/* 首页（WEB-01）专用样式 */

/* ---------- 顶部品牌区 ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 48px 0 112px;
  color: #fff;
  background: linear-gradient(160deg, var(--primary-bright) 0%, var(--primary) 48%, var(--primary-dark) 100%);
}

.hero-deco {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero-deco-ring {
  right: -120px;
  top: -140px;
  width: 460px;
  height: 460px;
  background: rgba(255, 255, 255, 0.07);
}

.hero-deco-glow {
  right: 6%;
  top: 60px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.42) 0%, rgba(var(--accent-rgb), 0.14) 42%, rgba(var(--accent-rgb), 0) 70%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-org {
  display: inline-block;
  padding: 6px 18px;
  border-radius: 999px;
  font-size: var(--fs-small);
  color: var(--accent-pale);
  background: rgba(255, 255, 255, 0.13);
}

.hero-name {
  margin-top: 20px;
  font-size: 44px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 8px;
}

.hero-full {
  margin-top: 8px;
  font-size: 19px;
  color: rgba(255, 255, 255, 0.9);
}

.hero-intro {
  margin-top: 20px;
  max-width: 560px;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

@media (min-width: 900px) {
  .hero {
    padding: 44px 0 120px;
  }

  .hero-name {
    font-size: 64px;
    letter-spacing: 12px;
  }

  .hero-full {
    font-size: 22px;
  }
}

/* ---------- 按问题找知识 ---------- */
.entry-panel {
  position: relative;
  z-index: 2;
  margin-top: 28px;
  padding: 26px 20px 24px;
  border-radius: var(--radius-l);
}

@media (min-width: 900px) {
  .entry-panel {
    margin-top: 36px;
    padding: 36px 36px 36px;
  }
}

.entry-ask {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
}

@media (min-width: 900px) {
  .entry-ask {
    font-size: 26px;
  }
}

.entry-note {
  margin-top: 4px;
  font-size: var(--fs-small);
  color: var(--text-3);
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 20px;
}

@media (min-width: 900px) {
  .entry-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 24px;
  }
}

/* 同一行的入口卡片等高 */
.entry-grid > li {
  display: flex;
}

.entry-grid > li > .entry {
  flex: 1;
}

.entry {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 16px 12px 14px;
  border-radius: var(--radius-m);
  background: linear-gradient(150deg, var(--primary-wash) 0%, var(--primary-light) 100%);
  transition: transform 0.18s, box-shadow 0.18s, background 0.18s;
}

.entry:hover {
  transform: translateY(-3px);
  background: var(--primary-wash-3);
  box-shadow: var(--shadow-hover);
}

@media (min-width: 900px) {
  .entry {
    flex-direction: row;
    align-items: center;
    gap: 18px;
    padding: 22px 22px;
  }
}

.entry-icon-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.12);
}

.entry-icon {
  width: 34px;
  height: 34px;
}

.entry-title {
  margin-top: 12px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
}

.entry-sub {
  margin-top: 2px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-3);
}

@media (min-width: 900px) {
  .entry-title {
    margin-top: 0;
    font-size: 19px;
  }

  .entry-sub {
    font-size: var(--fs-small);
  }
}

/* 一期暂未开放的入口：保留位置，不可点击 */
.entry.is-off {
  background: var(--muted-bg);
  cursor: default;
}

.entry.is-off:hover {
  transform: none;
  box-shadow: none;
  background: var(--muted-bg);
}

.entry.is-off .entry-icon-wrap {
  box-shadow: none;
}

.entry.is-off .entry-title {
  color: var(--text-3);
}

.entry-off-tag {
  margin-top: 8px;
}

/* ---------- 项目简介 ---------- */
.about-card {
  display: grid;
  gap: 18px;
  padding: 26px 22px;
}

@media (min-width: 900px) {
  .about-card {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 40px;
    padding: 32px 36px;
  }
}

.about-card p {
  color: var(--text-2);
  line-height: 1.9;
}

.about-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

/* ---------- 课堂摘要 ---------- */
.lesson-list {
  display: grid;
  gap: 14px;
}

@media (min-width: 900px) {
  .lesson-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

.lesson-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  transition: transform 0.18s, box-shadow 0.18s;
}

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

.lesson-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.lesson-card-title {
  font-size: var(--fs-title);
  font-weight: 600;
  line-height: 1.5;
}

.lesson-card-intro {
  font-size: var(--fs-small);
  color: var(--text-2);
}

.lesson-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  margin-top: 4px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-small);
  color: var(--text-3);
}

/* ---------- FAQ 与公益支持入口 ---------- */
.cta-grid {
  display: grid;
  gap: 16px;
}

@media (min-width: 900px) {
  .cta-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

.cta-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 24px;
  border-radius: var(--radius-m);
  transition: transform 0.18s, box-shadow 0.18s;
}

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

.cta-card-faq {
  background: #fff;
  box-shadow: var(--shadow-card);
}

.cta-card-support {
  background: linear-gradient(135deg, var(--accent-wash) 0%, var(--accent-light) 100%);
  border: 2px solid rgba(var(--accent-rgb), 0.35);
}

.cta-icon-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--primary-light);
}

.cta-card-support .cta-icon-wrap {
  background: #fff;
}

.cta-icon {
  width: 36px;
  height: 36px;
}

.cta-main {
  flex: 1;
  min-width: 0;
}

.cta-title {
  font-size: 20px;
  font-weight: 600;
}

.cta-card-support .cta-title {
  color: var(--accent-dark);
}

.cta-sub {
  margin-top: 2px;
  font-size: var(--fs-small);
  color: var(--text-3);
}

.cta-card-support .cta-sub {
  color: var(--accent-text);
}

.cta-go {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 20px;
  border-radius: 999px;
  font-size: var(--fs-small);
  color: #fff;
  background: var(--primary);
}

.cta-card-support .cta-go {
  background: var(--accent-mid);
}

/* 行内文字块 */
.entry-title,
.entry-sub,
.cta-title,
.cta-sub {
  display: block;
}

.about-text {
  margin-top: 14px;
}

.footer-contact a {
  text-decoration: underline;
}

/* ---------- 导航下方：轮播 + 新闻标签 ---------- */
.news-hero {
  position: relative;
  z-index: 2;
  margin-top: 24px;
}

/* 版本一：叠在顶部品牌区底部 */
body:not(.v2) .news-hero {
  margin-top: -76px;
}

.news-hero-card {
  display: grid;
  gap: 20px;
  padding: 14px;
  border-radius: var(--radius-l);
}

@media (min-width: 900px) {
  body:not(.v2) .news-hero {
    margin-top: -88px;
  }

  .news-hero-card {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 32px;
    padding: 24px;
  }
}

/* 轮播 */
.carousel {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-m);
  background: var(--muted-bg);
}

/* 平板：图片比例放宽 */
@media (min-width: 640px) {
  .carousel {
    aspect-ratio: 16 / 10;
  }
}

/* 桌面：高度跟随右侧新闻列表，图片铺满 */
@media (min-width: 900px) {
  .carousel {
    aspect-ratio: auto;
    min-height: 340px;
  }
}

.carousel-viewport {
  position: absolute;
  inset: 0;
  overflow: hidden;
  touch-action: pan-y;
}

.carousel-track {
  display: flex;
  height: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
  transition: transform 0.5s ease;
}

.carousel-slide {
  flex: 0 0 100%;
  min-width: 0;
  height: 100%;
}

.carousel-slide a {
  position: relative;
  display: block;
  height: 100%;
  color: #fff;
}

.carousel-slide img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.carousel-cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 36px 14px 34px;
  background: linear-gradient(to top, rgba(var(--ink-deep-rgb), 0.78) 0%, rgba(var(--ink-deep-rgb), 0.46) 55%, rgba(var(--ink-deep-rgb), 0) 100%);
}

.carousel-tag {
  font-size: 14px;
}

.carousel-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.35);
}

.carousel-btn {
  position: absolute;
  top: 50%;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-top: -22px;
  padding: 0 0 4px;
  border: 0;
  border-radius: 50%;
  font-size: 30px;
  line-height: 1;
  color: #fff;
  background: rgba(var(--ink-rgb), 0.38);
  cursor: pointer;
  transition: background 0.2s;
}

.carousel-btn:hover,
.carousel-btn:focus-visible {
  background: rgba(var(--ink-rgb), 0.66);
}

.carousel-prev {
  left: 10px;
}

/* 手机：靠左右滑动和圆点切换，不显示箭头 */
@media (max-width: 639px) {
  .carousel-btn {
    display: none;
  }
}

@media (min-width: 640px) {
  .news-tabs {
    gap: 6px;
  }

  .news-tab {
    padding: 0 12px;
  }
}

.carousel-next {
  right: 10px;
}

.carousel-dots {
  position: absolute;
  left: 16px;
  bottom: 10px;
  display: flex;
  gap: 4px;
}

/* 点击区域 ≥ 24px，视觉圆点较小 */
.carousel-dot {
  position: relative;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.carousel-dot::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  margin: -5px 0 0 -5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
  transition: width 0.25s, margin 0.25s, background 0.25s;
}

.carousel-dot[aria-current="true"]::before {
  width: 26px;
  margin-left: -13px;
  background: #fff;
}

@media (min-width: 900px) {
  .carousel-cap {
    padding: 56px 24px 44px;
  }

  .carousel-title {
    font-size: 22px;
  }

  .carousel-dots {
    left: 24px;
    bottom: 14px;
  }
}

/* 新闻标签 */
.news {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.news-tabs {
  display: flex;
  gap: 2px;
  margin: 0 0 4px;
  overflow-x: auto;
  scrollbar-width: none;
}

.news-tabs::-webkit-scrollbar {
  display: none;
}

.news-tab {
  flex: 1 1 0;
  min-width: max-content;
  min-height: var(--tap);
  padding: 0 4px;
  border: 0;
  border-radius: var(--radius-s);
  font: inherit;
  font-size: 16px;
  color: var(--text-2);
  background: transparent;
  cursor: pointer;
  white-space: nowrap;
}

.news-tab:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.news-tab[aria-selected="true"] {
  font-weight: 700;
  color: #fff;
  background: var(--primary);
}

.news-panel {
  display: flex;
  flex: 1;
  flex-direction: column;
}

.news-panel[hidden] {
  display: none;
}

.news-list {
  flex: 1;
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-list li {
  border-bottom: 1px solid var(--line);
}

.news-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 56px;
  padding: 8px 4px;
  color: var(--text);
}

.news-list a:hover .news-title {
  color: var(--primary);
}

.news-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-date {
  flex: none;
  font-size: var(--fs-small);
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}

.news-more {
  align-self: flex-end;
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  padding: 0 4px;
  font-size: var(--fs-small);
  color: var(--primary);
}

.news-more::after {
  content: "›";
  margin-left: 4px;
  font-size: 20px;
}

@media (prefers-reduced-motion: reduce) {
  .carousel-track {
    transition: none;
  }
}