/* ============================================================
   style.css — Stick Light Concert
   Tailwind CDN → 本地静态化 + 自定义样式合并 + 正文字体放大
   ============================================================ */

/* ===== RESET & BASE ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  font-size: 1.15rem;     /* 18.4px（原 1.05rem ≈ 16.8px） */
  background: #000;
  color: #fff;
  overflow-x: hidden;
  line-height: 1.7;
}
h1, h2, h3, h4 { font-family: 'Space Grotesk', sans-serif; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
section { position: relative; }

/* ===== DISPLAY ===== */
.hidden { display: none; }
.inline { display: inline; }
.inline-block { display: inline-block; }
.inline-flex { display: inline-flex; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.items-center { align-items: center; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-5 { gap: 1.25rem; }
.gap-8 { gap: 2rem; }
.gap-10 { gap: 2.5rem; }
.gap-12 { gap: 3rem; }
.gap-14 { gap: 3.5rem; }
.gap-16 { gap: 4rem; }
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-6 { top: 1.5rem; }
.left-6 { left: 1.5rem; }
.right-6 { right: 1.5rem; }
.bottom-8 { bottom: 2rem; }
.right-8 { right: 2rem; }
.z-[100] { z-index: 100; }
.z-50 { z-index: 50; }
.z-[2] { z-index: 2; }
.z-10 { z-index: 10; }
.pointer-events-none { pointer-events: none; }
.overflow-hidden { overflow: hidden; }
.overflow-x-auto { overflow-x: auto; }
.object-cover { object-fit: cover; }

/* ===== TYPOGRAPHY ===== */
.text-xs { font-size: 0.875rem; }     /* 14px（原 12px） */
.text-sm { font-size: 1rem; }         /* 16px（原 14px） */
.text-base { font-size: 1.0625rem; }  /* 17px（原 16px） */
.text-lg { font-size: 1.1875rem; }    /* 19px（原 18px） */
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.text-5xl { font-size: 3rem; }
.text-\[9px\] { font-size: 9px; }
.text-\[clamp\(1rem\,1\.5vw\,1\.15rem\)\] { font-size: clamp(1rem,1.5vw,1.15rem); }
.text-\[clamp\(1\.8rem\,3\.5vw\,2\.8rem\)\] { font-size: clamp(1.8rem,3.5vw,2.8rem); }
.text-\[clamp\(2\.6rem\,6vw\,4\.6rem\)\] { font-size: clamp(2.6rem,6vw,4.6rem); }
.text-\[0\.95rem\] { font-size: 0.95rem; }
.text-\[0\.9rem\] { font-size: 0.9rem; }
.text-\[0\.85rem\] { font-size: 0.85rem; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-\[800\] { font-weight: 800; }
.font-light { font-weight: 300; }

.leading-\[1\.06\] { line-height: 1.06; }
.leading-\[1\.1\] { line-height: 1.1; }
.leading-relaxed { line-height: 1.625; }
.leading-tight { line-height: 1.25; }

.tracking-\[0\.3em\] { letter-spacing: 0.3em; }
.tracking-\[0\.5em\] { letter-spacing: 0.5em; }
.tracking-\[-0\.03em\] { letter-spacing: -0.03em; }
.tracking-wider { letter-spacing: 0.05em; }

.text-center { text-align: center; }
.text-left { text-align: left; }
.uppercase { text-transform: uppercase; }

.no-underline { text-decoration: none; }

/* ===== TEXT COLORS ===== */
.text-white { color: #fff; }
.text-white\/70 { color: rgba(255,255,255,0.7); }
.text-white\/80 { color: rgba(255,255,255,0.8); }
.text-white\/90 { color: rgba(255,255,255,0.9); }
.text-indigo-400 { color: #818cf8; }
.text-indigo-400\/70 { color: rgba(129,140,248,0.7); }
.text-slate-400 { color: #94a3b8; }
.text-slate-500 { color: #64748b; }
.text-slate-600 { color: #475569; }
.text-slate-700 { color: #334155; }
.text-cyan-400 { color: #22d3ee; }
.text-purple-400 { color: #c084fc; }
.text-amber-400 { color: #fbbf24; }

.hover\:text-indigo-400:hover { color: #818cf8; }
.hover\:text-indigo-300:hover { color: #a5b4fc; }
.hover\:text-cyan-300:hover { color: #67e8f9; }
.hover\:text-purple-300:hover { color: #d8b4fe; }

/* ===== BACKGROUND ===== */
.bg-black { background: #000; }
.bg-indigo-500\/10 { background: rgba(99,102,241,0.1); }
.bg-indigo-600 { background: #6366f1; }
.bg-cyan-500\/10 { background: rgba(6,182,212,0.1); }
.bg-purple-500\/10 { background: rgba(168,85,247,0.1); }
.bg-amber-500\/10 { background: rgba(251,191,36,0.1); }
.bg-white\/\[0\.02\] { background: rgba(255,255,255,0.02); }
.bg-white\/\[0\.03\] { background: rgba(255,255,255,0.03); }
.bg-white\/\[0\.06\] { background: rgba(255,255,255,0.06); }
.bg-\[#25D366\] { background: #25D366; }
.bg-cover { background-size: cover; }
.bg-center { background-position: center; }
.bg-gradient-to-t { background-image: linear-gradient(to top, var(--tw-gradient-stops)); }
.from-indigo-950\/10 { --tw-gradient-from: rgba(30,27,75,0.1); --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(30,27,75,0)); }
.to-transparent { --tw-gradient-to: transparent; }

.hover\:bg-indigo-500:hover { background: #6366f1; }
.hover\:bg-white\/\[0\.06\]:hover { background: rgba(255,255,255,0.06); }
.hover\:scale-110:hover { transform: scale(1.1); }

/* ===== WIDTH / HEIGHT ===== */
.w-full { width: 100%; }
.w-auto { width: auto; }
.w-8 { width: 2rem; }
.w-\[92\%\] { width: 92%; }
.w-\[7px\] { width: 7px; }
.h-full { height: 100%; }
.h-8 { height: 2rem; }
.h-\[7px\] { height: 7px; }
.max-w-\[820px\] { max-width: 820px; }
.max-w-\[1100px\] { max-width: 1100px; }
.max-w-\[1000px\] { max-width: 1000px; }
.max-w-\[900px\] { max-width: 900px; }
.max-w-\[800px\] { max-width: 800px; }
.max-w-\[700px\] { max-width: 700px; }
.max-w-\[600px\] { max-width: 600px; }
.max-w-\[640px\] { max-width: 640px; }
.max-w-4xl { max-width: 56rem; }
.max-w-7xl { max-width: 80rem; }
.max-w-2xl { max-width: 42rem; }
.aspect-\[4\/3\] { aspect-ratio: 4/3; }

/* ===== SPACING ===== */
.mx-auto { margin-left: auto; margin-right: auto; }
.mr-2 { margin-right: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 1.25rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mt-16 { margin-top: 4rem; }
.mt-20 { margin-top: 5rem; }
.mt-24 { margin-top: 6rem; }
.mt-32 { margin-top: 8rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-14 { margin-bottom: 3.5rem; }
.mb-20 { margin-bottom: 5rem; }

.p-8 { padding: 2rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-14 { padding-top: 3.5rem; padding-bottom: 3.5rem; }
.py-28 { padding-top: 7rem; padding-bottom: 7rem; }
.py-32 { padding-top: 8rem; padding-bottom: 8rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.px-9 { padding-left: 2.25rem; padding-right: 2.25rem; }
.px-10 { padding-left: 2.5rem; padding-right: 2.5rem; }
.pt-6 { padding-top: 1.5rem; }
.pt-12 { padding-top: 3rem; }
.pb-6 { padding-bottom: 1.5rem; }

/* ===== BORDERS ===== */
.border { border: 1px solid; }
.border-b { border-bottom-width: 1px; }
.border-t { border-top-width: 1px; }
.border-white\/5 { border-color: rgba(255,255,255,0.05); }
.border-white\/\[0\.04\] { border-color: rgba(255,255,255,0.04); }
.border-white\/\[0\.06\] { border-color: rgba(255,255,255,0.06); }
.border-white\/10 { border-color: rgba(255,255,255,0.1); }
.border-indigo-500\/15 { border-color: rgba(99,102,241,0.15); }
.border-cyan-500\/15 { border-color: rgba(6,182,212,0.15); }
.border-purple-500\/15 { border-color: rgba(168,85,247,0.15); }
.border-amber-500\/15 { border-color: rgba(251,191,36,0.15); }
.rounded-full { border-radius: 9999px; }
.rounded-2xl { border-radius: 1rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-lg { border-radius: 0.5rem; }

/* ===== SHADOWS ===== */
.shadow-lg { box-shadow: 0 10px 15px rgba(0,0,0,0.1); }

/* ===== TRANSITIONS ===== */
.transition { transition: all 0.2s ease; }
.transition-all { transition: all 0.2s ease; }
.duration-300 { transition-duration: 0.3s; }

/* ===== ASPECT RATIO ===== */
.aspect-\[4\/3\] { aspect-ratio: 4/3; }
.w-full { width: 100%; }
.h-full { height: 100%; }

/* ===== RESPONSIVE: md (768px+) ===== */
@media (min-width: 768px) {
  .md\:flex { display: flex; }
  .md\:inline { display: inline; }
  .md\:hidden { display: none; }
  .md\:h-10 { height: 2.5rem; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:gap-14 { gap: 3.5rem; }
  .md\:gap-16 { gap: 4rem; }
  .md\:px-12 { padding-left: 3rem; padding-right: 3rem; }
  .md\:px-16 { padding-left: 4rem; padding-right: 4rem; }
  .md\:py-16 { padding-top: 4rem; padding-bottom: 4rem; }
  .md\:p-12 { padding: 3rem; }
  .md\:text-right { text-align: right; }
  .md\:text-5xl { font-size: 3rem; }
}

/* ============================================================
   CUSTOM STYLES (来自内联 <style> block)
   ============================================================ */

/* ---- Scroll Reveal ---- */
.rv { opacity: 0; transform: translateY(30px); transition: all 0.6s ease-out; }
.rv.show { opacity: 1; transform: translateY(0); }

/* ---- Hero ---- */
.hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: url('/images/stick-light-concert-hero.jpg') center/cover no-repeat; }
.hero-ov { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(0,0,0,0.78) 20%, rgba(0,0,0,0.15) 70%); }

/* ---- Glass Card ---- */
.glass { background: rgba(0,0,0,0.72); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border: 1px solid rgba(255,255,255,0.08); border-radius: 24px; }

/* ---- Glow Button ---- */
.glow-btn { box-shadow: 0 0 30px rgba(99,102,241,0.25); }
.glow-btn:hover { box-shadow: 0 0 50px rgba(99,102,241,0.4); }

/* ---- Tab System ---- */
.tab-bar { display: flex; gap: 4px; background: rgba(255,255,255,0.03); padding: 6px; border-radius: 16px; overflow-x: auto; }
.tab-btn { padding: 14px 26px; border-radius: 10px; border: none; background: transparent; color: #64748b; font-size: 0.85rem; font-weight: 600; cursor: pointer; transition: all 0.25s; white-space: nowrap; font-family: 'Inter', sans-serif; }
.tab-btn:hover { color: #94a3b8; }
.tab-btn.active { background: rgba(99,102,241,0.2); color: #a5b4fc; box-shadow: 0 0 16px rgba(99,102,241,0.12); }
.tab-panel { display: none; animation: fadeIn 0.4s; }
.tab-panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ---- Accordion ---- */
.acc-item { border-bottom: 1px solid rgba(255,255,255,0.06); }
.acc-btn { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 22px 0; background: none; border: none; color: #e2e8f0; font-size: 1rem; font-weight: 600; cursor: pointer; font-family: 'Inter', sans-serif; text-align: left; transition: color 0.3s; }
.acc-btn:hover { color: #a5b4fc; }
.acc-btn .arr { font-size: 1.2rem; color: #6366f1; transition: transform 0.3s; flex-shrink: 0; margin-left: 16px; }
.acc-item.open .arr { transform: rotate(180deg); }
.acc-body { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.acc-body-inner { padding: 0 0 22px; font-size: 0.9rem; color: #64748b; line-height: 1.7; }

/* ---- Content Card ---- */
.ct-card { background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: 16px; }

/* ---- FAQ 2-col ---- */
.faq-g { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.faq-i { padding: 22px; border-radius: 12px; background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); cursor: pointer; transition: border-color 0.3s; }
.faq-i:hover { border-color: rgba(99,102,241,0.2); }
.faq-i .q { font-size: 0.9rem; font-weight: 600; margin-bottom: 6px; padding-right: 24px; position: relative; }
.faq-i .q::after { content: '+'; position: absolute; right: 0; top: 0; color: #6366f1; font-size: 1.1rem; font-weight: 400; }
.faq-i.open .q::after { content: '\2212'; }
.faq-i .a { font-size: 0.85rem; color: #64748b; line-height: 1.6; display: none; margin-top: 8px; }
.faq-i.open .a { display: block; }

/* ---- Gradient Text ---- */
.gr-txt { color: transparent; background: linear-gradient(135deg, #c4b5fd, #2dd4bf); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

@media (max-width: 1024px) {
  .faq-g { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .tab-btn { padding: 10px 16px; font-size: 0.78rem; }
}

/* ---- Separator ---- */
.sep { width: 100%; height: 1px; background: linear-gradient(90deg, transparent, rgba(99,102,241,0.2), rgba(6,182,212,0.2), transparent); }

/* ---- Nav Background ---- */
.nav-bg { background: rgba(10,10,10,0.75); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,0.06); border-radius: 60px; padding: 0.6rem 2rem; }
@media (max-width: 768px) {
  .nav-bg { border-radius: 40px; padding: 0.5rem 1.2rem; }
}

/* ---- Stat Card / Border Glow / Text Gradient (HubSpot Form section) ---- */
.stat-card { background: rgba(255,255,255,0.02); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.04); }
.border-glow { border: 1px solid rgba(99,102,241,0.15); transition: border-color 0.4s ease; }
.border-glow:hover { border-color: rgba(99,102,241,0.4); }
.text-gradient { background: linear-gradient(135deg, #a5b4fc, #06b6d4); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ---- HubSpot Form ---- */
#hubspot-form-container .hs-form { display: flex; flex-direction: column; gap: 1.2rem; }
#hubspot-form-container .hs-form label { color: #94a3b8; font-size: 0.85rem; font-weight: 500; letter-spacing: 0.02em; }
#hubspot-form-container .hs-form input,
#hubspot-form-container .hs-form textarea,
#hubspot-form-container .hs-form select { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 0.9rem 1.2rem; color: #f1f5f9; font-size: 0.95rem; width: 100% !important; outline: none; transition: border 0.25s ease; }
#hubspot-form-container .hs-form input:focus,
#hubspot-form-container .hs-form textarea:focus,
#hubspot-form-container .hs-form select:focus { border-color: #6366f1; box-shadow: 0 0 0 3px rgba(99,102,241,0.15); }
#hubspot-form-container .hs-form .hs-button { background: #6366f1; border: none; border-radius: 40px; padding: 1rem 2.4rem; font-weight: 600; color: #fff; font-size: 1rem; cursor: pointer; transition: all 0.3s ease; width: auto; align-self: flex-start; }
#hubspot-form-container .hs-form .hs-button:hover { background: #4f46e5; box-shadow: 0 0 40px rgba(99,102,241,0.25); transform: scale(1.02); }
#hubspot-form-container .hs-form .hs-error-msgs { color: #f87171; font-size: 0.75rem; list-style: none; padding: 0; margin: 0.25rem 0 0 0; }
#hubspot-form-container .hs-form .hs-error-msgs li { padding-left: 0; }
#hubspot-form-container .hs-form .legal-consent-container { font-size: 0.75rem; color: #64748b; line-height: 1.5; }
#hubspot-form-container .hs-form .legal-consent-container a { color: #818cf8; text-decoration: underline; }