@charset "UTF-8";

:root {
  --ice: #eef6fb;
  --white: #f7fcff;
  --navy: #12324a;
  --ink: #173044;
  --muted: #5c7384;
  --tangerine: #ff7a3a;
  --tangerine-deep: #e25a1c;
  --cyan: #1fb6c9;
  --cyan-soft: #d7f4f8;
  --line: #c9dce6;
  --hard: 8px 8px 0 rgba(18, 50, 74, 0.16);
  --hard-t: 8px 8px 0 rgba(255, 122, 58, 0.28);
  --shell: 1160px;
  --header-h: 72px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 14px); }
body {
  margin: 0;
  padding-top: var(--header-h);
  color: var(--ink);
  background:
    radial-gradient(circle at 12px 12px, rgba(31, 182, 201, 0.09) 1.5px, transparent 2px) 0 0 / 24px 24px,
    var(--ice);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.7;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { border: 0; background: none; color: inherit; font: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }
h1, h2, h3, p, ul, figure { margin: 0; padding: 0; }
ul { list-style: none; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.shell { width: min(calc(100% - 40px), var(--shell)); margin: 0 auto; }
.section { padding: 88px 0; }
.kicker { color: var(--tangerine-deep); font-size: 12px; font-weight: 800; letter-spacing: 0.2em; margin-bottom: 10px; }
.section-head { max-width: 640px; margin: 0 auto 42px; text-align: center; }
.section-head h2 { font-size: clamp(28px, 3.6vw, 42px); font-weight: 800; letter-spacing: -0.03em; }
.section-head p { margin-top: 10px; color: var(--muted); }

.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 1000; height: var(--header-h);
  background: rgba(238, 246, 251, 0.92); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px);
}
.header-inner { display: flex; height: 100%; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: inline-flex; gap: 10px; align-items: center; }
.brand img { width: 40px; height: 40px; border-radius: 10px; object-fit: cover; box-shadow: var(--hard-t); }
.brand strong { display: block; font-size: 16px; }
.brand small { display: block; color: var(--muted); font-size: 11px; }
.site-nav ul { display: flex; gap: 2px; }
.site-nav a { display: block; padding: 8px 12px; border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--muted); }
.site-nav a.is-current, .site-nav a:hover { background: var(--cyan-soft); color: var(--navy); }
.btn, .header-cta {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: 10px; font-size: 13px; font-weight: 800;
}
.header-cta, .btn-t { background: var(--tangerine); color: #fff; box-shadow: var(--hard-t); }
.btn-navy { background: var(--navy); color: #fff; box-shadow: var(--hard); }
.btn-ghost { border: 1.5px solid var(--navy); background: #fff; }
.header-cta:hover, .btn-t:hover, .btn-navy:hover, .btn-ghost:hover { transform: translate(-2px, -2px); }
.mobile-tools { display: none; gap: 8px; align-items: center; }
.menu-toggle { width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 10px; display: grid; place-items: center; }
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
  display: block; width: 16px; height: 2px; background: var(--navy); position: relative;
}
.menu-toggle span::before, .menu-toggle span::after { content: ""; position: absolute; left: 0; }
.menu-toggle span::before { top: -5px; } .menu-toggle span::after { top: 5px; }

.hero { padding: 36px 0 72px; }
.hero-copy { text-align: center; max-width: 780px; margin: 0 auto 36px; }
.hero h1 { font-size: clamp(44px, 7vw, 80px); font-weight: 900; letter-spacing: -0.05em; line-height: 0.95; }
.hero h1 em { display: block; margin-top: 10px; font-style: normal; font-size: 0.34em; color: var(--tangerine); font-weight: 700; }
.hero-lead { margin: 16px auto 0; max-width: 620px; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 22px; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 16px; }
.hero-chips span {
  padding: 6px 12px; border-radius: 999px; background: #fff; border: 1px solid var(--line);
  font-size: 12px; font-weight: 700; color: var(--navy);
}

.board {
  position: relative;
  background: var(--navy);
  color: #dff3f8;
  border-radius: 24px;
  padding: 18px;
  box-shadow: 16px 18px 0 rgba(255, 122, 58, 0.28);
  overflow: hidden;
}
.board-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; font-size: 12px; font-weight: 800; letter-spacing: 0.12em; color: var(--cyan); }
.days { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.days button {
  padding: 7px 12px; border-radius: 8px; background: rgba(255,255,255,0.08); color: #9ec4d2; font-size: 12px; font-weight: 700;
}
.days button.is-on { background: var(--tangerine); color: #fff; }
.slots { display: grid; gap: 10px; }
.slot {
  display: grid; grid-template-columns: 72px 1fr auto; gap: 12px; align-items: center;
  padding: 10px; border-radius: 14px; background: rgba(255,255,255,0.06);
}
.slot img { width: 72px; height: 90px; object-fit: cover; border-radius: 8px; }
.slot strong { display: block; color: #fff; font-size: 14px; }
.slot small { color: #9ec4d2; font-size: 12px; }
.slot em { font-style: normal; font-size: 12px; font-weight: 800; color: var(--tangerine); }
.float-chip {
  position: absolute; z-index: 2; padding: 10px 12px; border-radius: 12px; background: #fff; color: var(--navy);
  font-size: 12px; font-weight: 800; box-shadow: var(--hard-t); animation: floatY 4.6s ease-in-out infinite;
}
.float-chip.a { top: 18px; right: -12px; }
.float-chip.b { bottom: 28px; left: -12px; animation-delay: -1.4s; box-shadow: var(--hard); }
@keyframes floatY { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }

.channels { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 16px; }
.ch {
  padding: 26px; border-radius: 20px; background: #fff; border: 1.5px solid var(--line); box-shadow: var(--hard);
}
.ch:nth-child(1) { background: var(--navy); color: #fff; border: 0; }
.ch:nth-child(2) { background: var(--tangerine); color: #fff; border: 0; box-shadow: var(--hard-t); }
.ch:nth-child(3) { background: var(--cyan-soft); }
.ch:nth-child(4) { background: #fff; }
.ch h3 { font-size: 20px; margin: 8px 0 10px; }
.ch p { font-size: 14px; color: var(--muted); }
.ch:nth-child(1) p, .ch:nth-child(2) p { color: rgba(255,255,255,0.88); }

.mosaic {
  display: grid; grid-template-columns: 1.3fr 1fr 1fr; grid-template-rows: auto auto; gap: 14px;
}
.mosaic figure { margin: 0; overflow: hidden; border-radius: 18px; border: 2px solid var(--navy); background: #fff; box-shadow: var(--hard); }
.mosaic figure:first-child { grid-row: 1 / span 2; }
.mosaic img { width: 100%; height: 100%; object-fit: cover; min-height: 180px; }
.mosaic figure:first-child img { min-height: 420px; aspect-ratio: 9/16; }
.mosaic figcaption { padding: 10px 12px; background: var(--navy); color: #fff; font-size: 12px; font-weight: 800; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 32px 20px; }
.stat:nth-child(1) { background: var(--tangerine); color: #fff; }
.stat:nth-child(2) { background: var(--navy); color: #fff; }
.stat:nth-child(3) { background: var(--cyan); color: #fff; }
.stat:nth-child(4) { background: #f3d27a; color: var(--navy); }
.stat strong { display: block; font-size: clamp(28px, 3.5vw, 40px); font-weight: 900; }
.stat span { font-size: 13px; font-weight: 700; }

.compare-wrap { overflow-x: auto; border: 1.5px solid var(--line); background: #fff; box-shadow: var(--hard); }
.compare-table { width: 100%; min-width: 720px; border-collapse: collapse; font-size: 13px; }
.compare-table th, .compare-table td { padding: 13px 14px; text-align: center; border-bottom: 1px solid var(--ice); }
.compare-table th:first-child, .compare-table td:first-child { text-align: left; font-weight: 700; }
.compare-table thead th { background: var(--navy); color: #fff; }
.compare-table thead th.hl { background: var(--tangerine); }
.compare-table .hl { color: var(--tangerine-deep); font-weight: 800; }

.slots-guide { display: grid; gap: 12px; }
.guide-row {
  display: grid; grid-template-columns: 90px 1fr; background: #fff; border: 1.5px solid var(--line); box-shadow: var(--hard);
}
.guide-row:nth-child(even) { box-shadow: var(--hard-t); }
.time { display: grid; place-items: center; background: var(--cyan-soft); font-weight: 900; color: var(--navy); }
.guide-row:nth-child(even) .time { background: #ffe4d4; color: var(--tangerine-deep); }
.guide-body { padding: 16px 18px; }
.guide-body h3 { font-size: 16px; margin-bottom: 6px; }
.guide-body p { color: var(--muted); font-size: 13.5px; }

.faq-list { max-width: 800px; margin: 0 auto; display: grid; gap: 10px; }
.faq-item { background: #fff; border: 1.5px solid var(--line); overflow: hidden; }
.faq-item.is-open { box-shadow: var(--hard-t); border-color: var(--tangerine); }
.faq-trigger { width: 100%; display: flex; justify-content: space-between; gap: 12px; padding: 16px 18px; text-align: left; font-weight: 700; }
.faq-panel { max-height: 0; overflow: hidden; opacity: 0; transition: 0.3s; padding: 0 18px; }
.faq-item.is-open .faq-panel { max-height: 420px; opacity: 1; padding: 0 18px 16px; }
.faq-panel p { color: var(--muted); font-size: 13.5px; }

.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.review-card { padding: 22px; background: #fff; border-left: 6px solid var(--tangerine); box-shadow: var(--hard); }
.review-card:nth-child(2) { transform: translateY(14px); border-left-color: var(--cyan); }
.review-card:nth-child(3) { border-left-color: var(--navy); }
.review-card p { font-size: 13.5px; margin-bottom: 12px; }
.review-card footer { color: var(--muted); font-size: 12px; }

.download { padding: 80px 0; background: linear-gradient(120deg, var(--navy), #1a4a5c 55%, #12324a); color: #dff3f8; }
.signal {
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 24px; align-items: center;
  padding: 36px; border: 1.5px solid rgba(255,255,255,0.12); border-radius: 22px; position: relative; overflow: hidden;
}
.signal::before { content: "ON AIR"; position: absolute; right: 16px; top: 40%; font-size: 72px; font-weight: 900; color: rgba(255,255,255,0.04); }
.signal h2 { color: #fff; font-size: clamp(26px, 3.6vw, 38px); margin: 8px 0 12px; }
.signal p { margin-bottom: 18px; }
.dl-links { display: flex; flex-wrap: wrap; gap: 10px; }
.sig-brand { text-align: center; }
.sig-brand img { width: 92px; height: 92px; margin: 0 auto 10px; border-radius: 18px; box-shadow: var(--hard-t); object-fit: cover; }
.sig-brand strong { display: block; color: #fff; font-size: 20px; }

.site-footer { padding: 48px 0 24px; background: #0d2230; color: #8aa3b3; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.footer-grid h4 { color: #fff; font-size: 13px; margin-bottom: 10px; }
.footer-brand { display: flex; gap: 10px; align-items: center; margin-bottom: 8px; color: #fff; }
.footer-brand img { width: 34px; height: 34px; border-radius: 9px; object-fit: cover; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 16px; text-align: center; font-size: 12px; }

@media (max-width: 980px) {
  .site-nav, .header-inner > .header-cta { display: none; }
  .mobile-tools { display: flex; }
  .site-nav {
    display: block; position: fixed; top: var(--header-h); left: 0; right: 0;
    background: rgba(238,246,251,0.98); padding: 12px 18px 18px;
    transform: translateY(-120%); opacity: 0; pointer-events: none; transition: 0.3s;
  }
  body.menu-open .site-nav { transform: none; opacity: 1; pointer-events: auto; }
  .site-nav ul { flex-direction: column; }
  .hero-copy { order: 1; }
  .board { order: 2; }
  .channels, .signal, .footer-grid { grid-template-columns: 1fr; }
  .mosaic { grid-template-columns: 1fr 1fr; }
  .mosaic figure:first-child { grid-row: auto; }
  .mosaic figure:first-child img { min-height: 220px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .review-card:nth-child(2) { transform: none; }
  .float-chip { display: none; }
  .slot { grid-template-columns: 56px 1fr; }
  .slot em { display: none; }
}
@media (max-width: 560px) {
  .section { padding: 64px 0; }
  .dl-links a { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { .float-chip { animation: none; } }