/* roulang page: index */
:root{
  --bg-base:#070C16;
  --bg-elev1:#0E1626;
  --bg-elev2:#131E33;
  --bg-elev3:#1A2740;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --primary:#17E0C4;
  --primary-soft:rgba(23,224,196,.14);
  --accent:#FF6B2C;
  --accent-2:#FFD166;
  --text-1:#EAF2FF;
  --text-2:#A9B6CC;
  --text-3:#6B7A93;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#F87171;
  --glow-primary:0 6px 26px rgba(23,224,196,.34);
  --glow-accent:0 6px 26px rgba(255,107,44,.30);
  --r-card:16px;
  --r-card-lg:20px;
  --r-btn:11px;
  --r-input:10px;
  --r-pill:999px;
  --shadow-card:0 10px 30px rgba(0,0,0,.38);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
figure{margin:0}
:focus-visible{outline:2px solid rgba(23,224,196,.55);outline-offset:2px;border-radius:4px}
::selection{background:rgba(23,224,196,.28);color:#fff}

/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:560px){.container{padding:0 20px}}

/* ============ 顶部公告 ============ */
.topbar{background:#040811;border-bottom:1px solid var(--line);font-size:13px;color:var(--text-2)}
.topbar__inner{display:flex;align-items:center;justify-content:center;gap:10px;height:36px;text-align:center}
.topbar__dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);flex:0 0 auto}
.topbar__strong{color:var(--text-1);font-weight:600}
.topbar__sep{color:var(--line-strong)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:80;border-bottom:1px solid transparent;background:transparent;transition:background .25s var(--ease),backdrop-filter .25s var(--ease),border-color .25s var(--ease)}
.site-header.is-scrolled{background:rgba(7,12,22,.86);-webkit-backdrop-filter:blur(12px) saturate(120%);backdrop-filter:blur(12px) saturate(120%);border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;min-width:0}
.logo__mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#0C9C88);display:grid;place-items:center;color:#04231E;font-weight:900;font-size:15px;letter-spacing:-.02em;box-shadow:var(--glow-primary);flex:0 0 auto}
.logo__text{font-size:19px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.logo__tag{font-size:11px;font-weight:600;padding:2px 7px;border-radius:var(--r-pill);background:var(--primary-soft);color:var(--primary);border:1px solid rgba(23,224,196,.3);flex:0 0 auto}
.nav__links{display:flex;align-items:center;gap:4px}
.nav__links a{position:relative;display:inline-flex;align-items:center;padding:10px 14px;border-radius:10px;font-size:15px;font-weight:600;color:var(--text-2);transition:color .2s var(--ease),background .2s var(--ease)}
.nav__links a:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav__links a.is-active{color:var(--text-1)}
.nav__links a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(23,224,196,.85)}
.nav__right{display:flex;align-items:center;gap:12px}
.nav__toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px;background:rgba(255,255,255,.03)}
.nav__toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav__toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav__toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav__toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动抽屉 */
.mobile-drawer{position:fixed;inset:0;z-index:90;background:var(--bg-elev1);padding:88px 20px 32px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-14px);transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-drawer a.m-link{display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 12px;border-bottom:1px solid var(--line);font-size:18px;font-weight:600;color:var(--text-1)}
.mobile-drawer a.m-link.is-active{color:var(--primary)}
.mobile-drawer .m-foot{margin-top:24px;display:flex;flex-direction:column;gap:14px}
.mobile-drawer .m-contact{font-size:14px;color:var(--text-2);line-height:1.9}
.mobile-drawer .m-contact strong{color:var(--text-1);font-weight:600}
.mobile-close{position:absolute;top:18px;right:20px;width:44px;height:44px;border-radius:10px;border:1px solid var(--line-strong);display:grid;place-items:center;font-size:20px;color:var(--text-2)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;white-space:nowrap;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease),color .2s var(--ease)}
.btn--lg{height:48px;padding:0 28px}
.btn--sm{height:32px;padding:0 14px;font-size:13px}
.btn--block{width:100%}
.btn--primary{background:var(--primary);color:#04231E;box-shadow:var(--glow-primary)}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 34px rgba(23,224,196,.46)}
.btn--primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(23,224,196,.3)}
.btn--accent{background:var(--accent);color:#2A0E02;box-shadow:var(--glow-accent)}
.btn--accent:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 34px rgba(255,107,44,.42)}
.btn--accent:active{transform:translateY(0);box-shadow:0 4px 16px rgba(255,107,44,.28)}
.btn--ghost{background:transparent;border:1px solid var(--line-strong);color:var(--text-1)}
.btn--ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.32)}
.btn--ghost:active{background:rgba(255,255,255,.03)}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;filter:none}

/* ============ 标签 / 徽章 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1.6;background:var(--primary-soft);color:var(--primary);border:1px solid rgba(23,224,196,.28)}
.badge--accent{background:rgba(255,107,44,.14);color:var(--accent);border-color:rgba(255,107,44,.3)}
.badge--muted{background:rgba(255,255,255,.05);color:var(--text-2);border-color:var(--line)}
.badge--amber{background:rgba(255,209,102,.14);color:var(--accent-2);border-color:rgba(255,209,102,.3)}
.tag-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);font-size:13px;font-weight:600;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);transition:.2s var(--ease)}
.tag-pill:hover{color:var(--text-1);border-color:var(--line-strong)}
.tag-pill.is-on{background:var(--primary-soft);color:var(--primary);border-color:rgba(23,224,196,.35)}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:64px 0 88px;background:radial-gradient(60% 55% at 50% 0%,rgba(23,224,196,.16),transparent 70%)}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:68px 68px;-webkit-mask-image:radial-gradient(72% 62% at 50% 0%,#000,transparent);mask-image:radial-gradient(72% 62% at 50% 0%,#000,transparent)}
.hero__grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.hero__copy{max-width:560px}
.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;padding:6px 14px;border-radius:var(--r-pill);background:var(--primary-soft);border:1px solid rgba(23,224,196,.28);color:var(--primary);font-size:13px;font-weight:600}
.hero h1{font-size:clamp(30px,4.6vw,54px);line-height:1.15;font-weight:800;letter-spacing:-.01em;margin:0 0 20px}
.hero h1 .hl{color:var(--primary);display:inline-block}
.hero__sub{font-size:17px;color:var(--text-2);margin-bottom:28px;max-width:520px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero__trust{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--text-2)}
.hero__trust li{display:inline-flex;align-items:center;gap:7px}
.hero__trust i{color:var(--primary);font-size:13px}
.hero__visual{position:relative;border-radius:var(--r-card-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);background:var(--bg-elev2)}
.hero__visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero__visual::after{content:"";position:absolute;inset:0;background:linear-gradient(to bottom,rgba(7,12,22,.05) 35%,rgba(7,12,22,.92) 100%);pointer-events:none}
.hero__stats{position:absolute;left:20px;right:20px;bottom:20px;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:16px 18px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid var(--line);-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);box-shadow:inset 0 1px 0 rgba(255,255,255,.10)}
.hero__stat b{display:block;font-size:24px;font-weight:800;color:var(--accent-2);font-variant-numeric:tabular-nums;letter-spacing:-.01em;line-height:1.2}
.hero__stat span{font-size:12px;color:var(--text-2)}

/* ============ 指标条 ============ */
.metrics{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-elev1)}
.metrics__grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metrics__item{padding:30px 20px;border-right:1px solid var(--line);text-align:center}
.metrics__item:last-child{border-right:0}
.metrics__num{display:block;font-size:30px;font-weight:800;line-height:1.15;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.metrics__num em{font-style:normal;color:var(--primary);font-size:20px;margin-left:2px}
.metrics__label{display:block;margin-top:6px;font-size:13px;color:var(--text-3)}

/* ============ 板块通用 ============ */
.section{padding:96px 0}
.section--alt{background:var(--bg-elev1)}
.section--tight{padding-top:0}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section__title{font-size:clamp(23px,3vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.section__title .thin{color:var(--text-3);font-weight:600}
.section__desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:660px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);transition:.2s var(--ease)}
.link-more:hover{text-decoration:underline}
.link-more i{font-size:12px}

/* ============ 商品卡片 ============ */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{display:flex;flex-direction:column;background:var(--bg-elev2);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);overflow:hidden;transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-card),0 0 0 1px var(--primary-soft),0 14px 38px rgba(23,224,196,.16)}
.card__media{position:relative;overflow:hidden;background:var(--bg-elev2)}
.card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card__media img{transform:scale(1.04)}
.card__media .badge{position:absolute;top:12px;left:12px;z-index:2;background:rgba(7,12,22,.78);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.card__body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
.card__title{font-size:18px;font-weight:700;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__desc{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.card__meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
.card__price{font-size:20px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.card__price del{margin-left:8px;font-size:13px;font-weight:500;color:var(--text-3)}
.card__rate{display:inline-flex;align-items:center;gap:5px;font-size:13px;color:var(--accent-2);font-variant-numeric:tabular-nums}
.card__rate span{color:var(--text-3)}
.card__actions{display:flex;gap:10px;margin-top:12px}
.card--feature{grid-column:span 2;display:grid;grid-template-columns:1.1fr 1fr}
.card--feature .card__media{height:100%}
.card--feature .card__media img{height:100%;aspect-ratio:auto;min-height:320px}
.card--feature .card__body{padding:28px}
.card--feature .card__title{font-size:24px;line-height:1.3}
.card-feature-points{display:flex;flex-direction:column;gap:8px;margin:4px 0 2px}
.card-feature-points li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--text-2)}
.card-feature-points i{color:var(--primary);font-size:12px;margin-top:6px}
.card--feature .card__price{font-size:26px}

/* ============ 评价轮播 ============ */
.reviews{position:relative}
.reviews__viewport{position:relative}
.reviews__track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 10px;scrollbar-width:none;-ms-overflow-style:none}
.reviews__track::-webkit-scrollbar{display:none}
.review-card{flex:0 0 350px;scroll-snap-align:start;padding:24px;border-radius:var(--r-card);background:rgba(255,255,255,.05);border:1px solid var(--line);-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);box-shadow:inset 0 1px 0 rgba(255,255,255,.10)}
.review-card__top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:44px;height:44px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;font-weight:800;font-size:15px;color:#04231E;background:linear-gradient(135deg,var(--primary),#0C9C88)}
.review-card__name{font-size:15px;font-weight:700}
.review-card__role{font-size:12px;color:var(--text-3)}
.stars{display:flex;gap:3px;color:var(--accent-2);font-size:13px;margin-bottom:10px}
.review-card__text{font-size:14px;color:var(--text-2);line-height:1.8}
.review-card__sku{margin-top:14px;font-size:12px;color:var(--text-3)}
.reviews__nav{display:flex;align-items:center;gap:10px}
.icon-btn{width:44px;height:44px;border-radius:50%;border:1px solid var(--line-strong);display:grid;place-items:center;color:var(--text-1);background:rgba(255,255,255,.03);transition:.2s var(--ease)}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);box-shadow:0 0 18px rgba(23,224,196,.28)}
.reviews__dots{display:flex;justify-content:center;gap:8px;margin-top:24px}
.rev-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.18);transition:.2s var(--ease)}
.rev-dot.is-active{background:var(--primary);width:22px;border-radius:var(--r-pill);box-shadow:0 0 12px rgba(23,224,196,.7)}

/* ============ 保障条 ============ */
.guarantee{padding:0 0 96px}
.guarantee__inner{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:26px 8px;border-radius:var(--r-card-lg);background:rgba(255,255,255,.05);border:1px solid var(--line);-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);box-shadow:inset 0 1px 0 rgba(255,255,255,.10)}
.guarantee__item{display:flex;align-items:center;gap:14px;padding:6px 22px;border-right:1px solid var(--line)}
.guarantee__item:last-child{border-right:0}
.guarantee__icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--primary-soft);color:var(--primary);font-size:17px;flex:0 0 auto}
.guarantee__label{font-size:15px;font-weight:700}
.guarantee__desc{font-size:12px;color:var(--text-3)}

/* ============ 最新信息 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;background:var(--bg-elev2);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-card),0 0 0 1px var(--primary-soft),0 14px 38px rgba(23,224,196,.16)}
.post-card__link{display:flex;flex-direction:column;height:100%}
.post-card__media{overflow:hidden;background:var(--bg-elev2)}
.post-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s var(--ease)}
.post-card:hover .post-card__media img{transform:scale(1.04)}
.post-card__body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
.post-card__badge{align-self:flex-start}
.post-card__title{font-size:18px;font-weight:700;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__excerpt{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__time{margin-top:auto;padding-top:12px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.empty-state{grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:56px 24px;border:1px dashed var(--line-strong);border-radius:var(--r-card);background:rgba(255,255,255,.02);text-align:center}
.empty-state i{font-size:26px;color:var(--text-3)}
.empty-state p{font-size:15px;color:var(--text-2);margin:0}

/* ============ CTA 大区 ============ */
.cta-section{padding:0 0 96px}
.cta-band{position:relative;overflow:hidden;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;padding:48px;border-radius:var(--r-card-lg);background:var(--bg-elev1);border:1px solid rgba(23,224,196,.32);box-shadow:0 0 0 1px rgba(23,224,196,.10),0 24px 60px rgba(23,224,196,.10)}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(70% 80% at 20% 0%,rgba(23,224,196,.18),transparent 70%);pointer-events:none}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(23px,3vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-bottom:14px}
.cta-band__sub{font-size:15px;color:var(--text-2);margin-bottom:22px}
.check-list{display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text-2)}
.check-list i{color:var(--primary);font-size:13px;margin-top:6px}
.cta-price{padding:28px;border-radius:var(--r-card);background:var(--bg-elev2);border:1px solid var(--line);box-shadow:var(--shadow-card)}
.cta-price__label{font-size:13px;color:var(--text-3)}
.cta-price__now{display:flex;align-items:baseline;gap:10px;margin:8px 0 6px}
.cta-price__now b{font-size:28px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.cta-price__now del{font-size:14px;color:var(--text-3)}
.countdown{display:flex;align-items:center;gap:8px;margin:14px 0 20px;padding:10px 12px;border-radius:var(--r-input);background:rgba(255,107,44,.10);border:1px solid rgba(255,107,44,.25);font-size:13px;color:var(--accent-2);font-variant-numeric:tabular-nums}
.countdown i{color:var(--accent)}
.cta-price__actions{display:flex;flex-direction:column;gap:10px}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.faq-side h2{font-size:clamp(23px,3vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-bottom:16px}
.faq-side p{font-size:15px;color:var(--text-2);margin-bottom:22px}
.faq-side .faq-side__card{padding:20px;border-radius:var(--r-card);background:var(--bg-elev2);border:1px solid var(--line)}
.faq-side .faq-side__card b{display:block;font-size:15px;margin-bottom:6px}
.faq-side .faq-side__card span{font-size:13px;color:var(--text-3);line-height:1.8;display:block}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:12px;background:var(--bg-elev2);overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq-item[open]{border-color:rgba(23,224,196,.42);box-shadow:inset 3px 0 0 0 var(--primary),0 0 18px rgba(23,224,196,.10)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:16px 20px;font-size:15px;font-weight:600;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";width:9px;height:9px;flex:0 0 auto;border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);transform:rotate(45deg);transition:transform .18s var(--ease),border-color .18s var(--ease)}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--primary)}
.faq-item__body{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ============ 表单（通用组件） ============ */
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:600;color:var(--text-2)}
.input,.select{width:100%;height:46px;padding:0 16px;border-radius:var(--r-input);background:var(--bg-elev2);border:1px solid var(--line);color:var(--text-1);font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.input::placeholder{color:var(--text-3)}
.input:focus,.select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,224,196,.18)}
.input.is-error{border-color:var(--err);box-shadow:0 0 0 3px rgba(248,113,113,.14)}
.input.is-ok{border-color:var(--ok)}
.field__hint{font-size:13px;color:var(--text-3)}
.field__error{font-size:13px;color:var(--err)}

/* ============ 页脚 ============ */
.site-footer{margin-top:0;background:var(--bg-elev1);border-top:1px solid var(--line)}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 44px}
.footer__brand .logo{margin-bottom:16px}
.footer__brand p{font-size:14px;color:var(--text-2);line-height:1.8;max-width:300px}
.footer__title{font-size:15px;font-weight:700;margin-bottom:16px}
.footer__links{display:flex;flex-direction:column;gap:11px}
.footer__links a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease)}
.footer__links a:hover{color:var(--primary)}
.footer__contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:var(--text-2)}
.footer__contact li{display:flex;gap:9px;align-items:flex-start}
.footer__contact i{color:var(--primary);font-size:13px;margin-top:6px}
.footer__bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 0 28px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.footer__bottom a{color:var(--text-2)}
.footer__bottom a:hover{color:var(--primary)}

/* ============ 响应式 ============ */
@media(max-width:1279px){
  .hero__grid{gap:32px}
  .card--feature .card__body{padding:24px}
  .card--feature .card__title{font-size:21px}
}
@media(max-width:1023px){
  .hero{padding:48px 0 72px}
  .hero__grid{grid-template-columns:1fr;gap:32px}
  .hero__copy{max-width:none}
  .hero__visual{max-width:640px}
  .section{padding:72px 0}
  .section--tight{padding-top:0}
  .guarantee{padding-bottom:72px}
  .cta-section{padding-bottom:72px}
  .metrics__grid{grid-template-columns:repeat(2,1fr)}
  .metrics__item:nth-child(2){border-right:0}
  .metrics__item:nth-child(1),.metrics__item:nth-child(2){border-bottom:1px solid var(--line)}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .card--feature{grid-column:span 2;grid-template-columns:1fr}
  .card--feature .card__media img{min-height:0;aspect-ratio:16/9;height:auto}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .guarantee__inner{grid-template-columns:repeat(2,1fr);gap:0;padding:12px 8px}
  .guarantee__item{padding:16px 20px;border-right:0}
  .guarantee__item:nth-child(odd){border-right:1px solid var(--line)}
  .guarantee__item:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:36px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px}
}
@media(max-width:899px){
  .nav__links{display:none}
  .nav__cta{display:none}
  .nav__toggle{display:flex}
}
@media(max-width:767px){
  body{font-size:16px}
  .nav{height:60px}
  .logo__text{font-size:17px}
  .logo__tag{display:none}
  .hero{padding:40px 0 56px}
  .hero h1{font-size:30px}
  .hero__sub{font-size:16px}
  .hero__actions .btn{flex:1 1 auto;min-width:140px}
  .hero__stats{left:14px;right:14px;bottom:14px;padding:12px;gap:8px}
  .hero__stat b{font-size:19px}
  .hero__stat span{font-size:11px}
  .section{padding:56px 0}
  .section--tight{padding-top:0}
  .guarantee{padding-bottom:56px}
  .cta-section{padding-bottom:56px}
  .post-grid{grid-template-columns:1fr}
  .product-grid{grid-template-columns:1fr}
  .card--feature{grid-column:span 1}
  .section__head{margin-bottom:28px}
  .metrics__num{font-size:24px}
  .cta-band{padding:28px 20px}
  .cta-price{padding:20px}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media(max-width:559px){
  .container{padding:0 20px}
  .hero h1{font-size:30px}
  .review-card{flex:0 0 280px}
  .guarantee__inner{grid-template-columns:1fr}
  .guarantee__item{border-right:0 !important;border-bottom:1px solid var(--line)}
  .guarantee__item:last-child{border-bottom:0}
  .metrics__grid{grid-template-columns:1fr}
  .metrics__item{border-right:0 !important;border-bottom:1px solid var(--line)}
  .metrics__item:last-child{border-bottom:0}
  .btn{font-size:14px}
  .card__price{font-size:18px}
}

/* roulang page: article */
:root{
  --bg-base:#070C16;
  --bg-elev1:#0E1626;
  --bg-elev2:#131E33;
  --bg-elev3:#1A2740;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --primary:#17E0C4;
  --primary-soft:rgba(23,224,196,.14);
  --accent:#FF6B2C;
  --accent-2:#FFD166;
  --text-1:#EAF2FF;
  --text-2:#A9B6CC;
  --text-3:#6B7A93;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#F87171;
  --glow-primary:0 6px 26px rgba(23,224,196,.34);
  --glow-accent:0 6px 26px rgba(255,107,44,.30);
  --r-card:16px;
  --r-card-lg:20px;
  --r-btn:11px;
  --r-input:10px;
  --r-pill:999px;
  --shadow-card:0 10px 30px rgba(0,0,0,.38);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
::selection{background:rgba(23,224,196,.28);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,12,22,.86);
  border-bottom-color:var(--line);
  backdrop-filter:blur(12px) saturate(120%);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:var(--text-1);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.logo__mark{
  width:34px;height:34px;
  border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,#3BF0D6,#0FA894);
  color:#04231E;
  font-size:13px;
  font-weight:900;
  letter-spacing:.02em;
  box-shadow:var(--glow-primary);
}
.logo__badge{
  font-size:11px;
  font-weight:600;
  line-height:1.6;
  padding:1px 7px;
  border-radius:var(--r-pill);
  border:1px solid rgba(23,224,196,.45);
  color:var(--primary);
  background:var(--primary-soft);
}
.nav__links{display:flex;align-items:center;gap:2px}
.nav__links a{
  position:relative;
  padding:9px 14px;
  border-radius:10px;
  font-size:15px;
  color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav__links a:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav__links a.is-active{color:var(--text-1)}
.nav__links a.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:3px;
  height:2px;border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(23,224,196,.85);
}
.nav__right{display:flex;align-items:center;gap:14px}
.burger{
  display:none;
  width:44px;height:44px;
  border-radius:11px;
  border:1px solid var(--line-strong);
  color:var(--text-1);
  align-items:center;
  justify-content:center;
  font-size:17px;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.burger:hover{background:rgba(255,255,255,.06);border-color:var(--line-strong)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn--lg{height:48px;padding:0 28px}
.btn--sm{height:32px;padding:0 14px;font-size:13px}
.btn--primary{background:var(--primary);color:#04231E;box-shadow:var(--glow-primary)}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 34px rgba(23,224,196,.46)}
.btn--primary:active{transform:translateY(1px);box-shadow:0 3px 14px rgba(23,224,196,.3)}
.btn--accent{background:var(--accent);color:#1A0A03;box-shadow:var(--glow-accent)}
.btn--accent:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 34px rgba(255,107,44,.42)}
.btn--accent:active{transform:translateY(1px);box-shadow:0 3px 14px rgba(255,107,44,.3)}
.btn--ghost{
  background:transparent;
  border:1px solid var(--line-strong);
  color:var(--text-1);
}
.btn--ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.34)}
.btn:focus-visible{outline:2px solid rgba(23,224,196,.55);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;pointer-events:none}

/* ---------- 抽屉导航 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:200;
  background:rgba(7,12,22,.72);
  backdrop-filter:blur(6px);
  opacity:0;
  visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer__panel{
  background:var(--bg-elev1);
  border-bottom:1px solid var(--line);
  padding:18px 20px 28px;
  transform:translateY(-16px);
  transition:transform .22s var(--ease);
  max-height:100%;
  overflow-y:auto;
}
.drawer.is-open .drawer__panel{transform:translateY(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer__close{
  width:44px;height:44px;border-radius:11px;
  border:1px solid var(--line-strong);
  display:grid;place-items:center;color:var(--text-1);
}
.drawer__links{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer__links a{
  height:56px;
  display:flex;
  align-items:center;
  font-size:18px;
  color:var(--text-1);
  border-bottom:1px solid var(--line);
}
.drawer__links a.is-active{color:var(--primary)}
.drawer__cta{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.drawer__cta .btn{width:100%}
.drawer__foot{margin-top:24px;color:var(--text-3);font-size:13px;line-height:1.9}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:40px 0 56px;
  background:
    radial-gradient(60% 55% at 50% 0%, rgba(23,224,196,.16), transparent 70%),
    var(--bg-base);
  overflow:hidden;
}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 60% at 50% 0%,#000,transparent 78%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:1}
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:12px;
}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--primary)}
.crumb__sep{color:var(--text-3);opacity:.6}
.crumb__current{color:var(--text-2)}
.article-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--primary-soft);
  border:1px solid rgba(23,224,196,.36);
  color:var(--primary);
  font-size:12.5px;
  font-weight:600;
  margin-bottom:16px;
}
.article-title{
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.015em;
  max-width:900px;
  color:var(--text-1);
}
.article-title.is-long{font-size:clamp(24px,3vw,34px)}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
  font-size:13px;
  color:var(--text-3);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--text-3)}

/* ---------- 封面 ---------- */
.article-cover{
  margin:0 auto 48px;
  max-width:1052px;
  border-radius:var(--r-card-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-elev2);
  box-shadow:var(--shadow-card);
}
.article-cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 236px;
  gap:56px;
  max-width:1052px;
  margin:0 auto;
  align-items:start;
}
.article-main{max-width:760px;min-width:0}

.article-body{font-size:17px;line-height:1.9;color:var(--text-2)}
.article-body > * + *{margin-top:1.2em}
.article-body h2{
  position:relative;
  margin-top:48px;
  padding-left:15px;
  font-size:26px;
  line-height:1.35;
  font-weight:700;
  color:var(--text-1);
  scroll-margin-top:100px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.28em;bottom:.28em;
  width:4px;border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(23,224,196,.6);
}
.article-body h3{
  margin-top:34px;
  font-size:20px;
  line-height:1.4;
  font-weight:700;
  color:var(--text-1);
  scroll-margin-top:100px;
}
.article-body h4{
  margin-top:26px;
  font-size:17px;
  font-weight:700;
  color:var(--text-1);
  scroll-margin-top:100px;
}
.article-body p{color:var(--text-2)}
.article-body strong{color:var(--text-1);font-weight:700}
.article-body em{color:var(--text-1);font-style:normal;border-bottom:1px dashed rgba(23,224,196,.5)}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#5CF2DD}
.article-body ul,.article-body ol{padding-left:2px}
.article-body li{position:relative;padding-left:22px;margin-top:10px;color:var(--text-2)}
.article-body ul > li::before{
  content:"";
  position:absolute;
  left:4px;top:.78em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px rgba(23,224,196,.6);
}
.article-body ol{counter-reset:li}
.article-body ol > li::before{
  counter-increment:li;
  content:counter(li);
  position:absolute;
  left:0;top:.32em;
  width:20px;height:20px;
  border-radius:6px;
  display:grid;place-items:center;
  font-size:12px;
  font-weight:700;
  line-height:1;
  color:var(--primary);
  background:var(--primary-soft);
}
.article-body blockquote{
  margin:28px 0;
  padding:18px 22px;
  border-left:3px solid var(--primary);
  border-radius:0 12px 12px 0;
  background:rgba(255,255,255,.03);
  color:var(--text-2);
  font-size:16px;
}
.article-body blockquote p{color:var(--text-2);margin:0}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:28px 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
}
.article-body th{
  background:var(--bg-elev2);
  color:var(--text-1);
  font-weight:600;
  text-align:left;
  padding:12px 16px;
}
.article-body td{
  padding:12px 16px;
  border-top:1px solid var(--line);
  color:var(--text-2);
}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.016)}
.article-body img{
  border-radius:12px;
  margin:28px auto;
  height:auto;
  background:var(--bg-elev2);
}
.article-body figure{margin:28px 0}
.article-body figcaption{
  margin-top:10px;
  text-align:center;
  font-size:13px;
  color:var(--text-3);
}
.article-body pre{
  background:#050A12;
  border:1px solid var(--line);
  border-radius:12px;
  padding:18px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;
}
.article-body p code,.article-body li code{
  background:var(--bg-elev2);
  color:var(--primary);
  padding:2px 6px;
  border-radius:6px;
}
.article-body hr{
  border:0;
  height:1px;
  background:var(--line);
  margin:40px 0;
}

/* ---------- 目录浮层 ---------- */
.article-aside{position:relative}
.toc{
  position:sticky;
  top:96px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px 16px;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 1px 0 rgba(255,255,255,.10) inset;
}
.toc__title{
  font-size:13px;
  font-weight:700;
  color:var(--text-1);
  letter-spacing:.04em;
  margin-bottom:12px;
  display:flex;
  align-items:center;
  gap:8px;
}
.toc__title::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(23,224,196,.8);
}
.toc__list{display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow-y:auto}
.toc__link{
  display:block;
  padding:7px 10px;
  border-radius:8px;
  font-size:13.5px;
  line-height:1.5;
  color:var(--text-3);
  border-left:2px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.toc__link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.toc__link.is-sub{padding-left:22px;font-size:13px}
.toc__link.is-active{
  color:var(--primary);
  border-left-color:var(--primary);
  background:var(--primary-soft);
}

/* ---------- 空态 ---------- */
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
  padding:64px 24px;
  border:1px dashed var(--line-strong);
  border-radius:var(--r-card);
  background:var(--bg-elev2);
  text-align:center;
}
.empty-state i{font-size:30px;color:var(--text-3)}
.empty-state p{font-size:16px;color:var(--text-2)}

/* ---------- 通用板块标题 ---------- */
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:36px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:700;
  line-height:1.25;
  color:var(--text-1);
}
.section-head p{
  margin-top:8px;
  font-size:14px;
  color:var(--text-3);
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
}
.link-more:hover{color:var(--primary)}
.link-more i{font-size:12px}

/* ---------- 相关阅读 ---------- */
.related{padding:16px 0 0}
.related__grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--bg-elev2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:0 12px 34px rgba(0,0,0,.45),0 0 0 1px var(--primary-soft),0 0 26px rgba(23,224,196,.14);
}
.post-card__media{
  overflow:hidden;
  background:var(--bg-elev3);
  aspect-ratio:16/10;
}
.post-card__media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s var(--ease);
}
.post-card:hover .post-card__media img{transform:scale(1.04)}
.post-card__body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card__body h3{
  font-size:17px;
  line-height:1.45;
  font-weight:700;
  color:var(--text-1);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card__time{font-size:13px;color:var(--text-3);margin-top:auto}

/* ---------- 翻页 ---------- */
.post-nav{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
  margin-top:56px;
}
.post-nav__item{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:20px 22px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--bg-elev2);
  transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.post-nav__item:hover{border-color:var(--line-strong);background:var(--bg-elev3);transform:translateY(-3px)}
.post-nav__item.is-next{text-align:right;align-items:flex-end}
.post-nav__label{font-size:13px;color:var(--text-3);display:inline-flex;align-items:center;gap:8px}
.post-nav__title{font-size:15.5px;font-weight:600;color:var(--text-1);line-height:1.5}

/* ---------- 底部 CTA ---------- */
.cta-band{
  margin-top:88px;
  padding:0;
}
.cta-band__inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:40px 44px;
  border-radius:var(--r-card-lg);
  border:1px solid rgba(23,224,196,.42);
  background:
    radial-gradient(60% 120% at 12% 0%, rgba(23,224,196,.20), transparent 62%),
    linear-gradient(150deg,var(--bg-elev2),var(--bg-elev1));
  box-shadow:0 18px 44px rgba(0,0,0,.42);
  overflow:hidden;
}
.cta-band__inner::after{
  content:"";
  position:absolute;
  right:-60px;top:-70px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,44,.22),transparent 68%);
  pointer-events:none;
}
.cta-band__text{position:relative;z-index:1;max-width:620px}
.cta-band__text h2{
  font-size:clamp(21px,2.4vw,28px);
  font-weight:700;
  line-height:1.3;
  color:var(--text-1);
}
.cta-band__text p{
  margin-top:12px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.8;
}
.cta-band__actions{
  position:relative;z-index:1;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background:var(--bg-elev1);
  border-top:1px solid var(--line);
  padding-top:64px;
}
.footer__grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
}
.footer__brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:var(--text-3);
  max-width:330px;
}
.footer__title{
  font-size:15px;
  font-weight:700;
  color:var(--text-1);
  margin-bottom:16px;
}
.footer__links{display:flex;flex-direction:column;gap:10px}
.footer__links a{font-size:14px;color:var(--text-2)}
.footer__links a:hover{color:var(--primary)}
.footer__contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--text-2)}
.footer__contact li{display:flex;gap:10px;align-items:flex-start;line-height:1.7}
.footer__contact i{color:var(--primary);width:16px;margin-top:4px;flex:none}
.footer__bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:56px;
  padding:24px 0;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer__bottom a{color:var(--text-2)}
.footer__bottom a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr);max-width:780px}
  .article-aside{display:none}
}
@media (max-width:1023px){
  .nav__links{display:none}
  .nav__right .btn{display:none}
  .burger{display:inline-flex}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .related__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band__inner{flex-direction:column;align-items:flex-start;padding:34px 28px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .nav{height:60px}
  .logo{font-size:16px}
  .logo__mark{width:30px;height:30px;font-size:12px}
  .article-hero{padding:28px 0 40px}
  .article-cover{margin-bottom:36px;border-radius:var(--r-card)}
  .article-body{font-size:17px}
  .article-body h2{font-size:22px;margin-top:38px}
  .article-body h3{font-size:18px}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .post-nav__item.is-next{text-align:left;align-items:flex-start}
  .cta-band{margin-top:64px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1;min-width:140px}
  .site-footer{margin-top:64px;padding-top:48px}
}
@media (max-width:599px){
  .related__grid{grid-template-columns:minmax(0,1fr)}
  .footer__grid{grid-template-columns:minmax(0,1fr)}
  .footer__bottom{flex-direction:column;align-items:flex-start}
  .article-title{font-size:24px}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --bg-base:#070C16;
  --bg-elev1:#0E1626;
  --bg-elev2:#131E33;
  --bg-elev3:#1A2740;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --primary:#17E0C4;
  --primary-soft:rgba(23,224,196,.14);
  --accent:#FF6B2C;
  --accent-2:#FFD166;
  --text-1:#EAF2FF;
  --text-2:#A9B6CC;
  --text-3:#6B7A93;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#F87171;
  --glow-primary:0 6px 26px rgba(23,224,196,.34);
  --glow-accent:0 6px 26px rgba(255,107,44,.30);
  --r-card:16px;
  --r-card-lg:20px;
  --r-btn:11px;
  --r-input:10px;
  --r-pill:999px;
  --shadow-card:0 10px 30px rgba(0,0,0,.38);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;background:var(--bg-elev2)}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--primary)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{
  outline:2px solid rgba(23,224,196,.55);outline-offset:2px;border-radius:6px;
}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(30px,4.6vw,54px);line-height:1.15;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(23px,3vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
h3{font-size:20px;line-height:1.35;font-weight:700}
p{max-width:760px}
::selection{background:rgba(23,224,196,.28);color:#04231E}
:focus:not(:focus-visible){outline:none}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ============ 通用文本 ============ */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1.6;color:var(--primary);
  letter-spacing:.08em;text-transform:uppercase;font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7}
.lead{color:var(--text-2);font-size:16px;max-width:720px}
.muted{color:var(--text-3);font-size:13px;line-height:1.6}
.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:40px;padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn--lg{height:48px;padding:0 28px;font-size:16px}
.btn--sm{height:32px;padding:0 14px;font-size:13px}
.btn--primary{background:var(--primary);color:#04231E;box-shadow:var(--glow-primary)}
.btn--primary:hover{color:#04231E;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 34px rgba(23,224,196,.42)}
.btn--primary:active{transform:translateY(1px);box-shadow:0 4px 16px rgba(23,224,196,.28)}
.btn--accent{background:var(--accent);color:#2A0C00;box-shadow:var(--glow-accent)}
.btn--accent:hover{color:#2A0C00;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 34px rgba(255,107,44,.40)}
.btn--accent:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(255,107,44,.26)}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--text-1)}
.btn--ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.32);color:var(--text-1);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(1px)}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;filter:none}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 11px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1;
  background:var(--primary-soft);color:var(--primary);
  border:1px solid rgba(23,224,196,.28);
  white-space:nowrap;
}
.badge--outline{background:transparent;border-color:var(--line-strong);color:var(--text-2)}
.badge--accent{background:rgba(255,107,44,.14);border-color:rgba(255,107,44,.32);color:var(--accent)}
.badge--amber{background:rgba(255,209,102,.14);border-color:rgba(255,209,102,.30);color:var(--accent-2)}

/* ============ 公告条 ============ */
.topbar{
  background:linear-gradient(90deg,rgba(23,224,196,.10),rgba(7,12,22,.2) 60%);
  border-bottom:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.topbar__inner{display:flex;align-items:center;gap:10px;height:36px;overflow:hidden}
.topbar__dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(23,224,196,.9);flex:none}
.topbar strong{color:var(--text-1);font-weight:600}
.topbar__spacer{flex:1}
.topbar a{color:var(--primary)}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease),backdrop-filter .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,12,22,.86);
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  border-bottom-color:var(--line);
}
.header__inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.01em}
.logo__mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#0AA48F);
  color:#04231E;font-size:13px;font-weight:800;letter-spacing:.02em;
  box-shadow:var(--glow-primary);
}
.logo__text{font-size:18px;color:var(--text-1)}
.logo__badge{
  font-size:11px;font-weight:600;line-height:1;
  padding:4px 7px;border-radius:6px;
  background:rgba(23,224,196,.14);color:var(--primary);
  border:1px solid rgba(23,224,196,.28);
}
.logo:hover .logo__text{color:var(--primary)}

.nav__links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav__links a{
  position:relative;
  display:inline-flex;align-items:center;
  height:36px;padding:0 14px;border-radius:9px;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav__links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.nav__links a:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav__links a.is-active{color:var(--text-1)}
.nav__links a.is-active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(23,224,196,.8)}
.header__actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line-strong);
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .24s var(--ease),opacity .24s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动端抽屉 */
.nav-drawer{
  position:fixed;inset:72px 0 0 0;z-index:55;
  background:var(--bg-elev1);
  border-top:1px solid var(--line);
  padding:20px 24px 32px;
  overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.nav-drawer a.drawer__link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;font-size:18px;color:var(--text-1);
  border-bottom:1px solid var(--line);
}
.nav-drawer a.drawer__link.is-active{color:var(--primary)}
.nav-drawer .drawer__cta{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.nav-drawer .drawer__cta .btn{width:100%}
.drawer__contact{margin-top:22px;color:var(--text-3);font-size:13px;display:grid;gap:8px}

/* ============ 首屏 ============ */
.category-hero{
  position:relative;overflow:hidden;
  padding:56px 0 84px;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(60% 55% at 50% 0%, rgba(23,224,196,.16), transparent 70%),
    var(--bg-base);
}
.category-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 1px,transparent 1px 22px);
  opacity:.5;
}
.category-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 60% at 30% 10%,#000,transparent 75%);
  -webkit-mask-image:radial-gradient(70% 60% at 30% 10%,#000,transparent 75%);
}
.hero__grid{position:relative;z-index:1;display:grid;grid-template-columns:6fr 6fr;gap:40px;align-items:center}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:12px;flex-wrap:wrap}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--primary)}
.crumb span.sep{color:rgba(255,255,255,.22)}
.crumb .current{color:var(--text-2)}
.hero__tags{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 22px}
.hero__copy p{color:var(--text-2);margin-top:18px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero__trust{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px}
.hero__trust li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2)}
.hero__trust i{color:var(--primary)}
.hero__visual{position:relative}
.hero__visual .frame{
  position:relative;border-radius:var(--r-card-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  background:var(--bg-elev2);
}
.hero__visual .frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.hero__visual .frame::after{
  content:"";position:absolute;inset:auto 0 0 0;height:52%;
  background:linear-gradient(180deg,transparent,var(--bg-base));
  pointer-events:none;
}
.glass-panel{
  position:absolute;left:18px;right:18px;bottom:18px;z-index:2;
  border-radius:var(--r-card);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10);
  padding:16px 18px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;
}
.glass-panel .item .v{font-size:24px;font-weight:800;color:var(--accent-2);font-variant-numeric:tabular-nums;line-height:1.1}
.glass-panel .item .k{font-size:12px;color:var(--text-2);margin-top:4px}

/* ============ 场景快选条带 ============ */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-elev1)}
.strip__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.strip__item{padding:26px 24px;border-right:1px solid var(--line)}
.strip__item:last-child{border-right:0}
.strip__item i{color:var(--primary);font-size:18px}
.strip__item h3{font-size:16px;margin:12px 0 6px}
.strip__item p{font-size:13px;color:var(--text-3);line-height:1.7;max-width:none}

/* ============ 板块通用 ============ */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section__head p{margin-top:12px;color:var(--text-2);font-size:15px}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary)}
.link-more:hover{gap:12px}
.link-more:hover i{transform:translateX(2px)}
.link-more i{transition:transform .2s var(--ease)}

/* ============ 筛选条 ============ */
.filter-bar{
  background:var(--bg-elev1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px 20px;
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  box-shadow:var(--shadow-card);
}
.filter-pills{display:flex;gap:8px;flex-wrap:wrap}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  height:34px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;color:var(--text-2);
  background:var(--bg-elev2);border:1px solid var(--line);
  transition:all .2s var(--ease);
  cursor:pointer;
}
.pill:hover{color:var(--text-1);border-color:var(--line-strong);transform:translateY(-1px)}
.pill.is-on{background:var(--primary-soft);border-color:rgba(23,224,196,.4);color:var(--primary)}
.filter-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.filter-count{font-size:13px;color:var(--text-3)}
.filter-count b{color:var(--text-1);font-variant-numeric:tabular-nums}
.select{
  height:38px;padding:0 34px 0 14px;border-radius:var(--r-input);
  background:var(--bg-elev2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A9B6CC' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 13px center;
  border:1px solid var(--line);color:var(--text-2);font-size:13px;
  appearance:none;-webkit-appearance:none;cursor:pointer;
}
.select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,224,196,.18);outline:none}
.filter-toggle{display:none}

/* ============ 商品网格 ============ */
.gear-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px}
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--bg-elev2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-card),0 0 0 1px rgba(23,224,196,.20),0 14px 36px rgba(23,224,196,.12);
  background:var(--bg-elev3);
}
.card__media{position:relative;overflow:hidden;background:var(--bg-elev2);aspect-ratio:16/10}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card__media img{transform:scale(1.04)}
.card__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,0) 55%,rgba(7,12,22,.55));
  pointer-events:none;
}
.card__badges{position:absolute;top:12px;left:12px;z-index:2;display:flex;gap:8px;flex-wrap:wrap}
.card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__title{font-size:18px;font-weight:700;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__desc{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;max-width:none}
.card__meta{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.price{font-size:20px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums}
.price del{font-size:13px;font-weight:500;color:var(--text-3);margin-left:8px}
.rating{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-3)}
.rating i{color:var(--accent-2);font-size:12px}
.card__actions{display:flex;gap:10px;margin-top:auto;padding-top:14px}
.card__actions .btn{flex:1}
.card--wide{grid-column:1/-1;flex-direction:row;align-items:stretch}
.card--wide .card__media{width:46%;aspect-ratio:auto;min-height:280px;flex:none}
.card--wide .card__body{padding:26px 28px;justify-content:center}
.card--wide .card__title{font-size:22px;-webkit-line-clamp:1}
.card--wide .feature-list{margin:6px 0 4px;display:grid;gap:8px}
.card--wide .feature-list li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-2)}
.card--wide .feature-list i{color:var(--primary);font-size:12px}

/* ============ 对比表 ============ */
.compare{
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;background:var(--bg-elev1);box-shadow:var(--shadow-card);
}
.compare table{width:100%;border-collapse:collapse;min-width:560px}
.compare th,.compare td{
  padding:16px 20px;text-align:left;font-size:14px;
  border-bottom:1px solid var(--line);
}
.compare thead th{
  background:var(--bg-elev2);font-size:13px;color:var(--text-2);
  font-weight:600;letter-spacing:.04em;white-space:nowrap;
}
.compare thead th:first-child{color:var(--text-3)}
.compare tbody tr:nth-child(even){background:rgba(255,255,255,.015)}
.compare tbody tr:hover{background:rgba(23,224,196,.05)}
.compare tbody tr:last-child td{border-bottom:0}
.compare td:first-child{color:var(--text-3);font-size:13px;white-space:nowrap}
.compare .col-a{color:var(--primary);font-weight:600}
.compare .col-b{color:var(--accent-2);font-weight:600}
.compare__wrap{overflow-x:auto}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.flow__item{position:relative;padding-top:26px;border-top:1px solid var(--line)}
.flow__item::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;top:-15px;left:0;
  font-size:13px;font-weight:700;color:var(--primary);
  background:var(--bg-base);padding-right:10px;
  font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.flow__item h3{font-size:17px;margin-bottom:8px}
.flow__item p{font-size:14px;color:var(--text-2);max-width:none}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.faq-list{display:grid;gap:12px}
.faq-item{
  border:1px solid var(--line);border-radius:12px;
  background:var(--bg-elev2);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item[open]{border-color:rgba(23,224,196,.30);background:var(--bg-elev3)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;
  font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .arrow{
  flex:none;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--text-2);font-size:11px;
  transition:transform .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.faq-item[open] summary .arrow{transform:rotate(180deg);color:var(--primary);border-color:rgba(23,224,196,.4)}
.faq-item .faq-body{
  padding:0 20px 20px 23px;
  font-size:15px;line-height:1.8;color:var(--text-2);
  border-left:3px solid var(--primary);
  margin-left:20px;padding-left:18px;
  max-width:none;
  box-shadow:-3px 0 14px rgba(23,224,196,.22);
}

/* ============ CTA 大区 ============ */
.cta-band{padding:0 0 96px}
.cta-box{
  position:relative;overflow:hidden;
  border-radius:var(--r-card-lg);
  border:1px solid rgba(23,224,196,.32);
  background:
    radial-gradient(60% 90% at 12% 0%, rgba(23,224,196,.16), transparent 70%),
    linear-gradient(120deg,var(--bg-elev2),var(--bg-elev1));
  box-shadow:0 0 0 1px rgba(23,224,196,.10),var(--shadow-card);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-box::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,44,.20),transparent 68%);
  pointer-events:none;
}
.cta-box__copy{position:relative;z-index:1}
.cta-box__copy p{color:var(--text-2);margin-top:12px;font-size:15px}
.cta-box__list{display:flex;gap:22px;flex-wrap:wrap;margin-top:20px}
.cta-box__list li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.cta-box__list i{color:var(--ok)}
.cta-box__actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-elev1);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer__grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:32px}
.footer__brand p{font-size:14px;color:var(--text-3);margin-top:16px;max-width:280px;line-height:1.8}
.footer__title{font-size:15px;font-weight:700;color:var(--text-1);margin-bottom:18px}
.footer__links{display:grid;gap:12px}
.footer__links a{font-size:14px;color:var(--text-2)}
.footer__links a:hover{color:var(--primary)}
.footer__contact{display:grid;gap:12px;font-size:14px;color:var(--text-2)}
.footer__contact li{display:flex;gap:10px;align-items:flex-start}
.footer__contact i{color:var(--primary);margin-top:4px;font-size:13px}
.footer__bottom{
  margin-top:56px;padding:22px 0;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer__bottom a{color:var(--text-2)}
.footer__bottom a:hover{color:var(--primary)}

/* ============ 图片加载占位 ============ */
img{background-image:linear-gradient(100deg,var(--bg-elev2) 30%,rgba(255,255,255,.05) 50%,var(--bg-elev2) 70%);background-size:200% 100%}
img.is-loaded{background-image:none;animation:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero__grid{gap:32px}
  .card--wide .card__media{width:44%}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .nav__links{display:none}
  .nav-toggle{display:flex}
  .section{padding:72px 0}
  .category-hero{padding:40px 0 64px}
  .hero__grid{grid-template-columns:1fr;gap:32px}
  .hero__visual{order:2}
  .hero__copy{order:1}
  h1{font-size:32px}
  .strip__grid{grid-template-columns:repeat(2,1fr)}
  .strip__item{border-bottom:1px solid var(--line)}
  .strip__item:nth-child(2n){border-right:0}
  .strip__item:nth-child(3),.strip__item:nth-child(4){border-bottom:0}
  .gear-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .card--wide{flex-direction:column;grid-column:1/-1}
  .card--wide .card__media{width:100%;min-height:0;aspect-ratio:16/10}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .footer__grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .cta-box{padding:36px 28px}
}
@media (max-width:767px){
  .topbar__inner{font-size:12px}
  .topbar .topbar__hide{display:none}
  .header__inner{height:60px}
  .nav-drawer{inset:60px 0 0 0}
  .logo__text{font-size:16px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .section__head{margin-bottom:28px}
  .hero__grid{gap:26px}
  h1{font-size:30px}
  h2{font-size:24px}
  .hero__actions .btn{flex:1;min-width:140px}
  .gear-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr;gap:24px}
  .footer__grid{grid-template-columns:1fr}
  .cta-band{padding:0 0 64px}
  .cta-box{padding:28px 22px;border-radius:var(--r-card)}
  .cta-box__actions{width:100%}
  .cta-box__actions .btn{flex:1;min-width:140px}
  .filter-bar{padding:14px}
  .filter-right{width:100%;margin-left:0;justify-content:space-between}
  .filter-toggle{display:inline-flex}
  .filter-pills{display:none}
  .filter-pills.is-open{
    display:flex;width:100%;
    padding-top:6px;border-top:1px dashed var(--line);margin-top:4px;
  }
  .glass-panel{grid-template-columns:repeat(3,1fr);gap:8px;padding:12px;left:12px;right:12px;bottom:12px}
  .glass-panel .item .v{font-size:18px}
  .glass-panel .item .k{font-size:11px}
  .compare th,.compare td{padding:14px 16px}
}
@media (max-width:559px){
  .container{padding:0 16px}
  .strip__grid{grid-template-columns:1fr}
  .strip__item{border-right:0;border-bottom:1px solid var(--line)}
  .strip__item:last-child{border-bottom:0}
  .hero__trust{gap:14px}
  .card--wide .card__body{padding:20px}
  .logo__badge{display:none}
}

/* roulang page: category2 */
:root{
  --bg-base:#070C16;
  --bg-elev1:#0E1626;
  --bg-elev2:#131E33;
  --bg-elev3:#1A2740;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --primary:#17E0C4;
  --primary-soft:rgba(23,224,196,.14);
  --accent:#FF6B2C;
  --accent-2:#FFD166;
  --text-1:#EAF2FF;
  --text-2:#A9B6CC;
  --text-3:#6B7A93;
  --ok:#34D399;
  --warn:#FBBF24;
  --err:#F87171;
  --glow-primary:0 6px 26px rgba(23,224,196,.34);
  --glow-accent:0 6px 26px rgba(255,107,44,.30);
  --r-card:16px;
  --r-card-lg:20px;
  --r-btn:11px;
  --r-input:10px;
  --r-pill:999px;
  --shadow-card:0 10px 30px rgba(0,0,0,.38);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","HarmonyOS Sans",system-ui,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s}
a:hover{color:var(--primary)}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{letter-spacing:-.01em}
:focus-visible{outline:2px solid rgba(23,224,196,.55);outline-offset:2px}
::selection{background:rgba(23,224,196,.3)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section__title{font-size:clamp(23px,3vw,36px);line-height:1.25;font-weight:700}
.section__desc{color:var(--text-2);font-size:15px;max-width:660px;margin-top:12px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--primary);text-transform:uppercase;font-weight:600;margin-bottom:14px}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(23,224,196,.7)}
.text-link{color:var(--primary);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.text-link i{transition:transform .2s var(--ease)}
.text-link:hover i{transform:translateX(4px)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;transition:transform .2s var(--ease),box-shadow .2s,background .2s,border-color .2s,filter .2s}
.btn--primary{background:var(--primary);color:#04231E;box-shadow:var(--glow-primary)}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 34px rgba(23,224,196,.46);color:#04231E}
.btn--primary:active{transform:translateY(1px);box-shadow:0 4px 16px rgba(23,224,196,.30)}
.btn--accent{background:var(--accent);color:#2A0F02;box-shadow:var(--glow-accent)}
.btn--accent:hover{filter:brightness(1.06);transform:translateY(-2px);color:#2A0F02}
.btn--accent:active{transform:translateY(1px);box-shadow:0 4px 16px rgba(255,107,44,.28)}
.btn--ghost{background:transparent;border:1px solid var(--line-strong);color:var(--text-1)}
.btn--ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.32);transform:translateY(-2px);color:var(--text-1)}
.btn--ghost:active{transform:translateY(1px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--xs{height:32px;padding:0 14px;font-size:13px;border-radius:9px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;gap:5px;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:var(--primary-soft);color:var(--primary);border:1px solid rgba(23,224,196,.28)}
.badge--line{background:transparent;color:var(--text-2);border-color:var(--line-strong)}
.badge--accent{background:rgba(255,107,44,.14);color:#FFB08A;border-color:rgba(255,107,44,.3)}
.pill{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--bg-elev2);color:var(--text-2);font-size:14px;transition:all .2s var(--ease);white-space:nowrap}
.pill:hover{border-color:var(--line-strong);color:var(--text-1);transform:translateY(-2px)}
.pill.is-on{background:var(--primary-soft);border-color:rgba(23,224,196,.45);color:var(--primary)}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:80;background:transparent;border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s,backdrop-filter .28s}
.site-header.is-scrolled{background:rgba(7,12,22,.86);backdrop-filter:blur(12px) saturate(120%);border-bottom-color:var(--line)}
.header__inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--text-1);flex:0 0 auto}
.logo__mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-size:13px;font-weight:800;color:#04231E;
  background:linear-gradient(140deg,var(--primary),#0FB39E);box-shadow:var(--glow-primary)}
.logo__text{white-space:nowrap}
.nav__links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav__links a{position:relative;padding:8px 12px;border-radius:8px;color:var(--text-2);font-size:15px;transition:color .18s,background .18s}
.nav__links a:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav__links a.is-active{color:var(--text-1)}
.nav__links a.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(23,224,196,.75)}
.header__cta{flex:0 0 auto;margin-left:8px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line-strong);align-items:center;justify-content:center;
  color:var(--text-1);font-size:17px;transition:background .2s,border-color .2s}
.nav-toggle:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.3)}

/* 移动抽屉 */
.nav-drawer{position:fixed;inset:0;z-index:90;background:var(--bg-elev1);display:flex;flex-direction:column;padding:80px 24px 32px;
  opacity:0;visibility:hidden;transform:translateY(-14px);transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
  overflow-y:auto}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.nav-drawer__close{position:absolute;top:16px;right:20px;width:44px;height:44px;border-radius:10px;border:1px solid var(--line-strong);
  display:grid;place-items:center;font-size:18px}
.nav-drawer__links{display:flex;flex-direction:column}
.nav-drawer__links a{font-size:18px;line-height:56px;border-bottom:1px solid var(--line);color:var(--text-2)}
.nav-drawer__links a.is-active{color:var(--primary)}
.nav-drawer__links a:hover{color:var(--text-1)}
.nav-drawer__foot{margin-top:32px;display:flex;flex-direction:column;gap:14px}
.nav-drawer__foot p{color:var(--text-3);font-size:13px;line-height:1.9}

/* 面包屑 */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding:22px 0 12px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--text-2)}

/* Hero */
.hero{position:relative;padding:16px 0 88px;overflow:hidden}
.hero::before{content:"";position:absolute;top:-40%;left:0;right:0;height:120%;
  background:radial-gradient(60% 55% at 50% 0%,rgba(23,224,196,.16),transparent 70%);pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(70% 60% at 50% 20%,#000,transparent 80%)}
.hero__grid{position:relative;z-index:2;display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center}
.hero__title{font-size:clamp(30px,4vw,46px);line-height:1.15;font-weight:800}
.hero__title em{font-style:normal;color:var(--primary)}
.hero__sub{margin-top:18px;font-size:17px;color:var(--text-2);max-width:620px}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.hero__tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero__tags li{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-2);
  padding:7px 13px;border:1px solid var(--line);border-radius:var(--r-pill);background:rgba(255,255,255,.03)}
.hero__tags i{color:var(--primary);font-size:12px}
.hero__media{position:relative;border-radius:var(--r-card-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.hero__media img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.hero__media::after{content:"";position:absolute;inset:auto 0 0 0;height:46%;
  background:linear-gradient(to top,var(--bg-base),rgba(7,12,22,.35) 55%,transparent)}
.glass{background:rgba(255,255,255,.05);border:1px solid var(--line);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10);border-radius:var(--r-card)}
.hero__glass{position:absolute;left:18px;right:18px;bottom:18px;z-index:3;display:grid;grid-template-columns:repeat(3,1fr);
  padding:16px 10px}
.glass__item{text-align:center;padding:0 6px;border-right:1px solid var(--line)}
.glass__item:last-child{border-right:0}
.glass__num{display:block;font-size:24px;font-weight:800;color:var(--accent-2);font-variant-numeric:tabular-nums;line-height:1.2}
.glass__label{display:block;font-size:12px;color:var(--text-2);margin-top:4px}

/* 指标条 */
.metrics{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-elev1)}
.metrics__grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:30px 24px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric__num{font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--primary);line-height:1.2}
.metric__label{font-size:13px;color:var(--text-3);margin-top:6px}

/* 筛选条 */
.filterbar{position:relative;z-index:2;display:flex;align-items:center;gap:16px;padding:16px;border:1px solid var(--line);
  border-radius:var(--r-card);background:var(--bg-elev1);flex-wrap:wrap}
.filterbar__pills{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.filterbar__pills::-webkit-scrollbar{display:none}
.filterbar__right{display:flex;align-items:center;gap:12px;margin-left:auto}
.filterbar__count{font-size:13px;color:var(--text-3);white-space:nowrap}
.select{appearance:none;height:40px;padding:0 38px 0 14px;border-radius:var(--r-input);border:1px solid var(--line);
  background:var(--bg-elev2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A9B6CC' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 14px center;
  color:var(--text-1);font-size:14px;transition:border-color .2s,box-shadow .2s}
.select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,224,196,.18);outline:none}

/* 卡片 */
.grid{display:grid;gap:24px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.card{display:flex;flex-direction:column;background:var(--bg-elev2);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;transition:transform .2s var(--ease),border-color .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);
  box-shadow:var(--shadow-card),0 0 0 1px var(--primary-soft),0 16px 36px rgba(23,224,196,.12)}
.card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-elev1)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card__media img{transform:scale(1.04)}
.card__media .badge{position:absolute;top:12px;left:12px;z-index:2}
.card__body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card__title{font-size:18px;line-height:1.4;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__desc{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px}
.price{font-size:20px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums}
.price small{font-size:13px;font-weight:600;color:var(--text-3);margin-left:4px}
.score{display:inline-flex;align-items:center;gap:5px;font-size:13px;color:var(--accent-2);font-variant-numeric:tabular-nums}
.score span{color:var(--text-3)}
.card__list{display:flex;flex-direction:column;gap:8px;font-size:14px;color:var(--text-2)}
.card__list li{display:flex;gap:8px;align-items:flex-start}
.card__list i{color:var(--primary);font-size:12px;margin-top:7px}

/* 大图 + 分组区块 */
.feature{display:grid;grid-template-columns:1.05fr 1fr;border:1px solid var(--line);border-radius:var(--r-card-lg);
  overflow:hidden;background:var(--bg-elev1);box-shadow:var(--shadow-card)}
.feature__media{position:relative;min-height:340px}
.feature__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.feature__media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 40%,rgba(14,22,38,.75))}
.feature__body{padding:40px;display:flex;flex-direction:column;gap:16px;justify-content:center}
.feature__title{font-size:clamp(21px,2.4vw,28px);font-weight:700;line-height:1.3}
.feature__text{color:var(--text-2);font-size:15px}
.feature__stats{display:flex;gap:28px;flex-wrap:wrap;padding-top:6px}
.feature__stats div{font-size:13px;color:var(--text-3)}
.feature__stats b{display:block;font-size:22px;font-weight:800;color:var(--accent-2);font-variant-numeric:tabular-nums;margin-bottom:2px}
.group{margin-top:72px}
.group:first-of-type{margin-top:0}
.group__head{display:flex;align-items:center;gap:14px;margin-bottom:28px;flex-wrap:wrap}
.group__head h3{font-size:20px;font-weight:700;display:flex;align-items:center;gap:12px}
.group__head h3::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(23,224,196,.8)}
.group__head p{font-size:14px;color:var(--text-3)}
.group__count{margin-left:auto;font-size:13px;color:var(--text-3)}

/* 横向宽卡 */
.card--wide{flex-direction:row}
.card--wide .card__media{aspect-ratio:auto;width:44%;min-height:230px;flex:0 0 44%}
.card--wide .card__body{padding:28px}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding:26px 22px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--bg-elev1);
  transition:transform .2s var(--ease),border-color .2s}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.step__num{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-weight:800;color:#04231E;
  background:linear-gradient(140deg,var(--primary),#0FB39E);font-variant-numeric:tabular-nums}
.step h4{font-size:17px;font-weight:700;margin:16px 0 8px}
.step p{font-size:14px;color:var(--text-2)}

/* 评价横滚 */
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 4px 18px;
  scrollbar-width:none;-webkit-overflow-scrolling:touch;mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%)}
.rail::-webkit-scrollbar{display:none}
.quote{flex:0 0 340px;scroll-snap-align:start;padding:24px;border-radius:var(--r-card)}
.quote__head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.quote__avatar{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-weight:800;color:#04231E;
  background:linear-gradient(140deg,var(--accent-2),#E0A93A);flex:0 0 44px}
.quote__name{font-size:15px;font-weight:600}
.quote__role{font-size:12px;color:var(--text-3)}
.quote__stars{color:var(--accent-2);font-size:12px;letter-spacing:2px;margin-bottom:10px}
.quote__text{font-size:14px;color:var(--text-2);line-height:1.8}
.quote__tag{margin-top:16px;display:inline-flex;font-size:12px;color:var(--primary);border:1px solid rgba(23,224,196,.3);
  background:var(--primary-soft);border-radius:var(--r-pill);padding:4px 12px}
.rail-ctrl{display:flex;gap:10px}
.rail-ctrl button{width:44px;height:44px;border-radius:50%;border:1px solid var(--line-strong);color:var(--text-2);
  display:grid;place-items:center;transition:all .2s var(--ease)}
.rail-ctrl button:hover{color:var(--primary);border-color:rgba(23,224,196,.5);box-shadow:var(--glow-primary);transform:translateY(-2px)}

/* FAQ */
.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}
.faq__list{display:flex;flex-direction:column;gap:12px}
.faq__item{border:1px solid var(--line);border-radius:12px;background:var(--bg-elev1);overflow:hidden;transition:border-color .2s}
.faq__item.is-open{border-color:rgba(23,224,196,.4)}
.faq__q{position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;
  padding:14px 20px 14px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text-1)}
.faq__q::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:0 3px 3px 0;background:var(--primary);
  opacity:0;box-shadow:0 0 14px rgba(23,224,196,.8);transition:opacity .2s}
.faq__item.is-open .faq__q::before{opacity:1}
.faq__q i{font-size:13px;color:var(--text-3);transition:transform .18s var(--ease)}
.faq__item.is-open .faq__q i{transform:rotate(180deg);color:var(--primary)}
.faq__a{max-height:0;overflow:hidden;transition:max-height .25s var(--ease)}
.faq__item.is-open .faq__a{max-height:320px}
.faq__a p{padding:0 20px 20px 22px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* CTA */
.cta-band{position:relative;border-radius:var(--r-card-lg);border:1px solid rgba(23,224,196,.34);overflow:hidden;
  background:var(--bg-elev1);box-shadow:0 0 0 1px rgba(23,224,196,.10),0 20px 50px rgba(0,0,0,.45)}
.cta-band::before{content:"";position:absolute;inset:0;
  background:radial-gradient(60% 70% at 20% 0%,rgba(23,224,196,.16),transparent 65%)}
.cta-band__inner{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:36px;padding:44px;align-items:center}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3}
.cta-band p{color:var(--text-2);font-size:15px;margin-top:12px}
.cta-checks{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:20px}
.cta-checks li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.cta-checks i{color:var(--primary);font-size:12px}
.cta-box{background:var(--bg-elev2);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;text-align:center}
.cta-box__old{font-size:14px;color:var(--text-3);text-decoration:line-through}
.cta-box__now{font-size:28px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;margin:6px 0 4px}
.cta-box__note{font-size:13px;color:var(--text-3);margin-bottom:18px}
.cta-box .btn{margin-top:10px}

/* 表单区（保障/咨询） */
.assure{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.assure__item{padding:22px;border-radius:var(--r-card);text-align:left}
.assure__item i{font-size:18px;color:var(--primary)}
.assure__item h4{font-size:15px;font-weight:700;margin:12px 0 6px}
.assure__item p{font-size:13px;color:var(--text-2);line-height:1.7}

/* 空态 */
.empty{display:flex;flex-direction:column;align-items:center;gap:12px;padding:48px 24px;border:1px dashed var(--line-strong);
  border-radius:var(--r-card);color:var(--text-3);text-align:center;background:transparent}
.empty i{font-size:24px;color:var(--text-3)}
.empty p{font-size:14px}

/* 页脚 */
.site-footer{background:var(--bg-elev1);border-top:1px solid var(--line);padding:72px 0 0;margin-top:0}
.footer__grid{display:grid;grid-template-columns:4fr 2.7fr 2.7fr 2.6fr;gap:36px}
.footer__brand p{color:var(--text-2);font-size:14px;margin-top:16px;max-width:340px}
.footer__title{font-size:15px;font-weight:700;margin-bottom:16px}
.footer__links{display:flex;flex-direction:column;gap:10px}
.footer__links a{font-size:14px;color:var(--text-2)}
.footer__links a:hover{color:var(--primary)}
.footer__contact{display:flex;flex-direction:column;gap:12px}
.footer__contact li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.footer__contact i{color:var(--primary);margin-top:5px;font-size:13px}
.footer__bottom{margin-top:56px;border-top:1px solid var(--line);padding:24px 0 32px;display:flex;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
.footer__bottom a{color:var(--text-3)}
.footer__bottom a:hover{color:var(--primary)}

/* 响应式 */
@media(max-width:1279px){
  .section{padding:84px 0}
}
@media(max-width:1024px){
  .nav__links{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .header__cta{display:none}
  .hero__grid{grid-template-columns:1fr;gap:36px}
  .hero__title{font-size:clamp(28px,5vw,40px)}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .metrics__grid{grid-template-columns:repeat(2,1fr)}
  .metric{border-bottom:1px solid var(--line)}
  .metric:nth-child(2n){border-right:0}
  .metric:nth-child(3),.metric:nth-child(4){border-bottom:0}
  .steps{grid-template-columns:repeat(2,1fr)}
  .feature{grid-template-columns:1fr}
  .feature__media{min-height:260px}
  .feature__media::after{background:linear-gradient(to top,rgba(14,22,38,.85),transparent 60%)}
  .faq{grid-template-columns:1fr;gap:28px}
  .assure{grid-template-columns:repeat(2,1fr)}
  .cta-band__inner{grid-template-columns:1fr;padding:34px}
  .section{padding:72px 0}
}
@media(max-width:768px){
  .section{padding:64px 0}
  .card--wide{flex-direction:column}
  .card--wide .card__media{width:100%;flex:0 0 auto;aspect-ratio:16/10}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer__brand{grid-column:1 / -1}
  .quote{flex:0 0 82%}
  .section__head{margin-bottom:28px}
}
@media(max-width:560px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .header__inner{height:60px}
  .logo{font-size:16px}
  .hero{padding-bottom:56px}
  .hero__title{font-size:30px}
  .hero__sub{font-size:15px}
  .hero__actions .btn{flex:1 1 auto;min-width:140px}
  .hero__glass{left:12px;right:12px;bottom:12px;padding:12px 6px}
  .glass__num{font-size:20px}
  .glass__label{font-size:11px}
  .grid--3,.grid--2{grid-template-columns:1fr}
  .metrics__grid{grid-template-columns:1fr 1fr}
  .metric{padding:22px 18px}
  .metric__num{font-size:22px}
  .steps{grid-template-columns:1fr}
  .assure{grid-template-columns:1fr}
  .feature__body{padding:26px}
  .cta-band__inner{padding:26px}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start}
  .filterbar{padding:14px}
  .filterbar__right{width:100%;margin-left:0}
  .select{flex:1}
}