/* ============================================================
   面试智管云 — 首页 redesign (Phase 1)
   ============================================================ */

:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #eff6ff;
  --color-accent: #ea580c;
  --color-accent-dark: #c2410c;
  --color-success: #059669;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-bg: #f8fafc;
  --color-bg-dark: #0f172a;
  --color-border: #e2e8f0;
  --color-white: #ffffff;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --header-height: 72px;
  --container-max: 1200px;
  --transition: 0.25s ease;
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg) !important;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.download-btn {
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.download-btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

/* ---- Header ---- */
.head {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  width: 100%;
  height: var(--header-height);
  display: flex;
  justify-content: center;
  margin: 0 !important;
  min-width: unset !important;
  overflow-x: visible !important;
  line-height: normal;
  margin-left: 0 !important;
}

.header-container {
  width: 100%;
  max-width: var(--container-max);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px;
  height: 100%;
  gap: 16px;
}

.logo-div {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  flex-shrink: 0;
  width: auto !important;
  height: auto !important;
  float: none !important;
  line-height: normal !important;
}

.img-logo {
  height: 40px;
  width: auto;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  float: none !important;
}

.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.3px;
  margin-left: 0 !important;
  float: none !important;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--color-text);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
}

.mobile-menu-btn:hover {
  background: var(--color-primary-light);
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.main-nav a.nav-btn-apply {
  background: var(--color-primary);
  color: var(--color-white) !important;
  padding: 8px 20px;
  border-radius: 999px;
  margin-left: 4px;
}

.main-nav a.nav-btn-apply:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  z-index: 998;
  opacity: 0;
  transition: opacity var(--transition);
}

.nav-overlay.is-open {
  display: block;
  opacity: 1;
}

@media (min-width: 901px) {
  .main-nav {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: min(100%, var(--container-max));
    height: var(--header-height);
    padding: 0 24px;
    display: flex !important;
    justify-content: flex-end;
    align-items: center;
    background: transparent;
    box-shadow: none;
    z-index: 1001;
    overflow: visible;
    pointer-events: none;
  }

  .main-nav ul {
    pointer-events: auto;
  }
}

@media (max-width: 1024px) {
  .main-nav a {
    font-size: 13px;
    padding: 8px 10px;
  }
}

@media (max-width: 900px) {
  .head {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .mobile-menu-btn {
    display: flex !important;
    align-items: center;
    justify-content: center;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(320px, 85vw);
    height: 100vh;
    height: 100dvh;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    padding: 80px 24px 32px;
    transition: transform 0.3s ease, visibility 0.3s ease;
    overflow-y: auto;
    display: block !important;
    transform: translateX(100%);
    visibility: hidden;
    pointer-events: none;
  }

  .main-nav.is-open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
  }

  .main-nav ul {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 4px;
    white-space: normal !important;
  }

  .main-nav a {
    display: block;
    padding: 14px 16px;
    font-size: 16px;
  }

  .main-nav a.nav-btn-apply {
    margin: 16px 0 0;
    text-align: center;
  }
}

/* ---- Hero ---- */
.hero-section {
  background: radial-gradient(ellipse at 30% 20%, #dbeafe 0%, var(--color-bg) 55%);
  padding: 64px 24px 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: auto;
}

.hero-container {
  max-width: var(--container-max);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}

.hero-content {
  flex: 1;
  min-width: 280px;
  max-width: 560px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  margin-bottom: 20px;
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.hero-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 800;
  color: var(--color-text);
  margin: 0 0 16px;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: clamp(17px, 2.5vw, 20px);
  color: var(--color-text-muted);
  margin: 0 0 28px;
  line-height: 1.6;
}

.hero-highlights {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.hero-highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.5;
}

.hero-highlight-item i {
  color: var(--color-success);
  margin-top: 3px;
  flex-shrink: 0;
}

.hero-action {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 12px;
}

.hero-btn {
  padding: 14px 32px;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-btn:hover {
  transform: translateY(-2px);
  background: var(--color-primary-dark);
}

.hero-btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  box-shadow: none;
}

.hero-btn-outline:hover {
  background: var(--color-primary-light);
}

.hero-note {
  font-size: 13px;
  color: var(--color-text-muted);
  margin: 0;
}

.hero-video-wrapper {
  flex: 1;
  min-width: 280px;
  display: flex;
  justify-content: center;
}

.hero-video-box {
  position: relative;
  width: 100%;
  max-width: 620px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--color-white);
  background: #000;
}

.hero-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  border: none;
  border-radius: 0;
  box-shadow: none;
  max-width: none;
}

.hero-video-play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.35);
  cursor: pointer;
  border: none;
  padding: 0;
  transition: background var(--transition);
}

.hero-video-play:hover {
  background: rgba(15, 23, 42, 0.5);
}

.hero-video-play.is-hidden {
  display: none;
}

.hero-video-play-icon {
  width: 72px;
  height: 72px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition);
}

.hero-video-play:hover .hero-video-play-icon {
  transform: scale(1.08);
}

.hero-video-play-icon i {
  font-size: 28px;
  color: var(--color-primary);
  margin-left: 4px;
}

@media (max-width: 900px) {
  .hero-section {
    padding: 48px 20px 56px;
  }

  .hero-container {
    flex-direction: column;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-tag {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-highlight-item {
    justify-content: center;
    text-align: left;
  }

  .hero-action {
    justify-content: center;
  }
}

/* ---- Trust bar ---- */
.trust-bar {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 20px 24px;
}

.trust-bar-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 32px 48px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
}

.trust-item i {
  color: var(--color-primary);
  font-size: 18px;
}

.trust-item strong {
  color: var(--color-text);
}

/* ---- White label strip ---- */
.white-label-strip {
  background:
    radial-gradient(circle at top left, rgba(255,255,255,0.18) 0%, transparent 28%),
    radial-gradient(circle at bottom right, rgba(255,255,255,0.12) 0%, transparent 26%),
    linear-gradient(90deg, #0f172a 0%, #1d4ed8 40%, #2563eb 70%, #60a5fa 100%);
  color: var(--color-white);
  padding: 34px 20px;
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.12), 0 10px 30px rgba(37, 99, 235, 0.18);
}

.white-label-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0.06), transparent 35%, transparent 65%, rgba(255,255,255,0.05));
  pointer-events: none;
}

.white-label-strip-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.white-label-strip-text {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 20px;
  font-weight: 700;
  flex: 1;
  min-width: 320px;
  line-height: 1.5;
}

.white-label-strip-text i {
  color: #fbbf24;
  font-size: 30px;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.28));
}

.white-label-strip-text strong {
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 0.5px;
}

.white-label-strip-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.white-label-tag {
  font-size: 14px;
  padding: 9px 16px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  white-space: nowrap;
  backdrop-filter: blur(8px);
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.12);
}

.white-label-strip-btn {
  background: linear-gradient(135deg, #ffffff 0%, #eff6ff 100%);
  color: #1d4ed8;
  border: none;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 900;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  font-family: inherit;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
}

.white-label-strip-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.26);
  background: linear-gradient(135deg, #ffffff 0%, #dbeafe 100%);
}

@media (max-width: 768px) {
  .white-label-strip {
    padding: 24px 16px;
  }

  .white-label-strip-inner {
    flex-direction: column;
    text-align: center;
    gap: 18px;
  }

  .white-label-strip-text {
    flex-direction: column;
    font-size: 17px;
    min-width: 0;
  }

  .white-label-strip-text strong {
    font-size: 18px;
  }

  .white-label-strip-tags {
    justify-content: center;
  }
}

/* ---- Register modal ---- */
.register {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 24px;
  overflow-y: auto;
}

.register.is-open {
  display: flex;
}

.register-div {
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: none !important;
  position: relative !important;
  left: auto !important;
  top: auto !important;
  text-align: left;
  padding: 0;
}

.register-header {
  padding: 24px 28px 16px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.register-header h2 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
}

.register-alert {
  font-size: 13px;
  color: var(--color-accent);
  line-height: 1.5;
  margin: 0;
}

.register-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  line-height: 1;
}

.register-close:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.register-body {
  padding: 20px 28px 28px;
}

.register-notice {
  background: var(--color-primary-light);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

.register-notice strong {
  color: var(--color-primary);
}

.register-field {
  margin-bottom: 16px;
}

.register-field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.register-field label .req {
  color: #ef4444;
  margin-right: 2px;
}

.register-inp {
  width: 100% !important;
  height: 44px !important;
  padding: 0 14px !important;
  text-indent: 0 !important;
  margin: 0 !important;
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-sm) !important;
  font-size: 15px !important;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.register-inp:focus {
  outline: none;
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.register-radio-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 4px;
}

.register-radio-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  font-size: 14px;
  cursor: pointer;
  margin: 0;
}

.register-radio-group input[type="radio"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
}

.register-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.sub-btn {
  flex: 1;
  height: 44px !important;
  margin: 0 !important;
  float: none !important;
  background: var(--color-primary) !important;
  font-size: 15px !important;
  border-radius: var(--radius-md) !important;
  border: none !important;
  color: var(--color-white) !important;
  cursor: pointer;
  font-weight: 600;
  font-family: inherit;
  transition: background var(--transition);
}

.sub-btn:hover {
  background: var(--color-primary-dark) !important;
}

.cel-btn {
  flex: 1;
  height: 44px !important;
  margin: 0 !important;
  float: none !important;
  background: var(--color-bg) !important;
  color: var(--color-text-muted) !important;
  font-size: 15px !important;
  border-radius: var(--radius-md) !important;
  border: 1px solid var(--color-border) !important;
  cursor: pointer;
  font-weight: 600;
  font-family: inherit;
}

.cel-btn:hover {
  background: var(--color-border) !important;
}

.register-txt1 {
  display: none;
}

@media (max-width: 640px) {
  .register {
    padding: 0;
    align-items: flex-end;
  }

  .register-div {
    max-width: 100%;
    max-height: 92vh;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }
}