:root {
  --ink: #10141b;
  --muted: #566274;
  --subtle: #eef3f6;
  --paper: #ffffff;
  --soft: #f7faf9;
  --green: #059447;
  --green-dark: #056535;
  --blue: #2368d7;
  --amber: #b16a00;
  --amber-soft: #fff6df;
  --line: #dbe5ea;
  --shadow: 0 18px 48px rgba(16, 20, 27, .08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.voice-article {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(255,255,255,.96), rgba(248,252,250,.98) 420px, #fff 100%),
    radial-gradient(circle at 26% 0%, rgba(5,148,71,.08), transparent 36%);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  letter-spacing: 0;
  line-height: 1.7;
}

a {
  color: inherit;
}

.va-header {
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 clamp(16px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
}

.va-brand {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.va-brand b {
  display: block;
  font-size: 22px;
  line-height: 1.1;
  font-weight: 950;
}

.va-brand small {
  display: block;
  color: #5e6b7a;
  font-size: 12px;
  font-weight: 850;
}

.va-mark {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.va-mark i {
  display: block;
  width: 5px;
  border-radius: 999px;
  background: var(--green);
}

.va-mark i:nth-child(1) { height: 16px; }
.va-mark i:nth-child(2) { height: 30px; }
.va-mark i:nth-child(3) { height: 22px; }
.va-mark i:nth-child(4) { height: 34px; }

.va-header nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.va-header nav a {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  color: #223047;
  text-decoration: none;
  font-size: 15px;
  font-weight: 900;
  white-space: nowrap;
}

.va-header nav .va-nav-cta {
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid rgba(5,148,71,.35);
  border-radius: 999px;
  background: #f1fff6;
  color: var(--green-dark);
}

.va-shell {
  width: min(1500px, calc(100% - 44px));
  margin: 0 auto;
  padding: 28px 0 0;
}

.va-breadcrumb {
  margin: 0 0 20px;
  color: #667386;
  font-size: 14px;
  font-weight: 850;
}

.va-breadcrumb a {
  text-decoration: none;
}

.va-breadcrumb span {
  padding: 0 8px;
  color: #9faab8;
}

.va-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 560px);
  gap: clamp(22px, 4vw, 56px);
  align-items: start;
}

.va-kicker {
  width: fit-content;
  margin: 0 0 14px;
  padding: 6px 14px;
  border: 1px solid rgba(5,148,71,.18);
  border-radius: 999px;
  background: #effff5;
  color: var(--green-dark);
  font-size: 16px;
  font-weight: 950;
}

.va-hero h1 {
  margin: 0;
  font-size: clamp(44px, 5.4vw, 78px);
  line-height: 1.06;
  font-weight: 950;
  letter-spacing: 0;
}

.va-lead {
  max-width: 820px;
  margin: 18px 0 0;
  color: #273243;
  font-size: clamp(21px, 2.2vw, 30px);
  line-height: 1.48;
  font-weight: 850;
}

.va-hero-actions {
  display: grid;
  grid-template-columns: minmax(250px, 420px) minmax(240px, 360px);
  gap: 14px;
  margin-top: 24px;
}

.va-mini-answer {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid rgba(5,148,71,.32);
  border-radius: 8px;
  background: #f7fff9;
}

.va-mini-answer b {
  display: grid;
  place-items: center;
  min-height: 46px;
  border-right: 1px solid rgba(5,148,71,.25);
  color: var(--green-dark);
  font-size: 18px;
  font-weight: 950;
}

.va-mini-answer p {
  margin: 0;
  color: #334253;
  font-size: 16px;
  font-weight: 830;
}

.va-button {
  min-height: 78px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 24px;
  border-radius: 8px;
  text-decoration: none;
  font-size: clamp(22px, 2vw, 30px);
  font-weight: 950;
}

.va-button::after,
.va-tool-cta a::after,
.va-script-grid a::after {
  content: ">";
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-weight: 950;
}

.va-button-primary {
  background: linear-gradient(135deg, #05a851, var(--green-dark));
  color: #fff;
  box-shadow: 0 18px 32px rgba(5,148,71,.24);
}

.va-button-primary::after {
  background: rgba(255,255,255,.22);
}

.va-button-secondary {
  border: 3px solid var(--green);
  background: #fff;
  color: var(--green-dark);
}

.va-button-secondary::after {
  background: var(--green);
  color: #fff;
}

.va-scene-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.va-scene-strip a {
  min-height: 170px;
  display: grid;
  align-content: end;
  gap: 5px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(10,14,20,.03), rgba(10,14,20,.12)),
    #fff;
  text-decoration: none;
  box-shadow: 0 10px 26px rgba(16,20,27,.06);
}

.va-scene-strip span {
  width: fit-content;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--green);
  color: #fff;
  font-size: 13px;
  font-weight: 950;
}

.va-scene-strip b {
  font-size: 23px;
  line-height: 1.2;
}

.va-scene-strip small {
  color: #4d5a6d;
  font-size: 14px;
  font-weight: 850;
}

.va-voice-panel {
  padding: 22px;
  border: 1px solid #cfdce5;
  border-radius: 8px;
  background: rgba(255,255,255,.92);
  box-shadow: var(--shadow);
}

.va-panel-head h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.25;
  font-weight: 950;
}

.va-panel-head p {
  margin: 6px 0 18px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 850;
}

.va-voice-row {
  min-height: 66px;
  display: grid;
  grid-template-columns: 46px 84px minmax(110px, 1fr) 150px;
  gap: 12px;
  align-items: center;
  margin-top: 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.va-avatar {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  font-size: 15px;
  font-weight: 950;
}

.va-avatar-female { background: #d26b83; }
.va-avatar-male { background: #355f97; }
.va-avatar-cute { background: #e18aa5; }
.va-avatar-pro { background: #1f7550; }

.va-voice-row b {
  font-size: 20px;
  font-weight: 950;
}

.va-voice-row i {
  height: 30px;
  border-radius: 999px;
  background:
    repeating-linear-gradient(90deg, transparent 0 8px, rgba(35,104,215,.82) 8px 11px, transparent 11px 15px),
    linear-gradient(180deg, transparent 0 45%, rgba(35,104,215,.18) 45% 55%, transparent 55% 100%);
}

.va-voice-row small {
  display: inline-flex;
  justify-content: center;
  padding: 6px 9px;
  border-radius: 6px;
  background: #f5f8fb;
  color: #526071;
  font-size: 12px;
  font-weight: 850;
  text-align: center;
}

.va-panel-note {
  margin: 14px 0 0;
  padding: 13px 14px;
  border: 1px solid #dce8de;
  border-radius: 8px;
  background: #f8fff9;
  color: #335143;
  font-size: 15px;
  font-weight: 850;
}

.va-answer-card {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 20px;
  margin-top: 28px;
  padding: 24px;
  border: 1px solid rgba(5,148,71,.38);
  border-radius: 8px;
  background: #f7fff9;
}

.va-answer-card > span {
  display: grid;
  place-items: center;
  border-right: 1px solid rgba(5,148,71,.25);
  color: var(--green-dark);
  font-size: 25px;
  font-weight: 950;
}

.va-answer-card h2 {
  margin: 0;
  font-size: clamp(26px, 2.6vw, 38px);
  line-height: 1.28;
  font-weight: 950;
}

.va-answer-card p {
  margin: 10px 0 0;
  color: #354356;
  font-size: 18px;
  font-weight: 780;
}

.va-feature-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  overflow: hidden;
  margin-top: 20px;
  border: 1px solid #b9d8c8;
  border-radius: 8px;
  background: #fff;
}

.va-feature-bar div {
  min-height: 94px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 4px;
  padding: 16px;
  text-align: center;
  border-right: 1px solid #d7e7dc;
}

.va-feature-bar div:last-child {
  border-right: 0;
}

.va-feature-bar b {
  color: var(--green-dark);
  font-size: 22px;
  font-weight: 950;
}

.va-feature-bar span {
  color: #5b6878;
  font-size: 14px;
  font-weight: 850;
}

.va-section {
  margin-top: 34px;
}

.va-section-head {
  margin-bottom: 16px;
}

.va-section-head p {
  margin: 0 0 5px;
  color: var(--green-dark);
  font-size: 16px;
  font-weight: 950;
}

.va-section-head h2 {
  margin: 0;
  max-width: 920px;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.25;
  font-weight: 950;
}

.va-use-grid,
.va-step-grid,
.va-script-grid,
.va-ref-grid {
  display: grid;
  gap: 16px;
}

.va-use-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.va-step-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.va-use-grid article,
.va-step-grid article,
.va-script-grid article,
.va-ref-grid a,
.va-faq details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 10px 26px rgba(16,20,27,.04);
}

.va-use-grid article {
  min-height: 260px;
  padding: 20px;
}

.va-step-grid article {
  min-height: 210px;
  padding: 20px;
}

.va-step-grid span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 21px;
  font-weight: 950;
}

.va-step-grid h3 {
  margin: 0 0 8px;
  font-size: 24px;
  line-height: 1.3;
  font-weight: 950;
}

.va-step-grid p {
  margin: 0;
  color: #4f5c6d;
  font-size: 16px;
  font-weight: 780;
}

.va-use-grid span {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 5px 11px;
  border-radius: 999px;
  background: #eafaf2;
  color: var(--green-dark);
  font-weight: 950;
}

.va-use-grid h3,
.va-script-grid h3 {
  margin: 0 0 9px;
  font-size: 24px;
  line-height: 1.3;
  font-weight: 950;
}

.va-use-grid p,
.va-note,
.va-script-grid pre,
.va-faq p {
  color: #4f5c6d;
  font-size: 16px;
  font-weight: 780;
}

.va-use-grid p {
  margin: 0;
}

.va-use-grid b {
  display: block;
  margin-top: 14px;
  color: var(--green-dark);
  font-size: 15px;
}

.va-compare {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.va-compare > div {
  display: grid;
  grid-template-columns: 190px minmax(0, 1.15fr) minmax(0, 1fr) 230px;
  border-bottom: 1px solid var(--line);
}

.va-compare > div:last-child {
  border-bottom: 0;
}

.va-compare > div:first-child {
  background: #f0fbf5;
}

.va-compare b,
.va-compare span,
.va-compare p {
  margin: 0;
  padding: 16px;
  border-right: 1px solid var(--line);
  font-size: 16px;
}

.va-compare b:last-child,
.va-compare p:last-child {
  border-right: 0;
}

.va-compare span {
  color: var(--green-dark);
  font-weight: 950;
}

.va-compare p {
  color: #4b596b;
  font-weight: 770;
}

.va-compare small {
  display: block;
  margin-top: 8px;
  color: #6f7c8c;
  font-size: 12px;
  line-height: 1.5;
  font-weight: 780;
}

.va-compare a {
  color: #155b9e;
  font-weight: 920;
}

.va-note {
  margin: 12px 0 0;
}

.va-script-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.va-script-grid article {
  padding: 20px;
}

.va-script-grid pre {
  min-height: 154px;
  margin: 0 0 14px;
  padding: 16px;
  border: 1px solid #dce7ee;
  border-radius: 8px;
  background: #f8fbfd;
  white-space: pre-wrap;
  font-family: inherit;
  line-height: 1.75;
}

.va-script-grid a {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  border: 1px solid var(--green);
  border-radius: 8px;
  color: var(--green-dark);
  text-decoration: none;
  font-weight: 950;
}

.va-script-grid a::after {
  width: 24px;
  height: 24px;
  background: #edf9f2;
}

.va-check {
  padding: 24px;
  border: 1px solid #efce8d;
  border-radius: 8px;
  background: var(--amber-soft);
}

.va-check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.va-check-list label {
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1px solid #ebc775;
  border-radius: 8px;
  background: #fff;
  color: #354254;
  font-size: 17px;
  font-weight: 860;
}

.va-check-list input {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  accent-color: var(--green);
}

.va-caution {
  margin: 14px 0 0;
  padding: 13px 14px;
  border: 1px solid #edbd62;
  border-radius: 8px;
  background: #fff;
  color: #654314;
  font-weight: 880;
}

.va-tool-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 22px;
  align-items: center;
  padding: 24px;
  border: 1px solid rgba(5,148,71,.35);
  border-radius: 8px;
  background: #f7fff9;
}

.va-tool-cta > div {
  display: flex;
  align-items: center;
  gap: 18px;
}

.va-tool-cta span {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #e6f8ee;
  color: var(--green-dark);
  font-size: 28px;
  font-weight: 950;
  flex: 0 0 auto;
}

.va-tool-cta h2 {
  margin: 0;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.25;
  font-weight: 950;
}

.va-tool-cta p {
  margin: 8px 0 0;
  color: #536173;
  font-size: 17px;
  font-weight: 780;
}

.va-tool-cta a {
  min-height: 66px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 8px;
  background: linear-gradient(135deg, #05a851, var(--green-dark));
  color: #fff;
  text-decoration: none;
  font-size: 20px;
  font-weight: 950;
  box-shadow: 0 14px 26px rgba(5,148,71,.18);
}

.va-tool-cta a::after {
  background: rgba(255,255,255,.22);
}

.va-ref-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.va-ref-grid a {
  min-height: 146px;
  display: grid;
  align-content: start;
  gap: 8px;
  padding: 18px;
  color: #155b9e;
  text-decoration: none;
}

.va-ref-grid b {
  color: #173552;
  font-size: 18px;
}

.va-ref-grid span {
  color: #58677a;
  font-size: 14px;
  font-weight: 780;
}

.va-faq details + details {
  margin-top: 10px;
}

.va-faq summary {
  padding: 18px;
  font-size: 18px;
  font-weight: 950;
  cursor: pointer;
}

.va-faq p {
  margin: 0;
  padding: 0 18px 18px;
}

.va-footer {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 40px;
  padding: 30px 16px;
  border-top: 1px solid var(--line);
  background: #fbfdfc;
  color: #5d6877;
  font-size: 14px;
  font-weight: 850;
}

@media (max-width: 1180px) {
  .va-hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .va-use-grid,
  .va-ref-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .va-script-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 780px) {
  .va-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 13px 14px;
  }

  .va-brand b {
    font-size: 19px;
  }

  .va-header nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .va-header nav a {
    flex: 0 0 auto;
    min-height: 34px;
    padding: 0 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff;
  }

  .va-shell {
    width: calc(100% - 20px);
    padding-top: 18px;
  }

  .va-breadcrumb {
    font-size: 13px;
  }

  .va-hero h1 {
    font-size: 38px;
    line-height: 1.12;
  }

  .va-lead {
    font-size: 20px;
  }

  .va-hero-actions,
  .va-mini-answer,
  .va-scene-strip,
  .va-answer-card,
  .va-feature-bar,
  .va-use-grid,
  .va-step-grid,
  .va-check-list,
  .va-tool-cta,
  .va-ref-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .va-mini-answer b {
    min-height: 38px;
    border-right: 0;
    border-bottom: 1px solid rgba(5,148,71,.25);
  }

  .va-button {
    min-height: 66px;
    font-size: 22px;
  }

  .va-scene-strip a {
    min-height: 118px;
  }

  .va-voice-panel {
    padding: 16px;
  }

  .va-voice-row {
    grid-template-columns: 42px minmax(70px, 90px) minmax(80px, 1fr);
  }

  .va-voice-row small {
    grid-column: 2 / -1;
    justify-content: flex-start;
    text-align: left;
  }

  .va-answer-card {
    padding: 18px;
  }

  .va-answer-card > span {
    min-height: 46px;
    border-right: 0;
    border-bottom: 1px solid rgba(5,148,71,.25);
  }

  .va-feature-bar div {
    min-height: 78px;
    border-right: 0;
    border-bottom: 1px solid #d7e7dc;
  }

  .va-feature-bar div:last-child {
    border-bottom: 0;
  }

  .va-compare {
    display: grid;
    gap: 10px;
    border: 0;
    background: transparent;
  }

  .va-compare > div {
    grid-template-columns: minmax(0, 1fr);
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
  }

  .va-compare > div:first-child {
    display: none;
  }

  .va-compare span,
  .va-compare p {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .va-compare p::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 5px;
    color: var(--green-dark);
    font-size: 13px;
    font-weight: 950;
  }

  .va-compare p:last-child {
    border-bottom: 0;
  }

  .va-check {
    padding: 16px;
  }

  .va-tool-cta > div {
    align-items: flex-start;
  }
}