/* roulang page: index */
:root{
  --ink:#15171b;
  --ink-2:#1e2128;
  --ink-soft:#3b3f47;
  --paper:#f7f5f0;
  --card:#ffffff;
  --sand:#efeae1;
  --line:#e4ded3;
  --line-2:#d8d1c4;
  --muted:#6e6b64;
  --accent:#d5f24a;
  --accent-deep:#b6d334;
  --sub:#ff6a2b;
  --radius-card:14px;
  --radius-ctl:8px;
  --radius-badge:4px;
  --shadow-1:0 1px 2px rgba(21,23,27,.04),0 6px 18px -14px rgba(21,23,27,.28);
  --shadow-2:0 12px 30px -16px rgba(21,23,27,.34),0 2px 6px rgba(21,23,27,.05);
  --shadow-3:0 22px 48px -22px rgba(21,23,27,.42);
  --font-cn:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"SFMono-Regular","JetBrains Mono","Roboto Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --ease:cubic-bezier(.22,.72,.28,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-cn);font-size:16.5px;line-height:1.78;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img,svg{display:block;max-width:100%}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.22;letter-spacing:-.022em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
::selection{background:var(--accent);color:var(--ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:.01em}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--accent);padding:10px 16px;border-radius:0 0 8px 0;z-index:2000}
.skip-link:focus{left:0}
.container{width:100%;max-width:1280px;margin-inline:auto;padding-inline:24px}
@media (min-width:1440px){.container{max-width:1340px}}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink);color:#e9e6df;font-size:13.5px;position:relative;z-index:1041}
.topbar-in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:42px}
.topbar-text{display:flex;align-items:center;gap:9px;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.topbar-text .pulse{flex:none;width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.75)}}
.topbar-text b{font-family:var(--font-mono);font-weight:700;color:var(--accent)}
.topbar-close{flex:none;width:28px;height:28px;display:grid;place-items:center;border-radius:6px;color:#a7a39b;transition:background-color .2s,color .2s}
.topbar-close:hover{color:var(--accent);background:rgba(255,255,255,.08)}
.topbar-close svg{width:13px;height:13px}

/* ============ Header 导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:var(--paper);border-bottom:1px solid transparent;transition:border-color .25s var(--ease),box-shadow .25s var(--ease)}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 10px 26px -24px rgba(21,23,27,.7)}
.header-in{display:flex;align-items:center;gap:22px;height:72px;transition:height .25s var(--ease)}
.site-header.is-stuck .header-in{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--ink);display:grid;place-items:center;color:var(--accent);flex:none}
.brand-mark svg{width:17px;height:17px}
.brand-text{font-size:18.5px;font-weight:800;letter-spacing:-.015em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-link{position:relative;padding:9px 13px;font-size:15.5px;font-weight:600;color:var(--ink-soft);white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;background:var(--accent-deep);transform:scaleX(0);transform-origin:left center;transition:transform .3s var(--ease)}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-box{position:relative;width:236px}
.search-box svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--muted);pointer-events:none}
.search-box input{width:100%;height:42px;padding:0 12px 0 34px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-ctl);font-size:14.5px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-box input::placeholder{color:#9d998f}
.search-box input:focus{outline:none;border-color:var(--accent-deep);box-shadow:0 0 0 3px rgba(213,242,74,.55)}
.link-login{font-size:15px;font-weight:600;color:var(--ink-soft);padding:6px 2px;border-bottom:1px solid transparent}
.link-login:hover{color:var(--ink);border-bottom-color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-ctl);font-size:15.5px;font-weight:600;letter-spacing:0;transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .18s var(--ease),box-shadow .22s var(--ease);white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14.5px}
.btn-ink{background:var(--ink);color:var(--paper);box-shadow:var(--shadow-1)}
.btn-ink:hover{background:#2a2e36;color:#fff}
.btn-accent{background:var(--accent);color:var(--ink);box-shadow:0 8px 20px -14px rgba(21,23,27,.9)}
.btn-accent:hover{background:var(--accent-deep);color:var(--ink)}
.btn-outline{background:transparent;color:var(--ink);border:1px solid var(--line-2)}
.btn-outline:hover{border-color:var(--ink);background:#fff}
.btn-ghost{padding:0;height:auto;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line-2);border-radius:0}
.btn-ghost:hover{border-bottom-color:var(--accent-deep)}
.burger{display:none;width:42px;height:42px;flex-direction:column;justify-content:center;align-items:center;gap:4px;border:1px solid var(--line);border-radius:8px;flex:none}
.burger span{width:16px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-drawer{background:var(--paper);border-top:1px solid var(--line)}
.drawer-in{padding:18px 24px 26px}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:16px}
.drawer-nav a{padding:13px 4px;font-size:16.5px;font-weight:600;border-bottom:1px solid var(--line)}
.drawer-nav a.is-active{color:var(--ink);box-shadow:inset 3px 0 0 var(--accent-deep);padding-left:14px}
.drawer-search{display:flex;gap:10px;margin-bottom:14px}
.drawer-search input{flex:1;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-ctl);background:#fff}
.drawer-search input:focus{outline:none;border-color:var(--accent-deep);box-shadow:0 0 0 3px rgba(213,242,74,.5)}
@media (min-width:992px){.nav-drawer{display:none !important}}
@media (max-width:991.98px){
  .main-nav,.search-box,.link-login{display:none}
  .burger{display:flex}
  .header-in{gap:12px;height:66px}
  .brand-text{font-size:16.5px}
}

/* ============ Hero ============ */
.hero{padding:60px 0 0;position:relative;overflow:hidden}
.hero-in{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-badge);font-size:13px;font-weight:600;letter-spacing:.03em;color:var(--ink-soft)}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--sub);flex:none}
.hero h1{font-size:clamp(31px,4.05vw,56px);font-weight:900;letter-spacing:-.038em;line-height:1.13;margin-top:22px}
.hero-sub{margin-top:20px;max-width:560px;color:var(--muted);font-size:17px;line-height:1.82}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:42px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.hero-stats dt{font-size:12.5px;color:var(--muted);font-weight:500;letter-spacing:.02em}
.hero-stats dd{margin:6px 0 0;font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:24px;font-weight:700;letter-spacing:-.02em}
.hero-media{position:relative;border-radius:var(--radius-card);overflow:hidden;aspect-ratio:5/6;box-shadow:var(--shadow-2);background:var(--sand)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(21,23,27,.02),rgba(21,23,27,.5))}
.hero-frame{position:absolute;right:20px;bottom:20px;width:62px;height:62px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);z-index:2}
.hero-float{position:absolute;left:20px;bottom:20px;z-index:2;background:var(--ink);color:var(--paper);padding:12px 16px;border-radius:10px;border:1px solid rgba(255,255,255,.14);box-shadow:var(--shadow-3)}
.hero-float span{display:block;font-size:12px;color:#a7a39b;margin-bottom:3px}
.hero-float strong{font-size:17px;color:var(--accent);font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.countdown-bar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:54px;padding:16px 22px;background:var(--ink);color:var(--paper);border-radius:var(--radius-card);border-left:3px solid var(--accent)}
.cd-label{font-size:14px;color:#b3afa7}
.cd-time{font-size:18px;font-weight:700;color:var(--accent);font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.cd-link{margin-left:auto;font-size:14.5px;font-weight:600;border-bottom:1px solid var(--accent);padding-bottom:2px}
.cd-link:hover{color:var(--accent)}
@media (max-width:991.98px){
  .hero{padding-top:44px}
  .hero-in{grid-template-columns:1fr;gap:34px}
  .hero-media{aspect-ratio:16/10;order:-1}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:16px 18px;margin-top:34px}
}
@media (max-width:575.98px){
  .hero-stats dd{font-size:21px}
  .countdown-bar{gap:10px;padding:14px 16px;margin-top:38px}
  .cd-link{margin-left:0}
}

/* ============ 通用板块 ============ */
.section{padding:104px 0}
.section-sand{background:var(--sand)}
.section-ink{background:var(--ink);color:var(--paper)}
.sec-head{max-width:740px;margin-bottom:46px}
.sec-head-wide{max-width:100%;display:flex;align-items:flex-end;justify-content:space-between;gap:26px;flex-wrap:wrap}
.sec-kicker{display:inline-block;font-family:var(--font-mono);font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--sub)}
.sec-head h2{font-size:clamp(25px,2.6vw,37px);font-weight:900;letter-spacing:-.032em;margin-top:12px}
.sec-desc{margin-top:14px;color:var(--muted);font-size:16.5px;line-height:1.82}
.section-ink .sec-desc{color:#a7a39b}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 9px;border-radius:var(--radius-badge);font-size:12.5px;font-weight:600;line-height:1.6}
.badge-line{border:1px solid var(--line);background:#fff;color:var(--ink-soft)}
.badge-sub{background:rgba(255,106,43,.11);color:#bd4415;border:1px solid rgba(255,106,43,.28)}
.badge-ink{background:var(--ink);color:var(--paper)}
.reveal{opacity:0;transform:translateY(14px);transition:opacity .58s var(--ease),transform .58s var(--ease);transition-delay:var(--d,0s)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 议程时间线 ============ */
.timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:0}
.tl-item{position:relative;padding-right:22px}
.tl-item:not(:last-child)::before{content:"";position:absolute;left:6px;right:0;top:41px;height:1px;background:var(--line-2);z-index:0}
.tl-time{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:13.5px;font-weight:700;letter-spacing:.02em}
.tl-node{position:relative;height:12px;margin:14px 0 18px}
.tl-dot{position:absolute;left:0;top:1px;width:11px;height:11px;border-radius:50%;background:var(--ink);z-index:1}
.tl-item.is-current .tl-dot{background:var(--sub);box-shadow:0 0 0 5px rgba(255,106,43,.16);animation:tlpulse 2.4s infinite}
@keyframes tlpulse{0%,100%{box-shadow:0 0 0 5px rgba(255,106,43,.16)}50%{box-shadow:0 0 0 9px rgba(255,106,43,.06)}}
.tl-title{font-size:16px;font-weight:700;letter-spacing:-.012em;margin-bottom:8px}
.tl-desc{font-size:14.2px;color:var(--muted);line-height:1.72;margin-bottom:14px}
@media (max-width:1199.98px){
  .timeline{grid-template-columns:repeat(3,1fr);gap:34px 0}
  .tl-item:nth-child(3n)::before{display:none}
}
@media (max-width:767.98px){
  .timeline{grid-template-columns:1fr;gap:0}
  .tl-item{padding:0 0 26px 30px}
  .tl-item:not(:last-child)::before{left:5px;right:auto;top:24px;bottom:-4px;width:1px;height:auto}
  .tl-time{font-size:13px}
  .tl-node{position:absolute;left:0;top:6px;margin:0;width:11px;height:11px}
  .tl-dot{top:0}
  .tl-title{margin-top:2px}
}

/* ============ 嘉宾与亮点 ============ */
.highlight-grid{display:grid;grid-template-columns:1fr 1fr 1.16fr;gap:24px}
.hl-row2{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.person-card,.info-card,.stat-block{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease)}
.person-card:hover,.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-2)}
.person-card{overflow:hidden;display:flex;flex-direction:column}
.person-photo{aspect-ratio:3/4;overflow:hidden;background:var(--sand)}
.person-photo img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.person-card:hover .person-photo img{transform:scale(1.045)}
.person-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.person-body h3{font-size:17.5px;font-weight:800}
.person-body p{font-size:14.2px;color:var(--muted);line-height:1.7}
.person-body .badge{align-self:flex-start;margin-top:auto}
.stat-block{background:var(--ink);border-color:var(--ink);color:var(--paper);padding:28px;display:flex;flex-direction:column;gap:22px;justify-content:space-between}
.stat-block .big{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:clamp(42px,5vw,58px);font-weight:800;line-height:1;color:var(--accent);letter-spacing:-.04em}
.stat-block .big em{display:block;font-style:normal;font-family:var(--font-cn);font-size:13px;font-weight:600;color:#a7a39b;letter-spacing:.04em;margin-top:10px}
.stat-block ul{display:grid;gap:10px;border-top:1px solid rgba(255,255,255,.13);padding-top:20px}
.stat-block li{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:#c9c5bd}
.stat-block li b{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--paper);font-weight:700}
.info-card{padding:24px}
.info-card h3{font-size:16.5px;font-weight:800;margin-bottom:10px}
.info-card p{font-size:14.4px;color:var(--muted);line-height:1.74}
.info-card .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:12.5px;font-weight:700;color:var(--sub);letter-spacing:.14em;display:block;margin-bottom:14px}
@media (max-width:991.98px){
  .highlight-grid{grid-template-columns:1fr 1fr;gap:20px}
  .stat-block{grid-column:span 2}
  .hl-row2{grid-template-columns:1fr 1fr;gap:20px}
}
@media (max-width:575.98px){
  .highlight-grid,.hl-row2{grid-template-columns:1fr}
  .stat-block{grid-column:span 1}
}

/* ============ 票种 ============ */
.tickets{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.ticket{position:relative;background:var(--sand);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px 26px 26px;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.ticket:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.ticket.is-featured{background:#fff;border:2px solid var(--accent-deep);box-shadow:var(--shadow-2)}
.ticket-flag{position:absolute;top:18px;right:18px;background:var(--sub);color:#fff;font-size:12px;font-weight:700;padding:4px 9px;border-radius:var(--radius-badge);letter-spacing:.02em}
.ticket h3{font-size:19px;font-weight:800;letter-spacing:-.018em}
.ticket-tier{display:block;font-size:13px;color:var(--muted);margin-top:6px}
.ticket-price{display:flex;align-items:baseline;gap:6px;margin:22px 0 6px}
.ticket-price b{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:40px;font-weight:800;letter-spacing:-.04em;line-height:1}
.ticket-price span{font-size:13.5px;color:var(--muted)}
.ticket-note{font-size:13.5px;color:var(--muted);margin-bottom:20px;padding-bottom:20px;border-bottom:1px solid var(--line-2)}
.ticket-benefits{display:grid}
.ticket-benefits li{display:flex;gap:10px;font-size:14.4px;line-height:1.66;padding:9px 0;border-bottom:1px dashed var(--line-2);color:var(--ink-soft)}
.ticket-benefits li:last-child{border-bottom:0}
.ticket-benefits li.off{color:#a49f96}
.tick-ic{flex:none;width:17px;height:17px;margin-top:5px}
.ticket-actions{display:flex;flex-direction:column;gap:10px;margin-top:22px}
.ticket-actions .btn{width:100%}
.ticket-more{display:none;align-items:center;justify-content:center;gap:8px;margin-top:14px;font-size:14px;font-weight:600;color:var(--ink-soft);border:1px solid var(--line-2);border-radius:var(--radius-ctl);height:44px;width:100%}
.ticket-more:hover{border-color:var(--ink)}
@media (max-width:991.98px){
  .tickets{grid-template-columns:1fr 1fr;gap:20px}
  .ticket.is-featured{grid-column:span 2}
}
@media (max-width:767.98px){
  .ticket-benefits{display:none}
  .ticket-benefits.is-open{display:grid}
  .ticket-more{display:inline-flex}
}
@media (max-width:575.98px){
  .tickets{grid-template-columns:1fr}
  .ticket.is-featured{grid-column:span 1}
}

/* ============ 报名表单 ============ */
.signup{background:var(--ink);color:var(--paper);padding:96px 0;position:relative;overflow:hidden}
.signup::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--accent)}
.signup-in{display:grid;grid-template-columns:5fr 6fr;gap:60px;align-items:start;position:relative}
.signup h2{font-size:clamp(25px,2.5vw,36px);font-weight:900;letter-spacing:-.032em;margin-top:12px}
.signup-lead{margin-top:18px;color:#b3afa7;font-size:16.5px;line-height:1.82}
.signup-list{display:grid;gap:14px;margin-top:30px;border-top:1px solid rgba(255,255,255,.13);padding-top:26px}
.signup-list li{display:flex;gap:12px;font-size:15px;color:#c9c5bd;line-height:1.72}
.signup-list li b{color:var(--paper);font-weight:700}
.signup-list .dot{flex:none;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:10px}
.form-card{background:#191c22;border:1px solid #2c3038;border-radius:var(--radius-card);padding:28px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-field.span-2{grid-column:span 2}
.form-field label{display:block;font-size:13.5px;font-weight:600;color:#b3afa7;margin-bottom:8px}
.form-field label .req{color:var(--sub)}
.form-field input,.form-field select,.form-field textarea{width:100%;height:50px;background:#20242b;border:1px solid #343941;border-radius:var(--radius-ctl);padding:0 14px;font-size:15px;color:#f3f1ec;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.form-field textarea{height:96px;padding:12px 14px;line-height:1.65;resize:vertical}
.form-field select{appearance:none;-webkit-appearance:none;padding-right:40px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23b3afa7' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 15px center}
.form-field input::placeholder,.form-field textarea::placeholder{color:#6f7480}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(213,242,74,.2)}
.form-field.has-error input,.form-field.has-error select{border-color:var(--sub);box-shadow:0 0 0 3px rgba(255,106,43,.18)}
.field-error{display:none;margin-top:7px;font-size:12.5px;color:#ff8a55}
.form-field.has-error .field-error{display:block}
.form-check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#b3afa7;line-height:1.7}
.form-check input{width:18px;height:18px;margin-top:4px;accent-color:var(--accent-deep);flex:none}
.form-check a{color:var(--paper);border-bottom:1px solid rgba(255,255,255,.35)}
.form-check a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.form-actions{margin-top:22px}
.form-actions .btn{width:100%}
.form-hint{margin-top:14px;font-size:12.6px;color:#7f848d;line-height:1.7}
@media (max-width:991.98px){
  .signup{padding:72px 0}
  .signup-in{grid-template-columns:1fr;gap:36px}
}
@media (max-width:575.98px){
  .form-card{padding:20px}
  .form-grid{grid-template-columns:1fr}
  .form-field.span-2{grid-column:span 1}
}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease)}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-2)}
.news-card.is-lead{grid-column:span 2}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--sand)}
.news-card.is-lead .news-thumb{aspect-ratio:2.15/1}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.045)}
.news-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.news-time{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:12.5px;color:var(--muted)}
.news-body h3{font-size:17px;font-weight:800;letter-spacing:-.015em;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card.is-lead .news-body h3{font-size:20.5px}
.news-body p{font-size:14.4px;color:var(--muted);line-height:1.72;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;padding-top:6px}
.news-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);border-bottom:1px solid transparent}
.news-more svg{width:14px;height:14px;transition:transform .25s var(--ease)}
.news-more:hover{border-bottom-color:var(--accent-deep)}
.news-more:hover svg{transform:translateX(3px)}
.news-empty{display:grid;place-items:center;text-align:center;gap:18px;padding:64px 24px;background:#fff;border:1px dashed var(--line-2);border-radius:var(--radius-card)}
.news-empty svg{width:88px;height:64px;color:var(--line-2)}
.news-empty p{font-size:15.5px;color:var(--muted)}
@media (max-width:991.98px){
  .news-grid{grid-template-columns:1fr 1fr;gap:20px}
  .news-card.is-lead{grid-column:span 2}
  .news-card.is-lead .news-thumb{aspect-ratio:16/9}
}
@media (max-width:575.98px){
  .news-grid{grid-template-columns:1fr}
  .news-card.is-lead{grid-column:span 1}
  .news-card.is-lead .news-body h3{font-size:17.5px}
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq .accordion-item:first-child{border-top:1px solid var(--line)}
.faq .accordion-button{background:transparent;color:var(--ink);padding:24px 0;font-size:17.5px;font-weight:700;letter-spacing:-.014em;gap:18px;box-shadow:none;border-radius:0}
.faq .accordion-button:not(.collapsed){background:transparent;color:var(--ink);box-shadow:none}
.faq .accordion-button:hover{color:#000}
.faq .accordion-button:focus{box-shadow:none;border:0}
.faq .accordion-button:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.faq .accordion-button::after{content:"+";flex:none;width:28px;height:28px;display:grid;place-items:center;background-image:none;border:1px solid var(--line-2);border-radius:6px;font-family:var(--font-mono);font-size:18px;font-weight:600;color:var(--ink);transform:none;transition:transform .28s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease)}
.faq .accordion-button:not(.collapsed)::after{content:"–";background-color:var(--accent);border-color:var(--accent-deep);transform:rotate(180deg)}
.faq .accordion-body{padding:0 0 26px;font-size:15.5px;color:var(--muted);line-height:1.85;max-width:760px;animation:fadeIn .32s var(--ease)}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.faq .accordion-body b{color:var(--ink);font-weight:700}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#c9c5bd;padding:78px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);color:var(--accent);width:32px;height:32px;border-radius:9px}
.footer-brand strong{color:var(--paper);font-size:18px;font-weight:800;letter-spacing:-.015em}
.footer-desc{font-size:14.4px;line-height:1.8;color:#a7a39b;max-width:330px}
.footer-social{display:flex;gap:10px;margin-top:22px}
.footer-social a{width:38px;height:38px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.15);border-radius:9px;color:#c9c5bd;transition:border-color .22s var(--ease),color .22s var(--ease),background-color .22s var(--ease)}
.footer-social a:hover{border-color:var(--accent);color:var(--accent);background:rgba(213,242,74,.07)}
.footer-social svg{width:16px;height:16px}
.footer-col h4{color:var(--paper);font-size:15.5px;font-weight:800;letter-spacing:.01em;margin-bottom:18px}
.footer-links{display:grid;gap:2px}
.footer-links a{display:inline-block;padding:5px 0;font-size:14.4px;color:#a7a39b}
.footer-links a:hover{color:var(--accent)}
.footer-contact{display:grid;gap:12px;font-size:14.4px;color:#a7a39b}
.footer-contact b{display:block;color:var(--paper);font-weight:600;font-size:13px;letter-spacing:.04em;margin-bottom:2px}
.footer-contact a:hover{color:var(--accent)}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.11);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8c8880}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a:hover{color:var(--accent)}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:38px}
  .footer-desc{max-width:100%}
}
@media (max-width:575.98px){
  .site-footer{padding-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
}

/* ============ 返回顶部 ============ */
.to-top{position:fixed;right:24px;bottom:24px;width:46px;height:46px;display:grid;place-items:center;background:var(--ink);color:var(--accent);border-radius:10px;box-shadow:var(--shadow-3);opacity:0;pointer-events:none;transform:translateY(8px);transition:opacity .3s var(--ease),transform .3s var(--ease);z-index:1040}
.to-top.is-on{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{background:#2a2e36}
.to-top svg{width:17px;height:17px}
@media (max-width:575.98px){.to-top{right:16px;bottom:16px;width:42px;height:42px}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --ink:#131311;
  --ink-2:#232219;
  --paper:#f7f5ef;
  --paper-2:#fffdf8;
  --sand:#ebe6da;
  --sand-deep:#e0d9c9;
  --lime:#d8f14a;
  --lime-deep:#bfd92c;
  --orange:#ef6a2a;
  --text:#1c1b16;
  --muted:#6f6c61;
  --line:#ded8ca;
  --radius-card:14px;
  --radius-ctl:8px;
  --radius-badge:4px;
  --shadow-1:0 1px 2px rgba(19,19,17,.05), 0 8px 20px -14px rgba(19,19,17,.20);
  --shadow-2:0 2px 6px rgba(19,19,17,.07), 0 20px 38px -20px rgba(19,19,17,.28);
  --shadow-3:0 4px 12px rgba(19,19,17,.08), 0 28px 60px -28px rgba(19,19,17,.34);
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",ui-monospace,Menlo,Consolas,"Courier New",monospace;
  --container:1280px;
  --gut:24px;
}
*,*::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:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--ink);}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.24;}
p{margin:0 0 1.05em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--lime-deep);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gut);
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink);color:#f2efe4;font-size:14px;}
.topbar-inner{display:flex;align-items:center;gap:12px;min-height:42px;padding-top:6px;padding-bottom:6px;}
.topbar-dot{width:8px;height:8px;border-radius:50%;background:var(--lime);flex:0 0 auto;box-shadow:0 0 0 4px rgba(216,241,74,.16);}
.topbar p{margin:0;flex:1 1 auto;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#ded9c9;}
.topbar p b{color:#fff;font-weight:700;}
.topbar-close{
  flex:0 0 auto;width:28px;height:28px;border-radius:6px;border:1px solid rgba(255,255,255,.22);
  background:transparent;color:#f2efe4;line-height:1;display:grid;place-items:center;cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.topbar-close:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4);}
.topbar.is-hidden{display:none;}

/* ---------- 头部与导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--paper-2);
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 1px 0 rgba(19,19,17,.04), 0 10px 26px -22px rgba(19,19,17,.5);}
.header-inner{display:flex;align-items:center;gap:22px;min-height:72px;}
.site-header.is-stuck .header-inner{min-height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:8px;background:var(--ink);color:var(--lime);
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:18px;font-weight:900;letter-spacing:-.02em;color:var(--ink);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:6px;}
.nav-link{
  position:relative;font-size:15.5px;font-weight:600;color:#3d3b32;padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;background:var(--ink);
  transform:scaleX(0);transform-origin:left;transition:transform .28s cubic-bezier(.22,.9,.28,1);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:800;}
.nav-link.is-active::after{transform:scaleX(1);background:var(--lime-deep);}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{position:relative;width:236px;}
.nav-search input{
  width:100%;height:44px;border-radius:var(--radius-ctl);border:1px solid var(--line);
  background:var(--paper);padding:0 40px 0 14px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search input::placeholder{color:#9b968a;}
.nav-search input:focus{outline:none;background:#fff;border-color:var(--lime-deep);box-shadow:0 0 0 3px rgba(216,241,74,.4);}
.nav-search button{
  position:absolute;right:6px;top:6px;width:32px;height:32px;border:0;border-radius:6px;
  background:transparent;color:#56534a;cursor:pointer;display:grid;place-items:center;transition:background .2s ease,color .2s ease;
}
.nav-search button:hover{background:var(--sand);color:var(--ink);}
.nav-login{font-size:15px;font-weight:600;color:#3d3b32;}
.nav-login:hover{color:var(--ink);}
.hamburger{
  display:none;width:44px;height:44px;border-radius:var(--radius-ctl);border:1px solid var(--line);
  background:var(--paper-2);color:var(--ink);cursor:pointer;align-items:center;justify-content:center;
}
.hamburger:hover{background:var(--sand);}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-ctl);border:1px solid transparent;
  font-size:15.5px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,box-shadow .22s ease,transform .12s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime);box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--lime-deep);border-color:var(--lime-deep);color:var(--ink);box-shadow:var(--shadow-2);}
.btn-dark{background:var(--ink);color:#fdfbf4;border-color:var(--ink);}
.btn-dark:hover{background:#000;border-color:#000;color:#fff;box-shadow:var(--shadow-2);}
.btn-outline{background:transparent;color:var(--ink);border-color:#c9c2b1;}
.btn-outline:hover{background:var(--ink);color:#fdfbf4;border-color:var(--ink);}
.btn-ghost{background:transparent;color:var(--ink);border:0;padding:0 2px;height:auto;text-decoration:underline;text-decoration-color:var(--lime-deep);text-underline-offset:5px;text-decoration-thickness:2px;}
.btn-ghost:hover{color:var(--orange);}
.btn-sm{height:40px;padding:0 16px;font-size:14.5px;}
.nav-cta{height:44px;padding:0 20px;}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{display:none;background:var(--paper-2);border-top:1px solid var(--line);}
.mobile-drawer .drawer-inner{padding:18px 0 26px;display:flex;flex-direction:column;gap:16px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav .nav-link{padding:13px 0;border-bottom:1px solid var(--line);font-size:16.5px;}
.drawer-nav .nav-link::after{display:none;}
.drawer-search{position:relative;}
.drawer-search input{width:100%;height:48px;border-radius:var(--radius-ctl);border:1px solid var(--line);background:var(--paper);padding:0 44px 0 14px;}
.drawer-search input:focus{outline:none;border-color:var(--lime-deep);box-shadow:0 0 0 3px rgba(216,241,74,.4);}
.drawer-search button{position:absolute;right:6px;top:6px;width:36px;height:36px;border:0;border-radius:6px;background:var(--sand);color:var(--ink);cursor:pointer;}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:22px 0 0;}
.crumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted);min-width:0;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--ink);}
.crumb .crumb-sep{color:#c3bdae;}
.crumb .crumb-current{
  color:var(--ink);font-weight:600;max-width:420px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

/* ---------- 文章头部 ---------- */
.article-head{padding:26px 0 34px;border-bottom:1px solid var(--line);}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12.5px;
  letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:16px;
}
.kicker::before{content:"";width:26px;height:2px;background:var(--lime-deep);display:block;}
.article-title{
  font-size:clamp(28px,4.2vw,46px);font-weight:900;letter-spacing:-.03em;line-height:1.16;
  max-width:900px;margin-bottom:20px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;font-size:14.5px;color:var(--muted);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:var(--radius-badge);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;
}
.badge-orange{background:rgba(239,106,42,.12);color:var(--orange);border:1px solid rgba(239,106,42,.3);}
.badge-outline{background:transparent;color:#4b483e;border:1px solid var(--line);}
.meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-item i{color:#a9a396;font-size:13px;}
.share-group{display:flex;align-items:center;gap:8px;margin-left:auto;}
.share-group button{
  width:38px;height:38px;border-radius:var(--radius-ctl);border:1px solid var(--line);background:var(--paper-2);
  color:#4b483e;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .12s ease;
}
.share-group button:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);transform:translateY(-2px);}

/* ---------- 文章布局 ---------- */
.article-wrap{padding:46px 0 96px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:60px;align-items:start;}
.article-main{min-width:0;max-width:760px;}
.article-cover{
  aspect-ratio:16/9;border-radius:var(--radius-card);overflow:hidden;background:var(--sand);
  border:1px solid var(--line);margin-bottom:36px;
}
.article-cover img{width:100%;height:100%;object-fit:cover;}

/* ---------- 正文排版 ---------- */
.article-body{font-size:16.5px;line-height:1.85;color:#26241d;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.35em;}
.article-body h2{
  position:relative;font-size:22px;font-weight:800;margin:44px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;background:var(--lime-deep);
}
.article-body h3{font-size:18.5px;font-weight:700;margin:30px 0 12px;}
.article-body h4{font-size:17px;font-weight:700;margin:24px 0 10px;}
.article-body a{color:var(--ink);border-bottom:2px solid var(--lime-deep);}
.article-body a:hover{color:var(--orange);}
.article-body ul,.article-body ol{margin:0 0 1.35em;padding-left:0;}
.article-body li{position:relative;padding-left:24px;margin-bottom:.6em;}
.article-body ul > li::before{
  content:"";position:absolute;left:4px;top:.68em;width:7px;height:7px;background:var(--ink);border-radius:1px;
}
.article-body ol{counter-reset:item;}
.article-body ol > li{counter-increment:item;}
.article-body ol > li::before{
  content:counter(item);position:absolute;left:0;top:.1em;font-family:var(--font-mono);font-size:14px;
  font-weight:700;color:var(--orange);
}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;background:var(--sand);border-left:4px solid var(--orange);
  border-radius:0 var(--radius-card) var(--radius-card) 0;color:#333025;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-card);margin:26px 0;border:1px solid var(--line);}
.article-body figure{margin:26px 0;}
.article-body figcaption{text-align:center;font-size:13.5px;color:var(--muted);margin-top:10px;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:26px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
}
.article-body thead th{background:var(--ink);color:#f6f3e8;font-weight:700;text-align:left;padding:13px 16px;}
.article-body tbody td{padding:13px 16px;border-top:1px solid var(--line);}
.article-body tbody tr:nth-child(even) td{background:#fbf9f2;}
.article-body pre{
  background:var(--sand);border:1px solid var(--sand-deep);border-radius:var(--radius-card);
  padding:18px 20px;overflow:auto;font-family:var(--font-mono);font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body code{font-family:var(--font-mono);font-size:.92em;background:var(--sand);border-radius:4px;padding:2px 6px;}
.article-body pre code{background:none;padding:0;}

/* ---------- 侧栏 ---------- */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px;}
.aside-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.aside-title{
  font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;
  margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;
}
.toc-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);}
.toc-item a{
  display:block;padding:7px 0 7px 16px;font-size:14.5px;color:#53503f;border-left:2px solid transparent;
  margin-left:-1px;transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.toc-item a:hover{color:var(--ink);background:#fbf9f2;}
.toc-item a.is-current{color:var(--ink);font-weight:700;border-left-color:var(--lime-deep);}
.toc-item.toc-sub a{padding-left:28px;font-size:13.8px;color:#736f61;}
.toc-toggle{display:none;}
.aside-promo{background:var(--ink);color:#efeada;border-color:var(--ink);}
.aside-promo h4{color:#fff;font-size:17px;margin-bottom:8px;}
.aside-promo p{color:#bfbaab;font-size:14.5px;margin-bottom:16px;}
.aside-promo .btn{width:100%;}
.aside-list li + li{border-top:1px dashed var(--line);margin-top:12px;padding-top:12px;}
.aside-list a{display:block;font-size:14.8px;font-weight:600;color:#33312a;line-height:1.55;}
.aside-list a:hover{color:var(--orange);}
.aside-list .aside-time{font-size:12.5px;color:var(--muted);margin-top:6px;display:block;}

/* ---------- 文末区 ---------- */
.article-foot{margin-top:52px;border-top:1px solid var(--line);padding-top:34px;}
.field-label{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--muted);margin-bottom:12px;}
.tag-list{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:30px;}
.tag-list a{
  display:inline-flex;align-items:center;height:32px;padding:0 12px;border-radius:var(--radius-badge);
  border:1px solid var(--line);background:var(--paper-2);font-size:13.5px;font-weight:600;color:#4b483e;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.tag-list a:hover{background:var(--lime);border-color:var(--lime);color:var(--ink);}
.back-cat{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:44px;}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card-post{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-1);
  transition:transform .28s cubic-bezier(.22,.9,.28,1),box-shadow .28s ease,border-color .28s ease;
}
.card-post:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#cfc8b6;}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--sand);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.22,.9,.28,1);}
.card-post:hover .card-thumb img{transform:scale(1.05);}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);}
.card-title{font-size:17px;font-weight:800;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-post:hover .card-title{color:var(--orange);}
.card-desc{
  font-size:14.5px;color:#5c5849;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden;margin:0;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13.5px;}
.card-foot .more{font-weight:700;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}
.card-foot .more i{font-size:11px;transition:transform .24s ease;}
.card-post:hover .card-foot .more i{transform:translateX(3px);}

/* ---------- CTA 横幅 ---------- */
.cta-banner{
  margin-top:56px;background:var(--ink);color:#f1ede0;border-radius:var(--radius-card);
  padding:40px 44px;display:flex;align-items:center;gap:32px;flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-banner::after{
  content:"";position:absolute;right:-70px;top:-70px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(216,241,74,.22),transparent 68%);
}
.cta-banner h2{color:#fff;font-size:24px;margin-bottom:8px;}
.cta-banner p{color:#bdb8a9;margin:0;font-size:15px;max-width:620px;}
.cta-banner .cta-actions{margin-left:auto;display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed #cdc6b4;border-radius:var(--radius-card);background:var(--paper-2);
  padding:56px 28px;text-align:center;
}
.empty-state .empty-icon{
  width:66px;height:66px;margin:0 auto 18px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:#a9a396;font-size:24px;background:var(--paper);
}
.empty-state h3{font-size:19px;margin-bottom:8px;}
.empty-state p{color:var(--muted);margin-bottom:20px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#b9b4a5;padding:66px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);}
.footer-brand strong{color:#fff;font-size:17.5px;font-weight:900;letter-spacing:-.02em;}
.footer-desc{font-size:14.5px;line-height:1.8;color:#a8a394;max-width:340px;margin-bottom:20px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:38px;height:38px;border-radius:var(--radius-ctl);border:1px solid rgba(255,255,255,.16);
  display:grid;place-items:center;color:#d8d3c4;transition:background .22s ease,color .22s ease,border-color .22s ease,transform .12s ease;
}
.footer-social a svg{width:16px;height:16px;}
.footer-social a:hover{background:var(--lime);color:var(--ink);border-color:var(--lime);transform:translateY(-2px);}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.1em;font-weight:800;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14.5px;color:#a8a394;}
.footer-links a:hover{color:var(--lime);}
.footer-contact{display:flex;flex-direction:column;gap:14px;font-size:14.5px;color:#a8a394;}
.footer-contact b{display:block;color:#e8e3d5;font-weight:700;font-size:13.5px;margin-bottom:3px;}
.footer-contact a{color:var(--lime);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;display:flex;align-items:center;
  gap:16px;flex-wrap:wrap;font-size:13.5px;color:#8f8a7c;
}
.footer-bottom .brand-line{color:#c9c4b5;}
.footer-bottom .spacer{margin-left:auto;}

/* ---------- 返回顶部 ---------- */
.back-to-top{
  position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:10px;border:0;
  background:var(--ink);color:var(--lime);display:grid;place-items:center;cursor:pointer;z-index:1040;
  opacity:0;visibility:hidden;transform:translateY(8px);box-shadow:var(--shadow-2);
  transition:opacity .26s ease,transform .26s ease,visibility .26s ease,background .2s ease;
}
.back-to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.back-to-top:hover{background:#000;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 270px;gap:44px;}
  .related-grid{gap:20px;}
}
@media (max-width:991.98px){
  :root{--gut:20px;}
  .main-nav,.nav-search,.nav-login{display:none;}
  .hamburger{display:inline-flex;}
  .mobile-drawer.show{display:block;}
  .article-wrap{padding:38px 0 76px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-aside{position:static;order:-1;}
  .toc-toggle{
    display:inline-flex;align-items:center;gap:8px;width:100%;justify-content:space-between;
    background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-ctl);
    height:46px;padding:0 14px;font-weight:700;color:var(--ink);cursor:pointer;
  }
  .toc-list.is-collapsed{display:none;}
  .toc-list{max-height:none;padding-top:14px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-banner{padding:32px 28px;}
  .cta-banner .cta-actions{margin-left:0;width:100%;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .article-title{font-size:clamp(24px,6.4vw,32px);}
  .article-head{padding:20px 0 26px;}
  .share-group{margin-left:0;width:100%;}
  .crumb .crumb-current{max-width:200px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .topbar p{font-size:13px;}
  .topbar p b{display:none;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:20px;margin-top:36px;}
  .cta-banner h2{font-size:20px;}
  .footer-bottom .spacer{display:none;}
  .back-to-top{right:16px;bottom:16px;}
}
@media (max-width:575.98px){
  :root{--gut:16px;}
  .brand-text{font-size:16.5px;}
  .brand-mark{width:30px;height:30px;}
  .header-inner{gap:12px;min-height:64px;}
  .article-cover{margin-bottom:26px;}
  .cta-banner{padding:26px 20px;border-radius:12px;}
  .cta-banner .btn{width:100%;}
  .aside-card{padding:18px;}
  .btn{height:46px;font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink:#16181a;
  --ink-2:#2b2e31;
  --ink-3:#4a4d50;
  --paper:#f7f5f1;
  --paper-2:#efece5;
  --paper-3:#e7e2d8;
  --line:#e2dcd0;
  --line-2:rgba(247,245,241,.16);
  --muted:#6f6f68;
  --accent:#cff23f;
  --accent-deep:#b8dc22;
  --orange:#ff6a2b;
  --r-card:14px;
  --r-btn:8px;
  --r-badge:4px;
  --sh-1:0 1px 2px rgba(22,24,26,.04), 0 6px 16px rgba(22,24,26,.05);
  --sh-2:0 2px 6px rgba(22,24,26,.07), 0 14px 32px rgba(22,24,26,.10);
  --sh-3:0 6px 18px rgba(22,24,26,.10), 0 26px 52px rgba(22,24,26,.14);
  --font-cn:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:ui-monospace,"SFMono-Regular","JetBrains Mono",Menlo,Consolas,"Courier New",monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .25s ease,border-color .25s ease;}
a:hover{color:var(--ink-2);}
button{font-family:inherit;}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.015em;line-height:1.2;margin:0;color:var(--ink);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}

.container{max-width:1280px;padding-left:20px;padding-right:20px;margin:0 auto;}
@media (min-width:1440px){.container{max-width:1360px;}}

::selection{background:var(--accent);color:var(--ink);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:4px;
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--ink);
  color:var(--paper);
  font-size:13px;
  letter-spacing:.01em;
  position:relative;
  z-index:60;
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:38px;padding-top:6px;padding-bottom:6px;
}
.topbar-text{
  display:flex;align-items:center;gap:10px;
  overflow:hidden;white-space:nowrap;text-overflow:ellipsis;
  color:rgba(247,245,241,.86);
}
.topbar-text .dot{
  width:6px;height:6px;background:var(--accent);border-radius:50%;flex:0 0 auto;
}
.topbar-text b{color:var(--accent);font-weight:700;}
.topbar-close{
  background:transparent;border:1px solid var(--line-2);color:rgba(247,245,241,.7);
  width:24px;height:24px;border-radius:var(--r-badge);line-height:1;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all .22s ease;
}
.topbar-close:hover{border-color:var(--accent);color:var(--accent);}
.topbar.is-hidden{display:none;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-2);}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:72px;
  transition:min-height .25s ease;
}
.site-header.is-stuck .header-inner{min-height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--ink);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{
  font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--ink);white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:6px;}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-3);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{position:relative;width:240px;}
.nav-search input{
  width:100%;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  padding:0 38px 0 14px;font-size:14.5px;font-family:inherit;
  transition:border-color .22s ease, box-shadow .22s ease;
}
.nav-search input::placeholder{color:#a3a099;}
.nav-search input:focus{
  outline:none;border-color:var(--accent-deep);
  box-shadow:0 0 0 3px rgba(207,242,63,.45);
}
.nav-search .fa{position:absolute;right:13px;top:50%;transform:translateY(-50%);color:#a3a099;font-size:14px;}
.ghost-link{font-size:15px;font-weight:600;color:var(--ink-3);white-space:nowrap;}
.ghost-link:hover{color:var(--ink);}

.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--accent);color:var(--ink);font-weight:700;font-size:15px;
  border:1px solid var(--accent);cursor:pointer;white-space:nowrap;
  transition:background .22s ease,transform .18s ease,box-shadow .22s ease,color .22s ease;
}
.btn-accent:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:var(--ink);box-shadow:0 8px 20px rgba(184,220,34,.32);}
.btn-accent:active{transform:translateY(1px);box-shadow:none;}
.btn-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--ink);color:var(--paper);font-weight:700;font-size:15px;
  border:1px solid var(--ink);cursor:pointer;white-space:nowrap;
  transition:background .22s ease,transform .18s ease,border-color .22s ease;
}
.btn-ink:hover{background:#000;border-color:#000;color:var(--paper);}
.btn-ink:active{transform:translateY(1px);}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:transparent;color:var(--ink);font-weight:600;font-size:15px;
  border:1px solid #cfc8b9;cursor:pointer;white-space:nowrap;
  transition:all .22s ease;
}
.btn-line:hover{border-color:var(--ink);background:var(--ink);color:var(--paper);}
.btn-line:active{transform:translateY(1px);}
.btn-ghost-line{
  display:inline-flex;align-items:center;gap:6px;height:44px;
  font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:2px solid var(--accent);padding:0 2px;
}
.btn-ghost-line:hover{color:var(--ink-2);border-bottom-color:var(--ink);}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-drawer{display:none;border-top:1px solid var(--line);background:var(--paper);}
.nav-drawer-inner{padding:18px 0 26px;display:flex;flex-direction:column;gap:6px;}
.nav-drawer .nav-link{padding:12px 0;font-size:16px;border-bottom:1px solid var(--line);}
.nav-drawer .nav-link::after{display:none;}
.nav-drawer .nav-link.is-active{color:var(--ink);}
.nav-drawer .nav-search{width:100%;margin:14px 0 6px;}
.nav-drawer .btn-accent{width:100%;margin-top:6px;}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{padding:22px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:var(--muted);}
.crumb a{color:var(--muted);font-weight:500;}
.crumb a:hover{color:var(--ink);}
.crumb .sep{color:#c4beb1;}
.crumb .current{color:var(--ink);font-weight:600;}

/* ---------- 页面头 ---------- */
.page-head{padding:26px 0 0;}
.page-head-grid{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:18px;
}
.eyebrow .bar{width:22px;height:2px;background:var(--accent);display:inline-block;}
.page-title{font-size:clamp(30px,4.2vw,50px);font-weight:900;letter-spacing:-.025em;line-height:1.12;}
.page-title em{font-style:normal;color:var(--ink);border-bottom:4px solid var(--accent);padding-bottom:2px;}
.page-lead{margin-top:20px;font-size:17px;color:var(--ink-3);max-width:640px;line-height:1.8;}
.head-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;margin-top:36px;padding-top:26px;border-top:1px solid var(--line);
}
.stat-num{font-family:var(--font-num);font-size:26px;font-weight:700;letter-spacing:-.02em;line-height:1.1;}
.stat-num small{font-size:14px;font-weight:600;margin-left:2px;}
.stat-label{font-size:13px;color:var(--muted);margin-top:6px;}
.head-media{position:relative;}
.head-media .frame{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  aspect-ratio:4/3;box-shadow:var(--sh-2);background:var(--paper-2);
}
.head-media .frame img{width:100%;height:100%;object-fit:cover;}
.head-media::after{
  content:"";position:absolute;inset:auto -14px -14px auto;
  width:120px;height:120px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);
  border-radius:0 0 var(--r-card) 0;pointer-events:none;
}
.head-media .tag-float{
  position:absolute;left:16px;top:16px;background:var(--ink);color:var(--paper);
  font-size:12.5px;font-weight:700;padding:6px 10px;border-radius:var(--r-badge);
  letter-spacing:.04em;
}

/* ---------- 主体布局 ---------- */
.stage-layout{
  display:grid;grid-template-columns:240px minmax(0,1fr);
  gap:56px;padding:80px 0 0;align-items:start;
}
.anchor-nav{position:sticky;top:96px;}
.anchor-title{
  font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin-bottom:14px;
}
.anchor-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);}
.anchor-link{
  position:relative;display:block;padding:10px 0 10px 16px;
  font-size:14.5px;font-weight:600;color:var(--muted);
  transition:color .22s ease,padding-left .22s ease;
}
.anchor-link::before{
  content:"";position:absolute;left:-1px;top:0;bottom:0;width:2px;
  background:transparent;transition:background .22s ease;
}
.anchor-link:hover{color:var(--ink);padding-left:20px;}
.anchor-link.is-active{color:var(--ink);}
.anchor-link.is-active::before{background:var(--accent);}
.anchor-hint{
  margin-top:22px;padding:16px;border-radius:var(--r-card);
  background:var(--paper-2);font-size:13.5px;color:var(--ink-3);line-height:1.7;
}
.anchor-hint b{display:block;color:var(--ink);font-size:14px;margin-bottom:6px;}
.anchor-hint a{font-weight:700;border-bottom:2px solid var(--accent);}

.content-flow{display:flex;flex-direction:column;gap:64px;min-width:0;}

/* ---------- 阶段板块 ---------- */
.stage-block{scroll-margin-top:100px;}
.stage-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:14px;margin-bottom:14px;}
.stage-index{
  font-family:var(--font-num);font-size:13px;font-weight:700;
  color:var(--ink);background:var(--accent);border-radius:var(--r-badge);
  padding:3px 8px;letter-spacing:.04em;
}
.stage-block h2{font-size:clamp(22px,2.6vw,31px);font-weight:800;}
.stage-lead{color:var(--ink-3);max-width:760px;margin-bottom:26px;}
.stage-block h3{font-size:18px;font-weight:700;}

/* 时间线 */
.timeline{position:relative;border-left:1px solid var(--line);margin-left:4px;}
.tl-item{position:relative;padding:0 0 26px 26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-5px;top:7px;width:9px;height:9px;border-radius:50%;
  background:var(--ink);
}
.tl-item.is-now::before{background:var(--orange);box-shadow:0 0 0 0 rgba(255,106,43,.5);animation:pulse 2.4s infinite;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,106,43,.45);}
  70%{box-shadow:0 0 0 12px rgba(255,106,43,0);}
  100%{box-shadow:0 0 0 0 rgba(255,106,43,0);}
}
.tl-time{
  font-family:var(--font-num);font-size:14px;font-weight:700;
  color:var(--ink);letter-spacing:-.01em;
}
.tl-title{font-size:16.5px;font-weight:700;margin:4px 0 4px;}
.tl-desc{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0;}
.badge-ink{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--ink-3);
  border:1px solid #d5cfc2;border-radius:var(--r-badge);padding:2px 8px;
  margin-left:8px;vertical-align:1px;letter-spacing:.02em;
}
.badge-orange{
  display:inline-block;font-size:12.5px;font-weight:700;color:#fff;
  background:var(--orange);border-radius:var(--r-badge);padding:2px 8px;
  margin-left:8px;vertical-align:1px;
}

/* 横向小卡 */
.mini-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:26px;}
.mini-grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.mini-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .28s cubic-bezier(.2,.7,.2,1),box-shadow .28s ease;
  display:flex;flex-direction:column;
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.mini-card-img{aspect-ratio:16/9;overflow:hidden;background:var(--paper-2);}
.mini-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1);}
.mini-card:hover .mini-card-img img{transform:scale(1.045);}
.mini-card-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.mini-card-body h3{font-size:16.5px;font-weight:700;}
.mini-card-body p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.7;}
.mini-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  font-family:var(--font-num);font-size:13px;color:var(--muted);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.mini-meta a{font-family:var(--font-cn);font-weight:700;font-size:13.5px;color:var(--ink);border-bottom:2px solid var(--accent);}
.mini-meta a:hover{border-bottom-color:var(--ink);}

.note-line{
  margin-top:24px;padding:16px 18px;border-radius:var(--r-card);
  background:var(--paper-2);border-left:3px solid var(--accent);
  font-size:14.5px;color:var(--ink-3);
}
.note-line b{color:var(--ink);}

/* ---------- FAQ ---------- */
.faq-section{padding:96px 0 0;scroll-margin-top:80px;}
.section-head{max-width:720px;margin-bottom:34px;}
.section-head .eyebrow{margin-bottom:14px;}
.section-head h2{font-size:clamp(24px,3vw,36px);font-weight:800;}
.section-head p{margin-top:14px;color:var(--ink-3);}
.accordion-flush .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0;
}
.accordion-flush .accordion-button{
  background:transparent;color:var(--ink);font-size:17px;font-weight:700;
  padding:24px 44px 24px 0;box-shadow:none;border-radius:0 !important;
}
.accordion-flush .accordion-button:not(.collapsed){color:var(--ink);background:transparent;}
.accordion-flush .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent);outline-offset:-2px;}
.accordion-flush .accordion-button::after{
  background-image:none;content:"\002B";font-family:var(--font-cn);
  font-size:20px;font-weight:400;color:var(--ink);
  width:28px;height:28px;line-height:26px;text-align:center;position:absolute;right:0;
  transform:none;transition:transform .3s ease;
}
.accordion-flush .accordion-button:not(.collapsed)::after{content:"\2212";transform:none;}
.accordion-flush .accordion-body{
  padding:0 60px 26px 0;color:var(--ink-3);font-size:15.5px;line-height:1.85;background:transparent;
}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:96px;background:var(--ink);color:var(--paper);
  border-radius:var(--r-card);overflow:hidden;position:relative;
}
.cta-inner{
  display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:56px;padding:56px;align-items:center;position:relative;z-index:1;
}
.cta-band h2{color:var(--paper);font-size:clamp(23px,2.8vw,34px);font-weight:800;}
.cta-band p{color:rgba(247,245,241,.72);margin-top:14px;max-width:520px;}
.cta-list{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.cta-list li{display:flex;gap:11px;align-items:flex-start;font-size:15px;color:rgba(247,245,241,.86);}
.cta-list li i{color:var(--accent);font-size:14px;margin-top:4px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:8px;}
.cta-band .btn-line{border-color:rgba(247,245,241,.36);color:var(--paper);}
.cta-band .btn-line:hover{background:var(--paper);color:var(--ink);border-color:var(--paper);}
.cta-panel{
  background:rgba(247,245,241,.06);border:1px solid var(--line-2);
  border-radius:var(--r-card);padding:28px;
}
.cta-panel h3{color:var(--paper);font-size:17px;margin-bottom:16px;}
.cta-panel dl{margin:0;display:grid;gap:14px;}
.cta-panel dt{font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:rgba(247,245,241,.5);}
.cta-panel dd{margin:4px 0 0;font-family:var(--font-num);font-size:19px;font-weight:700;color:var(--paper);}
.cta-panel dd span{font-family:var(--font-cn);font-size:14px;font-weight:500;color:rgba(247,245,241,.7);margin-left:6px;}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;
  border:2px solid rgba(207,242,63,.35);border-radius:50%;pointer-events:none;
}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(247,245,241,.72);margin-top:110px;padding:72px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:44px;padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{background:var(--accent);color:var(--ink);}
.footer-brand strong{color:var(--paper);font-size:18px;font-weight:800;letter-spacing:-.02em;}
.footer-desc{font-size:14.5px;line-height:1.8;max-width:340px;color:rgba(247,245,241,.62);}
.footer-social{display:flex;gap:10px;margin-top:22px;}
.footer-social a{
  width:36px;height:36px;border-radius:var(--r-btn);
  border:1px solid var(--line-2);color:rgba(247,245,241,.7);
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .24s ease;
}
.footer-social a:hover{border-color:var(--accent);color:var(--accent);background:rgba(207,242,63,.08);}
.footer-social svg{width:16px;height:16px;}
.footer-col h4{color:var(--paper);font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.01em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14.5px;color:rgba(247,245,241,.66);}
.footer-links a:hover{color:var(--accent);}
.footer-contact{display:flex;flex-direction:column;gap:14px;font-size:14.5px;color:rgba(247,245,241,.66);}
.footer-contact b{display:block;color:var(--paper);font-size:13px;font-weight:700;letter-spacing:.06em;margin-bottom:3px;}
.footer-contact a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid var(--line-2);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(247,245,241,.5);
}
.footer-bottom .fb-links{display:flex;flex-wrap:wrap;gap:20px;}
.footer-bottom a{color:rgba(247,245,241,.62);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;
  border-radius:var(--r-btn);background:var(--ink);color:var(--accent);
  border:0;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .3s ease;z-index:70;box-shadow:var(--sh-3);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:#000;}

/* ---------- 进入动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .36s cubic-bezier(.2,.7,.2,1),transform .36s cubic-bezier(.2,.7,.2,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .header-inner{gap:20px;}
  .main-nav{gap:20px;}
  .nav-search{width:200px;}
}
@media (max-width:991px){
  .main-nav,.nav-search,.header-actions .ghost-link{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-drawer.show,.nav-drawer.collapsing{display:block;}
  .nav-drawer.collapse:not(.show){display:none;}
  .page-head-grid{grid-template-columns:1fr;gap:36px;}
  .head-media{order:-1;}
  .head-media .frame{aspect-ratio:16/9;}
  .stage-layout{grid-template-columns:1fr;gap:34px;padding-top:60px;}
  .anchor-nav{position:static;top:auto;}
  .anchor-list{
    flex-direction:row;gap:10px;border-left:0;overflow-x:auto;
    padding-bottom:8px;-webkit-overflow-scrolling:touch;
  }
  .anchor-link{
    flex:0 0 auto;padding:8px 14px;border:1px solid var(--line);
    border-radius:var(--r-badge);background:#fff;font-size:14px;
  }
  .anchor-link::before{display:none;}
  .anchor-link:hover{padding-left:14px;}
  .anchor-link.is-active{border-color:var(--ink);background:var(--ink);color:var(--paper);}
  .anchor-hint{display:none;}
  .mini-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:1fr;gap:34px;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .topbar-text{font-size:12.5px;}
  .head-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .mini-grid,.mini-grid.cols-2{grid-template-columns:1fr;}
  .faq-section{padding-top:64px;}
  .cta-band{margin-top:64px;}
  .cta-inner{padding:32px 22px;}
  .site-footer{margin-top:72px;padding-top:52px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px;}
  .accordion-flush .accordion-body{padding-right:16px;}
  .stage-layout{padding-top:48px;}
  .content-flow{gap:52px;}
}
@media (max-width:520px){
  .brand-text{font-size:17px;}
  .page-title{font-size:28px;}
  .page-lead{font-size:16px;}
  .head-stats{grid-template-columns:1fr 1fr;}
  .stat-num{font-size:22px;}
  .to-top{right:14px;bottom:16px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --ink:#141416;
  --ink-soft:#26262b;
  --ink-3:#3a3a41;
  --paper:#f7f5f0;
  --paper-2:#fffdf9;
  --sand:#e7e2d8;
  --sand-2:#f1ede4;
  --lime:#c9f24d;
  --lime-deep:#b6e02f;
  --orange:#ff6a2b;
  --muted:#6f6b63;
  --muted-2:#918c82;
  --line:rgba(20,20,22,.12);
  --line-strong:rgba(20,20,22,.22);
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono","Roboto Mono",Menlo,Consolas,monospace;
  --r-card:14px;
  --r-ctrl:8px;
  --r-badge:4px;
  --sh-1:0 1px 2px rgba(20,20,22,.05),0 6px 18px rgba(20,20,22,.05);
  --sh-2:0 2px 6px rgba(20,20,22,.07),0 16px 34px rgba(20,20,22,.09);
  --sh-3:0 6px 14px rgba(20,20,22,.10),0 26px 54px rgba(20,20,22,.14);
  --header-h:72px;
  --sec-y:112px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease,opacity .22s ease;}
a:hover{color:var(--ink);}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.22;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--lime-deep);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1280px;padding-inline:24px;margin-inline:auto;}
@media (min-width:1440px){.container{max-width:1340px;}}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.section{padding-block:var(--sec-y);}
.section--tight{padding-block:80px;}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none;}
.section-title{font-size:clamp(1.6rem,2.5vw,2.5rem);}
.section-lead{margin-top:16px;color:var(--muted);font-size:1.02rem;max-width:62ch;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:700;letter-spacing:.14em;
  color:var(--ink-soft);text-transform:uppercase;
  padding:6px 12px;border:1px solid var(--line-strong);border-radius:var(--r-badge);
  background:var(--paper-2);
}
.eyebrow::before{content:"";width:6px;height:6px;background:var(--lime);border-radius:1px;}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink);color:var(--paper);font-size:.84rem;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;}
.topbar-text{
  display:flex;align-items:center;gap:10px;min-width:0;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.topbar-text b{color:var(--lime);font-weight:700;}
.topbar-close{
  flex:none;width:26px;height:26px;line-height:1;border:1px solid rgba(255,255,255,.28);
  background:transparent;color:var(--paper);border-radius:var(--r-badge);
  font-size:1rem;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.topbar-close:hover{background:var(--lime);color:var(--ink);border-color:var(--lime);}
.topbar.is-hidden{display:none;}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(247,245,240,.97);}
.header-inner{display:flex;align-items:center;gap:28px;min-height:var(--header-h);transition:min-height .25s ease;}
.site-header.is-scrolled .header-inner{min-height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:34px;height:34px;flex:none;display:grid;place-items:center;
  background:var(--ink);color:var(--lime);border-radius:9px;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:1.12rem;font-weight:800;letter-spacing:-.02em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;margin-inline:auto;}
.nav-link{
  position:relative;padding:10px 14px;font-size:.95rem;font-weight:600;color:var(--ink-soft);
  border-radius:var(--r-ctrl);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .28s cubic-bezier(.2,.75,.3,1);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{background:var(--lime-deep);transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:14px;flex:none;}
.nav-search{position:relative;}
.nav-search input{
  width:236px;height:42px;padding:0 14px 0 36px;font-size:.9rem;
  border:1px solid var(--line-strong);border-radius:var(--r-ctrl);
  background:var(--paper-2);color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:var(--muted-2);}
.nav-search input:focus{outline:none;border-color:var(--lime-deep);box-shadow:0 0 0 3px rgba(201,242,77,.35);}
.nav-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--muted-2);}
.link-login{font-size:.92rem;font-weight:600;color:var(--ink-soft);padding:8px 4px;}
.link-login:hover{color:var(--ink);text-decoration:underline;text-underline-offset:5px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-strong);background:var(--paper-2);
  border-radius:var(--r-ctrl);align-items:center;justify-content:center;color:var(--ink);
}
.nav-toggle:hover{background:var(--sand-2);}
.mobile-nav{display:none;border-top:1px solid var(--line);background:var(--paper);}
.mobile-nav .inner{padding:18px 24px 26px;display:grid;gap:14px;}
.mobile-nav .nav-link{padding:12px 4px;border-bottom:1px solid var(--line);border-radius:0;font-size:1rem;}
.mobile-nav .nav-link::after{display:none;}
.mobile-nav .nav-link.is-active{color:var(--ink);border-bottom-color:var(--lime-deep);}
.mobile-nav .nav-search input{width:100%;}

/* ============ 按钮 ============ */
.btn{
  --btn-bg:var(--ink);--btn-fg:#fff;--btn-bd:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:48px;padding:0 24px;font-size:.95rem;font-weight:600;letter-spacing:.01em;
  background:var(--btn-bg);color:var(--btn-fg);border:1px solid var(--btn-bd);
  border-radius:var(--r-ctrl);cursor:pointer;
  transition:transform .18s ease,background-color .22s ease,color .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn:hover{transform:translateY(-1px);box-shadow:var(--sh-1);color:var(--btn-fg);}
.btn:active{transform:translateY(1px);box-shadow:none;}
.btn-accent{--btn-bg:var(--lime);--btn-fg:var(--ink);--btn-bd:var(--lime);}
.btn-accent:hover{--btn-bg:var(--lime-deep);--btn-bd:var(--lime-deep);color:var(--ink);}
.btn-outline{--btn-bg:transparent;--btn-fg:var(--ink);--btn-bd:var(--line-strong);}
.btn-outline:hover{--btn-bg:var(--ink);--btn-fg:#fff;--btn-bd:var(--ink);}
.btn-ghost{--btn-bg:transparent;--btn-fg:var(--ink);--btn-bd:transparent;padding-inline:6px;min-height:auto;}
.btn-ghost:hover{text-decoration:underline;text-underline-offset:6px;box-shadow:none;transform:none;}
.btn-sm{min-height:40px;padding:0 16px;font-size:.86rem;}
.btn-block{width:100%;}

/* ============ 面包屑 ============ */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.84rem;color:var(--muted-2);}
.crumb a{color:inherit;}
.crumb a:hover{color:var(--lime);}
.crumb .sep{opacity:.55;}
.crumb .now{color:var(--paper);font-weight:600;}

/* ============ KV 深色页头 ============ */
.kv{position:relative;background:var(--ink);color:var(--paper);overflow:hidden;}
.kv-media{position:absolute;inset:0;}
.kv-media img{width:100%;height:100%;object-fit:cover;opacity:.22;filter:grayscale(1) contrast(1.1);}
.kv-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(20,20,22,.96) 0%,rgba(20,20,22,.86) 45%,rgba(20,20,22,.62) 100%);
}
.kv-inner{position:relative;z-index:2;padding-block:96px 84px;display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:end;}
.kv .crumb{margin-bottom:26px;}
.kv .crumb .now{color:var(--paper);}
.kv .eyebrow{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.24);color:var(--paper);}
.kv h1{font-size:clamp(2rem,3.4vw,3.15rem);color:#fff;margin-top:22px;letter-spacing:-.03em;}
.kv-lead{margin-top:22px;color:rgba(247,245,240,.76);font-size:1.04rem;max-width:56ch;}
.kv-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.kv-actions .btn-outline{--btn-fg:#fff;--btn-bd:rgba(255,255,255,.34);}
.kv-actions .btn-outline:hover{--btn-bg:#fff;--btn-fg:var(--ink);--btn-bd:#fff;}
.kv-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);overflow:hidden;}
.stat{background:rgba(20,20,22,.72);padding:24px 22px;}
.stat-num{font-size:1.95rem;font-weight:800;color:var(--lime);line-height:1.1;}
.stat-num small{font-size:.9rem;font-weight:600;margin-left:4px;color:var(--lime);}
.stat-label{margin-top:8px;font-size:.82rem;color:rgba(247,245,240,.66);}
.kv-line{position:relative;z-index:2;height:3px;background:var(--lime);}

/* ============ 分段导航 ============ */
.section-tabs{
  position:sticky;top:var(--header-h);z-index:1020;
  background:rgba(247,245,240,.96);border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(2px);
}
.tabs-inner{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;}
.tabs-inner::-webkit-scrollbar{display:none;}
.tab{
  position:relative;flex:none;padding:18px 18px 16px;font-size:.94rem;font-weight:600;color:var(--muted);
  white-space:nowrap;
}
.tab::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;background:transparent;transition:background .2s ease;}
.tab:hover{color:var(--ink);}
.tab.is-active{color:var(--ink);}
.tab.is-active::after{background:var(--lime-deep);}

/* ============ 图文交错 ============ */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding-block:72px;border-top:1px solid var(--line);}
.feature-row:first-of-type{border-top:0;padding-top:0;}
.feature-row.reverse .feature-media{order:2;}
.feature-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  aspect-ratio:4/3;border:1px solid var(--line-strong);box-shadow:var(--sh-1);
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.75,.3,1);}
.feature-row:hover .feature-media img{transform:scale(1.03);}
.feature-media .tagline{
  position:absolute;left:16px;bottom:16px;padding:7px 12px;border-radius:var(--r-badge);
  background:rgba(20,20,22,.82);color:var(--lime);font-size:.78rem;font-weight:700;letter-spacing:.06em;
}
.feature-body h2{font-size:clamp(1.35rem,2vw,1.85rem);}
.feature-body p{margin-top:18px;color:var(--ink-3);}
.feature-list{margin-top:26px;display:grid;gap:12px;}
.feature-list li{display:flex;gap:12px;align-items:flex-start;font-size:.96rem;color:var(--ink-3);}
.feature-list li::before{
  content:"";flex:none;width:9px;height:9px;margin-top:8px;border-radius:2px;
  background:var(--lime);border:1px solid rgba(20,20,22,.35);
}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px;}
.badge{
  display:inline-flex;align-items:center;padding:5px 11px;font-size:.78rem;font-weight:600;
  border:1px solid var(--line-strong);border-radius:var(--r-badge);color:var(--ink-soft);background:var(--paper-2);
}
.badge--orange{border-color:rgba(255,106,43,.45);color:#b8460f;background:rgba(255,106,43,.08);}
.badge--lime{border-color:var(--lime-deep);background:rgba(201,242,77,.22);color:var(--ink);}

/* ============ 步骤 ============ */
.steps{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin-top:26px;}
.step{background:var(--paper-2);padding:20px 20px 20px 22px;display:grid;grid-template-columns:56px 1fr;gap:16px;align-items:start;}
.step-num{font-family:var(--font-mono);font-size:1.15rem;font-weight:800;color:var(--ink);border-bottom:2px solid var(--lime);padding-bottom:6px;}
.step h3{font-size:1rem;}
.step p{margin-top:6px;font-size:.9rem;color:var(--muted);line-height:1.65;}

/* ============ 权益矩阵 ============ */
.tier-band{background:var(--paper-2);border-block:1px solid var(--line);}
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.tier-card{
  background:var(--paper);border:1px solid var(--line-strong);border-radius:var(--r-card);
  padding:28px 26px;display:flex;flex-direction:column;position:relative;
  transition:transform .25s cubic-bezier(.2,.75,.3,1),box-shadow .25s ease,border-color .25s ease;
}
.tier-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.tier-card.is-featured{background:var(--paper-2);border:2px solid var(--lime-deep);}
.tier-card.is-featured::before{
  content:"报名热度最高";position:absolute;top:-13px;left:26px;
  background:var(--orange);color:#fff;font-size:.74rem;font-weight:700;letter-spacing:.06em;
  padding:4px 10px;border-radius:var(--r-badge);
}
.tier-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;}
.tier-name{font-size:1.06rem;font-weight:800;}
.tier-price{margin-top:14px;display:flex;align-items:flex-end;gap:6px;}
.tier-price .num{font-size:2.1rem;font-weight:800;line-height:1;}
.tier-price span{font-size:.84rem;color:var(--muted);}
.tier-note{margin-top:10px;font-size:.86rem;color:var(--muted);min-height:44px;}
.tier-list{margin-top:22px;padding-top:20px;border-top:1px dashed var(--line-strong);display:grid;gap:11px;}
.tier-item{display:flex;gap:10px;font-size:.9rem;color:var(--ink-3);line-height:1.6;}
.tier-item svg{flex:none;width:16px;height:16px;margin-top:4px;}
.tier-item.off{color:var(--muted-2);}
.tier-item.off svg{color:var(--orange);}
.tier-item.on svg{color:#5d8f12;}
.tier-foot{margin-top:26px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:960px;}
.accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);
}
.accordion-button{
  background:transparent;color:var(--ink);font-weight:700;font-size:1.02rem;
  padding:26px 4px 26px 0;box-shadow:none;border-radius:0;gap:20px;
}
.accordion-button::after{
  background-image:none;content:"+";font-size:1.5rem;font-weight:400;line-height:1;
  width:28px;height:28px;display:grid;place-items:center;color:var(--ink);
  border:1px solid var(--line-strong);border-radius:var(--r-badge);
  transition:transform .25s ease,background .25s ease,color .25s ease;margin-left:auto;
}
.accordion-button:not(.collapsed){background:transparent;color:var(--ink);box-shadow:none;}
.accordion-button:not(.collapsed)::after{content:"–";background:var(--lime);transform:rotate(180deg);}
.accordion-button:hover{color:var(--ink);}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--lime-deep);outline-offset:2px;}
.accordion-body{padding:0 60px 28px 0;color:var(--muted);font-size:.96rem;animation:fadeIn .32s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ============ CTA + 表单 ============ */
.cta-block{background:var(--ink);color:var(--paper);}
.cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:72px;align-items:start;}
.cta-copy h2{color:#fff;font-size:clamp(1.6rem,2.5vw,2.4rem);}
.cta-copy p{margin-top:18px;color:rgba(247,245,240,.72);}
.cta-points{margin-top:30px;display:grid;gap:16px;}
.cta-points li{display:flex;gap:14px;align-items:flex-start;color:rgba(247,245,240,.86);font-size:.95rem;}
.cta-points li b{font-family:var(--font-mono);color:var(--lime);font-weight:700;flex:none;}
.form-card{background:var(--paper-2);border-radius:var(--r-card);padding:34px 32px;color:var(--ink);box-shadow:var(--sh-3);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field.full{grid-column:1/-1;}
.form-label{font-size:.86rem;font-weight:600;color:var(--ink-soft);}
.form-label i{color:var(--orange);font-style:normal;margin-left:3px;}
.form-control,.form-select{
  height:50px;border:1px solid var(--line-strong);border-radius:var(--r-ctrl);
  background:#fff;color:var(--ink);font-size:.94rem;padding:0 14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.form-control{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.6;}
.form-control::placeholder{color:var(--muted-2);}
.form-control:focus,.form-select:focus{
  border-color:var(--lime-deep);box-shadow:0 0 0 3px rgba(201,242,77,.35);outline:none;
}
.form-check{display:flex;gap:10px;align-items:flex-start;font-size:.86rem;color:var(--muted);}
.form-check input{width:18px;height:18px;margin-top:3px;accent-color:#a8cf1f;flex:none;}
.form-hint{margin-top:14px;font-size:.8rem;color:var(--muted-2);line-height:1.6;}
.form-msg{margin-top:14px;font-size:.86rem;font-weight:600;color:#5d8f12;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(247,245,240,.72);padding-top:76px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:56px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);color:var(--lime);}
.footer-brand strong{font-size:1.08rem;font-weight:800;letter-spacing:-.02em;}
.footer-desc{margin-top:18px;font-size:.9rem;line-height:1.8;max-width:38ch;color:rgba(247,245,240,.62);}
.footer-social{display:flex;gap:10px;margin-top:22px;}
.footer-social a{
  width:38px;height:38px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.2);
  border-radius:var(--r-ctrl);color:rgba(247,245,240,.8);
}
.footer-social a:hover{background:var(--lime);color:var(--ink);border-color:var(--lime);}
.footer-social svg{width:16px;height:16px;}
.footer-col h4{color:#fff;font-size:.95rem;letter-spacing:.02em;margin-bottom:20px;}
.footer-links{display:grid;gap:12px;font-size:.9rem;}
.footer-links a{color:rgba(247,245,240,.66);}
.footer-links a:hover{color:var(--lime);}
.footer-contact{display:grid;gap:16px;font-size:.86rem;}
.footer-contact b{display:block;color:rgba(247,245,240,.46);font-weight:600;font-size:.78rem;letter-spacing:.06em;margin-bottom:4px;}
.footer-contact a{color:var(--lime);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding-block:24px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:.82rem;color:rgba(247,245,240,.5);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  width:48px;height:48px;border-radius:12px;border:1px solid var(--ink);
  background:var(--ink);color:var(--lime);display:grid;place-items:center;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--lime);color:var(--ink);}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(14px);}
.reveal.in{opacity:1;transform:none;transition:opacity .36s cubic-bezier(.2,.75,.3,1),transform .36s cubic-bezier(.2,.75,.3,1);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--sec-y:92px;}
  .kv-inner{gap:48px;}
  .feature-row{gap:44px;padding-block:60px;}
  .cta-grid{gap:48px;}
}
@media (max-width:991px){
  :root{--header-h:64px;--sec-y:76px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-nav{display:block;}
  .nav-search{display:none;}
  .link-login{display:none;}
  .kv-inner{grid-template-columns:1fr;padding-block:72px 64px;gap:44px;}
  .kv-stats{max-width:520px;}
  .feature-row{grid-template-columns:1fr;gap:28px;padding-block:52px;}
  .feature-row.reverse .feature-media{order:0;}
  .feature-media{aspect-ratio:16/10;}
  .tier-grid{grid-template-columns:1fr 1fr;}
  .tier-card.is-featured{grid-column:1/-1;}
  .cta-grid{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
}
@media (max-width:767px){
  .container{padding-inline:18px;}
  .topbar-text{font-size:.78rem;}
  .kv-stats{grid-template-columns:1fr 1fr;}
  .stat{padding:18px 16px;}
  .stat-num{font-size:1.6rem;}
  .tier-grid{grid-template-columns:1fr;}
  .tier-card.is-featured{grid-column:auto;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:26px 20px;}
  .accordion-body{padding-right:0;}
  .footer-grid{grid-template-columns:1fr;gap:36px;padding-bottom:44px;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:575px){
  .kv h1{font-size:1.72rem;}
  .kv-stats{grid-template-columns:1fr;max-width:none;}
  .brand-text{font-size:1rem;}
  .section-head--row{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}