/* 主容器 — 宽度100%，无max-width限制 */
.banner-wrapper {
    width: 100%;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    overflow: visible;
}

/* ----- 桌面版 (≥1200px) 图文分离 ----- */
.banner-desktop {
    display: none;
    width: 100%;
    position: relative;
    background-color: transparent;
}

/* 背景图容器 — 宽100%，高度随背景图比例 (1920:855) */
.banner-bg {
    width: 100%;
    background-image: url('/images/banner_bg.jpg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center top;
    aspect-ratio: 1920 / 855;
    position: relative;
}

/* 所有文字内容绝对定位在背景图之上 */
.banner-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 1.8% 3% 2% 3%;
    color: #1a1a1a;
    text-shadow: none;
}

/* 第1部分：大标题 */
.main-title {
    font-size: 2.6rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-align: center;
    color: #000000;
    text-shadow: none;
    line-height: 1.2;
    width: 100%;
    margin-top: 2.1%;
    margin-bottom: 1.2rem;
}

/* 第2部分：8个图标卡片 */
.icon-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 0.8rem 3.5rem;
    width: 92%;
    margin: 0.8rem auto 1.6rem auto;
}

.icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.icon-img {
    width: 100%;
    aspect-ratio: 162 / 104;
    border-radius: 6px;
    overflow: hidden;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.3rem;
}

.icon-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.icon-label {
    background-color: #0368cd;
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.2rem 0.2rem;
    border-radius: 3px;
    text-align: center;
    width: 92%;
    max-width: 92%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
    letter-spacing: 0.02em;
    box-shadow: 0 2px 6px rgba(3, 104, 205, 0.2);
}

/* 第3部分：3行 */
.feature-rows {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4.1rem;
    margin-top: 3.2%;  /* 从2.5%改为3.2% */
}

.feature-row {
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    backdrop-filter: none;
    border-radius: 0;
    padding: 0.2rem 0.4rem;
    min-height: 3.6rem;
    box-shadow: none;
    width: 60%;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.feature-row.row-1 { width: 45%; }
.feature-row.row-2 { width: 55%; }
.feature-row.row-3 { width: 70%; }

/* 行内左右块 — 统一宽度110px */
.row-left, .row-right {
    background-color: #0368cd;
    color: white;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    line-height: 1.4;
    white-space: nowrap;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(3, 104, 205, 0.2);
    width: 110px;
    min-height: 2.8rem;
    padding: 0.2rem 0.3rem;
    flex-shrink: 0;
}

/* 第2行、第3行左右块保持统一宽度110px */
.feature-row.row-2 .row-left,
.feature-row.row-2 .row-right,
.feature-row.row-3 .row-left,
.feature-row.row-3 .row-right {
    width: 110px;
    min-height: 2.8rem;
    font-size: 0.85rem;
    padding: 0.2rem 0.3rem;
}

/* ---- 中间连接组件 ---- */
.row-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.1rem;
    flex-shrink: 0;
    height: 100%;
}

.row-connector .dot {
    width: 6px;
    height: 6px;
    background: #000000;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.row-connector .dash-line {
    height: 1px;
    background: transparent;
    border-top: 1px dashed #000000;
    display: inline-block;
    flex-shrink: 0;
}

.feature-row.row-1 .row-connector .dash-line { width: 120px; }
.feature-row.row-2 .row-connector .dash-line { width: 180px; }
.feature-row.row-3 .row-connector .dash-line { width: 320px; }

.row-connector .block {
    width: 15px;
    height: 15px;
    background: #0368cd;
    display: inline-block;
    flex-shrink: 0;
    border-radius: 2px;
}

/* 中间文字组 */
.center-text-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1.2;
    flex-shrink: 0;
}

.center-text-group .main-label {
    font-weight: 700;
    font-size: 1.0rem;
    color: #000000;
    letter-spacing: 0.02em;
    text-shadow: none;
}

.center-text-group .sub-label {
    font-weight: 500;
    font-size: 0.85rem;
    color: #0368cd;
    background: transparent;
    padding: 0;
    border-radius: 0;
    margin-top: 0.05rem;
}

/* ============================================ */
/* 响应式断点 — 每100px调整 */
/* ============================================ */

/* 1920px+ 默认值已在上面定义 */

/* 1800px ~ 1919px */
@media (max-width: 1919px) {
    .icon-grid { gap: 0.7rem 3.2rem; }
    .icon-label { font-size: 0.85rem; }
    .main-title { font-size: 2.5rem; }
    .row-left, .row-right { width: 105px; min-height: 2.6rem; font-size: 0.85rem; }
    .feature-row.row-2 .row-left, .feature-row.row-2 .row-right,
    .feature-row.row-3 .row-left, .feature-row.row-3 .row-right { width: 105px; min-height: 2.6rem; font-size: 0.8rem; }
    .feature-row.row-1 .row-connector .dash-line { width: 115px; }
    .feature-row.row-2 .row-connector .dash-line { width: 170px; }
    .feature-row.row-3 .row-connector .dash-line { width: 305px; }
    .feature-rows { gap: 3.3rem; margin-top: 2.7%; }
    .center-text-group .main-label { font-size: 0.95rem; }
    .center-text-group .sub-label { font-size: 0.8rem; }
    .row-connector .dot { width: 5px; height: 5px; }
    .row-connector .block { width: 14px; height: 14px; }
}

/* 1700px ~ 1799px */
@media (max-width: 1799px) {
    .icon-grid { gap: 0.6rem 2.8rem; }
    .icon-label { font-size: 0.8rem; }
    .main-title { font-size: 2.4rem; }
    .row-left, .row-right { width: 100px; min-height: 2.4rem; font-size: 0.8rem; }
    .feature-row.row-2 .row-left, .feature-row.row-2 .row-right,
    .feature-row.row-3 .row-left, .feature-row.row-3 .row-right { width: 100px; min-height: 2.4rem; font-size: 0.75rem; }
    .feature-row.row-1 .row-connector .dash-line { width: 108px; }
    .feature-row.row-2 .row-connector .dash-line { width: 160px; }
    .feature-row.row-3 .row-connector .dash-line { width: 285px; }
    .feature-rows { gap: 2.7rem; margin-top: 2.2%; }
    .center-text-group .main-label { font-size: 0.9rem; }
    .center-text-group .sub-label { font-size: 0.75rem; }
    .row-connector .dot { width: 5px; height: 5px; }
    .row-connector .block { width: 13px; height: 13px; }
}

/* 1600px ~ 1699px */
@media (max-width: 1699px) {
    .icon-grid { gap: 0.6rem 2.5rem; }
    .icon-label { font-size: 0.75rem; }
    .main-title { font-size: 2.3rem; }
    .row-left, .row-right { width: 95px; min-height: 2.2rem; font-size: 0.75rem; }
    .feature-row.row-2 .row-left, .feature-row.row-2 .row-right,
    .feature-row.row-3 .row-left, .feature-row.row-3 .row-right { width: 95px; min-height: 2.2rem; font-size: 0.7rem; }
    .feature-row.row-1 .row-connector .dash-line { width: 100px; }
    .feature-row.row-2 .row-connector .dash-line { width: 148px; }
    .feature-row.row-3 .row-connector .dash-line { width: 265px; }
    .feature-rows { gap: 2.2rem; margin-top: 1.8%; }
    .center-text-group .main-label { font-size: 0.85rem; }
    .center-text-group .sub-label { font-size: 0.7rem; }
    .row-connector .dot { width: 5px; height: 5px; }
    .row-connector .block { width: 12px; height: 12px; }
}

/* 1500px ~ 1599px */
@media (max-width: 1599px) {
    .icon-grid { gap: 0.5rem 2.2rem; }
    .icon-label { font-size: 0.7rem; }
    .main-title { font-size: 2.2rem; }
    .row-left, .row-right { width: 90px; min-height: 2.0rem; font-size: 0.7rem; }
    .feature-row.row-2 .row-left, .feature-row.row-2 .row-right,
    .feature-row.row-3 .row-left, .feature-row.row-3 .row-right { width: 90px; min-height: 2.0rem; font-size: 0.65rem; }
    .feature-row.row-1 .row-connector .dash-line { width: 92px; }
    .feature-row.row-2 .row-connector .dash-line { width: 135px; }
    .feature-row.row-3 .row-connector .dash-line { width: 240px; }
    .feature-rows { gap: 1.8rem; margin-top: 1.4%; }
    .center-text-group .main-label { font-size: 0.8rem; }
    .center-text-group .sub-label { font-size: 0.65rem; }
    .row-connector .dot { width: 4px; height: 4px; }
    .row-connector .block { width: 11px; height: 11px; }
}

/* 1400px ~ 1499px */
@media (max-width: 1499px) {
    .icon-grid { gap: 0.5rem 1.8rem; }
    .icon-label { font-size: 0.65rem; }
    .main-title { font-size: 2.1rem; }
    .row-left, .row-right { width: 85px; min-height: 1.8rem; font-size: 0.65rem; }
    .feature-row.row-2 .row-left, .feature-row.row-2 .row-right,
    .feature-row.row-3 .row-left, .feature-row.row-3 .row-right { width: 85px; min-height: 1.8rem; font-size: 0.6rem; }
    .feature-row.row-1 .row-connector .dash-line { width: 84px; }
    .feature-row.row-2 .row-connector .dash-line { width: 122px; }
    .feature-row.row-3 .row-connector .dash-line { width: 218px; }
    .feature-rows { gap: 1.5rem; margin-top: 1.1%; }
    .center-text-group .main-label { font-size: 0.75rem; }
    .center-text-group .sub-label { font-size: 0.6rem; }
    .row-connector .dot { width: 4px; height: 4px; }
    .row-connector .block { width: 10px; height: 10px; }
}

/* 1300px ~ 1399px */
@media (max-width: 1399px) {
    .icon-grid { gap: 0.4rem 1.5rem; }
    .icon-label { font-size: 0.6rem; }
    .main-title { font-size: 2.0rem; }
    .row-left, .row-right { width: 80px; min-height: 1.6rem; font-size: 0.6rem; }
    .feature-row.row-2 .row-left, .feature-row.row-2 .row-right,
    .feature-row.row-3 .row-left, .feature-row.row-3 .row-right { width: 80px; min-height: 1.6rem; font-size: 0.55rem; }
    .feature-row.row-1 .row-connector .dash-line { width: 76px; }
    .feature-row.row-2 .row-connector .dash-line { width: 110px; }
    .feature-row.row-3 .row-connector .dash-line { width: 195px; }
    .feature-rows { gap: 1.2rem; margin-top: 0.8%; }
    .center-text-group .main-label { font-size: 0.7rem; }
    .center-text-group .sub-label { font-size: 0.55rem; }
    .row-connector .dot { width: 4px; height: 4px; }
    .row-connector .block { width: 9px; height: 9px; }
}

/* 1200px ~ 1299px */
@media (max-width: 1299px) {
    .icon-grid { gap: 0.3rem 1.2rem; }
    .icon-label { font-size: 0.55rem; }
    .main-title { font-size: 1.8rem; }
    .row-left, .row-right { width: 75px; min-height: 1.5rem; font-size: 0.55rem; }
    .feature-row.row-2 .row-left, .feature-row.row-2 .row-right,
    .feature-row.row-3 .row-left, .feature-row.row-3 .row-right { width: 75px; min-height: 1.5rem; font-size: 0.5rem; }
    .feature-row.row-1 .row-connector .dash-line { width: 58px; }
    .feature-row.row-2 .row-connector .dash-line { width: 88px; }
    .feature-row.row-3 .row-connector .dash-line { width: 155px; }
    .feature-rows { gap: 0.9rem; margin-top: 0.5%; }
    .center-text-group .main-label { font-size: 0.65rem; }
    .center-text-group .sub-label { font-size: 0.5rem; }
    .row-connector .dot { width: 3px; height: 3px; }
    .row-connector .block { width: 8px; height: 8px; }
}

/* 大屏幕微调 (≥1600px) */
@media (min-width: 1600px) {
    .main-title { font-size: 2.5rem; }
    .row-connector .block { width: 18px; height: 18px; }
}

/* 1200px以下移动版 */
@media (max-width: 1200px) {
    .icon-label { font-size: 0.5rem; }
}

/* ----- 手机版 (＜1200px) 直接显示 1 张图片 ----- */
.banner-mobile {
    display: block;
    width: 100%;
}

.banner-mobile img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 0;
    box-shadow: none;
}

/* 桌面版显示，移动版隐藏 */
@media (min-width: 1200px) {
    .banner-desktop { display: block; }
    .banner-mobile { display: none; }
}

@media (max-width: 1199.98px) {
    .banner-desktop { display: none !important; }
    .banner-mobile { display: block; }
}

.banner-wrapper {
    background: transparent;
}