/* ========================================
   0. CSS変数
   ======================================== */
:root {
  --color-black: #1a1a1a;
  --color-dark: #2c2c2c;
  --color-gray: #6b6b6b;
  --color-light: #a8a8a8;
  --color-border: #e0ddd8;
  --color-cream: #f8f6f2;
  --color-white: #ffffff;
  --color-accent: #c8a96e;
  --color-accent-dark: #b8944e;

  --font-serif: 'Cormorant Garamond', 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  --header-height: 80px;
  --section-pad: clamp(80px, 10vw, 140px);
}

/* ========================================
   1. リセット・ベース
   ======================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--color-black);
  background: var(--color-white);
  line-height: 1.8;
  overflow-x: hidden;
}

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

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

/* ========================================
   2. ローディング
   ======================================== */
.a9-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s var(--ease-out), visibility 0.6s;
}

.a9-loader.is-loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.a9-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.a9-loader__logo {
  animation: loaderFade 1.5s var(--ease-out) forwards;
}

.a9-loader__logo img {
  width: 160px;
}

@keyframes loaderFade {
  0% { opacity: 0; transform: translateY(20px); }
  50% { opacity: 1; transform: translateY(0); }
  100% { opacity: 1; transform: translateY(0); }
}

/* ========================================
   3. ヘッダー
   ======================================== */
.a9-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  transition: background 0.4s, box-shadow 0.4s, backdrop-filter 0.4s;
}

.a9-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.a9-header__inner {
  max-width: 100%;
  margin: 0 auto;
  padding: 0 40px;
  height: 100%;
  display: flex;
  align-items: center;
}

.a9-header__logo {
  display: flex;
  align-items: center;
  position: relative;
  z-index: 101;
  margin-right: auto;
}

.a9-header__logo img {
  height: 36px;
  width: auto;
  transition: opacity 0.4s;
}

.a9-header__logo-white {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}

.a9-header__logo-dark { opacity: 0; }
.a9-header__logo-white { opacity: 1; }

.a9-header.is-scrolled .a9-header__logo-dark { opacity: 1; }
.a9-header.is-scrolled .a9-header__logo-white { opacity: 0; }

.a9-header__nav {
  display: flex;
  gap: 36px;
}

.a9-header__nav-link {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-white);
  transition: color 0.4s, opacity 0.3s;
  position: relative;
}

.a9-header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width 0.4s var(--ease-out);
}

.a9-header__nav-link:hover::after {
  width: 100%;
}

.a9-header.is-scrolled .a9-header__nav-link {
  color: var(--color-black);
}

/* CTA ボタン（ヘッダー右端） */
.a9-header__actions {
  margin-left: 40px;
}

.a9-header__cta {
  display: inline-block;
  padding: 10px 28px;
  font-family: var(--font-serif);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,0.5);
  transition: all 0.4s var(--ease-out);
}

.a9-header__cta:hover {
  background: var(--color-white);
  color: var(--color-black);
}

.a9-header.is-scrolled .a9-header__cta {
  color: var(--color-white);
  background: var(--color-black);
  border-color: var(--color-black);
}

.a9-header.is-scrolled .a9-header__cta:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

/* ハンバーガー */
.a9-header__hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 32px;
  height: 24px;
  position: relative;
  z-index: 101;
}

.a9-header__hamburger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-white);
  position: absolute;
  left: 0;
  transition: all 0.4s var(--ease-out);
}

.a9-header.is-scrolled .a9-header__hamburger span {
  background: var(--color-black);
}

.a9-header__hamburger span:nth-child(1) { top: 0; }
.a9-header__hamburger span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.a9-header__hamburger span:nth-child(3) { bottom: 0; }

.a9-header__hamburger.is-active span:nth-child(1) {
  top: 50%; transform: translateY(-50%) rotate(45deg);
}
.a9-header__hamburger.is-active span:nth-child(2) {
  opacity: 0;
}
.a9-header__hamburger.is-active span:nth-child(3) {
  bottom: 50%; transform: translateY(50%) rotate(-45deg);
}

.a9-header__hamburger.is-active span {
  background: var(--color-white) !important;
}

/* モバイルメニュー */
.a9-mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s var(--ease-out), visibility 0.5s;
}

.a9-mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
}

.a9-mobile-menu__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.a9-mobile-menu__link {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--color-white);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}

.a9-mobile-menu.is-open .a9-mobile-menu__link {
  opacity: 1;
  transform: translateY(0);
}

.a9-mobile-menu.is-open .a9-mobile-menu__link:nth-child(1) { transition-delay: 0.1s; }
.a9-mobile-menu.is-open .a9-mobile-menu__link:nth-child(2) { transition-delay: 0.15s; }
.a9-mobile-menu.is-open .a9-mobile-menu__link:nth-child(3) { transition-delay: 0.2s; }
.a9-mobile-menu.is-open .a9-mobile-menu__link:nth-child(4) { transition-delay: 0.25s; }
.a9-mobile-menu.is-open .a9-mobile-menu__link:nth-child(5) { transition-delay: 0.3s; }

/* ========================================
   4. ヒーロー（dac-web風 大型タイポグラフィ）
   ======================================== */
.a9-hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.a9-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.a9-hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(26, 26, 26, 0.55) 0%,
    rgba(26, 26, 26, 0.35) 50%,
    rgba(26, 26, 26, 0.15) 100%
  );
}

.a9-hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  transform: scale(1.05);
  animation: heroZoom 15s var(--ease-in-out) forwards;
}

@keyframes heroZoom {
  to { transform: scale(1); }
}

/* 装飾カーブ（右側・dac-webの赤→Baum283のゴールド） */
.a9-hero__curve {
  position: absolute;
  top: 0;
  right: -5%;
  width: 35%;
  height: 100%;
  z-index: 1;
  opacity: 0.2;
  animation: curveSlideIn 1.2s var(--ease-out) 0.5s both;
}

.a9-hero__curve svg {
  width: 100%;
  height: 100%;
}

@keyframes curveSlideIn {
  from { transform: translateX(60%); opacity: 0; }
  to { transform: translateX(0); opacity: 0.2; }
}

/* メインタイポグラフィ（超大型・画面中央） */
.a9-hero__content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  text-align: center;
  color: var(--color-white);
  width: 90%;
}

.a9-hero__title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(3rem, 9vw, 8rem);
  letter-spacing: 0.08em;
  line-height: 1.2;
  white-space: nowrap;
}

.a9-hero__title-line {
  display: block;
  opacity: 0;
  transform: translateY(40px);
  animation: heroTextIn 1s var(--ease-out) forwards;
}

.a9-hero__title-line:nth-child(1) { animation-delay: 0.8s; }
.a9-hero__title-line:nth-child(2) { animation-delay: 1.0s; }

@keyframes heroTextIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 左下ニュースティッカー */
.a9-hero__news {
  position: absolute;
  bottom: 32px;
  left: 40px;
  z-index: 3;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: 420px;
  opacity: 0;
  animation: heroTextIn 0.8s var(--ease-out) 1.8s forwards;
}

.a9-hero__news-date {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  color: var(--color-gray);
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.a9-hero__news-title {
  font-size: 0.8rem;
  color: var(--color-black);
  letter-spacing: 0.04em;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.a9-hero__news-arrows {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex-shrink: 0;
  margin-left: auto;
}

.a9-hero__news-arrow {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--color-gray);
  line-height: 1;
  padding: 0 4px;
  transition: color 0.3s;
}

.a9-hero__news-arrow:hover {
  color: var(--color-black);
}

/* 右下スクロールインジケーター */
.a9-hero__scroll {
  position: absolute;
  bottom: 38px;
  right: 40px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-white);
  opacity: 0;
  animation: heroTextIn 0.8s var(--ease-out) 2s forwards;
}

.a9-hero__scroll-paren {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-weight: 300;
}

.a9-hero__scroll-text {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: capitalize;
}

.a9-hero__scroll-arrow {
  font-size: 0.85rem;
  animation: scrollBounce 2s var(--ease-in-out) infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

/* ========================================
   5. セクション共通
   ======================================== */
.a9-section {
  padding: var(--section-pad) 0;
}

.a9-section__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.a9-section__label {
  font-family: var(--font-serif);
  font-size: clamp(0.75rem, 1vw, 0.85rem);
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.a9-section__heading {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  letter-spacing: 0.1em;
  line-height: 1.5;
  margin-bottom: 48px;
  color: var(--color-black);
}

/* ========================================
   6. コンセプト
   ======================================== */
.a9-concept {
  background: var(--color-white);
}

.a9-concept__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.a9-concept__desc {
  font-size: 0.95rem;
  line-height: 2.2;
  color: var(--color-dark);
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}

.a9-concept__desc:last-child {
  margin-bottom: 0;
}

.a9-concept__images {
  position: relative;
}

.a9-concept__img-main {
  overflow: hidden;
  border-radius: 4px;
}

.a9-concept__img-main img {
  transition: transform 0.8s var(--ease-out);
}

.a9-concept__img-main:hover img {
  transform: scale(1.03);
}

.a9-concept__img-sub {
  position: absolute;
  bottom: -40px;
  left: -40px;
  width: 45%;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.a9-concept__img-sub img {
  transition: transform 0.8s var(--ease-out);
}

.a9-concept__img-sub:hover img {
  transform: scale(1.03);
}

/* ========================================
   7. ウェーブ区切り
   ======================================== */
.a9-wave {
  margin-top: -1px;
}

.a9-wave svg {
  display: block;
  width: 100%;
  height: 80px;
}

.a9-wave--reverse {
  margin-top: 0;
  margin-bottom: -1px;
}

/* ========================================
   8. 商品紹介
   ======================================== */
.a9-items {
  background: var(--color-cream);
}

.a9-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 100px;
}

.a9-item:last-child {
  margin-bottom: 0;
}

.a9-item--reverse {
  direction: rtl;
}

.a9-item--reverse > * {
  direction: ltr;
}

.a9-item__image {
  overflow: hidden;
  border-radius: 4px;
  position: relative;
}

.a9-item__image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out);
}

.a9-item__image:hover img {
  transform: scale(1.04);
}

.a9-item__number {
  font-family: var(--font-serif);
  font-size: 4rem;
  font-weight: 300;
  color: var(--color-accent);
  opacity: 0.4;
  line-height: 1;
  display: block;
  margin-bottom: 16px;
}

.a9-item__name {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3vw, 2.8rem);
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.a9-item__name-jp {
  font-size: 0.8rem;
  color: var(--color-gray);
  letter-spacing: 0.2em;
  margin-bottom: 24px;
}

.a9-item__desc {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--color-dark);
  letter-spacing: 0.04em;
}

/* ========================================
   9. フォトギャラリー（横スクロール）
   ======================================== */
.a9-gallery {
  padding: 60px 0;
  overflow: hidden;
}

.a9-gallery__track {
  display: flex;
  gap: 16px;
  animation: galleryScroll 30s linear infinite;
  width: max-content;
}

.a9-gallery__item {
  flex: 0 0 auto;
  width: 320px;
  height: 240px;
  overflow: hidden;
  border-radius: 4px;
}

.a9-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.a9-gallery__item:hover img {
  transform: scale(1.05);
}

@keyframes galleryScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ========================================
   10. ショップ情報
   ======================================== */
.a9-shop__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.a9-shop__dl {
  margin-bottom: 40px;
}

.a9-shop__dl-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.a9-shop__dl-row:first-child {
  border-top: 1px solid var(--color-border);
}

.a9-shop__dl-row dt {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gray);
  letter-spacing: 0.08em;
}

.a9-shop__dl-row dd {
  font-size: 0.95rem;
  line-height: 1.8;
}

.a9-shop__dl-row dd a {
  transition: color 0.3s;
}

.a9-shop__dl-row dd a:hover {
  color: var(--color-accent);
}

.a9-shop__map {
  border-radius: 4px;
  overflow: hidden;
  height: 400px;
  background: var(--color-cream);
}

.a9-shop__map iframe {
  display: block;
}

/* ボタン */
.a9-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 40px;
  border: 1px solid var(--color-black);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  transition: all 0.4s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.a9-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-black);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.a9-btn:hover::before {
  transform: scaleX(1);
}

.a9-btn__text,
.a9-btn__arrow {
  position: relative;
  z-index: 1;
  transition: color 0.4s;
}

.a9-btn:hover .a9-btn__text,
.a9-btn:hover .a9-btn__arrow {
  color: var(--color-white);
}

.a9-btn__arrow {
  transition: transform 0.4s var(--ease-out), color 0.4s;
}

.a9-btn:hover .a9-btn__arrow {
  transform: translateX(4px);
}

/* ========================================
   11. ニュース
   ======================================== */
.a9-news {
  background: var(--color-cream);
}

.a9-news__list {
  max-width: 800px;
}

.a9-news__item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
  transition: opacity 0.3s;
}

.a9-news__item:first-child {
  border-top: 1px solid var(--color-border);
}

.a9-news__item:hover {
  opacity: 0.6;
}

.a9-news__date {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--color-gray);
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.a9-news__tag {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  padding: 2px 12px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent-dark);
  border-radius: 2px;
  flex-shrink: 0;
}

.a9-news__title {
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}

/* ========================================
   12. フッター
   ======================================== */
.a9-footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: 80px 0 40px;
}

.a9-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  text-align: center;
}

.a9-footer__logo {
  margin-bottom: 40px;
}

.a9-footer__logo img {
  margin: 0 auto;
  height: 48px;
  width: auto;
}

.a9-footer__nav {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 40px;
}

.a9-footer__nav a {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.3s;
}

.a9-footer__nav a:hover {
  color: var(--color-white);
}

.a9-footer__info {
  margin-bottom: 32px;
}

.a9-footer__info p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 2;
  letter-spacing: 0.06em;
}

.a9-footer__info a {
  transition: color 0.3s;
}

.a9-footer__info a:hover {
  color: var(--color-white);
}

.a9-footer__sns {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 40px;
}

.a9-footer__sns a {
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.3s, transform 0.3s;
}

.a9-footer__sns a:hover {
  color: var(--color-white);
  transform: translateY(-2px);
}

.a9-footer__copy {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.3);
  letter-spacing: 0.1em;
}

/* ========================================
   13. アニメーション
   ======================================== */
[data-animate] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   14. レスポンシブ
   ======================================== */
@media (max-width: 1024px) {
  .a9-concept__grid {
    gap: 60px;
  }

  .a9-item {
    gap: 48px;
    margin-bottom: 80px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .a9-header__inner {
    padding: 0 20px;
  }

  .a9-header__nav {
    display: none;
  }

  .a9-header__actions {
    display: none;
  }

  .a9-header__hamburger {
    display: block;
  }

  /* ヒーロー レスポンシブ */
  .a9-hero__title {
    font-size: clamp(2.5rem, 12vw, 5rem);
    white-space: normal;
  }

  .a9-hero__curve {
    width: 45%;
    right: -10%;
    opacity: 0.6;
  }

  .a9-hero__news {
    left: 20px;
    right: 20px;
    max-width: none;
    bottom: 80px;
  }

  .a9-hero__scroll {
    right: 20px;
    bottom: 24px;
  }

  .a9-section__inner {
    padding: 0 24px;
  }

  .a9-section__heading {
    margin-bottom: 36px;
  }

  .a9-hero__content {
    padding: 0 24px;
  }

  .a9-sp-hide {
    display: none;
  }

  /* コンセプト */
  .a9-concept__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .a9-concept__img-sub {
    position: relative;
    bottom: auto;
    left: auto;
    width: 60%;
    margin-top: -20%;
    margin-left: auto;
  }

  /* 商品 */
  .a9-item,
  .a9-item--reverse {
    grid-template-columns: 1fr;
    gap: 32px;
    direction: ltr;
  }

  .a9-item__number {
    font-size: 3rem;
  }

  /* ギャラリー */
  .a9-gallery__item {
    width: 240px;
    height: 180px;
  }

  /* ショップ */
  .a9-shop__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .a9-shop__map {
    height: 300px;
  }

  /* ニュース */
  .a9-news__item {
    flex-wrap: wrap;
    gap: 8px 16px;
  }

  .a9-news__title {
    flex-basis: 100%;
  }

  /* フッター */
  .a9-footer__nav {
    flex-wrap: wrap;
    gap: 16px 24px;
  }
}

@media (max-width: 480px) {
  .a9-hero__title {
    font-size: 2.2rem;
  }

  .a9-section__heading {
    font-size: 1.5rem;
  }

  .a9-item__name {
    font-size: 1.75rem;
  }
}