/* 风格 G：清爽 SaaS 定价页风（参考 bigvu.tv/pricing）
   白底 + 极淡蓝色同心弧、深海军蓝标题 + 亮蓝强调、胶囊按钮、圆角大卡片、月付/年付切换、
   四栏价格卡（推荐档蓝框 + 角标）、浅蓝小信息块、深色加购横幅、分组对比表（推荐列高亮）。 */
:root {
  --bg: #fff; --ink: #27345c; --ink-2: #1c2748; --muted: #5d6786; --line: #e3e8f5; --tile: #f3f6fe; --tile-2: #e9effd;
  --blue: #2563eb; --blue-2: #4f86f7; --navy: #243258; --green: #0a8f4e; --shadow: 0 18px 50px rgba(36, 50, 88, .08);
  color-scheme: light;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; background: var(--bg); color: var(--ink-2); line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 28px; }

/* 顶栏 */
.dock-wrap { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .9); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.dock { max-width: 1360px; margin: 0 auto; padding: 0 28px; height: 84px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; letter-spacing: -.01em; color: var(--blue); white-space: nowrap; }
.brand-mark { width: 30px; height: 30px; display: grid; place-items: center; background: var(--blue); isolation: isolate;
  mask: url('../web/icons/brand-logo.png') center/contain no-repeat; -webkit-mask: url('../web/icons/brand-logo.png') center/contain no-repeat; }
.brand-mark img { filter: grayscale(1); mix-blend-mode: multiply; }
.nav-links { display: flex; gap: 6px; font-size: 14.5px; font-weight: 500; }
.nav-links a { color: var(--ink); padding: 8px 16px; border-radius: 999px; }
.nav-links a:hover, .nav-links a.on { background: var(--tile); text-decoration: none; }
.nav-right { display: flex; align-items: center; justify-content: flex-end; gap: 10px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 24px; border-radius: 999px; font-size: 14.5px; font-weight: 600;
  border: 1px solid #cfd9f3; color: var(--ink-2); background: #fff; cursor: pointer; text-decoration: none !important; transition: transform .15s, box-shadow .2s, background .2s; font-family: inherit; }
.btn small { font-weight: 400; opacity: .7; font-size: 12px; }
a.btn:hover, button.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(36, 50, 88, .12); }
.btn-navy, .btn-primary { background: var(--navy); border-color: var(--navy); color: #fff; }
a.btn-navy:hover, a.btn-primary:hover { background: #1a2644; }
.btn[aria-disabled="true"] { opacity: .5; cursor: default; }
.lang { font: inherit; font-size: 14px; font-weight: 600; color: var(--ink-2); background: #fff; border: 1px solid #cfd9f3; border-radius: 999px; padding: 10px 22px; cursor: pointer; }
.lang:hover { background: var(--tile); }
.dock .btn { padding: 10px 22px; }

/* Hero */
.hero { position: relative; text-align: center; padding: 62px 0 24px; overflow: hidden; isolation: isolate; }
.hero::before { content: ""; position: absolute; z-index: -1; left: 50%; top: 0; width: 1700px; height: 1100px; transform: translateX(-50%);
  background:
    radial-gradient(closest-side, transparent 80%, rgba(37, 99, 235, .05) 81%, transparent 83%),
    radial-gradient(closest-side, transparent 64%, rgba(37, 99, 235, .05) 65%, transparent 67%),
    radial-gradient(closest-side, transparent 48%, rgba(37, 99, 235, .05) 49%, transparent 51%),
    radial-gradient(60% 40% at 50% 85%, rgba(79, 134, 247, .16), transparent 70%); }
.hero h1 { font-size: clamp(40px, 6vw, 76px); line-height: 1.06; letter-spacing: -.04em; font-weight: 800; margin: 0 auto 22px; max-width: 12em; color: #3a4a78; text-wrap: balance; }
.hero h1 span { color: var(--blue); }
.hero p.lead { font-size: 18px; color: var(--ink); max-width: 34em; margin: 0 auto 30px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.cta .btn { padding: 15px 30px; font-size: 15.5px; }
.cta .btn svg { display: none; }
.cta-more { margin-top: 18px; display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 22px; font-size: 13.5px; color: var(--muted); }
.cta-more b { color: var(--ink); font-weight: 600; }

.stage { max-width: 1040px; margin: 56px auto 0; position: relative; z-index: 1; }
.stage-grid, .stage-feature { display: block; }
.feature-banners { position: relative; width: 100%; aspect-ratio: 16 / 9; border-radius: 28px; overflow: hidden; background: #0d1114; touch-action: pan-y; text-align: left;
  border: 1px solid var(--line); box-shadow: 0 30px 80px rgba(36, 50, 88, .22); }
.feature-banner-slide { position: absolute; inset: 0; display: block; opacity: 0; pointer-events: none; transition: opacity .65s ease-in-out; }
.feature-banner-slide.active { opacity: 1; pointer-events: auto; z-index: 1; }
.feature-banner-slide img { display: block; width: 100%; height: 100%; object-fit: cover; }
.feature-banner-slide .cap { position: absolute; left: 16px; bottom: 16px; display: flex; align-items: center; gap: 10px; padding: 7px 7px 7px 16px; border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--ink-2); background: rgba(255, 255, 255, .92); box-shadow: 0 8px 24px rgba(0, 0, 0, .2); }
.feature-banner-slide .cap i { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--navy); color: #fff; font-style: normal; }
.modes { display: grid; grid-template-columns: repeat(5, 1fr) auto; gap: 12px; margin-top: 18px; }
.mode { position: relative; padding: 0; border: 2px solid transparent; border-radius: 16px; overflow: hidden; cursor: pointer; font: inherit; background: var(--tile); aspect-ratio: 16 / 9; transition: border-color .2s, transform .2s; }
.mode img { display: block; width: 100%; height: 100%; object-fit: cover; opacity: .72; transition: opacity .2s; }
.mode:hover img { opacity: 1; }
.mode span { position: absolute; inset: auto 0 0 0; padding: 14px 10px 6px; font-size: 12px; font-weight: 600; color: #fff; background: linear-gradient(transparent, rgba(20, 28, 56, .85)); text-align: left; }
.mode[aria-pressed="true"] { border-color: var(--blue); box-shadow: 0 10px 24px rgba(37, 99, 235, .28); }
.mode[aria-pressed="true"] img { opacity: 1; }
.pause { width: 46px; border-radius: 16px; border: 1px solid #cfd9f3; background: #fff; color: var(--ink); font: inherit; cursor: pointer; }
.pause:hover { background: var(--tile); }

/* 数据条 */
.statbar { margin: 54px auto 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 18px 56px; padding: 6px 0; }
.stat { display: flex; align-items: baseline; gap: 10px; color: var(--muted); font-size: 14px; }
.stat b { font-size: 30px; font-weight: 800; letter-spacing: -.02em; color: var(--ink); }

/* 区块标题 */
section { padding: 96px 0 12px; }
.eyebrow { display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--blue); }
h2 { font-size: clamp(30px, 3.8vw, 48px); line-height: 1.1; letter-spacing: -.03em; font-weight: 800; margin: 12px 0 12px; color: #33426f; text-wrap: balance; }
.sub { color: var(--muted); margin: 0 0 44px; max-width: 40em; }
.sec-head { text-align: center; }
.sec-head h2, .sec-head .sub { margin-inline: auto; }
section > .wrap > .eyebrow, section > .wrap > h2, section > .wrap > .sub { display: block; text-align: center; margin-inline: auto; }

.card { background: #fff; border: 1px solid var(--line); border-radius: 28px; padding: 28px; box-shadow: var(--shadow); transition: transform .25s, box-shadow .25s; }
.card h3 { margin: 14px 0 6px; font-size: 19px; font-weight: 700; color: var(--ink-2); }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.icon { width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; color: var(--blue); background: var(--tile-2); }
.icon svg { width: 22px; height: 22px; }
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; text-align: left; }
.b2 { grid-column: span 2; } .b3 { grid-column: span 3; } .b4 { grid-column: span 4; } .b6 { grid-column: span 6; }
.bento .card:hover { transform: translateY(-3px); box-shadow: 0 24px 60px rgba(36, 50, 88, .14); }
.bento .big { background: linear-gradient(135deg, var(--tile) 0%, #fff 75%); }
.bento .big h3 { font-size: 28px; margin-top: 26px; letter-spacing: -.02em; }
.bento .big p { font-size: 15.5px; max-width: 30em; }
.bento .wide { display: flex; gap: 20px; align-items: center; }
.bento .wide h3 { margin-top: 0; }

#shots { padding-top: 64px; }
.shots-stage { border-radius: 36px; padding: 52px 40px 74px; background: linear-gradient(180deg, var(--tile), #fff); border: 1px solid var(--line); }
.shots { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; align-items: start; }
.shot { margin: 0; text-align: center; }
.shot:nth-child(even) { transform: translateY(30px); }
.shot img { width: 100%; border-radius: 28px; border: 1px solid var(--line); box-shadow: 0 24px 50px rgba(36, 50, 88, .18); }
.shot figcaption { margin-top: 12px; font-size: 14px; color: var(--muted); }

.updates { display: grid; grid-template-columns: 1.05fr .95fr; gap: 28px; align-items: start; text-align: left; }
.updates .eyebrow, .updates h2, .updates .sub { text-align: left; margin-inline: 0; display: block; }
.updates .stack { display: grid; gap: 14px; }
.updates .previews { position: sticky; top: 100px; display: grid; gap: 14px; padding: 16px; background: var(--tile); border: 1px solid var(--line); border-radius: 32px; }
.previews .shot:nth-child(even) { transform: none; }
.previews .shot img { border-radius: 16px; box-shadow: none; }

/* 价格：四栏卡 + 月/年切换 */
.billing { display: flex; align-items: center; justify-content: center; gap: 14px; margin: 0 0 56px; }
.toggle { display: inline-flex; padding: 4px; border-radius: 999px; background: #eceff6; }
.toggle button { font: inherit; font-size: 14px; padding: 8px 20px; border: 0; border-radius: 999px; background: none; color: var(--muted); cursor: pointer; }
.toggle button[aria-pressed="true"] { background: #fff; color: var(--ink-2); font-weight: 600; box-shadow: 0 2px 8px rgba(36, 50, 88, .12); }
.save { color: var(--green); font-size: 14px; font-weight: 500; }
.plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; align-items: stretch; text-align: left; }
.plan { position: relative; display: flex; flex-direction: column; padding: 28px 24px 26px; }
.plan.featured { border: 3px solid var(--blue); padding: 26px 22px 24px; box-shadow: 0 26px 70px rgba(37, 99, 235, .2); }
.plan .tag { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); padding: 4px 16px; border-radius: 999px; background: var(--blue); color: #fff; font-size: 13px; font-weight: 600; white-space: nowrap; }
.tier { color: var(--blue); font-size: 13px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.tier-sub { color: var(--muted); font-size: 12.5px; margin-bottom: 20px; }
.plan h3 { margin: 0 0 4px; font-size: 22px; }
.price { display: flex; align-items: baseline; gap: 6px; font-size: 44px; font-weight: 800; letter-spacing: -.03em; line-height: 1.15; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.plan.featured .price { color: var(--blue); }
.price small { font-size: 15px; font-weight: 500; color: var(--muted); letter-spacing: 0; }
.price .p-y, .price .p-m { display: inline-flex; align-items: baseline; gap: 6px; }
.plan .p-m { display: none; }
.monthly .plan .p-y { display: none; }
.monthly .plan .price .p-m { display: inline-flex; }
.monthly .plan .bill .p-m { display: inline; }
.bill { min-height: 26px; color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.plan .btn-buy, .plan .btn-open { width: 100%; padding: 14px; margin-bottom: 22px; }
.btn-buy { color: var(--ink-2); border-color: #cfd9f3; background: #fff; flex-wrap: wrap; }
.btn-buy.primary { background: var(--navy); border-color: var(--navy); color: #fff; }
.btn-buy .soon { display: none; }
.btn-buy.off { opacity: .55; cursor: default; pointer-events: none; }
.btn-buy.off .soon { display: inline; }
.tiles { display: grid; gap: 10px; margin-bottom: 18px; }
.tile { background: var(--tile); border-radius: 16px; padding: 12px 14px; }
.tile .lab { display: block; font-size: 11.5px; font-weight: 700; letter-spacing: .04em; color: var(--muted); text-transform: uppercase; }
.tile b { font-size: 22px; font-weight: 700; color: var(--ink-2); }
.tile b em { font-style: normal; font-size: 14px; font-weight: 500; color: var(--muted); }
.tile small { display: block; font-size: 12px; color: var(--muted); }
.with { font-size: 13.5px; font-weight: 600; margin: 4px 0 8px; color: var(--ink-2); }
.plan ul { list-style: none; padding: 0; margin: 0; font-size: 14px; flex: 1; }
.plan li { padding: 4px 0 4px 26px; position: relative; color: var(--ink); }
.plan li::before { content: ""; position: absolute; left: 2px; top: 11px; width: 12px; height: 6px; border-left: 2px solid var(--blue); border-bottom: 2px solid var(--blue); transform: rotate(-45deg); }

.stat-note { margin-top: 34px; }
.activate { margin-top: 36px; padding: 22px 28px; text-align: left; background: var(--tile); box-shadow: none; }
.activate p { margin: 6px 0 0; line-height: 1.7; }
.activate code { background: #fff; color: var(--blue); padding: 1px 8px; border-radius: 6px; font-size: 13px; border: 1px solid var(--line); }

/* 加购横幅 */
.addon { margin-top: 64px; display: grid; grid-template-columns: 340px 1fr auto; gap: 34px; align-items: center; border-radius: 28px; overflow: hidden; background: linear-gradient(100deg, #0e1530, #14204a 60%, #1c3a8f); color: #fff; padding-right: 40px; }
.addon img { width: 100%; height: 100%; min-height: 190px; object-fit: cover; display: block; }
.addon .tagpill { display: inline-block; padding: 3px 12px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, .35); font-size: 12.5px; margin-bottom: 10px; }
.addon h3 { margin: 0 0 6px; font-size: 28px; letter-spacing: -.02em; }
.addon p { margin: 0; color: rgba(255, 255, 255, .75); max-width: 30em; font-size: 14.5px; }
.addon .btn { background: #fff; color: var(--ink-2); border-color: #fff; padding: 14px 30px; }

/* 对比表 */
#compare { padding-top: 90px; }
.table-wrap { overflow-x: auto; margin-top: 8px; border: 1px solid var(--line); border-radius: 24px; background: #fff; box-shadow: var(--shadow); text-align: left; }
table { border-collapse: collapse; width: 100%; min-width: 680px; font-size: 14px; }
th, td { padding: 13px 18px; text-align: left; border-bottom: 1px solid #eef1f8; }
th { font-weight: 600; color: var(--ink); font-size: 13.5px; background: #fff; }
td:not(:first-child), th:not(:first-child) { text-align: center; white-space: nowrap; }
td.hl, th.hl { background: #eaf1ff; }
th.hl { color: var(--blue); }
tr:last-child td { border-bottom: none; }
td:not(:first-child) { color: var(--ink); }

#suites { padding-top: 90px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; text-align: left; }
.suites a.card { display: block; color: inherit; text-decoration: none; }
.suites a.card:hover { transform: translateY(-3px); box-shadow: 0 24px 60px rgba(36, 50, 88, .14); }
.suites .go { color: var(--blue); font-size: 14px; font-weight: 600; margin-top: 14px; display: inline-block; }

footer { margin-top: 96px; padding: 34px 0 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; background: linear-gradient(180deg, #fff, var(--tile)); }
.foot { max-width: 1200px; margin: 0 auto; padding: 0 28px; display: flex; flex-wrap: wrap; gap: 14px 28px; justify-content: space-between; align-items: center; }
.foot nav { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.foot a { color: var(--muted); }
.foot a:hover { color: var(--blue); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .plans { grid-template-columns: repeat(2, 1fr); }
  .addon { grid-template-columns: 1fr; padding: 0 0 28px; gap: 18px; }
  .addon > div, .addon > a { margin: 0 28px; }
  .addon img { min-height: 0; height: 200px; }
}
@media (max-width: 900px) {
  .dock { grid-template-columns: 1fr auto; padding: 0 18px; height: 72px; }
  .nav-links { display: none; }
  .bento > * { grid-column: span 6; }
  .updates { grid-template-columns: 1fr; }
  .updates .previews { position: static; }
  .grid3 { grid-template-columns: 1fr; }
  .shots { grid-template-columns: repeat(4, 62%); overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 44px; }
  .shot { scroll-snap-align: center; }
  .shots-stage { padding: 30px 16px 14px; }
}
@media (max-width: 640px) {
  section { padding: 60px 0 8px; }
  .wrap { padding: 0 16px; }
  .hero { padding-top: 40px; }
  .dock .btn { display: none; }
  .plans { grid-template-columns: 1fr; }
  .modes { grid-template-columns: repeat(5, 1fr); gap: 6px; }
  .mode { aspect-ratio: 1 / 1.05; border-radius: 10px; }
  .mode span { font-size: 10px; padding: 12px 3px 4px; text-align: center; }
  .pause { display: none; }
  .cta .btn { flex: 1 1 100%; }
  .stat b { font-size: 24px; }
  .bento .wide { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .feature-banner-slide, .btn, .card, .mode { transition: none; }
}