/* 链鼎装饰 — 静态官网样式 */

:root {
  --ink: #1a1a1a;
  --ink-soft: #3d3a36;
  --cream: #faf8f5;
  --cream-dark: #ebe6de;
  --accent: #8b6914;
  --accent-light: #c9a227;
  --line: rgba(26, 26, 26, 0.1);
  --shadow: 0 20px 50px rgba(26, 26, 26, 0.08);
  --radius: 12px;
  --font: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-display: Georgia, "Songti SC", "SimSun", serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink-soft);
  background: var(--cream);
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

/* ----- Header ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
  letter-spacing: 0.02em;
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
  color: var(--accent);
}

.logo span {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--ink-soft);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 0.15rem;
}


.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.45rem 0.65rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav a {
  color: var(--ink-soft);
  font-size: 0.95rem;
  text-decoration: none;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--accent);
  text-decoration: none;
}

.nav .cta-link {
  background: var(--ink);
  color: var(--cream) !important;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.88rem;
}

.nav .cta-link:hover {
  background: var(--accent);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 4vw 1.25rem;
    background: var(--cream);
    border-bottom: 1px solid var(--line);
    gap: 0;
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--line);
  }

  .nav .cta-link {
    text-align: center;
    margin-top: 0.5rem;
    border: none;
  }
}

/* ----- Hero ----- */
.hero {
  padding: 4rem 0 4.5rem;
  background: linear-gradient(160deg, #2a2419 0%, #1a1612 45%, #3d3428 100%);
  color: #e8e4dc;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 70% 20%, rgba(201, 162, 39, 0.12), transparent);
  pointer-events: none;
}

.hero .wrap {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4.5vw, 2.75rem);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 1rem;
  color: #fff;
}

.hero .tagline {
  font-size: 1.05rem;
  opacity: 0.9;
  max-width: 36rem;
  margin: 0 0 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-block;
  padding: 0.65rem 1.35rem;
  border-radius: 999px;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent-light);
  color: #1a1408;
}

.btn-primary:hover {
  filter: brightness(1.08);
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  color: #e8e4dc;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  text-decoration: none;
}

/* ----- Sections ----- */
section {
  padding: 4rem 0;
}

section.alt {
  background: #fff;
}

.section-head {
  text-align: center;
  max-width: 38rem;
  margin: 0 auto 2.75rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--ink);
  margin: 0 0 0.75rem;
}

.section-head p {
  margin: 0;
  color: var(--ink-soft);
}

/* About */
.about-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

.about-card {
  background: #fff;
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}

.about-card h3 {
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0 0 1rem;
  font-size: 1.2rem;
}

.about-card ul {
  margin: 0;
  padding-left: 1.1rem;
}

.about-card li {
  margin-bottom: 0.5rem;
}

.slogan-box {
  margin-top: 2rem;
  padding: 1.5rem 1.75rem;
  background: linear-gradient(135deg, #2a2419, #4a3f32);
  color: #f0ebe3;
  border-radius: var(--radius);
  text-align: center;
  font-size: 1.15rem;
  font-family: var(--font-display);
  letter-spacing: 0.06em;
}

/* Services */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

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

.service-card {
  background: var(--cream-dark);
  padding: 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  height: 100%;
}

.service-card h3 {
  font-size: 1.05rem;
  color: var(--ink);
  margin: 0 0 0.75rem;
}

.service-card p {
  margin: 0;
  font-size: 0.95rem;
}

/* Case cards */
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (max-width: 700px) {
  .case-grid {
    grid-template-columns: 1fr;
  }
}

.case-card {
  display: block;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s, box-shadow 0.2s;
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 60px rgba(26, 26, 26, 0.12);
  text-decoration: none;
}

.case-card-visual {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #e5e1d9;
}

.case-card-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.4s ease;
}

.case-card:hover .case-card-visual img {
  transform: scale(1.045);
}

.case-card-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.75rem 1.25rem 1rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.72));
  color: #fff;
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  font-weight: 600;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.45);
  line-height: 1.3;
  pointer-events: none;
}

.case-card-body {
  padding: 1.25rem 1.5rem 1.5rem;
}

.case-card-body h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  color: var(--ink);
}

.case-card-body p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.case-meta {
  font-size: 0.82rem;
  color: var(--accent);
  margin-top: 0.5rem;
}

/* Contact strip */
.contact-strip {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: center;
  box-shadow: var(--shadow);
}

@media (max-width: 640px) {
  .contact-strip {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

.contact-strip h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  color: var(--ink);
  font-size: 1.35rem;
}

.contact-strip p {
  margin: 0;
}

.contact-strip .phone {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

/* Footer */
.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.75);
  padding: 2.5rem 0;
  font-size: 0.9rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

.site-footer strong {
  color: #fff;
}

.site-footer a {
  color: var(--accent-light);
}

/* ----- Case article ----- */
.case-hero {
  padding: 3rem 0 2rem;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.case-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  color: var(--ink);
  margin: 0 0 1.25rem;
  line-height: 1.35;
}

.meta-table {
  width: 100%;
  max-width: 480px;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.meta-table th,
.meta-table td {
  padding: 0.45rem 0.75rem 0.45rem 0;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.meta-table th {
  color: var(--ink-soft);
  font-weight: 500;
  width: 7rem;
  white-space: nowrap;
}

.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

.article-body h2 {
  font-family: var(--font-display);
  color: var(--ink);
  font-size: 1.35rem;
  margin: 2rem 0 1rem;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body p {
  margin: 0 0 1rem;
}

.figure-placeholder {
  margin: 2rem 0;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--cream-dark), #c4bbb0);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-soft);
  font-size: 0.9rem;
  border: 1px dashed rgba(26, 26, 26, 0.2);
  padding: 1rem;
  text-align: center;
}

.figure-placeholder code {
  font-size: 0.72rem;
  word-break: break-all;
}

.back-link {
  display: inline-block;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.closing {
  margin-top: 2.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--cream-dark);
  border-radius: var(--radius);
  border-left: 4px solid var(--accent);
  font-size: 0.95rem;
}

/* ----- 实景长图项目展示（对标公众号长图文布局） ----- */
.showcase-page {
  background: #efede8;
}

.showcase-page .case-hero {
  background: #fff;
  padding-bottom: 1.5rem;
}

.showcase-header {
  background: #fff;
  padding: 0 0 1rem;
  border-bottom: 1px solid var(--line);
}

.showcase-inner {
  width: min(720px, 100%);
  margin: 0 auto;
  padding: 0 1.15rem;
}

.showcase-issue {
  text-align: center;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: #888;
  margin: 0 0 0.65rem;
}

.showcase-title-main {
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 4.2vw, 1.7rem);
  line-height: 1.45;
  color: var(--ink);
  margin: 0 0 0.65rem;
  font-weight: 600;
}

.showcase-taglines {
  text-align: center;
  color: #666;
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0 0 1.25rem;
}

.showcase-brand-line {
  text-align: center;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: #aaa;
  margin: 0 0 1.5rem;
}

.showcase-meta-list {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0.2rem 0;
  background: #fafafa;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.showcase-meta-list li {
  display: flex;
  gap: 0.75rem;
  padding: 0.55rem 1.25rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  font-size: 0.9rem;
  align-items: baseline;
}

.showcase-meta-list li:last-child {
  border-bottom: 0;
}

.showcase-meta-list .meta-key {
  color: #888;
  flex: 0 0 5.75rem;
  white-space: nowrap;
}

.showcase-meta-list .meta-val {
  color: var(--ink);
  flex: 1;
}

.showcase-lead {
  font-size: 0.98rem;
  line-height: 1.9;
  color: #444;
  margin: 0 0 0.25rem;
}

.showcase-longform-wrap {
  padding: 2rem 0 3rem;
}

.showcase-longform {
  margin: 0;
  padding: 0;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 12px 48px rgba(26, 26, 26, 0.08);
  border: 1px solid var(--line);
}

.showcase-longform img {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: middle;
}

.showcase-longform figcaption {
  padding: 0.75rem 1rem;
  font-size: 0.8rem;
  color: #888;
  text-align: center;
  background: #fafafa;
  border-top: 1px solid var(--line);
}

.showcase-section-heading {
  text-align: center;
  margin: 2.25rem 0 1.25rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--ink);
  position: relative;
  font-weight: 600;
}

.showcase-section-heading span {
  background: #efede8;
  padding: 0 1rem;
  position: relative;
  z-index: 1;
}

.showcase-section-heading::before {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  top: 50%;
  height: 1px;
  background: #ccc;
  z-index: 0;
}

.designer-showcase {
  background: linear-gradient(145deg, #1a1815 0%, #2c2620 55%, #1f1c18 100%);
  color: #ebe6df;
  padding: 1.75rem 1.5rem 2rem;
  border-radius: var(--radius);
  margin: 0 0 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.designer-showcase .designer-brand {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: #c9a227;
  margin: 0 0 0.35rem;
}

.designer-showcase .designer-name {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
  color: #fff;
}

.designer-showcase .designer-title {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.65);
  margin: 0 0 1rem;
}

.designer-showcase p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: rgba(235, 230, 223, 0.9);
}

.showcase-caption {
  margin: 0 0 1.5rem;
  padding: 0.85rem 0 0.85rem 1rem;
  border-left: 3px solid var(--accent-light);
  font-size: 0.92rem;
  color: #555;
  line-height: 1.8;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.showcase-subhead {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  margin: 1.5rem 0 0.65rem;
}

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

/* 案例页：长图版式拆解后的图文流 */
.showcase-flow {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.15rem 3.5rem;
}

.showcase-flow figure {
  margin: 1.35rem 0;
  padding: 0;
  line-height: 0;
}

.showcase-flow figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(26, 26, 26, 0.08);
  border: 1px solid var(--line);
}

.showcase-flow .designer-showcase {
  margin-bottom: 1.5rem;
}

.showcase-flow .designer-showcase p:last-child {
  margin-bottom: 0;
}