/* 可持续发展页 · 蓝白风格 */

.sus-page {
    --sus-blue: #044eb5;
    --sus-blue-dark: #033a85;
    --sus-blue-light: #3d8fd9;
    --sus-blue-soft: rgba(4, 78, 181, 0.1);
    --sus-text: #1a1a1a;
    --sus-muted: #5c5c5c;
    --sus-line: #e3eaf3;
    --sus-bg: #f4f8fc;
    --sus-white: #fff;
    --sus-radius: 16px;
    --sus-shadow: 0 16px 48px rgba(4, 78, 181, 0.08);
    --sus-ease: cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--sus-white);
    color: var(--sus-text);
}

.sus-page *, .sus-page *::before, .sus-page *::after { box-sizing: border-box; }

.sus-wrap { width: min(1280px, 92vw); margin: 0 auto; }

.sus-sec { padding: 0 0 56px; }

.sus-sec--pillars {
    padding: clamp(64px, 8vw, 88px) 0 clamp(40px, 5vw, 52px);
    background: var(--sus-white);
}

.sus-sec--pillars .sus-sec-head {
    margin-bottom: clamp(28px, 4vw, 40px);
}

/* ========== 可持续发展管理 · 大模块 ========== */
.sus-mgmt {
    position: relative;
    padding: clamp(88px, 10vw, 120px) 0 clamp(100px, 11vw, 128px);
    overflow: hidden;
}

.sus-mgmt__bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% -10%, rgba(4, 78, 181, 0.12) 0%, transparent 55%),
        linear-gradient(180deg, var(--sus-bg) 0%, #eef4fb 50%, var(--sus-white) 100%);
    pointer-events: none;
}

.sus-mgmt__bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23044eb5' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.6;
}

.sus-mgmt .sus-wrap { position: relative; z-index: 1; }

.sus-mgmt__head {
    margin-bottom: clamp(48px, 6vw, 72px);
    text-align: center;
}

.sus-mgmt__label {
    display: inline-block;
    margin-bottom: 20px;
    padding: 6px 20px;
    font-size: 12px;
    letter-spacing: 0.28em;
    color: var(--sus-blue);
    border: 1px solid rgba(4, 78, 181, 0.2);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(6px);
}

/* 区块标题：与站点 .common_tit 对齐 */
.sus-mgmt__head .common_tit,
.sus-sec-head.common_tit {
    text-align: center;
}

.sus-mgmt__head .common_tit h4,
.sus-sec-head.common_tit h4 {
    margin: 0;
    font-size: 40px;
    font-weight: bold;
    letter-spacing: 2px;
    line-height: 1.35;
    color: #333;
}

.sus-mgmt__head .common_tit h6,
.sus-sec-head.common_tit h6 {
    margin: 16px 0 0;
    font-size: 20px;
    line-height: 32px;
    font-weight: 200;
    color: #333;
}

.sus-mgmt__lead {
    margin: 24px auto 0;
    font-size: clamp(16px, 1.8vw, 19px);
    font-weight: 500;
    line-height: 2;
    letter-spacing: 0.06em;
    color: var(--sus-muted);
    text-align: justify;
    text-indent: 2em;
}

/* 小模块卡片 */
.sus-mgmt__block {
    margin-bottom: clamp(28px, 4vw, 40px);
    padding: clamp(32px, 4vw, 48px);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--sus-line);
    border-radius: calc(var(--sus-radius) + 4px);
    box-shadow: var(--sus-shadow);
    backdrop-filter: blur(8px);
}

.sus-mgmt__block:last-child { margin-bottom: 0; }

.sus-mgmt__block--gov {
    background: linear-gradient(165deg, #fff 0%, #f8fbff 100%);
}

.sus-mgmt__block--idea {
    padding: clamp(24px, 3vw, 36px);
}

.sus-mgmt__block--idea .sus-mgmt__block-head {
    margin-bottom: 20px;
    padding-bottom: 18px;
}

.sus-mgmt__block-head {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: clamp(28px, 3.5vw, 36px);
    padding-bottom: 24px;
    border-bottom: 1px solid var(--sus-line);
}

.sus-mgmt__num {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--sus-blue) 0%, var(--sus-blue-light) 100%);
    box-shadow: 0 8px 24px rgba(4, 78, 181, 0.28);
}

.sus-mgmt__block-title {
    margin: 0 0 6px;
    font-size: clamp(24px, 2.8vw, 32px);
    font-weight: 700;
    color: var(--sus-blue-dark);
    letter-spacing: 0.04em;
}

.sus-mgmt__block-en {
    margin: 0;
    font-size: 14px;
    letter-spacing: 0.14em;
    color: var(--sus-blue-light);
}

.sus-sec-head {
    margin-bottom: clamp(36px, 5vw, 52px);
    text-align: center;
}

.sus-sec-head__sub {
    margin: 20px auto 0;
    max-width: 920px;
    font-size: 16px;
    line-height: 1.9;
    font-weight: 400;
    color: #555;
}

/* 理念 */
.sus-idea__grid {
    display: grid;
    grid-template-columns: 1fr minmax(200px, 280px);
    gap: clamp(20px, 3vw, 32px);
    align-items: start;
}

.sus-idea__main {
    padding: 20px 24px;
    background: var(--sus-bg);
    border: 1px solid var(--sus-line);
    border-radius: var(--sus-radius);
}

.sus-idea__lead {
    margin: 0 0 12px;
    font-size: clamp(16px, 1.7vw, 18px);
    font-weight: 600;
    line-height: 1.85;
    color: var(--sus-blue-dark);
    text-align: justify;
}

.sus-idea__text {
    margin: 0 0 12px;
    font-size: 15px;
    line-height: 1.85;
    color: var(--sus-muted);
    text-align: justify;
}

.sus-idea__text:last-child,
.sus-idea__main p:last-child { margin-bottom: 0; }

.sus-idea__main p {
    margin: 0 0 12px;
    font-size: 15px;
    line-height: 1.85;
    color: var(--sus-muted);
    text-align: justify;
    text-indent:2em;
}

.sus-idea__media {
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.sus-idea__media figcaption {
    margin-top: 10px;
    font-size: 13px;
    line-height: 1.6;
    color: var(--sus-muted);
    text-align: center;
}

/* 图片占位（后端传入 ImgUrl） */
.sus-ph {
    position: relative;
    display: block;
    width: 100%;
    margin: 0;
    overflow: hidden;
    border-radius: var(--sus-radius);
    background: var(--sus-bg);
    border: 1px dashed rgba(4, 78, 181, 0.35);
}

.sus-ph--idea { aspect-ratio: 4 / 3; max-height: 210px; }

.sus-ph__img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sus-ph__img[src=""] { display: none; }

.sus-ph__tip {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 12px;
    font-size: 13px;
    color: var(--sus-muted);
    text-align: center;
    pointer-events: none;
    background: repeating-linear-gradient(-45deg, transparent, transparent 8px, rgba(4, 78, 181, 0.03) 8px, rgba(4, 78, 181, 0.03) 16px);
}

.sus-ph__tip small { font-size: 11px; color: var(--sus-blue-light); }

.sus-ph:has(.sus-ph__img[src]:not([src=""])) .sus-ph__tip { display: none; }

.sus-ph:has(.sus-ph__img[src]:not([src=""])) {
    border-style: solid;
    border-color: var(--sus-line);
    background: var(--sus-white);
}

.sus-ph:has(.sus-ph__img[src]:not([src=""])) .sus-ph__img {
    position: absolute;
    inset: 0;
}

/* 治理架构 · 金字塔 + 职责说明 */
.sus-gov__intro {
    margin: 0 0 clamp(28px, 3.5vw, 36px);
    font-size: clamp(15px, 1.6vw, 17px);
    line-height: 1.95;
    color: var(--sus-muted);
    text-align: justify;
    text-indent:2em;
}

.sus-gov__layout {
    display: grid;
    grid-template-columns: minmax(260px, 320px) 1fr;
    gap: clamp(28px, 4vw, 48px);
    align-items: stretch;
}

.sus-gov__pyramid {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 0;
}

.sus-gov__pyr-tier {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 88px;
    padding: 18px 16px;
    text-align: center;
    border-radius: 8px;
    box-shadow: 0 6px 20px rgba(4, 78, 181, 0.12);
}

.sus-gov__pyr-tier--1 {
    width: 46%;
    color: #fff;
    background: linear-gradient(180deg, #033a85 0%, var(--sus-blue) 100%);
    animation: susPyrGlow 4s ease-in-out infinite;
}

@keyframes susPyrGlow {
    0%, 100% { box-shadow: 0 6px 20px rgba(4, 78, 181, 0.12); }
    50% { box-shadow: 0 10px 32px rgba(4, 78, 181, 0.22); }
}

.sus-gov__pyr-tier--2 {
    width: 72%;
    color: #fff;
    background: linear-gradient(180deg, var(--sus-blue) 0%, var(--sus-blue-light) 100%);
}

.sus-gov__pyr-tier--3 {
    width: 100%;
    color: var(--sus-blue-dark);
    background: linear-gradient(180deg, #e8f2fc 0%, #d4e6f9 100%);
    border: 1px solid rgba(4, 78, 181, 0.15);
    box-shadow: none;
}

.sus-gov__pyr-tag {
    font-size: 12px;
    letter-spacing: 0.14em;
    opacity: 0.9;
}

.sus-gov__pyr-name {
    font-size: clamp(15px, 1.6vw, 17px);
    font-weight: 700;
    line-height: 1.45;
}

.sus-gov__details {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.sus-gov__detail {
    position: relative;
    flex: 1;
    padding: 22px 24px 22px 28px;
    background: var(--sus-white);
    border: 1px solid var(--sus-line);
    border-radius: var(--sus-radius);
    box-shadow: 0 4px 18px rgba(4, 78, 181, 0.05);
}

.sus-gov__detail::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    border-radius: var(--sus-radius) 0 0 var(--sus-radius);
    background: var(--sus-blue);
}

.sus-gov__detail--2::before { background: var(--sus-blue-light); }

.sus-gov__detail--3::before { background: #9ec5ef; }

.sus-gov__detail-title {
    margin: 0 0 12px;
    font-size: 18px;
    font-weight: 700;
    color: var(--sus-blue);
}

.sus-gov__detail-title span {
    display: inline-block;
    margin-right: 8px;
    padding: 2px 10px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--sus-blue);
    vertical-align: middle;
    background: var(--sus-blue-soft);
    border-radius: 999px;
}

.sus-gov__detail-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.sus-gov__detail-list li {
    position: relative;
    padding: 6px 0 6px 16px;
    font-size: 14px;
    line-height: 1.85;
    color: var(--sus-muted);
    text-align: justify;
}

.sus-gov__detail-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.95em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--sus-blue-light);
}

/* E/S/G 三大板块 */
.sus-pillars {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: stretch;
    list-style: none;
    margin: 0;
    padding: 0;
}

.sus-pillar {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--sus-white);
    border: 1px solid var(--sus-line);
    border-radius: var(--sus-radius);
    overflow: hidden;
    box-shadow: 0 8px 28px rgba(4, 78, 181, 0.06);
    transition: transform 0.35s var(--sus-ease), box-shadow 0.35s var(--sus-ease);
}

.sus-pillar:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 36px rgba(4, 78, 181, 0.1);
}

.sus-pillar__head {
    padding: 24px 22px 20px;
    color: #fff;
}

.sus-pillar--env .sus-pillar__head {
    background: linear-gradient(135deg, #0a7a52 0%, #12a06a 100%);
}

.sus-pillar--soc .sus-pillar__head {
    background: linear-gradient(135deg, var(--sus-blue) 0%, #0568d4 100%);
}

.sus-pillar--gov .sus-pillar__head {
    background: linear-gradient(135deg, #1e3a6e 0%, var(--sus-blue-dark) 100%);
}

.sus-pillar__tag {
    display: block;
    margin-bottom: 8px;
    font-size: 12px;
    letter-spacing: 0.16em;
    opacity: 0.88;
}

.sus-pillar__title {
    margin: 0;
    font-size: clamp(18px, 2vw, 22px);
    font-weight: 700;
    line-height: 1.45;
}

.sus-pillar__body {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px 20px 22px;
}

.sus-pillar__gov {
    margin: 0;
    font-size: 14px;
    line-height: 1.85;
    color: var(--sus-muted);
    text-align: justify;
}

.sus-pillar__topics-block {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--sus-line);
}

.sus-pillar__topics-label {
    margin: 0 0 12px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--sus-blue);
}

.sus-pillar__topics {
    flex: 1;
    margin: 0;
    padding: 0;
    list-style: none;
}

.sus-pillar__topics li {
    padding: 10px 0;
    border-bottom: 1px dashed var(--sus-line);
}

.sus-pillar__topics li:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.sus-pillar__topics strong {
    display: block;
    margin-bottom: 4px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.45;
    color: var(--sus-blue-dark);
}

.sus-pillar__topics span {
    display: block;
    font-size: 13px;
    line-height: 1.65;
    color: var(--sus-muted);
}

/* ESG 报告下载 */
.sus-report {
    width: 100vw;
    max-width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    padding: clamp(48px, 6vw, 64px) 0 clamp(56px, 7vw, 80px);
    background: var(--sus-bg);
}

.sus-report .sus-sec-head {
    margin-bottom: clamp(24px, 3.5vw, 32px);
}

.sus-report__card {
    display: grid;
    grid-template-columns: 330px 1fr;
    gap: clamp(28px, 4vw, 48px);
    align-items: center;
    padding: clamp(28px, 4vw, 40px);
    background: var(--sus-white);
    border: 1px solid var(--sus-line);
    border-radius: var(--sus-radius);
    box-shadow: var(--sus-shadow);
}

.sus-report__cover {
    margin: 0;
    width: 100%;
    max-width: 330px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 12px 32px rgba(4, 78, 181, 0.2);
}

.sus-ph--report {
    aspect-ratio: 3 / 4;
    border-radius: 12px;
}

.sus-ph--report .sus-ph__img:not([src=""]) {
    position: absolute;
    inset: 0;
    object-fit: cover;
}

.sus-report__cover:has(.sus-ph__img[src]:not([src=""])) {
    border: 1px solid var(--sus-line);
    background: var(--sus-white);
}

.sus-report__content .sus-report__title {
    margin: 0 0 16px;
    text-align: left;
    font-size: 28px;
    font-weight: bold;
    letter-spacing: 1px;
    line-height: 1.5;
    color: #333;
}

.sus-report__desc {
    margin: 0 0 28px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--sus-muted);
    text-align: justify;
}

.sus-report__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}

.sus-report__btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    text-decoration: none;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--sus-blue) 0%, #0568d4 100%);
    box-shadow: 0 8px 24px rgba(4, 78, 181, 0.28);
    transition: transform 0.35s var(--sus-ease), box-shadow 0.35s var(--sus-ease);
}

.sus-report__btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(4, 78, 181, 0.35);
    color: #fff;
}

.sus-report__btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.sus-report__note {
    font-size: 13px;
    color: var(--sus-muted);
}

/* reveal & 阶梯动画 */
.sus-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s var(--sus-ease), transform 0.7s var(--sus-ease);
}

.sus-reveal.sus-is-visible {
    opacity: 1;
    transform: translateY(0);
}

.sus-animate {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.75s var(--sus-ease), transform 0.75s var(--sus-ease);
}

.sus-mgmt.sus-is-visible .sus-animate {
    opacity: 1;
    transform: translateY(0);
}

.sus-mgmt.sus-is-visible .sus-animate--delay1 { transition-delay: 0.15s; }
.sus-mgmt.sus-is-visible .sus-animate--delay2 { transition-delay: 0.3s; }
.sus-mgmt.sus-is-visible .sus-animate--delay3 { transition-delay: 0.45s; }
.sus-mgmt.sus-is-visible .sus-animate--delay4 { transition-delay: 0.6s; }

.sus-mgmt.sus-is-visible .sus-ph.sus-ph--idea {
    animation: none;
}

@media (max-width: 1024px) {
    .sus-idea__grid,
    .sus-gov__layout,
    .sus-pillars { grid-template-columns: 1fr; }

    .sus-idea__media { max-width: 280px; margin: 0 auto; }

    .sus-ph--idea { max-height: 200px; }

    .sus-gov__pyramid {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
        padding-bottom: 8px;
    }

    .sus-gov__pyr-tier {
        width: auto !important;
        flex: 1 1 160px;
        min-height: 76px;
    }

    .sus-report__card { grid-template-columns: 220px 1fr; }
}

@media (max-width: 768px) {
    .sus-wrap { width: 100%; padding-left: 4vw; padding-right: 4vw; }
    .sus-mgmt { padding: 56px 0 64px; }
    .sus-sec--pillars { padding: 48px 0 32px; }
    .sus-sec { padding-bottom: 32px; }

    .sus-pillars { gap: 16px; }

    .sus-mgmt__block { padding: 24px 18px; }
    .sus-mgmt__block-head { gap: 14px; }
    .sus-mgmt__num { width: 48px; height: 48px; font-size: 18px; }

    .sus-mgmt__head .common_tit h4,
    .sus-sec-head.common_tit h4 {
        font-size: 26px;
        letter-spacing: 1px;
    }

    .sus-mgmt__head .common_tit h6,
    .sus-sec-head.common_tit h6 {
        margin-top: 10px;
        font-size: 16px;
        line-height: 1.5;
    }

    .sus-report { padding: 40px 0 56px; }

    .sus-report__card {
        grid-template-columns: 1fr;
        padding: 24px 20px;
    }

    .sus-report__cover {
        max-width: 220px;
        margin: 0 auto;
    }

    .sus-report__content .sus-report__title { font-size: 20px; }
}

@media (prefers-reduced-motion: reduce) {
    .sus-reveal,
    .sus-animate { opacity: 1; transform: none; transition: none; }
    .sus-gov__pyr-tier--1 { animation: none; }
    .sus-pillar:hover { transform: none; }
}