* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --ink: #16233a;
  --ink-soft: #46536b;
  --ink-light: #6f7c94;
  --brand: #ff5a3c;
  --brand-deep: #e03c22;
  --violet: #6a4cf0;
  --teal: #12b3a0;
  --amber: #ffb020;
  --sky: #3d8bff;
  --paper: #fbf8f4;
  --paper-2: #f4eef9;
  --card: #ffffff;
  --line: #e8e2da;
  --shadow-sm: 0 2px 10px rgba(22,35,58,.06);
  --shadow-md: 0 12px 32px rgba(22,35,58,.10);
  --shadow-lg: 0 24px 60px rgba(22,35,58,.14);
  --radius: 18px;
  --radius-sm: 12px;
  --max: 1200px;
}
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--paper);
  background-image:
    radial-gradient(1200px 600px at 12% -6%, rgba(255,90,60,.09), transparent 60%),
    radial-gradient(1000px 520px at 92% 4%, rgba(106,76,240,.10), transparent 62%),
    radial-gradient(900px 500px at 50% 100%, rgba(18,179,160,.07), transparent 65%);
  background-attachment: fixed;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
ul { list-style: none; }
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
section { position: relative; }

/* ============ NAV ============ */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(251,248,244,.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(232,226,218,.9);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px; min-height: 68px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.ai-page-logo { width: 132px; object-fit: contain; }
.brand-fallback {
  display: none; font-weight: 800; font-size: 19px; letter-spacing: .5px;
  color: var(--ink);
}
.nav-links {
  display: flex; align-items: center; gap: 0;
  flex-wrap: wrap; justify-content: center;
}
.nav-links a {
  font-size: 14.5px; color: var(--ink-soft); padding: 8px 11px;
  border-radius: 8px; transition: color .2s, background .2s;
  font-weight: 500; white-space: nowrap;
}
.nav-links a:hover { color: var(--brand); background: rgba(255,90,60,.07); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 6px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--brand), #ff8a3d);
  color: #fff; font-weight: 700; font-size: 14px;
  padding: 10px 20px; border-radius: 999px;
  box-shadow: 0 8px 20px rgba(255,90,60,.28);
  transition: transform .2s, box-shadow .2s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(255,90,60,.36); }
.menu-toggle {
  display: none; width: 42px; height: 42px; border: 1px solid var(--line);
  background: #fff; border-radius: 12px; cursor: pointer; align-items: center; justify-content: center;
  flex-direction: column; gap: 5px;
}
.menu-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; transition: .25s; }

/* ============ HERO ============ */
.hero { padding: 76px 0 68px; overflow: hidden; }
.hero-grid {
  display: grid; grid-template-columns: 1.12fr .88fr; gap: 48px; align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--line);
  color: var(--brand-deep); font-size: 13px; font-weight: 700;
  padding: 7px 15px; border-radius: 999px; box-shadow: var(--shadow-sm);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 4px rgba(255,90,60,.16); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 4px rgba(255,90,60,.16); } 50% { box-shadow: 0 0 0 8px rgba(255,90,60,.05); } }
.hero h1 {
  font-size: clamp(30px, 4.2vw, 50px); line-height: 1.22; letter-spacing: -.5px;
  margin: 20px 0 18px; font-weight: 800;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--brand) 0%, var(--violet) 52%, var(--teal) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { font-size: 16.5px; color: var(--ink-soft); max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--brand), #ff8b3d);
  color: #fff; font-weight: 700; font-size: 16px;
  padding: 14px 30px; border-radius: 999px;
  box-shadow: 0 12px 28px rgba(255,90,60,.30);
  transition: transform .22s, box-shadow .22s;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 18px 38px rgba(255,90,60,.38); }
.btn-primary:active { transform: translateY(0) scale(.98); }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1.5px solid var(--line); color: var(--ink);
  font-weight: 600; font-size: 15.5px; padding: 13px 28px; border-radius: 999px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.btn-ghost:hover { border-color: var(--violet); color: var(--violet); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 28px; }
.hero-tags span {
  font-size: 13px; color: var(--ink-soft); background: rgba(255,255,255,.8);
  border: 1px solid var(--line); padding: 6px 13px; border-radius: 999px;
  transition: color .2s, border-color .2s;
}
.hero-tags span:hover { color: var(--brand-deep); border-color: rgba(255,90,60,.4); }

.hero-visual { position: relative; }
.orbit-card {
  background: linear-gradient(150deg, #ffffff 0%, #fdf6f2 46%, #f3eefd 100%);
  border: 1px solid var(--line); border-radius: 26px;
  padding: 26px 24px; box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.orbit-card::before {
  content: ""; position: absolute; width: 240px; height: 240px; border-radius: 50%;
  background: radial-gradient(circle, rgba(106,76,240,.20), transparent 70%);
  top: -90px; right: -70px;
}
.orbit-card::after {
  content: ""; position: absolute; width: 200px; height: 200px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,90,60,.18), transparent 70%);
  bottom: -80px; left: -60px;
}
.orbit-head { display: flex; justify-content: space-between; align-items: center; position: relative; z-index: 1; }
.orbit-head strong { font-size: 15px; }
.orbit-head small { font-size: 12px; color: var(--ink-light); background: #fff; border: 1px solid var(--line); padding: 3px 10px; border-radius: 999px; }
.model-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; position: relative; z-index: 1; }
.model-cloud span {
  font-size: 12.5px; font-weight: 600; color: var(--ink-soft);
  background: #fff; border: 1px solid var(--line);
  padding: 6px 12px; border-radius: 9px;
  transition: transform .2s, color .2s, border-color .2s;
}
.model-cloud span:nth-child(3n) { color: var(--violet); }
.model-cloud span:nth-child(3n+1) { color: var(--brand-deep); }
.model-cloud span:nth-child(3n+2) { color: #0e8f80; }
.model-cloud span:hover { transform: translateY(-3px); border-color: currentColor; }
.orbit-foot {
  margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--line);
  display: flex; justify-content: space-between; gap: 12px; position: relative; z-index: 1;
}
.orbit-foot div { text-align: left; }
.orbit-foot b { display: block; font-size: 19px; color: var(--ink); font-weight: 800; letter-spacing: -.3px; }
.orbit-foot small { font-size: 12px; color: var(--ink-light); }

/* ============ SECTION HEADS ============ */
.sec { padding: 62px 0; }
.sec-head { max-width: 720px; margin-bottom: 34px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-label {
  display: inline-block; font-size: 12.5px; font-weight: 800; letter-spacing: 2px;
  color: var(--brand-deep); text-transform: uppercase; margin-bottom: 12px;
}
.sec-head h2 { font-size: clamp(24px, 3vw, 34px); line-height: 1.32; letter-spacing: -.4px; font-weight: 800; }
.sec-head p { color: var(--ink-soft); font-size: 15.5px; margin-top: 12px; }

/* ============ STATS ============ */
.stats-band {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.stat-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px; box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s;
  border-top: 3px solid transparent;
}
.stat-card:nth-child(1) { border-top-color: var(--brand); }
.stat-card:nth-child(2) { border-top-color: var(--violet); }
.stat-card:nth-child(3) { border-top-color: var(--teal); }
.stat-card:nth-child(4) { border-top-color: var(--amber); }
.stat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.stat-card b { font-size: 28px; font-weight: 800; letter-spacing: -.6px; display: block; }
.stat-card span { font-size: 13.5px; color: var(--ink-light); }

/* ============ ABOUT ============ */
.about-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.about-text p { color: var(--ink-soft); font-size: 15.5px; margin-bottom: 14px; }
.about-points { display: grid; gap: 12px; margin-top: 22px; }
.about-points li {
  display: flex; gap: 12px; background: #fff; border: 1px solid var(--line);
  border-radius: 14px; padding: 14px 16px; font-size: 14.5px; color: var(--ink-soft);
  transition: border-color .2s, transform .2s;
}
.about-points li:hover { border-color: rgba(106,76,240,.35); transform: translateX(4px); }
.about-points b { color: var(--ink); display: block; font-size: 15px; margin-bottom: 2px; }
.check {
  flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%;
  background: rgba(18,179,160,.14); color: #0b8f80; font-weight: 800;
  display: flex; align-items: center; justify-content: center; font-size: 12px; margin-top: 2px;
}
.media-stack { display: grid; gap: 16px; }
.media-item {
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  box-shadow: var(--shadow-sm); background: #fff;
}
.media-item img { width: 100%; object-fit: cover; transition: transform .5s; }
.media-item:hover img { transform: scale(1.03); }
.media-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ============ SERVICES ============ */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.svc-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s, border-color .25s;
  position: relative; overflow: hidden;
}
.svc-card::after {
  content: ""; position: absolute; inset: 0 0 auto auto; width: 90px; height: 90px;
  background: radial-gradient(circle at 100% 0, rgba(255,90,60,.10), transparent 70%);
  opacity: 0; transition: opacity .3s;
}
.svc-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(255,90,60,.28); }
.svc-card:hover::after { opacity: 1; }
.svc-icon {
  width: 44px; height: 44px; border-radius: 13px; display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 800; margin-bottom: 16px; color: #fff;
}
.i-brand { background: linear-gradient(135deg, #ff5a3c, #ff9a5a); }
.i-violet { background: linear-gradient(135deg, #6a4cf0, #9b8bff); }
.i-teal { background: linear-gradient(135deg, #12b3a0, #4fd6c3); }
.i-sky { background: linear-gradient(135deg, #3d8bff, #7db4ff); }
.i-amber { background: linear-gradient(135deg, #f2a015, #ffcb5c); }
.i-rose { background: linear-gradient(135deg, #e8477e, #ff8fb2); }
.svc-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.svc-card p { font-size: 14px; color: var(--ink-soft); }

/* ============ FLOW ============ */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.flow-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px; position: relative; box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s;
}
.flow-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.flow-item::before {
  counter-increment: step; content: "0" counter(step);
  font-size: 30px; font-weight: 800; color: rgba(22,35,58,.09);
  position: absolute; top: 14px; right: 18px; letter-spacing: -1px;
}
.flow-item h3 { font-size: 16px; margin-bottom: 8px; }
.flow-item p { font-size: 13.5px; color: var(--ink-soft); }

/* ============ SOLUTION TABS ============ */
.sol-list { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.sol-list button {
  font-family: inherit; cursor: pointer; font-size: 14px; font-weight: 600;
  padding: 9px 18px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; color: var(--ink-soft); transition: all .2s;
}
.sol-list button:hover { color: var(--brand-deep); border-color: rgba(255,90,60,.4); }
.sol-list button.active { background: var(--ink); color: #fff; border-color: var(--ink); }
.sol-panel { display: none; }
.sol-panel.active { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: start; animation: fadeUp .45s ease both; }
.sol-panel h3 { font-size: 22px; margin-bottom: 12px; }
.sol-panel p.desc { color: var(--ink-soft); font-size: 15px; margin-bottom: 18px; }
.sol-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.sol-tags span {
  font-size: 13px; color: var(--ink-soft); background: rgba(255,255,255,.85);
  border: 1px dashed var(--line); padding: 6px 12px; border-radius: 8px;
}
.sol-media { display: grid; gap: 14px; }
.sol-media img { border-radius: 16px; border: 1px solid var(--line); width: 100%; object-fit: cover; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* ============ NETWORK / TIMELINE ============ */
.net-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.net-card {
  background: linear-gradient(160deg, #fff, #fbf6ff);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow-sm); transition: transform .25s, box-shadow .25s;
}
.net-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.net-card h3 { font-size: 16px; margin-bottom: 6px; }
.net-card p { font-size: 13.5px; color: var(--ink-soft); }
.timeline { margin-top: 34px; border-left: 2px solid rgba(106,76,240,.25); padding-left: 22px; display: grid; gap: 20px; }
.tl-item { position: relative; }
.tl-item::before {
  content: ""; position: absolute; left: -29px; top: 7px; width: 12px; height: 12px;
  border-radius: 50%; background: var(--violet); box-shadow: 0 0 0 4px rgba(106,76,240,.14);
}
.tl-item b { font-size: 15px; }
.tl-item p { font-size: 13.5px; color: var(--ink-soft); }

/* ============ CASE ============ */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.case-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s; display: flex; flex-direction: column;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.case-thumb { aspect-ratio: 16/10; overflow: hidden; background: var(--paper-2); }
.case-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.case-card:hover .case-thumb img { transform: scale(1.05); }
.case-body { padding: 18px 20px 22px; }
.case-body h3 { font-size: 16px; margin-bottom: 7px; }
.case-body p { font-size: 13.5px; color: var(--ink-soft); }
.case-kicker { font-size: 12px; font-weight: 800; letter-spacing: 1px; color: var(--brand-deep); margin-bottom: 6px; display: block; }

/* ============ COMPARE ============ */
.rate-panel {
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between;
  background: linear-gradient(120deg, #201a3a, #3a2a6b 55%, #1f4a56);
  color: #fff; border-radius: var(--radius); padding: 26px 28px; margin-bottom: 26px;
  box-shadow: var(--shadow-md);
}
.rate-panel h3 { font-size: 19px; margin-bottom: 4px; }
.rate-panel p { font-size: 13.5px; color: rgba(255,255,255,.78); }
.rate-score { display: flex; align-items: baseline; gap: 10px; }
.rate-score b { font-size: 42px; font-weight: 800; letter-spacing: -1px; line-height: 1; }
.rate-score small { font-size: 14px; color: rgba(255,255,255,.7); }
.stars { color: #ffc94d; letter-spacing: 3px; font-size: 17px; }
.table-scroll { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow-sm); }
table.cmp { width: 100%; border-collapse: collapse; min-width: 760px; font-size: 14px; }
table.cmp thead th {
  background: #f7f3ee; text-align: left; padding: 15px 18px; font-weight: 700;
  color: var(--ink); border-bottom: 1px solid var(--line); white-space: nowrap;
}
table.cmp thead th:last-child { color: var(--brand-deep); }
table.cmp td { padding: 14px 18px; border-bottom: 1px solid #f0ebe4; color: var(--ink-soft); vertical-align: top; }
table.cmp tbody tr:last-child td { border-bottom: 0; }
table.cmp tbody tr:hover td { background: #fdfaf7; }
table.cmp td:first-child { font-weight: 600; color: var(--ink); white-space: nowrap; }
.badge-yes { color: #0b8f80; font-weight: 700; }
.badge-part { color: #b57b06; font-weight: 600; }

/* ============ PRICING / TOKEN ============ */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.price-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; box-shadow: var(--shadow-sm); position: relative;
  transition: transform .25s, box-shadow .25s;
  display: flex; flex-direction: column;
}
.price-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.price-card.featured { border-color: rgba(255,90,60,.45); box-shadow: 0 16px 40px rgba(255,90,60,.14); }
.price-card .tag {
  position: absolute; top: -12px; left: 24px; background: var(--brand); color: #fff;
  font-size: 12px; font-weight: 700; padding: 3px 12px; border-radius: 999px;
}
.price-card h3 { font-size: 17px; margin-bottom: 6px; }
.price-card .price { font-size: 28px; font-weight: 800; letter-spacing: -.5px; margin: 10px 0 4px; }
.price-card .price small { font-size: 13px; font-weight: 500; color: var(--ink-light); }
.price-card ul { margin: 14px 0 20px; display: grid; gap: 9px; }
.price-card ul li { font-size: 13.5px; color: var(--ink-soft); display: flex; gap: 8px; align-items: flex-start; }
.price-card ul li::before { content: "·"; color: var(--brand); font-weight: 800; font-size: 18px; line-height: 1; }
.price-card .btn-ghost, .price-card .btn-primary { width: 100%; justify-content: center; padding: 11px 18px; font-size: 14.5px; margin-top: auto; }
.token-note {
  margin-top: 20px; background: #fff; border: 1px dashed var(--line); border-radius: var(--radius-sm);
  padding: 16px 20px; font-size: 13.5px; color: var(--ink-soft);
}

/* ============ REVIEWS ============ */
.rev-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.rev-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px; box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s; display: flex; flex-direction: column; gap: 14px;
}
.rev-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.rev-stars { color: #ffb020; letter-spacing: 2px; font-size: 14px; }
.rev-card blockquote { font-size: 14px; color: var(--ink-soft); line-height: 1.8; }
.rev-user { display: flex; align-items: center; gap: 12px; margin-top: auto; padding-top: 6px; border-top: 1px solid #f2ede6; }
.avatar {
  width: 38px; height: 38px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 15px;
}
.rev-user b { display: block; font-size: 14px; }
.rev-user span { font-size: 12.5px; color: var(--ink-light); }

/* ============ FORM ============ */
.form-wrap {
  display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: start;
  background: #fff; border: 1px solid var(--line); border-radius: 24px;
  padding: 36px; box-shadow: var(--shadow-md);
}
.contact-list { display: grid; gap: 14px; margin-top: 20px; }
.contact-row {
  display: flex; gap: 12px; align-items: flex-start; padding: 13px 16px;
  background: var(--paper); border-radius: 12px; font-size: 14px; color: var(--ink-soft);
}
.contact-row b { color: var(--ink); display: block; font-size: 13px; margin-bottom: 1px; }
.qr-box { display: flex; gap: 14px; align-items: center; margin-top: 6px; }
.qr-box img { width: 96px; height: 96px; object-fit: cover; border-radius: 12px; border: 1px solid var(--line); }
.qr-box span { font-size: 13px; color: var(--ink-light); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.field input, .field select, .field textarea {
  font-family: inherit; font-size: 14.5px; color: var(--ink);
  border: 1px solid var(--line); border-radius: 11px; padding: 12px 14px;
  background: #fdfbf8; outline: none; transition: border-color .2s, box-shadow .2s, background .2s;
  width: 100%;
}
.field textarea { resize: vertical; min-height: 104px; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--violet); background: #fff;
  box-shadow: 0 0 0 3px rgba(106,76,240,.12);
}
.form-grid .btn-primary { border: 0; cursor: pointer; font-family: inherit; width: 100%; justify-content: center; margin-top: 4px; }
.form-tip { font-size: 12.5px; color: var(--ink-light); margin-top: 10px; }

/* ============ FAQ ============ */
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  overflow: hidden; transition: border-color .2s, box-shadow .2s;
}
.faq-item.open { border-color: rgba(255,90,60,.35); box-shadow: var(--shadow-sm); }
.faq-q {
  width: 100%; text-align: left; font-family: inherit; cursor: pointer;
  background: none; border: 0; padding: 18px 22px; font-size: 15px; font-weight: 600;
  color: var(--ink); display: flex; justify-content: space-between; align-items: center; gap: 14px;
}
.faq-q .ico { flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; background: var(--paper-2); color: var(--violet); display: flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 800; transition: transform .25s, background .25s, color .25s; }
.faq-item.open .faq-q .ico { transform: rotate(45deg); background: var(--brand); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .32s ease; }
.faq-a p { padding: 0 22px 18px; font-size: 14px; color: var(--ink-soft); }

/* ============ WIKI / NEWS ============ */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
.mini-list { display: grid; gap: 12px; }
.mini-item {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 16px 18px; transition: transform .2s, border-color .2s, box-shadow .2s;
  display: block;
}
.mini-item:hover { transform: translateX(4px); border-color: rgba(18,179,160,.4); box-shadow: var(--shadow-sm); }
.mini-item b { font-size: 14.5px; display: block; margin-bottom: 3px; }
.mini-item span { font-size: 13px; color: var(--ink-light); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 18px; }
.tag-cloud a {
  font-size: 13px; color: var(--ink-soft); background: #fff; border: 1px solid var(--line);
  padding: 6px 13px; border-radius: 999px; transition: all .2s;
}
.tag-cloud a:hover { color: #fff; background: var(--violet); border-color: var(--violet); }

/* ============ JOIN ============ */
.join-band {
  background: linear-gradient(130deg, #1d2a44 0%, #2f2356 48%, #0f4b52 100%);
  border-radius: 26px; padding: 44px 40px; color: #fff;
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 32px; align-items: center;
  box-shadow: var(--shadow-lg);
}
.join-band h2 { font-size: clamp(22px, 2.6vw, 30px); margin-bottom: 12px; letter-spacing: -.3px; }
.join-band p { font-size: 14.5px; color: rgba(255,255,255,.8); }
.join-steps { display: grid; gap: 10px; margin-top: 18px; }
.join-steps li { font-size: 14px; color: rgba(255,255,255,.86); display: flex; gap: 10px; align-items: flex-start; }
.join-steps li::before { content: "✓"; color: #4fd6c3; font-weight: 800; }
.join-cta { display: flex; flex-direction: column; gap: 12px; }
.join-cta .btn-primary { justify-content: center; }
.join-cta .btn-ghost { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.3); color: #fff; justify-content: center; }
.join-cta .btn-ghost:hover { background: rgba(255,255,255,.16); border-color: #fff; color: #fff; }

/* ============ FOOTER ============ */
.site-footer {
  background: #141c2e; color: #c6cedd; margin-top: 62px; padding: 46px 0 22px;
}
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 30px; }
.site-footer h3 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.site-footer p { font-size: 13.5px; color: #9aa6bb; }
.foot-links { display: grid; gap: 9px; }
.foot-links a { font-size: 13.5px; color: #9aa6bb; transition: color .2s; }
.foot-links a:hover { color: #ff8b6a; }
.foot-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.foot-brand img { width: 128px;  }
.foot-brand span { color: #fff; font-weight: 800; font-size: 17px; }
.foot-contact { font-size: 13.5px; color: #9aa6bb; display: grid; gap: 7px; }
.foot-contact b { color: #e3e9f4; font-weight: 600; }
.foot-bottom {
  margin-top: 34px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.10);
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center;
  font-size: 12.5px; color: #8391a8;
}
.foot-bottom a { color: #8391a8; }
.foot-bottom a:hover { color: #ff8b6a; }

/* ============ FLOAT ============ */
.float-stack { position: fixed; right: 18px; bottom: 24px; z-index: 80; display: flex; flex-direction: column; gap: 10px; align-items: flex-end; }
.float-btn {
  width: 48px; height: 48px; border-radius: 50%; border: 0; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: #fff;
  box-shadow: 0 10px 24px rgba(22,35,58,.2); transition: transform .2s, box-shadow .2s;
}
.float-btn:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(22,35,58,.28); }
.float-kf { background: linear-gradient(135deg, #12b3a0, #4fd6c3); }
.float-top { background: linear-gradient(135deg, #46536b, #2b3547); opacity: 0; pointer-events: none; }
.float-top.show { opacity: 1; pointer-events: auto; }
.kf-pop {
  display: none; position: absolute; right: 60px; bottom: 0;
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 14px; box-shadow: var(--shadow-lg); width: 190px; text-align: center;
}
.kf-pop.show { display: block; animation: fadeUp .3s ease both; }
.kf-pop img { width: 100%; border-radius: 10px; margin-bottom: 8px; }
.kf-pop span { font-size: 12.5px; color: var(--ink-soft); }

/* ============ REVEAL ============ */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .about-wrap, .two-col, .form-wrap, .join-band { grid-template-columns: 1fr; }
  .stats-band, .net-grid, .case-grid, .price-grid, .rev-grid, .flow { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-panel.active { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .nav-links {
    display: none; width: 100%; flex-direction: column; align-items: stretch;
    padding: 8px 0 12px; border-top: 1px solid var(--line); margin-top: 6px;
  }
  .nav-links.show { display: flex; }
  .nav-links a { padding: 11px 6px; }
  .menu-toggle { display: flex; }
  .nav-cta { order: 2; }
  .menu-toggle { order: 3; }
  .nav-inner { justify-content: space-between; }
  .brand { order: 1; }
}
@media (max-width: 720px) {
  .container { padding: 0 18px; }
  .hero { padding: 48px 0 44px; }
  .sec { padding: 46px 0; }
  .stats-band, .net-grid, .case-grid, .price-grid, .rev-grid, .flow, .services-grid, .media-duo { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; gap: 24px; }
  .form-wrap { padding: 24px 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .join-band { padding: 30px 22px; }
  .rate-panel { padding: 22px; }
  .foot-bottom { flex-direction: column; align-items: flex-start; }
}