:root {
  --bg: #f4efe6;
  --bg-deep: #ede5d7;
  --ink: #1f1a14;
  --ink-soft: #4e453c;
  --accent: #d45b2a;
  --accent-soft: #f0c9b7;
  --cool: #1c6f64;
  --card: rgba(255, 255, 255, 0.72);
  --card-strong: #ffffff;
  --line: rgba(31, 26, 20, 0.15);
  --shadow: 0 24px 60px rgba(31, 26, 20, 0.12);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans SC", "PingFang SC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 20%, #f7d9c4 0%, transparent 45%),
    radial-gradient(circle at 80% 10%, #d7efe9 0%, transparent 40%),
    linear-gradient(120deg, var(--bg) 0%, var(--bg-deep) 100%);
  padding: 40px 6vw 60px;
  position: relative;
  overflow-x: hidden;
}

.glow {
  position: absolute;
  top: -120px;
  right: -160px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(212, 91, 42, 0.25) 0%, transparent 70%);
  filter: blur(1px);
  z-index: 0;
}

main,
header,
footer {
  position: relative;
  z-index: 1;
}

.auth-gate {
  position: relative;
  z-index: 1;
  min-height: calc(100vh - 80px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 32px;
  align-items: center;
}

.auth-card,
.topbar {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.64);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.auth-card {
  padding: 28px;
}

.auth-tabs {
  display: inline-flex;
  padding: 5px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: rgba(31, 26, 20, 0.08);
}

.auth-tab {
  border: none;
  border-radius: 999px;
  padding: 8px 18px;
  background: transparent;
  color: var(--ink-soft);
  font-weight: 700;
  cursor: pointer;
}

.auth-tab.active {
  background: #fff;
  color: var(--ink);
}

.auth-form {
  display: grid;
  gap: 16px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 18px;
  margin-bottom: 34px;
}

.brand-link,
.user-menu {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-link {
  font-weight: 800;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--cool), #2a8f82);
}

.user-menu {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

h1,
h2,
h3 {
  font-family: "ZCOOL XiaoWei", "Noto Sans SC", sans-serif;
  margin: 0 0 12px;
}

h1 {
  font-size: clamp(2.6rem, 3.5vw, 3.6rem);
}

h2 {
  font-size: clamp(2rem, 2.6vw, 2.6rem);
}

h3 {
  font-size: 1.4rem;
}

p {
  margin: 0;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--cool);
  font-weight: 600;
}

.lead {
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 560px;
  line-height: 1.7;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  align-items: center;
  margin-bottom: 60px;
}

.hero-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px 30px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 18px;
  margin-bottom: 18px;
}

.hero-stats .label {
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.hero-stats .value {
  font-size: 1.2rem;
  font-weight: 600;
}

.hero-note {
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 1.6;
}

.section {
  margin-bottom: 56px;
}

.section-title {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 28px;
}

/* ===== 工具卡片网格 ===== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

/* ===== 工具卡片样式 ===== */
.tool-card {
  position: relative;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(31, 26, 20, 0.06);
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.tool-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(31, 26, 20, 0.12);
  border-color: var(--accent-soft);
}

.tool-card:hover .tool-preview {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.tool-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 20px 20px 0;
}

.tool-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--cool) 0%, #2a8f82 100%);
  display: grid;
  place-items: center;
  color: #fff;
  box-shadow: 0 8px 20px rgba(28, 111, 100, 0.25);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tool-icon svg {
  width: 26px;
  height: 26px;
}

.tool-card:hover .tool-icon {
  transform: scale(1.08);
  box-shadow: 0 12px 28px rgba(28, 111, 100, 0.35);
}

.tool-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 20px;
  background: rgba(28, 111, 100, 0.1);
  color: var(--cool);
}

.tool-status.online .status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cool);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.tool-card-body {
  padding: 16px 20px;
}

.tool-card-body h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
  transition: color 0.3s ease;
}

.tool-card:hover .tool-card-body h3 {
  color: var(--accent);
}

.tool-card-body p {
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.tag-api {
  background: rgba(212, 91, 42, 0.12);
  color: var(--accent);
}

.tag-batch {
  background: rgba(28, 111, 100, 0.12);
  color: var(--cool);
}

.tag-coming {
  background: rgba(31, 26, 20, 0.08);
  color: var(--ink-soft);
}

.tool-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.5);
}

.tool-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.tool-meta svg {
  opacity: 0.6;
}

.tool-enter-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
}

.tool-enter-btn:hover {
  background: var(--accent);
  color: #fff;
}

.tool-enter-btn svg {
  transition: transform 0.25s ease;
}

.tool-enter-btn:hover svg {
  transform: translateX(3px);
}

/* ===== 悬停预览层 ===== */
.tool-preview {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(255, 255, 255, 0.98) 70%, rgba(255, 255, 255, 0.9));
  backdrop-filter: blur(8px);
  padding: 20px;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  border-top: 1px solid var(--line);
}

.preview-features {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.preview-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--ink);
}

.preview-feature svg {
  color: var(--cool);
  flex-shrink: 0;
}

.preview-detail-btn {
  width: 100%;
  background: var(--ink);
  color: #fff;
  border: none;
  padding: 12px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
}

.preview-detail-btn:hover {
  background: var(--accent);
  transform: scale(1.02);
}

/* ===== 占位卡片 ===== */
.tool-card-placeholder {
  border-style: dashed;
  border-color: rgba(31, 26, 20, 0.2);
  background: rgba(255, 255, 255, 0.4);
  cursor: default;
}

.tool-card-placeholder:hover {
  transform: none;
  box-shadow: 0 8px 24px rgba(31, 26, 20, 0.06);
  border-color: rgba(31, 26, 20, 0.2);
}

.tool-card-placeholder .placeholder-icon {
  background: rgba(31, 26, 20, 0.1);
  box-shadow: none;
  color: var(--ink-soft);
}

.tool-card-placeholder h3 {
  color: var(--ink-soft);
}

.tool-card-placeholder p {
  color: var(--ink-soft);
  opacity: 0.7;
}

/* ===== 模态框样式 ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(31, 26, 20, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  padding: 20px;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--card-strong);
  border-radius: 20px;
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 32px 80px rgba(31, 26, 20, 0.25);
  transform: scale(0.95) translateY(20px);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(31, 26, 20, 0.08);
  color: var(--ink);
  font-size: 24px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all 0.25s ease;
  z-index: 10;
}

.modal-close:hover {
  background: rgba(212, 91, 42, 0.15);
  color: var(--accent);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 28px 28px 0;
}

.modal-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--cool) 0%, #2a8f82 100%);
  display: grid;
  place-items: center;
  color: #fff;
  box-shadow: 0 12px 28px rgba(28, 111, 100, 0.3);
  flex-shrink: 0;
}

.modal-icon svg {
  width: 32px;
  height: 32px;
}

.modal-title-group {
  flex: 1;
  padding-top: 4px;
}

.modal-title-group h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.modal-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.modal-body {
  padding: 24px 28px;
}

.modal-desc {
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.modal-features {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
  padding: 18px;
  background: rgba(28, 111, 100, 0.05);
  border-radius: 12px;
}

.modal-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
}

.modal-feature svg {
  color: var(--cool);
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

.modal-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.info-label {
  font-size: 0.75rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.info-value {
  font-size: 0.95rem;
  font-weight: 600;
}

.status-online {
  color: var(--cool);
}

.modal-footer {
  display: flex;
  gap: 12px;
  padding: 20px 28px 28px;
}

.modal-footer button {
  flex: 1;
  padding: 14px 20px;
  font-size: 0.95rem;
}

.modal-footer .primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

/* 旧版 grid 兼容（可选保留） */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 22px;
  border: 1px solid var(--line);
  box-shadow: 0 18px 32px rgba(31, 26, 20, 0.08);
}

.card-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: rgba(28, 111, 100, 0.12);
  display: grid;
  place-items: center;
  font-weight: 700;
  color: var(--cool);
  margin-bottom: 16px;
}

.card button,
button.primary,
button.ghost {
  font-family: "Noto Sans SC", sans-serif;
  border: none;
  cursor: pointer;
  border-radius: 999px;
  padding: 10px 20px;
  font-size: 0.95rem;
}

button.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 24px rgba(212, 91, 42, 0.25);
}

button.ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(212, 91, 42, 0.4);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.card h3 {
  margin-bottom: 8px;
}

.card p {
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: 18px;
}

.tool-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.tab {
  background: rgba(31, 26, 20, 0.08);
  color: var(--ink);
  padding: 8px 16px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-weight: 600;
}

.tab.active {
  background: var(--ink);
  color: #fff;
}

.panel {
  display: grid;
  gap: 20px;
}

.panel.hidden {
  display: none;
}

.form {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

input,
select {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 0.95rem;
  background: rgba(255, 255, 255, 0.9);
}

.hint {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.result {
  min-height: 120px;
}

.result-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
  font-size: 0.9rem;
}

.result-list li {
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
}

.preview {
  display: grid;
  gap: 18px;
}

.progress {
  display: grid;
  gap: 8px;
}

.progress-track {
  height: 10px;
  border-radius: 999px;
  background: rgba(31, 26, 20, 0.1);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--cool), var(--accent));
  transition: width 0.4s ease;
}

.preview-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.selectors {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.field-selector {
  display: grid;
  gap: 12px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
}

.field-grid label {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.7);
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--line);
}

.preview-table,
.table-wrap {
  overflow: auto;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.8);
}

.table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
  font-size: 0.9rem;
}

.table th,
.table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.table th {
  position: sticky;
  top: 0;
  background: rgba(244, 239, 230, 0.95);
  font-weight: 600;
}

.table td[contenteditable="true"] {
  background: #fff7ef;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.actions {
  display: flex;
  gap: 10px;
}

.muted {
  color: var(--ink-soft);
}

.footer {
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.85rem;
  margin-top: 50px;
}

.hidden {
  display: none;
}

[data-animate] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.is-ready [data-animate] {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 720px) {
  body {
    padding: 28px 6vw 50px;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .auth-gate {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-card {
    padding: 24px;
  }

  .tool-tabs {
    flex-wrap: wrap;
  }

  .result-header {
    align-items: flex-start;
  }

  /* 工具卡片响应式 */
  .tools-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .tool-card {
    border-radius: 14px;
  }

  .tool-card-header {
    padding: 16px 16px 0;
  }

  .tool-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
  }

  .tool-icon svg {
    width: 22px;
    height: 22px;
  }

  .tool-card-body {
    padding: 14px 16px;
  }

  .tool-card-body h3 {
    font-size: 1.15rem;
  }

  .tool-card-footer {
    padding: 12px 16px;
  }

  .tool-preview {
    padding: 16px;
  }

  /* 模态框响应式 */
  .modal-overlay {
    padding: 16px;
    align-items: flex-end;
  }

  .modal {
    border-radius: 20px 20px 0 0;
    max-height: 85vh;
  }

  .modal-header {
    padding: 24px 20px 0;
    gap: 14px;
  }

  .modal-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
  }

  .modal-icon svg {
    width: 26px;
    height: 26px;
  }

  .modal-title-group h3 {
    font-size: 1.3rem;
  }

  .modal-body {
    padding: 20px;
  }

  .modal-features {
    padding: 14px;
  }

  .modal-info {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .modal-footer {
    padding: 16px 20px 24px;
    flex-direction: column;
  }

  .modal-footer button {
    width: 100%;
  }
}