/* ============================================================
   下载页 · 阿拉德风（仿 url.arad.ink/dnf）
   米色暖底 + 紫色品牌色 + Space Grotesk / Inter / JetBrains Mono
   内容由 /api/content 的 downloadPageArad 驱动（见 download-arad.js）
   ============================================================ */
:root {
  --bg: #FAF6F0;
  --bg-card: #FFFFFF;
  --text: #1A1A2E;
  --text-soft: #4A4A5E;
  --text-mute: #8A8A9E;
  --text-dim: #B0B0BE;
  --line: #EAE4D8;
  --line-soft: #F2EDE2;
  --line-strong: #D8D0C0;

  /* 按钮主品牌色 - 紫色 */
  --brand: #4F46E5;
  --brand-soft: #EEF2FF;
  --brand-deep: #4338CA;

  /* 状态语义色 */
  --ok: #10B981;
  --ok-soft: #D1FAE5;
  --hot: #EF4444;
  --hot-soft: #FEE2E2;

  /* Tag 配色：4 色循环（白字） */
  --tag-1: #3B82F6;
  --tag-2: #10B981;
  --tag-3: #F59E0B;
  --tag-4: #EC4899;

  --ease-quiet: cubic-bezier(.22,1,.36,1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 装饰背景：暖色 + 中性色光晕 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(245,158,11,0.06) 0%, transparent 30%),
    radial-gradient(circle at 88% 12%, rgba(14,165,233,0.05) 0%, transparent 32%),
    radial-gradient(circle at 78% 82%, rgba(236,72,153,0.05) 0%, transparent 30%),
    radial-gradient(circle at 18% 78%, rgba(16,185,129,0.05) 0%, transparent 30%);
  pointer-events: none;
  z-index: 0;
}

main, header, footer { position: relative; z-index: 1; }

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: rgba(250,246,240,0.88);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
}
.nav__logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--text);
  white-space: nowrap;
}
.nav__logo-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--brand);
  flex-shrink: 0;
}
.nav__logo b { color: var(--brand); font-weight: 700; }
.nav__logo span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--text-mute);
  text-transform: uppercase;
  font-weight: 500;
  margin-left: 0.2rem;
}
.nav__links {
  display: flex;
  gap: 1.8rem;
  list-style: none;
  flex-wrap: wrap;
}
.nav__links a {
  color: var(--text-soft);
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 500;
  transition: color 300ms var(--ease-quiet);
}
.nav__links a:hover { color: var(--brand); }
@media (max-width: 820px) {
  .nav__links { display: none; }
  .nav { padding: 0.7rem 1.2rem; }
}

/* ===== Hero ===== */
.hero {
  padding: 1.8rem 2rem 1.2rem;
  max-width: 1300px;
  margin: 0 auto;
  position: relative;
}
.hero__top {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.hero__eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.hero__eyebrow em {
  font-style: normal;
  color: var(--brand);
  font-weight: 500;
}
.hero__pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.7rem;
  background: var(--ok-soft);
  color: var(--ok);
  border-radius: 100px;
}
.hero__pill::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ok);
  animation: statusBreathe 3s ease-in-out infinite;
}
.hero__pill:empty { display: none; }

@keyframes statusBreathe {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(0.8); }
}

.hero__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4.6vw, 3.5rem);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.028em;
  margin-bottom: 0.7rem;
  color: var(--text);
}
.hero__title em {
  font-style: normal;
  background: linear-gradient(135deg, #F59E0B 0%, #EF4444 50%, #EC4899 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__sub {
  font-size: 0.96rem;
  line-height: 1.6;
  color: var(--text-soft);
  max-width: 620px;
}

/* ===== Section 通用 ===== */
.section {
  padding: 2.2rem 2rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
}
.section--versions { padding-top: 0.5rem; }
.section__head {
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 1rem;
}
.section__eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 0.45rem;
}
.section__eyebrow em { font-style: normal; color: var(--brand); font-weight: 600; }
.section__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.022em;
  color: var(--text);
}
.section__title em { font-style: normal; color: var(--brand); }
.section__lead {
  font-size: 0.88rem;
  color: var(--text-mute);
  max-width: 360px;
  line-height: 1.55;
}

/* ===== 版本列表三栏布局 ===== */
.versions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}
.versions-col__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--text);
  letter-spacing: -0.018em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.versions-col__title span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-mute);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* 单张卡片 */
.version {
  display: flex;
  gap: 0.9rem;
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  position: relative;
  overflow: hidden;
  margin-bottom: 0.8rem;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 550ms var(--ease-quiet), transform 550ms var(--ease-quiet), box-shadow 350ms var(--ease-quiet), border-color 350ms var(--ease-quiet);
}
.version.is-in { opacity: 1; transform: translateY(0); }
.versions-col .version:nth-child(2) { transition-delay: 80ms; }
.versions-col .version:nth-child(3) { transition-delay: 160ms; }
.versions-col .version:nth-child(4) { transition-delay: 240ms; }
.versions-col .version.is-in:hover { transition-delay: 0ms !important; }

/* 左侧色条 */
.version::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--vc, #F59E0B);
  transform: scaleY(0.4);
  opacity: 0.4;
  transition: transform 400ms var(--ease-quiet), opacity 400ms var(--ease-quiet);
}
.version:hover {
  box-shadow: 0 14px 32px -10px rgba(0,0,0,0.14), 0 3px 8px -2px rgba(0,0,0,0.04);
  border-color: var(--vc, #F59E0B);
  transform: translateY(-3px);
}
.version:hover::before { transform: scaleY(1); opacity: 1; }

.version__cover {
  width: 88px;
  height: 110px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
  background: #eee;
}
.version__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s var(--ease-quiet);
}
.version:hover .version__cover img { transform: scale(1.05); }
.version__lv {
  position: absolute;
  top: 5px;
  left: 5px;
  background: var(--vc, #F59E0B);
  color: #fff;
  font-size: 0.62rem;
  font-weight: 700;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.version__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}
.version__row1 {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.2rem;
  gap: 0.5rem;
}
.version__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.018em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.version__score {
  color: var(--hot);
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  flex-shrink: 0;
}
.version__players {
  font-size: 0.7rem;
  color: var(--text-mute);
  margin-bottom: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.version__players b { color: var(--ok); font-weight: 600; }
.version__players .arrow { color: var(--ok); font-size: 0.8rem; }

/* 服务器状态标签 */
.status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.18rem 0.5rem;
  border-radius: 100px;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  white-space: nowrap;
  line-height: 1;
}
.status::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  animation: statusBreathe 3s ease-in-out infinite;
}
.status--stable::before { animation-delay: 0s; }
.status--hot::before { animation-delay: 0.5s; }
.status--rec::before { animation-delay: 1s; }
.status--stable { background: var(--ok-soft); color: var(--ok); }
.status--hot { background: var(--hot-soft); color: var(--hot); }
.status--rec { background: var(--brand-soft); color: var(--brand); }

.version__desc {
  font-size: 0.74rem;
  color: var(--text-soft);
  line-height: 1.5;
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.version__tags {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
  margin-bottom: 0.6rem;
}
.tag {
  font-size: 0.7rem;
  font-weight: 600;
  color: #FFFFFF;
  padding: 0.10rem 0.45rem;
  border-radius: 4px;
  letter-spacing: -0.005em;
  white-space: nowrap;
  line-height: 1.4;
}
.version__tags .tag:nth-child(1) { background: var(--tag-1); }
.version__tags .tag:nth-child(2) { background: var(--tag-2); }
.version__tags .tag:nth-child(3) { background: var(--tag-3); }
.version__tags .tag:nth-child(4) { background: var(--tag-4); }
.version__tags .tag:nth-child(5) { background: var(--tag-1); }
.version__tags .tag:nth-child(6) { background: var(--tag-2); }

.version__actions {
  display: flex;
  gap: 0.4rem;
  margin-top: auto;
}
.btn-dl, .btn-qq {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  padding: 0.45rem 0.5rem;
  border-radius: 6px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  transition: transform 300ms var(--ease-quiet), filter 300ms var(--ease-quiet), background 300ms var(--ease-quiet), color 300ms var(--ease-quiet);
  white-space: nowrap;
  flex: 1;
}
.btn-dl svg, .btn-qq svg { width: 12px; height: 12px; flex-shrink: 0; }
.btn-dl { background: var(--brand); color: #FFFFFF; }
.btn-dl:hover { transform: translateY(-2px); filter: brightness(1.1); }
.btn-qq { background: var(--brand-soft); color: var(--brand); }
.btn-qq:hover { transform: translateY(-2px); background: var(--brand); color: #FFFFFF; }

/* 占位卡片 */
.version--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 130px;
  border: 1px dashed var(--line-strong);
  background: transparent;
  margin-bottom: 0.8rem;
  border-radius: 14px;
  opacity: 1;
  transform: none;
}
.version--placeholder:hover {
  transform: none !important;
  box-shadow: none !important;
  border-color: var(--line-strong) !important;
}
.version--placeholder::before { display: none; }
.placeholder-inner { text-align: center; color: var(--text-dim); }
.placeholder-inner span {
  font-size: 1.6rem;
  font-weight: 300;
  display: block;
  margin-bottom: 0.3rem;
  color: var(--line-strong);
}
.placeholder-inner p {
  font-size: 0.68rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-mute);
}

@media (max-width: 1080px) { .versions-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 720px) {
  .versions-grid { grid-template-columns: 1fr; }
  .version { gap: 0.7rem; padding: 0.8rem; }
  .version__cover { width: 76px; height: 95px; }
}

/* ===== 系统需求 ===== */
.specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}
.spec {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  padding: 1.6rem;
}
.spec__label {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.22rem 0.6rem;
  background: var(--brand-soft);
  color: var(--brand);
  border-radius: 100px;
  margin-bottom: 0.7rem;
}
.spec--rec .spec__label { background: var(--ok-soft); color: var(--ok); }
.spec__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
  letter-spacing: -0.018em;
}
.spec__list { list-style: none; }
.spec__list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 0.9rem;
  align-items: baseline;
}
.spec__list li:last-child { border-bottom: none; padding-bottom: 0; }
.spec__list li:first-child { padding-top: 0; }
.spec__key {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.spec__val { color: var(--text); font-size: 0.88rem; font-weight: 500; }
@media (max-width: 820px) { .specs { grid-template-columns: 1fr; } }

/* ===== FAQ ===== */
.faq__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
  list-style: none;
}
.faq__item {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  padding: 1.3rem 1.4rem;
  transition: transform 300ms var(--ease-quiet), border-color 300ms var(--ease-quiet);
}
.faq__item:hover { transform: translateY(-2px); border-color: var(--brand); }
.faq__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--brand);
  margin-bottom: 0.4rem;
  display: block;
}
.faq__q {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.45rem;
  letter-spacing: -0.012em;
  line-height: 1.35;
}
.faq__a { font-size: 0.85rem; color: var(--text-soft); line-height: 1.6; }
@media (max-width: 820px) { .faq__list { grid-template-columns: 1fr; } }

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 2rem 1.5rem;
  max-width: 1300px;
  margin: 2rem auto 0;
}
.footer__top {
  display: flex;
  flex-wrap: wrap;
  gap: 2.2rem;
  margin-bottom: 2rem;
}
.footer__top > div:first-child { flex: 1 1 260px; }
.footer__cols {
  flex: 3 1 560px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 2.2rem;
}
.footer__brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
.footer__brand em { font-style: normal; color: var(--brand); }
.footer__brand-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--brand);
  flex-shrink: 0;
}
.footer__tagline {
  font-size: 0.85rem;
  color: var(--text-mute);
  line-height: 1.65;
  max-width: 340px;
}
.footer__col h5 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 0.9rem;
  font-weight: 700;
}
.footer__col ul { list-style: none; }
.footer__col li { margin-bottom: 0.5rem; }
.footer__col a {
  color: var(--text-soft);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 300ms var(--ease-quiet);
}
.footer__col a:hover { color: var(--brand); }
.footer__bottom {
  border-top: 1px solid var(--line-soft);
  padding-top: 1.2rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1.2rem;
}
.footer__copy {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--text-mute);
  line-height: 1.7;
  white-space: pre-line;
}
.footer__disclaim {
  font-size: 0.76rem;
  color: var(--text-mute);
  max-width: 480px;
  line-height: 1.6;
  text-align: right;
}
@media (max-width: 820px) {
  .footer__bottom { flex-direction: column; }
  .footer__disclaim { text-align: left; }
  .footer { padding: 2rem 1.5rem 1.2rem; }
}

/* ===== 入场动画 ===== */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms var(--ease-quiet), transform 700ms var(--ease-quiet);
  will-change: transform, opacity;
}
.fade-up.is-in { opacity: 1; transform: none; }

.hero__top, .hero__title, .hero__sub {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 650ms var(--ease-quiet), transform 650ms var(--ease-quiet);
}
.hero__top.is-in { opacity: 1; transform: none; transition-delay: 0ms; }
.hero__title.is-in { opacity: 1; transform: none; transition-delay: 100ms; }
.hero__sub.is-in { opacity: 1; transform: none; transition-delay: 200ms; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; }
  .fade-up, .hero__top, .hero__title, .hero__sub, .version {
    opacity: 1 !important;
    transform: none !important;
  }
}

::selection { background: var(--brand); color: #FFFFFF; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--brand); }

/* ===== Toast ===== */
.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translate(-50%, 16px);
  background: var(--text);
  color: #fff;
  font-size: 0.85rem;
  padding: 0.6rem 1.2rem;
  border-radius: 100px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease-quiet), transform .3s var(--ease-quiet);
  z-index: 1000;
  max-width: 86vw;
  text-align: center;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ===== 版本卡片结构统一：三列等高 / 描述固定两行 / 按钮贴底 ===== */
.versions-grid { align-items: stretch; }
.versions-col { display: flex; flex-direction: column; }
.versions-col .version { flex: 1 1 auto; }

/* 描述固定为 2 行高度：文案短的不塌陷，长的截断 */
.version__desc {
  -webkit-line-clamp: 2;
  min-height: 3em;              /* 2 行 × line-height 1.5 */
}

/* 标签区至少保留一行高度，避免无标签时整体上移 */
.version__tags { min-height: 1.2rem; align-content: flex-start; }

/* 按钮永远贴在卡片底部，三列对齐 */
.version__actions { margin-top: auto; }