/* ============================================================
   抖研AI PPT - 首页 / 模板中心 / 素材库 / 设置
   ============================================================ */

/* ---------- 首页 Hero ---------- */
.hero {
  background:
    radial-gradient(720px 300px at 12% -10%, rgba(0, 113, 227, 0.06), transparent 60%),
    radial-gradient(600px 280px at 88% -14%, rgba(58, 81, 153, 0.05), transparent 60%),
    radial-gradient(500px 240px at 55% 116%, rgba(48, 176, 199, 0.05), transparent 60%);
  padding: 52px 0 8px;
}
.hero-title {
  text-align: center;
  font-size: 42px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.22;
}
.hero-title em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 7px;
  color: var(--text-2);
  margin-top: 14px;
  font-size: 15px;
}
.hero-sub .dot { margin: 0 3px; color: var(--line-strong); }
.hero-sub .ui-ico { color: var(--text-3); }

/* ---------- 生成面板 ---------- */
.gen-panel {
  max-width: 860px;
  margin: 30px auto 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}
.gen-panel:focus-within { box-shadow: var(--shadow-lg); }
.gen-topic {
  padding: 24px 26px 0;
  position: relative;
}
.gen-topic textarea {
  width: 100%;
  border: none;
  outline: none;
  resize: none;
  font-size: 15.5px;
  font-family: var(--font);
  line-height: 1.65;
  min-height: 74px;
  color: var(--text);
}
.gen-topic textarea::placeholder { color: var(--text-3); }
.topic-count { position: absolute; right: 28px; bottom: 4px; font-size: 11.5px; color: var(--text-3); font-variant-numeric: tabular-nums; }

.gen-samples {
  padding: 8px 26px 2px;
  display: flex; flex-wrap: wrap; gap: 8px;
  align-items: center;
}
.gen-samples .sample-label { font-size: 12px; color: var(--text-3); }
.sample-chip {
  font-size: 12px;
  color: var(--text-2);
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 4px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
}
.sample-chip:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }

.gen-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  padding: 18px 26px;
  align-items: center;
}
.gen-opt { display: flex; align-items: center; gap: 9px; }
.gen-opt .opt-label { font-size: 13px; color: var(--text-2); white-space: nowrap; }
.gen-opt .select { width: auto; padding: 6px 28px 6px 11px; font-size: 12.5px; border-radius: 8px; }

.gen-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 26px 22px;
  border-top: 1px solid var(--bg-deep);
  gap: 14px;
  flex-wrap: wrap;
}
.gen-uploads { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; flex: 1; }
.upload-chip {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 5px 10px;
  font-size: 12px;
  max-width: 240px;
}
.upload-chip > span:first-child { display: inline-flex; align-items: center; color: var(--text-3); }
.upload-chip .chip-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 130px; }
.upload-chip .chip-status { font-size: 10.5px; }
.upload-chip .chip-status.ok { color: var(--success); }
.upload-chip .chip-status.err { color: var(--danger); cursor: help; }
.upload-chip .chip-status.parsing { color: var(--warn); }
.upload-chip .chip-del { display: inline-flex; cursor: pointer; color: var(--text-3); padding: 0 1px; transition: var(--transition); }
.upload-chip .chip-del:hover { color: var(--danger); }

/* ---------- 竞赛类型选择 ---------- */
.comp-types {
  max-width: 980px;
  margin: 26px auto 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
.comp-type {
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: 14px;
  padding: 16px 10px 13px;
  /* 图标在上、文字在下的居中布局 */
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}
.comp-type:hover { border-color: var(--line-strong); transform: translateY(-2px); box-shadow: var(--shadow); }
.comp-type.active {
  border-color: var(--primary);
  box-shadow: inset 0 0 0 .5px var(--primary);   /* 与 1.5px 边框合成 2px 主色描边 */
  background: var(--primary-soft);
}
.comp-type .ct-emoji {
  display: flex; align-items: center; justify-content: center;
  height: 24px;
  color: var(--text-2);
  transition: var(--transition);
}
.comp-type.active .ct-emoji { color: var(--primary); }
.comp-type .ct-name { font-size: 13px; font-weight: 600; margin-top: 8px; letter-spacing: -0.01em; }
.comp-type.active .ct-name { color: var(--primary); }
/* 描述最多两行，超出省略，避免窄卡片里挤成三四行 */
.comp-type .ct-desc {
  font-size: 10.5px; color: var(--text-3); margin-top: 4px; line-height: 1.45;
  display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2;
  overflow: hidden; min-height: 2.9em;
}

/* ---------- 风格选择（横向滚动，两端渐隐提示可滚动） ---------- */
.style-row {
  max-width: 860px;
  margin: 18px auto 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 16px, #000 calc(100% - 16px), transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 16px, #000 calc(100% - 16px), transparent 100%);
}
.style-item {
  border: 1.5px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  background: var(--card);
  transition: var(--transition);
  user-select: none;
}
.style-item:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.style-item.active { border-color: var(--primary); box-shadow: inset 0 0 0 .5px var(--primary); }
.style-preview { height: 52px; position: relative; }
.style-preview .sp-title { position: absolute; left: 10%; top: 22%; width: 46%; height: 6px; border-radius: 3px; }
.style-preview .sp-line1 { position: absolute; left: 10%; top: 48%; width: 68%; height: 3.5px; border-radius: 3px; opacity: .55; }
.style-preview .sp-line2 { position: absolute; left: 10%; top: 64%; width: 55%; height: 3.5px; border-radius: 3px; opacity: .35; }
.style-preview .sp-dot { position: absolute; right: 8%; top: 20%; width: 14px; height: 14px; border-radius: 50%; opacity: .85; }
.style-name { font-size: 11.5px; text-align: center; padding: 6px 0 7px; color: var(--text-2); font-weight: 500; }
.style-item.active .style-name { color: var(--primary); font-weight: 600; }

/* ---------- 其他入口 ---------- */
.secondary-actions {
  max-width: 860px;
  margin: 24px auto 0;
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.secondary-action {
  display: flex; align-items: center; gap: 7px;
  font-size: 12.5px; color: var(--text-2);
  background: var(--card);
  border: 1px solid var(--line);
  padding: 8px 16px;
  border-radius: 22px;
  cursor: pointer;
  transition: var(--transition);
}
.secondary-action .ui-ico { color: var(--text-3); transition: var(--transition); }
.secondary-action:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.secondary-action:hover .ui-ico { color: var(--primary); }

/* ---------- 区块标题 ---------- */
.section-head {
  display: flex; align-items: center; justify-content: space-between;
  margin: 34px 0 16px;
}
.section-title { font-size: 16px; font-weight: 700; letter-spacing: -0.01em; display: flex; align-items: center; gap: 9px; }
.section-title .bar { width: 3px; height: 15px; background: var(--primary); border-radius: 3px; }
.section-more {
  font-size: 12.5px; color: var(--text-3); cursor: pointer;
  display: inline-flex; align-items: center; gap: 4px;
  transition: var(--transition);
}
.section-more:hover { color: var(--primary); }

/* ---------- 项目卡片 ---------- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}
.project-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}
.project-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--line-strong); }
.project-thumb {
  aspect-ratio: 16 / 9;
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}
.project-thumb img, .project-thumb canvas { width: 100%; height: 100%; object-fit: cover; display: block; }
.project-thumb .thumb-empty {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-3); font-size: 12px;
  flex-direction: column; gap: 6px;
}
.project-thumb .thumb-status {
  position: absolute; top: 9px; left: 9px;
}
.project-info { padding: 13px 15px 14px; }
.project-name {
  font-size: 13.5px; font-weight: 600;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.project-meta {
  display: flex; align-items: center; gap: 8px;
  font-size: 11.5px; color: var(--text-3); margin-top: 6px;
  font-variant-numeric: tabular-nums;
}
.project-menu-btn {
  position: absolute; top: 10px; right: 10px;
  width: 28px; height: 28px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  display: none;
  align-items: center; justify-content: center;
  cursor: pointer;
  font-size: 15px;
  color: var(--text-2);
  z-index: 2;
  transition: var(--transition);
}
.project-menu-btn:hover { background: #fff; color: var(--text); box-shadow: var(--shadow-sm); }
.project-card:hover .project-menu-btn { display: flex; }
.project-card-new {
  border: 1.5px dashed var(--line-strong);
  background: transparent;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 9px;
  color: var(--text-3);
  min-height: 200px;
  border-radius: 16px;
  cursor: pointer;
  text-align: center;
  line-height: 1.7;
  transition: var(--transition);
}
.project-card-new:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.project-card-new .plus { display: flex; align-items: center; justify-content: center; }

/* ---------- 模板中心 ---------- */
.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.template-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.template-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.template-thumb { aspect-ratio: 16/9; position: relative; }
.template-thumb canvas { width: 100%; height: 100%; display: block; }
.template-body { padding: 15px 17px 16px; }
.template-name { font-weight: 700; font-size: 14.5px; letter-spacing: -0.01em; display: flex; align-items: center; gap: 8px; }
.template-desc { font-size: 12px; color: var(--text-3); margin-top: 5px; line-height: 1.5; }
.template-colors { display: flex; gap: 5px; margin-top: 10px; }
.template-colors span { width: 16px; height: 16px; border-radius: 50%; border: 2px solid #fff; box-shadow: 0 0 0 1px var(--line); }
.template-actions { margin-top: 12px; display: flex; gap: 8px; }

/* ---------- 素材库 ---------- */
.asset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}
.asset-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  transition: var(--transition);
}
.asset-card:hover { border-color: var(--line-strong); box-shadow: var(--shadow-sm); }
.asset-card .asset-img {
  aspect-ratio: 4/3;
  background: var(--bg-deep) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20"><rect width="10" height="10" fill="%23e8eaf1"/><rect x="10" y="10" width="10" height="10" fill="%23e8eaf1"/></svg>');
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.asset-card img { width: 100%; height: 100%; object-fit: cover; }
.asset-name { font-size: 11.5px; padding: 8px 10px 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.asset-meta { font-size: 10.5px; color: var(--text-3); padding: 0 10px 9px; }
.asset-del {
  position: absolute; top: 8px; right: 8px;
  width: 26px; height: 26px; border-radius: 7px;
  background: rgba(255,255,255,.94); border: 1px solid var(--line);
  display: none; align-items: center; justify-content: center;
  cursor: pointer; color: var(--danger); font-size: 13px;
  transition: var(--transition);
}
.asset-del:hover { background: #fff; box-shadow: var(--shadow-sm); }
.asset-card:hover .asset-del { display: flex; }

/* ---------- 设置 / 个人中心卡片 ---------- */
.settings-card { max-width: 680px; padding: 22px; border-radius: 16px; margin-bottom: 18px; }
.settings-card h3 {
  font-size: 16px; font-weight: 700; letter-spacing: -0.01em;
  display: flex; align-items: center; gap: 9px;
  margin-bottom: 6px;
}
.settings-card h3 .ui-ico { color: var(--text-2); }
.settings-card .sub { color: var(--text-3); font-size: 12.5px; margin-bottom: 18px; line-height: 1.6; }
.settings-row { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; border-bottom: 1px solid var(--bg-deep); gap: 20px; }
.settings-row:last-child { border-bottom: none; padding-bottom: 0; }
.settings-row .sr-label { font-size: 13px; font-weight: 500; color: var(--text-2); }
.settings-row .sr-desc { font-size: 12px; color: var(--text-3); margin-top: 4px; line-height: 1.5; }

/* ---------- 页面标题区 ---------- */
.page-head { margin-bottom: 24px; }
.page-head h2 { font-size: 24px; font-weight: 700; letter-spacing: -0.02em; }
.page-head .desc { color: var(--text-3); font-size: 13px; margin-top: 8px; line-height: 1.6; max-width: 760px; }

@media (max-width: 900px) {
  .comp-types { grid-template-columns: repeat(3, 1fr); }
  .style-row { grid-template-columns: repeat(3, 1fr); }
}