/* roulang page: index */
*,*::before,*::after{box-sizing:border-box}
:root{
--c-primary:#2563EB;
--c-primary-deep:#1D4ED8;
--c-accent:#FF6F9C;
--c-accent-deep:#C13A63;
--c-lilac:#8B7CF6;
--c-ink:#0F172A;
--c-sub:#475569;
--c-line:#E2E8F0;
--bg:#F7F9FC;
--card:#FFFFFF;
--c-tint:#EEF3FF;
--shadow:0 8px 24px rgba(37,99,235,.08);
--shadow-hover:0 12px 32px rgba(37,99,235,.14);
--r:16px;
--r-sm:12px;
}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--c-ink);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 16px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(37,99,235,.10)}
.nav-toggle{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.nav-bar{display:flex;align-items:center;gap:12px;height:64px}
.brand{display:flex;align-items:center;gap:10px;min-height:44px}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;letter-spacing:-.02em;box-shadow:0 6px 14px rgba(37,99,235,.26)}
.brand-name{display:flex;flex-direction:column;line-height:1.2}
.brand-name strong{font-size:15px;font-weight:800;letter-spacing:-.01em}
.brand-name span{font-size:11px;color:var(--c-sub);letter-spacing:.06em}
.nav-links,.nav-tools{display:none}
.nav-burger{margin-left:auto;width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:12px;border:1px solid var(--c-line);background:#fff;cursor:pointer}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink)}
.nav-drawer{display:none;position:fixed;inset:0;background:#fff;z-index:80;padding:76px 20px 32px;overflow-y:auto}
#navToggle:checked~.nav-drawer{display:block}
.drawer-close{position:absolute;top:14px;right:16px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;font-size:26px;line-height:1;border-radius:12px;border:1px solid var(--c-line);color:var(--c-sub);cursor:pointer}
.nav-drawer a.d-link{display:flex;align-items:center;height:52px;border-bottom:1px solid var(--c-line);font-size:16px;font-weight:600}
.nav-drawer .btn{width:100%;margin-top:20px}
@media(min-width:1024px){
.nav-bar{height:72px;gap:20px}
.nav-burger{display:none}
.nav-drawer{display:none!important}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-links a{position:relative;display:flex;align-items:center;height:44px;padding:0 10px;font-size:13.5px;font-weight:600;color:var(--c-sub);transition:color .18s ease}
.nav-links a::after{content:"";position:absolute;left:10px;right:10px;bottom:6px;height:2px;border-radius:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search input{width:148px;height:40px;border-radius:12px;border:1px solid var(--c-line);background:var(--bg);padding:0 12px 0 34px;font-size:14px;outline:none;transition:border-color .18s,box-shadow .18s,background .18s}
.nav-search input:focus{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(37,99,235,.14)}
.nav-search svg{position:absolute;left:11px;width:16px;height:16px;color:var(--c-sub);pointer-events:none}
.nav-cat{font-size:13.5px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;height:44px;padding:0 4px}
.nav-cat:hover{color:var(--c-primary-deep);text-decoration:underline;text-underline-offset:4px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:12px;font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(37,99,235,.22)}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary)}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

/* common section */
.sec{padding:48px 0}
@media(min-width:768px){.sec{padding:64px 0}}
@media(min-width:1024px){.sec{padding:80px 0}}
.sec-white{background:#fff}
.sec-tint{background:var(--c-tint)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:10px 20px;margin-bottom:24px}
.sec-head h2{position:relative;padding-left:14px;font-size:22px;font-weight:800;letter-spacing:-.015em;line-height:1.35}
.sec-head h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:5px;height:20px;border-radius:3px;background:var(--c-accent)}
.sec-sub{margin-top:8px;color:var(--c-sub);font-size:14px;max-width:64ch}
@media(min-width:768px){.sec-head h2{font-size:26px}}
@media(min-width:1024px){.sec-head h2{font-size:28px}}
.link-more{display:inline-flex;align-items:center;min-height:44px;color:var(--c-primary);font-size:14px;font-weight:700}
.link-more:hover{color:var(--c-primary-deep);text-decoration:underline;text-underline-offset:4px}

/* hero */
.hero{position:relative;overflow:hidden;padding:32px 0 44px;background:linear-gradient(180deg,#fff 0%,#F7F9FC 100%)}
.hero-bg{position:absolute;inset:0;background:url("/assets/images/2f5ff35f9610a5c4.jpg") center/cover no-repeat;opacity:.07;pointer-events:none}
.hero-inner{position:relative;display:grid;gap:28px}
@media(min-width:1024px){.hero-inner{grid-template-columns:1.05fr .95fr;align-items:center;gap:48px}.hero{padding:48px 0 64px}}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;border:1px solid rgba(255,111,156,.42);background:rgba(255,111,156,.09);color:var(--c-accent-deep);font-size:13px;font-weight:700}
.hero h1{font-size:clamp(28px,4.4vw,48px);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin:14px 0 12px}
.hero h1 mark{background:transparent;color:var(--c-accent)}
.hero-sub{font-size:15px;font-weight:600;color:var(--c-primary);letter-spacing:.01em}
.hero-desc{margin:14px 0 22px;color:var(--c-sub);font-size:15px;max-width:62ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:26px;padding-top:20px;border-top:1px solid var(--c-line)}
.hero-facts div{display:flex;flex-direction:column;gap:2px}
.hero-facts b{font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.hero-facts b em{font-style:normal;font-size:12px;font-weight:600;color:var(--c-sub);margin-left:3px}
.hero-facts span{font-size:12px;color:var(--c-sub)}
.hero-cards{position:relative}
.hc{position:relative;border-radius:var(--r);overflow:hidden;background:var(--c-tint);box-shadow:var(--shadow)}
.hc img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9}
.hc-sub{display:none}
.hc-badge{position:absolute;top:10px;left:10px;padding:2px 10px;font-size:12px;font-weight:700;color:#fff;background:var(--c-primary);border-radius:4px 4px 4px 0;clip-path:polygon(0 0,100% 0,100% 100%,7px 100%)}
.hc-badge.sc{left:auto;right:10px;clip-path:none;border-radius:999px;background:rgba(15,23,42,.72)}
.hc-foot{position:absolute;left:10px;bottom:10px;padding:2px 10px;border-radius:999px;background:rgba(255,255,255,.94);color:var(--c-ink);font-size:12px;font-weight:700}
.hero-plate{display:none}
@media(min-width:1024px){
.hero-cards{height:460px}
.hc{position:absolute;width:60%;aspect-ratio:3/4}
.hc img{aspect-ratio:auto;height:100%}
.hc-main{left:0;top:14px;transform:rotate(-2.5deg);z-index:3}
.hc-sub{display:block;right:0;top:76px;width:48%;transform:rotate(3deg);z-index:2}
.hero-plate{display:block;position:absolute;left:34px;right:4px;top:52px;bottom:0;border-radius:20px;background:var(--c-tint);z-index:1}
}

/* metrics */
.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(min-width:768px){.metrics{grid-template-columns:repeat(4,1fr);gap:16px}}
.metric{background:#fff;border-radius:var(--r);border-left:4px solid var(--c-primary);padding:18px 16px;box-shadow:var(--shadow);transition:box-shadow .2s ease,transform .2s ease}
.metric:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.metric-num{font-size:26px;font-weight:800;line-height:1.2;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.metric-num em{font-style:normal;font-size:13px;font-weight:600;color:var(--c-sub);margin-left:4px}
.metric-label{margin-top:6px;font-size:14px;font-weight:700}
.metric-note{margin-top:4px;font-size:12px;color:var(--c-sub);line-height:1.6}

/* video cards */
.v-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(min-width:768px){.v-grid{grid-template-columns:repeat(3,1fr);gap:16px}}
@media(min-width:1024px){.v-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.v-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:10px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.v-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(255,111,156,.28)}
.v-thumb{position:relative;display:block;aspect-ratio:16/9;border-radius:var(--r-sm);overflow:hidden;background:var(--c-tint)}
.v-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.v-card:hover .v-thumb img{transform:scale(1.05)}
.q-badge{position:absolute;top:8px;left:8px;padding:2px 9px;border-radius:4px 4px 4px 0;font-size:11px;font-weight:700;color:#fff;background:var(--c-primary);clip-path:polygon(0 0,100% 0,100% 100%,7px 100%);font-variant-numeric:tabular-nums}
.q-badge.blu{background:#fff;color:var(--c-lilac);box-shadow:inset 0 0 0 1px var(--c-lilac);clip-path:none;border-radius:5px}
.q-badge.free{background:var(--c-accent)}
.dur{position:absolute;right:8px;bottom:8px;padding:1px 6px;border-radius:5px;background:rgba(15,23,42,.76);color:#fff;font-size:11px;font-variant-numeric:tabular-nums}
.v-body{padding:10px 4px 4px}
.v-body h3{font-size:15px;font-weight:700;line-height:1.45;min-height:44px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.v-body h3 a:hover{color:var(--c-primary)}
.v-meta{margin-top:6px;display:flex;align-items:center;gap:6px;font-size:12px;color:var(--c-sub)}
.v-meta i{width:4px;height:4px;border-radius:50%;background:var(--c-line);display:inline-block}

/* horizontal cards */
.h-grid{display:grid;gap:12px}
@media(min-width:768px){.h-grid{grid-template-columns:repeat(2,1fr);gap:16px}}
@media(min-width:1024px){.h-grid{grid-template-columns:repeat(3,1fr);gap:20px}}
.h-card{display:flex;gap:12px;align-items:center;background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:10px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.h-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(255,111,156,.28)}
.h-thumb{position:relative;flex:0 0 40%;width:40%;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:var(--c-tint)}
.h-thumb img{width:100%;height:100%;object-fit:cover}
.h-body{min-width:0}
.h-body h3{font-size:15px;font-weight:700;line-height:1.4}
.h-state{display:inline-block;margin-top:6px;padding:1px 8px;border-radius:6px;background:var(--c-tint);color:var(--c-primary);font-size:12px;font-weight:700}
.h-time{margin-top:6px;font-size:12px;color:var(--c-sub)}

/* channels */
.ch-grid{display:grid;gap:12px}
@media(min-width:768px){.ch-grid{grid-template-columns:repeat(2,1fr);gap:16px}}
@media(min-width:1024px){.ch-grid{grid-template-columns:repeat(3,1fr);gap:20px}}
.ch-card{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:16px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.ch-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--c-primary)}
.ch-icon{flex:0 0 40px;width:40px;height:40px;border-radius:10px;background:var(--c-tint);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800}
.ch-text strong{display:block;font-size:15px;font-weight:800}
.ch-text em{display:block;margin-top:4px;font-style:normal;font-size:13.5px;color:var(--c-sub);line-height:1.65}
.ch-text small{display:block;margin-top:6px;font-size:12px;color:var(--c-primary);font-weight:700;font-variant-numeric:tabular-nums}

/* zones */
.z-grid{display:grid;gap:14px}
@media(min-width:1024px){
.z-grid{grid-template-columns:repeat(3,1fr);gap:20px}
.z-card:nth-child(1){grid-column:span 2;grid-row:span 2}
.z-card:nth-child(4){grid-column:span 2}
}
.z-card{position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column}
.z-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(255,111,156,.28)}
.z-card:first-child{background-image:linear-gradient(rgba(255,255,255,.94),rgba(255,255,255,.94)),url("/assets/images/b913ba5e4f5b9d0d.jpg");background-size:cover;background-position:center}
.z-num{font-size:13px;font-weight:800;color:var(--c-accent);letter-spacing:.1em;font-variant-numeric:tabular-nums}
.z-card h3{margin-top:6px;font-size:17px;font-weight:800;line-height:1.4}
.z-card p{margin-top:8px;font-size:13.5px;color:var(--c-sub);line-height:1.7}
.z-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:14px}
.z-tags span{padding:2px 9px;border-radius:6px;background:var(--c-tint);color:var(--c-primary);font-size:12px;font-weight:600}

/* quality table */
.table-wrap{position:relative;overflow-x:auto;border:1px solid var(--c-line);border-radius:var(--r);background:#fff;box-shadow:var(--shadow);-webkit-overflow-scrolling:touch}
.q-table{width:100%;min-width:660px;border-collapse:collapse;font-size:14px}
.q-table thead th{position:sticky;top:0;z-index:2;padding:14px 16px;text-align:left;background:#fff;border-bottom:1px solid var(--c-line);font-size:13px;font-weight:700;color:var(--c-sub);white-space:nowrap}
.q-table tbody th,.q-table tbody td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--c-line);font-weight:500;white-space:nowrap}
.q-table tbody tr:nth-child(even){background:var(--bg)}
.q-table tbody th{font-weight:800;color:var(--c-ink)}
.q-table tbody tr:last-child th,.q-table tbody tr:last-child td{border-bottom:none}
.q-table tr.best{background:var(--c-tint)!important}
.q-table tr.best th{border-left:3px solid var(--c-accent);color:var(--c-primary)}
.rec{display:inline-block;margin-left:6px;padding:1px 7px;border-radius:999px;background:var(--c-accent);color:#fff;font-size:11px;font-weight:700;vertical-align:1px}
.bd{display:inline-block;margin-left:6px;padding:1px 7px;border-radius:999px;border:1px solid var(--c-lilac);color:var(--c-lilac);font-size:11px;font-weight:800;vertical-align:1px}
@media(max-width:767px){.table-wrap::after{content:"";position:absolute;top:0;right:0;bottom:0;width:34px;background:linear-gradient(90deg,rgba(255,255,255,0),#fff);pointer-events:none;border-radius:0 var(--r) var(--r) 0}}

/* rank */
.rk-grid{display:grid;gap:6px}
@media(min-width:1024px){.rk-grid{grid-template-columns:1fr 1fr;gap:0 40px}}
.rk-item{display:flex;align-items:center;gap:10px;min-height:48px;padding:0 10px;border-bottom:1px solid var(--c-line);border-radius:8px;transition:background .18s ease}
.rk-item:hover{background:var(--c-tint)}
.rk-no{width:30px;flex:0 0 30px;font-size:19px;font-weight:800;color:var(--c-sub);font-variant-numeric:tabular-nums}
.rk-item:nth-child(1) .rk-no{color:var(--c-accent)}
.rk-item:nth-child(2) .rk-no{color:var(--c-accent);opacity:.82}
.rk-item:nth-child(3) .rk-no{color:var(--c-lilac)}
.rk-name{flex:1;min-width:0;font-size:15px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rk-heat{font-size:12px;color:var(--c-sub);font-variant-numeric:tabular-nums;display:none}
@media(min-width:768px){.rk-heat{display:block}}
.rk-score{font-size:13px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums}
.rk-tag{display:none;padding:1px 8px;border-radius:999px;background:var(--c-tint);color:var(--c-primary);font-size:12px;font-weight:600}
@media(min-width:1024px){.rk-tag{display:inline-block}}

/* milestone */
.tl{position:relative;max-width:760px;padding-left:26px}
.tl::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;border-radius:2px;background:var(--c-primary);opacity:.28}
.tl-item{position:relative;padding-bottom:24px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-26px;top:6px;width:14px;height:14px;border-radius:50%;background:#fff;border:2px solid var(--c-primary);box-sizing:border-box}
.tl-v{display:inline-block;padding:1px 9px;border-radius:6px;background:var(--c-tint);color:var(--c-primary);font-size:12px;font-weight:800;font-variant-numeric:tabular-nums}
.tl-date{margin-left:8px;font-size:12px;color:var(--c-sub)}
.tl-item p{margin-top:6px;font-size:14px;color:var(--c-sub);line-height:1.7}

/* calendar */
.cal{display:grid;gap:10px}
@media(min-width:768px){.cal{grid-template-columns:repeat(2,1fr);gap:14px}}
@media(min-width:1024px){.cal{grid-template-columns:repeat(7,1fr);gap:12px}}
.cal-day{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);padding:12px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:6px}
.cal-name{font-size:13px;font-weight:800;color:var(--c-primary)}
.cal-item{font-size:12.5px;color:var(--c-sub);line-height:1.6}
.cal-item b{color:var(--c-ink);font-weight:700}

/* news */
.news-grid{display:grid;gap:14px}
@media(min-width:768px){.news-grid{grid-template-columns:1fr 1fr;gap:16px}}
@media(min-width:1024px){.news-grid{gap:20px}}
.news-card{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:12px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(255,111,156,.28)}
.news-thumb{flex:0 0 38%;width:38%;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:var(--c-tint)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{min-width:0}
.news-body h3{font-size:15px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover h3{color:var(--c-primary)}
.news-meta{margin-top:8px;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--c-sub)}
.news-meta span{padding:1px 8px;border-radius:999px;background:var(--c-tint);color:var(--c-primary);font-weight:600}

/* guarantee */
.g-grid{display:grid;gap:24px}
@media(min-width:1024px){.g-grid{grid-template-columns:1fr 2fr;gap:40px}}
@media(min-width:1024px){.g-left{position:sticky;top:96px;align-self:start}}
.g-left h2{position:relative;padding-left:14px;font-size:22px;font-weight:800;line-height:1.35}
.g-left h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:5px;height:20px;border-radius:3px;background:var(--c-accent)}
.g-left p{margin-top:10px;font-size:14px;color:var(--c-sub);max-width:34ch}
@media(min-width:768px){.g-left h2{font-size:26px}}
.g-list{display:grid;gap:12px}
@media(min-width:768px){.g-list{grid-template-columns:1fr 1fr;gap:16px}}
.g-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:18px;box-shadow:var(--shadow)}
.g-icon{width:36px;height:36px;border-radius:10px;background:var(--c-tint);display:flex;align-items:center;justify-content:center;color:var(--c-primary)}
.g-item h3{margin-top:10px;font-size:15px;font-weight:800}
.g-item p{margin-top:6px;font-size:13.5px;color:var(--c-sub);line-height:1.7}

/* quick answer */
.qa-grid{display:grid;gap:12px}
@media(min-width:1024px){.qa-grid{grid-template-columns:repeat(3,1fr);gap:20px}}
.qa-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:18px;box-shadow:var(--shadow)}
.qa-q{font-size:15px;font-weight:800;line-height:1.5}
.qa-a{margin-top:8px;font-size:13.5px;color:var(--c-sub);line-height:1.7}

/* faq */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:0 18px;box-shadow:var(--shadow);transition:box-shadow .2s ease,border-color .2s ease}
.faq-item summary{position:relative;padding:16px 34px 16px 0;cursor:pointer;font-size:15px;font-weight:700;line-height:1.6;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:20px;font-weight:700;color:var(--c-primary);line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-item[open]{border-color:rgba(255,111,156,.4);box-shadow:inset 3px 0 0 0 var(--c-accent),0 8px 24px rgba(37,99,235,.08)}
.faq-a{padding:0 0 18px;font-size:14px;color:var(--c-sub);line-height:1.8;max-width:68ch}

/* subscribe */
.sub-card{background:#fff;border:1px solid var(--c-line);border-radius:20px;box-shadow:var(--shadow);padding:24px;max-width:820px;margin:0 auto}
@media(min-width:768px){.sub-card{padding:36px}}
.sub-card h2{font-size:22px;font-weight:800;line-height:1.35}
@media(min-width:768px){.sub-card h2{font-size:26px}}
.sub-card>p{margin-top:8px;font-size:14px;color:var(--c-sub)}
.sub-form{display:grid;gap:14px;margin-top:22px}
@media(min-width:768px){.sub-form{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:6px}
.field .lbl{font-size:13px;font-weight:700;color:var(--c-sub)}
.field input,.field select{width:100%;height:48px;border-radius:12px;border:1px solid var(--c-line);background:#fff;padding:0 14px;font-size:15px;outline:none;transition:border-color .18s ease,box-shadow .18s ease}
.field input:focus,.field select:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(37,99,235,.16)}
.form-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
@media(min-width:768px){.form-actions{grid-column:1/-1}}
.form-err{font-size:12px;color:#DC2626;line-height:1.5}
.form-hint{font-size:12px;color:var(--c-sub);grid-column:1/-1}

/* footer */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:40px 0 0}
.footer-grid{display:grid;gap:28px}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}
.f-desc{margin-top:12px;font-size:13.5px;color:var(--c-sub);max-width:26ch}
.f-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.f-tags span{padding:2px 10px;border-radius:999px;background:var(--c-tint);color:var(--c-primary);font-size:12px;font-weight:600}
.f-col h4{font-size:14px;font-weight:800;margin-bottom:12px}
.f-col li{margin-bottom:4px}
.f-col a,.f-col .f-domain{display:inline-flex;align-items:center;min-height:36px;font-size:13.5px;color:var(--c-sub)}
.f-col a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}
.f-domain{font-variant-numeric:tabular-nums;letter-spacing:.02em}
.footer-bottom{margin-top:32px;padding:16px 0 24px;border-top:1px solid var(--c-line);text-align:center}
.footer-bottom p{font-size:12.5px;color:#94A3B8}