/* roulang page: index */
:root{
  --flame:#FF6A2B;
  --flame-deep:#E24E12;
  --flame-soft:#FFE8DC;
  --cyan:#14C8B0;
  --amber:#FFC53D;
  --obsidian:#14110F;
  --obsidian-2:#1F1B18;
  --bg:#F7F5F2;
  --card:#FFFFFF;
  --line:#E9E3DC;
  --ink:#1B1917;
  --ink-2:#5C5651;
  --ink-3:#938B84;
  --grad:linear-gradient(120deg,#FF8A3D 0%,#FF5A1F 48%,#E23E7A 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --shadow-1:0 1px 2px rgba(20,17,15,.04), 0 8px 24px rgba(20,17,15,.06);
  --shadow-2:0 20px 48px rgba(226,78,18,.16);
  --font:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.wrap{padding:0 32px}}
.num{font-variant-numeric:tabular-nums}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.grad-bar{background:var(--grad)}
.sec{padding:64px 0}
@media (min-width:1024px){.sec{padding:104px 0}}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.sec-title{font-size:26px;font-weight:800;letter-spacing:-.01em;line-height:1.35;margin:0;position:relative;padding-left:16px}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:99px;background:var(--grad)}
@media (min-width:1024px){.sec-title{font-size:32px}}
.sec-desc{margin:10px 0 0;color:var(--ink-2);font-size:15px;max-width:680px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--flame-deep)}
.more-link{font-size:14px;font-weight:700;color:var(--flame-deep);display:inline-flex;align-items:center;gap:6px;transition:gap .2s ease}
.more-link:hover{gap:12px;color:var(--flame)}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease,background .25s ease}
.site-header.scrolled{box-shadow:0 8px 28px rgba(20,17,15,.08);background:rgba(255,255,255,.94)}
.nav-bar{display:flex;align-items:center;gap:20px;height:56px}
@media (min-width:1024px){.nav-bar{height:64px;gap:32px}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--grad);display:grid;place-items:center;color:#fff;font-weight:800;font-size:15px;box-shadow:0 6px 16px rgba(226,78,18,.28)}
.brand-text{font-weight:800;font-size:15px;letter-spacing:-.01em;white-space:nowrap}
@media (min-width:1024px){.brand-mark{width:38px;height:38px}.brand-text{font-size:17px}}
.nav-links{display:none;align-items:center;gap:26px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-links a{position:relative;font-size:14.5px;font-weight:600;color:var(--ink-2);padding:6px 0;transition:color .2s ease}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:99px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
.nav-links a:hover{color:var(--flame)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-box{display:none;align-items:center;gap:8px;width:280px;height:40px;padding:0 12px;border:1px solid var(--line);border-radius:12px;background:#fff;transition:border-color .2s ease,box-shadow .2s ease}
@media (min-width:1024px){.search-box{display:flex}}
.search-box:focus-within{border-color:var(--flame);box-shadow:0 0 0 4px rgba(255,106,43,.16)}
.search-box input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--ink)}
.search-box input::placeholder{color:var(--ink-3)}
.kbd{font-size:11px;color:var(--ink-3);border:1px solid var(--line);border-radius:6px;padding:1px 5px;line-height:1.5;background:#FAF8F6}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;font-weight:700;border-radius:999px;transition:transform .2s ease,box-shadow .24s ease,background-position .4s ease,background-color .2s ease,color .2s ease;line-height:1}
.btn-primary{background-image:var(--grad);background-size:160% 160%;color:#fff;padding:0 20px;height:40px;font-size:14px;box-shadow:0 10px 22px rgba(226,78,18,.24)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 18px 34px rgba(226,78,18,.28);background-position:100% 50%}
.btn-primary:active{transform:translateY(1px)}
.btn-lg{height:48px;padding:0 26px;font-size:15px}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line);height:48px;padding:0 24px;font-size:15px}
.btn-ghost:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(20,17,15,.10);border-color:#DCD4CB}
.btn-ghost-dark{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.18);height:48px;padding:0 24px;font-size:15px}
.btn-ghost-dark:hover{background:rgba(255,255,255,.16);transform:translateY(-1px)}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--flame);outline-offset:2px;box-shadow:0 0 0 4px rgba(255,106,43,.18)}
.menu-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink)}
@media (min-width:1024px){.menu-btn{display:none}}

/* drawer */
.drawer{position:fixed;inset:0;z-index:90;pointer-events:none}
.drawer-mask{position:absolute;inset:0;background:rgba(20,17,15,.5);opacity:0;transition:opacity .26s ease}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:86%;max-width:360px;background:#fff;transform:translateX(100%);transition:transform .28s ease;padding:22px;overflow-y:auto;display:flex;flex-direction:column;gap:22px}
.drawer.open{pointer-events:auto}
.drawer.open .drawer-mask{opacity:1}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-group-title{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--ink-3);margin:0 0 10px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-radius:12px;font-weight:600;color:var(--ink-2);transition:background .2s ease,color .2s ease}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--flame-soft);color:var(--flame-deep)}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;color:var(--ink)}

/* ============ hero ============ */
.hero{position:relative;overflow:hidden;background:var(--obsidian);color:#fff;min-height:520px;display:flex;align-items:center;padding:56px 0 72px}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(680px 420px at 12% 8%, rgba(255,106,43,.20), transparent 68%),
  radial-gradient(560px 420px at 88% 82%, rgba(20,200,176,.14), transparent 70%);}
.hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);background-size:22px 22px;opacity:.6}
.hero-inner{position:relative;z-index:2;display:grid;gap:36px;width:100%}
@media (min-width:1024px){.hero-inner{grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.hero-copy{order:1}.hero-visual{order:2}}
@media (max-width:1023px){.hero-visual{order:1}.hero-copy{order:2}}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:#FFD9C4;background:rgba(255,106,43,.16);border:1px solid rgba(255,106,43,.32);border-radius:999px;padding:6px 14px}
.pill-dot{width:6px;height:6px;border-radius:99px;background:var(--cyan);box-shadow:0 0 0 4px rgba(20,200,176,.18)}
.hero h1{margin:18px 0 0;font-size:30px;line-height:1.35;font-weight:800;letter-spacing:-.01em}
@media (min-width:768px){.hero h1{font-size:38px}}
@media (min-width:1024px){.hero h1{font-size:44px}}
.hero-sub{margin:16px 0 0;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.72);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.stat-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:32px}
@media (min-width:640px){.stat-row{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);border-radius:var(--r-md);padding:14px 14px 12px}
.stat b{display:block;font-size:22px;font-weight:800;letter-spacing:-.02em;line-height:1.2}
.stat span{display:block;font-size:12px;color:rgba(255,255,255,.6);margin-top:4px}
.hero-visual{position:relative}
.hero-img-card{border-radius:var(--r-xl);overflow:hidden;border:1px solid rgba(255,255,255,.12);box-shadow:0 30px 70px rgba(0,0,0,.45)}
.hero-img-card img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
.float-card{position:relative;margin:-46px 12px 0;background:rgba(31,27,24,.92);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-lg);padding:18px;box-shadow:0 24px 50px rgba(0,0,0,.45)}
@media (min-width:640px){.float-card{position:absolute;right:-6px;bottom:-26px;margin:0;width:276px}}
.float-card .fc-title{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.72)}
.float-card .fc-title b{font-size:20px;color:#fff;font-weight:800}
.seg{display:flex;gap:5px;margin-top:12px}
.seg i{height:7px;border-radius:99px;background:rgba(255,255,255,.14);flex:1}
.seg i.on{background:var(--grad)}
.seg i.mid{background:rgba(20,200,176,.7)}
.fc-foot{margin-top:10px;font-size:12px;color:rgba(255,255,255,.55)}

/* ============ steps ============ */
.step-row{display:grid;gap:20px;position:relative}
@media (min-width:1024px){.step-row{grid-template-columns:88px 1fr;gap:28px}.step-row + .step-row{margin-top:28px}}
.step-num{width:64px;height:64px;border-radius:20px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;font-weight:800;font-size:20px;color:var(--flame-deep);box-shadow:var(--shadow-1)}
@media (min-width:1024px){.step-num{width:88px;height:88px;font-size:26px;border-radius:26px}}
.step-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-1);display:grid;gap:20px;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
@media (min-width:768px){.step-card{grid-template-columns:1.15fr .85fr;align-items:center;padding:28px}}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#F3D9C8}
.step-card h3{margin:0;font-size:19px;font-weight:800}
.step-card p{margin:10px 0 0;font-size:15px;color:var(--ink-2)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{font-size:12.5px;font-weight:700;color:var(--flame-deep);background:var(--flame-soft);border-radius:999px;padding:5px 12px}
.chip-cyan{color:#0B7C6D;background:rgba(20,200,176,.14)}
.step-card img{border-radius:var(--r-md);aspect-ratio:16/9;object-fit:cover;width:100%}
.step-row.flip .step-card .step-media{order:-1}
@media (min-width:768px){.step-row.flip .step-card{grid-template-columns:.85fr 1.15fr}.step-row.flip .step-copy{order:2}}

/* ============ rewards bento ============ */
.bento{display:grid;gap:18px;grid-template-columns:1fr}
@media (min-width:768px){.bento{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.bento{grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(180px,auto)}}
.reward-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;padding:22px;box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease}
.reward-card:hover{transform:scale(1.02);box-shadow:var(--shadow-2)}
.reward-card .band{position:absolute;left:0;right:0;top:0;height:5px;background:var(--grad);transition:height .22s ease}
.reward-card:hover .band{height:8px}
.reward-card.rare .band{background:linear-gradient(90deg,#FFC53D,#FF8A3D)}
.reward-card.cyan .band{background:linear-gradient(90deg,#14C8B0,#0E9C8A)}
.reward-card.big{grid-column:span 1}
@media (min-width:1024px){.reward-card.big{grid-column:span 2;grid-row:span 2;display:flex;flex-direction:column;justify-content:flex-end;padding:28px}}
.reward-card.big .bg-img{position:absolute;inset:0;object-fit:cover;width:100%;height:100%;opacity:.9}
.reward-card.big .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,17,15,.10) 0%,rgba(20,17,15,.86) 78%)}
.reward-card.big .inner{position:relative;z-index:2;color:#fff}
.reward-card.big h3{color:#fff;font-size:24px}
.reward-card.big p{color:rgba(255,255,255,.76)}
.reward-card h3{margin:12px 0 0;font-size:17.5px;font-weight:800}
.reward-card p{margin:8px 0 0;font-size:14.5px;color:var(--ink-2)}
.badge-num{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:800;color:var(--flame-deep);background:var(--flame-soft);border-radius:999px;padding:4px 11px}
.badge-num.cy{color:#0B7C6D;background:rgba(20,200,176,.14)}
.badge-num.am{color:#8A5A00;background:rgba(255,197,61,.20)}

/* ============ progress + rank ============ */
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);padding:24px}
@media (min-width:1024px){.panel{padding:30px}}
.tri{display:grid;gap:14px;grid-template-columns:1fr}
@media (min-width:768px){.tri{grid-template-columns:repeat(3,1fr)}}
.tri-item{border:1px dashed var(--line);border-radius:var(--r-md);padding:16px;background:#FCFAF8}
.tri-item b{display:block;font-size:15px;font-weight:800;margin-bottom:4px}
.tri-item span{font-size:13.5px;color:var(--ink-2)}
.tri-item.done{border-style:solid;border-color:rgba(20,200,176,.4);background:rgba(20,200,176,.07)}
.tri-item.doing{border-style:solid;border-color:rgba(255,106,43,.4);background:rgba(255,106,43,.07)}
.rank-list{margin-top:8px}
.rank-item{display:flex;align-items:center;gap:14px;padding:13px 4px;border-bottom:1px solid var(--line)}
.rank-item:last-child{border-bottom:0}
.rank-idx{width:30px;height:30px;border-radius:10px;display:grid;place-items:center;font-weight:800;font-size:13.5px;background:#F2EEE9;color:var(--ink-2)}
.rank-item.top1 .rank-idx{background:var(--grad);color:#fff}
.rank-item.top2 .rank-idx{background:rgba(255,197,61,.9);color:#4A3100}
.rank-item.top3 .rank-idx{background:rgba(20,200,176,.85);color:#043F37}
.rank-name{font-size:14.5px;font-weight:600;color:var(--ink)}
.rank-val{margin-left:auto;font-weight:800;font-size:15px;color:var(--flame-deep)}

/* ============ news ============ */
.news-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease;display:flex}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.news-link{display:flex;flex-direction:column;width:100%;padding:0}
.news-thumb{overflow:hidden;background:#F1EDE8}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-3)}
.news-cat{color:var(--flame-deep);background:var(--flame-soft);border-radius:999px;padding:3px 10px;font-weight:700}
.news-title{margin:0;font-size:16.5px;font-weight:800;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{margin:0;font-size:14px;color:var(--ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);padding-top:8px;border-top:1px solid var(--line)}
.news-arrow{color:var(--flame-deep);font-weight:800;transition:transform .2s ease}
.news-card:hover .news-arrow{transform:translateX(4px)}
.empty-state{grid-column:1/-1;text-align:center;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);padding:48px 24px}
.empty-state .icon{width:54px;height:54px;border-radius:18px;background:var(--flame-soft);display:grid;place-items:center;margin:0 auto 14px;color:var(--flame-deep);font-weight:800}
.empty-state p{margin:0 0 18px;color:var(--ink-2);font-size:15px}

/* ============ voices ============ */
.voice-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media (min-width:768px){.voice-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.voice-grid{grid-template-columns:repeat(4,1fr)}}
.voice{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease}
.voice:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.voice p{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.85}
.voice .who{display:flex;align-items:center;gap:10px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.avatar{width:34px;height:34px;border-radius:99px;background:var(--flame-soft);color:var(--flame-deep);display:grid;place-items:center;font-weight:800;font-size:13px}
.who b{font-size:14px;display:block}
.who span{font-size:12.5px;color:var(--ink-3)}
.evidence{display:grid;gap:14px;grid-template-columns:repeat(2,1fr);margin-top:26px}
@media (min-width:768px){.evidence{grid-template-columns:repeat(4,1fr)}}
.evidence div{background:rgba(255,255,255,.7);border:1px solid var(--line);border-radius:var(--r-md);padding:16px;text-align:center}
.evidence b{display:block;font-size:24px;font-weight:800;letter-spacing:-.02em}
.evidence span{font-size:12.5px;color:var(--ink-3)}

/* ============ faq ============ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:#F3D9C8;box-shadow:var(--shadow-1)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:18px 20px;font-size:15.5px;font-weight:700}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";margin-left:auto;font-size:20px;font-weight:700;color:var(--flame-deep);transition:transform .24s ease;line-height:1}
.faq-item[open] summary{color:var(--flame-deep)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{padding:0 20px 20px;border-top:1px solid var(--line)}
.faq-answer p{margin:14px 0 0;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ============ cta ============ */
.cta-box{position:relative;overflow:hidden;background:var(--obsidian);border-radius:var(--r-xl);padding:34px 24px;color:#fff}
@media (min-width:1024px){.cta-box{padding:52px 48px;display:flex;align-items:center;gap:40px;justify-content:space-between}}
.cta-box::before{content:"";position:absolute;inset:0;background:radial-gradient(520px 320px at 88% 20%, rgba(255,106,43,.30), transparent 70%),radial-gradient(420px 300px at 4% 90%, rgba(20,200,176,.18), transparent 72%)}
.cta-box > *{position:relative;z-index:2}
.cta-box h2{margin:0;font-size:24px;font-weight:800;line-height:1.4}
@media (min-width:1024px){.cta-box h2{font-size:30px}}
.cta-box p{margin:12px 0 0;font-size:15px;color:rgba(255,255,255,.72);max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
@media (min-width:1024px){.cta-actions{margin-top:0;flex-shrink:0}}

/* ============ footer ============ */
.site-footer{background:var(--obsidian);color:rgba(255,255,255,.72);margin-top:72px;padding:56px 0 0}
.foot-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.foot-brand .brand-text{color:#fff;font-size:18px}
.foot-brand p{margin:14px 0 0;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.foot-ico{display:flex;gap:10px;margin-top:18px}
.foot-ico span{width:34px;height:34px;border-radius:10px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.10);display:grid;place-items:center;font-size:12px;font-weight:700;color:rgba(255,255,255,.7)}
.foot-title{font-size:13px;font-weight:800;letter-spacing:.1em;color:#fff;margin:0 0 14px}
.foot-list{list-style:none;margin:0;padding:0}
.foot-list li{margin-bottom:10px}
.foot-list a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease}
.foot-list a:hover{color:var(--amber)}
.foot-bottom{margin-top:44px;border-top:1px solid rgba(255,255,255,.10);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}
.to-top{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#fff;border-radius:999px;padding:8px 16px;font-size:13px;font-weight:700;transition:background .2s ease,transform .2s ease}
.to-top:hover{background:rgba(255,106,43,.24);transform:translateY(-1px)}
.mobile-cta{position:fixed;left:12px;right:12px;bottom:12px;z-index:70;display:flex;gap:10px;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:999px;padding:8px;box-shadow:0 16px 40px rgba(20,17,15,.16)}
.mobile-cta .btn{flex:1;height:42px;font-size:14px}
@media (min-width:1024px){.mobile-cta{display:none}}
@media (max-width:1023px){body{padding-bottom:76px}}
@keyframes pulseSoft{0%,100%{opacity:1}50%{opacity:.65}}
.pulse{animation:pulseSoft 2.4s ease-in-out 1}

/* roulang page: article */
:root{
  --brand-1:#FF8A3D; --brand-2:#FF5A1F; --brand-3:#E23E7A;
  --primary:#FF6A2B; --primary-deep:#E24E12; --primary-soft:#FFE8DC;
  --teal:#14C8B0; --teal-soft:#DFF8F4; --amber:#FFC53D;
  --obsidian:#14110F; --obsidian-2:#1F1B18;
  --page:#F7F5F2; --card:#FFFFFF; --line:#E9E3DC;
  --t1:#1B1917; --t2:#5C5651; --t3:#938B84;
  --r-s:10px; --r-m:16px; --r-l:24px; --r-xl:32px;
  --sh:0 1px 2px rgba(20,17,15,.04), 0 8px 24px rgba(20,17,15,.06);
  --sh-hover:0 20px 48px rgba(226,78,18,.16);
  --grad:linear-gradient(120deg,#FF8A3D 0%,#FF5A1F 52%,#E23E7A 100%);
  --wrap:1200px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--page);
  color:var(--t1);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.2em;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px;}
@media(min-width:1024px){.wrap{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(20,17,15,.07);}
.nav-bar{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  color:#fff;font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(226,78,18,.28);
}
.brand-text{font-weight:800;font-size:16px;letter-spacing:-.01em;white-space:nowrap;}
.nav-links{display:none;align-items:center;gap:26px;margin-left:8px;}
.nav-links a{
  position:relative;font-size:14.5px;color:var(--t2);padding:6px 0;
  transition:color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--grad);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-links a:hover{color:var(--primary);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--t1);font-weight:700;}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:none;align-items:center;gap:8px;
  width:280px;height:42px;padding:0 12px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(255,106,43,.16);}
.search-box input{border:0;outline:0;background:transparent;flex:1;font-size:14px;color:var(--t1);}
.search-box input::placeholder{color:var(--t3);}
.kbd{
  font-size:11px;color:var(--t3);border:1px solid var(--line);
  border-radius:6px;padding:1px 5px;background:#FAF8F6;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:12px;border:1px solid transparent;
  font-size:14.5px;font-weight:700;white-space:nowrap;
  transition:transform .18s ease,box-shadow .22s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 22px rgba(226,78,18,.24);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(226,78,18,.3);}
.btn-primary:active{transform:translateY(1px);filter:saturate(.9);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--t1);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px);}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;
  box-shadow:0 0 0 4px rgba(255,106,43,.18);
}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--t1);font-size:17px;
}
.menu-btn:hover{border-color:var(--primary);color:var(--primary);}
@media(min-width:1080px){
  .nav-links{display:flex;}
  .search-box{display:flex;}
  .menu-btn{display:none;}
}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,17,15,.42);opacity:0;pointer-events:none;
  transition:opacity .25s ease;z-index:80;
}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:90;
  background:#fff;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s ease;
  padding:22px 20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-title{font-weight:800;font-size:15px;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:16px;}
.drawer-close:hover{border-color:var(--primary);color:var(--primary);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.drawer-nav a{padding:11px 12px;border-radius:12px;font-size:15px;color:var(--t2);}
.drawer-nav a:hover{background:var(--primary-soft);color:var(--primary-deep);}
.drawer-nav a.active{background:var(--primary-soft);color:var(--primary-deep);font-weight:700;}
.drawer .btn{width:100%;}

/* ---------- article layout ---------- */
.main{padding:28px 0 72px;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12.5px;color:var(--t3);margin-bottom:22px;
}
.crumb a{color:var(--t3);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#C9C2BA;}

.article-shell{
  display:grid;grid-template-columns:minmax(0,1fr);gap:36px;align-items:start;
}
@media(min-width:1024px){
  .article-shell{grid-template-columns:minmax(0,1fr) 310px;gap:44px;}
}
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh);
}
.article-head{padding:26px 24px 22px;}
@media(min-width:768px){.article-head{padding:34px 38px 26px;}}
.cat-badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary-deep);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;
}
.article-head h1{
  margin-top:14px;font-size:26px;line-height:1.42;font-weight:800;letter-spacing:-.01em;
}
@media(min-width:768px){.article-head h1{font-size:33px;line-height:1.34;}}
.meta-row{
  display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:16px;
  font-size:13px;color:var(--t3);
}
.meta-row span{display:inline-flex;align-items:center;gap:6px;}
.meta-dot{width:5px;height:5px;border-radius:50%;background:var(--teal);}

.hero-visual{
  margin-top:22px;border-radius:var(--r-m);overflow:hidden;
  border:1px solid var(--line);background:#F1EDE8;
}
.hero-visual img{width:100%;aspect-ratio:16/9;object-fit:cover;}

.article-body{padding:24px 24px 30px;}
@media(min-width:768px){.article-body{padding:34px 38px 44px;}}
.article-body > * + *{margin-top:18px;}
.article-body p{font-size:16.5px;line-height:1.95;color:#2C2825;}
.article-body h2{
  position:relative;margin-top:38px;padding-left:14px;
  font-size:22px;font-weight:800;line-height:1.5;letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;
  border-radius:4px;background:var(--grad);
}
.article-body h3{margin-top:26px;font-size:18px;font-weight:800;line-height:1.6;color:var(--t1);}
.article-body ul,.article-body ol{padding-left:1.35em;color:#2C2825;}
.article-body li{font-size:16.5px;line-height:1.95;margin-top:8px;}
.article-body li::marker{color:var(--primary);}
.article-body blockquote{
  border-left:4px solid var(--primary);background:#FFF7F2;
  border-radius:0 var(--r-m) var(--r-m) 0;padding:16px 20px;color:var(--t2);
  font-size:15.5px;line-height:1.9;
}
.article-body img{border-radius:var(--r-m);margin:22px auto;}
.article-body table{
  width:100%;border-collapse:collapse;font-size:14.5px;
  border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:#FBF7F3;font-weight:700;color:var(--t1);}
.article-body tbody tr:nth-child(even){background:#FDFBF9;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body pre{
  background:var(--obsidian);color:#F3EDE8;border-radius:12px;
  padding:16px 18px;overflow-x:auto;font-size:13.5px;line-height:1.75;
}
.article-body code{font-size:14px;background:#F4EFEA;border-radius:6px;padding:1px 6px;}
.table-scroll{overflow-x:auto;border-radius:var(--r-m);}

/* right rail */
.rail{display:flex;flex-direction:column;gap:20px;}
@media(min-width:1024px){.rail{position:sticky;top:88px;}}
.rail-card{padding:20px 20px 22px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);box-shadow:var(--sh);}
.rail-title{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:800;letter-spacing:.02em;color:var(--t1);
  padding-bottom:12px;border-bottom:1px dashed var(--line);margin-bottom:14px;
}
.rail-title i{width:6px;height:16px;border-radius:3px;background:var(--grad);display:inline-block;}
.toc-list{display:flex;flex-direction:column;gap:2px;font-size:14px;}
.toc-list a{padding:7px 8px;border-radius:10px;color:var(--t2);}
.toc-list a:hover{background:var(--primary-soft);color:var(--primary-deep);}
.rec-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);}
.rec-item:last-child{border-bottom:0;padding-bottom:0;}
.rec-item img{width:74px;height:56px;border-radius:10px;object-fit:cover;flex:none;border:1px solid var(--line);}
.rec-item h4{font-size:14px;line-height:1.55;font-weight:700;color:var(--t1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-item:hover h4{color:var(--primary);}
.rec-item time{font-size:12px;color:var(--t3);display:block;margin-top:5px;}
.rail-cta{background:var(--obsidian);border-color:rgba(255,255,255,.08);color:#F3EDE8;}
.rail-cta .rail-title{color:#fff;border-bottom-color:rgba(255,255,255,.12);}
.rail-cta p{font-size:13.5px;line-height:1.85;color:#B9B0A8;}
.rail-cta .btn{margin-top:16px;width:100%;}

/* tags + related */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;padding:0 24px 26px;}
@media(min-width:768px){.tag-row{padding:0 38px 34px;}}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;
  border-radius:999px;border:1px solid var(--line);background:#FCFAF8;
  font-size:13px;color:var(--t2);transition:all .18s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary-deep);background:var(--primary-soft);}

.section{margin-top:56px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.section-head h2{font-size:22px;font-weight:800;letter-spacing:-.01em;}
.section-head p{font-size:13.5px;color:var(--t3);margin-top:6px;}
.link-more{font-size:14px;font-weight:700;color:var(--primary);}
.link-more:hover{color:var(--primary-deep);}
.card-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){.card-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .24s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#F3D9C9;}
.post-card .thumb{overflow:hidden;background:#F1EDE8;}
.post-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease;}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card h3{font-size:16.5px;font-weight:800;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover h3{color:var(--primary);}
.post-card p{font-size:14px;line-height:1.8;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--t3);}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--teal-soft);color:#0B7A6C;font-size:12px;font-weight:700;
}

/* empty state */
.empty{
  padding:52px 24px;text-align:center;
}
.empty .ico{
  width:56px;height:56px;margin:0 auto 16px;border-radius:18px;
  background:var(--primary-soft);color:var(--primary-deep);
  display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;
}
.empty h3{font-size:18px;font-weight:800;}
.empty p{margin-top:8px;font-size:14.5px;color:var(--t2);}
.empty .btn{margin-top:18px;}
.skeleton{
  height:14px;border-radius:8px;background:linear-gradient(90deg,#F1EDE8 25%,#F8F5F2 37%,#F1EDE8 63%);
  background-size:400% 100%;animation:sk 1.4s ease infinite;margin-top:12px;
}
@keyframes sk{0%{background-position:100% 50%;}100%{background-position:0 50%;}}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:#F3D9C9;box-shadow:var(--sh);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 20px;background:transparent;border:0;text-align:left;
  font-size:15.5px;font-weight:700;color:var(--t1);
}
.faq-item.open .faq-q{color:var(--primary-deep);}
.faq-icon{flex:none;font-size:18px;color:var(--primary);transition:transform .25s ease;line-height:1;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--t2);}

/* CTA */
.cta-box{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--obsidian);color:#fff;padding:34px 26px;margin-top:64px;
  border:1px solid rgba(255,255,255,.08);
}
.cta-box::before{
  content:"";position:absolute;right:-80px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(255,106,43,.34),rgba(255,106,43,0) 68%);
}
.cta-box::after{
  content:"";position:absolute;left:-60px;bottom:-120px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(20,200,176,.24),rgba(20,200,176,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-direction:column;gap:22px;}
@media(min-width:900px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;padding:12px 14px;}}
.cta-inner h2{font-size:24px;font-weight:800;line-height:1.45;letter-spacing:-.01em;}
.cta-inner p{margin-top:10px;font-size:14.5px;line-height:1.85;color:#B9B0A8;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* footer */
.site-footer{
  margin-top:0;background:var(--obsidian);color:#CFC7C0;padding:56px 0 0;
}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:768px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px;}}
.foot-brand .brand-text{color:#fff;}
.foot-brand p{margin-top:14px;font-size:13.5px;line-height:1.9;color:#9C948D;max-width:300px;}
.foot-ico{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.foot-ico span{
  font-size:12px;padding:4px 11px;border-radius:999px;
  border:1px solid rgba(255,255,255,.12);color:#B9B0A8;
}
.foot-title{font-size:13.5px;font-weight:800;color:#fff;letter-spacing:.04em;margin-bottom:14px;}
.foot-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.foot-list a{font-size:13.5px;color:#9C948D;transition:color .18s ease;}
.foot-list a:hover{color:var(--amber);}
.foot-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.08);
  padding:18px 0 24px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;font-size:12.5px;color:#8A827B;
}
.to-top{color:#B9B0A8;}
.to-top:hover{color:var(--amber);}

/* mobile sticky cta */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;gap:10px;padding:10px 16px 14px;
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
}
.mobile-cta .btn{flex:1;height:44px;}
@media(min-width:1080px){.mobile-cta{display:none;}}
@media(max-width:1079px){body{padding-bottom:70px;}}

/* roulang page: category1 */
:root{
    --brand-1:#FF8A3D; --brand-2:#FF5A1F; --brand-3:#E23E7A;
    --orange:#FF6A2B; --orange-deep:#E24E12; --orange-soft:#FFE8DC;
    --cyan:#14C8B0; --cyan-soft:#DDF7F3; --amber:#FFC53D;
    --ink:#14110F; --ink-2:#1F1B18;
    --bg:#F7F5F2; --card:#FFFFFF; --line:#E9E3DC;
    --t1:#1B1917; --t2:#5C5651; --t3:#938B84;
    --grad:linear-gradient(120deg,#FF8A3D 0%,#FF5A1F 48%,#E23E7A 100%);
    --r-s:10px; --r-m:16px; --r-l:24px; --r-xl:32px; --r-p:999px;
    --sh:0 1px 2px rgba(20,17,15,.04), 0 8px 24px rgba(20,17,15,.06);
    --sh-h:0 20px 48px rgba(226,78,18,.16);
    --wrap:1200px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  .page-body{
    margin:0;background:var(--bg);color:var(--t1);
    font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased;
  }
  .page-body img{max-width:100%;display:block;}
  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
  .wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px;}
  @media (min-width:1024px){ .wrap{padding:0 32px;} }
  h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.35;}
  p{margin:0;}
  a{text-decoration:none;}
  ul{margin:0;padding:0;list-style:none;}
  .sec{padding:64px 0;}
  @media (min-width:1024px){ .sec{padding:96px 0;} }
  .sec-head{max-width:760px;margin-bottom:32px;}
  .sec-head h2{font-size:clamp(22px,3vw,30px);}
  .sec-head p{margin-top:12px;color:var(--t2);font-size:15.5px;}
  .kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--orange-deep);
    background:var(--orange-soft);border-radius:var(--r-p);padding:5px 14px;margin-bottom:14px;}
  .kicker i{width:6px;height:6px;border-radius:50%;background:var(--grad);display:inline-block;}

  /* ---------- 导航 ---------- */
  .site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.88);
    backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .25s;}
  .site-header.is-scrolled{box-shadow:0 10px 30px rgba(20,17,15,.08);}
  .nav-bar{display:flex;align-items:center;gap:20px;height:64px;}
  @media (max-width:767px){ .nav-bar{height:56px;gap:12px;} }
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{width:34px;height:34px;border-radius:12px;background:var(--grad);color:#fff;
    display:grid;place-items:center;font-size:16px;font-weight:800;box-shadow:0 6px 16px rgba(226,78,18,.28);}
  .brand-text{font-size:16px;font-weight:800;color:var(--t1);white-space:nowrap;}
  @media (max-width:520px){ .brand-text{font-size:14.5px;} .brand-mark{width:30px;height:30px;border-radius:10px;font-size:14px;} }
  .nav-links{display:none;align-items:center;gap:26px;}
  @media (min-width:1024px){ .nav-links{display:flex;} }
  .nav-links a{position:relative;font-size:14.5px;color:var(--t2);padding:6px 0;transition:color .2s;}
  .nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
    background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .22s;}
  .nav-links a:hover{color:var(--orange-deep);}
  .nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
  .nav-links a.active{color:var(--t1);font-weight:700;}
  .nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
  .search-box{display:none;align-items:center;gap:8px;height:40px;padding:0 12px;background:#fff;
    border:1px solid var(--line);border-radius:12px;transition:border-color .2s,box-shadow .2s;}
  @media (min-width:768px){ .search-box{display:flex;width:250px;} }
  @media (min-width:1280px){ .search-box{width:300px;} }
  .search-box input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px;color:var(--t1);}
  .search-box input::placeholder{color:var(--t3);}
  .search-box:focus-within{border-color:var(--orange);box-shadow:0 0 0 4px rgba(255,106,43,.18);}
  .kbd{font-size:11px;color:var(--t3);border:1px solid var(--line);border-radius:6px;padding:1px 6px;background:#FBF9F7;}
  .menu-btn{display:grid;place-items:center;width:40px;height:40px;border:1px solid var(--line);background:#fff;
    border-radius:12px;font-size:16px;color:var(--t1);cursor:pointer;transition:.2s;}
  .menu-btn:hover{border-color:var(--orange);color:var(--orange-deep);}
  @media (min-width:1024px){ .menu-btn{display:none;} }

  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
    border-radius:12px;font-size:14.5px;font-weight:700;cursor:pointer;border:1px solid transparent;
    transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;white-space:nowrap;}
  .btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(226,78,18,.24);}
  .btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(226,78,18,.3);}
  .btn-primary:active{transform:translateY(1px);filter:saturate(.92);}
  .btn-ghost{background:#fff;border-color:var(--line);color:var(--t1);}
  .btn-ghost:hover{border-color:var(--orange);color:var(--orange-deep);transform:translateY(-1px);}
  .btn-light{background:#fff;color:var(--ink);}
  .btn-light:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(0,0,0,.28);}
  .btn-line{border-color:rgba(255,255,255,.28);color:#fff;background:rgba(255,255,255,.06);}
  .btn-line:hover{border-color:var(--amber);color:var(--amber);transform:translateY(-1px);}
  .btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px;box-shadow:0 0 0 4px rgba(255,106,43,.18);}
  .btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px;}
  .nav-cta{display:none;}
  @media (min-width:1024px){ .nav-cta{display:inline-flex;} }

  /* ---------- 抽屉 ---------- */
  .drawer{position:fixed;inset:0;z-index:90;pointer-events:none;}
  .drawer-mask{position:absolute;inset:0;background:rgba(20,17,15,.5);opacity:0;transition:opacity .25s;}
  .drawer-panel{position:absolute;top:0;right:0;height:100%;width:min(84vw,340px);background:#fff;
    transform:translateX(100%);transition:transform .28s cubic-bezier(.4,0,.2,1);
    padding:22px 20px 28px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;}
  .drawer.open{pointer-events:auto;}
  .drawer.open .drawer-mask{opacity:1;}
  .drawer.open .drawer-panel{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;}
  .drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:15px;color:var(--t2);}
  .drawer-nav a{display:block;padding:13px 14px;border-radius:12px;font-size:15px;color:var(--t1);font-weight:600;transition:.2s;}
  .drawer-nav a:hover,.drawer-nav a.active{background:var(--orange-soft);color:var(--orange-deep);}
  .drawer-tip{font-size:13px;color:var(--t3);line-height:1.8;}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:56px 0 64px;}
  @media (min-width:1024px){ .hero{padding:84px 0 96px;} }
  .hero::before{content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;
    opacity:.28;}
  .hero::after{content:"";position:absolute;inset:0;
    background:
      radial-gradient(560px 380px at 12% 18%, rgba(255,106,43,.42), transparent 68%),
      radial-gradient(520px 360px at 88% 78%, rgba(20,200,176,.28), transparent 70%),
      linear-gradient(180deg, rgba(20,17,15,.72) 0%, rgba(20,17,15,.94) 100%);}
  .hero .wrap{position:relative;z-index:2;}
  .hero-grid{display:grid;gap:36px;align-items:center;}
  @media (min-width:1024px){ .hero-grid{grid-template-columns:1.06fr .94fr;gap:56px;} }
  .hero-badge{display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:700;
    padding:6px 15px;border-radius:var(--r-p);background:rgba(255,255,255,.1);
    border:1px solid rgba(255,255,255,.16);color:#FFD9C2;margin-bottom:20px;}
  .hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--amber);display:inline-block;}
  .hero h1{font-size:clamp(26px,4.4vw,44px);line-height:1.25;}
  .hero h1 em{font-style:normal;background:linear-gradient(120deg,#FFB37A,#FFC53D 60%,#FF8FA8);
    -webkit-background-clip:text;background-clip:text;color:transparent;}
  .hero-sub{margin-top:18px;max-width:560px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.76);}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
  .hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
  .stat{display:flex;flex-direction:column;gap:2px;padding:12px 18px;border-radius:var(--r-m);
    background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);min-width:132px;}
  .stat b{font-size:20px;font-weight:800;color:#fff;line-height:1.2;}
  .stat b span{font-size:12.5px;font-weight:600;color:rgba(255,255,255,.6);margin-left:3px;}
  .stat em{font-style:normal;font-size:12.5px;color:rgba(255,255,255,.6);}
  .hero-media{position:relative;}
  .hero-media .shot{border-radius:var(--r-xl);overflow:hidden;border:1px solid rgba(255,255,255,.14);
    box-shadow:0 30px 70px rgba(0,0,0,.45);}
  .hero-media .shot img{width:100%;aspect-ratio:16/11;object-fit:cover;}
  .float-card{position:relative;margin-top:-42px;margin-left:18px;width:min(88%,300px);
    background:#fff;color:var(--t1);border-radius:var(--r-m);padding:16px 18px;box-shadow:0 20px 46px rgba(0,0,0,.28);}
  @media (min-width:1024px){ .float-card{position:absolute;left:-26px;bottom:-32px;margin:0;} }
  .float-card p{font-size:12.5px;color:var(--t3);}
  .float-card strong{display:block;font-size:15px;margin-bottom:8px;}
  .bar{height:7px;border-radius:var(--r-p);background:#F0EBE6;overflow:hidden;margin-top:10px;}
  .bar i{display:block;height:100%;border-radius:var(--r-p);background:var(--grad);}
  .bar-row{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--t2);margin-top:10px;}

  /* ---------- 导览胶囊 ---------- */
  .pill-bar{position:relative;margin-top:-26px;z-index:5;}
  .pill-inner{display:flex;gap:10px;overflow-x:auto;padding:14px;background:#fff;border:1px solid var(--line);
    border-radius:var(--r-l);box-shadow:var(--sh);scrollbar-width:none;}
  .pill-inner::-webkit-scrollbar{display:none;}
  .pill{flex:0 0 auto;font-size:13.5px;font-weight:600;padding:8px 16px;border-radius:var(--r-p);
    background:#FBF8F5;border:1px solid var(--line);color:var(--t2);transition:.2s;}
  .pill:hover{background:var(--orange-soft);border-color:#FFD2B8;color:var(--orange-deep);}

  /* ---------- 主体布局 ---------- */
  .layout{display:grid;gap:28px;}
  @media (min-width:1024px){ .layout{grid-template-columns:236px 1fr;gap:56px;} }
  .side{display:none;}
  @media (min-width:1024px){
    .side{display:block;position:sticky;top:88px;align-self:start;}
  }
  .side-box{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:18px;box-shadow:var(--sh);}
  .side-title{font-size:12.5px;font-weight:800;color:var(--t3);letter-spacing:.06em;margin-bottom:10px;}
  .side a{display:block;padding:9px 12px;border-radius:10px;font-size:14px;color:var(--t2);transition:.2s;}
  .side a:hover{background:#FBF6F2;color:var(--orange-deep);}
  .side-note{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--t3);line-height:1.8;}

  .blocks{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:8px 22px 28px;box-shadow:var(--sh);}
  @media (min-width:768px){ .blocks{padding:12px 34px 36px;} }
  .block{padding:34px 0;border-top:1px solid var(--line);}
  .block:first-child{border-top:0;}
  .block h2{font-size:clamp(20px,2.6vw,25px);display:flex;gap:12px;align-items:flex-start;}
  .block h2::before{content:"";flex:0 0 4px;width:4px;height:24px;margin-top:3px;border-radius:3px;background:var(--grad);}
  .block h3{font-size:17px;margin-top:22px;color:var(--t1);}
  .block p{margin-top:14px;color:var(--t2);font-size:15.5px;}
  .block p strong{color:var(--t1);}

  .fig{margin-top:22px;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);}
  .fig img{width:100%;aspect-ratio:16/9;object-fit:cover;}
  .fig figcaption{font-size:13px;color:var(--t3);padding:10px 14px;background:#FBF9F7;text-align:center;}

  .check-list{margin-top:20px;display:grid;gap:12px;}
  .check-list li{display:grid;grid-template-columns:26px 1fr;gap:12px;align-items:start;
    padding:14px 16px;border-radius:var(--r-m);background:#FBF9F7;border:1px solid var(--line);}
  .check-list li span.dot{width:24px;height:24px;border-radius:8px;background:var(--cyan-soft);color:#0E8C7C;
    display:grid;place-items:center;font-size:13px;font-weight:800;}
  .check-list li b{display:block;font-size:15px;}
  .check-list li em{font-style:normal;font-size:13.5px;color:var(--t2);}

  .steps{margin-top:22px;border-top:1px dashed var(--line);}
  .step{display:grid;grid-template-columns:46px 1fr;gap:16px;padding:20px 0;border-bottom:1px dashed var(--line);}
  .step .no{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;font-weight:800;
    font-size:15px;color:var(--orange-deep);background:var(--orange-soft);}
  .step h3{margin:0;font-size:16.5px;}
  .step p{margin-top:8px;font-size:14.8px;}

  .term-grid{display:grid;gap:16px;margin-top:22px;}
  @media (min-width:768px){ .term-grid{grid-template-columns:1fr 1fr;} }
  .term{border:1px solid var(--line);border-radius:var(--r-l);padding:20px;background:#fff;transition:.24s;}
  .term:hover{transform:translateY(-3px);box-shadow:var(--sh-h);border-color:#FFD2B8;}
  .term.wide{background:#FBF9F7;}
  @media (min-width:768px){ .term.wide{grid-column:span 2;} }
  .term h3{margin:0;font-size:16px;display:flex;align-items:center;gap:10px;}
  .term h3 i{width:26px;height:26px;border-radius:9px;background:var(--grad);opacity:.92;display:inline-block;}
  .term p{margin-top:10px;font-size:14.5px;color:var(--t2);}

  .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
  .chip{font-size:13px;font-weight:600;padding:7px 14px;border-radius:var(--r-p);
    background:var(--orange-soft);color:var(--orange-deep);border:1px solid #FFD9C4;}
  .chip.c{background:var(--cyan-soft);color:#0E8C7C;border-color:#BFEDE6;}
  .chip.a{background:#FFF5DC;color:#9A6A05;border-color:#FFE7AF;}

  .self-check{margin-top:20px;display:grid;gap:10px;}
  .self-check li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--t2);
    padding:12px 14px;border-radius:var(--r-s);border:1px dashed var(--line);}
  .self-check li::before{content:"□";color:var(--orange);font-size:16px;line-height:1.6;}

  /* ---------- FAQ ---------- */
  .faq{max-width:820px;margin:0 auto;}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-m);margin-bottom:12px;overflow:hidden;}
  .faq-item summary{cursor:pointer;list-style:none;padding:18px 22px;font-size:15.5px;font-weight:700;
    color:var(--t1);display:flex;align-items:center;justify-content:space-between;gap:16px;transition:color .2s;}
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{content:"+";font-size:20px;font-weight:400;color:var(--orange);transition:transform .24s;}
  .faq-item[open] summary{color:var(--orange-deep);}
  .faq-item[open] summary::after{transform:rotate(45deg);}
  .faq-item .ans{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--t2);}

  /* ---------- CTA ---------- */
  .cta-wrap{padding:0 20px 64px;}
  @media (min-width:1024px){ .cta-wrap{padding:0 32px 96px;} }
  .cta{position:relative;overflow:hidden;max-width:var(--wrap);margin:0 auto;background:var(--ink);
    border-radius:var(--r-xl);padding:36px 26px;color:#fff;display:grid;gap:24px;align-items:center;}
  @media (min-width:900px){ .cta{grid-template-columns:1fr auto;padding:48px 46px;} }
  .cta::after{content:"";position:absolute;top:-40%;right:-10%;width:520px;height:420px;
    background:radial-gradient(closest-side, rgba(255,106,43,.4), transparent 72%);pointer-events:none;}
  .cta h2{position:relative;font-size:clamp(21px,2.6vw,28px);}
  .cta p{position:relative;margin-top:12px;color:rgba(255,255,255,.74);font-size:15px;max-width:620px;}
  .cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:56px 0 24px;}
  .foot-grid{display:grid;gap:32px;}
  @media (min-width:768px){ .foot-grid{grid-template-columns:repeat(2,1fr);} }
  @media (min-width:1024px){ .foot-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;} }
  .site-footer .brand-text{color:#fff;}
  .foot-brand p{margin-top:14px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;}
  .foot-ico{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
  .foot-ico span{font-size:12.5px;padding:5px 12px;border-radius:var(--r-p);
    background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.7);}
  .foot-title{font-size:13px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:.04em;}
  .foot-list li{margin-bottom:9px;}
  .foot-list a{font-size:14px;color:rgba(255,255,255,.62);transition:color .2s;}
  .foot-list a:hover{color:var(--amber);}
  .foot-bottom{margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
    display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);}
  .to-top{color:rgba(255,255,255,.72);font-weight:600;transition:color .2s;}
  .to-top:hover{color:var(--amber);}

  /* ---------- 移动端底部条 ---------- */
  .mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;display:flex;gap:10px;align-items:center;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.94);
    backdrop-filter:blur(12px);border-top:1px solid var(--line);}
  @media (min-width:1024px){ .mobile-bar{display:none;} }
  .mobile-bar .btn{flex:1;height:42px;font-size:14px;}
  @media (max-width:1023px){ .page-body{padding-bottom:70px;} }
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* roulang page: category3 */
:root{
  --flame:#FF6A2B; --flame-deep:#E24E12; --flame-soft:#FFE8DC;
  --teal:#14C8B0; --teal-soft:#DFF7F3; --teal-deep:#0E8C7C;
  --amber:#FFC53D; --amber-soft:#FFF3D6;
  --obsidian:#14110F; --obsidian-2:#1F1B18;
  --bg:#F7F5F2; --card:#FFFFFF; --line:#E9E3DC;
  --t1:#1B1917; --t2:#5C5651; --t3:#938B84;
  --grad:linear-gradient(120deg,#FF8A3D 0%,#FF5A1F 52%,#E23E7A 100%);
  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:32px;
  --sh-1:0 1px 2px rgba(20,17,15,.04), 0 8px 24px rgba(20,17,15,.06);
  --sh-2:0 20px 48px rgba(226,78,18,.16);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.site-body{
  margin:0;padding:0;background:var(--bg);color:var(--t1);
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.9;letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--flame);outline-offset:2px;box-shadow:0 0 0 4px rgba(255,106,43,.18)}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:1024px){ .wrap{padding:0 32px} }

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.84);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(20,17,15,.08);background:rgba(255,255,255,.94)}
.nav-bar{display:flex;align-items:center;gap:20px;height:56px}
@media (min-width:1024px){ .nav-bar{height:64px;gap:24px} }
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);color:#fff;
  font-weight:800;font-size:16px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(226,78,18,.28);letter-spacing:0;
}
@media (min-width:1024px){ .brand-mark{width:36px;height:36px;font-size:17px} }
.brand-text{font-size:16px;font-weight:800;color:var(--t1);letter-spacing:-.01em;white-space:nowrap}
@media (min-width:1024px){ .brand-text{font-size:17px} }
.nav-links{display:none;align-items:center;gap:26px}
@media (min-width:1024px){ .nav-links{display:flex;gap:28px;margin-left:12px} }
.nav-links a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:14.5px;font-weight:600;color:var(--t2);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:var(--flame-deep)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--t1)}
.nav-links a.active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
@media (min-width:1024px){ .nav-right{gap:12px} }
.search-box{
  display:none;align-items:center;gap:8px;height:40px;padding:0 12px;
  border:1px solid var(--line);border-radius:12px;background:#fff;width:270px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
@media (min-width:1024px){ .search-box{display:flex} }
.search-box:focus-within{border-color:var(--flame);box-shadow:0 0 0 4px rgba(255,106,43,.18)}
.search-box input{
  border:0;outline:0;background:transparent;width:100%;
  font-size:14px;color:var(--t1);line-height:1.4;
}
.search-box input::placeholder{color:var(--t3)}
.kbd{
  font-size:11px;line-height:1;color:var(--t3);border:1px solid var(--line);
  background:var(--bg);border-radius:6px;padding:3px 6px;flex:0 0 auto;
  font-variant-numeric:tabular-nums;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:12px;border:1px solid transparent;
  font-size:14.5px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background-image:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(226,78,18,.24)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);filter:saturate(.88)}
.btn-ghost{background:#fff;color:var(--t1);border-color:var(--line)}
.btn-ghost:hover{transform:translateY(-1px);border-color:var(--flame);color:var(--flame-deep);box-shadow:0 12px 28px rgba(20,17,15,.08)}
.btn-light{background:#fff;color:var(--t1)}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 16px 36px rgba(0,0,0,.28)}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.btn-line:hover{transform:translateY(-1px);border-color:#fff;background:rgba(255,255,255,.08)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--t1);font-size:16px;line-height:1;
}
.menu-btn:hover{border-color:var(--flame);color:var(--flame-deep)}
@media (min-width:1024px){ .menu-btn{display:none} }
.nav-quick{display:none;font-size:13.5px;font-weight:600;color:var(--t2)}
@media (min-width:1200px){ .nav-quick{display:inline-block} }
.nav-quick:hover{color:var(--flame-deep)}
.nav-cta{display:none}
@media (min-width:1024px){ .nav-cta{display:inline-flex} }

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,17,15,.42);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:70;
}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:80;
  background:#fff;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:38px;height:38px;border-radius:11px;border:1px solid var(--line);
  background:#fff;color:var(--t1);font-size:16px;line-height:1;
}
.drawer-close:hover{border-color:var(--flame);color:var(--flame-deep)}
.drawer-title{font-size:12.5px;font-weight:700;color:var(--t3);letter-spacing:.08em;margin:14px 0 8px}
.drawer-nav a{
  display:block;padding:13px 14px;border-radius:12px;font-size:15px;font-weight:600;color:var(--t2);
  border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--flame-soft);color:var(--flame-deep)}
.drawer-nav a.active{background:var(--obsidian);color:#fff}
.drawer-cta{margin-top:22px;display:flex;flex-direction:column;gap:10px}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--obsidian);color:#fff;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.24;
}
.hero-glow{
  position:absolute;inset:0;
  background:
    radial-gradient(680px 360px at 10% 14%, rgba(255,106,43,.34), transparent 70%),
    radial-gradient(560px 320px at 90% 78%, rgba(20,200,176,.20), transparent 72%);
}
.hero-inner{position:relative;z-index:2;padding:48px 0 64px}
@media (min-width:1024px){ .hero-inner{padding:72px 0 84px} }
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:rgba(255,255,255,.55)}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.5}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;margin-top:20px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:rgba(255,106,43,.16);color:#FFB98C;border:1px solid rgba(255,106,43,.34);
}
.hero h1{
  margin-top:18px;max-width:900px;
  font-size:clamp(28px,5.2vw,46px);line-height:1.24;font-weight:800;letter-spacing:-.01em;
}
.hero-sub{margin-top:18px;max-width:660px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.76)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.stat{
  display:inline-flex;align-items:baseline;gap:7px;
  padding:10px 16px;border-radius:999px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
}
.stat b{font-size:19px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stat span{font-size:12.5px;color:rgba(255,255,255,.62)}
.pill-nav{display:flex;flex-wrap:wrap;gap:10px;padding:22px 0 0}
.pill-nav a{
  padding:8px 16px;border-radius:999px;font-size:13.5px;font-weight:600;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.86);
}
.pill-nav a:hover{background:rgba(255,106,43,.2);border-color:rgba(255,106,43,.5);color:#fff}

/* ---------- 板块通用 ---------- */
.sec{padding:60px 0}
@media (min-width:1024px){ .sec{padding:96px 0} }
.sec-tight{padding:44px 0}
@media (min-width:1024px){ .sec-tight{padding:64px 0} }
.sec-head{max-width:780px;margin-bottom:32px}
@media (min-width:1024px){ .sec-head{margin-bottom:44px} }
.sec-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(22px,3.4vw,30px);line-height:1.35;font-weight:800;letter-spacing:-.01em;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;
  background:var(--grad);
}
.sec-head p{margin-top:14px;font-size:15.5px;line-height:1.95;color:var(--t2)}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#F3D6C6}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;
  font-size:13px;font-weight:600;background:var(--flame-soft);color:var(--flame-deep);
}
.chip-teal{background:var(--teal-soft);color:var(--teal-deep)}
.chip-amber{background:var(--amber-soft);color:#9A6B00}
.chip-line{background:#fff;color:var(--t2);border:1px solid var(--line)}
.num{font-variant-numeric:tabular-nums}

/* ---------- 双列对照 ---------- */
.compare-grid{display:grid;gap:20px}
@media (min-width:1024px){ .compare-grid{grid-template-columns:1fr 1fr;gap:24px} }
.compare-card{position:relative;overflow:hidden;padding:26px 24px 24px}
@media (min-width:1024px){ .compare-card{padding:32px 30px 30px} }
.compare-card::before{content:"";position:absolute;left:0;right:0;top:0;height:6px}
.compare-good::before{background:linear-gradient(90deg,#14C8B0,#59E3C9)}
.compare-warn::before{background:linear-gradient(90deg,#FF8A3D,#E23E7A)}
.compare-card h3{font-size:19px;font-weight:800;letter-spacing:-.01em;display:flex;align-items:center;gap:10px}
.compare-card .lead{margin-top:10px;font-size:14.5px;color:var(--t2);line-height:1.9}
.compare-list{margin-top:20px;border-top:1px solid var(--line)}
.compare-list li{
  display:flex;gap:12px;padding:15px 0;border-bottom:1px solid var(--line);
  font-size:14.5px;line-height:1.85;color:var(--t2);
}
.compare-list li:last-child{border-bottom:0;padding-bottom:0}
.mark{
  flex:0 0 auto;width:22px;height:22px;border-radius:8px;margin-top:4px;
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;color:#fff;
}
.mark-good{background:var(--teal)}
.mark-warn{background:var(--flame)}
.compare-list b{color:var(--t1);font-weight:700}

/* ---------- 表格速查 ---------- */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow-x:auto;-webkit-overflow-scrolling:touch;
}
.data-table{width:100%;min-width:780px;border-collapse:collapse;font-size:14.5px}
.data-table thead th{
  background:#FBF8F4;color:var(--t2);text-align:left;font-size:13px;font-weight:700;
  letter-spacing:.04em;padding:14px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.data-table tbody td{
  padding:16px 18px;border-bottom:1px solid var(--line);
  color:var(--t2);line-height:1.8;vertical-align:top;
}
.data-table tbody tr:nth-child(even){background:#FCFAF8}
.data-table tbody tr:hover{background:var(--flame-soft)}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table td:first-child{color:var(--t1);font-weight:700}
.cell-time{color:var(--flame-deep);font-weight:700;white-space:nowrap;font-variant-numeric:tabular-nums}
.table-note{margin-top:14px;font-size:13px;color:var(--t3)}

/* ---------- 设置清单 ---------- */
.step-grid{display:grid;gap:18px}
@media (min-width:768px){ .step-grid{grid-template-columns:1fr 1fr;gap:20px} }
@media (min-width:1200px){ .step-grid{grid-template-columns:repeat(4,1fr);gap:22px} }
.step-card{padding:24px 22px;display:flex;flex-direction:column;gap:12px}
.step-num{
  align-self:flex-start;padding:4px 12px;border-radius:999px;
  background-image:var(--grad);color:#fff;font-size:12.5px;font-weight:800;letter-spacing:.04em;
}
.step-card h3{font-size:17px;font-weight:800;letter-spacing:-.01em}
.step-card p{font-size:14px;line-height:1.85;color:var(--t2)}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}

/* ---------- 图文自查 ---------- */
.split{display:grid;gap:28px;align-items:center}
@media (min-width:1024px){ .split{grid-template-columns:1.05fr 1fr;gap:48px} }
.media-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);background:#fff;
}
.media-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.media-card:hover img{transform:scale(1.03)}
.media-tag{
  position:absolute;left:16px;bottom:16px;padding:7px 14px;border-radius:999px;
  background:rgba(20,17,15,.72);color:#fff;font-size:12.5px;font-weight:600;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.check-list{margin-top:22px;border-top:1px solid var(--line)}
.check-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0}
.dot{
  flex:0 0 auto;width:26px;height:26px;border-radius:9px;margin-top:4px;
  background:var(--flame-soft);color:var(--flame-deep);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;
}
.check-list h3{font-size:15.5px;font-weight:700;margin:0 0 4px}
.check-list p{font-size:14px;line-height:1.85;color:var(--t2)}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* ---------- 反馈 ---------- */
.voice-grid{display:grid;gap:18px}
@media (min-width:768px){ .voice-grid{grid-template-columns:1fr 1fr} }
@media (min-width:1024px){ .voice-grid{grid-template-columns:repeat(3,1fr);gap:22px} }
.voice-card{padding:24px 22px;display:flex;flex-direction:column;gap:16px}
.voice-quote{font-size:14.5px;line-height:1.9;color:var(--t2)}
.voice-meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.voice-avatar{
  width:34px;height:34px;border-radius:11px;background:var(--obsidian);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}
.voice-meta span{font-size:13px;color:var(--t3)}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;text-align:left;
  font-size:15.5px;font-weight:700;color:var(--t1);line-height:1.7;
  transition:color .2s ease,background .2s ease;
}
.faq-q:hover{color:var(--flame-deep);background:#FDFBF9}
.faq-item.open .faq-q{color:var(--flame-deep)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:9px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-style:normal;font-weight:700;
  color:var(--t2);transition:transform .25s ease,color .25s ease,border-color .25s ease,background .25s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);color:#fff;border-color:transparent;background-image:var(--grad)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--t2)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--obsidian);color:#fff;
  padding:38px 26px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
}
@media (min-width:1024px){ .cta-band{padding:52px 48px} }
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(520px 260px at 8% 20%, rgba(255,106,43,.34), transparent 70%),
    radial-gradient(460px 240px at 92% 80%, rgba(20,200,176,.18), transparent 72%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,3.4vw,28px);font-weight:800;letter-spacing:-.01em;line-height:1.35}
.cta-band p{margin-top:12px;max-width:560px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.74)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--obsidian);color:rgba(255,255,255,.72);padding:56px 0 24px;margin-top:0}
.foot-grid{display:grid;gap:32px}
@media (min-width:768px){ .foot-grid{grid-template-columns:1fr 1fr;gap:36px} }
@media (min-width:1024px){ .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px} }
.foot-brand .brand-text{color:#fff}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:340px}
.foot-ico{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.foot-ico span{
  padding:6px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.78);
}
.foot-title{font-size:13px;font-weight:800;color:#fff;letter-spacing:.08em;margin-bottom:14px}
.foot-list li{margin-bottom:10px}
.foot-list a{font-size:14px;color:rgba(255,255,255,.68)}
.foot-list a:hover{color:var(--amber)}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
.to-top{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#fff;font-size:13px;font-weight:600}
.to-top:hover{background:var(--amber);border-color:var(--amber);color:var(--obsidian)}

/* ---------- 移动端固定条 ---------- */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  display:flex;gap:10px;padding:12px 16px calc(12px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.95);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
}
.mobile-cta .btn{flex:1 1 0;height:44px;padding:0 12px}
@media (min-width:769px){ .mobile-cta{display:none} }
@media (max-width:768px){ body.site-body{padding-bottom:78px} }

/* 入场动画 */
@keyframes riseIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.rise{animation:riseIn .5s ease both}
.rise-2{animation-delay:.08s}
.rise-3{animation-delay:.16s}
@media (prefers-reduced-motion:reduce){
  .rise,.rise-2,.rise-3{animation:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --brand-grad: linear-gradient(120deg,#FF8A3D 0%,#FF5A1F 52%,#E23E7A 100%);
  --brand: #FF6A2B;
  --brand-deep: #E24E12;
  --brand-soft: #FFE8DC;
  --cyan: #14C8B0;
  --amber: #FFC53D;
  --obsidian: #14110F;
  --obsidian-2: #1F1B18;
  --bg: #F7F5F2;
  --card: #FFFFFF;
  --line: #E9E3DC;
  --text: #1B1917;
  --text-2: #5C5651;
  --text-3: #938B84;
  --r-s: 10px;
  --r-m: 16px;
  --r-l: 24px;
  --r-xl: 32px;
  --shadow-1: 0 1px 2px rgba(20,17,15,.04), 0 8px 24px rgba(20,17,15,.06);
  --shadow-2: 0 20px 48px rgba(226,78,18,.16);
}
*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
button{ font: inherit; cursor: pointer; }
input{ font: inherit; }
ul{ list-style: none; margin: 0; padding: 0; }
h1,h2,h3,h4{ margin: 0; font-weight: 800; letter-spacing: -.01em; line-height: 1.35; }
p{ margin: 0; }
.num{ font-variant-numeric: tabular-nums; }
.wrap{ width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
@media (min-width:1024px){ .wrap{ padding: 0 32px; } }
.grad-text{ background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ============ 顶部导航 ============ */
.site-header{
  position: sticky; top: 0; z-index: 90;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s ease, background .25s ease;
}
.site-header.is-scrolled{ box-shadow: 0 8px 28px rgba(20,17,15,.08); background: rgba(255,255,255,.94); }
.nav-bar{ display: flex; align-items: center; gap: 22px; height: 64px; }
.brand{ display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark{
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--brand-grad); color: #fff;
  display: grid; place-items: center;
  font-weight: 800; font-size: 17px;
  box-shadow: 0 6px 16px rgba(226,78,18,.28);
}
.brand-text{ font-weight: 800; font-size: 16.5px; letter-spacing: -.01em; white-space: nowrap; }
.nav-links{ display: none; align-items: center; gap: 26px; margin-left: 8px; }
.nav-links a{
  position: relative; font-size: 14.5px; color: var(--text-2); font-weight: 600;
  padding: 6px 0; transition: color .2s ease; white-space: nowrap;
}
.nav-links a::after{
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--brand-grad); border-radius: 2px; transform: scaleX(0);
  transform-origin: left; transition: transform .24s ease;
}
.nav-links a:hover{ color: var(--brand); }
.nav-links a:hover::after{ transform: scaleX(1); }
.nav-links a.active{ color: var(--brand); }
.nav-links a.active::after{ transform: scaleX(1); }
.nav-right{ display: flex; align-items: center; gap: 12px; margin-left: auto; }
.search-box{
  display: none; align-items: center; gap: 8px;
  width: 280px; height: 40px; padding: 0 12px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-m);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.search-box:focus-within{
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(255,106,43,.16);
}
.search-box input{
  flex: 1; border: 0; outline: 0; background: transparent;
  font-size: 14px; color: var(--text); min-width: 0;
}
.search-box input::placeholder{ color: var(--text-3); }
.kbd{
  font-size: 11px; color: var(--text-3); border: 1px solid var(--line);
  border-radius: 6px; padding: 1px 6px; background: #FAF8F6; white-space: nowrap;
}
.btn{
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent; border-radius: var(--r-m);
  padding: 11px 20px; font-size: 14.5px; font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn-primary{
  background: var(--brand-grad); color: #fff;
  box-shadow: 0 10px 24px rgba(226,78,18,.24);
}
.btn-primary:hover{ transform: translateY(-1px); box-shadow: var(--shadow-2); }
.btn-primary:active{ transform: translateY(1px); filter: saturate(.9); }
.btn-ghost{
  background: #fff; color: var(--text); border-color: var(--line);
}
.btn-ghost:hover{ transform: translateY(-1px); border-color: var(--brand); color: var(--brand); box-shadow: var(--shadow-1); }
.btn-ghost:active{ transform: translateY(1px); }
.btn-dark{
  background: var(--obsidian-2); color: #fff; border-color: rgba(255,255,255,.12);
}
.btn-dark:hover{ transform: translateY(-1px); background: #2A2420; }
.btn:focus-visible, .nav-links a:focus-visible, .foot-list a:focus-visible{
  outline: 2px solid var(--brand); outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(255,106,43,.18);
}
.menu-btn{
  display: inline-grid; place-items: center;
  width: 40px; height: 40px; border-radius: 12px;
  background: #fff; border: 1px solid var(--line); color: var(--text);
  font-size: 17px; transition: border-color .2s ease, color .2s ease;
}
.menu-btn:hover{ border-color: var(--brand); color: var(--brand); }
@media (min-width:768px){ .search-box{ display: flex; } }
@media (min-width:1024px){
  .nav-links{ display: flex; }
  .menu-btn{ display: none; }
  .search-box{ width: 300px; }
}
@media (max-width:1023px){
  .nav-bar{ height: 56px; }
  .brand-text{ font-size: 15px; }
  .nav-right .btn-primary{ display: none; }
}

/* 移动抽屉 */
.drawer-mask{
  position: fixed; inset: 0; background: rgba(20,17,15,.45);
  opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s ease; z-index: 98;
}
.drawer-mask.open{ opacity: 1; visibility: visible; }
.drawer{
  position: fixed; top: 0; right: 0; bottom: 0; width: min(84vw, 340px);
  background: #fff; z-index: 99; transform: translateX(100%);
  transition: transform .28s cubic-bezier(.2,.7,.3,1);
  padding: 20px; overflow-y: auto;
  box-shadow: -20px 0 48px rgba(20,17,15,.16);
  display: flex; flex-direction: column; gap: 18px;
}
.drawer.open{ transform: translateX(0); }
.drawer-head{ display: flex; align-items: center; justify-content: space-between; }
.drawer-close{
  width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--line);
  background: #fff; color: var(--text-2);
}
.drawer-close:hover{ color: var(--brand); border-color: var(--brand); }
.drawer-title{ font-size: 12px; color: var(--text-3); letter-spacing: .06em; margin: 6px 0 -6px; }
.drawer-link{
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 13px 14px; border-radius: var(--r-m);
  border: 1px solid var(--line); background: #fff;
  font-weight: 700; font-size: 14.5px; color: var(--text);
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}
.drawer-link:hover{ border-color: var(--brand); color: var(--brand); background: #FFF8F4; }
.drawer-link.active{ background: var(--brand-soft); border-color: rgba(255,106,43,.35); color: var(--brand-deep); }
.drawer-link span.tip{ font-size: 12px; font-weight: 600; color: var(--text-3); }
.drawer .btn{ width: 100%; }

/* ============ Hero ============ */
.hero{
  position: relative; overflow: hidden;
  background-color: var(--obsidian);
  background-image:
    radial-gradient(720px 420px at 12% 18%, rgba(255,106,43,.18), transparent 62%),
    radial-gradient(620px 380px at 88% 78%, rgba(20,200,176,.12), transparent 62%),
    linear-gradient(180deg, rgba(20,17,15,.62), rgba(20,17,15,.9)),
    url("/assets/images/backpic/back-2.png");
  background-size: auto, auto, auto, cover;
  background-position: center, center, center, center;
  color: #fff;
}
.hero::after{
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 22px 22px; opacity: .5; pointer-events: none;
}
.hero-inner{
  position: relative; z-index: 2;
  padding: 64px 0 72px;
  display: grid; gap: 36px;
}
@media (min-width:1024px){
  .hero-inner{ grid-template-columns: minmax(0,1.05fr) minmax(0,.95fr); align-items: center; padding: 92px 0 96px; gap: 52px; }
}
.hero-badge{
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px; border-radius: 999px;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14);
  font-size: 13px; color: rgba(255,255,255,.86); font-weight: 600;
  backdrop-filter: blur(6px);
}
.hero-badge i{
  width: 8px; height: 8px; border-radius: 50%; background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(20,200,176,.18); display: inline-block;
}
.hero h1{
  margin: 20px 0 0; font-size: 30px; line-height: 1.28; color: #fff;
}
@media (min-width:768px){ .hero h1{ font-size: 40px; } }
@media (min-width:1024px){ .hero h1{ font-size: 46px; } }
.hero-sub{
  margin-top: 18px; font-size: 16px; line-height: 1.9;
  color: rgba(255,255,255,.76); max-width: 560px;
}
.hero-actions{ display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn-on-dark{
  background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.18);
}
.btn-on-dark:hover{ transform: translateY(-1px); background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.3); }
.badge-row{ display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.badge-pill{
  display: inline-flex; align-items: baseline; gap: 6px;
  padding: 9px 14px; border-radius: 999px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  font-size: 13px; color: rgba(255,255,255,.72);
}
.badge-pill b{ font-size: 17px; color: #fff; font-variant-numeric: tabular-nums; }
.badge-pill em{ font-style: normal; font-size: 12px; color: var(--amber); font-weight: 700; }

.hero-visual{ position: relative; }
.hero-shot{
  border-radius: var(--r-xl); overflow: hidden;
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 30px 70px rgba(0,0,0,.4);
  aspect-ratio: 16 / 11; background: #221D1A;
}
.hero-shot img{ width: 100%; height: 100%; object-fit: cover; }
.float-card{
  position: absolute; left: 14px; bottom: -22px;
  width: 240px; padding: 16px 18px;
  border-radius: var(--r-l); background: #FFFFFF; color: var(--text);
  box-shadow: 0 24px 56px rgba(0,0,0,.3);
  border: 1px solid var(--line);
}
.float-card .fc-title{ font-size: 13px; color: var(--text-3); font-weight: 600; }
.float-card .fc-val{ font-size: 26px; font-weight: 800; font-variant-numeric: tabular-nums; margin-top: 2px; }
.float-card .fc-val small{ font-size: 13px; color: var(--text-3); font-weight: 600; margin-left: 4px; }
.seg-bar{ margin-top: 12px; display: flex; gap: 5px; }
.seg-bar span{ height: 7px; border-radius: 999px; flex: 1; background: var(--line); }
.seg-bar span.on{ background: var(--brand-grad); }
.seg-bar span.on-2{ background: var(--cyan); }

/* ============ 分类导览 ============ */
.guide-bar{
  background: #fff; border-bottom: 1px solid var(--line);
  position: sticky; top: 64px; z-index: 60;
}
@media (max-width:1023px){ .guide-bar{ top: 56px; } }
.guide-inner{
  display: flex; gap: 10px; overflow-x: auto; padding: 14px 0;
  scrollbar-width: thin;
}
.guide-inner::-webkit-scrollbar{ height: 4px; }
.guide-inner::-webkit-scrollbar-thumb{ background: #E2DAD2; border-radius: 4px; }
.chip{
  display: inline-flex; align-items: center; gap: 7px; flex-shrink: 0;
  padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--line); background: #fff;
  font-size: 13.5px; font-weight: 700; color: var(--text-2);
  transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
}
.chip:hover{ color: var(--brand); border-color: rgba(255,106,43,.4); background: #FFF8F4; transform: translateY(-1px); }
.chip.cur{ background: var(--brand-soft); border-color: rgba(255,106,43,.35); color: var(--brand-deep); }

/* ============ 通用板块 ============ */
.section{ padding: 64px 0; }
@media (min-width:1024px){ .section{ padding: 96px 0; } }
.section-head{ max-width: 720px; }
.eyebrow{
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 800; letter-spacing: .08em;
  color: var(--brand-deep); text-transform: uppercase;
}
.eyebrow::before{ content: ""; width: 22px; height: 3px; border-radius: 3px; background: var(--brand-grad); }
.section-head h2{
  margin-top: 14px; font-size: 25px; line-height: 1.35;
}
@media (min-width:768px){ .section-head h2{ font-size: 32px; } }
.section-head p{ margin-top: 14px; color: var(--text-2); font-size: 15.5px; }
.card{
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-l);
  box-shadow: var(--shadow-1);
  transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-2); border-color: rgba(255,106,43,.28); }
.tag{
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  background: #FAF8F6; border: 1px solid var(--line);
  font-size: 12px; font-weight: 700; color: var(--text-2);
}
.tag-cyan{ background: rgba(20,200,176,.1); border-color: rgba(20,200,176,.28); color: #0E8E7C; }
.tag-amber{ background: rgba(255,197,61,.16); border-color: rgba(255,197,61,.4); color: #96690A; }
.tag-flame{ background: var(--brand-soft); border-color: rgba(255,106,43,.3); color: var(--brand-deep); }
.mini-num{ font-variant-numeric: tabular-nums; font-weight: 800; }

/* ============ 时间轴 ============ */
.tl{ position: relative; margin-top: 44px; }
.tl-item{ position: relative; padding-left: 54px; padding-bottom: 26px; }
.tl-item:last-child{ padding-bottom: 0; }
.tl-item::before{
  content: ""; position: absolute; left: 15px; top: 30px; bottom: 0; width: 2px;
  background: linear-gradient(180deg, rgba(255,106,43,.45), rgba(233,227,220,.9));
}
.tl-item:last-child::before{ display: none; }
.tl-dot{
  position: absolute; left: 0; top: 4px;
  width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center;
  background: #fff; border: 2px solid rgba(255,106,43,.35);
  color: var(--brand-deep); font-size: 13px; font-weight: 800;
  font-variant-numeric: tabular-nums;
  box-shadow: 0 6px 16px rgba(226,78,18,.14);
}
.tl-item.key .tl-dot{ background: var(--brand-grad); border-color: transparent; color: #fff; }
.tl-card{
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-l);
  padding: 22px; box-shadow: var(--shadow-1);
  transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.tl-card:hover{ transform: translateY(-3px); box-shadow: var(--shadow-2); border-color: rgba(255,106,43,.28); }
.tl-top{ display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.tl-time{
  font-size: 13px; font-weight: 800; color: var(--brand-deep);
  background: var(--brand-soft); border-radius: 999px; padding: 4px 12px;
  font-variant-numeric: tabular-nums;
}
.tl-card h3{ font-size: 18px; margin-top: 12px; }
.tl-card p{ margin-top: 10px; font-size: 15px; color: var(--text-2); }
.chips{ display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tl-media{
  margin-top: 16px; border-radius: var(--r-m); overflow: hidden;
  aspect-ratio: 16 / 7; background: #F1EDE8;
}
.tl-media img{ width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.tl-card:hover .tl-media img{ transform: scale(1.03); }

/* ============ 奖励档位 ============ */
.tier-grid{ display: grid; gap: 20px; margin-top: 44px; grid-template-columns: 1fr; }
@media (min-width:768px){ .tier-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (min-width:1024px){ .tier-grid{ grid-template-columns: repeat(4, minmax(0,1fr)); } }
.tier-card{
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-l);
  padding: 26px 22px 22px; box-shadow: var(--shadow-1);
  transition: transform .24s ease, box-shadow .24s ease;
  display: flex; flex-direction: column;
}
.tier-card::before{
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 6px;
  background: var(--band, var(--brand-grad));
  transition: transform .24s ease;
}
.tier-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-2); }
.tier-card:hover::before{ transform: translateY(2px); }
.tier-name{ font-size: 18px; font-weight: 800; }
.tier-cond{ margin-top: 8px; font-size: 13.5px; color: var(--text-3); font-weight: 600; }
.tier-qty{
  margin-top: 16px; display: inline-flex; align-items: center; gap: 6px;
  align-self: flex-start;
  padding: 6px 12px; border-radius: 999px;
  background: #FAF8F6; border: 1px solid var(--line);
  font-size: 12.5px; font-weight: 800; color: var(--text-2);
  font-variant-numeric: tabular-nums;
}
.tier-list{ margin-top: 18px; display: grid; gap: 10px; }
.tier-list li{
  display: flex; align-items: flex-start; gap: 9px;
  font-size: 14px; color: var(--text-2);
}
.tier-list li::before{
  content: ""; flex-shrink: 0; width: 6px; height: 6px; border-radius: 50%;
  margin-top: 11px; background: var(--brand-grad);
}
.tier-foot{
  margin-top: auto; padding-top: 18px; border-top: 1px dashed var(--line);
  font-size: 12.5px; color: var(--text-3);
}

/* ============ 进度与榜单 ============ */
.progress-panel{
  display: grid; gap: 24px; margin-top: 40px;
}
@media (min-width:1024px){ .progress-panel{ grid-template-columns: minmax(0,1.1fr) minmax(0,.9fr); } }
.progress-card{
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-l);
  padding: 26px; box-shadow: var(--shadow-1);
}
.legend{ display: flex; flex-wrap: wrap; gap: 16px; margin-top: 6px; }
.legend span{ display: inline-flex; align-items: center; gap: 7px; font-size: 13px; color: var(--text-2); }
.legend i{ width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.track{ display: flex; gap: 6px; margin-top: 20px; }
.track div{ height: 14px; border-radius: 999px; flex: 1; background: #F1EDE8; }
.track div.done{ background: var(--brand-grad); }
.track div.doing{ background: var(--cyan); box-shadow: 0 0 0 4px rgba(20,200,176,.14); }
.pct{
  margin-top: 18px; display: flex; align-items: baseline; gap: 10px;
  font-variant-numeric: tabular-nums;
}
.pct b{ font-size: 30px; font-weight: 800; }
.pct small{ font-size: 13px; color: var(--text-3); font-weight: 600; }
.rank-list{ margin-top: 6px; display: grid; gap: 10px; }
.rank-item{
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: var(--r-m);
  background: #FAF8F6; border: 1px solid var(--line);
  transition: transform .2s ease, background .2s ease;
}
.rank-item:hover{ transform: translateX(3px); background: #FFF8F4; }
.rank-no{
  width: 28px; height: 28px; border-radius: 9px; flex-shrink: 0;
  display: grid; place-items: center; font-size: 13px; font-weight: 800;
  background: #fff; border: 1px solid var(--line); color: var(--text-2);
  font-variant-numeric: tabular-nums;
}
.rank-item.r1 .rank-no{ background: var(--brand-grad); color: #fff; border-color: transparent; }
.rank-item.r2 .rank-no{ background: rgba(255,106,43,.18); color: var(--brand-deep); border-color: rgba(255,106,43,.3); }
.rank-item.r3 .rank-no{ background: rgba(20,200,176,.16); color: #0E8E7C; border-color: rgba(20,200,176,.3); }
.rank-name{ flex: 1; font-size: 14.5px; font-weight: 700; color: var(--text); }
.rank-val{ font-size: 14px; font-weight: 800; color: var(--text-2); font-variant-numeric: tabular-nums; }

/* ============ 参与条件 ============ */
.cond-grid{ display: grid; gap: 20px; margin-top: 44px; grid-template-columns: 1fr; }
@media (min-width:768px){ .cond-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (min-width:1024px){ .cond-grid{ grid-template-columns: repeat(3, minmax(0,1fr)); } }
.cond-card{ padding: 24px; }
.cond-ico{
  width: 42px; height: 42px; border-radius: 13px; display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand-deep); font-weight: 800; font-size: 15px;
}
.cond-card h3{ font-size: 17px; margin-top: 16px; }
.cond-card p{ margin-top: 10px; font-size: 14.5px; color: var(--text-2); }

/* ============ 结算流程 ============ */
.settle-wrap{
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-xl);
  padding: 26px; box-shadow: var(--shadow-1); margin-top: 40px;
}
@media (min-width:1024px){ .settle-wrap{ padding: 40px; } }
.steps{ display: grid; gap: 20px; grid-template-columns: 1fr; }
@media (min-width:768px){ .steps{ grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (min-width:1024px){ .steps{ grid-template-columns: repeat(4, minmax(0,1fr)); } }
.step{
  position: relative; padding: 20px; border-radius: var(--r-l);
  background: #FAF8F6; border: 1px solid var(--line);
  transition: transform .22s ease, border-color .22s ease, background .22s ease;
}
.step:hover{ transform: translateY(-3px); background: #FFF8F4; border-color: rgba(255,106,43,.3); }
.step b{
  display: inline-grid; place-items: center; width: 30px; height: 30px;
  border-radius: 10px; background: var(--brand-grad); color: #fff;
  font-size: 13px; font-variant-numeric: tabular-nums;
}
.step h3{ font-size: 16px; margin-top: 14px; }
.step p{ margin-top: 8px; font-size: 14px; color: var(--text-2); }
.settle-note{
  margin-top: 26px; padding: 18px 20px; border-radius: var(--r-m);
  background: rgba(20,200,176,.08); border: 1px solid rgba(20,200,176,.26);
  font-size: 14.5px; color: #0E6A5E;
}

/* ============ FAQ ============ */
.faq-wrap{ max-width: 820px; margin: 40px auto 0; }
.faq-item{
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-m);
  margin-bottom: 12px; overflow: hidden; transition: border-color .22s ease, box-shadow .22s ease;
}
.faq-item[open]{ border-color: rgba(255,106,43,.35); box-shadow: var(--shadow-1); }
.faq-item summary{
  list-style: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 18px 20px; font-size: 16px; font-weight: 700; color: var(--text);
  transition: color .2s ease;
}
.faq-item summary::-webkit-details-marker{ display: none; }
.faq-item summary:hover{ color: var(--brand); }
.faq-item summary::after{
  content: "+"; flex-shrink: 0; font-size: 20px; font-weight: 700; color: var(--brand);
  transition: transform .24s ease; line-height: 1;
}
.faq-item[open] summary{ color: var(--brand-deep); }
.faq-item[open] summary::after{ transform: rotate(45deg); }
.faq-ans{ padding: 0 20px 20px; font-size: 15px; line-height: 1.85; color: var(--text-2); }

/* ============ CTA ============ */
.cta-card{
  position: relative; overflow: hidden;
  border-radius: var(--r-xl); background: var(--obsidian);
  color: #fff; padding: 32px 26px;
  display: grid; gap: 24px;
  background-image:
    radial-gradient(520px 320px at 88% 12%, rgba(255,106,43,.24), transparent 60%),
    radial-gradient(420px 280px at 6% 96%, rgba(20,200,176,.16), transparent 62%);
}
@media (min-width:1024px){
  .cta-card{ grid-template-columns: minmax(0,1.2fr) minmax(0,.8fr); align-items: center; padding: 48px; gap: 40px; }
}
.cta-card h2{ font-size: 25px; color: #fff; }
@media (min-width:768px){ .cta-card h2{ font-size: 30px; } }
.cta-card p{ margin-top: 14px; color: rgba(255,255,255,.74); font-size: 15.5px; max-width: 620px; }
.cta-actions{ display: flex; flex-wrap: wrap; gap: 12px; }

/* ============ 页脚 ============ */
.site-footer{
  background: var(--obsidian); color: rgba(255,255,255,.72);
  padding: 56px 0 24px; margin-top: 0;
}
.foot-grid{ display: grid; gap: 32px; grid-template-columns: 1fr; }
@media (min-width:768px){ .foot-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (min-width:1024px){ .foot-grid{ grid-template-columns: 1.5fr repeat(3, minmax(0,1fr)); gap: 40px; } }
.foot-brand .brand-text{ color: #fff; }
.foot-brand p{ margin-top: 16px; font-size: 14px; line-height: 1.85; max-width: 340px; }
.foot-ico{ display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.foot-ico span{
  font-size: 12px; padding: 5px 11px; border-radius: 999px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  color: rgba(255,255,255,.7);
}
.foot-title{ font-size: 13px; font-weight: 800; color: #fff; letter-spacing: .06em; margin-bottom: 14px; }
.foot-list li{ margin-bottom: 10px; }
.foot-list a{ font-size: 14px; color: rgba(255,255,255,.68); transition: color .2s ease; }
.foot-list a:hover{ color: var(--amber); }
.foot-bottom{
  margin-top: 40px; padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.08);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px;
  font-size: 13px; color: rgba(255,255,255,.56);
}
.to-top{
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,.14); color: rgba(255,255,255,.8);
  transition: color .2s ease, border-color .2s ease, transform .2s ease;
}
.to-top:hover{ color: var(--amber); border-color: rgba(255,197,61,.5); transform: translateY(-1px); }

/* 移动底栏 */
.mobile-cta{
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 80;
  gap: 10px; padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255,255,255,.94); backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
}
.mobile-cta .btn{ flex: 1; padding: 12px 14px; }
@media (max-width:1023px){
  .mobile-cta{ display: flex; }
  body{ padding-bottom: 74px; }
}

/* 入场动画 */
@keyframes fadeUp{
  from{ opacity: 0; transform: translateY(14px); }
  to{ opacity: 1; transform: translateY(0); }
}
.reveal{ opacity: 0; }
.reveal.in{ animation: fadeUp .6s cubic-bezier(.2,.7,.3,1) forwards; }
.bar-anim{ transition: width 1s cubic-bezier(.2,.7,.3,1); }