/* ---------- shared placeholder ---------- */
.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--placeholder);
  color: #6b7280;
}

/* ---------- news detail ---------- */
.article {
  padding: 71px 0 72px;
}

.article__inner {
  max-width: 800px;
  margin: 0 auto;
}

.article__title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.06em;
}

.article__meta {
  display: flex;
  gap: 14px;
  margin-top: 27px;
  font-size: 13px;
  line-height: 1;
  color: #9b9c9e;
  letter-spacing: -0.01em;
}

.article__meta i {
  font-style: normal;
}

.article__figure {
  height: 420px;
  margin-top: 29px;
  border-radius: 12px;
  font-size: 72px;
  line-height: 1;
}

.article__body {
  margin-top: 26px;
  font-size: 16px;
  line-height: 1.6;
  color: #5f6269;
}

.article__body p + p {
  margin-top: 30px;
}

.article__body h2 {
  margin-top: 36px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.article__body h2 + p {
  margin-top: 10px;
}

/* ---------- contact ---------- */
.contact {
  padding: 70px 0;
}

.contact__grid {
  display: flex;
  align-items: flex-start;
  gap: 40px;
}

.contact__info {
  width: 420px;
  height: 232px;
  padding: 40px 35px;
}

.contact__form {
  flex: 1;
  padding: 40px 35px 35px;
}

.contact__title {
  font-size: 21px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}

.contact__list {
  display: grid;
  gap: 26px;
  margin-top: 27px;
  font-size: 15px;
  line-height: 1;
  color: #4b4b4f;
}

.contact__list li {
  display: flex;
  align-items: center;
}

.contact__list svg {
  width: 18px;
  height: 18px;
  margin-right: 16px;
  color: var(--red-text);
  stroke-width: 1.8;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 17px;
}

.form-grid__full {
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-top: 14px;
}

.contact__submit {
  width: 128px;
  padding: 0;
}

.contact__map {
  height: 320px;
  font-size: 50px;
}

/* ---------- news list ---------- */
.thumb-grad {
  background: linear-gradient(135deg, #fbeef0 0%, #fdf7f8 100%);
}

.news-list {
  padding: 40px 0 60px;
}

.chips {
  display: flex;
  gap: 16px;
}

.chip {
  height: 40px;
  padding: 0 25px;
  font-size: 15px;
  color: #4b4b4f;
  background: #fff;
  border: 1px solid #e5e5e8;
  border-radius: 20px;
  transition: color .2s, border-color .2s, background-color .2s;
}

.chip:first-child {
  width: 80px;
  padding: 0;
}

.chip:hover {
  color: var(--red);
  border-color: var(--red);
}

.chip.is-active {
  color: #fff;
  background: var(--red);
  border-color: var(--red);
  font-weight: 500;
}

.news-rows {
  display: grid;
  gap: 24px;
  margin-top: 40px;
}

.news-row {
  display: flex;
  align-items: flex-start;
  height: 190px;
  padding: 19px;
  transition: box-shadow .2s, border-color .2s;
}

.news-row[hidden] {
  display: none;
}

.news-row:hover {
  border-color: #f0c9ce;
  box-shadow: 0 8px 24px rgb(218 58 70 / .08);
}

.news-row__thumb {
  flex: none;
  width: 240px;
  height: 150px;
  border-radius: 8px;
}

.news-row__body {
  display: flex;
  flex-direction: column;
  margin: 32px 0 0 28px;
}

.news-meta {
  font-size: 13px;
  line-height: 1;
  color: var(--text-3);
}

.news-row__title {
  margin-top: 14px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.05em;
  transition: color .2s;
}

.news-row:hover .news-row__title {
  color: var(--red);
}

.news-row__text {
  margin-top: 13px;
  font-size: 14px;
  line-height: 1;
  color: var(--text-3);
}

.pager {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}

.pager__item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-family: var(--font-en);
  font-size: 14px;
  color: #4b4b4f;
  border: 1px solid #e5e5e8;
  border-radius: 6px;
}

.pager__item:hover {
  color: var(--red);
  border-color: var(--red);
}

.pager__item.is-active {
  color: #fff;
  background: var(--red);
  border-color: var(--red);
  font-weight: 600;
}

/* ---------- solutions ---------- */
.sol-banner {
  height: auto;
  padding-bottom: 52px;
}

.sol-banner__desc {
  margin-top: 18px;
  font-size: 16px;
  color: var(--text-2);
}

.sol-tabs {
  position: sticky;
  top: var(--header-h);
  z-index: 40;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.sol-tabs__inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 56px;
  overflow-x: auto;
  white-space: nowrap;
}

.sol-tabs__group {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-3);
}

.sol-tabs__group + a {
  margin-left: -12px;
}

.sol-tabs a + .sol-tabs__group {
  padding-left: 28px;
  border-left: 1px solid var(--line);
}

.sol-tabs a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
}

.sol-tabs a:hover {
  color: var(--red-text);
}

.sol {
  padding: 80px 0;
  scroll-margin-top: calc(var(--header-h) + 56px);
}

.sol__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

.sol__tag {
  display: inline-block;
  padding: 3px 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--red-text);
  background: #fcf1f2;
  border-radius: 4px;
}

.sol__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.2;
}

.sol__title svg {
  flex: none;
  width: 34px;
  height: 34px;
  color: var(--red-text);
  stroke-width: 1.6;
}

.sol__scene {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-2);
}

.sol__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 36px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.sol__stat {
  padding: 22px 28px;
}

.sol__stat + .sol__stat {
  border-left: 1px solid var(--line);
}

.sol__stat strong {
  font-family: var(--font-en);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
}

.sol__stat span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-3);
}

.sol__sub {
  margin-top: 40px;
  font-size: 18px;
  font-weight: 700;
}

.sol__grid {
  margin-top: 16px;
  gap: 16px;
}

.sol-card {
  padding: 22px 22px 24px;
}

.sol-card h4 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.sol-card p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
}

/* 方案卡用红色顶边，和挑战卡区分 */
.sol-card--solid,
.sol-card--step {
  border-top: 3px solid var(--red);
}

.sol-card__no {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  color: var(--red-text);
}

.sol-card__no + h4 {
  margin-top: 8px;
}

.sol-flow,
.sol-faq {
  padding: 80px 0;
}

.sol-flow__list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.sol-flow__list li {
  padding-top: 20px;
  border-top: 2px solid var(--line);
}

.sol-flow__list li:first-child {
  border-top-color: var(--red);
}

.sol-flow__list span {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  color: var(--red-text);
}

.sol-flow__list h4 {
  margin-top: 10px;
  font-size: 16px;
  font-weight: 700;
}

.sol-flow__list p {
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-2);
}

.sol-faq__list {
  display: grid;
  gap: 12px;
  margin-top: 32px;
}

.sol-faq details {
  padding: 0 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.sol-faq summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  font-size: 16px;
  font-weight: 600;
  list-style: none;
  cursor: pointer;
}

.sol-faq summary::-webkit-details-marker {
  display: none;
}

.sol-faq summary::after {
  content: '+';
  font-weight: 400;
  color: var(--red);
}

.sol-faq details[open] summary::after {
  content: '\2212';
}

.sol-faq details p {
  padding-bottom: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
}

.sol-faq__cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 32px;
  padding: 24px 28px;
  color: var(--text-2);
  background: var(--tint);
  border: 1px solid var(--tint-line);
  border-radius: var(--radius);
}

/* ---------- about ---------- */
.about__title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
}

.about-intro {
  padding: 87px 0 80px;
}

.about-intro__zh {
  margin-top: 28px;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.06em;
  color: #4b4b4f;
}

.about-gene {
  padding: 87px 0 96px;
}

.genes {
  margin-top: 38px;
}

.gene {
  padding: 36px 40px 40px;
  border-top: 3px solid var(--red);
}

.gene__en {
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--red-text);
}

.gene h3 {
  margin-top: 12px;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
}

.gene p {
  margin-top: 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-2);
}

/* ---------- technology ---------- */
.tech-arch {
  padding: 80px 0;
}

.tech-arch__title {
  margin: 45px 0 40px;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
}

.tech-stack {
  height: 374px;
  padding-top: 87px;
}

.tech-stack__grid {
  margin-top: 40px;
}

.stack-card {
  height: 137px;
  padding: 31px 27px 0;
}

.stack-card h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.stack-card p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 23px;
  letter-spacing: -0.03em;
  color: var(--text-3);
}

.tech-results {
  height: 399px;
  padding-top: 85px;
}

.tech-results__grid {
  margin-top: 41px;
}

.result-card {
  height: 162px;
  padding: 32px 35px 0;
}

.result-card h3 {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.result-card p {
  margin-top: 17px;
  font-size: 15px;
  line-height: 1.2;
  color: var(--text-3);
}

.result-card .link-more {
  display: inline-block;
  margin-top: 18px;
  font-size: 15px;
  line-height: 1.2;
}

.tech-idea {
  height: 205px;
  padding-top: 67px;
}

.tech-idea__text {
  margin-top: 22px;
  font-size: 16px;
  line-height: 1.2;
  letter-spacing: -0.06em;
  color: #5f6269;
}

/* ---------- product ---------- */
.biz--token {
  height: 1096px;
  padding-top: 84px;
}

.biz--dc {
  height: 862px;
  padding-top: 79px;
  overflow: hidden;
}

.biz__no {
  display: block;
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.2em;
  color: var(--red-text);
}

.biz__title {
  margin-top: 17px;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}

.biz__desc {
  margin-top: 46px;
  font-size: 16px;
  line-height: 1;
  letter-spacing: -0.045em;
  color: #5f6269;
}

.biz__media {
  display: flex;
  align-items: center;
  margin-top: 42px;
}

.biz__media--dc {
  margin-top: 42px;
}

.biz__media--dc .biz__aside {
  margin-top: 8px;
}

.biz__img {
  flex: none;
  border-radius: 12px;
}

.biz__aside {
  margin-left: 40px;
}

.biz__subhead {
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}

.biz__subhead--block {
  margin-top: 38px;
}

.abilities + .biz__subhead--block {
  margin-top: 40px;
}

.biz--dc .biz__title {
  margin-top: 21px;
}

.biz--dc .biz__subhead--block {
  margin-top: 38px;
}

.bullets {
  display: grid;
  gap: 22px;
  margin-top: 22px;
  font-size: 16px;
  line-height: 1;
  color: #4b4b4f;
}

.bullets li {
  position: relative;
  padding-left: 20px;
}

.bullets li::before {
  content: '';
  position: absolute;
  top: 4px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
}

.abilities {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 17px;
  margin-top: 40.5px;
}

.abilities span {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  font-size: 14.5px;
  color: #4b4b4f;
  border: 1px solid #e8e8ea;
  border-radius: 6px;
}

.modes {
  margin-top: 35px;
}

.mode-card,
.coop-card {
  padding: 36px 31px 0;
}

.mode-card {
  height: 120px;
}

.coop-card {
  height: 118px;
}

.mode-card.is-featured {
  border-color: #c9505b;
}

.mode-card h4,
.coop-card h4 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.is-featured h4 {
  color: var(--red-text);
}

.mode-card p,
.coop-card p {
  margin-top: 13px;
  font-size: 14px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: #8d8e92;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 15px 12px;
  width: 440px;
  margin-top: 21px;
}

.tags li {
  display: flex;
  align-items: center;
  height: 45px;
  padding: 0 18px;
  font-size: 15.5px;
  color: #4b4b4f;
  background: #fff;
  border: 1px solid #ecdfe1;
  border-radius: 8px;
  transition: color .2s, background-color .2s, border-color .2s;
}

.tags li:hover {
  color: #fff;
  background: #5f6574;
  border-color: #3a3d46;
}

.coops {
  gap: 26px;
  margin-top: 40px;
}