/* ===== 在线定制工坊 Custom Studio ===== */

/* HERO */
.cs-hero {
  padding: 220px 5% 60px;
  background: linear-gradient(135deg, #FDFBF7 0%, #F5ECD7 100%);
  text-align: center;
}
.cs-hero-inner { max-width: 900px; margin: 0 auto; }
.cs-hero-label {
  font-size: 13px; letter-spacing: 4px; color: var(--gold);
  margin-bottom: 18px; text-transform: uppercase;
}
.cs-hero-title {
  font-size: 56px; font-weight: 800; line-height: 1.15;
  color: var(--text); margin-bottom: 22px; letter-spacing: 1px;
}
.cs-hero-title em { color: var(--gold); font-style: normal; }
.cs-hero-sub {
  font-size: 17px; color: var(--text2); line-height: 1.8;
  max-width: 760px; margin: 0 auto 32px;
}
.cs-hero-cta {
  display: inline-block; padding: 16px 44px;
  background: linear-gradient(135deg, #A07840 0%, #7A5A28 100%);
  color: #FDFBF7; font-size: 17px; font-weight: 700;
  letter-spacing: 1px; border-radius: 4px;
  box-shadow: 0 8px 26px rgba(122, 90, 40, 0.35);
  transition: transform 0.22s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.22s;
}
.cs-hero-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(122, 90, 40, 0.45); }

@media (max-width: 768px) {
  .cs-hero { padding: 180px 5% 40px; }
  .cs-hero-title { font-size: 36px; }
  .cs-hero-sub { font-size: 15px; }
}

/* 步骤指示器 */
.cs-steps {
  display: flex; justify-content: center; gap: 0;
  padding: 30px 5%; background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 170px; z-index: 50;
}
.cs-step {
  display: flex; align-items: center; gap: 10px;
  padding: 0 28px; color: var(--text3); font-size: 15px;
  position: relative; transition: color 0.25s;
}
.cs-step:not(:last-child)::after {
  content: ''; position: absolute; right: -10px; top: 50%;
  width: 20px; height: 1px; background: var(--border);
}
.cs-step-num {
  width: 32px; height: 32px; border-radius: 50%;
  border: 1.5px solid var(--text3); display: flex;
  align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px; transition: all 0.25s;
}
.cs-step.active { color: var(--gold); }
.cs-step.active .cs-step-num { background: var(--gold); color: #FDFBF7; border-color: var(--gold); }
.cs-step.done { color: var(--gold-dk); }
.cs-step.done .cs-step-num { background: var(--gold-lt); color: #FDFBF7; border-color: var(--gold-lt); }

@media (max-width: 768px) {
  .cs-steps { top: 0; padding: 16px 12px; flex-wrap: wrap; gap: 8px; }
  .cs-step { padding: 0 8px; font-size: 12px; }
  .cs-step-num { width: 26px; height: 26px; font-size: 12px; }
  .cs-step:not(:last-child)::after { display: none; }
}

/* 主流程 */
.cs-flow {
  padding: 50px 5% 80px; max-width: 980px; margin: 0 auto;
  min-height: 60vh;
}
.cs-panel {
  display: none; animation: cs-fade-in 0.4s ease;
  background: var(--white); border: 1px solid var(--border);
  border-radius: 14px; padding: 38px 40px;
  box-shadow: 0 4px 24px rgba(28, 18, 10, 0.04);
}
.cs-panel.active { display: block; }
.cs-panel-title { font-size: 26px; font-weight: 700; color: var(--text); margin-bottom: 8px; letter-spacing: 0.5px; }
.cs-panel-desc { font-size: 14px; color: var(--text2); margin-bottom: 26px; line-height: 1.7; }

@keyframes cs-fade-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 表单 */
.cs-form {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  margin-bottom: 24px;
}
.cs-field { display: flex; flex-direction: column; gap: 6px; }
.cs-field-full { grid-column: 1 / -1; }
.cs-label { font-size: 13px; color: var(--text2); font-weight: 500; }
.cs-input {
  height: 44px; padding: 0 14px;
  border: 1px solid var(--border); background: var(--bg);
  border-radius: 4px; font: inherit; font-size: 14px;
  color: var(--text); transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.cs-input:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(160, 120, 64, 0.12); }
.cs-textarea { height: auto; padding: 12px 14px; resize: vertical; min-height: 64px; line-height: 1.6; }
select.cs-input { cursor: pointer; }

@media (max-width: 768px) {
  .cs-flow { padding: 30px 4% 50px; }
  .cs-panel { padding: 24px 18px; }
  .cs-panel-title { font-size: 22px; }
  .cs-form { grid-template-columns: 1fr; }
}

/* 按钮 */
.cs-actions { margin-top: 28px; display: flex; justify-content: flex-end; gap: 12px; }
.cs-actions-row { justify-content: space-between; }
.cs-btn {
  padding: 12px 24px; border-radius: 4px; font-size: 15px;
  font-weight: 700; letter-spacing: 1px; cursor: pointer;
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1); border: 1px solid transparent;
}
.cs-btn-primary {
  background: linear-gradient(135deg, #A07840 0%, #7A5A28 100%);
  color: #FDFBF7; box-shadow: 0 4px 14px rgba(122, 90, 40, 0.28);
}
.cs-btn-primary:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(122, 90, 40, 0.4); }
.cs-btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.cs-btn-ghost { background: transparent; color: var(--text2); border-color: var(--border); }
.cs-btn-ghost:hover { color: var(--gold); border-color: var(--gold); }
.cs-btn-lg { padding: 14px 32px; font-size: 16px; }

/* 对话 */
.cs-chat {
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); padding: 18px; min-height: 360px;
  max-height: 480px; overflow-y: auto; margin-bottom: 16px;
}
.cs-msg { margin-bottom: 16px; display: flex; gap: 12px; align-items: flex-start; animation: cs-fade-in 0.3s ease; }
.cs-msg-avatar {
  width: 36px; height: 36px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700;
}
.cs-msg-bot .cs-msg-avatar { background: linear-gradient(135deg, #C8A97A 0%, #A07840 100%); color: #FDFBF7; }
.cs-msg-user .cs-msg-avatar { background: var(--dark); color: #C8A97A; }
.cs-msg-body {
  flex: 1; background: var(--white); padding: 12px 16px;
  border-radius: 10px; border: 1px solid var(--border);
  font-size: 14px; line-height: 1.7; color: var(--text); white-space: pre-wrap;
}
.cs-msg-user { flex-direction: row-reverse; }
.cs-msg-user .cs-msg-body { background: linear-gradient(135deg, #1C120A 0%, #2C1A0A 100%); color: #FDFBF7; border-color: transparent; }
.cs-typing { font-style: italic; color: var(--text3); }

.cs-chat-input {
  display: flex; gap: 10px; align-items: stretch; margin-bottom: 12px;
}
.cs-chat-input textarea { flex: 1; min-height: 56px; }
.cs-chat-input button { flex-shrink: 0; align-self: stretch; }

/* 图片卡 */
.cs-image-card {
  border: 1px solid var(--border); border-radius: 12px;
  background: var(--bg); padding: 24px; margin-bottom: 14px;
  min-height: 360px; display: flex; align-items: center; justify-content: center;
}
.cs-image-placeholder { text-align: center; color: var(--text3); }
.cs-image-icon { font-size: 56px; margin-bottom: 16px; opacity: 0.5; }
.cs-image-card img { max-width: 100%; max-height: 520px; border-radius: 8px; box-shadow: 0 8px 24px rgba(28, 18, 10, 0.12); }
.cs-image-card.loading::before {
  content: '🎨 AI 渲染中，约 8-15 秒…';
  color: var(--text2); font-size: 14px;
}

/* 创意卡 */
.cs-card-wrap { margin-bottom: 32px; }
.cs-card {
  background: linear-gradient(135deg, #FFFFFF 0%, #F5ECD7 100%);
  border: 1px solid var(--gold-lt); border-radius: 14px;
  padding: 32px; box-shadow: 0 12px 36px rgba(122, 90, 40, 0.15);
  position: relative; overflow: hidden;
}
.cs-card::before {
  content: 'HANDY · CREATIVE CARD';
  position: absolute; top: 14px; right: 18px;
  font-size: 10px; letter-spacing: 3px; color: var(--gold-lt);
}
.cs-card-loading { text-align: center; padding: 40px 0; color: var(--text3); font-size: 15px; }
.cs-card-name { font-size: 32px; font-weight: 800; color: var(--text); margin-bottom: 6px; letter-spacing: 1px; }
.cs-card-tagline { font-size: 16px; color: var(--gold); font-style: italic; margin-bottom: 18px; }
.cs-card-desc { font-size: 14px; color: var(--text2); line-height: 1.8; margin-bottom: 22px; padding: 14px 16px; background: rgba(255, 255, 255, 0.6); border-radius: 6px; border-left: 3px solid var(--gold); }
.cs-card-layers { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 18px; }
.cs-card-layer { background: var(--white); padding: 12px 14px; border-radius: 6px; border: 1px solid var(--border); }
.cs-card-layer-name { font-size: 11px; letter-spacing: 2px; color: var(--gold-dk); margin-bottom: 4px; text-transform: uppercase; }
.cs-card-layer-body { font-size: 13px; color: var(--text); line-height: 1.6; }
.cs-card-foot { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; font-size: 13px; color: var(--text2); }
.cs-card-foot strong { color: var(--text); }
@media (max-width: 768px) {
  .cs-card { padding: 22px 18px; }
  .cs-card-name { font-size: 26px; }
  .cs-card-layers, .cs-card-foot { grid-template-columns: 1fr; }
}

/* 联系表单 */
.cs-contact {
  margin-top: 32px; padding-top: 28px; border-top: 1px dashed var(--border);
}

/* 成功 */
.cs-success { text-align: center; padding: 50px 20px; }
.cs-success-icon { font-size: 64px; margin-bottom: 16px; }
.cs-success h3 { font-size: 28px; color: var(--text); margin-bottom: 12px; }
.cs-success p { color: var(--text2); font-size: 15px; margin-bottom: 8px; }

/* Toast */
.cs-toast {
  position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%);
  background: var(--dark); color: #FDFBF7; padding: 12px 22px;
  border-radius: 4px; font-size: 14px; z-index: 9999;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2); opacity: 0;
  transition: opacity 0.25s, transform 0.25s; pointer-events: none;
}
.cs-toast.show { opacity: 1; transform: translateX(-50%) translateY(-6px); }
.cs-toast.error { background: #b91c1c; }