:root {
  color-scheme: light;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Avenir Next", sans-serif;
  --ink: #201815;
  --muted: #6d625c;
  --line: rgba(99, 61, 35, 0.16);
  --flame: #ef4f19;
  --flame-dark: #ca2c1c;
  --deep-orange: #c94a00;
  --hermes: #f37021;
  --gold: #f7a52f;
  --paper: #fff3df;
  --panel: rgba(255, 255, 255, 0.76);
  --shadow: 0 28px 84px rgba(81, 48, 28, 0.14);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.65;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 8% 12%, rgba(247, 165, 47, 0.2), transparent 24rem),
    radial-gradient(circle at 78% 18%, rgba(239, 79, 25, 0.16), transparent 26rem),
    linear-gradient(180deg, #fff8eb 0%, var(--paper) 48%, #ffe7cf 100%);
}

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

a:focus-visible {
  outline: 3px solid rgba(239, 79, 25, 0.34);
  outline-offset: 4px;
}

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

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.selected-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: clamp(10px, 2vw, 28px);
  min-height: 94px;
  padding: 5px clamp(20px, 5vw, 70px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
}

.selected-brand {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
}

.selected-brand img {
  width: auto;
  max-width: min(36vw, 300px);
  height: 88px;
  object-fit: contain;
}

.selected-nav {
  display: flex;
  flex: 1 1 520px;
  justify-content: center;
  min-width: 0;
  gap: clamp(4px, 0.55vw, 9px);
  color: #F37021;
  font-size: clamp(14px, 0.82vw, 18px);
  font-weight: 940;
}

.selected-nav a,
.selected-phone {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 clamp(14px, 1.35vw, 20px);
  border: 1px solid rgba(99, 61, 35, 0.14);
  border-radius: 999px;
  background: rgba(255, 249, 238, 0.7);
  box-shadow: 0 12px 32px rgba(81, 48, 28, 0.06);
  white-space: nowrap;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.selected-nav a {
  min-height: 42px;
  padding: 0 clamp(8px, 0.65vw, 14px);
}

.selected-phone {
  border: 0;
  background: transparent;
  box-shadow: none;
  color: #F37021;
  font-size: 30px;
  font-weight: 1000;
  text-decoration: none;
}

.selected-nav a:hover,
.selected-nav a.active,
.selected-phone:hover {
  color: var(--flame);
  border-color: rgba(239, 79, 25, 0.28);
  background: rgba(255, 241, 224, 0.92);
  transform: translateY(-1px);
}

.selected-phone:hover {
  color: #F37021;
  border: 0;
  background: transparent;
  box-shadow: none;
  transform: none;
}

.selected-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 0 32px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(105deg, var(--flame-dark), var(--flame) 58%, var(--gold));
  box-shadow: 0 16px 40px rgba(239, 79, 25, 0.22);
  font-size: 20px;
  font-weight: 950;
  white-space: nowrap;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.selected-button:hover {
  box-shadow: 0 22px 54px rgba(239, 79, 25, 0.28);
  transform: translateY(-2px);
}

.selected-button:active {
  transform: translateY(0);
}

.selected-button.secondary {
  color: var(--flame-dark);
  border-color: rgba(239, 79, 25, 0.24);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: none;
}

.selected-section {
  position: relative;
  padding: clamp(38px, 5vw, 60px) clamp(18px, 5vw, 54px);
}

.selected-section:not(.selected-hero) {
  padding-top: clamp(62px, 7vw, 96px);
  padding-bottom: clamp(62px, 7vw, 96px);
}

.selected-inner {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.selected-hero {
  display: grid;
  min-height: 100svh;
  align-items: center;
  padding-top: 132px;
}

#shift {
  padding-top: clamp(24px, 3.2vw, 40px);
}

.selected-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 530px);
  gap: clamp(34px, 5vw, 74px);
  align-items: center;
}

.selected-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--flame);
  font-size: 20px;
  font-weight: 950;
}

.selected-eyebrow::before {
  width: 34px;
  height: 1px;
  content: "";
  background: currentColor;
}

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

h1 {
  display: grid;
  gap: 8px;
  max-width: 760px;
  margin-bottom: 26px;
  font-size: clamp(44px, 6.4vw, 86px);
  font-weight: 950;
  letter-spacing: 0;
  line-height: 1.03;
}

h1 .headline-main,
h1 .ai-accent,
.metric-card strong {
  color: var(--flame);
}

.headline-prefix {
  color: var(--ink);
  font-size: clamp(30px, 3.7vw, 50px);
  line-height: 1.08;
}

.headline-main {
  display: block;
  font-size: clamp(46px, 5.2vw, 72px);
  line-height: 1;
  white-space: nowrap;
}

h2 {
  max-width: 900px;
  margin-bottom: 18px;
  font-size: clamp(32px, 4.6vw, 64px);
  font-weight: 950;
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: clamp(22px, 2vw, 30px);
  font-weight: 940;
  line-height: 1.2;
}

.selected-lede,
.selected-heading p,
.contact-card p {
  max-width: 780px;
  margin-bottom: 0;
  font-size: clamp(17px, 1.55vw, 22px);
  line-height: 1.7;
}

.selected-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.selected-heading {
  margin-bottom: clamp(22px, 3.4vw, 36px);
}

.content-board {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 14px;
  align-items: stretch;
}

.content-phone,
.content-card,
.content-note,
.metric-card,
.trend-panel,
.pain-card,
.contact-card,
.wechat-box {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.content-phone {
  overflow: hidden;
  padding: 16px;
  border-radius: 28px;
}

.content-phone img {
  width: 100%;
  height: 250px;
  border-radius: 20px;
  object-fit: cover;
}

.feed-item {
  display: grid;
  gap: 8px;
  padding: 18px 6px 10px;
  border-bottom: 1px solid rgba(99, 61, 35, 0.12);
}

.feed-item:last-child {
  border-bottom: 0;
}

.feed-item strong {
  font-size: 19px;
}

.feed-item span {
  color: var(--muted);
  font-size: 13px;
}

.content-stack {
  display: grid;
  gap: 14px;
}

.content-card,
.content-note {
  border-radius: 28px;
  padding: 24px;
}

.content-card {
  min-height: 184px;
  color: #fff;
  background:
    linear-gradient(140deg, rgba(202, 44, 28, 0.94), rgba(239, 79, 25, 0.9)),
    url("../assets/ai-opc-command-center.webp") center/cover;
}

.content-card h2 {
  max-width: 360px;
  margin-bottom: 12px;
  font-size: clamp(30px, 2.6vw, 38px);
  line-height: 1.08;
  white-space: nowrap;
}

.content-card p {
  margin-top: 22px;
}

.content-note {
  min-height: 224px;
}

.coverage-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.coverage-list li {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(239, 79, 25, 0.16);
  border-radius: 999px;
  color: var(--flame-dark);
  background: rgba(255, 243, 224, 0.74);
  font-size: 17px;
  font-weight: 900;
  white-space: nowrap;
}

.era-list {
  display: grid;
  position: relative;
  counter-reset: era;
  gap: 18px;
  padding-top: 4px;
}

.era-list li {
  position: relative;
  overflow: hidden;
  counter-increment: era;
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 32px;
  align-items: center;
  min-height: 104px;
  padding: 24px 32px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.84), rgba(255, 248, 238, 0.68)),
    radial-gradient(circle at 92% 22%, rgba(243, 112, 33, 0.12), transparent 16rem);
  box-shadow: 0 18px 54px rgba(81, 48, 28, 0.08);
}

.era-list li::before {
  position: absolute;
  right: 28px;
  top: -22px;
  content: "0" counter(era);
  color: rgba(201, 74, 0, 0.1);
  font-size: 86px;
  font-weight: 950;
  line-height: 1;
}

.era-list li::after {
  position: absolute;
  inset: 22px auto 22px 0;
  width: 4px;
  content: "";
  border-radius: 999px;
  background: linear-gradient(180deg, var(--deep-orange), var(--gold));
}

.era-list strong {
  position: relative;
  color: var(--deep-orange);
  font-size: clamp(24px, 2.2vw, 31px);
  line-height: 1.1;
}

.era-list p {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
  margin-bottom: 0;
  color: #2d2420;
  font-size: 18px;
  font-weight: 760;
  line-height: 1.65;
}

.era-hot {
  display: inline-flex;
  color: var(--deep-orange);
  font-weight: 950;
  line-height: 1.35;
  background: linear-gradient(180deg, transparent 58%, rgba(247, 165, 47, 0.22) 58%);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 20px;
}

.metric-card {
  position: relative;
  overflow: hidden;
  min-height: 178px;
  border-radius: 8px;
  padding: 26px;
}

.metric-card::after,
.pain-card::after {
  position: absolute;
  right: -42px;
  bottom: -48px;
  width: 130px;
  height: 130px;
  content: "";
  border: 1px solid rgba(239, 79, 25, 0.2);
  border-radius: 50%;
}

.metric-card .label {
  display: block;
  margin-bottom: 16px;
  color: var(--muted);
  font-weight: 900;
}

.metric-card strong {
  display: block;
  margin-bottom: 18px;
  font-size: clamp(42px, 4.6vw, 66px);
  line-height: 1;
}

.metric-card.metric-center strong {
  text-align: center;
}

.metric-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 16px;
  font-weight: 700;
}

.trend-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-radius: 8px;
  box-shadow: none;
}

.trend-panel div {
  min-height: 152px;
  padding: 28px;
  border-right: 1px solid var(--line);
}

.trend-panel div:last-child {
  border-right: 0;
}

.trend-panel span,
.evidence-chain span,
.solution-rail span,
.pain-card span {
  display: block;
  margin-bottom: 12px;
  color: #267684;
  font-size: 14px;
  font-weight: 950;
}

.trend-panel span {
  color: var(--hermes);
  font-size: 18px;
}

.trend-panel strong {
  display: block;
  margin-bottom: 12px;
  font-size: 24px;
}

.trend-panel p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 16px;
}

.evidence-chain {
  display: grid;
  border-left: 2px solid rgba(239, 79, 25, 0.58);
}

.evidence-chain span {
  color: var(--flame);
  font-size: 50px;
  line-height: 1.08;
}

.evidence-chain article {
  display: grid;
  grid-template-columns: minmax(260px, 0.36fr) minmax(0, 0.64fr);
  gap: clamp(24px, 5vw, 70px);
  align-items: center;
  min-height: 154px;
  padding: 24px 0 24px 34px;
  border-bottom: 1px solid var(--line);
}

.evidence-chain article:last-child {
  border-bottom: 0;
}

.evidence-chain p {
  max-width: 470px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
  font-weight: 700;
}

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

.pain-card {
  position: relative;
  overflow: hidden;
  min-height: 168px;
  border-radius: 8px;
  padding: 28px;
}

.pain-card h3 {
  margin-bottom: 12px;
}

.pain-card span {
  color: var(--hermes);
  font-size: 20px;
}

.pain-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
  font-weight: 700;
}

.solution-rail {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  overflow: hidden;
  counter-reset: solution;
  border: 1px solid rgba(99, 61, 35, 0.12);
  border-top: 0;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.5), rgba(255, 239, 213, 0.68)),
    radial-gradient(circle at 14% 18%, rgba(243, 112, 33, 0.16), transparent 17rem),
    radial-gradient(circle at 88% 12%, rgba(247, 165, 47, 0.18), transparent 16rem);
  box-shadow: 0 28px 74px rgba(81, 48, 28, 0.12);
}

.solution-rail::before {
  position: absolute;
  inset: 0 0 auto;
  z-index: 2;
  height: 5px;
  content: "";
  background: linear-gradient(90deg, var(--flame), var(--gold), var(--flame));
}

.solution-rail::after {
  position: absolute;
  inset: 34px 6% auto;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(239, 79, 25, 0.44), transparent);
}

.solution-rail article {
  position: relative;
  isolation: isolate;
  counter-increment: solution;
  min-height: 178px;
  padding: 34px 22px 30px;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.26), rgba(255, 245, 231, 0.06));
}

.solution-rail article::before {
  position: absolute;
  right: 20px;
  bottom: 10px;
  z-index: -1;
  content: "0" counter(solution);
  color: rgba(201, 74, 0, 0.09);
  font-size: 76px;
  font-weight: 950;
  line-height: 1;
}

.solution-rail article::after {
  position: absolute;
  top: 28px;
  right: 26px;
  width: 12px;
  height: 12px;
  content: "";
  border: 1px solid rgba(239, 79, 25, 0.38);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 0 0 8px rgba(239, 79, 25, 0.08);
}

.solution-rail article:last-child {
  border-right: 0;
}

.solution-rail span {
  display: inline-flex;
  color: var(--hermes);
  font-size: clamp(20px, 1.8vw, 24px);
  font-weight: 950;
  line-height: 1.15;
}

.solution-rail h3 {
  max-width: 240px;
  margin-bottom: 0;
  font-size: clamp(22px, 2vw, 28px);
  line-height: 1.18;
}

.solution-rail p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 16px;
  font-weight: 700;
}

.contact-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 360px);
  gap: clamp(28px, 7vw, 92px);
  align-items: center;
  padding: clamp(34px, 5vw, 52px) clamp(34px, 6vw, 56px);
  border-radius: 34px;
  background: rgba(255, 255, 255, 0.8);
}

.contact-card h2 {
  max-width: 680px;
  margin-bottom: 22px;
  font-size: clamp(44px, 5.2vw, 72px);
  line-height: 1.08;
}

.contact-card .selected-actions {
  margin-top: 30px;
}

.wechat-box {
  display: grid;
  place-items: center;
  padding: 30px;
  border-radius: 28px;
  box-shadow: none;
  background: rgba(255, 255, 255, 0.72);
}

.wechat-box-qr {
  display: block;
  width: min(100%, 320px);
  height: auto;
}

.qr-modal[hidden] {
  display: none;
}

.qr-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: clamp(18px, 5vw, 48px);
}

.qr-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(247, 250, 255, 0.84);
  backdrop-filter: blur(16px);
}

.qr-modal-panel {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  width: min(88vw, 860px);
  overflow: hidden;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(32, 24, 21, 0.16);
}

.qr-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 999px;
  background: rgba(239, 79, 25, 0.1);
  color: var(--flame);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

.qr-modal-copy,
.qr-modal-code {
  min-height: 360px;
  padding: clamp(34px, 5vw, 58px);
}

.qr-modal-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.qr-modal-line {
  width: 52px;
  height: 5px;
  margin-bottom: 26px;
  border-radius: 999px;
  background: #5c82ff;
}

.qr-modal-copy h2 {
  max-width: 390px;
  margin: 0 0 26px;
  color: var(--ink);
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.22;
}

.qr-modal-copy p {
  margin: 0 0 22px;
  color: #75829b;
  font-size: 18px;
}

.qr-modal-copy ul {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--ink);
  font-size: 18px;
  font-weight: 720;
}

.qr-modal-copy li {
  display: flex;
  align-items: center;
  gap: 14px;
}

.qr-modal-copy li::before {
  content: "✓";
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: #eaf1ff;
  color: #5c82ff;
  font-weight: 900;
}

.qr-modal-code {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #f3f7ff;
  text-align: center;
}

.qr-modal-qr {
  width: min(76vw, 280px);
  padding: 12px;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(32, 24, 21, 0.12);
}

.qr-modal-code img {
  width: 100%;
  height: auto;
}

.qr-modal-code strong {
  margin-top: 18px;
  color: var(--ink);
  font-size: 18px;
}

.qr-modal-code p {
  margin: 10px 0 0;
  color: #75829b;
  font-size: 16px;
}

.qr-modal-phone {
  margin-top: 10px;
  color: var(--flame-dark);
  font-size: 20px;
  font-weight: 850;
  letter-spacing: 0.04em;
}

.qr-modal-phone:hover,
.qr-modal-phone:focus-visible {
  color: var(--flame);
}

.qr-modal-open {
  overflow: hidden;
}

.selected-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  padding: 28px clamp(18px, 5vw, 54px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.footer-links {
  flex-basis: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 22px;
  padding-bottom: 6px;
}

.footer-links a:hover {
  color: var(--flame);
}

.section-more {
  margin-top: 26px;
  text-align: center;
  font-weight: 600;
}

.section-more a {
  color: var(--flame-dark);
}

.section-more a:hover {
  color: var(--flame);
}

.selected-footer span {
  display: inline-flex;
  align-items: center;
  line-height: 1.6;
}

.selected-footer a {
  color: inherit;
  text-decoration: none;
}

.gongan-record {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.gongan-record img {
  flex: 0 0 auto;
  width: 18px;
  height: auto;
}

.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 620ms ease, transform 620ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  html {
    scroll-padding-top: 170px;
  }

  .selected-header {
    align-items: center;
    gap: 10px 12px;
    min-height: auto;
    padding: 12px 18px 14px;
  }

  .selected-brand img {
    max-width: 52vw;
    height: 68px;
  }

  .selected-nav {
    order: 3;
    flex: 1 1 100%;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
    font-size: clamp(13px, 2.1vw, 16px);
    justify-content: flex-start;
  }

  .selected-nav a {
    min-height: 40px;
    padding: 0 8px;
  }

  .selected-phone {
    margin-left: auto;
    min-height: 40px;
    padding: 0 14px;
    font-size: clamp(22px, 3vw, 25px);
  }

  .selected-hero {
    padding-top: 160px;
  }

  .selected-hero-grid,
  .content-board,
  .metric-grid,
  .trend-panel,
  .pain-grid,
  .solution-rail,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .trend-panel div,
  .solution-rail article {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .trend-panel div:last-child,
  .solution-rail article:last-child {
    border-bottom: 0;
  }

  .evidence-chain article {
    grid-template-columns: 1fr;
    gap: 14px;
    min-height: auto;
    padding: 28px 0 28px 26px;
  }
}

@media (max-width: 640px) {
  .selected-header {
    gap: 8px;
    justify-content: flex-start;
    padding: 10px 14px 12px;
  }

  .selected-brand {
    flex: 0 1 32vw;
    max-width: 190px;
  }

  .selected-brand img {
    width: 100%;
    height: auto;
    max-height: 54px;
  }

  .selected-section {
    padding: 38px 16px;
  }

  .selected-section:not(.selected-hero) {
    padding-top: 54px;
    padding-bottom: 54px;
  }

  .selected-hero {
    padding-top: 190px;
  }

  h1 {
    font-size: clamp(38px, 13vw, 54px);
  }

  .headline-prefix {
    font-size: clamp(28px, 9vw, 38px);
  }

  .headline-main {
    font-size: clamp(40px, 12.2vw, 50px);
  }

  h2 {
    font-size: clamp(30px, 10vw, 44px);
  }

  .selected-nav {
    flex: 0 0 100%;
    flex-wrap: wrap;
    gap: 8px;
    max-width: 100%;
    overflow-x: visible;
    font-size: clamp(14px, 4vw, 17px);
  }

  .selected-nav a {
    min-height: 34px;
    padding: 0 10px;
  }

  .selected-phone {
    flex: 0 0 auto;
    position: absolute;
    top: 18px;
    right: 14px;
    z-index: 1;
    margin-left: 0;
    min-height: 36px;
    padding: 0 9px;
    font-size: clamp(19px, 3.6vw, 21px);
  }

  .qr-modal {
    padding: 16px;
  }

  .qr-modal-panel {
    grid-template-columns: 1fr;
    width: min(92vw, 420px);
  }

  .qr-modal-copy,
  .qr-modal-code {
    min-height: auto;
    padding: 28px;
  }

  .qr-modal-copy h2 {
    font-size: clamp(26px, 8vw, 34px);
  }

  .qr-modal-qr {
    width: min(66vw, 240px);
  }

  .era-list li {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 22px;
  }

  .content-phone img {
    height: 230px;
  }

  .contact-card,
  .metric-card,
  .pain-card {
    border-radius: 24px;
  }

  .wechat-box-qr {
    width: min(100%, 280px);
  }
}