/* style/login.css */
/* body 已 padding-top: var(--header-offset)；页面禁止再写该变量 */

:root {
  --page-login-primary-color: #11A84E;
  --page-login-secondary-color: #22C768;
  --page-login-bg-color: #08160F;
  --page-login-card-bg: #11271B;
  --page-login-text-main: #F2FFF6;
  --page-login-text-secondary: #A7D9B8;
  --page-login-border-color: #2E7A4E;
  --page-login-glow-color: #57E38D;
  --page-login-gold-color: #F2C14E;
  --page-login-divider-color: #1E3A2A;
  --page-login-deep-green-color: #0A4B2C;
}

.page-login {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--page-login-text-main); /* Default text color for the page */
  background-color: var(--page-login-bg-color);
}

.page-login__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-login__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0 60px 0; /* Minimal top padding, body handles header offset */
  background-color: var(--page-login-bg-color);
}

.page-login__hero-image-wrapper {
  width: 100%;
  max-height: 600px;
  overflow: hidden;
  position: relative;
}

.page-login__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: brightness(0.6); /* Slightly darken image for text readability */
}

.page-login__hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  max-width: 800px;
  text-align: center;
  padding: 20px;
  box-sizing: border-box;
  z-index: 10; /* Ensure content is above image */
}

.page-login__main-title {
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--page-login-text-main);
  margin-bottom: 20px;
  max-width: 100%;
  font-size: clamp(2.2rem, 4vw, 3.5rem);
}

.page-login__description {
  font-size: 1.1em;
  color: var(--page-login-text-secondary);
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.page-login__login-form-wrapper {
  background-color: rgba(17, 39, 27, 0.9); /* Card BG with transparency */
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  max-width: 400px;
  margin: 0 auto 20px auto;
  border: 1px solid var(--page-login-border-color);
}

.page-login__form-group {
  margin-bottom: 20px;
  text-align: left;
}

.page-login__form-label {
  display: block;
  margin-bottom: 8px;
  color: var(--page-login-text-main);
  font-weight: bold;
}

.page-login__form-input {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--page-login-border-color);
  border-radius: 5px;
  background-color: var(--page-login-deep-green-color);
  color: var(--page-login-text-main);
  font-size: 1em;
  box-sizing: border-box;
}

.page-login__form-input::placeholder {
  color: var(--page-login-text-secondary);
  opacity: 0.7;
}

.page-login__form-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 25px;
}

.page-login__login-button {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  padding: 12px 25px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s ease;
  border: none;
  cursor: pointer;
  display: inline-block;
  text-align: center;
}

.page-login__login-button:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
}

.page-login__forgot-password {
  color: var(--page-login-text-secondary);
  text-decoration: none;
  font-size: 0.9em;
  transition: color 0.3s ease;
}

.page-login__forgot-password:hover {
  color: var(--page-login-primary-color);
}

.page-login__register-prompt {
  color: var(--page-login-text-secondary);
  margin-top: 20px;
  font-size: 0.95em;
}

.page-login__register-link {
  color: var(--page-login-glow-color);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

.page-login__register-link:hover {
  color: var(--page-login-gold-color);
}

.page-login__hero-video-wrapper {
  width: 100%;
  max-width: 800px;
  margin: 30px auto 0 auto;
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.5);
  cursor: pointer;
}

.page-login__hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-login__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: var(--page-login-text-main);
  text-align: center;
  margin-bottom: 30px;
  font-weight: bold;
  line-height: 1.3;
}

.page-login__text-secondary {
  color: var(--page-login-text-secondary);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px auto;
  font-size: 1.05em;
}

.page-login__benefits-section,
.page-login__guide-section,
.page-login__troubleshooting-section,
.page-login__faq-section,
.page-login__cta-section {
  padding: 80px 0;
}

.page-login__dark-section {
  background-color: var(--page-login-bg-color);
  color: var(--page-login-text-main);
}

.page-login__benefits-grid,
.page-login__troubleshooting-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-login__benefit-card,
.page-login__trouble-item {
  background-color: var(--page-login-card-bg);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  border: 1px solid var(--page-login-border-color);
}

.page-login__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-login__card-title,
.page-login__trouble-title {
  font-size: 1.5em;
  color: var(--page-login-text-main);
  margin-bottom: 15px;
  font-weight: bold;
}

.page-login__card-description,
.page-login__trouble-description {
  color: var(--page-login-text-secondary);
  font-size: 0.95em;
  line-height: 1.5;
}

.page-login__btn-secondary {
  background-color: transparent;
  color: var(--page-login-primary-color);
  border: 2px solid var(--page-login-primary-color);
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  display: inline-block;
  margin-top: 20px;
}

.page-login__btn-secondary:hover {
  background-color: var(--page-login-primary-color);
  color: #ffffff;
}

.page-login__guide-steps {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.page-login__step-item {
  flex: 1;
  min-width: 280px;
  max-width: 350px;
  text-align: center;
  background-color: var(--page-login-card-bg);
  padding: 30px;
  border-radius: 10px;
  border: 1px solid var(--page-login-border-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-login__step-number {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 50px;
  height: 50px;
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  border-radius: 50%;
  color: #ffffff;
  font-size: 1.8em;
  font-weight: bold;
  margin-bottom: 20px;
}

.page-login__step-title {
  font-size: 1.4em;
  color: var(--page-login-text-main);
  margin-bottom: 10px;
  font-weight: bold;
}

.page-login__step-description {
  color: var(--page-login-text-secondary);
  font-size: 0.95em;
}

.page-login__faq-list {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-login__faq-item {
  background-color: var(--page-login-card-bg);
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid var(--page-login-border-color);
  overflow: hidden;
}

.page-login__faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  color: var(--page-login-text-main);
  font-weight: bold;
  font-size: 1.1em;
  transition: background-color 0.3s ease;
}

.page-login__faq-item summary::-webkit-details-marker {
  display: none;
}

.page-login__faq-item summary:hover {
  background-color: rgba(var(--page-login-primary-color), 0.1);
}

.page-login__faq-qtext {
  flex-grow: 1;
}

.page-login__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: var(--page-login-glow-color);
}

.page-login__faq-item[open] .page-login__faq-toggle {
  content: '−';
}

.page-login__faq-answer {
  padding: 15px 25px 20px 25px;
  color: var(--page-login-text-secondary);
  font-size: 0.95em;
  line-height: 1.6;
  border-top: 1px solid var(--page-login-divider-color);
}

.page-login__faq-answer p {
  margin-bottom: 10px;
}

.page-login__btn-link {
  color: var(--page-login-glow-color);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

.page-login__btn-link:hover {
  color: var(--page-login-gold-color);
}

.page-login__cta-section {
  text-align: center;
  padding: 80px 0;
  background-color: var(--page-login-deep-green-color);
}

.page-login__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.page-login__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: background 0.3s ease, transform 0.2s ease;
  border: none;
  cursor: pointer;
  display: inline-block;
  text-align: center;
}

.page-login__btn-primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  transform: translateY(-2px);
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
  .page-login__hero-content {
    max-width: 600px;
  }
  .page-login__main-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }
  .page-login__hero-video-wrapper {
    max-width: 600px;
  }
}

@media (max-width: 768px) {
  .page-login__container {
    padding: 0 15px;
  }

  .page-login__hero-section {
    padding: 10px 0 40px 0;
  }

  .page-login__hero-content {
    position: static;
    transform: none;
    padding: 20px 15px;
    width: 100%;
    max-width: none;
  }

  .page-login__hero-image-wrapper {
    max-height: 300px;
  }

  .page-login__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
    margin-bottom: 15px;
  }

  .page-login__description {
    font-size: 1em;
    margin-bottom: 20px;
  }

  .page-login__login-form-wrapper {
    padding: 20px;
    max-width: 100%;
  }

  .page-login__form-actions {
    flex-direction: column;
    gap: 15px;
    align-items: stretch;
  }

  .page-login__login-button,
  .page-login__forgot-password {
    width: 100%;
    box-sizing: border-box;
  }

  .page-login__hero-video-wrapper {
    max-width: 100%;
    margin-top: 20px;
  }

  .page-login__section-title {
    font-size: clamp(1.6rem, 5vw, 2.2rem);
    margin-bottom: 25px;
  }

  .page-login__text-secondary {
    font-size: 0.95em;
    margin-bottom: 30px;
  }

  .page-login__benefits-section,
  .page-login__guide-section,
  .page-login__troubleshooting-section,
  .page-login__faq-section,
  .page-login__cta-section {
    padding: 50px 0;
  }

  .page-login__benefits-grid,
  .page-login__troubleshooting-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .page-login__guide-steps {
    flex-direction: column;
    align-items: center;
    gap: 25px;
  }

  .page-login__step-item {
    max-width: 100%;
    min-width: unset;
  }

  .page-login__faq-item summary {
    padding: 15px 20px;
    font-size: 1em;
  }

  .page-login__faq-answer {
    padding: 10px 20px 15px 20px;
    font-size: 0.9em;
  }

  .page-login__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }

  .page-login__btn-primary,
  .page-login__btn-secondary {
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Mobile image responsiveness */
  .page-login img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  /* Mobile video responsiveness */
  .page-login video,
  .page-login__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-login__video-section,
  .page-login__video-container,
  .page-login__video-wrapper,
  .page-login__section,
  .page-login__card,
  .page-login__container,
  .page-login__cta-buttons {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }

  .page-login__video-section {
    padding-top: 10px !important; /* body 已承担 --header-offset，此处禁止 var(--header-offset) */
  }
}

@media (max-width: 480px) {
  .page-login__main-title {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
  }
  .page-login__section-title {
    font-size: clamp(1.4rem, 6vw, 2rem);
  }
  .page-login__login-button {
    font-size: 1em;
    padding: 10px 20px;
  }
  .page-login__forgot-password {
    font-size: 0.85em;
  }
}