/* ==========================================================================
   大理蔚蓝科技 · 官网模板  components.css
   按钮 / 卡片 / 标签 / 表单 / 表格 / Tab / 手风琴 / 模态 / 分页 / 时间轴 ...
   ========================================================================== */

/* ============================ 按钮 ============================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 22px;
  border-radius: var(--r-sm);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--t);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn--primary { background: var(--grad-main); color: #fff; box-shadow: var(--sh-blue); }
.btn--primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 12px 26px rgba(26, 86, 219, .36); }
.btn--outline { border-color: var(--c-line-2); color: var(--c-ink); background: #fff; }
.btn--outline:hover { border-color: var(--c-primary-2); color: var(--c-primary-2); background: var(--c-bg); }
.btn--ghost { color: var(--c-primary-2); background: var(--c-primary-3); }
.btn--ghost:hover { background: #dbe6fa; color: var(--c-primary); }
.btn--light { background: #fff; color: var(--c-primary); }
.btn--light:hover { color: var(--c-primary); transform: translateY(-2px); }
.btn--sm { height: 38px; padding: 0 16px; font-size: 14px; }
.btn--lg { height: 54px; padding: 0 30px; font-size: 16px; }
.btn--block { width: 100%; }
.btn[disabled] { opacity: .55; pointer-events: none; }

.btn-group { display: flex; flex-wrap: wrap; gap: 12px; }

.link-arrow { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 15px; }
.link-arrow svg { width: 16px; height: 16px; transition: transform var(--t); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ============================ 卡片 ============================ */
.card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  padding: 28px;
  transition: all var(--t);
}
.card--hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-3);
  border-color: #c9d9f5;
}
.card__icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-primary-3);
  color: var(--c-primary-2);
  margin-bottom: 18px;
}
.card__icon svg { width: 26px; height: 26px; }
.card__icon--cyan { background: #e0f6fa; color: #0891b2; }
.card__icon--pink { background: #ffe9ec; color: var(--c-pink); }
.card__icon--green { background: #e3f7ea; color: var(--c-green); }
.card__icon--orange { background: #fef3c7; color: #d97706; }
.card h4 { margin-bottom: 10px; font-size: 18px; }
.card p { font-size: 14.5px; color: var(--c-muted); margin-bottom: 0; }
.card__more { margin-top: 14px; }

/* 特性网格（九宫格） */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
@media (max-width: 1023px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .feature-grid { grid-template-columns: 1fr; } }

/* 数值卡 */
.stat-card {
  text-align: center;
  padding: 28px 20px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
}
.stat-card b { display: block; font-size: 34px; font-weight: 700; color: var(--c-primary); line-height: 1.1; }
.stat-card b i { font-style: normal; font-size: 20px; color: var(--c-cyan); }
.stat-card span { display: block; margin-top: 8px; font-size: 14px; color: var(--c-muted); }

/* ============================ 标签 / 徽章 ============================ */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--r-pill);
  font-size: 12.5px;
  background: var(--c-bg-2);
  color: var(--c-muted);
  line-height: 1.6;
}
.tag--primary { background: var(--c-primary-3); color: var(--c-primary); }
.tag--primary-2 { background: #e6eeff; color: var(--c-primary-2); }
.tag--cyan { background: #e0f6fa; color: #0e7490; }
.tag--green { background: #e3f7ea; color: #15803d; }
.tag--pink { background: #ffe9ec; color: #be123c; }
.tag--orange { background: #fef3c7; color: #b45309; }
.tag--purple { background: #f3e8ff; color: #7e22ce; }
.tag--outline { background: #fff; border: 1px solid var(--c-line-2); }

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--r-pill);
  font-size: 12px;
  font-weight: 600;
  background: var(--grad-main);
  color: #fff;
}
.badge--pink { background: linear-gradient(135deg, #ff6b81, #ff9472); }
.badge--green { background: linear-gradient(135deg, #22a45d, #4ade80); }

/* ============================ 表单 ============================ */
.field { margin-bottom: 18px; }
.field__label { display: block; font-size: 14px; font-weight: 600; color: var(--c-ink); margin-bottom: 8px; }
.field__label .req { color: var(--c-pink); margin-left: 2px; }
.field__hint { font-size: 12.5px; color: var(--c-sub); margin-top: 6px; }
.field__err { font-size: 12.5px; color: var(--c-pink); margin-top: 6px; display: none; }
.field.is-error .field__err { display: block; }
.field.is-error .input, .field.is-error .textarea, .field.is-error .select { border-color: var(--c-pink); }

.input, .select, .textarea {
  width: 100%;
  height: 46px;
  padding: 0 14px;
  border: 1px solid var(--c-line-2);
  border-radius: var(--r-sm);
  background: #fff;
  font-size: 15px;
  color: var(--c-ink);
  transition: border-color var(--t), box-shadow var(--t);
}
.textarea { height: auto; min-height: 110px; padding: 12px 14px; line-height: 1.7; resize: vertical; }
.select { appearance: none; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2364748b' stroke-width='2'><path d='M4 6l4 4 4-4'/></svg>"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--c-primary-2); box-shadow: 0 0 0 3px rgba(26, 86, 219, .12);
}
.input::placeholder, .textarea::placeholder { color: var(--c-sub); }

.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 16px; }
@media (max-width: 575px) { .form-row { grid-template-columns: 1fr; } }

.checkbox, .radio { display: inline-flex; align-items: flex-start; gap: 10px; cursor: pointer; font-size: 14px; }
.checkbox input, .radio input { width: 18px; height: 18px; margin: 3px 0 0; accent-color: var(--c-primary-2); flex: none; }

.form-note { font-size: 12.5px; color: var(--c-sub); margin-top: 12px; }
.form-success {
  display: none;
  padding: 20px;
  border-radius: var(--r);
  background: #e3f7ea;
  border: 1px solid #a7e8c1;
  color: #15803d;
  font-size: 14.5px;
}
.form-success.is-show { display: block; }

/* ============================ 表格 ============================ */
.table-wrap { overflow-x: auto; border: 1px solid var(--c-line); border-radius: var(--r); background: #fff; }
.table { min-width: 640px; font-size: 14.5px; }
.table th, .table td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--c-line); vertical-align: middle; }
.table thead th { background: var(--c-bg); font-weight: 600; color: var(--c-ink); white-space: nowrap; }
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: #fafcff; }
.table td.center, .table th.center { text-align: center; }
.table .yes { color: var(--c-green); font-weight: 700; }
.table .no { color: var(--c-sub); }
.table .opt { color: var(--c-orange); font-weight: 600; }
.table--sticky th:first-child, .table--sticky td:first-child {
  position: sticky; left: 0; background: #fff; z-index: 2; box-shadow: 1px 0 0 var(--c-line);
}
.table--sticky thead th:first-child { background: var(--c-bg); z-index: 3; }
.table--sticky tbody tr:hover td:first-child { background: #fafcff; }

/* ============================ Tab ============================ */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.tabs--center { justify-content: center; }
.tabs--scroll { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }
.tab {
  padding: 9px 18px;
  border-radius: var(--r-pill);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--c-muted);
  background: var(--c-bg-2);
  border: 1px solid transparent;
  transition: all var(--t);
  white-space: nowrap;
}
.tab:hover { color: var(--c-primary-2); }
.tab.is-active { background: var(--grad-main); color: #fff; box-shadow: var(--sh-blue); }
.tab small { opacity: .72; margin-left: 4px; }

.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: fadeUp .35s var(--ease); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ============================ 手风琴 ============================ */
.accordion { border: 1px solid var(--c-line); border-radius: var(--r); overflow: hidden; background: #fff; }
.accordion__item + .accordion__item { border-top: 1px solid var(--c-line); }
.accordion__head {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 22px;
  font-size: 16px; font-weight: 600; color: var(--c-ink);
  text-align: left;
  transition: background var(--t);
}
.accordion__head:hover { background: var(--c-bg); }
.accordion__icon { flex: none; width: 22px; height: 22px; color: var(--c-primary-2); transition: transform var(--t); }
.accordion__item.is-open .accordion__icon { transform: rotate(45deg); }
.accordion__body { display: none; padding: 0 22px 20px; font-size: 14.5px; color: var(--c-muted); }
.accordion__item.is-open .accordion__body { display: block; }

/* ============================ 模态框 ============================ */
.modal {
  position: fixed; inset: 0; z-index: 1100;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  background: rgba(8, 42, 99, .5);
  opacity: 0; visibility: hidden;
  transition: opacity var(--t), visibility var(--t);
}
.modal.is-open { opacity: 1; visibility: visible; }
.modal__box {
  width: min(560px, 100%);
  max-height: 86vh;
  overflow-y: auto;
  background: #fff;
  border-radius: var(--r-lg);
  padding: 28px;
  transform: translateY(16px) scale(.98);
  transition: transform .3s var(--ease);
}
.modal.is-open .modal__box { transform: none; }
.modal__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.modal__head h4 { font-size: 20px; }
.modal__close { font-size: 24px; color: var(--c-sub); line-height: 1; }
.modal__close:hover { color: var(--c-ink); }

/* ============================ 抽屉面板（报价明细等） ============================ */
.sheet {
  position: fixed; inset: 0; z-index: 1050;
  background: rgba(8, 42, 99, .45);
  opacity: 0; visibility: hidden; transition: all var(--t);
}
.sheet.is-open { opacity: 1; visibility: visible; }
.sheet__box {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: #fff;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  padding: 22px;
  max-height: 82vh; overflow-y: auto;
  transform: translateY(100%);
  transition: transform .32s var(--ease);
}
.sheet.is-open .sheet__box { transform: none; }

/* ============================ 分页 ============================ */
.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 48px; }
.pagination a, .pagination span {
  min-width: 38px; height: 38px; padding: 0 10px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  font-size: 14px; color: var(--c-text);
  transition: all var(--t);
}
.pagination a:hover { border-color: var(--c-primary-2); color: var(--c-primary-2); }
.pagination .is-cur { background: var(--grad-main); color: #fff; border-color: transparent; font-weight: 600; }
.pagination .is-disabled { color: var(--c-sub); pointer-events: none; }

/* ============================ 时间轴 / 步骤条 ============================ */
.steps { display: grid; gap: 0; counter-reset: step; }
.step { display: flex; gap: 18px; padding-bottom: 28px; position: relative; }
.step:last-child { padding-bottom: 0; }
.step::before {
  content: ""; position: absolute; left: 17px; top: 40px; bottom: 0;
  width: 2px; background: var(--c-line);
}
.step:last-child::before { display: none; }
.step__dot {
  width: 36px; height: 36px; flex: none;
  border-radius: 50%;
  background: var(--grad-main);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px;
  box-shadow: var(--sh-blue);
}
.step__body h5 { font-size: 17px; margin-bottom: 6px; }
.step__body p { font-size: 14.5px; color: var(--c-muted); }

.steps--h { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.steps--h .step { flex-direction: column; align-items: flex-start; padding: 0; }
.steps--h .step::before {
  left: 36px; right: -8px; top: 17px; bottom: auto; width: auto; height: 2px;
}
.steps--h .step:last-child::before { display: none; }
.steps--h .step__dot { margin-bottom: 14px; }
@media (max-width: 1023px) { .steps--h { grid-template-columns: repeat(3, 1fr); gap: 28px 16px; } }
@media (max-width: 575px) { .steps--h { grid-template-columns: repeat(2, 1fr); } }

/* ============================ 列表 ============================ */
.list-check { display: grid; gap: 12px; }
.list-check li { display: flex; gap: 10px; font-size: 14.5px; color: var(--c-text); }
.list-check svg { width: 18px; height: 18px; flex: none; margin-top: 4px; color: var(--c-green); }
.list-check--cross svg { color: var(--c-sub); }

.list-dot { display: grid; gap: 10px; }
.list-dot li { position: relative; padding-left: 18px; font-size: 14.5px; }
.list-dot li::before {
  content: ""; position: absolute; left: 0; top: 11px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--c-cyan);
}

/* ============================ 提示条 ============================ */
.alert {
  display: flex; gap: 12px;
  padding: 14px 18px;
  border-radius: var(--r-sm);
  font-size: 14.5px;
  border: 1px solid transparent;
}
.alert svg { width: 20px; height: 20px; flex: none; margin-top: 2px; }
.alert--info { background: var(--c-primary-3); border-color: #c9d9f5; color: #1e40af; }
.alert--warn { background: #fff7ed; border-color: #fed7aa; color: #b45309; }
.alert--ok { background: #e3f7ea; border-color: #a7e8c1; color: #15803d; }
.alert--tip { background: var(--c-bg); border-color: var(--c-line); color: var(--c-text); }

/* ============================ CTA 条 ============================ */
.cta-band {
  position: relative;
  padding: 64px 0;
  background: var(--grad-main);
  color: #fff;
  overflow: hidden;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(0, 169, 196, .35), transparent 60%);
}
.cta-band > .container { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; margin-bottom: 10px; }
.cta-band p { color: rgba(255, 255, 255, .82); margin: 0; max-width: 620px; }

/* ============================ Logo 墙跑马灯 ============================ */
.marquee { overflow: hidden; position: relative; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee__track { display: flex; gap: 48px; width: max-content; animation: marquee 100s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item { flex: none; width: 148px; height: 56px; }
.marquee__item .ph { height: 56px; background: #fff; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ============================ 搜索框 ============================ */
.search-box { position: relative; max-width: 520px; }
.search-box .input { height: 52px; padding-left: 46px; border-radius: var(--r-pill); box-shadow: var(--sh-1); }
.search-box .input:focus { box-shadow: 0 0 0 3px rgba(26, 86, 219, .12); }
.search-box > svg { position: absolute; left: 18px; top: 50%; transform: translateY(-50%); width: 20px; height: 20px; color: var(--c-sub); }

/* ============================ 字母索引 ============================ */
.alpha-bar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 28px; }
.alpha-bar a, .alpha-bar span {
  width: 34px; height: 34px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--r-sm);
  font-size: 14px; font-weight: 600;
  background: var(--c-bg-2); color: var(--c-muted);
  transition: all var(--t);
}
.alpha-bar a:hover { background: var(--c-primary-3); color: var(--c-primary); }
.alpha-bar .is-disabled { opacity: .4; pointer-events: none; }

/* ============================ 空状态 ============================ */
.empty { text-align: center; padding: 56px 20px; color: var(--c-sub); }
.empty svg { width: 48px; height: 48px; margin: 0 auto 14px; color: var(--c-line-2); }