/* =====================================================
   案件パートナー募集LP — style.css
   自社サイト（new_company）のカラー・デザイントーンを継承
   ===================================================== */

/* =====================================================
   CSS カスタムプロパティ（自社サイトと統一）
   ===================================================== */
:root {
  --color-primary:      #0d1b6e;
  --color-primary-mid:  #0000cd;
  --color-accent:       #ff7f50;
  --color-accent-dark:  #ff6030;
  --color-accent-alt:   #ff4500;
  --color-bg:           #f5f7fa;
  --color-bg-white:     #ffffff;
  --color-text:         #333333;
  --color-text-light:   #666666;
  --color-text-muted:   #999999;
  --color-border:       #e2e5ef;
  --color-border-light: #eef0f5;

  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-mid) 100%);
  --gradient-hero:    linear-gradient(135deg, rgba(13,27,110,0.82) 0%, rgba(0,0,205,0.60) 100%);

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.07);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg:  0 8px 28px rgba(0,0,0,0.14);
  --shadow-accent: 0 4px 20px rgba(255,127,80,0.45);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-pill: 40px;

  --font-base: 'Noto Sans JP', sans-serif;
  --header-h:  64px;
}

/* =====================================================
   リセット・ベース
   ===================================================== */
html {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
}

img {
  max-width: 100%;
  height: auto;
}

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

/* =====================================================
   サイトヘッダー（自社サイトと共通スタイル）
   ===================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--gradient-primary);
  box-shadow: 0 2px 16px rgba(0,0,0,0.30);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: var(--header-h);
}

.site-header__logo a {
  text-decoration: none;
}

.logo-en {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.3px;
  line-height: 1.2;
}

.logo-ja {
  font-size: 11px;
  color: rgba(255,255,255,0.80);
  letter-spacing: 1px;
  margin-top: 3px;
}

/* ナビ */
.site-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.site-nav ul li a {
  display: block;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.90);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}

.site-nav ul li a:hover {
  background: rgba(255,255,255,0.15);
  color: #fff;
}

.site-nav ul li a.nav-cta {
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
}

.site-nav ul li a.nav-cta:hover {
  background: var(--color-accent-dark);
}

/* ハンバーガー */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}

.nav-toggle:hover {
  background: rgba(255,255,255,0.12);
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
  transform-origin: center;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* =====================================================
   ヒーローセクション
   ===================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* 斜めストライプ背景アクセント */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      -55deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,0.03) 60px,
      rgba(255,255,255,0.03) 61px
    );
  pointer-events: none;
}

.hero__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent 0%, var(--color-bg) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
  padding: 120px 24px 80px;
  max-width: 760px;
}

.hero__sub {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 5px;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 20px;
  padding: 6px 16px;
  border: 1px solid rgba(255,127,80,0.45);
  border-radius: var(--radius-pill);
}

.hero__title {
  font-size: clamp(36px, 6.5vw, 58px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 5px;
  margin-bottom: 24px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.25);
}

.hero__desc {
  font-size: clamp(14px, 2vw, 16px);
  line-height: 2;
  color: rgba(255,255,255,0.88);
  margin-bottom: 44px;
}

.hero__btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__btn {
  display: inline-block;
  padding: 15px 40px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-pill);
  letter-spacing: 1px;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s, color 0.2s;
}

.hero__btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-accent);
}

.hero__btn--primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255,127,80,0.55);
}

.hero__btn--outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.65);
}

.hero__btn--outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
  transform: translateY(-2px);
}

/* =====================================================
   共通セクション
   ===================================================== */
.main-content {
  background: var(--color-bg);
}

.sec-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 20px;
}

.sec-title {
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 700;
  text-align: center;
  color: var(--color-primary);
  letter-spacing: 3px;
  margin-bottom: 8px;
}

.sec-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--color-accent);
  margin: 12px auto 0;
  border-radius: 2px;
}

.sec-sub {
  text-align: center;
  color: var(--color-text-light);
  font-size: 13px;
  letter-spacing: 1px;
  margin-top: 14px;
  margin-bottom: 48px;
}

/* =====================================================
   About セクション
   ===================================================== */
.sec-about {
  background: var(--color-bg-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text p {
  font-size: 14px;
  line-height: 2;
  color: #444;
  margin-bottom: 18px;
}

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

.about-text strong {
  color: var(--color-primary);
  font-weight: 700;
}

.about-model {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.model-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 24px 26px;
  border-left: 4px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.model-card__icon {
  font-size: 28px;
  margin-bottom: 10px;
  line-height: 1;
}

.model-card__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.model-card__text {
  font-size: 13px;
  line-height: 1.9;
  color: #555;
}

.model-card__text strong {
  color: var(--color-primary);
  font-weight: 700;
}

/* =====================================================
   Features セクション
   ===================================================== */
.sec-features {
  background: var(--color-bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  border-top: 4px solid var(--color-accent);
  transition: transform 0.25s, box-shadow 0.25s;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.feature-card__icon svg {
  width: 22px;
  height: 22px;
  color: var(--color-accent);
  stroke: var(--color-accent);
}

.feature-card__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.feature-card__text {
  font-size: 13px;
  line-height: 1.9;
  color: #555;
}

/* =====================================================
   Projects セクション
   ===================================================== */
.sec-projects {
  background: var(--color-bg-white);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: transform 0.25s, box-shadow 0.25s;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.project-card__tag {
  display: inline-block;
  background: var(--gradient-primary);
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
  text-transform: uppercase;
}

.project-card__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 14px;
  padding-left: 12px;
  border-left: 3px solid var(--color-accent);
  line-height: 1.4;
}

.project-card__list {
  list-style: none;
  padding: 0;
}

.project-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 13px;
  line-height: 1.9;
  color: #555;
  margin-bottom: 4px;
}

.project-card__list li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 11px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* =====================================================
   Contact セクション
   ===================================================== */
.sec-contact {
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.sec-contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      -55deg,
      transparent,
      transparent 80px,
      rgba(255,255,255,0.02) 80px,
      rgba(255,255,255,0.02) 81px
    );
  pointer-events: none;
}

.sec-contact .sec-inner {
  position: relative;
  z-index: 1;
}

.sec-contact .sec-title {
  color: #fff;
}

.sec-contact .sec-sub {
  color: rgba(255,255,255,0.75);
}

.contact-form-wrap {
  max-width: 720px;
  margin: 0 auto;
}

/* フォームメッセージ */
.form-message {
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 24px;
  font-size: 14px;
  line-height: 1.8;
}

.form-message--success {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.35);
  color: #fff;
}

.form-message--error {
  background: rgba(255,80,80,0.18);
  border: 1px solid rgba(255,80,80,0.55);
  color: #fff;
}

/* フォーム本体 */
.contact-form {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-md);
  padding: 40px 40px 36px;
  backdrop-filter: blur(4px);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 22px;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,0.92);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.form-required {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 3px;
  margin-left: 6px;
  letter-spacing: 0.5px;
  vertical-align: middle;
}

.form-optional {
  display: inline-block;
  background: rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.8);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 3px;
  margin-left: 6px;
  letter-spacing: 0.5px;
  vertical-align: middle;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.30);
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: var(--font-base);
  font-size: 14px;
  line-height: 1.6;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
  appearance: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: rgba(255,255,255,0.45);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255,255,255,0.15);
  box-shadow: 0 0 0 3px rgba(255,127,80,0.25);
}

/* セレクトボックス */
.form-select-wrap {
  position: relative;
}

.form-select-wrap::after {
  content: '';
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid rgba(255,255,255,0.65);
  pointer-events: none;
}

.form-select {
  cursor: pointer;
}

.form-select option {
  background: var(--color-primary);
  color: #fff;
}

/* テキストエリア */
.form-textarea {
  resize: vertical;
  min-height: 140px;
}

/* バリデーションエラー */
.form-error-msg {
  display: block;
  font-size: 12px;
  color: #ffb3a0;
  margin-top: 6px;
  min-height: 18px;
}

.form-input.is-error,
.form-select.is-error,
.form-textarea.is-error {
  border-color: #ff8070;
  background: rgba(255,80,80,0.12);
}

/* ポリシー同意チェックボックス */
.form-group--policy {
  margin-top: 8px;
}

.form-checkbox-label {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.form-checkbox {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.form-checkbox-custom {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.45);
  border-radius: 4px;
  background: rgba(255,255,255,0.08);
  transition: border-color 0.2s, background 0.2s;
  position: relative;
}

.form-checkbox:checked + .form-checkbox-custom {
  border-color: var(--color-accent);
  background: var(--color-accent);
}

.form-checkbox:checked + .form-checkbox-custom::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 1px;
  width: 8px;
  height: 12px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(40deg);
}

.form-checkbox:focus + .form-checkbox-custom {
  box-shadow: 0 0 0 3px rgba(255,127,80,0.30);
}

.form-checkbox-text {
  font-size: 13px;
  color: rgba(255,255,255,0.88);
  line-height: 1.6;
}

.form-checkbox-text a {
  color: var(--color-accent);
  text-decoration: underline;
  transition: color 0.2s;
}

.form-checkbox-text a:hover {
  color: #ffb08a;
}

/* reCAPTCHA エリア */
.form-group--recaptcha {
  margin-top: 6px;
}

/* 送信ボタン */
.form-submit-wrap {
  text-align: center;
  margin-top: 28px;
}

.form-submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 64px;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-base);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 2px;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  box-shadow: var(--shadow-accent);
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.form-submit-btn:hover:not(:disabled) {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255,127,80,0.55);
}

.form-submit-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

/* ローディングスピナー */
.form-submit-btn__spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* =====================================================
   フッター
   ===================================================== */
.site-footer {
  background: var(--color-primary);
  padding: 32px 20px;
}

.site-footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  text-align: center;
}

.footer-logo-en {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.footer-logo-ja {
  font-size: 11px;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.5px;
}

.site-footer__nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.site-footer__nav a {
  font-size: 12px;
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  transition: color 0.2s;
}

.site-footer__nav a:hover {
  color: var(--color-accent);
}

.site-footer__copy {
  font-size: 11px;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.5px;
}

/* =====================================================
   プライバシーポリシーページ
   ===================================================== */
.page-hero {
  margin-top: var(--header-h);
  padding: 64px 20px;
  background: var(--gradient-primary);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -55deg, transparent, transparent 60px,
    rgba(255,255,255,0.025) 60px, rgba(255,255,255,0.025) 61px
  );
  pointer-events: none;
}

.page-hero__content {
  position: relative;
  z-index: 1;
}

.page-hero__sub {
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.page-hero__title {
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 700;
  color: #fff;
  letter-spacing: 4px;
}

.privacy-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 64px 20px 80px;
}

.privacy-meta {
  background: var(--color-bg);
  border-left: 4px solid var(--color-accent);
  border-radius: 4px;
  padding: 16px 20px;
  margin-bottom: 40px;
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.8;
}

.privacy-content h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 40px 0 14px;
  padding-left: 14px;
  border-left: 4px solid var(--color-accent);
  line-height: 1.5;
}

.privacy-content h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 28px 0 10px;
}

.privacy-content p {
  font-size: 14px;
  line-height: 2;
  color: #444;
  margin-bottom: 14px;
}

.privacy-content ul,
.privacy-content ol {
  padding-left: 20px;
  margin-bottom: 18px;
}

.privacy-content li {
  font-size: 14px;
  line-height: 2;
  color: #444;
  margin-bottom: 4px;
}

.privacy-content a {
  color: var(--color-primary-mid);
  text-decoration: underline;
  transition: color 0.2s;
}

.privacy-content a:hover {
  color: var(--color-primary);
}

.privacy-sign {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-light);
  text-align: right;
}

/* =====================================================
   ユーティリティ
   ===================================================== */
.br-pc { display: inline; }
.br-sp { display: none; }

/* =====================================================
   レスポンシブ: タブレット (〜1024px)
   ===================================================== */
@media (max-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* =====================================================
   レスポンシブ: スマートフォン (〜767px)
   ===================================================== */
@media (max-width: 767px) {

  :root {
    --header-h: 56px;
  }

  /* ヘッダー */
  .site-header__inner {
    height: 56px;
    padding: 0 16px;
  }

  .logo-en {
    font-size: 11px;
  }

  .logo-ja {
    font-size: 10px;
  }

  /* ハンバーガー表示 */
  .nav-toggle {
    display: flex;
  }

  /* ナビ ドロワー */
  .site-nav {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--color-primary);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, box-shadow 0.35s ease;
    z-index: 99;
  }

  .site-nav.is-open {
    max-height: 400px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.30);
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 0 16px;
  }

  .site-nav ul li {
    width: 100%;
  }

  .site-nav ul li a {
    padding: 14px 24px;
    font-size: 15px;
    border-radius: 0;
    border-bottom: 1px solid rgba(255,255,255,0.07);
  }

  .site-nav ul li a.nav-cta {
    margin: 12px 24px 0;
    width: calc(100% - 48px);
    text-align: center;
    border-radius: 24px;
    border-bottom: none;
  }

  /* ヒーロー */
  .hero__content {
    padding: 100px 20px 70px;
  }

  .hero__title {
    font-size: clamp(30px, 8vw, 38px);
    letter-spacing: 3px;
  }

  .hero__desc {
    font-size: 13px;
  }

  .br-pc { display: none; }
  .br-sp { display: block; }

  .hero__btns {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .hero__btn {
    width: 100%;
    max-width: 280px;
    text-align: center;
    padding: 14px 24px;
    font-size: 14px;
  }

  /* セクション共通 */
  .sec-inner {
    padding: 56px 16px;
  }

  .sec-title {
    font-size: 20px;
    letter-spacing: 2px;
  }

  .sec-sub {
    margin-bottom: 36px;
  }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  /* Features */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .feature-card {
    padding: 24px 22px;
  }

  /* Projects */
  .projects-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Contact Form */
  .contact-form {
    padding: 28px 20px 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .form-submit-btn {
    width: 100%;
    max-width: 320px;
    padding: 15px 24px;
    font-size: 15px;
  }

  /* Privacy */
  .page-hero {
    padding: 48px 16px;
  }

  .privacy-content {
    padding: 48px 16px 64px;
  }

  .privacy-content h2 {
    font-size: 16px;
    margin: 32px 0 12px;
  }
}