:root {
    /* 颜色变量 */
    --primary-color: #ffffff;
    --secondary-color: #999999;
    --accent-color: #FFE100;
    --primary-bg-color: #000000;
    --secondary-bg-color: rgb(23, 23, 23);
    --divider-color: rgb(35, 35, 35);
    
    /* 尺寸变量 */
    --page-v-margin: 0;
    --page-h-margin: 5vw;
    --content-tab: 50px;
    
    /* 字体变量 */
    --t-font: 'Menlo', sans-serif;
    --t1-size: 1.5rem; 
    --t2-size: 1.2rem;

    --b-font: 'Arial', sans-serif;
    --b-size: 1rem;

    --c-font: 'Menlo', sans-serif;
    --c-size: 0.8rem;
}

@font-face {
    font-family: 'menlo';
    src: url('fonts/Menlo-Regular.ttf') format('ttf');
    font-weight: normal;
    font-style: normal;
}

.t1, .t2 {
    font-family: var(--t-font, 'Arial', sans-serif);
}
.t1 {
    font-size: var(--t1-size, 1.5rem);
}
.t2 {
    font-size: var(--t2-size, 1.2rem);
}

html {
    font-size: 16px;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: 'menlo';
}

body::-webkit-scrollbar {
    display: none;            
}

body {
    /* overflow: auto; */
    scrollbar-width: 0; 
    background-color: var(--primary-bg-color);
}

#showWheel {
    width: 100%;
    height: calc(var(--vh, 1vh) * 100 - 125px);
    min-height: calc(var(--vh, 1vh) * (15 + 65));
    background-color: var(--primary-bg-color);
    display: flex;
    flex-direction: column;
}

#topBanner {
    width: 100%;
    height: 90px;
    max-height: calc(var(--vh, 1vh) * 15);
    background-color: var(--primary-bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
}

#topBannerText {
    color: var(--primary-color);
    font-size: min(26px, var(--vh, 1vh) * 15 * (26/90));
    text-align: center;
}

#headerSpacer {
    display: inline-block;
    width: 1px;
}

#ProjectCovers {
    width: 100%;
    /* aspect-ratio: 0.8/1; */
    height: calc(100% - 90px);
    min-height: calc(var(--vh, 1vh) * 65);
    display: flex;
    overflow-x: scroll;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

#ProjectCovers::-webkit-scrollbar {
    display: none;
}

#ProjectCovers {
    overflow-y: hidden;
}

.cover {
    flex: 0 0 100%;
    height: 100%;
    scroll-snap-align: start;
    display: flex;
    justify-content: center;
}

.heroimg {
    width: calc(100% - var(--page-h-margin, 75px) * 2);
    max-width: calc(var(--vh, 1vh) * 65 * 3);
    height: 100%;
    object-fit: cover;
}

/* .cover:nth-child(3) {
    background-color: red;
} */

.cover:nth-child(4) {
    background-color: yellow;
}

/* detailBlock 样式 */
#detailBlock {
    width: 100%;
    background-color: var(--secondary-bg-color);
}

/* detailBanner 样式 */
#detailBanner {
    width: 100%;
    height: 90px;
    max-height: calc(var(--vh, 1vh) * 15);
    background-color: var(--primary-bg-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    border-bottom: 1px solid var(--divider-color);
}

/* detailBanner 内容布局 */
#detailBannerLeft {
    width: 40%;
    height: 100%;
    display: flex;
    justify-content: start;
    align-items: center;
}

#projectInfoLeft {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-left: var(--page-h-margin);
}

#detailBannerMid {
    position: relative;
    text-align: center;
    width: 20%;
    height: 100%;
    justify-content: center;
    align-items: center;
}

#detailBannerRight {
    width: 40%;
    height: 100%;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

#projectTitle {
    color: var(--primary-color);
    font-size: min(22px, var(--vh, 1vh) * 15 * (22/90));
}

#projectSubTitle {
    color: var(--secondary-color);
    font-size: min(15px, var(--vh, 1vh) * 15 * (15/90));
}

#yearText {
    color: var(--secondary-color);
    font-size: min(22px, var(--vh, 1vh) * 15 * (22/90));
    margin-right: var(--page-h-margin);
}

#projectCategory {
    color: var(--secondary-color);
    font-size: min(22px, var(--vh, 1vh) * 15 * (22/90));
    margin-right: var(--page-h-margin);
}

#navDots {
    position: absolute;
    top: 50%;
    left: 50%; 
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
}

#navTag {
    position: absolute;
    top: 100%;
    left: 50%; 
    transform: translate(-50%, -50%);
    width: max-content;
    display: flex;
    align-items: center;
    gap: 10px;
}

#navArrow {
    height: min(15px, var(--vh, 1vh) * 15 * (15/90) * 0.8);
}

#navText {
    color: var(--accent-color);
    font-size: min(15px, var(--vh, 1vh) * 15 * (15/90));
}

/* 导航点样式 */
.navDot {
    color: var(--secondary-color);
    font-size: min(min(24px, var(--vh, 1vh) * 15 * (24/90)), 2.5vw);
    margin: 0 min(min(10px, var(--vh, 1vh) * 15 * ((10)/90)), 1.25vw);
    cursor: pointer;
}

.navDot.active {
    color: var(--primary-color);
}

@media (pointer: fine) {
    .navDot:hover {
        color: var(--accent-color);
    }

    .navDot.active:hover {
        color: magenta;
    }
}

.navDot:active{
    color: cyan;
}

.navDot.active:active{
    color: cyan;
}

#detailContent {
    padding-left: var(--page-h-margin);
    padding-right: var(--page-h-margin);
    padding-top: var(--page-v-margin);
}

.no-wrap {
  white-space: nowrap;
}

.accent {
    color: var(--accent-color);
}

.primary {
    color: var(--primary-color);
}

.second {
    color: var(--secondary-color);
}

.h1-2 {
    color: var(--primary-color);
    font-size: 22px;
}

.c {
    color: var(--primary-color);
    font-size: 18px;
}

.b {
    color: var(--secondary-color);
    line-height: 2;  
    font-size: 16px;
}

@media (max-width: 850px) {
    #topBannerText {
        font-size: 20px;
    }
    
    #projectTitle, #yearText {
        font-size: 16px;
    }

    #projectSubTitle, #projectCategory {
        display: none;
    }

    .navDot {
        font-size: 16px;
        margin: 0 5px;
    }

    .h1-2 {
        font-size: 16px;
    }

    .c {
        font-size: 14px;
    }
    .b {
        line-height: 2;
        font-size: 12px;
    }
}

/* 平滑过渡 navTag 和 navDots 的透明度 */
#navTag { transition: opacity 0.3s ease; }
#navDots { transition: opacity 0.3s ease; }