/* ==========================================================================
   Taimei ONECEM-Event+Engagement — Product page
   Native CSS, 1440px design, pixel-based positioning.
   ========================================================================== */

:root {
  --page-width: 1440px;
  --blue: #0A47ED;
  --dark-blue: #041884;
  --text-dark: #3E3E3E;
  --light-blue: #5EA4FF;
  --white: #FFFFFF;
  --card-bg: #F5F7FF;

  --font: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-cn: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* banner 背景 / 页脚 ::before 等以 100vw 铺满（含滚动条宽度），
   横向溢出统一由 html 裁剪；clip 彻底禁止横向滚动（含程序滚动），旧浏览器回退 hidden */
html {
  overflow-x: hidden;
  overflow-x: clip;
}

body {
  font-family: var(--font);
  background: #ffffff;
  color: var(--text-dark);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* 不在 body 上设 overflow-x: hidden：与 html 重复会让 body 成为滚动容器，
     右侧出现通高的滚动条/白边（100vw 满屏层会被 body 裁掉） */
}

img {
  display: block;
}

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

.page {
  position: relative;
  width: var(--page-width);
  margin: 0 auto;
}

/* ==========================================================================
   Banner
   ========================================================================== */

.banner {
  position: relative;
  height: 800px;
}

/* 背景：横向远宽于纵向的扁椭圆径向，底部本身会整宽渐隐到纯白，无需蒙版；
   宽度取 max(1440px, 100vw)：窗口窄于 1440 时 100vw 小于页面宽度，
   径向边缘落进页面内会形成左右竖向断层 */
.banner__bg {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: max(1440px, 100vw);
  height: 100%;
  background: radial-gradient(
    450% 100% at 50% 100%,
    rgba(255, 255, 255, 1) 11%,
    rgba(0, 147, 213, 1) 35%,
    rgba(0, 15, 96, 1) 89%
  );
}

.banner__wave {
  position: absolute;
  top: -139px;
  left: 451px;
  width: 1245px;
  height: 788px;
  opacity: 0.2;
}

.banner__content {
  position: absolute;
  top: 206px;
  left: 80px;
  width: 1360px;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
}

.banner__text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 640px;
  padding-right: 40px;
}

.banner__title {
  font-size: 64px;
  font-weight: 500;
  line-height: 70px;
  letter-spacing: -0.05em;
  color: var(--white);
}

.banner__subtitle {
  font-size: 30px;
  font-weight: 700;
  line-height: 40px;
  color: var(--white);
}

.banner__desc {
  font-size: 18px;
  font-weight: 400;
  line-height: 30px;
  color: rgba(245, 247, 255, 0.7);
}

.banner__product {
  position: relative;
  width: 720px;
  height: 360px;
  border-radius: 10px 0 0 10px;
  overflow: hidden;
}

.banner__product-img {
  width: 720px;
  height: 360px;
  object-fit: cover;
}

.banner__product-logo {
  position: absolute;
  top: 139px;
  left: 199px;
  width: 322px;
  height: 82px;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   中文版 banner（对齐设计稿 10987:65450）：标题合并为「无界-EVENT活动管理系统」、
   无副标题、产品图换成含「无界」角标的成品图。英文版不受影响。
   -------------------------------------------------------------------------- */
.banner__subtitle:empty {
  display: none;
}

html[lang="zh-cn"] .banner__title {
  line-height: 80px;
  letter-spacing: 0.05em;
  white-space: pre-line;
}

/* 中文版产品图已含角标，隐藏英文版的 ONECEM logo 叠加层 */
html[lang="zh-cn"] .banner__product-logo {
  display: none;
}

/* ==========================================================================
   Content
   ========================================================================== */

.content {
  position: relative;
  left: 80px;
  width: 1280px;
  height: 2702px;
}

/* 白底卡片 */
.card {
  position: absolute;
  width: 620px;
  background: var(--card-bg);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 40px;
  gap: 20px;
}

.card__title {
  flex: none;
  width: 540px;
  font-size: 30px;
  font-weight: 700;
  line-height: 40px;
  color: var(--blue);
  white-space: pre-line;
}

.card__list {
  flex: none;
  width: 540px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card__list li {
  position: relative;
  padding-left: 20px;
  font-size: 18px;
  font-weight: 400;
  line-height: 30px;
  color: var(--text-dark);
}

.card__list li::before {
  content: "-";
  position: absolute;
  left: 0;
  top: 0;
  line-height: 30px;
}

/* 卡片1（左列顶部）：Multi-Channel */
.card--multi {
  top: 0;
  left: 0;
}

.card__row {
  flex: none;
  width: 540px;
  height: 157px;
  object-fit: contain;
}

/* 卡片2（左列中部）：Comprehensive Meeting Solutions */
.card--meeting {
  top: 595px;
  left: 0;
}

/* 卡片3（左列底部）：Event Expense Management */
.card--expense {
  top: 1393px;
  left: 0;
}

/* 卡片4（右列顶部）：Integrated Meeting Tools Platform */
.card--platform {
  top: 0;
  left: 660px;
}

/* 卡片5（右列下部）：Data Insights */
.card--insights {
  top: 852px;
  left: 660px;
}

/* 卡片内嵌图片区 */
.card__imgwrap {
  flex: none;
  position: relative;
  width: 540px;
  overflow: hidden;
}

.card__imgwrap--meeting {
  height: 320px;
}

.card__imgwrap--meeting img {
  position: absolute;
  top: -53px;
  left: -66px;
  width: 643px;
  height: 429px;
  object-fit: fill;
}

.card__imgwrap--side {
  height: 240px;
}

.card__imgwrap--side img {
  position: absolute;
  top: -21px;
  left: 70px;
  width: 400px;
  height: 261px;
  object-fit: fill;
}

/* User Journey 大卡片 */
.journey {
  position: absolute;
  top: 2011px;
  left: 0;
  width: 1280px;
  height: 691px;
}

.journey__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  position: relative;
  height: 505px;
  background: #000000;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 100%;
  background: #000000;
  z-index: 0;
}

.footer__logo {
  position: absolute;
  top: 120px;
  left: 80px;
  z-index: 1;
}

.footer__nav {
  position: absolute;
  top: 100px;
  left: 409px;
  display: flex;
  gap: 20px;
  z-index: 1;
}

.footer__nav::before,
.footer__info::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -60px;
  width: 1px;
  height: 270px;
  background: rgba(255, 255, 255, 0.4);
}

.footer__nav-col {
  display: flex;
  flex-direction: column;
  min-width: 90px;
}

.footer__nav-title {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 700;
  line-height: 25px;
  color: var(--white);
}

.footer__nav-col a {
  font-size: 12px;
  font-weight: 300;
  line-height: 25px;
  color: var(--white);
  text-decoration: none;
  white-space: nowrap;
  transition: opacity 0.2s ease;
}

.footer__nav-col a:hover {
  opacity: 0.8;
}

.footer__info {
  position: absolute;
  top: 100px;
  left: 1027px;
  width: 255px;
  z-index: 1;
}

.footer__address {
  margin: 0;
  font-size: 12px;
  line-height: 25px;
  color: var(--white);
}

.footer__address strong,
.footer__address span {
  display: block;
}

.footer__address strong {
  font-weight: 700;
}

.footer__address span {
  font-weight: 300;
}

.footer__social {
  position: absolute;
  top: 146px;
  left: 0;
  display: flex;
  align-items: center;
  gap: 40px;
}

.footer__social a {
  display: inline-flex;
  color: var(--white);
  opacity: 0.4;
  transition: opacity 0.2s ease;
}

.footer__social a:hover {
  opacity: 1;
}

.footer__social img {
  width: 20px;
  height: 20px;
}

.footer__qr {
  position: absolute;
  top: 189px;
  left: 0;
  width: 80px;
  height: 80px;
  z-index: 1;
}

/* 右侧二维码（带太美 logo）；左侧为普通二维码，靠 left: 0 定位 */
.footer__qr--taimei {
  left: 152px;
}

.footer__badge {
  position: absolute;
  top: 99px;
  left: 1320px;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1;
}

.footer__badge img {
  display: block;
  width: 100%;
  height: 100%;
}

.footer__divider {
  position: absolute;
  top: 394px;
  left: 80px;
  width: 1280px;
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.4);
  z-index: 1;
}

.footer__legal {
  position: absolute;
  top: 416px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 20px;
  white-space: nowrap;
  z-index: 1;
}

.footer__legal span {
  font-size: 12px;
  line-height: 25px;
  color: var(--white);
  white-space: nowrap;
}

/* 窄屏 PC（980px–1439px）出血对齐已由 .banner__bg 的
   left:50% + translateX(-50%) + width:max(1440px,100vw) 处理，无需额外规则；
   抽象图已移除。 */