* {
    box-sizing: border-box;
}

:root {
    --primary-red: #AD0800;
    --bg-white: #FFFFFF;
    --page-width: 1443px;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    color: #1f2430;
    background: #f7f8fb;
}

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

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

.header {
    background: var(--bg-white);
    position: sticky;
    top: 0;
    z-index: 1000;
    filter: drop-shadow(0px 0px 11px rgba(215, 215, 215, 0.329));
}

.header-wrapper {
    display: flex;
    flex-direction: column;
}

.header-top-bar {
    display: none;
}

.header-nav-bar {
    max-width: var(--page-width);
    margin: 0 auto;
    padding: 7px 121px;
    display: flex;
    align-items: center;
    gap: 30px;
    width: 100%;
    background: var(--bg-white);
}

.logo {
    flex: 0 0 auto;
}

.logo img {
    height: 32px;
    width: auto;
    max-width: none;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 35px;
    margin-left: 100px;
    white-space: nowrap;
}

.nav-link {
    color: #000000;
    font-family: 'PingFang SC', 'PingFangSC-Regular', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    font-weight: 400;
    padding: 8px 0;
    white-space: nowrap;
}

.nav-link.active,
.nav-link:hover {
    color: var(--primary-red);
    font-weight: bold;
}

.nav-link.contact {
    color: #000000;
    font-weight: 400;
}

.nav-link.contact:hover,
.nav-link.contact.active {
    color: var(--primary-red);
    font-weight: bold;
}

.search-container {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.search-box {
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #ED6525 0%, #EA1D1D 24%, #B80D0D 100%);
    border-radius: 11px;
    width: 454px;
    height: 38px;
    padding: 2px;
    gap: 0;
    overflow: hidden;
}

.search-inner {
    flex: 1;
    min-width: 0;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 6px;
    overflow: hidden;
    background: #fff;
    border-radius: 10px;
}

.search-input {
    width: 376px;
    flex-shrink: 0;
    border: none;
    background: #FFFFFF;
    padding: 0 15px;
    font-size: 14px;
    outline: none;
    color: #000;
    border-radius: 10px;
    height: 100%;
    margin: 0;
}

.search-input::placeholder {
    color: #9F9B9B;
}

.search-btn {
    flex: 1;
    background: transparent;
    color: #FFFFFF;
    padding: 0;
    font-size: 15px;
    font-weight: 400;
    font-family: 'PingFang SC', 'PingFangSC-Regular', sans-serif;
    white-space: nowrap;
    height: 100%;
    text-align: center;
    border: none;
    cursor: pointer;
}

.mobile-logo {
    display: none;
}

.mobile-fixed-btn {
    display: none;
}

.im-main {
    min-height: 60vh;
}

.im-wrap {
    width: min(1160px, calc(100% - 40px));
    margin: 0 auto;
}

.im-hero {
    background: #fff;
    border-bottom: 1px solid #e8ebf0;
    padding: 56px 0 46px;
}

.im-detail-hero {
    padding-top: 34px;
}

.im-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 56px;
    align-items: center;
}

.im-hero h1 {
    margin: 0;
    max-width: 860px;
    font-size: 42px;
    line-height: 1.18;
    font-weight: 800;
    color: #151922;
    letter-spacing: 0;
}

.im-lead {
    margin: 18px 0 0;
    max-width: 820px;
    color: #505b6b;
    font-size: 18px;
    line-height: 1.75;
}

.im-hero-actions {
    margin-top: 28px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.im-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 18px;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 600;
}

.im-btn-primary {
    background: #b4232a;
    color: #fff;
}

.im-btn-secondary {
    color: #253044;
    border: 1px solid #d7dce5;
    background: #fff;
}

.im-hero-panel {
    border: 1px solid #e3e7ee;
    background: #fbfcfe;
    border-radius: 8px;
    padding: 20px;
}

.im-hero-panel div {
    padding: 14px 0;
    border-bottom: 1px solid #e6eaf0;
}

.im-hero-panel div:last-child {
    border-bottom: 0;
}

.im-hero-panel span {
    display: block;
    color: #727d8c;
    font-size: 13px;
    margin-bottom: 6px;
}

.im-hero-panel strong {
    display: block;
    color: #202632;
    font-size: 18px;
    line-height: 1.45;
}

.im-section {
    padding: 54px 0;
}

.im-band {
    background: #eef2f6;
}

.im-section-head {
    margin-bottom: 24px;
}

.im-section-head h2,
.im-section-head h3,
.im-block h2,
.im-side-section h3,
.im-split h2 {
    margin: 0;
    color: #151922;
    font-size: 26px;
    line-height: 1.35;
    letter-spacing: 0;
}

.im-section-head p,
.im-split p {
    margin: 10px 0 0;
    max-width: 760px;
    color: #5d6878;
    line-height: 1.75;
    font-size: 16px;
}

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

.im-method-card {
    min-height: 218px;
    display: flex;
    flex-direction: column;
    border: 1px solid #e3e7ee;
    border-radius: 8px;
    background: #fff;
    padding: 22px;
    transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}

.im-method-card:hover {
    border-color: #c8a45d;
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(31, 36, 48, .08);
}

.im-method-card > span,
.im-related-grid span {
    color: #8a6a2b;
    font-size: 13px;
    font-weight: 700;
}

.im-method-card h3 {
    margin: 10px 0 10px;
    color: #151922;
    font-size: 21px;
    line-height: 1.4;
}

.im-method-card p {
    margin: 0;
    color: #5d6878;
    line-height: 1.7;
    font-size: 15px;
}

.im-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
    padding-top: 18px;
}

.im-tags em {
    font-style: normal;
    color: #404957;
    background: #f3f5f8;
    border: 1px solid #e5e9ef;
    border-radius: 999px;
    padding: 5px 10px;
    font-size: 13px;
}

.im-hero-tags {
    max-width: 820px;
    margin-top: 20px;
    padding-top: 0;
}

.im-takeaway-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    max-width: 1040px;
    margin-top: 24px;
}

.im-takeaway-grid div {
    min-height: 92px;
    border: 1px solid #e3e7ee;
    border-radius: 8px;
    background: #fbfcfe;
    padding: 14px;
}

.im-takeaway-grid span {
    display: block;
    color: #8a6a2b;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 7px;
}

.im-takeaway-grid strong {
    display: block;
    color: #202632;
    font-size: 15px;
    line-height: 1.55;
}

.im-split {
    display: grid;
    grid-template-columns: 330px minmax(0, 1fr);
    gap: 42px;
    align-items: start;
}

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

.im-process div {
    background: #fff;
    border: 1px solid #e2e6ee;
    border-radius: 8px;
    padding: 18px;
}

.im-process strong {
    display: block;
    color: #202632;
    font-size: 16px;
}

.im-process p {
    margin: 8px 0 0;
    color: #5d6878;
    font-size: 14px;
    line-height: 1.7;
}

.im-hub-intent {
    background: #fff;
    border-top: 1px solid #e8ebf0;
}

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

.im-intent-grid a {
    border: 1px solid #e3e7ee;
    border-radius: 8px;
    padding: 20px;
    background: #fbfcfe;
}

.im-intent-grid a:hover {
    border-color: #c8a45d;
}

.im-intent-grid span {
    display: block;
    color: #8a6a2b;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 8px;
}

.im-intent-grid strong {
    display: block;
    color: #202632;
    font-size: 19px;
    line-height: 1.4;
}

.im-intent-grid p {
    margin: 9px 0 0;
    color: #5d6878;
    line-height: 1.7;
    font-size: 15px;
}

.im-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
    color: #717b89;
    font-size: 14px;
}

.im-breadcrumb a:hover {
    color: #b4232a;
}

.im-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 30px;
    align-items: start;
}

.im-content {
    display: grid;
    gap: 22px;
}

.im-block {
    background: #fff;
    border: 1px solid #e3e7ee;
    border-radius: 8px;
    padding: 26px;
}

.im-block h2 {
    margin-bottom: 16px;
}

.im-definition {
    background: #fffdf8;
    border-color: #e5d6b7;
}

.im-definition p:last-child {
    margin: 0;
    color: #394250;
    font-size: 17px;
    line-height: 1.85;
}

.im-list {
    display: grid;
    gap: 12px;
}

.im-list p {
    display: grid;
    grid-template-columns: 10px minmax(0, 1fr);
    gap: 12px;
    margin: 0;
    color: #394250;
    line-height: 1.75;
}

.im-list span {
    width: 7px;
    height: 7px;
    margin-top: 11px;
    background: #b4232a;
    border-radius: 999px;
}

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

.im-step {
    border: 1px solid #e4e8ee;
    border-radius: 8px;
    padding: 18px;
    background: #fbfcfe;
}

.im-step span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 28px;
    background: #b4232a;
    color: #fff;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 700;
}

.im-step h3,
.im-scenario-list h3 {
    margin: 12px 0 8px;
    color: #202632;
    font-size: 18px;
    line-height: 1.4;
}

.im-step p,
.im-scenario-list p {
    margin: 0;
    color: #5d6878;
    line-height: 1.75;
    font-size: 15px;
}

.im-scenario-list {
    display: grid;
    gap: 14px;
}

.im-scenario-list div {
    border-left: 3px solid #c8a45d;
    padding: 2px 0 2px 16px;
}

.im-scenario-list h3 {
    margin-top: 0;
}

.im-audience-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

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

.im-diagnostic-grid div {
    border: 1px solid #e4e8ee;
    border-radius: 8px;
    padding: 16px;
    background: #fff;
}

.im-audience-grid div,
.im-next-list div {
    border: 1px solid #e4e8ee;
    border-radius: 8px;
    padding: 16px;
    background: #fbfcfe;
}

.im-audience-grid h3 {
    margin: 0 0 8px;
    color: #202632;
    font-size: 17px;
    line-height: 1.45;
}

.im-diagnostic-grid h3 {
    margin: 0 0 8px;
    color: #8a6a2b;
    font-size: 17px;
    line-height: 1.45;
}

.im-audience-grid p,
.im-diagnostic-grid p,
.im-next-list p {
    margin: 0;
    color: #5d6878;
    font-size: 15px;
    line-height: 1.75;
}

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

.im-fit-list div {
    border: 1px solid #e4e8ee;
    border-radius: 8px;
    padding: 16px;
    background: #fbfcfe;
}

.im-fit-list strong {
    display: block;
    margin-bottom: 7px;
    color: #202632;
    font-size: 16px;
    line-height: 1.45;
}

.im-fit-list p {
    margin: 0;
    color: #5d6878;
    font-size: 15px;
    line-height: 1.75;
}

.im-ordered {
    margin: 0;
    padding-left: 22px;
    color: #394250;
}

.im-ordered li {
    margin: 0 0 12px;
    line-height: 1.75;
}

.im-ordered li:last-child {
    margin-bottom: 0;
}

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

.im-deliverable-list p {
    display: grid;
    grid-template-columns: 18px minmax(0, 1fr);
    gap: 10px;
    align-items: start;
    margin: 0;
    color: #394250;
    line-height: 1.7;
    background: #fbfcfe;
    border: 1px solid #e4e8ee;
    border-radius: 8px;
    padding: 13px 14px;
}

.im-deliverable-icon {
    width: 18px;
    height: 18px;
    margin-top: 3px;
    color: #2f7d45;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.im-faq {
    display: grid;
    gap: 10px;
}

.im-next-list {
    display: grid;
    gap: 12px;
}

.im-next-list strong {
    display: block;
    margin-bottom: 7px;
    color: #202632;
    font-size: 16px;
    line-height: 1.45;
}

.im-faq details {
    border: 1px solid #e3e7ee;
    border-radius: 8px;
    padding: 15px 16px;
    background: #fbfcfe;
}

.im-faq summary {
    cursor: pointer;
    color: #202632;
    font-weight: 700;
    line-height: 1.5;
}

.im-faq p {
    margin: 10px 0 0;
    color: #5d6878;
    line-height: 1.75;
}

.im-side {
    display: grid;
    gap: 16px;
    position: sticky;
    top: 96px;
}

.im-side-section {
    background: #fff;
    border: 1px solid #e3e7ee;
    border-radius: 8px;
    padding: 20px;
}

.im-side-section h3 {
    font-size: 19px;
    margin-bottom: 14px;
}

.im-side-links,
.im-resource-list {
    display: grid;
    gap: 10px;
}

.im-side-links a {
    padding: 10px 12px;
    border-radius: 6px;
    background: #f4f6f9;
    color: #303846;
    font-size: 14px;
}

.im-side-links a:hover,
.im-resource-list a:hover {
    color: #b4232a;
}

.im-resource-list a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid #ebeff4;
}

.im-resource-list a:last-child {
    border-bottom: 0;
}

.im-resource-list strong {
    display: block;
    color: #202632;
    font-size: 15px;
    line-height: 1.55;
}

.im-resource-list span {
    display: block;
    margin-top: 4px;
    color: #727d8c;
    font-size: 13px;
    line-height: 1.5;
}

.im-resource-list em {
    display: inline-flex;
    margin-top: 8px;
    font-style: normal;
    color: #8a6a2b;
    background: #fff8e8;
    border: 1px solid #ead8af;
    border-radius: 999px;
    padding: 4px 8px;
    font-size: 12px;
    line-height: 1.3;
}

.im-empty {
    margin: 0 0 12px;
    color: #727d8c;
    line-height: 1.7;
    font-size: 14px;
}

.im-side-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 0 12px;
    border-radius: 4px;
    background: #b4232a;
    color: #fff;
    font-size: 14px;
}

.im-source-list {
    display: grid;
    gap: 10px;
}

.im-source-list p {
    margin: 0;
    padding: 10px 0;
    border-bottom: 1px solid #ebeff4;
}

.im-source-list p:last-child {
    border-bottom: 0;
}

.im-source-list strong {
    display: block;
    color: #202632;
    font-size: 14px;
    line-height: 1.5;
}

.im-source-list span {
    display: block;
    margin-top: 3px;
    color: #727d8c;
    font-size: 13px;
    line-height: 1.55;
}

.im-related-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.im-related-grid a {
    display: grid;
    gap: 8px;
    min-height: 104px;
    background: #fff;
    border: 1px solid #e3e7ee;
    border-radius: 8px;
    padding: 18px;
}

.im-related-grid a:hover {
    border-color: #c8a45d;
}

.im-related-grid strong {
    color: #202632;
    font-size: 17px;
    line-height: 1.45;
}

.im-related-grid em {
    color: #6b7482;
    font-size: 13px;
    line-height: 1.45;
    font-style: normal;
}

.footer {
    background: #000;
    padding: 50px 0 30px;
    margin-top: 80px;
}

.footer-content {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 121px;
}

.footer-intro {
    margin-bottom: 15px;
}

.footer-intro p,
.footer-desc {
    margin: 0;
    color: #7d7d7d;
    line-height: 1.8;
    font-size: 14px;
}

.footer-divider {
    width: 100%;
    height: 1px;
    background: #333;
    margin-bottom: 20px;
}

.footer-section-block {
    margin-bottom: 20px;
}

.footer-section-title {
    margin: 0 0 12px;
    color: #908f8f;
    font-size: 14px;
    font-weight: bold;
    font-family: 'PingFang SC', 'PingFangSC-Regular', sans-serif;
}

.footer-tags-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
}

.footer-tag {
    font-size: 14px;
    color: #908f8f;
    font-family: 'PingFang SC', 'PingFangSC-Regular', sans-serif;
    cursor: pointer;
    transition: color .2s ease;
    margin-right: 30px;
    margin-bottom: 8px;
}

.footer-tag a {
    color: inherit;
    font-size: inherit;
}

.footer-tag a:hover {
    color: #fff;
}

.footer-bottom {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 23px;
    padding-top: 20px;
    max-width: 1440px;
    margin: 0 auto;
    padding-left: 121px;
    padding-right: 121px;
}

.footer-bottom p {
    margin: 0;
    color: #7d7d7d;
    font-size: 14px;
}

.footer-copyright {
    text-align: left;
}

.footer-beian {
    text-align: left;
    white-space: nowrap;
}

.beian-icon {
    width: 16px;
    height: 16px;
    display: inline-block;
}

.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, .5);
    align-items: center;
    justify-content: center;
}

.modal-overlay:target,
.modal-overlay.active {
    display: flex;
}

.modal-box {
    position: relative;
    width: 265px;
    background: #fff;
    border-radius: 16px;
    overflow: visible;
    box-shadow: 0 8px 30px rgba(0, 0, 0, .3);
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 10;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, .3);
    color: #fff;
    cursor: pointer;
    font-size: 12px;
    line-height: 1;
}

.modal-close:hover {
    background: rgba(255, 255, 255, .5);
}

.modal-top {
    position: relative;
    height: 153px;
    color: #fff;
    padding: 21px 21px 0;
    overflow: hidden;
    box-sizing: border-box;
    background: #c62828;
    border-radius: 16px 16px 0 0;
}

.modal-card-bg {
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 265px;
    height: 153px;
}

.modal-title {
    margin: 0;
    position: relative;
    z-index: 1;
    color: #fff;
    font-family: Arial, sans-serif;
    font-size: 20px;
    font-weight: 400;
}

.modal-tip {
    margin: 8px 0 0;
    position: relative;
    z-index: 1;
    color: #fff;
    font-size: 14px;
    line-height: 1.4;
}

.modal-qrcode-wrap {
    position: relative;
    z-index: 2;
    width: 190px;
    height: 189px;
    margin: -60px auto 0;
}

.modal-qrcode-img {
    display: block;
    width: 190px;
    height: 189px;
    object-fit: cover;
    border-radius: 16px;
}

.modal-bottom {
    padding: 15px 21px 20px;
    background: #fff;
    border-radius: 0 0 16px 16px;
    text-align: center;
}

.modal-note {
    margin: 0;
    color: #131313;
    font-size: 14px;
    white-space: nowrap;
}

#gotop-btn {
    display: none;
    position: fixed;
    right: 26px;
    bottom: 34px;
    width: 44px;
    height: 44px;
    z-index: 30;
}

#gotop-btn img {
    width: 44px;
    height: 44px;
    display: block;
    object-fit: contain;
}

@media (min-width: 769px) and (max-width: 1420px) {
    .header-nav-bar {
        padding-right: 48px;
        padding-left: 48px;
        gap: 24px;
    }

    .nav-menu {
        gap: 24px;
        margin-left: 40px;
    }

    .pc-search {
        min-width: 0;
        flex: 0 1 454px;
    }

    .pc-search .search-box {
        width: 454px;
        min-width: 0;
    }

    .pc-search .search-input {
        width: 376px;
        min-width: 0;
    }
}

@media (min-width: 769px) and (max-width: 1320px) {
    .header-nav-bar {
        padding-right: 32px;
        padding-left: 32px;
    }

    .nav-menu {
        gap: 20px;
        margin-left: 28px;
    }

    .pc-search {
        flex-basis: 360px;
    }

    .pc-search .search-box {
        width: 360px;
    }

    .pc-search .search-input {
        width: auto;
        flex: 1;
    }
}

@media (max-width: 980px) {
    .header-nav-bar {
        padding-right: 24px;
        padding-left: 24px;
        gap: 20px;
    }

    .nav-menu {
        gap: 22px;
        margin-left: 24px;
    }

    .pc-search {
        display: none;
    }

    .im-hero-grid,
    .im-split,
    .im-layout {
        grid-template-columns: 1fr;
    }

    .im-side {
        position: static;
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

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

@media (max-width: 760px) {
    .header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        width: 100%;
        padding: 0;
        margin: 0;
        box-shadow: none;
    }

    .header-wrapper {
        width: 100%;
        max-width: 100%;
        padding: 0;
        margin: 0;
    }

    .header-top-bar {
        display: flex;
        align-items: center;
        background: #FFFFFF;
        padding: 8px 10px;
        width: 100%;
        box-sizing: border-box;
    }

    .search-container {
        display: flex;
        flex: 1;
        width: 100%;
    }

    .search-box {
        width: 100%;
        background: linear-gradient(135deg, #b80d0d 0%, #ea1d1d 85%, #ed6525 100%);
        border-radius: 13px;
        height: 44px;
        display: flex;
        align-items: center;
        padding: 2px;
        gap: 0;
        overflow: hidden;
    }

    .search-inner {
        flex: 1;
        display: flex;
        align-items: center;
        background: #FFFFFF;
        border-radius: 11px;
        height: 100%;
        padding: 0 8px;
        gap: 6px;
        min-width: 0;
        overflow: hidden;
    }

    .mobile-logo {
        display: block;
        height: 20px;
        width: 20px;
        flex-shrink: 0;
        border-radius: 4px;
        object-fit: cover;
    }

    .search-input {
        flex: 1;
        background: transparent;
        border: none;
        outline: none;
        padding: 0;
        font-size: 16px;
        color: #000;
        height: 100%;
        min-width: 0;
        width: auto;
    }

    .search-input::placeholder {
        color: #C2BFBF;
        font-size: 16px;
    }

    .search-btn {
        flex: 0 0 68px;
        background: transparent;
        color: #fff;
        padding: 0;
        font-size: 13px;
        font-weight: 400;
        height: 100%;
        text-align: center;
        white-space: nowrap;
    }

    .pc-search {
        display: none;
    }

    .header-nav-bar {
        min-height: auto;
        max-width: 100%;
        width: 100%;
        margin: 0;
        padding: 0 13px;
        gap: 0;
        justify-content: flex-start;
        box-sizing: border-box;
    }

    .logo {
        display: none;
    }

    .nav-menu {
        display: flex;
        flex-direction: row;
        position: static;
        box-shadow: none;
        padding: 0;
        gap: 0;
        margin-left: 0;
        flex-shrink: 0;
        width: 100%;
        justify-content: space-between;
        overflow-x: auto;
        scrollbar-width: none;
    }

    .nav-menu::-webkit-scrollbar {
        display: none;
    }

    .nav-link {
        flex: 0 0 auto;
        color: #000000;
        font-size: 15px;
        font-weight: 400;
        white-space: nowrap;
        padding: 10px 0;
        margin-right: 0;
    }

    .nav-link.active,
    .nav-link:hover {
        color: var(--primary-red);
        font-weight: bold;
    }

    .im-main {
        margin-top: 92px;
    }

    .im-wrap {
        width: min(100% - 28px, 1160px);
    }
}

@media (max-width: 360px) {
    .nav-menu {
        justify-content: flex-start;
        gap: 0;
    }

    .nav-link {
        margin-right: 18px;
    }
}

@media (max-width: 720px) {
    .im-wrap {
        width: min(100% - 28px, 1160px);
    }

    .im-hero {
        padding: 36px 0 32px;
    }

    .im-hero h1 {
        font-size: 31px;
    }

    .im-lead {
        font-size: 16px;
        line-height: 1.7;
    }

    .im-section {
        padding: 36px 0;
    }

    .im-card-grid,
    .im-takeaway-grid,
    .im-intent-grid,
    .im-process,
    .im-step-grid,
    .im-diagnostic-grid,
    .im-audience-grid,
    .im-deliverable-list,
    .im-fit-list,
    .im-related-grid,
    .im-side {
        grid-template-columns: 1fr;
    }

    .im-block,
    .im-method-card,
    .im-side-section {
        padding: 18px;
    }

    .im-section-head h2,
    .im-section-head h3,
    .im-block h2,
    .im-split h2 {
        font-size: 23px;
    }

    .footer {
        margin-top: 30px;
        padding: 30px 0 0;
        margin-bottom: 48px;
    }

    .footer-content,
    .footer-bottom {
        padding-left: 13px;
        padding-right: 13px;
    }

    .footer-section-title {
        font-size: 13px;
        margin-bottom: 10px;
    }

    .footer-tag {
        font-size: 13px;
        margin-right: 0;
        margin-bottom: 8px;
        width: 20%;
        text-align: left;
    }

    .footer-tags-hot .footer-tag {
        width: 25%;
    }

    .footer-desc,
    .footer-intro p {
        color: #908f8f;
        font-size: 13px;
    }

    .footer-desc {
        line-height: 1.8;
        margin-bottom: 6px;
    }

    .footer-section-block {
        margin-bottom: 16px;
    }

    .footer-divider {
        margin-bottom: 12px;
    }

    .footer-bottom {
        display: flex;
        flex-direction: column;
        align-items: center;
        padding-top: 10px;
        gap: 0;
    }

    .footer-bottom p {
        font-size: 13px;
        margin-bottom: 4px;
        text-align: center;
    }

    .footer-copyright,
    .footer-beian {
        text-align: center;
        white-space: normal;
    }

    #gotop-btn {
        right: 16px;
        bottom: 62px;
        width: 38px;
        height: 38px;
    }

    #gotop-btn img {
        width: 38px;
        height: 38px;
    }

    .mobile-fixed-btn {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 999;
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        padding: 8px 15px;
        border: none;
        background: #fff;
        box-shadow: 0 -4px 18px rgba(16, 24, 40, .08);
        cursor: pointer;
    }

    .fixed-btn-m {
        display: flex;
        align-items: center;
        justify-content: center;
        min-width: 0;
        height: 31px;
        padding: 0 15px;
        gap: 4px;
        border-radius: 8px;
        background: linear-gradient(135deg, #f26a21 0%, #fb0000 100%);
    }

    .fixed-btn-text,
    .fixed-btn-link {
        color: #fff;
        font-family: "PingFangSC-Regular", "PingFang SC", sans-serif;
        font-size: 14px;
        font-weight: 400;
        white-space: nowrap;
    }
}