/* ===== 主题变量 ===== */
:root {
  --primary: #5a7cf9;
  --primary-hover: #4a6ce9;
  --primary-light: #eef1fe;

  --bg-body: #f5f7fa;
  --bg-card: #ffffff;
  --bg-header: #ffffff;
  --bg-footer: #1a1a2e;
  --bg-section: #ffffff;
  --bg-search-overlay: rgba(0,0,0,0.55);
  --bg-announcement: #1a1a2e;
  --bg-input: #ffffff;

  --text-primary: #1a1a2e;
  --text-secondary: #5a5a7a;
  --text-muted: #9999b3;
  --text-white: #ffffff;

  --border-color: #e8e8ef;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --shadow-card: 0 2px 12px rgba(90,124,249,0.08);

  --container-w: 90%;
  --nav-h: 64px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --dropdown-bg: #ffffff;
  --dropdown-border: #e0e0ea;
  --dropdown-text: #555577;
  --dropdown-text-hover: #1a1a2e;
  --dropdown-text-active: #5a7cf9;
  --dropdown-bg-active: rgba(90,124,249,0.08);
  --dropdown-shadow: 0 8px 28px rgba(0,0,0,0.1);

  --transition: all 0.25s ease;
}

[data-theme="dark"] {
  --primary: #6d8cff;
  --primary-hover: #5d7cef;
  --primary-light: #1e2440;

  --bg-body: #0f0f1a;
  --bg-card: #1a1a2e;
  --bg-header: #14142a;
  --bg-footer: #0a0a14;
  --bg-section: #16162a;
  --bg-search-overlay: rgba(0,0,0,0.7);
  --bg-announcement: #0a0a14;
  --bg-input: #22223a;

  --text-primary: #e0e0f0;
  --text-secondary: #a0a0c0;
  --text-muted: #6a6a8a;
  --text-white: #f0f0ff;

  --border-color: #2a2a44;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.4);
  --dropdown-bg: #1a1a38;
  --dropdown-border: rgba(255,255,255,0.08);
  --dropdown-text: rgba(255,255,255,0.7);
  --dropdown-text-hover: #fff;
  --dropdown-text-active: #6d8cff;
  --dropdown-bg-active: rgba(90,124,249,0.12);
  --dropdown-shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.25);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .3s ease, color .3s ease;
}

a { color: var(--text-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }

img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 20px;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ===== 公告滚动 ===== */
.announcement-bar {
  color: var(--text-secondary);
  height: 36px;
  line-height: 36px;
  font-size: 15px;
  font-weight: bold;
  overflow: hidden;
  position: sticky;
  top: 0;
  z-index: 998;
  background: var(--bg-body);
}
.announcement-bar .container {
  display: flex;
  align-items: center;
  height: 100%;
  overflow: hidden;
}
.announcement-bar .ann-scroll-wrap {
  flex: 1;
  overflow: hidden;
  position: relative;
  height: 100%;
}
.announcement-bar .ann-scroll-inner {
  display: inline-block;
  white-space: nowrap;
  position: absolute;
  left: 100%;
  top: 0;
  animation: ann-scroll 240s linear infinite;
}
.announcement-bar .ann-scroll-inner:hover { animation-play-state: paused; }
@keyframes ann-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-200%); }
}
.announcement-bar .ann-label {
  display: flex;
  align-items: center;
  padding: 0 4px;
  height: 100%;
  font-size: 14px;
  flex-shrink: 0;
  margin-right: 6px;
  color: var(--primary);
  background: transparent;
}

/* ===== 导航栏 ===== */
.navbar {
  position: sticky;
  top: 36px;
  z-index: 999;
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: var(--nav-h);
}
.navbar .container {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 0;
}
.navbar .logo {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  margin-right: 24px;
}
.navbar .logo img { width: 100%; height: 100%; object-fit: cover; }
.navbar .nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  min-width: 0;
}
.navbar .nav-list a {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  color: var(--text-secondary);
  white-space: nowrap;
  background: transparent;
}
.navbar .nav-list a:hover,
.navbar .nav-list a.active {
  color: var(--primary);
  background: transparent;
}
.navbar .nav-list a i { font-size: 16px; }

/* 右侧操作区 - 关键：不换行 */
.navbar .nav-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  flex-wrap: nowrap;
}
.navbar .nav-actions .action-btn {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--text-secondary);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  position: relative;
  flex-shrink: 0;
}
.navbar .nav-actions .action-btn:hover {
  background: var(--primary-light);
  color: var(--primary);
}

/* 登录/注册 - 不换行 */
.navbar .nav-actions #loginGroup {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  flex-wrap: nowrap;
}
.navbar .nav-actions .btn-login {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}
.navbar .nav-actions .btn-login:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.navbar .nav-actions .btn-reg {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  border: none;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}
.navbar .nav-actions .btn-reg:hover { background: var(--primary-hover); }

/* 已登录用户 */
.navbar .user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  flex-shrink: 0;
}
.navbar .user-info .avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--primary-light);
  flex-shrink: 0;
}
.navbar .user-info .avatar img { width: 100%; height: 100%; object-fit: cover; }
.navbar .user-info .user-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}
.navbar .user-info .user-meta .nickname { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.navbar .user-info .user-meta .balance { font-size: 11px; color: var(--text-muted); }
.navbar .user-info .user-meta .balance i { color: var(--primary); margin-right: 2px; font-size: 11px; }

/* 汉堡菜单 */
.navbar .hamburger {
  display: none !important;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-shrink: 0;
}
.navbar .hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== 通知弹窗 ===== */
.notice-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 9999;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  opacity: 0;
  transition: opacity .25s ease;
}
.notice-overlay.active {
  display: flex;
  opacity: 1;
}
.notice-overlay.closing {
  opacity: 0;
  pointer-events: none;
}
.notice-overlay.active .notice-modal {
  animation: noticeSlideIn .3s ease;
}
.notice-overlay.closing .notice-modal {
  animation: noticeSlideOut .25s ease;
}

@keyframes noticeSlideIn {
  from { opacity: 0; transform: scale(.93) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes noticeSlideOut {
  from { opacity: 1; transform: scale(1) translateY(0); }
  to { opacity: 0; transform: scale(.93) translateY(12px); }
}

.notice-modal {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: noticeSlideIn .3s ease;
}
.notice-modal .notice-header {
  padding: 28px 28px 0;
  text-align: center;
}
.notice-modal .notice-header .notice-icon { font-size: 48px; color: var(--primary); }
.notice-modal .notice-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 8px;
}
.notice-modal .notice-body {
  padding: 20px 28px;
  overflow-y: auto;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
  max-height: calc(70vh - 160px);
}
.notice-modal .notice-body p { margin-bottom: 12px; }
.notice-close-wrap {
  text-align: center;
  margin-top: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 10000;
  clear: both;
}
.notice-close-wrap .notice-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 22px;
  cursor: pointer;
  transition: all .25s ease;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
.notice-close-wrap .notice-close:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
  transform: rotate(90deg);
}

/* ===== 移动端导航菜单动画 ===== */
.navbar .nav-list.mobile-open {
  display: flex !important;
  animation: navSlideDown .28s ease;
}
.navbar .nav-list.mobile-closing {
  display: flex !important;
  animation: navSlideUp .26s ease forwards;
}
@keyframes navSlideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes navSlideUp {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-8px); }
}


/* ===== 全局过渡优化 ===== */
.navbar .nav-actions .action-btn i { transition: transform .25s ease; }
.navbar .nav-actions .action-btn:hover i { transform: rotate(15deg) scale(1.1); }
.navbar .nav-actions .btn-login, 
.navbar .nav-actions .btn-reg { transition: all .25s ease; }
.navbar .nav-actions .btn-login:hover { transform: translateY(-1px); }
.navbar .nav-actions .btn-reg:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(90,124,249,0.3); }
.feature-card { transition: all .3s cubic-bezier(.4,0,.2,1); }
.product-card { transition: all .3s cubic-bezier(.4,0,.2,1); }
.load-more-btn { transition: all .25s ease; }
.float-sidebar .float-item { transition: all .22s ease; }
.notice-close-wrap .notice-close { transition: all .25s ease; }

.nav-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.45);
  z-index: 90;
  opacity: 0;
  transition: opacity .28s ease;
}
.nav-overlay.active { display: block; opacity: 1; }
.nav-overlay.closing { opacity: 0; pointer-events: none; }
/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .container {
        max-width: 100%;      /* ← 关键：手机端取消 90% 限制 */
        padding: 0 12px;
    }
  .navbar .nav-list {
    display: none !important;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    width: 100%;
    background: var(--bg-header);
    flex-direction: column;
    padding: 12px 20px;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
    z-index: 998;
  }
  .navbar .nav-list.mobile-open { display: flex !important; animation: navSlideDown .28s ease; }
  .navbar .nav-list.mobile-closing { display: flex !important; animation: navSlideUp .26s ease forwards; }
  .navbar .hamburger { display: flex !important; }
  .navbar .logo { margin-right: 10px; width: 34px; height: 34px; }
  .navbar .nav-actions { margin-left: auto; }
  .navbar .nav-actions .action-btn { display: inline-flex; }
  .navbar .nav-actions .btn-login { padding: 4px 10px; font-size: 11px; display: inline-flex; }
  .navbar .nav-actions .btn-reg { padding: 4px 10px; font-size: 11px; display: inline-flex; }
  .navbar .user-info .user-meta { display: flex; }
  .announcement-bar .ann-label { font-size: 12px; padding: 0 4px; margin-right: 4px; }
  .notice-modal { width: 92%; max-width: 420px; }
  .notice-modal .notice-header { padding: 20px 20px 0; }
  .notice-modal .notice-body { padding: 14px 20px; }
}

@media (max-width: 480px) {
    .container {
        max-width: 100%;      /* ← 关键：手机端取消 90% 限制 */
        padding: 0 8px;
    }
  .navbar .nav-actions { gap: 4px; }
}