/*
 * inner-pages.css — Page-specific layout classes
 * 环贸智荟 · Images 2.0
 * --------------------------------------------------------
 * Depends on: premium.css (variables, .pcard, .pface, etc.)
 * Load order: premium.css → inner-pages.css
 *
 * Pages covered:
 *   About · Product · Solutions · Deliverables · Contact
 *   Why Us · Solution Detail · News / Article
 */

/* ============================================================
   ABOUT PAGE
   ============================================================ */

/* Main two-column intro layout */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

@media (max-width: 860px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
}

/* Visual mark plate — portrait ratio textured plate */
.about-mark-plate {
    aspect-ratio: 4 / 5;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(145deg, var(--pg-face) 0%, #E4E3DF 100%);
    border: 1px solid var(--pg-hair-silver);
    border-radius: 8px;
    overflow: hidden;
}

/* Intro text two-column (narrow label + wide copy) */
.about-intro-grid {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 64px;
    align-items: start;
}

@media (max-width: 860px) {
    .about-intro-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

/* Ideal / values overview — 3 columns */
.ideal-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

@media (max-width: 760px) {
    .ideal-grid {
        grid-template-columns: 1fr;
    }
}

/* Core values — 2 columns with border divider */
.val-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border: 1px solid var(--pg-hair-silver);
    border-radius: 6px;
    overflow: hidden;
}

.val-grid > * {
    border-right: 1px solid var(--pg-hair-silver);
    border-bottom: 1px solid var(--pg-hair-silver);
}

.val-grid > *:nth-child(2n) {
    border-right: none;
}

.val-grid > *:nth-last-child(-n+2) {
    border-bottom: none;
}

@media (max-width: 760px) {
    .val-grid {
        grid-template-columns: 1fr;
    }

    .val-grid > * {
        border-right: none;
    }

    .val-grid > *:last-child {
        border-bottom: none;
    }
}

/* ============================================================
   PRODUCT / AI-BRAND-ENGINEERING PAGE
   ============================================================ */

/* Secondary hero (shorter than homepage hero) */
.hero2 {
    padding: 64px 0 120px;
}

.hero2-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

@media (max-width: 900px) {
    .hero2-grid {
        grid-template-columns: 1fr;
    }
}

/* Product spec table card */
.spec {
    background: var(--pg-face);
    border: 1px solid var(--pg-hair-silver);
    border-radius: 8px;
    overflow: hidden;
}

.spec-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 26px;
    border-bottom: 1px solid var(--pg-hair);
}

.spec-head-title {
    font-family: var(--font-serif);
    font-size: 15px;
    font-weight: 600;
    color: var(--pg-ink-strong);
}

.spec-rows {
    display: flex;
    flex-direction: column;
}

.spec-row {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 14px 26px;
    border-bottom: 1px solid var(--pg-hair);
    text-decoration: none;
    color: inherit;
    transition: background 0.15s;
}

.spec-row:last-child {
    border-bottom: none;
}

.spec-row:hover {
    background: var(--pg-mist);
}

.spec-p {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--pg-gold-deep);
    width: 28px;
    flex-shrink: 0;
}

.spec-name {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 700;
    color: var(--pg-ink-strong);
    flex: 1;
}

.spec-mods {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 12px;
    color: var(--pg-ink-faint);
    flex: 2;
}

.spec-count {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--pg-ink-faint);
    margin-left: auto;
    flex-shrink: 0;
}

.spec-foot {
    display: flex;
    gap: 12px;
    padding: 14px 26px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--pg-ink-faint);
    border-top: 1px solid var(--pg-hair);
}

/* Product tier / player list */
.player-list {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--pg-hair-silver);
}

.player-row {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 48px;
    padding: 48px 0;
    border-bottom: 1px solid var(--pg-hair-silver);
    align-items: start;
}

@media (max-width: 900px) {
    .player-row {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}

.player-id {
    display: flex;
    align-items: baseline;
    gap: 14px;
}

.player-p {
    /* Ghost pillar numeral; accent color set inline per pillar */
    font-family: var(--font-mono);
    font-size: 44px;
    font-weight: 500;
    line-height: 1;
    letter-spacing: -0.02em;
}

.player-name {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 800;
    color: var(--pg-ink-strong);
    letter-spacing: -0.01em;
    margin: 0;
}

.player-desc {
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--pg-ink-soft);
    line-height: 1.65;
    max-width: 300px;
    margin-top: 12px;
}

.player-count {
    /* Per-pillar module count; accent color set inline */
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-top: 12px;
}

/* Module spec rows inside a player row */
.player-mods {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mrow {
    display: grid;
    grid-template-columns: 44px 1fr auto;
    align-items: center;
    gap: 14px;
    background: var(--pg-face);
    border: 1px solid var(--pg-hair-silver);
    border-left-width: 2px;
    border-radius: 4px;
    padding: 11px 18px 11px 16px;
    transition: transform 0.2s var(--ease-lux), background 0.2s var(--ease-lux);
}

.mrow:hover {
    transform: translateX(4px);
    background: #ffffff;
}

.mrow-no {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
}

.mrow-zh {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 600;
    color: var(--pg-ink-strong);
}

.mrow-desc {
    font-size: 13px;
    color: var(--pg-ink-soft);
    margin-left: 14px;
}

.mrow-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--pg-ink-faint);
}

@media (max-width: 600px) {
    .mrow {
        grid-template-columns: 36px 1fr;
    }

    .mrow-tag {
        display: none;
    }

    .mrow-desc {
        display: block;
        margin-left: 0;
        margin-top: 2px;
    }
}

/* Unified count footer under the player list */
.layers-foot {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 34px;
    font-size: 13.5px;
    color: var(--pg-ink-soft);
}

.layers-foot img {
    width: 16px;
    height: 16px;
    opacity: 0.9;
}

.layers-foot .n {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--pg-gold-deep);
}

.layers-foot .dot {
    color: var(--pg-hair-silver);
}

.layers-foot .en {
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--pg-ink-faint);
}

/* Flow / step node list */
.pflow {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.pflow-node {
    /* Extends .pcard */
    padding: 22px 24px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.pflow-no {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--pg-gold-deep);
}

.pflow-zh {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 700;
    color: var(--pg-ink-strong);
}

.pflow-ar {
    color: var(--pg-gold);
    font-size: 16px;
}

.pflow-loop {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 13px;
    color: var(--pg-ink-faint);
}

/* Before / After contrast block */
.pcontrast {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 24px;
    align-items: start;
}

@media (max-width: 860px) {
    .pcontrast {
        grid-template-columns: 1fr;
    }
}

.pcon {
    /* Extends .pcard */
    padding: 32px 30px;
}

.pcon-rule {
    display: block;
    width: 40px;
    height: 2px;
    background: var(--pg-gold);
    margin-bottom: 14px;
}

.pcon-tag {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-serif);
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--pg-ink-faint);
    border: 1px solid var(--pg-hair-silver);
    border-radius: 20px;
    padding: 3px 10px;
    margin-bottom: 16px;
}

.pcon-tag-gold {
    color: var(--pg-gold-deep);
    border-color: rgba(166, 137, 102, 0.4);
}

.pcon-h {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--pg-ink-strong);
    margin-bottom: 20px;
}

.pcon-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pcon-list li {
    display: flex;
    gap: 10px;
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--pg-ink-soft);
    align-items: flex-start;
    line-height: 1.6;
}

.pcon-list .strong {
    color: var(--pg-ink-strong);
    font-weight: 500;
}

/* Central pivot column between before/after */
.pcon-pivot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding-top: 52px;
}

.pivot-ln {
    width: 1px;
    height: 40px;
    background: var(--pg-hair-silver);
}

.pivot-lb {
    font-family: var(--font-serif);
    font-size: 11px;
    font-style: italic;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--pg-ink-faint);
    white-space: nowrap;
}

/* Page-level CTA block */
.pcta {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 700px;
    margin: 0 auto;
}

.pcta-seal {
    width: 46px;
    height: auto;
    margin-bottom: 20px;
    opacity: 0.7;
}

.pcta-row {
    display: flex;
    gap: 26px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 36px;
}

/* Responsive line break helper */
.brm {
    display: inline;
}

@media (max-width: 600px) {
    .brm {
        display: block;
    }
}

/* ============================================================
   SOLUTIONS (AUDIENCE INDEX) PAGE
   ============================================================ */

/* Vertical index list of audience segments */
.aud-index {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--pg-hair);
    margin-top: 48px;
}

.aud-idx-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 18px 0;
    border-bottom: 1px solid var(--pg-hair);
    text-decoration: none;
    color: var(--pg-ink);
    transition: background 0.15s, padding-left 0.2s;
    /* Negative horizontal margin to bleed within .wrap */
    margin: 0 -48px;
    padding-left: 48px;
    padding-right: 48px;
}

.aud-idx-item:hover {
    background: var(--pg-mist);
}

.aud-idx-no {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--pg-gold-deep);
    flex-shrink: 0;
}

.aud-idx-name {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 700;
    color: var(--pg-ink-strong);
}

/* Detail blocks inside a solutions page */
.aud-list {
    display: flex;
    flex-direction: column;
}

.aud-block {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 64px;
    padding: 48px 0;
    border-top: 1px solid var(--pg-hair);
    align-items: start;
}

@media (max-width: 860px) {
    .aud-block {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}

.aud-label {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Mini process path */
.aud-path {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
}

.aud-step {
    /* Extends .pcard */
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.aud-ar {
    color: var(--pg-gold);
    font-size: 15px;
    flex-shrink: 0;
}

/* ============================================================
   DELIVERABLES PAGE
   ============================================================ */

.dv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* Featured deliverable card (parent must be .pcard) */
.dv-card--feat {
    position: relative;
}

@media (max-width: 860px) {
    .dv-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .dv-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */

/* First-screen split: promise left, form card right */
.contact-hero-grid {
    display: grid;
    grid-template-columns: 1fr 560px;
    gap: 72px;
    align-items: start;
}

@media (max-width: 1100px) {
    .contact-hero-grid {
        grid-template-columns: 1fr 480px;
        gap: 48px;
    }
}

@media (max-width: 900px) {
    .contact-hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* 2x2 contact facts on a mist plate */
.contact-facts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px 28px;
    background: var(--pg-mist);
    border: 1px solid var(--pg-hair);
    border-radius: 6px;
    padding: 22px 24px;
    margin-top: 34px;
}

.contact-fact {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.contact-facts .picon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    background: var(--pg-face);
    border: 1px solid var(--pg-hair);
}

.contact-fact .k {
    font-family: var(--font-sans);
    font-size: 11.5px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--pg-ink-faint);
}

.contact-fact .v {
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    color: var(--pg-ink-strong);
    margin-top: 3px;
    line-height: 1.45;
}

@media (max-width: 600px) {
    .contact-facts {
        grid-template-columns: 1fr;
        gap: 14px;
    }
}

/* "After you submit" expectation strip */
.contact-steps {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 26px;
}

.contact-steps img {
    width: 16px;
    height: 16px;
    opacity: 0.9;
}

.contact-steps .lbl {
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--pg-gold-deep);
    margin-right: 4px;
}

.contact-steps .st {
    font-family: var(--font-sans);
    font-size: 13px;
    color: var(--pg-ink-soft);
}

.contact-steps .st b {
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--pg-gold-deep);
    margin-right: 4px;
}

.contact-steps .sep {
    color: var(--pg-hair-silver);
}

/* Optional-fields disclosure (collapsed on mobile via JS) */
.optf {
    grid-column: 1 / -1;
}

.optf > summary {
    display: none;
    font-family: var(--font-sans);
    font-size: 13px;
    color: var(--pg-ink-soft);
    border: 1px dashed var(--pg-hair-silver);
    border-radius: 4px;
    padding: 12px 14px;
    cursor: pointer;
    list-style: none;
}

.optf > summary::-webkit-details-marker {
    display: none;
}

.optf > summary::after {
    content: "+";
    float: right;
    font-family: var(--font-mono);
    color: var(--pg-ink-faint);
}

.optf[open] > summary::after {
    content: "−";
}

.optf-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 600px) {
    .optf > summary {
        display: block;
    }

    .optf[open] > summary {
        margin-bottom: 16px;
    }

    .optf-fields {
        grid-template-columns: 1fr;
    }
}

/* Mobile-only "or contact us directly" strip */
.contact-direct {
    display: none;
    margin-top: 28px;
}

@media (max-width: 600px) {
    .contact-direct {
        display: block;
    }
}

.contact-direct .lbl {
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--pg-ink-faint);
}

.contact-direct a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    color: var(--pg-ink-strong);
    text-decoration: none;
    margin-top: 12px;
}

/* Scroll hint to below-the-fold map */
.contact-scrollhint {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 48px;
    font-family: var(--font-sans);
    font-size: 12.5px;
    color: var(--pg-ink-faint);
}

/* Form field grid */
.field-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.field--full {
    grid-column: 1 / -1;
}

.field-label {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 600;
    color: var(--pg-ink-strong);
}

.field-input {
    border: 1px solid var(--pg-hair-silver);
    border-radius: 4px;
    padding: 12px 14px;
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--pg-ink);
    background: var(--pg-face);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%;
}

.field-input:focus {
    border-color: var(--pg-gold);
    box-shadow: 0 0 0 3px rgba(166, 137, 102, 0.14);
}

.field-textarea {
    resize: vertical;
    min-height: 120px;
}

/* ============================================================
   WHY US PAGE
   ============================================================ */

/* Differentiator card grid */
.diff-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

@media (max-width: 760px) {
    .diff-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .diff-grid {
        grid-template-columns: 1fr;
    }
}

/* Comparison table */
.cmp {
    border: 1px solid var(--pg-hair-silver);
    border-radius: 6px;
    overflow: hidden;
}

.cmp-head {
    display: grid;
    grid-template-columns: 120px 1fr 1fr;
    padding: 18px 24px;
    background: var(--pg-mist);
    border-bottom: 1px solid var(--pg-hair);
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--pg-ink-soft);
}

.cmp-row {
    display: grid;
    grid-template-columns: 120px 1fr 1fr;
    padding: 20px 24px;
    border-bottom: 1px solid var(--pg-hair);
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--pg-ink);
    align-items: start;
}

.cmp-row:last-child {
    border-bottom: none;
}

/* ============================================================
   SOLUTION DETAIL PAGE
   ============================================================ */

/* Preview of the solution path at top of page */
.sol-path-preview {
    margin-top: 48px;
    border-top: 1px solid var(--pg-hair);
    padding-top: 28px;
}

/* Challenge cards grid */
.chal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 720px) {
    .chal-grid {
        grid-template-columns: 1fr;
    }
}

.chal-card {
    /* Extends .pcard */
    padding: 28px 26px;
}

/* Step list */
.step-list {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--pg-hair-silver);
}

.step-row {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 48px;
    padding: 40px 0;
    border-bottom: 1px solid var(--pg-hair-silver);
    align-items: start;
}

@media (max-width: 820px) {
    .step-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.step-id {
    display: flex;
    align-items: baseline;
    gap: 16px;
}

.step-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Deliverables inside solution detail */
.del-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

@media (max-width: 560px) {
    .del-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   NEWS INDEX PAGE
   ============================================================ */

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

@media (max-width: 860px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .news-grid {
        grid-template-columns: 1fr;
    }
}

/* Article card */
.art-card {
    /* Extends .pcard */
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    transition: transform 0.25s var(--ease-lux), box-shadow 0.25s var(--ease-lux);
}

.art-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

/* Card cover plate */
.art-cover {
    position: relative;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg, var(--pg-face) 0%, #E4E3DF 100%);
    border-bottom: 1px solid var(--pg-hair-silver);
    overflow: hidden;
}

/* Subtle grid texture overlay */
.art-cover::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
    background-size: 24px 24px;
}

/* Gold inlay border inside cover */
.art-cover::after {
    content: "";
    position: absolute;
    inset: 24px;
    border: 1px solid rgba(166, 137, 102, 0.3);
    border-radius: 3px;
    pointer-events: none;
}

/* Icon inside cover */
.art-cover-ic {
    position: relative;
    z-index: 1;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--pg-mist);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--pg-hair-silver);
}

/* Card body */
.art-body {
    padding: 22px 24px 28px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.art-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.art-cat {
    font-family: var(--font-serif);
    font-size: 11px;
    font-style: normal;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--pg-gold-deep);
    border: 1px solid rgba(166, 137, 102, 0.4);
    border-radius: 20px;
    padding: 3px 10px;
}

.art-date {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--pg-ink-faint);
}

.art-card-title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    color: var(--pg-ink-strong);
    margin: 0 0 10px;
    line-height: 1.3;
    transition: color 0.2s;
}

.art-card:hover .art-card-title {
    color: var(--pg-gold-deep);
}

.art-excerpt {
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--pg-ink-soft);
    line-height: 1.6;
    flex: 1;
}

/* Related articles grid at bottom of article page */
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

@media (max-width: 860px) {
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .related-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   ARTICLE DETAIL PAGE
   ============================================================ */

/* Hero cover plate on article detail */
.art-hero-cover {
    background: linear-gradient(145deg, var(--pg-face) 0%, #E4E3DF 100%);
    border: 1px solid var(--pg-hair-silver);
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    margin-top: 32px;
    overflow: hidden;
    position: relative;
}

/* Article body prose */
.art-body-text p {
    font-family: var(--font-sans);
    font-size: 17px;
    color: var(--pg-ink);
    line-height: 1.85;
    margin-bottom: 28px;
}

/* ============================================================
   CASE-STUDY ARCHIVE COVERS
   Typographic covers (accent grid + serif EN name + serial);
   accents cycle through the three pillar colors.
   ============================================================ */

.case-cover {
    position: relative;
    height: 190px;
    flex-shrink: 0;
    padding: 18px 20px;
    overflow: hidden;
    border-bottom: 1px solid var(--pg-hair-silver);
    background-color: var(--cc-bg);
    background-image:
        linear-gradient(to right, var(--cc-line) 1px, transparent 1px),
        linear-gradient(to bottom, var(--cc-line) 1px, transparent 1px);
    background-size: 34px 34px;
}

.case-cover--a {
    --cc-bg: #F2ECE6;
    --cc-line: rgba(155, 104, 74, 0.08);
    --cc-ink: #9B684A;
    --cc-soft: rgba(155, 104, 74, 0.35);
    --cc-frame: rgba(155, 104, 74, 0.28);
    --cc-serial: rgba(155, 104, 74, 0.30);
    --cc-tagsoft: rgba(155, 104, 74, 0.55);
}

.case-cover--b {
    --cc-bg: #EFEDE9;
    --cc-line: rgba(120, 109, 97, 0.09);
    --cc-ink: #786D61;
    --cc-soft: rgba(120, 109, 97, 0.35);
    --cc-frame: rgba(120, 109, 97, 0.30);
    --cc-serial: rgba(120, 109, 97, 0.30);
    --cc-tagsoft: rgba(120, 109, 97, 0.55);
}

.case-cover--c {
    --cc-bg: #EAE9E5;
    --cc-line: rgba(78, 76, 71, 0.08);
    --cc-ink: #4E4C47;
    --cc-soft: rgba(78, 76, 71, 0.32);
    --cc-frame: rgba(78, 76, 71, 0.26);
    --cc-serial: rgba(78, 76, 71, 0.28);
    --cc-tagsoft: rgba(78, 76, 71, 0.55);
}

.case-cover .cc-photo {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-cover .cc-wm {
    position: absolute;
    right: -30px;
    top: -34px;
    width: 150px;
    opacity: 0.06;
    pointer-events: none;
}

.case-cover .cc-frame {
    position: absolute;
    inset: 12px;
    border: 1px solid var(--cc-frame);
    pointer-events: none;
}

.case-cover .cc-top {
    position: relative;
    display: flex;
    justify-content: space-between;
}

.case-cover .cc-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--cc-ink);
}

.case-cover .cc-tag--soft {
    color: var(--cc-tagsoft);
}

.case-cover .cc-en {
    position: relative;
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 22px;
    line-height: 1.25;
    max-width: 230px;
    color: var(--cc-ink);
    margin-top: 22px;
}

.case-cover .cc-chips {
    position: absolute;
    left: 20px;
    bottom: 16px;
    display: flex;
    gap: 8px;
}

.case-cover .cc-chip {
    font-family: var(--font-mono);
    font-size: 9.5px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: 1px solid var(--cc-soft);
    color: var(--cc-ink);
    border-radius: 2px;
    padding: 2px 7px;
}

.case-cover .cc-serial {
    position: absolute;
    right: 18px;
    bottom: 6px;
    font-family: var(--font-mono);
    font-size: 64px;
    font-weight: 500;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--cc-serial);
}

@media (max-width: 600px) {
    .contact-form-card .btn {
        width: 100%;
        justify-content: center;
        padding: 14px 24px;
    }
}