:root {
  --ink: #14233a;
  --muted: #5c6e88;
  --line: #e3ebf6;
  --paper: #f3f6fb;
  --white: #fff;
  --coral: #3b7cff;
  --coral-dark: #245ed4;
  --shadow: 0 18px 50px rgba(24, 64, 140, 0.10);
  --radius: 22px;
  --wrap: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, p { margin: 0; }
:focus-visible { outline: 2px solid var(--coral); outline-offset: 3px; }

.wrap { width: min(var(--wrap), calc(100% - 48px)); margin: 0 auto; }
.skip { position: absolute; left: 12px; top: -40px; background: #fff; padding: 8px 12px; z-index: 90; border-radius: 8px; }
.skip:focus { top: 8px; }

.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(243, 246, 251, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(20, 50, 110, 0.06);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.nav-inner { height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; min-width: 160px; }
.brand svg, .brand .logo { width: 40px; height: 40px; border-radius: 12px; flex: none; }
.brand strong { display: block; font-size: 20px; line-height: 1; letter-spacing: 0.08em; }
.brand small { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }
.main-nav { display: flex; align-items: center; gap: 2px; }
.main-nav > a, .sub-toggle {
  text-decoration: none; color: #24344c; padding: 8px 12px; border-radius: 999px;
  background: transparent; border: 0; cursor: pointer; font-size: 15px;
}
.main-nav > a:hover, .sub-toggle:hover { background: rgba(255,255,255,.7); }
.main-nav > a[aria-current="page"], .sub-toggle[aria-current="page"] { background: #fff; font-weight: 700; }
.nav-actions { display: flex; align-items: center; gap: 8px; }
#nav-login {
  background: var(--coral); color: #fff; border: 0; min-height: 40px; padding: 0 16px; border-radius: 999px;
}
#nav-login:hover { background: var(--coral-dark); }
#nav-login,
a[href$="login.html"],
a[href$="store.html"] { display: none !important; }
.menu-btn {
  display: none; width: 42px; height: 42px; border-radius: 12px; border: 1px solid #d5e2f2; background: #fff; cursor: pointer;
}
.menu-btn span { display: block; width: 16px; height: 1.5px; background: var(--ink); margin: 4px auto; }

.has-sub { position: static; }
.has-sub::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 18px;
}
.mega {
  display: none; position: absolute; top: calc(100% + 8px); left: 50%; z-index: 30;
  width: min(960px, calc(100vw - 32px));
  transform: translateX(-50%);
  padding: 18px; background: #fff; border-radius: 20px; box-shadow: var(--shadow);
  grid-template-columns: repeat(4, 1fr); gap: 6px 16px;
}
.mega > div { min-width: 0; }
.has-sub:hover .mega, .has-sub:focus-within .mega, .has-sub.open .mega { display: grid; }
.mega h3 { margin: 2px 8px 8px; font-size: 12px; color: #8aa0bb; letter-spacing: 0.12em; }
.mega a { display: flex; align-items: flex-start; gap: 10px; text-decoration: none; padding: 8px; border-radius: 12px; font-size: 14px; font-weight: 650; }
.mega-logo { width: 32px; height: 32px; flex: none; border-radius: 9px; object-fit: contain; background: #f3f7ff; margin-top: 1px; }
.mega-copy { min-width: 0; line-height: 1.35; white-space: nowrap; }
.mega a .mega-copy > span { display: block; margin-top: 2px; color: var(--muted); font-size: 12px; font-weight: 400; }
.mega a:hover { background: #f3f7ff; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 48px; padding: 0 18px; border-radius: 14px; text-decoration: none; border: 1px solid transparent;
  cursor: pointer; font-weight: 650;
}
.btn-primary { background: var(--coral); color: #fff; }
.btn-primary:hover { background: var(--coral-dark); }
.btn-coral { background: var(--coral); color: #fff; }
.btn-coral:hover { background: var(--coral-dark); }
.btn-line { background: #fff; border-color: #d5e2f2; color: var(--ink); }
.btn-line:hover { border-color: #b7cceb; }
.btn-small { min-height: 48px; padding: 0 16px; font-size: 15px; }

.hero {
  position: relative; overflow: hidden; color: #fff;
  margin: 20px auto 0;
  width: min(var(--wrap), calc(100% - 48px));
  border-radius: 32px;
  box-shadow: 0 28px 60px rgba(24, 72, 180, 0.22);
  background:
    radial-gradient(680px 420px at 100% -8%, rgba(255,255,255,.22), transparent 58%),
    radial-gradient(520px 360px at 108% 42%, rgba(126, 176, 255, .55), transparent 64%),
    linear-gradient(158deg, #9ec4ff 0%, #4b86f6 46%, #1d52cc 100%);
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.hero::before {
  width: 280px; height: 280px;
  right: -72px; top: -148px;
  border: 1.5px solid rgba(255,255,255,.32);
  box-shadow: 0 0 0 26px rgba(255,255,255,.07), 0 0 64px rgba(190, 216, 255, .32);
}
.hero::after {
  width: 168px; height: 168px;
  left: -64px; bottom: -96px;
  border: 1px solid rgba(255,255,255,.26);
  box-shadow: inset 0 0 36px rgba(255,255,255,.12), 0 0 40px rgba(170, 206, 255, .2);
}
.hero-cloud {
  position: absolute; z-index: 0;
  right: 20px; top: 28px;
  width: min(500px, 44%);
  height: calc(100% - 188px);
  pointer-events: none;
}
@media (max-width: 1180px) {
  .hero-cloud { display: none; }
}
.hero-cloud span {
  position: absolute;
  padding: 6px 13px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.42);
  background: rgba(255,255,255,.14);
  color: #fff;
  font-weight: 650;
  letter-spacing: 0.06em;
  line-height: 1.2;
  white-space: nowrap;
  backdrop-filter: blur(8px);
  transform-origin: center;
  will-change: transform;
}
.hero-mark {
  position: absolute;
  z-index: 0;
  right: 40px;
  bottom: 18px;
  margin: 0;
  font-family: "Avenir Next", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: clamp(64px, 8.4vw, 104px);
  font-weight: 650;
  letter-spacing: 0.14em;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(255,255,255,.4);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}
.hero .wrap { width: 100%; }
.hero-layout {
  position: relative; z-index: 1;
  display: flex;
  align-items: center;
  min-height: 460px;
  padding: 64px 52px;
}
.hero-copy { max-width: 680px; }
.eyebrow { color: var(--coral); font-weight: 700; font-size: 13px; letter-spacing: 0.18em; margin-bottom: 16px; }
.hero .eyebrow { color: rgba(255,255,255,.9); }
.hero .btn-coral {
  min-height: 48px; padding: 0 22px; border-radius: 14px; font-size: 15px;
  background: #fff; color: #1c4ec4;
  box-shadow: inset 0 1px 0 #fff, 0 14px 28px rgba(16, 48, 120, 0.24);
}
.hero .btn-coral:hover { background: #f4f8ff; transform: translateY(-1px); }
.hero h1 { font-size: clamp(40px, 4.6vw, 64px); line-height: 1.08; font-weight: 750; letter-spacing: -0.03em; }
.hero .lede { margin-top: 18px; color: rgba(255,255,255,.86); font-size: 18px; max-width: 520px; }
.hero-actions, .card-actions, .page-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hero .btn-line { background: transparent; color: #fff; border-color: rgba(255,255,255,.28); }
.hero .btn-line:hover { border-color: #fff; }
.hero-notes { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.hero-notes span, .tag, .chip {
  border-radius: 999px; border: 1px solid transparent; font-size: 13px;
}
.hero-notes span {
  min-height: 36px; padding: 0 14px; display: inline-flex; align-items: center;
  background: rgba(255,255,255,.14); color: #fff;
  border-color: rgba(255,255,255,.28);
}
.home-cats { padding-top: 28px; }
.home-cats .cats { gap: 18px; }
.home-cats .cat {
  position: relative; overflow: hidden;
  min-height: 176px;
  padding: 24px 22px 22px;
  background: #fff;
  border: 0;
  border-radius: 22px;
  box-shadow: 0 12px 32px rgba(24, 64, 140, 0.06);
  transition: transform .18s ease, box-shadow .18s ease;
}
.home-cats .cat::before {
  content: "";
  position: absolute;
  right: 14px; bottom: 14px;
  width: 46px; height: 46px;
  border-radius: 15px;
  background-color: #eef3ff;
  background-repeat: no-repeat;
  background-position: center;
  background-size: 26px;
  pointer-events: none;
  transition: transform .18s ease, background-color .18s ease;
}
.home-cats .cat:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(24, 64, 140, 0.12);
}
.home-cats .cat:hover::before {
  background-color: #e3edff;
  transform: translateY(-2px);
}
.home-cats .cat:nth-child(1)::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect x='3.2' y='10' width='2.5' height='4' rx='1.25' fill='%238eb4ff'/%3E%3Crect x='7.3' y='7' width='2.5' height='10' rx='1.25' fill='%235b93ff'/%3E%3Crect x='11.4' y='4' width='2.5' height='16' rx='1.25' fill='%233b7cff'/%3E%3Crect x='15.5' y='7' width='2.5' height='10' rx='1.25' fill='%235b93ff'/%3E%3Crect x='19.6' y='10' width='2.2' height='4' rx='1.1' fill='%238eb4ff'/%3E%3C/svg%3E");
}
.home-cats .cat:nth-child(2)::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none'%3E%3Crect x='3.5' y='5' width='17' height='14' rx='3' stroke='%233b7cff' stroke-width='1.7'/%3E%3Ccircle cx='8.2' cy='9.2' r='1.45' fill='%237aa6ff'/%3E%3Cpath d='M4.4 16.2 8.6 12.2l3.1 2.5 2.5-3.1 5.2 4.6' stroke='%233b7cff' stroke-width='1.7' stroke-linejoin='round' stroke-linecap='round'/%3E%3C/svg%3E");
}
.home-cats .cat:nth-child(3)::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%233b7cff' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7 3.8h6.2L18.2 9v11.2a1.2 1.2 0 0 1-1.2 1.2H7a1.2 1.2 0 0 1-1.2-1.2V5a1.2 1.2 0 0 1 1.2-1.2z'/%3E%3Cpath d='M13 3.8V9h5.2M8.6 13h6.2M8.6 16.4h4'/%3E%3C/svg%3E");
}
.home-cats .cat:nth-child(4)::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none'%3E%3Cpath d='M4.8 6.4h14.2a1.8 1.8 0 0 1 1.8 1.8V14a1.8 1.8 0 0 1-1.8 1.8h-8.2L6.2 18.6V15.8H4.8A1.8 1.8 0 0 1 3 14V8.2a1.8 1.8 0 0 1 1.8-1.8z' stroke='%233b7cff' stroke-width='1.7' stroke-linejoin='round'/%3E%3Ccircle cx='8.2' cy='11.2' r='1' fill='%233b7cff'/%3E%3Ccircle cx='12' cy='11.2' r='1' fill='%233b7cff'/%3E%3Ccircle cx='15.8' cy='11.2' r='1' fill='%233b7cff'/%3E%3C/svg%3E");
}
.home-cats .cat b { position: relative; display: block; margin-top: 0; }
.home-cats .cat span { position: relative; display: block; }
.tag { padding: 4px 10px; background: #eef3fb; color: #3d5270; }
.page-hero .eyebrow, .product-hero .eyebrow { color: var(--coral); }

.section { padding: 36px 0 64px; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 18px; }
.section-head h2, .panel h2, .side-card h2, .band h2 { font-size: 32px; line-height: 1.2; font-weight: 750; letter-spacing: -0.03em; }
.section-head p { color: var(--muted); margin-top: 6px; }
.section-head a { color: var(--ink); text-decoration: none; font-weight: 700; border-bottom: 1px solid var(--ink); }

.cats, .reasons, .scenes, .feature-grid, .product-grid, .store-grid { display: grid; gap: 16px; }
.cats, .reasons, .scenes { grid-template-columns: repeat(4, 1fr); }
.product-grid { grid-template-columns: repeat(6, 1fr); }
.store-grid { grid-template-columns: repeat(3, 1fr); }
.feature-grid { grid-template-columns: repeat(4, 1fr); }
.cat, .reason, .scene, .feature, .product-card, .store-card, .panel, .faq, .side-card {
  background: #fff; border: 0; border-radius: var(--radius);
}
.cat, .scene {
  padding: 8px 4px 0; text-decoration: none; display: block; min-height: 0;
  background: transparent; box-shadow: none; border-radius: 0; border-top: 1px solid #d5e3f2;
}
.cat:hover, .scene:hover { transform: none; }
.cat b, .scene b { display: block; margin: 14px 0 6px; font-size: 20px; }
.cat span, .scene span, .muted { color: var(--muted); }
.cat span, .scene span { display: block; font-size: 14px; line-height: 1.6; }
.product-card, .store-card {
  position: relative;
  padding: 22px; display: flex; flex-direction: column; min-height: 250px;
  box-shadow: 0 1px 0 rgba(24, 64, 140, 0.04);
  transition: transform .18s ease, box-shadow .18s ease;
}
.product-card > .kicker,
.store-card > .kicker { display: none; }
.product-card { grid-column: span 2; }
.product-card.feature { background: linear-gradient(145deg, #7eafff 0%, #4c88f8 46%, #2d6be0 100%); color: #fff; }
.product-card:hover, .store-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card-title {
  display: flex; align-items: center; gap: 12px; margin-bottom: 8px;
}
.product-card .card-title h3,
.store-card .card-title h3,
.catalog .product-card .card-title h3 { margin: 0; }
.product-logo {
  width: 44px; height: 44px; flex: none; object-fit: contain; display: block;
  border-radius: 12px; background: #fff; margin: 0;
  box-shadow: 0 8px 16px rgba(24, 64, 140, 0.08);
}
.product-card.feature .product-logo { box-shadow: 0 10px 18px rgba(16, 48, 120, 0.2); }
.product-card h3, .store-card h3 { font-size: 22px; margin: 4px 0 8px; line-height: 1.3; }
.product-card p, .store-card p, .feature p, .reason p { color: var(--muted); }
.product-card.feature p, .product-card.feature .kicker { color: rgba(255,255,255,.68); }
.product-card.feature .tag { background: rgba(255,255,255,.1); color: #fff; }
.product-card.feature .btn-primary { background: #fff; color: #1f5fd0; }
.product-card.feature .btn-line { color: #fff; background: transparent; }
.card-actions { margin-top: auto; padding-top: 18px; flex-direction: column; align-items: flex-start; gap: 2px; }
.card-actions .btn-line { background: transparent; border-color: transparent; padding-left: 0; color: #2f6fe0; }
.home .product-card .tags { display: flex; flex-wrap: wrap; gap: 10px; }
.home .product-card .card-actions .btn-primary,
.catalog .card-actions .btn-primary {
  min-height: 48px; border-radius: 14px; font-size: 15px;
  background: linear-gradient(180deg, #4d86ff 0%, #2a66e8 100%);
  box-shadow: 0 8px 16px rgba(42, 102, 232, 0.22);
}
.home .product-card:not(.feature) .card-actions .btn-primary:hover,
.catalog .card-actions .btn-primary:hover {
  background: linear-gradient(180deg, #3d78f6 0%, #1f56d4 100%);
}
.home .product-card .card-actions .btn-primary { width: 100%; }
.home .product-card.feature .card-actions .btn-primary {
  background: #fff; color: #1f5fd0;
  box-shadow: 0 10px 22px rgba(16, 48, 120, 0.18);
}
.home .product-card.feature .card-actions {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr;
  gap: 8px;
}
.home .product-card.feature .card-actions .btn-primary,
.home .product-card.feature .card-actions .btn-line {
  width: auto;
  min-width: 0;
  padding: 0 8px;
  font-size: 14px;
  white-space: nowrap;
}
.home .product-card.feature .card-more { grid-column: 1 / -1; }
.home .product-card .card-actions .btn-line {
  min-height: 44px; width: 100%; padding: 0 16px; border-radius: 14px; justify-content: center;
  background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.3); color: #fff;
}
.home .product-card .card-actions .btn-line:hover { background: rgba(255,255,255,.22); border-color: #fff; }
.home .product-card:not(.feature) .card-actions .btn-line {
  min-height: 48px;
  background: #fff;
  border: 1px solid #c9daf0;
  color: #1a3f86;
  box-shadow: inset 0 1px 0 #fff;
}
.home .product-card:not(.feature) .card-actions .btn-line:hover {
  background: #f5f9ff;
  border-color: #8eb4f5;
  color: #1646b8;
}
.home .product-card .card-actions.actions-2,
.catalog .product-card .card-actions.actions-2,
.store-card .card-actions.actions-2 {
  display: grid;
  grid-template-columns: 1.35fr .8fr;
  gap: 8px;
}
.home .product-card .card-actions.actions-3,
.catalog .product-card .card-actions.actions-3,
.store-card .card-actions.actions-3 {
  display: grid;
  grid-template-columns: 1.15fr .75fr .75fr;
  gap: 8px;
}
.home .product-card .card-actions.actions-2 .btn,
.home .product-card .card-actions.actions-3 .btn,
.catalog .product-card .card-actions.actions-2 .btn,
.catalog .product-card .card-actions.actions-3 .btn,
.store-card .card-actions.actions-2 .btn,
.store-card .card-actions.actions-3 .btn {
  width: auto;
  min-width: 0;
  padding: 0 8px;
  font-size: 14px;
}
.card-actions.actions-2 > :last-child,
.card-actions.actions-3 > :last-child { grid-column: 1 / -1; }
.home .card-more,
.catalog .card-more {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 4px; padding-top: 14px; width: 100%;
  border-top: 1px solid #e3edf8;
  color: #1c4ec4; font-size: 14px; font-weight: 700; text-decoration: none;
}
.home .card-more::after,
.catalog .card-more::after { content: "→"; font-size: 16px; }
.home .card-more:hover,
.catalog .card-more:hover { color: #163e86; }
.home .product-card.feature .card-more { color: #fff; border-top-color: rgba(255,255,255,.24); }
.home .product-card.feature .card-more:hover { color: #fff; }
.mark {
  width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center;
  background: #e7f0ff; color: var(--coral); margin-bottom: 16px;
}
.mark svg { width: 22px; height: 22px; }
.product-card.feature .mark { background: rgba(255,255,255,.1); color: #fff; }
.kicker { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; color: #8aa0bb; }
.reason, .feature { padding: 22px; }
.reason strong, .feature h3 { display: block; margin-bottom: 8px; font-size: 18px; }
.band {
  position: relative; overflow: hidden;
  margin-top: 8px; color: #fff; border-radius: 28px; padding: 40px 36px;
  display: flex; justify-content: space-between; gap: 20px; align-items: center;
  box-shadow: 0 18px 40px rgba(24, 72, 180, 0.16);
  background:
    radial-gradient(280px 140px at 0% 120%, rgba(255,255,255,.2), transparent 68%),
    radial-gradient(460px 200px at 96% -20%, rgba(255,255,255,.34), transparent 62%),
    linear-gradient(155deg, #8eb6ff 0%, #3f7cf3 46%, #1c4ec4 100%);
}
.band::before,
.band::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.band::before {
  width: 240px; height: 240px;
  left: -96px; top: -150px;
  border: 1.5px solid rgba(255,255,255,.32);
  box-shadow: 0 0 0 22px rgba(255,255,255,.07), 0 0 48px rgba(190, 216, 255, .28);
}
.band::after {
  width: 150px; height: 150px;
  right: 210px; bottom: -92px;
  border: 1px solid rgba(255,255,255,.26);
  box-shadow: inset 0 0 36px rgba(255,255,255,.12), 0 0 40px rgba(170, 206, 255, .22);
}
.band > * { position: relative; z-index: 1; }
.band p { color: rgba(255,255,255,.86); margin-top: 8px; max-width: 640px; }
.band .btn-coral {
  min-height: 48px; padding: 0 22px; border-radius: 14px; flex: none;
  background: #fff; color: #1c4ec4;
  box-shadow: inset 0 1px 0 #fff, 0 12px 24px rgba(16, 48, 120, 0.22);
}
.band .btn-coral:hover { background: #f4f8ff; }
.band .btn-line { background: transparent; color: #fff; border-color: rgba(255,255,255,.45); min-height: 52px; padding: 0 22px; border-radius: 16px; }

.page-hero { padding: 28px 0 8px; }
.page-hero h1, .product-hero h1 { font-size: clamp(36px, 4vw, 56px); line-height: 1.12; font-weight: 750; letter-spacing: -0.03em; }
.lede { margin-top: 12px; color: var(--muted); font-size: 17px; max-width: 640px; }
.crumb { color: #8aa0bb; font-size: 13px; margin-bottom: 12px; }
.crumb a { color: #8aa0bb; text-decoration: none; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chip { padding: 8px 14px; background: #fff; cursor: pointer; border: 0; color: var(--ink); }
.chip.is-on { background: var(--ink); color: #fff; }
.help-grid { display: grid; gap: 10px; }
.faq { padding: 2px 22px; }
.faq summary { cursor: pointer; font-weight: 700; padding: 16px 0; }
.faq p { color: var(--muted); margin: 0 0 16px; }
.help-tools { margin-top: 16px; max-width: 480px; }
.help-tools input, .field input, .field textarea {
  width: 100%; border: 1px solid #d5e3f3; border-radius: 14px; background: #fff; padding: 13px 14px;
}
.help-tools input:focus, .field input:focus, .field textarea:focus {
  outline: none; border-color: #8eb6ff; box-shadow: 0 0 0 4px rgba(59, 124, 255, 0.14);
}
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.field label { font-size: 13px; font-weight: 700; }
.form-result, .empty { border-radius: 12px; background: #eef4ff; padding: 12px 14px; }
.login-grid, .biz-grid, .contact-grid, .split, .product-hero { display: grid; gap: 20px; align-items: start; }
.login-grid, .biz-grid, .contact-grid, .split, .product-hero { grid-template-columns: 1.2fr 0.8fr; }
.panel, .side-card { padding: 26px; }
.tabs { display: inline-flex; gap: 4px; margin-bottom: 16px; padding: 4px; background: #eef3fb; border-radius: 999px; }
.tabs button { border: 0; background: transparent; border-radius: 999px; padding: 8px 14px; cursor: pointer; color: #6d625c; }
.tabs button.is-on { background: #fff; color: var(--ink); font-weight: 700; }
.qr-row { display: flex; gap: 12px; flex-wrap: wrap; }
.qr-card {
  width: 150px; text-align: center; font-size: 13px; color: var(--muted);
  background: #f3f7ff; border-radius: 18px; padding: 12px;
}
.qr-card img, .qr-placeholder { width: 112px; height: 112px; margin: 0 auto 8px; border-radius: 12px; background: #fff; object-fit: cover; }
.qr-placeholder { border: 1px dashed #c9d8ee; display: flex; align-items: center; justify-content: center; line-height: 1.4; padding: 8px; }
.site-footer {
  position: relative; overflow: hidden;
  color: #d5e4f7;
  width: min(var(--wrap), calc(100% - 48px));
  margin: 8px auto 16px; padding: 52px 32px 22px; border-radius: 32px;
  background:
    radial-gradient(7px 7px at 24% 26%, rgba(255,255,255,.75), transparent 72%),
    radial-gradient(5px 5px at 62% 14%, rgba(255,255,255,.5), transparent 72%),
    radial-gradient(4px 4px at 78% 64%, rgba(255,255,255,.38), transparent 72%),
    radial-gradient(560px 320px at 104% -12%, rgba(146, 190, 255, .5), transparent 60%),
    radial-gradient(460px 300px at -4% 112%, rgba(96, 156, 240, .38), transparent 64%),
    #12356b;
}
.site-footer::before,
.site-footer::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.site-footer::before {
  width: 220px; height: 220px;
  right: -96px; top: -128px;
  border: 1.5px solid rgba(255,255,255,.34);
  box-shadow: 0 0 0 22px rgba(255,255,255,.07), 0 0 64px rgba(160, 198, 255, .34);
}
.site-footer::after {
  width: 132px; height: 132px;
  left: 28px; bottom: 58px;
  border: 1.5px solid rgba(255,255,255,.22);
  box-shadow: 0 0 0 16px rgba(255,255,255,.045), inset 0 0 24px rgba(186, 214, 255, .18);
}
.site-footer .wrap { position: relative; z-index: 1; width: 100%; }
.footer-grid { display: grid; grid-template-columns: 1.45fr 1fr 0.85fr 1.15fr; gap: 48px 40px; align-items: start; }
.footer-brand .brand { flex-direction: column; align-items: flex-start; gap: 14px; min-width: 0; }
.footer-brand .brand .logo { width: 56px; height: 56px; border-radius: 16px; }
.footer-brand .brand strong { display: none; }
.footer-brand .brand small { margin-top: 0; font-size: 13px; letter-spacing: 0.02em; line-height: 1.5; color: #c5d6ee; }
.footer-brand > p { margin: 18px 0 0; max-width: 260px; line-height: 1.85; color: #c5d6ee; }
.site-footer h3 { color: #fff; font-size: 13px; margin: 6px 0 16px; letter-spacing: 0.14em; }
.site-footer br { display: none; }
.site-footer a { color: #d5e4f7; text-decoration: none; display: block; margin: 0 0 12px; line-height: 1.5; }
.site-footer .brand { display: flex; }
.site-footer a:hover { color: #fff; }
.site-footer a[href^="tel:"] { display: inline; margin: 0; color: #fff; letter-spacing: 0.04em; }
.site-footer .brand strong { color: #fff; }
.site-footer .footer-grid > div:not(.footer-brand) > p { margin: 0 0 16px; font-size: 14px; line-height: 1.75; }
.legal a { display: inline; margin: 0; }
.site-footer .qr-card { background: rgba(255,255,255,.06); color: #d5e4f7; }
.site-footer .qr-placeholder { background: transparent; color: #d5e4f7; border-color: rgba(255,255,255,.25); }
.legal { border-top: 1px solid rgba(255,255,255,.08); margin-top: 28px; padding-top: 14px; font-size: 13px; color: #9eb4d4; }
.legal a { color: #9eb4d4; }
.steps { margin: 10px 0 0; padding-left: 18px; color: var(--muted); }
.steps li { margin: 8px 0; }
.qr-box {
  position: relative; width: 220px; height: 220px; margin: 8px auto 12px;
  background: #fff; border-radius: 24px; display: flex; align-items: center; justify-content: center;
  box-shadow: inset 0 0 0 10px #eef3fb;
}
.qr-box img { width: 176px; height: 176px; object-fit: contain; }
.qr-mask {
  position: absolute; inset: 0; border-radius: 24px; background: rgba(255,255,255,.94);
  display: none; align-items: center; justify-content: center;
}
.qr-box.is-expired .qr-mask, .qr-box.is-loading .qr-mask { display: flex; }
.qr-box.is-loading #wx-refresh { display: none; }
.qr-box.is-loading .qr-mask::after { content: "二维码加载中"; color: var(--muted); font-size: 14px; }
.price-pending {
  display: inline-flex; margin-top: 12px; padding: 4px 10px; border-radius: 999px;
  background: #e7f0ff; color: var(--coral); font-weight: 700; font-size: 13px;
}
.account-line { margin: 8px 0; }
.panel h2, .side-card h2 { margin-bottom: 8px; }

.modal[hidden] { display: none; }
.modal { position: fixed; inset: 0; z-index: 80; display: grid; place-items: center; padding: 20px; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(16, 36, 72, .46); backdrop-filter: blur(10px); }
.modal-dialog {
  position: relative; width: min(440px, 100%); max-height: min(720px, calc(100vh - 40px)); overflow: auto;
  background: #fff; border-radius: 28px; padding: 28px 26px 22px;
  box-shadow: 0 30px 80px rgba(20, 48, 110, .28);
}
.modal-close {
  position: absolute; top: 14px; right: 14px; width: 36px; height: 36px; border: 0; border-radius: 50%;
  background: #eef3fb; cursor: pointer; font-size: 20px; line-height: 1;
}
.modal-kicker { color: var(--coral); font-size: 12px; font-weight: 700; letter-spacing: 0.14em; }
.qr-dialog { text-align: center; }
.qr-dialog img { width: 240px; height: 240px; margin: 16px auto 8px; }
.dock { position: fixed; right: 20px; bottom: 28px; z-index: 45; display: flex; flex-direction: column; gap: 12px; }
.dock-btn {
  width: 48px; height: 48px; min-height: 48px; padding: 0; border: 0; border-radius: 50%;
  display: grid; place-items: center; cursor: pointer;
  background: #fff; color: #2457d6;
  box-shadow: 0 10px 24px rgba(24, 64, 140, 0.16);
}
.dock-btn svg { width: 22px; height: 22px; display: block; }
.dock-btn:hover, .dock-btn[aria-expanded="true"] { background: var(--coral); color: #fff; }
.dock-pop {
  position: absolute; right: 62px; bottom: 0; width: 176px; padding: 14px 14px 12px;
  background: #fff; border-radius: 18px; text-align: center;
  box-shadow: 0 16px 40px rgba(24, 64, 140, 0.16);
}
.dock-pop[hidden] { display: none; }
.dock-pop img { width: 128px; height: 128px; margin: 0 auto 8px; border-radius: 8px; }
.dock-pop p { font-size: 13px; color: var(--muted); }
.dock-pop a { display: inline-block; margin-top: 6px; color: var(--coral); font-size: 13px; font-weight: 700; text-decoration: none; }
.modal-dialog h2 { font-size: 28px; letter-spacing: -0.03em; margin: 6px 0 8px; }
.modal-dialog .tabs { display: flex; width: 100%; }
.modal-dialog .tabs button { flex: 1; }
body.modal-open { overflow: hidden; }

.help-page .help-banner {
  position: relative; overflow: hidden;
  width: min(var(--wrap), calc(100% - 48px));
  margin: 20px auto 0;
  padding: 56px 0 40px;
  border-radius: 32px;
  color: #fff;
  box-shadow: 0 28px 60px rgba(24, 72, 180, 0.22);
  background:
    radial-gradient(280px 160px at 0% 120%, rgba(255,255,255,.18), transparent 70%),
    radial-gradient(520px 240px at 92% 0%, rgba(255,255,255,.34), transparent 62%),
    linear-gradient(155deg, #8eb6ff 0%, #3f7cf3 46%, #1c4ec4 100%);
}
.help-page .help-banner .wrap { position: relative; z-index: 1; width: auto; margin: 0; padding: 0 44px; }
.help-page .help-banner h1, .help-page .help-banner .crumb { color: #fff; }
.help-page .help-banner .lede { color: rgba(255,255,255,.86); }
.help-page .help-tools { max-width: 560px; }
.help-page .help-tools input { border: 0; background: #fff; box-shadow: 0 10px 24px rgba(18, 48, 110, 0.12); }
.help-layout { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.7fr); gap: 28px; align-items: start; }
.help-group { margin-bottom: 28px; }
.help-group h2 { font-size: 22px; margin: 0 0 14px; }
.help-page .faq { padding: 0 22px; margin: 0 0 12px; }
.help-page .faq summary {
  list-style: none; cursor: pointer; font-weight: 700; padding: 18px 0;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.help-page .faq summary::-webkit-details-marker { display: none; }
.help-page .faq summary::after {
  content: "+"; flex: none; width: 28px; height: 28px; border-radius: 50%;
  background: #e8f1ff; color: #1f5fd0; display: grid; place-items: center; font-weight: 500;
}
.help-page .faq[open] summary::after { content: "–"; }
.help-page .faq p { margin: 0 0 18px; line-height: 1.75; }
.help-aside { position: sticky; top: 96px; }
.help-page .empty { margin-bottom: 16px; }

.enterprise-page .enterprise-banner {
  position: relative; overflow: hidden;
  width: min(var(--wrap), calc(100% - 48px));
  margin: 20px auto 0;
  padding: 56px 0 40px;
  border-radius: 32px;
  color: #fff;
  box-shadow: 0 28px 60px rgba(24, 72, 180, 0.22);
  background:
    radial-gradient(280px 160px at 0% 120%, rgba(255,255,255,.18), transparent 70%),
    radial-gradient(520px 240px at 92% 0%, rgba(255,255,255,.34), transparent 62%),
    linear-gradient(155deg, #8eb6ff 0%, #3f7cf3 46%, #1c4ec4 100%);
}
.help-page .help-banner::before,
.help-page .help-banner::after,
.about-page .about-banner::before,
.about-page .about-banner::after,
.catalog-page .page-hero::before,
.catalog-page .page-hero::after,
.sitemap-page .page-hero::before,
.sitemap-page .page-hero::after,
.enterprise-page .enterprise-banner::before,
.enterprise-page .enterprise-banner::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.help-page .help-banner::before,
.about-page .about-banner::before,
.catalog-page .page-hero::before,
.sitemap-page .page-hero::before,
.enterprise-page .enterprise-banner::before {
  width: 260px; height: 260px;
  right: -70px; top: -150px;
  border: 1.5px solid rgba(255,255,255,.3);
  box-shadow: 0 0 0 24px rgba(255,255,255,.06), 0 0 56px rgba(190, 216, 255, .3);
}
.help-page .help-banner::after,
.about-page .about-banner::after,
.catalog-page .page-hero::after,
.sitemap-page .page-hero::after,
.enterprise-page .enterprise-banner::after {
  width: 170px; height: 170px;
  left: 46%; bottom: -110px;
  border: 1px solid rgba(255,255,255,.22);
  box-shadow: inset 0 0 36px rgba(255,255,255,.1);
}
.enterprise-page .enterprise-banner .wrap { position: relative; z-index: 1; width: auto; margin: 0; padding: 0 44px; }
.enterprise-page .enterprise-banner h1,
.enterprise-page .enterprise-banner .crumb { color: #fff; }
.enterprise-page .enterprise-banner .lede { color: rgba(255,255,255,.86); max-width: 680px; }
.enterprise-points { grid-template-columns: repeat(4, 1fr); }
.enterprise-page .feature {
  min-height: 168px;
  background: linear-gradient(180deg, #f4f8ff, #fff 60%);
  box-shadow: 0 12px 32px rgba(24, 64, 140, 0.06);
  transition: transform .18s ease, box-shadow .18s ease;
}
.enterprise-page .feature:hover,
.enterprise-qr:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(24, 64, 140, 0.12);
}
.enterprise-page .feature .mark,
.enterprise-qr .mark {
  transition: background .18s ease, transform .18s ease;
}
.enterprise-page .feature:hover .mark,
.enterprise-qr:hover .mark {
  background: #dce8ff;
  transform: translateY(-2px);
}
.enterprise-qr {
  width: min(420px, 100%);
  margin: 0 auto;
  padding: 36px 28px 28px;
  background: #fff;
  border-radius: 28px;
  text-align: center;
  box-shadow: 0 16px 40px rgba(24, 64, 140, 0.08);
  transition: transform .18s ease, box-shadow .18s ease;
}
.enterprise-qr .mark { margin-left: auto; margin-right: auto; }
.enterprise-qr .kicker { color: var(--coral); margin-bottom: 8px; }
.enterprise-qr h2 { font-size: 28px; margin-bottom: 8px; }
.enterprise-qr p { color: var(--muted); }
.enterprise-qr img { width: 180px; height: 180px; margin: 22px auto 10px; border-radius: 12px; }
.enterprise-qr span { color: var(--muted); font-size: 14px; }

#contact { scroll-margin-top: 88px; }
.about-page .about-banner {
  position: relative; overflow: hidden;
  width: min(var(--wrap), calc(100% - 48px));
  margin: 20px auto 0;
  padding: 56px 0 40px;
  border-radius: 32px;
  color: #fff;
  box-shadow: 0 28px 60px rgba(24, 72, 180, 0.22);
  background:
    radial-gradient(280px 160px at 0% 120%, rgba(255,255,255,.18), transparent 70%),
    radial-gradient(520px 240px at 92% 0%, rgba(255,255,255,.34), transparent 62%),
    linear-gradient(155deg, #8eb6ff 0%, #3f7cf3 46%, #1c4ec4 100%);
}
.about-page .about-banner .wrap { position: relative; z-index: 1; width: auto; margin: 0; padding: 0 44px; }
.about-page .about-banner h1, .about-page .about-banner .crumb { color: #fff; }
.about-page .about-banner .lede { color: rgba(255,255,255,.86); max-width: 640px; }
.about-page .panel {
  box-shadow: 0 12px 32px rgba(24, 64, 140, 0.06);
  transition: transform .18s ease, box-shadow .18s ease;
}
.about-page .panel:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(24, 64, 140, 0.12);
}
.about-page .panel .kicker { color: var(--coral); margin-bottom: 8px; }
.about-page .panel h2 { margin-bottom: 12px; }
.about-page .panel p + p { margin-top: 12px; }
.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.value {
  background: #fff; border-radius: 22px; padding: 24px 22px 22px; min-height: 220px;
  box-shadow: 0 12px 32px rgba(24, 64, 140, 0.06);
  transition: transform .18s ease, box-shadow .18s ease;
}
.value:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(24, 64, 140, 0.12);
}
.value .mark { transition: background .18s ease, transform .18s ease; }
.value:hover .mark { background: #dce8ff; transform: translateY(-2px); }
.value-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.value-top .mark { margin: 0; }
.value .num { color: var(--coral); font-weight: 750; letter-spacing: 0.08em; }
.about-page .meta-line { display: flex; align-items: flex-start; gap: 8px; }
.about-page .meta-line svg { width: 18px; height: 18px; flex: none; margin-top: 4px; color: var(--coral); }
.about-page .meta-line a { color: inherit; text-decoration: none; }
.about-page .meta-line a:hover { color: var(--coral-dark); }
.value h3 { font-size: 22px; margin-bottom: 10px; }
.value p { color: var(--muted); }

.sitemap-page .page-hero,
.catalog-page .page-hero {
  position: relative; overflow: hidden;
  margin: 20px auto 0;
  width: min(var(--wrap), calc(100% - 48px));
  padding: 56px 44px 40px;
  border-radius: 32px;
  color: #fff;
  box-shadow: 0 28px 60px rgba(24, 72, 180, 0.22);
  background:
    radial-gradient(280px 160px at 0% 120%, rgba(255,255,255,.18), transparent 70%),
    radial-gradient(520px 240px at 92% 0%, rgba(255,255,255,.34), transparent 62%),
    linear-gradient(155deg, #8eb6ff 0%, #3f7cf3 46%, #1c4ec4 100%);
}
.sitemap-page .page-hero .wrap,
.catalog-page .page-hero .wrap { position: relative; z-index: 1; width: 100%; }
.sitemap-page .page-hero h1, .sitemap-page .crumb,
.catalog-page .page-hero h1, .catalog-page .crumb { color: #fff; }
.sitemap-page .lede,
.catalog-page .lede { color: rgba(255,255,255,.88); font-size: 18px; max-width: 680px; }
.sitemap-page .crumb a { color: rgba(255,255,255,.78); text-decoration: none; }
.sitemap-page .crumb a:hover { color: #fff; }
.sitemap-grid { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 16px; align-items: start; }
.sitemap-card {
  background: #fff; border-radius: 22px; padding: 26px 26px 18px;
  box-shadow: 0 12px 32px rgba(24, 64, 140, 0.06);
}
.sitemap-card h2 { font-size: 22px; margin-bottom: 14px; }
.sitemap-card h3 { font-size: 13px; letter-spacing: 0.12em; color: #6d84a6; margin: 16px 0 0; }
.sitemap-card h3:first-of-type { margin-top: 4px; }
.sitemap-card > a,
.sitemap-row {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 13px 0; border-top: 1px solid #e8f0fa;
  color: var(--ink); text-decoration: none; font-weight: 650;
}
.sitemap-row a { color: inherit; text-decoration: none; font-weight: 650; }
.sitemap-card > a:hover,
.sitemap-row a:hover { color: #1c4ec4; }
.sitemap-site {
  flex: none;
  padding: 4px 10px; border-radius: 999px;
  background: #eef3ff; color: #1c4ec4;
  font-size: 12px; font-weight: 650; letter-spacing: 0.01em;
}
.sitemap-site:hover { background: #e3edff; color: #163e86; }
.sitemap-products { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 48px; }
.legal-layout { display: grid; grid-template-columns: 248px minmax(0, 1fr); gap: 16px; align-items: start; }
.legal-side { position: sticky; top: 88px; display: grid; gap: 16px; }
.legal-toc, .legal-switch {
  background: #fff; border-radius: 22px; padding: 18px 18px 8px;
  box-shadow: 0 12px 32px rgba(24, 64, 140, 0.06);
}
.legal-toc p, .legal-switch p {
  margin: 0 0 8px; font-size: 13px; letter-spacing: 0.12em; color: #6d84a6; font-weight: 700;
}
.legal-toc a, .legal-switch a {
  display: block; padding: 10px 0; border-top: 1px solid #e8f0fa;
  color: #24324a; text-decoration: none; font-size: 14px; line-height: 1.45;
}
.legal-toc a:hover, .legal-switch a:hover { color: #1c4ec4; }
.legal-switch a[aria-current="page"] { color: #1c4ec4; font-weight: 700; }
.legal-doc {
  max-width: none; background: #fff; border-radius: 22px;
  padding: 36px 40px 40px; box-shadow: 0 12px 32px rgba(24, 64, 140, 0.06);
}
.legal-doc h2 { font-size: 20px; margin: 28px 0 8px; scroll-margin-top: 96px; }
.legal-doc p, .legal-doc li { color: #3d5270; line-height: 1.85; font-size: 15px; }
.legal-doc ul { margin: 8px 0 0; padding-left: 1.2em; }
.legal-doc li + li { margin-top: 6px; }
.legal-doc .legal-meta { margin: 4px 0 0; color: #6d84a6; font-size: 14px; }
.legal-doc a { color: #1c4ec4; }
.legal-doc .legal-note { background: #f4f8ff; border-radius: 16px; padding: 14px 16px; margin-top: 18px; }
.buy-list { display: grid; gap: 12px; }
.buy-row {
  display: grid; grid-template-columns: 56px minmax(0, 1fr) auto;
  gap: 18px; align-items: center;
  background: #fff; border-radius: 20px; padding: 18px 22px;
  box-shadow: 0 12px 32px rgba(24, 64, 140, 0.06);
  transition: transform .18s ease, box-shadow .18s ease;
}
.buy-row:hover { transform: translateY(-3px); box-shadow: 0 18px 36px rgba(24, 64, 140, 0.12); }
.buy-row .product-logo { width: 56px; height: 56px; border-radius: 16px; }
.buy-row h2 { margin: 0; font-size: 18px; line-height: 1.3; }
.buy-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.buy-meta span {
  display: inline-flex; align-items: center; min-height: 24px; padding: 0 8px;
  border-radius: 999px; background: #eef3ff; color: #1c4ec4;
  font-size: 12px; font-weight: 650;
}
.buy-row .btn { min-width: 112px; }
.buy-soon, .buy-note {
  background: #fff; border-radius: 20px; padding: 18px 22px;
  box-shadow: 0 12px 32px rgba(24, 64, 140, 0.06);
}
.buy-soon { color: #6d84a6; text-align: center; }
.buy-note { color: #3d5270; line-height: 1.7; }
.buy-note a { color: #1c4ec4; }
.catalog-page .chip {
  min-height: 44px; padding: 0 20px; border-radius: 999px;
  background: rgba(255,255,255,.14); color: #fff;
  border: 1px solid rgba(255,255,255,.28);
  backdrop-filter: blur(8px);
}
.catalog-page .chip.is-on {
  background: #fff; color: #1c4ec4; border-color: #fff;
  box-shadow: 0 8px 18px rgba(16, 48, 120, 0.16);
}
.catalog .product-card[hidden] { display: none; }
.catalog .product-card {
  position: relative;
  overflow: hidden;
  grid-column: auto;
  min-height: 360px;
  padding: 30px 26px 24px;
  border-radius: 26px;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(180deg, rgba(255,255,255,.9), rgba(226, 236, 252, .9)) border-box;
  border: 1px solid #e4edf8;
  box-shadow: 0 16px 40px rgba(24, 64, 140, 0.07);
}
.catalog .product-card::before {
  content: "";
  position: absolute; left: 0; right: 0; top: 0; height: 4px;
  background: linear-gradient(90deg, #8eb6ff, #2f6be0);
}
.catalog .product-card[data-cat="image"]::before { background: linear-gradient(90deg, #7ec8ff, #3b7cff); }
.catalog .product-card[data-cat="file"]::before { background: linear-gradient(90deg, #6aa2ff, #2457d6); }
.catalog .product-card[data-cat="data"]::before { background: linear-gradient(90deg, #9eb4ff, #355ed0); }
.catalog .product-card:hover { transform: translateY(-6px); box-shadow: 0 24px 50px rgba(24, 64, 140, 0.14); }
.catalog .product-card h3 { font-size: 24px; margin: 6px 0 10px; letter-spacing: -0.02em; }
.catalog .product-card p { line-height: 1.75; }
.catalog .mark {
  width: 54px; height: 54px; border-radius: 18px; margin-bottom: 18px;
  background: linear-gradient(180deg, #f4f8ff, #e5efff);
  box-shadow: inset 0 1px 0 #fff, 0 8px 16px rgba(47, 107, 224, 0.08);
}
.catalog .kicker { color: #5d7eae; letter-spacing: 0.12em; }
.catalog .product-card .tags { display: flex; flex-wrap: wrap; gap: 10px; }
.catalog .tag { background: #f4f8ff; color: #2a4f86; border-radius: 999px; padding: 5px 12px; }
.catalog .card-actions {
  display: grid;
  grid-template-columns: 1fr;
  align-items: stretch;
  gap: 10px;
  margin-top: auto;
  padding-top: 22px;
}
.catalog .product-card[data-cat="av"] .card-actions {
  grid-template-columns: 1.25fr 1fr 1fr;
}
.catalog .product-card[data-cat="av"] .card-more { grid-column: 1 / -1; }
.catalog .product-card[data-cat="av"] .card-actions .btn:nth-child(-n+3) {
  width: auto;
  min-width: 0;
  padding: 0 8px;
  font-size: 14px;
}
.catalog .card-actions .btn,
.catalog .card-actions .btn-small {
  min-height: 48px;
  padding: 0 16px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 650;
  line-height: 1.25;
  width: 100%;
  flex: none;
  white-space: nowrap;
  text-align: center;
}
.catalog .card-actions .btn-primary {
  background: linear-gradient(180deg, #4d86ff 0%, #2a66e8 100%);
  box-shadow: 0 8px 16px rgba(42, 102, 232, 0.22);
}
.catalog .card-actions .btn-primary:hover {
  background: linear-gradient(180deg, #3d78f6 0%, #1f56d4 100%);
  transform: none;
}
.catalog .card-actions .btn-line {
  background: #fff;
  border: 1px solid #c9daf0;
  color: #1a3f86;
  padding-left: 16px;
  box-shadow: inset 0 1px 0 #fff, 0 6px 14px rgba(24, 64, 140, 0.06);
}
.catalog .card-actions .btn-line:hover {
  background: #f5f9ff;
  border-color: #8eb4f5;
  color: #1646b8;
}

.product-page .page-hero { background: transparent; padding: 16px 0 0; }
.product-page .product-hero {
  position: relative; overflow: hidden;
  margin: 0 auto; padding: 44px 44px;   border-radius: 32px; color: #fff; align-items: stretch;
  box-shadow: 0 28px 60px rgba(24, 72, 180, 0.16);
  background:
    radial-gradient(420px 220px at 92% 0%, rgba(255,255,255,.32), transparent 60%),
    linear-gradient(155deg, #8eb6ff 0%, #3f7cf3 46%, #1c4ec4 100%);
}
.product-page .product-hero::before,
.product-page .product-hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.product-page .product-hero::before {
  width: 210px; height: 210px;
  left: -40px; top: -86px;
  border: 1.5px solid rgba(255,255,255,.42);
  box-shadow: 0 0 0 20px rgba(255,255,255,.08), 0 0 48px rgba(255,255,255,.22);
}
.product-page .product-hero::after {
  width: 150px; height: 150px;
  left: 22%; bottom: -96px;
  border: 1px solid rgba(255,255,255,.22);
  box-shadow: inset 0 0 32px rgba(255,255,255,.1);
}
.product-page .product-hero > * { position: relative; z-index: 1; }
.hero-logo {
  width: 72px; height: 72px; object-fit: contain; display: block;
  border-radius: 20px; background: #fff; margin: 0;
  box-shadow: 0 12px 24px rgba(16, 48, 120, 0.16);
}
.product-page .product-hero > div:first-child {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  column-gap: 18px;
  align-items: center;
}
.product-page .product-hero .crumb { grid-column: 1 / -1; grid-row: 1; margin-bottom: 22px; }
.product-page .product-hero .hero-logo { grid-column: 1; grid-row: 2 / span 2; align-self: center; }
.product-page .product-hero h1 {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.15;
}
.product-page .product-hero .tags { grid-column: 2; grid-row: 3; margin: 8px 0 0; }
.product-page .product-hero .tag {
  display: inline-flex; align-items: center; min-height: 26px;
  padding: 0 10px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,.32);
  background: rgba(255,255,255,.14);
  font-size: 12px; font-weight: 650; letter-spacing: 0.04em;
}
.product-page .product-hero .lede {
  grid-column: 1 / -1;
  grid-row: 4;
  margin: 22px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.7;
}
.product-page .product-hero .page-actions { grid-column: 1 / -1; grid-row: 5; margin-top: 24px; gap: 12px; }
.scene-logo {
  width: 36px; height: 36px; object-fit: contain; display: block;
  border-radius: 10px; background: #fff; margin-top: 12px;
}
.product-page .product-hero h1 { color: #fff; }
.product-page .product-hero .lede { color: rgba(255,255,255,.84); }
.product-page .product-hero .eyebrow { color: rgba(255,255,255,.92); }
.product-page .product-hero .crumb, .product-page .product-hero .crumb a { color: rgba(255,255,255,.78); }
.product-page .product-hero .tags { display: flex; flex-wrap: wrap; gap: 10px; }
.product-page .product-hero .tag { background: rgba(255,255,255,.16); color: #fff; }
.product-page .page-actions .btn { min-height: 48px; padding: 0 22px; border-radius: 14px; }
.product-page .product-hero .btn-primary { background: #fff; color: #1f5fd0; box-shadow: 0 10px 22px rgba(16, 48, 120, 0.18); }
.product-page .product-hero .btn-primary:hover { background: #f4f8ff; }
.product-page .product-hero .btn-line { background: transparent; color: #fff; border-color: rgba(255,255,255,.45); }
.product-page .product-hero .btn-line:hover { border-color: #fff; background: rgba(255,255,255,.1); }
.product-page .product-hero .side-card {
  position: relative; overflow: hidden;
  color: #16325c; border-radius: 22px; padding: 28px 24px;
  display: flex; flex-direction: column; justify-content: center; margin: 0;
  background: linear-gradient(165deg, rgba(255,255,255,.78) 0%, rgba(255,255,255,.46) 58%, rgba(226, 238, 255, .38) 100%);
  border: 1px solid rgba(255,255,255,.72);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.95),
    inset 0 -18px 32px rgba(255,255,255,.18),
    0 18px 40px rgba(18, 48, 110, 0.16);
  backdrop-filter: blur(16px) saturate(1.35);
  -webkit-backdrop-filter: blur(16px) saturate(1.35);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.product-page .product-hero .side-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(140px 90px at 16% 0%, rgba(255,255,255,.8), transparent 70%),
    linear-gradient(125deg, rgba(255,255,255,.28), transparent 46%);
  pointer-events: none;
}
.product-page .product-hero .side-card > * { position: relative; z-index: 1; }
.product-page .product-hero .side-card:hover {
  transform: translateY(-4px);
  background: linear-gradient(165deg, rgba(255,255,255,.88) 0%, rgba(255,255,255,.56) 58%, rgba(226, 238, 255, .46) 100%);
  box-shadow:
    inset 0 1px 0 #fff,
    inset 0 -18px 32px rgba(255,255,255,.22),
    0 22px 44px rgba(18, 48, 110, 0.22);
}
.product-page .product-hero .side-card .kicker { color: #245ed4; }
.product-page .product-hero .side-card h2 { font-size: 26px; line-height: 1.3; overflow-wrap: anywhere; margin: 8px 0 10px; }
.product-page .product-hero .side-card h2 a { color: #1747b8; text-decoration: none; }
.product-page .product-hero .side-card h2 a::after { content: " ↗"; font-size: .72em; }
.product-page .product-hero .side-card h2 a:hover { color: #0f3288; }
.product-page .product-hero .side-card p { color: #3d5270; }
.product-page .feature-grid { grid-template-columns: repeat(3, 1fr); counter-reset: feat; }
.product-page .feature {
  position: relative; overflow: hidden;
  padding: 26px 24px 24px; min-height: 168px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(24, 64, 140, 0.05);
}
.product-page .feature::before {
  counter-increment: feat;
  content: counter(feat, decimal-leading-zero);
  display: block;
  margin-bottom: 16px;
  color: var(--coral);
  font-weight: 750;
  letter-spacing: 0.08em;
}
.product-page .feature:nth-child(1) { background: linear-gradient(180deg, #f3f8ff, #fff 58%); }
.product-page .feature:nth-child(2) { background: linear-gradient(180deg, #f7fbff, #fff 62%); }
.product-page .feature:nth-child(3) { background: linear-gradient(180deg, #eef4ff, #fff 54%); }
.product-page .feature h3 { font-size: 20px; margin-bottom: 8px; }
.product-page .related .scenes { gap: 16px; grid-template-columns: repeat(3, 1fr); }
.product-page .related .scene {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  grid-template-areas: "logo name" "desc desc" "more more";
  column-gap: 14px; row-gap: 2px; align-items: center;
  background: #fff; border: 0; border-radius: 22px;
  padding: 20px 22px 16px; min-height: 0;
  box-shadow: 0 12px 32px rgba(24, 64, 140, 0.06);
  transition: transform .18s ease, box-shadow .18s ease;
}
.product-page .related .scene-logo {
  grid-area: logo; width: 52px; height: 52px; margin: 0;
  border-radius: 14px; align-self: center;
  box-shadow: 0 8px 16px rgba(24, 64, 140, 0.08);
}
.product-page .related .scene b {
  grid-area: name; margin: 0; font-size: 18px; line-height: 1.35;
}
.product-page .related .scene span {
  grid-area: desc; display: block; margin: 10px 0 0; padding: 0;
  background: none; border-radius: 0; color: var(--muted);
  font-size: 14px; font-weight: 400; letter-spacing: 0; line-height: 1.65;
}
.product-page .related .scene::after {
  grid-area: more;
  content: "查看详情 →";
  margin-top: 12px; padding-top: 12px;
  border-top: 1px solid #e6eef8;
  color: #1c4ec4;
  font-size: 14px;
  font-weight: 700;
}
.product-page[data-tone="image"] .product-hero {
  background:
    radial-gradient(420px 220px at 92% 0%, rgba(255,255,255,.32), transparent 60%),
    linear-gradient(155deg, #67c3ff 0%, #3b8bff 48%, #245fe0 100%);
}
.product-page[data-tone="file"] .product-hero {
  background:
    radial-gradient(420px 220px at 92% 0%, rgba(255,255,255,.28), transparent 60%),
    linear-gradient(155deg, #6eb0ff 0%, #3f78ee 46%, #1d4fbe 100%);
}
.product-page[data-tone="data"] .product-hero {
  background:
    radial-gradient(420px 220px at 92% 0%, rgba(255,255,255,.3), transparent 60%),
    linear-gradient(155deg, #8eb6ff 0%, #4d7ef0 50%, #2a56c8 100%);
}
.product-page .feature { border-top: 3px solid transparent; }
.product-page .feature:nth-child(1) { border-top-color: #3b7cff; }
.product-page .feature:nth-child(2) { border-top-color: #67a4ff; }
.product-page .feature:nth-child(3) { border-top-color: #2457d6; }
.product-page .related .scene { border-top: 0; }
.product-page .related .scene:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(24, 64, 140, 0.12);
}
.product-page .related .scene:hover::after { color: #163e86; }

@media (max-width: 980px) {
  .wrap { width: min(var(--wrap), calc(100% - 32px)); }
  .hero { width: min(var(--wrap), calc(100% - 20px)); margin: 12px auto 0; border-radius: 24px; }
  .hero-layout { display: block; min-height: 0; grid-template-columns: 1fr; gap: 22px; padding: 36px 20px 28px; }
  .hero h1 { font-size: 36px; }
  .hero-cloud { display: none; }
  .hero-mark { font-size: 42px; letter-spacing: 0.1em; right: -6px; bottom: -2px; -webkit-text-stroke-width: 1px; }
  .site-footer { width: min(var(--wrap), calc(100% - 20px)); margin: 12px auto 10px; padding: 36px 18px 18px; border-radius: 24px; }
  .menu-btn { display: inline-block; }
  .has-sub::after { display: none; }
  .main-nav {
    display: none; position: absolute; left: 10px; right: 10px; top: calc(100% + 6px);
    background: #fff; border-radius: 18px; padding: 10px; flex-direction: column; align-items: stretch;
    box-shadow: var(--shadow);
  }
  body.nav-open .main-nav { display: flex; }
  .mega, .has-sub:hover .mega, .has-sub:focus-within .mega { position: static; display: none; width: auto; transform: none; left: auto; box-shadow: none; padding: 0 0 8px 8px; }
  .has-sub.open .mega { display: grid; grid-template-columns: 1fr; }
  .mega-copy { white-space: normal; }
  .product-grid, .cats, .reasons, .scenes, .feature-grid, .store-grid,
  .login-grid, .biz-grid, .contact-grid, .split, .product-hero, .footer-grid { grid-template-columns: 1fr; }
  .product-card, .product-card.feature, .catalog .product-card { grid-column: auto; grid-row: auto; min-height: 0; }
  .help-layout, .enterprise-points, .values, .about-page .split { grid-template-columns: 1fr; }
  .help-aside { position: static; }
  .help-page .help-banner { width: min(var(--wrap), calc(100% - 20px)); padding: 32px 0 28px; }
  .help-page .help-banner .wrap { padding: 0 18px; }
  .enterprise-page .enterprise-banner { width: min(var(--wrap), calc(100% - 20px)); padding: 32px 0 28px; }
  .enterprise-page .enterprise-banner .wrap { padding: 0 18px; }
  .about-page .about-banner { width: min(var(--wrap), calc(100% - 20px)); padding: 32px 0 28px; }
  .about-page .about-banner .wrap { padding: 0 18px; }
  .value { min-height: 0; }
  .sitemap-page .page-hero,
  .catalog-page .page-hero { width: min(var(--wrap), calc(100% - 20px)); margin-left: auto; margin-right: auto; padding: 36px 18px 28px; }
  .sitemap-grid, .sitemap-products, .legal-layout { grid-template-columns: 1fr; }
  .legal-side { position: static; }
  .buy-row { grid-template-columns: 56px minmax(0, 1fr); }
  .buy-row .btn { grid-column: 1 / -1; min-width: 0; }
  .legal-doc { padding: 28px 22px 32px; }
  .sitemap-site { font-size: 11px; }
  .product-page .product-hero { width: min(var(--wrap), calc(100% - 20px)); margin-left: auto; margin-right: auto; padding: 28px 18px; }
  .band { flex-direction: column; align-items: flex-start; padding: 24px; }
  .dock { right: 12px; bottom: 16px; }
  .dock-pop { right: 60px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .product-card, .store-card, .home-cats .cat, .home-cats .cat::before,
  .enterprise-page .feature, .enterprise-qr, .about-page .panel, .value,
  .enterprise-page .feature .mark, .enterprise-qr .mark, .value .mark,
  .product-page .product-hero .side-card,
  .product-page .related .scene, .buy-row { transition: none; }
}