/* ============================================================
   チームみらい応援サイト - メインスタイルシート
   ============================================================ */

/* --- CSS Variables --- */
:root {
  --color-primary: #00b894;
  --color-primary-dark: #00a381;
  --color-primary-light: #55efc4;
  --color-primary-ultra-light: #e8faf5;
  --color-primary-pale: #f0fdf9;
  --color-accent: #0984e3;
  --color-accent-light: #74b9ff;
  --color-text: #2d3436;
  --color-text-light: #636e72;
  --color-text-muted: #b2bec3;
  --color-bg: #ffffff;
  --color-bg-sub: #f8fffe;
  --color-bg-card: #ffffff;
  --color-border: #dfe6e9;
  --color-border-light: #eef2f1;
  --color-shadow: rgba(0, 184, 148, 0.08);
  --color-shadow-deep: rgba(0, 0, 0, 0.06);
  --color-danger: #d63031;
  --color-warning: #fdcb6e;
  --color-tag-bg: #e8faf5;
  --color-tag-text: #00a381;

  --font-main: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "BIZ UDPGothic", sans-serif;
  --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;

  --max-width: 1200px;
  --max-width-narrow: 800px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px var(--color-shadow-deep);
  --shadow-md: 0 4px 12px var(--color-shadow);
  --shadow-lg: 0 8px 30px var(--color-shadow);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-card-hover: 0 8px 24px rgba(0, 184, 148, 0.12), 0 2px 8px rgba(0, 0, 0, 0.06);

  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

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

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text);
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }

p {
  margin-bottom: 1em;
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

.section {
  padding: 80px 0;
}

.section--alt {
  background: var(--color-bg-sub);
}

.section--primary {
  background: linear-gradient(135deg, var(--color-primary-ultra-light) 0%, #fff 60%);
}

.section__title {
  text-align: center;
  margin-bottom: 16px;
  position: relative;
}

.section__title::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  margin: 12px auto 0;
}

.section__subtitle {
  text-align: center;
  color: var(--color-text-light);
  margin-bottom: 48px;
  font-size: 0.95rem;
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition);
}

.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-text);
}

.header__logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
}

.header__logo-text span {
  color: var(--color-primary);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.header__nav a {
  font-size: 0.9rem;
  color: var(--color-text-light);
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.header__nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
}

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

.header__nav a:hover::after {
  width: 100%;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  z-index: 999;
  padding: 32px 24px;
}

.mobile-nav.active {
  display: flex;
  flex-direction: column;
  gap: 8px;
  animation: fadeIn 0.3s ease;
}

.mobile-nav a {
  display: block;
  padding: 14px 16px;
  font-size: 1rem;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: background var(--transition);
}

.mobile-nav a:hover {
  background: var(--color-primary-ultra-light);
  color: var(--color-primary);
}

/* --- Hero --- */
.hero {
  position: relative;
  padding: 140px 0 100px;
  background: linear-gradient(160deg, #f0fdf9 0%, #e8faf5 30%, #fff 70%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 70%;
  height: 140%;
  background: radial-gradient(circle, rgba(0, 184, 148, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border-light), transparent);
}

.hero__inner {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary-ultra-light);
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(0, 184, 148, 0.15);
  margin-bottom: 20px;
}

.hero__badge::before {
  content: "●";
  font-size: 0.5rem;
  animation: pulse 2s infinite;
}

.hero__title {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero__title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: 1.05rem;
  color: var(--color-text-light);
  line-height: 1.85;
  margin-bottom: 32px;
}

/* Search Box */
.search-box {
  position: relative;
  max-width: 480px;
}

.search-box__input {
  width: 100%;
  padding: 14px 48px 14px 20px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-family: var(--font-main);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.search-box__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(0, 184, 148, 0.1);
}

.search-box__input::placeholder {
  color: var(--color-text-muted);
}

.search-box__btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border: none;
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform var(--transition);
}

.search-box__btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-50%) scale(1.05);
}

.search-box__btn svg {
  width: 18px;
  height: 18px;
}

/* Hero Visual */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  width: 100%;
  max-width: 400px;
}

.stat-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border-light);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}

.stat-card__number {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-en);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-card__label {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 4px;
}

/* Search Results Dropdown */
.search-results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  border: 1px solid var(--color-border-light);
  max-height: 400px;
  overflow-y: auto;
  display: none;
  z-index: 100;
}

.search-results.active {
  display: block;
  animation: slideDown 0.2s ease;
}

.search-results__item {
  display: block;
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border-light);
  transition: background var(--transition);
}

.search-results__item:last-child {
  border-bottom: none;
}

.search-results__item:hover {
  background: var(--color-primary-ultra-light);
}

.search-results__item-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
  margin-bottom: 2px;
}

.search-results__item-category {
  font-size: 0.75rem;
  color: var(--color-primary);
}

.search-results__empty {
  padding: 24px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* --- Policy Categories --- */
.policy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.policy-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
}

.policy-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  color: inherit;
}

.policy-card__icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary-ultra-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.policy-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.policy-card__description {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 12px;
}

.policy-card__link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.policy-card__link::after {
  content: "→";
  transition: transform var(--transition);
}

.policy-card:hover .policy-card__link::after {
  transform: translateX(3px);
}

/* --- Featured Articles --- */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  color: inherit;
  display: block;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  color: inherit;
}

.article-card__image {
  width: 100%;
  height: 180px;
  background: linear-gradient(135deg, var(--color-primary-ultra-light), var(--color-primary-pale));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}

.article-card__image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(255,255,255,0.3), transparent);
}

.article-card__body {
  padding: 20px;
}

.article-card__tag {
  display: inline-block;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 10px;
}

.article-card__title {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card__excerpt {
  font-size: 0.8rem;
  color: var(--color-text-light);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- All Articles --- */
.all-articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.all-articles-grid a {
  display: block;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  color: var(--color-text);
  font-size: 0.84rem;
  font-weight: 500;
  line-height: 1.6;
  padding: 14px 16px;
  transition: transform var(--transition), box-shadow var(--transition), color var(--transition);
}

.all-articles-grid a:hover {
  color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

/* --- Comparison Table --- */
.comparison-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border-light);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
}

.comparison-table th,
.comparison-table td {
  padding: 14px 18px;
  text-align: left;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--color-border-light);
}

.comparison-table thead th {
  background: var(--color-primary-ultra-light);
  font-weight: 700;
  color: var(--color-text);
  position: sticky;
  top: 0;
}

.comparison-table thead th:first-child {
  border-radius: var(--radius-lg) 0 0 0;
}

.comparison-table thead th:last-child {
  border-radius: 0 var(--radius-lg) 0 0;
}

.comparison-table thead th.highlight {
  background: var(--color-primary);
  color: #fff;
}

.comparison-table tbody tr:hover {
  background: var(--color-primary-pale);
}

.comparison-table tbody td:nth-child(2) {
  font-weight: 600;
  color: var(--color-primary-dark);
}

.comparison-table .check {
  color: var(--color-primary);
  font-weight: 700;
}

.comparison-table .cross {
  color: var(--color-text-muted);
}

/* --- Features --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-item {
  text-align: center;
  padding: 32px 24px;
}

.feature-item__icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--color-primary-ultra-light), var(--color-primary-pale));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 20px;
  border: 2px solid rgba(0, 184, 148, 0.1);
}

.feature-item__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-item__text {
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* --- CTA --- */
.cta {
  text-align: center;
  padding: 80px 0;
  background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -30%;
  width: 80%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
}

.cta__title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: #fff;
}

.cta__text {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

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

.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 184, 148, 0.3);
  color: #fff;
}

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

.btn--white:hover {
  background: #f0fdf9;
  transform: translateY(-1px);
  color: var(--color-primary-dark);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn--lg {
  padding: 16px 36px;
  font-size: 1rem;
}

/* --- Footer --- */
.footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 32px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer__brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.footer__brand span {
  color: var(--color-primary-light);
}

.footer__description {
  font-size: 0.85rem;
  line-height: 1.7;
}

.footer__heading {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__links a {
  display: block;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  padding: 4px 0;
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--color-primary-light);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
}

.footer__disclaimer {
  font-size: 0.75rem;
  opacity: 0.5;
  margin-top: 8px;
}

/* --- Article Page Styles --- */
.article-header {
  padding: 120px 0 48px;
  background: linear-gradient(160deg, #f0fdf9 0%, #e8faf5 30%, #fff 70%);
}

.article-header__breadcrumb {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.article-header__breadcrumb a {
  color: var(--color-text-light);
}

.article-header__breadcrumb a:hover {
  color: var(--color-primary);
}

.article-header__tag {
  display: inline-block;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.article-header__title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.article-header__meta {
  font-size: 0.85rem;
  color: var(--color-text-light);
  display: flex;
  gap: 20px;
  align-items: center;
}

/* Article Content */
.article-content {
  padding: 48px 0 80px;
}

.article-content__inner {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
}

.article-body h2 {
  font-size: 1.5rem;
  margin: 48px 0 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary-ultra-light);
  position: relative;
}

.article-body h2::before {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 48px;
  height: 2px;
  background: var(--color-primary);
}

.article-body h3 {
  font-size: 1.2rem;
  margin: 32px 0 14px;
  padding-left: 14px;
  border-left: 3px solid var(--color-primary);
}

.article-body p {
  margin-bottom: 1.5em;
  line-height: 1.9;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.5em 1.5em;
}

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: 0.5em;
  line-height: 1.8;
}

.article-body strong {
  color: var(--color-primary-dark);
  font-weight: 700;
}

/* Callout Box */
.callout {
  background: var(--color-primary-ultra-light);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 20px 24px;
  margin: 24px 0;
}

.callout--warning {
  background: #fff9e6;
  border-left-color: var(--color-warning);
}

.callout__title {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.callout__text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* Info Box */
.info-box {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin: 24px 0;
}

.info-box__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.info-box__content {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* Sidebar */
.sidebar {
  position: sticky;
  top: 88px;
}

.sidebar__toc {
  background: var(--color-bg-sub);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--color-border-light);
}

.sidebar__toc-title {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border-light);
}

.sidebar__toc-list a {
  display: block;
  font-size: 0.82rem;
  color: var(--color-text-light);
  padding: 6px 0 6px 12px;
  border-left: 2px solid transparent;
  transition: all var(--transition);
}

.sidebar__toc-list a:hover,
.sidebar__toc-list a.active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

.sidebar__related {
  margin-top: 24px;
  background: var(--color-bg-sub);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--color-border-light);
}

.sidebar__related-title {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.sidebar__related-item {
  display: block;
  font-size: 0.82rem;
  color: var(--color-text);
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border-light);
  line-height: 1.5;
}

.sidebar__related-item:last-child {
  border-bottom: none;
}

.sidebar__related-item:hover {
  color: var(--color-primary);
}

/* --- Animations --- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero__visual {
    order: -1;
  }

  .hero__stats {
    max-width: 100%;
  }

  .policy-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .all-articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }

  .article-content__inner {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  .header__nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero__title {
    font-size: 1.85rem;
  }

  .hero__stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .section {
    padding: 56px 0;
  }

  .policy-grid {
    grid-template-columns: 1fr;
  }

  .articles-grid {
    grid-template-columns: 1fr;
  }

  .all-articles-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .article-header__title {
    font-size: 1.6rem;
  }

  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.35rem; }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero__title {
    font-size: 1.6rem;
  }

  .hero__stats {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .stat-card {
    padding: 16px;
  }

  .stat-card__number {
    font-size: 1.5rem;
  }

  .cta__title {
    font-size: 1.5rem;
  }
}