/* ============================================================
 * 首页专属样式（品牌横幅 / 标题 / 成为合伙人 CTA / 区块中心 / 二维码弹窗）
 * 2026-08-17 v2 改版：
 *   1. h1 改为品牌渐变（teal→sky→indigo），深/浅色模式皆清晰可读
 *   2. 品牌横幅 .hero-eyebrow 升级为双行玻璃 banner（更具体：飞书知识库/邀请码/设备绑定）
 *   3. .section-block 背景改为主题感知，浅色模式呈现为浅色玻璃卡
 *   4. 合伙人按钮去掉 🤝/→，文字居中
 *   5. 二维码弹窗：居中弹出（移植 .admin-modal 居中样式）、标题居中、去掉 🤝
 * ============================================================ */

/* 粒子背景：style.css 把整个画布设为 opacity:0.65，导致看起来黑乎乎的。
   这里在 index.css（后加载）覆盖为不透明，让粒子真正亮起来。 */
#three-bg { opacity: 1 !important; }

/* 科技感点阵网格：固定背景上的细网格 + 径向遮罩，强化"科技"氛围 */
.hero::before {
  content: '';
  position: fixed; inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 85%);
          mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 85%);
  animation: gridDrift 30s linear infinite;
}
@keyframes gridDrift {
  0%   { background-position: 0 0, 0 0; }
  100% { background-position: 56px 56px, 56px 56px; }
}

/* 标题：品牌渐变文字（深浅模式均清晰；不再是单一白色） */
.hero-title {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1.1;
  margin: 0 auto 28px;             /* 加大与上方/下方的间距，缓解紧凑感 */
  max-width: 960px;
  text-align: center;
  background: var(--grad-brand, linear-gradient(135deg, #5eead4 0%, #38bdf8 50%, #818cf8 100%));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  text-shadow: 0 2px 24px rgba(56, 189, 248, 0.28);
  filter: drop-shadow(0 2px 12px rgba(20, 30, 55, 0.10));
}

/* 副标题：主题感知文字色，单行（不再换行） */
.lead {
  text-align: center;
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.7;
  color: var(--text-1, #c9d1e0);
  max-width: 780px;
  margin: 0 auto 44px;             /* 加大与下方按钮的间距 */
  letter-spacing: 0.2px;
  white-space: nowrap;             /* 保持一行 */
}
.lead strong {
  color: var(--text-0, #f4f6fb);
  font-weight: 700;
}

/* 品牌定位横幅（精简为单行；加大与下方标题的间距） */
.hero-eyebrow {
  display: flex;
  width: fit-content;
  max-width: calc(100vw - 32px);
  align-items: center;
  gap: 12px;
  margin: 16px auto 40px;          /* 顶部 16px（曾 8px→13→16，逐步与视口顶拉开）+ 底部 40px 与标题拉开 */
  padding: 11px 22px 11px 16px;
  border-radius: 999px;
  background: var(--surface, rgba(255, 255, 255, 0.04));
  border: 1px solid var(--border-strong, rgba(255, 255, 255, 0.16));
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  color: inherit;
  font: inherit;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.hero-eyebrow:hover {
  transform: translateY(-2px);
  border-color: rgba(56, 189, 248, 0.55);
  box-shadow: 0 10px 28px rgba(56, 189, 248, 0.18);
  background: var(--surface-hover, rgba(255, 255, 255, 0.08));
}
.eyebrow-dot {
  flex-shrink: 0;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: linear-gradient(135deg, #5eead4, #38bdf8);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.65);
  animation: eyebrow-pulse 2.4s ease-in-out infinite;
}
@keyframes eyebrow-pulse {
  0%, 100% { box-shadow: 0 0 12px rgba(56, 189, 248, 0.45); }
  50%      { box-shadow: 0 0 18px rgba(56, 189, 248, 0.85); }
}
.eyebrow-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.4px;
  color: var(--text-0, #f4f6fb);
}

/* ====== 区块容器（主题感知：深色→深玻璃；浅色→浅玻璃） ====== */
.section-block {
  width: min(1100px, calc(100vw - 32px));
  margin: 56px auto 0;
  padding: 36px 28px;
  border-radius: var(--r-lg);
  background: var(--surface, rgba(20, 24, 32, 0.42));
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
}
.section-title {
  display: flex; align-items: center; gap: 14px;
  font-size: 22px; font-weight: 700; letter-spacing: -0.3px;
  margin-bottom: 8px;
}
.section-title .bar {
  display: inline-block; width: 4px; height: 22px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--brand-1, #38bdf8), var(--brand-2, #2dd4bf));
}
.section-sub {
  color: var(--text-2); font-size: 14px; margin: 0 0 28px;
}

/* ====== 区块①：双入口（项目库风格，更大） ======
   冷色调：品牌蓝绿（与全站主色一致，强调"工具"）
   ================================================================= */
.section-block#center1 .project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 8px;
}
#center1 > .section-title > .bar {
  background: linear-gradient(180deg, var(--brand-1, #38bdf8), var(--brand-2, #2dd4bf));
}
/* 双入口大卡片：与项目库一致但更宽更高；冷色调区分 */
#center1 .project-card-big {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.06), rgba(45, 212, 191, 0.04));
  border-color: rgba(56, 189, 248, 0.18);
}
#center1 .project-card-big:hover {
  border-color: rgba(56, 189, 248, 0.55);
  box-shadow: 0 12px 36px rgba(56, 189, 248, 0.22);
}
#center1 .project-card-big::before {
  background: var(--grad-brand, linear-gradient(135deg, #38bdf8, #2dd4bf));  /* 入口中心：品牌蓝绿 */
}
/* 双入口大卡片：与项目库一致但更宽更高 */
.project-card-big {
  padding: 24px 24px;
  gap: 18px;
  min-height: 130px;
}
.project-card-big .project-icon {
  width: 64px; height: 64px;
  font-size: 32px;
  border-radius: 16px;
}
.project-card-big .project-info h3 {
  font-size: 18px; font-weight: 700;
  margin-bottom: 6px;
}
.project-card-big .project-info p {
  font-size: 13.5px;
  white-space: normal;     /* 允许换行 */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}
.project-card-big .project-go {
  font-size: 14px;
  padding-left: 8px;
}

/* ====== 顺丰系列入口卡（与上方两张卡风格统一） ======
   卡片本身的边框/底色/强调色全部与「文档分享 / 代运营素材」保持一致；
   4 张卡以 2×2 网格自然铺开，不强制整宽占行，让入口中心看起来更平衡。
   升级日期：2026-08-30  新增第 4 张「顺丰 8 折自助下单」入口 */
/* sf-feature 不再独占整行（grid-column 默认 auto 即跟随 .project-grid 的 1fr 1fr）*/
/* "新"徽章：用品牌色（非红色）标注这是最新入口，和其他卡风格协调 */
.card-badge {
  display: inline-flex;
  align-items: center;
  margin-left: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.5px;
  vertical-align: middle;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.28), rgba(45, 212, 191, 0.28));
  border: 1px solid rgba(56, 189, 248, 0.45);
  color: var(--brand-1, #38bdf8);
  transform: translateY(-2px);
}

/* ====== 区块②：项目库 ======
   暖色调：橙→粉紫（与冷色入口中心做视觉区分）
   ================================================================= */
.section-block#center2 > .section-title > .bar {
  background: linear-gradient(180deg, #fb923c, #f472b6);
}
/* 项目库的图标容器：暖色底纹（橙→粉） */
#center2 .project-icon {
  background: linear-gradient(135deg, rgba(251, 146, 60, 0.22), rgba(244, 114, 182, 0.22));
  border-color: rgba(251, 146, 60, 0.32);
}
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 8px;
}
.project-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 18px 18px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.10);
  text-decoration: none;
  color: inherit;
  transition: transform 0.28s var(--ease), background 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #fb923c, #f472b6);  /* 项目库：橙→粉 */
  opacity: 0;
  transition: opacity 0.28s var(--ease);
  z-index: 0;
  pointer-events: none;
}
.project-card > * { position: relative; z-index: 1; }
.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(251, 146, 60, 0.55);                 /* 项目库：橙色描边 */
  box-shadow: 0 12px 36px rgba(251, 146, 60, 0.22);
  background: rgba(255, 255, 255, 0.06);
}
.project-card:hover::before { opacity: 0.06; }
.project-icon {
  flex-shrink: 0;
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; line-height: 1;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.22), rgba(45, 212, 191, 0.22));
  border: 1px solid rgba(56, 189, 248, 0.32);
}
.project-info { flex: 1; min-width: 0; }
.project-info h3 {
  font-size: 15px; font-weight: 600;
  margin: 0 0 4px;
  letter-spacing: -0.2px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.project-info p {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.project-go {
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-1, #38bdf8);
  flex-shrink: 0;
}
.project-loading {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-3);
  padding: 30px 0;
  font-size: 13px;
}

/* ====== 成为合伙人（hero 下方居中，仅标题，单行 pill） ====== */
.partner-bar {
  display: flex;
  justify-content: center;
  margin: 0;                       /* 间距由 .lead margin-bottom 控制 */
}
.partner-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 44px;              /* 适合单行"成为合伙人"的紧凑 pill */
  border-radius: 999px;
  border: 1px solid rgba(56, 189, 248, 0.45);
  cursor: pointer;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.22), rgba(45, 212, 191, 0.22));
  color: inherit;
  font: inherit;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), box-shadow 0.25s var(--ease);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-align: center;
}
.partner-btn:hover {
  transform: translateY(-3px) scale(1.02);
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.34), rgba(45, 212, 191, 0.34));
  box-shadow: 0 12px 36px rgba(56, 189, 248, 0.32);
  border-color: rgba(56, 189, 248, 0.65);
}
.partner-btn:active { transform: translateY(0) scale(0.98); }
.partner-btn strong { font-size: 17px; font-weight: 700; letter-spacing: 0.6px; }

/* ====== 居中模态（admin-modal，移植自 admin.css） =====
   首页未加载 admin.css，因此在这里提供完整的居中弹层样式，
   否则 .admin-modal 会以普通块元素渲染并掉到页面底部。 */
.admin-modal {
  position: fixed; inset: 0; z-index: 400;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.admin-modal[hidden] { display: none; }
.admin-modal-mask {
  position: absolute; inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: adminModalFadeIn 0.25s var(--ease, ease);
}
.admin-modal-card {
  position: relative; z-index: 1;
  width: min(520px, 100vw);
  max-height: 90vh; overflow-y: auto;
  background: var(--surface, rgba(20, 24, 32, 0.92));
  border: 1px solid var(--border-strong, rgba(255, 255, 255, 0.16));
  border-radius: var(--r-lg, 18px);
  padding: 22px 24px 18px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  animation: adminModalScaleIn 0.28s var(--ease, cubic-bezier(0.16, 1, 0.3, 1));
}
.admin-modal-title { font-size: 17px; font-weight: 700; margin-bottom: 6px; letter-spacing: -0.2px; }
.admin-modal-sub { font-size: 12.5px; color: var(--text-2); margin-bottom: 14px; }
.admin-modal-input { width: 100%; padding: 10px 12px; font-size: 14px; }
.admin-modal-err { color: var(--err, #f87171); font-size: 12px; min-height: 16px; margin-top: 6px; }
.admin-modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 16px; }
.admin-modal-actions .btn { padding: 8px 16px; font-size: 13px; }
@keyframes adminModalFadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes adminModalScaleIn { from { opacity: 0; transform: translateY(20px) scale(0.96); } to { opacity: 1; transform: none; } }

/* ====== 二维码弹窗 ====== */
.qr-card { width: min(380px, 100vw); text-align: center; padding: 26px 24px 22px; }
.qr-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: 0.3px;
  text-align: center;
  color: var(--text-0);
}
.qr-sub { font-size: 13px; color: var(--text-2); margin-bottom: 16px; line-height: 1.6; padding: 0 6px; text-align: center; }
.qr-img-wrap {
  display: flex; justify-content: center;
  margin: 8px auto 12px;
  padding: 10px;
  background: #ffffff;
  border-radius: 14px;
  width: 240px; height: 240px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}
.qr-img { width: 100%; height: 100%; object-fit: contain; display: block; }
.qr-tip {
  display: inline-block;
  font-size: 14px;
  color: var(--brand-1, #5eead4);
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.30);
  border-radius: 999px;
  padding: 6px 18px;
  margin-bottom: 6px;
  letter-spacing: 0.5px;
  font-weight: 600;
}
/* 让 QR 弹窗里的按钮也居中（保持视觉统一） */
.qr-card .admin-modal-actions { justify-content: center; }

/* ====== 底部 ====== */
.hero footer {
  display: block;
  text-align: center;
  margin: 80px auto 0;
  padding: 24px 16px 8px;
  color: var(--text-2, #8a93a8);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.4px;
  border-top: 1px solid var(--border, rgba(255, 255, 255, 0.08));
}

/* ====== 移动端 ====== */
@media (max-width: 720px) {
  .section-block#center1 .project-grid { grid-template-columns: 1fr; }
  .project-card-big { padding: 18px 18px; min-height: 110px; gap: 14px; }
  .project-card-big .project-icon { width: 52px; height: 52px; font-size: 26px; border-radius: 12px; }
  .project-card-big .project-info h3 { font-size: 16px; }
  .hero-eyebrow { padding: 9px 16px 9px 12px; gap: 10px; border-radius: 18px; margin-bottom: 28px; }
  .eyebrow-title { font-size: 12.5px; }
  .partner-btn { padding: 11px 32px; }
  .partner-btn strong { font-size: 15px; }
  .qr-img-wrap { width: 200px; height: 200px; }
  .hero footer { margin-top: 56px; font-size: 12px; }
  .lead { white-space: normal; }   /* 窄屏允许副标题换行，避免溢出 */
}
@media (max-width: 640px) {
  .section-block { padding: 26px 18px; margin-top: 40px; }
  .project-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .project-card { padding: 14px 14px 14px 12px; }
  .project-icon { width: 44px; height: 44px; font-size: 22px; }
  .project-go { display: none; }
}
@media (max-width: 420px) {
  .project-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: clamp(32px, 9vw, 46px); }
}