:root {
  --bg: #07111f;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.13);
  --text: #eff7ff;
  --muted: rgba(239, 247, 255, 0.74);
  --soft: rgba(239, 247, 255, 0.56);
  --line: rgba(255, 255, 255, 0.14);
  --primary: #4fffc2;
  --secondary: #47a3ff;
  --accent: #9b7cff;
  --danger: #ff6a8a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  --radius: 22px;
  --max: 1180px;
  color-scheme: dark;
  font-family:
    "Inter", "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC",
    system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 14% 12%, rgba(79, 255, 194, 0.18), transparent 28rem),
    radial-gradient(circle at 82% 8%, rgba(71, 163, 255, 0.18), transparent 30rem),
    linear-gradient(180deg, #07111f 0%, #09172a 50%, #08101d 100%);
  overflow-x: hidden;
}

body.theme-cyan {
  --primary: #3fffe0;
  --secondary: #3d8dff;
  --accent: #75ff94;
  background:
    radial-gradient(circle at 15% 20%, rgba(63, 255, 224, 0.2), transparent 24rem),
    radial-gradient(circle at 86% 14%, rgba(61, 141, 255, 0.2), transparent 29rem),
    linear-gradient(180deg, #05111a 0%, #071a2e 55%, #06101e 100%);
}

body.theme-blue {
  --primary: #55d4ff;
  --secondary: #6c8cff;
  --accent: #35ffc5;
  background:
    radial-gradient(circle at 75% 12%, rgba(85, 212, 255, 0.22), transparent 28rem),
    radial-gradient(circle at 10% 22%, rgba(108, 140, 255, 0.18), transparent 26rem),
    linear-gradient(180deg, #061225 0%, #08182c 56%, #050b16 100%);
}

body.theme-green {
  --primary: #59ff9c;
  --secondary: #35d6ff;
  --accent: #ffe66b;
  background:
    radial-gradient(circle at 84% 18%, rgba(89, 255, 156, 0.17), transparent 27rem),
    radial-gradient(circle at 12% 8%, rgba(53, 214, 255, 0.18), transparent 26rem),
    linear-gradient(180deg, #06140f 0%, #09201e 56%, #061012 100%);
}

body.theme-violet {
  --primary: #8ff8ff;
  --secondary: #9b7cff;
  --accent: #ff7ccf;
  background:
    radial-gradient(circle at 20% 12%, rgba(143, 248, 255, 0.2), transparent 26rem),
    radial-gradient(circle at 84% 10%, rgba(155, 124, 255, 0.18), transparent 28rem),
    linear-gradient(180deg, #0b1022 0%, #11152e 55%, #080b17 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.page-shell {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
}

.page-shell::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 80%);
  pointer-events: none;
}

.page-shell::after {
  content: "";
  position: fixed;
  inset: auto -12vw 0;
  z-index: -1;
  height: 40vh;
  background: linear-gradient(90deg, transparent, rgba(79, 255, 194, 0.14), transparent);
  filter: blur(42px);
  pointer-events: none;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(20px);
  background: rgba(5, 12, 23, 0.72);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  width: min(var(--max), calc(100% - 32px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 28px rgba(79, 255, 194, 0.24);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand small {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: var(--soft);
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta {
  padding: 10px 15px;
  border: 1px solid rgba(79, 255, 194, 0.36);
  border-radius: 999px;
  color: var(--primary);
  background: rgba(79, 255, 194, 0.08);
}

.section {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.96fr);
  gap: 54px;
  align-items: center;
  padding: 86px 0 54px;
}

.hero.compact {
  padding-top: 70px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  padding: 8px 12px;
  border: 1px solid rgba(79, 255, 194, 0.28);
  border-radius: 999px;
  color: var(--primary);
  background: rgba(255, 255, 255, 0.06);
  font-size: 13px;
  font-weight: 700;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--primary);
  box-shadow: 0 0 18px var(--primary);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(40px, 5.2vw, 68px);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-title-accent {
  color: transparent;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
}

.lead {
  max-width: 680px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-bottom: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 13px 18px;
  border: 1px solid var(--line);
  border-radius: 13px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.14);
  font-weight: 800;
}

.btn.primary {
  border-color: rgba(79, 255, 194, 0.42);
  color: #04111d;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 18px 44px rgba(79, 255, 194, 0.22);
}

.btn.secondary {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}

.btn:hover {
  transform: translateY(-1px);
}

.mini-note {
  color: var(--soft);
  font-size: 13px;
  line-height: 1.7;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.06);
  font-size: 13px;
}

.visual-panel {
  position: relative;
  min-height: 500px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.055)),
    rgba(5, 12, 23, 0.72);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.visual-panel::before {
  content: "";
  position: absolute;
  inset: -40%;
  background:
    linear-gradient(115deg, transparent 35%, rgba(255, 255, 255, 0.14), transparent 62%),
    radial-gradient(circle, rgba(79, 255, 194, 0.14), transparent 48%);
  transform: rotate(8deg);
  animation: scan 8s linear infinite;
}

.visual-panel > * {
  position: relative;
}

@keyframes scan {
  0% {
    transform: translateX(-12%) rotate(8deg);
  }
  50% {
    transform: translateX(10%) rotate(8deg);
  }
  100% {
    transform: translateX(-12%) rotate(8deg);
  }
}

.phone-card {
  width: min(82%, 380px);
  margin: 40px auto 0;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
}

.phone-screen {
  border-radius: 21px;
  overflow: hidden;
  background: #fff;
}

.phone-screen img {
  width: 100%;
}

.generated-visual {
  width: min(88%, 560px);
  margin: 36px auto 0;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(12px);
}

.generated-visual img {
  width: 100%;
  border-radius: 18px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.floating-card {
  position: absolute;
  right: 28px;
  bottom: 30px;
  width: min(310px, calc(100% - 56px));
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 20px;
  background: rgba(5, 12, 23, 0.78);
  backdrop-filter: blur(18px);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.28);
}

.floating-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 20px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.metric {
  padding: 14px 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.07);
}

.metric b {
  display: block;
  margin-bottom: 4px;
  color: var(--primary);
  font-size: 21px;
}

.metric span {
  color: var(--soft);
  font-size: 12px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: end;
  margin: 54px auto 24px;
}

.section-head h2 {
  max-width: 720px;
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.15;
}

.section-head p {
  max-width: 420px;
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.75;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  min-height: 172px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.16);
}

.feature-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  border-radius: 14px;
  color: #06111e;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  font-weight: 900;
}

.feature-card h3 {
  margin-bottom: 9px;
  font-size: 20px;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.75;
}

.split {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 24px;
  align-items: stretch;
  margin-top: 24px;
}

.info-panel,
.qr-panel,
.friend-panel {
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.18);
}

.info-panel {
  padding: 30px;
}

.info-panel h2 {
  margin-bottom: 14px;
  font-size: 34px;
}

.steps {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.step {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  align-items: start;
  padding: 15px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.055);
}

.step-num {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: #04111d;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  font-weight: 900;
}

.step b {
  display: block;
  margin-bottom: 5px;
}

.step span {
  color: var(--muted);
  line-height: 1.65;
}

.qr-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 24px;
}

.qr-card {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: rgba(5, 12, 23, 0.55);
}

.qr-card img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  margin: 0 auto 14px;
  border-radius: 0;
  background: #fff;
}

.qr-card.is-mini img {
  padding: 10px;
  border-radius: 999px;
  box-shadow: 0 0 30px rgba(79, 255, 194, 0.18);
}

.qr-card.is-support img {
  padding: 0;
  border-radius: 0;
}

.qr-card h3 {
  margin-bottom: 7px;
}

.qr-card p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.65;
  font-size: 14px;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 22px;
}

.workflow-card {
  min-height: 150px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.07);
}

.workflow-card b {
  display: block;
  margin-bottom: 10px;
  color: var(--primary);
}

.workflow-card p {
  color: var(--muted);
  line-height: 1.7;
}

.cta-band {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  margin: 58px auto 28px;
  padding: 34px;
  border: 1px solid rgba(79, 255, 194, 0.22);
  border-radius: 26px;
  background:
    radial-gradient(circle at 10% 20%, rgba(79, 255, 194, 0.17), transparent 24rem),
    rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.cta-band h2 {
  margin-bottom: 8px;
  font-size: 34px;
}

.cta-band p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.75;
}

.friend-panel {
  margin: 24px auto 30px;
  padding: 22px;
}

.friend-title {
  margin-bottom: 14px;
  color: var(--soft);
  font-weight: 800;
}

.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.friend-links a {
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.055);
  font-size: 13px;
}

.friend-links a:hover {
  color: var(--primary);
  border-color: rgba(79, 255, 194, 0.34);
}

.article-list-panel {
  margin-top: 34px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.065);
  box-shadow: 0 18px 70px rgba(0, 0, 0, 0.18);
}

.article-list-title {
  margin-bottom: 14px;
  color: var(--primary);
  font-size: 18px;
  font-weight: 900;
}

.article-list {
  display: grid;
  gap: 10px;
}

.article-list a {
  display: block;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  color: var(--text);
  background: rgba(5, 12, 23, 0.36);
  font-weight: 800;
  line-height: 1.45;
}

.article-list a:hover {
  border-color: rgba(79, 255, 194, 0.42);
  color: var(--primary);
  background: rgba(79, 255, 194, 0.08);
}

.article-page {
  padding: 70px 0 40px;
}

.article-wrap {
  max-width: 900px;
  margin: 0 auto;
}

.article-breadcrumb {
  margin-bottom: 16px;
  color: var(--soft);
  font-size: 14px;
}

.article-breadcrumb a {
  color: var(--primary);
}

.article-body {
  padding: 34px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.22);
}

.article-body h1 {
  margin-bottom: 18px;
  font-size: clamp(34px, 4.2vw, 54px);
}

.article-body h2 {
  margin: 30px 0 12px;
  color: var(--primary);
  font-size: 24px;
}

.article-body p,
.article-body li {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.article-body ul,
.article-body ol {
  padding-left: 22px;
}

.article-body .article-note {
  margin: 24px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--primary);
  border-radius: 12px;
  background: rgba(79, 255, 194, 0.08);
}

.article-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.footer {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 42px;
  color: var(--soft);
  font-size: 13px;
  line-height: 1.8;
}

.footer-line {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.icp-slot {
  display: none;
}

.icp-slot.is-visible {
  display: inline-flex;
  gap: 8px;
}

.matrix-visual {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 10px;
  padding: 34px;
}

.matrix-cell {
  aspect-ratio: 1;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  background: rgba(255, 255, 255, 0.08);
}

.matrix-cell:nth-child(3n) {
  background: linear-gradient(135deg, rgba(79, 255, 194, 0.32), rgba(71, 163, 255, 0.14));
}

.matrix-cell:nth-child(5n) {
  box-shadow: inset 0 0 0 1px rgba(79, 255, 194, 0.25), 0 0 28px rgba(79, 255, 194, 0.12);
}

.dashboard {
  margin: 40px auto 0;
  width: min(88%, 430px);
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 22px;
  background: rgba(5, 12, 23, 0.72);
}

.bar {
  height: 11px;
  margin: 12px 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.video-frame {
  width: min(86%, 460px);
  margin: 40px auto 0;
  padding: 18px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  background: rgba(255, 255, 255, 0.08);
}

.video-canvas {
  aspect-ratio: 16 / 10;
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(79, 255, 194, 0.16), transparent 34%),
    linear-gradient(160deg, rgba(71, 163, 255, 0.2), transparent 58%),
    #091626;
  position: relative;
  overflow: hidden;
}

.video-canvas::before {
  content: "水印区域";
  position: absolute;
  right: 22px;
  top: 22px;
  padding: 8px 12px;
  border: 1px dashed rgba(255, 255, 255, 0.42);
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.video-canvas::after {
  content: "AI 擦除处理中";
  position: absolute;
  left: 24px;
  bottom: 24px;
  padding: 10px 13px;
  border-radius: 12px;
  color: #04111d;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  font-weight: 800;
}

.creator-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  padding: 34px;
}

.creator-tile {
  min-height: 180px;
  padding: 22px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  background: rgba(255, 255, 255, 0.075);
}

.creator-tile:nth-child(1) {
  grid-column: 1 / 3;
}

.creator-tile b {
  display: block;
  margin-bottom: 10px;
  color: var(--primary);
  font-size: 22px;
}

.creator-tile p {
  color: var(--muted);
  line-height: 1.72;
}

.mini-visual {
  display: grid;
  gap: 18px;
  padding: 34px;
}

.mini-card {
  padding: 20px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  background: rgba(255, 255, 255, 0.075);
}

.mini-card b {
  display: block;
  margin-bottom: 8px;
  color: var(--primary);
}

.mini-card p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.72;
}

@media (max-width: 920px) {
  .nav-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 3px;
  }

  .hero,
  .split,
  .cta-band {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 50px;
  }

  .visual-panel {
    min-height: 460px;
  }

  .feature-grid,
  .workflow {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-head {
    display: block;
  }

  .section-head p {
    margin-top: 12px;
  }
}

@media (max-width: 640px) {
  .section,
  .footer,
  .nav-inner {
    width: min(100% - 24px, var(--max));
  }

  h1 {
    font-size: 38px;
  }

  .lead {
    font-size: 16px;
  }

  .feature-grid,
  .workflow,
  .qr-panel,
  .metric-grid,
  .creator-strip {
    grid-template-columns: 1fr;
  }

  .creator-tile:nth-child(1) {
    grid-column: auto;
  }

  .visual-panel {
    min-height: 420px;
    border-radius: 22px;
  }

  .phone-card {
    width: calc(100% - 34px);
    margin-top: 24px;
  }

  .floating-card {
    left: 16px;
    right: 16px;
    bottom: 16px;
    width: auto;
  }

  .matrix-visual {
    grid-template-columns: repeat(5, 1fr);
    padding: 22px;
  }

  .cta-band,
  .info-panel,
  .qr-panel,
  .friend-panel,
  .article-list-panel,
  .article-body {
    padding: 22px;
  }
}