@import url('https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@300;400;500;600;700&family=Rubik:wght@300;400;500;600;700&display=swap');

/* =====================
   CSS 自定义属性
   ===================== */
:root {
  --c-primary: #FF4D6D;
  --c-dark: #1A1A2E;
  --c-light: #F5F5F5;
  --c-primary-dark: #e6364f;
  --c-primary-light: #ff6b84;
  --c-dark-2: #252542;
  --c-dark-3: #0f0f1c;
  --c-muted: #888899;
  --c-border: #2e2e50;
  --c-text: #e8e8f0;
  --c-text-muted: #a0a0b8;
  --c-card-bg: rgba(255,255,255,0.04);
  --c-card-border: rgba(255,77,109,0.2);

  --font-main: 'Rubik', 'Nunito Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Nunito Sans', 'Rubik', system-ui, -apple-system, sans-serif;

  --header-h: 110px;
  --radius: 0px;
  --transition: 160ms ease;
  --max-w: 1200px;
  --content-max: 820px;
}

/* =====================
   重置与基础
   ===================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-dark);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--c-primary);
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}
a:hover { color: var(--c-primary-light); }

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

ul, menu {
  list-style: none;
}

hr {
  border: none;
  border-top: 2px solid var(--c-primary);
  margin: 0.75rem 0 1rem;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-main);
  font-weight: 700;
  line-height: 1.25;
  color: var(--c-light);
}

h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.3rem, 2.5vw, 1.9rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* =====================
   布局容器
   ===================== */
.site-wrap {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

/* =====================
   顶部导航（两行结构）
   ===================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-dark-3);
  border-bottom: 2px solid var(--c-primary);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--c-dark-3);
  border-bottom: 1px solid var(--c-border);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--c-light);
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}
.brand-link:hover { color: var(--c-primary); }

.brand-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.brand-name {
  color: inherit;
}

.brand-slogan {
  font-size: 0.78rem;
  color: var(--c-muted);
  font-weight: 400;
  margin-left: auto;
  display: none;
}

/* 导航行：details > summary + menu > li > a */
.site-nav {
  background: var(--c-dark-2);
}

.nav-details {
  width: 100%;
}

.nav-details[open] > summary {
  border-bottom: 1px solid var(--c-border);
}

.nav-toggle {
  display: none;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  font-family: var(--font-main);
  font-weight: 600;
  color: var(--c-light);
  list-style: none;
  user-select: none;
  min-height: 44px;
  align-items: center;
}
.nav-toggle::-webkit-details-marker { display: none; }

.nav-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  padding: 0 0.75rem;
}

.nav-menu li {
  display: flex;
}

.nav-menu li a {
  display: flex;
  align-items: center;
  padding: 0.7rem 0.85rem;
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-text-muted);
  white-space: nowrap;
  min-height: 44px;
  transition: color var(--transition), background var(--transition);
  border-bottom: 2px solid transparent;
}

.nav-menu li a:hover {
  color: var(--c-primary);
  border-bottom-color: var(--c-primary);
  background: rgba(255,77,109,0.07);
}

/* =====================
   Hero：首页
   ===================== */
.page-home .hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 45vh;
  background: var(--c-dark-3);
  border-bottom: 2px solid var(--c-primary);
  padding: 3rem 1.5rem 0;
  text-align: center;
  overflow: hidden;
  position: relative;
}

.hero-text {
  max-width: 700px;
  z-index: 2;
}

.hero-text h1 {
  color: var(--c-light);
  margin-bottom: 0.75rem;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--c-text-muted);
  margin-bottom: 1.5rem;
}

.hero-figure {
  width: 100%;
  max-width: 500px;
  margin: 1.5rem auto 0;
  overflow: hidden;
  border: 2px solid var(--c-border);
  background: var(--c-card-bg);
  min-height: 80px;
}

.hero-figure--empty {
  min-height: 60px;
}

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

/* =====================
   Btn 按钮
   ===================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.75rem;
  background: var(--c-primary);
  color: var(--c-light);
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid var(--c-primary);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  min-height: 44px;
  letter-spacing: 0.03em;
}
.btn-primary:hover {
  background: var(--c-primary-dark);
  color: var(--c-light);
  border-color: var(--c-primary-dark);
}

/* =====================
   内容区：两栏（aside 右侧）
   ===================== */
.content-section {
  display: flex;
  flex-direction: row-reverse;
  gap: 2rem;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  width: 100%;
}

.content-aside {
  flex: 0 0 260px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.content-body {
  flex: 1;
  min-width: 0;
}

/* aside 块 */
.aside-block {
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-border);
  padding: 1.25rem;
}

.aside-title {
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0.06em;
  color: var(--c-primary);
  margin-bottom: 0.25rem;
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-top: 0.5rem;
}

.aside-links li a {
  display: block;
  font-size: 0.85rem;
  color: var(--c-text-muted);
  padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.aside-links li a:hover {
  color: var(--c-primary);
  border-bottom-color: var(--c-primary);
}

/* =====================
   page-hero（内页）
   ===================== */
.page-hero {
  display: flex;
  flex-direction: column;
  background: var(--c-dark-3);
  border-bottom: 2px solid var(--c-primary);
  padding: 2.5rem 1.5rem 0;
  max-width: 100%;
  overflow: hidden;
}

.page-hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
  padding-bottom: 1.5rem;
}

.page-tag {
  display: inline-block;
  background: var(--c-primary);
  color: var(--c-light);
  font-family: var(--font-main);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.65rem;
  margin-bottom: 0.75rem;
}

.page-tag--compare { background: #7B2FFF; }
.page-tag--ranking { background: #FF8C00; }
.page-tag--faq { background: #00A8A8; }
.page-tag--about { background: var(--c-dark-2); border: 1px solid var(--c-primary); }
.page-tag--privacy { background: var(--c-dark-2); border: 1px solid var(--c-muted); }

.page-lead {
  font-size: 1rem;
  color: var(--c-text-muted);
  max-width: 680px;
  margin-top: 0.5rem;
}

.page-hero-fig {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  border: 2px solid var(--c-border);
  background: var(--c-card-bg);
  min-height: 60px;
  overflow: hidden;
}

.page-hero-fig--empty { min-height: 40px; }

/* compare hero 图 */
.page-hero-fig--compare,
.page-hero-fig--faq,
.page-hero-fig--about,
.page-hero-fig--privacy {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80px;
  padding: 1.5rem;
}

.compare-icon-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.compare-icon {
  font-family: var(--font-main);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--c-primary);
  background: var(--c-dark-2);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--c-primary);
}
.compare-vs {
  font-family: var(--font-main);
  font-weight: 900;
  font-size: 1rem;
  color: var(--c-muted);
  letter-spacing: 0.1em;
}

/* ranking podium */
.ranking-podium-fig {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  min-height: 90px;
  padding: 0 1.5rem;
  border: 2px solid var(--c-border);
  background: var(--c-card-bg);
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
}

.ranking-podium {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  padding-bottom: 0;
}

.podium-bar {
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--c-light);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 0.5rem;
  width: 60px;
}

.podium-bar--1 { background: var(--c-primary); height: 70px; }
.podium-bar--2 { background: var(--c-dark-2); height: 50px; border: 2px solid var(--c-primary); }
.podium-bar--3 { background: var(--c-dark-2); height: 38px; border: 2px solid var(--c-muted); }

/* faq icon */
.faq-icon {
  font-family: var(--font-main);
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--c-primary);
  line-height: 1;
}

/* about display */
.about-brand-display {
  font-family: var(--font-main);
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 900;
  color: var(--c-primary);
  letter-spacing: 0.05em;
  text-align: center;
}

/* privacy icon */
.privacy-icon svg { display: block; }

/* =====================
   page-meta（日期）
   ===================== */
.page-meta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0.6rem 0;
  font-size: 0.82rem;
  color: var(--c-muted);
}
.meta-label {
  font-weight: 600;
  color: var(--c-primary);
}
.meta-sep { color: var(--c-border); }

/* =====================
   page-content 正文样式
   ===================== */
.page-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
  max-width: var(--content-max);
}

.page-content h2 {
  margin-top: 2rem;
  margin-bottom: 0.25rem;
  color: var(--c-light);
}

.page-content h2 + hr {
  margin-bottom: 1rem;
}

.page-content h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--c-primary-light);
}

.page-content p {
  margin-bottom: 1rem;
}

.page-content ul,
.page-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.page-content li {
  margin-bottom: 0.4rem;
}

.page-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.page-content th {
  background: var(--c-primary);
  color: var(--c-light);
  font-weight: 700;
  padding: 0.6rem 0.75rem;
  text-align: left;
}

.page-content td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-text-muted);
}

.page-content tr:hover td { background: rgba(255,77,109,0.05); }

.page-content blockquote {
  border-left: 3px solid var(--c-primary);
  padding: 0.5rem 1rem;
  margin: 1rem 0;
  background: var(--c-card-bg);
  color: var(--c-text-muted);
  font-style: italic;
}

.page-content a {
  color: var(--c-primary);
  text-decoration: underline;
  text-decoration-color: rgba(255,77,109,0.4);
}
.page-content a:hover { text-decoration-color: var(--c-primary); }

.page-content time {
  font-weight: 600;
  color: var(--c-primary-light);
}

/* =====================
   首页：cards article
   ===================== */
.cards-section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

.section-title {
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  color: var(--c-light);
  margin-bottom: 0.25rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

/* 卡片：玻璃拟态，0圆角 */
.card {
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-border);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color var(--transition), background var(--transition);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.card:hover {
  border-color: var(--c-primary);
  background: rgba(255,77,109,0.07);
}

.card-tag {
  display: inline-block;
  background: var(--c-primary);
  color: var(--c-light);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.5rem;
  align-self: flex-start;
}

.card-tag--rank { background: #FF8C00; }

.card h3 {
  font-size: 0.98rem;
  margin: 0;
}

.card h3 a {
  color: var(--c-light);
  transition: color var(--transition);
}
.card h3 a:hover { color: var(--c-primary); }

.card-desc {
  font-size: 0.84rem;
  color: var(--c-text-muted);
  line-height: 1.5;
  margin-bottom: 0;
}

.card-date {
  font-size: 0.78rem;
  color: var(--c-muted);
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--c-border);
}

/* rank cards in aside */
.card--rank {
  padding: 0.9rem;
}

/* =====================
   首页：content-section--main
   ===================== */
.content-section--main .content-body {
  display: flex;
  flex-direction: column;
}

/* =====================
   Footer
   ===================== */
.site-footer {
  background: var(--c-dark-3);
  border-top: 2px solid var(--c-primary);
  padding: 1.5rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.footer-brand {
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--c-light);
  margin-bottom: 0;
}

.footer-note {
  font-size: 0.78rem;
  color: var(--c-muted);
  line-height: 1.5;
}

.footer-note a {
  color: var(--c-primary);
}

/* =====================
   동작 애니메이션 (stagger + parallax)
   ===================== */
@media (prefers-reduced-motion: no-preference) {
  .cards-grid .card {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.4s ease forwards;
  }

  .cards-grid .card:nth-child(1) { animation-delay: 0.05s; }
  .cards-grid .card:nth-child(2) { animation-delay: 0.1s; }
  .cards-grid .card:nth-child(3) { animation-delay: 0.15s; }
  .cards-grid .card:nth-child(4) { animation-delay: 0.2s; }
  .cards-grid .card:nth-child(5) { animation-delay: 0.25s; }
  .cards-grid .card:nth-child(6) { animation-delay: 0.3s; }

  .aside-block {
    opacity: 0;
    transform: translateY(12px);
    animation: fadeInUp 0.35s ease forwards;
  }
  .aside-block:nth-child(1) { animation-delay: 0.08s; }
  .aside-block:nth-child(2) { animation-delay: 0.16s; }
  .aside-block:nth-child(3) { animation-delay: 0.24s; }

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

  .page-hero {
    animation: heroIn 0.4s ease forwards;
  }
  @keyframes heroIn {
    from { opacity: 0.7; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }
}

/* =====================
   响应式：平板
   ===================== */
@media (max-width: 900px) {
  .content-section {
    flex-direction: column;
    padding: 1.5rem 1rem;
  }
  .content-aside {
    flex: none;
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
  }
  .aside-block {
    flex: 1 1 200px;
  }
  .brand-slogan { display: none !important; }
}

/* =====================
   响应式：移动端 ≤600px
   ===================== */
@media (max-width: 600px) {
  :root {
    --header-h: auto;
  }

  .header-brand {
    padding: 0.6rem 1rem;
    flex-wrap: wrap;
  }

  .brand-name { font-size: 1rem; }

  .nav-toggle {
    display: flex;
  }

  .nav-details:not([open]) .nav-menu {
    display: none;
  }

  .nav-menu {
    flex-direction: column;
    padding: 0;
  }

  .nav-menu li a {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--c-border);
    font-size: 0.9rem;
    min-height: 44px;
  }

  .page-home .hero-section {
    min-height: auto;
    padding: 2rem 1rem 0;
  }

  .hero-text { padding: 0; }
  .hero-text h1 { font-size: 1.6rem; }
  .hero-figure { max-width: 100%; }

  .content-section {
    flex-direction: column;
    padding: 1rem;
  }

  .content-aside {
    flex-direction: column;
  }

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

  .page-hero {
    padding: 1.5rem 1rem 0;
  }

  .page-hero-inner {
    padding-bottom: 1rem;
  }

  .section-title { font-size: 1.2rem; }
  .cards-section { padding: 1.5rem 1rem 2rem; }

  .ranking-podium-fig { min-height: 70px; }
  .podium-bar--1 { height: 55px; }
  .podium-bar--2 { height: 40px; }
  .podium-bar--3 { height: 30px; }

  h1 { font-size: 1.55rem; }
  h2 { font-size: 1.25rem; }

  .page-content table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* =====================
   유틸리티
   ===================== */
.review-hero-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* 스크롤바 스타일 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--c-dark); }
::-webkit-scrollbar-thumb { background: var(--c-primary); }

/* 선택 색상 */
::selection { background: var(--c-primary); color: var(--c-light); }