/* ==========================================================================
   SoundRadar 宣传站 - pages.css
   首页及子页面专属样式
   ========================================================================== */

/* ============ Hero ============ */
.hero {
  position: relative;
  padding: calc(var(--header-h) + var(--space-3xl)) 0 var(--space-4xl);
  background: var(--bg);
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: var(--grad-hero);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: var(--grad-mesh);
  pointer-events: none;
  opacity: .6;
}
.hero .container { position: relative; z-index: 1; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-eyebrow {
  margin-bottom: var(--space-lg);
  animation: fadeInUp .8s var(--ease-out) backwards;
}
.hero h1 {
  margin-bottom: var(--space-lg);
  animation: fadeInUp .8s var(--ease-out) .1s backwards;
}
.hero .lead {
  font-size: 1.18rem;
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: var(--space-xl);
  animation: fadeInUp .8s var(--ease-out) .2s backwards;
}
.hero-cta {
  display: flex; flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  animation: fadeInUp .8s var(--ease-out) .3s backwards;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-trust { display: flex; flex-wrap: wrap; gap: var(--space-xl); }
.hero-trust .item { display: flex; align-items: center; gap: 10px; font-size: .9rem; color: var(--text-muted); }
.hero-trust .item strong { font-family: var(--font-mono); font-size: 1.2rem; color: var(--text); }
.hero-trust .item svg { width: 20px; height: 20px; color: var(--accent); }

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-2xl); text-align: center; }
  .hero .lead { margin-left: auto; margin-right: auto; }
  .hero-cta, .hero-trust { justify-content: center; }
  .radar-stage { max-width: 340px; }
}

/* ============ 核心功能 ============ */
.features {
  background: var(--bg-subtle);
  position: relative;
  overflow: hidden;
}
.features::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(79, 70, 229, .06) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(16, 185, 129, .06) 0%, transparent 50%);
  pointer-events: none;
}
.features .container { position: relative; z-index: 1; }
.feature-card { height: 100%; }

/* ============ 技术优势（大数字） ============ */
.tech { background: var(--bg); position: relative; }
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-xl); }
.tech-item {
  text-align: center; padding: var(--space-2xl) var(--space-xl);
  border-radius: var(--radius-xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
  position: relative; overflow: hidden;
}
.tech-item::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at center, var(--primary-soft) 0%, transparent 70%);
  opacity: 0; transition: opacity var(--t);
}
.tech-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-border);
}
.tech-item:hover::before { opacity: 1; }
.tech-item > * { position: relative; z-index: 1; }
.tech-item .big {
  font-family: var(--font-mono); font-size: 3rem; font-weight: 700;
  line-height: 1; margin-bottom: var(--space-md);
  transition: transform var(--t);
}
.tech-item:hover .big { transform: scale(1.05); }
.tech-item .big.grad { background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.tech-item .big .unit { font-size: 1.2rem; color: var(--text-muted); -webkit-text-fill-color: var(--text-muted); }
.tech-item h4 { margin-bottom: 6px; }
.tech-item p { font-size: .9rem; }
@media (max-width: 880px) { .tech-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .tech-grid { grid-template-columns: 1fr; } }

/* ============ 用户受益 ============ */
.benefits { background: var(--bg-subtle); position: relative; overflow: hidden; }
.benefits::before {
  content: ''; position: absolute; inset: 0;
  background: var(--grad-mesh);
  opacity: .4;
  pointer-events: none;
}
.benefits .container { position: relative; z-index: 1; }
.benefit-card {
  display: flex; gap: var(--space-lg);
  align-items: flex-start;
  height: 100%;
  transition: transform var(--t);
}
.benefit-card:hover { transform: translateX(4px); }
.benefit-card .num {
  flex: none; width: 48px; height: 48px;
  border-radius: var(--radius-lg);
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-weight: 700; font-size: 1.2rem;
  background: var(--accent-soft);
  color: var(--accent-hover);
  box-shadow: 0 4px 12px rgba(16, 185, 129, .15);
  transition: transform var(--t), box-shadow var(--t);
}
.benefit-card:hover .num {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 8px 20px rgba(16, 185, 129, .25);
}
.benefit-card h4 { margin-bottom: 6px; }
.benefit-card p { font-size: .92rem; }

/* ============ 场景应用 ============ */
.scenario-card {
  position: relative; overflow: hidden;
  height: 240px;
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  display: flex; flex-direction: column;
  justify-content: flex-end;
  color: #fff;
  border: 1px solid transparent;
  transition: transform var(--t), box-shadow var(--t);
}
.scenario-card::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  opacity: .95;
  transition: opacity var(--t);
}
.scenario-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-2xl);
}
.scenario-card:hover::before { opacity: 1; }
.scenario-card::after {
  content: ''; position: absolute; inset: 0; z-index: 1;
  background: radial-gradient(circle at bottom right, rgba(255,255,255,.15) 0%, transparent 60%);
  opacity: 0; transition: opacity var(--t);
}
.scenario-card:hover::after { opacity: 1; }
.scenario-card > * { position: relative; z-index: 2; }
.scenario-card .ico {
  width: 48px; height: 48px;
  margin-bottom: auto;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,.2));
}
.scenario-card h4 { color: #fff; margin-bottom: 6px; font-size: 1.35rem; }
.scenario-card p { color: rgba(255,255,255,.9); font-size: .92rem; }
.sc-game::before { background: linear-gradient(135deg, #4f46e5, #6366f1); }
.sc-film::before { background: linear-gradient(135deg, #7c3aed, #ec4899); }
.sc-rehab::before { background: linear-gradient(135deg, #10b981, #14b8a6); }
.sc-pro::before { background: linear-gradient(135deg, #0ea5e9, #2563eb); }

/* ============ 对比区 ============ */
.compare { background: var(--bg); }
.compare-wrap { overflow-x: auto; border-radius: var(--radius-lg); }

/* ============ CTA 区 ============ */
.cta-band {
  background: var(--grad-brand);
  border-radius: var(--radius-2xl);
  padding: var(--space-3xl) var(--space-2xl);
  text-align: center; color: #fff;
  position: relative; overflow: hidden;
  box-shadow: var(--shadow-2xl), var(--glow-primary);
}
.cta-band::before, .cta-band::after {
  content: ""; position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
}
.cta-band::before {
  width: 400px; height: 400px;
  top: -150px; right: -100px;
  animation: float 8s ease-in-out infinite;
}
.cta-band::after {
  width: 250px; height: 250px;
  bottom: -120px; left: -80px;
  animation: float 10s ease-in-out infinite reverse;
}
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(20px, 20px) scale(1.05); }
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 {
  color: #fff; margin-bottom: var(--space-md);
  text-shadow: 0 2px 12px rgba(0,0,0,.15);
}
.cta-band p {
  color: rgba(255,255,255,.95);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto var(--space-xl);
  text-shadow: 0 1px 8px rgba(0,0,0,.1);
}
.cta-band .btn {
  background: #fff; color: var(--primary);
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
}
.cta-band .btn:hover {
  background: rgba(255,255,255,.95);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.cta-band .btn-ghost-w {
  background: transparent; color: #fff;
  border-color: rgba(255,255,255,.5);
}
.cta-band .btn-ghost-w:hover {
  background: rgba(255,255,255,.2);
  border-color: #fff;
}

/* ============ 子页面通用 ============ */
.page-hero { padding: calc(var(--header-h) + var(--space-3xl)) 0 var(--space-2xl); background: var(--bg-subtle); border-bottom: 1px solid var(--border); }
.page-hero::before { content: ""; position: absolute; inset: 0; background: var(--grad-hero); pointer-events: none; }
.page-hero > * { position: relative; }
.page-hero .eyebrow { display: inline-block; font-size: .8rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--primary); padding: 6px 14px; background: var(--primary-soft); border-radius: var(--radius-full); margin-bottom: var(--space-lg); }
.page-hero h1 { margin-bottom: var(--space-md); }
.page-hero p { font-size: 1.08rem; max-width: 640px; }

.breadcrumb { font-size: .85rem; color: var(--text-subtle); margin-bottom: var(--space-md); }
.breadcrumb a:hover { color: var(--primary); }

/* ============ pricing 页 ============ */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); align-items: stretch; }
.price-card { display: flex; flex-direction: column; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-2xl) var(--space-xl); position: relative; transition: transform var(--t), box-shadow var(--t); }
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.price-card.featured { border-color: var(--primary); box-shadow: var(--shadow-primary); }
.price-card .plan-name { font-weight: 700; font-size: 1.1rem; margin-bottom: var(--space-sm); }
.price-card .price { font-family: var(--font-mono); font-size: 2.6rem; font-weight: 700; line-height: 1; }
.price-card .price .per { font-size: .95rem; font-weight: 500; color: var(--text-muted); }
.price-card .price-desc { color: var(--text-subtle); font-size: .85rem; margin: 6px 0 var(--space-lg); }
.price-card ul { margin: var(--space-lg) 0; flex: 1; }
.price-card ul li { display: flex; gap: 10px; padding: 8px 0; font-size: .92rem; color: var(--text-muted); border-bottom: 1px solid var(--border); }
.price-card ul li:last-child { border-bottom: none; }
.price-card ul li svg { width: 18px; height: 18px; color: var(--accent); flex: none; margin-top: 2px; }
.price-card .badge-top { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); }
@media (max-width: 880px) { .price-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; } }

/* 公益方案卡（主推大卡 + 副入口） */
.price-card--hero { max-width: 560px; margin-inline: auto; }
.price-card--hero .price { font-size: 3rem; }
.plan-sub-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-lg); max-width: 720px; margin: var(--space-xl) auto 0; }
.price-card--mini { padding: var(--space-lg) var(--space-xl); }
.price-card--mini .plan-name { font-size: 1rem; margin-bottom: 6px; }
.price-card--mini .mini-desc { color: var(--text-muted); font-size: .88rem; margin: 0 0 var(--space-sm); }
@media (max-width: 880px) { .plan-sub-grid { grid-template-columns: 1fr; max-width: 480px; margin-inline: auto; } }

/* ============ manual 页 ============ */
.doc-layout { display: grid; grid-template-columns: 240px 1fr; gap: var(--space-2xl); align-items: start; }
.doc-toc { position: sticky; top: calc(var(--header-h) + 16px); background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--space-lg); }
.doc-toc h5 { font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-subtle); margin-bottom: var(--space-sm); }
.doc-toc a { display: block; padding: 6px 10px; border-radius: var(--radius-sm); font-size: .9rem; color: var(--text-muted); }
.doc-toc a:hover, .doc-toc a.active { color: var(--primary); background: var(--primary-soft); }
.doc-content h2 { margin-top: var(--space-2xl); margin-bottom: var(--space-md); padding-bottom: var(--space-sm); border-bottom: 1px solid var(--border); }
.doc-content h2:first-child { margin-top: 0; }
.doc-content h3 { margin: var(--space-xl) 0 var(--space-sm); }
.doc-content p, .doc-content li { color: var(--text-muted); line-height: 1.8; }
.doc-content ul { padding-left: 20px; margin-bottom: var(--space-md); }
.doc-content ul li { list-style: disc; margin-bottom: 6px; }
.doc-content code { background: var(--surface); padding: 2px 8px; border-radius: var(--radius-sm); font-size: .88em; }
.doc-content .kbd { display: inline-block; padding: 2px 8px; background: var(--bg-elevated); border: 1px solid var(--border-strong); border-bottom-width: 2px; border-radius: var(--radius-sm); font-family: var(--font-mono); font-size: .85em; }
@media (max-width: 880px) { .doc-layout { grid-template-columns: 1fr; } .doc-toc { position: static; } }

/* ============ contact 页 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-2xl); align-items: start; }
.contact-card { display: flex; gap: var(--space-md); align-items: flex-start; padding: var(--space-lg); border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-elevated); margin-bottom: var(--space-md); }
.contact-card .ico { width: 44px; height: 44px; flex: none; border-radius: var(--radius-md); display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); }
.contact-card h4 { margin-bottom: 4px; }
.contact-card p { font-size: .9rem; margin: 0; }
@media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; } }

/* ============ 404 ============ */
.notfound { min-height: 70vh; display: grid; place-items: center; text-align: center; }
.notfound .code { font-family: var(--font-mono); font-size: clamp(5rem, 18vw, 10rem); font-weight: 800; line-height: 1; background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }