:root {
  --bg: #f5f7f8;
  --surface: #ffffff;
  --surface-strong: #eef3f4;
  --ink: #172022;
  --muted: #657274;
  --line: #d8e0e2;
  --navy: #10262b;
  --navy-2: #17353b;
  --teal: #0b7d79;
  --teal-soft: #dcefed;
  --gold: #b48a42;
  --blue: #3b6f8f;
  --coral: #b96555;
  --shadow: 0 18px 50px rgba(16, 38, 43, 0.1);
  --shadow-soft: 0 10px 26px rgba(16, 38, 43, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(16, 38, 43, 0.05), transparent 340px),
    var(--bg);
  color: var(--ink);
  font-family:
    "Segoe UI",
    "Microsoft YaHei",
    "PingFang SC",
    sans-serif;
}

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

button,
input,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 64px);
  border-bottom: 1px solid rgba(216, 224, 226, 0.85);
  background: rgba(245, 247, 248, 0.9);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--navy);
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--navy), var(--teal));
  color: #fff;
  font-size: 13px;
  letter-spacing: 0;
  box-shadow: 0 10px 22px rgba(11, 125, 121, 0.22);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.nav-links a:hover {
  color: var(--teal);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(430px, 1.18fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  min-height: calc(100vh - 69px);
  padding: clamp(42px, 7vw, 86px) clamp(18px, 5vw, 72px) 46px;
  background:
    radial-gradient(circle at 84% 18%, rgba(11, 125, 121, 0.17), transparent 30%),
    linear-gradient(135deg, #fbfcfc 0%, #edf4f4 100%);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 13px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  color: var(--navy);
  font-size: clamp(38px, 5vw, 68px);
  font-weight: 780;
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 12px;
  color: var(--navy);
  font-size: clamp(29px, 3.6vw, 46px);
  font-weight: 760;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-text,
.section-heading p,
.advisor-copy p,
.agent-card p,
.lead-card p {
  color: var(--muted);
  line-height: 1.75;
}

.hero-text {
  max-width: 660px;
  font-size: clamp(17px, 2vw, 20px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin-top: 30px;
}

.primary-button,
.ghost-button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 18px;
  cursor: pointer;
  font-weight: 760;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

.primary-button {
  background: linear-gradient(135deg, var(--teal), #075e61);
  color: #fff;
  box-shadow: 0 12px 24px rgba(11, 125, 121, 0.22);
}

.ghost-button {
  border-color: rgba(16, 38, 43, 0.18);
  background: rgba(255, 255, 255, 0.72);
  color: var(--navy);
}

.primary-button:hover,
.ghost-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(16, 38, 43, 0.14);
}

.hero-shelf {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.hero-shelf::before {
  position: absolute;
  inset: -18px;
  z-index: 0;
  border: 1px solid rgba(16, 38, 43, 0.1);
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.24)),
    repeating-linear-gradient(90deg, rgba(16, 38, 43, 0.045) 0 1px, transparent 1px 42px);
  content: "";
}

.hero-agent {
  position: relative;
  z-index: 1;
  min-height: 238px;
  overflow: hidden;
  border: 1px solid rgba(216, 224, 226, 0.92);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow-soft);
  padding: 22px;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.hero-agent::before {
  position: absolute;
  inset: 0;
  border-top: 4px solid var(--teal);
  content: "";
}

.hero-agent::after {
  position: absolute;
  right: 20px;
  bottom: 18px;
  width: 94px;
  height: 94px;
  border: 1px solid rgba(16, 38, 43, 0.06);
  border-radius: 50%;
  background: rgba(16, 38, 43, 0.025);
  content: "";
}

.hero-agent:hover {
  transform: translateY(-4px);
  border-color: rgba(11, 125, 121, 0.36);
  box-shadow: var(--shadow);
}

.hero-agent p {
  margin: 18px 0 8px;
  color: var(--navy);
  font-size: 18px;
  font-weight: 800;
}

.hero-agent strong {
  display: block;
  max-width: 230px;
  color: var(--muted);
  line-height: 1.5;
  font-weight: 650;
}

.hero-agent-sales::before {
  border-top-color: var(--teal);
}

.hero-agent-support::before {
  border-top-color: var(--blue);
}

.hero-agent-open::before {
  border-top-color: var(--gold);
}

.hero-agent-workflow::before {
  border-top-color: var(--coral);
}

.agent-avatar {
  position: relative;
  display: grid;
  width: 82px;
  height: 82px;
  place-items: center;
  border: 1px solid rgba(16, 38, 43, 0.15);
  border-radius: 22px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(238, 243, 244, 0.7)),
    var(--surface);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.72);
}

.agent-avatar::before,
.agent-avatar::after,
.agent-avatar span::before,
.agent-avatar span::after {
  position: absolute;
  content: "";
}

.robot-face span {
  width: 46px;
  height: 28px;
  border: 2px solid var(--teal);
  border-radius: 12px;
  background:
    radial-gradient(circle at 15px 14px, var(--teal) 0 3px, transparent 4px),
    radial-gradient(circle at 31px 14px, var(--teal) 0 3px, transparent 4px),
    var(--teal-soft);
}

.robot-face::before {
  top: 15px;
  width: 2px;
  height: 12px;
  background: var(--teal);
}

.robot-face::after {
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}

.fox-bot::before,
.fox-bot::after {
  top: 17px;
  width: 22px;
  height: 24px;
  border: 2px solid var(--blue);
  border-radius: 5px;
  background: rgba(59, 111, 143, 0.12);
  transform: rotate(45deg);
}

.fox-bot::before {
  left: 18px;
}

.fox-bot::after {
  right: 18px;
}

.fox-bot span {
  width: 48px;
  height: 36px;
  border: 2px solid var(--blue);
  border-radius: 16px;
  background:
    radial-gradient(circle at 16px 15px, var(--blue) 0 3px, transparent 4px),
    radial-gradient(circle at 32px 15px, var(--blue) 0 3px, transparent 4px),
    #eef6f8;
}

.claw-bot::before,
.claw-bot::after {
  top: 24px;
  width: 14px;
  height: 27px;
  border: 2px solid var(--gold);
  border-bottom: 0;
  border-radius: 14px 14px 0 0;
  background: rgba(180, 138, 66, 0.12);
}

.claw-bot::before {
  left: 13px;
  transform: rotate(-20deg);
}

.claw-bot::after {
  right: 13px;
  transform: rotate(20deg);
}

.claw-bot span {
  width: 44px;
  height: 38px;
  border: 2px solid var(--gold);
  border-radius: 13px;
  background:
    radial-gradient(circle at 15px 15px, var(--gold) 0 3px, transparent 4px),
    radial-gradient(circle at 29px 15px, var(--gold) 0 3px, transparent 4px),
    #fff7e7;
}

.owl-bot {
  border-radius: 24px;
}

.owl-bot::before,
.owl-bot::after {
  top: 22px;
  width: 22px;
  height: 22px;
  border: 2px solid var(--coral);
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--coral) 0 3px, transparent 4px),
    #fff1ee;
}

.owl-bot::before {
  left: 17px;
}

.owl-bot::after {
  right: 17px;
}

.owl-bot span {
  width: 0;
  height: 0;
  border-right: 8px solid transparent;
  border-left: 8px solid transparent;
  border-top: 11px solid var(--coral);
  transform: translateY(16px);
}

.section,
.advisor-section {
  padding: clamp(54px, 7vw, 92px) clamp(18px, 5vw, 72px);
}

.section-heading {
  max-width: 740px;
  margin-bottom: 28px;
}

.agent-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.agent-card,
.advisor-box,
.lead-form,
.lead-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.agent-card {
  display: flex;
  min-height: 316px;
  flex-direction: column;
  padding: 20px;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

.agent-card:hover {
  transform: translateY(-3px);
  border-color: rgba(11, 125, 121, 0.36);
  box-shadow: var(--shadow);
}

.agent-card h3 {
  margin: 16px 0 10px;
  color: var(--navy);
  font-size: 21px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 14px;
}

.tag {
  border: 1px solid rgba(11, 125, 121, 0.18);
  border-radius: 999px;
  background: var(--teal-soft);
  color: #0a5f5d;
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 760;
}

.detail-link {
  margin-top: 18px;
  color: var(--teal);
  font-size: 14px;
  font-weight: 800;
}

.agent-meta {
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.advisor-section {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(320px, 1fr);
  gap: 28px;
  align-items: start;
  background:
    radial-gradient(circle at 86% 12%, rgba(11, 125, 121, 0.24), transparent 28%),
    linear-gradient(135deg, var(--navy), #0a171a);
  color: #fff;
}

.advisor-section h2 {
  color: #fff;
}

.advisor-section .eyebrow {
  color: #83d1cd;
}

.advisor-section p {
  color: rgba(255, 255, 255, 0.72);
}

.advisor-box,
.lead-form {
  display: grid;
  gap: 14px;
  padding: 20px;
  color: var(--ink);
}

label {
  color: var(--navy);
  font-weight: 760;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 13px 14px;
  outline: none;
}

textarea {
  min-height: 136px;
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: rgba(11, 125, 121, 0.55);
  box-shadow: 0 0 0 4px rgba(11, 125, 121, 0.12);
}

.recommendation {
  display: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 16px;
  line-height: 1.65;
}

.recommendation.visible {
  display: block;
}

.recommendation h3 {
  margin-bottom: 8px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.76fr) minmax(320px, 1fr);
  gap: 28px;
  align-items: start;
}

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

.form-row.full,
.lead-form button {
  grid-column: 1 / -1;
}

.inline-heading {
  display: flex;
  max-width: none;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.icon-button {
  display: grid;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgba(185, 101, 85, 0.24);
  border-radius: 10px;
  background: #fff0ed;
  color: var(--coral);
  cursor: pointer;
  font-size: 24px;
  font-weight: 800;
}

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

.lead-card {
  padding: 18px;
}

.lead-card h3 {
  margin-bottom: 8px;
}

.email-link {
  display: inline-flex;
  margin-top: 10px;
  border: 1px solid rgba(11, 125, 121, 0.2);
  border-radius: 999px;
  background: var(--teal-soft);
  color: #0a5f5d;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 800;
}

.intent {
  display: inline-flex;
  margin-bottom: 12px;
  border: 1px solid rgba(180, 138, 66, 0.28);
  border-radius: 999px;
  background: #fff6e8;
  color: #77551d;
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 760;
}

.empty-state {
  grid-column: 1 / -1;
  border: 1px dashed rgba(101, 114, 116, 0.42);
  border-radius: 16px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.68);
  color: var(--muted);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 24px clamp(18px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(340px, 0.65fr);
  gap: clamp(26px, 5vw, 64px);
  align-items: center;
  padding: clamp(48px, 7vw, 92px) clamp(18px, 5vw, 72px);
  background:
    radial-gradient(circle at 84% 18%, rgba(11, 125, 121, 0.16), transparent 30%),
    linear-gradient(135deg, #fbfcfc 0%, #edf4f4 100%);
  border-bottom: 1px solid var(--line);
}

.detail-copy h1 {
  margin-bottom: 18px;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin-top: 28px;
}

.detail-product-card {
  border: 1px solid rgba(216, 224, 226, 0.92);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
  padding: 24px;
}

.detail-product-card h2 {
  margin: 20px 0 12px;
  font-size: clamp(26px, 3vw, 36px);
}

.detail-product-card dl {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
}

.detail-product-card dl div {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.detail-product-card dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 760;
}

.detail-product-card dd {
  margin: 5px 0 0;
  color: var(--navy);
  font-weight: 760;
}

.detail-section {
  padding: clamp(48px, 7vw, 84px) clamp(18px, 5vw, 72px);
}

.detail-band {
  background: #eef3f4;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.detail-grid li {
  position: relative;
  min-height: 94px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  padding: 20px 20px 20px 48px;
  color: var(--navy);
  line-height: 1.7;
}

.detail-grid li::before {
  position: absolute;
  top: 24px;
  left: 20px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--teal);
  content: "";
  box-shadow: 0 0 0 6px rgba(11, 125, 121, 0.12);
}

.performance-section {
  background:
    radial-gradient(circle at 88% 8%, rgba(131, 209, 205, 0.2), transparent 28%),
    linear-gradient(135deg, var(--navy), #0b171a);
  color: #fff;
}

.performance-section h2,
.performance-section .detail-grid li {
  color: #fff;
}

.performance-section .eyebrow {
  color: #83d1cd;
}

.performance-section .section-heading p {
  color: rgba(255, 255, 255, 0.72);
}

.performance-grid,
.trust-grid {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.performance-grid li {
  min-height: 150px;
  border: 1px solid rgba(131, 209, 205, 0.22);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.16);
  padding: 20px;
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.72;
}

.performance-grid li::first-line {
  color: #fff;
  font-weight: 800;
}

.trust-section {
  background: #f9fbfb;
  border-bottom: 1px solid var(--line);
}

.trust-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.trust-grid li {
  border: 1px solid rgba(11, 125, 121, 0.16);
  border-radius: 16px;
  background: #fff;
  box-shadow: var(--shadow-soft);
  padding: 18px;
  color: var(--navy);
  line-height: 1.7;
}

.checkout-hero {
  padding: clamp(42px, 6vw, 76px) clamp(18px, 5vw, 72px);
  background:
    radial-gradient(circle at 82% 14%, rgba(11, 125, 121, 0.18), transparent 28%),
    linear-gradient(135deg, #fbfcfc 0%, #edf4f4 100%);
  border-bottom: 1px solid var(--line);
}

.checkout-hero h1 {
  max-width: 880px;
  font-size: clamp(36px, 5vw, 62px);
}

.checkout-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 420px);
  gap: 24px;
  align-items: start;
  padding: clamp(34px, 5vw, 64px) clamp(18px, 5vw, 72px);
}

.checkout-form {
  display: grid;
  gap: 18px;
}

.checkout-block,
.checkout-summary {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  padding: 22px;
}

.compact-heading {
  margin-bottom: 16px;
}

.compact-heading h2 {
  font-size: clamp(24px, 3vw, 34px);
}

.product-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.product-option,
.choice-pill {
  cursor: pointer;
}

.product-option input,
.choice-pill input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.product-option span {
  display: grid;
  min-height: 190px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fbfcfc;
  padding: 18px;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.product-option input:checked + span {
  border-color: rgba(11, 125, 121, 0.56);
  box-shadow: 0 0 0 4px rgba(11, 125, 121, 0.1);
}

.product-option span:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.product-option strong {
  color: var(--navy);
  font-size: 18px;
}

.product-option em {
  margin: 8px 0;
  color: var(--teal);
  font-size: 28px;
  font-style: normal;
  font-weight: 850;
}

.product-option ul,
.checkout-summary ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.platform-options {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.choice-pill span {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fbfcfc;
  padding: 0 18px;
  color: var(--navy);
  font-weight: 800;
}

.choice-pill input:checked + span {
  border-color: rgba(11, 125, 121, 0.48);
  background: var(--teal-soft);
  color: #0a5f5d;
}

.checkout-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.checkout-fields label {
  display: grid;
  gap: 8px;
}

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

.checkout-summary {
  position: sticky;
  top: 88px;
}

.summary-price {
  margin: 8px 0;
  color: var(--teal);
  font-size: 44px;
  font-weight: 900;
}

.payment-box {
  margin-top: 22px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.payment-box p {
  color: var(--muted);
  line-height: 1.7;
}

.full-button {
  width: 100%;
}

.order-result {
  margin-top: 16px;
  border-radius: 14px;
  background: #f4f9f8;
  color: var(--navy);
  line-height: 1.7;
}

.order-result:not(:empty) {
  border: 1px solid rgba(11, 125, 121, 0.18);
  padding: 14px;
}

@media (max-width: 1080px) {
  .hero,
  .advisor-section,
  .split,
  .detail-hero,
  .checkout-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .agent-grid,
  .lead-list,
  .performance-grid,
  .trust-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-shelf,
  .agent-grid,
  .lead-list,
  .lead-form,
  .detail-grid,
  .performance-grid,
  .trust-grid,
  .product-options,
  .checkout-fields {
    grid-template-columns: 1fr;
  }

  .checkout-summary {
    position: static;
  }

  .hero-agent {
    min-height: 205px;
  }

  .inline-heading {
    align-items: flex-start;
  }
}