/* =========================================
   闫宝龙 韩语网站建设 - 主样式表
   配色：墨黑 #0F1419 + 暖金 #C9A35C + 朱红 #C8102E + 象牙白 #F8F5F0
   ========================================= */

/* -------- Reset & Base -------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  font-family:
    "Noto Sans SC", "Noto Sans KR", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: #1a1a1a;
  background: #f8f5f0;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
ul,
ol {
  list-style: none;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}
button {
  font: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  color: inherit;
}
sup {
  font-size: 0.55em;
  vertical-align: super;
  font-weight: 400;
  margin-left: 2px;
}
:root {
  --ink: #0f1419;
  --ink-soft: #1f2630;
  --ink-2: #2a3340;
  --gold: #c9a35c;
  --gold-light: #d9b574;
  --gold-deep: #9b7e44;
  --vermillion: #c8102e;
  --vermillion-soft: #d83a52;
  --ivory: #f8f5f0;
  --ivory-2: #efe9dc;
  --ivory-3: #e5ddcb;
  --line: #d8cfbe;
  --line-soft: #e8e1d2;
  --text: #1a1a1a;
  --text-soft: #5a5a5a;
  --text-mute: #8a8a8a;
  --shadow-sm: 0 1px 2px rgba(15, 20, 25, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 20, 25, 0.08);
  --shadow-lg: 0 24px 60px rgba(15, 20, 25, 0.12);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --serif: "Noto Serif SC", serif;
  --sans: "Noto Sans SC", sans-serif;
  --kr: "Noto Sans KR", sans-serif;
  --display: "Cormorant Garamond", "Noto Serif SC", serif;
}

/* -------- Layout Container -------- */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
}

/* -------- 顶部导航 -------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(15, 20, 25, 0.55);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid transparent;
  transition:
    background 0.4s var(--ease),
    border-color 0.4s var(--ease),
    box-shadow 0.4s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(15, 20, 25, 0.92);
  border-bottom-color: rgba(201, 163, 92, 0.18);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
}
.nav-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  gap: 18px;
  height: 72px;
}
@media (max-width: 1280px) {
  .nav-container {
    gap: 12px;
    padding: 0 20px;
  }
  .brand-tag {
    display: none;
  }
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--ivory);
  font-family: var(--serif);
}
.brand-name {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.04em;
  position: relative;
  display: inline-flex;
  align-items: flex-start;
  white-space: nowrap;
}
.brand-tm {
  color: var(--gold);
  font-family: "Times New Roman", serif;
  margin-left: 4px;
}
.brand-sep {
  color: var(--gold);
  font-size: 18px;
  opacity: 0.7;
}
.brand-tag {
  font-size: 13px;
  font-weight: 400;
  font-family: var(--sans);
  letter-spacing: 0.04em;
  color: rgba(248, 245, 240, 0.85);
  white-space: nowrap;
}

.primary-nav {
  margin-left: auto;
}
.primary-nav ul {
  display: flex;
  gap: 6px;
}
.nav-link {
  position: relative;
  display: inline-block;
  padding: 10px 10px;
  font-size: 14px;
  font-weight: 400;
  color: rgba(248, 245, 240, 0.78);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition:
    width 0.3s var(--ease),
    left 0.3s var(--ease);
}
.nav-link:hover,
.nav-link.active {
  color: var(--ivory);
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 60%;
  left: 20%;
}

.nav-cta {
  margin-left: 8px;
}
.nav-phone {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 13.5px;
  font-weight: 500;
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}
.nav-phone:hover {
  background: var(--gold);
  color: var(--ink);
}

.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ivory);
  transition: all 0.3s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* 移动端抽屉 */
.mobile-drawer {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  z-index: 99;
  background: rgba(15, 20, 25, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 24px;
  transform: translateY(-110%);
  transition: transform 0.4s var(--ease);
  border-bottom: 1px solid rgba(201, 163, 92, 0.2);
}
.mobile-drawer.is-open {
  transform: translateY(0);
}
.mobile-drawer ul li a {
  display: block;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--ivory);
  font-size: 16px;
}
.mobile-drawer .m-phone {
  display: block;
  margin-top: 24px;
  padding: 14px;
  text-align: center;
  background: var(--gold);
  color: var(--ink);
  font-weight: 500;
  border-radius: 2px;
}

/* -------- 通用板块 -------- */
.section {
  padding: 120px 0;
  position: relative;
}
@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 72px;
}
.section-eyebrow {
  display: inline-block;
  font-family: var(--display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.32em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink);
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}
.section-sub {
  font-size: 15.5px;
  color: var(--text-soft);
  line-height: 1.85;
}
.section-head-light .section-title {
  color: var(--ivory);
}
.section-head-light .section-sub {
  color: rgba(248, 245, 240, 0.78);
}
.section-head-light {
  color: var(--ivory);
}

/* -------- Banner -------- */
.banner {
  position: relative;
  min-height: 100vh;
  padding: 120px 0 80px;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--ivory);
}
.banner-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.banner-bg-img {
  position: absolute;
  inset: 0;
  background-image: url("https://images.unsplash.com/photo-1542051841857-5f90071e7989?auto=format&fit=crop&w=1920&q=80");
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: bannerZoom 18s ease-in-out infinite alternate;
}
@keyframes bannerZoom {
  from {
    transform: scale(1.05);
  }
  to {
    transform: scale(1.18);
  }
}
.banner-bg-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      120deg,
      rgba(15, 20, 25, 0.85) 0%,
      rgba(15, 20, 25, 0.7) 50%,
      rgba(15, 20, 25, 0.45) 100%
    ),
    linear-gradient(
      180deg,
      rgba(15, 20, 25, 0.3) 0%,
      rgba(15, 20, 25, 0.7) 100%
    );
}
.banner-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201, 163, 92, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 163, 92, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: linear-gradient(
    180deg,
    transparent,
    rgba(0, 0, 0, 0.6) 30%,
    rgba(0, 0, 0, 0.6) 70%,
    transparent
  );
  -webkit-mask-image: linear-gradient(
    180deg,
    transparent,
    rgba(0, 0, 0, 0.6) 30%,
    rgba(0, 0, 0, 0.6) 70%,
    transparent
  );
}

.banner-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}
.banner-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--display);
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeUp 1s var(--ease) 0.2s forwards;
}
.eyebrow-line {
  width: 48px;
  height: 1px;
  background: var(--gold);
}
.banner-title {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.04em;
  margin-bottom: 28px;
}
.title-line {
  display: block;
  opacity: 0;
  animation: fadeUp 1.1s var(--ease) forwards;
}
.title-line-1 {
  font-size: clamp(40px, 7vw, 88px);
  animation-delay: 0.3s;
  color: var(--ivory);
}
.title-line-2 {
  font-size: clamp(18px, 2.4vw, 26px);
  color: rgba(201, 163, 92, 0.9);
  font-weight: 400;
  letter-spacing: 0.12em;
  animation-delay: 0.55s;
}

.banner-desc {
  font-size: 16.5px;
  line-height: 2;
  color: rgba(248, 245, 240, 0.85);
  max-width: 760px;
  margin-bottom: 44px;
  opacity: 0;
  animation: fadeUp 1.1s var(--ease) 0.75s forwards;
}
.banner-desc strong {
  color: var(--gold-light);
  font-weight: 500;
}

.banner-actions {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 80px;
  opacity: 0;
  animation: fadeUp 1.1s var(--ease) 0.95s forwards;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.06em;
  border-radius: 2px;
  transition: all 0.35s var(--ease);
  cursor: pointer;
}
.btn-primary {
  background: var(--gold);
  color: var(--ink);
  border: 1px solid var(--gold);
}
.btn-primary:hover {
  background: transparent;
  color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(201, 163, 92, 0.25);
}
.btn-ghost {
  background: transparent;
  color: var(--ivory);
  border: 1px solid rgba(248, 245, 240, 0.4);
}
.btn-ghost:hover {
  border-color: var(--ivory);
  background: rgba(248, 245, 240, 0.06);
  transform: translateY(-2px);
}

.banner-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: 820px;
  padding-top: 32px;
  border-top: 1px solid rgba(201, 163, 92, 0.25);
  opacity: 0;
  animation: fadeUp 1.1s var(--ease) 1.15s forwards;
}
.banner-stats li {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding-right: 24px;
  border-right: 1px solid rgba(201, 163, 92, 0.18);
}
.banner-stats li:last-child {
  border-right: 0;
}
.banner-stats .stat-num {
  font-family: var(--display);
  font-size: 44px;
  font-weight: 600;
  color: var(--gold);
  line-height: 1;
  display: inline-block;
}
.banner-stats .stat-suffix {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--gold-light);
  margin-left: 2px;
  display: inline-block;
  transform: translateY(-12px);
}
.banner-stats .stat-label {
  font-size: 13.5px;
  color: rgba(248, 245, 240, 0.7);
  letter-spacing: 0.04em;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.banner-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-size: 11px;
  letter-spacing: 0.32em;
  color: rgba(248, 245, 240, 0.6);
  opacity: 0;
  animation: fadeUp 1.2s var(--ease) 1.4s forwards;
}
.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(180deg, var(--gold), transparent);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 18px;
  background: var(--gold);
  animation: scrollLine 2.2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% {
    top: -18px;
  }
  100% {
    top: 50px;
  }
}

.banner-deco {
  position: absolute;
  z-index: 1;
  font-family: var(--serif);
  color: rgba(201, 163, 92, 0.05);
  font-weight: 600;
  user-select: none;
  pointer-events: none;
  line-height: 1;
}
.banner-deco-1 {
  top: 18%;
  right: 6%;
  font-size: clamp(140px, 18vw, 280px);
  writing-mode: vertical-rl;
  letter-spacing: 0.05em;
}
.banner-deco-2 {
  bottom: 8%;
  right: 18%;
  font-size: clamp(80px, 10vw, 160px);
  writing-mode: vertical-rl;
  letter-spacing: 0.05em;
  color: rgba(200, 16, 46, 0.06);
}
@media (max-width: 768px) {
  .banner-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 12px;
  }
  .banner-stats li {
    border-right: 0;
    padding-right: 0;
  }
  .banner-stats li:nth-child(odd) {
    border-right: 1px solid rgba(201, 163, 92, 0.18);
    padding-right: 16px;
  }
  .banner-deco-1 {
    font-size: 120px;
    top: 8%;
    right: -20px;
  }
  .banner-deco-2 {
    display: none;
  }
}

/* -------- 服务概览 -------- */
.section-services {
  background: var(--ivory);
  position: relative;
}
.section-services::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.5;
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.service-card {
  background: var(--ivory);
  padding: 48px 36px;
  transition: all 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--vermillion));
  transition: width 0.5s var(--ease);
}
.service-card:hover {
  background: #fff;
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.service-card:hover::before {
  width: 100%;
}
.service-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 50%;
  margin-bottom: 24px;
  transition: all 0.4s var(--ease);
}
.service-card:hover .service-icon {
  background: var(--ink);
  color: var(--gold);
  border-color: var(--ink);
}
.service-card h3 {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}
.service-card p {
  font-size: 14.5px;
  color: var(--text-soft);
  line-height: 1.8;
  margin-bottom: 20px;
}
.service-tag {
  display: inline-block;
  padding: 5px 12px;
  font-size: 12.5px;
  color: var(--gold-deep);
  background: rgba(201, 163, 92, 0.1);
  border-radius: 2px;
  letter-spacing: 0.06em;
}
@media (max-width: 992px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .service-grid {
    grid-template-columns: 1fr;
  }
  .service-card {
    padding: 36px 28px;
  }
}

/* -------- 关于闫宝龙 -------- */
.section-about {
  background: #fff;
  position: relative;
  overflow: hidden;
}
.section-about::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -180px;
  width: 480px;
  height: 480px;
  background: radial-gradient(
    circle,
    rgba(201, 163, 92, 0.08),
    transparent 70%
  );
  border-radius: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}
.about-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.about-photo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.photo-frame {
  position: relative;
  width: 100%;
  max-width: 380px;
  border: 1px solid var(--line);
  background: var(--ivory);
  padding: 18px 18px 56px;
  box-shadow: var(--shadow-md);
}
.photo-frame::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(201, 163, 92, 0.3);
  pointer-events: none;
}
.photo-frame img {
  width: 100%;
  height: auto;
  filter: grayscale(0.15) contrast(1.02);
}
.photo-stamp {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--vermillion);
  letter-spacing: 0.3em;
  border: 2px solid var(--vermillion);
  padding: 4px 18px;
  border-radius: 2px;
}
.photo-meta {
  display: flex;
  gap: 24px;
  font-size: 13px;
  color: var(--text-soft);
  font-family: var(--display);
  letter-spacing: 0.16em;
}
.about-text .section-eyebrow {
  display: block;
  text-align: left;
  margin-bottom: 18px;
}
.about-text .section-title {
  text-align: left;
}
.about-text > p {
  font-size: 15px;
  color: var(--text-soft);
  line-height: 1.95;
  margin-bottom: 14px;
}
.about-text > p strong {
  color: var(--ink);
  font-weight: 500;
  background: linear-gradient(
    180deg,
    transparent 70%,
    rgba(201, 163, 92, 0.25) 70%
  );
  padding: 0 2px;
}
.about-lead {
  font-size: 16px !important;
  color: var(--ink) !important;
  font-weight: 500;
}

.about-points {
  margin: 32px 0 36px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.about-points li {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.point-num {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--display);
  font-size: 18px;
  font-weight: 600;
  color: var(--gold);
  border: 1px solid var(--gold);
  border-radius: 50%;
}
.about-points h4 {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
.about-points p {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.7;
  margin: 0;
}

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  color: var(--ink);
  font-weight: 500;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 4px;
  transition: all 0.3s var(--ease);
}
.btn-link:hover {
  color: var(--gold);
  border-color: var(--gold);
  gap: 12px;
}

@media (max-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }
  .about-photo {
    order: 2;
  }
  .about-text {
    order: 1;
  }
  .about-text .section-eyebrow,
  .about-text .section-title {
    text-align: center;
  }
  .about-text > p {
    text-align: center;
  }
  .about-points li {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
  }
}
@media (max-width: 600px) {
  .photo-frame {
    max-width: 280px;
    padding: 12px 12px 48px;
  }
  .photo-stamp {
    font-size: 14px;
    letter-spacing: 0.2em;
    bottom: 10px;
    padding: 3px 14px;
  }
}

/* -------- 四大优势 -------- */
.section-advantages {
  background: var(--ink);
  color: var(--ivory);
  position: relative;
  overflow: hidden;
}
.section-advantages::before {
  content: "優勢";
  position: absolute;
  top: 50%;
  left: -30px;
  transform: translateY(-50%);
  font-family: var(--serif);
  font-size: 280px;
  font-weight: 600;
  color: rgba(201, 163, 92, 0.04);
  letter-spacing: 0.3em;
  pointer-events: none;
  user-select: none;
  writing-mode: vertical-rl;
}
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 1;
}
.advantage-item {
  padding: 48px 28px 44px;
  border: 1px solid rgba(201, 163, 92, 0.18);
  position: relative;
  transition: all 0.4s var(--ease);
  background: rgba(255, 255, 255, 0.02);
}
.advantage-item:hover {
  background: rgba(201, 163, 92, 0.06);
  border-color: rgba(201, 163, 92, 0.4);
  transform: translateY(-6px);
}
.advantage-num {
  display: block;
  font-family: var(--display);
  font-size: 48px;
  font-weight: 600;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}
.advantage-item h3 {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--ivory);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}
.advantage-item p {
  font-size: 14px;
  color: rgba(248, 245, 240, 0.72);
  line-height: 1.85;
}
@media (max-width: 992px) {
  .advantage-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .advantage-grid {
    grid-template-columns: 1fr;
  }
}

/* -------- 合作流程 -------- */
.section-process {
  background: var(--ivory-2);
  position: relative;
}
.process-timeline {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  position: relative;
}
.process-timeline::before {
  content: "";
  position: absolute;
  top: 34px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--gold) 10%,
    var(--gold) 90%,
    transparent
  );
  z-index: 0;
}
.process-step {
  text-align: center;
  padding: 0 12px;
  position: relative;
  z-index: 1;
}
.process-step::before {
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  background: var(--gold);
  border: 4px solid var(--ivory-2);
  border-radius: 50%;
  margin: 25px auto 28px;
  box-shadow: 0 0 0 1px var(--gold);
}
.step-num {
  display: block;
  font-family: var(--display);
  font-size: 12px;
  font-weight: 500;
  color: var(--gold-deep);
  letter-spacing: 0.28em;
  margin-bottom: 8px;
}
.process-step h4 {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}
.process-step p {
  font-size: 13.5px;
  color: var(--text-soft);
  line-height: 1.7;
}
@media (max-width: 992px) {
  .process-timeline {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 48px;
  }
  .process-timeline::before {
    display: none;
  }
}
@media (max-width: 600px) {
  .process-timeline {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* -------- FAQ -------- */
.section-faq {
  background: #fff;
}
.faq-list {
  max-width: 920px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
}
.faq-item {
  border-bottom: 1px solid var(--line);
  transition: background 0.3s var(--ease);
}
.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 28px 0;
  cursor: pointer;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
  list-style: none;
  transition: color 0.3s var(--ease);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary:hover {
  color: var(--gold-deep);
}
.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  position: relative;
  transition: transform 0.3s var(--ease);
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--ink);
  transition: transform 0.3s var(--ease);
}
.faq-icon::before {
  width: 14px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}
.faq-icon::after {
  width: 1.5px;
  height: 14px;
  transform: translate(-50%, -50%);
}
.faq-item[open] .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}
.faq-item[open] .faq-icon::before {
  background: var(--gold);
}
.faq-item[open] summary {
  color: var(--ink);
  font-weight: 600;
}
.faq-answer {
  padding: 0 0 28px;
  max-width: 780px;
  font-size: 15px;
  color: var(--text-soft);
  line-height: 1.9;
  animation: faqOpen 0.35s var(--ease);
}
@keyframes faqOpen {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (max-width: 600px) {
  .faq-item summary {
    font-size: 15.5px;
    padding: 22px 0;
    gap: 16px;
  }
  .faq-answer {
    font-size: 14px;
    padding-bottom: 22px;
  }
}

/* -------- 联系方式 -------- */
.section-contact {
  background: linear-gradient(180deg, var(--ink) 0%, #0a0d12 100%);
  color: var(--ivory);
  position: relative;
  overflow: hidden;
}
.section-contact::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(201, 163, 92, 0.12),
    transparent 60%
  );
  border-radius: 50%;
  pointer-events: none;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}
.contact-card {
  padding: 40px 28px;
  border: 1px solid rgba(201, 163, 92, 0.18);
  background: rgba(255, 255, 255, 0.02);
  text-align: center;
  transition: all 0.4s var(--ease);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.contact-card:hover {
  background: rgba(201, 163, 92, 0.06);
  border-color: rgba(201, 163, 92, 0.4);
  transform: translateY(-4px);
}
.contact-label {
  font-family: var(--display);
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.contact-card h3 {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 600;
  color: var(--ivory);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}
.contact-card p {
  font-size: 13.5px;
  color: rgba(248, 245, 240, 0.7);
  margin-bottom: 24px;
  line-height: 1.7;
  flex-grow: 1;
}
.contact-btn {
  display: inline-block;
  padding: 10px 24px;
  font-size: 13.5px;
  color: var(--gold);
  border: 1px solid var(--gold);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}
.contact-btn:hover {
  background: var(--gold);
  color: var(--ink);
}
.contact-btn-static {
  cursor: default;
}

.contact-qr .qr-wrap {
  width: 140px;
  height: 140px;
  background: #fff;
  padding: 8px;
  margin-bottom: 18px;
  border-radius: 2px;
}
.contact-qr .qr-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.contact-qr p {
  font-size: 13px;
  margin-bottom: 0;
}

@media (max-width: 992px) {
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* -------- 服务矩阵 -------- */
.section-matrix {
  background: var(--ivory);
  position: relative;
}
.matrix-wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
}
.matrix-col h3 {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--gold);
  position: relative;
  letter-spacing: 0.04em;
}
.matrix-col h3::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 48px;
  height: 2px;
  background: var(--gold);
}
.matrix-col ul li {
  margin-bottom: 8px;
}
.matrix-col ul li a {
  display: inline-block;
  font-size: 14px;
  color: var(--text-soft);
  padding: 4px 0;
  transition: all 0.25s var(--ease);
  border-bottom: 1px solid transparent;
}
.matrix-col ul li a:hover {
  color: var(--vermillion);
  padding-left: 6px;
  border-bottom-color: var(--vermillion);
}
.matrix-col ul li a.active {
  color: var(--vermillion);
  font-weight: 500;
}
@media (max-width: 992px) {
  .matrix-wrap {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px;
  }
}
@media (max-width: 600px) {
  .matrix-wrap {
    grid-template-columns: 1fr;
  }
}

/* -------- 底部 Footer -------- */
.site-footer {
  background: #0a0d12;
  color: rgba(248, 245, 240, 0.7);
  padding: 60px 0 32px;
  border-top: 1px solid rgba(201, 163, 92, 0.15);
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 48px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.footer-brand .brand {
  font-size: 18px;
}
.footer-brand .brand-name {
  font-size: 20px;
}
.footer-slogan {
  margin-top: 14px;
  font-size: 13.5px;
  color: rgba(248, 245, 240, 0.55);
  letter-spacing: 0.16em;
  font-family: var(--display);
}
.footer-contact {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}
.footer-contact li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-contact li span {
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.footer-contact li a {
  font-size: 15px;
  color: var(--ivory);
  font-weight: 500;
  transition: color 0.25s var(--ease);
}
.footer-contact li a:hover {
  color: var(--gold);
}

.footer-divider {
  height: 1px;
  background: rgba(201, 163, 92, 0.15);
  margin: 0 0 24px;
}

.footer-bot {
  text-align: center;
}
.footer-bot p {
  font-size: 13px;
  color: rgba(248, 245, 240, 0.55);
  line-height: 2;
  letter-spacing: 0.04em;
}
.footer-bot .copyright a {
  color: var(--ivory);
  font-weight: 500;
}
.footer-bot .copyright a:hover {
  color: var(--gold);
}
.footer-bot .beian a {
  color: rgba(248, 245, 240, 0.7);
  transition: color 0.25s var(--ease);
}
.footer-bot .beian a:hover {
  color: var(--gold);
}
.beian-sep {
  margin: 0 12px;
  color: rgba(201, 163, 92, 0.4);
}
.keywords-line {
  margin-top: 14px !important;
  font-size: 12px !important;
  color: rgba(248, 245, 240, 0.4) !important;
  letter-spacing: 0.04em;
}

@media (max-width: 600px) {
  .footer-top {
    flex-direction: column;
    gap: 28px;
  }
  .footer-contact {
    gap: 24px;
  }
  .beian-sep {
    display: block;
    margin: 6px 0;
    text-align: center;
  }
}

/* -------- 悬浮工具栏 -------- */
.floating {
  position: fixed;
  right: 24px;
  bottom: 80px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.float-btn {
  width: 54px;
  height: 54px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(15, 20, 25, 0.92);
  color: var(--ivory);
  border: 1px solid rgba(201, 163, 92, 0.25);
  border-radius: 2px;
  font-size: 11px;
  letter-spacing: 0.06em;
  transition: all 0.3s var(--ease);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.float-btn svg {
  margin-bottom: 2px;
}
.float-btn:hover {
  background: var(--gold);
  color: var(--ink);
  border-color: var(--gold);
  transform: translateX(-4px);
}
.float-top {
  opacity: 0;
  visibility: hidden;
  transform: translateX(20px);
}
.float-top.is-show {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}
@media (max-width: 600px) {
  .floating {
    right: 12px;
    bottom: 60px;
  }
  .float-btn {
    width: 48px;
    height: 48px;
    font-size: 10px;
  }
}

/* -------- 滚动渐入动画 -------- */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition:
    opacity 0.9s var(--ease),
    transform 0.9s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* -------- 响应式导航 -------- */
@media (max-width: 992px) {
  .primary-nav,
  .nav-cta {
    display: none;
  }
  .nav-toggle {
    display: flex;
    margin-left: auto;
  }
}

/* -------- 滚动行为 -------- */
html {
  scroll-padding-top: 80px;
}

/* -------- 选中文字样式 -------- */
::selection {
  background: var(--gold);
  color: var(--ink);
}
::-moz-selection {
  background: var(--gold);
  color: var(--ink);
}

/* -------- 滚动条样式（Webkit） -------- */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--ivory-2);
}
::-webkit-scrollbar-thumb {
  background: var(--gold-deep);
  border-radius: 0;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--gold);
}