/* ============================================================
   星途伴行官网 v2 · 深海蓝 × 鲸鱼娘 · 全新视觉
   保留全部 class/id 契约，仅升级视觉与动效
   ============================================================ */
:root {
  --bg0: #060A14;
  --bg: #0A101F;
  --bg2: #0C1426;
  --card: rgba(21, 34, 58, 0.62);
  --card-solid: #15223A;
  --card2: #1B2C4A;
  --line: rgba(125, 211, 252, 0.16);
  --primary: #1E5FD9;
  --primary2: #3D8BFF;
  --cyan: #7DD3FC;
  --cyan-deep: #38BDF8;
  --gold: #FFD98A;
  --coral: #FF6FA8;
  --text: #EDF5FF;
  --text-dim: #9DB4D0;
  --radius: 20px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --shadow-1: 0 10px 30px rgba(2, 8, 20, 0.5);
  --glow-blue: 0 8px 28px rgba(61, 139, 255, 0.35);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg0);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 45% 32% at 18% -4%, rgba(46, 98, 255, 0.16), transparent 62%),
    radial-gradient(ellipse 38% 26% at 88% 12%, rgba(61, 139, 255, 0.12), transparent 60%),
    radial-gradient(ellipse 52% 36% at 50% 104%, rgba(20, 60, 140, 0.22), transparent 62%);
  background-attachment: fixed;
}
a { color: var(--cyan); text-decoration: none; }
img { display: block; max-width: 100%; }
b { color: var(--text); }

/* 漂浮星光背景 */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 22px 34px, rgba(255,255,255,0.5), transparent 55%),
    radial-gradient(1px 1px at 128px 98px, rgba(125,211,252,0.5), transparent 55%),
    radial-gradient(1.5px 1.5px at 268px 178px, rgba(255,255,255,0.4), transparent 60%),
    radial-gradient(1px 1px at 402px 66px, rgba(125,211,252,0.45), transparent 55%),
    radial-gradient(1.5px 1.5px at 560px 210px, rgba(255,255,255,0.35), transparent 60%),
    radial-gradient(1px 1px at 690px 130px, rgba(125,211,252,0.4), transparent 55%);
  background-size: 720px 300px;
  animation: starFloat 26s linear infinite;
  opacity: .6;
}
@keyframes starFloat {
  0% { transform: translateY(0); }
  100% { transform: translateY(-240px); }
}

/* ===== 导航 ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(6, 10, 20, 0.78);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid rgba(125, 211, 252, 0.12);
  transition: box-shadow .3s;
}
.navbar.scrolled { box-shadow: 0 8px 30px rgba(0,0,0,0.35); }
.nav-inner {
  max-width: 1180px; margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; gap: 20px;
}
.brand { display: flex; align-items: center; gap: 11px; }
.brand-icon {
  width: 40px; height: 40px; border-radius: 13px;
  box-shadow: 0 0 18px rgba(61,139,255,0.5);
  border: 1px solid rgba(125,211,252,0.35);
}
.brand-name { font-size: 19px; font-weight: 800; letter-spacing: 2px;
  background: linear-gradient(90deg, #fff, var(--cyan)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand-sub { font-size: 11px; color: var(--text-dim); letter-spacing: 1px; margin-left: 8px; }
.nav-links { display: flex; gap: 20px; margin-left: auto; align-items: center; }
.nav-links a { color: var(--text-dim); font-size: 14.5px; transition: color .2s; position: relative; padding: 4px 2px; }
.nav-links a:hover { color: var(--text); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--primary2), var(--cyan));
  border-radius: 2px; transition: width .25s;
}
.nav-links a:hover::after { width: 100%; }
.btn-download {
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color: #fff; padding: 9px 20px; border-radius: 999px;
  font-size: 14px; font-weight: 600;
  box-shadow: 0 4px 18px rgba(61,139,255,0.4);
  transition: transform .2s, box-shadow .2s;
  border: 1px solid rgba(255,255,255,0.12);
}
.btn-download:hover { transform: translateY(-2px); box-shadow: 0 8px 26px rgba(61,139,255,0.55); }
.nav-toggle { display: none; background: rgba(255,255,255,0.06); border: 1px solid var(--line); color: var(--text); border-radius: 10px; padding: 7px 13px; font-size: 16px; }

/* ===== Hero ===== */
.hero { position: relative; padding: 150px 20px 96px; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 58% 48% at 72% 18%, rgba(40, 96, 220, 0.4), transparent 64%),
    radial-gradient(ellipse 44% 38% at 16% 82%, rgba(255, 111, 168, 0.12), transparent 60%),
    radial-gradient(ellipse 34% 30% at 92% 72%, rgba(56, 189, 248, 0.14), transparent 60%),
    linear-gradient(180deg, #081226 0%, #0A101F 56%, #0C1426 100%);
}
/* 浮游光球装饰 */
.hero-bg::before, .hero-bg::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(2px); opacity: .5;
}
.hero-bg::before {
  width: 240px; height: 240px; left: 6%; top: 22%;
  background: radial-gradient(circle, rgba(61,139,255,0.5), transparent 68%);
  animation: drift1 9s ease-in-out infinite;
}
.hero-bg::after {
  width: 180px; height: 180px; right: 8%; bottom: 16%;
  background: radial-gradient(circle, rgba(125,211,252,0.4), transparent 68%);
  animation: drift2 11s ease-in-out infinite;
}
@keyframes drift1 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(26px,-22px) scale(1.08); } }
@keyframes drift2 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(-20px,18px) scale(0.94); } }

.hero-grid {
  position: relative; z-index: 1;
  max-width: 1180px; margin: 0 auto;
  display: grid; grid-template-columns: 1.15fr 1fr; gap: 50px; align-items: center;
}
.hero-title {
  font-size: clamp(36px, 5.2vw, 58px); font-weight: 900; letter-spacing: 3px; line-height: 1.18;
  background: linear-gradient(120deg, #fff 20%, var(--cyan) 60%, #fff 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 40px rgba(61,139,255,0.25);
}
.hero-title .accent { color: var(--gold); -webkit-text-fill-color: var(--gold); }
.hero-slogan {
  margin-top: 16px; font-size: 17px; color: var(--gold); font-weight: 600; letter-spacing: 1px;
  display: inline-block; padding: 4px 0;
  border-bottom: 1px dashed rgba(255, 217, 138, 0.4);
}
.hero-desc { margin-top: 18px; color: var(--text-dim); font-size: 15.5px; max-width: 560px; }
.hero-desc strong { color: var(--cyan); }
.hero-cta { margin-top: 30px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; flex-direction: column; align-items: center; gap: 3px;
  background: linear-gradient(135deg, #1E5FD9, #3D8BFF 60%, #56A0FF);
  color: #fff; padding: 14px 34px; border-radius: 18px;
  box-shadow: 0 12px 34px rgba(61,139,255,0.45), inset 0 1px 0 rgba(255,255,255,0.25);
  border: 1px solid rgba(255,255,255,0.18);
  transition: transform .22s, box-shadow .22s;
  position: relative; overflow: hidden;
}
.btn-primary::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,0.35) 50%, transparent 70%);
  transform: translateX(-100%); transition: transform .5s;
}
.btn-primary:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 16px 42px rgba(61,139,255,0.6); }
.btn-primary:hover::before { transform: translateX(100%); }
.btn-primary-text { font-size: 17px; font-weight: 800; letter-spacing: 3px; }
.btn-primary-sub { font-size: 12px; opacity: .85; letter-spacing: 1px; }
.btn-ghost {
  border: 1px solid rgba(125,211,252,0.3); color: var(--cyan);
  padding: 13px 24px; border-radius: 999px; font-size: 14.5px;
  background: rgba(255,255,255,0.03);
  transition: all .25s; backdrop-filter: blur(6px);
}
.btn-ghost:hover { color: #fff; border-color: var(--cyan); background: rgba(125,211,252,0.12); }
.hero-stats { margin-top: 34px; display: flex; gap: 34px; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; gap: 2px; position: relative; padding-left: 14px; }
.stat::before { content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 3px; border-radius: 3px;
  background: linear-gradient(180deg, var(--primary2), var(--cyan)); }
.stat b { font-size: 26px; color: var(--cyan); font-weight: 800; text-shadow: 0 0 18px rgba(125,211,252,0.35); }
.stat span { font-size: 12.5px; color: var(--text-dim); letter-spacing: 1px; }
.hero-visual { display: flex; flex-direction: column; align-items: center; gap: 20px; }
.hero-pet { position: relative; width: 240px; height: 240px; }
.pet-frame {
  width: 220px; height: 220px;
  animation: bob 3s ease-in-out infinite;
  filter: drop-shadow(0 10px 30px rgba(61,139,255,0.5));
}
@keyframes bob { 0%,100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-14px) rotate(1deg); } }
.pet-bubble {
  position: absolute; top: -8px; left: 50%; transform: translateX(-50%);
  background: rgba(255,255,255,0.96); color: #0A101F; font-size: 13px; font-weight: 700;
  padding: 9px 16px; border-radius: 16px; white-space: nowrap;
  box-shadow: 0 6px 20px rgba(0,0,0,0.35);
  animation: bubbleFloat 2.6s ease-in-out infinite;
}
.pet-bubble::after {
  content: ""; position: absolute; bottom: -7px; left: 50%; transform: translateX(-50%);
  border: 7px solid transparent; border-top-color: rgba(255,255,255,0.96); border-bottom: none;
}
@keyframes bubbleFloat { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-6px); } }
.hero-img {
  width: 100%; max-width: 470px; border-radius: 22px;
  box-shadow: 0 20px 56px rgba(0,0,0,0.55), 0 0 0 1px rgba(125,211,252,0.18);
  border: 1px solid rgba(125,211,252,0.2);
  transition: transform .4s;
}
.hero-img:hover { transform: scale(1.015); }

/* ===== 通用 section ===== */
.section { padding: 92px 20px; position: relative; }
.section-alt {
  background: linear-gradient(180deg, rgba(12,20,38,0.5), rgba(10,16,31,0.9));
  border-top: 1px solid rgba(125,211,252,0.08);
  border-bottom: 1px solid rgba(125,211,252,0.08);
  backdrop-filter: blur(2px);
}
.section-head { max-width: 1180px; margin: 0 auto 48px; text-align: center; }
.section-head h2 {
  font-size: clamp(28px, 3.6vw, 38px); font-weight: 900; letter-spacing: 2px;
  position: relative; display: inline-block;
  background: linear-gradient(120deg, #fff, var(--cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-head h2::after {
  content: ""; position: absolute; left: 50%; bottom: -12px; transform: translateX(-50%);
  width: 56px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, transparent, var(--primary2), var(--cyan), transparent);
}
.section-head p { margin-top: 20px; color: var(--text-dim); font-size: 15px; letter-spacing: 1px; }

/* ===== 功能卡片 ===== */
.cards { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-1);
  transition: transform .28s, border-color .28s, box-shadow .28s;
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, transparent, var(--primary2), transparent);
  opacity: 0; transition: opacity .3s;
}
.card:hover { transform: translateY(-7px); border-color: rgba(125,211,252,0.4); box-shadow: 0 18px 44px rgba(0,0,0,0.45), 0 0 24px rgba(61,139,255,0.18); }
.card:hover::before { opacity: 1; }
.card-emoji { font-size: 36px; display: inline-block; filter: drop-shadow(0 4px 10px rgba(61,139,255,0.3)); }
.card h3 { margin-top: 14px; font-size: 18px; letter-spacing: 1px; }
.card p { margin-top: 10px; color: var(--text-dim); font-size: 14px; }

/* ===== 画廊 ===== */
.gallery { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.g-item {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); aspect-ratio: 4/5;
  box-shadow: var(--shadow-1);
}
.g-wide { grid-column: span 2; aspect-ratio: 16/9; }
.g-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.g-item:hover img { transform: scale(1.06); }
.g-item figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 30px 18px 14px; font-size: 14px; color: #fff; font-weight: 600; letter-spacing: 1px;
  background: linear-gradient(transparent, rgba(6,10,20,0.9));
  transform: translateY(4px); transition: transform .3s;
}
.g-item:hover figcaption { transform: translateY(0); }

/* ===== 桌宠 ===== */
.pet-show { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: center; }
.pet-stage {
  text-align: center;
  background: radial-gradient(circle at 50% 42%, rgba(61,139,255,0.16), transparent 62%);
  border-radius: 24px; padding: 30px 10px;
  border: 1px solid rgba(125,211,252,0.1);
}
.pet-anim { width: 300px; height: 300px; margin: 0 auto; animation: bob 2.6s ease-in-out infinite; filter: drop-shadow(0 12px 32px rgba(61,139,255,0.5)); }
.pet-shadow { width: 190px; height: 16px; margin: 6px auto 0; border-radius: 50%; background: rgba(0,0,0,0.4); filter: blur(6px); }
.pet-caption { margin-top: 18px; color: var(--cyan); font-size: 15px; font-weight: 700; min-height: 26px; letter-spacing: 1px; text-shadow: 0 0 14px rgba(125,211,252,0.4); }
.pet-features { display: flex; flex-direction: column; gap: 16px; }
.pf {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 16px 20px; backdrop-filter: blur(10px);
  transition: transform .2s, border-color .2s;
}
.pf:hover { transform: translateX(6px); border-color: rgba(125,211,252,0.35); }
.pf b { display: block; font-size: 15.5px; letter-spacing: .5px; }
.pf span { color: var(--text-dim); font-size: 13.5px; }

/* ===== 下载 ===== */
.download-box {
  max-width: 880px; margin: 0 auto;
  background: linear-gradient(150deg, rgba(21,34,58,0.85), rgba(16,26,46,0.9));
  border: 1px solid rgba(125,211,252,0.2); border-radius: 26px; padding: 38px;
  display: flex; gap: 32px; align-items: flex-start;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.08);
  backdrop-filter: blur(14px);
  position: relative; overflow: hidden;
}
.download-box::before {
  content: ""; position: absolute; top: -80px; right: -60px; width: 240px; height: 240px;
  background: radial-gradient(circle, rgba(61,139,255,0.25), transparent 68%);
  pointer-events: none;
}
.dl-icon { width: 116px; height: 116px; border-radius: 26px; box-shadow: 0 10px 32px rgba(61,139,255,0.4), 0 0 0 1px rgba(125,211,252,0.3); flex-shrink: 0; }
.dl-version { font-size: 27px; font-weight: 900; display: flex; align-items: center; gap: 12px; letter-spacing: 1px; }
.badge {
  background: rgba(56,189,248,0.16); color: var(--cyan); font-size: 12px; font-weight: 700;
  padding: 4px 12px; border-radius: 999px; border: 1px solid rgba(125,211,252,0.35);
}
.badge.warn { background: rgba(255,111,168,0.14); color: var(--coral); border-color: rgba(255,111,168,0.35); }
.dl-meta { margin-top: 10px; color: var(--text-dim); font-size: 13.5px; letter-spacing: .5px; }
.dl-changelog { margin: 18px 0 22px; padding-left: 22px; color: var(--text-dim); font-size: 14.5px; }
.dl-changelog li { margin-bottom: 7px; }
.dl-changelog li::marker { color: var(--primary2); }
.btn-primary.big { padding: 16px 44px; font-size: 17px; }
.dl-tip { margin-top: 14px; color: var(--text-dim); font-size: 12.5px; }

/* ===== 更新日志 ===== */
.log-list { max-width: 880px; margin: 0 auto; display: flex; flex-direction: column; gap: 20px; }
.log-item {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 28px; backdrop-filter: blur(10px);
  box-shadow: var(--shadow-1);
  transition: border-color .25s;
}
.log-item:hover { border-color: rgba(125,211,252,0.3); }
.log-ver { display: flex; align-items: center; gap: 16px; }
.log-ver b { font-size: 19px; letter-spacing: 1px; color: var(--cyan); }
.log-ver span { color: var(--text-dim); font-size: 13px; }
.log-lines { margin-top: 14px; padding-left: 22px; color: var(--text-dim); font-size: 14.5px; }
.log-lines li { margin-bottom: 6px; }
.log-lines li::marker { color: var(--primary2); }
.empty { color: var(--text-dim); text-align: center; }

/* ===== 统计 ===== */
.stats-grid { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.s-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; text-align: center; backdrop-filter: blur(10px);
  box-shadow: var(--shadow-1);
  transition: transform .25s;
}
.s-card:hover { transform: translateY(-4px); }
.s-card b { display: block; font-size: 38px; font-weight: 900; color: var(--cyan); text-shadow: 0 0 22px rgba(125,211,252,0.35); }
.s-card span { color: var(--text-dim); font-size: 13.5px; letter-spacing: 1px; }
.week-chart {
  max-width: 700px; margin: 48px auto 0; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 30px;
  backdrop-filter: blur(10px); box-shadow: var(--shadow-1);
}
.week-chart h3 { font-size: 16px; margin-bottom: 20px; letter-spacing: 1px; color: var(--text-dim); }
.bars { display: flex; align-items: flex-end; gap: 16px; height: 160px; }
.bar { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 8px; }
.bar i {
  display: block; width: 100%; max-width: 42px; border-radius: 9px 9px 0 0;
  background: linear-gradient(180deg, var(--cyan), var(--primary2) 60%, var(--primary));
  min-height: 4px; transition: height .6s ease;
  box-shadow: 0 0 14px rgba(56,189,248,0.25);
}
.bar span { font-size: 12px; color: var(--text-dim); }

/* ===== 关于 ===== */
.about-grid { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.about-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; backdrop-filter: blur(10px); box-shadow: var(--shadow-1);
  transition: transform .25s, border-color .25s;
}
.about-card:hover { transform: translateY(-4px); border-color: rgba(125,211,252,0.3); }
.about-card h3 { font-size: 17px; letter-spacing: .5px; }
.about-card p { margin-top: 10px; color: var(--text-dim); font-size: 14px; }
.about-card a { color: var(--cyan); border-bottom: 1px dashed rgba(125,211,252,0.4); }
.donate { max-width: 700px; margin: 52px auto 0; text-align: center; }
.donate h3 { font-size: 21px; margin-bottom: 22px; letter-spacing: 1px; }
.paycodes { display: flex; justify-content: center; gap: 32px; flex-wrap: wrap; }
.paycodes figure {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 16px 12px; backdrop-filter: blur(10px); box-shadow: var(--shadow-1);
  transition: transform .25s;
}
.paycodes figure:hover { transform: translateY(-4px); }
.paycodes img { width: 224px; height: 224px; object-fit: contain; border-radius: 14px; }
.paycodes figcaption { margin-top: 10px; color: var(--text-dim); font-size: 13px; letter-spacing: 1px; }

/* ===== 页脚 ===== */
.footer {
  border-top: 1px solid rgba(125,211,252,0.1); padding: 44px 20px;
  background: linear-gradient(180deg, var(--bg2), var(--bg0));
}
.footer-inner { max-width: 1180px; margin: 0 auto; text-align: center; }
.footer-brand { display: flex; align-items: center; justify-content: center; gap: 11px; }
.footer-brand img { width: 36px; height: 36px; border-radius: 11px; box-shadow: 0 0 14px rgba(61,139,255,0.4); }
.footer-brand b { font-size: 18px; letter-spacing: 1px; }
.footer-brand span { color: var(--text-dim); font-size: 12px; margin-left: 6px; letter-spacing: 1px; }
.footer-copy { margin-top: 14px; color: var(--text-dim); font-size: 13px; }
.footer-links { margin-top: 10px; font-size: 13px; color: var(--text-dim); }
.footer-links a { color: var(--text-dim); margin: 0 8px; transition: color .2s; }
.footer-links a:hover { color: var(--cyan); }

/* ===== 滚动显现 ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .75s ease, transform .75s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero { padding: 130px 20px 72px; }
  .cards { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr 1fr; gap: 14px; }
  .g-wide { grid-column: span 2; }
  .pet-show { grid-template-columns: 1fr; }
  .download-box { flex-direction: column; align-items: center; text-align: center; }
  .dl-changelog { text-align: left; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute; top: 62px; left: 0; right: 0;
    background: rgba(6,10,20,0.97); padding: 18px 22px; gap: 16px;
    border-bottom: 1px solid var(--line); backdrop-filter: blur(14px);
  }
  .nav-toggle { display: block; }
}
@media (max-width: 520px) {
  .gallery { grid-template-columns: 1fr; }
  .g-wide { grid-column: span 1; }
  .hero-stats { gap: 22px; }
  .stat b { font-size: 22px; }
  .section { padding: 64px 16px; }
}