/* =========================================
IROTO Design 総合サイト スタイルシート
-----------------------------------------
Base color: #fff
Accent color: #20AEE5
Section spacing: 80px
Inner spacing: 30px
Side padding ratio: 180 / 1920 = 9.375vw
Breakpoints:
  SP: 0–767px / TB: 768–1023px / PC: 1024px–
========================================= */

/*
Theme Name: IROTO Design
Theme URI: https://irotodesign.jp
Author: Matsumoto Yuko
Description: Custom theme for IROTO Design portfolio site.
Version: 1.0
*/

/* Root Variables */
:root {
  --bg: #ffffff;
  --fg: #292929;
  --muted: #69707a;
  --accent: #20AEE5;
  --accent-ink: #133364;
  --section-space: 80px;
  --stack-30: 30px;
  --radius: 16px;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  --header-h: 80px;
}

/* Base Reset */
* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--fg);
  background: var(--bg);
  font-family: "Zen Maru Gothic", system-ui, -apple-system, "Segoe UI",
    Roboto, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP",
    "Yu Gothic UI", "Yu Gothic", "Meiryo", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* h1を非表示 */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

h2,
h3,
h4 {
  font-family: "Zen Kaku Gothic New", sans-serif;
  color: var(--fg);
}

h2 {
  font-size: clamp(26px, 3.5vw, 48px);
}

h3 {
  font-size: clamp(22px, 2.5vw, 32px);
}

h4 {
  font-size: clamp(18px, 2vw, 24px);
}

/* === Section Inner / Container Base === */
.container,
.section__inner,
.concept-inner,
.hero__inner,
.site-footer__inner {
  width: 100%;
  margin-inline: auto;
  padding-inline: clamp(20px, 9.375vw, 180px);
}

/* Links & Images */
a {
  color: inherit;
  text-decoration: none;
}

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

/* Section Base */
.section {
  margin-bottom: var(--section-space);
}

.section__head {
  margin-bottom: var(--stack-30);
}

.section__title {
  font-size: clamp(22px, 2.1vw, 36px);
  line-height: 1.2;
  margin: 0 0 10px;
}

.section__lead {
  color: var(--muted);
  margin: 0;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg);
  color: var(--fg);
}

.site-header .header-inner {
  width: 100%;
  padding-inline: clamp(16px, 8.33vw, 120px);
  padding-block: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-nav ul {
  display: flex;
  gap: 20px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--fg);
  font-weight: 600;
  text-decoration: none;
  padding: .25rem .4rem;
  transition: transform 0.3s ease, background-color 0.3s ease;
  display: inline-block;
}

.site-nav a:hover {
  transform: translateY(-1px);
}

.site-nav .nav-cta .btn {
  color: var(--bg);
  padding: .55rem 1rem;
}

/* ========== Hero Section ========== */
.hero {
  position: relative;
  height: calc(var(--vh, 1vh) * 100);
  display: flex;
  align-items: center;
  background: #fff;
  overflow: hidden;
  padding-top: 0;
}

.hero__inner {
  display: grid;
  grid-template-columns: 0.45fr 0.55fr;
  align-items: center;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  padding-inline: 9.375vw;
}

/* Copy block */
.hero__copy {
  z-index: 2;
}

.hero__title,
.hero__lead {
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1.6;
  white-space: wrap;
}

.hero__title {
  font-size: clamp(20px, 2.0vw, 32px);
}

.hero__lead {
  font-size: clamp(20px, 2.0vw, 32px);
  margin-bottom: 80px;
}

.accent {
  color: var(--accent);
}

.hero__cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Visual block */
.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
}

.hero__visual img {
  width: 100%;
  max-width: 50vw;
  height: auto;
  aspect-ratio: 984 / 828;
  object-fit: contain;
  max-height: 82vh;
}

.hero {
  position: relative;
  overflow: hidden;
}

.hero__inner {
  position: relative;
}

/* ------------------------------------------
Blog Archive (ブログ一覧)
------------------------------------------- */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.post-item a {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.thumb img {
  width: 180px;
  height: 120px;
  object-fit: cover;
  border-radius: 8px;
}

.meta {
  flex: 1;
}

.news-box {
  position: absolute;
  bottom: 40px;
  right: 40px;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  background: #F8FCFF;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  font-size: 14px;
  width: 28vw;
  max-width: 420px;
  min-width: 280px;
  z-index: 50;
  text-decoration: none;
  color: inherit;
}

.news-content {
  display: flex;
  align-items: center;
  padding: 10px 20px;
  gap: 8px;
  flex: 1;
  box-sizing: border-box;
}

.news-title {
  font-weight: 700;
  color: var(--accent-ink);
  letter-spacing: .2rem;
  white-space: nowrap;
}

.news-separator {
  margin-left: 4px;
  color: #ccc;
  font-weight: normal;
}

.news-text {
  color: #333;
  line-height: 1.4;
}

.news-link {
  flex-shrink: 0;
  width: 50px;
  background: #20AEE5;
  color: #fff;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ====== Floating Color Dots ====== */
.float-dot {
  position: absolute;
  border-radius: 50%;
  opacity: 0.8;
  animation: floatUpDown 8s ease-in-out infinite;
  z-index: 1;
}

.pink {
  background: #f6c8d8;
  width: 120px;
  height: 120px;
  top: 60%;
  left: 12%;
  animation-delay: 0s;
}

.yellow {
  background: #fff4a8;
  width: 80px;
  height: 80px;
  top: 30%;
  right: 10%;
  animation-delay: 1s;
}

.blue {
  background: #BEE3F8;
  width: 100px;
  height: 100px;
  top: 10%;
  left: 55%;
  animation-delay: 2s;
}

.green {
  background: #c9f7d3;
  width: 90px;
  height: 90px;
  bottom: 8%;
  left: 25%;
  animation-delay: 3s;
}

.purple {
  background: #d8d0ff;
  width: 110px;
  height: 110px;
  bottom: 5%;
  right: 18%;
  animation-delay: 4s;
}

.orange {
  background: #ffd7a6;
  width: 70px;
  height: 70px;
  top: 15%;
  left: 25%;
  animation-delay: 5s;
}

/* ふわふわ動作アニメーション */
@keyframes floatUpDown {
  0% {
    transform: translate(0, 0);
  }

  25% {
    transform: translate(10px, -20px);
  }

  50% {
    transform: translate(0, -40px);
  }

  75% {
    transform: translate(-10px, -20px);
  }

  100% {
    transform: translate(0, 0);
  }
}

/* --- concept セクション --- */
.concept {
  position: relative;
  overflow: hidden;
  background: #fff;
  margin-top: -80px;
}

.concept-bg {
  position: absolute;
  top: 180px;
  left: 0;
  width: 100%;
  height: calc(100% - 300px);
  background: linear-gradient(to bottom, #F1FAFF 0px, #FFFFFF 100%);
  clip-path: polygon(0 8%, 100% 0, 100% 100%, 0 100%);
  z-index: 0;
}

.concept-inner {
  position: relative;
  z-index: 2;
  margin: 0 auto;
}

.section-en {
  position: relative;
  font-family: "Montserrat", sans-serif;
  font-size: 128px;
  font-weight: 700;
  font-style: italic;
  text-transform: lowercase;
  line-height: 1;
  letter-spacing: 0.05em;
}

.section-en .outline {
  position: relative;
  color: transparent;
  -webkit-text-stroke: 1px rgba(32, 174, 229, 0.25);
  z-index: 1;
}

.section-en .fill {
  position: absolute;
  top: 3px;
  left: 4px;
  color: rgba(32, 174, 229, 0.25);
  -webkit-text-stroke: 0;
  z-index: 0;
}

.concept-title {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 1px #20AEE5;
  text-align: center;
  font-size: 74px;
  position: relative;
  z-index: 3;
}

.concept-title .symbol {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 64px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  margin: 0 0.15em;
  position: relative;
  top: -10px;
}

.concept-sub {
  position: relative;
  display: flex;
  justify-content: center;
  gap: 5em;
  font-size: 24px;
  letter-spacing: .2rem;
  color: #777;
  top: -30px;
  margin-bottom: 60px;
  text-align: center;
}

.concept-sub .left,
.concept-sub .right {
  display: inline-block;
  font-family: "Zen Maru Gothic", sans-serif;
  line-height: 1.6;
}

.concept-sub .left {
  position: relative;
  left: -1em;
}

.concept-sub .right {
  position: relative;
  right: -2.2em;
}

.concept-text {
  font-size: clamp(20px, 2.0vw, 28px);
  font-weight: 600;
  color: var(--fg);
  text-align: center;
  line-height: 2;
  letter-spacing: 0.1rem;
  margin-top: -50px;
  margin-bottom: 30px;
}

.concept__wrapper {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-bottom: 40px;
}

.concept-img {
  width: calc(50vw - 180px);
  flex-shrink: 0;
}

.concept-img img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.concept__about {
  flex: 1;
  text-align: left;
  max-width: 600px;
}

.concept__about h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 0.1rem;
  color: var(--muted);
  margin-bottom: 20px;
}

.concept__about p {
  font-size: 16px;
  letter-spacing: 0.1rem;
  line-height: 2;
  color: var(--fg);
}

.concept__about p span.en {
  font-family: 'Montserrat', sans-serif;
}

/* =========================================
  SERVICE SECTION
  ----------------------------------------
  見出し・サービス内容・お悩み解決カード
========================================= */

/* --- 見出しタイトル --- */
.title {
  font-size: 28px;
  font-weight: 700;
  text-align: center;
  color: var(--fg);
  margin-bottom: 30px;
  position: relative;
}

.title::after {
  content: "";
  display: block;
  width: 45px;
  height: 2px;
  background: var(--accent);
  margin: 12px auto 0;
}

.service-list {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
  text-align: left;
  margin-bottom: 40px;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: inline-block;
  text-align: left;
}

.check-list li {
  position: relative;
  padding-left: 36px;
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.8;
  color: var(--fg);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 24px;
  height: 24px;
  background: url("../images/check.png") no-repeat center center / contain;
}

.service-item {
  flex: 1 1 380px;
  max-width: 380px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.service-item img {
  width: 120px;
  height: auto;
  margin: 24px auto;
  display: block;
}

.service-item h4 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--fg);
}

.service-item ul {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 16px;
  line-height: 2;
  color: var(--muted);
}

.service-solve {
  text-align: center;
}

.service-solve h4 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 60px;
  color: var(--fg);
}

.service-solve h4::after {
  content: "";
  display: block;
  width: 45px;
  height: 2px;
  background: var(--accent);
  margin: 12px auto 0;
}

.solve-list {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 36px;
}

.solve-card {
  position: relative;
  background: #F1FAFF;
  border-radius: 40px;
  width: calc((100% - (24px * 2)) / 3);
  padding: 40px 30px 120px;
  text-align: center;
  z-index: 0;
}

.solve-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--accent);
  border-radius: 40px;
  transform: translate(-6px, -6px);
  z-index: -1;
}

.solve-title {
  position: relative;
  font-weight: 700;
  font-size: 20px;
  text-align: center;
  color: var(--fg);
  line-height: 1.6;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.solve-title::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -30px;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: 18px solid var(--accent);
}

.solve-text {
  line-height: 1.8;
  color: var(--fg);
  text-align: left;
  margin: 60px 0 30px;
}

.solve-illust {
  position: absolute;
  bottom: 0;
  right: 20px;
  height: 140px;
  object-fit: contain;
  pointer-events: none;
}

.service-btn {
  text-align: center;
  margin-top: 60px;
}

/* --- works  --- */
.works-list {
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
  z-index: 2;
  justify-content: center;
}

.work-card {
  flex: 1 1 calc((100% - 120px) / 3);
  text-align: center;
  max-width: 380px;
}

.work-card img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.work-card:hover img {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.work-title {
  font-size: 18px;
  font-weight: 700;
  margin: 24px 0 8px;
  text-align: left;
}

.work-desc {
  font-size: 14px;
  color: #666;
  text-align: left;
}

.works-btn {
  text-align: center;
  margin-top: 60px;
}

/* FAQ */
.faq-top .section-en .fill,
.faq-top .section-en .outline {
  text-transform: uppercase;
}

.faq-top .title {
  margin-top: 12px;
}

.faq-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  max-width: 900px;
  margin: 0 auto;
}

.faq-q {
  font-weight: 700;
  font-size: 24px;
  color: var(--accent-ink);
  margin-bottom: 12px;
}

.faq-a {
  font-weight: 500;
  font-size: 16px;
  line-height: 1.8;
  color: #444;
}

.faq-btn {
  text-align: center;
  margin-top: 50px;
}

.faq-more {
  padding: 16px 40px;
  font-size: 18px;
  border-radius: 6px;
}

/* --- contact --- */
.contact-inner {
  background: #F1FAFF;
  text-align: center;
  padding: 50px 0;
}

.contact-text {
  font-family: "Zen Maru Gothic", sans-serif;
  font-size: 18px;
  color: #333;
  margin-bottom: 60px;
  line-height: 1.8;
}

.contact-btns {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 18px 40px;
  font-size: 18px;
  font-weight: 700;
  border-radius: 8px;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: 0.3s;
}

.btn-blue {
  background: #20AEE5;
  width: 360px;
  height: 80px;
  font-size: 24px;
}

.btn-green {
  background: #25D366;
  width: 360px;
  height: 80px;
  font-size: 24px;
}

.btn:hover {
  opacity: 0.85;
  transform: translateY(-2px);
}

/* --- footer --- */
.footer {
  padding: 80px 0 40px;
  text-align: center;
}

.footer-inner {
  max-width: 1560px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 40px;
  padding: 0 40px;
}

.footer-left {
  text-align: center;
  flex: 1;
  width: 500px;
}

.footer-logo {
  width: 120px;
  margin-bottom: 20px;
  margin: 0 auto;
}

.footer-left p {
  font-family: "Zen Maru Gothic", sans-serif;
  color: var(--accent-ink);
  line-height: 1.8;
  font-size: 15px;
}

.footer-right {
  flex: 1;
  width: 200px;
}

.footer-right ul {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
}

.footer-right li {
  margin-bottom: 8px;
}

.footer-right a {
  color: var(--accent-ink);
  text-decoration: none;
  font-size: 15px;
  transition: 0.3s;
}

.footer-right a:hover {
  color: var(--accent);
}

.footer-copy {
  margin-top: 60px;
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.05em;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 40px;
  border-radius: 5px;
  font-weight: 600;
  letter-spacing: 0.15em;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn--accent {
  background: var(--accent);
  color: #fff;
}

.btn--accent:hover {
  filter: brightness(1.05);
}

.btn--ghost {
  border-color: var(--accent);
  color: var(--accent-ink);
  background: transparent;
}

.btn--ghost:hover {
  background: color-mix(in oklab, var(--accent) 10%, white);
}

/* ========== Utility ========== */
.stack-30>*+* {
  margin-top: var(--stack-30);
}

.ph {
  user-select: none;
}

/* ========== レスポンシブ ========== */

/* --- Tablet (768–1023px) --- */
@media (max-width: 1023px) {

  .container,
  .section__inner,
  .concept-inner,
  .hero__inner,
  .site-footer__inner {
    padding-inline: 6vw;
  }

  .section-en {
    font-size: clamp(56px, 10vw, 96px);
  }

  body {
    font-size: 15px;
    line-height: 1.6;
  }

  h2 {
    font-size: 28px;
    line-height: 1.3;
  }

  h3 {
    font-size: 22px;
    line-height: 1.4;
  }

  h4 {
    font-size: 18px;
    line-height: 1.5;
  }

  .hero {
    height: auto;
    padding-block: 140px 60px;
  }

  .news-box {
    bottom: 30px;
    right: 20px;
    width: 35vw;
    max-width: 360px;
  }

  .news-content {
    padding: 8px 16px;
  }

  .news-text {
    font-size: 13px;
    line-height: 1.4;
  }

  .news-link {
    width: 36px;
    font-size: 16px;
  }

  .float-dot {
    opacity: 0.75;
  }

  .pink {
    width: 90px;
    height: 90px;
    top: 35%;
    left: 8%;
  }

  .yellow {
    width: 60px;
    height: 60px;
    top: 30%;
    right: 8%;
  }

  .blue {
    width: 80px;
    height: 80px;
    top: 12%;
    left: 52%;
  }

  .green {
    width: 70px;
    height: 70px;
    top: 60%;
    left: 20%;
  }

  .purple {
    width: 85px;
    height: 85px;
    top: 55%;
    right: 15%;
  }

  .orange {
    width: 55px;
    height: 55px;
    top: 18%;
    left: 28%;
  }

  @keyframes floatUpDown {
    0% {
      transform: translate(0, 0);
    }

    25% {
      transform: translate(5px, -10px);
    }

    50% {
      transform: translate(0, -20px);
    }

    75% {
      transform: translate(-5px, -10px);
    }

    100% {
      transform: translate(0, 0);
    }
  }

  .section__title {
    font-size: 24px;
    margin-bottom: 16px;
  }

  .concept-bg {
    top: 130px;
    clip-path: polygon(0 10%, 100% 0, 100% 100%, 0 100%);
    height: calc(100% - 200px);
  }

  .concept-title {
    font-size: 52px;
    margin-top: 20px;
  }

  .concept-sub {
    font-size: 18px;
    gap: 3em;
    margin-bottom: 40px;
  }

  .concept__wrapper {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 40px;
    margin-bottom: 40px;
  }

  .concept-img {
    width: 70%;
    max-width: 500px;
  }

  .concept__about {
    max-width: 600px;
    text-align: left;
  }

  .service-solve h4 {
    font-size: 24px;
    margin-bottom: 40px;
  }

  .solve-card {
    padding: 32px 24px 100px;
  }

  .works-list {
    justify-content: space-between;
    gap: 32px;
    padding-inline: 5vw;
  }

  .work-card {
    flex: 1 1 calc((100% - 64px) / 3);
    max-width: 300px;
  }

  .guide-card {
    gap: 24px;
    padding: 20px 40px;
  }

  .contact-text {
    font-size: 16px;
    margin-bottom: 40px;
  }

  .service-btn,
  .works-btn {
    margin-top: 30px;
  }
}

/* --- SP (〜767px) --- */
@media (max-width: 767px) {
  .section {
    margin-bottom: 30px;
  }

  .title {
    font-size: 20px;
    margin-bottom: 16px;
  }

  /* --- Hero --- */
  .hero {
    padding-block: 20px 30px;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    padding-top: calc(var(--header-h));
    text-align: center;
    padding-inline: 0;
  }

  .hero__visual {
    order: -1;
    margin-bottom: 30px;
  }

  .hero__visual img {
    width: 80%;
    max-width: 600px;
    max-height: 70vh;
    height: auto;
  }

  .hero__lead {
    margin-bottom: 30px;
  }

  .hero__cta {
    justify-content: center;
  }

  .news-box {
    position: static;
    margin-top: 24px;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    width: 80%;
    max-width: none;
    margin-inline: auto;
    border-radius: 5px;
  }

  .news-content {
    justify-content: center;
    text-align: center;
    padding: 8px;
  }

  .news-title {
    font-size: 15px;
  }

  .news-text {
    display: block;
    text-align: left;
    font-size: 13px;
    line-height: 1.5;
  }

  .news-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 24px;
    background: #20AEE5;
    color: #fff;
    font-size: 16px;
    border-radius: 0 0 5px 5px;
    flex-shrink: 0;
  }

  .news-text a {
    display: none;
  }

  .pink {
    width: 45px;
    height: 45px;
    top: 35%;
    left: 8%;
  }

  .yellow {
    width: 30px;
    height: 30px;
    top: 30%;
    right: 8%;
  }

  .blue {
    width: 40px;
    height: 40px;
    top: 12%;
    left: 52%;
  }

  .green {
    width: 35px;
    height: 35px;
    top: 60%;
    left: 20%;
  }

  .purple {
    width: 40px;
    height: 40px;
    top: 55%;
    right: 15%;
  }

  .orange {
    width: 25px;
    height: 25px;
    top: 18%;
    left: 28%;
  }

  .concept {
    margin-top: -40px;
  }

  .concept-bg {
    top: 80px;
    height: min(40vh, 280px);
    clip-path: polygon(0 14%, 100% 0, 100% 100%, 0 100%);
  }

  .concept-inner {
    padding-inline: 6vw;
  }

  .section-en {
    font-size: 64px;
  }

  .concept-title {
    font-size: 28px;
    margin-top: 8px;
    -webkit-text-stroke: 0.8px #20AEE5;
  }

  .concept-title .symbol {
    font-size: 22px;
    top: -4px;
  }

  .concept-sub {
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 1.2em;
    font-size: 14px;
    letter-spacing: 0.1rem;
    color: #777;
    margin-bottom: 16px;
    top: 0;
  }

  .concept-sub .left,
  .concept-sub .right {
    position: static;
    display: inline-block;
    line-height: 1.6;
  }

  .concept-text {
    font-size: 15px;
    line-height: 1.8;
    margin: 10px 0 30px;
  }

  .concept__wrapper {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 24px;
    margin-bottom: 30px;
  }

  .concept-img {
    width: 100%;
    max-width: 360px;
  }

  .concept-img img {
    width: 100%;
    height: auto;
    object-fit: cover;
  }

  .concept__about {
    padding: 0 4vw;
  }

  .concept__about h4 {
    font-size: 20px;
    margin-bottom: 10px;
  }

  .concept__about p {
    font-size: 14px;
    line-height: 1.8;
  }

  /* --- Solve --- */
  .solve-list {
    flex-direction: column;
    align-items: center;
  }

  .solve-card {
    width: 100%;
    max-width: 300px;
    min-height: 300px;
  }

  .solve-title {
    font-size: 16px;
    line-height: 1.5;
  }

  .solve-text {
    margin: 40px 0 20px;
    font-size: 15px;
    line-height: 1.7;
  }

  .service-solve h4 {
    font-size: 20px;
    margin-bottom: 32px;
  }

  /* --- Service (サービス一覧) --- */
  .service-list {
    flex-direction: column;
    align-items: center;
    gap: 0;
    margin-bottom: 20px;
  }

  .service-item h4 {
    font-size: 18px;
  }

  .check-list li {
    font-size: 16px;
  }

  /* --- Works (制作事例) --- */
  .works-list {
    flex-direction: column;
    align-items: center;
  }

  .work-card {
    width: 260px;
    text-align: center;
    margin-bottom: 40px;
  }

  .works-btn {
    margin-top: 0;
  }

  /* 2カラム → 1カラム */
  .faq-columns {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-inline: 20px;
  }

  /* 質問 */
  .faq-q {
    font-size: 16px;
    line-height: 1.5;
  }

  /* 回答 */
  .faq-a {
    font-size: 15px;
    line-height: 1.7;
  }

  /* ボタン */
  .faq-btn {
    margin-top: 20px;
  }

  .faq-more {
    display: block;
    width: 100%;
    height: 56px;
    font-size: 17px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* --- Contact --- */
  .contact-inner {
    padding: 40px 0;
  }

  .contact-text {
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 40px;
  }

  .btn {
    font-size: 15px;
    padding: 12px 28px;
    border-radius: 6px;
  }

  .contact-btns {
    gap: 20px;
  }

  .btn-blue,
  .btn-green {
    width: 260px;
    height: 60px;
    font-size: 17px;
  }

  /* --- Footer --- */
  .footer {
    padding: 60px 0 30px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 30px;
    padding: 0 20px;
  }

  .footer-left,
  .footer-right {
    width: 100%;
    flex: none;
  }

  .footer-logo {
    width: 100px;
    margin: 0 auto 16px;
  }

  .footer-left p {
    font-size: 12px;
    line-height: 1.8;
  }

  .footer-right ul {
    text-align: left;
    padding: .375em;
  }

  .footer-right li {
    margin-bottom: 6px;
  }

  .footer-right a {
    font-size: 12px;
  }

  .footer-copy {
    margin-top: 40px;
    font-size: 13px;
  }

  /* --- Typography --- */
  body {
    font-size: 14px;
    line-height: 1.6;
  }

  h2 {
    font-size: 22px;
    line-height: 1.3;
  }

  h3 {
    font-size: 18px;
    line-height: 1.4;
  }

  h4 {
    font-size: 16px;
    line-height: 1.5;
  }

  .section__title {
    font-size: 20px;
    margin-bottom: 12px;
  }
}

/* ハンバーガーメニュー */
@media (max-width:1023px) {
  .nav-toggle {
    display: inline-block;
    width: 44px;
    height: 44px;
    border: 0;
    background: transparent;
    color: var(--accent);
    position: relative;
    border-radius: 8px;
  }

  .nav-toggle:focus-visible {
    outline: 2px solid var(--turquoise);
    outline-offset: 2px;
  }

  /* 三本線 */
  .nav-toggle span,
  .nav-toggle span::before,
  .nav-toggle span::after {
    position: absolute;
    left: 50%;
    width: 24px;
    height: 2px;
    background: var(--accent);
    content: "";
    transform: translateX(-50%);
    transition: transform .2s ease, opacity .2s ease, top .2s ease, bottom .2s ease;
  }

  .nav-toggle span {
    top: 50%;
  }

  .nav-toggle span::before {
    top: -8px;
  }

  .nav-toggle span::after {
    bottom: -8px;
  }

  /* 開いた時（×に変形） */
  .site-header.is-open .nav-toggle span {
    background: transparent;
  }

  .site-header.is-open .nav-toggle span::before {
    top: 0;
    transform: translateX(-50%) rotate(45deg);
  }

  .site-header.is-open .nav-toggle span::after {
    bottom: 0;
    transform: translateX(-50%) rotate(-45deg);
  }

  /* ===== メニュー全体 ===== */
  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
    pointer-events: none;
  }

  .site-header.is-open .site-nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .site-nav ul {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 20px clamp(16px, 6vw, 24px);
  }

  .site-nav a {
    display: block;
    color: var(--fg);
    padding: 12px 8px;
    border-radius: 8px;
  }

  .site-nav a:hover {
    background: rgba(255, 255, 255, .08);
  }

  .site-nav .nav-cta .btn {
    width: 100%;
    text-align: center;
    padding: .8rem 1.5rem;
  }

  .nav-locked {
    overflow: hidden;
    overscroll-behavior: contain;
  }
}

@media (max-width: 1280px) and (min-width: 1025px) {
  .news-box {
    width: 32vw;
    max-width: 380px;
    bottom: 32px;
    right: 28px;
  }

  .news-content {
    padding: 8px 16px;
  }

  .news-text {
    font-size: 13px;
  }

  .news-link {
    width: 38px;
  }
}