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

body {
    font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;
    background-color: #f5f5f7;
    color: #1d1d1f;
    line-height: 1.6;
    padding: 15px;
    font-size: 16px
}

.container {
    max-width: 1000px;
    margin: 0 auto 80px;
    background-color: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 15px rgba(0,0,0,.08)
}

.header {
    background-color: #fff;
    border-bottom: 1px solid #e0e0e0;
    padding: 15px 20px;
    margin-bottom: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,.05)
}

.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center
}

.nav-top-row {
    display: flex;
    align-items: center;
    gap: 60px
}

.logo {
    font-size: 20px;
    font-weight: 600;
    color: #1d1d1f;
    text-decoration: none;
    transition: opacity .2s
}

.logo:hover {
    opacity: .8
}

.nav-links {
    display: flex;
    gap: 25px;
    list-style: none
}

.nav-links a {
    color: #1d1d1f;
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    transition: all .2s;
    padding: 8px 0;
    border-bottom: 2px solid transparent
}

.nav-links a:hover {
    color: #0071e3;
    border-bottom-color: #0071e3
}

.search-container {
    display: flex;
    align-items: center;
    background-color: #f5f5f7;
    border-radius: 20px;
    padding: 5px 15px;
    gap: 10px;
    transition: all .2s
}

.search-container:focus-within {
    background-color: #fff;
    box-shadow: 0 0 0 2px rgba(0,113,227,.2)
}

.search-input {
    border: none;
    background: 0 0;
    outline: 0;
    font-size: 14px;
    color: #1d1d1f;
    max-width: 360px
}

.search-btn {
    background-color: #0071e3;
    color: #fff;
    border: none;
    border-radius: 15px;
    padding: 8px 15px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all .2s
}

.search-btn:hover {
    background-color: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,113,227,.3)
}

h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1d1d1f;
    line-height: 1.3;
    letter-spacing: -.5px
}

.standard-english-name {
    font-size: 16px;
    color: #6e6e73;
    margin-bottom: 20px;
    font-style: italic;
    line-height: 1.5
}

.breadcrumb {
    margin-bottom: 20px;
    font-size: 14px;
    color: #6e6e73
}

.breadcrumb a {
    color: #0071e3;
    text-decoration: none;
    transition: color .2s
}

.breadcrumb a:hover {
    color: #0056b3;
    text-decoration: underline
}

.breadcrumb span {
    margin: 0 8px;
    color: #c7c7cc
}

.standard-info {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 25px;
    font-size: 16px;
    align-items: center;
    justify-content: flex-start
}

.standard-code {
    background-color: #f0f0f0;
    padding: 6px 14px;
    border-radius: 20px;
    font-weight: 700;
    color: #0071e3;
    transition: all .2s
}

.standard-code:hover {
    background-color: rgba(0,113,227,.1)
}

.standard-category {
    background-color: #f0f0f0;
    padding: 6px 14px;
    border-radius: 20px;
    font-weight: 500;
    color: #6e6e73;
    transition: all .2s
}

.standard-status {
    background-color: #34c759;
    color: #fff;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 20px;
    display: inline-block
}

.standard-status.abandon {
    background: #d9534f
}

.standard-status {
    position: relative!important;
    cursor: help!important
}

.standard-status::after {
    content: "状态仅供参考";
    position: absolute;
    top: -26px;
    right: 0;
    transform: translateX(0);
    padding: 2px 6px;
    background: #f8f8f8;
    color: #888;
    font-size: 11px;
    border: 1px solid #eee;
    border-radius: 3px;
    white-space: nowrap;
    display: none;
    z-index: 9999
}

.standard-status::before {
    content: "";
    position: absolute;
    top: -1px;
    right: 6px;
    border: 4px solid transparent;
    border-top-color: #eee;
    display: none;
    z-index: 9999
}

.standard-status:hover::after,.standard-status:hover::before {
    display: block
}

a.standard-category {
    display: inline-block;
    text-decoration: none!important;
    cursor: pointer
}

a.standard-category:hover {
    background-color: #e5e5e5;
    color: #6e6e73
}

.section {
    margin-bottom: 35px;
    padding-top: 10px
}

.section h2 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 18px;
    color: #1d1d1f;
    padding-bottom: 10px;
    border-bottom: 2px solid #f0f0f0;
    letter-spacing: -.3px
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(230px,1fr));
    gap: 20px
}

.info-item {
    background-color: #f5f5f7;
    padding: 20px;
    border-radius: 12px;
    transition: all .3s ease;
    border: 1px solid transparent
}

.info-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,.08);
    border-color: rgba(0,113,227,.1)
}

.info-item h3 {
    font-size: 14px;
    font-weight: 700;
    color: #6e6e73;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: .5px
}

.info-item p {
    font-size: 16px;
    color: #1d1d1f;
    font-weight: 400;
    line-height: 1.6
}

.info-item a {
    color: #0071e3;
    text-decoration: none;
    transition: color .2s
}

.info-item a:hover {
    color: #0056b3;
    text-decoration: underline
}

.content-text {
    font-size: 16px;
    line-height: 1.8;
    color: #1d1d1f
}

.content-text p {
    margin-bottom: 15px
}

.people-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 15px
}

.people-item {
    background-color: #f0f0f0;
    padding: 10px 18px;
    border-radius: 20px;
    font-size: 14px;
    color: #1d1d1f;
    font-weight: 400;
    transition: all .2s ease;
    border: 1px solid transparent
}

.people-item:hover {
    background-color: rgba(0,113,227,.1);
    border-color: rgba(0,113,227,.3);
    transform: translateY(-1px)
}

.standards-table {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
    background-color: #fff;
    border-radius: 0 0 12px 12px;
    overflow: hidden;
    margin-bottom: 0
}

.standards-table td,.standards-table th {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #f0f0f0
}

.standards-table th {
    background-color: #f5f5f7;
    font-weight: 700;
    font-size: 14px;
    color: #6e6e73;
    text-transform: uppercase;
    letter-spacing: .5px
}

.standards-table td {
    font-size: 14px;
    color: #1d1d1f
}

.standards-table td:nth-child(2) {
    max-width: 400px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis
}

.standards-table tr:last-child td {
    border-bottom: none
}

.clickable-row {
    cursor: pointer;
    transition: background-color .2s ease
}

.clickable-row:hover {
    background-color: rgba(0,113,227,.05)!important
}

.standards-table td a {
    color: #0071e3;
    text-decoration: none;
    font-weight: 700;
}

.standards-table td a:hover {
    text-decoration: underline
}

.collapse-container {
    margin-bottom: 20px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: none;
    border: 1px solid #e1edfa;
    transition: border-color .2s ease
}

.collapse-container:hover {
    border-color: #c1d9f0
}

.collapse-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #f8fbff;
    padding: 16px 20px;
    cursor: pointer;
    transition: background-color .2s ease
}

.collapse-header:hover {
    background-color: #f0f7ff
}

.collapse-title {
    font-size: 16px;
    font-weight: 600;
    color: #1d1d1f;
    text-decoration: none;
    letter-spacing: .2px
}

.collapse-title:hover {
    color: #0071e3
}

.collapse-icon {
    width: 20px;
    height: 20px;
    transition: transform .2s ease,scale .2s ease;
    color: #0071e3
}

.collapse-header:hover .collapse-icon {
    scale: 1.05
}

.collapse-icon.rotate {
    transform: rotate(180deg)
}

.collapse-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
    background-color: #fff;
    padding: 0
}

.collapse-content.show {
    max-height: 2000px;
    padding-bottom: 0
}

.collapse-content .standards-table {
    margin: 0;
    border-radius: 0;
    box-shadow: none
}

.download-section {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1000px;
    padding: 0 30px;
    box-sizing: border-box;
    z-index: 100;
    display: flex;
    justify-content: flex-end;
}

.download-btn {
    background-color: #0071e3;
    color: #fff;
    border: none;
    border-radius: 35px;
    padding: 14px 35px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all .3s ease;
    width: auto;
    box-shadow: 0 4px 15px rgba(0,113,227,.3);
}

.download-btn:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,113,227,.4)
}

.download-btn:active {
    transform: translateY(0)
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,.5);
    /* backdrop-filter: blur(5px); */
    animation: fadeIn .3s ease
}

@keyframes fadeIn {
    from {
        opacity: 0
    }

    to {
        opacity: 1
    }
}

.modal-content {
    background-color: #fff;
    margin: 15% auto;
    padding: 20px;
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    text-align: center;
    box-shadow: 0 15px 40px rgba(0,0,0,.2);
    animation: slideUp .3s ease
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0
    }

    to {
        transform: translateY(0);
        opacity: 1
    }
}

.modal h3#modalTitle {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1d1d1f;
    letter-spacing: -.5px
}

.modal #modalContent {
    font-size: 16px;
    color: #6e6e73;
    margin-bottom: 20px;
    line-height: 1.7
}

.qrcode-container {
    margin: 15px 0 25px;
    padding: 15px
}

.qrcode-img {
    width: 200px;
    height: 200px;
    object-fit: contain;
    border-radius: 8px
}

.modal-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 10px
}

.modal-btn {
    padding: 10px 28px;
    border: none;
    border-radius: 20px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all .3s ease;
    min-width: 200px;
    display: inline-flex;
    align-items: center;
    justify-content: center
}

.modal-btn#wxPayBtn.wx-pay,.modal-btn#wxPayJsapiBtn.wx-pay {
    background-color: #34c759;
    color: #fff;
    box-shadow: 0 2px 10px rgba(52,199,89,.3);
    width: 100%;
    display: none
}

.modal-btn.wx-pay:before {
    content: "";
    width: 16px;
    height: 16px;
    margin-right: 6px;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background-position: center center;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1024 1024'%3E%3Cpath d='M964.949 290.702L377.856 629.76l-3.527 2.389c-4.665 2.389-9.444 3.527-15.36 3.527-12.971 0-23.666-7.054-29.582-17.749l-2.389-4.665-93.298-203.321c-1.138-2.389-1.138-4.665-1.138-7.054 0-9.444 7.054-16.612 16.612-16.612 3.527 0 7.054 1.138 10.581 3.527l109.909 78.052c8.192 4.665 17.749 8.192 28.331 8.192 5.916 0 11.719-1.138 17.749-3.527l515.186-229.262C838.77 134.713 686.421 63.716 513.82 63.716 232.676 63.716 3.413 254.066 3.413 489.131c0 127.545 68.494 243.371 176.014 321.422 8.192 5.916 14.108 16.612 14.108 27.193 0 3.527-1.138 7.054-2.389 10.581-8.192 31.858-22.528 83.968-22.528 86.244-1.138 3.527-2.389 8.192-2.389 12.971 0 9.444 7.054 16.612 16.612 16.612 3.527 0 7.054-1.138 9.444-3.527l111.047-64.967c8.192-4.665 17.749-8.192 27.193-8.192 4.665 0 10.581 1.138 15.36 2.389 51.996 15.36 108.772 23.666 166.684 23.666 261.129 0 490.391-190.35 490.391-425.291 0-70.997-21.276-138.24-57.913-197.404z' fill='%23FFFFFF'/%3E%3C/svg%3E")
}

.modal-btn#wxPayBtn.wx-pay:hover,.modal-btn#wxPayJsapiBtn.wx-pay:hover {
    background-color: #28a745;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(52,199,89,.4)
}

.modal-btn#aliPayBtn.ali-pay {
    background-color: #007aff;
    color: #fff;
    box-shadow: 0 2px 10px rgba(0,122,255,.3);
    display: none
}

.modal-btn.ali-pay:before {
    content: "";
    width: 16px;
    height: 16px;
    margin-right: 6px;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background-position: center center;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1024 1024'%3E%3Cpath d='M561.911 1024h-99.724c-13.037-2.286-26.05-4.67-39.111-6.859-201.881-34.052-368.372-193.247-411.059-393.498-4.865-22.839-8.051-46.044-12.016-69.077v-85.131q3.454-21.38 6.932-42.76c32.374-202.392 192.152-371.267 392.379-414.392 22.839-4.062 46.418-7.297 69.483-10.337h85.131c14.594 2.432 29.382 4.621 44.073 7.005 202.197 32.958 369.71 191.374 413.492 391.042 4.621 21.21 7.978 42.711 11.943 64.091v99.724c-2.432 14.594-4.354 29.48-7.54 43.976-5.181 23.52-11.213 46.822-17.026 70.877-105.489-26.755-204.849-63.24-304.768-100.673 36.485-65.015 63.41-131.928 80.266-204.63h-190.717v-67.545h232.236v-39.598h-233.501V149.489c-33.444 0-65.794-0.438-98.119 0.243-11.335 0.219-15.372 8.756-15.348 19.458v82.698c0 4.257-0.365 8.489-0.584 13.548H232.893v39.209h235.933v67.886h-194.584v38.917h377.858a16.661 16.661 0 0 1 0 3.235 588.423 588.423 0 0 1-50.568 123.731c-1.07 1.97-6.859 3.113-9.729 2.214-71.437-22.45-143.165-43.49-217.789-52.757-43.246-5.351-86.031-5.862-128.45 6.543-85.568 25.028-139.833 97.292-131.344 181.79 4.719 47.211 25.636 84.96 64.334 112.859 52.611 37.944 112.348 48.111 174.931 42.2 76.034-7.297 142.557-38.917 200.543-87.758 28.628-24.128 54.703-51.273 81.969-77.104 98.922 43.538 199.789 87.903 300.608 132.22a10.337 10.337 0 0 1-0.657 2.724c-1.484 2.432-3.04 4.865-4.694 7.078-75.961 104.954-176.585 173.302-302.749 203.365-21.964 5.156-44.39 8.173-66.596 12.21z' fill='%23FFFFFF'/%3E%3Cpath d='M548.849 621.721c-54.386 67.423-115.486 122.783-201.541 140.271-57.038 11.602-113.394 6.543-160.994-31.279-62.267-49.473-41.349-128.401 12.818-155.667 45.849-23.156 93.96-29.188 144.43-23.35 72.872 8.148 138.082 38.211 205.286 70.026z' fill='%23FFFFFF'/%3E%3C/svg%3E")
}

.modal-btn#aliPayBtn.ali-pay:hover {
    background-color: #0062cc;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0,122,255,.4)
}

.modal-btn#downloadBtn.primary.download {
    background-color: #0071e3;
    color: #fff;
    box-shadow: 0 2px 10px rgba(0,113,227,.3);
    display: none
}

.modal-btn#downloadBtn.primary.download:hover {
    background-color: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0,113,227,.4)
}

.footer {
    background-color: #fff;
    border-top: 1px solid #e0e0e0;
    padding: 15px 20px;
    margin-top: 50px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 -2px 10px rgba(0,0,0,.05)
}

.footer-content {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer p {
    font-size: 14px;
    color: #6e6e73;
    line-height: 1.5
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 22px;
    list-style: none;
    flex-wrap: wrap
}

.footer-links a {
    color: #6e6e73;
    text-decoration: none;
    font-size: 13px;
    transition: all .2s;
    padding: 5px 0;
    border-bottom: 1px solid transparent
}
.footer-links a:hover {
    color: #0056b3;
    border-bottom-color: #0056b3
}
.topic-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 15px
}

.topic-tag {
    background-color: #f0f0f0;
    padding: 8px 10px;
    border-radius: 12px;
    font-size: 14px;
    color: #1d1d1f;
    font-weight: 400;
    text-decoration: none;
    transition: all .2s ease;
    border: 1px solid transparent
}

.topic-tag:hover {
    background-color: rgba(0,113,227,.1);
    border-color: rgba(0,113,227,.3);
    color: #0071e3;
    transform: translateY(-1px)
}



#standard-interpretation .interpretation-content {
    padding: 16px 24px;
    border-radius: 12px;
    background-color: #fafafa;
    margin: 8px 0;
    font-size: 16px;
    line-height: 1.8;
    color: #1d1d1f
}

#standard-interpretation .interpretation-content p {
    margin-bottom: 16px;
    line-height: 1.7
}

#standard-interpretation .interpretation-content p:last-child {
    margin-bottom: 0
}

#standard-interpretation .interpretation-content strong {
    color: #1d1d1f;
    font-weight: 600
}

#standard-interpretation .interpretation-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: #1d1d1f;
    margin: 24px 0 16px;
    line-height: 1.4;
    letter-spacing: -.3px;
    position: relative;
    padding-left: 12px
}

#standard-interpretation .interpretation-content h3::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    width: 4px;
    height: 18px;
    background-color: #0071e3;
    border-radius: 2px
}

#standard-interpretation .interpretation-content h3:first-of-type {
    margin-top: 0
}

#standard-interpretation .interpretation-content ol,#standard-interpretation .interpretation-content ul {
    margin: 0 0 16px 24px;
    padding: 0
}

#standard-interpretation .interpretation-content li {
    margin-bottom: 10px;
    line-height: 1.7;
    color: #1d1d1f
}

#standard-interpretation .interpretation-content ol ol,#standard-interpretation .interpretation-content ol ul,#standard-interpretation .interpretation-content ul ol,#standard-interpretation .interpretation-content ul ul {
    margin: 8px 0 8px 20px
}

#standard-interpretation .interpretation-content blockquote {
    margin: 16px 0;
    padding: 16px 20px;
    border-left: 4px solid #d5e8fa;
    background-color: #f5f5f7;
    border-radius: 0 8px 8px 0;
    font-size: 15px;
    line-height: 1.7;
    color: #424245
}

#standard-interpretation .interpretation-content hr {
    border: none;
    height: 1px;
    background-color: #e0e0e0;
    margin: 24px 0;
    width: 100%
}

#standard-interpretation .interpretation-content table {
    width: 100%;
    /*border-collapse: collapse;*/
    border-collapse: separate;
    border-spacing: 0;
    margin: 20px 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,.05);
    border:1px solid #e5e7eb; /* 外框 */
}

#standard-interpretation .interpretation-content th {
    background-color: #f5f5f7;
    font-weight: 600;
    color: #1d1d1f;
    padding: 12px 16px;
    text-align: left;
    font-size: 14px;
    border: none;
    border-bottom: 1px solid #e0e0e0
}

#standard-interpretation .interpretation-content td {
    padding: 12px 16px;
    font-size: 14px;
    color: #1d1d1f;
    border: none;
    border-bottom: 1px solid #f0f0f0;
    line-height: 1.6
}

#standard-interpretation .interpretation-content tr:last-child td {
    border-bottom: none
}

#standard-interpretation .interpretation-content tr:hover td {
    background-color: #f8f8f8
}

#standard-interpretation .interpretation-content img {
    max-width: 100%!important;
    width: auto!important;
    height: auto!important;
    display: block!important;
    margin: 16px auto!important;
    border-radius: 8px!important;
    object-fit: contain!important
}

#standard-interpretation .interpretation-tip {
    margin-top: 20px;
    padding-top: 12px;
    border-top: 1px solid #eee;
    font-size: 12px;
    color: #888;
    text-align: right;
    line-height: 1.4
}
#standard-interpretation .interpretation-tip::before {
  content: "";
  display: inline-block;
  width: 15px;
  height: 15px;
  margin-right: 4px;
  vertical-align: -1px; 
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1024 1024"><path fill="%23cccccc" d="M1018.141696 393.89184c0-46.211072-37.464064-83.67616-83.664896-83.67616-46.222336 0-83.6864 37.465088-83.6864 83.67616s37.464064 83.6864 83.6864 83.6864c46.200832 0 83.664896-37.475328 83.664896-83.6864zM979.821568 910.418944l38.320128-285.390848a83.67616 83.67616 0 1 0-167.350272 0l38.80448 292.050944c5.317632 23.353344 27.759616 38.65088 51.433472 35.090432 23.694336-3.571712 40.605696-17.880064 38.792192-41.749504zM500.383744 821.588992H294.943744l-60.114944 134.173696H16.662528l275.51232-614.918144h245.05856l177.12128 614.918144H539.046912l-38.663168-134.173696zM419.994624 542.49472l-79.762432 177.999872h131.04128L419.994624 542.49472z"></path></svg>');
  background-repeat: no-repeat;
  background-size: contain;
}
#standard-interpretation .interpretation-tip a {
    color: #888;
    text-decoration: none
}

#standard-interpretation .interpretation-tip a:hover {
    color: #666;
    text-decoration: underline
}

@media (min-width: 769px) {
    .standards-table td:nth-child(1),.standards-table th:nth-child(1) {
        width:20%!important;
        min-width: 120px
    }

    .standards-table td:nth-child(2),.standards-table th:nth-child(2) {
        width: 40%!important;
        min-width: 200px
    }

    .standards-table td:nth-child(3),.standards-table th:nth-child(3) {
        width: 10%!important;
        text-align: center
    }

    .standards-table td:nth-child(4),.standards-table th:nth-child(4) {
        width: 15%!important;
        text-align: center
    }

    .standards-table td:nth-child(5),.standards-table th:nth-child(5) {
        width: 15%!important;
        text-align: center
    }
}

@media (max-width: 768px) {
    body {
        padding:10px
    }

    .container {
        padding: 20px;
        margin-bottom: 70px
    }

    h1 {
        font-size: 24px
    }

    .standard-info {
        gap: 12px;
        align-items: flex-start;
        justify-content: flex-start
    }

    .nav-container {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
        padding: 10px 0
    }

    .nav-top-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        gap: 15px
    }

    .nav-links {
        flex-direction: row;
        gap: 15px;
        width: 100%;
        overflow-x: auto;
        padding: 5px 0
    }

    .nav-links a {
        padding: 8px 0;
        border-bottom: none;
        white-space: nowrap
    }

    .nav-links a:hover {
        color: #0071e3
    }

    .header {
        padding: 10px 20px
    }

    .nav-links::-webkit-scrollbar {
        display: none
    }

    .nav-links {
        -ms-overflow-style: none;
        scrollbar-width: none
    }

    .search-container {
        width: auto;
        max-width: 170px;
        justify-content: space-between
    }

    .search-input {
        width: calc(100% - 59px)
    }

    .info-grid {
        grid-template-columns: 1fr
    }

    .people-list {
        gap: 10px
    }

    .people-item {
        padding: 8px 15px;
        font-size: 13px
    }

    .download-section {
        bottom: 10px;
        padding: 0 20px;
        display: flex;
        justify-content: flex-end;
    }

    .download-btn {
        padding: 12px 20px;
        font-size: 14px
    }

    .modal-content {
        margin: 25% auto;
        padding: 20px;
        width: 95%
    }

    .modal-buttons {
        flex-direction: column;
        align-items: center;
        gap: 8px
    }

    .modal-btn {
        width: 100%
    }

    .footer-content{
        flex-direction: column;
        justify-content:center;
    }
    .footer-links{
        display: none;
    }
    .footer-content p{
        text-align:center;
    }

    .standards-table td:nth-child(n+3),.standards-table th:nth-child(n+3) {
        display: none
    }

    .standards-table {
        overflow-x: hidden;
        display: table;
        width: 100%!important;
        min-width: 0!important;
        max-width: 100%!important;
        box-sizing: border-box
    }

    .standards-table td,.standards-table th {
        padding: 12px 8px;
        font-size: 13px;
        box-sizing: border-box
    }

    .standards-table td:nth-child(1),.standards-table th:nth-child(1) {
        width: 38%!important;
        min-width: 0!important;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis
    }

    .standards-table td:nth-child(2),.standards-table th:nth-child(2) {
        width: 62%!important;
        min-width: 0!important;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis
    }

    .topic-tags-list {
        gap: 10px
    }

    .topic-tag {
        padding: 8px 15px;
        font-size: 13px
    }

    #standard-interpretation .interpretation-content {
        padding: 12px 16px;
        font-size: 15px
    }

    #standard-interpretation .interpretation-content h3 {
        font-size: 17px;
        padding-left: 8px
    }

    #standard-interpretation .interpretation-content h3::before {
        height: 16px
    }

    #standard-interpretation .interpretation-content ol,#standard-interpretation .interpretation-content ul {
        margin: 0 0 16px 16px
    }

    #standard-interpretation .interpretation-content table {
        display: block;
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-radius: 8px
    }

    #standard-interpretation .interpretation-content blockquote {
        padding: 12px 16px;
        font-size: 14px
    }

    #standard-interpretation .interpretation-tip {
        font-size: 11px
    }

    @media (max-width: 480px) {
        h1 {
            font-size:20px
        }

        .section h2 {
            font-size: 19px
        }

        .container {
            padding: 15px;
            border-radius: 8px
        }

        .info-item {
            padding: 16px
        }

        .topic-tag {
            padding: 7px 12px;
            font-size: 12px
        }

        #standard-interpretation .interpretation-content {
            padding: 10px 12px;
            border-radius: 8px;
            font-size: 14px
        }

        #standard-interpretation .interpretation-content h3 {
            font-size: 16px;
            margin: 20px 0 12px
        }

        #standard-interpretation .interpretation-content td,#standard-interpretation .interpretation-content th {
            padding: 10px 12px;
            font-size: 13px
        }
    }
}

.modal-tab-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 6px;
    margin-bottom: 24px;
    position: relative
}

.tab-group-left {
    display: flex;
    gap: 6px
}

.tab-group-right {
    display: flex;
    align-items: center;
    gap: 10px
}

.modal-tab {
    padding: 7px 14px;
    font-size: 16px;
    font-weight: 500;
    color: #6e6e73;
    cursor: pointer;
    position: relative;
    transition: color .24s ease;
    white-space: nowrap
}

.modal-tab::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -7px;
    height: 4px;
    background: 0 0;
    border-radius: 3px;
    transition: background .24s ease
}

.modal-tab:hover,
.modal-tab.active {
    color: #0071e3
}
.modal-tab:hover::after,
.modal-tab.active::after {
    background-color: #0071e3
}

.modal-close-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
    transition: all .24s ease;
    background: #fff;
    position: absolute;
    top: -30px;
    right: -30px;
}

.modal-close-icon:hover {
    transform: rotate(180deg);
}

.modal-close-icon svg {
    width: 26px;
    height: 26px;
    fill: #ffffff;
    background: #6e6e73;
    border-radius: 50%;
    padding: 4px;
    box-sizing: border-box;
}

.vip-tip-text {
    text-align: center;
    color: #6e6e73;
    margin-bottom: 16px;
    font-size: 14px
}

.vip-card-wrap {
    display: flex;
    gap: 20px;
    margin-bottom: 16px;
    width: 100%
}

.vip-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    flex: 1
}

@media screen and (min-width: 769px) {
    .vip-card-wrap {
        overflow-x:visible
    }

    .vip-card {
        width: 100%;
        min-width: 0;
        min-height: 160px;
        display: flex;
        flex-direction: column;
        justify-content: space-between
    }

    .vip-card-more {
        justify-content: center!important
    }
}

@media screen and (max-width: 768px) {
    .vip-card-wrap {
        overflow-x:auto;
        scrollbar-width: thin
    }

    .vip-card-link {
        flex: none;
        width: 160px
    }

    .vip-card {
        min-height: 150px
    }
}

.vip-card {
    width: 100%;
    border-radius: 10px;
    padding: 14px;
    border: 1px solid transparent;
    transition: all .28s ease;
    position: relative;
    overflow: visible!important;
    background: linear-gradient(145deg,#fff,#e8f2ff);
    border: 1px solid #0071e3!important;
    padding-top: 18px!important
}

.vip-card-more {
    display: flex;
    align-items: center;
    justify-content: center
}

.vip-card-recommend .vip-tag {
    position: absolute;
    top: -11px;
    left: 50%;
    transform: translateX(-50%);
    background: #0071e3;
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,113,227,.3);
    letter-spacing: .5px;
    overflow: visible;
    z-index: 10
}

.vip-card-title {
    font-size: 18px;
    font-weight: 600;
    color: #1d1d1f;
    margin-top: 4px;
    margin-bottom: 4px;
    text-align: center
}

.vip-card-price {
    font-size: 30px!important;
    font-weight: 700;
    color: #0071e3;
    margin-bottom: 10px;
    text-align: center
}

.vip-card-price small {
    font-size: 14px;
    opacity: .8;
    color: #6e6e73
}

.vip-card-benefit {
    color: #424245;
    font-size: 14px;
    line-height: 1.6;
    text-align: center
}

.vip-card-benefit li {
    position: relative;
    padding-left: 12px;
    margin-bottom: 6px
}

.vip-card-benefit li::marker {
    content: none
}

.vip-card-benefit li::before {
    content: none
}

.vip-card-more-text {
    color: #0071e3;
    font-size: 14px;
    transition: color .2s ease
}

.vip-card-link:hover .vip-card-more-text {
    color: #0056b3
}

.vip-bottom-text {
    text-align: center;
    font-size: 14px;
    margin-top: 8px!important;
    line-height: 1.7
}

.vip-bottom-text a {
    color: #0071e3;
    cursor: pointer
}

.vip-bottom-text a:hover {
    text-decoration: underline
}

#regBox-content {
    max-width: 340px;
    margin: 0 auto;
}

.form-input {
    width: 100%;
    box-sizing: border-box;
    padding: 12px 16px;
    border: 1px solid #e0e0e0;
    border-radius: 20px;
    outline: 0;
    font-size: 14px;
    color: #1d1d1f!important;
    background-color: #f5f5f7!important;
    transition: all .25s ease
}

.form-input:focus {
    background-color: #fff;
    box-shadow: 0 0 0 2px rgba(0,113,227,.2);
    border-color: #0071e3
}

.form-row {
    margin-bottom: 14px
}

.form-agree {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 11px;
    color: #6e6e73;
    margin: 10px 0 18px;
    text-align: left
}

.form-agree input[type=checkbox] {
    margin-top: 3px;
    width: 11px;
    height: 11px;
    cursor: pointer
}

.form-agree a {
    color: #0071e3;
    text-decoration: none
}

.form-agree a:hover {
    text-decoration: underline
}

.form-tip-link {
    text-align: center;
    font-size: 14px;
    color: #6e6e73;
    margin-top: 10px
}

.form-tip-link a {
    color: #0071e3;
    text-decoration: none
}

.form-tip-link a:hover {
    text-decoration: underline
}

.modal-btn.loginBtn {
    background-color: #0071e3;
    color: #fff;
    box-shadow: 0 2px 10px rgba(0,113,227,.3);
}

.modal-btn.loginBtn:hover {
    background-color: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0,113,227,.4)
}

.modal-btn.regBtn {
    background-color: #34c759;
    color: #fff;
    box-shadow: 0 2px 10px rgba(52,199,89,.3);
}

.modal-btn.regBtn:hover {
    background-color: #28a745;
    transform: translateY(-1px);
    box-shadow: 0 2px 10px rgba(52,199,89,.3)
}
.tab-panel {
    width: 100%;
    min-height: 200px;
    text-align: left
}

@media screen and (max-width: 768px) {
    .vip-card-recommend .vip-tag {
        display:none
    }

    .vip-card-recommend {
        padding-top: 16px!important
    }
}

.feedback-btn {
    border-radius: 35px;
    padding: 14px 30px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all .3s ease;
    width: auto;
    margin-left: 14px;
    border: 1px solid #e0e0e2;
    background-color: #e9e9eb;
    color: #0071e3;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.feedback-btn:hover {
    background-color: #dfdfe2;
    border-color: #d0d0d3;
    color: #0071e3;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.14);
}

.feedback-btn:active {
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

@media (max-width: 768px) {
    .feedback-btn {
        padding: 12px 20px;
        font-size: 14px;
        margin-left: 10px;
    }
}
.preview-header-wrap {
    margin-bottom:24px;
    padding-bottom:18px;
    /* border-bottom:1px solid #e5e5e7; */
}
.preview-meta-row {
    display:flex;
    flex-wrap:wrap;
    gap:20px;
    margin-top:12px;
    font-size:15px;
    color:#6e6e73;
}
.preview-meta-item {
    display:flex;
    align-items:center;
    /*gap:6px;*/
}
.preview-meta-item strong {
    /* color:#1d1d1f; */
    font-weight:500;
}
.preview-image-container {
    width: 100%;
    border-radius: 12px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.preview-page-item {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.07);
    overflow: hidden;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.preview-page-item img {
    max-width: 100%;
    height:auto;
    display:block;
}
.preview-page-num {
    text-align:center;
    padding:10px;
    font-size:14px;
    color:#6e6e73;
    background:#fafafa;
}
@media(max-width:768px){
    .preview-meta-row {
        gap:12px;
        font-size:14px;
    }
    .preview-image-container {
        padding:12px;
    }
    .preview-page-item {
        margin-bottom:14px;
    }
    .preview-page-item img {
        width: 100%;
        height:auto;
        display:block;
    }
}

/* ===== 第三方登录双栏面板新增样式 ===== */
#downloadModal .modal-content {
    width: 640px !important;
}

.login-two-col-wrap {
    display: flex;
    gap: 24px;
    padding: 10px 0;
    width: 100%;
}
.login-col-left {
    flex: 1;
    text-align: center;
    border-right: 1px solid #e0e0e0;
}
.login-col-right {
    flex: 1;
    padding-right: 10px;
}
#qrcodeBox {
    width: 184px;
    height: 184px;
    margin: 0 auto;
    cursor: pointer;
    background-color: #f5f5f7;
    border-radius: 8px;
}
#wechatStatus {
    margin-top: 12px;
    font-size: 14px;
    color: #6e6e73;
}
#wechatTip {
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-weight: 600;
    color: #09BB07;
}
#qqLoginBtn {
    margin-top: 20px;
    background-color: #0071e3;
    color: #fff;
    box-shadow: 0 2px 10px rgba(0,113,227,.3);
}
#qqLoginBtn:hover {
    background-color: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0,113,227,.4);
}

/* 移动端登录双栏改为上下布局 */
@media (max-width: 576px) {
    .login-two-col-wrap {
        flex-direction: column;
        padding: 0 0;
        gap: 12px
    }
    .login-col-left {
        border-right: none;
        padding-right: 0;
        padding-bottom: 12px;
        border-bottom: 1px solid #e0e0e0;
    }
    .login-col-right {
        padding-left: 0;
    }
    .modal-tab {
        padding: 5px 5px;
    }
}

.wx-user-info {
    display: flex;
    align-items: center;
    gap: 8px;
}
.wx-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid #e5e5e5;
}
.wx-nick {
    color: #333;
}

.preview-meta-item .tag-item {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 0px 6px;
    background: transparent;
    border: 0;
    color: #6e6e73;
    font-size: 15px;
    line-height: 1.35;
    cursor: pointer;
    text-decoration: none;
    transition: color 0.22s ease;
}
.preview-meta-item .tag-item::before {
    content: "#";
    display: inline-block;
    flex-shrink: 0;
    font-style: normal;
    font-size: 24px;
    font-weight: 700;
    color: #0071e3;
    transition: color 0.22s ease;
    transform: scaleY(0.6);
}
.preview-meta-item .tag-item:hover {
    color: #0071e3;
}

@media (max-width: 768px) {
    .preview-meta-item .tag-item {
        font-size: 14px;
    }
    .preview-meta-item .tag-item::before {
        font-size: 18px;
    }
}

.header-flex-wrap {
    display: flex;
    gap: 30px;
    align-items: flex-start;
    margin-bottom: 24px;
}
.header-left {
    flex: 1;
}
.preview-img-box {
    max-width: 180px;
    flex-shrink: 0;
    margin-right: 20px;
}
.preview-img-box img {
    display: block;
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,.08);
}
@media (max-width:768px){
    .header-flex-wrap {
        flex-direction: column;
        gap:20px;
    }
    .preview-img-box {
        width:100%;
        margin-right: 0px;
    }
}