/* ============================================================
   DAISCH 戴世 中文官网 — Header & Footer Styles
   daisch-global.css
   ============================================================ */

/* ── 1. Skip Link ── */
.daisch-skip-link {
  display: block;
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 20px;
  background: var(--daisch-accent);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  border-radius: 0 0 var(--daisch-radius-sm) var(--daisch-radius-sm);
  z-index: 10000;
  text-decoration: none;
}
.daisch-skip-link:focus { top: 0; }

/* ── 2. Header Wrapper ── */
.daisch-header-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--daisch-white);
  transform: translateZ(0);
}

/* ── 3. Header Top Bar ── */
.daisch-header-top {
  background: var(--daisch-gray-100);
  border-bottom: 1px solid var(--daisch-border-light);
  height: var(--daisch-header-top-height);
  transition: height 0.3s var(--daisch-ease-out),
              opacity 0.3s var(--daisch-ease-out);
}

.daisch-header-top__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.daisch-header-top__left,
.daisch-header-top__right {
  display: flex;
  align-items: center;
  gap: var(--daisch-space-4);
}

.daisch-header-top__contact {
  display: flex;
  align-items: center;
  gap: var(--daisch-space-2);
  font-size: 12px;
  color: var(--daisch-text-muted);
  text-decoration: none;
  transition: color 0.2s;
  white-space: nowrap;
}
.daisch-header-top__contact:hover { color: var(--daisch-accent); }

.daisch-header-top__contact svg {
  flex-shrink: 0;
  color: var(--daisch-gray-400);
}

/* Auth group (登录 | 注册 | 账户) */
.daisch-header-top__auth-group {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--daisch-text-secondary);
  border: 1px solid var(--daisch-gray-300);
  border-radius: var(--daisch-radius-sm);
  white-space: nowrap;
}
.daisch-header-top__auth-group a {
  color: var(--daisch-text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}
.daisch-header-top__auth-group a:hover {
  color: var(--daisch-accent);
}
.daisch-header-top__sep {
  margin: 0 6px;
  color: var(--daisch-gray-300);
  user-select: none;
}

/* Cart link in top bar */
.daisch-header-top__cart-link {
  display: flex;
  align-items: center;
  gap: var(--daisch-space-2);
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--daisch-text-secondary);
  background: transparent;
  text-decoration: none;
  border: 1px solid var(--daisch-gray-300);
  border-radius: var(--daisch-radius-sm);
  transition: background 0.2s, border-color 0.2s;
  position: relative;
}
.daisch-header-top__cart-link:hover {
  background: var(--daisch-gray-150);
  border-color: var(--daisch-gray-400);
  color: var(--daisch-text-primary);
}

.daisch-header-top__cart-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  font-size: 11px;
  font-weight: 700;
  color: var(--daisch-white);
  background: var(--daisch-accent);
  border-radius: var(--daisch-radius-full);
  line-height: 1;
}

/* Compact state: hide top bar */
.daisch-header-wrapper--compact .daisch-header-top {
  height: 0;
  opacity: 0;
  overflow: hidden;
  border-bottom: none;
}

/* ── 4. Main Header ── */
.daisch-header {
  position: relative;
  background: var(--daisch-white);
  border-bottom: 1px solid var(--daisch-border-light);
  height: var(--daisch-header-height);
  transition: height 0.3s var(--daisch-ease-out),
              box-shadow 0.3s var(--daisch-ease-out);
}

.daisch-header--scrolled {
  height: var(--daisch-header-height-scroll);
  box-shadow: var(--daisch-shadow-sm);
}

.daisch-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 var(--daisch-page-gutter);
}

/* ── 5. Logo ── */
.daisch-header__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.daisch-logo {
  display: inline-block;
  text-decoration: none;
  line-height: 0;
}

.daisch-logo__img {
  display: block;
  height: 28px !important;
  width: auto !important;
  max-width: 200px;
}

/* ── 6. Desktop Navigation ── */
.daisch-nav {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: var(--daisch-space-2);
  flex-wrap: nowrap;
  white-space: nowrap;
}

.daisch-nav__list {
  display: flex;
  align-items: center;
  gap: var(--daisch-space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.daisch-nav__list li {
  position: relative;
  margin: 0;
}

.daisch-nav__list a {
  display: flex;
  align-items: center;
  height: 40px;
  padding: 0 20px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
  color: var(--daisch-text-secondary);
  text-decoration: none;
  border-radius: var(--daisch-radius-sm);
  transition: color 0.2s var(--daisch-ease-out),
              background 0.2s var(--daisch-ease-out);
  white-space: nowrap;
}

.daisch-nav__list a:hover,
.daisch-nav__list a:focus-visible {
  color: var(--daisch-text-primary);
  background: var(--daisch-gray-100);
}

.daisch-nav__list .current-menu-item > a {
  color: var(--daisch-accent);
}

/* Sub-menu dropdown arrow */
.daisch-nav__list .menu-item-has-children > a::after {
  content: '';
  display: inline-block;
  width: 5px; height: 5px;
  margin-left: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  vertical-align: middle;
}

/* Dropdown */
.daisch-nav__list .sub-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  min-width: 180px;
  padding: var(--daisch-space-2);
  background: var(--daisch-white);
  border: 1px solid var(--daisch-border);
  border-radius: var(--daisch-radius-md);
  box-shadow: var(--daisch-shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s var(--daisch-ease-out),
              visibility 0.2s,
              transform 0.2s var(--daisch-ease-out);
  list-style: none;
  margin: 0;
}

.daisch-nav__list .menu-item-has-children:hover > .sub-menu,
.daisch-nav__list .menu-item-has-children:focus-within > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.daisch-nav__list .sub-menu a {
  height: 36px;
  padding: 0 12px;
  font-size: 14px;
}

/* ── 7. Header Actions ── */
.daisch-header__actions {
  display: flex;
  align-items: center;
  gap: var(--daisch-space-3);
  flex-shrink: 0;
  margin-left: auto;
}

/* Icon button */
.daisch-header__icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  padding: 0;
  background: none;
  border: none;
  color: var(--daisch-gray-700);
  cursor: pointer;
  border-radius: var(--daisch-radius-sm);
  transition: color 0.2s, background 0.2s;
}
.daisch-header__icon-btn:hover {
  color: var(--daisch-accent);
  background: var(--daisch-gray-100);
}

/* ── 8. Compact Header Buttons (hidden until scroll, match header top style) ── */
.daisch-header__compact-auth,
.daisch-header__compact-cart {
  display: none;
}
.daisch-header-wrapper--compact .daisch-header__compact-auth,
.daisch-header-wrapper--compact .daisch-header__compact-cart {
  display: inline-flex;
}

/* Auth group — same bordered style as top bar */
.daisch-header__compact-auth {
  align-items: center;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--daisch-text-secondary);
  border: 1px solid var(--daisch-gray-300);
  border-radius: var(--daisch-radius-sm);
  white-space: nowrap;
}
.daisch-header__compact-auth a {
  color: var(--daisch-text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}
.daisch-header__compact-auth a:hover {
  color: var(--daisch-accent);
}

/* Cart — same bordered button as top bar */
.daisch-header__compact-cart {
  position: relative;
  align-items: center;
  gap: var(--daisch-space-2);
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--daisch-text-secondary);
  background: transparent;
  text-decoration: none;
  border: 1px solid var(--daisch-gray-300);
  border-radius: var(--daisch-radius-sm);
  transition: background 0.2s, border-color 0.2s;
}
.daisch-header__compact-cart:hover {
  background: var(--daisch-gray-150);
  border-color: var(--daisch-gray-400);
  color: var(--daisch-text-primary);
}

.daisch-header__compact-cart-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  font-size: 11px;
  font-weight: 700;
  color: var(--daisch-white);
  background: var(--daisch-accent);
  border-radius: var(--daisch-radius-full);
  line-height: 1;
}

/* ── 9. Hamburger Menu Toggle ── */
.daisch-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.daisch-menu-toggle__bar {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--daisch-text-primary);
  border-radius: 1px;
  transition: transform 0.3s var(--daisch-ease-out),
              opacity 0.3s var(--daisch-ease-out);
}

.daisch-menu-toggle[aria-expanded="true"] .daisch-menu-toggle__bar:nth-child(1) {
  transform: rotate(45deg) translate(4px, 5px);
}
.daisch-menu-toggle[aria-expanded="true"] .daisch-menu-toggle__bar:nth-child(2) {
  opacity: 0;
}
.daisch-menu-toggle[aria-expanded="true"] .daisch-menu-toggle__bar:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -5px);
}

/* ── 9. Search Dropdown ── */
.daisch-search-dropdown {
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  padding: var(--daisch-space-5) 0;
  background: var(--daisch-white);
  border-bottom: 1px solid var(--daisch-border);
  box-shadow: var(--daisch-shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.3s var(--daisch-ease-out),
              visibility 0.3s,
              transform 0.3s var(--daisch-ease-out);
}
.daisch-search-dropdown[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.daisch-search-form {
  display: flex;
  align-items: center;
  background: var(--daisch-white);
  border: 1px solid var(--daisch-gray-300);
  border-radius: var(--daisch-radius-md);
  overflow: hidden;
  transition: border-color 0.2s;
}
.daisch-search-form:focus-within { border-color: var(--daisch-accent); }

.daisch-search-form__input {
  flex: 1;
  padding: 14px 20px;
  background: transparent;
  border: none;
  color: var(--daisch-text-primary);
  font-family: inherit;
  font-size: 16px;
  outline: none;
}
.daisch-search-form__input::placeholder { color: var(--daisch-text-muted); }

.daisch-search-form__submit {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 20px;
  background: none;
  border: none;
  color: var(--daisch-text-secondary);
  cursor: pointer;
  transition: color 0.2s;
}
.daisch-search-form__submit:hover { color: var(--daisch-accent); }

/* ── 10. Mobile Menu Overlay ── */
.daisch-mobile-menu {
  position: fixed;
  inset: 0;
  top: var(--daisch-header-height);
  z-index: 999;
  background: var(--daisch-white);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateX(100%);
  transition: transform 0.35s var(--daisch-ease-out),
              opacity 0.35s,
              visibility 0.35s;
}
.daisch-mobile-menu[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.daisch-mobile-menu__inner {
  padding: var(--daisch-space-5) var(--daisch-page-gutter) var(--daisch-space-8);
}

.daisch-mobile-nav__list {
  list-style: none;
  margin: 0; padding: 0;
}
.daisch-mobile-nav__list li { border-bottom: 1px solid var(--daisch-border-light); }
.daisch-mobile-nav__list li:last-child { border-bottom: none; }

.daisch-mobile-nav__list a {
  display: block;
  padding: var(--daisch-space-4) 0;
  font-size: 17px;
  font-weight: 500;
  color: var(--daisch-text-primary);
  text-decoration: none;
}
.daisch-mobile-nav__list a:hover { color: var(--daisch-accent); }

.daisch-mobile-nav__list .sub-menu {
  list-style: none;
  margin: 0;
  padding: 0 0 var(--daisch-space-2) var(--daisch-space-4);
}
.daisch-mobile-nav__list .sub-menu a {
  font-size: 14px;
  color: var(--daisch-text-secondary);
  padding: var(--daisch-space-2) 0;
}

.daisch-mobile-menu__footer {
  margin-top: var(--daisch-space-6);
  padding-top: var(--daisch-space-4);
  border-top: 1px solid var(--daisch-border);
}

/* ── 11. Body States ── */
body.daisch-menu-open { overflow: hidden; }

.daisch-main {
  padding-top: var(--daisch-header-total-height);
}

/* ── 12. Footer ── */
.daisch-footer {
  background: var(--daisch-footer-bg);
  color: var(--daisch-footer-text);
}

.daisch-footer__top {
  padding: var(--daisch-space-10) 0 var(--daisch-space-9);
}

.daisch-footer__grid {
  display: grid;
  grid-template-columns: 2fr 0.8fr 0.8fr 0.8fr 0.8fr;
  gap: var(--daisch-space-8);
  max-width: 1200px;
  margin: 0 auto;
  align-items: start;
}

/* Brand column */
.daisch-footer__brand { margin-bottom: var(--daisch-space-4); }

.daisch-footer__logo {
  display: inline-block;
  text-decoration: none;
  line-height: 0;
}
.daisch-footer__logo-img {
  display: block;
  height: 26px !important;
  width: auto !important;
  max-width: 200px;
}
  max-height: 40px;
  width: auto;
  height: auto;
}

.daisch-footer__tagline {
  font-size: 18px;
  font-weight: 700;
  color: #DDDDDD;
  line-height: 1.7;
  margin-bottom: var(--daisch-space-5);
}

/* Footer headings */
.daisch-footer__heading {
  font-size: 16px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--daisch-footer-heading);
  margin-bottom: var(--daisch-space-5);
}

/* Footer menus */
.daisch-footer__menu {
  list-style: none;
  margin: 0; padding: 0;
}
.daisch-footer__menu li { margin-bottom: var(--daisch-space-2); }
.daisch-footer__menu a {
  font-size: 15px;
  color: var(--daisch-footer-muted);
  text-decoration: none;
  transition: color 0.2s;
  line-height: 2;
}
.daisch-footer__menu a:hover { color: var(--daisch-accent); }

/* Social icon grid */
.daisch-footer__social-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--daisch-space-3);
}

.daisch-social-item {
  display: flex;
  align-items: center;
  gap: var(--daisch-space-2);
  padding: 6px 8px;
  border-radius: var(--daisch-radius-sm);
  color: var(--daisch-footer-muted);
  text-decoration: none;
  font-size: 13px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
  position: relative;
}
.daisch-social-item:hover,
.daisch-social-item:focus-visible {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.daisch-social-item__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: var(--daisch-radius-full);
  background: rgba(255, 255, 255, 0.12);
  flex-shrink: 0;
  transition: background 0.2s;
}
.daisch-social-item:hover .daisch-social-item__icon,
.daisch-social-item:focus-visible .daisch-social-item__icon {
  background: var(--daisch-accent);
}

.daisch-social-item__name { white-space: nowrap; }

/* QR code popup */
.daisch-social-item__qr {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 100px;
  background: #fff;
  padding: 6px;
  border-radius: var(--daisch-radius-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
  z-index: 10;
  object-fit: contain;
}
.daisch-social-item:hover .daisch-social-item__qr {
  display: block;
}

/* Footer bottom bar */
.daisch-footer__bottom {
  padding: var(--daisch-space-5) 0;
  border-top: 1px solid var(--daisch-footer-border);
  background: var(--daisch-footer-bottom-bg);
}

.daisch-footer__bottom-inner {
  display: grid;
  grid-template-columns: 2fr 0.8fr 0.8fr 0.8fr 0.8fr;
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
  gap: var(--daisch-space-3);
}

.daisch-footer__copyright {
  font-size: 13px;
  color: var(--daisch-footer-muted);
  margin: 0;
  grid-column: 1;
}

.daisch-footer__legal {
  display: flex;
  gap: var(--daisch-space-5);
  grid-column: 5;
  justify-content: flex-end;
}
.daisch-footer__legal a {
  font-size: 13px;
  color: var(--daisch-footer-muted);
  text-decoration: none;
  transition: color 0.2s;
  white-space: nowrap;
}
.daisch-footer__legal a:hover { color: var(--daisch-accent); }

/* Footer Contact */
.daisch-footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--daisch-space-2);
  margin-top: var(--daisch-space-4);
}
.daisch-footer__contact-item {
  display: flex;
  align-items: center;
  gap: var(--daisch-space-2);
  font-size: 14px;
  color: var(--daisch-footer-muted);
}
.daisch-footer__contact-item svg {
  flex-shrink: 0;
  color: #BBBBBB;
}

/* ── 13. Responsive — Tablet (≤ 1024px) ── */
@media (max-width: 1024px) {
  .daisch-header-top { display: none; }

  .daisch-nav { display: none; }
  .daisch-menu-toggle { display: flex; }

  .daisch-header__compact-auth,
  .daisch-header__compact-cart { display: inline-flex; }

  .daisch-main { padding-top: var(--daisch-header-height); }

  .daisch-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--daisch-space-7) var(--daisch-space-5);
  }
  .daisch-footer__col--brand { grid-column: 1 / -1; }
}

/* ── 14. Responsive — Mobile (≤ 768px) ── */
@media (max-width: 768px) {
  :root {
    --daisch-header-height: 60px;
    --daisch-page-gutter: 16px;
  }

  /* Mobile header: squeeze layout */
  .daisch-header__actions { gap: 8px; }
  .daisch-logo__img { height: 18px !important; width: auto !important; }
  .daisch-header__compact-auth,
  .daisch-header__compact-cart {
    padding: 4px 8px;
    font-size: 12px;
    gap: 4px;
  }
  .daisch-header__compact-auth { font-size: 11px; padding: 4px 8px; }
  .daisch-header__compact-auth .daisch-header-top__sep { margin: 0 3px; }
  .daisch-header__compact-cart span { display: none; }
  .daisch-menu-toggle { width: 36px; height: 36px; }

  .daisch-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--daisch-space-6) var(--daisch-space-4);
  }
  .daisch-footer__top {
    padding: var(--daisch-space-8) 0 var(--daisch-space-7);
  }
  .daisch-footer__bottom-inner {
    grid-template-columns: 1fr 1fr;
    text-align: center;
  }
  .daisch-footer__copyright { grid-column: auto; }
  .daisch-footer__legal {
    grid-column: auto;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--daisch-space-3);
  }
}

/* ── 15. Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  .daisch-header-wrapper,
  .daisch-header,
  .daisch-header-top,
  .daisch-search-dropdown,
  .daisch-mobile-menu { transition: none !important; }
}