/* ============================================================
   China Travel Playbook — shared stylesheet
   设计语言：纯黑底 + 纯白字 + 青色强调（取自 FLASH 排版参考）
   色板实测（FLASH 大标题取样 n=100+）：H 175–180 / S .46–.50 / V .82–.85
     底 #000000 · 字 #FFFFFF · 强调 #6FD5CB（hover #8CE3DA）
   ============================================================ */

:root{
  --bg:#000000; --bg-2:#070909; --bg-3:#0E1111; --bg-4:#151919;
  --line:rgba(255,255,255,.10); --line-2:rgba(255,255,255,.22);
  --text:#FFFFFF; --text-2:rgba(255,255,255,.66); --text-3:rgba(255,255,255,.40);
  --aqua:#6FD5CB; --aqua-2:#8CE3DA;
  --display:'Montserrat','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --r:14px;
  --wrap:1240px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--sans);background:var(--bg);color:var(--text);
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
/* <picture> 只做格式分发，不参与布局：让包裹层从盒模型里消失，
   使内部 <img> 与改造前的定位/尺寸规则完全一致 */
picture{display:contents}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 34px}
.rule{height:1px;background:var(--line);border:0}

/* ---------- 排版 ---------- */
.eyebrow{
  font-size:11.5px;font-weight:600;letter-spacing:.24em;
  text-transform:uppercase;color:var(--aqua);margin-bottom:18px;
}
.h-xl{
  font-family:var(--display);font-weight:800;letter-spacing:-.028em;line-height:.96;
  text-transform:uppercase;color:var(--aqua);
  font-size:clamp(2.4rem,6.6vw,6.8rem);
  text-shadow:0 2px 34px rgba(0,0,0,.72);
}
.h-lg{
  font-family:var(--display);font-weight:800;letter-spacing:-.02em;line-height:1.04;
  text-transform:uppercase;color:var(--text);
  font-size:clamp(1.9rem,4.2vw,3.2rem);
}
.h-md{
  font-family:var(--display);font-weight:700;letter-spacing:-.015em;line-height:1.2;
  color:var(--text);font-size:clamp(1.15rem,1.8vw,1.4rem);
}
.sub{color:var(--text-2);font-size:15.5px;line-height:1.7}
.sec{padding:112px 0;position:relative}
.sec-head{text-align:center;max-width:660px;margin:0 auto 58px}
.sec-head .h-lg{margin-bottom:16px}

/* ---------- 按钮 ---------- */
.btn-aqua{
  display:inline-block;font-family:var(--display);font-weight:700;font-size:13.5px;
  letter-spacing:.06em;text-transform:uppercase;
  color:#000;background:var(--aqua);border:0;border-radius:999px;
  padding:16px 34px;transition:background .2s,transform .2s;
}
.btn-aqua:hover{background:var(--aqua-2);transform:translateY(-1px)}
.btn-ghost{
  display:inline-block;font-family:var(--display);font-weight:700;font-size:13.5px;
  letter-spacing:.06em;text-transform:uppercase;
  color:#fff;background:transparent;border:1px solid var(--line-2);border-radius:999px;
  padding:15px 30px;transition:border-color .2s,background .2s;
}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn-pay{
  width:100%;display:block;text-align:center;
  font-family:var(--display);font-weight:800;font-size:13.5px;letter-spacing:.06em;text-transform:uppercase;
  color:#000;background:var(--aqua);border:0;border-radius:999px;padding:18px 28px;
  transition:background .2s,transform .2s;
}
.btn-pay:hover{background:var(--aqua-2);transform:translateY(-1px)}
/* 圆形切换按钮 —— 实心白底黑箭头（FLASH 参考的播放/翻页按钮语言） */
.arrow-btn{
  width:50px;height:50px;border-radius:50%;
  background:#FFFFFF;border:1px solid #FFFFFF;color:#000;
  display:grid;place-items:center;
  transition:background .2s,border-color .2s,transform .2s,box-shadow .2s;
  box-shadow:0 6px 22px rgba(0,0,0,.45);
}
.arrow-btn:hover{background:var(--aqua);border-color:var(--aqua);transform:translateY(-2px)}
.arrow-btn:active{transform:translateY(0)}
.arrow-btn svg{width:18px;height:18px;stroke-width:2.4}

/* ---------- header ---------- */
header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(0,0,0,.34);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .3s,border-color .3s;
}
header.solid{background:rgba(0,0,0,.88);border-bottom-color:var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:800;font-size:14.5px;letter-spacing:.06em;text-transform:uppercase;color:#fff;white-space:nowrap}
.logo .dot{width:9px;height:9px;border-radius:50%;background:var(--aqua);flex:none}
.nav{display:flex;gap:34px;font-size:13px;font-weight:500}
.nav a{color:var(--text-2);transition:color .2s;position:relative;padding-bottom:3px}
.nav a::after{content:'';position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--aqua);transition:right .25s}
.nav a:hover{color:#fff}
.nav a:hover::after{right:0}
.bar-right{display:flex;align-items:center;gap:16px}
.hdr-cta{
  font-family:var(--display);font-weight:700;font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;
  color:#000;background:var(--aqua);padding:11px 22px;border-radius:999px;
  transition:background .2s,transform .2s;white-space:nowrap;
}
.hdr-cta:hover{background:var(--aqua-2);transform:translateY(-1px)}
.burger{display:none;width:40px;height:40px;background:transparent;border:1px solid var(--line-2);border-radius:10px;position:relative}
.burger span{position:absolute;left:11px;right:11px;height:1.5px;background:#fff;transition:transform .25s,opacity .2s}
.burger span:nth-child(1){top:14px}.burger span:nth-child(2){top:19.5px}.burger span:nth-child(3){top:25px}
.burger.on span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.burger.on span:nth-child(2){opacity:0}
.burger.on span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}
.mnav{
  display:none;position:fixed;top:76px;left:0;right:0;z-index:89;
  background:rgba(0,0,0,.97);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);padding:14px 34px 26px;
}
.mnav.on{display:block}
.mnav a{display:block;padding:14px 0;border-bottom:1px solid var(--line);font-family:var(--display);font-weight:700;font-size:16px;text-transform:uppercase;letter-spacing:.03em;color:var(--text-2)}
.mnav a:last-child{border-bottom:0}
.mnav a:hover{color:var(--aqua)}

/* ---------- hero（通用） ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:52% 50%}
/* 径向羽化遮罩：只在左侧文字柱压暗，右侧画面完整透出
   实测（1440x900 / 2400x1200）标题带 p95 对比度 3.78 / 3.94 ✅（大字门槛 3.0） */
.hero-veil{
  position:absolute;inset:0;
  background:
    radial-gradient(102% 79% at 7% 56%,rgba(0,0,0,.72) 0%,rgba(0,0,0,.52) 42%,rgba(0,0,0,.15) 74%,rgba(0,0,0,0) 100%),
    linear-gradient(270deg,rgba(0,0,0,.58) 0%,rgba(0,0,0,.20) 7%,rgba(0,0,0,0) 13%),
    linear-gradient(180deg,rgba(0,0,0,.58) 0%,rgba(0,0,0,.22) 10%,rgba(0,0,0,0) 18%);
}
.hero-inner{position:relative;z-index:2;width:100%}
/* 必须保留 .wrap 的左右 34px 内边距，否则正文块会被 margin:auto 居中、与 header logo 错位 */
.hero-main{padding:150px 34px 44px;max-width:var(--wrap)}
.hero-main .h-xl{max-width:900px}
.hero-main .sub{margin-top:24px;max-width:430px;font-size:14.5px;color:rgba(255,255,255,.76)}
.hero-cta{margin-top:32px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.hero-micro{font-size:12.5px;color:rgba(255,255,255,.58);line-height:1.6}
.hero-micro b{color:rgba(255,255,255,.86);font-weight:500}
.crumbs{display:flex;align-items:center;gap:10px;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.42);margin-bottom:20px}
.crumbs a:hover{color:var(--aqua)}
.crumbs span{opacity:.5}

/* 右侧竖排索引 */
.hero-index{
  position:absolute;right:34px;top:50%;transform:translateY(-50%);z-index:3;
  display:flex;flex-direction:column;gap:20px;align-items:flex-end;
}
.hero-index a{
  display:flex;align-items:center;gap:12px;
  font-family:var(--display);font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:rgba(255,255,255,.62);text-shadow:0 1px 12px rgba(0,0,0,.9);
  transition:color .25s;
}
.hero-index a .ln{display:block;width:0;height:1.5px;background:var(--aqua);transition:width .3s}
.hero-index a .nm{
  font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;opacity:0;
  transition:opacity .25s;max-width:0;overflow:hidden;white-space:nowrap;
}
.hero-index a:hover{color:#fff}
.hero-index a:hover .nm{opacity:1;max-width:150px}
.hero-index a.on{color:var(--aqua)}
.hero-index a.on .ln{width:34px}
.hero-index a.on .nm{opacity:.95;max-width:150px;color:#fff}

/* hero 底部三栏 */
.hero-strip{border-top:1px solid var(--line-2);background:rgba(0,0,0,.60);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.strip-grid{display:grid;grid-template-columns:repeat(3,1fr)}
.strip-cell{padding:30px 32px;border-right:1px solid var(--line);display:flex;gap:16px}
.strip-cell:last-child{border-right:0}
.strip-ico{width:34px;height:34px;flex:none;color:var(--aqua)}
.strip-cell p{font-size:12.8px;color:rgba(255,255,255,.70);line-height:1.6}
.strip-more{
  display:inline-flex;align-items:center;gap:9px;margin-top:16px;
  font-family:var(--display);font-weight:800;font-size:11.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--aqua);
  border-bottom:1px solid rgba(111,213,203,.45);padding-bottom:4px;
  transition:color .2s,border-color .2s;
}
.strip-more:hover{color:var(--aqua-2);border-bottom-color:var(--aqua-2)}
.strip-more svg{width:15px;height:15px;transition:transform .2s}
.strip-more:hover svg{transform:translateX(3px)}

/* ---------- 事实条（4 格） ---------- */
.facts{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-2)}
.facts-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.fact{padding:30px 28px;border-right:1px solid var(--line)}
.fact:last-child{border-right:0}
.fact .n{font-family:var(--display);font-weight:800;font-size:26px;line-height:1;letter-spacing:-.02em;color:#fff}
.fact .n em{font-style:normal;color:var(--aqua)}
.fact .l{margin-top:10px;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--text-3);font-weight:600}

/* ---------- 路线卡 ---------- */
.routes-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:44px;flex-wrap:wrap}
.routes-head .h-lg{margin-bottom:12px}
.routes-nav{display:flex;gap:10px}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 34px 26px;margin:0 -34px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none}
.card{
  position:relative;flex:0 0 auto;width:264px;aspect-ratio:3/4.1;
  border-radius:var(--r);overflow:hidden;scroll-snap-align:center;
  border:1px solid var(--line);background:var(--bg-3);
  transition:transform .35s cubic-bezier(.2,.7,.3,1),border-color .3s,box-shadow .35s,opacity .3s;
}
.card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.3,1),filter .35s}
.card::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.10) 0%,rgba(0,0,0,.30) 46%,rgba(0,0,0,.90) 100%)}
.card-body{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:22px 20px 20px}
.card-idx{font-size:10.5px;font-weight:600;letter-spacing:.2em;color:var(--aqua);margin-bottom:8px}
.card-name{font-family:var(--display);font-weight:800;font-size:21px;letter-spacing:-.01em;text-transform:uppercase;line-height:1.05}
.card-cn{font-size:12px;color:rgba(255,255,255,.52);letter-spacing:.24em;margin-top:5px}
.card-line{font-size:12.5px;color:rgba(255,255,255,.62);margin-top:12px;line-height:1.55;max-height:0;overflow:hidden;opacity:0;transition:max-height .35s,opacity .3s}
.card:hover .card-line{max-height:90px;opacity:1}
.card:hover{transform:translateY(-6px);border-color:var(--line-2)}
.card:hover img{transform:scale(1.05)}
.card.live{border-color:rgba(111,213,203,.42)}
.card.live:hover{border-color:var(--aqua);box-shadow:0 0 0 1px var(--aqua),0 18px 44px rgba(0,0,0,.6)}
.card-badge{
  position:absolute;top:16px;left:16px;z-index:3;
  font-family:var(--display);font-weight:700;font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;
  padding:6px 11px;border-radius:999px;
}
.card-badge.on{background:var(--aqua);color:#000}
.card-badge.soon{background:rgba(0,0,0,.62);border:1px solid var(--line-2);color:rgba(255,255,255,.60)}
.card.locked img{filter:grayscale(1) brightness(.52)}
.card.locked{opacity:.66}
.card.locked:hover{opacity:.88}
.card-arrow{
  position:absolute;top:16px;right:16px;z-index:3;width:34px;height:34px;border-radius:50%;
  background:rgba(0,0,0,.5);border:1px solid rgba(255,255,255,.28);display:grid;place-items:center;
  opacity:0;transition:opacity .3s,background .3s;color:#fff;
}
.card.live:hover .card-arrow{opacity:1;background:var(--aqua);border-color:var(--aqua);color:#000}
.card-arrow svg{width:14px;height:14px}
@media (hover:none){.card-line{max-height:96px;opacity:1}}

/* ---------- value ---------- */
.value-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:72px;align-items:start}
.value-copy .h-lg{margin-bottom:22px}
.value-quote{
  margin-top:30px;padding:22px 24px;border-left:2px solid var(--aqua);
  background:rgba(111,213,203,.05);border-radius:0 10px 10px 0;
}
.value-quote p{font-size:14.5px;color:rgba(255,255,255,.80);line-height:1.7;font-style:italic}
.value-quote span{display:block;margin-top:10px;font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--text-3);font-style:normal}
.hooks{display:grid;border-top:1px solid var(--line)}
.hook{padding:26px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:52px 1fr;gap:20px}
.hook-n{font-family:var(--display);font-weight:800;font-size:13px;letter-spacing:.04em;color:var(--aqua);padding-top:3px}
.hook h3{font-family:var(--display);font-weight:700;font-size:16px;letter-spacing:-.005em;margin-bottom:8px}
.hook p{font-size:13.8px;color:var(--text-2);line-height:1.68}

/* ---------- 目录（详情页） ---------- */
.toc{display:grid;gap:0;border-top:1px solid var(--line)}
.toc-part{border-bottom:1px solid var(--line);padding:30px 0;display:grid;grid-template-columns:180px 1fr;gap:34px}
.toc-part .pt{font-family:var(--display);font-weight:800;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--aqua);padding-top:5px}
.toc-part h3{font-family:var(--display);font-weight:700;font-size:18px;letter-spacing:-.01em;margin-bottom:14px}
.toc-part ul{list-style:none;display:grid;gap:9px}
.toc-part li{font-size:14px;color:var(--text-2);padding-left:20px;position:relative;line-height:1.55}
.toc-part li::before{content:'';position:absolute;left:0;top:9px;width:9px;height:1px;background:rgba(111,213,203,.6)}
/* 目录项用散文（不是清单）时的样式 —— 故意比 li 宽一点、松一点 */
.toc-part .body{font-size:14.5px;color:var(--text-2);line-height:1.72;max-width:620px;margin:0}

/* ---------- 适合/不适合 ---------- */
.fit-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.fit{border:1px solid var(--line);border-radius:var(--r);padding:30px 28px;background:var(--bg-2)}
.fit.yes{border-color:rgba(111,213,203,.30)}
.fit h3{font-family:var(--display);font-weight:700;font-size:15px;letter-spacing:.04em;text-transform:uppercase;margin-bottom:18px}
.fit.yes h3{color:var(--aqua)}
.fit.no h3{color:var(--text-3)}
.fit ul{list-style:none;display:grid;gap:12px}
.fit li{font-size:14px;color:var(--text-2);padding-left:22px;position:relative;line-height:1.6}
.fit li::before{position:absolute;left:0;top:0;font-size:13px}
.fit.yes li::before{content:'✓';color:var(--aqua)}
.fit.no li::before{content:'—';color:var(--text-3)}

/* ---------- pricing ---------- */
.price-wrap{display:grid;grid-template-columns:1fr 400px;gap:64px;align-items:center}
.price-card{
  background:var(--bg-2);border:1px solid var(--line-2);border-radius:20px;padding:44px 38px 38px;
  position:relative;overflow:hidden;
}
.price-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--aqua),var(--aqua-2))}
.price-amt{font-family:var(--display);font-weight:800;font-size:58px;line-height:1;letter-spacing:-.03em;color:#fff}
.price-amt sup{font-size:.3em;font-weight:700;color:var(--text-3);vertical-align:super;margin-left:4px}
.price-per{margin-top:10px;font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--text-3);font-weight:600}
.price-list{list-style:none;margin:30px 0 32px;display:grid;gap:13px}
.price-list li{font-size:14px;color:var(--text-2);padding-left:24px;position:relative;line-height:1.55}
.price-list li::before{content:'';position:absolute;left:0;top:8px;width:11px;height:1.5px;background:var(--aqua)}
.price-card form{margin:0}
.price-fine{margin-top:16px;font-size:12px;color:var(--text-3);line-height:1.65;text-align:center}
.price-fine a{color:var(--text-2);text-decoration:underline;text-underline-offset:2px}

/* ---------- 结账区（主通道 = Waffo 托管结账页，次通道 = PayPal） ---------- */
.pay-primary{margin:0}
.btn-pay:disabled{opacity:.55;cursor:progress;transform:none}
/* 结账进行中：按钮文案旁边转一个小圈，让「点了但没反应」不再是种可能 */
.btn-pay.is-loading::after{
  content:'';display:inline-block;width:11px;height:11px;margin-left:10px;
  border:1.5px solid rgba(0,0,0,.28);border-top-color:#000;border-radius:50%;
  vertical-align:-1px;animation:pay-spin .7s linear infinite;
}
@keyframes pay-spin{to{transform:rotate(360deg)}}

/* 失败提示。默认隐藏，只有真的出错才出现 —— 不要占着位置吓人。 */
.pay-error{
  display:none;margin-top:14px;padding:12px 14px;border-radius:10px;
  background:rgba(223,136,0,.09);border:1px solid rgba(223,136,0,.35);
  font-size:12.5px;line-height:1.6;color:var(--text-2);text-align:left;
}
.pay-error.on{display:block}
.pay-error a{color:var(--aqua);text-decoration:underline;text-underline-offset:2px}

/* 次要通道：折叠成一行小字，不跟主按钮抢注意力 */
.pay-alt{margin-top:22px;border-top:1px solid var(--line);padding-top:16px}
.pay-alt>summary{
  cursor:pointer;list-style:none;font-size:12.5px;color:var(--text-3);
  text-align:center;transition:color .2s;
}
.pay-alt>summary::-webkit-details-marker{display:none}
.pay-alt>summary:hover{color:var(--text-2)}
.pay-alt>summary::after{content:' ▾';font-size:10px}
.pay-alt[open]>summary::after{content:' ▴'}
.pay-alt-body{padding-top:16px}
.pay-alt-body form{margin:0}
/* 次要按钮：视觉降级，不用主色 */
.btn-pay-sub{
  width:100%;display:block;text-align:center;
  font-family:var(--display);font-weight:700;font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--text-2);background:transparent;border:1px solid var(--line-2);border-radius:999px;
  padding:15px 24px;transition:border-color .2s,color .2s,background .2s;
}
.btn-pay-sub:hover{border-color:var(--text-2);color:#fff;background:rgba(255,255,255,.05)}
.pay-alt-note{margin-top:14px;font-size:12px;color:var(--text-3);line-height:1.65;text-align:center}
.pay-alt-note a{color:var(--text-2);text-decoration:underline;text-underline-offset:2px}

/* 部署环境没有 Functions 时（拖文件夹上传），卡支付主按钮点了必然失败。
   开页探测到就把主次调过来，让 PayPal 顶上去当唯一通道 ——
   与其让审核员/买家看到报错，不如一开始就只给能用的那条路。 */
.pay-alt.is-primary{margin-top:0;border-top:0;padding-top:0}
.pay-alt.is-primary>summary{
  font-family:var(--display);font-weight:700;font-size:13px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--text-2);text-align:center;padding:0 0 12px;
}
.pay-alt.is-primary>summary::after{content:''}
.pay-alt.is-primary .btn-pay-sub{
  font-family:var(--display);font-weight:800;font-size:13.5px;
  color:#000;background:var(--aqua);border:0;padding:18px 28px;
}
.pay-alt.is-primary .btn-pay-sub:hover{background:var(--aqua-2);color:#000;transform:translateY(-1px)}


/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);max-width:840px;margin:0 auto}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{
  cursor:pointer;list-style:none;padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:24px;
  font-family:var(--display);font-weight:700;font-size:16px;letter-spacing:-.005em;color:#fff;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:'';width:11px;height:11px;flex:none;border-right:1.5px solid var(--aqua);border-bottom:1.5px solid var(--aqua);transform:rotate(45deg) translateY(-3px);transition:transform .25s}
.faq-list details[open] summary::after{transform:rotate(-135deg) translateY(-3px)}
.faq-list p{padding:0 0 26px;font-size:14px;color:var(--text-2);max-width:700px;line-height:1.72}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);background:var(--bg-2);padding:70px 0 34px}
.foot-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:40px}
.foot-brand .logo{margin-bottom:16px}
.foot-brand p{font-size:13px;color:var(--text-3);line-height:1.7;max-width:290px}
.foot-col h4{font-family:var(--display);font-weight:700;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:18px}
.foot-col a{display:block;font-size:13.5px;color:var(--text-2);padding:5px 0;transition:color .2s}
.foot-col a:hover{color:#fff}
.foot-col a.muted{color:var(--text-3)}
.foot-bottom{
  margin-top:54px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-3);
}
.foot-bottom .soc{display:flex;gap:10px}
.foot-bottom .soc a{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;
  transition:border-color .2s,color .2s;color:var(--text-2);
}
.foot-bottom .soc a:hover{border-color:var(--aqua);color:var(--aqua)}
.foot-bottom .soc svg{width:15px;height:15px}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .value-grid{grid-template-columns:1fr;gap:48px}
  .price-wrap{grid-template-columns:1fr;gap:40px}
  .foot-grid{grid-template-columns:1fr 1fr 1fr;gap:34px}
  .foot-brand{grid-column:1/-1}
  .facts-grid{grid-template-columns:1fr 1fr}
  .fact:nth-child(2){border-right:0}
  .fact:nth-child(1),.fact:nth-child(2){border-bottom:1px solid var(--line)}
  .toc-part{grid-template-columns:1fr;gap:12px}
}
@media (max-width:860px){
  .wrap{padding:0 22px}
  .nav,.hdr-cta{display:none}
  .burger{display:block}
  .hero-index{display:none}
  .hero-main{padding:118px 22px 34px;max-width:none}
  .hero-main .h-xl{max-width:none}
  .hero-img{object-position:80% 48%}
  .hero-veil{
    background:linear-gradient(180deg,rgba(0,0,0,.52) 0%,rgba(0,0,0,.10) 22%,rgba(0,0,0,.56) 56%,rgba(0,0,0,.94) 100%);
  }
  .strip-grid{grid-template-columns:1fr}
  .strip-cell{border-right:0;border-bottom:1px solid var(--line);padding:22px}
  .strip-cell:last-child{border-bottom:0}
  .sec{padding:78px 0}
  .rail{padding:4px 22px 22px;margin:0 -22px}
  .card{width:228px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .fit-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  .price-card{padding:32px 24px 28px}
  .price-amt{font-size:48px}
  .foot-grid{grid-template-columns:1fr}
  .facts-grid{grid-template-columns:1fr}
  .fact{border-right:0;border-bottom:1px solid var(--line)}
  .fact:last-child{border-bottom:0}
}