/* ============================================
   酒便利官网 - 响应式设计
   Design System: Obsidian & Warm Amber
   ============================================ */

/* --- 1200px --- */
@media screen and (max-width: 1200px) {
  :root {
    --container-padding: 32px;
  }

  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
    gap: 32px;
  }

  .section-title {
    font-size: 34px;
  }
}

/* --- 992px (Tablet) --- */
@media screen and (max-width: 992px) {
  :root {
    --header-height: 70px;
  }

  /* Header */
  .header-nav {
    display: none;
  }

  .header-phone {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-drawer {
    display: block;
  }

  .nav-overlay {
    display: block;
  }

  /* Hero */
  .hero {
    height: 70vh;
    min-height: 480px;
  }

  .hero-title {
    font-size: 44px;
    letter-spacing: 6px;
  }

  .hero-subtitle {
    font-size: 16px;
    letter-spacing: 2px;
  }

  /* Feature Strip */
  .feature-strip {
    margin-top: -40px;
  }

  .feature-strip-inner {
    grid-template-columns: repeat(5, 1fr);
  }

  .feature-item {
    padding: 24px 8px;
  }

  .feature-name {
    font-size: 16px;
    letter-spacing: 2px;
  }

  .feature-desc {
    font-size: 11px;
    max-width: 110px;
  }

  .feature-icon {
    width: 40px;
    height: 40px;
  }

  /* Intro */
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .intro-image {
    order: -1;
  }

  .intro-stats {
    gap: 32px;
  }

  .stat-number {
    font-size: 38px;
  }

  /* Invest */
  .invest-cards {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .invest-card {
    padding: 36px 28px;
  }

  /* News */
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  /* Help */
  .help-services {
    gap: 32px;
  }

  .help-service-icon {
    width: 60px;
    height: 60px;
  }

  .help-service-icon img {
    width: 28px;
    height: 28px;
  }

  /* Help Tabs - 2x2 grid on tablet */
  .help-tabs {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .help-tab {
    padding: 20px 16px;
  }

  .help-tab-icon {
    width: 40px;
    height: 40px;
    font-size: 22px;
  }

  .help-tab-desc {
    display: none;
  }

  /* Help content */
  .help-content-inner {
    padding: 32px 28px;
  }

  /* Right Sidebar - hide on tablet */
  .right-sidebar {
    display: none;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .footer-hotline-inner {
    flex-direction: column;
    gap: 12px;
  }

  .footer-hotline-divider {
    width: 40px;
    height: 1px;
  }

  /* Sections */
  .section-title {
    font-size: 30px;
    letter-spacing: 2px;
  }

  .section-padding {
    padding: 48px 0;
  }

  .section-padding-lg {
    padding: 40px 0 48px;
  }

  /* Page content */
  .page-content {
    padding: 36px 0;
  }

  /* Page content */
  .page-content {
    padding: 48px 0;
  }

  /* Page - banner */
  .page-banner {
    height: auto;
  }

  .page-banner::before {
    padding-top: 35%;
  }

  .page-banner-title {
    font-size: 34px;
    letter-spacing: 4px;
  }

  /* Recruit */
  .recruit-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* News list */
  .news-item {
    flex-direction: column;
  }

  .news-item-img {
    width: 100%;
    height: 200px;
  }

  /* Article */
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
  }

  .article-main {
    padding: 32px;
  }

  .help-page-title {
    font-size: 26px;
  }

  /* Contact Page - 1 column on tablet */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .contact-card {
    padding: 32px 24px;
  }

  .contact-card h3 {
    font-size: 20px;
  }
}

/* --- 768px (Mobile) --- */
@media screen and (max-width: 768px) {
  :root {
    --container-padding: 20px;
  }

  .section-title {
    font-size: 26px;
  }

  .section-subtitle {
    font-size: 15px;
  }

  .section-padding {
    padding: 40px 0;
  }

  .section-padding-lg {
    padding: 40px 0 48px;
  }

  /* Page content */
  .page-content {
    padding: 36px 0;
  }

  /* Hero Mobile */
  .hero {
    height: 60vh;
    min-height: 420px;
  }

  .hero-title {
    font-size: 34px;
    letter-spacing: 4px;
    margin-bottom: 16px;
  }

  .hero-subtitle {
    font-size: 14px;
    letter-spacing: 1px;
  }

  .hero-subtitle span {
    margin: 0 6px;
  }

  .hero-disclaimer {
    font-size: 11px;
    padding: 0 20px;
  }

  .hero-scroll {
    display: none;
  }

  /* Feature Strip Mobile */
  .feature-strip {
    margin-top: -30px;
    border-radius: var(--radius-md);
  }

  .feature-strip-inner {
    grid-template-columns: repeat(3, 1fr);
  }

  .feature-item {
    padding: 20px 8px;
  }

  .feature-item:not(:last-child)::after {
    top: 20%;
    height: 60%;
  }

  /* Hide last 2 items' divider for 3-col wrap */
  .feature-item:nth-child(3)::after {
    display: none;
  }

  .feature-icon {
    width: 36px;
    height: 36px;
    margin-bottom: 10px;
  }

  .feature-name {
    font-size: 15px;
    letter-spacing: 2px;
  }

  .feature-desc {
    font-size: 11px;
    max-width: 100px;
  }

  /* Intro Mobile */
  .intro-section {
    padding: 60px 0;
  }

  .intro-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .intro-image {
    order: -1;
  }

  .intro-title {
    font-size: 30px;
    letter-spacing: 2px;
  }

  .intro-subtitle {
    font-size: 15px;
    margin-bottom: 24px;
  }

  .intro-stats {
    gap: 24px;
    margin-top: 28px;
    padding-top: 28px;
  }

  .stat-number {
    font-size: 34px;
  }

  .stat-label {
    font-size: 14px;
  }

  /* Invest Mobile */
  .invest-section {
    padding: 60px 0;
  }

  .invest-cards {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 40px;
  }

  .invest-card {
    padding: 32px 24px;
  }

  .invest-card-icon {
    width: 52px;
    height: 52px;
  }

  .invest-card-title {
    font-size: 20px;
    letter-spacing: 2px;
  }

  .invest-card-desc {
    font-size: 14px;
  }

  /* News Mobile */
  .news-section {
    padding: 60px 0;
  }

  .news-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 32px;
  }

  .news-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .news-card-img {
    height: 180px;
  }

  .news-card-body {
    padding: 16px;
  }

  /* Help Mobile */
  .help-section {
    padding: 60px 0;
  }

  .help-services {
    gap: 24px;
    flex-wrap: wrap;
  }

  .help-service-icon {
    width: 56px;
    height: 56px;
  }

  .help-service-icon img {
    width: 26px;
    height: 26px;
  }

  .help-service-name {
    font-size: 15px;
    letter-spacing: 2px;
  }

  /* Help Tabs Mobile - 2x2 grid */
  .help-tabs {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .help-tab {
    padding: 18px 12px;
    gap: 10px;
  }

  .help-tab-icon {
    width: 38px;
    height: 38px;
    font-size: 20px;
  }

  .help-tab-label {
    font-size: 15px;
  }

  .help-tab-desc {
    display: none;
  }

  /* Help Content Mobile */
  .help-content-inner {
    padding: 24px 20px;
  }

  .help-content-title-bar {
    flex-direction: column;
    text-align: center;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 20px;
  }

  .help-content-title-text h2 {
    font-size: 22px;
  }

  .help-page-title {
    font-size: 24px;
  }

  .region-section {
    padding: 20px;
  }

  /* Right Sidebar - hide on mobile */
  .right-sidebar {
    display: none;
  }

  /* Back to Top */
  .back-to-top {
    bottom: 24px;
    right: 24px;
    width: 40px;
    height: 40px;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-main {
    padding: 40px 0 24px;
  }

  .footer-qr {
    justify-content: center;
  }

  .footer-hotline {
    padding: 16px 0;
  }

  .footer-bottom-inner {
    flex-direction: column;
    gap: 8px;
  }

  /* Buttons */
  .btn {
    padding: 10px 28px;
    font-size: 15px;
  }

  /* Intro Section spacing override */
  .intro-section {
    padding: 60px 0;
  }

  /* Page Banner Mobile */
  .page-banner {
    height: auto;
  }

  .page-banner::before {
    padding-top: 45%;
  }

  .page-banner-bg {
    background-color: var(--color-primary);
  }

  .page-banner-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .page-banner-title {
    font-size: 30px;
    letter-spacing: 4px;
  }

  .recruit-card {
    padding: 28px 24px;
  }

  .benefit-tag {
    padding: 6px 16px;
    font-size: 14px;
  }

  /* News list mobile */
  .news-item {
    padding: 20px;
    gap: 20px;
  }

  .news-item-title {
    font-size: 18px;
  }

  /* Article mobile */
  .article-main {
    padding: 24px 16px;
  }

  .article-title {
    font-size: 24px;
  }
}

/* --- 480px (Small Mobile) --- */
@media screen and (max-width: 480px) {
  :root {
    --container-padding: 16px;
  }

  .section-title {
    font-size: 24px;
    letter-spacing: 1px;
  }

  .accent-line {
    margin: 16px auto 0;
  }

  /* Sections */
  .intro-section,
  .invest-section,
  .news-section,
  .help-section {
    padding: 40px 0;
  }

  .page-content {
    padding: 28px 0;
  }

  /* Hero */
  .hero {
    height: 55vh;
    min-height: 380px;
  }

  .hero-title {
    font-size: 28px;
    letter-spacing: 3px;
  }

  .hero-subtitle {
    font-size: 13px;
  }

  /* Feature Strip */
  .feature-strip-inner {
    grid-template-columns: repeat(3, 1fr);
  }

  .feature-item {
    padding: 16px 6px;
  }

  .feature-icon {
    width: 32px;
    height: 32px;
  }

  .feature-name {
    font-size: 14px;
    letter-spacing: 1px;
  }

  .feature-desc {
    font-size: 10px;
    max-width: 80px;
  }

  .feature-line {
    width: 20px;
  }

  /* Intro */
  .intro-title {
    font-size: 26px;
  }

  .intro-stats {
    gap: 20px;
  }

  .stat-number {
    font-size: 30px;
  }

  /* News */
  .news-card-img {
    height: 160px;
  }

  /* Help */
  .help-services {
    gap: 20px;
  }

  .help-service-icon {
    width: 48px;
    height: 48px;
  }

  .help-service-icon img {
    width: 24px;
    height: 24px;
  }

  .help-service-name {
    font-size: 14px;
    letter-spacing: 1px;
  }

  /* Footer */
  .footer-qr-item img {
    width: 80px;
    height: 80px;
  }

  .footer-hotline-item strong {
    font-size: 20px;
  }

  /* Page Banner */
  .page-banner {
    height: auto;
  }

  .page-banner::before {
    padding-top: 50%;
  }

  .page-banner-title {
    font-size: 26px;
    letter-spacing: 3px;
  }

  .page-banner-title-sub {
    font-size: 14px;
    letter-spacing: 2px;
  }

  /* Contact Page - Stack cards vertically on mobile */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 16px;
  }

  .contact-card {
    padding: 28px 20px;
  }

  .contact-card h3 {
    font-size: 20px;
  }

  .contact-card p {
    font-size: 15px;
  }

  .contact-card-icon {
    font-size: 42px;
    margin-bottom: 16px;
  }
}