/* Particle Science Detail Page CSS */

/* Content Section */
.particle-content-section {
    position: relative;
    background: #fff;
    padding-top: 100px;
    max-width: 1400px;
    margin: 0 auto;
    min-height: calc(100vh - 980px);
}

.content-wrap {
    position: relative;
    display: flex;
    justify-content: space-between;
    margin-bottom: 50px;
}

.contents-nav {
    width: 385px;
    position: sticky;
    top: 20px;
    align-self: flex-start;
    z-index: 100;
}

.contents-title {
    font-size: 28px;
    font-weight: 700;
    color: #000;
    padding-top: 10px;
    text-transform: uppercase;
}

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

.contents-list li {
    margin-bottom: 10px;
}

.contents-list a {
    font-size: 20px;
    font-weight: 500;
    color: rgba(61, 164, 223, 1);
    text-decoration: none;
    line-height: 1.2;
    transition: color 0.3s ease;
}

.contents-list a:hover {
    color: rgba(61, 164, 223, 0.8);
}

.main-title-section {
    flex: 1;
    margin-left: 50px;
}

.main-title {
    font-size: 46px;
    font-weight: 700;
    color: #000;
    margin: 0 0 12px;
    line-height: 1;
}
.bottom-line {
    margin-bottom: 15px;
    line-height: 1;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.title-divider {
    width: 100%;
    max-width: 369px;
    height: 2px;
    background: url('../design/lanhu_huaban1/img/psyenzpn25062hl4t8u29qxhp5cm2h5a87ac63e96-8946-47f8-b1cb-62cc30bcce5b.png') no-repeat;
    background-size: contain;
    margin-bottom: 11px;
}

.title-note {
    font-size: 24px;
    font-weight: 700;
    color: #000;
    margin-bottom: 20px;
}

/* Intro Section */
.intro-section {
    margin-bottom: 80px;
}

.intro-text {
    margin-bottom: 20px;
}

.intro-source {
    font-size: 16px;
    font-weight: 500;
    color: rgba(103, 103, 103, 1);
    margin: 0 0 10px;
    line-height: 1.5;
}

.intro-note {
    font-size: 16px;
    font-weight: 500;
    color: rgba(129, 129, 129, 1);
    font-style: italic;
    margin: 0;
    line-height: 1.5;
}

.text-link {
    color: rgba(61, 164, 223, 1);
    text-decoration: none;
}

.text-link:hover {
    text-decoration: underline;
}

.intro-content {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-top: 20px;
}

.intro-main-text {
    flex: 1;
    max-width: 678px;
}

.intro-main-text p {
    font-size: 18px;
    font-weight: 500;
    color: rgba(103, 103, 103, 1);
    line-height: 1.5;
    margin: 0 0 20px;
}

.intro-main-text strong {
    color: #000;
    font-weight: 700;
}

.intro-main-text em {
    color: rgba(61, 164, 223, 1);
    font-style: normal;
}

.intro-images {
    width: 321px;
    display: flex;
    flex-direction: column;
    gap: 11px;
}

.intro-image-item {
    display: flex;
    flex-direction: column;
}

.intro-image-item img {
    width: 100%;
    height: auto;
    display: block;
}

.image-caption {
    font-size: 18px;
    font-weight: 500;
    color: rgba(129, 129, 129, 1);
    margin-top: 14px;
    line-height: 1.5;
}

/* Content Sections */
.content-section {
    margin-bottom: 80px;
}

.section-heading {
    font-size: 40px;
    font-weight: 600;
    color: #000;
    margin: 0 0 19px;
    line-height: 1;
}

.section-divider {
    width: 100%;
    max-width: 1107px;
    height: 2px;
    background: url('../design/lanhu_huaban1/img/psyenzpn25062hl4t8u29qxhp5cm2h5a87ac63e96-8946-47f8-b1cb-62cc30bcce5b.png') no-repeat;
    background-size: contain;
    margin-bottom: 28px;
}

.section-content {
    margin-top: 28px;
}

.section-content p {
    font-size: 18px;
    font-weight: 500;
    color: rgba(103, 103, 103, 1);
    line-height: 1.5;
    margin: 0 0 20px;
}

.section-content ul {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}

.section-content ul li {
    font-size: 18px;
    font-weight: 500;
    color: rgba(103, 103, 103, 1);
    line-height: 1.5;
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.section-content ul li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: rgba(103, 103, 103, 1);
}

.section-image {
    width: 100%;
    max-width: 1107px;
    height: auto;
    margin: 0 0 20px;
    display: block;
}

.section-subheading {
    font-size: 18px;
    font-weight: 500;
    font-style: italic;
    color: rgba(103, 103, 103, 1);
    margin: 0 0 20px;
}

/* Formula Container */
.formula-container {
    margin: 20px 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.formula-image {
    max-width: 100%;
    height: auto;
    margin: 0 0 10px;
}

.formula-caption {
    font-size: 18px;
    font-weight: 500;
    color: rgba(103, 103, 103, 1);
    line-height: 1.5;
    margin: 0;
}

.formula-text {
    margin: 20px 0;
}

.formula-text p {
    font-size: 18px;
    font-weight: 500;
    color: rgba(103, 103, 103, 1);
    line-height: 1.5;
    margin: 0 0 20px;
}

/* Subsection */
.subsection-heading {
    font-size: 40px;
    font-weight: 600;
    color: #000;
    margin: 61px 0 19px;
    line-height: 1;
}

.subsection-content {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-top: 29px;
}

.subsection-text {
    flex: 1;
    max-width: 678px;
}

.subsection-image {
    width: 326px;
}

.subsection-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Blue Sky Section */
.blue-sky-content {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-top: 11px;
}

.blue-sky-text {
    flex: 1;
    max-width: 749px;
}

.blue-sky-text ul {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}

.blue-sky-text ul li {
    font-size: 18px;
    font-weight: 500;
    color: rgba(103, 103, 103, 1);
    line-height: 1.5;
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.blue-sky-text ul li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: rgba(103, 103, 103, 1);
}

.blue-sky-image {
    width: 323px;
}

.blue-sky-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Porous Section */
.porous-content {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-top: 38px;
}

.porous-text {
    flex: 1;
    max-width: 678px;
}

.porous-image {
    width: 321px;
}

.porous-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* See Also Section */
.see-also-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.see-also-list li {
    font-size: 18px;
    font-weight: 500;
    color: rgba(103, 103, 103, 1);
    line-height: 1.5;
    margin-bottom: 10px;
}

/* Works Section */
.works-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.works-list li {
    font-size: 18px;
    font-weight: 500;
    color: rgba(103, 103, 103, 1);
    line-height: 1.5;
    margin-bottom: 20px;
}

/* References Section */
.references-list {
    list-style: decimal;
    padding-left: 20px;
    margin: 0;
}

.references-list li {
    font-size: 18px;
    font-weight: 500;
    color: rgba(103, 103, 103, 1);
    line-height: 1.5;
    margin-bottom: 20px;
}

/* External Links Section */
.external-links-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.external-links-list li {
    font-size: 18px;
    font-weight: 500;
    color: rgba(103, 103, 103, 1);
    line-height: 1.5;
    margin-bottom: 10px;
}


/* Responsive Design */
@media (max-width: 1400px) {
    .particle-content-section {
        padding: 80px 40px;
    }

    .content-header {
        flex-direction: column;
    }

    .contents-nav {
        width: 100%;
        margin-bottom: 40px;
    }

    .main-title-section {
        margin-left: 0;
    }

    .intro-content,
    .blue-sky-content,
    .porous-content,
    .subsection-content {
        flex-direction: column;
    }

    .intro-images,
    .blue-sky-image,
    .porous-image,
    .subsection-image {
        width: 100%;
        max-width: 500px;
    }
}

@media (max-width: 768px) {
    .particle-banner .banner-title {
        font-size: 40px;
    }

    .particle-banner .banner-subtitle {
        font-size: 16px;
    }

    .main-title {
        font-size: 32px;
    }

    .section-heading {
        font-size: 28px;
    }

    .particle-content-section {
        padding: 40px 20px;
    }

    .footer-section {
        padding: 40px 20px;
    }

    .footer-links {
        flex-direction: column;
        gap: 30px;
    }
}