:root {
  --ink: #101827;
  --muted: #5b6578;
  --line: rgba(50, 78, 145, 0.14);
  --blue: #2f6bff;
  --deep-blue: #172c72;
  --purple: #7557ff;
  --cyan: #22bfd1;
  --panel: rgba(255, 255, 255, 0.9);
  --shadow: 0 24px 60px rgba(28, 55, 124, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  background:
    radial-gradient(circle at 12% 15%, rgba(47, 107, 255, 0.14), transparent 28rem),
    radial-gradient(circle at 86% 34%, rgba(117, 87, 255, 0.14), transparent 30rem),
    linear-gradient(180deg, #edf5ff 0%, #f8fbff 46%, #f7f4ff 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

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

h1,
h2,
h3,
p {
  margin-top: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 18px clamp(24px, 4vw, 72px);
  border-bottom: 1px solid rgba(50, 74, 128, 0.1);
  background: rgba(247, 251, 255, 0.88);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 220px;
}

.brand-mark {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(135deg, #172c72, #3977ff);
  box-shadow: 0 14px 26px rgba(47, 107, 255, 0.24);
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.2;
}

.brand strong {
  font-size: 24px;
  line-height: 1.1;
}

.brand small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  color: #33415f;
  font-size: 17px;
  font-weight: 800;
}

.header-cta,
.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  border-radius: 999px;
  font-size: 17px;
  font-weight: 900;
  white-space: nowrap;
}

.header-cta,
.primary-btn {
  color: #fff;
  background: linear-gradient(135deg, #1d57ff, #6749ff);
  box-shadow: 0 16px 28px rgba(47, 107, 255, 0.24);
}

.header-cta {
  min-width: 126px;
  padding: 0 24px;
}

.primary-btn,
.secondary-btn {
  min-width: 160px;
  padding: 0 24px;
}

.secondary-btn {
  color: #1f3e91;
  border: 1px solid rgba(255, 255, 255, 0.58);
  background: rgba(255, 255, 255, 0.9);
}

.hero {
  position: relative;
  min-height: 92vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 116px clamp(22px, 6vw, 96px) 84px;
  color: #fff;
  background: #071435;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -3;
  background:
    linear-gradient(90deg, rgba(6, 15, 42, 0.98) 0%, rgba(8, 20, 55, 0.9) 45%, rgba(11, 30, 84, 0.62) 100%),
    radial-gradient(circle at 78% 28%, rgba(82, 118, 255, 0.46), transparent 30rem),
    radial-gradient(circle at 22% 84%, rgba(33, 191, 208, 0.22), transparent 24rem);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(90deg, #000, transparent 76%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.hero-poster {
  position: absolute;
  width: min(31vw, 390px);
  min-width: 250px;
  max-height: 76vh;
  object-fit: cover;
  object-position: top;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 24px;
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.35);
  opacity: 0.9;
}

.hero-poster-ai {
  top: 120px;
  right: clamp(210px, 20vw, 380px);
  transform: rotate(-5deg);
}

.hero-poster-geo {
  top: 170px;
  right: clamp(22px, 6vw, 104px);
  transform: rotate(5deg);
}

.hero-content {
  max-width: 620px;
}

.eyebrow {
  margin: 0 0 14px;
  color: #276dff;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #9ad4ff;
}

h1 {
  max-width: 620px;
  margin-bottom: 22px;
  font-size: clamp(40px, 4.6vw, 56px);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero-highlight {
  display: inline-block;
  color: #79b7ff;
  text-shadow: 0 0 34px rgba(47, 107, 255, 0.5);
}

.hero-kicker {
  width: auto;
  max-width: 600px;
  margin-bottom: 22px;
  padding: 12px 18px;
  border: 1px solid rgba(143, 199, 255, 0.34);
  border-radius: 999px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
  font-size: clamp(18px, 2.5vw, 28px);
  font-weight: 900;
  line-height: 1.35;
}

.hero-text {
  max-width: 600px;
  margin-bottom: 34px;
  color: rgba(235, 244, 255, 0.86);
  font-size: clamp(18px, 2.2vw, 23px);
  line-height: 1.75;
  font-weight: 700;
}

.hero-actions,
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-actions {
  margin-bottom: 30px;
}

.hero-tags span {
  padding: 10px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.09);
  font-size: 14px;
  font-weight: 900;
}

.section-wrap {
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
  padding: 78px 0;
}

.section-heading {
  max-width: 860px;
  margin-bottom: 34px;
}

.section-heading h2,
.guide-card h2,
.contact-panel h2 {
  margin-bottom: 14px;
  color: #14244f;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.16;
  letter-spacing: 0;
}

.section-heading p:not(.eyebrow),
.guide-card p,
.system-copy p,
.price-card p,
.faq-grid p,
.contact-panel p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.guide-card,
.system-panel,
.about-grid article,
.method-grid article,
.honor-summary,
.honor-card,
.price-card,
.agent-card,
.faq-grid article,
.video-card {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.guide-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 30px;
  align-items: center;
  padding: clamp(28px, 5vw, 48px);
  border-radius: 28px;
}

.guide-steps {
  display: grid;
  gap: 12px;
}

.guide-steps span {
  padding: 16px 18px;
  border-radius: 15px;
  color: #1d3b91;
  background: #edf4ff;
  font-weight: 900;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.about-grid article {
  min-height: 170px;
  padding: 24px;
  border-radius: 18px;
}

.method-grid article {
  position: relative;
  overflow: hidden;
  min-height: 250px;
  padding: 32px;
  border-radius: 24px;
}

.method-grid article::after {
  content: "";
  position: absolute;
  right: -64px;
  top: -64px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(47, 107, 255, 0.08);
}

.method-grid span {
  display: grid;
  width: 50px;
  height: 50px;
  margin-bottom: 22px;
  place-items: center;
  border-radius: 16px;
  color: #fff;
  background: linear-gradient(135deg, #1d57ff, #6749ff);
  font-size: 17px;
  font-weight: 900;
}

.method-grid strong {
  display: block;
  margin-bottom: 14px;
  color: #132456;
  font-size: 26px;
}

.method-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.about-grid strong,
.price-card span {
  display: block;
  margin-bottom: 12px;
  color: #1f50c9;
  font-size: 17px;
  font-weight: 900;
}

.honor-proof {
  display: grid;
  grid-template-columns: minmax(300px, 0.38fr) minmax(0, 0.62fr);
  gap: 22px;
  align-items: stretch;
}

.honor-summary {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  padding: 34px;
  border-radius: 26px;
  color: #fff;
  background:
    radial-gradient(circle at 80% 16%, rgba(255, 255, 255, 0.18), transparent 14rem),
    linear-gradient(135deg, #101f54, #355dff);
}

.honor-summary::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -90px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
}

.honor-summary span {
  display: inline-flex;
  margin-bottom: 20px;
  padding: 9px 14px;
  border-radius: 999px;
  color: #17317a;
  background: #ffffff;
  font-size: 14px;
  font-weight: 900;
}

.honor-summary h3 {
  position: relative;
  z-index: 1;
  margin-bottom: 18px;
  color: #fff;
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: 1.18;
}

.honor-summary p {
  position: relative;
  z-index: 1;
  margin-bottom: 26px;
  color: rgba(240, 248, 255, 0.86);
  font-size: 17px;
  line-height: 1.85;
  font-weight: 700;
}

.honor-tags {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.honor-tags span {
  margin: 0;
  padding: 10px 14px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.12);
  font-size: 14px;
}

.honor-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.honor-card {
  overflow: hidden;
  min-height: 320px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
}

.honor-card img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.3s ease;
}

.honor-card strong {
  display: block;
  margin: 18px 18px 8px;
  color: #132456;
  font-size: 18px;
  line-height: 1.35;
}

.honor-card span {
  display: block;
  margin: 0 18px 20px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.5;
}

.honor-card:hover img {
  transform: scale(1.04);
}

.system-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 34px;
  align-items: stretch;
  margin-top: 24px;
  padding: 34px;
  border-radius: 26px;
}

.system-panel.reverse {
  grid-template-columns: 380px minmax(0, 1fr);
}

.system-panel.reverse .system-copy {
  grid-column: 2;
}

.system-panel.reverse .poster-card {
  grid-column: 1;
  grid-row: 1;
}

.system-label {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 9px 15px;
  border-radius: 999px;
  color: #fff;
  font-size: 14px;
  font-weight: 900;
}

.system-label.blue {
  background: var(--blue);
}

.system-label.purple {
  background: var(--purple);
}

.system-copy h3 {
  margin-bottom: 14px;
  color: #132456;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.15;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.feature-list span {
  display: grid;
  gap: 5px;
  min-height: 74px;
  padding: 13px 16px;
  border: 1px solid rgba(45, 93, 210, 0.16);
  border-radius: 14px;
  color: #293a63;
  background: #f4f8ff;
  font-size: 15px;
  line-height: 1.45;
}

.feature-list b {
  color: #123582;
  font-size: 15px;
}

.poster-card {
  position: relative;
  overflow: hidden;
  width: 100%;
  height: 560px;
  padding: 0;
  border: 1px solid rgba(47, 107, 255, 0.2);
  border-radius: 24px;
  background: #ecf4ff;
  cursor: pointer;
}

.poster-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform 0.35s ease;
}

.poster-card span {
  position: absolute;
  right: 18px;
  bottom: 18px;
  left: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 999px;
  color: #fff;
  background: rgba(19, 39, 93, 0.9);
  font-size: 14px;
  font-weight: 900;
}

.poster-card::after {
  content: "高清长图，点击后可放大查看";
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 8px 12px;
  border-radius: 999px;
  color: #17317a;
  background: rgba(255, 255, 255, 0.92);
  font-size: 12px;
  font-weight: 900;
}

.poster-card:hover img {
  transform: scale(1.04);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.single-video-grid {
  grid-template-columns: 1fr;
}

.single-video-grid .featured-video {
  max-width: 100%;
}

.video-card {
  overflow: hidden;
  border-radius: 22px;
}

.featured-video {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: 0;
  align-items: stretch;
  background: #071435;
}

.featured-video video {
  width: 100%;
  height: 100%;
  min-height: 420px;
  display: block;
  background: #020817;
  object-fit: contain;
}

.featured-video .video-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(28px, 4vw, 44px);
  color: #fff;
  background:
    radial-gradient(circle at 82% 18%, rgba(47, 107, 255, 0.34), transparent 14rem),
    linear-gradient(135deg, #0b183d, #1d3f9f);
}

.featured-video .video-copy span {
  width: fit-content;
  margin-bottom: 18px;
  padding: 9px 14px;
  border-radius: 999px;
  color: #17317a;
  background: #ffffff;
  font-size: 14px;
  font-weight: 900;
}

.featured-video .video-copy h3 {
  margin: 0 0 18px;
  color: #fff;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.18;
}

.featured-video .video-copy p {
  margin: 0;
  color: rgba(238, 246, 255, 0.86);
  font-size: 17px;
  line-height: 1.85;
}

.video-placeholder {
  display: grid;
  min-height: 210px;
  place-items: center;
  padding: 24px;
  color: #fff;
  text-align: center;
  background:
    radial-gradient(circle at 68% 24%, rgba(255, 255, 255, 0.26), transparent 9rem),
    linear-gradient(135deg, #1d57ff, #22bfd1);
}

.video-placeholder.purple {
  background:
    radial-gradient(circle at 68% 24%, rgba(255, 255, 255, 0.24), transparent 9rem),
    linear-gradient(135deg, #3f31b7, #8a62ff);
}

.video-placeholder span {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.2);
  font-size: 18px;
  font-weight: 900;
}

.video-placeholder strong {
  font-size: 27px;
}

.video-placeholder small {
  font-size: 14px;
  font-weight: 800;
}

.video-card h3,
.video-card p {
  padding: 0 22px;
}

.video-card h3 {
  margin: 22px 0 10px;
  color: #132456;
  font-size: 21px;
}

.video-card p {
  margin-bottom: 24px;
  color: var(--muted);
  line-height: 1.7;
}

.price-grid,
.faq-grid {
  display: grid;
  gap: 18px;
}

.price-grid {
  grid-template-columns: 1fr;
}

.faq-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.price-card {
  display: grid;
  grid-template-columns: minmax(260px, 0.34fr) minmax(0, 0.66fr);
  gap: 32px;
  align-items: center;
  min-height: 250px;
  padding: clamp(30px, 4vw, 46px);
  border-radius: 26px;
}

.price-head {
  display: grid;
  gap: 18px;
  align-content: center;
}

.price-body {
  display: grid;
  gap: 18px;
  align-content: center;
}

.price-body p {
  margin: 0;
}

.price-card h3 {
  margin-bottom: 0;
  color: #132456;
  font-size: clamp(42px, 6vw, 68px);
  line-height: 1;
}

.price-note {
  margin-top: 0;
  padding: 18px 20px;
  border-radius: 18px;
  background: #f2f6ff;
  color: #33415f;
  font-size: 16px;
  line-height: 1.75;
  font-weight: 700;
}

.price-body > p:not(.price-note) {
  color: var(--muted);
  font-size: 19px;
  line-height: 1.85;
}

.price-card.featured {
  color: #fff;
  background: linear-gradient(135deg, #17317a, #385dff);
}

.price-card.featured span,
.price-card.featured h3,
.price-card.featured p {
  color: #fff;
}

.price-card.featured .price-note {
  color: rgba(255, 255, 255, 0.92);
  background: rgba(255, 255, 255, 0.13);
}

.agent-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.agent-card {
  overflow: hidden;
  border-radius: 28px;
}

.agent-card-head {
  padding: 34px;
  color: #fff;
  background:
    radial-gradient(circle at 82% 20%, rgba(255, 255, 255, 0.24), transparent 12rem),
    linear-gradient(135deg, #153281, #2f6bff);
}

.purple-agent .agent-card-head {
  background:
    radial-gradient(circle at 82% 20%, rgba(255, 255, 255, 0.22), transparent 12rem),
    linear-gradient(135deg, #33238d, #7557ff);
}

.agent-card-head span {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 9px 14px;
  border-radius: 999px;
  color: #17317a;
  background: #fff;
  font-size: 14px;
  font-weight: 900;
}

.agent-card-head h3 {
  margin: 0;
  color: #fff;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.15;
}

.agent-options {
  display: grid;
  gap: 16px;
  padding: 26px;
}

.agent-options div {
  padding: 24px;
  border: 1px solid rgba(45, 93, 210, 0.16);
  border-radius: 20px;
  background: #f4f8ff;
}

.agent-options strong,
.agent-options b {
  display: block;
}

.agent-options strong {
  margin-bottom: 10px;
  color: #1f50c9;
  font-size: 18px;
}

.agent-options b {
  margin-bottom: 14px;
  color: #132456;
  font-size: clamp(32px, 4vw, 46px);
  line-height: 1;
}

.agent-options p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 700;
}

.faq-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.faq-grid article {
  padding: 26px;
  border-radius: 18px;
}

.faq-grid strong {
  display: block;
  margin-bottom: 10px;
  color: #132456;
  font-size: 20px;
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 430px;
  gap: 42px;
  align-items: center;
  padding: clamp(28px, 5vw, 56px);
  border-radius: 30px;
  color: #fff;
  background:
    radial-gradient(circle at 82% 22%, rgba(63, 213, 230, 0.26), transparent 22rem),
    linear-gradient(135deg, #101f54, #274bc7);
  box-shadow: var(--shadow);
}

.contact-panel .eyebrow {
  color: #99d8ff;
}

.contact-panel h2 {
  color: #fff;
}

.contact-panel p {
  color: rgba(240, 248, 255, 0.84);
}

.contact-copy .closing-message {
  max-width: 860px;
  margin: 0 0 24px;
  color: #ffffff;
  font-size: clamp(30px, 3vw, 42px);
  font-weight: 900;
  line-height: 1.42;
  letter-spacing: 0;
  text-wrap: balance;
}

.contact-copy .contact-helper {
  max-width: 820px;
  font-size: 17px;
  line-height: 1.9;
  font-weight: 600;
}

.contact-card {
  display: grid;
  gap: 16px;
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.12);
}

.contact-card strong {
  margin-bottom: 8px;
  color: #fff;
  font-size: 32px;
}

.contact-item {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.11);
}

.contact-item span {
  color: rgba(235, 246, 255, 0.72);
  font-size: 15px;
  font-weight: 900;
}

.contact-item b {
  color: #fff;
  font-size: 20px;
  line-height: 1.45;
}

.phone-item b {
  font-size: 30px;
  letter-spacing: 0;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  padding: 26px clamp(18px, 4vw, 56px);
  color: #68748a;
  border-top: 1px solid rgba(50, 74, 128, 0.1);
  font-size: 14px;
}

.footer a {
  color: #68748a;
  text-decoration: none;
}

.footer a:hover {
  color: #2457ff;
}

.image-dialog {
  width: min(96vw, 1220px);
  height: 92vh;
  overflow: hidden;
  padding: 0;
  border: 0;
  border-radius: 24px;
  background: #eef5ff;
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.36);
}

.image-dialog::backdrop {
  background: rgba(7, 15, 38, 0.72);
  backdrop-filter: blur(6px);
}

.dialog-toolbar {
  position: sticky;
  top: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 64px;
  padding: 12px 16px 12px 22px;
  border-bottom: 1px solid rgba(50, 74, 128, 0.14);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
}

.dialog-title {
  color: #14244f;
  font-size: 17px;
}

.dialog-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dialog-actions button,
.dialog-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border: 0;
  border-radius: 999px;
  color: #17317a;
  background: #eaf2ff;
  font-family: inherit;
  font-size: 14px;
  font-weight: 900;
  cursor: pointer;
  white-space: nowrap;
}

.dialog-actions a {
  color: #fff;
  background: linear-gradient(135deg, #1d57ff, #6749ff);
}

.dialog-body {
  height: calc(92vh - 64px);
  overflow: auto;
  padding: 22px;
  text-align: center;
  background:
    linear-gradient(45deg, rgba(47, 107, 255, 0.06) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(47, 107, 255, 0.06) 25%, transparent 25%),
    #eef5ff;
  background-size: 26px 26px;
}

.image-dialog img {
  width: 100%;
  max-width: none;
  height: auto;
  display: inline-block;
  border-radius: 16px;
  box-shadow: 0 18px 50px rgba(18, 38, 92, 0.18);
}

.dialog-close {
  display: grid;
  width: 42px;
  height: 42px;
  min-height: 42px;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: rgba(9, 18, 47, 0.82);
  font-size: 26px;
  cursor: pointer;
}

@media (max-width: 980px) {
  .nav-links {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 110px;
  }

  .hero-poster {
    width: 260px;
    max-height: 48vh;
    opacity: 0.24;
  }

  .hero-poster-ai {
    top: 88px;
    right: 120px;
  }

  .hero-poster-geo {
    top: 128px;
    right: -20px;
  }

  .hero-highlight {
    white-space: normal;
  }

  .guide-card,
  .system-panel,
  .system-panel.reverse,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .system-panel.reverse .system-copy,
  .system-panel.reverse .poster-card {
    grid-column: auto;
    grid-row: auto;
  }

  .about-grid,
  .honor-proof,
  .method-grid,
  .agent-grid,
  .price-grid,
  .video-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .price-card {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .featured-video {
    grid-template-columns: 1fr;
  }

  .featured-video video {
    min-height: 260px;
  }

  .dialog-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .dialog-actions {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .dialog-body {
    height: calc(92vh - 118px);
    padding: 14px;
  }

  .feature-list {
    grid-template-columns: 1fr;
  }

  .honor-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .site-header {
    padding: 12px 14px;
  }

  .brand {
    min-width: 0;
  }

  .brand small {
    display: none;
  }

  .header-cta {
    min-width: 90px;
    min-height: 38px;
    padding: 0 13px;
    font-size: 13px;
  }

  .hero {
    padding: 92px 18px 58px;
  }

  .hero-poster {
    opacity: 0.1;
    filter: blur(1px);
  }

  .hero-actions {
    display: grid;
  }

  .primary-btn,
  .secondary-btn {
    width: 100%;
  }

  .section-wrap {
    width: min(100% - 24px, 1160px);
    padding: 58px 0;
  }

  .guide-card,
  .system-panel {
    padding: 20px;
    border-radius: 22px;
  }

  .poster-card {
    height: 460px;
  }

  .honor-summary {
    min-height: auto;
    padding: 24px;
  }

  .honor-gallery {
    grid-template-columns: 1fr;
  }

  .honor-card {
    min-height: auto;
  }

  .honor-card img {
    height: 260px;
  }

  .video-placeholder {
    min-height: 180px;
  }

  .footer {
    flex-direction: column;
  }
}