@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400..900&family=Lora:ital,wght@0,400..700;1,400..700&family=Noto+Sans+JP:wght@100..900&family=Noto+Serif+TC:wght@200..900&family=Noto+Serif:ital,wght@0,100..900;1,100..900&family=Raleway:ital,wght@0,100..900;1,100..900&display=swap');
/*.lora-<uniquifier> {
  font-family: "Lora", serif;
  font-optical-sizing: auto;
  font-weight: <weight>;
  font-style: normal;
}*/

/*
Bickham Script Pro 3 Regular
font-family: "bickham-script-pro-3", sans-serif;
font-weight: 400;
font-style: normal;
Bickham Script Pro 3 Bold
font-family: "bickham-script-pro-3", sans-serif;
font-weight: 700;
font-style: normal;
*/
.Bickham-Script-Pro-3-Regular {
    font-family: "bickham-script-pro-3", sans-serif;
    font-weight: 400;
    font-style: normal;
}

.lora-Regular {
    font-family: "Lora", serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
}

.lora-Bold {
    font-family: "Lora", serif;
    font-optical-sizing: auto;
    font-weight: 700;
    font-style: normal;
}

body,
html {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    position: relative;
    width: 100%;
    height: auto;
    min-height: 100%;
    margin: 0;
    padding: 0;
    /*     scroll-behavior: smooth; */
    --vw-base: calc(100vw / 1920);
    background-color: #f3eee7;
    /*     cursor: none; */
}

h1,
h2,
h3,
h4,
h5,
h6 {
    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;
}

video {
    object-fit: cover;
    width: 100%;
    height: 100%;
    position: relative;
    display: block;
}


.container {
    width: 100%;
    height: auto;
    position: relative;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease;
}

.no-scroll {
    overflow: hidden;
    /* 禁止滚动条 */
    touch-action: none;
    /* 禁止移动端触摸滚动 */
    position: fixed;
    /* 防止页面跳动 */
    width: 100%;
    height: 100vh;
}

.opacity {
    opacity: 1;
    position: relative;
    visibility: visible;
}

/*影片區*/
.main1 {
    width: 100%;
    height: calc(950 * var(--vw-base));
    position: relative;
    background-color: #f3eee7;
    /* 確保超出容器的部分被隱藏，達成裁切感 */
    overflow: hidden;
}

/* 這裡維持你的動畫觸發 */
.main1.active {
    animation: m1-bg-motion 1.5s forwards;
    /* 移除 alternate 避免來回彈跳，除非你原本就需要 */
    animation-delay: 0s;
    animation-timing-function: ease-out;
}

.m1-bg {
    width: 100%;
    /* 初始高度與容器一致 */
    height: calc(950 * var(--vw-base));
    position: relative;
    margin: 0 auto;
    z-index: 98;
    overflow: hidden;
    /* 重要：裁切關鍵 */
}

/* 動畫改為縮減容器高度 */
@keyframes m1-bg-motion {
    0% {
        height: calc(950 * var(--vw-base));
    }

    100% {
        height: calc(760 * var(--vw-base));
    }
}

.m1-bg img {
    object-fit: cover;
    width: 100%;
    /* 關鍵：高度固定為原始高度，不要隨父層縮放 */
    height: calc(950 * var(--vw-base));
    position: absolute;
    top: 0;
    left: 0;
    display: block;
}


.m1-txt {
    width: 100%;
    height: calc(520*var(--vw-base));
    position: absolute;
    bottom: 0;
    left: 0;
    z-index: 105;
    overflow: hidden;
}

.m1-t1 {
    color: rgba(255, 255, 255, 0.2);
    font-family: "Lora", serif;
    font-weight: 600;
    font-size: calc(48 * var(--vw-base));
    line-height: 3vw;
    letter-spacing: 0em;
    transform: scaleX(0.95);
    transform-origin: left center;
    writing-mode: vertical-rl;
    display: block;
    position: absolute;
    left: 12.6vw;
    top: 0.4vw;
    width: calc(50 * var(--vw-base));
    height: calc(260 * var(--vw-base));
    overflow: hidden;
    opacity: 0;
    letter-spacing: 0.1vw;
}

.m1-t2 {
    color: rgba(255, 255, 255, 0.6);
    line-height: 3vw;
    font-size: calc(22 * var(--vw-base));
    font-family: 'Noto Serif TC', sans-serif;
    letter-spacing: 0.05em;
    font-weight: 600;
    transform: scaleX(0.95);
    transform-origin: left center;
    display: block;
    position: absolute;
    left: 12.75vw;
    top: 10.3vw;
    width: calc(120 * var(--vw-base));
    height: calc(50 * var(--vw-base));
    overflow: hidden;
    opacity: 0;
}

.m1-t1.active {
    animation: m1-t1-ani 1.5s ease;
    animation-delay: 1s;
    animation-fill-mode: forwards;
}

.m1-t2.active {
    animation: m1-t2-ani 1.5s ease;
    animation-delay: 1s;
    animation-fill-mode: forwards;
}

@keyframes m1-t1-ani {
    0% {
        left: 11.65vw;
        transform: scaleX(0.95);
        opacity: 0;
    }

    100% {
        left: 12.65vw;
        transform: scaleX(0.95);
        opacity: 1;
    }
}

@keyframes m1-t2-ani {
    0% {
        left: 13.75vw;
        transform: scaleX(0.95);
        opacity: 0;
    }

    100% {
        left: 12.75vw;
        transform: scaleX(0.95);
        opacity: 1;
    }
}

.m1-line {
    width: 1px;
    height: calc(0*var(--vw-base));
    background-color: rgba(255, 255, 255, .35);
    position: absolute;
    left: 12.7vw;
    top: 0.4vw;
    overflow: hidden;
    /* 🔴 很重要，避免 after 超出 */
}

.m1-line.active {
    animation: m1-line 1.5s linear;
    animation-delay: 2s;
    animation-fill-mode: forwards;
}

@keyframes m1-line {
    0% {
        height: calc(0*var(--vw-base));
    }

    100% {
        height: calc(665*var(--vw-base));
    }
}

.m1-line::after {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 1);

    transform-origin: top;
    transform: scaleY(0);
}

@keyframes drawLine {
    0% {
        transform: scaleY(0);
        opacity: 1;
    }

    70% {
        transform: scaleY(1);
        opacity: 1;
    }

    100% {
        transform: scaleY(1);
        opacity: 0;
        /* 畫完淡出再重來 */
    }
}

.m1-line.active::after {
    animation: drawLine 3s ease-in-out infinite;
    animation-delay: 3s;

}


/*main2*/
#main2 {
    width: 100%;
    height: calc(950 * var(--vw-base));
    position: relative;
    overflow: hidden !important;
    background-color: #f3eee7;
}

.m2-line1 {
    width: 1px;
    height: calc(0*var(--vw-base));
    background-color: rgba(137, 126, 121, 0.5);
    position: absolute;
    left: 12.7vw;
    top: 0vw;
    overflow: hidden;
    /* 🔴 很重要，避免 after 超出 */
    z-index: 10;
}

.m2-line1.active {
    animation: m2-1-line 1s linear;
    animation-delay: 0s;
    animation-fill-mode: forwards;
}

.m2-line2 {
    width: 1px;
    height: calc(0*var(--vw-base));
    background-color: rgba(137, 126, 121, 0.5);
    position: absolute;
    left: 69vw;
    bottom: 0vw;
    overflow: hidden;
    /* 🔴 很重要，避免 after 超出 */
    z-index: 10;
}

.m2-line2.active {
    animation: m2-2-line 1s linear;
    animation-delay: 0.5s;
    animation-fill-mode: forwards;
}

.m2-line3 {
    width: 1px;
    height: calc(0*var(--vw-base));
    background-color: rgba(137, 126, 121, 0.5);
    position: absolute;
    left: 86.5vw;
    top: 0vw;
    overflow: hidden;
    /* 🔴 很重要，避免 after 超出 */
    z-index: 5;
}

.m2-line3.active {
    animation: m2-3-line 1s linear;
    animation-delay: 1s;
    animation-fill-mode: forwards;
}

@keyframes m2-1-line {
    from {
        height: 0
    }

    to {
        height: calc(950*var(--vw-base));
    }
}

@keyframes m2-2-line {
    from {
        height: 0
    }

    to {
        height: calc(950*var(--vw-base));
    }
}

@keyframes m2-3-line {
    from {
        height: 0
    }

    to {
        height: calc(950*var(--vw-base));
    }
}

.m2-txt {
    position: absolute;
    top: 21.5vw;
    left: 15.5vw;
    width: 70vw;
    z-index: 10;
}

.m2-txt-title {
    width: calc(700*var(--vw-base));
    overflow: hidden;
    color: #756b66;
    font-size: calc(22 * var(--vw-base));
    line-height: calc(30 * var(--vw-base));
    font-weight: 700;
    font-family: 'Noto Serif TC', sans-serif;
    letter-spacing: 0.1em;
    transform: scaleX(0.95);
    transform-origin: left center;
    display: block;
}

.m2-txt-stitle {
    width: calc(700*var(--vw-base));
    overflow: hidden;
    color: #756b66;
    font-size: calc(18 * var(--vw-base));
    line-height: calc(30 * var(--vw-base));
    font-weight: 700;
    font-family: 'Noto Serif TC', sans-serif;
    letter-spacing: 0.1em;
    margin-bottom: 1vw;
}

.m2-txt-cent {
    width: calc(350*var(--vw-base));
    overflow: hidden;
    color: #756b66;
    font-size: calc(16 * var(--vw-base));
    line-height: calc(33 * var(--vw-base));
    font-family: 'Noto Serif TC', sans-serif;
    letter-spacing: 0.05em;
    text-align: justify;
    text-align-last: left;
    text-justify: inter-ideograph;
}






:root {
    --vw-base: calc(100vw / 1920);
    --page-height: calc(950 * var(--vw-base));
    --bg-color: #f2ede4;
    --text-color: #756b66;
    --accent-color: #756b66;
    --highlight-color: #c5a583;
}

/*main2圓形*/
#hero-section {
    width: 100%;
    height: calc(950 * var(--vw-base));
    position: absolute;
    left: 45.5vw;
    top: 8.5vw;
    z-index: 99;
}

#interaction-container {
    position: relative;
    width: calc(700 * var(--vw-base));
    aspect-ratio: 1 / 1;
}

/* 中心圖片 */
#center-image-wrapper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: calc(450 * var(--vw-base));
    height: calc(450 * var(--vw-base));
    clip-path: circle(50%);
    z-index: 100;
    background: #f3eee7;
}

#center-image-wrapper img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.6s ease;
}

#center-image-wrapper img.active {
    opacity: 1;
}

#mainSvg {
    width: 100%;
    height: 100%;
    overflow: visible;
    position: relative;
    z-index: 100;
    pointer-events: none;
}

/* 核心修改：設定 fill-rule 為 evenodd 達成挖空效果 */
#dynamic-hill {
    fill: var(--accent-color);
    fill-opacity: 1;
    /* 凸出部分的顏色深度 */
    stroke: var(--accent-color);
    stroke-width: 0.5;
    fill-rule: evenodd;
    pointer-events: none;
}

.labels-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 20;
}

.nav-label {
    position: absolute;
    white-space: nowrap;
    transform: translate(-50%, -50%);
    /* 這裡不需要 padding，定位交給 transform */
}


/* 確保標籤容器在最上層，不然會被 SVG 遮住點不到 */
.labels-wrapper {
    z-index: 50 !important;
    pointer-events: none;
    /* 讓容器不擋住滑鼠，只讓裡面的標籤擋 */
}

.nav-label {
    position: absolute;
    transform: translate(-50%, -50%);
    pointer-events: auto;
    /* 恢復標籤的感應 */
    z-index: 91;
}

.nav-label a {
    position: relative;
    /* 讓偽元素相對於 a 定位 */
    display: inline-block;
    text-decoration: none;
    color: var(--text-color);
    line-height: 2vw;
    font-size: calc(22 * var(--vw-base));
    font-family: 'Noto Serif TC', sans-serif;
    letter-spacing: 0.05em;
    font-weight: 800;
    transition: color 0.5s ease;
    z-index: 1;
    padding: 5vw;
    cursor: pointer;
    /*background-color: red;*/
}

/* 建立隱形感應區 */
.nav-label a::before {
    content: "";
    position: absolute;
    /* 核心：利用負值向外推，不論文字長短，感應區都會均勻向外擴張 */
    top: -2vw;
    /* 向上擴張 2vw */
    bottom: -2vw;
    /* 向下擴張 2vw */
    left: -3vw;
    /* 向左擴張 3vw */
    right: -3vw;
    /* 向右擴張 3vw */

    background: transparent;
    /* 隱形 */
    z-index: -1;
    /* 放在文字下方，確保不遮擋文字選取 */

    /* 調試用：開發時可以把下面這行打開，就能看到感應區長怎樣 */
    /* background: rgba(0, 255, 0, 0.1); border-radius: 50px; */
}

.nav-label a:hover {
    color: var(--highlight-color);

}

/* 針對流動線條的樣式 */
.st-flow {
    fill: none;
    /* 關鍵：去掉黑色實心 */
    stroke: #756b66;
    /* 設定線條顏色 (可根據你的設計調整) */
    stroke-width: 1;
    /* 線條粗細 */
    stroke-linecap: round;
}

/* 針對繪製中的路徑，也要確保無填滿 */
.draw-path {
    fill: none !important;
}

/* 隱藏 textPath 用的參考路徑 */
#textPath4 {
    fill: none;
}

/* 只負責視覺比例 */
.m4-scale {
    display: inline-block;
    transform: scaleX(0.95);
    transform-origin: left center;
}

#dynamic-hill {
    fill: rgb(117, 107, 102);
    /* 如果你只要線條，這裡維持 none */
    stroke: #756b66;
    /* 線條顏色 */
    stroke-width: 0px;
    /* <--- 修改這裡的數值來調整粗細 */
}

.center-text-box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 100;
    pointer-events: none;
    font-family: "Lora", serif;
    font-weight: 400;
    font-size: calc(48 * var(--vw-base));
    line-height: 3vw;
    width: 100%;
    white-space: nowrap;
}

/* 第一層：正常的底色層 */
.base-text {
    color: rgba(255, 255, 255);
    z-index: 101;
    opacity: 0.8;
    /* 這裡不用設 isolation，確保它乾乾淨淨 */
}



/* --- Flow 區塊 --- */
.section-wrapper {
    position: relative;
    height: var(--page-height);
    width: 100%;
    background: #f3eee7;
    color: #756b66;
}

.sticky-box {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 calc(100 * var(--vw-base));
    box-sizing: border-box;
}

.info-panel {
    width: 40%;
}

.svg-container {
    width: 60%;
    display: flex;
    justify-content: center;
}

.scroll-svg {
    width: calc(550 * var(--vw-base));
    overflow: visible;
}

.path-bg {
    fill: none;
    stroke: #756b66;
    stroke-width: 2;
}

.path-draw {
    fill: none;
    stroke: #756b66;
    stroke-width: calc(1 * var(--vw-base));
    stroke-linecap: round;
}

.text-style {
    fill: #00f2ff;
    font-size: calc(22 * var(--vw-base));
    font-weight: bold;
}

.nav-dots {
    position: fixed;
    right: calc(30 * var(--vw-base));
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: calc(20 * var(--vw-base));
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: 0.6s;
}

.nav-dots.visible {
    opacity: 1;
    pointer-events: auto;
}

.dot {
    width: calc(12 * var(--vw-base));
    height: calc(12 * var(--vw-base));
    border: 1px solid #756b66;
    border-radius: 50%;
    cursor: pointer;
    transition: 0.3s;
}

.dot.active {
    background: #756b66;
    transform: scale(1);
}

.main-flow-section {
    position: relative;
    width: 100%;
    height: calc(950 * var(--vw-base));
    background-color: #f3eee7;
    overflow: hidden;
}

.m-line1 {
    width: 1px;
    height: calc(950*var(--vw-base));
    background-color: rgba(137, 126, 121, 0.5);
    position: absolute;
    left: 12.7vw;
    top: 0vw;
    overflow: hidden;
    /* 🔴 很重要，避免 after 超出 */
    z-index: 10;
}

.m-line1.active {
    animation: m-1-line 1s linear;
    animation-delay: 0s;
    animation-fill-mode: forwards;
}

.m-line2 {
    width: 1px;
    height: calc(950*var(--vw-base));
    background-color: rgba(137, 126, 121, 0.5);
    position: absolute;
    left: 69vw;
    bottom: 0vw;
    overflow: hidden;
    /* 🔴 很重要，避免 after 超出 */
    z-index: 10;
}

.m-line2.active {
    animation: m-2-line 1s linear;
    animation-delay: 0.5s;
    animation-fill-mode: forwards;
}

.m-line3 {
    width: 1px;
    height: calc(950*var(--vw-base));
    background-color: rgba(137, 126, 121, 0.5);
    position: absolute;
    left: 86.5vw;
    top: 0vw;
    overflow: hidden;
    /* 🔴 很重要，避免 after 超出 */
    z-index: 5;
}

.m-line3.active {
    animation: m-3-line 1s linear;
    animation-delay: 1s;
    animation-fill-mode: forwards;
}

.m-line4 {
    width: 100%;
    height: 1px;
    background-color: rgba(137, 126, 121, 0.5);
    position: absolute;
    left: 0vw;
    top: 0vw;
    overflow: hidden;
    /* 🔴 很重要，避免 after 超出 */
    z-index: 5;
}

.m-line4.active {
    animation: m-4-line 1s linear;
    animation-delay: 1s;
    animation-fill-mode: forwards;
}

@keyframes m-1-line {
    from {
        height: 0
    }

    to {
        height: calc(950*var(--vw-base));
    }
}

@keyframes m-2-line {
    from {
        height: 0
    }

    to {
        height: calc(950*var(--vw-base));
    }
}

@keyframes m-3-line {
    from {
        height: 0
    }

    to {
        height: calc(950*var(--vw-base));
    }
}

@keyframes m-4-line {
    from {
        width: 0
    }

    to {
        width: 100%;
    }
}


.flow-svg-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    /* 確保不影響鼠標交互 */
}

.flow-svg-bg svg {
    width: 100%;
    height: 100%;
    display: block;
}


/*  (FLOW 01)  */
#block-0 .flow-svg-bg {
    position: absolute;
    left: 0.25vw;
    transform: translateX(0) !important;
    width: 100%;
    /*transform: translateX(calc(69vw - 1320px))!important; */
    pointer-events: none;
    z-index: 1;
}

/*  (FLOW 02)  */
#block-1 .flow-svg-bg {
    position: absolute;
    width: 100%;
    left: 0.25vw;
    transform: translateX(0) !important;
    pointer-events: none;
    z-index: 1;
}

/*  (FLOW 03)  */
#block-2 .flow-svg-bg {
    position: absolute;
    left: 0.25vw;
    width: 100%;
    transform: translateX(0) !important;
    pointer-events: none;
    z-index: 1;
}

/*  (FLOW 04)  */
#block-3 .flow-svg-bg {
    position: absolute;
    left: -1.25vw;
    width: 101%;
    transform: translateX(0) !important;
    pointer-events: none;
    z-index: 1;
}

/*  (FLOW 05)  */
#block-4 .flow-svg-bg {
    position: absolute;
    left: -0.444444444vw;
    width: 100%;
    transform: translateX(0) !important;
    pointer-events: none;
    z-index: 1;
}

/*  (FLOW 06)  */
#block-5 .flow-svg-bg {
    position: absolute;
    top: -0vw;
    left: -1.9vw;
    width: 102.65vw;
    height: 48.85vw;
    transform: translateX(0) !important;
    z-index: 1;
}

/*  (FLOW 07)  */
#block-6 .flow-svg-bg {
    CORNER-SHAPE: SUPERELLIPSE(0.5);
    position: absolute;
    top: -0.4vw;
    left: -0.95vw;
    width: 100.65vw;
    height: 50vw;
    transform: translateX(0) !important;
    z-index: 1;
}

/* (FLOW 08)*/
#block-7 .flow-svg-bg {
    position: absolute;
    top: -2px;
    left: 0;
    width: 100%;
    transform: translateX(0) !important;
    z-index: 1;
}


.m2-line1 {
    z-index: 10;
}

#hero-section {
    z-index: 99;
}

#mainSvg {
    z-index: 100;
    pointer-events: none;
}

#labels-container {
    pointer-events: none;
}

.flow-label {
    font-size: 1.1rem;
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
}


.tp-node {
    text-anchor: end;
    /* 讓文字的結尾對齊 Offset 點 */
}

/* 頂層文字：不帶描邊，保證絕對清晰 */
.flow-path-text {
    fill: #756b66;
    stroke: none !important;
    font-family: "Lora", serif;
    /*font-size: calc(22 * var(--vw-base));*/
    font-size: 24px;
    text-transform: uppercase;
    dominant-baseline: alphabetic;
    /* 必須設定為 alphabetic 配合 dy 使用 */
    pointer-events: none;
}

/* 底層背景：只負責產生底部的色塊保護區 */
.flow-path-text-bg {
    fill: none;
    stroke: #f3eee7;
    /* 背景色塊顏色 */
    stroke-width: 55px;
    /* 寬度稍微大一點，確保能擋住背景線 */
    stroke-linejoin: round;
    stroke-linecap: round;
    dominant-baseline: alphabetic;
    pointer-events: none;
}

.flow-path-text,
.flow-path-text-bg {
    transform-box: fill-box;
    /* 🔑 讓 transform 以文字本身為基準 */
}

/* 將圓圈旋轉，並翻轉讓它逆時針畫 */
circle {
    transform-origin: center;
    transform: rotate(-90deg) scaleY(-1);
}




/* 右側常駐導覽點 - 修正版 */
.nav-dots {
    position: fixed;
    right: 1.5vw;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999999 !important;
    pointer-events: auto !important;
    opacity: 0;
    visibility: hidden;
    transition: all 0.8s ease;
}

/* 當 JS 觸發顯示時 */
.nav-dots.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto !important;
}

/* 確保個別點點是可以被點擊的 */
.dot {
    width: calc(8*var(--vw-base));
    height: 0.1px;
    background-color: #756b66;
    border-radius: 0%;
    cursor: pointer !important;
    /* 確保滑鼠移上去有手指 */
    position: relative;
    transition: all 0.5s ease;
    pointer-events: auto !important;
}

.dot.active {
    width: calc(8*var(--vw-base));
    height: 2px;
}

.dot-label {
    position: absolute;
    right: 1.5vw;
    top: 50%;
    transform: translateY(-50%) translateX(10px);
    white-space: nowrap;
    font-size: calc(10*var(--vw-base));
    color: #756b66;
    font-family: "Lora", serif;
    font-weight: 400;
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s ease;
}

.dot:hover .dot-label {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}




/* 左右交錯排版 */
.row {
    flex-direction: row;
}

.row-reverse {
    flex-direction: row-reverse;
}


/* Swiper*/
.flow-swiper {
    width: calc(510*var(--vw-base));
    height: calc(565*var(--vw-base));
    margin: 0 auto;
    overflow: hidden;
}

.flow-swiper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* 確保圖片填滿 500x500 不變形 */
}

/* 確保文字可見 */
.flow-path-text {
    fill: #756b66;
    opacity: 0;
    /* 初始透明，由 GSAP 觸發 */
    pointer-events: none;
    dominant-baseline: middle;
}

/* 讓 SVG 內容可以超出畫布邊界，防止文字被切掉 */
.flow-svg-bg svg {
    overflow: visible !important;
}

/* 確保導覽點在所有 SVG 之上 */
#navDots.nav-dots {
    position: fixed !important;
    z-index: 99999 !important;
    /* 最高層級 */
    pointer-events: auto !important;
    /* 確保可點擊 */
}

#navDots .dot {
    cursor: pointer !important;
    pointer-events: auto !important;
}

/* 防止透明的 SVG 容器擋住點擊路徑 */
.flow-svg-bg {
    pointer-events: none !important;
    /* 讓點擊訊號可以「穿透」SVG 容器 */
}


.flow-container {
    width: 100%;
    height: calc(950*var(--vw-base));
    position: relative;
    z-index: 10;
    pointer-events: auto !important;
    margin: 0 auto;
    padding: 0;
}

.flow-text {
    width: calc(420*var(--vw-base));
}

.flow-image {
    /*background-color: #756b66;*/
}

.flow-text h2 {
    color: #756b66;
    font-size: calc(22 * var(--vw-base));
    line-height: calc(30 * var(--vw-base));
    font-weight: 700;
    font-family: 'Noto Serif TC', sans-serif;
    letter-spacing: 0.1em;
    margin-bottom: 0;
}

.flow-text h3 {
    color: #756b66;
    font-size: calc(18 * var(--vw-base));
    line-height: calc(40 * var(--vw-base));
    font-family: 'Noto Serif TC', sans-serif;
    letter-spacing: 0.05em;
    text-align: justify;
    text-align-last: left;
    text-justify: inter-ideograph;
}

.flow-text p {
    color: #756b66;
    font-size: calc(16 * var(--vw-base));
    line-height: calc(33 * var(--vw-base));
    font-family: 'Noto Serif TC', sans-serif;
    letter-spacing: 0.05em;
    text-align: justify;
    text-align-last: left;
    text-justify: inter-ideograph;
}

#block-0 .flow-text {
    position: absolute;
    top: 15vw;
    left: 33vw;
}

#block-0 .flow-image {
    position: absolute;
    bottom: 0;
    left: 60vw;
}


#block-1 .flow-text {
    position: absolute;
    top: 15vw;
    left: 31vw;
}

#block-1 .flow-image {
    position: absolute;
    top: 10vw;
    left: -3vw;
}


#block-2 .flow-text {
    position: absolute;
    top: 16vw;
    left: 30vw;
}

#block-2 .flow-image {
    position: absolute;
    top: 10vw;
    left: 55.65vw;
}


#block-3 .flow-text {
    width: calc(500*var(--vw-base));
    position: absolute;
    top: 15vw;
    left: 15.5vw;
}

#block-3 .flow-image {
    position: absolute;
    top: 10vw;
    left: 55.65vw;
}


#block-4 .flow-text {
    width: calc(500 * var(--vw-base));
    position: absolute;
    top: 15vw;
    left: 53vw;
}

#block-4 .flow-image {
    position: absolute;
    top: 12vw;
    left: 15vw;
}


#block-5 .flow-text {
    width: calc(430 * var(--vw-base));
    position: absolute;
    top: 17vw;
    left: 41.5vw;
}

#block-5 .flow-image {
    position: absolute;
    top: 13vw;
    left: 9vw;
}


#block-6 .flow-text {
    width: calc(470 * var(--vw-base));
    position: absolute;
    top: 15vw;
    left: 26vw;
}

#block-6 .flow-image {
    position: absolute;
    top: 10vw;
    left: 60vw;
}


#block-7 .flow-text {
    width: calc(500 * var(--vw-base));
    position: absolute;
    top: 12.5vw;
    left: 53vw;
}

#block-7 .flow-image {
    position: absolute;
    top: 10vw;
    left: 20vw;
}


.logo-social {
    width: calc(560 * var(--vw-base));
    position: relative;

    /* 改用 Grid 佈局 */
    display: grid;
    /* 設定一列有 5 個，每個佔用 1份剩餘空間 (1fr) */
    grid-template-columns: repeat(5, 1fr);

    /* 設定欄與列之間的間距 */
    /* 這裡延用你原本的 40 比例，也可以根據需求分開設定 row-gap 和 column-gap */
    gap: calc(40 * var(--vw-base));
}


.logo-social-icon {
    position: relative;
    width: calc(70 * var(--vw-base));
    height: calc(60 * var(--vw-base));
    background-size: 0 !important;
    margin: 0 auto;
}

.logo-social-icon:before {
    content: "";
    position: absolute;
    inset: 0px;
    z-index: 1;
    pointer-events: none;
}

.logo-social-icon::after {
    content: "";
    position: absolute;
    right: -1vw;
    top: calc(25 * var(--vw-base));
    background-color: #756b66;
    width: 1px;
    height: calc(30 * var(--vw-base));
}

.logo-social-icon:nth-child(5)::after,
.logo-social-icon:last-child::after {
    background-color: transparent;
}

.logo-social-icon img {
    width: 100%;
    height: auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    transition: transform 0.6s ease;
    /* 防止圖片邊緣也出現奇怪的採樣 */
    backface-visibility: hidden;
}

.logo-all {
    position: relative;
    width: calc(607 * var(--vw-base));
    height: calc(167 * var(--vw-base));
}

.logo-all img {
    object-fit: contain;
}

/* =========================================
   MAIN4
========================================= */
.main4 {
    position: relative;
    width: 100%;
    height: calc(950*var(--vw-base));
    overflow: hidden;
    background-color: #eae0d7;
    z-index: 10;
}

.main4>img {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 標題區 */
.m4-txt {
    position: absolute;
    top: 0vw;
    left: 0;
    width: 50vw;
    z-index: 105;
}

.m4-txt-title {
    position: absolute;
    left: 10.4vw;
    top: 3.5vw;
    width: calc(287 * var(--vw-base));
    height: calc(365 * var(--vw-base));
    transition: all .35s ease-in-out;
    opacity: 0;
}

.m4-txt-title .t1 {
    color: #b6aaa0;
    font-family: "Lora", serif;
    font-weight: 600;
    font-size: calc(48 * var(--vw-base));
    line-height: 3vw;
    letter-spacing: 0.08em;
    writing-mode: vertical-rl;
}

.m4-txt-title .t2 {
    position: absolute;
    left: -7.6vw;
    top: 8vw;
    color: #b6aaa0;
    width: 10vw;
    text-align: right;
    line-height: 3vw;
    font-size: calc(22 * var(--vw-base));
    font-family: 'Noto Serif TC', sans-serif;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.m4-txt-title.active {
    animation: m4-title 1.5s ease;
    animation-delay: 1s;
    animation-fill-mode: forwards;
}

@keyframes m4-title {
    0% {
        opacity: 0;
        left: 9.4vw;
    }

    100% {
        opacity: 1;
        left: 10.4vw;
    }
}


.m4-txt-title img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.m4-txt-line {
    width: 0vw;
    height: 1px;
    background-color: rgba(89, 80, 76, 1);
    position: absolute;
    left: 9.8vw;
    top: 0.45vw;
    transition: all .5s ease-in-out;
}

.m4-txt-line.active {
    animation: m4-line 1s linear;
    animation-delay: 1s;
    animation-fill-mode: forwards;
}

@keyframes m4-line {
    0% {
        width: 0vw;
    }

    100% {
        width: 4.5vw;
    }
}

/* 左側遮罩圖 */
.m4-mask {
    width: calc(260*var(--vw-base));
    height: calc(950*var(--vw-base));
    z-index: 90;
    position: absolute;
    left: 0;
    top: 0;
}

/* 分隔線（你原本三條線） */
.m4-line1,
.m4-line2,
.m4-line3 {
    width: 1px;
    height: calc(0*var(--vw-base));
    background-color: rgba(137, 126, 121, 0.5);
    position: absolute;
    overflow: hidden;
    z-index: 100;
}

.m4-line4,
.m4-line5 {
    width: 100%;
    height: 1px;
    background-color: rgba(137, 126, 121, 0.5);
    position: absolute;
    overflow: hidden;
    z-index: 100;
}

.m4-line4 {
    position: absolute;
    top: 0;
    left: 0;
}

.m4-line5 {
    position: absolute;
    bottom: 0;
    left: 0;
}

.m4-line1 {
    left: 12.7vw;
    top: 0;
}

.m4-line2 {
    left: 69vw;
    bottom: 0;
}

.m4-line3 {
    left: 86.5vw;
    top: 0;
}

.m4-line1.active {
    animation: m4-1-line 2s linear;
    animation-fill-mode: forwards;
}

.m4-line2.active {
    animation: m4-2-line 2s linear;
    animation-delay: 0.5s;
    animation-fill-mode: forwards;
}

.m4-line3.active {
    animation: m4-3-line 2s linear;
    animation-delay: 1s;
    animation-fill-mode: forwards;
}

@keyframes m4-1-line {
    from {
        height: 0
    }

    to {
        height: calc(1950*var(--vw-base));
    }
}

@keyframes m4-2-line {
    from {
        height: 0
    }

    to {
        height: calc(1950*var(--vw-base));
    }
}

@keyframes m4-3-line {
    from {
        height: 0
    }

    to {
        height: calc(1950*var(--vw-base));
    }
}


/* ===============================
   M4 基本版型
================================ */
:root {
    /* ===== 等比系統（照你站的慣例） ===== */
    --vw-base: calc(100vw / 1920);

    --bg: #eae0d7;
    --ink: #111;
    --muted: rgba(0, 0, 0, .55);
    --line: rgba(0, 0, 0, .18);

    /* ===== 線位置（照圖） ===== */
    --line2: 69vw;
    --line3: 86.5vw;

    /* ===== 卡片尺寸（照圖：正方形） ===== */
    --cardW: calc(336 * var(--vw-base));
    --imgH: calc(336 * var(--vw-base));

    /* 向上長的高度 */
    --imgGrow: calc(50 * var(--vw-base));

    /* ===== 關鍵：間距（照圖偏大） =====
     設計稿 px(@1920)，JS 會換算成 px */
    --gapDesign: 185;

    /* ===== 關鍵：讓第 3 張落在兩線中間 =====
     這個值我已經用「目標 band 中心」反推過，參考圖會很接近 */
    --stageLeft: calc(283 * var(--vw-base));

    /* ===== 右邊露出第四張 ===== */
    --peek: calc(230 * var(--vw-base));
}

/* ✅ 裁切到「線3 + peek」：只露一點點第四張 */
.m4-clip {
    position: relative;
    width: calc(var(--line3) + var(--peek));
    max-width: 100vw;
    overflow: visible;
    margin-top: calc(150 * var(--vw-base));
    z-index: 80;
}


/* Swiper */
#m4Swiper {
    width: 100%;
    overflow: visible;
}

#m4Swiper .swiper-wrapper {
    display: flex;
    flex-wrap: nowrap;
    align-items: flex-start;
    padding-left: var(--stageLeft);
}

#m4Swiper .swiper-slide {
    width: var(--cardW) !important;
    flex: 0 0 auto !important;
    margin-right: 0;
    /* 間距交給 spaceBetween */
}

#m4Swiper {
    position: relative;
    /* ✅ 讓 Swiper 容器本身覆蓋你想要可拖的整塊高度
     你可以依你的版型調大一點 */
    padding-bottom: calc(120 * var(--vw-base));
}

#m4Swiper .m4-drag-layer {
    position: absolute;
    inset: 0;
    z-index: 0;
    /* ✅ 在背後 */
    background: transparent;
}

/* ✅ slides / scrollbar 在上層 */
#m4Swiper .swiper-wrapper,
#m4Swiper .swiper-scrollbar {
    position: relative;
    z-index: 2;
}

/* 游標手勢（可選） */
.m4-clip {
    cursor: grab;
}

.m4-clip:active {
    cursor: grabbing;
}


/* 卡片 */
.m4-card {
    display: block;
    text-decoration: none;
    color: inherit;
    user-select: none;
}

/* ✅ 1) thumb 永遠固定「最大高度」 */
.m4-thumb {
    position: relative;
    width: 100%;
    height: calc(var(--imgH) + var(--imgGrow));
    /* ✅ 最大高度 */
    overflow: hidden;
    background: #000;

    /* ✅ 預設裁切：只顯示 imgH（從上裁掉 grow 的量） */
    clip-path: inset(var(--imgGrow) 0 0 0);
    transition: clip-path 0.8s cubic-bezier(.16, 1, .3, 1);
    will-change: clip-path;
}

/* ✅ 2) 圖片：底部對齊（很重要） */
.m4-thumb img {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    /* ✅ 貼底 */
    top: auto;
    /* ✅ 不要 top:0 */
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center bottom;
    /* ✅ 取景偏底 */
    display: block;
}

/* ✅ 3) 遮色片：預設開 */
.m4-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background-color: #59504c;
    opacity: 0.5;
    z-index: 2;
    pointer-events: none;
    transition: opacity 0.55s cubic-bezier(.2, .8, .2, 1);
    will-change: opacity;
}


.m4-sline {
    width: 1vw;
    height: 1px;
    position: relative;
    margin: 1vw 0.5vw 0 0.5vw;
    padding: 0;
    background-color: #897e79;
}

.m4-meta {
    width: 100%;
    position: relative;
    padding-top: 10px;
}

.m4-date {
    font-size: calc(22 * var(--vw-base));
    line-height: calc(30 * var(--vw-base));
    letter-spacing: .2em;
    color: #897e79;
    margin: 0;
    font-family: "Lora", serif;
    font-weight: 600;
    padding: 0 10px;
}

.m4-title {
    letter-spacing: .2em;
    margin: 0;
    color: #897e79;
    font-size: calc(22 * var(--vw-base));
    line-height: calc(22 * var(--vw-base));
    font-family: "Noto Serif TC";
    font-weight: 700;
    padding: 0 10px;
}

.m4-sline {
    width: 1vw;
    height: 1px;
    position: relative;
    margin: 1vw 0.5vw 0 0.5vw;
    padding: 0;
    background-color: #897e79;
}

.m4-desc {
    letter-spacing: .2em;
    margin: 0;
    color: #897e79;
    font-size: calc(16 * var(--vw-base));
    font-family: "Noto Serif TC";
    line-height: calc(30 * var(--vw-base));
    opacity: 0;
    transition: opacity 0.55s cubic-bezier(.2, .8, .2, 1);
    will-change: opacity;
    text-align: justify;
    text-align-last: left;
    text-justify: inter-ideograph;
    padding: 20px 10px;
}

.m4-date,
.m4-title,
.m4-desc {
    display: block;
    transform: scaleX(0.95);
    transform-origin: left center;
}

#m4-news-swiper .swiper-slide.is-focus .m4-desc {
    opacity: 1;
}

/* slot4 首屏隱藏 */
#m4-news-swiper .swiper-slide.is-slot4.is-hidden {
    opacity: 0;
}

/* ✅ focus：遮色片關 + desc 顯示（你原本保留） */
.swiper-slide.is-focus .m4-thumb::after {
    opacity: 0;
}

/* ===============================
   scrollbar
================================ */
#m4-scroll {
    position: absolute !important;
    left: 15vw !important;
    right: auto !important;
    top: 37vw !important;
    bottom: auto !important;
    height: 3px !important;
    margin: 0 !important;
    background: transparent !important;
    overflow: hidden !important;
    border-radius: 0 !important;
    z-index: 10;
}

#m4-scroll {
    cursor: pointer;
}

#m4-scroll .m4-scrollbar-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 3px;
    background-image: url(../img/m4-barbg.png);
    background-position: 100% 50%;
    background-repeat: no-repeat;
    background-size: contain;
    pointer-events: none;
    z-index: 0;
}

#m4-scroll .swiper-scrollbar-drag {
    height: 1px !important;
    width: 100%;
    position: relative;
    background: rgba(89, 80, 76, 1);
    border-radius: 0;
    left: 0;
    top: 0;
}

/* 這是那個關鍵的「右側特別圖案」 */
.m4-special-pattern {
    position: absolute;
    right: 0;
    top: 0;
    width: 19px;
    height: 3px;
    background-image: url(../img/m4-barbgafdot.png);
    background-size: contain;
    background-repeat: no-repeat;
    background-position: right center;

    opacity: 0;
    /* 預設隱藏 */
    transition: opacity 0.3s ease-out 0.1s;
    z-index: 3;
    /* 確保在 drag 之上或之下，視設計而定 */
    pointer-events: none;
}

/* 當 JS 判定到最右邊時，切換此 Class */
#m4-scroll.is-at-end .m4-special-pattern {
    opacity: 1;
}




/* ✅ focus：永遠是兩線中間那張 */
.swiper-slide.is-focus .m4-thumb::after {
    opacity: 0;
}

.swiper-slide.is-focus .m4-desc {
    opacity: 1;
}


/* 1) clip 當定位容器，避免 absolute 層亂飛 */
#main4 .m4-clip {
    position: relative;
}

/* 2) 裝飾層永遠不吃事件（避免偶發蓋住 swiper） */
#main4 .m4-drag-layer,
#main4 .m4-mask {
    pointer-events: none;
}

/* 3) Shield：預設完全穿透；只有 is-on 才擋 */
#main4 .m4-hover-shield {
    position: absolute;
    inset: 0;
    background: transparent;
    z-index: 20;
    /* 只要高於卡片即可，不要亂拉到 999 */
    pointer-events: none !important;
}

#main4 .m4-hover-shield.is-on {
    pointer-events: auto;
    /* 開啟時才擋 */
}

/* 4) 確保 swiper / 卡片層在 shield 底下（或同層） */
#main4 #m4Swiper {
    position: relative;
    z-index: 10;
}

/* 如果你的 .m4-card 有自己的 z-index，可補強一下 */
#main4 .m4-card {
    position: relative;
    z-index: 11;
}


/* ✅ 只要在滑動/拖曳狀態，一律保持低（不管 hover 不 hover） */
#main4.is-dragging-m4 #m4Swiper .m4-thumb {
    clip-path: inset(var(--imgGrow) 0 0 0) !important;
}

/* ✅ 只有「視覺鎖定」那張，滑到圖片才變高 */
#m4Swiper .swiper-slide.is-focus-lock .m4-thumb:hover,
#m4Swiper .swiper-slide.is-focus-lock .m4-thumb:focus-within {
    clip-path: inset(0 0 0 0);
}

/* 遮色片/desc 也只在「focus-lock + hover 到圖片」才出現變化 */
.m4-thumb::after {
    opacity: .5;
    transition: opacity .55s cubic-bezier(.2, .8, .2, 1);
}

.m4-desc {
    opacity: 0;
    transition: opacity .55s cubic-bezier(.2, .8, .2, 1);
}

#m4Swiper .swiper-slide.is-focus-lock .m4-thumb:hover::after,
#m4Swiper .swiper-slide.is-focus-lock .m4-thumb:focus-within::after {
    opacity: 0;
}

#m4Swiper .swiper-slide.is-focus-lock .m4-thumb:hover~.m4-meta .m4-desc,
#m4Swiper .swiper-slide.is-focus-lock .m4-thumb:focus-within~.m4-meta .m4-desc {
    opacity: 1;
}

/* ✅ 拖曳中完全禁止 hover 展開（防抖） */
#main4.is-dragging-m4 .m4-thumb:hover {
    clip-path: inset(var(--imgGrow) 0 0 0) !important;
}

#main4.is-dragging-m4 .m4-thumb:hover::after {
    opacity: .5 !important;
}

#main4.is-dragging-m4 .m4-thumb:hover~.m4-meta .m4-desc {
    opacity: 0 !important;
}