/* ═══════════════════════════════════════════════════════════
   满意解研究所 · SRI 通用组件样式 v2.0
   
   所有页面引用此文件获得标准UI组件
   引用方式: <link rel="stylesheet" href="/assets/css/sri-components.css">
   
   依赖: sri-tokens.css (必须先加载)
   ═══════════════════════════════════════════════════════════ */

/* ── 基础重置 ── */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--sri-font-family, sans-serif);
  font-size: var(--sri-font-size-body, 15px);
  line-height: var(--sri-line-height, 1.6);
  color: var(--sri-color-text-primary, #333);
  background-color: var(--sri-color-surface, #F5F0E6);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── 排版 ── */
h1, h2, h3, h4, h5, h6 {
  color: var(--sri-heading-color, var(--sri-color-text-primary));
  font-weight: var(--sri-heading-weight, 700);
  line-height: var(--sri-line-height-tight, 1.2);
  margin: 0 0 var(--sri-paragraph-spacing, 8px) 0;
}

h1 { font-size: var(--sri-font-size-h1, 40px); }
h2 { font-size: var(--sri-font-size-h2, 32px); }
h3 { font-size: var(--sri-font-size-h3, 24px); }
h4 { font-size: var(--sri-font-size-h4, 20px); }
h5 { font-size: var(--sri-font-size-h5, 17px); }
h6 { font-size: var(--sri-font-size-h6, 15px); }

p { margin: 0 0 var(--sri-paragraph-spacing, 8px) 0; }

a {
  color: var(--sri-color-text-link, #1565C0);
  text-decoration: none;
  transition: color var(--sri-transition-fast, 0.15s ease);
}
a:hover { color: var(--sri-color-primary-hover, #A31D15); }

img { max-width: 100%; height: auto; }

/* ── 按钮 ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sri-prim-space-xs, 4px);
  padding: var(--sri-btn-padding-y, 8px) var(--sri-btn-padding-x, 16px);
  border: 2px solid var(--sri-btn-secondary-border, #ccc);
  border-radius: var(--sri-btn-radius, 8px);
  background: var(--sri-btn-secondary-bg, #fff);
  color: var(--sri-btn-secondary-color, #333);
  font-size: var(--sri-btn-font-size, 14px);
  font-weight: var(--sri-btn-font-weight, 500);
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: all var(--sri-transition-fast, 0.15s ease);
  user-select: none;
  white-space: nowrap;
}

.btn:hover {
  border-color: var(--sri-color-primary, #8B4513);
  color: var(--sri-color-primary, #8B4513);
  background: var(--sri-color-primary-light, #FBE5E0);
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: var(--sri-btn-disabled-opacity, 0.5);
  cursor: not-allowed;
  transform: none;
}

.btn:focus-visible {
  outline: 2px solid var(--sri-color-border-focus, #8B4513);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--sri-btn-primary-bg, #8B4513);
  color: var(--sri-btn-primary-color, #fff);
  border-color: var(--sri-btn-primary-bg, #8B4513);
}

.btn-primary:hover {
  background: var(--sri-btn-primary-hover-bg, #A31D15);
  border-color: var(--sri-btn-primary-hover-bg, #A31D15);
  color: #fff;
}

.btn-sm {
  padding: var(--sri-prim-space-xs, 4px) var(--sri-prim-space-sm, 8px);
  font-size: var(--sri-prim-font-size-xs, 11px);
}

.btn-lg {
  padding: var(--sri-prim-space-md, 12px) var(--sri-prim-space-xl, 32px);
  font-size: var(--sri-prim-font-size-md, 16px);
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--sri-color-text-secondary, #666);
}
.btn-ghost:hover {
  background: var(--sri-color-surface-alt, #DDD);
  border-color: transparent;
  color: var(--sri-color-text-primary, #333);
}

/* ── 卡片 ── */
.card {
  background: var(--sri-card-bg, #fff);
  border-radius: var(--sri-card-radius, 12px);
  box-shadow: var(--sri-card-shadow, 0 2px 8px rgba(0,0,0,0.06));
  padding: var(--sri-card-padding, 24px);
  margin-bottom: var(--sri-space-gap, 8px);
}

.card-hover:hover {
  box-shadow: var(--sri-shadow-dropdown, 0 4px 16px rgba(0,0,0,0.08));
  transform: translateY(-2px);
  transition: all var(--sri-transition-fast, 0.15s ease);
}

/* ── 弹窗 ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--sri-modal-overlay, rgba(0,0,0,0.5));
  z-index: var(--sri-modal-z-index, 9999);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sri-prim-space-md, 16px);
}

.modal-overlay > * {
  background: var(--sri-modal-bg, #fff);
  border-radius: var(--sri-modal-radius, 12px);
  box-shadow: var(--sri-modal-shadow, 0 8px 32px rgba(0,0,0,0.12));
  padding: var(--sri-modal-padding, 24px);
  max-width: var(--sri-modal-max-width, 640px);
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  border: none;
  background: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--sri-color-text-muted, #888);
  padding: 4px 8px;
  border-radius: var(--sri-radius-sm, 4px);
}
.modal-close:hover {
  background: var(--sri-color-surface-alt, #DDD);
  color: var(--sri-color-text-primary, #333);
}

/* ── 标签 ── */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: var(--sri-prim-radius-full, 9999px);
  font-size: var(--sri-prim-font-size-xs, 11px);
  font-weight: var(--sri-font-weight-medium, 500);
  white-space: nowrap;
}

.tag-red    { background: var(--sri-color-error-bg, #FBE5E0); color: var(--sri-color-error, #8B4513); }
.tag-gold   { background: var(--sri-color-secondary-light, #F7EEC0); color: var(--sri-color-secondary, #D4A574); }
.tag-green  { background: var(--sri-color-success-bg, #E8F5E9); color: var(--sri-color-success, #2E7D32); }
.tag-blue   { background: var(--sri-color-info-bg, #E3F2FD); color: var(--sri-color-info, #1565C0); }
.tag-purple { background: var(--sri-color-purple-bg, #F3E5F5); color: var(--sri-color-purple, #7B1FA2); }

/* ── 进度条 ── */
.progress-bar {
  width: 100%;
  height: 4px;
  background: var(--sri-color-border-light, #E0E0E0);
  border-radius: 2px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--sri-color-primary, #8B4513);
  border-radius: 2px;
  transition: width var(--sri-transition-slow, 0.4s ease);
}

/* ── 输入框 ── */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="search"],
input[type="tel"],
input[type="url"],
input[type="date"],
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  padding: var(--sri-input-padding, 8px 16px);
  border: 2px solid var(--sri-input-border, #ccc);
  border-radius: var(--sri-input-radius, 8px);
  background: var(--sri-input-bg, #fff);
  color: var(--sri-color-text-primary, #333);
  transition: border-color var(--sri-transition-fast, 0.15s ease);
  outline: none;
  width: 100%;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--sri-input-focus-border, #8B4513);
  box-shadow: 0 0 0 3px var(--sri-color-primary-light, #FBE5E0);
}

::placeholder {
  color: var(--sri-color-text-muted, #aaa);
}

/* ── 布局工具 ── */
.container {
  max-width: var(--sri-max-width, 1000px);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--sri-space-padding, 16px);
  padding-right: var(--sri-space-padding, 16px);
}

.container-wide {
  max-width: var(--sri-max-width-wide, 1200px);
}

.container-narrow {
  max-width: var(--sri-max-width-narrow, 720px);
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--sri-prim-space-sm, 8px); }
.gap-md { gap: var(--sri-prim-space-md, 16px); }
.gap-lg { gap: var(--sri-prim-space-lg, 24px); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sri-prim-space-md, 16px); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sri-prim-space-md, 16px); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sri-prim-space-md, 16px); }

@media (max-width: 768px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--sri-color-text-muted, #888); }
.text-small { font-size: var(--sri-font-size-small, 13px); }

.mt-sm { margin-top: var(--sri-prim-space-sm, 8px); }
.mt-md { margin-top: var(--sri-prim-space-md, 16px); }
.mt-lg { margin-top: var(--sri-prim-space-lg, 24px); }
.mt-xl { margin-top: var(--sri-prim-space-xl, 32px); }
.mb-sm { margin-bottom: var(--sri-prim-space-sm, 8px); }
.mb-md { margin-bottom: var(--sri-prim-space-md, 16px); }
.mb-lg { margin-bottom: var(--sri-prim-space-lg, 24px); }

.p-sm { padding: var(--sri-prim-space-sm, 8px); }
.p-md { padding: var(--sri-prim-space-md, 16px); }
.p-lg { padding: var(--sri-prim-space-lg, 24px); }

/* ── 暗黑模式 ── */
body.dark-mode,
[data-theme="dark"] {
  --sri-color-surface:          #0f0f23;
  --sri-color-surface-alt:      #1a1a2e;
  --sri-color-surface-card:     #16213e;
  --sri-color-surface-input:    #1e293b;
  --sri-color-text-primary:     #e0e0e0;
  --sri-color-text-secondary:   #aaaaaa;
  --sri-color-text-muted:       #666666;
  --sri-color-text-link:        #64B5F6;
  --sri-color-border:           #333333;
  --sri-color-border-light:     #2a2a2a;
  --sri-color-primary-light:    #3d1a1a;
  --sri-color-success-bg:       #1a3a1a;
  --sri-color-info-bg:          #1a2a3a;
  --sri-color-warning-bg:       #3a2a1a;
  --sri-color-error-bg:         #3a1a1a;
  --sri-color-purple-bg:        #2a1a3a;
  --sri-heading-color:          #e0e0e0;
  --sri-btn-secondary-bg:       #1e293b;
  --sri-btn-secondary-color:    #e0e0e0;
  --sri-btn-secondary-border:   #333;
  --sri-card-shadow:            0 2px 8px rgba(0,0,0,0.3);
  --sri-shadow-dropdown:        0 4px 16px rgba(0,0,0,0.4);
  --sri-shadow-modal:           0 8px 32px rgba(0,0,0,0.5);
}

/* ── 响应式 ── */
@media (max-width: 640px) {
  :root {
    --sri-space-padding: var(--sri-prim-space-sm);
    --sri-space-margin:  var(--sri-prim-space-md);
    --sri-space-section: var(--sri-prim-space-lg);
    --sri-card-padding:  var(--sri-prim-space-md);
    --sri-modal-padding: var(--sri-prim-space-md);
  }
  body { font-size: 14px; }
  h1 { font-size: 28px; }
  h2 { font-size: 24px; }
  h3 { font-size: 20px; }
}

/* ── 打印 ── */
@media print {
  body { background: #fff; color: #000; }
  .btn, .modal-overlay, nav { display: none !important; }
}

/* ═══════════════════════════════════════════════════════════
   前端交互体验增强层 v1.0 (2026-07-12 · 玉授权)
   目标: 点击反馈 / 按压态 / 防重复点击 / 微过渡
   不修改任何既有规则, 仅追加
   ═══════════════════════════════════════════════════════════ */

/* ── 全局按压态: 点击瞬间给予"被按下"的视觉确认 ── */
a:active,
button:active,
.btn:active,
.ltool:active,
.cta-btn:active,
.step:active,
.ft a:active {
  transform: scale(0.96) !important;
  transition: transform 0.08s ease !important;
}

/* ── 可点击元素指针规范化 ── */
.ltool,
.cta-btn,
.step,
.btn,
button,
[data-clickable],
a[href] {
  cursor: pointer;
}

/* ── 链接/按钮通用焦点可见性(键盘可达) ── */
a:focus-visible,
.ltool:focus-visible,
.cta-btn:focus-visible {
  outline: 2px solid var(--sri-color-primary, #8B4513);
  outline-offset: 2px;
}

/* ── 五级体验流 .ltool 按压微反馈(原仅 hover) ── */
.ltool {
  position: relative;
  overflow: hidden;
  transition: all 0.15s ease, transform 0.08s ease !important;
  will-change: transform;
}
.ltool:active {
  border-color: var(--sri-color-primary, #8B4513) !important;
  background: rgba(194,59,34,0.06) !important;
}

/* ── .step 卡片点击态(原仅 hover) ── */
.step {
  transition: all 0.3s, transform 0.08s ease !important;
  cursor: pointer;
}
.step:active {
  transform: translateY(0) scale(0.99) !important;
  box-shadow: 0 2px 8px rgba(194,59,34,0.10) !important;
}

/* ── 首页 CTA 按压态增强 ── */
.cta-btn {
  transition: all 0.25s, transform 0.08s ease !important;
}
.cta-btn:active {
  transform: skewX(-4deg) scale(0.97) !important;
}

/* ── 点击波纹反馈(由 sri-interaction.js 注入 .ripple) ── */
.ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  background: rgba(194,59,34,0.25);
  animation: ripple-anim 0.6s ease-out;
  pointer-events: none;
  z-index: 5;
}
@keyframes ripple-anim {
  to { transform: scale(2.5); opacity: 0; }
}

/* ── 导航跳转加载态遮罩(由 sri-interaction.js 控制) ── */
#sri-nav-loading {
  position: fixed;
  inset: 0;
  background: rgba(245,240,230,0.6);
  backdrop-filter: blur(2px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9998;
  font-size: 14px;
  color: var(--sri-color-primary, #8B4513);
  letter-spacing: 2px;
}
#sri-nav-loading.show { display: flex; }
#sri-nav-loading .spinner {
  width: 28px; height: 28px;
  border: 3px solid rgba(194,59,34,0.2);
  border-top-color: #8B4513;
  border-radius: 50%;
  animation: sri-spin 0.7s linear infinite;
  margin-right: 10px;
}
@keyframes sri-spin { to { transform: rotate(360deg); } }

/* ── 防重复点击: 跳转中禁用指针事件 ── */
body.sri-navigating { pointer-events: none; }