body,
html {
    position: relative;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    scroll-behavior: smooth;
    --vw-base: calc(100vw / 1920);
    background-color: #66696b;
}

body>* {}

h1,
h2,
h3,
h4,
h5,
h6,
p {
    margin: 0;
    padding: 0;
}

a:link,
a:visited,
a:hover,
a:active {
    text-decoration: none;
}

button,
input,
textarea,
select,
option {
    margin: 0;
    padding: 0;
    -webkit-appearance: none;
    -webkit-border-radius: 0px;
    border-radius: 0;
    -moz-appearance: none;
    appearance: none;
    outline: none;
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.container {
    position: relative;
    width: 100%;
    height: auto;
}

.material_fixed {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    background-image: url(../img/index/bg-Material.jpg);
    background-repeat: repeat;
    background-size: cover;
    background-position: center;
    pointer-events: none;
    mix-blend-mode: multiply;
    z-index: 10;
}

/*main1*/
.main1 {
    position: relative;
    width: 100%;
    /* height: calc(950*var(--vw-base)); */
    overflow: hidden;
    background-image: url(../img/project/bg1.jpg);
    background-repeat: repeat-y;
    background-size: cover;
    background-position: center;
    min-height: 100vh;
}

.title {
    position: absolute;
    left: 0;
    bottom: 0;
    width: calc(595*var(--vw-base));
    height: calc(93*var(--vw-base));
    overflow: hidden;
    /* background-color: #fff; */
}

.title .pic {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.title .pic img {
    object-fit: contain;
}

/* project-list 只先開啟 header 的 slogan marquee */
.project-list-page .header .slog-marquee {
    clip-path: inset(0 0% 0 0);
}

/* project-list 的 m1-menu-box */
.project-list-page .main1 .m1-menu-box {
    --m1-button-width: calc(132 * var(--vw-base));
    --m1-button-height: calc(60 * var(--vw-base));
    width: 32vw;
    position: absolute;
    right: calc(270*var(--vw-base));
    top: calc(100*var(--vw-base));
    left: auto;
    bottom: auto;
    display: flex;
    gap: 1.4vw;
    align-items: center;
    z-index: 12;
}

.project-list-page .main1 .m1-menu-box-btn-wrap {
    position: relative;
    display: inline-block;
    width: var(--m1-button-width);
    height: var(--m1-button-height);
    flex: 0 0 var(--m1-button-width);
    box-sizing: border-box;
    min-width: 0;
    padding: 0;
}

.project-list-page .main1 .m1-menu-box-btn {
    --m1-line: #66696b;
    --m1-wire-height: calc(8 * var(--vw-base));
    --m1-wire-cap: calc(6 * var(--vw-base));
    --m1-wire-radius: 2px;
    --m1-track-width: calc(113 * var(--vw-base));
    --m1-track-height: calc(46 * var(--vw-base));
    --m1-track-radius: calc(23 * var(--vw-base));
    --m1-track-left: calc(var(--m1-button-width) - .8vw - (var(--m1-socket-width) / 2) - var(--m1-track-width) + var(--m1-track-radius));
    --m1-travel-duration: .7s;
    --m1-fill-duration: .1s;
    --m1-motion-ease: cubic-bezier(.4, 0, .2, 1);
    --m1-wire-bottom: calc(.1vw + (var(--m1-socket-height) - var(--m1-wire-height)) / 2);
    --m1-socket-width: calc(20 * var(--vw-base));
    --m1-socket-height: calc(12 * var(--vw-base));
    --m1-socket-radius: calc(4 * var(--vw-base));
    --m1-socket-fill-width: calc(var(--m1-socket-width) * .6);
    --m1-socket-fill-height: calc(var(--m1-socket-height) * .5);
    --m1-socket-hole-stroke: 1px;
    --m1-socket-hole-inner-width: calc(1 * var(--vw-base));
    --m1-socket-hole-width: calc(var(--m1-socket-hole-inner-width) + var(--m1-socket-hole-stroke) + var(--m1-socket-hole-stroke));
    --m1-socket-hole-height: calc(5 * var(--vw-base));
    --m1-socket-hole-gap: calc(4 * var(--vw-base));
    --m1-socket-hole-left: calc((var(--m1-socket-width) - var(--m1-socket-hole-width) - var(--m1-socket-hole-gap) - var(--m1-socket-hole-width)) / 2);
    --m1-socket-hole-second-left: calc(var(--m1-socket-hole-left) + var(--m1-socket-hole-width) + var(--m1-socket-hole-gap));
    --m1-socket-hole-top: calc((var(--m1-socket-height) - var(--m1-socket-hole-height)) / 2);
    --m1-socket-hole-bottom: calc(var(--m1-socket-hole-top) + var(--m1-socket-hole-height) - var(--m1-socket-hole-stroke));
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    border: 0;
    padding: .3vw .8vw 1.1vw;
    color: var(--m1-line);
    background: transparent;
    font-size: calc(20 * var(--vw-base));
    font-family: 'Noto Sans TC', sans-serif;
    letter-spacing: .2em;
    line-height: 1.25;
    text-align: left;
    font-weight: 300;
    cursor: pointer;
    white-space: nowrap;
}

/* 下方尾線：固定保留，不跟著插頭頭部一起縮短 */
.project-list-page .main1 .m1-menu-box-btn::before {
    content: "";
    position: absolute;
    left: calc(var(--m1-track-left) + var(--m1-track-radius));
    right: calc(.8vw + var(--m1-socket-width) + .7vw);
    bottom: calc(var(--m1-wire-bottom) + (var(--m1-wire-height) - 1px) / 2);
    height: 1px;
    border-radius: 1px;
    background: var(--m1-line);
    z-index: 1;
    pointer-events: none;
}

/* 跟著ㄈ一起被畫出的膠囊路徑線 */
.project-list-page .main1 .m1-wire-travel {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    overflow: visible;
    pointer-events: none;
    z-index: 1;
}

.project-list-page .main1 .m1-wire-travel-path {
    fill: none;
    stroke: var(--m1-line);
    stroke-width: 1px;
    stroke-linecap: round;
    stroke-linejoin: round;
    shape-rendering: geometricPrecision;
}

/* 文字置於膠囊路徑中央，避免固定高度後撞到上方線段 */
.project-list-page .main1 .m1-label {
    position: absolute;
    left: var(--m1-track-left);
    top: calc(100% - var(--m1-track-height) - .1vw - var(--m1-socket-height) / 2);
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--m1-track-width);
    height: var(--m1-track-height);
    box-sizing: border-box;
    padding: 0;
    line-height: 1.25;
    white-space: nowrap;
    pointer-events: none;
    z-index: 5;
}

/* ㄈ：從左下起跑，沿著外框順時針繞行 */
.project-list-page .main1 .m1-wire-head {
    position: absolute;
    left: calc(var(--m1-track-left) + var(--m1-track-radius) - var(--m1-wire-cap));
    top: calc(100% - var(--m1-wire-bottom) - var(--m1-wire-height));
    width: var(--m1-wire-cap);
    height: var(--m1-wire-height);
    box-sizing: border-box;
    border-radius: var(--m1-wire-radius);
    background:
        linear-gradient(var(--m1-line), var(--m1-line)) 0 0 / 100% 1px no-repeat,
        linear-gradient(var(--m1-line), var(--m1-line)) 0 100% / 100% 1px no-repeat,
        linear-gradient(var(--m1-line), var(--m1-line)) 100% 0 / 1px 100% no-repeat;
    transform-origin: right center;
    pointer-events: none;
    z-index: 2;
}

/* 外框只在預覽／選取時出現 */
.project-list-page .main1 .m1-menu-box-btn-wrap.active,
.project-list-page .main1 .m1-menu-box-btn-wrap:not(.active):has(.m1-menu-box-btn:hover) {
    border-color: var(--m1-line, #66696b);
}

@keyframes m1WireTravel {
    0% {
        left: calc(.8vw - var(--m1-wire-cap));
        top: calc(100% - var(--m1-wire-bottom) - var(--m1-wire-height));
        transform: rotate(0deg);
    }

    12% {
        left: calc(0px - (var(--m1-wire-cap) / 2));
        top: calc(65% - (var(--m1-wire-height) / 2));
        transform: rotate(90deg);
    }

    25% {
        left: calc(.8vw - (var(--m1-wire-cap) / 2));
        top: calc(0px - (var(--m1-wire-height) / 2));
        transform: rotate(135deg);
    }

    45% {
        left: calc(50% - (var(--m1-wire-cap) / 2));
        top: calc(0px - (var(--m1-wire-height) / 2));
        transform: rotate(180deg);
    }

    65% {
        left: calc(100% - .8vw - (var(--m1-wire-cap) / 2));
        top: calc(0px - (var(--m1-wire-height) / 2));
        transform: rotate(225deg);
    }

    82% {
        left: calc(100% - (var(--m1-wire-cap) / 2));
        top: calc(50% - (var(--m1-wire-height) / 2));
        transform: rotate(270deg);
    }

    90% {
        left: calc(100% - (var(--m1-wire-cap) / 2));
        top: calc(72% - (var(--m1-wire-height) / 2));
        transform: rotate(315deg);
    }

    96% {
        left: calc(100% - .8vw - (var(--m1-wire-cap) / 2));
        top: calc(100% - var(--m1-wire-bottom) - var(--m1-wire-height));
        transform: rotate(345deg);
    }

    98% {
        left: calc(100% - .8vw - (var(--m1-socket-width) / 2) - var(--m1-wire-cap));
        top: calc(100% - var(--m1-wire-bottom) - var(--m1-wire-height));
        transform: rotate(355deg);
    }

    100% {
        left: calc(100% - .8vw - var(--m1-socket-width) - var(--m1-wire-cap));
        top: calc(100% - var(--m1-wire-bottom) - var(--m1-wire-height));
        transform: rotate(360deg);
    }
}

.project-list-page .main1 .m1-menu-box-btn-wrap.active .m1-wire-head,
.project-list-page .main1 .m1-menu-box-btn-wrap:not(.active):has(.m1-menu-box-btn:hover) .m1-wire-head {
    animation: m1WireTravel var(--m1-travel-duration) var(--m1-motion-ease) forwards;
}

/* 右下插座：先固定造型，接線動畫之後再補 */
.project-list-page .main1 .m1-menu-box-btn::after {
    content: "";
    position: absolute;
    right: .8vw;
    bottom: .1vw;
    width: var(--m1-socket-width);
    height: var(--m1-socket-height);
    box-sizing: border-box;
    border: 1px solid var(--m1-line);
    border-radius: var(--m1-socket-radius);
    background:
        linear-gradient(var(--m1-line), var(--m1-line)) var(--m1-socket-hole-left) var(--m1-socket-hole-top) / var(--m1-socket-hole-width) var(--m1-socket-hole-stroke) no-repeat,
        linear-gradient(var(--m1-line), var(--m1-line)) var(--m1-socket-hole-left) var(--m1-socket-hole-bottom) / var(--m1-socket-hole-width) var(--m1-socket-hole-stroke) no-repeat,
        linear-gradient(var(--m1-line), var(--m1-line)) var(--m1-socket-hole-left) var(--m1-socket-hole-top) / var(--m1-socket-hole-stroke) var(--m1-socket-hole-height) no-repeat,
        linear-gradient(var(--m1-line), var(--m1-line)) calc(var(--m1-socket-hole-left) + var(--m1-socket-hole-width) - var(--m1-socket-hole-stroke)) var(--m1-socket-hole-top) / var(--m1-socket-hole-stroke) var(--m1-socket-hole-height) no-repeat,
        linear-gradient(var(--m1-line), var(--m1-line)) var(--m1-socket-hole-second-left) var(--m1-socket-hole-top) / var(--m1-socket-hole-width) var(--m1-socket-hole-stroke) no-repeat,
        linear-gradient(var(--m1-line), var(--m1-line)) var(--m1-socket-hole-second-left) var(--m1-socket-hole-bottom) / var(--m1-socket-hole-width) var(--m1-socket-hole-stroke) no-repeat,
        linear-gradient(var(--m1-line), var(--m1-line)) var(--m1-socket-hole-second-left) var(--m1-socket-hole-top) / var(--m1-socket-hole-stroke) var(--m1-socket-hole-height) no-repeat,
        linear-gradient(var(--m1-line), var(--m1-line)) calc(var(--m1-socket-hole-second-left) + var(--m1-socket-hole-width) - var(--m1-socket-hole-stroke)) var(--m1-socket-hole-top) / var(--m1-socket-hole-stroke) var(--m1-socket-hole-height) no-repeat;
    background-color: transparent;
    /* 孔位尺寸以整個插座外框計算，避免因 1px 邊框而向下偏移 */
    background-origin: border-box;
    z-index: 3;
    pointer-events: none;
}

/* ㄈ 接上後，插座孔與兩孔中間的空隙一起填滿 */
.project-list-page .main1 .m1-menu-box-btn-wrap.active .m1-menu-box-btn::after,
.project-list-page .main1 .m1-menu-box-btn-wrap:not(.active):has(.m1-menu-box-btn:hover) .m1-menu-box-btn::after {
    animation: m1SocketFill var(--m1-fill-duration) var(--m1-motion-ease) var(--m1-travel-duration) both;
}

@keyframes m1SocketFill {
    from {
        background-color: transparent;
    }

    to {
        background-color: var(--m1-line);
    }
}

/* m1 動態：沿尾線水平拉到插座，不顯示文字外框 */
.project-list-page .main1 .m1-menu-box-btn-wrap {
    border: 0;
    border-radius: 0;
}

.project-list-page .main1 .m1-menu-box-btn-wrap.active .m1-wire-head,
.project-list-page .main1 .m1-menu-box-btn-wrap:not(.active):has(.m1-menu-box-btn:hover) .m1-wire-head {
    animation: m1WireTravelLinear var(--m1-travel-duration) var(--m1-motion-ease) forwards;
}

@keyframes m1WireTravelLinear {
    0% {
        left: calc(.8vw - var(--m1-wire-cap));
        top: calc(100% - var(--m1-wire-bottom) - var(--m1-wire-height));
        transform: rotate(0deg);
        opacity: 1;
    }

    85% {
        left: calc(100% - .8vw - var(--m1-socket-width) - var(--m1-wire-cap));
        top: calc(100% - var(--m1-wire-bottom) - var(--m1-wire-height));
        transform: rotate(306deg);
        opacity: 1;
    }

    100% {
        left: calc(100% - .8vw - var(--m1-socket-width) - var(--m1-wire-cap));
        top: calc(100% - var(--m1-wire-bottom) - var(--m1-wire-height));
        transform: rotate(360deg);
        opacity: 0;
    }
}

/* 只在插座孔位附近填入約 50% 的體積 */
.project-list-page .main1 .m1-socket-fill {
    position: absolute;
    right: calc(.8vw + (var(--m1-socket-width) - var(--m1-socket-fill-width)) / 2);
    bottom: calc(.1vw + (var(--m1-socket-height) - var(--m1-socket-fill-height)) / 2);
    width: var(--m1-socket-fill-width);
    height: var(--m1-socket-fill-height);
    border-radius: 1px;
    background: var(--m1-line);
    opacity: 0;
    pointer-events: none;
    z-index: 4;
}

/* 舊版整個插座填滿動畫停用，改由局部填充元素接手 */
.project-list-page .main1 .m1-menu-box-btn-wrap.active .m1-menu-box-btn::after,
.project-list-page .main1 .m1-menu-box-btn-wrap:not(.active):has(.m1-menu-box-btn:hover) .m1-menu-box-btn::after {
    animation: none;
}

.project-list-page .main1 .m1-menu-box-btn-wrap.active .m1-socket-fill,
.project-list-page .main1 .m1-menu-box-btn-wrap:not(.active):has(.m1-menu-box-btn:hover) .m1-socket-fill {
    animation: m1SocketPartialFill var(--m1-fill-duration) var(--m1-motion-ease) var(--m1-travel-duration) both;
}

@keyframes m1SocketPartialFill {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* 動畫改由 project-list.html 的膠囊路徑控制 */
.project-list-page .main1 .m1-menu-box-btn-wrap .m1-wire-head,
.project-list-page .main1 .m1-menu-box-btn-wrap .m1-socket-fill {
    animation: none !important;
}

.project-list-page .main1 .m1-menu-box-btn:hover,
.project-list-page .main1 .m1-menu-box-btn.active {
    color: #f16d25;
}

.project-list-page .main1 .m1-menu-box.is-transitioning .m1-menu-box-btn {
    pointer-events: none;
    cursor: wait;
}

/* project showcase：固定背景，只處理卡片展開與資訊顯示 */
.project-list-page {
    overflow: hidden;
}

.project-list-page .main1 {
    min-height: 100vh;
}

.project-list-page .title {
    z-index: 2;
    opacity: 0;
    will-change: transform, opacity;
}

.project-list-page .showcase {
    position: absolute;
    inset: 0;
    z-index: 4;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    pointer-events: none;
}

.project-list-page .showcase-track {
    display: flex;
    align-items: center;
    gap: 1.2vw;
    opacity: 0;
    will-change: transform;
    pointer-events: auto;
}

.project-list-page .showcase-item {
    width: calc(114 * var(--vw-base));
    height: calc(427 * var(--vw-base));
    position: relative;
    flex-shrink: 0;
    overflow: hidden;
    background: #111;
    filter: grayscale(1) brightness(.45);
    cursor: pointer;
    transform-origin: center center;
    will-change: transform, width, height;
    transition: filter .3s linear, box-shadow .3s linear;
}

.project-list-page .showcase-item.is-expanded {
    width: calc(793.7778 * var(--vw-base));
    height: calc(446 * var(--vw-base));
    aspect-ratio: 16 / 9;
    background: #111;
    box-shadow: 0 calc(12 * var(--vw-base)) calc(30 * var(--vw-base)) rgba(0, 0, 0, .28);
}

.project-list-page .showcase-item.is-side-expanded {
    width: calc(657.7778 * var(--vw-base));
    height: calc(370 * var(--vw-base));
    aspect-ratio: 16 / 9;
}

.project-list-page .showcase-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    position: relative;
    z-index: 1;
}

.project-list-page .showcase-item::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 2;
    background: rgba(128, 128, 128, .1);
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s linear;
}

.project-list-page .showcase-item.is-dimmed::after {
    opacity: 1;
}

.project-list-page .showcase-item:not(.is-dimmed):hover {
    filter: grayscale(0) brightness(1) !important;
}

/* 初始 list 左側的滾動提示，開始滾動或展開作品後淡出 */
.project-list-page .list-scroll-prompt {
    position: absolute;
    z-index: 7;
    display: flex;
    align-items: flex-end;
    gap: calc(8 * var(--vw-base));
    color: #8c8c8c;
    font-family: "Raleway", sans-serif;
    font-size: calc(12 * var(--vw-base));
    font-weight: 300;
    letter-spacing: 0.15vw;
    line-height: 1;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity .45s ease;
}

.project-list-page .list-scroll-prompt.is-hidden {
    opacity: 0;
}

.project-list-page .list-scroll-dot {
    width: calc(10 * var(--vw-base));
    height: calc(10 * var(--vw-base));
    flex: 0 0 auto;
    border: 1px solid currentColor;
    border-radius: 50%;
}

.project-list-page .focus-overlay {
    position: absolute;
    inset: 0;
    z-index: 5;
    background: transparent;
    opacity: 0;
    pointer-events: none;
}

.project-list-page .focus-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* 展開後的中文名稱固定在頁面右下角 */
.project-list-page .showcase-info {
    position: absolute;
    right: 10px;
    bottom: 10px;
    z-index: 8;
    max-width: 48vw;
    opacity: 0;
    pointer-events: none;
    text-align: right;
    will-change: opacity;
}

.project-list-page .info-title {
    margin: 0;
    color: #fff;
    font-family: "Noto Sans TC", "Noto Sans JP", sans-serif;
    font-size: calc(86*var(--vw-base));
    font-weight: 400;
    letter-spacing: 0.05em;
    line-height: 1.1em;
    white-space: nowrap;
}

/* 展開圖下方：+ 換行後顯示 EXPLORE */
.project-list-page .showcase-explore {
    position: absolute;
    left: 50%;
    top: 53%;
    z-index: 8;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: calc(10*var(--vw-base));
    color: #fff;
    text-decoration: none;
    transform: translateX(-50%);
    opacity: 0;
    pointer-events: none;
    text-align: center;
}

.project-list-page .showcase-explore .explore-plus {
    font-size: calc(36*var(--vw-base));
    font-weight: 200;
    line-height: .8;
}

.project-list-page .showcase-explore .explore-label {
    /* padding-bottom: 0rem; */
    padding: 0 0.5rem;
    border-bottom: 1px solid currentColor;
    font-family: "raleway";
    font-weight: 400;
    color: inherit;
    font-size: calc(27*var(--vw-base));
    letter-spacing: 0.05em;
    line-height: 1.15em;
}

/* 底部置中的作品進度線，開啟中的 case 會變長 */
.project-list-page .showcase-pagination {
    position: absolute;
    left: 50%;
    bottom: calc(15 * var(--vw-base));
    z-index: 8;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: calc(10 * var(--vw-base));
    transform: translateX(-50%);
    opacity: 0;
    will-change: opacity;
    pointer-events: none;
}

.project-list-page .showcase-pagination-line {
    display: block;
    width: calc(3 * var(--vw-base));
    height: calc(22 * var(--vw-base));
    background: #fff;
    opacity: .9;
    transition: height .35s ease, opacity .35s ease;
}

.project-list-page .showcase-pagination-line.is-current {
    height: calc(31 * var(--vw-base));
    opacity: 1;
}