/* 9.1视频免费版站点 - 极简下载着陆页风格 */
:root {
  --bg-page: #f4f5fb;
  --bg-card: #ffffff;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --accent-strong: #1d4ed8;
  --text-main: #0f172a;
  --text-sub: #6b7280;
  --border: #e5e7eb;
  --radius-lg: 20px;
  --radius-md: 12px;
  --shadow-soft: 0 18px 45px rgba(15,23,42,0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background:
    radial-gradient(circle at top, #eef2ff 0, transparent 55%),
    var(--bg-page);
  color: var(--text-main);
  line-height: 1.7;
}

/* 头部 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(248,249,252,0.92);
  border-bottom: 1px solid rgba(226,232,240,0.9);
}
.header-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0.85rem 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}
.logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 12px;
  background: conic-gradient(from 160deg, #2563eb, #22c55e, #f97316, #2563eb);
  box-shadow: 0 10px 25px rgba(37,99,235,0.35);
}
.logo-text-main {
  font-weight: 700;
  font-size: 1.02rem;
}
.logo-text-sub {
  font-size: 0.78rem;
  color: var(--text-sub);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.3rem;
  font-size: 0.88rem;
}
.nav a {
  text-decoration: none;
  color: var(--text-sub);
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  transition: background .18s, color .18s;
}
.nav a:hover,
.nav a.active {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

/* 主区域 */
.main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 1.7rem 1.4rem 2.5rem;
}

/* 首屏：左文案 + 右下载卡片 */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: 1.8rem;
  margin-bottom: 2.4rem;
  align-items: center;
}
.hero-left {
  padding-right: 0.5rem;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.16rem 0.7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.78rem;
  margin-bottom: 0.7rem;
}
.hero-title {
  font-size: clamp(1.7rem, 3vw, 2.1rem);
  font-weight: 750;
  margin-bottom: 0.6rem;
}
.hero-title span {
  color: var(--accent-strong);
}
.hero-sub {
  font-size: 0.95rem;
  color: var(--text-sub);
  max-width: 34rem;
  margin-bottom: 0.8rem;
}
.hero-sub strong {
  color: var(--accent-strong);
  font-weight: 500;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
  margin-top: 0.7rem;
  font-size: 0.82rem;
  color: var(--text-sub);
}
.hero-meta span::before {
  content: "• ";
  color: var(--accent-strong);
}

.hero-download {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  padding: 1.4rem 1.4rem 1.2rem;
}
.hero-tag {
  font-size: 0.78rem;
  color: var(--text-sub);
  margin-bottom: 0.45rem;
}
.hero-version {
  font-size: 1.02rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.hero-desc {
  font-size: 0.86rem;
  color: var(--text-sub);
  margin-bottom: 0.9rem;
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 0.9rem;
}
.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  font-size: 0.9rem;
  text-decoration: none;
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  border: none;
}
.btn-ghost {
  background: #eef2ff;
  color: #1e293b;
  border: 1px solid #e5e7eb;
}
.hero-platforms {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  font-size: 0.78rem;
  color: var(--text-sub);
}

/* 分区标题 */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.1rem;
}
.section-title {
  font-size: 1.08rem;
  font-weight: 600;
}
.section-sub {
  font-size: 0.84rem;
  color: var(--text-sub);
}
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.78rem;
}
.pill {
  padding: 0.18rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--text-sub);
}

/* 功能模块网格 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.3rem;
  margin-bottom: 2.1rem;
}
.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 0.95rem 1rem 0.9rem;
  box-shadow: 0 10px 30px rgba(15,23,42,0.04);
}
.feature-label {
  font-size: 0.78rem;
  color: var(--accent-strong);
  margin-bottom: 0.2rem;
}
.feature-title {
  font-size: 0.98rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.feature-text {
  font-size: 0.86rem;
  color: var(--text-sub);
}

/* 列表页卡片 */
.list-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  display: grid;
  grid-template-columns: 210px minmax(0,1fr);
  gap: 1.1rem;
  padding: 0.9rem;
  margin-bottom: 1.1rem;
}
.list-thumb {
  border-radius: 10px;
  overflow: hidden;
}
.list-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.list-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}
.list-title a {
  color: var(--text-main);
  text-decoration: none;
}
.list-title a:hover {
  color: var(--accent-strong);
}
.list-desc {
  font-size: 0.86rem;
  color: var(--text-sub);
  margin-bottom: 0.4rem;
}
.list-meta {
  font-size: 0.78rem;
  color: var(--text-sub);
}

/* 内容页 */
.article {
  max-width: 800px;
  margin: 0 auto;
}
.article-header {
  margin-bottom: 1.6rem;
}
.article-title {
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  font-weight: 650;
  margin-bottom: 0.4rem;
}
.article-meta {
  font-size: 0.82rem;
  color: var(--text-sub);
}
.article-content p {
  margin-bottom: 1.05rem;
  font-size: 0.95rem;
}
.article-content h2 {
  font-size: 1.06rem;
  margin: 1.7rem 0 0.85rem;
}
.article-content h3 {
  font-size: 0.96rem;
  margin: 1.4rem 0 0.6rem;
}
.article-img {
  width: 100%;
  border-radius: var(--radius-md);
  margin: 1.2rem 0 1.5rem;
  border: 1px solid var(--border);
}
.article-nav {
  margin-top: 2rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  font-size: 0.84rem;
}
.article-nav a {
  color: var(--accent-strong);
  text-decoration: none;
}
.article-nav a:hover {
  text-decoration: underline;
}

/* 页脚 */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.7rem 1.4rem 2.1rem;
  font-size: 0.8rem;
  color: var(--text-sub);
  text-align: center;
}
.site-footer a {
  color: var(--text-sub);
  text-decoration: none;
}
.site-footer a:hover {
  color: var(--accent-strong);
}

/* 响应式 */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: minmax(0,1fr);
  }
  .hero-left {
    padding-right: 0;
  }
}
@media (max-width: 720px) {
  .main {
    padding: 1.4rem 1rem 2.3rem;
  }
  .header-inner {
    padding-inline: 1rem;
  }
  .list-card {
    grid-template-columns: minmax(0,1fr);
  }
}

/* 首页视频卡片 */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.3rem;
  margin-bottom: 2.1rem;
}
.video-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: 0 12px 35px rgba(15,23,42,0.06);
  overflow: hidden;
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 45px rgba(15,23,42,0.12);
  border-color: #bfdbfe;
}
.video-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.video-play {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 52px;
  height: 52px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 20%, #93c5fd, #2563eb);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 22px rgba(37,99,235,0.45);
}
.video-play::after {
  content: "";
  margin-left: 3px;
  border: 11px solid transparent;
  border-left-color: #ffffff;
  border-left-width: 17px;
}
.video-duration {
  position: absolute;
  right: 8px;
  bottom: 8px;
  font-size: 0.75rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: rgba(15,23,42,0.75);
  color: #f9fafb;
}
.video-body {
  padding: 0.8rem 0.95rem 0.9rem;
}
.video-title {
  font-size: 0.96rem;
  margin-bottom: 0.35rem;
  line-height: 1.5;
}
.video-title a {
  color: var(--text-main);
  text-decoration: none;
}
.video-title a:hover {
  color: var(--accent-strong);
}
.video-meta {
  font-size: 0.78rem;
  color: var(--text-sub);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.video-meta span:first-child::before {
  content: "▶ ";
  font-size: 0.7rem;
  opacity: .8;
}

/* 9.1视频免费版站点 - 极简下载着陆页风格 */
:root {
  --bg-page: #f4f5fb;
  --bg-card: #ffffff;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --accent-strong: #1d4ed8;
  --text-main: #0f172a;
  --text-sub: #6b7280;
  --border: #e5e7eb;
  --radius-lg: 20px;
  --radius-md: 12px;
  --shadow-soft: 0 18px 45px rgba(15,23,42,0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background:
    radial-gradient(circle at top, #eef2ff 0, transparent 55%),
    var(--bg-page);
  color: var(--text-main);
  line-height: 1.7;
}

/* 头部 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(248,249,252,0.92);
  border-bottom: 1px solid rgba(226,232,240,0.9);
}
.header-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0.85rem 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}
.logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 12px;
  background: conic-gradient(from 160deg, #2563eb, #22c55e, #f97316, #2563eb);
  box-shadow: 0 10px 25px rgba(37,99,235,0.35);
}
.logo-text-main {
  font-weight: 700;
  font-size: 1.02rem;
}
.logo-text-sub {
  font-size: 0.78rem;
  color: var(--text-sub);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.3rem;
  font-size: 0.88rem;
}
.nav a {
  text-decoration: none;
  color: var(--text-sub);
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  transition: background .18s, color .18s;
}
.nav a:hover,
.nav a.active {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

/* 主区域 */
.main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 1.7rem 1.4rem 2.5rem;
}

/* 首屏：左文案 + 右下载卡片 */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: 1.8rem;
  margin-bottom: 2.4rem;
  align-items: center;
}
.hero-left {
  padding-right: 0.5rem;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.16rem 0.7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.78rem;
  margin-bottom: 0.7rem;
}
.hero-title {
  font-size: clamp(1.7rem, 3vw, 2.1rem);
  font-weight: 750;
  margin-bottom: 0.6rem;
}
.hero-title span {
  color: var(--accent-strong);
}
.hero-sub {
  font-size: 0.95rem;
  color: var(--text-sub);
  max-width: 34rem;
  margin-bottom: 0.8rem;
}
.hero-sub strong {
  color: var(--accent-strong);
  font-weight: 500;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
  margin-top: 0.7rem;
  font-size: 0.82rem;
  color: var(--text-sub);
}
.hero-meta span::before {
  content: "• ";
  color: var(--accent-strong);
}

.hero-download {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  padding: 1.4rem 1.4rem 1.2rem;
}
.hero-tag {
  font-size: 0.78rem;
  color: var(--text-sub);
  margin-bottom: 0.45rem;
}
.hero-version {
  font-size: 1.02rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.hero-desc {
  font-size: 0.86rem;
  color: var(--text-sub);
  margin-bottom: 0.9rem;
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 0.9rem;
}
.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  font-size: 0.9rem;
  text-decoration: none;
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  border: none;
}
.btn-ghost {
  background: #eef2ff;
  color: #1e293b;
  border: 1px solid #e5e7eb;
}
.hero-platforms {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  font-size: 0.78rem;
  color: var(--text-sub);
}

/* 分区标题 */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.1rem;
}
.section-title {
  font-size: 1.08rem;
  font-weight: 600;
}
.section-sub {
  font-size: 0.84rem;
  color: var(--text-sub);
}
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.78rem;
}
.pill {
  padding: 0.18rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--text-sub);
}

/* 功能模块网格 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.3rem;
  margin-bottom: 2.1rem;
}
.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 0.95rem 1rem 0.9rem;
  box-shadow: 0 10px 30px rgba(15,23,42,0.04);
}
.feature-label {
  font-size: 0.78rem;
  color: var(--accent-strong);
  margin-bottom: 0.2rem;
}
.feature-title {
  font-size: 0.98rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.feature-text {
  font-size: 0.86rem;
  color: var(--text-sub);
}

/* 列表页卡片 */
.list-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  display: grid;
  grid-template-columns: 210px minmax(0,1fr);
  gap: 1.1rem;
  padding: 0.9rem;
  margin-bottom: 1.1rem;
}
.list-thumb {
  border-radius: 10px;
  overflow: hidden;
}
.list-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.list-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}
.list-title a {
  color: var(--text-main);
  text-decoration: none;
}
.list-title a:hover {
  color: var(--accent-strong);
}
.list-desc {
  font-size: 0.86rem;
  color: var(--text-sub);
  margin-bottom: 0.4rem;
}
.list-meta {
  font-size: 0.78rem;
  color: var(--text-sub);
}

/* 内容页 */
.article {
  max-width: 800px;
  margin: 0 auto;
}
.article-header {
  margin-bottom: 1.6rem;
}
.article-title {
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  font-weight: 650;
  margin-bottom: 0.4rem;
}
.article-meta {
  font-size: 0.82rem;
  color: var(--text-sub);
}
.article-content p {
  margin-bottom: 1.05rem;
  font-size: 0.95rem;
}
.article-content h2 {
  font-size: 1.06rem;
  margin: 1.7rem 0 0.85rem;
}
.article-content h3 {
  font-size: 0.96rem;
  margin: 1.4rem 0 0.6rem;
}
.article-img {
  width: 100%;
  border-radius: var(--radius-md);
  margin: 1.2rem 0 1.5rem;
  border: 1px solid var(--border);
}
.article-nav {
  margin-top: 2rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  font-size: 0.84rem;
}
.article-nav a {
  color: var(--accent-strong);
  text-decoration: none;
}
.article-nav a:hover {
  text-decoration: underline;
}

/* 页脚 */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.7rem 1.4rem 2.1rem;
  font-size: 0.8rem;
  color: var(--text-sub);
  text-align: center;
}
.site-footer a {
  color: var(--text-sub);
  text-decoration: none;
}
.site-footer a:hover {
  color: var(--accent-strong);
}

/* 响应式 */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: minmax(0,1fr);
  }
  .hero-left {
    padding-right: 0;
  }
}
@media (max-width: 720px) {
  .main {
    padding: 1.4rem 1rem 2.3rem;
  }
  .header-inner {
    padding-inline: 1rem;
  }
  .list-card {
    grid-template-columns: minmax(0,1fr);
  }
}