:root {
  --ink: #101828;
  --muted: #5f6b7a;
  --line: #e5e9f0;
  --soft: #f4f7fb;
  --blue: #1473e6;
  --blue2: #1d8cff;
  --blue-deep: #0b4ea8;
  --navy: #0c1730;
  --navy-2: #122445;
  --green: #039855;
  --shadow: 0 28px 70px rgba(16, 36, 72, 0.16);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
.t-zh { display: none !important; }
html[data-lang="zh"] .t-en { display: none !important; }
html[data-lang="zh"] .t-zh { display: revert !important; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: Inter, "Segoe UI", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
button, .button { font: inherit; }
img { max-width: 100%; display: block; }
.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 76px;
  width: min(1280px, calc(100% - 40px));
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(229, 233, 240, 0.8);
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: 0 8px 18px rgba(20, 115, 230, 0.22);
}
.brand strong { display: block; font-size: 18px; line-height: 1.1; }
.brand small { display: block; margin-top: 3px; color: #667085; font-size: 12px; }
.site-header nav { display: flex; align-items: center; gap: 22px; font-size: 15px; font-weight: 650; }
.site-header nav a:hover { color: var(--blue); }
.header-tools { display: flex; align-items: center; gap: 12px; }
html[lang="zh-CN"] body,
html[lang="zh-Hans"] body {
  font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
html[lang="zh-TW"] body,
html[lang="zh-Hant"] body {
  font-family: Inter, "Segoe UI", "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif;
}
html[lang="ja"] body {
  font-family: Inter, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", "Noto Sans JP", sans-serif;
}
html[lang="ko"] body {
  font-family: Inter, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif;
}

.locale-picker { position: relative; }
.locale-picker summary {
  list-style: none;
  cursor: pointer;
  min-height: 36px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--blue);
  font-size: 13px;
  font-weight: 750;
}
.locale-picker summary::-webkit-details-marker { display: none; }
.locale-picker > div {
  position: absolute;
  z-index: 30;
  right: 0;
  top: calc(100% + 8px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-width: 260px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(16, 24, 40, 0.14);
}
.locale-picker a {
  padding: 8px 10px;
  border-radius: 8px;
  color: #475467;
  font-size: 13px;
  font-weight: 650;
}
.locale-picker a[aria-current="page"] {
  background: #e8f2ff;
  color: var(--blue);
  font-weight: 800;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 0;
  border-radius: 12px;
  font-weight: 750;
  cursor: pointer;
}
.button.small { min-height: 44px; padding: 0 16px; background: var(--ink); color: #fff; font-size: 14px; }
.button.primary {
  min-height: 56px;
  min-width: 240px;
  padding: 8px 22px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue2), var(--blue-deep));
  box-shadow: 0 16px 32px rgba(20, 115, 230, 0.28);
}
.button.primary:hover { transform: translateY(-1px); }
.button.primary small { display: block; font-size: 12px; font-weight: 600; opacity: 0.84; }
.button.light { min-height: 56px; padding: 0 22px; background: #fff; color: var(--blue); }
.button.ghost {
  min-height: 56px;
  padding: 0 18px;
  border: 1px solid #d7deea;
  background: #fff;
  color: var(--ink);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 56px;
  align-items: center;
  padding: 72px 0 80px;
  overflow: hidden;
}
.hero:before {
  content: "";
  position: absolute;
  width: 720px;
  height: 720px;
  right: -160px;
  top: -180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(20, 115, 230, 0.16), transparent 68%);
  pointer-events: none;
}
.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  font-weight: 800;
}
.windows-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-right: 16px;
  background: #1473e6;
  box-shadow: 11px 0 #2d8df0, 0 11px #0d64d0, 11px 11px #1473e6;
  transform: translateY(-4px);
}
h1 {
  margin: 0 0 20px;
  color: var(--ink);
  font-size: clamp(40px, 5vw, 62px);
  line-height: 1.04;
  letter-spacing: -0.045em;
}
h1 .accent { color: var(--blue); }
.lede { max-width: 540px; margin: 0 0 28px; color: var(--muted); font-size: 19px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.download-meta { margin: 14px 0 0; color: #667085; font-size: 13px; }
.download-meta code { font-family: Consolas, ui-monospace, monospace; font-size: 11px; overflow-wrap: anywhere; }
.trust-row { display: flex; flex-wrap: wrap; gap: 14px 18px; margin-top: 22px; font-size: 14px; font-weight: 700; color: #344054; }
.trust-row b { color: var(--green); margin-right: 6px; }

.hero-visual { position: relative; }
.shot-frame {
  border: 1px solid #d7deea;
  border-radius: 20px;
  overflow: hidden;
  background: #111827;
  box-shadow: var(--shadow);
}
.shot-frame img { width: 100%; height: auto; object-fit: contain; }
.float-chip {
  position: absolute;
  display: flex;
  flex-direction: column;
  padding: 12px 16px;
  border: 1px solid #dbe4f0;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 16px 36px rgba(16, 24, 40, 0.12);
}
.float-chip b { color: var(--blue); font-size: 22px; line-height: 1; }
.float-chip span { color: #667085; font-size: 12px; font-weight: 650; }
.chip-a { left: -18px; bottom: 48px; }
.chip-b { right: -12px; top: 28px; }

.proof {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #f6f9fd;
}
.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 26px 0;
}
.proof-grid div { padding: 4px 18px; text-align: center; border-right: 1px solid #d9e3ef; }
.proof-grid div:last-child { border: 0; }
.proof-grid b { display: block; color: var(--blue); font-size: 26px; letter-spacing: -0.03em; }
.proof-grid span { color: #5f6b7a; font-size: 14px; }

.section { padding: 96px 0; }
.section h2 {
  margin: 0 auto 14px;
  max-width: 760px;
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.035em;
  text-align: center;
}
.section-lede { max-width: 680px; margin: 0 auto 48px; color: var(--muted); text-align: center; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-grid article {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.feature-grid article:hover {
  transform: translateY(-3px);
  border-color: #c5daf7;
  box-shadow: 0 18px 40px rgba(16, 36, 72, 0.08);
}
.feature-icon {
  width: 84px;
  height: 84px;
  display: grid;
  place-items: center;
  border-radius: 22px;
  background: #e8f2ff;
  color: var(--blue);
}
.feature-icon img { width: 48px; height: 48px; }
.feature-grid h3 { margin: 22px 0 8px; font-size: 19px; }
.feature-grid p { margin: 0; color: var(--muted); font-size: 15px; }

.shots { background: var(--soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.shot-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.shot-grid figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid #d7deea;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 14px 36px rgba(16, 24, 40, 0.07);
}
.shot-grid figure.wide { grid-column: 1 / -1; }
.shot-grid a { display: block; background: #111827; }
.shot-grid img { width: 100%; height: auto; object-fit: contain; transition: transform 0.25s; }
.shot-grid a:hover img { transform: scale(1.012); }
.shot-grid figcaption { padding: 18px 20px 20px; }
.shot-grid figcaption strong, .shot-grid figcaption span { display: block; }
.shot-grid figcaption span { margin-top: 4px; color: var(--muted); font-size: 14px; }

.workflow { background: var(--navy); color: #fff; }
.workflow .shell { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.workflow h2 { text-align: left; margin: 0 0 16px; max-width: none; }
.workflow .eyebrow { color: #8ec4ff; }
.workflow p { color: #c5d4ea; }
.steps { list-style: none; margin: 28px 0 0; padding: 0; }
.steps li { display: flex; gap: 16px; margin: 16px 0; }
.steps li > b {
  flex: 0 0 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #1d355c;
  color: #8ec4ff;
}
.steps strong, .steps small { display: block; }
.steps small { color: #a8bad4; font-size: 14px; }
.format-card {
  padding: 32px;
  border-radius: 22px;
  background: #fff;
  color: var(--ink);
  box-shadow: 0 28px 60px rgba(0, 0, 0, 0.22);
}
.format-card p { margin: 0 0 10px; color: #667085; font-size: 11px; font-weight: 800; letter-spacing: 0.14em; }
.format-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.format-pills span {
  padding: 7px 10px;
  border: 1px solid #d7e4f6;
  border-radius: 8px;
  background: #f4f8fd;
  color: #0b4ea8;
  font-size: 13px;
  font-weight: 750;
}
.format-card small { display: block; margin-top: 18px; color: #667085; font-size: 13px; }

.privacy { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 72px; align-items: center; }
.privacy h2 { text-align: left; margin: 0 0 16px; }
.privacy > div > p { color: var(--muted); }
.privacy ul { list-style: none; margin: 18px 0 0; padding: 0; }
.privacy li { margin: 10px 0; }
.privacy li:before { content: "✓ "; color: var(--green); font-weight: 800; }
.privacy-visual {
  position: relative;
  min-height: 340px;
  display: grid;
  place-items: center;
  background: radial-gradient(circle, #e7f2ff 0 42%, transparent 43%);
}
.shield {
  width: 88px;
  height: 102px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(160deg, #3b9cf4, #0b4ea8);
  clip-path: polygon(50% 0, 95% 18%, 88% 72%, 50% 100%, 12% 72%, 5% 18%);
  z-index: 1;
}
.shield img { width: 34px; height: 34px; filter: brightness(0) invert(1); }
.privacy-visual p { position: absolute; bottom: 18px; text-align: center; color: #667085; font-size: 13px; }

.limits { background: #fffaf3; border-top: 1px solid #f0e2c8; border-bottom: 1px solid #f0e2c8; }
.limits h2 { text-align: left; margin: 0 0 12px; }
.limits .shell { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 48px; align-items: start; }
.limits p, .limits li { color: #6a5840; }
.limits ul { margin: 0; padding-left: 18px; }
.limits li { margin: 10px 0; }

.faq { display: grid; grid-template-columns: 0.7fr 1fr; gap: 72px; }
.faq h2 { text-align: left; margin: 0 0 12px; }
.faq > div > p { color: var(--muted); }
.faq-list details { padding: 16px 0; border-bottom: 1px solid var(--line); }
.faq-list summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  font-weight: 750;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span:last-child { color: var(--blue); font-size: 22px; line-height: 1; }
.faq-list details[open] summary span:last-child { transform: rotate(45deg); }
.faq-list details p { margin: 8px 36px 0 0; color: var(--muted); }

.final-cta {
  margin: 0 20px 28px;
  padding: 78px 24px;
  border-radius: 24px;
  color: #fff;
  text-align: center;
  background: linear-gradient(135deg, #1d8cff, #0b4ea8);
}
.final-cta img { width: 58px; height: 58px; margin: 0 auto 18px; border-radius: 16px; }
.final-cta .eyebrow { color: #d6e9ff; }
.final-cta h2 { color: #fff; }
.final-cta p { max-width: 640px; margin: 0 auto 8px; color: #e7f2ff; }
.final-cta .button { margin-top: 18px; }

footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 42px 0 28px;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; font-size: 14px; font-weight: 700; }
footer > p {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: #98a2b3;
  font-size: 12px;
}

@media (max-width: 980px) {
  .site-header nav { display: none; }
  .hero, .workflow .shell, .privacy, .limits .shell, .faq { grid-template-columns: 1fr; gap: 36px; }
  .hero { padding-top: 48px; }
  .proof-grid, .feature-grid, .shot-grid { grid-template-columns: 1fr 1fr; }
  .shot-grid figure.wide { grid-column: auto; }
  .float-chip { display: none; }
  .workflow h2, .privacy h2, .limits h2, .faq h2 { text-align: center; }
}

@media (max-width: 700px) {
  .header-tools .button.small { display: none; }
  .proof-grid, .feature-grid, .shot-grid { grid-template-columns: 1fr; }
  .proof-grid div { border: 0; padding: 12px 0; border-bottom: 1px solid #d9e3ef; }
  .hero-actions { display: grid; }
  .button.primary, .button.ghost { width: 100%; }
  .section { padding: 72px 0; }
  footer { display: block; text-align: center; }
  .footer-links { justify-content: center; margin-top: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button, .feature-grid article, .shot-grid img { transition: none; }
}

/* Keep Disc Studio blue if this page is served under utilivera.com/styles.css */
.discstudio-page .button.primary {
  background: linear-gradient(135deg, var(--blue2), var(--blue-deep));
  box-shadow: 0 16px 32px rgba(20, 115, 230, 0.28);
}
.discstudio-page h1 span { color: inherit; }
.discstudio-page h1 span { color: inherit; }
.discstudio-page h1 .accent,
.discstudio-page .eyebrow,
.discstudio-page .site-header nav a:hover { color: var(--blue); }
.discstudio-page .feature-icon { background: #e8f2ff; color: var(--blue); }
.discstudio-page .final-cta { background: linear-gradient(135deg, #1d8cff, #0b4ea8); }
.discstudio-page .final-cta .eyebrow { color: #eaf4ff; }
.discstudio-page .final-cta h2 { color: #fff; }
.discstudio-page .final-cta p { color: #e7f2ff; }

.ds-guide { background: #fff; }
.ds-guide .site-header { position: relative; }
.guide-wrap { width: min(820px, calc(100% - 40px)); margin: 0 auto; padding: 48px 0 80px; }
.guide-wrap nav { font-size: 14px; color: #667085; margin-bottom: 28px; }
.guide-wrap nav a { color: var(--blue); font-weight: 700; }
.guide-wrap h1 { font-size: clamp(34px, 5vw, 48px); line-height: 1.12; letter-spacing: -0.04em; margin: 0 0 18px; }
.guide-intro { font-size: 20px; color: var(--muted); line-height: 1.7; margin: 0 0 22px; }
.guide-meta { font-size: 14px; color: #667085; padding: 14px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-bottom: 32px; }
.guide-answer { padding: 28px; border: 1px solid #cfe2f8; border-radius: 18px; background: #f4f8fd; margin: 0 0 36px; }
.guide-answer .eyebrow { margin-bottom: 8px; }
.guide-answer h2 { font-size: 26px; margin: 0 0 10px; text-align: left; }
.guide-answer p { color: #465468; margin: 0 0 16px; }
.guide-shot { margin: 0 0 40px; }
.guide-shot img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  border: 1px solid #d7deea;
  border-radius: 16px;
  box-shadow: 0 16px 40px rgba(16,24,40,.08);
}
.guide-wrap h2 { font-size: 28px; line-height: 1.25; margin: 42px 0 14px; }
.guide-wrap h3 { font-size: 20px; margin: 28px 0 10px; }
.guide-wrap p, .guide-wrap li { color: #465468; }
.guide-wrap ol, .guide-wrap ul { padding-left: 22px; }
.guide-wrap li { margin: 10px 0; }
.guide-wrap a { color: var(--blue); font-weight: 750; }
.guide-related { display: grid; gap: 12px; margin: 28px 0 0; }
.guide-related a { display: block; padding: 16px 18px; border: 1px solid var(--line); border-radius: 14px; color: var(--ink); background: #fff; }
.guide-related a:hover { border-color: #c5daf7; }
.guide-related strong, .guide-related span { display: block; }
.guide-related span { margin-top: 4px; color: var(--muted); font-weight: 500; font-size: 14px; }
.guide-faq details { padding: 16px 0; border-bottom: 1px solid var(--line); }
.guide-faq summary { cursor: pointer; font-weight: 750; }
.guide-cta, .guide-midcta { margin: 36px 0; padding: 24px 28px; border-radius: 18px; }
.guide-midcta { border: 1px solid #cfe2f8; background: #f4f8fd; }
.guide-cta { background: #0b4ea8; color: #fff; }
.guide-cta p, .guide-midcta p { margin: 0 0 14px; }
.guide-wrap .guide-cta p,
.guide-wrap .guide-cta li { color: #fff; }
.guide-wrap .guide-cta a.button.primary {
  background: #fff;
  color: #0b4ea8;
}
.guide-wrap .guide-cta a.button.ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.75);
  color: #fff;
}
.guide-wrap .guide-cta a.button.ghost:hover { background: rgba(255, 255, 255, 0.12); }
.guide-index { width: min(1100px, calc(100% - 40px)); margin: 0 auto; padding: 56px 0 90px; }
.guide-index h1 { font-size: clamp(36px, 5vw, 50px); margin: 0 0 14px; }
.guide-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 36px; }
.guide-cards a { padding: 26px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.guide-cards a:hover { border-color: #c5daf7; transform: translateY(-2px); box-shadow: 0 16px 36px rgba(16,24,40,.06); }
.guide-cards small { color: var(--blue); font-weight: 800; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.guide-cards h2 { font-size: 22px; margin: 14px 0 8px; text-align: left; }
.guide-cards p { color: var(--muted); margin: 0; }
@media (max-width: 700px) { .guide-cards { grid-template-columns: 1fr; } }