/* ============================================================
   锤锤网络官网 — 全局样式
   品牌色：普鲁士蓝 #1B3A5C | 金色 #C4A35A | 暖白 #F5F0EB
   ============================================================ */

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  background: #FAFAF8;
  color: #1B3A5C;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ---- Logo text (always white on dark navbar) ---- */
.logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: .04em;
  color: #fff;
}

/* ---- CSS Variables ---- */
:root {
  --navy: #1B3A5C;
  --navy-dark: #0f2440;
  --navy-mid: #2a4f72;
  --gold: #C4A35A;
  --gold-light: #d9bc7e;
  --warm: #F5F0EB;
  --warm-dark: #e8e0d5;
  --text-muted: #7a6e60;
  --white: #FFFFFF;
  --shadow-sm: 0 2px 8px rgba(27,58,92,.08);
  --shadow-md: 0 4px 20px rgba(27,58,92,.12);
  --shadow-lg: 0 8px 40px rgba(27,58,92,.16);
  --radius: 10px;
  --radius-lg: 16px;
  --transition: 0.28s ease;
  --max-w: 1180px;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--navy);
}
h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.2rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
p { color: #3a4f65; line-height: 1.8; }

/* ---- Layout Utilities ---- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 56px 0; }
.section-title {
  text-align: center;
  margin-bottom: 56px;
}
.section-title h2 {
  position: relative;
  display: inline-block;
  padding-bottom: 16px;
}
.section-title h2::after {
  content: "";
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 48px; height: 3px;
  background: var(--gold);
  border-radius: 2px;
}
.section-title p {
  margin-top: 16px;
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.tag {
  display: inline-block;
  background: rgba(196,163,90,.12);
  color: var(--gold);
  border: 1px solid rgba(196,163,90,.3);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  padding: 3px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.badge {
  display: inline-block;
  background: var(--navy);
  color: var(--gold);
  font-size: .72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: .05em;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: .92rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  letter-spacing: .04em;
}
.btn-primary {
  background: var(--gold);
  color: var(--navy-dark);
}
.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(196,163,90,.35);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--white);
}
.btn-navy {
  background: var(--navy);
  color: var(--white);
}
.btn-navy:hover {
  background: var(--navy-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 64px;
  background: rgba(27,58,92,.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(196,163,90,.2);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(15,36,64,.98);
  box-shadow: 0 2px 24px rgba(0,0,0,.25);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  color: var(--white);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: .04em;
}
.nav-logo .logo-icon {
  width: 36px; height: 36px;
  background: var(--gold);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  color: var(--navy-dark);
  font-weight: 900;
}
.nav-logo .logo-sub {
  font-size: .7rem;
  color: rgba(255,255,255,.5);
  display: block;
  font-weight: 400;
  line-height: 1.2;
}
.nav-links {
  display: flex; align-items: center; gap: 4px;
  list-style: none;
}
.nav-links a {
  display: flex; align-items: center; gap: 4px;
  padding: 8px 14px;
  color: rgba(255,255,255,.8);
  font-size: .88rem;
  border-radius: 6px;
  transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--gold);
  background: rgba(196,163,90,.1);
}
.nav-links .dropdown { position: relative; }
.nav-links .dropdown-menu {
  display: none;
  position: absolute; top: 100%; left: 0;
  min-width: 180px;
  background: var(--navy-dark);
  border: 1px solid rgba(196,163,90,.2);
  border-radius: var(--radius);
  padding: 8px 0;
  box-shadow: var(--shadow-lg);
  z-index: 100;
}
.nav-links .dropdown:hover .dropdown-menu { display: block; }
.nav-links .dropdown-menu a {
  border-radius: 0;
  padding: 10px 18px;
  font-size: .85rem;
}
.nav-cta {
  background: var(--gold) !important;
  color: var(--navy-dark) !important;
  padding: 8px 18px !important;
  border-radius: 6px !important;
  font-weight: 700 !important;
}
.nav-cta:hover { background: var(--gold-light) !important; }
.nav-hamburger {
  display: none;
  flex-direction: column; gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  min-height: 100vh;
  background: linear-gradient(160deg, var(--navy-dark) 0%, var(--navy) 50%, #1e4d7a 100%);
  position: relative;
  overflow: hidden;
  display: flex; align-items: center;
  padding-top: 64px;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23C4A35A' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
}
.hero-content {
  position: relative; z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto; padding: 0 24px;
  width: 100%;
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.hero-left .overline {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.hero-left .overline::before {
  content: "";
  display: block; width: 32px; height: 2px;
  background: var(--gold);
}
.hero-left h1 {
  color: var(--white);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.2;
  margin-bottom: 24px;
}
.hero-left h1 em {
  font-style: normal;
  color: var(--gold);
}
.hero-left p {
  color: rgba(255,255,255,.72);
  font-size: 1.05rem;
  margin-bottom: 36px;
  max-width: 520px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 36px; margin-top: 48px;
}
.hero-stat-item {}
.hero-stat-item .num {
  font-size: 2rem; font-weight: 800;
  color: var(--gold);
  line-height: 1;
  display: block;
}
.hero-stat-item .label {
  font-size: .8rem;
  color: rgba(255,255,255,.55);
  margin-top: 4px;
}
.hero-right {
  display: flex; flex-direction: column; gap: 16px;
}
.hero-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(196,163,90,.2);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(8px);
  transition: var(--transition);
  cursor: pointer;
}
.hero-card:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(196,163,90,.5);
  transform: translateX(6px);
}
.hero-card .card-head {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 10px;
}
.hero-card .card-icon {
  width: 40px; height: 40px;
  background: rgba(196,163,90,.15);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.hero-card .card-title {
  font-size: 1rem; font-weight: 700;
  color: var(--white);
}
.hero-card .card-sub {
  font-size: .78rem;
  color: rgba(255,255,255,.5);
}
.hero-card p {
  color: rgba(255,255,255,.65);
  font-size: .88rem;
  line-height: 1.6;
}
.hero-card .card-arrow {
  margin-top: 10px;
  font-size: .8rem;
  color: var(--gold);
  font-weight: 600;
}

/* ============================================================
   SECTIONS — GENERAL
   ============================================================ */
.bg-warm { background: var(--warm); }
.bg-navy {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  color: var(--white);
}
.bg-navy h2, .bg-navy h3 { color: var(--white); }
.bg-navy p { color: rgba(255,255,255,.75); }
.bg-navy .section-title h2::after { background: var(--gold); }

/* ============================================================
   BUSINESS CARDS GRID
   ============================================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.biz-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--warm-dark);
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.biz-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
}
.biz-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(196,163,90,.3);
}
.biz-card .card-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, rgba(196,163,90,.15), rgba(196,163,90,.05));
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  border: 1px solid rgba(196,163,90,.2);
}
.biz-card h3 { margin-bottom: 12px; font-size: 1.1rem; }
.biz-card p { font-size: .88rem; color: var(--text-muted); }
.biz-card .card-link {
  display: inline-flex; align-items: center; gap: 4px;
  margin-top: 18px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--gold);
}
.biz-card .card-link:hover { gap: 8px; }

/* ============================================================
   QR CODE SECTION
   ============================================================ */
.qr-section {
  background: linear-gradient(135deg, var(--navy-dark), #0d2035);
  padding: 72px 0;
}
.qr-row {
  display: flex; justify-content: center; gap: 60px; flex-wrap: wrap;
  align-items: center;
}
.qr-item {
  text-align: center;
}
.qr-item img {
  width: 160px; height: 160px;
  border-radius: var(--radius);
  border: 3px solid rgba(196,163,90,.4);
  margin: 0 auto 12px;
  background: var(--white);
}
.qr-item .qr-label {
  font-size: .9rem;
  font-weight: 700;
  color: var(--gold);
}
.qr-item .qr-sub {
  font-size: .78rem;
  color: rgba(255,255,255,.5);
  margin-top: 4px;
}
.qr-divider {
  width: 1px; height: 120px;
  background: rgba(196,163,90,.2);
}

/* ============================================================
   REITS DATA SECTION
   ============================================================ */
.reits-showcase {
  background: var(--warm);
  padding: 80px 0;
}
.reits-cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}
.reits-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--warm-dark);
  transition: var(--transition);
}
.reits-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.reits-card-header {
  background: linear-gradient(135deg, var(--navy), var(--navy-mid));
  padding: 20px 24px;
  display: flex; align-items: center; gap: 12px;
}
.reits-card-header .rc-icon {
  width: 40px; height: 40px;
  background: rgba(196,163,90,.2);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.reits-card-header h3 {
  color: var(--white);
  font-size: .98rem;
}
.reits-card-header p {
  color: rgba(255,255,255,.55);
  font-size: .75rem;
  margin-top: 2px;
}
.reits-card-body {
  padding: 20px 24px;
}
.reits-stats {
  display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 16px;
}
.reits-stat {
  flex: 1; min-width: 80px;
  text-align: center;
  background: var(--warm);
  border-radius: 8px; padding: 10px 8px;
}
.reits-stat .rv { font-size: 1.3rem; font-weight: 800; color: var(--navy); }
.reits-stat .rl { font-size: .7rem; color: var(--text-muted); margin-top: 2px; }
.reits-card-body p {
  font-size: .85rem; color: var(--text-muted);
  margin-bottom: 16px; line-height: 1.7;
}
.reits-link {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--navy);
  color: var(--gold) !important;
  padding: 9px 18px;
  border-radius: var(--radius);
  font-size: .82rem; font-weight: 700;
  transition: var(--transition);
}
.reits-link:hover {
  background: var(--navy-dark);
  transform: translateX(4px);
}

/* ============================================================
   AIGC PAGE — VIDEO CARD
   ============================================================ */
.video-placeholder {
  background: linear-gradient(135deg, #1a2a3a, #0d1a24);
  border-radius: var(--radius-lg);
  aspect-ratio: 16/9;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  border: 1px solid rgba(196,163,90,.2);
}
.video-placeholder .play-btn {
  width: 64px; height: 64px;
  background: rgba(196,163,90,.9);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  color: var(--navy-dark);
  cursor: pointer;
  transition: var(--transition);
}
.video-placeholder .play-btn:hover {
  transform: scale(1.1);
  background: var(--gold);
}
.video-placeholder .vid-label {
  position: absolute; bottom: 16px; left: 16px;
  background: rgba(0,0,0,.6);
  color: var(--white);
  font-size: .78rem;
  padding: 4px 10px;
  border-radius: 4px;
}
.bilibili-embed {
  background: #0d1a24;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(196,163,90,.2);
  overflow: hidden;
  aspect-ratio: 16/9;
  position: relative;
}
.bilibili-embed iframe {
  width: 100%; height: 100%;
  border: none;
}

/* ============================================================
   CONTACT / FOOTER
   ============================================================ */
.contact-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.contact-item {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(196,163,90,.15);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex; align-items: flex-start; gap: 14px;
}
.contact-item .ci-icon {
  width: 40px; height: 40px;
  background: rgba(196,163,90,.15);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-item .ci-label { font-size: .78rem; color: rgba(255,255,255,.45); }
.contact-item .ci-val { font-size: .9rem; font-weight: 600; color: var(--white); margin-top: 2px; }

.footer {
  background: #080f18;
  padding: 48px 0 24px;
}
.footer-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
}
.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 40px;
}
.footer-brand .fb-name {
  font-size: 1.1rem; font-weight: 700; color: var(--white);
  margin-bottom: 8px;
}
.footer-brand .fb-desc {
  font-size: .82rem; color: rgba(255,255,255,.4);
  line-height: 1.7; max-width: 280px;
}
.footer-brand .fb-icp {
  margin-top: 16px;
  font-size: .75rem; color: rgba(255,255,255,.25);
}
.footer-brand .fb-icp a { color: rgba(255,255,255,.35); }
.footer-col h4 {
  font-size: .85rem; font-weight: 700;
  color: var(--gold);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  font-size: .83rem;
  color: rgba(255,255,255,.45);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding-top: 20px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom p {
  font-size: .78rem;
  color: rgba(255,255,255,.25);
}
.footer-social {
  display: flex; gap: 10px;
}
.footer-social a {
  width: 32px; height: 32px;
  background: rgba(255,255,255,.06);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: .85rem;
  color: rgba(255,255,255,.4);
  transition: var(--transition);
}
.footer-social a:hover {
  background: rgba(196,163,90,.15);
  color: var(--gold);
}

/* ============================================================
   PAGE-SPECIFIC — ASSET PAGE
   ============================================================ */
.page-hero {
  padding: 140px 0 80px;
  background: linear-gradient(160deg, var(--navy-dark) 0%, var(--navy) 100%);
  position: relative; overflow: hidden;
  text-align: center;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none'%3E%3Cg fill='%23C4A35A' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: var(--white); margin-bottom: 16px; }
.page-hero p { color: rgba(255,255,255,.7); max-width: 620px; margin: 0 auto 28px; }
.page-hero .breadcrumb {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: .82rem; color: rgba(255,255,255,.45);
  margin-bottom: 20px;
}
.page-hero .breadcrumb a { color: var(--gold); }

/* ============================================================
   SERVICE DETAIL CARD
   ============================================================ */
.service-block {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  align-items: center; margin-bottom: 80px;
}
.service-block:nth-child(even) { direction: rtl; }
.service-block:nth-child(even) > * { direction: ltr; }
.service-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #e8e0d5, #d5c9ba);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.service-img img { width: 100%; height: 100%; object-fit: cover; }
.service-img-placeholder {
  position: relative; width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 12px;
}
.service-img-placeholder .si-icon {
  font-size: 3rem; opacity: .3; color: var(--navy);
}
.service-img-placeholder p {
  font-size: .82rem; color: var(--text-muted); opacity: .6;
}
.service-text .tag { margin-bottom: 12px; }
.service-text h2 { margin-bottom: 16px; }
.service-text p { margin-bottom: 20px; }
.service-features {
  list-style: none;
  display: flex; flex-direction: column; gap: 10px;
  margin-bottom: 28px;
}
.service-features li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: .9rem; color: #3a4f65;
}
.service-features li::before {
  content: "▸";
  color: var(--gold);
  font-size: .85rem;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ============================================================
   AIGC PAGE
   ============================================================ */
.aigc-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
  align-items: center;
}
.aigc-grid.reverse { direction: rtl; }
.aigc-grid.reverse > * { direction: ltr; }
.software-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--warm-dark);
  transition: var(--transition);
}
.software-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.software-item .si-head {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 16px;
}
.software-item .si-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--navy), var(--navy-mid));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; color: var(--gold);
}
.software-item h3 { margin-bottom: 4px; }
.software-item .si-version {
  font-size: .72rem; color: var(--text-muted);
  background: var(--warm); padding: 2px 8px; border-radius: 4px;
}
.download-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--navy), var(--navy-mid));
  color: var(--gold) !important;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: .85rem; font-weight: 700;
  transition: var(--transition);
  margin-top: 14px;
}
.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(27,58,92,.3);
}

/* ============================================================
   SKILL CARDS
   ============================================================ */
.skill-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--warm-dark);
  transition: var(--transition);
}
.skill-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.skill-card-header {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  padding: 20px 22px;
  display: flex; align-items: center; gap: 12px;
}
.skill-card-header .sk-icon {
  font-size: 1.5rem;
}
.skill-card-header h3 { color: var(--white); font-size: 1rem; }
.skill-card-header p { color: rgba(255,255,255,.5); font-size: .75rem; }
.skill-card-body { padding: 20px 22px; }
.skill-card-body p { font-size: .86rem; color: var(--text-muted); margin-bottom: 14px; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.skill-tag {
  font-size: .72rem;
  background: var(--warm);
  color: var(--navy);
  border: 1px solid var(--warm-dark);
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 500;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero-content { grid-template-columns: 1fr; }
  .hero-right { display: none; }
  .service-block { grid-template-columns: 1fr; }
  .service-block:nth-child(even) { direction: ltr; }
  .aigc-grid { grid-template-columns: 1fr; }
  .aigc-grid.reverse { direction: ltr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .section { padding: 56px 0; }
  .hero-stats { gap: 20px; }
  .qr-divider { display: none; }
  .footer-top { grid-template-columns: 1fr; }
}

/* ---- Scroll animations ---- */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: none;
}

/* ---- Payment notice ---- */
.payment-notice {
  background: rgba(196,163,90,.08);
  border: 1px dashed rgba(196,163,90,.4);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: .83rem;
  color: var(--text-muted);
  margin-top: 16px;
  display: flex; align-items: flex-start; gap: 10px;
}
.payment-notice .pn-icon { font-size: 1rem; margin-top: 2px; flex-shrink: 0; color: var(--gold); }