/* roulang page: index */
:root{
  --bg:#F6F6F2;
  --dark:#0B0C0E;
  --white:#FFFFFF;
  --surface:#ECEDE8;
  --text:#111214;
  --muted:#5C6167;
  --line:#D9DDD3;
  --lime:#C8FF2E;
  --lime-deep:#B2E817;
  --orange:#FF4D1F;
  --success:#16A34A;
  --warn:#F59E0B;
  --error:#DC2626;
  --radius:20px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 12px 30px rgba(0,0,0,.06);
  --shadow-hover:0 18px 44px rgba(0,0,0,.10);
  --maxw:1360px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.03em;line-height:1.18}
p{margin:0}
time{font-variant-numeric:tabular-nums}
::selection{background:var(--lime);color:var(--dark)}
:focus-visible{outline:3px solid var(--lime);outline-offset:3px;border-radius:10px}

/* ============ 容器与板块 ============ */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-dark{background:var(--dark);color:#EDEFEA}
.section-surface{background:var(--surface)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
.section-head h2{font-size:clamp(1.8rem,3.2vw,3rem);max-width:16em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin-bottom:14px
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);display:block;border-radius:2px}
.section-dark .eyebrow{color:#9AA09B}
.section-desc{color:var(--muted);max-width:32em;font-size:1rem;line-height:1.85}
.section-dark .section-desc{color:#9AA09B}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:54px;padding:0 28px;border-radius:999px;
  font-weight:800;font-size:1rem;letter-spacing:-.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;flex:0 0 auto}
.btn-primary{background:var(--lime);color:var(--dark);box-shadow:0 10px 24px rgba(200,255,46,.30)}
.btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 18px 36px rgba(200,255,46,.42)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(200,255,46,.30)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{background:var(--surface);transform:translateY(-2px);border-color:#C4CABD}
.btn-ghost:active{transform:translateY(1px)}
.btn-dark{background:var(--dark);color:#fff}
.btn-dark:hover{background:#1B1D21;transform:translateY(-2px);box-shadow:0 16px 34px rgba(11,12,14,.28)}
.btn-light{background:var(--white);color:var(--dark);border-color:var(--line)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.btn:focus-visible{outline:3px solid var(--lime);outline-offset:3px}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  background:var(--dark);color:#fff;
  font-size:.75rem;font-weight:800;letter-spacing:.02em;white-space:nowrap
}
.badge-lime{background:var(--lime);color:var(--dark)}
.badge-orange{background:var(--orange);color:#fff}
.badge-outline{background:transparent;border:1px solid var(--line);color:var(--muted)}

/* ============ 顶部导航（搜索主导） ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(246,246,242,.88);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 12px 30px rgba(11,12,14,.09);background:rgba(246,246,242,.97)}
.nav-top-inner{display:flex;align-items:center;gap:20px;padding:14px 0}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;border-radius:13px;background:var(--dark);color:var(--lime);
  display:grid;place-items:center;font-size:.72rem;font-weight:900;letter-spacing:.02em;
  flex:0 0 auto
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:1.02rem;font-weight:900;letter-spacing:-.03em;white-space:nowrap}
.brand-text span{font-size:.68rem;color:var(--muted);font-weight:700;letter-spacing:.14em;text-transform:uppercase}
.nav-search{
  position:relative;flex:1 1 auto;max-width:660px;margin:0 auto;
  display:flex;align-items:center;gap:10px;
  height:56px;padding:0 7px 0 20px;
  background:var(--white);border:1px solid var(--line);border-radius:999px;
  box-shadow:0 6px 18px rgba(0,0,0,.05);
  transition:box-shadow .22s ease,border-color .22s ease
}
.nav-search:focus-within{border-color:var(--lime);box-shadow:0 0 0 4px rgba(200,255,46,.35),0 10px 26px rgba(0,0,0,.08)}
.nav-search .search-icon{width:20px;height:20px;color:var(--muted);flex:0 0 auto}
.nav-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:.98rem;height:100%
}
.nav-search input::placeholder{color:#9AA09B}
.nav-search .search-btn{
  height:44px;padding:0 22px;border:0;border-radius:999px;
  background:var(--dark);color:#fff;font-weight:800;font-size:.9rem;cursor:pointer;
  transition:background .2s ease,transform .2s ease;flex:0 0 auto
}
.nav-search .search-btn:hover{background:var(--lime);color:var(--dark);transform:translateY(-1px)}
.nav-search .search-btn:active{transform:translateY(1px)}
.nav-cta{flex:0 0 auto}
.nav-cats{border-top:1px solid var(--line)}
.cats-scroll{
  display:flex;align-items:center;gap:10px;
  padding:12px var(--gutter);
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none
}
.cats-scroll::-webkit-scrollbar{display:none}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  height:38px;padding:0 18px;border-radius:999px;
  background:var(--surface);color:#40454A;
  font-size:.9rem;font-weight:700;white-space:nowrap;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease
}
.pill:hover{background:#E2E4DC;color:var(--dark);transform:translateY(-1px)}
.pill.is-active{background:var(--lime);color:var(--dark);border-color:var(--lime)}
.pill.is-active:hover{background:var(--lime-deep)}

/* ============ Hero ============ */
.hero{position:relative;padding:72px 0 88px;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-180px;right:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,255,46,.28),rgba(200,255,46,0) 68%);
  pointer-events:none
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero-copy{position:relative;z-index:2}
.hero-kicker{
  display:inline-flex;align-items:center;gap:9px;margin-bottom:22px;
  padding:8px 16px 8px 10px;border-radius:999px;
  background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);
  font-size:.84rem;font-weight:700;color:var(--muted)
}
.hero-kicker .dot{width:9px;height:9px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(200,255,46,.28)}
.hero h1{font-size:clamp(2.4rem,5vw,4.4rem);line-height:1.1;margin-bottom:22px}
.hero h1 em{font-style:normal;color:var(--orange)}
.hero-sub{font-size:1.08rem;color:var(--muted);line-height:1.85;max-width:34em;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px}
.stat{
  flex:1 1 130px;min-width:130px;background:var(--white);border:1px solid var(--line);
  border-radius:16px;padding:16px 18px;box-shadow:var(--shadow)
}
.stat b{display:block;font-size:1.5rem;font-weight:900;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.stat span{font-size:.8rem;color:var(--muted);font-weight:600}
.hero-visual{position:relative;z-index:1;display:flex;justify-content:center}
.phone-card{
  position:relative;width:100%;max-width:380px;aspect-ratio:9/16;
  border-radius:28px;overflow:hidden;background:var(--dark);
  box-shadow:0 30px 70px rgba(11,12,14,.28);
  animation:floatUp .9s cubic-bezier(.22,1,.36,1) both
}
.phone-card img{width:100%;height:100%;object-fit:cover;opacity:.82}
.phone-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,12,14,.10) 0%,rgba(11,12,14,.16) 42%,rgba(11,12,14,.90) 100%)
}
.phone-overlay{position:absolute;left:22px;right:22px;bottom:24px;z-index:3;color:#fff}
.phone-overlay .badge{margin-bottom:12px}
.phone-overlay h3{font-size:1.3rem;margin-bottom:8px;color:#fff}
.phone-overlay p{font-size:.88rem;color:rgba(255,255,255,.78);line-height:1.7}
.phone-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:74px;height:74px;border-radius:50%;z-index:3;
  background:rgba(255,255,255,.92);display:grid;place-items:center;
  box-shadow:0 14px 34px rgba(0,0,0,.28);transition:transform .25s ease
}
.phone-play svg{width:26px;height:26px;color:var(--dark);margin-left:3px}
.phone-card:hover .phone-play{transform:translate(-50%,-50%) scale(1.08)}
.float-tag{
  position:absolute;left:-14px;top:64px;z-index:4;
  background:var(--lime);color:var(--dark);border-radius:14px;
  padding:12px 16px;font-size:.82rem;font-weight:800;
  box-shadow:0 14px 30px rgba(200,255,46,.38)
}
.float-tag small{display:block;font-size:.7rem;font-weight:700;color:#4A5510;letter-spacing:.04em}
@keyframes floatUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

/* ============ 爆款片段卡 ============ */
.reel-scroller{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:12px}
.reel-scroller::-webkit-scrollbar{display:none}
.reel-track{
  display:flex;gap:20px;width:max-content;
  padding:6px var(--gutter) 22px;
  scroll-snap-type:x mandatory
}
.reel-card{
  position:relative;flex:0 0 262px;aspect-ratio:9/16;border-radius:var(--radius);
  overflow:hidden;background:var(--dark);scroll-snap-align:start;
  box-shadow:var(--shadow);cursor:pointer;
  transition:transform .3s cubic-bezier(.22,1,.36,1),box-shadow .3s ease
}
.reel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.reel-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;opacity:.86}
.reel-card:hover img{transform:scale(1.05)}
.reel-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,12,14,0) 34%,rgba(11,12,14,.88) 100%)}
.reel-top{position:absolute;top:14px;left:14px;z-index:3}
.reel-play{
  position:absolute;top:44%;left:50%;transform:translate(-50%,-50%);
  width:54px;height:54px;border-radius:50%;z-index:3;
  background:rgba(255,255,255,.9);display:grid;place-items:center;
  transition:transform .25s ease,background .25s ease
}
.reel-play svg{width:19px;height:19px;color:var(--dark);margin-left:2px}
.reel-card:hover .reel-play{background:var(--lime);transform:translate(-50%,-50%) scale(1.1)}
.reel-body{position:absolute;left:16px;right:16px;bottom:16px;z-index:3;color:#fff}
.reel-body h3{
  font-size:1rem;line-height:1.4;margin-bottom:8px;color:#fff;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden
}
.reel-body span{font-size:.78rem;color:rgba(255,255,255,.66);font-weight:600}

/* ============ 种草清单 ============ */
.pick-list{border-top:1px solid var(--line)}
.pick{
  display:grid;grid-template-columns:104px 200px 1fr;gap:28px;align-items:center;
  padding:30px 0;border-bottom:1px solid var(--line);
  transition:background .25s ease,padding-left .25s ease
}
.pick:hover{background:rgba(255,255,255,.7);padding-left:12px}
.pick-num{
  font-size:3.1rem;font-weight:900;letter-spacing:-.05em;line-height:1;
  color:transparent;-webkit-text-stroke:1.6px var(--line);
  font-variant-numeric:tabular-nums
}
.pick:hover .pick-num{-webkit-text-stroke:1.6px var(--lime);color:rgba(200,255,46,.18)}
.pick-media{
  width:200px;aspect-ratio:16/10;border-radius:16px;overflow:hidden;background:var(--surface);
  box-shadow:var(--shadow)
}
.pick-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.pick:hover .pick-media img{transform:scale(1.05)}
.pick-body h3{font-size:1.28rem;margin:12px 0 10px}
.pick-body p{color:var(--muted);font-size:.95rem;line-height:1.8;max-width:52em}
.pick-foot{display:flex;align-items:center;gap:18px;margin-top:16px;flex-wrap:wrap}
.score{display:inline-flex;align-items:center;gap:7px;font-size:.85rem;font-weight:800;font-variant-numeric:tabular-nums}
.score .stars{color:var(--warn);letter-spacing:2px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:.88rem;font-weight:800;
  color:var(--text);border-bottom:2px solid var(--line);padding-bottom:2px;
  text-underline-offset:4px;transition:border-color .2s ease,color .2s ease
}
.link-more:hover{border-color:var(--lime);color:var(--dark)}
.link-more svg{width:14px;height:14px}

/* ============ 口碑条 ============ */
.review-scroller{overflow-x:auto;scrollbar-width:none;padding-bottom:14px}
.review-scroller::-webkit-scrollbar{display:none}
.review-track{display:flex;gap:18px;width:max-content;padding:4px var(--gutter) 20px}
.review-card{
  flex:0 0 320px;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:42px;height:42px;border-radius:50%;flex:0 0 auto;
  display:grid;place-items:center;font-weight:900;font-size:.95rem;
  background:var(--surface);color:var(--dark)
}
.avatar.lime{background:var(--lime)}
.avatar.dark{background:var(--dark);color:var(--lime)}
.review-name{font-weight:800;font-size:.95rem;line-height:1.35}
.review-name small{display:block;font-weight:600;font-size:.75rem;color:var(--muted)}
.review-card p{font-size:.92rem;color:#3A3F44;line-height:1.8}
.review-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:.78rem;color:var(--muted);font-weight:600}

/* ============ 最新信息 ============ */
.latest-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;margin-bottom:24px}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform .28s cubic-bezier(.22,1,.36,1),box-shadow .28s ease
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.lead-card{display:flex;flex-direction:column}
.lead-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface)}
.lead-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.lead-card:hover .lead-cover img{transform:scale(1.04)}
.lead-cover .badge{position:absolute;top:16px;left:16px}
.lead-body{padding:26px 26px 28px}
.lead-body h3{font-size:1.5rem;line-height:1.35;margin-bottom:12px}
.lead-body p{color:var(--muted);font-size:.95rem;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;align-items:center;justify-content:space-between;margin-top:20px;font-size:.82rem;color:var(--muted);font-weight:600}
.meta .more{color:var(--dark);font-weight:800}
.mini-list{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.mini-card{display:flex;flex-direction:column;padding:22px}
.mini-cat{
  display:inline-flex;align-self:flex-start;margin-bottom:12px;
  padding:4px 11px;border-radius:999px;background:var(--surface);
  font-size:.72rem;font-weight:800;color:var(--muted);letter-spacing:.04em
}
.mini-card h4{font-size:1.02rem;line-height:1.45;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-card p{font-size:.86rem;color:var(--muted);line-height:1.75;flex:1 1 auto;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-card time{display:block;margin-top:14px;font-size:.76rem;color:#9AA09B;font-weight:600}
.more-list{border-top:1px solid var(--line);padding-top:8px}
.more-list li a{
  display:flex;align-items:center;gap:14px;padding:16px 8px;
  border-bottom:1px solid var(--line);font-weight:700;font-size:.96rem;
  transition:background .2s ease,padding-left .2s ease
}
.more-list li a:hover{background:rgba(255,255,255,.7);padding-left:16px}
.more-list .dot{width:8px;height:8px;border-radius:50%;background:var(--lime);flex:0 0 auto}
.more-list time{margin-left:auto;font-size:.78rem;color:var(--muted);font-weight:600;white-space:nowrap}
.empty-state{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);
  padding:56px 28px;text-align:center;color:var(--muted)
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:50%;margin:0 auto 18px;
  background:var(--white);display:grid;place-items:center;box-shadow:var(--shadow)
}
.empty-state .empty-icon svg{width:24px;height:24px;color:var(--muted)}
.empty-state strong{display:block;font-size:1.05rem;color:var(--text);margin-bottom:8px;font-weight:800}
.empty-state a{color:var(--dark);font-weight:800;border-bottom:2px solid var(--lime)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:18px;
  overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease
}
.faq-item[open]{box-shadow:var(--shadow);border-color:#C4CABD}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:22px 24px;font-weight:800;font-size:1.02rem;line-height:1.5
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:3px solid var(--lime);outline-offset:-3px}
.faq-icon{
  margin-left:auto;width:30px;height:30px;border-radius:50%;flex:0 0 auto;
  background:var(--surface);display:grid;place-items:center;
  transition:transform .28s ease,background .28s ease
}
.faq-icon svg{width:14px;height:14px;color:var(--dark)}
.faq-item[open] .faq-icon{transform:rotate(135deg);background:var(--lime)}
.faq-body{
  padding:0 24px 24px;color:var(--muted);font-size:.95rem;line-height:1.85;
  background:var(--surface)
}
.faq-body p{padding-top:18px}
.faq-aside{
  background:var(--dark);color:#EDEFEA;border-radius:var(--radius-lg);
  padding:34px 30px;box-shadow:0 24px 60px rgba(11,12,14,.24)
}
.faq-aside h3{font-size:1.5rem;color:#fff;margin-bottom:14px}
.faq-aside p{color:#9AA09B;font-size:.94rem;line-height:1.85;margin-bottom:24px}
.aside-list{display:flex;flex-direction:column;gap:14px;margin-bottom:28px}
.aside-list li{display:flex;gap:12px;font-size:.92rem;color:#CBD0C9;line-height:1.7}
.aside-list .tick{
  width:22px;height:22px;border-radius:50%;background:rgba(200,255,46,.16);
  color:var(--lime);display:grid;place-items:center;flex:0 0 auto;font-size:.7rem;font-weight:900
}

/* ============ 底部 CTA ============ */
.cta-band{
  background:linear-gradient(135deg,#0B0C0E 0%,#171A1D 55%,#0B0C0E 100%);
  border-radius:var(--radius-lg);padding:56px 48px;color:#fff;
  display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;
  position:relative;overflow:hidden
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,255,46,.28),rgba(200,255,46,0) 70%)
}
.cta-band h2{font-size:clamp(1.7rem,3vw,2.6rem);color:#fff;margin-bottom:16px;position:relative;z-index:2}
.cta-band p{color:#9AA09B;max-width:36em;line-height:1.85;position:relative;z-index:2}
.cta-actions{display:flex;flex-direction:column;gap:14px;position:relative;z-index:2}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#B7BCB5;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding:72px 0 48px
}
.footer-brand .brand-text b{color:#fff}
.footer-brand .brand-text span{color:#7C827C}
.footer-brand p{font-size:.92rem;line-height:1.85;color:#8B918A;margin:20px 0 24px;max-width:26em}
.footer-search{
  display:flex;align-items:center;gap:10px;height:52px;padding:0 7px 0 18px;
  background:#16181B;border:1px solid #24272B;border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease
}
.footer-search:focus-within{border-color:var(--lime);box-shadow:0 0 0 3px rgba(200,255,46,.22)}
.footer-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:.9rem;color:#EDEFEA}
.footer-search input::placeholder{color:#6D736D}
.footer-search button{
  height:40px;padding:0 18px;border:0;border-radius:999px;
  background:var(--lime);color:var(--dark);font-weight:800;font-size:.85rem;cursor:pointer;
  transition:background .2s ease
}
.footer-search button:hover{background:var(--lime-deep)}
.footer-col h4{font-size:.9rem;color:#fff;letter-spacing:.06em;margin-bottom:20px;font-weight:800}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:.9rem;color:#8B918A;transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--lime);padding-left:4px}
.footer-bottom{border-top:1px solid #1E2124;padding:22px 0 30px}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
.footer-bottom p{font-size:.82rem;color:#6D736D}
.footer-bottom .tech a{color:#8B918A;border-bottom:1px solid #2A2E32;transition:color .2s ease,border-color .2s ease}
.footer-bottom .tech a:hover{color:var(--lime);border-color:var(--lime)}

/* ============ 移动端一键跟买 ============ */
.sticky-buy{
  position:fixed;left:12px;right:12px;bottom:12px;z-index:80;
  display:none;gap:10px;align-items:center;
  background:rgba(255,255,255,.96);backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:999px;padding:8px;
  box-shadow:0 16px 40px rgba(11,12,14,.18);
  transform:translateY(140%);transition:transform .35s cubic-bezier(.22,1,.36,1)
}
.sticky-buy.is-visible{transform:translateY(0)}
.sticky-main{flex:1 1 auto;height:56px;padding:0 20px;font-size:.98rem}
.sticky-icon{
  width:56px;height:56px;padding:0;flex:0 0 auto;border-radius:999px;
  display:grid;place-items:center
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-grid{gap:40px}
  .pick{grid-template-columns:88px 180px 1fr;gap:22px}
  .pick-media{width:180px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .nav-search{max-width:420px}
  .hero{padding:52px 0 68px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{order:-1}
  .phone-card{max-width:300px}
  .float-tag{left:auto;right:-6px;top:34px}
  .latest-grid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:36px}
  .cta-band{grid-template-columns:1fr;padding:44px 32px}
  .pick{grid-template-columns:72px 1fr;gap:18px}
  .pick-media{width:100%;grid-column:2;aspect-ratio:16/9}
  .pick-body{grid-column:2}
  .pick-num{grid-row:1 / span 2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.78}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px}
  .nav-top-inner{flex-wrap:wrap;gap:12px;padding:12px 0}
  .brand-text span{display:none}
  .nav-search{order:3;max-width:100%;width:100%;margin:0;height:52px;padding-left:16px}
  .nav-search .search-btn{height:40px;padding:0 16px;font-size:.85rem}
  .nav-cta{display:none}
  .hero-visual{order:0}
  .phone-card{max-width:280px}
  .float-tag{display:none}
  .hero-actions .btn{flex:1 1 100%}
  .mini-list{grid-template-columns:1fr}
  .pick{grid-template-columns:64px 1fr}
  .pick-num{font-size:2.4rem}
  .review-card{flex:0 0 84vw}
  .reel-card{flex:0 0 68vw}
  .sticky-buy{display:flex}
  .cta-band{padding:36px 24px;border-radius:22px}
  .footer-grid{grid-template-columns:1fr;gap:34px;padding:56px 0 36px}
  .footer-bottom .container{flex-direction:column;align-items:flex-start;gap:8px}
  .more-list time{display:none}
}
@media (max-width:520px){
  :root{--gutter:16px}
  .hero h1{font-size:2.05rem}
  .stat{flex:1 1 44%}
  .lead-body{padding:20px}
  .lead-body h3{font-size:1.24rem}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --bg:#F6F6F2;
  --dark:#0B0C0E;
  --dark-2:#15171B;
  --surface:#FFFFFF;
  --surface-2:#ECEDE8;
  --text:#111214;
  --muted:#5C6167;
  --line:#D9DDD3;
  --lime:#C8FF2E;
  --lime-deep:#B4E81F;
  --ink:#0B0C0E;
  --orange:#FF4D1F;
  --success:#16A34A;
  --warn:#F59E0B;
  --error:#DC2626;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-sm:0 6px 18px rgba(0,0,0,.05);
  --shadow:0 12px 30px rgba(0,0,0,.06);
  --shadow-lg:0 18px 44px rgba(0,0,0,.10);
  --space-section:104px;
  --font:-apple-system,BlinkMacSystemFont,"HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:17px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-md)}
a{color:inherit;text-decoration:none}
p{margin:0 0 1.1em}
h1,h2,h3,h4{margin:0 0 .6em;letter-spacing:-.03em;font-weight:900;line-height:1.16}
h1{font-size:clamp(2.4rem,5vw,4.2rem)}
h2{font-size:clamp(1.8rem,3.2vw,2.6rem)}
h3{font-size:clamp(1.15rem,1.6vw,1.45rem)}
ul,ol{margin:0 0 1.1em;padding-left:1.25em}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid var(--lime);outline-offset:2px;border-radius:8px}
::selection{background:var(--lime);color:var(--ink)}
.container{width:100%;max-width:1360px;margin:0 auto;padding:0 28px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,246,242,.92);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(0,0,0,.09);background:rgba(246,246,242,.97)}
.nav-top-inner{display:flex;align-items:center;gap:28px;padding-top:16px;padding-bottom:16px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  display:grid;place-items:center;width:44px;height:44px;border-radius:14px;
  background:var(--ink);color:var(--lime);font-weight:900;font-size:.86rem;letter-spacing:.06em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:1rem;font-weight:900;letter-spacing:-.02em}
.brand-text span{font-size:.75rem;color:var(--muted);letter-spacing:.04em}
.nav-search{
  display:flex;align-items:center;gap:10px;
  flex:1 1 auto;max-width:660px;
  height:56px;padding:0 8px 0 18px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill);
  box-shadow:var(--shadow-sm);transition:box-shadow .2s ease,border-color .2s ease;
}
.nav-search:focus-within{border-color:var(--lime);box-shadow:0 0 0 5px rgba(200,255,46,.35),var(--shadow)}
.search-icon{width:20px;height:20px;flex:0 0 auto;color:var(--muted)}
.nav-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;height:100%;
  font-size:.98rem;outline:none;
}
.nav-search input::placeholder{color:#9AA09A}
.search-btn{
  flex:0 0 auto;height:42px;padding:0 22px;border-radius:var(--radius-pill);
  background:var(--lime);color:var(--ink);font-weight:800;font-size:.92rem;
  transition:transform .18s ease,background .18s ease;
}
.search-btn:hover{background:var(--lime-deep);transform:translateY(-1px)}
.search-btn:active{transform:translateY(1px)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--radius-pill);
  font-weight:800;font-size:.95rem;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{background:var(--surface-2);transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#22252A;transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.nav-cta{flex:0 0 auto}
.nav-cats{border-top:1px solid var(--line);background:rgba(255,255,255,.5)}
.cats-scroll{display:flex;gap:10px;padding:12px 28px;overflow-x:auto;scrollbar-width:none}
.cats-scroll::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border-radius:var(--radius-pill);background:var(--surface-2);color:#3C4147;
  font-size:.9rem;font-weight:700;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.pill:hover{background:#E2E4DC;color:var(--ink);transform:translateY(-1px)}
.pill.is-active{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.menu-toggle{display:none}

/* ---------- article hero ---------- */
.article-hero{position:relative;padding:56px 0 44px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%)}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.86rem;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--lime);text-decoration-thickness:2px}
.crumbs .sep{opacity:.55}
.hero-tagline{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--radius-pill);
  font-size:.8rem;font-weight:800;letter-spacing:.02em;
}
.tag-lime{background:var(--lime);color:var(--ink)}
.tag-line{background:transparent;border:1px solid var(--line);color:var(--muted)}
.article-hero h1{max-width:1020px;margin-bottom:22px}
.article-hero .lead{max-width:820px;color:var(--muted);font-size:1.06rem;margin-bottom:26px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:.88rem;color:var(--muted)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;
  border-radius:var(--radius-pill);background:var(--surface);border:1px solid var(--line);font-weight:700;color:#3C4147;
}
.hero-strip{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;margin-top:36px}
.hero-strip figure{margin:0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:var(--surface)}
.hero-strip img{width:100%;height:230px;object-fit:cover;border-radius:0;transition:transform .5s ease}
.hero-strip figure:hover img{transform:scale(1.04)}
.hero-strip .strip-note{
  display:flex;flex-direction:column;justify-content:center;gap:12px;
  padding:26px;border-radius:var(--radius-lg);background:var(--ink);color:#E9EBE4;
}
.hero-strip .strip-note b{font-size:1.15rem;color:#fff;letter-spacing:-.02em}
.hero-strip .strip-note p{margin:0;color:#B9BEB6;font-size:.94rem}
.hero-strip .strip-note a{color:var(--lime);font-weight:800}

/* ---------- layout ---------- */
.section{padding:var(--space-section) 0}
.section-tight{padding:64px 0}
.section-dark{background:var(--dark);color:#EDEFE9}
.section-dark h2,.section-dark h3{color:#fff}
.section-dark p{color:#B9BEB6}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.article-main{max-width:820px}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:34px;
}
.side-card{
  position:sticky;top:130px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:24px;
}
.side-card h3{font-size:1.05rem;margin-bottom:14px}
.side-list{list-style:none;margin:0 0 20px;padding:0}
.side-list li{border-bottom:1px solid var(--line);padding:12px 0}
.side-list li:last-child{border-bottom:0}
.side-list a{display:block;font-size:.94rem;font-weight:700;color:#2A2E33}
.side-list a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--lime);text-decoration-thickness:2px}
.side-list span{display:block;font-size:.8rem;color:var(--muted);font-weight:500;margin-top:4px}

/* ---------- prose ---------- */
.article-body{font-size:1.06rem;line-height:1.85;color:#1C1F22}
.article-body > *+*{margin-top:1.2em}
.article-body p{margin:0}
.article-body h2{font-size:clamp(1.5rem,2.4vw,2rem);margin-top:2em;padding-top:.2em;position:relative}
.article-body h2::before{
  content:"";display:block;width:56px;height:6px;border-radius:999px;background:var(--lime);margin-bottom:16px;
}
.article-body h3{font-size:1.28rem;margin-top:1.7em}
.article-body ul,.article-body ol{padding-left:1.4em}
.article-body li{margin-bottom:.55em}
.article-body li::marker{color:var(--orange);font-weight:800}
.article-body img{border-radius:var(--radius-md);margin:1.6em 0;border:1px solid var(--line)}
.article-body a{color:#0F1013;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--lime);text-decoration-thickness:2px}
.article-body a:hover{color:var(--orange)}
.article-body blockquote{
  margin:1.8em 0;padding:20px 26px;background:var(--surface-2);
  border-left:4px solid var(--lime);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#33383E;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:.85rem;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:1.8em 0;
  border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;font-size:.95rem;
}
.article-body thead th{background:var(--surface-2);font-weight:800;text-align:left}
.article-body th,.article-body td{padding:14px 18px;border-bottom:1px solid var(--line);vertical-align:top}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body tbody tr:hover{background:#FAFAF6}
.article-body code{background:var(--surface-2);padding:2px 7px;border-radius:6px;font-size:.9em}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:36px}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.06)}
.card-badge{
  position:absolute;top:14px;left:14px;height:28px;padding:0 12px;display:inline-flex;align-items:center;
  border-radius:var(--radius-pill);background:var(--lime);color:var(--ink);font-size:.75rem;font-weight:800;
}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:1.06rem;margin:0}
.card-body p{margin:0;color:var(--muted);font-size:.92rem}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:.82rem;color:var(--muted)}
.card-link{font-weight:800;color:var(--ink)}
.card-link:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--lime);text-decoration-thickness:2px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-weight:800;font-size:1rem;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;background:var(--surface-2);
  display:grid;place-items:center;font-weight:800;transition:transform .25s ease,background .25s ease;
}
.faq-item[open] summary .plus{transform:rotate(45deg);background:var(--lime)}
.faq-item[open] .faq-answer{background:#F3F4EF}
.faq-answer{padding:4px 24px 22px;color:#3A3F45;font-size:.96rem}
.faq-answer p{margin:0}

/* ---------- cta ---------- */
.cta-band{
  background:var(--dark);color:#EDEFE9;border-radius:26px;padding:56px;
  display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center;
}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:#B9BEB6;margin-bottom:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1)}

/* ---------- empty / notice ---------- */
.notice{
  display:flex;gap:18px;align-items:flex-start;padding:28px;border:1px solid var(--line);
  border-radius:var(--radius-lg);background:var(--surface-2);
}
.notice .icon{
  flex:0 0 auto;width:46px;height:46px;border-radius:14px;background:var(--ink);color:var(--lime);
  display:grid;place-items:center;font-weight:900;
}
.notice h3{margin:0 0 6px;font-size:1.05rem}
.notice p{margin:0;color:var(--muted);font-size:.94rem}
.notice a{font-weight:800;color:var(--ink);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--lime);text-decoration-thickness:2px}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#C8CDC4;padding:78px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;padding-bottom:56px}
.site-footer .brand-text b{color:#fff}
.site-footer .brand-text span{color:#8F958C}
.site-footer .brand-mark{background:var(--lime);color:var(--ink)}
.footer-brand p{margin:18px 0 20px;font-size:.93rem;color:#9BA096;max-width:420px}
.footer-search{display:flex;gap:8px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-pill);padding:6px 6px 6px 18px;max-width:420px}
.footer-search input{flex:1 1 auto;min-width:0;border:0;background:transparent;height:44px;color:#fff;outline:none}
.footer-search input::placeholder{color:#7F857C}
.footer-search button{height:44px;padding:0 20px;border-radius:var(--radius-pill);background:var(--lime);color:var(--ink);font-weight:800}
.footer-search button:hover{background:var(--lime-deep)}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:18px;letter-spacing:0}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.footer-col a{font-size:.93rem;color:#9BA096}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:.85rem;color:#8A9086}
.footer-bottom a{color:var(--lime)}

/* ---------- states ---------- */
.is-loading{position:relative;overflow:hidden;background:var(--surface-2)}
.is-loading::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.65),transparent);
  animation:shimmer 1.3s infinite;
}
@keyframes shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
@keyframes riseIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.rise{animation:riseIn .7s ease both}
.rise-2{animation-delay:.12s}
.rise-3{animation-delay:.24s}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  :root{--space-section:84px}
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:36px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
}
@media (max-width:991px){
  :root{--space-section:72px}
  .nav-top-inner{flex-wrap:wrap;gap:16px}
  .nav-search{order:3;flex:1 1 100%;max-width:none;height:52px}
  .nav-cta{margin-left:auto}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .side-card{position:static}
  .hero-strip{grid-template-columns:1fr}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;padding:40px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:575px){
  :root{--space-section:56px}
  .container{padding:0 18px}
  .cats-scroll{padding:12px 18px}
  body{font-size:16px}
  .brand-text span{display:none}
  .nav-cta{height:44px;padding:0 18px;font-size:.88rem}
  .article-hero{padding:36px 0 30px}
  .panel{padding:22px}
  .related-grid{grid-template-columns:1fr}
  .cta-band{padding:30px;border-radius:20px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .article-body{font-size:1rem}
  .article-body table{font-size:.88rem}
  .article-body th,.article-body td{padding:11px 12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg:#F6F6F2;
  --dark:#0B0C0E;
  --dark-2:#15171A;
  --surface:#FFFFFF;
  --surface-2:#ECEDE8;
  --ink:#111214;
  --ink-2:#5C6167;
  --ink-3:#8A9098;
  --line:#D9DDD3;
  --lime:#C8FF2E;
  --lime-deep:#B0E51C;
  --orange:#FF4D1F;
  --ok:#16A34A;
  --warn:#F59E0B;
  --err:#DC2626;
  --radius:20px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 12px 30px rgba(0,0,0,.06);
  --shadow-hover:0 18px 44px rgba(0,0,0,.10);
  --container:1280px;
  --gap:24px;
  --ease:cubic-bezier(.22,.7,.28,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(200,255,46,.9);outline-offset:3px;border-radius:6px}
::selection{background:var(--lime);color:var(--dark)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--radius-pill);
  font-weight:700;font-size:15px;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),background-color .25s var(--ease),box-shadow .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--dark);box-shadow:0 10px 26px rgba(200,255,46,.25)}
.btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 16px 34px rgba(200,255,46,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(200,255,46,.22)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.btn-ghost:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-dark{background:var(--dark);color:#fff}
.btn-dark:hover{background:#000;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{background:var(--surface-2);transform:translateY(-2px)}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:var(--surface-2);color:var(--ink-2);
}
.badge-lime{background:var(--lime);color:var(--dark)}
.badge-dark{background:var(--dark);color:#fff}
.badge-orange{background:rgba(255,77,31,.12);color:var(--orange)}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:8px;font-size:12.5px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,246,242,.92);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease),background-color .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(11,12,14,.08);background:rgba(246,246,242,.97)}
.nav-top-inner{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;gap:20px;
  padding-top:14px;padding-bottom:14px;
}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{
  flex:0 0 auto;width:46px;height:46px;border-radius:14px;
  background:var(--lime);color:var(--dark);
  display:grid;place-items:center;
  font-weight:900;font-size:15px;letter-spacing:-.04em;
  box-shadow:0 8px 20px rgba(200,255,46,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-text b{font-size:15px;font-weight:900;letter-spacing:-.02em;white-space:nowrap}
.brand-text span{font-size:11.5px;color:var(--ink-2);letter-spacing:.04em;white-space:nowrap}
.nav-search{
  position:relative;display:flex;align-items:center;
  width:100%;max-width:640px;margin:0 auto;height:56px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:0 6px 0 20px;
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.nav-search:focus-within{border-color:var(--lime-deep);box-shadow:0 0 0 4px rgba(200,255,46,.35)}
.search-icon{flex:0 0 auto;width:20px;height:20px;color:var(--ink-3);margin-right:12px}
.nav-search input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;outline:none;font-size:15px;
}
.nav-search input::placeholder{color:var(--ink-3)}
.search-btn{
  flex:0 0 auto;height:44px;padding:0 22px;border:0;border-radius:var(--radius-pill);
  background:var(--dark);color:#fff;font-weight:700;font-size:14px;cursor:pointer;
  transition:background-color .25s var(--ease),color .25s var(--ease),transform .2s var(--ease);
}
.search-btn:hover{background:var(--lime);color:var(--dark)}
.search-btn:active{transform:scale(.97)}
.nav-cta{justify-self:end}
.nav-cats{border-top:1px solid var(--line);background:rgba(255,255,255,.55)}
.cats-scroll{
  display:flex;align-items:center;gap:10px;
  padding:12px 24px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.cats-scroll::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;padding:9px 20px;border-radius:var(--radius-pill);
  background:var(--surface-2);color:#3C4249;font-size:14px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.pill:hover{background:#E1E4DA;transform:translateY(-1px)}
.pill:active{transform:translateY(0)}
.pill.is-active{background:var(--lime);color:var(--dark);font-weight:800;border-color:#AFE41E}

/* ============ Hero ============ */
.hero{position:relative;background:var(--dark);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.34}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,12,14,.95) 0%,rgba(11,12,14,.82) 45%,rgba(11,12,14,.55) 100%);
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:56px;align-items:center;
  padding:56px 0 64px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.58);margin-bottom:18px}
.crumb a:hover{color:var(--lime)}
.crumb i{font-style:normal;opacity:.5}
.hero h1{
  font-size:clamp(2rem,4.2vw,3.45rem);
  font-weight:900;line-height:1.12;letter-spacing:-.035em;
  animation:riseIn .7s var(--ease) both;
}
.hero h1 em{font-style:normal;color:var(--lime)}
.hero-lead{
  margin-top:20px;font-size:17px;line-height:1.9;color:rgba(255,255,255,.76);
  max-width:620px;
  animation:riseIn .8s .08s var(--ease) both;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;animation:riseIn .9s .16s var(--ease) both}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;margin-top:44px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.14);
  animation:riseIn 1s .24s var(--ease) both;
}
.hero-stats strong{display:block;font-size:26px;font-weight:900;letter-spacing:-.03em;color:var(--lime)}
.hero-stats span{display:block;font-size:12.5px;color:rgba(255,255,255,.62);margin-top:2px}
.hero-visual{position:relative;animation:riseIn 1s .12s var(--ease) both}
.hero-visual img{
  width:100%;aspect-ratio:9/16;max-height:520px;object-fit:cover;
  border-radius:var(--radius);border:1px solid rgba(255,255,255,.16);
  box-shadow:0 30px 70px rgba(0,0,0,.5);
}
.hero-float{
  position:absolute;left:-18px;bottom:26px;
  display:flex;align-items:center;gap:10px;
  background:rgba(11,12,14,.86);border:1px solid rgba(255,255,255,.16);
  border-radius:14px;padding:12px 16px;backdrop-filter:blur(8px);
  font-size:13px;color:rgba(255,255,255,.86);
}
.hero-float b{color:var(--lime);font-weight:800}
@keyframes riseIn{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-alt{background:var(--bg)}
.section-surface{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:34px;display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap}
.section-head h2{
  font-size:clamp(1.65rem,3vw,2.4rem);font-weight:900;letter-spacing:-.03em;line-height:1.2;
}
.section-head p{margin-top:12px;color:var(--ink-2);max-width:660px;font-size:15.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-2);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--lime);border-radius:2px}

/* ============ 筛选 ============ */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.filter{
  padding:9px 20px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  font-size:14px;font-weight:600;cursor:pointer;
  transition:all .22s var(--ease);
}
.filter:hover{border-color:var(--dark);color:var(--ink);transform:translateY(-1px)}
.filter.is-active{background:var(--dark);border-color:var(--dark);color:#fff}

/* ============ 竖屏片段滑轨 ============ */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:20px;overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:6px 4px 26px;
  scrollbar-width:none;-ms-overflow-style:none;
  cursor:grab;
}
.rail::-webkit-scrollbar{display:none}
.rail.is-dragging{cursor:grabbing;scroll-snap-type:none}
.clip{
  flex:0 0 262px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:12px;box-shadow:var(--shadow);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.clip:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.clip[hidden]{display:none}
.clip-media{position:relative;aspect-ratio:9/16;border-radius:16px;overflow:hidden;background:var(--surface-2)}
.clip-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.clip:hover .clip-media img{transform:scale(1.05)}
.clip-cat{position:absolute;top:12px;left:12px;z-index:2}
.clip-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:52px;height:52px;border-radius:50%;
  background:rgba(11,12,14,.6);border:1px solid rgba(255,255,255,.4);
  display:grid;place-items:center;backdrop-filter:blur(6px);
  transition:background-color .25s var(--ease),transform .25s var(--ease);
}
.clip-play svg{width:18px;height:18px;fill:#fff;margin-left:2px}
.clip:hover .clip-play{background:var(--lime);transform:translate(-50%,-50%) scale(1.08)}
.clip:hover .clip-play svg{fill:var(--dark)}
.clip h3{
  margin:12px 4px 8px;font-size:15px;font-weight:800;line-height:1.5;letter-spacing:-.01em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:45px;
}
.clip-meta{display:flex;align-items:center;justify-content:space-between;padding:0 4px 4px;font-size:12px;color:var(--ink-3)}
.clip-meta b{color:var(--ink-2);font-weight:700}
.rail-empty{
  display:none;align-items:center;gap:14px;
  padding:28px;border-radius:var(--radius);border:1px dashed var(--line);
  background:var(--surface-2);color:var(--ink-2);font-size:14.5px;
}
.rail-empty.is-show{display:flex}
.rail-empty svg{width:26px;height:26px;flex:0 0 auto;color:var(--ink-3)}
.rail-hint{font-size:13px;color:var(--ink-3);padding-left:4px}

/* ============ 路径面板 ============ */
.spec-list{border-top:1px solid var(--line)}
.spec-row{
  display:grid;grid-template-columns:240px minmax(0,1fr);
  gap:32px;padding:30px 0;border-bottom:1px solid var(--line);
  transition:background-color .25s var(--ease);
}
.spec-row:hover{background:rgba(236,237,232,.5)}
.spec-key{display:flex;align-items:flex-start;gap:14px}
.spec-num{
  flex:0 0 auto;font-size:34px;font-weight:900;line-height:1;
  letter-spacing:-.04em;color:transparent;-webkit-text-stroke:1.4px var(--line);
}
.spec-row:hover .spec-num{-webkit-text-stroke:1.4px var(--lime-deep)}
.spec-key h3{font-size:17px;font-weight:800;letter-spacing:-.02em;line-height:1.5}
.spec-key span{display:block;font-size:12.5px;color:var(--ink-3)}
.spec-body p{color:var(--ink-2);font-size:15px;max-width:760px}
.spec-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ============ 场景速配 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.scene{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
  display:flex;flex-direction:column;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.scene:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.scene-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.scene:hover .scene-media img{transform:scale(1.05)}
.scene-media .badge{position:absolute;top:14px;left:14px}
.scene-body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.scene-body h3{font-size:18px;font-weight:800;letter-spacing:-.02em}
.scene-body p{font-size:14.5px;color:var(--ink-2);flex:1}
.scene-list{display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:var(--ink-2)}
.scene-list li{display:flex;gap:8px;align-items:flex-start}
.scene-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--lime-deep)}

/* ============ 口碑条 ============ */
.voices{
  display:flex;gap:18px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x proximity;
  scrollbar-width:none;
}
.voices::-webkit-scrollbar{display:none}
.voice{
  flex:0 0 320px;scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.voice:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.voice-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:42px;height:42px;border-radius:50%;flex:0 0 auto;
  display:grid;place-items:center;font-weight:800;font-size:15px;
  background:var(--dark);color:var(--lime);
}
.voice-head b{display:block;font-size:14.5px;font-weight:800}
.voice-head span{display:block;font-size:12px;color:var(--ink-3)}
.stars{color:var(--orange);font-size:13px;letter-spacing:1px}
.voice p{font-size:14.5px;color:var(--ink-2);min-height:78px}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:48px;align-items:start}
.faq-aside h2{font-size:clamp(1.6rem,2.8vw,2.2rem);font-weight:900;letter-spacing:-.03em;line-height:1.25}
.faq-aside p{margin-top:16px;color:var(--ink-2);font-size:15px}
.faq-aside .btn{margin-top:26px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:#C6CBBE;box-shadow:var(--shadow)}
.faq-item[open]{border-color:var(--dark);box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;font-size:15.5px;font-weight:800;letter-spacing:-.01em;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;font-size:19px;font-weight:700;line-height:1;
  background:var(--surface-2);color:var(--ink-2);
  transition:transform .3s var(--ease),background-color .3s var(--ease),color .3s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg);background:var(--lime);color:var(--dark)}
.faq-body{padding:0 22px 22px;font-size:14.8px;color:var(--ink-2);border-top:1px solid var(--line);padding-top:18px;background:rgba(236,237,232,.45)}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--dark);color:#fff;border-radius:28px;
  padding:58px 48px;
  display:grid;grid-template-columns:minmax(0,1.2fr) auto;gap:36px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,255,46,.28),transparent 68%);
}
.cta-band h2{font-size:clamp(1.6rem,2.8vw,2.2rem);font-weight:900;letter-spacing:-.03em;line-height:1.25;position:relative;z-index:1}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.74);max-width:620px;font-size:15.5px;position:relative;z-index:1}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#fff;margin-top:0;padding-top:72px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;padding-bottom:52px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand .brand-text b{color:#fff}
.footer-brand .brand-text span{color:rgba(255,255,255,.55)}
.footer-brand p{color:rgba(255,255,255,.66);font-size:14.5px;max-width:400px}
.footer-search{
  display:flex;align-items:center;gap:8px;margin-top:22px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-pill);padding:5px 5px 5px 18px;max-width:400px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.footer-search:focus-within{border-color:var(--lime);box-shadow:0 0 0 4px rgba(200,255,46,.22)}
.footer-search input{flex:1;min-width:0;height:44px;background:transparent;border:0;outline:none;color:#fff;font-size:14px}
.footer-search input::placeholder{color:rgba(255,255,255,.45)}
.footer-search button{
  flex:0 0 auto;height:44px;padding:0 20px;border:0;border-radius:var(--radius-pill);
  background:var(--lime);color:var(--dark);font-weight:800;font-size:13.5px;cursor:pointer;
  transition:background-color .25s var(--ease);
}
.footer-search button:hover{background:var(--lime-deep)}
.footer-col h4{font-size:14.5px;font-weight:800;letter-spacing:.02em;margin-bottom:18px;color:#fff}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .22s var(--ease),padding-left .22s var(--ease)}
.footer-col a:hover{color:var(--lime);padding-left:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom .tech a{color:rgba(255,255,255,.7);text-decoration:underline;text-underline-offset:4px}
.footer-bottom .tech a:hover{color:var(--lime)}

/* ============ 移动端固定操作条 ============ */
.sticky-buy{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:none;align-items:center;gap:10px;
  padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  background:rgba(11,12,14,.95);
  backdrop-filter:blur(12px);
  border-top:1px solid rgba(255,255,255,.12);
  transform:translateY(130%);
  transition:transform .35s var(--ease);
}
.sticky-buy.is-visible{transform:translateY(0)}
.sticky-buy .btn{flex:1;height:50px}
.sticky-buy .icon-btn{
  flex:0 0 auto;width:50px;height:50px;border-radius:14px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  display:grid;place-items:center;color:#fff;cursor:pointer;
  transition:background-color .25s var(--ease);
}
.sticky-buy .icon-btn:hover{background:rgba(255,255,255,.2)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-inner{gap:40px}
  .clip{flex-basis:240px}
}
@media (max-width:991px){
  .section{padding:66px 0}
  .hero-inner{grid-template-columns:1fr;gap:38px;padding:44px 0 52px}
  .hero-visual{max-width:420px;margin:0 auto}
  .hero-visual img{max-height:440px}
  .hero-float{left:8px;bottom:14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:44px 32px}
  .spec-row{grid-template-columns:1fr;gap:16px}
}
@media (max-width:900px){
  .nav-top-inner{grid-template-columns:minmax(0,1fr) auto;row-gap:12px}
  .brand{grid-column:1;grid-row:1}
  .nav-cta{grid-column:2;grid-row:1;height:46px;padding:0 18px;font-size:14px}
  .nav-search{grid-column:1/-1;grid-row:2;max-width:none;margin:0;height:52px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .cats-scroll{padding:10px 18px}
  .section{padding:54px 0}
  .clip{flex-basis:72vw}
  .voice{flex-basis:84vw}
  .sticky-buy{display:flex}
  .site-footer{padding-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .cta-band{padding:36px 22px;border-radius:22px}
  .hero-float{position:static;margin-top:14px;left:auto;bottom:auto}
}
@media (max-width:520px){
  .brand-mark{width:42px;height:42px;font-size:13.5px}
  .brand-text b{font-size:13.5px;white-space:normal}
  .brand-text span{font-size:11px}
  .nav-cta{height:42px;padding:0 14px;font-size:13px}
  .hero h1{font-size:1.85rem}
  .hero-lead{font-size:15px}
  .hero-actions .btn{flex:1;min-width:140px}
  .btn{height:48px;padding:0 20px}
  .section-head h2{font-size:1.55rem}
  .spec-num{font-size:28px}
  .search-btn{padding:0 16px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg:#F6F6F2;
  --dark:#0B0C0E;
  --dark-2:#14161A;
  --surface:#FFFFFF;
  --surface-2:#ECEDE8;
  --text:#111214;
  --muted:#5C6167;
  --line:#D9DDD3;
  --lime:#C8FF2E;
  --lime-deep:#A8DE12;
  --orange:#FF4D1F;
  --ok:#16A34A;
  --warn:#F59E0B;
  --err:#DC2626;
  --radius-card:20px;
  --radius-btn:999px;
  --radius-input:12px;
  --shadow-1:0 12px 30px rgba(0,0,0,.06);
  --shadow-2:0 18px 44px rgba(0,0,0,.10);
  --container:1320px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.8;
  font-weight:400;
  letter-spacing:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--text);}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-0.03em;font-weight:900;line-height:1.2;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--lime);color:var(--dark);}
:focus-visible{outline:3px solid var(--lime);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 28px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(246,246,242,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 34px rgba(0,0,0,.09);background:rgba(246,246,242,.97);}
.nav-top-inner{
  display:flex;align-items:center;gap:24px;
  padding-top:16px;padding-bottom:14px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:48px;height:48px;border-radius:14px;
  background:var(--dark);color:var(--lime);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:15px;letter-spacing:.02em;
  box-shadow:var(--shadow-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:17px;font-weight:900;letter-spacing:-.02em;white-space:nowrap;}
.brand-text span{font-size:12.5px;color:var(--muted);letter-spacing:.06em;}
.nav-search{
  flex:1 1 auto;max-width:660px;margin:0 auto;
  display:flex;align-items:center;gap:10px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  padding:6px 6px 6px 18px;
  height:56px;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.nav-search:focus-within{border-color:var(--lime);box-shadow:0 0 0 4px rgba(200,255,46,.35),var(--shadow-1);}
.search-icon{width:20px;height:20px;color:var(--muted);flex:0 0 auto;}
.nav-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:15.5px;color:var(--text);
}
.nav-search input::placeholder{color:#9AA09A;}
.search-btn{
  flex:0 0 auto;height:44px;padding:0 26px;border-radius:var(--radius-btn);
  background:var(--lime);color:var(--dark);font-weight:800;font-size:15px;
  transition:background .2s ease,transform .15s ease;
}
.search-btn:hover{background:var(--lime-deep);transform:translateY(-1px);}
.search-btn:active{transform:translateY(1px);}
.nav-cta{flex:0 0 auto;white-space:nowrap;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  font-weight:800;font-size:15.5px;
  padding:0 28px;height:54px;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  border:1px solid transparent;
}
.btn-primary{background:var(--lime);color:var(--dark);box-shadow:0 10px 24px rgba(168,222,18,.32);}
.btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:var(--shadow-2);color:var(--dark);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{background:var(--surface-2);transform:translateY(-2px);}
.btn-dark{background:var(--dark);color:#fff;}
.btn-dark:hover{background:#23262b;transform:translateY(-2px);color:#fff;}
.btn-sm{height:46px;padding:0 22px;font-size:14.5px;}
.nav-cats{border-top:1px solid var(--line);}
.cats-scroll{
  display:flex;align-items:center;gap:10px;
  padding-top:10px;padding-bottom:12px;
  overflow-x:auto;scrollbar-width:none;
}
.cats-scroll::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;
  padding:9px 20px;border-radius:var(--radius-btn);
  background:var(--surface-2);color:#3C4147;
  font-size:14.5px;font-weight:700;white-space:nowrap;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .18s ease;
}
.pill:hover{background:#E1E3DB;color:var(--text);transform:translateY(-1px);}
.pill.is-active{background:var(--lime);color:var(--dark);}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-dark{background:var(--dark);color:#EDEFEA;}
.section-dark .muted{color:#9CA3A8;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--lime);display:block;}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head h2{font-size:clamp(1.8rem,3.2vw,3rem);margin:18px 0 16px;}
.section-head p{color:var(--muted);font-size:17px;}
.muted{color:var(--muted);}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- 内页 Hero ---------- */
.cat-hero{
  position:relative;
  background:linear-gradient(180deg,#F9F9F5 0%,var(--bg) 100%);
  padding:64px 0 80px;
  overflow:hidden;
}
.cat-hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted);margin-bottom:22px;}
.breadcrumb a:hover{color:var(--text);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--lime);}
.breadcrumb span{color:#B4B9B2;}
.cat-hero h1{font-size:clamp(2rem,4.2vw,3.6rem);margin-bottom:22px;}
.cat-hero h1 em{
  font-style:normal;
  background:linear-gradient(180deg,transparent 62%,var(--lime) 62%);
  padding:0 4px;
}
.cat-hero .lead{font-size:18px;color:var(--muted);max-width:620px;margin-bottom:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 15px;border-radius:var(--radius-btn);
  background:var(--surface);border:1px solid var(--line);
  font-size:13.5px;font-weight:700;color:#3C4147;
}
.tag-lime{background:var(--lime);border-color:var(--lime);color:var(--dark);}
.tag-orange{background:rgba(255,77,31,.1);border-color:rgba(255,77,31,.3);color:var(--orange);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-visual{
  position:relative;border-radius:28px;overflow:hidden;
  box-shadow:var(--shadow-2);
  aspect-ratio:4/3;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,12,14,0) 40%,rgba(11,12,14,.72) 100%);
}
.hero-visual-card{
  position:absolute;left:22px;right:22px;bottom:22px;z-index:2;
  background:rgba(255,255,255,.96);border-radius:16px;padding:16px 18px;
  display:flex;align-items:center;gap:14px;
  box-shadow:var(--shadow-1);
}
.hero-visual-card .dot{
  width:38px;height:38px;border-radius:12px;background:var(--dark);color:var(--lime);
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:14px;flex:0 0 auto;
}
.hero-visual-card b{display:block;font-size:15px;}
.hero-visual-card span{font-size:13px;color:var(--muted);}

/* ---------- 步骤流 ---------- */
.steps{position:relative;}
.step{
  display:grid;grid-template-columns:120px 1fr;gap:32px;
  padding:34px 0;
  border-top:1px solid var(--line);
}
.step:last-child{border-bottom:1px solid var(--line);}
.step-num{
  font-size:52px;font-weight:900;line-height:1;
  color:transparent;-webkit-text-stroke:1.6px #C3C8BD;
  letter-spacing:-.04em;
  font-variant-numeric:tabular-nums;
}
.step.is-key .step-num{color:var(--lime);-webkit-text-stroke:0;}
.step-body h3{font-size:1.35rem;margin-bottom:10px;}
.step-body p{color:var(--muted);max-width:760px;}
.step-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.step-meta .tag{background:var(--surface-2);border-color:transparent;font-size:13px;}

/* ---------- 对比卡 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:34px 32px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.compare-card h3{font-size:1.3rem;margin-bottom:8px;}
.compare-card .sub{font-size:14px;color:var(--muted);margin-bottom:18px;}
.compare-card ul li{
  display:flex;gap:12px;padding:11px 0;border-top:1px dashed var(--line);
  font-size:15.5px;color:#3C4147;
}
.compare-card ul li:first-of-type{border-top:0;}
.check{
  width:20px;height:20px;border-radius:50%;flex:0 0 auto;margin-top:5px;
  background:var(--lime);color:var(--dark);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:900;
}
.dash{
  width:20px;height:20px;border-radius:50%;flex:0 0 auto;margin-top:5px;
  background:var(--surface-2);color:var(--muted);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:900;
}
.compare-card.is-recommend{border-color:var(--lime);box-shadow:0 18px 44px rgba(168,222,18,.20);}
.badge-recommend{
  display:inline-block;margin-bottom:14px;
  padding:5px 13px;border-radius:var(--radius-btn);
  background:var(--lime);color:var(--dark);font-size:12.5px;font-weight:900;
}

/* ---------- 检查清单 ---------- */
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.check-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  padding:22px 24px;
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.check-item:hover{border-color:var(--lime);transform:translateY(-3px);box-shadow:var(--shadow-1);}
.check-box{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;margin-top:3px;
  border:2px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:900;color:transparent;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.check-item:hover .check-box{background:var(--lime);border-color:var(--lime);color:var(--dark);}
.check-item b{display:block;font-size:16.5px;margin-bottom:6px;}
.check-item p{font-size:14.5px;color:var(--muted);}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.stat{
  border-left:2px solid var(--lime);padding-left:22px;
}
.stat b{display:block;font-size:clamp(2rem,3vw,2.8rem);font-weight:900;font-variant-numeric:tabular-nums;letter-spacing:-.04em;}
.stat span{font-size:14.5px;color:#9CA3A8;}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.scene-card img{width:100%;height:216px;object-fit:cover;transition:transform .5s ease;}
.scene-card:hover img{transform:scale(1.05);}
.scene-body{padding:26px 28px 30px;}
.scene-body h3{font-size:1.25rem;margin-bottom:10px;}
.scene-body p{color:var(--muted);font-size:15.5px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item.is-open{border-color:var(--lime);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 28px;text-align:left;font-size:17px;font-weight:800;letter-spacing:-.01em;
}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  background:var(--surface-2);color:var(--dark);
  display:flex;align-items:center;justify-content:center;
  transition:transform .3s ease,background .25s ease;
  font-size:18px;font-weight:800;line-height:1;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--lime);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a-inner{
  padding:0 28px 26px;color:var(--muted);font-size:15.5px;
  border-top:1px solid var(--line);padding-top:20px;margin-top:0;
}
.faq-item.is-open .faq-a{background:#F2F3EE;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--dark);color:#F2F3EE;
  border-radius:28px;padding:64px 56px;
  display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,255,46,.28),rgba(200,255,46,0) 70%);
}
.cta-band h2{font-size:clamp(1.7rem,2.8vw,2.6rem);margin-bottom:16px;color:#fff;}
.cta-band p{color:#A9AFB4;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.28);color:#F2F3EE;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#B9BEC2;margin-top:96px;padding-top:72px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;
  padding-bottom:56px;
}
.footer-brand .brand-text b{color:#fff;}
.footer-brand .brand-text span{color:#8D9398;}
.footer-brand p{font-size:14.5px;color:#9CA3A8;margin:22px 0 24px;max-width:420px;}
.footer-search{
  display:flex;gap:8px;background:#171A1E;border:1px solid #262A2F;
  border-radius:var(--radius-btn);padding:6px 6px 6px 16px;max-width:400px;
}
.footer-search input{flex:1;min-width:0;border:0;background:transparent;color:#EDEFEA;outline:none;font-size:14.5px;}
.footer-search input::placeholder{color:#75797E;}
.footer-search button{
  background:var(--lime);color:var(--dark);font-weight:800;font-size:14px;
  border-radius:var(--radius-btn);padding:0 20px;height:42px;
  transition:background .2s ease;
}
.footer-search button:hover{background:var(--lime-deep);}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:20px;}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14.5px;color:#9CA3A8;transition:color .2s ease;}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{border-top:1px solid #22262B;padding:24px 0 34px;}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;}
.footer-bottom p{font-size:13.5px;color:#7E848A;}
.footer-bottom .tech a{color:#9CA3A8;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom .tech a:hover{color:var(--lime);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px;}
  .nav-search{max-width:520px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .cat-hero-grid{grid-template-columns:1fr;gap:40px;}
  .cat-hero{padding:44px 0 60px;}
  .nav-top-inner{flex-wrap:wrap;gap:14px;}
  .nav-search{order:3;max-width:100%;flex:1 1 100%;margin:0;}
  .nav-cta{margin-left:auto;}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px;}
  .cta-band{grid-template-columns:1fr;padding:48px 36px;}
  .step{grid-template-columns:88px 1fr;gap:24px;}
  .step-num{font-size:42px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .compare-grid,.checklist,.scene-grid{grid-template-columns:1fr;}
  .brand-text span{display:none;}
  .brand-mark{width:42px;height:42px;border-radius:12px;font-size:13px;}
  .brand-text b{font-size:15px;}
  .nav-search{height:52px;}
  .search-btn{height:40px;padding:0 18px;font-size:14px;}
  .nav-cta{height:46px;padding:0 18px;font-size:14px;}
  .hero-visual{aspect-ratio:16/11;border-radius:22px;}
  .cta-band{border-radius:22px;padding:40px 24px;}
  .footer-grid{grid-template-columns:1fr;gap:34px;padding-bottom:40px;}
  .site-footer{margin-top:64px;padding-top:52px;}
  .step{grid-template-columns:1fr;gap:12px;padding:26px 0;}
  .step-num{font-size:34px;}
  .faq-q{padding:20px;font-size:16px;}
  .faq-a-inner{padding:0 20px 22px;padding-top:18px;}
}
@media (max-width:519px){
  .stats{grid-template-columns:1fr;gap:22px;}
  .hero-actions .btn{width:100%;}
  .hero-visual-card{left:14px;right:14px;bottom:14px;padding:13px 14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --bg:#F6F6F2;
  --dark:#0B0C0E;
  --white:#FFFFFF;
  --surface:#ECEDE8;
  --text:#111214;
  --muted:#5C6167;
  --line:#D9DDD3;
  --lime:#C8FF2E;
  --orange:#FF4D1F;
  --green:#16A34A;
  --amber:#F59E0B;
  --red:#DC2626;
  --r-card:20px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:16px;
  --shadow-sm:0 12px 30px rgba(0,0,0,.06);
  --shadow-lg:0 18px 44px rgba(0,0,0,.10);
  --container:1280px;
  --section-y:100px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.8;
  font-weight:400;
  letter-spacing:0;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
a:not(.btn):not(.pill):not(.brand):hover{color:var(--text);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.03em;line-height:1.18;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:3px solid var(--lime);outline-offset:3px;border-radius:6px;}
::selection{background:var(--lime);color:var(--dark);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 30px;border-radius:var(--r-btn);
  font-size:16px;font-weight:800;letter-spacing:-.01em;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--dark);box-shadow:0 10px 24px rgba(200,255,46,.32);}
.btn-primary:hover{background:#b9f01c;transform:translateY(-2px);box-shadow:0 16px 32px rgba(200,255,46,.42);color:var(--dark);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(200,255,46,.3);}
.btn-dark{background:var(--dark);color:#fff;}
.btn-dark:hover{background:#202226;transform:translateY(-2px);box-shadow:var(--shadow-lg);color:#fff;}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line);}
.btn-ghost:hover{background:var(--surface);transform:translateY(-2px);color:var(--text);}
.btn-disabled,.btn[disabled]{opacity:.45;pointer-events:none;}
.btn-sm{padding:11px 22px;font-size:15px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(246,246,242,.92);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background-color .3s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px rgba(11,12,14,.10);background:rgba(246,246,242,.97);}
.nav-top-inner{
  display:grid;
  grid-template-columns:auto minmax(280px,1fr) auto;
  align-items:center;
  gap:26px;
  padding:14px 24px;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex:none;}
.brand-mark{
  width:46px;height:46px;flex:none;
  display:grid;place-items:center;
  background:var(--dark);color:var(--lime);
  border-radius:14px;font-weight:900;font-size:15px;letter-spacing:.04em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:17px;font-weight:900;letter-spacing:-.02em;}
.brand-text span{font-size:12px;color:var(--muted);letter-spacing:.08em;}
.nav-search{
  position:relative;display:flex;align-items:center;
  width:100%;max-width:660px;margin:0 auto;
  height:56px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:0 6px 0 48px;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.nav-search:focus-within{border-color:var(--lime);box-shadow:0 0 0 4px rgba(200,255,46,.42),var(--shadow-sm);}
.search-icon{position:absolute;left:18px;width:20px;height:20px;color:var(--muted);}
.nav-search input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;outline:none;
  font-size:15px;
}
.nav-search input::placeholder{color:#9AA0A6;}
.search-btn{
  flex:none;height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--dark);color:#fff;font-weight:800;font-size:15px;
  transition:background-color .22s ease,transform .22s ease;
}
.search-btn:hover{background:#24262b;color:#fff;}
.search-btn:active{transform:scale(.97);}
.nav-cta{padding:14px 26px;font-size:15px;}
.nav-cats{border-top:1px solid var(--line);}
.cats-scroll{
  display:flex;gap:10px;align-items:center;
  padding:12px 24px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.cats-scroll::-webkit-scrollbar{display:none;}
.pill{
  flex:none;display:inline-flex;align-items:center;
  padding:9px 20px;border-radius:var(--r-btn);
  background:var(--surface);color:#3C4045;
  font-size:15px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.pill:hover{background:#E2E4DC;color:var(--text);transform:translateY(-1px);}
.pill.is-active{background:var(--lime);color:var(--dark);font-weight:800;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-y) 0;}
.section-tight{padding:72px 0;}
.section-head{margin-bottom:44px;max-width:820px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:800;letter-spacing:.16em;
  color:var(--muted);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--lime);display:block;}
.h2{font-size:clamp(1.8rem,3.2vw,3rem);}
.h3{font-size:clamp(1.15rem,1.6vw,1.45rem);font-weight:800;}
.lead{font-size:17px;color:var(--muted);margin-top:16px;max-width:760px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-btn);
  font-size:13px;font-weight:800;
  background:var(--surface);color:#33373C;
}
.badge-lime{background:var(--lime);color:var(--dark);}
.badge-dark{background:var(--dark);color:#fff;}
.badge-orange{background:rgba(255,77,31,.12);color:var(--orange);}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:76px 0 88px;
  overflow:hidden;
  background-image:linear-gradient(180deg,rgba(246,246,242,.86) 0%,rgba(246,246,242,.96) 62%,var(--bg) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center right;
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center;}
.hero h1{
  font-size:clamp(2.2rem,4.6vw,4.2rem);
  margin:18px 0 22px;
}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap;}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:.04em;height:.24em;
  background:var(--lime);z-index:-1;border-radius:4px;
}
.hero-sub{font-size:18px;color:#3D4147;max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-search{
  display:flex;align-items:center;gap:8px;
  margin-top:30px;max-width:600px;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-input);padding:8px 8px 8px 18px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .25s ease,border-color .25s ease;
}
.hero-search:focus-within{border-color:var(--lime);box-shadow:0 0 0 4px rgba(200,255,46,.36),var(--shadow-sm);}
.hero-search input{flex:1;min-width:0;height:44px;border:0;background:transparent;outline:none;font-size:15px;}
.hero-search input::placeholder{color:#9AA0A6;}
.hero-search button{
  flex:none;height:44px;padding:0 24px;border-radius:10px;
  background:var(--dark);color:#fff;font-weight:800;
  transition:background-color .2s ease;
}
.hero-search button:hover{background:#25272c;color:#fff;}
.search-hint{font-size:13px;color:var(--muted);margin-top:12px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:38px;}
.hero-stats .stat b{display:block;font-size:28px;font-weight:900;letter-spacing:-.03em;}
.hero-stats .stat span{font-size:13px;color:var(--muted);}
.hero-visual{position:relative;}
.hero-frame{
  position:relative;
  aspect-ratio:9/16;
  max-width:392px;margin-left:auto;
  border-radius:26px;overflow:hidden;
  background:var(--dark);
  box-shadow:var(--shadow-lg);
  border:1px solid rgba(11,12,14,.08);
}
.hero-frame img{width:100%;height:100%;object-fit:cover;opacity:.94;}
.hero-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,12,14,0) 42%,rgba(11,12,14,.82) 100%);
}
.hero-frame-cap{
  position:absolute;left:22px;right:22px;bottom:22px;z-index:2;color:#fff;
}
.hero-frame-cap b{display:block;font-size:19px;font-weight:900;margin-bottom:6px;}
.hero-frame-cap span{font-size:13px;color:rgba(255,255,255,.78);}
.hero-float{
  position:absolute;left:-10px;bottom:52px;
  background:var(--white);border:1px solid var(--line);
  border-radius:18px;padding:16px 20px;box-shadow:var(--shadow-lg);
  display:flex;align-items:center;gap:14px;max-width:250px;
}
.hero-float .score{font-size:26px;font-weight:900;letter-spacing:-.03em;}
.hero-float small{display:block;font-size:12px;color:var(--muted);}
.stars{color:var(--amber);font-size:14px;letter-spacing:2px;}

/* ---------- 入口通道列表 ---------- */
.channel-list{display:flex;flex-direction:column;gap:16px;}
.channel{
  display:grid;grid-template-columns:96px 1fr auto;gap:28px;align-items:center;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 28px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#C9CEC2;}
.channel-num{
  font-size:34px;font-weight:900;letter-spacing:-.04em;
  color:transparent;-webkit-text-stroke:1.4px var(--text);
  font-variant-numeric:tabular-nums;
}
.channel-body h3{font-size:19px;font-weight:900;margin-bottom:6px;}
.channel-body p{font-size:15px;color:var(--muted);margin:0;}
.channel-meta{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap;}
.channel-thumb{
  width:132px;height:86px;border-radius:14px;overflow:hidden;flex:none;
  background:var(--surface);
}
.channel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.channel:hover .channel-thumb img{transform:scale(1.06);}

/* ---------- 口碑墙 ---------- */
.voices{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.marquee{
  overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
}
.marquee + .marquee{margin-top:22px;}
.marquee-track{display:flex;gap:22px;width:max-content;animation:slide 52s linear infinite;}
.marquee-track.reverse{animation-duration:64s;animation-direction:reverse;}
.marquee:hover .marquee-track{animation-play-state:paused;}
@keyframes slide{from{transform:translateX(0);}to{transform:translateX(-50%);}}
.voice-card{
  width:344px;flex:none;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.voice-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:none;
  display:grid;place-items:center;font-weight:900;font-size:16px;
  background:var(--lime);color:var(--dark);
}
.voice-top b{display:block;font-size:15px;font-weight:800;}
.voice-top small{font-size:12px;color:var(--muted);}
.voice-card p{font-size:15px;color:#3D4147;margin:0 0 14px;}
.voice-foot{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);}

/* ---------- 排查时间线 ---------- */
.timeline{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line);}
.tl-item{
  display:grid;grid-template-columns:120px 1fr;gap:34px;
  padding:32px 0;border-bottom:1px solid var(--line);
  transition:background-color .25s ease,padding-left .25s ease;
}
.tl-item:hover{background:rgba(255,255,255,.7);padding-left:12px;}
.tl-index{font-size:44px;font-weight:900;letter-spacing:-.05em;line-height:1;color:var(--lime);-webkit-text-stroke:1.2px var(--dark);}
.tl-body h3{font-size:19px;font-weight:900;margin-bottom:8px;}
.tl-body p{color:var(--muted);font-size:16px;margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.78fr 1.22fr;gap:56px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item:hover{border-color:#C9CEC2;box-shadow:var(--shadow-sm);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;font-size:17px;font-weight:800;
  transition:background-color .25s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:none;width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--surface);color:var(--dark);
  font-size:20px;font-weight:700;line-height:1;
  transition:transform .3s ease,background-color .25s ease;
}
.faq-item[open] summary{background:var(--surface);}
.faq-item[open] summary::after{transform:rotate(45deg);background:var(--lime);}
.faq-body{padding:20px 26px 26px;color:#3D4147;font-size:16px;background:var(--surface);}
.faq-body p{margin:0;}

/* ---------- CTA ---------- */
.cta-band{background:var(--dark);color:#fff;border-radius:28px;padding:64px 56px;position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,255,46,.28),rgba(200,255,46,0) 68%);
}
.cta-band h2{font-size:clamp(1.7rem,3vw,2.6rem);position:relative;}
.cta-band p{color:rgba(255,255,255,.72);max-width:640px;margin-top:16px;position:relative;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;position:relative;}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.28);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;}

/* ---------- 空态 / 搜索反馈 ---------- */
.empty-card{
  display:flex;align-items:center;gap:18px;
  background:var(--surface);border:1px dashed #C4C9BD;border-radius:var(--r-card);
  padding:26px 28px;color:var(--muted);
}
.empty-card .ico{
  width:46px;height:46px;flex:none;border-radius:14px;background:var(--white);
  display:grid;place-items:center;font-size:20px;font-weight:900;color:var(--dark);
  border:1px solid var(--line);
}
.empty-card b{display:block;color:var(--text);font-size:16px;margin-bottom:2px;}
.search-result{margin-top:18px;font-size:15px;}
.search-result.error{color:var(--red);}
.search-result.ok{color:var(--green);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#fff;margin-top:0;padding-top:76px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;padding-bottom:56px;}
.footer-brand .brand-mark{background:var(--lime);color:var(--dark);}
.footer-brand .brand-text b{color:#fff;}
.footer-brand .brand-text span{color:rgba(255,255,255,.55);}
.footer-brand p{color:rgba(255,255,255,.66);font-size:15px;margin:20px 0 22px;max-width:380px;}
.footer-search{display:flex;gap:8px;max-width:380px;}
.footer-search input{
  flex:1;min-width:0;height:52px;border-radius:var(--r-input);
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  padding:0 16px;color:#fff;outline:none;font-size:15px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.footer-search input::placeholder{color:rgba(255,255,255,.45);}
.footer-search input:focus{border-color:var(--lime);box-shadow:0 0 0 4px rgba(200,255,46,.3);}
.footer-search button{
  flex:none;height:52px;padding:0 22px;border-radius:var(--r-input);
  background:var(--lime);color:var(--dark);font-weight:800;
  transition:background-color .22s ease;
}
.footer-search button:hover{background:#b9f01c;}
.footer-col h4{font-size:15px;font-weight:800;margin-bottom:20px;color:#fff;letter-spacing:0;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{color:rgba(255,255,255,.66);font-size:15px;transition:color .2s ease;}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:24px;padding-bottom:24px;
}
.footer-bottom p{margin:0;color:rgba(255,255,255,.5);font-size:13px;}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:var(--lime);}

/* ---------- 跟买条 / 回顶 ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:110;
  display:none;align-items:center;gap:12px;
  background:rgba(11,12,14,.96);backdrop-filter:blur(10px);
  border-top:1px solid rgba(255,255,255,.1);
  padding:10px 16px;
  transform:translateY(110%);
  transition:transform .35s ease;
}
.sticky-bar.show{transform:translateY(0);}
.sticky-bar .btn-primary{flex:6;padding:14px 18px;}
.sticky-bar .icon-btn{
  flex:1;height:50px;border-radius:14px;
  background:rgba(255,255,255,.1);color:#fff;
  display:grid;place-items:center;font-size:18px;
}
.to-top{
  position:fixed;right:24px;bottom:32px;z-index:100;
  width:52px;height:52px;border-radius:50%;
  background:var(--dark);color:var(--lime);
  display:grid;place-items:center;font-size:18px;font-weight:800;
  box-shadow:var(--shadow-lg);
  opacity:0;pointer-events:none;
  transition:opacity .3s ease,transform .3s ease;
}
.to-top.show{opacity:1;pointer-events:auto;}
.to-top:hover{transform:translateY(-3px);color:var(--lime);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease;}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--section-y:84px;}
  .hero-grid{gap:44px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
}
@media (max-width:991px){
  :root{--section-y:72px;}
  .nav-top-inner{grid-template-columns:auto auto;justify-content:space-between;row-gap:12px;padding:12px 24px 8px;}
  .nav-search{grid-column:1/-1;order:3;max-width:100%;height:54px;}
  .nav-cta{padding:12px 20px;font-size:14px;}
  .hero{padding:52px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-frame{max-width:340px;margin:0 auto;}
  .hero-float{left:0;bottom:24px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .channel{grid-template-columns:72px 1fr;gap:20px;}
  .channel-thumb{width:100%;height:150px;grid-column:1/-1;}
  .channel-cta{grid-column:1/-1;}
}
@media (max-width:767px){
  body{font-size:16px;}
  :root{--section-y:60px;}
  .container{padding:0 18px;}
  .brand-text b{font-size:15px;}
  .brand-text span{font-size:11px;}
  .brand-mark{width:42px;height:42px;font-size:13px;}
  .hero h1{font-size:clamp(1.9rem,8vw,2.6rem);}
  .hero-search{flex-wrap:wrap;padding:10px;gap:10px;}
  .hero-search input{flex:1 1 100%;padding:0 8px;}
  .hero-search button{width:100%;}
  .cta-band{padding:44px 26px;border-radius:22px;}
  .voice-card{width:280px;padding:20px;}
  .tl-item{grid-template-columns:1fr;gap:12px;}
  .tl-index{font-size:34px;}
  .sticky-bar{display:flex;}
  .to-top{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:34px;}
  .footer-bottom .container{flex-direction:column;}
}
@media (max-width:575px){
  .hero-stats{gap:24px;}
  .hero-stats .stat b{font-size:23px;}
  .channel{padding:20px;}
  .faq-item summary{padding:18px 20px;font-size:16px;}
  .faq-body{padding:16px 20px 22px;}
  .btn{padding:14px 24px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}