/**
 * 鍏ㄧ珯鍏变韩锛欱anner + 鍚勭被 780脳440 / 780 鏂?鍥炬枃鍒嗘爮锛堢被鍚嶆部鐢?.calibration-*锛? *
 * 鍚細calibration-banner 路 calibration-m1-content 路 calibration-m4 路 m5 路 m6
 *     浠ュ強涓庡垎鏍忛厤濂楃殑 .hvac-section 路 .hvac-btn-* 路 .semi-m1-content--rtl 绛夛紙HVAC / IAQ / car 绛夐〉澶嶇敤锛? * 鏍″噯鏈嶅姟椤典笓鐢紙Tab/涓夊崱/鎸囨爣鏉★級浠嶅湪 calibration.css锛涜鏂囦欢浼?@import 鏈枃浠躲€? *
 * 搴旂敤椤垫ā鏉胯鐩存帴 <link> 鏈枃浠讹紝鍕夸緷璧?calibration.css锛岄伩鍏嶄笌鏍″噯椤佃€﹀悎銆? *
 * 娉ㄦ剰锛氬嬁鍦ㄧ珯鐐瑰眰瀵?.calibration-m1-content 缁熶竴璁剧疆 align-items:center锛? * 鍗曢〉鑻ラ渶鍨傜洿灞呬腑璇风敤椤甸潰鍛藉悕绌洪棿锛堝 .car-page锛夎鐩栥€? */

/* ========== Banner ========== */
.page-banner {
    position: relative;
    overflow: hidden;
}

.page-banner img {
    display: block;
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.page-banner .o_big_text {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    text-align: left;
    padding-left: calc(16% + 80px);
    box-sizing: border-box;
}

.page-banner .o_big_text h1 {
    font-size: 54px;
    font-family: "HarmonyOS Sans SC Light", sans-serif;
    font-weight: normal;
    margin: 0 0 12px 0;
    color: #ffffff;
    width: 100%;
    max-width: 960px;
    box-sizing: border-box;
    text-align: left;
}

.page-banner .o_big_text p {
    font-size: 20px;
    font-family: "HarmonyOS Sans SC Light", sans-serif;
    font-weight: normal;
    color: rgba(255, 255, 255, 0.95);
    margin: 0;
    line-height: 1.5;
    width: 100%;
    max-width: 960px;
    box-sizing: border-box;
    text-align: left;
}

/* ========== M1 分栏：左图右文（DOM 顺序图→文；反向用 flex-direction:row-reverse） ==========
 * 定稿宽约 780+780；公共层用流体避免 ≤1679 溢出。五档结构见文末。
 */
.calibration-m1-content {
    max-width: 1800px;
    margin: 0 auto;
    padding: 48px 40px 0;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: clamp(40px, 5vw, 100px);
    box-sizing: border-box;
}

.calibration-m1-img {
    flex: 1 1 0;
    min-width: 0;
    max-width: 780px;
}

.calibration-m1-img img {
    display: block;
    width: 100%;
    max-width: 780px;
    height: auto;
    aspect-ratio: 780 / 440;
    object-fit: cover;
}

.calibration-m1-text {
    flex: 1 1 0;
    min-width: 0;
    max-width: 780px;
    color: #132A3E;
}

.calibration-m1-title {
    font-size: 40px;
    font-family: "HarmonyOS Sans SC Light", sans-serif;
    font-weight: normal;
    color: #132A3E;
    margin: 0 0 20px 0;
}

.calibration-m1-subtitle,
.calibration-m1-title.calibration-m1-subtitle {
    font-family: "HarmonyOS Sans SC Light", sans-serif;
    font-weight: normal;
    color: #132A3E;
    margin: 24px 0 12px 0;
    line-height: 1.3;
}

.calibration-m1-subtitle {
    font-size: 35px;
}

.calibration-m1-title.calibration-m1-subtitle {
    font-size: 32px;
}

.calibration-m1-text p {
    font-size: 18px;
    line-height: 1.8;
    color: #132A3E;
    margin: 0 0 10px 0;
}

/* ========== 汽车页图文（car.htm .car-split-*；与 m1/m4 同流体五档） ========== */
.car-split-section--alt {
    background: #f8f9fa;
}

.car-split {
    max-width: 1800px;
    margin: 0 auto;
    padding: 48px 40px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: clamp(40px, 5vw, 100px);
    box-sizing: border-box;
}

.car-split__img {
    flex: 1 1 0;
    min-width: 0;
    max-width: 780px;
}

.car-split__img img {
    display: block;
    width: 100%;
    max-width: 780px;
    height: auto;
    aspect-ratio: 780 / 440;
    object-fit: cover;
}

.car-split__text {
    flex: 1 1 0;
    min-width: 0;
    max-width: 780px;
    color: #132A3E;
}

.car-split__title {
    font-size: 40px;
    font-family: "HarmonyOS Sans SC Light", sans-serif;
    font-weight: normal;
    color: #132A3E;
    margin: 0 0 20px 0;
}

.car-split__text p {
    font-size: 18px;
    line-height: 1.8;
    color: #132A3E;
    margin: 0 0 10px 0;
}

/* ========== M4锛氬乏鏂囧彸鍥?========== */
.calibration-m4 {
    padding: 72px 0;
    background-color: #ffffff;
}

.calibration-m4-inner {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: clamp(40px, 5vw, 100px);
    box-sizing: border-box;
}

.calibration-m4-text {
    flex: 1 1 0;
    min-width: 0;
    max-width: 780px;
    color: #132A3E;
}

.calibration-m4-title {
    font-size: 42px;
    font-family: "HarmonyOS Sans SC Light", sans-serif;
    font-weight: normal;
    color: #132A3E;
    margin: 0 0 20px 0;
}

.calibration-m4-text p {
    font-size: 18px;
    line-height: 1.8;
    color: #132A3E;
    margin: 0 0 10px 0;
}

.calibration-m4-btn {
    display: inline-block;
    margin-top: 18px;
    font-size: 18px;
    color: #00A1E9;
    text-decoration: none;
}

.calibration-m4-btn:hover {
    text-decoration: underline;
}

.calibration-m4-img {
    flex: 1 1 0;
    min-width: 0;
    max-width: 780px;
}

.calibration-m4-img img {
    display: block;
    width: 100%;
    max-width: 780px;
    height: auto;
    aspect-ratio: 780 / 440;
    object-fit: cover;
}

/* ========== M5锛氭繁钃?CTA 宸﹀浘鍙虫枃锛堣矾闈?澶槼鑳界瓑澶嶇敤锛?========== */
.calibration-m5 {
    padding: 72px 0;
    background-color: #132A3E;
    color: #ffffff;
}

.calibration-m5-inner {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: clamp(40px, 5vw, 100px);
    box-sizing: border-box;
}

.calibration-m5-img {
    flex: 1 1 0;
    min-width: 0;
    max-width: 780px;
}

.calibration-m5-img img {
    display: block;
    width: 100%;
    max-width: 780px;
    height: auto;
    aspect-ratio: 780 / 440;
    object-fit: cover;
}

.calibration-m5-text {
    flex: 1 1 0;
    min-width: 0;
    max-width: 780px;
}

.calibration-m5-title {
    font-size: 42px;
    font-family: "HarmonyOS Sans SC Light", sans-serif;
    font-weight: normal;
    color: #ffffff;
    margin: 0 0 20px 0;
}

.calibration-m5-text p {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 10px 0;
}

.calibration-m5-btn {
    display: inline-block;
    margin-top: 18px;
    font-size: 18px;
    color: #FF7A2F;
    text-decoration: none;
}

.calibration-m5-btn:hover {
    text-decoration: underline;
}

/* ========== M6锛氬乏鏂囧彸鍥撅紙鐏板簳锛?========== */
.calibration-m6 {
    padding: 72px 0;
    background-color: #f5f5f5;
}

.calibration-m6-inner {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: clamp(40px, 5vw, 100px);
    box-sizing: border-box;
}

.calibration-m6-text {
    flex: 1 1 0;
    min-width: 0;
    max-width: 780px;
    color: #132A3E;
}

.calibration-m6-title {
    font-size: 42px;
    font-family: "HarmonyOS Sans SC Light", sans-serif;
    font-weight: normal;
    color: #132A3E;
    margin: 0 0 20px 0;
}

.calibration-m6-text p {
    font-size: 18px;
    line-height: 1.8;
    color: #132A3E;
    margin: 0 0 10px 0;
}

.calibration-m6-lead {
    font-weight: 600;
    color: #132A3E;
    margin-top: 16px;
}

.calibration-m6-list {
    margin: 12px 0 20px 0;
    padding-left: 24px;
    font-size: 18px;
    line-height: 1.8;
    color: #132A3E;
}

.calibration-m6-btn {
    display: inline-block;
    margin-top: 18px;
    font-size: 18px;
    color: #00A1E9;
    text-decoration: none;
}

.calibration-m6-btn:hover {
    text-decoration: underline;
}

.calibration-m6-img {
    flex: 1 1 0;
    min-width: 0;
    max-width: 780px;
}

.calibration-m6-img img {
    display: block;
    width: 100%;
    max-width: 780px;
    height: auto;
    aspect-ratio: 780 / 440;
    object-fit: cover;
}

/* ========== 鍒嗘爮澶栧洿 + 鏆栭€氱被鎸夐挳锛堜笌 calibration-m1 / m4 缁勫悎浣跨敤锛?========== */
.hvac-section {
    padding: 48px 0 40px;
    background: #ffffff;
}

.hvac-section .calibration-m4-inner {
    padding-top: 48px;
}

.hvac-section--alt {
    background: #f8f9fa;
}

.semi-m1-content--rtl {
    flex-direction: row-reverse;
}

/* 保留图文分栏比例，不展示图片（空占位） */
.calibration-m1-content--no-img .calibration-m1-img {
    pointer-events: none;
    visibility: hidden;
}

.hvac-subtitle {
    font-size: 22px;
    font-weight: 600;
    color: #132A3E;
    margin: 24px 0 12px 0;
    line-height: 1.3;
}

.hvac-bullet-lead {
    margin: 0 0 20px 0;
    padding-left: 1.2em;
    list-style-type: disc;
    color: #132A3E;
}

.hvac-bullet-lead li {
    margin: 0 0 10px 0;
    font-size: 18px;
    line-height: 1.65;
}

.hvac-bullet-lead li strong {
    font-weight: 600;
}

/* 鍦嗙偣鍒楄〃锛堝榻?productDetails.htm .pde-benefits锛?*/
.hvac-bullet-dots {
    margin: 0 0 20px 0;
    padding: 0;
    list-style: none;
    color: #132A3E;
}

.hvac-bullet-dots li {
    position: relative;
    margin: 0 0 10px 0;
    padding-left: 16px;
    font-size: 18px;
    line-height: 1.65;
}

.hvac-bullet-dots li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.78em;
    width: 5px;
    height: 5px;
    margin-top: -2px;
    border-radius: 50%;
    background: #333;
}

.hvac-btn-navy {
    display: inline-block;
    margin-top: 8px;
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 500;
    color: #ffffff;
    background-color: #132A3E;
    border: none;
    border-radius: 999px;
    text-decoration: none;
    cursor: pointer;
}

.hvac-btn-navy:hover {
    background-color: #1a3d56;
    color: #ffffff;
}

.calibration-m1-text .hvac-btn-navy {
    margin-top: 16px;
}

.hvac-btn-stack {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

.hvac-btn-stack .hvac-btn-navy {
    margin-top: 0;
}

.hvac-btn-orange {
    display: inline-block;
    margin-top: 16px;
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 500;
    color: #ffffff;
    background-color: #f06431;
    border: none;
    border-radius: 999px;
    text-decoration: none;
    cursor: pointer;
}

.hvac-btn-orange:hover {
    background-color: #d85528;
    color: #ffffff;
}

.hvac-eguide-list {
    margin: 12px 0 8px 0;
    padding-left: 1.15em;
    list-style-type: square;
    color: #132A3E;
}

.hvac-eguide-list li {
    margin: 0 0 8px 0;
    font-size: 17px;
    line-height: 1.55;
}

/* ========== 测量页图文分栏 · 方点列表（*-m1-list，圆点与首行文字垂直居中） ========== */
.co-m1-list,
.dp-m1-list,
.wsav-m1-list,
.mpd-m1-list,
.illum-m1-list,
.flm-m1-list,
.aq-m1-list,
.th-m1-list,
.sf6-m1-list,
.frn-m1-list,
.co2-m1-list,
.dew-m1-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.co-m1-list li,
.dp-m1-list li,
.wsav-m1-list li,
.mpd-m1-list li,
.illum-m1-list li,
.flm-m1-list li,
.aq-m1-list li,
.th-m1-list li,
.sf6-m1-list li,
.frn-m1-list li,
.co2-m1-list li,
.dew-m1-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 16px;
    line-height: 1.75;
    color: #132a3e;
}

.co-m1-list li:last-child,
.dp-m1-list li:last-child,
.wsav-m1-list li:last-child,
.mpd-m1-list li:last-child,
.illum-m1-list li:last-child,
.flm-m1-list li:last-child,
.aq-m1-list li:last-child,
.th-m1-list li:last-child,
.sf6-m1-list li:last-child,
.frn-m1-list li:last-child,
.co2-m1-list li:last-child,
.dew-m1-list li:last-child {
    margin-bottom: 0;
}

.co-m1-list li::before,
.dp-m1-list li::before,
.wsav-m1-list li::before,
.mpd-m1-list li::before,
.illum-m1-list li::before,
.flm-m1-list li::before,
.aq-m1-list li::before,
.th-m1-list li::before,
.sf6-m1-list li::before,
.frn-m1-list li::before,
.co2-m1-list li::before,
.dew-m1-list li::before {
    content: "";
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    margin-top: calc((1.75em - 6px) / 2);
    background: #132a3e;
}

.co-m1-list li strong,
.dp-m1-list li strong,
.wsav-m1-list li strong,
.mpd-m1-list li strong,
.illum-m1-list li strong,
.flm-m1-list li strong,
.aq-m1-list li strong,
.th-m1-list li strong,
.sf6-m1-list li strong,
.frn-m1-list li strong,
.co2-m1-list li strong,
.dew-m1-list li strong {
    font-weight: 600;
    color: #132a3e;
}

/*
 * ========== 公共分栏五档 ==========
 * Phone≤767 | Small 768–1024 | Mid 1025–1439 | Large 1440–1679 | XLarge≥1680（定稿）
 * ≥768：尽量左右；≤767：才单列。文案：max(14px, 定稿 × --kyd-text-scale)
 */

/* —— 文案缩放：≤1679 —— */
@media screen and (max-width: 1679px) {
    .page-banner .o_big_text h1 {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(54px * var(--kyd-text-scale, 1)));
    }
    .page-banner .o_big_text p {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(20px * var(--kyd-text-scale, 1)));
    }
    .calibration-m1-title {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(40px * var(--kyd-text-scale, 1)));
    }
    .calibration-m1-subtitle {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(35px * var(--kyd-text-scale, 1)));
    }
    .calibration-m1-title.calibration-m1-subtitle {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(32px * var(--kyd-text-scale, 1)));
    }
    .calibration-m1-text p,
    .hvac-bullet-lead li,
    .hvac-bullet-dots li {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(18px * var(--kyd-text-scale, 1)));
    }
    .calibration-m4-title,
    .calibration-m5-title,
    .calibration-m6-title,
    .car-split__title {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(42px * var(--kyd-text-scale, 1)));
    }
    .calibration-m4-text p,
    .calibration-m5-text p,
    .calibration-m6-text p,
    .calibration-m6-list,
    .calibration-m6-btn,
    .calibration-m4-btn,
    .calibration-m5-btn,
    .car-split__text p {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(18px * var(--kyd-text-scale, 1)));
    }
    .hvac-btn-navy,
    .hvac-btn-orange {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(16px * var(--kyd-text-scale, 1)));
    }
    .hvac-subtitle {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(22px * var(--kyd-text-scale, 1)));
    }
    .hvac-eguide-list li {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(17px * var(--kyd-text-scale, 1)));
    }
    .co-m1-list li,
    .dp-m1-list li,
    .wsav-m1-list li,
    .mpd-m1-list li,
    .illum-m1-list li,
    .flm-m1-list li,
    .aq-m1-list li,
    .th-m1-list li,
    .sf6-m1-list li,
    .frn-m1-list li,
    .co2-m1-list li,
    .dew-m1-list li {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(16px * var(--kyd-text-scale, 1)));
    }
}

/* —— Large 1440～1679 —— */
@media screen and (min-width: 1440px) and (max-width: 1679px) {
    .calibration-m1-content {
        padding: 44px 36px 0;
    }
    .calibration-m4-inner,
    .calibration-m5-inner,
    .calibration-m6-inner,
    .car-split {
        padding-left: 36px;
        padding-right: 36px;
    }
}

/* —— Mid 1025～1439 —— */
@media screen and (min-width: 1025px) and (max-width: 1439px) {
    .calibration-m1-content {
        padding: 40px 28px 0;
        gap: 40px;
    }
    .calibration-m4-inner,
    .calibration-m5-inner,
    .calibration-m6-inner,
    .car-split {
        padding-left: 28px;
        padding-right: 28px;
        gap: 48px;
    }
}

/* —— Small 768～1024：左右压缩，不单列 —— */
@media screen and (min-width: 768px) and (max-width: 1024px) {
    .page-banner .o_big_text {
        padding-left: 8%;
        padding-right: 8%;
    }
    .calibration-m1-content {
        flex-direction: row;
        align-items: flex-start;
        padding: 32px 20px 0;
        gap: 24px;
    }
    .calibration-m1-content.semi-m1-content--rtl {
        flex-direction: row-reverse;
    }
    .calibration-m4-inner,
    .calibration-m5-inner,
    .calibration-m6-inner,
    .car-split {
        flex-direction: row;
        align-items: flex-start;
        gap: 24px;
        padding-left: 20px;
        padding-right: 20px;
    }
}

/* —— Phone ≤767：单列；一律图上、文下（不跟 DOM / rtl 左右互换） —— */
@media screen and (max-width: 767px) {
    .page-banner .o_big_text {
        padding-left: 10%;
        padding-right: 10%;
        align-items: center;
        text-align: center;
    }
    .page-banner .o_big_text h1,
    .page-banner .o_big_text p {
        text-align: center;
    }

    .calibration-m1-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
        padding: 28px 16px 0;
    }

    .calibration-m1-content.semi-m1-content--rtl {
        flex-direction: column;
    }

    .calibration-m1-content--no-img .calibration-m1-img {
        display: none;
    }

    .calibration-m1-img,
    .calibration-m1-text {
        flex: none;
        width: 100%;
        max-width: none;
        min-width: 0;
    }

    .calibration-m1-img {
        order: 1;
    }

    .calibration-m1-text {
        order: 2;
    }

    .calibration-m1-img img {
        width: 100%;
        height: auto;
    }

    .car-split {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
        padding: 28px 16px;
    }

    .car-split__img,
    .car-split__text {
        flex: none;
        width: 100%;
        max-width: none;
        min-width: 0;
    }

    .car-split__img {
        order: 1;
    }

    .car-split__text {
        order: 2;
    }

    .car-split__img img {
        width: 100%;
        max-width: none;
        height: auto;
        aspect-ratio: 780 / 440;
    }

    .calibration-m4-inner,
    .calibration-m5-inner,
    .calibration-m6-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
        padding-left: 16px;
        padding-right: 16px;
    }

    .calibration-m4-text,
    .calibration-m4-img,
    .calibration-m5-text,
    .calibration-m5-img,
    .calibration-m6-text,
    .calibration-m6-img {
        flex: none;
        width: 100%;
        max-width: none;
        min-width: 0;
    }

    .calibration-m4-img,
    .calibration-m5-img,
    .calibration-m6-img {
        order: 1;
    }

    .calibration-m4-text,
    .calibration-m5-text,
    .calibration-m6-text {
        order: 2;
    }

    .calibration-m4-img img,
    .calibration-m5-img img,
    .calibration-m6-img img {
        width: 100%;
        height: auto;
    }
}