/* ============================================================
   advisor.css —— 选型顾问（/tools/ai-advisor.html）专用样式
   只引用 tokens.css 变量，不引入裸色值（产品色标除外：用于区分镁化合物大类）
   ============================================================ */

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- 页头 ---------- */
.adv-head { max-width: 860px; margin-bottom: var(--space-5, 24px); }
.adv-head h1 { margin: 6px 0 10px; }
.adv-head .lead { margin: 0; color: var(--color-text-secondary); }

/* ---------- 筛选条 ---------- */
.adv-filters {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end;
  padding: 16px 18px; background: var(--color-bg-alt);
  border: 1px solid var(--color-border); border-radius: var(--radius-lg, 14px);
}
.adv-field { display: flex; flex-direction: column; gap: 6px; min-width: 170px; }
.adv-field-grow { flex: 1 1 220px; }
.adv-field label { font-size: var(--fs-xs, 13px); color: var(--color-text-tertiary); font-weight: 600; }
.adv-field select,
.adv-field input {
  height: 38px; padding: 0 10px; font-size: var(--fs-sm, 14px);
  border: 1px solid var(--color-border-input); border-radius: 8px;
  background: #fff; color: var(--color-text-body); font-family: inherit;
}
.adv-field select:focus,
.adv-field input:focus { outline: 2px solid var(--color-focus-ring); outline-offset: 1px; }

.adv-count { margin: 14px 0 12px; font-size: var(--fs-sm, 14px); color: var(--color-text-secondary); }
.adv-count b { color: var(--color-primary); font-size: 16px; }

/* ---------- 应用卡片 ---------- */
.adv-grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.adv-card {
  display: flex; flex-direction: column; gap: 8px;
  padding: 16px 18px; background: #fff;
  border: 1px solid var(--color-border); border-radius: var(--radius-lg, 14px);
  box-shadow: var(--shadow-sm, 0 1px 2px rgba(16, 62, 59, .05));
  cursor: pointer; transition: box-shadow .15s ease, transform .15s ease, border-color .15s ease;
}
.adv-card:hover,
.adv-card:focus-visible {
  box-shadow: var(--shadow-md, 0 8px 24px rgba(16, 62, 59, .10));
  transform: translateY(-2px); border-color: var(--color-brand-300);
  outline: none;
}
.adv-card-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.adv-ind {
  display: inline-block; padding: 2px 8px; border-radius: 999px;
  background: var(--color-brand-50); color: var(--color-brand-700);
  font-size: var(--fs-xxs, 12px); font-weight: 600;
}
.adv-more { font-size: var(--fs-xxs, 12px); color: var(--color-link); }
.adv-card h3 { margin: 0; font-size: 17px; line-height: 1.4; color: var(--color-text-title); }
.adv-cust { margin: 0; font-size: var(--fs-xs, 13px); color: var(--color-text-tertiary); }
.adv-demand { margin: 0; font-size: var(--fs-sm, 14px); color: var(--color-text-secondary); line-height: 1.6; }
.adv-demand b { color: var(--color-text-body); }
.adv-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 2px; }
.adv-chip {
  padding: 2px 8px; border-radius: 6px; font-size: var(--fs-xxs, 12px);
  font-family: var(--font-mono); font-weight: 600;
  border: 1px solid var(--color-border); background: var(--color-bg-alt); color: var(--color-text-body);
}
/* 产品大类色标（仅用于区分，不参与语义） */
.adv-chip-lq { border-color: #BFD9C9; background: #EFF7F2; color: #24604A; }
.adv-chip-hx { border-color: #C9DCC0; background: #F2F8EE; color: #3C5F2E; }
.adv-chip-zs { border-color: #D8CDBB; background: #F8F5EF; color: #6B5533; }
.adv-chip-dr { border-color: #C2CCD8; background: #F0F4F9; color: #35506B; }
.adv-chip-gc { border-color: #C9C6DE; background: #F4F3FA; color: #4B4580; }
.adv-chip-qh { border-color: #C6D8DB; background: #EFF6F7; color: #245C61; }
.adv-chip-ts { border-color: #DED3C4; background: #FAF6F1; color: #6E5A3E; }

.adv-empty { padding: 40px 0; text-align: center; }
.adv-note {
  margin-top: 22px; padding: 14px 16px; font-size: var(--fs-xs, 13px);
  line-height: 1.7; color: var(--color-text-secondary);
  background: var(--color-info-bg); border: 1px solid var(--color-info-border); border-radius: 10px;
}
.adv-note strong { color: var(--color-info-text); }

/* ---------- 弹层 ---------- */
.adv-modal { position: fixed; inset: 0; z-index: 90; display: flex; align-items: center; justify-content: center; }
.adv-modal[hidden] { display: none; }
.adv-modal-mask { position: absolute; inset: 0; background: rgba(16, 30, 36, .48); }
.adv-modal-panel {
  position: relative; z-index: 1;
  width: min(920px, calc(100% - 32px)); max-height: 88dvh;
  overflow-y: auto; overscroll-behavior: contain;
  background: #fff; border-radius: 16px; padding: 22px 24px 26px;
  box-shadow: 0 24px 60px rgba(16, 30, 36, .28);
}
.adv-modal-wide { width: min(1080px, calc(100% - 32px)); }
.adv-modal-x {
  position: absolute; top: 10px; right: 12px;
  width: 34px; height: 34px; border: 0; border-radius: 50%;
  background: var(--color-bg-alt); color: var(--color-text-secondary);
  font-size: 20px; line-height: 1; cursor: pointer;
}
.adv-modal-x:hover { background: var(--color-neutral-200); }

.adv-modal-head h2 { margin: 6px 0 8px; font-size: 22px; }
.adv-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin: 16px 0; }
.adv-tab {
  display: flex; flex-direction: column; gap: 2px; align-items: flex-start;
  padding: 8px 14px; cursor: pointer;
  border: 1px solid var(--color-border); border-radius: 10px;
  background: #fff; color: var(--color-text-body); font-family: inherit; text-align: left;
}
.adv-tab b { font-family: var(--font-mono); font-size: 14px; }
.adv-tab span { font-size: 12px; color: var(--color-text-tertiary); }
.adv-tab.is-on { border-color: var(--color-primary); background: var(--color-brand-50); }
.adv-tab.is-on b { color: var(--color-primary); }

.adv-rec-head { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-start; justify-content: space-between; }
.adv-rec-head h3 { margin: 0 0 4px; font-size: 18px; }
.adv-rec-sub { margin: 0; font-size: var(--fs-xs, 13px); color: var(--color-text-tertiary); }
.adv-rec-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.adv-spec { width: 100%; margin: 16px 0 4px; border-collapse: collapse; font-size: var(--fs-sm, 14px); }
.adv-spec th,
.adv-spec td { padding: 8px 12px; border: 1px solid var(--color-border); text-align: left; vertical-align: top; }
.adv-spec th {
  width: 34%; background: var(--color-bg-alt);
  font-weight: 600; color: var(--color-text-secondary);
}
.adv-spec td { color: var(--color-text-title); }

.adv-blocks { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; margin-top: 16px; }
.adv-block { padding: 12px 14px; border-radius: 10px; background: var(--color-bg-alt); }
.adv-block h4 { margin: 0 0 6px; font-size: 14px; color: var(--color-text-title); }
.adv-block p,
.adv-block ul { margin: 0; font-size: var(--fs-sm, 14px); line-height: 1.65; color: var(--color-text-secondary); }
.adv-block ul { padding-left: 18px; }
.adv-block li + li { margin-top: 4px; }
.adv-block-price { background: var(--color-accent-50); }
.adv-block-price h4 { color: var(--color-accent-700); }
.adv-block-warn { background: var(--color-warning-bg); }
.adv-block-warn h4 { color: var(--color-warning-text); }

.adv-sales {
  margin-top: 18px; padding: 14px 16px;
  border: 1px dashed var(--color-brand-300); border-radius: 12px;
  background: var(--color-brand-50);
}
.adv-sales h4 { margin: 0 0 8px; font-size: 15px; color: var(--color-brand-800); }
.adv-sales p { margin: 0 0 6px; font-size: var(--fs-sm, 14px); line-height: 1.7; color: var(--color-text-body); }
.adv-sales p:last-child { margin-bottom: 0; }

.adv-links {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--color-border);
  font-size: var(--fs-sm, 14px); color: var(--color-text-tertiary);
}

/* ---------- 对比条 ---------- */
.adv-comparebar {
  position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%);
  z-index: 80; display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  max-width: calc(100% - 24px);
  padding: 10px 14px; border-radius: 999px;
  background: var(--color-surface-strong); color: var(--color-text-inverse);
  box-shadow: 0 10px 30px rgba(16, 30, 36, .3); font-size: var(--fs-sm, 14px);
}
.adv-comparebar[hidden] { display: none; }
.adv-comparebar b { color: #fff; }

/* ---------- 对比表 ---------- */
.adv-compare-wrap { overflow-x: auto; margin-top: 12px; }
.adv-compare-table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm, 14px); min-width: 520px; }
.adv-compare-table th,
.adv-compare-table td { padding: 8px 12px; border: 1px solid var(--color-border); text-align: left; vertical-align: top; }
.adv-compare-table thead th { background: var(--color-brand-50); }
.adv-compare-table thead th b { display: block; font-family: var(--font-mono); color: var(--color-primary); }
.adv-compare-table thead th span { font-weight: 400; font-size: 12px; color: var(--color-text-tertiary); }
.adv-compare-table tbody th { background: var(--color-bg-alt); white-space: nowrap; font-weight: 600; }
.adv-compare-table .adv-na { color: var(--color-text-tertiary); }

/* ---------- Toast ---------- */
.adv-toast {
  position: fixed; left: 50%; bottom: 84px; transform: translate(-50%, 8px);
  z-index: 95; padding: 10px 18px; border-radius: 999px;
  background: rgba(16, 30, 36, .92); color: #fff; font-size: var(--fs-sm, 14px);
  opacity: 0; pointer-events: none; transition: opacity .18s ease, transform .18s ease;
}
.adv-toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 响应式 ---------- */
@media (max-width: 760px) {
  .adv-blocks { grid-template-columns: 1fr; }
  .adv-modal-panel { width: calc(100% - 16px); max-height: 92dvh; padding: 18px 16px 22px; }
  .adv-filters { flex-direction: column; align-items: stretch; }
  .adv-field { min-width: 0; }
  .adv-comparebar { border-radius: 14px; bottom: 10px; }
}

@media print {
  .adv-filters, .adv-comparebar, .adv-modal-x, .adv-rec-actions, .adv-links, #site-header, #site-footer { display: none !important; }
  .adv-modal, .adv-modal-mask { position: static; background: #fff; }
  .adv-modal-panel { box-shadow: none; max-height: none; overflow: visible; }
}