/* ==========================================================================
   一耽 · 漫画阅读应用专题站  —  共享样式表
   作者：一耽专题站设计组   |   纯本地资源，无任何外部依赖
   ========================================================================== */

/* ----------  设计变量  ---------- */
:root {
  --c-primary: #ff6b6b;
  --c-primary-d: #e8556b;
  --c-primary-l: #ffeae4;
  --c-primary-l2: #fff3ee;
  --c-accent: #4ecdc4;
  --c-accent-d: #2fa79e;
  --c-accent-l: #e4f7f5;
  --c-gold: #ffb84c;
  --c-violet: #8a7bf0;
  --c-ink: #2e2a39;
  --c-ink-2: #4a4458;
  --c-muted: #837c92;
  --c-bg: #fff8f3;
  --c-bg-2: #fff1e9;
  --c-card: #ffffff;
  --c-line: #f2e7de;
  --shadow-s: 0 4px 14px rgba(180, 120, 100, .08);
  --shadow-m: 0 12px 30px rgba(180, 120, 100, .12);
  --shadow-l: 0 22px 55px rgba(180, 110, 95, .16);
  --radius-s: 12px;
  --radius-m: 18px;
  --radius-l: 26px;
  --maxw: 1180px;
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
}

/* ----------  基础重置  ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--c-ink);
  background: var(--c-bg);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; border: 0; }
a { color: var(--c-primary-d); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--c-primary); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
h1, h2, h3, h4 { line-height: 1.35; font-weight: 800; color: var(--c-ink); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.section { padding: 76px 0; }
.section--tight { padding: 54px 0; }
.section--alt { background: linear-gradient(180deg, #fff 0%, var(--c-bg) 100%); }

/* ----------  通用排版  ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: .14em;
  color: var(--c-primary-d); background: var(--c-primary-l);
  padding: 6px 16px; border-radius: 999px; margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--c-primary); }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 46px; }
.sec-head h2 { font-size: 34px; margin-bottom: 14px; }
.sec-head h2 em { font-style: normal; color: var(--c-primary); }
.sec-head p { color: var(--c-muted); font-size: 16px; }
.sec-head--left { text-align: left; margin-left: 0; }

.grad-text {
  background: linear-gradient(100deg, var(--c-primary), #ff9a6b 55%, var(--c-gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ----------  按钮  ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 30px; border-radius: 999px; font-weight: 700; font-size: 16px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn svg { width: 19px; height: 19px; }
.btn-primary {
  background: linear-gradient(100deg, #ff7f6b, var(--c-primary-d));
  color: #fff; box-shadow: 0 10px 24px rgba(232, 85, 107, .34);
}
.btn-primary:hover { color: #fff; transform: translateY(-3px); box-shadow: 0 16px 32px rgba(232, 85, 107, .42); }
.btn-ghost { background: #fff; color: var(--c-ink); box-shadow: var(--shadow-s); border: 1px solid var(--c-line); }
.btn-ghost:hover { color: var(--c-primary-d); transform: translateY(-3px); }
.btn-lg { padding: 16px 40px; font-size: 17px; }
.btn-block { width: 100%; }

/* ----------  顶部导航  ---------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255, 248, 243, .9);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--c-line);
}
.nav { display: flex; align-items: center; gap: 22px; height: 74px; }
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand img { width: 42px; height: 42px; border-radius: 12px; box-shadow: var(--shadow-s); }
.brand .brand-name { font-size: 23px; font-weight: 800; letter-spacing: .04em; color: var(--c-ink); }
.brand .brand-sub { font-size: 11px; color: var(--c-muted); letter-spacing: .18em; display: block; margin-top: -3px; }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links a {
  color: var(--c-ink-2); font-weight: 600; font-size: 15px;
  padding: 9px 15px; border-radius: 999px; transition: all .2s ease;
}
.nav-links a:hover { background: var(--c-primary-l2); color: var(--c-primary-d); }
.nav-links a.active { background: var(--c-primary-l); color: var(--c-primary-d); }
.nav-cta { margin-left: 10px; padding: 11px 24px; font-size: 15px; }
.nav-toggle {
  display: none; width: 44px; height: 44px; border-radius: 12px;
  background: #fff; box-shadow: var(--shadow-s); margin-left: auto;
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.nav-toggle span { width: 20px; height: 2px; background: var(--c-ink); border-radius: 2px; transition: .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ----------  Hero  ---------- */
.hero { position: relative; overflow: hidden; padding: 70px 0 84px; }
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(70px); z-index: 0;
}
.hero::before { width: 480px; height: 480px; background: rgba(255, 138, 101, .28); top: -160px; right: -120px; }
.hero::after { width: 420px; height: 420px; background: rgba(78, 205, 196, .22); bottom: -180px; left: -140px; }
.hero-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 54px; align-items: center;
}
.hero h1 { font-size: 52px; line-height: 1.2; letter-spacing: .02em; margin-bottom: 20px; }
.hero h1 .hl {
  background: linear-gradient(100deg, var(--c-primary), #ff9a6b);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { font-size: 17px; color: var(--c-ink-2); max-width: 540px; margin-bottom: 26px; }
.hero-lead strong { color: var(--c-primary-d); font-weight: 700; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }

.page-hero { position: relative; overflow: hidden; padding: 58px 0 50px; background: linear-gradient(180deg, var(--c-primary-l2), var(--c-bg)); }
.page-hero .breadcrumb { font-size: 14px; color: var(--c-muted); margin-bottom: 14px; }
.page-hero .breadcrumb a { color: var(--c-muted); }
.page-hero .breadcrumb a:hover { color: var(--c-primary-d); }
.page-hero h1 { font-size: 42px; margin-bottom: 14px; }
.page-hero p { font-size: 17px; color: var(--c-ink-2); max-width: 760px; }

/* 信任数据 */
.trust-row { display: flex; flex-wrap: wrap; gap: 26px; }
.trust-item { display: flex; flex-direction: column; }
.trust-item .num { font-size: 28px; font-weight: 800; color: var(--c-primary-d); line-height: 1.2; }
.trust-item .lbl { font-size: 13px; color: var(--c-muted); }
.trust-sep { width: 1px; background: var(--c-line); }

/* 手机预览 */
.phone-wrap { position: relative; display: flex; justify-content: center; }
.phone {
  position: relative; width: 300px; background: #1d1b26;
  border-radius: 38px; padding: 12px; box-shadow: var(--shadow-l);
}
.phone::after {
  content: ""; position: absolute; top: 12px; left: 50%; transform: translateX(-50%);
  width: 108px; height: 22px; background: #1d1b26; border-radius: 0 0 14px 14px; z-index: 3;
}
.phone img { width: 100%; border-radius: 28px; }
.phone-float {
  position: absolute; background: #fff; border-radius: 16px; padding: 11px 16px;
  box-shadow: var(--shadow-m); display: flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 700; color: var(--c-ink);
}
.phone-float .ic {
  width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  background: var(--c-primary-l); color: var(--c-primary-d); font-size: 15px;
}
.phone-float small { display: block; font-weight: 500; color: var(--c-muted); font-size: 11px; }
.pf-a { top: 60px; left: -8px; animation: floaty 5s ease-in-out infinite; }
.pf-b { bottom: 96px; right: -14px; animation: floaty 6s ease-in-out infinite reverse; }
.pf-c { bottom: 20px; left: 12px; animation: floaty 5.5s ease-in-out infinite; }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-11px); } }

/* ----------  卖点网格  ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--c-card); border: 1px solid var(--c-line); border-radius: var(--radius-m);
  padding: 28px; box-shadow: var(--shadow-s); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-m); border-color: #ffd9cc; }
.ic-box {
  width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center;
  margin-bottom: 16px; color: #fff;
}
.ic-box svg { width: 27px; height: 27px; }
.ic-coral { background: linear-gradient(135deg, #ff9a6b, var(--c-primary-d)); }
.ic-mint { background: linear-gradient(135deg, #6fe0d6, var(--c-accent-d)); }
.ic-violet { background: linear-gradient(135deg, #a99bf5, var(--c-violet)); }
.ic-gold { background: linear-gradient(135deg, #ffcb6b, #f5a623); }
.ic-blue { background: linear-gradient(135deg, #7cb3ff, #4a7ce0); }
.ic-rose { background: linear-gradient(135deg, #ff9bb8, #e8557f); }
.card h3 { font-size: 19px; margin-bottom: 9px; }
.card p { color: var(--c-muted); font-size: 15px; }

/* ----------  截图预览  ---------- */
.shots { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.shots--three { grid-template-columns: repeat(3, 1fr); }
.shot {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-m);
  padding: 14px; box-shadow: var(--shadow-s); text-align: center; transition: transform .25s ease, box-shadow .25s ease;
}
.shot:hover { transform: translateY(-6px); box-shadow: var(--shadow-m); }
.shot img { border-radius: 12px; border: 1px solid var(--c-line); }
.shot h4 { font-size: 16px; margin-top: 13px; }
.shot p { font-size: 13px; color: var(--c-muted); margin-top: 3px; }

/* ----------  数据 / 评价  ---------- */
.stat-band {
  background: linear-gradient(115deg, #ff7f6b, var(--c-primary-d) 60%, #d94a86);
  border-radius: var(--radius-l); padding: 46px 40px; color: #fff;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center;
  box-shadow: var(--shadow-l);
}
.stat-band .n { font-size: 38px; font-weight: 800; }
.stat-band .t { font-size: 14px; opacity: .92; }
.stat-band .sub { font-size: 12px; opacity: .8; margin-top: 4px; }

.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.review {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-m);
  padding: 26px; box-shadow: var(--shadow-s); position: relative;
}
.review .quote { font-size: 40px; color: var(--c-primary-l); line-height: .6; font-weight: 800; }
.review p { font-size: 15px; color: var(--c-ink-2); margin: 12px 0 18px; }
.review .who { display: flex; align-items: center; gap: 11px; }
.review .av {
  width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center;
  color: #fff; font-weight: 700; background: linear-gradient(135deg, #ff9a6b, var(--c-primary-d));
}
.review .who b { font-size: 14px; display: block; }
.review .who em { font-style: normal; font-size: 12px; color: var(--c-muted); }
.stars { color: var(--c-gold); font-size: 14px; letter-spacing: 2px; }

/* ----------  深度内容入口  ---------- */
.deep-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.deep-card {
  display: block; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-m);
  padding: 26px 24px; box-shadow: var(--shadow-s); transition: all .25s ease; position: relative; overflow: hidden;
}
.deep-card::after {
  content: "›"; position: absolute; right: 22px; bottom: 18px; font-size: 30px;
  color: var(--c-primary-l); font-weight: 800; transition: .25s;
}
.deep-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-m); border-color: #ffd9cc; }
.deep-card:hover::after { right: 16px; color: var(--c-primary); }
.deep-card .ic-box { margin-bottom: 14px; }
.deep-card h3 { font-size: 18px; margin-bottom: 8px; color: var(--c-ink); }
.deep-card p { font-size: 14px; color: var(--c-muted); margin-bottom: 12px; }
.deep-card .tagline { font-size: 12px; font-weight: 700; color: var(--c-primary-d); }

/* ----------  FAQ  ---------- */
.faq { max-width: 880px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-m);
  margin-bottom: 14px; overflow: hidden; box-shadow: var(--shadow-s);
}
.faq-q {
  width: 100%; text-align: left; display: flex; align-items: center; gap: 14px;
  padding: 20px 24px; font-size: 16.5px; font-weight: 700; color: var(--c-ink);
}
.faq-q .qm {
  width: 26px; height: 26px; border-radius: 8px; background: var(--c-primary-l); color: var(--c-primary-d);
  display: grid; place-items: center; font-size: 13px; flex-shrink: 0;
}
.faq-q .arrow { margin-left: auto; transition: transform .3s; color: var(--c-muted); flex-shrink: 0; }
.faq-item.open .faq-q .arrow { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-a .inner { padding: 0 24px 22px 64px; color: var(--c-muted); font-size: 15px; }
.faq-item.open { border-color: #ffd9cc; }
.faq-item.open .faq-a { max-height: 460px; }

/* ----------  下载 CTA  ---------- */
.dl-band {
  position: relative; overflow: hidden; border-radius: var(--radius-l);
  background: linear-gradient(120deg, #2b2540, #45325a 55%, #7a3f63);
  color: #fff; padding: 52px 46px; display: grid; grid-template-columns: 1.2fr .8fr;
  gap: 30px; align-items: center; box-shadow: var(--shadow-l);
}
.dl-band::before {
  content: ""; position: absolute; width: 380px; height: 380px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 138, 101, .5), transparent 65%); top: -140px; right: -80px;
}
.dl-band h2 { color: #fff; font-size: 32px; margin-bottom: 12px; }
.dl-band p { color: #e8dcf0; font-size: 15.5px; margin-bottom: 8px; }
.dl-band .dl-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 22px; position: relative; z-index: 1; }
.btn-light { background: #fff; color: var(--c-primary-d); box-shadow: 0 10px 24px rgba(0, 0, 0, .22); }
.btn-light:hover { color: var(--c-primary-d); transform: translateY(-3px); color: var(--c-primary-d); }
.btn-outline-light { border: 1.5px solid rgba(255, 255, 255, .5); color: #fff; }
.btn-outline-light:hover { background: rgba(255, 255, 255, .12); color: #fff; transform: translateY(-3px); }
.dl-qr { position: relative; z-index: 1; text-align: center; }
.dl-qr .qr-box { background: #fff; border-radius: 20px; padding: 16px; width: 168px; margin: 0 auto; box-shadow: var(--shadow-m); }
.dl-qr .qr-box img { border-radius: 10px; }
.dl-qr small { display: block; margin-top: 12px; color: #e8dcf0; font-size: 13px; }

/* ----------  正文内容（内页）  ---------- */
.article { max-width: 900px; margin: 0 auto; }
.article h2 { font-size: 27px; margin: 44px 0 16px; padding-left: 16px; border-left: 5px solid var(--c-primary); }
.article h3 { font-size: 20px; margin: 28px 0 12px; color: var(--c-primary-d); }
.article p { margin-bottom: 16px; color: var(--c-ink-2); font-size: 16px; }
.article ul, .article ol { margin: 0 0 20px 4px; }
.article ul li, .article ol li { position: relative; padding-left: 26px; margin-bottom: 11px; color: var(--c-ink-2); }
.article ul li::before {
  content: ""; position: absolute; left: 4px; top: 12px; width: 8px; height: 8px;
  border-radius: 50%; background: var(--c-accent);
}
.article ol { counter-reset: li; }
.article ol li { counter-increment: li; padding-left: 40px; }
.article ol li::before {
  content: counter(li); position: absolute; left: 0; top: 1px;
  width: 26px; height: 26px; border-radius: 9px; background: var(--c-primary-l);
  color: var(--c-primary-d); font-weight: 800; font-size: 13px; display: grid; place-items: center;
}
.article strong { color: var(--c-ink); }
.callout {
  background: var(--c-primary-l2); border: 1px solid #ffe0d6; border-left: 5px solid var(--c-primary);
  border-radius: 14px; padding: 20px 24px; margin: 24px 0;
}
.callout--mint { background: var(--c-accent-l); border-color: #cdeee9; border-left-color: var(--c-accent-d); }
.callout h4 { margin-bottom: 8px; font-size: 17px; }
.callout p:last-child { margin-bottom: 0; }
.step-list { display: grid; gap: 16px; margin: 24px 0; }
.step {
  display: flex; gap: 18px; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-m); padding: 22px 24px; box-shadow: var(--shadow-s);
}
.step .no {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, #ff9a6b, var(--c-primary-d)); color: #fff; font-weight: 800; font-size: 18px;
}
.step h4 { font-size: 17px; margin-bottom: 6px; }
.step p { margin-bottom: 0; font-size: 15px; color: var(--c-muted); }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 15px; background: #fff;
  border-radius: var(--radius-m); overflow: hidden; box-shadow: var(--shadow-s); }
.tbl th, .tbl td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--c-line); }
.tbl th { background: var(--c-primary-l2); color: var(--c-primary-d); font-weight: 700; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl td:first-child { font-weight: 600; color: var(--c-ink); }

/* 相关推荐 */
.related { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 18px; }
.related a {
  display: block; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-m);
  padding: 20px; box-shadow: var(--shadow-s); transition: all .25s ease;
}
.related a:hover { transform: translateY(-5px); box-shadow: var(--shadow-m); border-color: #ffd9cc; }
.related b { display: block; color: var(--c-ink); font-size: 16px; margin-bottom: 6px; }
.related span { font-size: 13.5px; color: var(--c-muted); }

/* 侧栏目录 */
.toc {
  position: sticky; top: 94px; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-m); padding: 22px; box-shadow: var(--shadow-s);
}
.toc h4 { font-size: 15px; margin-bottom: 12px; color: var(--c-muted); letter-spacing: .1em; }
.toc a { display: block; padding: 7px 12px; border-radius: 9px; color: var(--c-ink-2); font-size: 14.5px; }
.toc a:hover, .toc a.active { background: var(--c-primary-l2); color: var(--c-primary-d); }

.layout-side { display: grid; grid-template-columns: 1fr 250px; gap: 40px; align-items: start; }

/* ----------  页脚  ---------- */
.site-footer { background: #241f30; color: #cfc6dd; padding: 56px 0 26px; margin-top: 10px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 34px; }
.site-footer .fbrand { display: flex; align-items: center; gap: 11px; margin-bottom: 16px; }
.site-footer .fbrand img { width: 42px; height: 42px; border-radius: 12px; }
.site-footer .fbrand span { font-size: 22px; font-weight: 800; color: #fff; }
.site-footer p { font-size: 14px; color: #a79db8; }
.site-footer h5 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.site-footer .fcol a { display: block; color: #b3a9c4; font-size: 14px; padding: 5px 0; }
.site-footer .fcol a:hover { color: #ffb0a0; }
.footer-disc {
  background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 14px; padding: 16px 20px; margin-top: 34px; font-size: 13px; color: #b9afc9;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); margin-top: 22px; padding-top: 20px;
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; font-size: 13px; color: #8f86a2;
}

/* 返回顶部 */
.to-top {
  position: fixed; right: 24px; bottom: 28px; width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, #ff9a6b, var(--c-primary-d)); color: #fff;
  display: grid; place-items: center; box-shadow: var(--shadow-m); z-index: 50;
  opacity: 0; visibility: hidden; transform: translateY(12px); transition: all .3s ease;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top svg { width: 22px; height: 22px; }

/* ----------  滚动动效（渐进增强：仅在 JS 可用时隐藏，避免无脚本时内容不可见） ---------- */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* ----------  响应式  ---------- */
@media (max-width: 1040px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .phone-wrap { order: -1; }
  .grid-4, .deep-grid, .shots { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .layout-side { grid-template-columns: 1fr; }
  .toc { position: static; }
}
@media (max-width: 820px) {
  .nav-links {
    position: fixed; inset: 74px 0 auto 0; flex-direction: column; align-items: stretch;
    background: #fff; padding: 16px 20px 24px; gap: 4px; box-shadow: var(--shadow-m);
    transform: translateY(-130%); transition: transform .32s ease; border-bottom: 1px solid var(--c-line);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 13px 16px; }
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }
  .grid-3, .reviews, .related { grid-template-columns: 1fr; }
  .stat-band { grid-template-columns: repeat(2, 1fr); }
  .dl-band { grid-template-columns: 1fr; text-align: center; }
  .dl-band .dl-actions { justify-content: center; }
  .hero h1 { font-size: 38px; }
  .page-hero h1 { font-size: 31px; }
  .sec-head h2 { font-size: 27px; }
  .section { padding: 54px 0; }
  .article h2 { font-size: 23px; }
}
@media (max-width: 520px) {
  .grid-2, .grid-4, .deep-grid, .shots { grid-template-columns: 1fr; }
  .trust-row { gap: 16px; }
  .trust-item .num { font-size: 23px; }
  .hero { padding: 44px 0 60px; }
  .dl-band { padding: 40px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .phone { width: 250px; }
  .phone-float { display: none; }
}