/* ==========================================================================
   Evo storefront template for Dujiao-Next
   配色、字重和圆角参照 evoclub.tech：slate 灰阶 + indigo 强调色，浅色/深色双主题
   ========================================================================== */

:root {
  /* 浅色主题文字色均按 WCAG AA（4.5:1）取值 */
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-raised: #f8fafc;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: #eef2ff;
  --accent-ink: #ffffff;
  --success: #047857;
  --success-soft: #ecfdf5;
  --warning: #b45309;
  --warning-soft: #fffbeb;
  --danger: #b91c1c;
  --danger-soft: #fef2f2;
  --header-bg: rgba(255, 255, 255, 0.75);
  --header-border: rgba(255, 255, 255, 0.6);
  --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px -12px rgba(15, 23, 42, 0.12);
  --shadow-pop: 0 20px 50px -20px rgba(15, 23, 42, 0.35);
  --blob-a: rgba(165, 180, 252, 0.28);
  --blob-b: rgba(103, 232, 249, 0.18);
  --blob-c: rgba(240, 171, 252, 0.16);
  --radius: 1rem;
  --radius-lg: 1.5rem;
  --font: "Inter Variable", "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}

html.dark {
  --bg: #030712;
  --surface: #0f172a;
  --surface-raised: #111827;
  --text: #f8fafc;
  --muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.1);
  --accent: #818cf8;
  --accent-hover: #a5b4fc;
  --accent-soft: rgba(129, 140, 248, 0.12);
  --accent-ink: #0b1020;
  --success: #34d399;
  --success-soft: rgba(52, 211, 153, 0.12);
  --warning: #fbbf24;
  --warning-soft: rgba(251, 191, 36, 0.12);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.12);
  --header-bg: rgba(3, 7, 18, 0.75);
  --header-border: rgba(255, 255, 255, 0.05);
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 12px 32px -16px rgba(0, 0, 0, 0.6);
  --shadow-pop: 0 24px 60px -20px rgba(0, 0, 0, 0.8);
  --blob-a: rgba(67, 56, 202, 0.12);
  --blob-b: rgba(14, 116, 144, 0.08);
  --blob-c: rgba(134, 25, 143, 0.08);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  transition: background-color .2s, color .2s;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 10px; }
[hidden] { display: none !important; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: fixed; left: 1rem; top: .75rem; z-index: 90;
  transform: translateY(-6rem);
  padding: .6rem 1rem; border-radius: .75rem;
  background: var(--text); color: var(--bg);
  font-size: .875rem; font-weight: 600;
  transition: transform .2s;
}
.skip-link:focus { transform: translateY(0); }

/* ---------- Preloader ---------- */
.preloader {
  position: fixed; inset: 0; z-index: 100;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .25rem;
  background: var(--bg);
  transition: opacity .4s ease, visibility .4s;
}
.preloader.is-done { opacity: 0; visibility: hidden; }
.preloader-mark {
  width: 56px; height: 56px; border-radius: 18px; margin-bottom: .75rem;
  background: linear-gradient(135deg, #6366f1, #22d3ee 55%, #e879f9);
  display: grid; place-items: center;
  animation: pulse 1.4s ease-in-out infinite;
}
.preloader-mark span { width: 22px; height: 22px; border-radius: 8px; background: var(--bg); }
.preloader-title { margin: 0; font-weight: 800; letter-spacing: -.02em; }
.preloader-sub { margin: 0; font-size: .8rem; color: var(--muted); }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(.9); } }

/* ---------- Ambient ---------- */
.ambient { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.blob { position: absolute; border-radius: 999px; filter: blur(64px); }
.blob-a { width: 28rem; height: 28rem; left: -8rem; top: -8rem; background: var(--blob-a); }
.blob-b { width: 24rem; height: 24rem; right: -6rem; top: 30%; background: var(--blob-b); }
.blob-c { width: 26rem; height: 26rem; left: 30%; bottom: -12rem; background: var(--blob-c); }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: 80rem; margin: 0 auto; padding: 0 1rem; }
@media (min-width: 640px) { .container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .container { padding: 0 2rem; } }
.container-narrow { max-width: 46rem; }
.container-auth { max-width: 28rem; }

main { flex: 1; outline: none; padding-bottom: 4rem; }
.page { padding-top: 2rem; animation: fadeUp .35s ease both; }
/* 预渲染的首屏内容直接显示，不做淡入（淡入从透明开始，浏览器不会把它算作首屏内容） */
main[data-ssr] .page { animation: none; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid var(--header-border);
  background: var(--header-bg);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  box-shadow: 0 1px 0 rgba(15, 23, 42, .04);
}
.header-inner { display: flex; align-items: center; gap: .75rem; min-height: 4rem; }
.brand { display: flex; align-items: center; gap: .65rem; min-width: 0; border-radius: 1rem; }
.brand-logo {
  width: 2.25rem; height: 2.25rem; border-radius: .75rem; object-fit: contain;
  background: var(--surface); border: 1px solid var(--border);
}
.brand-mark {
  width: 2.25rem; height: 2.25rem; border-radius: .75rem; display: grid; place-items: center;
  background: linear-gradient(135deg, #6366f1, #22d3ee 55%, #e879f9);
  color: #fff; font-weight: 900;
}
.brand-name { font-weight: 800; letter-spacing: -.02em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav { display: none; align-items: center; gap: .25rem; margin-left: auto; }
@media (min-width: 1024px) { .nav { display: flex; } }
.nav-link {
  position: relative; display: inline-flex; align-items: center; gap: .4rem;
  padding: .5rem .8rem; border-radius: .75rem;
  font-size: .875rem; font-weight: 600; color: var(--muted);
  transition: color .15s, background-color .15s;
}
.nav-link:hover { color: var(--text); background: var(--accent-soft); }
.nav-link.is-active { color: var(--text); }
.nav-link.is-active::after {
  content: ""; position: absolute; left: .8rem; right: .8rem; bottom: .2rem; height: 2px; border-radius: 2px;
  background: var(--accent);
}
.header-actions { display: flex; align-items: center; gap: .35rem; margin-left: auto; }
@media (min-width: 1024px) { .header-actions { margin-left: .5rem; } }
.icon-btn {
  position: relative; width: 2.5rem; height: 2.5rem; display: inline-grid; place-items: center;
  border-radius: .85rem; border: 1px solid var(--border); background: var(--surface);
  color: var(--text); transition: border-color .15s, transform .15s;
}
.icon-btn:hover { border-color: var(--accent); }
.icon-btn:active { transform: scale(.96); }
.icon-btn svg { width: 1.15rem; height: 1.15rem; }
.badge-dot {
  position: absolute; top: -.35rem; right: -.35rem; min-width: 1.15rem; height: 1.15rem; padding: 0 .3rem;
  border-radius: 999px; background: var(--accent); color: var(--accent-ink);
  font-size: .7rem; font-weight: 800; line-height: 1.15rem; text-align: center;
}
.menu-btn { display: inline-grid; }
.hide-sm { display: none; }
@media (min-width: 640px) { .hide-sm { display: inline-flex; } }
@media (min-width: 1024px) { .menu-btn { display: none; } }
.lang-select {
  height: 2.5rem; padding: 0 .6rem; border-radius: .85rem; border: 1px solid var(--border);
  background: var(--surface); font-size: .8rem; font-weight: 600;
}

/* ---------- Drawer ---------- */
.drawer-backdrop {
  position: fixed; inset: 0; z-index: 60; background: rgba(2, 6, 23, .55); backdrop-filter: blur(2px);
}
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 70;
  width: min(22rem, 88vw); display: flex; flex-direction: column;
  background: var(--surface); border-left: 1px solid var(--border); box-shadow: var(--shadow-pop);
  transform: translateX(105%); transition: transform .28s cubic-bezier(.2, .8, .2, 1);
}
.drawer.is-open { transform: translateX(0); }
.drawer-head {
  display: flex; align-items: center; justify-content: space-between; gap: .75rem;
  min-height: 5rem; padding: 0 1.25rem; border-bottom: 1px solid var(--border);
}
.drawer-title { font-weight: 800; letter-spacing: -.02em; }
.drawer-sub { font-size: .75rem; color: var(--muted); }
.drawer-body { flex: 1; overflow-y: auto; padding: 1rem; display: grid; gap: .25rem; align-content: start; }
.drawer-link {
  display: flex; align-items: center; gap: .85rem; padding: .75rem .85rem; border-radius: 1rem;
  transition: background-color .15s;
}
.drawer-link:hover, .drawer-link.is-active { background: var(--accent-soft); }
.drawer-link.is-active .drawer-link-icon { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.drawer-link-icon {
  width: 2.5rem; height: 2.5rem; flex-shrink: 0; display: grid; place-items: center;
  border-radius: .85rem; border: 1px solid var(--border); background: var(--surface-raised);
}
.drawer-link-icon svg { width: 1.1rem; height: 1.1rem; }
.drawer-link strong { display: block; font-size: .925rem; }
.drawer-link small { display: block; font-size: .75rem; color: var(--muted); }
.drawer-foot { padding: 1rem; border-top: 1px solid var(--border); display: grid; gap: .6rem; }
.theme-switch {
  display: flex; align-items: center; justify-content: space-between; gap: .75rem;
  width: 100%; padding: .75rem .85rem; border-radius: 1rem; border: 1px solid var(--border); background: var(--surface-raised);
  text-align: left;
}
.theme-switch small { display: block; color: var(--muted); font-size: .75rem; }

/* ---------- Typography ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent);
}
.eyebrow::before { content: ""; width: 1.25rem; height: 2px; border-radius: 2px; background: currentColor; opacity: .6; }
.h1, .h2, .h3 { margin: 0; letter-spacing: -.03em; font-weight: 800; line-height: 1.15; }
.h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); }
.h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
.h3 { font-size: 1.1rem; letter-spacing: -.02em; }
.lead { margin: 0; font-size: 1.05rem; color: var(--muted); max-width: 38rem; }
.muted { color: var(--muted); }
.small { font-size: .825rem; }
.mono { font-family: var(--mono); }
.section { padding-top: 4.5rem; }
.section-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 1.75rem; }
.section-head > div { display: grid; gap: .6rem; }
.text-gradient {
  background: linear-gradient(120deg, var(--accent), #22d3ee 50%, #e879f9);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 2.75rem; padding: 0 1.25rem; border-radius: .9rem; border: 1px solid transparent;
  font-size: .9rem; font-weight: 700; white-space: nowrap;
  transition: background-color .15s, border-color .15s, color .15s, transform .15s, box-shadow .15s;
}
.btn:active { transform: translateY(1px); }
.btn[disabled], .btn.is-loading { opacity: .55; pointer-events: none; }
.btn svg { width: 1rem; height: 1rem; }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 10px 24px -12px var(--accent); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn-secondary:hover { border-color: var(--accent); }
.btn-ghost { background: transparent; color: var(--muted); }
.btn-ghost:hover { color: var(--text); background: var(--accent-soft); }
.btn-sm { min-height: 2.25rem; padding: 0 .9rem; font-size: .825rem; border-radius: .75rem; }
.btn-lg { min-height: 3.25rem; padding: 0 1.6rem; font-size: 1rem; border-radius: 1rem; }
.btn-block { width: 100%; }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(3px); }
.btn:hover .arrow-down { transform: translateY(3px); }
.btn-row { display: flex; flex-wrap: wrap; gap: .75rem; }
.spinner {
  width: 1rem; height: 1rem; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Cards & pills ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}
.card-pad { padding: 1.5rem; }
@media (min-width: 640px) { .card-pad { padding: 2rem; } }
.pill {
  display: inline-flex; align-items: center; gap: .4rem; padding: .35rem .75rem; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface);
  font-size: .8rem; font-weight: 600; color: var(--text);
}
.pill-dot { width: .45rem; height: .45rem; border-radius: 50%; background: var(--accent); }
.pills { display: flex; flex-wrap: wrap; gap: .5rem; }
.status {
  display: inline-flex; align-items: center; gap: .35rem; padding: .2rem .6rem; border-radius: 999px;
  font-size: .72rem; font-weight: 700;
  background: var(--accent-soft); color: var(--accent);
}
.status::before { content: ""; width: .4rem; height: .4rem; border-radius: 50%; background: currentColor; }
.status-success { background: var(--success-soft); color: var(--success); }
.status-warning { background: var(--warning-soft); color: var(--warning); }
.status-danger { background: var(--danger-soft); color: var(--danger); }
.status-muted { background: var(--surface-raised); color: var(--muted); }
.checks { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; }
.checks li { display: inline-flex; align-items: center; gap: .45rem; font-size: .9rem; font-weight: 600; }
.checks li::before {
  content: "✓"; width: 1.25rem; height: 1.25rem; display: grid; place-items: center; border-radius: 50%;
  background: var(--success-soft); color: var(--success); font-size: .7rem; font-weight: 900;
}

/* ---------- Hero carousel ---------- */
.hero { padding-top: 2rem; }
.hero-title { margin-bottom: 1.25rem; }
.carousel { position: relative; }
.carousel-viewport { overflow: hidden; border-radius: 2rem; }
.carousel-track { display: flex; transition: transform .6s cubic-bezier(.2, .8, .2, 1); }
.slide { flex: 0 0 100%; min-width: 0; }
.slide-inner {
  position: relative; overflow: hidden; display: grid; gap: 2rem; padding: 2rem 1.5rem;
  border: 1px solid var(--border); border-radius: 2rem; background: var(--surface);
  min-height: 26rem;
}
@media (min-width: 640px) { .slide-inner { padding: 3rem; } }
@media (min-width: 1024px) { .slide-inner { grid-template-columns: 1.15fr 1fr; align-items: center; padding: 3.5rem; } }
.slide-inner::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(40rem 20rem at 100% 0%, var(--accent-soft), transparent 60%),
    radial-gradient(30rem 18rem at 0% 100%, var(--blob-b), transparent 60%);
}
.slide-inner > * { position: relative; }
.slide-copy { display: grid; gap: 1.1rem; align-content: center; }
.slide-label { font-size: .85rem; font-weight: 700; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.feature-card {
  padding: 1.1rem; border-radius: 1.25rem; border: 1px solid var(--border); background: var(--surface-raised);
  display: grid; gap: .5rem; align-content: start;
}
.feature-card .ico {
  width: 2.25rem; height: 2.25rem; display: grid; place-items: center; border-radius: .75rem;
  background: var(--accent-soft); color: var(--accent);
}
.feature-card .ico svg { width: 1.1rem; height: 1.1rem; }
.feature-card strong { font-size: .925rem; }
.feature-card p { margin: 0; font-size: .8rem; color: var(--muted); }
.feature-panel { display: grid; gap: 1rem; }
.feature-panel-head { display: grid; gap: .35rem; }
.showcase {
  position: relative; aspect-ratio: 4 / 3; border-radius: 1.5rem; overflow: hidden;
  border: 1px solid var(--border); background: var(--surface-raised);
  display: grid; place-items: center;
}
.showcase img { width: 100%; height: 100%; object-fit: cover; }
.showcase-tag {
  position: absolute; left: 1rem; bottom: 1rem; right: 1rem;
  display: flex; align-items: center; justify-content: space-between; gap: .75rem;
  padding: .75rem 1rem; border-radius: 1rem;
  background: var(--header-bg); border: 1px solid var(--border);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  font-weight: 700; font-size: .875rem;
}
.carousel-controls { display: flex; justify-content: center; margin-top: 1rem; }
/* 圆点间距保证每个点周围有 24px 的可点击区域 */
.carousel-dots { display: flex; gap: 1rem; }
.carousel-dot {
  width: .55rem; height: .55rem; padding: 0; cursor: pointer; border-radius: 999px; border: 0; background: var(--border);
  transition: width .3s, background-color .3s;
}
.carousel-dot[aria-current="true"] { width: 1.75rem; background: var(--accent); }

/* ---------- Notice ---------- */
.notice {
  display: flex; gap: .85rem; align-items: flex-start; padding: 1rem 1.25rem; margin-top: 1.25rem;
  border-radius: 1.25rem; border: 1px solid var(--border); background: var(--surface);
  font-size: .875rem;
}
.notice-ico {
  flex-shrink: 0; width: 2rem; height: 2rem; display: grid; place-items: center; border-radius: .7rem;
  background: var(--warning-soft); color: var(--warning);
}
.notice-ico svg { width: 1rem; height: 1rem; }
.notice-body p { margin: 0 0 .25rem; }
.notice-body a { color: var(--accent); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Steps ---------- */
.steps-wrap { display: grid; gap: 1.5rem; }
@media (min-width: 1024px) { .steps-wrap { grid-template-columns: 1fr 2fr; align-items: center; } }
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: .75rem; counter-reset: step; }
@media (min-width: 768px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step {
  position: relative; padding: 1.4rem; border-radius: 1.5rem; border: 1px solid var(--border); background: var(--surface);
  display: grid; gap: .5rem; align-content: start;
}
.step-num { font-family: var(--mono); font-size: .8rem; font-weight: 800; color: var(--accent); }
.step strong { font-size: 1rem; letter-spacing: -.01em; }
.step p { margin: 0; font-size: .85rem; color: var(--muted); }

/* ---------- Catalog ---------- */
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.5rem; }
.chip {
  display: inline-flex; align-items: center; gap: .45rem; padding: .45rem .9rem; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface); font-size: .85rem; font-weight: 600; color: var(--muted);
  transition: all .15s;
}
.chip:hover { color: var(--text); border-color: var(--accent); }
.chip[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }
.chip-count { font-size: .72rem; opacity: .7; }
.count-label { font-size: .85rem; color: var(--muted); font-weight: 600; }
.product-grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fill, minmax(17.5rem, 1fr)); }
.product-card {
  display: flex; flex-direction: column; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border); border-radius: 1.5rem;
  box-shadow: var(--shadow-card); transition: transform .2s, border-color .2s, box-shadow .2s;
}
.product-card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); box-shadow: var(--shadow-pop); }
.product-media { position: relative; aspect-ratio: 16 / 10; background: var(--surface-raised); overflow: hidden; }
.product-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.product-card:hover .product-media img { transform: scale(1.04); }
.product-media .status { position: absolute; top: .85rem; left: .85rem; backdrop-filter: blur(8px); }
.product-media-fallback {
  width: 100%; height: 100%; display: grid; place-items: center; font-size: 2.5rem; font-weight: 900; color: var(--accent);
  background: linear-gradient(135deg, var(--accent-soft), transparent);
}
.product-body { flex: 1; display: flex; flex-direction: column; gap: .85rem; padding: 1.25rem; }
.product-title { display: flex; align-items: flex-start; justify-content: space-between; gap: .75rem; }
.product-title a:hover { color: var(--accent); }
.product-sub { font-size: .8rem; color: var(--muted); }
.segmented {
  display: flex; padding: .25rem; gap: .25rem; border-radius: .9rem; background: var(--surface-raised); border: 1px solid var(--border);
}
.segmented button {
  flex: 1; min-width: 0; padding: .45rem .5rem; border: 0; border-radius: .7rem; background: transparent;
  font-size: .8rem; font-weight: 700; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: background-color .15s, color .15s, box-shadow .15s;
}
.segmented button:hover { color: var(--text); }
.segmented button[aria-checked="true"] { background: var(--surface); color: var(--text); box-shadow: 0 1px 3px rgba(15, 23, 42, .12); }
.segmented button:disabled { opacity: .4; text-decoration: line-through; cursor: not-allowed; }
.price-row { display: flex; align-items: baseline; justify-content: space-between; gap: .5rem; }
.price { font-size: 1.5rem; font-weight: 800; letter-spacing: -.03em; }
.price small { font-size: .8rem; font-weight: 600; color: var(--muted); letter-spacing: 0; }
.price-was { font-size: .85rem; color: var(--muted); text-decoration: line-through; margin-left: .35rem; }
.stock { font-size: .78rem; font-weight: 600; color: var(--muted); }
.product-actions { display: grid; grid-template-columns: auto 1fr; gap: .5rem; margin-top: auto; }
.product-actions .btn-buy { grid-column: 1 / -1; }
.stepper {
  display: inline-flex; align-items: center; height: 2.75rem; border-radius: .9rem; border: 1px solid var(--border); background: var(--surface);
}
.stepper button {
  width: 2.4rem; height: 100%; border: 0; background: transparent; font-size: 1.1rem; font-weight: 700; color: var(--muted);
}
.stepper button:hover { color: var(--text); }
.stepper input {
  width: 2.75rem; height: 100%; border: 0; background: transparent; text-align: center; font-weight: 700;
  -moz-appearance: textfield; appearance: textfield;
}
.stepper input::-webkit-outer-spin-button, .stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.tip {
  position: relative; display: inline-grid; place-items: center; width: 1.4rem; height: 1.4rem; flex-shrink: 0;
  border-radius: 50%; border: 1px solid var(--border); font-size: .72rem; font-weight: 800; color: var(--muted); cursor: help;
}
.tip-bubble {
  position: absolute; right: 0; top: calc(100% + .5rem); z-index: 5; width: 16rem; padding: .75rem .9rem;
  border-radius: .9rem; background: var(--text); color: var(--bg); font-size: .78rem; font-weight: 500; line-height: 1.5;
  box-shadow: var(--shadow-pop); opacity: 0; visibility: hidden; transform: translateY(-4px); transition: all .15s;
}
.tip:hover .tip-bubble, .tip:focus .tip-bubble, .tip:focus-within .tip-bubble { opacity: 1; visibility: visible; transform: none; }

/* ---------- Product detail ---------- */
.back-link { display: inline-flex; align-items: center; gap: .4rem; font-size: .875rem; font-weight: 600; color: var(--muted); margin-bottom: 1.25rem; }
.back-link:hover { color: var(--text); }
.detail { display: grid; gap: 2rem; }
@media (min-width: 1024px) { .detail { grid-template-columns: 1.1fr 1fr; align-items: start; } }
.gallery { display: grid; gap: .75rem; }
.gallery-main { aspect-ratio: 16 / 10; border-radius: 1.5rem; overflow: hidden; border: 1px solid var(--border); background: var(--surface-raised); }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: .5rem; overflow-x: auto; }
.gallery-thumbs button { flex: 0 0 4.5rem; aspect-ratio: 1; padding: 0; border-radius: .9rem; overflow: hidden; border: 2px solid transparent; background: var(--surface-raised); }
.gallery-thumbs button[aria-current="true"] { border-color: var(--accent); }
.gallery-thumbs img { width: 100%; height: 100%; object-fit: cover; }
.buy-box { display: grid; gap: 1.1rem; position: sticky; top: 5.5rem; }
.field-label { font-size: .8rem; font-weight: 700; color: var(--muted); margin-bottom: .45rem; display: block; }
.prose { color: var(--text); font-size: .95rem; }
.prose p { margin: 0 0 .85rem; }
.prose ul, .prose ol { padding-left: 1.25rem; margin: 0 0 .85rem; }
.prose li { margin-bottom: .3rem; }
.prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.prose img { border-radius: 1rem; margin: 1rem 0; }
.prose h1, .prose h2, .prose h3 { letter-spacing: -.02em; margin: 1.5rem 0 .75rem; }

/* ---------- Forms ---------- */
.form { display: grid; gap: 1rem; }
.field { display: grid; gap: .4rem; }
.field label { font-size: .825rem; font-weight: 700; }
.field .hint { font-size: .75rem; color: var(--muted); }
.input-wrap { position: relative; display: flex; align-items: center; }
.input-prefix { position: absolute; left: .9rem; font-weight: 700; color: var(--muted); pointer-events: none; }
.input-wrap .input { padding-left: 2rem; }
.input, .select {
  width: 100%; height: 2.9rem; padding: 0 .95rem; border-radius: .9rem; border: 1px solid var(--border); background: var(--surface);
  transition: border-color .15s, box-shadow .15s;
}
.input:focus, .select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.input-group { display: flex; gap: .5rem; }
.input-group .input { flex: 1; }
.check { display: flex; align-items: flex-start; gap: .55rem; font-size: .85rem; color: var(--muted); }
.check input { margin-top: .25rem; accent-color: var(--accent); }
.check a { color: var(--accent); font-weight: 600; }
.alert { padding: .8rem 1rem; border-radius: .9rem; font-size: .85rem; font-weight: 600; }
.alert-error { background: var(--danger-soft); color: var(--danger); }
.alert-info { background: var(--accent-soft); color: var(--accent); }
.alert-success { background: var(--success-soft); color: var(--success); }

.auth-card { padding: 2rem 1.5rem; display: grid; gap: 1.5rem; }
@media (min-width: 640px) { .auth-card { padding: 2.5rem; } }
.auth-head { display: grid; justify-items: center; gap: .75rem; text-align: center; }
.avatar {
  width: 3.5rem; height: 3.5rem; border-radius: 1.25rem; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), #22d3ee); color: #fff; font-size: 1.35rem; font-weight: 900;
  box-shadow: 0 16px 32px -16px var(--accent);
}
.auth-foot { text-align: center; font-size: .875rem; color: var(--muted); }
.auth-foot a { color: var(--accent); font-weight: 700; }
.radio-cards { display: grid; gap: .5rem; }
.radio-card {
  display: flex; align-items: center; gap: .75rem; padding: .85rem 1rem; border-radius: 1rem; border: 1px solid var(--border);
  background: var(--surface); cursor: pointer; transition: border-color .15s, background-color .15s;
}
.radio-card:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.radio-card input { accent-color: var(--accent); }
.radio-card strong { font-size: .9rem; }
.radio-card small { display: block; color: var(--muted); font-size: .75rem; }
.tabs { display: inline-flex; padding: .25rem; gap: .25rem; border-radius: .9rem; background: var(--surface-raised); border: 1px solid var(--border); }
.tabs button { padding: .45rem 1rem; border: 0; border-radius: .7rem; background: transparent; font-size: .85rem; font-weight: 700; color: var(--muted); }
.tabs button[aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: 0 1px 3px rgba(15, 23, 42, .12); }

/* ---------- Cart / checkout ---------- */
.page-head { display: grid; gap: .6rem; margin-bottom: 1.75rem; }
.split { display: grid; gap: 1.5rem; }
@media (min-width: 1024px) { .split { grid-template-columns: 1fr 24rem; align-items: start; } }
.line-items { display: grid; gap: .75rem; }
.line-item {
  display: grid; grid-template-columns: 4.5rem 1fr; gap: 1rem; padding: 1rem; border-radius: 1.25rem; border: 1px solid var(--border);
  background: var(--surface);
}
@media (min-width: 640px) { .line-item { grid-template-columns: 5.5rem 1fr auto; align-items: center; } }
.line-thumb { aspect-ratio: 1; border-radius: 1rem; overflow: hidden; background: var(--surface-raised); }
.line-thumb img { width: 100%; height: 100%; object-fit: cover; }
.line-info { display: grid; gap: .25rem; min-width: 0; }
.line-info strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.line-side { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: .75rem; }
@media (min-width: 640px) { .line-side { grid-column: auto; flex-direction: column; align-items: flex-end; } }
.line-total { font-weight: 800; font-size: 1.05rem; }
.summary { position: sticky; top: 5.5rem; display: grid; gap: 1rem; }
.summary-row { display: flex; justify-content: space-between; gap: 1rem; font-size: .9rem; }
.summary-row span:first-child { color: var(--muted); }
.summary-total { padding-top: 1rem; border-top: 1px dashed var(--border); font-size: 1.1rem; font-weight: 800; }
.summary-total span:first-child { color: var(--text); }
.discount { color: var(--success); }

.empty {
  display: grid; justify-items: center; gap: 1rem; padding: 4rem 1.5rem; text-align: center;
  border: 1px dashed var(--border); border-radius: 2rem; background: var(--surface);
}
.empty-ico {
  width: 4rem; height: 4rem; display: grid; place-items: center; border-radius: 1.4rem; background: var(--accent-soft); color: var(--accent);
}
.empty-ico svg { width: 1.75rem; height: 1.75rem; }
.empty p { margin: 0; color: var(--muted); max-width: 26rem; }

/* ---------- Orders ---------- */
.order-list { display: grid; gap: .75rem; }
.order-row {
  display: grid; gap: .5rem; padding: 1.1rem 1.25rem; border-radius: 1.25rem; border: 1px solid var(--border); background: var(--surface);
  transition: border-color .15s;
}
@media (min-width: 640px) { .order-row { grid-template-columns: 1fr auto auto; align-items: center; gap: 1.25rem; } }
.order-row:hover { border-color: var(--accent); }
.order-no { font-family: var(--mono); font-weight: 700; font-size: .9rem; }
.kv { display: grid; gap: .6rem; margin: 0; }
.kv div { display: flex; justify-content: space-between; gap: 1rem; font-size: .875rem; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 600; text-align: right; word-break: break-all; }
.delivery {
  position: relative; margin: 0; padding: 1rem; padding-right: 5.5rem; border-radius: 1rem;
  background: var(--surface-raised); border: 1px solid var(--border);
  font-family: var(--mono); font-size: .85rem; white-space: pre-wrap; word-break: break-all; max-height: 22rem; overflow: auto;
}
.delivery-copy { position: absolute; top: .6rem; right: .6rem; }
.pay-amount { font-size: clamp(2.25rem, 6vw, 3rem); font-weight: 900; letter-spacing: -.04em; }
.countdown { font-family: var(--mono); font-weight: 700; }
.stack { display: grid; gap: 1.25rem; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); background: var(--surface); }
.footer-inner { display: grid; gap: 1.5rem; padding-top: 2.5rem; padding-bottom: 2.5rem; }
@media (min-width: 768px) { .footer-inner { grid-template-columns: 1fr auto; align-items: center; } }
.footer-links { display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; font-size: .85rem; font-weight: 600; color: var(--muted); }
.footer-links a:hover { color: var(--text); }
.footer-meta { font-size: .8rem; color: var(--muted); display: grid; gap: .25rem; }
.cta-band {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem;
  margin-top: 4.5rem; padding: 1.5rem 1.75rem; border-radius: 1.75rem;
  background: linear-gradient(120deg, #4f46e5, #0891b2 60%, #c026d3); color: #fff;
}
.cta-band p { margin: .25rem 0 0; opacity: .85; font-size: .9rem; }
.cta-band .btn { background: #fff; color: #1e1b4b; }

/* ---------- Toast ---------- */
.toast-stack { position: fixed; z-index: 95; left: 50%; bottom: 1.5rem; transform: translateX(-50%); display: grid; gap: .5rem; width: min(24rem, calc(100vw - 2rem)); }
.toast {
  padding: .85rem 1.1rem; border-radius: 1rem; background: var(--text); color: var(--bg);
  font-size: .875rem; font-weight: 600; box-shadow: var(--shadow-pop); animation: fadeUp .25s ease both;
}
.toast.is-error { background: var(--danger); color: #fff; }

/* ---------- Skeleton ---------- */
.skeleton { border-radius: 1.5rem; background: linear-gradient(90deg, var(--surface-raised), var(--surface), var(--surface-raised)); background-size: 200% 100%; animation: shimmer 1.2s infinite; }
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}

.theme-switch svg { width: 1.15rem; height: 1.15rem; flex-shrink: 0; }
svg { flex-shrink: 0; }