:root {
  --bg: #050810;
  --bg-elevated: #0b1120;
  --bg-card: rgba(12, 18, 34, 0.78);
  --text: #e8eef7;
  --text-muted: #8b9cb8;
  --primary: #38bdf8;
  --primary-strong: #0ea5e9;
  --border: rgba(148, 163, 184, 0.14);
  --font: "Noto Sans SC", system-ui, sans-serif;
  --max: 1120px;
  --header-h: 68px;
  --radius: 14px;
}

*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  max-width: 100%;
}
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  max-width: 100%;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.aurora { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.aurora-blob {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.42;
}
.a1 {
  width: 52vw; height: 52vw; max-width: 560px; max-height: 560px;
  top: -14%; left: -10%;
  background: radial-gradient(circle, rgba(56,189,248,.5), transparent 70%);
}
.a2 {
  width: 42vw; height: 42vw; max-width: 440px; max-height: 440px;
  top: 8%; right: -12%;
  background: radial-gradient(circle, rgba(129,140,248,.38), transparent 70%);
}
.a3 {
  width: 36vw; height: 36vw; max-width: 380px; max-height: 380px;
  bottom: -8%; left: 30%;
  background: radial-gradient(circle, rgba(14,165,233,.22), transparent 70%);
}

.site-header {
  position: sticky; top: 0; z-index: 30;
  backdrop-filter: blur(16px);
  background: rgba(5, 8, 16, 0.78);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  min-height: var(--header-h);
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(145deg, #38bdf8, #6366f1);
  color: #041018; font-weight: 800; font-size: 14px;
  box-shadow: 0 0 24px rgba(56,189,248,.35);
}
.brand-mark-y {
  background: transparent !important;
  box-shadow: none !important;
  color: #38bdf8;
  width: 32px; height: 32px; border-radius: 0; padding: 0;
}
.brand-mark-y .brand-y-svg { display: block; width: 32px; height: 32px; color: #38bdf8; }
.brand-mark-img {
  width: 32px; height: 32px; border-radius: 10px; object-fit: cover; display: block;
}
.partner-row {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  gap: 8px 18px;
}
.partner-logo {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 14px; font-weight: 600;
  text-decoration: none;
}
.partner-logo .partner-mark,
.partner-logo .partner-mark-img {
  width: 22px; height: 22px; border-radius: 6px;
  background: transparent;
  padding: 0;
  object-fit: cover;
  flex-shrink: 0;
}
.partner-logo .partner-mark svg { display: block; width: 22px; height: 22px; }
.partner-logo .partner-name { font-weight: 600; color: var(--text); }
/* 图二：B 站字标 / 小红书红胶囊 */
.partner-logo[data-brand="bilibili"]:not([data-custom]) .partner-mark { display: none; }
.partner-logo[data-brand="bilibili"]:not([data-custom]) .partner-name {
  color: #00A1D6; font-weight: 800; font-style: italic; letter-spacing: 0.02em; font-size: 16px;
}
.partner-logo[data-brand="xhs"]:not([data-custom]) {
  padding: 4px 12px; border-radius: 999px; background: #FF2442; gap: 0;
}
.partner-logo[data-brand="xhs"]:not([data-custom]) .partner-mark { display: none; }
.partner-logo[data-brand="xhs"]:not([data-custom]) .partner-name { color: #fff; font-weight: 700; }
.partner-logo[data-brand="douyin"]:not([data-custom]) .partner-name,
.partner-logo[data-brand="channels"]:not([data-custom]) .partner-name,
.partner-logo[data-brand="kuaishou"]:not([data-custom]) .partner-name {
  font-weight: 700; color: var(--text);
}
.partner-logo[data-custom] {
  padding: 0; border-radius: 0; background: transparent; gap: 8px;
}
.partner-logo[data-custom] .partner-mark-img {
  width: 28px; height: 28px; border-radius: 8px; display: block; object-fit: cover;
}
.partner-logo[data-custom] .partner-name {
  color: var(--text); font-style: normal; font-weight: 600; font-size: 14px;
}
.partner-mark-kuaishou { width: 24px !important; height: 24px !important; }
.partner-mark-kuaishou svg { width: 24px !important; height: 24px !important; }
.partner-sep {
  width: 1px; height: 16px; background: rgba(148,163,184,.25); flex-shrink: 0;
}
.brand strong { font-size: 18px; letter-spacing: 0.02em; }
.site-nav {
  display: flex; flex-wrap: wrap; gap: 4px 4px; flex: 1; justify-content: center;
}
.site-nav a {
  position: relative;
  color: var(--text-muted); font-size: 14px; font-weight: 500;
  padding: 8px 12px; border-radius: 0;
}
.site-nav a:hover { color: var(--text); }
.site-nav a.active {
  color: #fff;
}
.site-nav a.active::after {
  content: "";
  position: absolute; left: 12px; right: 12px; bottom: 2px;
  height: 2px; border-radius: 2px;
  background: var(--primary);
  box-shadow: 0 0 10px rgba(56,189,248,.55);
}
.header-actions { display: flex; gap: 8px; flex-shrink: 0; }
.nav-toggle {
  display: none; margin-left: auto;
  background: transparent; border: 1px solid var(--border);
  color: var(--text); border-radius: 8px; width: 40px; height: 36px;
}

.site-main {
  position: relative; z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 36px 20px 40px;
  min-height: 0;
}
.site-main.is-home { max-width: none; padding: 0 0 32px; }
.site-main.is-home > .home-wrap {
  max-width: var(--max); margin: 0 auto; padding: 0 20px;
}
.site-main .blk:last-child { margin-bottom: 0; }
.site-main.is-home .blk:last-child { margin-bottom: 8px; }

.loading, .empty { color: var(--text-muted); }
.empty-state {
  grid-column: 1 / -1;
  padding: 36px 20px;
  text-align: center;
  color: var(--text-muted);
  border: 1px dashed var(--border);
  border-radius: 16px;
  background: rgba(12,18,34,.35);
}
.empty-state p { margin: 0 0 16px; line-height: 1.6; }
.empty-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #041018; font-weight: 700; font-size: 14px;
  border: none; cursor: pointer;
  transition: transform .15s ease, filter .15s ease;
}
.btn:hover { filter: brightness(1.06); transform: translateY(-1px); }
.btn-ghost {
  background: transparent; color: var(--text);
  border: 1px solid var(--border);
}
.btn-sm { padding: 8px 14px; border-radius: 10px; font-size: 13px; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }

/* ——— Blocks ——— */
.blk { margin: 0 0 56px; }
.site-main.is-home .blk { margin-bottom: 28px; }
.blk-hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
  padding: 72px 0 36px;
  animation: rise .7s ease both;
  isolation: isolate;
}
.site-main.is-home .blk-hero {
  /* 相对 .home-wrap 全宽出血；配合 html/body overflow-x:hidden 避免横向滚动 */
  width: 100vw;
  max-width: 100vw;
  margin: 0 calc(50% - 50vw) 28px;
  padding: 80px max(20px, calc(50vw - var(--max) / 2)) 56px;
  overflow: hidden;
}
.site-main.is-home .blk-hero::before {
  content: "";
  position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(ellipse 70% 55% at 72% 42%, rgba(34,211,238,.18), transparent 55%),
    radial-gradient(ellipse 50% 40% at 55% 18%, rgba(56,189,248,.22), transparent 60%),
    radial-gradient(ellipse 80% 50% at 50% 100%, rgba(2,10,28,.95), transparent 55%),
    linear-gradient(180deg, #050a14 0%, #071422 38%, #0a1a2e 72%, #050810 100%);
}
.site-main.is-home .blk-hero::after {
  content: "";
  position: absolute; inset: auto 0 0; height: 42%; z-index: -1;
  background:
    linear-gradient(180deg, transparent, rgba(5,8,16,.55) 40%, rgba(5,8,16,.92)),
    radial-gradient(ellipse 120% 80% at 50% 120%, #0b2038 0%, transparent 60%);
  pointer-events: none;
}
.site-main.is-home .blk-hero .hero-sky {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(1px 1px at 12% 18%, rgba(255,255,255,.55), transparent),
    radial-gradient(1px 1px at 28% 32%, rgba(255,255,255,.4), transparent),
    radial-gradient(1.5px 1.5px at 48% 12%, rgba(186,230,253,.7), transparent),
    radial-gradient(1px 1px at 68% 28%, rgba(255,255,255,.35), transparent),
    radial-gradient(1px 1px at 82% 16%, rgba(255,255,255,.5), transparent),
    radial-gradient(1px 1px at 90% 40%, rgba(255,255,255,.3), transparent);
  opacity: .85;
}
.site-main.is-home .blk-hero .hero-mountains {
  position: absolute; left: 0; right: 0; bottom: 0; height: 38%; z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(165deg, transparent 42%, #0a1628 42.2%, #0d1c32 58%, #081220 100%),
    linear-gradient(195deg, transparent 48%, #0c1a2e 48.2%, #12263c 70%, #081018 100%);
  opacity: .9;
  mask-image: linear-gradient(180deg, transparent, #000 35%);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 35%);
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px; border-radius: 999px;
  border: 1px solid rgba(56,189,248,.28);
  background: rgba(12,18,34,.72);
  color: var(--primary); font-size: 12px; font-weight: 600;
  margin-bottom: 20px;
  box-shadow: 0 0 24px rgba(56,189,248,.12);
}
.hero-badge .badge-ico { flex-shrink: 0; }
.blk-hero h1 {
  font-size: clamp(36px, 5.4vw, 56px);
  line-height: 1.14; margin: 0 0 18px; font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}
.blk-hero .lead {
  color: var(--text-muted); max-width: 540px; font-size: 16px; margin: 0;
  line-height: 1.7;
}
.hero-meta {
  margin-top: 16px; color: var(--text-muted); font-size: 13px;
}
.hero-trust {
  list-style: none; margin: 18px 0 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 14px 20px;
}
.hero-trust li {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--text-muted); font-size: 13px;
}
.trust-ico {
  width: 18px; height: 18px; border-radius: 5px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(56,189,248,.12); color: var(--primary);
  position: relative;
}
.trust-ico::before {
  content: "";
  width: 10px; height: 10px;
  background: currentColor;
  mask-size: contain; mask-repeat: no-repeat; mask-position: center;
  -webkit-mask-size: contain; -webkit-mask-repeat: no-repeat; -webkit-mask-position: center;
}
.trust-ico[data-ico="win"]::before {
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='black' d='M1 2.5l6-.8v6.1H1V2.5zm7-.9l7-1v7.1H8V1.6zM1 8.7h6V14.9l-6-.9V8.7zm7 0h7v7.2l-7-1V8.7z'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='black' d='M1 2.5l6-.8v6.1H1V2.5zm7-.9l7-1v7.1H8V1.6zM1 8.7h6V14.9l-6-.9V8.7zm7 0h7v7.2l-7-1V8.7z'/%3E%3C/svg%3E");
}
.trust-ico[data-ico="shield"]::before {
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M12 2l8 3v6c0 5-3.5 9.5-8 11-4.5-1.5-8-6-8-11V5l8-3zm-1 13l6-6-1.4-1.4L11 12.2 8.4 9.6 7 11l4 4z'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M12 2l8 3v6c0 5-3.5 9.5-8 11-4.5-1.5-8-6-8-11V5l8-3zm-1 13l6-6-1.4-1.4L11 12.2 8.4 9.6 7 11l4 4z'/%3E%3C/svg%3E");
}
.trust-ico[data-ico="mac"]::before {
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M18.7 12.6c0-2.2 1.8-3.3 1.9-3.4-1-1.5-2.6-1.7-3.2-1.7-1.4-.1-2.6.8-3.3.8-.7 0-1.8-.8-3-.8-1.5 0-2.9.9-3.7 2.3-1.6 2.7-.4 6.8 1.1 9 .8 1.1 1.7 2.3 2.9 2.2 1.2-.1 1.6-.7 3-.7s1.8.7 3 .7c1.3 0 2.1-1.1 2.8-2.2.9-1.3 1.3-2.5 1.3-2.6-.1 0-2.5-.9-2.5-3.6zM15.5 5.6c.6-.8 1.1-1.9.9-3-.9 0-2 .6-2.6 1.4-.6.7-1.1 1.9-.9 3 1 .1 2-.5 2.6-1.4z'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M18.7 12.6c0-2.2 1.8-3.3 1.9-3.4-1-1.5-2.6-1.7-3.2-1.7-1.4-.1-2.6.8-3.3.8-.7 0-1.8-.8-3-.8-1.5 0-2.9.9-3.7 2.3-1.6 2.7-.4 6.8 1.1 9 .8 1.1 1.7 2.3 2.9 2.2 1.2-.1 1.6-.7 3-.7s1.8.7 3 .7c1.3 0 2.1-1.1 2.8-2.2.9-1.3 1.3-2.5 1.3-2.6-.1 0-2.5-.9-2.5-3.6zM15.5 5.6c.6-.8 1.1-1.9.9-3-.9 0-2 .6-2.6 1.4-.6.7-1.1 1.9-.9 3 1 .1 2-.5 2.6-1.4z'/%3E%3C/svg%3E");
}
.trust-ico[data-ico="check"]::before {
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2l-3.5-3.5L4 14.2l5 5 12-12-1.5-1.5z'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2l-3.5-3.5L4 14.2l5 5 12-12-1.5-1.5z'/%3E%3C/svg%3E");
}
.trust-ico[data-ico="refresh"]::before,
.trust-ico[data-ico="dot"]::before {
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M12 4V1L8 5l4 4V6c3.3 0 6 2.7 6 6 0 1-.2 1.9-.7 2.7l1.5 1.5C19.6 14.8 20 13.5 20 12c0-4.4-3.6-8-8-8zm0 14c-3.3 0-6-2.7-6-6 0-1 .2-1.9.7-2.7L5.2 7.8C4.4 9.2 4 10.5 4 12c0 4.4 3.6 8 8 8v3l4-4-4-4v3z'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M12 4V1L8 5l4 4V6c3.3 0 6 2.7 6 6 0 1-.2 1.9-.7 2.7l1.5 1.5C19.6 14.8 20 13.5 20 12c0-4.4-3.6-8-8-8zm0 14c-3.3 0-6-2.7-6-6 0-1 .2-1.9.7-2.7L5.2 7.8C4.4 9.2 4 10.5 4 12c0 4.4 3.6 8 8 8v3l4-4-4-4v3z'/%3E%3C/svg%3E");
}
.btn-hero {
  padding: 14px 26px;
  border-radius: 14px;
  font-size: 15px;
  box-shadow: 0 10px 36px rgba(14,165,233,.35);
}
.btn-ico { flex-shrink: 0; }
.hero-visual {
  position: relative;
  min-height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual img {
  width: 100%;
  max-width: 460px;
  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: 0 24px 80px rgba(14,165,233,.18);
}
.hero-stage {
  position: relative;
  width: 360px;
  height: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.hero-beams {
  position: absolute;
  inset: 0 10% 18%;
  background:
    linear-gradient(180deg, transparent 0%, rgba(56,189,248,.08) 40%, rgba(56,189,248,.35) 100%),
    repeating-linear-gradient(90deg, transparent 0 18px, rgba(56,189,248,.18) 18px 19px);
  mask-image: linear-gradient(180deg, transparent, #000 35%, #000 85%, transparent);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 35%, #000 85%, transparent);
  opacity: .7;
  filter: blur(.2px);
  animation: beam 6s ease-in-out infinite;
}
.hero-glow {
  position: absolute;
  width: 260px; height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56,189,248,.35), transparent 68%);
  top: 18%;
  filter: blur(8px);
  animation: pulse 3.2s ease-in-out infinite;
}
.hero-orb-wrap {
  position: relative;
  z-index: 2;
  margin-bottom: 8px;
}
.hero-orb {
  position: relative;
  width: 200px;
  height: 200px;
  border-radius: 48px;
  background:
    radial-gradient(circle at 30% 22%, rgba(255,255,255,.6), transparent 32%),
    linear-gradient(145deg, #a5f3fc 0%, #22d3ee 28%, #0ea5e9 55%, #2563eb 100%);
  box-shadow:
    0 0 0 1px rgba(255,255,255,.3) inset,
    0 0 100px rgba(56,189,248,.65),
    0 0 160px rgba(14,165,233,.35),
    0 32px 56px rgba(14,165,233,.32);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #041018;
  font-weight: 900;
  animation: float 5s ease-in-out infinite;
}
.hero-orb .mark {
  font-size: 96px;
  line-height: 1;
  letter-spacing: -0.06em;
  text-shadow: 0 8px 18px rgba(4,16,24,.18);
}
.hero-pedestal {
  position: relative;
  z-index: 1;
  width: 240px;
  height: 72px;
  margin-top: -6px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-pedestal .ring {
  position: absolute;
  left: 50%; top: 50%;
  border-radius: 50%;
  border: 1px solid rgba(56,189,248,.35);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 18px rgba(56,189,248,.2);
  animation: pulse 3.2s ease-in-out infinite;
}
.hero-pedestal .r1 { width: 120px; height: 36px; border-color: rgba(56,189,248,.55); }
.hero-pedestal .r2 { width: 180px; height: 52px; animation-delay: -.6s; opacity: .75; }
.hero-pedestal .r3 { width: 240px; height: 70px; animation-delay: -1.2s; opacity: .45; }
.hero-pedestal::after {
  content: "";
  position: absolute;
  width: 160px; height: 28px;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(56,189,248,.45), transparent 70%);
  filter: blur(4px);
}

.feat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.blk-features > h2 {
  margin: 0 0 20px;
  font-size: 20px;
}
.feat-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
  border: 1px solid rgba(148,163,184,.12);
  border-radius: 18px;
  padding: 24px 20px;
  background: linear-gradient(165deg, rgba(14,22,40,.9), rgba(8,12,24,.75));
  backdrop-filter: blur(10px);
  transition: border-color .2s, transform .2s, box-shadow .2s;
  min-height: 168px;
}
.feat-card:hover {
  border-color: rgba(56,189,248,.42);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(2,8,24,.35);
}
.feat-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: transparent; color: var(--primary);
  flex-shrink: 0;
  overflow: hidden;
}
.feat-icon svg { width: 36px; height: 36px; display: block; }
.feat-icon img { width: 100%; height: 100%; object-fit: cover; }
.feat-body h3 { margin: 0 0 8px; font-size: 16px; font-weight: 700; color: #fff; }
.feat-body p { margin: 0; color: var(--text-muted); font-size: 13px; line-height: 1.6; }


/* ——— Dual path ——— */
.blk-dual { margin: 8px 0 48px; }
.blk-dual > h2 {
  position: relative;
  text-align: center; margin: 0 0 28px;
  font-size: clamp(24px, 3.2vw, 32px); font-weight: 800; color: #fff;
}
.blk-dual > h2 .q {
  color: var(--primary); font-size: 1.35em; line-height: 0;
  vertical-align: -0.18em; margin: 0 6px;
  text-shadow: 0 0 18px rgba(56,189,248,.45);
  font-family: Georgia, "Times New Roman", serif;
}
.dual-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.dual-col {
  border: 1px solid rgba(148,163,184,.14);
  border-radius: 20px;
  padding: 26px 24px 22px;
  background: linear-gradient(165deg, rgba(16,24,44,.88), rgba(10,14,28,.7));
}
.dual-head {
  display: flex; align-items: flex-start; gap: 14px; margin-bottom: 18px;
}
.dual-ico {
  width: 42px; height: 42px; border-radius: 12px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(56,189,248,.12); color: var(--primary);
  border: 1px solid rgba(56,189,248,.22);
}
.dual-ico svg { width: 22px; height: 22px; }
.dual-col h3 { margin: 0 0 6px; font-size: 18px; font-weight: 700; color: #fff; }
.dual-lead { margin: 0; color: var(--text-muted); font-size: 13px; line-height: 1.5; }
.dual-steps {
  list-style: none; margin: 0 0 18px; padding: 0;
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 4px;
}
.dual-steps .dual-step {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--text); font-size: 13px; font-weight: 500;
}
.dual-steps li {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--text); font-size: 13px; font-weight: 500;
}
.dual-steps .n {
  flex-shrink: 0; width: 24px; height: 24px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(56,189,248,.16); color: var(--primary);
  font-size: 12px; font-weight: 700;
  border: 1px solid rgba(56,189,248,.28);
}
.dual-steps .sep {
  color: rgba(56,189,248,.55); font-size: 14px; padding: 0 4px;
  user-select: none;
}
.dual-link {
  display: inline-flex; align-items: center; gap: 4px;
  color: var(--primary); font-size: 14px; font-weight: 600;
}
.dual-link:hover { filter: brightness(1.12); }
@media (max-width: 800px) {
  .dual-grid { grid-template-columns: 1fr; }
}

.blk-partners { text-align: center; padding: 8px 0 4px; }
.blk-partners h2 {
  margin: 0 0 18px; font-size: 15px; font-weight: 500; color: var(--text-muted);
}
.partner-mark {
  width: 28px; height: 28px; border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 800; color: #fff;
  background: #64748b;
  overflow: hidden;
  flex-shrink: 0;
}
.partner-mark svg { display: block; }
.partner-mark-img {
  width: 28px; height: 28px; border-radius: 8px;
  object-fit: cover; display: block; flex-shrink: 0;
}
.partner-chip {
  padding: 10px 16px; border-radius: 10px;
  border: 1px solid var(--border); color: var(--text-muted);
  background: rgba(12,18,34,.55); font-size: 13px; font-weight: 600;
}

.blk-imagetext {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 28px; align-items: center;
}
.blk-imagetext.right { direction: rtl; }
.blk-imagetext.right > * { direction: ltr; }
.blk-imagetext img {
  width: 100%; border-radius: 16px; border: 1px solid var(--border);
}
.blk-faq details {
  border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 16px; margin-bottom: 8px; background: var(--bg-card);
}
.blk-faq summary { cursor: pointer; font-weight: 600; }
.blk-changelog .cl-item {
  border-left: 2px solid rgba(56,189,248,.45);
  padding: 0 0 18px 16px; margin-left: 6px;
}
.blk-changelog .cl-ver { color: var(--primary); font-weight: 700; }
.blk-media img { width: 100%; border-radius: 16px; border: 1px solid var(--border); }
.blk-media .caption { color: var(--text-muted); font-size: 13px; text-align: center; }
.blk-download {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border: 1px solid rgba(56,189,248,.22);
  border-radius: 20px;
  padding: 28px 32px;
  background:
    linear-gradient(120deg, rgba(14,165,233,.16), rgba(12,18,34,.92) 45%, rgba(37,99,235,.12));
  box-shadow: 0 0 48px rgba(14,165,233,.08);
  scroll-margin-top: 90px;
}
.blk-download .dl-copy {
  display: flex; align-items: center; gap: 16px; min-width: 220px;
}
.blk-download .dl-ico {
  width: 48px; height: 48px; border-radius: 14px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(56,189,248,.15); color: var(--primary);
  border: 1px solid rgba(56,189,248,.25);
}
.blk-download h2 { margin: 0; font-size: 22px; font-weight: 800; color: #fff; }
.blk-download p { margin: 6px 0 0; color: var(--text-muted); font-size: 13px; }
.dl-tabs {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin: 0;
}
.dl-tab {
  display: inline-flex; flex-direction: column; align-items: flex-start; justify-content: center;
  min-width: 168px;
  padding: 12px 18px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(8,12,24,.65);
  color: var(--text);
  font-size: 14px; font-weight: 700;
  line-height: 1.25;
  transition: background .15s, border-color .15s, color .15s, box-shadow .15s;
}
.dl-tab small {
  margin-top: 4px; font-size: 11px; font-weight: 500; color: var(--text-muted);
}
.dl-tab:hover,
.dl-tab.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  border-color: transparent;
  color: #041018;
  box-shadow: 0 10px 28px rgba(14,165,233,.3);
}
.dl-tab:hover small,
.dl-tab.active small { color: rgba(4,16,24,.72); }

/* ——— Academy ——— */
.layout-academy { display: flex; flex-direction: column; gap: 28px; }
.academy-hero {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 36px; align-items: center;
  padding: 28px 0 8px;
}
.academy-hero h1 {
  margin: 0 0 14px; font-size: clamp(34px, 4.8vw, 48px);
  font-weight: 800; letter-spacing: -0.02em; color: #fff; line-height: 1.15;
}
.academy-hero .lead {
  margin: 0; color: var(--text-muted); font-size: 16px; max-width: 520px; line-height: 1.7;
}
.academy-hero .cta { margin-top: 22px; }
.academy-body {
  display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; align-items: start;
}
.academy-panel {
  border: 1px solid rgba(148,163,184,.14);
  border-radius: 18px;
  padding: 22px 22px 18px;
  background: linear-gradient(165deg, rgba(14,22,40,.88), rgba(8,12,24,.72));
  margin-bottom: 18px;
}
.academy-panel > h2 {
  margin: 0 0 18px; font-size: 18px; font-weight: 700; color: #fff;
}
.academy-steps {
  list-style: none; margin: 0; padding: 0; display: grid; gap: 0;
}
.academy-steps li {
  position: relative;
  display: grid; grid-template-columns: 36px 1fr; gap: 12px;
  padding: 0 0 22px;
}
.academy-steps li:last-child { padding-bottom: 0; }
.academy-steps li:not(:last-child)::before {
  content: "";
  position: absolute; left: 17px; top: 34px; bottom: 0;
  border-left: 1px dashed rgba(56,189,248,.35);
}
.academy-steps .n {
  width: 34px; height: 34px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(56,189,248,.14); color: var(--primary);
  border: 1px solid rgba(56,189,248,.35);
  font-weight: 800; font-size: 14px;
  box-shadow: 0 0 16px rgba(56,189,248,.2);
}
.academy-steps strong { display: block; color: #fff; font-size: 15px; margin-bottom: 4px; }
.academy-steps p { margin: 0; color: var(--text-muted); font-size: 13px; line-height: 1.55; }
.guide-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
}
.guide-card {
  display: grid; grid-template-columns: 56px 1fr; gap: 10px; align-items: center;
  padding: 10px; border-radius: 14px;
  border: 1px solid rgba(148,163,184,.12);
  background: rgba(8,12,24,.45);
  transition: border-color .2s, transform .2s;
}
.guide-card:hover {
  border-color: rgba(56,189,248,.4);
  transform: translateY(-1px);
}
.guide-card img, .guide-ph {
  width: 56px; height: 44px; border-radius: 8px; object-fit: cover;
  background: linear-gradient(145deg, rgba(56,189,248,.2), rgba(37,99,235,.15));
  border: 1px solid var(--border);
}
.guide-card .pill {
  display: inline-flex; padding: 2px 8px; border-radius: 6px;
  font-size: 11px; font-weight: 600; margin-bottom: 4px;
  background: rgba(56,189,248,.12); color: var(--primary);
}
.guide-card .pill.tag-intro { color: #fbbf24; background: rgba(251,191,36,.12); }
.guide-card .pill.tag-platform { color: #60a5fa; background: rgba(96,165,250,.12); }
.guide-card .pill.tag-tool { color: #2dd4bf; background: rgba(45,212,191,.12); }
.guide-card h3 {
  margin: 0; font-size: 14px; font-weight: 700; line-height: 1.35; color: #fff;
}
.guide-more {
  display: inline-flex; margin-top: 14px; color: var(--primary);
  font-size: 14px; font-weight: 600;
}
.side-download {
  text-align: center;
  padding: 20px 16px !important;
  background:
    linear-gradient(165deg, rgba(14,165,233,.2), rgba(8,12,24,.92)) !important;
  border-color: rgba(56,189,248,.25) !important;
}
.side-download h3 { margin: 0 0 8px; font-size: 16px; color: #fff; }
.side-download p { margin: 0 0 14px; font-size: 12px; color: var(--text-muted); line-height: 1.55; }
.side-download .side-dl-visual {
  width: 100%; height: 110px; margin: 0 0 16px; border-radius: 14px;
  background:
    radial-gradient(circle at 50% 40%, rgba(56,189,248,.35), transparent 55%),
    linear-gradient(180deg, rgba(14,22,40,.2), rgba(8,12,24,.8));
  border: 1px solid rgba(56,189,248,.2);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); font-size: 42px; font-weight: 900;
  box-shadow: inset 0 0 40px rgba(56,189,248,.12);
}
.side-download .btn { width: 100%; }

@media (max-width: 960px) {
  .academy-hero, .academy-body { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr; }
}
.layout-blog {
  display: grid; grid-template-columns: 1fr 300px; gap: 32px; align-items: start;
}
.list-head { margin-bottom: 28px; }
.list-head h1 { margin: 0 0 10px; font-size: 40px; font-weight: 800; letter-spacing: -0.02em; }
.list-head p { margin: 0; color: var(--text-muted); max-width: 640px; }

.card-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px;
}
.card {
  display: flex; flex-direction: column;
  border: 1px solid var(--border); border-radius: 16px; overflow: hidden;
  background: var(--bg-card); transition: border-color .2s, transform .2s;
}
.card:hover { border-color: rgba(56,189,248,.45); transform: translateY(-2px); }
.card img { width: 100%; height: 160px; object-fit: cover; background: #111827; }
.card > div { padding: 16px 16px 18px; }
.card .pill {
  display: inline-flex; padding: 3px 10px; border-radius: 999px;
  background: rgba(56,189,248,.12); color: var(--primary);
  font-size: 12px; font-weight: 600; margin-bottom: 10px;
}
.card h3 { margin: 0 0 8px; font-size: 17px; line-height: 1.35; }
.card p { margin: 0 0 12px; color: var(--text-muted); font-size: 13px; }
.card time { color: var(--text-muted); font-size: 12px; }

.side-panel {
  position: sticky; top: calc(var(--header-h) + 16px);
  display: flex; flex-direction: column; gap: 16px;
}
.side-card {
  border: 1px solid var(--border); border-radius: 16px;
  padding: 16px; background: var(--bg-card);
}
.side-card h3 { margin: 0 0 12px; font-size: 15px; }
.side-search {
  display: flex; gap: 8px;
}
.side-search input {
  flex: 1; min-width: 0; height: 38px; border-radius: 10px;
  border: 1px solid var(--border); background: rgba(5,8,16,.6);
  color: var(--text); padding: 0 12px; outline: none;
}
.side-search button {
  width: 38px; border: none; border-radius: 10px;
  background: var(--primary); color: #041018; font-weight: 700; cursor: pointer;
}
.cat-list { display: flex; flex-direction: column; gap: 4px; }
.cat-list a {
  display: flex; justify-content: space-between; gap: 8px;
  padding: 9px 10px; border-radius: 10px; color: var(--text-muted); font-size: 13px;
}
.cat-list a:hover, .cat-list a.active {
  background: rgba(56,189,248,.1); color: var(--text);
}
.cat-list a.active { box-shadow: inset 3px 0 0 var(--primary); }
.cat-list .cnt { opacity: .7; }

.pager { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.pager a {
  min-width: 34px; height: 34px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: 10px; color: var(--text-muted); font-size: 13px;
}
.pager a.active, .pager a:hover {
  color: #041018; background: var(--primary); border-color: transparent;
}

/* ——— Article ——— */
.layout-article {
  display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 36px; align-items: start;
}
.crumbs {
  display: flex; flex-wrap: wrap; gap: 6px; align-items: center;
  color: var(--text-muted); font-size: 13px; margin-bottom: 14px;
}
.crumbs a { color: var(--primary); }
.article-badge {
  display: inline-flex; padding: 4px 10px; border-radius: 999px;
  background: rgba(56,189,248,.12); color: var(--primary);
  font-size: 12px; font-weight: 600; margin-bottom: 12px;
}
.article h1 {
  margin: 0 0 14px; font-size: clamp(28px, 4vw, 40px);
  line-height: 1.25; font-weight: 800; letter-spacing: -0.02em;
}
.article-meta {
  display: flex; flex-wrap: wrap; gap: 14px 18px;
  color: var(--text-muted); font-size: 13px; margin-bottom: 20px;
}
.article .cover {
  width: 100%; max-height: 420px; object-fit: cover;
  border-radius: 16px; margin: 8px 0 24px; border: 1px solid var(--border);
}
.page-body, .article .blk { color: #c9d4e5; }
.page-body h2, .article .blk h2 { color: var(--text); }
.page-body a { color: var(--primary); }
.related-list { display: flex; flex-direction: column; gap: 12px; }
.related-list a {
  display: grid; grid-template-columns: 56px 1fr; gap: 10px; align-items: center;
}
.related-list img, .related-ph {
  width: 56px; height: 56px; border-radius: 10px; object-fit: cover;
  background: rgba(56,189,248,.12); border: 1px solid var(--border);
}
.related-list h4 { margin: 0 0 4px; font-size: 13px; line-height: 1.35; }
.related-list time { font-size: 11px; color: var(--text-muted); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud span {
  padding: 6px 10px; border-radius: 999px; font-size: 12px;
  border: 1px solid var(--border); color: var(--text-muted);
}
.tag-cloud span.hot {
  border-color: rgba(56,189,248,.45); color: var(--primary);
  background: rgba(56,189,248,.1);
}
.side-cta {
  text-align: center; padding: 20px 16px !important;
  background: linear-gradient(160deg, rgba(14,165,233,.18), rgba(12,18,34,.85)) !important;
}
.side-cta p { margin: 0 0 12px; font-size: 14px; }

/* ——— Help ——— */
.help-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px;
}
.help-card {
  border: 1px solid var(--border); border-radius: 16px; padding: 22px;
  background: var(--bg-card); transition: border-color .2s, transform .2s;
}
.help-card:hover { border-color: rgba(56,189,248,.45); transform: translateY(-2px); }
.help-card h3 { margin: 0 0 8px; }
.help-card p { margin: 0; color: var(--text-muted); font-size: 13px; }

.preview-banner {
  margin-bottom: 16px; padding: 8px 12px; border-radius: 8px;
  background: rgba(251, 191, 36, 0.15); color: #fbbf24; font-size: 13px;
}

.site-footer {
  position: relative; z-index: 1;
  border-top: 1px solid var(--border);
  color: var(--text-muted); font-size: 13px;
  background: rgba(5,8,16,.92);
}
.footer-inner {
  max-width: var(--max); margin: 0 auto; padding: 28px 20px 20px;
  display: grid; grid-template-columns: 1.3fr 1.4fr 0.9fr; gap: 28px;
}
.footer-brand p { margin: 12px 0 0; max-width: 320px; line-height: 1.6; }
.footer-cols {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.footer-cols h4, .footer-contact h4 {
  margin: 0 0 12px; color: var(--text); font-size: 14px;
}
.footer-cols a {
  display: block; margin-bottom: 8px; color: var(--text-muted);
}
.footer-cols a:hover { color: var(--primary); }
.footer-bar {
  border-top: 1px solid var(--border);
  text-align: center; padding: 16px 20px;
  display: flex; flex-wrap: wrap; gap: 8px 16px;
  justify-content: center; align-items: center;
  color: var(--text-muted); font-size: 13px;
}
.footer-meta:empty { display: none; }
.footer-contact .footer-follow-links {
  margin-top: 12px;
  display: flex; flex-wrap: wrap; gap: 10px;
}
.footer-follow-links .partner-logo { text-decoration: none; }
.muted { color: var(--text-muted); }

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes pulse {
  0%, 100% { opacity: .35; transform: scale(1); }
  50% { opacity: .7; transform: scale(1.04); }
}

@media (max-width: 960px) {
  .blk-hero, .layout-blog, .layout-article, .feat-grid, .footer-inner, .blk-imagetext {
    grid-template-columns: 1fr;
  }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 220px; order: -1; }
  .side-panel { position: static; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
  .header-actions { display: none; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .site-nav {
    display: none; position: absolute; left: 0; right: 0; top: var(--header-h);
    background: rgba(5,8,16,.96); border-bottom: 1px solid var(--border);
    padding: 12px 16px 16px; flex-direction: column; align-items: stretch;
  }
  .site-nav.open { display: flex; }
  .blk-download { padding: 20px; }
  .blk-download .dl-copy { min-width: 0; width: 100%; }
  .dl-tab { min-width: 0; flex: 1 1 calc(50% - 10px); }
}
@media (max-width: 640px) {
  .feat-grid { grid-template-columns: 1fr; }
  .list-head h1 { font-size: 30px; }
  .dl-tabs { width: 100%; }
  .dl-tab { flex: 1 1 100%; }
  .footer-cols { grid-template-columns: 1fr; }
}