size:34px;font-weight:700;line-height:1.1;color:var(--cyan);letter-spacing:-.02em;}
.stat-unit{font-size:15px;color:var(--text-2);margin-left:4px;font-weight:500;}
.stat-label{display:block;margin-top:10px;font-size:14px;color:var(--text-2);}
.stat-note{display:block;margin-top:4px;font-size:12.5px;color:var(--text-3);}
.stat-cell{margin-bottom:28px;}

/* rail */
.rail-wrap{position:relative;}
.rail{
  display:flex;
  gap:20px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding-bottom:10px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail-card{flex:0 0 236px;scroll-snap-align:start;}
.poster{
  position:relative;
  aspect-ratio:3/4;
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.poster img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur) var(--ease);}
.poster::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(11,7,24,.92) 0%,rgba(11,7,24,.55) 34%,rgba(11,7,24,0) 64%);
  pointer-events:none;
}
.rail-card:hover .poster{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,75,255,.42);}
.rail-card:hover .poster img{transform:scale(1.06);}
.poster-title{
  position:absolute;
  left:15px;right:15px;bottom:14px;
  z-index:2;
  font-size:15px;
  font-weight:600;
  line-height:1.42;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.poster-badge{position:absolute;right:12px;top:12px;z-index:2;}
.rail-arrow{
  position:absolute;
  top:calc(50% - 12px);
  transform:translateY(-50%);
  width:44px;height:44px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  background:rgba(20,16,38,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  color:var(--text);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  z-index:4;
  transition:border-color .3s var(--ease),background-color .3s var(--ease),transform .3s var(--ease);
}
.rail-arrow:hover{border-color:var(--cyan);background:rgba(61,224,216,.16);}
.rail-arrow svg{width:16px;height:16px;}
.rail-prev{left:-14px;}
.rail-next{right:-14px;}

/* rec grid */
.rec-grid{display:grid;grid-template-columns:7fr 5fr;gap:28px;align-items:stretch;}
.rec-right{display:grid;grid-template-rows:1fr 1fr;gap:28px;min-height:0;}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,75,255,.42);}
.card-wide .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--raised);}
.card-wide .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur) var(--ease);}
.card-wide:hover .thumb img{transform:scale(1.05);}
.thumb-veil{
  position:absolute;left:0;right:0;bottom:0;height:56%;
  background:linear-gradient(to top,rgba(11,7,24,.9),rgba(11,7,24,0));
  pointer-events:none;
}
.card-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.card-body h3{font-size:19px;line-height:1.45;font-weight:600;}
.card-body h3 a{color:var(--text);}
.card-body h3 a:hover{color:var(--cyan);}
.card-summary{
  font-size:14.5px;
  line-height:1.7;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:auto;}
.card-small{flex-direction:row;gap:0;}
.card-small .thumb{position:relative;flex:0 0 42%;overflow:hidden;background:var(--raised);}
.card-small .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur) var(--ease);}
.card-small:hover .thumb img{transform:scale(1.05);}
.card-small .card-body{padding:20px 20px 20px;gap:9px;justify-content:center;}
.card-small .card-body h3{font-size:16.5px;line-height:1.4;}
.card-small .card-summary{-webkit-line-clamp:2;font-size:13.5px;}

.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  color:var(--amber);
  border:1px solid rgba(255,138,61,.4);
  background:rgba(255,138,61,.12);
  white-space:nowrap;
}
.time-mark{font-size:12.5px;color:var(--amber);font-variant-numeric:tabular-nums;}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 11px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(20,16,38,.7);
  font-size:12.5px;
  color:var(--text-2);
  white-space:nowrap;
}
.pill b{color:var(--cyan);font-weight:600;font-variant-numeric:tabular-nums;}

/* playlists */
.playlist-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(288px,1fr));gap:28px;}
.playlist{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.playlist:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,75,255,.42);}
.playlist-thumb{
  border-radius:16px;
  overflow:hidden;
  aspect-ratio:4/5;
  max-height:300px;
  background:var(--raised);
  margin-bottom:22px;
}
.playlist-thumb img{width:100%;height:100%;object-fit:cover;}
.playlist-title{font-size:18px;font-weight:600;margin-bottom:6px;}
.playlist-note{font-size:13.5px;color:var(--text-3);margin-bottom:16px;line-height:1.7;}
.num-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);}
.num-list li:last-child{border-bottom:0;padding-bottom:0;}
.num{flex:0 0 32px;font-size:12.5px;color:var(--cyan);letter-spacing:.08em;padding-top:4px;}
.num-title{display:block;font-size:15px;font-weight:600;line-height:1.5;}
.num-desc{display:block;font-size:13px;color:var(--text-3);line-height:1.7;margin-top:3px;}

/* news */
.news-list{border-top:1px solid var(--line);}
.news-item{
  display:flex;
  gap:24px;
  padding:24px 12px;
  border-bottom:1px solid var(--line);
  border-radius:12px;
  transition:background-color .3s var(--ease);
}
.news-item:hover{background:rgba(108,75,255,.07);}
.news-date{
  flex:0 0 96px;
  font-size:13px;
  color:var(--text-3);
  line-height:1.6;
  padding-top:3px;
  word-break:break-all;
}
.news-main{flex:1 1 auto;min-width:0;}
.news-title{font-size:17.5px;font-weight:600;line-height:1.5;margin:8px 0 8px;}
.news-title a{color:var(--text);}
.news-title a:hover{color:var(--cyan);}
.news-summary{font-size:14.5px;line-height:1.75;color:var(--text-2);margin-bottom:10px;}
.empty-state{
  padding:52px 24px;
  text-align:center;
  border:1px dashed var(--line-strong);
  border-radius:var(--r-card);
}
.empty-graphic{
  width:56px;height:56px;
  margin:0 auto 18px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
}
.empty-graphic svg{width:24px;height:24px;}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:18px;}

/* faq + form */
.split-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:start;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 40px 20px 0;
  position:relative;
  font-size:16.5px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
  transition:color .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--cyan);}
.faq-item summary::before,
.faq-item summary::after{
  content:"";
  position:absolute;
  right:8px;top:31px;
  width:14px;height:1.5px;
  background:var(--text-2);
  border-radius:2px;
  transition:transform .3s var(--ease),background-color .3s var(--ease);
}
.faq-item summary::after{transform:rotate(90deg);}
.faq-item[open] summary::after{transform:rotate(0deg);}
.faq-item[open] summary::before,
.faq-item[open] summary::after{background:var(--cyan);}
.faq-body{padding:0 40px 22px 0;font-size:15px;line-height:1.85;color:var(--text-2);}
.faq-body p + p{margin-top:1em;}

.form-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-hero);
  padding:32px 30px;
  box-shadow:var(--shadow);
}
.form-card h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.form-card .form-note{font-size:13.5px;color:var(--text-3);line-height:1.7;margin-bottom:24px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px;}
.field input,.field select{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#120E24;
  color:var(--text);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
  appearance:none;
  -webkit-appearance:none;
}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,rgba(242,239,255,.6) 50%),linear-gradient(135deg,rgba(242,239,255,.6) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;
  background-size:5px 5px,5px 5px;
  background-repeat:no-repeat;
}
.field input::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(61,224,216,.18);}
.field.is-error input{border-color:var(--amber);}
.form-card .btn{width:100%;}
.form-feedback{margin-top:14px;font-size:13.5px;color:var(--text-3);min-height:20px;}
.form-feedback.is-error{color:var(--amber);}
.form-feedback.is-ok{color:var(--cyan);}

/* cta */
.cta-band{
  position:relative;
  border-radius:var(--r-hero);
  padding:48px;
  background:linear-gradient(120deg,rgba(108,75,255,.92) 0%,rgba(108,75,255,.72) 42%,rgba(61,224,216,.78) 100%);
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  box-shadow:0 20px 48px rgba(108,75,255,.28);
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) .8px,transparent .9px),radial-gradient(rgba(255,255,255,.35) .6px,transparent .7px);
  background-size:90px 90px,150px 150px;
  background-position:0 0,40px 60px;
  opacity:.5;
  pointer-events:none;
}
.cta-text{position:relative;z-index:2;max-width:640px;}
.cta-text h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;color:#fff;}
.cta-text p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.88);}
.cta-band .btn{position:relative;z-index:2;background:#0B0718;color:#fff;box-shadow:0 10px 28px rgba(0,0,0,.35);}
.cta-band .btn:hover{background:#170F30;color:#fff;filter:none;transform:translateY(-2px);box-shadow:0 16px 34px rgba(0,0,0,.45);}

/* footer */
.site-footer{
  background:var(--bg-alt2);
  border-top:1px solid var(--line);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.8;margin-top:16px;max-width:320px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:18px;letter-spacing:.02em;}
.footer-links li{margin-bottom:12px;}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .25s var(--ease);}
.footer-links a:hover{color:var(--cyan);}
.footer-contact li{font-size:14px;color:var(--text-2);margin-bottom:12px;line-height:1.7;}
.social-row{display:flex;gap:12px;margin-top:18px;}
.social-row a{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--text-2);
  transition:color .25s var(--ease),border-color .25s var(--ease),background-color .25s var(--ease);
}
.social-row a:hover{color:var(--cyan);border-color:rgba(61,224,216,.5);background:rgba(61,224,216,.08);}
.social-row svg{width:16px;height:16px;}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid var(--line);
  padding:24px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.is-visible{opacity:1;transform:translateY(0);}

/* ============ RESPONSIVE ============ */
@media (max-width:1199px){
  :root{--sp:80px;}
  .rec-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .rec-right{gap:24px;}
  .split-grid{grid-template-columns:1fr;gap:44px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .rail-prev{left:-8px;}
  .rail-next{right:-8px;}
}
@media (max-width:991px){
  :root{--sp:64px;}
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
  .main-nav{height:64px;}
  .search-panel{top:64px;}
  .hero{padding:120px 0 56px;min-height:auto;}
  .rec-grid{grid-template-columns:1fr;}
  .rec-right{grid-template-rows:auto auto;gap:24px;}
  .card-small .thumb{flex:0 0 38%;}
  .rail-card{flex:0 0 220px;}
  .rail-arrow{display:none;}
  .cta-band{padding:36px 28px;gap:26px;}
}
@media (max-width:767px){
  :root{--sp:48px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .hero{padding:104px 0 48px;}
  .hero h1{font-size:30px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .hero-actions{gap:12px;}
  .rail-card{flex:0 0 76%;}
  .news-item{flex-direction:column;gap:10px;padding:20px 6px;}
  .news-date{flex:none;padding-top:0;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .card-wide .thumb{aspect-ratio:16/10;}
  .cta-band{padding:30px 22px;border-radius:24px;}
  .cta-band .btn{width:100%;}
  .form-card{padding:26px 22px;}
  .playlist{padding:20px;}
}
@media (max-width:480px){
  .brand-sub{display:none;}
  .stat-num{font-size:28px;}
  .section-title{padding-left:14px;}
  .faq-item summary{padding-right:34px;font-size:16px;}
  .faq-body{padding-right:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --bg:#0B0718;
  --surface:#141026;
  --surface-2:#1D1738;
  --band-a:#0F0A20;
  --band-b:#120C24;
  --purple:#6C4BFF;
  --purple-light:#B44BFF;
  --cyan:#3DE0D8;
  --accent:#FF8A3D;
  --text:#F2EFFF;
  --text-2:rgba(242,239,255,.72);
  --text-3:rgba(242,239,255,.5);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --radius:20px;
  --radius-lg:28px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 20px 48px rgba(108,75,255,.40);
  --grad:linear-gradient(120deg,#6C4BFF 0%,#B44BFF 100%);
  --grad-soft:linear-gradient(120deg,rgba(108,75,255,.22),rgba(180,75,255,.12));
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:72px;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 620px at 10% -8%, rgba(108,75,255,.22), transparent 62%),
    radial-gradient(760px 520px at 94% 2%, rgba(180,75,255,.16), transparent 64%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--text);text-decoration:none;transition:color .28s var(--ease);}
a:hover{color:var(--cyan);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
.grid-container{max-width:var(--container);margin:0 auto;padding-left:28px;padding-right:28px;width:100%;}
.section{padding:96px 0;position:relative;}
.section--band{background:var(--band-a);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:28px;max-width:760px;}
.section-head h2{font-size:28px;font-weight:700;line-height:1.25;letter-spacing:-.01em;padding-left:18px;position:relative;}
.section-head h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:4px;background:var(--grad);}
.section-sub{margin-top:12px;color:var(--text-2);font-size:16px;line-height:1.8;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(11,7,24,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);}
.main-nav{height:72px;display:flex;align-items:center;gap:32px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;background:var(--grad-soft);border:1px solid var(--line);}
.brand-mark svg{width:22px;height:22px;display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--text);}
.brand-sub{font-size:10px;letter-spacing:.14em;color:var(--text-3);}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto;}
.nav-links a{position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0;}
.nav-links a::after{content:"";position:absolute;left:50%;bottom:-2px;width:0;height:2px;border-radius:2px;background:var(--grad);transform:translateX(-50%);transition:width .3s var(--ease);}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after,.nav-links a.is-active::after{width:20px;}
.nav-links a.is-active{color:var(--text);}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--text-2);
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .28s var(--ease);
}
.icon-btn svg{width:19px;height:19px;}
.icon-btn:hover{color:var(--cyan);border-color:rgba(61,224,216,.5);background:rgba(61,224,216,.08);}
.menu-toggle{display:none;flex-direction:column;gap:4px;}
.menu-toggle .bar{display:block;width:17px;height:1.5px;background:currentColor;border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease);}
.menu-toggle[aria-expanded="true"] .bar:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] .bar:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] .bar:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease),border-color .3s var(--ease),color .3s var(--ease),filter .3s var(--ease);
}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(108,75,255,.28);}
.btn-primary:hover{color:#fff;filter:brightness(1.08);box-shadow:0 14px 36px rgba(108,75,255,.45);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);filter:brightness(.94);}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:rgba(255,255,255,.02);}
.btn-ghost:hover{color:var(--cyan);border-color:rgba(61,224,216,.55);background:rgba(61,224,216,.08);transform:translateY(-2px);}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--cyan);}
.link-more svg{width:16px;height:16px;transition:transform .3s var(--ease);}
.link-more:hover svg{transform:translateX(4px);}

/* ---------- drawer / search ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:340px;max-width:88vw;z-index:120;
  background:var(--surface-2);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .38s var(--ease);
  display:flex;flex-direction:column;padding:24px 26px 32px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-title{font-size:12px;letter-spacing:.2em;color:var(--text-3);}
.drawer-links{margin-top:10px;}
.drawer-links li{border-bottom:1px solid var(--line);}
.drawer-links a{display:block;font-size:22px;line-height:56px;font-weight:600;color:var(--text-2);}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--text);}
.drawer-cta{margin-top:26px;width:100%;}
.drawer-mask{position:fixed;inset:0;background:rgba(5,2,14,.66);opacity:0;visibility:hidden;transition:opacity .35s var(--ease),visibility .35s var(--ease);z-index:110;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.search-panel{
  position:absolute;top:100%;left:0;right:0;
  background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  box-shadow:0 24px 48px rgba(0,0,0,.5);
  display:none;
}
.search-panel.is-open{display:block;}
.search-panel .grid-container{padding-top:24px;padding-bottom:26px;}
.search-form label{display:block;font-size:13px;color:var(--text-3);margin-bottom:10px;}
.search-row{display:flex;gap:14px;}
.search-row input{
  flex:1 1 auto;height:48px;border-radius:12px;border:1px solid var(--line);
  background:#120E24;color:var(--text);padding:0 16px;font-size:15px;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.search-row input::placeholder{color:var(--text-3);}
.search-row input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(61,224,216,.18);}
.search-hint{margin-top:12px;font-size:13px;color:var(--text-3);}

/* ---------- breadcrumb ---------- */
.breadcrumb{font-size:14px;color:var(--text-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{color:rgba(242,239,255,.28);}
.breadcrumb .current{color:var(--text-2);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article hero ---------- */
.article-hero{position:relative;padding:52px 0 40px;overflow:hidden;border-bottom:1px solid var(--line);}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(620px 320px at 82% 8%, rgba(180,75,255,.24), transparent 66%),
    radial-gradient(520px 300px at 6% 96%, rgba(61,224,216,.12), transparent 68%);
  pointer-events:none;
}
.article-hero .grid-container{position:relative;z-index:1;}
.article-hero h1{
  font-size:36px;font-weight:700;line-height:1.24;letter-spacing:-.02em;
  margin:20px 0 18px;max-width:22ch;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding-top:18px;border-top:1px solid var(--line);}
.cat-pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:var(--accent);
  background:rgba(255,138,61,.10);border:1px solid rgba(255,138,61,.36);
}
.data-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;color:var(--text-2);background:rgba(255,255,255,.04);
  border:1px solid var(--line);font-variant-numeric:tabular-nums;
}
.data-badge b{color:var(--cyan);font-weight:600;padding-left:4px;}
.meta-text{font-size:13.5px;color:var(--text-3);font-variant-numeric:tabular-nums;}

/* ---------- article layout ---------- */
.article-wrap{background:var(--band-a);border-bottom:1px solid var(--line);padding:72px 0 88px;}
.article-grid{display:flex;flex-wrap:wrap;gap:56px;}
.article-main{flex:1 1 620px;min-width:0;max-width:820px;}
.article-side{flex:0 0 320px;max-width:340px;}
.side-sticky{position:sticky;top:100px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 22px 20px;box-shadow:var(--shadow);
}
.side-card + .side-card{margin-top:22px;}
.side-title{font-size:13px;letter-spacing:.16em;color:var(--text-3);margin-bottom:14px;}
.toc-list li{border-bottom:1px solid var(--line);}
.toc-list li:last-child{border-bottom:0;}
.toc-list a{display:block;padding:11px 0;font-size:14.5px;color:var(--text-2);line-height:1.6;}
.toc-list a:hover{color:var(--cyan);}
.toc-list .toc-sub a{padding-left:16px;font-size:13.5px;color:var(--text-3);}
.side-rel li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);}
.side-rel li:last-child{border-bottom:0;}
.side-rel .thumb{flex:0 0 68px;width:68px;aspect-ratio:16/10;border-radius:12px;overflow:hidden;background:var(--surface-2);}
.side-rel .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.side-rel li:hover .thumb img{transform:scale(1.06);}
.side-rel h4{font-size:14.5px;font-weight:600;line-height:1.5;margin-bottom:4px;}
.side-rel span{font-size:12px;color:var(--text-3);}
.side-cta{margin-top:22px;padding:24px;border-radius:var(--radius);background:var(--grad-soft);border:1px solid var(--line);}
.side-cta h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.side-cta p{font-size:13.5px;color:var(--text-2);line-height:1.7;margin-bottom:16px;}

/* ---------- article body ---------- */
.article-body{font-size:17px;line-height:1.9;color:rgba(242,239,255,.82);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1em;}
.article-body h2{
  font-size:26px;font-weight:700;line-height:1.3;letter-spacing:-.01em;color:var(--text);
  margin:40px 0 16px;padding-left:16px;position:relative;scroll-margin-top:100px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:4px;border-radius:4px;background:var(--grad);}
.article-body h3{font-size:20px;font-weight:700;color:var(--text);margin:28px 0 12px;line-height:1.4;scroll-margin-top:100px;}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.article-body a:hover{font-weight:600;color:var(--cyan);}
.article-body ul{margin:0 0 1.2em;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:8px;}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--cyan);}
.article-body ol{counter-reset:art-ol;margin:0 0 1.2em;}
.article-body ol li{counter-increment:art-ol;position:relative;padding-left:34px;margin-bottom:10px;}
.article-body ol li::before{
  content:counter(art-ol,decimal-leading-zero);position:absolute;left:0;top:.18em;
  font-size:13px;color:var(--cyan);font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;border-left:3px solid;
  border-image:var(--grad) 1;background:rgba(255,255,255,.04);border-radius:0 14px 14px 0;
  color:var(--text-2);font-size:16px;line-height:1.85;
}
.article-body img{border-radius:16px;margin:26px 0 10px;box-shadow:var(--shadow);}
.article-body figcaption{font-size:13px;color:var(--text-3);margin-bottom:22px;}
.article-body strong{color:var(--text);font-weight:600;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{color:var(--text-2);font-weight:600;background:rgba(255,255,255,.03);}
.article-body code{background:rgba(255,255,255,.06);border-radius:6px;padding:2px 6px;font-size:14.5px;color:var(--cyan);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}
.article-empty{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:48px 32px;text-align:center;
}
.article-empty h2{font-size:22px;font-weight:700;margin-bottom:12px;}
.article-empty p{color:var(--text-2);font-size:15.5px;margin-bottom:22px;}

/* ---------- steps ---------- */
.step-list{margin-top:8px;}
.step-list li{
  display:flex;gap:26px;align-items:flex-start;padding:26px 0;border-bottom:1px solid var(--line);
  transition:background .3s var(--ease);
}
.step-list li:last-child{border-bottom:0;}
.step-list li:hover{background:rgba(255,255,255,.02);}
.step-num{flex:0 0 64px;font-size:22px;font-weight:700;color:var(--cyan);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.step-body h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.step-body h3 a{color:var(--text);}
.step-body h3 a:hover{color:var(--cyan);}
.step-body p{color:var(--text-2);font-size:15.5px;line-height:1.8;max-width:70ch;}

/* ---------- related ---------- */
.related-list{margin-top:8px;}
.rel-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;height:100%;transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,75,255,.5);}
.rel-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.06);}
.rel-body{padding:22px 22px 26px;}
.cat-tag{display:inline-block;font-size:12.5px;font-weight:600;color:var(--accent);margin-bottom:10px;letter-spacing:.02em;}
.rel-body h3{font-size:19px;font-weight:700;line-height:1.4;margin-bottom:10px;}
.rel-body p{font-size:14.5px;color:var(--text-2);line-height:1.75;}
.rel-time{display:block;margin-top:14px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.back-row{margin-top:44px;display:flex;justify-content:flex-start;}

/* ---------- footer ---------- */
.site-footer{margin-top:0;padding:72px 0 32px;background:var(--band-b);border-top:1px solid var(--line);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;color:var(--text-2);line-height:1.85;max-width:38ch;}
.footer-title{font-size:13px;letter-spacing:.16em;color:var(--text-3);font-weight:500;margin-bottom:18px;text-transform:none;}
.footer-links li{margin-bottom:12px;}
.footer-links a{font-size:14.5px;color:var(--text-2);}
.footer-links a:hover{color:var(--cyan);}
.footer-note li{font-size:14px;color:var(--text-3);line-height:1.8;margin-bottom:12px;}
.social-row{display:flex;gap:12px;margin-top:20px;}
.social-row a{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);
  transition:all .28s var(--ease);
}
.social-row a svg{width:18px;height:18px;}
.social-row a:hover{color:var(--cyan);border-color:rgba(61,224,216,.5);background:rgba(61,224,216,.08);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-hero h1{font-size:32px;}
  .article-side{flex:0 0 290px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:36px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .section{padding:64px 0;}
  .article-wrap{padding:52px 0 64px;}
  .article-grid{gap:40px;}
  .article-main{flex:1 1 100%;max-width:100%;}
  .article-side{flex:1 1 100%;max-width:100%;}
  .side-sticky{position:static;}
  .article-hero{padding:40px 0 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  body{padding-top:60px;}
  .main-nav{height:60px;gap:16px;}
  .brand-name{font-size:15px;}
  .brand-sub{display:none;}
  .nav-actions .btn-sm{display:none;}
  .section{padding:48px 0;}
  .section-head h2{font-size:23px;}
  .article-hero h1{font-size:27px;line-height:1.3;max-width:none;}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .step-list li{gap:16px;padding:20px 0;}
  .step-num{flex:0 0 44px;font-size:18px;}
  .search-row{flex-direction:column;}
  .search-row .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:52px 0 26px;}
  .breadcrumb .current{white-space:normal;max-width:none;}
}
@media (max-width:480px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .article-hero h1{font-size:24px;}
  .btn{height:46px;padding:0 22px;}
}

/* roulang page: category1 */
:root{
  --bg:#0B0718;
  --surface:#141026;
  --raise:#1D1738;
  --alt-a:#0F0A20;
  --alt-b:#120C24;
  --purple:#6C4BFF;
  --violet:#B44BFF;
  --cyan:#3DE0D8;
  --accent:#FF8A3D;
  --text:#F2EFFF;
  --text-2:rgba(242,239,255,.72);
  --text-3:rgba(242,239,255,.5);
  --line:rgba(255,255,255,.10);
  --radius:20px;
  --radius-lg:28px;
  --radius-img:16px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 20px 48px rgba(108,75,255,.40);
  --grad:linear-gradient(120deg,#6C4BFF 0%,#B44BFF 100%);
  --ease:cubic-bezier(.2,.7,.2,1);
  --gutter:28px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease),border-color .25s var(--ease),background-color .25s var(--ease)}
button{font-family:inherit}
:focus{outline:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}

.grid-container{max-width:1240px;margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter);width:100%}
.grid-padding-x{margin-left:-14px;margin-right:-14px}
.grid-padding-x>.cell{padding-left:14px;padding-right:14px}
.grid-x{display:flex;flex-flow:row wrap}

.section{padding:96px 0}
.section-alt{background:var(--alt-a);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-raise{background:var(--alt-b);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:32px;max-width:820px}
.section-head h2{
  position:relative;
  padding-left:16px;
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.3;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--grad);
}
.section-head p{margin-top:12px;color:var(--text-2);font-size:16px;line-height:1.8}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head-row .section-head{margin-bottom:0}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--text-2);white-space:nowrap}
.link-more svg{width:16px;height:16px;transition:transform .3s var(--ease)}
.link-more:hover{color:var(--cyan)}
.link-more:hover svg{transform:translateX(4px)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),background-color .25s var(--ease),border-color .25s var(--ease),filter .25s var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(108,75,255,.32)}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 16px 36px rgba(108,75,255,.48);transform:translateY(-2px);color:#fff}
.btn-primary:active{transform:translateY(0);filter:brightness(.94)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(61,224,216,.08);color:var(--text);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:25px;padding:0 11px;border-radius:999px;
  background:rgba(11,7,24,.72);border:1px solid var(--line);
  color:var(--cyan);font-size:12.5px;line-height:1;white-space:nowrap;font-variant-numeric:tabular-nums;
}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:8px;
  background:rgba(255,138,61,.14);border:1px solid rgba(255,138,61,.42);
  color:var(--accent);font-size:12.5px;line-height:1;white-space:nowrap;
}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,7,24,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line)}
.site-header .grid-container{position:relative}
.main-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text)}
.brand-mark{
  width:36px;height:36px;display:grid;place-items:center;flex:0 0 auto;
  border-radius:12px;background:rgba(108,75,255,.16);border:1px solid rgba(180,75,255,.38);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column}
.brand-name{font-size:16px;font-weight:700;letter-spacing:-.01em;line-height:1.25}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.06em;line-height:1.4}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{display:inline-flex;align-items:center;font-size:15px;font-weight:500;color:var(--text-2)}
.nav-links a:hover{color:var(--text)}
.nav-links a.is-active{color:var(--text)}
.nav-links a.is-active::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);
  margin-right:8px;box-shadow:0 0 10px rgba(61,224,216,.85);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);background:transparent;color:var(--text-2);cursor:pointer;
  transition:color .25s var(--ease),border-color .25s var(--ease),background-color .25s var(--ease);
}
.icon-btn:hover{color:var(--cyan);border-color:rgba(61,224,216,.5);background:rgba(61,224,216,.06)}
.icon-btn svg{width:19px;height:19px}
.menu-toggle{display:none;flex-direction:column;gap:4px}
.menu-toggle .bar{display:block;width:18px;height:1.5px;background:currentColor;border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease)}
.menu-toggle[aria-expanded="true"] .bar:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] .bar:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] .bar:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

.search-panel{
  position:absolute;right:var(--gutter);top:calc(100% + 10px);width:330px;max-width:calc(100% - 32px);
  background:var(--raise);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:0 24px 60px rgba(0,0,0,.55);
  display:none;
}
.search-panel.is-open{display:block}
.search-panel label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px}
.field{display:flex;gap:10px}
.field input{
  flex:1 1 auto;height:48px;padding:0 14px;border-radius:12px;
  background:#120E24;border:1px solid var(--line);color:var(--text);font-size:15px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.field input::placeholder{color:var(--text-3)}
.field input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(61,224,216,.18);outline:none}
.form-feedback{margin-top:10px;min-height:20px;font-size:13px;color:var(--cyan)}
.form-feedback.is-error{color:var(--accent)}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(5,3,12,.62);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .32s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:86%;max-width:360px;z-index:80;
  background:#120C24;border-left:1px solid var(--line);
  transform:translateX(101%);transition:transform .38s var(--ease);
  display:flex;flex-direction:column;padding:22px 24px 32px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-head span{font-size:13px;color:var(--text-3);letter-spacing:.08em}
.drawer-links{margin-top:8px}
.drawer-links li{border-bottom:1px solid var(--line)}
.drawer-links a{display:flex;align-items:center;height:56px;font-size:22px;font-weight:600;color:var(--text)}
.drawer-links a.is-active{color:var(--cyan)}
.drawer-cta{margin-top:28px}
.drawer-note{margin-top:16px;font-size:13px;color:var(--text-3);line-height:1.7}

/* Hero 海报条 */
.hero-strip{padding-top:36px}
.hero-poster{
  position:relative;height:320px;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.hero-poster img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-poster::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,7,24,.95) 0%,rgba(11,7,24,.68) 46%,rgba(11,7,24,.30) 100%);
}
.hero-poster-inner{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:40px clamp(24px,4vw,48px);
  max-width:900px;
}
.hero-poster-inner h1{
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.22;
  letter-spacing:-.02em;
  margin-top:14px;
}
.hero-poster-inner p{margin-top:14px;color:var(--text-2);font-size:16px;max-width:640px}

/* 左筛选栏 + 右列表 */
.side-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;position:sticky;top:96px;
}
.side-panel h2{font-size:19px;margin-bottom:10px}
.side-panel .side-lead{color:var(--text-2);font-size:14.5px;line-height:1.8}
.side-points{margin-top:22px;border-top:1px solid var(--line);padding-top:18px}
.side-points li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.75;padding:7px 0}
.side-points li strong{color:var(--text);font-weight:600}
.side-points li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--cyan);
  margin-top:11px;
}
.filter-block{margin-top:24px;border-top:1px solid var(--line);padding-top:20px}
.filter-block h3{font-size:15px;margin-bottom:12px}
.filter-chips{display:flex;flex-wrap:wrap;gap:10px}
.filter-chip{
  height:34px;padding:0 14px;border-radius:999px;background:transparent;
  border:1px solid var(--line);color:var(--text-2);font-size:13.5px;cursor:pointer;
  transition:color .25s var(--ease),border-color .25s var(--ease),background-color .25s var(--ease);
}
.filter-chip:hover{color:var(--text);border-color:rgba(61,224,216,.5)}
.filter-chip.is-active{
  color:#fff;background:var(--grad);border-color:transparent;
}

.list-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:8px;flex-wrap:wrap}
.list-head h2{font-size:clamp(20px,2.2vw,26px)}
.list-head span{font-size:13.5px;color:var(--text-3)}
.schedule-list>li{
  display:flex;align-items:center;gap:20px;
  padding:22px 18px;border-bottom:1px solid var(--line);
  border-radius:12px;
  transition:background-color .3s var(--ease);
}
.schedule-list>li:first-child{border-top:1px solid var(--line)}
.schedule-list>li:hover{background:rgba(108,75,255,.08)}
.schedule-list>li:hover .schedule-body h3{color:var(--cyan)}
.schedule-item.is-hidden{display:none}
.schedule-time{flex:0 0 92px;text-align:left}
.schedule-time .t-main{display:block;font-size:20px;font-weight:700;color:var(--text);line-height:1.2}
.schedule-time .t-sub{display:block;font-size:12.5px;color:var(--text-3);margin-top:4px}
.schedule-body{flex:1 1 auto;min-width:0}
.schedule-body h3{font-size:18px;line-height:1.45;transition:color .3s var(--ease)}
.schedule-body p{margin-top:6px;font-size:14.5px;color:var(--text-2);line-height:1.7;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.schedule-body .tag{margin-bottom:8px}
.schedule-action{flex:0 0 auto}
.list-empty{
  padding:32px 18px;color:var(--text-3);font-size:14.5px;
  display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);
}
.list-empty svg{width:28px;height:28px;flex:0 0 auto;stroke:var(--text-3)}

/* 数据徽章行 */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.stat-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,75,255,.45)}
.stat-num{display:block;font-size:38px;font-weight:700;line-height:1.1;color:var(--cyan)}
.stat-label{display:block;margin-top:8px;font-size:15px;color:var(--text)}
.stat-desc{display:block;margin-top:10px;font-size:13.5px;color:var(--text-3);line-height:1.7}

/* 横滑卡带 */
.rail{
  display:flex;gap:20px;overflow-x:auto;padding-bottom:12px;
  scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:rgba(108,75,255,.5) transparent;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:rgba(108,75,255,.5);border-radius:999px}
.rail-card{flex:0 0 250px;scroll-snap-align:start}
.rail-card a{display:block;border-radius:var(--radius-img);overflow:hidden;position:relative}
.ratio-3-4{position:relative;padding-top:133.33%;background:var(--raise);border-radius:var(--radius-img);overflow:hidden}
.ratio-3-4 img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.rail-card a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:58%;
  background:linear-gradient(to top,rgba(9,5,20,.94),rgba(9,5,20,0));
  pointer-events:none;border-radius:var(--radius-img);
}
.rail-card:hover img{transform:scale(1.06)}
.rail-card .rail-badge{position:absolute;top:12px;right:12px;z-index:2}
.rail-card .rail-title{
  position:absolute;left:14px;right:14px;bottom:14px;z-index:2;
  font-size:16px;font-weight:600;line-height:1.45;color:#fff;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.rail-card .rail-meta{position:absolute;left:14px;bottom:60px;z-index:2;font-size:12.5px;color:rgba(255,255,255,.72)}

/* 留白引导段落 */
.notes-block{max-width:820px}
.notes-block>p{color:var(--text-2);font-size:16.5px;line-height:1.9}
.notes-list{margin-top:36px;border-top:1px solid var(--line)}
.notes-list li{
  display:flex;gap:22px;padding:24px 0;border-bottom:1px solid var(--line);
}
.notes-list .num{
  flex:0 0 56px;font-size:15px;color:var(--cyan);font-weight:700;letter-spacing:.04em;padding-top:2px;
}
.notes-list h3{font-size:17px;margin-bottom:6px}
.notes-list p{font-size:15px;color:var(--text-2);line-height:1.8}

/* CTA 细边条 */
.cta-outline{
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:linear-gradient(120deg,rgba(108,75,255,.12),rgba(61,224,216,.07));
  box-shadow:var(--shadow);
}
.cta-outline h2{font-size:clamp(21px,2.3vw,28px);line-height:1.35}
.cta-outline p{margin-top:10px;color:var(--text-2);font-size:15.5px;max-width:560px}
.cta-outline .cta-action{flex:0 0 auto}

/* 页脚 */
.site-footer{background:var(--alt-a);border-top:1px solid var(--line);padding-top:72px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand p{margin-top:18px;font-size:14.5px;color:var(--text-2);line-height:1.8;max-width:340px}
.footer-title{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14.5px;color:var(--text-2)}
.footer-links a:hover{color:var(--cyan)}
.footer-note{font-size:14px;color:var(--text-2);line-height:1.8}
.footer-note li{margin-bottom:10px;display:flex;gap:8px}
.footer-note li::before{content:"";flex:0 0 auto;width:5px;height:5px;border-radius:50%;background:var(--cyan);margin-top:11px}
.social-row{display:flex;gap:12px;margin-top:22px}
.social-row a{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);color:var(--text-2);
}
.social-row a:hover{color:var(--cyan);border-color:rgba(61,224,216,.5);background:rgba(61,224,216,.06)}
.social-row svg{width:18px;height:18px}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);
  padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);
}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* 响应式 */
@media (max-width:1199px){
  .section{padding:80px 0}
  .rail-card{flex:0 0 230px}
}
@media (max-width:991px){
  :root{--gutter:20px}
  .nav-links{display:none}
  .nav-actions .btn{display:none}
  .menu-toggle{display:inline-flex}
  .section{padding:64px 0}
  .hero-poster{height:280px}
  .side-panel{position:static;margin-bottom:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .cta-outline{flex-direction:column;align-items:flex-start;padding:36px}
  .rail-card{flex:0 0 74vw;max-width:280px}
}
@media (max-width:767px){
  :root{--gutter:16px}
  .section{padding:48px 0}
  .hero-strip{padding-top:20px}
  .hero-poster{height:240px;border-radius:22px}
  .hero-poster-inner{padding:24px 20px}
  .hero-poster-inner h1{font-size:28px}
  .hero-poster-inner p{font-size:15px}
  .schedule-list>li{flex-wrap:wrap;gap:12px;padding:18px 14px}
  .schedule-time{flex:0 0 auto;display:flex;align-items:baseline;gap:8px}
  .schedule-time .t-main{font-size:17px}
  .schedule-time .t-sub{margin-top:0}
  .schedule-body{flex:1 1 100%}
  .schedule-action{flex:1 1 100%}
  .schedule-action .btn{width:100%}
  .stat-row{grid-template-columns:1fr 1fr;gap:14px}
  .stat-item{padding:20px 18px}
  .stat-num{font-size:30px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:52px;margin-top:64px}
  .search-panel{right:16px}
}
@media (max-width:480px){
  .stat-row{grid-template-columns:1fr}
  .brand-sub{display:none}
  .brand-name{font-size:15px}
  .notes-list li{gap:14px}
  .notes-list .num{flex:0 0 42px}
  .cta-outline{padding:28px 22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --bg:#0B0718;
  --bg-1:#0F0A20;
  --bg-2:#120C24;
  --surface:#141026;
  --surface-2:#1D1738;
  --violet:#6C4BFF;
  --violet-2:#B44BFF;
  --cyan:#3DE0D8;
  --amber:#FF8A3D;
  --text:#F2EFFF;
  --text-2:rgba(242,239,255,.72);
  --text-3:rgba(242,239,255,.5);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --r-sm:12px;
  --r-md:16px;
  --r:20px;
  --r-lg:28px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 20px 48px rgba(108,75,255,.40);
  --ease:cubic-bezier(.2,.7,.2,1);
  --grad:linear-gradient(120deg,#6C4BFF 0%,#B44BFF 100%);
  --grad-cta:linear-gradient(120deg,#6C4BFF 0%,#3DE0D8 100%);
}
*,*::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:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .35s var(--ease),border-color .35s var(--ease)}
a:hover{color:var(--cyan)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.grid-container{
  width:100%;
  max-width:1240px;
  margin-left:auto;
  margin-right:auto;
  padding-left:28px;
  padding-right:28px;
}
.grid-x{margin-left:-14px;margin-right:-14px}
.grid-x > .cell{padding-left:14px;padding-right:14px}
::selection{background:rgba(108,75,255,.45);color:#fff}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),background-color .35s var(--ease),border-color .35s var(--ease),color .35s var(--ease),filter .35s var(--ease);
}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 10px 30px rgba(108,75,255,.32);
}
.btn-primary:hover{
  color:#fff;
  filter:brightness(1.08);
  box-shadow:0 14px 34px rgba(108,75,255,.5);
  transform:translateY(-2px);
}
.btn-primary:active{transform:translateY(0);filter:brightness(.94)}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--cyan);
  background:rgba(61,224,216,.08);
  color:var(--text);
}
.btn-sm{height:38px;padding:0 20px;font-size:14px}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  background:none;
  border:0;
  padding:0;
  cursor:pointer;
}
.btn-link:hover{color:var(--cyan)}
.btn-link .arrow{transition:transform .35s var(--ease)}
.btn-link:hover .arrow{transform:translateX(4px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:12px;
  line-height:1;
  color:var(--text-3);
  white-space:nowrap;
}
.badge b{
  color:var(--cyan);
  font-weight:600;
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  line-height:1;
  color:var(--amber);
  background:rgba(255,138,61,.10);
  border:1px solid rgba(255,138,61,.35);
  white-space:nowrap;
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(11,7,24,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .35s var(--ease),background-color .35s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line)}
.main-nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{display:inline-flex;width:32px;height:32px;flex:0 0 32px}
.brand-mark svg{width:100%;height:100%}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:16px;font-weight:700;letter-spacing:-.01em}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links li a{
  position:relative;
  display:inline-block;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
}
.nav-links li a:hover{color:var(--text)}
.nav-links li a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--grad);
  transform:translateX(-50%);
  transition:width .35s var(--ease);
}
.nav-links li a:hover::after{width:14px}
.nav-links li a.is-active{color:var(--text)}
.nav-links li a.is-active::after{width:20px}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  padding:0;
  border-radius:999px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-2);
  cursor:pointer;
  transition:color .35s var(--ease),border-color .35s var(--ease),background-color .35s var(--ease);
}
.icon-btn:hover{color:var(--cyan);border-color:rgba(61,224,216,.5);background:rgba(61,224,216,.06)}
.icon-btn svg{width:19px;height:19px}
.menu-toggle{display:none;flex-direction:column;justify-content:center;gap:4px}
.menu-toggle .bar{display:block;width:18px;height:1.5px;background:currentColor;border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease)}
.menu-toggle[aria-expanded="true"] .bar:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] .bar:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] .bar:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* 搜索面板 */
.search-panel{
  position:fixed;
  top:80px;
  right:calc((100% - 1240px) / 2 + 28px);
  width:360px;
  z-index:99;
  padding:20px;
  border-radius:var(--r);
  border:1px solid var(--line);
  background:var(--surface-2);
  box-shadow:0 24px 60px rgba(0,0,0,.6);
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease);
}
.search-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.search-panel label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px}
.search-panel input{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:#120E24;
  color:var(--text);
  font-size:15px;
  font-family:inherit;
}
.search-panel input::placeholder{color:var(--text-3)}
.search-panel input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(61,224,216,.18)}
.search-panel .hint{margin-top:10px;font-size:12px;color:var(--text-3)}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:120;
  display:flex;
  flex-direction:column;
  padding:88px 28px 32px;
  background:var(--bg);
  transform:translateX(100%);
  visibility:hidden;
  transition:transform .4s var(--ease),visibility .4s var(--ease);
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible}
.mobile-drawer ul{border-top:1px solid var(--line)}
.mobile-drawer ul li{border-bottom:1px solid var(--line)}
.mobile-drawer ul li a{
  display:flex;
  align-items:center;
  height:56px;
  font-size:22px;
  font-weight:600;
  color:var(--text-2);
}
.mobile-drawer ul li a:hover,
.mobile-drawer ul li a.is-active{color:var(--text)}
.mobile-drawer .drawer-foot{margin-top:auto;padding-top:28px}
.mobile-drawer .drawer-foot .btn{width:100%}
body.drawer-open{overflow:hidden}

/* ---------- 面包屑 ---------- */
.crumb{
  padding:22px 0 0;
  font-size:14px;
  color:var(--text-3);
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{color:rgba(242,239,255,.28)}
.crumb .current{color:var(--text-2)}

/* ---------- 首屏（纯渐变星轨） ---------- */
.hero-zone{
  position:relative;
  overflow:hidden;
  padding:96px 0 88px;
  background:
    radial-gradient(1100px 560px at 16% -14%, rgba(108,75,255,.38), transparent 62%),
    radial-gradient(880px 480px at 86% -6%, rgba(180,75,255,.26), transparent 58%),
    linear-gradient(180deg,#0B0718 0%,#120C24 66%,#0B0718 100%);
}
.hero-zone::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.75;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 22%, rgba(255,255,255,.55), transparent 100%),
    radial-gradient(1.4px 1.4px at 28% 68%, rgba(255,255,255,.4), transparent 100%),
    radial-gradient(1.8px 1.8px at 47% 16%, rgba(180,75,255,.7), transparent 100%),
    radial-gradient(1.4px 1.4px at 63% 74%, rgba(255,255,255,.35), transparent 100%),
    radial-gradient(1.6px 1.6px at 78% 34%, rgba(61,224,216,.6), transparent 100%),
    radial-gradient(1.3px 1.3px at 91% 62%, rgba(255,255,255,.45), transparent 100%),
    radial-gradient(1.2px 1.2px at 36% 40%, rgba(255,255,255,.3), transparent 100%);
}
.hero-orbit{
  position:absolute;
  width:920px;
  height:920px;
  right:-360px;
  top:-420px;
  border:1px solid rgba(255,255,255,.08);
  border-radius:50%;
  pointer-events:none;
}
.hero-orbit::after{
  content:"";
  position:absolute;
  inset:100px;
  border:1px solid rgba(180,75,255,.18);
  border-radius:50%;
}
.hero-zone .grid-container{position:relative;z-index:2}
.hero-zone h1{
  font-size:44px;
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.02em;
  max-width:840px;
  margin-top:22px;
}
.hero-zone h1 .hl{
  background:linear-gradient(120deg,#B44BFF 0%,#3DE0D8 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  margin-top:20px;
  max-width:660px;
  font-size:17px;
  line-height:1.85;
  color:var(--text-2);
}
.hero-actions{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.hero-badges{
  margin-top:46px;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.hero-note{margin-top:18px;font-size:12.5px;color:var(--text-3)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-1)}
.section-tight{padding:88px 0}
.section-head{margin-bottom:32px;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.section-title{
  position:relative;
  padding-left:16px;
  font-size:30px;
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.01em;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:4px;
  height:26px;
  border-radius:4px;
  background:var(--grad);
}
.section-sub{margin-top:12px;font-size:16px;color:var(--text-2);max-width:680px;line-height:1.8}

/* ---------- 交替图文行 ---------- */
.feature-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
  padding:44px 0;
  border-bottom:1px solid var(--line);
}
.feature-row:last-child{border-bottom:0}
.feature-row .feature-media{order:1}
.feature-row .feature-copy{order:2}
.feature-row.is-reverse .feature-media{order:2}
.feature-row.is-reverse .feature-copy{order:1}
.media{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-md);
  background:var(--surface-2);
  border:1px solid var(--line);
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.media-16x9{aspect-ratio:16 / 9}
.media-4x3{aspect-ratio:4 / 3}
.media:hover img{transform:scale(1.05)}
.media::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:42%;
  background:linear-gradient(180deg,rgba(11,7,24,0) 0%,rgba(11,7,24,.72) 100%);
  pointer-events:none;
}
.media .media-tag{position:absolute;left:16px;bottom:16px;z-index:2}
.feature-copy h3{font-size:20px;font-weight:700;line-height:1.35;margin-bottom:14px}
.feature-copy p{font-size:16.5px;line-height:1.9;color:var(--text-2)}
.feature-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.feature-copy .btn-link{margin-top:22px}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.step{
  position:relative;
  padding:30px 24px 28px;
  border-radius:var(--r);
  border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.step::before{
  content:"";
  position:absolute;
  left:24px;
  right:24px;
  top:0;
  height:2px;
  border-radius:2px;
  background:var(--grad);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,75,255,.45)}
.step-num{
  font-size:13px;
  font-weight:600;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
  letter-spacing:.12em;
}
.step h3{margin-top:14px;font-size:18px;font-weight:600;line-height:1.4}
.step p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- 留白段落区 ---------- */
.quiet{
  padding:104px 0;
  background:var(--bg-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.quiet-inner{max-width:820px}
.quiet h2{font-size:32px;font-weight:700;line-height:1.28;letter-spacing:-.01em}
.quiet p{margin-top:22px;font-size:17px;line-height:1.9;color:var(--text-2)}
.quiet hr{
  margin:34px 0;
  border:0;
  border-top:1px solid var(--line);
}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:24px 4px;
  background:none;
  border:0;
  color:var(--text);
  font-size:17px;
  font-weight:500;
  text-align:left;
  cursor:pointer;
  transition:color .35s var(--ease);
}
.faq-q:hover{color:var(--cyan)}
.faq-icon{
  position:relative;
  flex:0 0 18px;
  width:18px;
  height:18px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--text-2);
  border-radius:2px;
  transition:transform .35s var(--ease),background-color .35s var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:1.5px}
.faq-icon::after{left:8px;top:0;width:1.5px;height:18px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-item.is-open .faq-icon::before{background:var(--cyan)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s var(--ease);
}
.faq-a p{
  padding:0 4px 24px;
  margin:0;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  max-width:760px;
}

/* ---------- 订阅表单 ---------- */
.subscribe{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
  padding:56px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow);
}
.subscribe h2{font-size:28px;font-weight:700;line-height:1.3}
.subscribe .sub-copy{margin-top:16px;font-size:16px;line-height:1.85;color:var(--text-2)}
.form-field{margin-bottom:18px}
.form-field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px}
.form-field input{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:#120E24;
  color:var(--text);
  font-size:15px;
  font-family:inherit;
  transition:border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.form-field input::placeholder{color:var(--text-3)}
.form-field input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(61,224,216,.18)}
.form-field.has-error input{border-color:var(--amber);box-shadow:0 0 0 3px rgba(255,138,61,.16)}
.form-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.form-feedback{margin-top:14px;font-size:14px;color:var(--text-3);min-height:22px}
.form-feedback.is-error{color:var(--amber)}
.form-feedback.is-ok{color:var(--cyan)}

/* ---------- CTA 渐变条 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:36px;
  align-items:center;
  padding:48px;
  border-radius:var(--r-lg);
  background:var(--grad-cta);
  box-shadow:0 24px 60px rgba(108,75,255,.28);
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.5;
  background-image:
    radial-gradient(1.5px 1.5px at 18% 30%, rgba(255,255,255,.9), transparent 100%),
    radial-gradient(1.2px 1.2px at 46% 72%, rgba(255,255,255,.7), transparent 100%),
    radial-gradient(1.6px 1.6px at 72% 22%, rgba(255,255,255,.8), transparent 100%),
    radial-gradient(1.2px 1.2px at 88% 64%, rgba(255,255,255,.6), transparent 100%);
}
.cta-band .cta-copy{position:relative;z-index:2}
.cta-band h2{font-size:30px;font-weight:700;color:#0B0718;line-height:1.28}
.cta-band p{margin-top:12px;font-size:16px;color:rgba(11,7,24,.76);line-height:1.8;max-width:620px}
.cta-band .cta-action{position:relative;z-index:2}
.cta-band .btn-primary{
  background:#0B0718;
  color:var(--text);
  box-shadow:0 12px 30px rgba(11,7,24,.35);
}
.cta-band .btn-primary:hover{color:#fff;filter:brightness(1.1);box-shadow:0 16px 38px rgba(11,7,24,.5)}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-1);
  padding-top:72px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:44px;
}
.footer-brand .brand{margin-bottom:20px}
.footer-brand p{font-size:14.5px;line-height:1.85;color:var(--text-2);max-width:360px}
.social-row{display:flex;gap:12px;margin-top:22px}
.social-row a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--text-2);
}
.social-row a:hover{color:var(--cyan);border-color:rgba(61,224,216,.5);background:rgba(61,224,216,.06)}
.social-row svg{width:18px;height:18px}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  letter-spacing:.02em;
  margin-bottom:18px;
}
.footer-links li a{
  display:inline-block;
  padding:6px 0;
  font-size:14px;
  color:var(--text-2);
}
.footer-links li a:hover{color:var(--cyan)}
.footer-note p{font-size:14px;line-height:1.85;color:var(--text-2)}
.footer-note .footer-links{margin-top:12px}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid var(--line);
  padding:24px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-in{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .search-panel{right:20px}
}
@media screen and (max-width:1023px){
  .grid-container{padding-left:20px;padding-right:20px}
  .search-panel{right:20px;width:320px}
  .nav-links{gap:24px}
  .section,.section-tight{padding:64px 0}
  .quiet{padding:72px 0}
  .hero-zone{padding:72px 0 64px}
  .hero-zone h1{font-size:38px}
  .hero-orbit{width:700px;height:700px;right:-300px;top:-320px}
  .feature-row{gap:36px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .subscribe{padding:40px;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-band{padding:40px}
  .cta-band h2{font-size:26px}
}
@media screen and (max-width:900px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
}
@media screen and (max-width:767px){
  body{font-size:16px}
  .grid-container{padding-left:16px;padding-right:16px}
  .main-nav{height:60px}
  .brand-sub{display:none}
  .brand-name{font-size:15px}
  .nav-actions .btn-primary{display:none}
  .search-panel{top:68px;left:16px;right:16px;width:auto}
  .search-panel{position:fixed}
  .section,.section-tight{padding:48px 0}
  .quiet{padding:56px 0}
  .hero-zone{padding:56px 0 52px}
  .hero-zone h1{font-size:31px;margin-top:18px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-badges{gap:8px;margin-top:34px;padding-top:20px}
  .section-head{margin-bottom:24px}
  .section-title{font-size:24px;padding-left:14px}
  .section-title::before{height:20px}
  .section-sub{font-size:15px}
  .feature-row{grid-template-columns:minmax(0,1fr);gap:22px;padding:32px 0}
  .feature-row .feature-media,
  .feature-row.is-reverse .feature-media{order:1}
  .feature-row .feature-copy,
  .feature-row.is-reverse .feature-copy{order:2}
  .feature-copy h3{font-size:18px}
  .feature-copy p{font-size:16px}
  .steps{grid-template-columns:minmax(0,1fr)}
  .quiet h2{font-size:24px}
  .quiet p{font-size:16px}
  .faq-q{font-size:16px;padding:20px 2px;gap:16px}
  .subscribe{grid-template-columns:minmax(0,1fr);padding:28px;gap:26px}
  .subscribe h2{font-size:23px}
  .form-row .btn{width:100%}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:28px;gap:22px}
  .cta-band h2{font-size:22px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;margin-top:36px}
  .site-footer{padding-top:52px}
}
@media screen and (max-width:480px){
  .hero-zone h1{font-size:28px}
  .badge{font-size:11.5px;padding:0 10px}
  .quiet h2{font-size:22px}
  .cta-band h2{font-size:20px}
}