:root {
  --dym-bg: #07070d;
  --dym-surface: #11111c;
  --dym-line: rgba(255, 255, 255, 0.08);
  --dym-text: #ececf2;
  --dym-muted: #9a9ab0;
  --dym-pink: #ff2d55;
  --dym-cyan: #00e8ff;
  --dym-magenta: #d400ff;
  --dym-gold: #ffc94a;
  --dym-header: 56px;
  --dym-fixed: 0px;
  --dym-radius: 14px;
  --dym-font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--dym-font);
  background: var(--dym-bg);
  color: var(--dym-text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.has-fixed-dl { padding-top: var(--dym-fixed); }

img { max-width: 100%; height: auto; display: block; }
a { color: var(--dym-cyan); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--dym-pink); }

.dym-wrap {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

/* ── Header ── */
.dym-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  height: var(--dym-header);
  background: rgba(7, 7, 13, 0.82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--dym-line);
  transition: box-shadow 0.3s;
}

.dym-header.is-scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
}

.dym-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.dym-logo img { height: 30px; width: auto; }

.dym-nav {
  display: none;
  gap: 1.4rem;
  font-size: 0.9rem;
}

.dym-nav a {
  color: var(--dym-muted);
  font-weight: 500;
}

.dym-nav a:hover,
.dym-nav a.is-on { color: #fff; }

.dym-btn-dl {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 1rem;
  background: linear-gradient(135deg, var(--dym-pink), #c4006a);
  color: #fff !important;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 0 20px rgba(255, 45, 85, 0.35);
}

.dym-btn-dl:hover { filter: brightness(1.1); color: #fff !important; }

@media (max-width: 767px) {
  .dym-btn-dl--desktop { display: none !important; }
}

.dym-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.dym-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s;
}

.dym-drawer {
  position: fixed;
  top: var(--dym-header);
  right: 0;
  width: min(280px, 85vw);
  height: calc(100vh - var(--dym-header));
  background: var(--dym-surface);
  border-left: 1px solid var(--dym-line);
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 850;
  padding: 1.2rem 0;
  overflow-y: auto;
}

.dym-drawer.is-open {
  transform: translateX(0);
  z-index: 950;
}

body.dym-drawer-open .dym-fixed-dl {
  display: none !important;
  transform: translateY(-110%) !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

body.dym-drawer-open.has-fixed-dl {
  padding-top: 0;
}

.dym-drawer a {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--dym-muted);
  font-size: 0.95rem;
  border-left: 3px solid transparent;
}

.dym-drawer a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
  border-left-color: var(--dym-pink);
}

/* ── Fixed download bar ── */
.dym-fixed-dl {
  position: fixed;
  top: var(--dym-header);
  left: 0;
  right: 0;
  z-index: 880;
  background: rgba(10, 10, 18, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--dym-line);
  padding: 8px 0;
  transform: translateY(-110%);
  opacity: 0;
  transition: transform 0.35s, opacity 0.35s;
  pointer-events: none;
}

.dym-fixed-dl.is-show {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.dym-hidden { display: none !important; }

/* ── Ads grid ── */
.dym-ads-grid,
#ads {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px 4px;
  background: transparent;
}

.dym-ads-grid > div,
#ads > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: calc(25% - 4px);
  min-width: 72px;
  max-width: 90px;
  box-sizing: border-box;
}

.dym-ads-grid img,
#ads img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  transition: transform 0.18s, box-shadow 0.18s;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.dym-ads-grid a,
#ads a { display: inline-block; border-radius: 16px; }

.dym-ads-grid img:hover,
#ads img:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 22px rgba(255, 45, 85, 0.25);
}

.dym-ad-cap,
#ads .caption,
#ads figcaption {
  height: 15px;
  font-size: 11px;
  color: var(--dym-muted);
  text-align: center;
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 4px;
}

/* ── Download zone ── */
.dym-dl-zone {
  padding: calc(var(--dym-header) + 12px) 0 1.5rem;
  background: linear-gradient(180deg, #0e0e1a 0%, var(--dym-bg) 100%);
  border-bottom: 1px solid var(--dym-line);
}

.dym-dl-zone-inner {
  text-align: center;
}

.dym-dl-zone h1 {
  font-size: clamp(1.1rem, 4vw, 1.35rem);
  font-weight: 700;
  margin-bottom: 0.4rem;
  background: linear-gradient(90deg, #fff, var(--dym-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dym-dl-zone p {
  font-size: 0.85rem;
  color: var(--dym-muted);
  margin-bottom: 1rem;
}

/* ── Hero ── */
.dym-hero {
  position: relative;
  padding: 3rem 0 4rem;
  overflow: hidden;
}

.dym-hero::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -20%;
  width: 70%;
  height: 120%;
  background: radial-gradient(ellipse, rgba(255, 45, 85, 0.12) 0%, transparent 65%);
  pointer-events: none;
}

.dym-hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -15%;
  width: 50%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(0, 232, 255, 0.08) 0%, transparent 65%);
  pointer-events: none;
}

.dym-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.dym-hero-tag {
  display: inline-block;
  padding: 0.3rem 0.85rem;
  border: 1px solid rgba(0, 232, 255, 0.35);
  border-radius: 999px;
  font-size: 0.78rem;
  color: var(--dym-cyan);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.dym-hero h2 {
  font-size: clamp(1.8rem, 7vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.dym-glitch {
  position: relative;
  display: inline;
}

.dym-glitch::before,
.dym-glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  overflow: hidden;
}

.dym-glitch::before {
  color: var(--dym-cyan);
  animation: dym-glitch1 3s infinite linear alternate-reverse;
  clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
}

.dym-glitch::after {
  color: var(--dym-magenta);
  animation: dym-glitch2 2.5s infinite linear alternate-reverse;
  clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
}

@keyframes dym-glitch1 {
  0% { transform: translate(0); }
  20% { transform: translate(-2px, 1px); }
  40% { transform: translate(2px, -1px); }
  60% { transform: translate(-1px, 2px); }
  80% { transform: translate(1px, -2px); }
  100% { transform: translate(0); }
}

@keyframes dym-glitch2 {
  0% { transform: translate(0); }
  25% { transform: translate(2px, -1px); }
  50% { transform: translate(-2px, 1px); }
  75% { transform: translate(1px, 2px); }
  100% { transform: translate(0); }
}

.dym-hero-lead {
  color: var(--dym-muted);
  font-size: 1rem;
  margin-bottom: 1.5rem;
  max-width: 540px;
}

.dym-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.dym-btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.6rem;
  background: linear-gradient(135deg, var(--dym-pink), #a80050);
  color: #fff !important;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 4px 24px rgba(255, 45, 85, 0.4);
}

.dym-btn-outline {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.4rem;
  border: 1px solid var(--dym-line);
  color: var(--dym-text) !important;
  border-radius: 999px;
  font-size: 0.9rem;
}

.dym-hero-visual {
  position: relative;
  max-width: 280px;
  margin: 0 auto;
}

.dym-phone-frame {
  border-radius: 28px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(0, 232, 255, 0.15),
    0 24px 60px rgba(0, 0, 0, 0.55),
    inset 0 0 40px rgba(255, 45, 85, 0.06);
}

.dym-phone-frame img { width: 100%; }

.dym-phone-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle, rgba(255, 45, 85, 0.15), transparent 60%);
  z-index: -1;
}

/* ── Stats strip ── */
.dym-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--dym-line);
  border: 1px solid var(--dym-line);
  border-radius: var(--dym-radius);
  overflow: hidden;
  margin: 2rem 0;
}

.dym-stat {
  background: var(--dym-surface);
  padding: 1.2rem 1rem;
  text-align: center;
}

.dym-stat strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dym-pink);
  line-height: 1.2;
}

.dym-stat span {
  font-size: 0.78rem;
  color: var(--dym-muted);
}

/* ── Section common ── */
.dym-section {
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--dym-line);
}

.dym-section-head {
  margin-bottom: 2rem;
}

.dym-section-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--dym-pink);
  letter-spacing: 0.15em;
  margin-bottom: 0.5rem;
}

.dym-section-head h2 {
  font-size: clamp(1.4rem, 5vw, 1.85rem);
  font-weight: 800;
  line-height: 1.3;
}

.dym-section-head p {
  color: var(--dym-muted);
  margin-top: 0.6rem;
  font-size: 0.95rem;
}

/* ── 3:7 split blocks ── */
.dym-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}

.dym-split-img {
  position: relative;
}

.dym-split-img img {
  border-radius: var(--dym-radius);
  border: 1px solid var(--dym-line);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.dym-split-img figcaption {
  font-size: 0.75rem;
  color: var(--dym-muted);
  text-align: center;
  margin-top: 0.5rem;
}

.dym-split-text h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  padding-left: 0.85rem;
  border-left: 3px solid var(--dym-pink);
}

.dym-split-text p {
  color: var(--dym-muted);
  font-size: 0.92rem;
  margin-bottom: 0.85rem;
}

.dym-split-text p:last-child { margin-bottom: 0; }

.dym-split-text ul {
  list-style: none;
  margin: 0.75rem 0;
}

.dym-split-text li {
  position: relative;
  padding-left: 1.2rem;
  color: var(--dym-muted);
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

.dym-split-text li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--dym-cyan);
}

/* ── Feature pills ── */
.dym-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.dym-pill {
  padding: 0.3rem 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--dym-line);
  border-radius: 999px;
  font-size: 0.78rem;
  color: var(--dym-muted);
}

/* ── Prose block (pure text SEO) ── */
.dym-prose {
  max-width: 780px;
}

.dym-prose h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 1.8rem 0 0.75rem;
  color: #fff;
}

.dym-prose p {
  color: var(--dym-muted);
  font-size: 0.92rem;
  margin-bottom: 0.85rem;
}

/* ── Steps ── */
.dym-steps {
  display: grid;
  gap: 1rem;
}

.dym-step {
  display: flex;
  gap: 1rem;
  padding: 1.2rem;
  background: var(--dym-surface);
  border-radius: var(--dym-radius);
  border: 1px solid var(--dym-line);
}

.dym-step-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--dym-pink), var(--dym-magenta));
  border-radius: 10px;
  font-weight: 800;
  font-size: 0.9rem;
}

.dym-step h4 {
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
}

.dym-step p {
  font-size: 0.85rem;
  color: var(--dym-muted);
}

/* ── FAQ ── */
.dym-faq details {
  border-bottom: 1px solid var(--dym-line);
  padding: 1rem 0;
}

.dym-faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dym-faq summary::after {
  content: "+";
  color: var(--dym-pink);
  font-size: 1.2rem;
}

.dym-faq details[open] summary::after { content: "−"; }

.dym-faq p {
  color: var(--dym-muted);
  font-size: 0.88rem;
  margin-top: 0.75rem;
  padding-right: 1.5rem;
}

/* ── CTA banner ── */
.dym-cta {
  text-align: center;
  padding: 3rem 1.5rem;
  background: linear-gradient(135deg, rgba(255, 45, 85, 0.12), rgba(0, 232, 255, 0.06));
  border: 1px solid var(--dym-line);
  border-radius: var(--dym-radius);
  margin: 2rem 0;
}

.dym-cta h3 {
  font-size: 1.3rem;
  margin-bottom: 0.6rem;
}

.dym-cta p {
  color: var(--dym-muted);
  font-size: 0.9rem;
  margin-bottom: 1.2rem;
}

/* ── Footer ── */
.dym-footer {
  padding: 2.5rem 0 2rem;
  border-top: 1px solid var(--dym-line);
  background: #050508;
}

.dym-footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.dym-footer h4 {
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  color: #fff;
}

.dym-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.2rem;
}

.dym-footer-links a {
  font-size: 0.82rem;
  color: var(--dym-muted);
}

.dym-footer-copy {
  text-align: center;
  font-size: 0.75rem;
  color: #555;
  padding-top: 1.5rem;
  border-top: 1px solid var(--dym-line);
}

/* ── Sub pages ── */
.dym-page-hero {
  padding: calc(var(--dym-header) + 2rem) 0 2rem;
  border-bottom: 1px solid var(--dym-line);
}

.dym-page-hero h1 {
  font-size: clamp(1.5rem, 5vw, 2rem);
  font-weight: 800;
}

.dym-page-hero p {
  color: var(--dym-muted);
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.dym-article {
  padding: 2.5rem 0 4rem;
}

.dym-article h2 {
  font-size: 1.1rem;
  margin: 2rem 0 0.75rem;
  color: #fff;
}

.dym-article h3 {
  font-size: 1rem;
  margin: 1.5rem 0 0.6rem;
  color: #ddd;
}

.dym-article p,
.dym-article li {
  color: var(--dym-muted);
  font-size: 0.9rem;
  margin-bottom: 0.7rem;
}

.dym-article ul {
  padding-left: 1.2rem;
  margin-bottom: 1rem;
}

/* ── Error pages ── */
.dym-error {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 1rem;
}

.dym-error-code {
  font-size: 5rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--dym-pink), var(--dym-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dym-error h1 {
  font-size: 1.3rem;
  margin: 1rem 0 0.5rem;
}

.dym-error p {
  color: var(--dym-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

/* ── Desktop ── */
@media (min-width: 768px) {
  .dym-nav { display: flex; }
  .dym-menu-btn { display: none; }

  .dym-hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .dym-hero-visual { margin: 0 0 0 auto; }

  .dym-stats { grid-template-columns: repeat(4, 1fr); }

  .dym-split {
    grid-template-columns: 3fr 7fr;
    gap: 2rem;
  }

  .dym-split--flip .dym-split-img { order: 2; }
  .dym-split--flip .dym-split-text { order: 1; }

  .dym-footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .dym-steps { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .dym-ads-grid > div,
  #ads > div {
    width: 70px;
    max-width: 70px;
  }
}