/* ====== inner-page components (products / cases / articles / contact) ====== */
.page-hero .lead { color: var(--ink-2); font-size: 1.0625rem; margin-top: 14px; max-width: 60ch; }
.cat-pills { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.cat-pill { display: inline-flex; align-items: center; gap: 8px; padding: 9px 18px; border-radius: 999px; border: 1.5px solid var(--line); background: var(--surface); font-weight: 700; font-size: 13px; color: var(--ink-2); cursor: pointer; transition: all 0.2s var(--ease); }
.cat-pill:hover { border-color: var(--accent); color: var(--ink); }
.cat-pill.active { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; }

.spec-wrap { overflow-x: auto; border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 760px; }
.spec-table th, .spec-table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.spec-table thead th { background: var(--accent-soft); color: var(--accent-deep); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; }
.spec-table tbody tr:last-child td { border-bottom: 0; }
.spec-table td strong { color: var(--ink); }
.spec-table td .cat { display: inline-block; font-size: 11px; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent-deep); background: var(--accent-soft); padding: 2px 9px; border-radius: 999px; }
.spec-table td .cat.mineral { color: var(--cta-deep); background: var(--cta-soft); }

.process-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-top: 28px; }
.process-step { background: var(--surface); border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 20px 16px; text-align: center; box-shadow: var(--shadow-sm); }
.process-step .step-no { width: 34px; height: 34px; margin: 0 auto 12px; display: grid; place-items: center; border-radius: 50%; background: var(--cta); color: #fff; font-weight: 800; font-size: 14px; }
.process-step strong { display: block; font-size: 15px; color: var(--ink); }
.process-step span { display: block; font-size: 12.5px; color: var(--ink-3); margin-top: 4px; line-height: 1.5; }

.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-card { background: var(--surface); border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; gap: 10px; }
.case-card .case-tag { font-size: 11px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--cta-deep); }
.case-card h3 { font-size: 18px; }
.case-card p { color: var(--ink-2); font-size: 14.5px; flex: 1; }
.case-card ul { margin: 0; padding-left: 18px; color: var(--ink-2); font-size: 13.5px; display: grid; gap: 6px; }

.article-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.article-card { background: var(--surface); border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; gap: 12px; transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease); }
.article-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.article-card .a-date { font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); }
.article-card h3 { font-size: 19px; line-height: 1.35; }
.article-card h3 a { color: var(--ink); }
.article-card h3 a:hover { color: var(--accent-deep); }
.article-card p { color: var(--ink-2); font-size: 14.5px; flex: 1; }
.article-card .a-more { font-weight: 700; font-size: 14px; color: var(--accent-deep); }

.article-empty { background: var(--warm); border: 1px dashed var(--line); border-radius: var(--radius-lg); padding: 40px; text-align: center; color: var(--ink-2); }
.article-body { max-width: 760px; margin: 0 auto; color: var(--ink-2); font-size: 1.0625rem; line-height: 1.85; }
.article-body h2 { color: var(--ink); font-size: 1.5rem; margin-top: 34px; }
.article-body h3 { color: var(--ink); font-size: 1.2rem; margin-top: 26px; }
.article-body p { margin-top: 16px; }
.article-body ul, .article-body ol { margin-top: 16px; padding-left: 22px; }
.article-body li { margin-top: 8px; }
.article-body img { border-radius: var(--radius); margin-top: 20px; }
.article-body blockquote { border-left: 3px solid var(--cta); margin: 24px 0; padding: 8px 20px; background: var(--warm); border-radius: 0 var(--radius) var(--radius) 0; font-weight: 600; color: var(--ink); }

.inquiry-form { background: var(--surface); border: 1px solid var(--line-soft); border-radius: var(--radius-lg); padding: clamp(24px, 4vw, 40px); box-shadow: var(--shadow-md); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 13px; font-weight: 700; color: var(--ink-2); }
.form-field input, .form-field select, .form-field textarea { font: inherit; font-size: 15px; color: var(--ink); padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 12px; background: var(--canvas); outline: none; transition: border-color 0.2s; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--accent); }
.form-field textarea { min-height: 120px; resize: vertical; }
.form-note { font-size: 13px; color: var(--ink-3); margin-top: 14px; }

.faq-list { display: grid; gap: 12px; max-width: 820px; margin: 0 auto; }
.faq-item { background: var(--surface); border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.faq-item summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 20px; font-weight: 700; color: var(--ink); font-size: 15.5px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 22px; color: var(--cta); line-height: 1; transition: transform 0.2s var(--ease); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 20px 20px; color: var(--ink-2); font-size: 14.5px; line-height: 1.7; }

@media (max-width: 1023px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: 1fr; }
  .article-list { grid-template-columns: 1fr; }
}
@media (max-width: 639px) {
  .form-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
}