/* roulang page: index */
:root{
  --primary:#F25C2A;
  --primary-strong:#C9451C;
  --secondary:#0E9F8A;
  --accent:#F2C14E;
  --paper:#F7F4EF;
  --surface:#FFFFFF;
  --obsidian:#0C0D10;
  --ink:#141518;
  --sub:#5B5F66;
  --line:rgba(20,21,24,.08);
  --radius-card:20px;
  --radius-cover:16px;
  --shadow-card:0 12px 32px rgba(12,13,16,.10);
  --shadow-hover:0 22px 48px rgba(12,13,16,.16);
  --font-display:"Songti SC","STSong","SimSun",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{font-family:var(--font-display);letter-spacing:-0.03em;margin:0;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.shell{width:100%;max-width:1440px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.shell{padding-left:32px;padding-right:32px}}
@media(min-width:1280px){.shell{padding-left:48px;padding-right:48px}}

.section{padding-top:64px;padding-bottom:64px}
@media(min-width:768px){.section{padding-top:88px;padding-bottom:88px}}
@media(min-width:1280px){.section{padding-top:112px;padding-bottom:112px}}

.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,239,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-link{position:relative;display:inline-flex;align-items:center;padding:10px 2px;font-size:15px;font-weight:600;color:#3B3F45;transition:color .2s ease}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .28s cubic-bezier(.22,.61,.36,1);
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink)}
.nav-link.is-active::after{transform:scaleX(1)}

.mega-panel{
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}

.logo-mark{color:var(--primary);flex:0 0 auto}
.logo-mark svg{width:34px;height:34px;display:block}
.brand-name{font-family:var(--font-display);font-weight:900;letter-spacing:-0.02em;font-size:20px;line-height:1}

.burger{display:inline-flex;flex-direction:column;gap:5px;padding:10px;border-radius:12px;border:1px solid var(--line);background:#fff}
.burger span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px}
.mobile-drawer{max-height:0;overflow:hidden;transition:max-height .38s cubic-bezier(.22,.61,.36,1)}
.nav-toggle:checked ~ .mobile-drawer{max-height:640px}
@media(min-width:1024px){.burger,.mobile-drawer{display:none}}

.hero{position:relative;overflow:hidden;background:var(--obsidian);min-height:68vh;display:flex;align-items:flex-end}
@media(min-width:1024px){.hero{min-height:78vh}}
.hero-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  animation:slowZoom 20s ease-in-out infinite alternate;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(12,13,16,.92) 0%,rgba(12,13,16,.72) 45%,rgba(12,13,16,.32) 100%),
             linear-gradient(180deg,rgba(12,13,16,.25) 0%,rgba(12,13,16,.55) 62%,rgba(12,13,16,.95) 100%);
}
@keyframes slowZoom{from{transform:scale(1.04)}to{transform:scale(1.13)}}

.reveal{animation:fadeUp .85s cubic-bezier(.22,.61,.36,1) both}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

.display-title{font-size:clamp(2.1rem,5.4vw,4.2rem);line-height:1.08;font-weight:900}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:600;font-size:15px;padding:14px 28px;transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 26px rgba(242,92,42,.28)}
.btn-primary:hover{background:var(--primary-strong);transform:translateY(-2px);box-shadow:0 16px 34px rgba(242,92,42,.34)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid rgba(20,21,24,.22)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(242,92,42,.08);color:var(--primary-strong);transform:translateY(-2px)}
.btn-light{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.28)}
.btn-light:hover{background:rgba(255,255,255,.18);transform:translateY(-2px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--ink);transition:color .2s ease}
.link-arrow svg{transition:transform .25s cubic-bezier(.22,.61,.36,1)}
.link-arrow:hover{color:var(--primary)}
.link-arrow:hover svg{transform:translateX(4px)}

.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.6}
.chip-teal{background:rgba(14,159,138,.12);color:#0B7C6B}
.chip-yellow{background:rgba(242,193,78,.22);color:#8A6408}
.chip-ink{background:rgba(20,21,24,.07);color:#3B3F45}
.chip-primary{background:var(--primary);color:#fff}
.chip-glass{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.22)}

.filter-chip{padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;border:1px solid var(--line);background:#fff;color:var(--sub);transition:all .2s ease}
.filter-chip:hover{border-color:var(--primary);color:var(--primary)}
.filter-chip.is-on{background:var(--primary);border-color:var(--primary);color:#fff}

.card-hover{transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s ease,border-color .3s ease}
.card-hover:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.card-hover:hover .card-title{color:var(--primary)}
.card-cover{transition:transform .55s cubic-bezier(.22,.61,.36,1)}

.snap-row{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:14px;
  scrollbar-width:thin;scrollbar-color:var(--primary) transparent}
.snap-row::-webkit-scrollbar{height:6px}
.snap-row::-webkit-scrollbar-track{background:transparent}
.snap-row::-webkit-scrollbar-thumb{background:var(--primary);border-radius:999px}
.snap-card{flex:0 0 252px;scroll-snap-align:start}
@media(max-width:640px){.snap-card{flex:0 0 76vw}}

.poster-wrap{position:relative;border-radius:var(--radius-cover);overflow:hidden;background:linear-gradient(140deg,#20222A,#0C0D10)}
.poster-wrap img{width:100%;height:100%;object-fit:cover}
.poster-wrap::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,13,16,0) 40%,rgba(12,13,16,.78) 100%)}
.play-dot{
  position:absolute;right:12px;bottom:12px;z-index:2;width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;
  opacity:0;transform:translateY(6px);transition:opacity .25s ease,transform .25s ease;
}
.card-hover:hover .play-dot{opacity:1;transform:translateY(0)}

.rank-row{display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:center;padding:24px 16px;border-bottom:1px solid var(--line);border-radius:14px;transition:background-color .25s ease}
.rank-row:hover{background:rgba(242,92,42,.07)}
.rank-row:hover .rank-arrow{transform:translateX(6px);color:var(--primary)}
.rank-num{font-family:var(--font-display);font-size:34px;font-weight:900;color:rgba(20,21,24,.16);letter-spacing:-0.04em}
.rank-row:hover .rank-num{color:var(--primary)}
.rank-arrow{transition:transform .25s ease,color .25s ease}

.faq-item{border-top:1px solid var(--line);transition:background-color .25s ease}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 12px;font-weight:700;font-size:17px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item[open]{background:rgba(242,92,42,.06)}
.faq-item .plus{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid rgba(20,21,24,.2);display:flex;align-items:center;justify-content:center;transition:transform .28s ease,background-color .28s ease,color .28s ease,border-color .28s ease}
.faq-item[open] .plus{transform:rotate(45deg);background:var(--primary);border-color:var(--primary);color:#fff}
.faq-body{padding:0 12px 24px;color:var(--sub);font-size:15px;line-height:1.85;max-width:820px}

.field{width:100%;height:50px;border-radius:12px;border:1px solid var(--line);background:#fff;padding:0 16px;transition:border-color .2s ease,box-shadow .2s ease}
.field::placeholder{color:#9AA0A8}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(242,92,42,.14)}

.footer-link{color:rgba(247,244,239,.72);font-size:14.5px;line-height:2.1;transition:color .2s ease}
.footer-link:hover{color:var(--primary)}

.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-card)}
.avatar-dot{width:34px;height:34px;border-radius:50%;border:2px solid var(--paper);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff}

.grain::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.08;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:14px 14px;
}

@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: article */
:root{
  --ink:#141518;
  --sub:#5B5F66;
  --warm:#F7F4EF;
  --surface:#FFFFFF;
  --obsidian:#0C0D10;
  --primary:#F25C2A;
  --primary-strong:#D8481A;
  --secondary:#0E9F8A;
  --accent:#F2C14E;
  --line:rgba(20,21,24,.08);
  --line-strong:rgba(20,21,24,.16);
  --radius:20px;
  --radius-sm:16px;
  --shadow:0 12px 32px rgba(12,13,16,.10);
  --shadow-lg:0 22px 52px rgba(12,13,16,.18);
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  --font-serif:"Songti SC","STSong","SimSun",serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--warm);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.03em;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(242,92,42,.18);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1440px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}
@media (min-width:1280px){.container{padding:0 48px;}}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,239,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;}
.logo-mark{
  position:relative;width:34px;height:34px;border-radius:50%;
  background:radial-gradient(circle at 30% 28%,#FFFFFF 0 12%,transparent 13%),
             conic-gradient(from 200deg,var(--primary),var(--accent) 55%,var(--secondary) 100%);
  display:grid;place-items:center;flex:0 0 auto;
  box-shadow:0 6px 16px rgba(242,92,42,.28);
}
.logo-mark::after{
  content:"";width:0;height:0;
  border-left:9px solid #fff;border-top:6px solid transparent;border-bottom:6px solid transparent;
  margin-left:2px;
}
.brand-name{font-family:var(--font-serif);font-size:20px;font-weight:700;letter-spacing:-.02em;}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;color:var(--ink);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--primary);border-radius:2px;transition:width .26s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{width:100%;}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border:1px solid var(--line-strong);border-radius:999px;
  font-size:14px;font-weight:600;color:var(--ink);background:var(--surface);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.mega-trigger:hover{border-color:var(--primary);background:#FFF3EC;transform:translateY(-1px);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:760px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);padding:26px;
  opacity:0;visibility:hidden;transform:translateY(8px);pointer-events:none;
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;}
.mega-col-title{font-size:12px;letter-spacing:.16em;color:var(--sub);text-transform:uppercase;margin-bottom:12px;}
.mega-link{display:block;padding:7px 0;font-size:14px;color:#3A3D43;}
.mega-link:hover{color:var(--primary);transform:translateX(3px);}
.mega-card{
  display:block;padding:14px;border:1px solid var(--line);border-radius:14px;background:var(--warm);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.mega-card:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:var(--shadow);}

.menu-toggle{
  display:inline-grid;place-items:center;width:42px;height:42px;
  border:1px solid var(--line-strong);border-radius:12px;background:var(--surface);cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

.drawer{
  position:fixed;inset:0;z-index:80;background:var(--obsidian);color:#F5F2EC;
  transform:translateX(100%);opacity:0;visibility:hidden;
  transition:transform .32s ease,opacity .32s ease,visibility .32s ease;
  padding:26px 22px;overflow-y:auto;
}
#mnav:checked ~ .drawer{transform:translateX(0);opacity:1;visibility:visible;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;border-bottom:1px solid rgba(255,255,255,.10);
  font-size:17px;color:#F5F2EC;
}
.drawer-link:hover{color:var(--accent);}
.drawer-close{
  display:grid;place-items:center;width:42px;height:42px;border-radius:12px;
  border:1px solid rgba(255,255,255,.18);color:#fff;background:transparent;cursor:pointer;font-size:18px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(242,92,42,.26);}
.btn-primary:hover{background:var(--primary-strong);transform:translateY(-1px);box-shadow:0 14px 30px rgba(242,92,42,.34);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong);}
.btn-ghost:hover{border-color:var(--primary);background:#FFF1E9;color:var(--primary-strong);}
.btn-light{background:transparent;color:#F5F2EC;border-color:rgba(255,255,255,.28);}
.btn-light:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.btn:active{transform:translateY(0) scale(.99);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.link-arrow span{transition:transform .2s ease;}
.link-arrow:hover span{transform:translateX(4px);}

/* ---------- Badges / Tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.6;
}
.badge-primary{background:rgba(242,92,42,.12);color:var(--primary-strong);}
.badge-secondary{background:rgba(14,159,138,.12);color:#0B7C6C;}
.badge-accent{background:rgba(242,193,78,.20);color:#8A6410;}
.badge-ink{background:rgba(20,21,24,.06);color:var(--ink);}
.tag{
  display:inline-flex;align-items:center;padding:7px 15px;border-radius:999px;
  border:1px solid var(--line-strong);font-size:13px;color:#3A3D43;background:var(--surface);
  transition:all .2s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary);background:#FFF3EC;}

/* ---------- Cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:0 6px 20px rgba(12,13,16,.06);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(242,92,42,.28);}
.card:hover .card-title{color:var(--primary);}
.card:hover .card-media img{transform:scale(1.04);}
.card-media{position:relative;overflow:hidden;border-radius:var(--radius-sm);background:#E7E2DA;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.card-title{transition:color .2s ease;}

/* ---------- Article ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--sub);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{opacity:.5;}
.crumb .current{color:var(--ink);font-weight:600;}

.article-hero-cover{
  position:relative;border-radius:var(--radius);overflow:hidden;
  aspect-ratio:21/9;background:#E7E2DA;border:1px solid var(--line);
}
.article-hero-cover img{width:100%;height:100%;object-fit:cover;}
.article-hero-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,13,16,0) 42%,rgba(12,13,16,.55) 100%);
}
.article-hero-caption{
  position:absolute;left:22px;bottom:18px;z-index:2;color:#fff;font-size:13px;letter-spacing:.02em;
}
.reading{
  max-width:800px;
  font-size:17px;line-height:1.9;color:#25272C;
}
.reading > p{margin:0 0 22px;}
.reading h2{
  font-family:var(--font-serif);font-size:27px;font-weight:700;
  margin:46px 0 18px;padding-bottom:12px;position:relative;
}
.reading h2::after{
  content:"";position:absolute;left:0;bottom:0;width:54px;height:4px;border-radius:2px;background:var(--primary);
}
.reading h3{font-size:20px;font-weight:700;margin:32px 0 12px;font-family:var(--font-serif);}
.reading p strong{font-weight:700;color:var(--ink);}
.reading a{color:var(--primary-strong);text-decoration:underline;text-underline-offset:4px;}
.reading a:hover{color:var(--primary);}
.reading ul,.reading ol{margin:0 0 22px;padding-left:22px;}
.reading ul li{list-style:disc;margin:8px 0;}
.reading ol li{list-style:decimal;margin:8px 0;}
.reading blockquote{
  margin:26px 0;padding:14px 22px;border-left:3px solid var(--secondary);
  background:rgba(14,159,138,.06);border-radius:0 14px 14px 0;color:#3E424A;
}
.reading figure{margin:26px 0;}
.reading img{border-radius:16px;width:100%;}
.reading figcaption{font-size:13px;color:var(--sub);margin-top:10px;text-align:center;}
.reading hr{border:none;border-top:1px solid var(--line);margin:38px 0;}

.toc{
  position:sticky;top:100px;
  border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);
  padding:22px;box-shadow:0 6px 20px rgba(12,13,16,.05);
}
.toc-title{font-size:13px;letter-spacing:.14em;color:var(--sub);margin-bottom:14px;}
.toc a{display:block;padding:7px 0 7px 14px;font-size:14px;color:#3A3D43;border-left:2px solid var(--line);}
.toc a:hover{color:var(--primary);border-left-color:var(--primary);background:#FFF6F1;}

.note-bar{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;border-radius:16px;border:1px solid rgba(242,193,78,.42);
  background:rgba(242,193,78,.12);font-size:14px;color:#6B5010;
}

/* ---------- FAQ ---------- */
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;font-size:16px;font-weight:600;transition:background .2s ease,color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-strong);
  display:grid;place-items:center;font-weight:400;font-size:16px;line-height:1;
  transition:transform .25s ease,border-color .25s ease,color .25s ease,background .25s ease;
}
.faq-item[open] summary{color:var(--primary-strong);background:rgba(242,92,42,.05);}
.faq-item[open] summary .plus{transform:rotate(45deg);border-color:var(--primary);color:var(--primary);background:rgba(242,92,42,.10);}
.faq-answer{padding:0 4px 22px;font-size:15px;color:var(--sub);max-width:820px;}

/* ---------- CTA / Footer ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;background:var(--obsidian);color:#F5F2EC;
  padding:56px 30px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.16;
}
.cta-band > *{position:relative;z-index:2;}

.site-footer{background:var(--obsidian);color:#CFCBC4;margin-top:96px;padding:64px 0 26px;}
.footer-title{font-size:13px;letter-spacing:.14em;color:#8E8A83;margin-bottom:16px;}
.footer-link{display:block;padding:5px 0;color:#CFCBC4;font-size:14px;}
.footer-link:hover{color:var(--primary);}
.footer-input{
  width:100%;height:50px;border-radius:12px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.05);color:#F5F2EC;padding:0 16px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-input::placeholder{color:#8E8A83;}
.footer-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(242,92,42,.26);}
.footer-divider{border-top:1px solid rgba(255,255,255,.10);margin-top:44px;padding-top:22px;}

/* ---------- Motion ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(18px);}to{opacity:1;transform:translateY(0);}}
.fade-up{animation:fadeUp .7s ease both;}
.d1{animation-delay:.08s;}.d2{animation-delay:.16s;}.d3{animation-delay:.24s;}.d4{animation-delay:.32s;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

@media (max-width:1023px){
  .mega-wrap{display:none;}
}
@media (max-width:640px){
  .reading{font-size:16px;}
  .reading h2{font-size:23px;}
  .site-footer{margin-top:64px;padding-top:48px;}
}

/* roulang page: category1 */
:root{
    --primary:#F25C2A;
    --primary-strong:#D9481B;
    --secondary:#0E9F8A;
    --accent:#F2C14E;
    --bg:#F7F4EF;
    --surface:#FFFFFF;
    --obsidian:#0C0D10;
    --ink:#141518;
    --sub:#5B5F66;
    --line:rgba(20,21,24,.08);
    --radius:20px;
    --shadow:0 12px 32px rgba(12,13,16,.10);
    --shadow-hover:0 20px 46px rgba(12,13,16,.16);
    --font-serif:"Songti SC","STSong","SimSun",serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font:inherit;cursor:pointer}
  input{font:inherit}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
  .shell{width:100%;max-width:1440px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.shell{padding:0 32px}}
  @media (min-width:1280px){.shell{padding:0 48px}}

  /* 导航 */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(247,244,239,.9);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px}
  .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
  .brand-mark{width:34px;height:34px;flex-shrink:0}
  .brand-name{font-size:19px;font-weight:700;letter-spacing:-.02em;color:var(--ink)}
  .nav-link{
    position:relative;
    font-size:15px;
    color:var(--ink);
    padding:6px 2px;
    transition:color .22s ease;
    white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
    background:var(--primary);border-radius:2px;
    transform:scaleX(0);transform-origin:left;
    transition:transform .25s cubic-bezier(.22,.7,.3,1);
  }
  .nav-link:hover{color:var(--primary)}
  .nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
  .nav-link.is-active{color:var(--primary);font-weight:600}

  .mega-wrap{position:relative}
  .mega-trigger{
    display:inline-flex;align-items:center;gap:7px;
    height:42px;padding:0 18px;
    border-radius:999px;border:1px solid var(--line);
    background:var(--surface);color:var(--ink);font-size:14px;font-weight:600;
    transition:all .22s ease;
  }
  .mega-trigger:hover{border-color:var(--primary);color:var(--primary);background:#FDF2ED}
  .mega-trigger svg{transition:transform .22s ease}
  .mega-wrap:hover .mega-trigger svg,.mega-wrap:focus-within .mega-trigger svg{transform:rotate(180deg)}
  .mega-panel{
    position:absolute;top:calc(100% + 14px);right:0;width:800px;
    background:var(--surface);
    border:1px solid var(--line);border-radius:24px;
    box-shadow:0 28px 64px rgba(12,13,16,.16);
    padding:28px;
    opacity:0;visibility:hidden;transform:translateY(8px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
    z-index:90;
  }
  .mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{
    opacity:1;visibility:visible;transform:translateY(0);
  }
  .mega-col-title{font-size:12px;letter-spacing:.14em;color:var(--sub);font-weight:600;margin-bottom:14px}
  .mega-link{display:block;font-size:14px;color:var(--ink);padding:7px 0;border-radius:8px;transition:color .2s ease}
  .mega-link:hover{color:var(--primary)}
  .mega-card{
    display:block;border-radius:16px;border:1px solid var(--line);
    padding:16px;background:linear-gradient(140deg,#FFF6F0,#FFFFFF);
    transition:all .22s ease;
  }
  .mega-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow)}

  .menu-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:12px;
    border:1px solid var(--line);background:var(--surface);
  }
  .menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
  .menu-toggle span::before,.menu-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  }
  .menu-toggle span::before{top:-6px}
  .menu-toggle span::after{top:6px}

  .drawer{
    position:fixed;inset:0;z-index:120;background:var(--bg);
    transform:translateY(-100%);opacity:0;visibility:hidden;
    transition:transform .3s cubic-bezier(.22,.7,.3,1),opacity .3s ease,visibility .3s;
    overflow-y:auto;
  }
  .drawer.is-open{transform:translateY(0);opacity:1;visibility:visible}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;height:74px}
  .drawer-close{
    width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
    display:inline-flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink);
  }
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:18px 4px;font-size:17px;font-weight:600;color:var(--ink);
    border-bottom:1px solid var(--line);
  }
  .drawer-link.is-active{color:var(--primary)}
  .drawer-link small{font-size:13px;font-weight:400;color:var(--sub)}

  /* HERO */
  .page-hero{
    position:relative;overflow:hidden;background:var(--obsidian);
    min-height:460px;display:flex;align-items:flex-end;
  }
  .page-hero .hero-bg{
    position:absolute;inset:0;width:100%;height:100%;
    object-fit:cover;opacity:.55;
    animation:heroDrift 24s ease-in-out infinite alternate;
  }
  .page-hero .hero-veil{
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(12,13,16,.62) 0%,rgba(12,13,16,.34) 42%,rgba(12,13,16,.94) 100%);
  }
  .hero-inner{position:relative;z-index:2;padding:112px 0 66px}
  @keyframes heroDrift{
    from{transform:scale(1.04) translate3d(0,0,0)}
    to{transform:scale(1.14) translate3d(0,-1.6%,0)}
  }
  .breadcrumb{font-size:13px;color:rgba(255,255,255,.62);letter-spacing:.02em}
  .breadcrumb a{transition:color .2s ease}
  .breadcrumb a:hover{color:var(--primary)}
  .breadcrumb .sep{margin:0 9px;opacity:.55}
  .breadcrumb .current{color:rgba(255,255,255,.94)}
  .hero-title{
    font-family:var(--font-serif);
    font-size:clamp(2rem,4.6vw,3.4rem);
    font-weight:700;letter-spacing:-.03em;line-height:1.12;
    color:#fff;margin:16px 0 16px;
  }
  .hero-sub{
    font-size:17px;line-height:1.7;color:rgba(255,255,255,.78);
    max-width:640px;margin:0 0 26px;
  }
  .hero-chips{display:flex;flex-wrap:wrap;gap:10px}
  .hero-chip{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 16px;border-radius:999px;
    border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
    color:rgba(255,255,255,.9);font-size:13px;
    backdrop-filter:blur(6px);
  }
  .hero-chip .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);flex-shrink:0}
  .fade-up{opacity:0;transform:translateY(18px);animation:fadeUp .72s cubic-bezier(.22,.7,.3,1) forwards}
  @keyframes fadeUp{to{opacity:1;transform:translateY(0)}}

  /* 板块 */
  .section{padding:68px 0}
  @media (min-width:1024px){.section{padding:96px 0}}
  .section-alt{background:linear-gradient(180deg,#FFFFFF 0%,#FBF8F4 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:24px;flex-wrap:wrap;margin-bottom:34px;
  }
  .section-head h2{
    font-family:var(--font-serif);
    font-size:clamp(1.7rem,3vw,2.2rem);
    font-weight:700;letter-spacing:-.03em;line-height:1.24;
    margin:0 0 10px;
  }
  .section-head p{margin:0;color:var(--sub);font-size:15px;max-width:660px;line-height:1.8}

  /* 筛选 */
  .chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
  .chip{
    padding:9px 18px;border-radius:999px;
    border:1px solid var(--line);background:var(--surface);
    font-size:14px;color:var(--sub);
    transition:all .22s ease;
  }
  .chip:hover{border-color:var(--primary);color:var(--primary);background:#FDF2ED}
  .chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
  .sort-note{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;color:var(--sub);
    border:1px solid var(--line);background:var(--surface);
    border-radius:999px;padding:8px 16px;
  }

  /* 海报卡片 */
  .poster-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  @media (min-width:768px){.poster-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
  @media (min-width:1024px){.poster-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}}
  .poster-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:12px;box-shadow:var(--shadow);
    transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  }
  .poster-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(242,92,42,.28)}
  .poster-thumb{
    position:relative;aspect-ratio:2/3;border-radius:16px;overflow:hidden;
    background:linear-gradient(160deg,#E9E3DA,#D9D2C7);
  }
  .poster-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .38s ease}
  .poster-card:hover .poster-thumb img{transform:scale(1.04)}
  .poster-thumb::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(to top,rgba(12,13,16,.66) 0%,rgba(12,13,16,0) 48%);
    pointer-events:none;
  }
  .poster-badge{
    position:absolute;top:10px;left:10px;z-index:2;
    font-size:11px;padding:4px 10px;border-radius:999px;
    background:rgba(242,92,42,.94);color:#fff;font-weight:600;letter-spacing:.02em;
  }
  .poster-score{
    position:absolute;left:10px;bottom:10px;z-index:2;
    font-size:12px;color:#fff;padding:4px 11px;border-radius:999px;
    background:rgba(12,13,16,.55);backdrop-filter:blur(6px);
  }
  .poster-play{
    position:absolute;right:10px;bottom:10px;z-index:2;
    width:38px;height:38px;border-radius:50%;
    background:rgba(255,255,255,.92);color:var(--primary);
    display:flex;align-items:center;justify-content:center;
    font-size:13px;opacity:0;transform:translateY(8px);
    transition:opacity .26s ease,transform .26s ease;
  }
  .poster-card:hover .poster-play{opacity:1;transform:translateY(0)}
  .poster-title{
    margin:13px 0 9px;font-size:16px;font-weight:600;line-height:1.5;
    transition:color .22s ease;
  }
  .poster-card:hover .poster-title{color:var(--primary)}
  .poster-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--sub)}
  .tag{display:inline-flex;align-items:center;border-radius:999px;padding:3px 10px;font-size:12px;line-height:1.65}
  .tag-secondary{background:rgba(14,159,138,.11);color:#0B7C6B}
  .tag-accent{background:rgba(242,193,78,.2);color:#8A6410}
  .tag-ink{background:rgba(20,21,24,.06);color:var(--sub)}

  /* 分页 */
  .pagination{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:52px}
  .page-btn{
    min-width:44px;height:44px;padding:0 16px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:12px;background:var(--surface);
    font-size:14px;color:var(--ink);
    transition:all .22s ease;
  }
  .page-btn:hover{border-color:var(--primary);color:var(--primary);background:#FDF2ED}
  .page-btn.is-current{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
  .page-btn.is-disabled{opacity:.5;pointer-events:none}
  .page-gap{display:inline-flex;align-items:center;color:var(--sub);padding:0 4px}

  /* 时间线 */
  .timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
  @media (max-width:1023px){.timeline{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (max-width:560px){.timeline{grid-template-columns:minmax(0,1fr)}}
  .timeline-item{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:24px;box-shadow:var(--shadow);transition:transform .24s ease,box-shadow .24s ease;
  }
  .timeline-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
  .timeline-day{
    display:inline-flex;font-size:12px;font-weight:600;color:var(--primary);
    background:rgba(242,92,42,.1);border-radius:999px;padding:4px 12px;
  }
  .timeline-item h3{margin:14px 0 8px;font-size:17px;font-weight:600;line-height:1.5}
  .timeline-item p{margin:0;font-size:14px;color:var(--sub);line-height:1.8}

  /* FAQ */
  .faq-list{border-bottom:1px solid var(--line)}
  .faq-item{border-top:1px solid var(--line);transition:background .24s ease}
  .faq-item[open]{background:rgba(242,92,42,.05)}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:22px 16px;font-size:17px;font-weight:600;line-height:1.6;
    cursor:pointer;list-style:none;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-plus{
    flex-shrink:0;width:30px;height:30px;border-radius:50%;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);background:var(--surface);color:var(--primary);
    font-size:17px;line-height:1;transition:transform .26s ease;
  }
  .faq-item[open] .faq-plus{transform:rotate(45deg)}
  .faq-item p{margin:0;padding:0 16px 24px;font-size:15px;color:var(--sub);line-height:1.88;max-width:880px}

  /* CTA */
  .cta-section{position:relative;overflow:hidden;background:var(--obsidian)}
  .cta-section .cta-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.26}
  .cta-section .cta-veil{
    position:absolute;inset:0;
    background:linear-gradient(120deg,rgba(12,13,16,.94) 0%,rgba(12,13,16,.72) 55%,rgba(12,13,16,.9) 100%);
  }
  .cta-inner{position:relative;z-index:2;padding:72px 0;text-align:left}
  @media (min-width:1024px){.cta-inner{padding:104px 0}}
  .cta-inner h2{
    font-family:var(--font-serif);color:#fff;
    font-size:clamp(1.9rem,3.6vw,2.8rem);font-weight:700;
    letter-spacing:-.03em;line-height:1.2;margin:0 0 16px;
  }
  .cta-inner p{color:rgba(255,255,255,.74);font-size:16px;line-height:1.8;max-width:620px;margin:0 0 32px}
  .cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
  .btn{
    display:inline-flex;align-items:center;gap:8px;
    height:50px;padding:0 28px;border-radius:999px;
    font-size:15px;font-weight:600;border:1px solid transparent;
    transition:all .22s ease;
  }
  .btn-primary{background:var(--primary);color:#fff}
  .btn-primary:hover{background:var(--primary-strong);transform:translateY(-2px);box-shadow:0 16px 30px rgba(242,92,42,.3)}
  .btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.3)}
  .btn-ghost:hover{border-color:var(--primary);background:rgba(242,92,42,.18);transform:translateY(-2px)}
  .link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary)}
  .link-arrow span{transition:transform .22s ease}
  .link-arrow:hover span{transform:translateX(4px)}
  .link-arrow-light{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:rgba(255,255,255,.85)}
  .link-arrow-light span{transition:transform .22s ease}
  .link-arrow-light:hover{color:var(--primary)}
  .link-arrow-light:hover span{transform:translateX(4px)}

  /* 页脚 */
  .site-footer{background:var(--obsidian);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0}
  .footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:40px}
  @media (max-width:1023px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px}}
  @media (max-width:560px){.footer-grid{grid-template-columns:minmax(0,1fr)}}
  .footer-brand-name{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:700;letter-spacing:-.02em}
  .footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:16px 0 14px;max-width:300px}
  .footer-site-link{font-size:13px;color:rgba(255,255,255,.5)}
  .footer-site-link a{color:rgba(255,255,255,.72);text-decoration:underline;text-underline-offset:4px;transition:color .2s ease}
  .footer-site-link a:hover{color:var(--primary)}
  .footer-col-title{font-size:13px;letter-spacing:.14em;color:rgba(255,255,255,.45);font-weight:600;margin-bottom:16px}
  .footer-link{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:6px 0;position:relative;transition:color .2s ease}
  .footer-link::after{
    content:"";position:absolute;left:0;bottom:3px;height:1px;width:0;
    background:var(--primary);transition:width .24s ease;
  }
  .footer-link:hover{color:var(--primary)}
  .footer-link:hover::after{width:100%}
  .subscribe-form{display:flex;flex-direction:column;gap:10px;margin-top:14px}
  .subscribe-input{
    height:50px;border-radius:12px;border:1px solid rgba(255,255,255,.16);
    background:rgba(255,255,255,.06);color:#fff;padding:0 16px;font-size:14px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .subscribe-input::placeholder{color:rgba(255,255,255,.42)}
  .subscribe-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(242,92,42,.24)}
  .subscribe-btn{
    height:50px;border-radius:12px;border:none;
    background:var(--primary);color:#fff;font-size:15px;font-weight:600;
    transition:all .22s ease;
  }
  .subscribe-btn:hover{background:var(--primary-strong);transform:translateY(-1px)}
  .subscribe-note{font-size:13px;color:rgba(255,255,255,.42);margin-top:10px}
  .footer-bottom{
    margin-top:56px;border-top:1px solid rgba(255,255,255,.1);
    padding:24px 0 30px;
    display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
    font-size:13px;color:rgba(255,255,255,.46);
  }

  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
    html{scroll-behavior:auto}
  }

/* roulang page: category2 */
:root{
    --primary:#F25C2A;
    --primary-strong:#D94A1C;
    --secondary:#0E9F8A;
    --accent:#F2C14E;
    --bg:#F7F4EF;
    --surface:#FFFFFF;
    --ink:#141518;
    --dark:#0C0D10;
    --sub:#5B5F66;
    --line:rgba(20,21,24,.08);
    --line-strong:rgba(20,21,24,.16);
    --radius:20px;
    --radius-sm:16px;
    --shadow:0 12px 32px rgba(12,13,16,.10);
    --shadow-lg:0 24px 52px rgba(12,13,16,.18);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none;transition:color .22s ease}
  button,input{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.2;letter-spacing:-.03em}
  p{margin:0}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}

  .shell{width:100%;max-width:1440px;margin:0 auto;padding-left:20px;padding-right:20px}
  @media (min-width:768px){.shell{padding-left:32px;padding-right:32px}}
  @media (min-width:1280px){.shell{padding-left:48px;padding-right:48px}}

  .font-display{font-family:"Songti SC","STSong","SimSun",serif;letter-spacing:-.02em}

  /* 导航 */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,244,239,.92);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .nav-link{
    position:relative;
    display:inline-block;
    padding:6px 0;
    font-size:15px;
    font-weight:500;
    color:#3B3F45;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
    background:var(--primary);transform:scaleX(0);transform-origin:left;
    transition:transform .26s cubic-bezier(.22,.61,.36,1);
  }
  .nav-link:hover{color:var(--primary)}
  .nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
  .nav-link.is-active{color:var(--primary);font-weight:600}

  .brand-mark{
    display:inline-flex;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:14px;
    background:linear-gradient(140deg,#F25C2A,#F2C14E);
    box-shadow:0 8px 20px rgba(242,92,42,.28);
    flex:none;
  }

  /* Mega 面板 */
  .mega-wrap{position:relative}
  .mega-panel{
    position:absolute;right:0;top:calc(100% + 14px);
    width:760px;max-width:calc(100vw - 40px);
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:24px;
    box-shadow:var(--shadow-lg);
    padding:26px;
    opacity:0;visibility:hidden;transform:translateY(8px);
    pointer-events:none;
    transition:opacity .24s ease,transform .24s ease,visibility .24s;
  }
  .mega-wrap:hover .mega-panel,
  .mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:none;pointer-events:auto}

  /* 按钮 */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;padding:13px 26px;font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;
    transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
  }
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(242,92,42,.28)}
  .btn-primary:hover{background:var(--primary-strong);transform:translateY(-1px);box-shadow:0 16px 32px rgba(242,92,42,.34)}
  .btn-ghost{background:rgba(255,255,255,.9);border-color:var(--line-strong);color:var(--ink)}
  .btn-ghost:hover{border-color:var(--primary);background:#FDF1EA;color:var(--primary);transform:translateY(-1px)}
  .btn-dark{background:var(--dark);color:#F7F4EF}
  .btn-dark:hover{background:#1A1B20;transform:translateY(-1px)}
  .btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
  .link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary)}
  .link-arrow span{transition:transform .22s ease;display:inline-block}
  .link-arrow:hover span{transform:translateX(4px)}

  /* 标签 / 徽章 */
  .badge{display:inline-flex;align-items:center;gap:5px;padding:4px 11px;border-radius:999px;font-size:12px;line-height:1.6;font-weight:500;white-space:nowrap}
  .badge-primary{background:rgba(242,92,42,.12);color:#C4461B}
  .badge-secondary{background:rgba(14,159,138,.12);color:#0B7F6F}
  .badge-accent{background:rgba(242,193,78,.24);color:#8A6A12}
  .badge-ink{background:rgba(20,21,24,.07);color:#3B3F45}
  .badge-glass{background:rgba(255,255,255,.14);color:#F7F4EF;border:1px solid rgba(255,255,255,.22)}

  .chip{
    display:inline-flex;align-items:center;gap:6px;
    padding:8px 16px;border-radius:999px;font-size:13px;
    background:#fff;border:1px solid var(--line);color:var(--sub);
    transition:border-color .2s ease,color .2s ease,background .2s ease;
  }
  .chip:hover{border-color:var(--primary);color:var(--primary)}
  .chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff}

  /* 卡片 */
  .card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    overflow:hidden;
    transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  }
  .card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(242,92,42,.28)}
  .media{overflow:hidden;background:#EDE7DE}
  .media img{width:100%;height:100%;object-fit:cover;transition:transform .34s ease}
  .card:hover .media img{transform:scale(1.04)}

  /* 榜单行 */
  .rank-row{
    display:grid;
    grid-template-columns:64px minmax(0,1fr) 108px;
    gap:20px;align-items:center;
    padding:24px 12px;
    border-bottom:1px solid var(--line);
    transition:background .24s ease;
  }
  .rank-row:hover{background:#FDF1EA}
  .rank-num{
    font-family:"Songti SC","STSong","SimSun",serif;
    font-size:44px;line-height:1;font-weight:900;
    color:rgba(20,21,24,.18);
    transition:color .24s ease;
  }
  .rank-row:hover .rank-num{color:var(--primary)}
  .rank-row:hover .rank-title{color:var(--primary)}
  .rank-thumb{width:108px;height:108px;border-radius:var(--radius-sm);overflow:hidden;background:#EDE7DE}
  .rank-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .34s ease}
  .rank-row:hover .rank-thumb img{transform:scale(1.06)}
  @media (max-width:767px){
    .rank-row{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:20px 4px}
    .rank-num{font-size:32px}
    .rank-thumb{display:none}
  }

  /* 横滑 */
  .scroll-x{
    display:flex;gap:20px;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    padding-bottom:16px;
    scrollbar-width:thin;
    scrollbar-color:var(--primary) transparent;
  }
  .scroll-x::-webkit-scrollbar{height:6px}
  .scroll-x::-webkit-scrollbar-track{background:transparent}
  .scroll-x::-webkit-scrollbar-thumb{background:var(--primary);border-radius:999px}
  .scroll-x > *{scroll-snap-align:start;flex:0 0 auto}

  /* 侧栏定位 */
  .sticky-aside{position:static}
  @media (min-width:1024px){
    .sticky-aside{position:sticky;top:104px;align-self:start}
  }
  .toc-link{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:12px 14px;border-radius:14px;font-size:14px;color:var(--sub);
    transition:background .2s ease,color .2s ease;
  }
  .toc-link:hover{background:#FDF1EA;color:var(--primary)}

  /* FAQ */
  .faq-item{border-top:1px solid var(--line);transition:background .24s ease}
  .faq-item:last-child{border-bottom:1px solid var(--line)}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
    padding:22px 14px;font-weight:600;font-size:16px;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item[open]{background:#FDF1EA}
  .faq-plus{
    flex:none;width:26px;height:26px;border-radius:999px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line-strong);color:var(--sub);font-size:16px;line-height:1;
    transition:transform .26s ease,color .26s ease,border-color .26s ease;
  }
  .faq-item[open] .faq-plus{transform:rotate(45deg);color:var(--primary);border-color:var(--primary)}

  /* 表单 */
  .field{
    width:100%;height:52px;border-radius:14px;
    border:1px solid rgba(255,255,255,.18);
    background:rgba(255,255,255,.06);
    color:#F7F4EF;padding:0 18px;font-size:15px;
    transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .field::placeholder{color:rgba(247,244,239,.45)}
  .field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(242,92,42,.28);background:rgba(255,255,255,.1)}

  /* 动效 */
  @keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
  .fade-up{opacity:0;animation:fadeUp .8s cubic-bezier(.22,.61,.36,1) forwards}
  .dly-1{animation-delay:.08s}.dly-2{animation-delay:.16s}.dly-3{animation-delay:.24s}.dly-4{animation-delay:.34s}
  @keyframes slowZoom{from{transform:scale(1.07)}to{transform:scale(1)}}
  .hero-media{animation:slowZoom 20s ease-out forwards}

  .hero-mask{background:linear-gradient(180deg,rgba(12,13,16,.42) 0%,rgba(12,13,16,.72) 52%,rgba(12,13,16,.94) 100%)}
  .grain::before{
    content:"";position:absolute;inset:0;opacity:.08;pointer-events:none;
    background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
    background-size:14px 14px;
  }

  .footer-link{color:rgba(247,244,239,.68);font-size:14px;transition:color .2s ease}
  .footer-link:hover{color:var(--primary)}

  @media (max-width:1023px){
    .mega-panel{display:none}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  }

/* roulang page: category3 */
:root {
    --primary: #F25C2A;
    --primary-strong: #D6461A;
    --secondary: #0E9F8A;
    --accent: #F2C14E;
    --sand: #F7F4EF;
    --surface: #FFFFFF;
    --obsidian: #0C0D10;
    --ink: #141518;
    --sub: #5B5F66;
    --line: rgba(20, 21, 24, .08);
    --radius: 20px;
    --radius-sm: 16px;
    --shadow: 0 12px 32px rgba(12, 13, 16, .10);
    --shadow-hover: 0 22px 48px rgba(12, 13, 16, .16);
  }

  *, *::before, *::after { box-sizing: border-box; }

  html { scroll-behavior: smooth; }

  body {
    margin: 0;
    background: var(--sand);
    color: var(--ink);
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
  }

  img { display: block; max-width: 100%; }
  a { color: inherit; text-decoration: none; }
  button, input { font: inherit; }

  :focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 6px;
  }

  .container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
  }
  @media (min-width: 768px) { .container { padding: 0 32px; } }
  @media (min-width: 1024px) { .container { padding: 0 48px; } }

  .section { padding: 56px 0; }
  @media (min-width: 1024px) { .section { padding: 96px 0; } }

  .serif { font-family: "Songti SC", "STSong", "SimSun", serif; }

  .display {
    font-family: "Songti SC", "STSong", "SimSun", serif;
    font-weight: 700;
    letter-spacing: -.03em;
    line-height: 1.1;
    font-size: clamp(2.2rem, 5.4vw, 3.7rem);
  }

  .h2 {
    font-family: "Songti SC", "STSong", "SimSun", serif;
    font-weight: 700;
    letter-spacing: -.02em;
    line-height: 1.25;
    font-size: clamp(1.5rem, 3vw, 2rem);
  }

  .h3 {
    font-weight: 600;
    letter-spacing: -.01em;
    font-size: 20px;
    line-height: 1.4;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    letter-spacing: .12em;
    color: var(--primary);
    text-transform: uppercase;
    font-weight: 600;
  }

  .lead { font-size: 17px; color: var(--sub); line-height: 1.9; }
  @media (min-width: 1024px) { .lead { font-size: 19px; } }

  /* ---------- 顶部导航 ---------- */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 80;
    background: rgba(247, 244, 239, .92);
    backdrop-filter: saturate(160%) blur(12px);
    border-bottom: 1px solid var(--line);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    height: 72px;
  }
  @media (min-width: 1024px) { .header-inner { height: 84px; } }

  .brand { display: inline-flex; align-items: center; gap: 10px; }
  .brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: radial-gradient(circle at 32% 30%, #FFB27A 0%, var(--primary) 55%, var(--primary-strong) 100%);
    box-shadow: 0 6px 16px rgba(242, 92, 42, .32);
    flex: none;
  }
  .brand-mark svg { width: 16px; height: 16px; }
  .brand-name {
    font-family: "Songti SC", "STSong", "SimSun", serif;
    font-weight: 700;
    font-size: 20px;
    letter-spacing: -.01em;
  }

  .nav-link {
    position: relative;
    font-size: 15px;
    color: var(--sub);
    padding: 6px 2px;
    transition: color .2s ease;
    white-space: nowrap;
  }
  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -3px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .25s ease;
  }
  .nav-link:hover { color: var(--primary); }
  .nav-link:hover::after { transform: scaleX(1); }
  .nav-link.is-active { color: var(--ink); font-weight: 600; }
  .nav-link.is-active::after { transform: scaleX(1); }

  .mega-wrap { position: relative; }
  .mega-trigger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: var(--sub);
    background: transparent;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 8px 16px;
    cursor: pointer;
    transition: .2s ease;
  }
  .mega-trigger:hover { color: var(--primary); border-color: rgba(242, 92, 42, .4); background: rgba(242, 92, 42, .06); }
  .mega-trigger .caret { transition: transform .25s ease; }
  .mega-wrap:hover .caret, .mega-wrap:focus-within .caret { transform: rotate(180deg); }

  .mega-panel {
    position: absolute;
    top: calc(100% + 16px);
    right: 0;
    width: 780px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 28px 64px rgba(12, 13, 16, .16);
    padding: 26px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity .22s ease, transform .22s ease, visibility .22s;
    z-index: 90;
  }
  .mega-wrap:hover .mega-panel,
  .mega-wrap:focus-within .mega-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .mega-title {
    font-size: 12px;
    letter-spacing: .14em;
    color: var(--sub);
    margin-bottom: 14px;
    font-weight: 600;
  }
  .mega-link {
    display: block;
    font-size: 14px;
    color: var(--ink);
    padding: 7px 0;
    transition: color .2s ease, transform .2s ease;
  }
  .mega-link:hover { color: var(--primary); transform: translateX(3px); }
  .mega-entry {
    display: block;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 16px;
    background: linear-gradient(140deg, #FFF6F1 0%, #FFFFFF 65%);
    transition: .25s ease;
  }
  .mega-entry:hover { border-color: rgba(242, 92, 42, .35); transform: translateY(-2px); box-shadow: var(--shadow); }

  .mobile-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface);
    cursor: pointer;
    color: var(--ink);
  }
  @media (min-width: 1024px) { .mobile-toggle { display: none; } }

  .mobile-panel {
    border-top: 1px solid var(--line);
    background: var(--surface);
    padding: 12px 0 22px;
  }
  .mobile-panel a {
    display: block;
    padding: 13px 4px;
    font-size: 16px;
    border-bottom: 1px solid var(--line);
  }
  .mobile-panel a:last-child { border-bottom: none; }

  /* ---------- 提示条 ---------- */
  .notice {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: #FFF6F1;
    border: 1px solid rgba(242, 92, 42, .18);
    border-left: 3px solid var(--primary);
    border-radius: 14px;
    padding: 14px 18px;
    font-size: 14px;
    color: #7A3A20;
  }

  /* ---------- 按钮 ---------- */
  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    border: 1px solid var(--primary);
    border-radius: 999px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(242, 92, 42, .22);
    transition: background .22s ease, transform .22s ease, box-shadow .22s ease;
  }
  .btn-primary:hover { background: var(--primary-strong); transform: translateY(-1px); box-shadow: 0 16px 30px rgba(242, 92, 42, .3); }
  .btn-primary:active { transform: translateY(0); }

  .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--ink);
    border: 1px solid rgba(20, 21, 24, .18);
    border-radius: 999px;
    padding: 14px 26px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: .22s ease;
  }
  .btn-ghost:hover { border-color: var(--primary); background: rgba(242, 92, 42, .08); color: var(--primary-strong); }

  .link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
  }
  .link-arrow .arw { transition: transform .22s ease; }
  .link-arrow:hover .arw { transform: translateX(4px); }

  /* ---------- 标签 ---------- */
  .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 12px;
    letter-spacing: .02em;
    background: var(--surface);
    border: 1px solid var(--line);
    color: var(--sub);
    line-height: 1.6;
  }
  .tag-green { color: var(--secondary); background: rgba(14, 159, 138, .1); border-color: rgba(14, 159, 138, .2); }
  .tag-yellow { color: #8A6413; background: rgba(242, 193, 78, .2); border-color: rgba(242, 193, 78, .38); }
  .tag-primary { color: #fff; background: var(--primary); border-color: var(--primary); }

  /* ---------- Hero ---------- */
  .hero-guide { padding: 40px 0 8px; }
  @media (min-width: 1024px) { .hero-guide { padding: 64px 0 16px; } }

  .hero-figure {
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    position: relative;
  }
  .hero-figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
  .hero-figure::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(200deg, rgba(12, 13, 16, 0) 45%, rgba(12, 13, 16, .38) 100%);
  }

  .breadcrumb {
    font-size: 13px;
    color: var(--sub);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
  }
  .breadcrumb .sep { color: rgba(20, 21, 24, .25); }
  .breadcrumb .current { color: var(--ink); font-weight: 600; }

  /* ---------- 文本双栏 ---------- */
  .prose-col p { margin: 0 0 22px; color: #2C2F35; }
  .prose-col p:last-child { margin-bottom: 0; }
  .prose-col .drop {
    font-family: "Songti SC", "STSong", "SimSun", serif;
    font-size: 17px;
    color: var(--ink);
  }

  .figure-card {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    background: var(--surface);
  }
  .figure-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
  .figure-card figcaption { font-size: 13px; color: var(--sub); padding: 14px 18px; }

  /* ---------- 时间线 ---------- */
  .timeline { list-style: none; margin: 0; padding: 0; max-width: 880px; }
  .timeline li { position: relative; padding: 0 0 36px 66px; }
  .timeline li:last-child { padding-bottom: 0; }
  .timeline li::before {
    content: attr(data-step);
    position: absolute;
    left: 0;
    top: 0;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--line);
    color: var(--primary);
    font-family: "Songti SC", "STSong", "SimSun", serif;
    font-weight: 700;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(12, 13, 16, .06);
    z-index: 1;
  }
  .timeline li::after {
    content: "";
    position: absolute;
    left: 21px;
    top: 46px;
    bottom: 4px;
    width: 1px;
    background: linear-gradient(180deg, rgba(242, 92, 42, .35), rgba(20, 21, 24, .08));
  }
  .timeline li:last-child::after { display: none; }
  .timeline h3 { margin: 0 0 8px; }
  .timeline p { margin: 0; color: var(--sub); font-size: 15px; max-width: 660px; }

  /* ---------- 主题指南卡片 ---------- */
  .guide-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: 0 6px 20px rgba(12, 13, 16, .05);
    transition: transform .26s ease, box-shadow .26s ease, border-color .26s ease;
    height: 100%;
  }
  .guide-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(242, 92, 42, .22); }
  .guide-icon {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: rgba(242, 92, 42, .1);
    color: var(--primary);
    font-size: 18px;
    margin-bottom: 18px;
  }
  .guide-list { list-style: none; margin: 18px 0 0; padding: 0; border-top: 1px solid var(--line); }
  .guide-list li { border-bottom: 1px solid var(--line); }
  .guide-list li:last-child { border-bottom: none; }
  .guide-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 0;
    font-size: 14px;
    color: var(--sub);
    transition: color .2s ease, padding-left .2s ease;
  }
  .guide-list a:hover { color: var(--primary); padding-left: 6px; }
  .guide-list a:hover .mini-arw { transform: translateX(3px); }
  .mini-arw { transition: transform .2s ease; color: var(--primary); }

  /* ---------- FAQ ---------- */
  .faq-item { border-top: 1px solid var(--line); transition: background .25s ease; }
  .faq-item:last-child { border-bottom: 1px solid var(--line); }
  .faq-item[open] { background: rgba(242, 92, 42, .05); }
  .faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 22px 18px 22px 4px;
    cursor: pointer;
    list-style: none;
    font-weight: 600;
    font-size: 17px;
    transition: color .2s ease;
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary:hover { color: var(--primary); }
  .plus { position: relative; width: 20px; height: 20px; flex: none; }
  .plus::before, .plus::after {
    content: "";
    position: absolute;
    background: var(--sub);
    border-radius: 2px;
    transition: transform .25s ease, background .25s ease;
  }
  .plus::before { left: 0; right: 0; top: 9px; height: 2px; }
  .plus::after { top: 0; bottom: 0; left: 9px; width: 2px; }
  .faq-item[open] .plus::before { background: var(--primary); }
  .faq-item[open] .plus::after { transform: scaleY(0); }
  .faq-answer { padding: 0 18px 24px 4px; color: var(--sub); font-size: 15px; line-height: 1.9; max-width: 820px; }

  /* ---------- 订阅表单 ---------- */
  .subscribe-card {
    background: linear-gradient(135deg, #FFF7F2 0%, #FFFFFF 55%, #F3FBF9 100%);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 34px;
    display: grid;
    gap: 26px;
    box-shadow: var(--shadow);
  }
  @media (min-width: 1024px) {
    .subscribe-card { grid-template-columns: 1fr 1fr; align-items: center; padding: 48px; gap: 48px; }
  }

  .field {
    width: 100%;
    height: 52px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: var(--surface);
    padding: 0 16px;
    font-size: 15px;
    color: var(--ink);
    transition: border-color .2s ease, box-shadow .2s ease;
  }
  .field::placeholder { color: rgba(91, 95, 102, .7); }
  .field:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(242, 92, 42, .14); }

  .form-hint { font-size: 13px; color: var(--sub); margin: 10px 0 0; }
  .form-state { font-size: 13px; margin: 10px 0 0; min-height: 20px; }
  .form-state.is-ok { color: var(--secondary); }
  .form-state.is-err { color: var(--primary); }

  /* ---------- 深色 CTA ---------- */
  .cta-dark {
    position: relative;
    background-color: var(--obsidian);
    color: #F4F1EC;
    border-radius: 28px;
    overflow: hidden;
    padding: 52px 28px;
    isolation: isolate;
  }
  @media (min-width: 1024px) { .cta-dark { padding: 76px 64px; } }
  .cta-dark .cta-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    opacity: .22;
    z-index: -1;
  }
  .cta-dark::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(12, 13, 16, .92) 0%, rgba(12, 13, 16, .55) 60%, rgba(12, 13, 16, .85) 100%);
    z-index: -1;
  }
  .cta-dark .lead { color: rgba(244, 241, 236, .74); }
  .btn-ghost-dark {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(244, 241, 236, .28);
    border-radius: 999px;
    padding: 14px 26px;
    font-size: 15px;
    font-weight: 600;
    color: #F4F1EC;
    transition: .22s ease;
  }
  .btn-ghost-dark:hover { border-color: var(--accent); color: var(--accent); }

  /* ---------- 页脚 ---------- */
  .site-footer {
    background: var(--obsidian);
    color: rgba(244, 241, 236, .72);
    margin-top: 72px;
    padding: 64px 0 28px;
    font-size: 14px;
  }
  @media (min-width: 1024px) { .site-footer { margin-top: 110px; padding: 84px 0 32px; } }
  .site-footer h4 { color: #F4F1EC; font-size: 14px; letter-spacing: .1em; margin: 0 0 18px; font-weight: 600; }
  .footer-link {
    display: inline-block;
    padding: 6px 0;
    color: rgba(244, 241, 236, .72);
    transition: color .2s ease, transform .2s ease;
  }
  .footer-link:hover { color: var(--primary); transform: translateX(3px); }
  .footer-brand-name {
    font-family: "Songti SC", "STSong", "SimSun", serif;
    font-size: 22px;
    font-weight: 700;
    color: #F4F1EC;
    letter-spacing: -.01em;
  }
  .footer-bottom {
    border-top: 1px solid rgba(244, 241, 236, .12);
    margin-top: 44px;
    padding-top: 22px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: space-between;
    font-size: 13px;
    color: rgba(244, 241, 236, .5);
  }
  .site-footer .field {
    background: rgba(244, 241, 236, .06);
    border-color: rgba(244, 241, 236, .16);
    color: #F4F1EC;
  }
  .site-footer .field::placeholder { color: rgba(244, 241, 236, .45); }
  .site-footer .field:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(242, 92, 42, .2); }

  /* ---------- 动效 ---------- */
  @keyframes riseIn {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .rise { animation: riseIn .7s ease both; }
  .rise-1 { animation-delay: .05s; }
  .rise-2 { animation-delay: .13s; }
  .rise-3 { animation-delay: .21s; }
  .rise-4 { animation-delay: .29s; }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
    html { scroll-behavior: auto; }
  }